A wearable underwater waist propulsion device

Abstract

This invention relates to a wearable underwater waist-assist device, comprising a power source, thrusters, and a waist belt. A rotatable connector connects the thrusters to the power source. The power source includes a battery compartment and a battery assembly housed within it, with the battery assembly detachably connected to the battery compartment. Two thrusters are positioned opposite each other on either side of the battery compartment and are movably connected to the left and right sides of the battery compartment via the rotatable connector. Each thruster has a waist belt groove on its inner side at its outer end. The rotatable connector is fitted with a telescopic sealing sleeve, each end of which has two sealing surfaces. These sealing surfaces seal the rotatable connector itself, the thrusters, and the battery compartment, respectively. The power source, along with the rotatable connectors and thrusters arranged sequentially on both sides, form a semi-circular body that conforms to the human waist. This wearable underwater waist-assist device offers advantages such as quick and convenient wear, high flexibility, and low operating costs.

Description

Technical Field

[0001] This invention relates to the field of underwater propulsion technology, specifically to a wearable underwater waist propulsion device. Background Technology

[0002] Currently, most underwater boosters or booster devices on the market use wearable fixing devices or waist fixing rings as the base for wearing, and then the thruster, power supply, etc. are respectively installed and externally attached to the wearable fixing device or waist fixing ring.

[0003] For example, Chinese patent CN217100428U, entitled "An Underwater Propulsion Device," mainly includes a wearable fixing device, a power supply fixed to the rear of the wearable fixing device, and thrusters fixed to both sides of the wearable device. One side of the power supply is connected to a control handle via a waterproof cable, and the other side of the power supply is connected to the thrusters via a waterproof cable. This type of underwater propulsion device, by placing the power supply and thrusters separately outside the wearable fixing device, results in a relatively bulky overall propulsion device that is inconvenient to wear and use.

[0004] For example, announcement number CN205469727U, entitled "A Portable Single-Person Underwater Snorkeling Belt-Type Propulsion Device," mainly includes a belt worn around the waist, a buoyancy chamber and two battery packs fixed at the rear of the belt, propellers fixed at the front of both sides of the belt, and a controller and display at the front of the belt. This type of portable single-person underwater snorkeling belt-type propulsion device has a belt-like structure and is a closed-loop belt. While lightweight, the external fixing of the battery packs and propellers can cause strain on the belt, resulting in discomfort for the wearer.

[0005] Both of the above methods of attaching the thruster and power source to the outside of the wearable device or waist ring / belt are not conducive to the overall coordination and consistency of the body when moving forward. Externally mounted thrusters are exposed to the outside, which increases underwater forward resistance and affects the propulsion effect. Summary of the Invention

[0006] This invention provides a wearable underwater waist propulsion device that is quick and convenient to wear, has good sealing performance, good flexibility, and low operating cost.

[0007] To achieve the above objectives, the following technical solutions are employed.

[0008] A wearable underwater waist-assist device includes a power source, thrusters, and a waist belt. Two thrusters and two waist belts are provided. A rotatable connector is also provided between the thrusters and the power source. The power source includes a battery compartment and a battery assembly disposed within the battery compartment, with the battery assembly detachably connected to the battery compartment. Two thrusters are arranged opposite each other on both sides of the battery compartment and are movably connected to the left and right sides of the battery compartment via the rotatable connector. Each thruster has a waist belt groove on its inner side at its outer end, forming a fixed ring with the thruster. A telescopic sealing sleeve is fitted onto the rotatable connector. Each end of the telescopic sealing sleeve has two sealing surfaces. The two sealing surfaces at the thruster end of the telescopic sealing sleeve are respectively sealed to the rotatable connector and the thruster. The two sealing surfaces at the power source end of the telescopic sealing sleeve are respectively sealed to the rotatable connector and the battery compartment. The power source, the rotatable connector, and the thrusters arranged sequentially on both sides form a semi-circular body that conforms to the human waist.

[0009] In the above technical solution, the power supply is placed in the center, and the two sides of the power supply are connected to the thrusters through rotatable connectors. Finally, two adjustable waist belts are connected by passing through the waist belt slots on the thrusters, so that the power supply, thrusters, and waist belts together form a ring-shaped main body. The thrusters can rotate relative to the power supply at a certain angle. Using this technical solution, the booster device is worn on the waist, and the thrusters and power supply are also part of the ring-shaped main body. It is not only quick and convenient to wear, but also effectively solves the problem of high underwater resistance caused by the thrusters and power supply being externally attached to the waist thruster or waist belt in the prior art. It effectively reduces water resistance, and the entire propulsion device is installed close to the waist, which has better stability and more flexible use. The power supply mainly consists of a battery compartment and battery modules. The battery modules are detachably connected to the battery compartment, so when the battery is low or damaged, only the battery modules in the battery compartment need to be replaced, eliminating the need to disassemble the entire power supply due to battery problems. This not only effectively saves costs but also greatly simplifies operation. The power supply is centrally located and connected to the thrusters on both sides via rotatable connectors. These rotatable connectors are detachably connected to the battery compartment and the thrusters, respectively. A telescopic sealing sleeve is fitted onto each rotatable connector, with one end of the telescopic sealing sleeve connected to the rotatable connector. The component and the thruster form a double-sealed connection structure, and the other end forms a double-sealed connection structure with the rotatable connector and the battery compartment. Firstly, this facilitates installation and provides strength support for the battery compartment and the thruster. Secondly, it can be used to connect the thruster and the battery compartment, allowing the thruster to rotate relative to the battery compartment, thus improving the flexibility of the semi-circular body to fit the human waist. Thirdly, it effectively solves the sealing problem between the power supply and the thruster and the rotatable connector, thereby ensuring the sealing performance of the waist propulsion device. The waist belt groove at the outer end of the thruster, together with the thruster, forms a fixing ring for the waist belt to pass through.

[0010] Furthermore, the belt has a split structure, including a first belt and a second belt made of soft material. Both the first belt and the second belt are adjustable belts. The first belt and the second belt are respectively used to pass through the fixing rings on the two thrusters to form a detachable connection with the thrusters.

[0011] In the above technical solution, the belt is a split structure design consisting of a first belt and a second belt made mainly of soft material. After the first belt and the second belt pass through the fixing rings at the outer ends of the two pushers, the two ends are detachably connected. Compared with the existing fixed snap-in mechanical belt, it is more flexible in operation, has a wider range of applications, and does not have the problem of easy corrosion and connection difficulties of mechanical belts.

[0012] Furthermore, the thruster includes a thruster housing and a booster structure. The thruster housing includes an upper shell and a lower shell. The upper and lower parts of the booster structure are respectively snap-fitted to the upper shell and the lower shell. The top and bottom ends of the booster structure are respectively detachably connected to a water inlet cover and a water outlet cover.

[0013] In the above technical solution, the thruster includes a thruster housing. The thruster housing is designed to house the thruster booster structure inside, avoiding the problem of increased underwater drag caused by the thruster being exposed to the outside in the prior art. This effectively reduces the thruster's resistance during propulsion and improves its propulsion performance. The thruster housing adopts a split structure consisting of an upper shell and a lower shell, and the upper and lower parts of the booster structure are respectively snap-fitted to the upper and lower shells of the thruster housing, facilitating the installation of the booster structure. During installation, one end of the booster structure can be snap-fitted to the upper or lower shell first, and then the other end can be installed, making installation convenient and quick. The water inlet and outlet shields at the top and bottom of the booster structure are detachably connected to the booster structure, facilitating the installation and replacement of the booster structure.

[0014] Furthermore, the booster structure includes a duct and a propeller located inside the duct. There is a gap of less than 1 mm between the outer edge of the propeller and the inner surface of the duct. A motor is installed inside the duct, and the propeller is fixed on the output shaft of the motor.

[0015] In the above technical solution, the propeller is driven to rotate by a motor. The design of the gap between the propeller and the inner surface of the duct is less than 1mm. The smaller gap can improve the thrust of the booster structure and thus improve the blade rotation efficiency.

[0016] Furthermore, the inner surface of the duct is an arc-shaped surface, and the diameter of the duct at the point corresponding to the propeller is smaller than the diameter of the duct at the inlet and outlet ends.

[0017] In the above technical solution, the inner surface of the duct adopts an arc-shaped surface design with a large diameter at the inlet and outlet and a small diameter in the middle. This allows water to enter the blade and flow into the outlet through the highest part of the arc, effectively improving the water flow speed and efficiency, thereby improving the propulsion efficiency of the propeller.

[0018] Furthermore, the propeller is composed of a propeller cap and three blades evenly distributed on the outer periphery of the propeller cap. The blades are spirally arranged on the outer circumference of the propeller cap, and the cross-section of the blades is wing-shaped with a thicker middle and thinner sides.

[0019] In the above technical solution, the blade adopts an airfoil-shaped structure that is thick in the middle and thin at both sides. Compared with the flat blade structure in the prior art, the airfoil-shaped blade has greater blade power, thus making the propulsion effect of the entire propulsion device better.

[0020] Furthermore, both the inlet and outlet sides of the blade are arc-shaped, with the arc curvature of the outlet side being greater than that of the inlet side.

[0021] In the above technical solution, the design of the arc-shaped inlet and outlet sides is more conducive to water intake and discharge; the structural design of the arc curvature of the outlet side being greater than that of the inlet side makes the contact area between the inlet side of the blade and the water larger. When the motor drives the blade to rotate, the water intake of the blade is greater than the water output, which increases the rotational power of the blade and thus effectively improves the propulsion effect of the thruster.

[0022] Furthermore, the rotatable connector includes a thruster connector and a battery compartment connector, which are rotatably connected by a rotating shaft. The outer end of the thruster connector is detachably connected to the thruster housing on the thruster, and the outer end of the battery compartment connector is detachably connected to the battery compartment.

[0023] In the above technical solution, the thruster connector and the battery compartment connector are rotatably connected, allowing the thrusters on both sides of the power source to be rotated and adjusted relative to the power source. Compared with the traditional method of using a telescopic tube to connect and adjust the thruster and battery compartment, this method is not only more convenient to operate and has a wider range of applications, suitable for people of different body types, but also provides more stable adjustment. The thruster connector is detachably connected to the thruster housing by plugging in, and the outer end of the battery compartment connector is detachably connected to the battery compartment by plugging in, which facilitates installation and replacement, provides greater flexibility, and effectively reduces operating costs.

[0024] Furthermore, a telescopic sealing sleeve is fitted at the connection between the thruster connector and the battery compartment connector, and the two ends of the telescopic sealing sleeve are respectively sealed to the thruster housing and the battery compartment.

[0025] In the above technical solution, the telescopic sealing sleeve is used to protect the thruster connector and the battery compartment connector, ensuring the flexibility of the thruster relative to the power source. At the same time, it forms a sealed connection between the power source and the thruster, ensuring the waterproof effect of the thruster's power source.

[0026] Furthermore, the battery compartment includes a battery compartment body and a battery compartment base. The upper part of the battery compartment body is a battery component mounting slot, and the lower part of the battery compartment body is a sealed compartment mounting slot. The battery component mounting slot is used to install a battery component that is detachably connected to the battery component mounting slot, and a sealed compartment structure is placed in the sealed compartment mounting slot.

[0027] In the above technical solution, the upper battery module mounting slot of the battery compartment is used to detachably install the battery module in the battery module mounting slot, and the lower sealing compartment mounting slot of the battery compartment is used to install the sealing compartment structure in the sealing compartment mounting slot. The design of the battery compartment being divided into upper and lower parts allows the battery module and the sealing compartment structure to be installed in the upper and lower parts of the battery compartment respectively. This structure is not only reasonably designed, making the overall power supply structure compact and occupying little space, but also adds a sealing compartment structure to ensure the sealing performance of the power supply, thereby effectively ensuring the service life of the power supply and reducing the cost of use.

[0028] Furthermore, the sealed chamber structure includes a sealed chamber top cover and a sealed chamber bottom cover. A PCBA control board is provided between the sealed chamber top cover and the sealed chamber bottom cover. The PCBA control board is provided with a battery female socket, multiple female connectors, and a low-power vibration motor. A sleeve protruding upward is provided at the center of the top of the sealed chamber top cover. The sealed chamber top cover is also provided with multiple male connectors that extend into the sealed chamber top cover and are connected to the female connectors via pin-insertion. The battery female socket, female connectors, male connectors, and sleeve are all provided with one or more sealing grooves. The sealed chamber top cover is also provided with an end sealing groove at the position corresponding to the male connector. A sealing ring is provided in both the sealing groove and the end sealing groove.

[0029] In the above technical solution, the sealing grooves on the male and female connectors create a multi-layered sealing structure between them and the sealing chamber cover. The end sealing groove on the sealing chamber cover, located outside the outer circumference of the male connector, creates a sealed connection between the sealing chamber cover and the connector sealing cover on the male connector, ensuring the sealing performance and effectiveness of the wiring connection. A protruding sleeve at the top center of the sealing chamber cover is used to engage with the battery assembly; the sealing groove on the outside of the sleeve creates a sealed structure at the connection between the sleeve and the battery assembly. The battery female connector on the PCBA control board, corresponding to the sleeve, and the sealing groove on the battery female connector, create a sealed connection with the sleeve when the battery female connector is inserted into the sleeve. This technical solution achieves sealing connections from both the outer circumference and the top of the connector, and simultaneously, through a double sealing connection inside and outside the sleeve at the battery power supply connection, effectively realizing the sealing performance of the sealing chamber structure and ensuring its sealing effect.

[0030] Compared with the prior art, the wearable underwater waist-support device of the present invention has the following advantages:

[0031] The device is quick and easy to wear, offering excellent flexibility. It features a centrally located power source with rotatable connectors on either side to link to the thrusters. Two adjustable waist belts pass through grooves on the thrusters, forming a ring-shaped structure. The thrusters have a certain degree of rotational space relative to the power source. This design allows the propulsion device to be worn around the waist, with the thrusters and power source also forming part of the ring. This not only makes it quick and easy to wear but also effectively solves the problem of high underwater resistance caused by externally mounted thrusters and power sources on waist-mounted devices or belts in existing technologies. It effectively reduces water resistance, and the entire propulsion device fits snugly around the waist, resulting in better stability and greater flexibility.

[0032] The power supply has low operating costs. It mainly consists of a battery compartment and a battery module. The battery module is detachably connected to the battery compartment. When the battery power is low or the battery is damaged, there is no need to replace the entire power supply. Only the battery module in the battery compartment needs to be replaced. This avoids the problem of having to disassemble the entire power supply due to battery problems. It not only effectively saves costs, but also greatly simplifies operation.

[0033] With a wide range of applications, the belt groove at the outer end of the thruster forms a fixing ring together with the thruster for the belt to pass through. In this design, the belt is a split structure consisting of a first belt and a second belt made mainly of soft material. After the first belt and the second belt pass through the fixing rings at the outer ends of the two thrusters, the two ends are detachably connected. Compared with the existing fixed-clamp mechanical belt, it is more flexible in operation, has a wider range of applications, and does not have the problem of easy corrosion and connection difficulties of mechanical belts. Attached Figure Description

[0034] Figure 1 This is a perspective view of the wearable underwater waist-supported propulsion device of the present invention.

[0035] Figure 2 This is a perspective view of the main body of the wearable underwater waist propulsion device of the present invention, excluding the waist belt.

[0036] Figure 3 for Figure 1 A 3D view of the thruster;

[0037] Figure 4 for Figure 1 Exploded view of the thruster;

[0038] Figure 5 for Figure 4 Exploded view of the thruster excluding the outer casing;

[0039] Figure 6 for Figure 4 A three-dimensional view of the booster structure of the central thruster;

[0040] Figure 7 for Figure 4 Top view of the booster structure of the central thruster;

[0041] Figure 8 for Figure 7 AA section view;

[0042] Figure 9 for Figure 6 A 3D view of the propeller;

[0043] Figure 10 for Figure 6 Top view of the propeller;

[0044] Figure 11 for Figure 1 A perspective view of the rotatable connector;

[0045] Figure 12 for Figure 1 Exploded view of the rotatable connector;

[0046] Figure 13 for Figure 1 A 3D view of the power supply;

[0047] Figure 14 for Figure 1 Exploded view of the power supply;

[0048] Figure 15 for Figure 14 A three-dimensional view of the central sealed chamber structure;

[0049] Figure 16 for Figure 14 Exploded view of the central sealing chamber structure. Detailed Implementation

[0050] The wearable underwater waist propulsion device of the present invention will be described in further detail below with reference to specific embodiments and accompanying drawings.

[0051] Reference Figures 1 to 4 and Figure 12According to a non-limiting embodiment of the present invention, a wearable underwater waist propulsion device includes a power supply 100, a thruster 300, and a waist belt 400. There are two thrusters 300 and two waist belts 400. A rotatable connector 200 is provided between the thruster 300 and the power supply 100. The power supply 100 includes a battery compartment 110 and a battery assembly 120 disposed within the battery compartment 110. The battery assembly 120 is detachably connected to the battery compartment 110. There are two thrusters 300, which are distributed opposite to each other on both sides of the battery compartment 110 and are respectively connected to the battery compartment via the rotatable connector 200. The left and right sides of 110 are movably connected. The inner side of the outer end of each of the two thrusters 300 is provided with a belt groove 3121. The belt groove 3121 and the thruster 300 together form a fixed ring. The rotatable connector 200 is fitted with a telescopic sealing sleeve 230. The telescopic sealing sleeve 230 has two sealing surfaces at both ends. The two sealing surfaces of the telescopic sealing sleeve 230 at one end of the thruster 300 are respectively sealed and connected to the rotatable connector 200 and the thruster 300. The two sealing surfaces of the telescopic sealing sleeve 230 at one end of the power supply 100 are respectively sealed and connected to the rotatable connector 200 and the battery compartment 110. In this embodiment, the power supply 100 is placed in the center, and the two sides of the power supply 100 are connected to the thruster 300 through rotatable connectors 200. Finally, two adjustable waist belts are connected by passing through the waist belt grooves 3121 on the thruster 300, so that the power supply 100, the thruster 300 and the waist belt 400 together form a ring-shaped body. The thruster 300 can have a certain angle of rotation relative to the power supply 100. Using this technical solution, the booster device is worn on the waist of the human body. The thruster 300 and the power supply 100 are also part of the ring-shaped body. It is not only quick and convenient to wear, but also effectively solves the problem of high underwater resistance caused by the thruster 300 and the power supply 100 being hung outside the waist push device or the waist belt 400 in the prior art. It effectively reduces water resistance. The entire propulsion device is installed close to the waist of the human body, which has better stability and more flexible use.The power supply 100 mainly consists of a battery compartment 110 and a battery assembly 120. The battery assembly 120 is detachably connected to the battery compartment 110. When the battery power is insufficient or the battery is damaged, it is not necessary to replace the entire power supply 100; only the battery assembly 120 inside the battery compartment 110 needs to be replaced. This avoids the problem of having to disassemble the entire power supply 100 due to battery issues, effectively saving costs and greatly simplifying operation. The power supply 100 is placed in the center, and its two sides are connected to the thrusters 300 via rotatable connectors 200. The rotatable connectors 200 are detachably connected to the battery compartment 110 and the thrusters 300, respectively. At the same time, a telescopic sealing sleeve 230 is fitted on the rotatable connector 200. One end of the telescopic sealing sleeve 230 forms a double-sealed connection with the rotatable connector 200 and the thrusters 300, and the other end forms a double-sealed connection with the rotatable connector 200 and the battery compartment 110. Specifically, in this embodiment, the telescopic sealing sleeve... 230 is a telescopic silicone sealing sleeve made of silicone material. Firstly, it facilitates installation and provides structural support for the battery compartment 110 and the thruster 300. Secondly, it connects the thruster 300 and the battery compartment 110, allowing the thruster 300 to rotate relative to the battery compartment 110, thus improving the flexibility of the semi-circular body to fit the human waist. Thirdly, the silicone provides a good seal; by setting two sealing surfaces at each end of the silicone sealing sleeve, it effectively solves the sealing problem between the power supply 100 and the thruster 300 and the rotatable connector 200, ensuring a good seal and thus ensuring the sealing performance of the waist-mounted thruster device. The waist belt groove 3121 at the outer end of the thruster 300, together with the thruster 300, forms a fixing ring for the waist belt 400 to pass through. The power supply 100, together with the rotatable connector 200 and the thruster 300 arranged sequentially on both sides, form a semi-circular body that adapts to the human waist.

[0052] Reference Figures 1 to 4 In a non-limiting embodiment of the present invention, the belt 400 is a split structure, including a first belt 410 and a second belt 420 made of soft material. Both the first belt 410 and the second belt 420 are adjustable belts. The first belt 410 and the second belt 420 are respectively used to pass through the fixing rings on the two pushers 300 to form a detachable connection with the pushers 300. After the first belt 410 and the second belt 420 pass through the fixing rings on the pushers, they are quickly connected by quick-connect buckles. In this embodiment, the belt 400 is a split belt 400 design mainly composed of a first belt 410 and a second belt 420 made of soft material. After the first belt 410 and the second belt 420 pass through the fixing rings at the outer ends of the two pushers 300, the two ends are detachably connected. Compared with the existing fixed-clamp mechanical belt 400, it is more flexible in operation, has a wider range of applications, and does not have the problem of easy corrosion and connection difficulties that occur with mechanical belts 400.

[0053] Reference Figures 1 to 4 In a non-limiting embodiment of the present invention, the thruster 300 includes a thruster housing 310 and a booster structure 320. The thruster housing 310 includes an upper shell 311 and a lower shell 312. The upper and lower parts of the booster structure 320 are respectively snap-fitted to the upper shell 311 and the lower shell 312. The top and bottom ends of the booster structure 320 are respectively detachably connected to a water inlet cover 330 and a water outlet cover 340. In this embodiment, the thruster 300 includes a thruster housing 310. The thruster housing 310 is configured to house the booster structure 320 within the thruster housing 310, avoiding the problem of increased underwater forward resistance caused by the thruster 300 being exposed to the outside in the prior art. This effectively reduces the resistance of the thruster 300 during propulsion and improves the propulsion effect of the thruster 300. The thruster housing 310 adopts a split structure composed of an upper shell 311 and a lower shell 312, and the booster structure 320... The upper and lower parts of the thrust structure 320 are snap-fitted to the upper shell 311 and lower shell 312 of the propeller housing 310, respectively, which facilitates the installation of the thrust structure 320. During installation, one end of the thrust structure 320 can be snap-fitted to the upper shell 311 or lower shell 312 first, and then the other end can be installed, which is convenient and quick. The water inlet cover 330 and water outlet cover 340 at the top and bottom of the thrust structure 320 are detachably connected to the thrust structure 320, which facilitates the installation and replacement of the thrust structure 320.

[0054] Reference Figures 4 to 8 In a non-limiting embodiment of the present invention, the booster structure 320 includes a duct 321 and a propeller 322 located within the duct 321. A gap of less than 1 mm is maintained between the outer edge of the propeller 322 and the inner surface of the duct 321. A motor 323 is installed within the duct 321, and the propeller 322 is fixed to the output shaft of the motor 323. In this embodiment, the propeller 322 is driven to rotate by the motor 323. The design of a gap of less than 1 mm between the propeller 322 and the inner surface of the duct 321 further enhances the thrust of the booster structure 320, thereby improving the rotational efficiency of the propeller blade 3222.

[0055] Reference Figures 4 to 8 In a non-limiting embodiment of the present invention, the inner surface of the duct 321 is an arc-shaped surface, and the diameter of the duct 321 corresponding to the propeller 322 is smaller than the diameter of the duct 321 at the inlet and outlet ends. In this embodiment, the inner surface of the duct 321 adopts an arc-shaped surface design with a large diameter at the inlet and outlet ends and a small diameter in the middle, so that after water enters the blade 3222, it flows into the outlet end through the highest part of the arc, effectively improving the water flow velocity and efficiency, thereby improving the propulsion efficiency of the propeller 300.

[0056] Reference Figure 9 and Figure 10In a non-limiting embodiment of the present invention, the propeller 322 is composed of a propeller cap 3221 and three blades 3222 evenly distributed on the outer periphery of the propeller cap 3221. The blades 3222 are spirally arranged on the outer circumference of the propeller cap 3221, and the cross-section of the blades 3222 is wing-shaped, thicker in the middle and thinner at the edges. In this embodiment, the blades 3222 adopt a wing-shaped structure that is thicker in the middle and thinner at the edges. Compared with the flat blade structure 3222 in the prior art, this wing-shaped blade structure 3222 has greater power, thus making the propulsion effect of the entire propeller 300 better.

[0057] Reference Figure 9 and Figure 10 In a non-limiting embodiment of the present invention, both the inlet edge 3223 and the outlet edge 3224 of the propeller blade 3222 are arc-shaped, and the curvature of the outlet edge 3224 is greater than that of the inlet edge 3223. In this embodiment, the design of the arc-shaped inlet edge 3223 and outlet edge 3224 is more conducive to water intake and output; the structural design of the outlet edge 3224 having a greater curvature than the inlet edge 3223 increases the contact area between the inlet edge 3223 of the propeller blade 3222 and the water. When the motor 323 drives the propeller blade 3222 to rotate, the water intake of the propeller blade 3222 is greater than the water output, increasing the rotational power of the propeller blade 3222 and thus effectively improving the propulsion effect of the thruster 300.

[0058] Reference Figure 1 , Figure 2 , Figure 11 and Figure 12 In a non-limiting embodiment of the present invention, the rotatable connector 200 includes a thruster connector 210 and a battery compartment connector 220. The thruster connector 210 and the battery compartment connector 220 are rotatably connected via a rotating shaft 240. The outer end of the thruster connector 210 is detachably connected to the thruster housing 310 on the thruster 300 via a plug-in connection, and the outer end of the battery compartment connector 220 is detachably connected to the battery compartment 110 via a plug-in connection. In this embodiment, the rotatable connection of the thruster connector 210 and the battery compartment connector 220 allows the thrusters 300 on both sides of the power supply 100 to be rotated and adjusted relative to the power supply 100. This makes operation convenient, has a wide range of applications, and is suitable for people of different body types. The detachable plug-in connection between the thruster connector 210 and the thruster housing 310, and the detachable plug-in connection between the outer end of the battery compartment connector 220 and the battery compartment 110, facilitates installation and replacement, provides greater flexibility, and effectively reduces usage costs.

[0059] Reference Figure 1 , Figure 2 , Figure 11 and Figure 12In a non-limiting embodiment of the present invention, a telescopic sealing sleeve 230 is provided at the connection between the thruster connector 210 and the battery compartment connector 220. The two ends of the telescopic sealing sleeve 230 are respectively sealed to the thruster housing 310 and the battery compartment 110. In this embodiment, the telescopic sealing sleeve 230 is provided to protect the thruster connector 210 and the battery compartment connector 220, ensuring the flexibility of the thruster 300 relative to the power supply 100. Simultaneously, it forms a sealed connection between the power supply 100 and the thruster 300, ensuring the waterproof effect of the power supply 100 to the thruster 300.

[0060] Reference Figure 1 , Figure 2 , Figure 13 and Figure 14 In a non-limiting embodiment of the present invention, the battery compartment 110 includes a battery compartment body 111 and a battery compartment base 112. The upper part of the battery compartment body 111 is a battery component mounting groove 1111, and the lower part of the battery compartment body 111 is a sealing compartment mounting groove 1112. The battery component mounting groove 1111 is used to install a battery component 120 that is detachably connected to the battery component mounting groove 1111, and a sealing compartment structure 113 is placed in the sealing compartment mounting groove 1112. In this embodiment, the upper battery assembly mounting slot 1111 of the battery compartment 111 is used to detachably install the battery assembly 120 in the battery assembly mounting slot 1111, and the lower sealing chamber mounting slot 1112 of the battery compartment 111 is used to install the sealing chamber structure 113 in the sealing chamber mounting slot 1112. The design of the battery compartment 111 into upper and lower parts allows the battery assembly 120 and the sealing chamber structure 113 to be installed in the upper and lower parts of the battery compartment 111, respectively. This structure is not only reasonably designed, making the overall structure of the power supply 100 compact and occupying little space, but also adds the sealing chamber structure 113 to ensure the sealing performance of the power supply 100, thereby effectively ensuring the service life of the power supply 100 and reducing the cost of use.

[0061] Reference Figure 1 , Figure 2 , Figures 13 to 16In a non-limiting embodiment of the present invention, the sealed chamber structure 113 includes a sealed chamber upper cover 1 and a sealed chamber bottom cover 2, which are sealed together by a sealed chamber sealing ring 14. A PCBA control board 3 is provided between the sealed chamber upper cover 1 and the sealed chamber bottom cover 2. The PCBA control board 3 is provided with a battery female socket 4, multiple female connectors and a low-power vibration motor 10. From top to bottom, a silicone heat-conducting sheet 12 and a heat sink 13 are also provided between the PCBA control board 3 and the sealed chamber bottom cover 2. A sleeve 11 protruding upward is provided at the center of the top of the sealed chamber upper cover 1. The sealed chamber upper cover 1 is also provided with multiple male connectors that extend into the sealed chamber upper cover 1 and are connected to the female connectors by pin insertion. The battery female socket 4, the female connectors, the male connectors and the sleeve 11 are all provided with one or more sealing grooves. Specifically, the outer circumference of the sleeve 11 is provided with two fourth sealing grooves 18, and the outer circumference of the battery female socket 4 is provided with two third sealing grooves 17; the multiple female connectors include 3P female connectors and 2P female connectors, with two 3P female connectors and two 2P female connectors, symmetrically distributed on the PCBA control board 3 with the battery female socket 4 as the center, and the outer circumference of the 3P female connectors and 2P female connectors is provided with a first sealing groove 16; the multiple male connectors include two 3P male connectors corresponding to the 3P female connectors and two 2P male connectors corresponding to the 2P female connectors, and the outer circumference of the 3P male connectors and 2P male connectors is provided with two second sealing grooves 15; the upper cover of the sealing chamber 1 is provided with mounting holes 20 for the female connectors and male connectors to extend into; the upper cover of the sealing chamber 1 is also provided with an end sealing groove 19 at the position corresponding to the male connectors, and sealing rings are provided in the fourth sealing groove 18 to the second sealing groove 15 and the end sealing groove 19. In this embodiment, a sleeve 11 protruding upwards is provided at the center of the top of the sealing chamber cover 1. The outside of the sleeve is used to connect with the battery assembly, and the inside is used to connect with the battery female socket 4. Specifically, the battery assembly and the battery female socket 4 are connected by a pin-type connection, which is quick and easy to operate. The fourth sealing groove 18 on the outer circumference of the sleeve 11 forms a sealing structure at the connection between the sleeve 11 and the battery assembly. The third sealing groove 17 on the outer circumference of the battery female socket 4 forms a sealing structure at the connection between the battery female socket 4 and the sleeve 11 when it extends into the sleeve 11. The sleeve 11 and the sealing groove on the outer circumference of the battery female socket 4 form a sealed connection between the sealing chamber structure 113 and the battery assembly, ensuring the sealing performance of the battery. In summary, the third sealing groove 17 on the outer circumference of the battery female socket 4 and the fourth sealing groove 18 on the outer circumference of the sleeve 11 form a double seal when the battery assembly is connected to the sealing chamber structure through the inside and outside of the sleeve 11, effectively ensuring the sealing performance and effect of the connection between the battery assembly and the sealing chamber structure.The first sealing groove 16 on the outer circumference of the 3P female and 2P female connectors, and the second sealing groove 15 on the outer circumference of the 3P male and 2P male connectors, ensure that after the female connector and male connector are connected by a pin-type connection, their outer circumferences form a sealed connection with the sealing chamber cover at the corresponding mounting holes 20 on the sealing chamber cover, thus ensuring the sealing performance of the wiring. The sealing groove 19 at the end of the sealing chamber cover 1 corresponding to the male connector forms a sealed connection between the sealing chamber cover and the connector sealing cover located on the male connector, thereby ensuring the sealing performance and effect of the wiring connection in the sealing chamber structure.

[0062] In the description of this invention, it should be understood that terms such as "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and 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 limiting this invention.

[0063] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0064] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0065] The above embodiments are merely specific examples of the present invention, and their descriptions are quite specific and detailed, but they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these obvious substitutions all fall within the protection scope of the present invention.

Claims

1. A wearable underwater waist-support device, comprising a power source, a thruster, and a waist belt, characterized in that: There are two thrusters, and each thruster is equipped with a rotatable connector between itself and the power source. The power source includes a battery compartment and a battery assembly disposed within the battery compartment, wherein the battery assembly is detachably connected to the battery compartment. Two thrusters are distributed opposite each other on both sides of the battery compartment and are movably connected to the left and right sides of the battery compartment through rotatable connectors. The outer side wall of each thruster is provided with a belt groove near the waist, and the belt groove and the thruster together form a fixed ring. The rotatable connector is fitted with a telescopic sealing sleeve. Each end of the telescopic sealing sleeve has two sealing surfaces. The two sealing surfaces of the telescopic sealing sleeve at one end of the thruster are respectively sealed to the rotatable connector and the thruster. The two sealing surfaces of the telescopic sealing sleeve at one end of the power supply are respectively sealed to the rotatable connector and the battery compartment. The power source, together with the rotatable connectors and the pusher arranged sequentially on both sides, forms a semi-circular main body, which is adapted to the waist of the human body; The semi-circular main body and the two waistbands on both sides together form a circular main body.

2. The wearable underwater waist-support propulsion device according to claim 1, characterized in that, The belt is a split structure, including a first belt and a second belt made of soft material. Both the first belt and the second belt are adjustable belts. The first belt and the second belt are respectively used to pass through the fixing rings on the two thrusters to form a detachable connection with the thrusters.

3. The wearable underwater waist-support propulsion device according to claim 2, characterized in that, The thruster includes a thruster housing and a booster structure. The thruster housing includes an upper shell and a lower shell. The upper and lower parts of the booster structure are respectively snap-fitted to the upper shell and the lower shell. The top and bottom ends of the booster structure are respectively detachably connected to a water inlet cover and a water outlet cover.

4. The wearable underwater waist-support propulsion device according to claim 3, characterized in that, The booster structure includes a duct and a propeller located inside the duct. There is a gap of less than 1 mm between the outer edge of the propeller and the inner surface of the duct. A motor is installed inside the duct, and the propeller is fixed on the output shaft of the motor.

5. The wearable underwater waist propulsion device according to claim 4, characterized in that, The inner surface of the duct is arc-shaped, and the diameter of the duct at the point corresponding to the propeller is smaller than the diameter of the duct at the inlet and outlet ends.

6. The wearable underwater waist-support propulsion device according to claim 4, characterized in that, The propeller consists of a propeller cap and three blades evenly distributed on the outer periphery of the propeller cap. The blades are spirally arranged on the outer circumference of the propeller cap. The cross-section of the blades is wing-shaped with a thicker middle and thinner sides. The water inlet and water outlet edges of the blades are both arc-shaped, and the curvature of the water outlet edge is greater than that of the water inlet edge.

7. The wearable underwater waist-assist device according to any one of claims 1 to 6, characterized in that, The rotatable connector includes a thruster connector and a battery compartment connector, which are rotatably connected by a rotating shaft. The outer end of the thruster connector is detachably connected to the thruster housing on the thruster, and the outer end of the battery compartment connector is detachably connected to the battery compartment.

8. The wearable underwater waist-support propulsion device according to claim 7, characterized in that, A telescopic sealing sleeve is fitted at the connection between the thruster connector and the battery compartment connector, and the two ends of the telescopic sealing sleeve are respectively sealed to the thruster housing and the battery compartment.

9. The wearable underwater waist-support device according to any one of claims 1 to 6, characterized in that, The battery compartment includes a battery compartment body and a battery compartment base. The upper part of the battery compartment body is a battery component mounting slot, and the lower part of the battery compartment body is a sealed compartment mounting slot. The battery component mounting slot is used to install a battery component that is detachably connected to the battery component mounting slot. The sealed compartment mounting slot contains a sealed compartment structure.

10. The wearable underwater waist propulsion device according to claim 9, characterized in that, The sealed chamber structure includes a sealed chamber top cover and a sealed chamber bottom cover. A PCBA control board is provided between the sealed chamber top cover and the sealed chamber bottom cover. The PCBA control board is provided with a battery female socket, multiple female connectors, and a low-power vibration motor. The top of the sealed chamber top cover is provided with an upwardly protruding sleeve. The sealed chamber top cover is also provided with multiple male connectors that extend into the sealed chamber top cover and are connected to the female connectors via pin-insertion. The battery female socket, female connectors, male connectors, and sleeve are all provided with one or more sealing grooves. The sealed chamber top cover is also provided with an end sealing groove at the position corresponding to the male connector. A sealing ring is provided in both the sealing groove and the end sealing groove.

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