Underwater propulsion device

Abstract

The application discloses an underwater boosting device, which comprises a cabin body, a propeller arranged in the cabin body, two handles symmetrically arranged on the side of the cabin body, and two connecting assemblies arranged between the cabin body and the handles to rotationally connect the handles and the cabin body. The handles and the cabin body are rotationally connected through the connecting assemblies, so that a diver only needs to rotate the handles to change the direction during diving, and the underwater boosting device is easy to change the direction during diving, thereby improving the use experience of the diver.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of underwater equipment, and particularly relates to an underwater boosting device. BACKGROUND

[0002] Swimming is not only a favorite sports project, but also one of important survival skills. When swimming, people need to use limbs to paddle, so a large amount of physical energy is consumed. Therefore, a booster for assisting divers to swim appears, which drives the diver to swim through the driving force of the booster, so that the diver only needs to hold the booster with both hands, so that the whole swimming process is more smooth, and different entertainment experiences can be brought by the foot clamping booster.

[0003] In the related art, the underwater boosting device includes a cabin body and two handles, so as to assist the diver to swim underwater by simulating the style of an airplane. However, the cabin body and the handle of the underwater boosting device in the related art are fixedly installed, and the cabin body and the handle cannot be rotated, so that the diver needs to rotate the whole underwater boosting device to change the direction when swimming downward or upward. However, it is very laborious to rotate the whole underwater boosting device under the action of underwater pressure, which reduces the user experience. SUMMARY

[0004] The present application aims to at least solve one of the technical problems in the prior art. To this end, the present application provides an underwater boosting device, which can easily change the direction of the underwater boosting device to improve the user experience.

[0005] One embodiment of the present application provides an underwater boosting device, which comprises:

[0006] a cabin body, wherein a propeller is arranged in the cabin body;

[0007] handles, wherein two handles are arranged symmetrically on the side surface of the cabin body;

[0008] connecting assemblies, wherein two groups of connecting assemblies are arranged between the cabin body and the handles to rotatably connect the handles and the cabin body.

[0009] The underwater boosting device of the embodiment of the present application has at least the following beneficial effects: the handles and the cabin body are rotatably connected through the connecting assemblies, so that the diver only needs to rotate the handles to change the direction during diving, which makes the underwater boosting device easy to change the direction during diving, and improves the user experience of the diver.

[0010] According to the underwater boosting device of some other embodiments of the present application, the handle is provided with a first placement cavity, a first connecting hole is formed in the handle near one side of the cabin, a second connecting hole corresponding to the first connecting hole is formed in the cabin, and the connecting assembly comprises:

[0011] a connecting shaft, one end of which is inserted into the first connecting hole of the handle and the other end of which is inserted into the second connecting hole of the cabin, the diameter of the shaft part of the connecting shaft inserted into the second connecting hole being greater than the diameter of the second connecting hole;

[0012] a damping ring, which is sleeved on the connecting shaft and located at the first connecting hole of the handle.

[0013] According to the underwater boosting device of some other embodiments of the present application, a plurality of limiting members are arranged in the first placement cavity of the handle, the limiting members are combined to form a limiting groove, and the connecting assembly further comprises:

[0014] a fixing plate, which is fixedly arranged on the connecting shaft and located in the limiting groove of the handle.

[0015] According to the underwater boosting device of some other embodiments of the present application, the cabin comprises:

[0016] a first upper shell;

[0017] a first lower shell, which is arranged on the first upper shell, the first lower shell and the first upper shell being combined to form a second placement cavity, and the propeller being arranged in the second placement cavity and located at the tail end of the cabin;

[0018] a power supply, which is arranged in the second placement cavity;

[0019] a fixing assembly, which is sleeved on the power supply and fixes the power supply in the second placement cavity.

[0020] According to the underwater boosting device of some other embodiments of the present application, a fixing groove is formed in the first lower shell, and the fixing assembly comprises:

[0021] a fixing box, which is arranged in the fixing groove of the first lower shell and wraps the power supply;

[0022] a fixing cover, which is arranged on the fixing groove and the fixing box of the first lower shell;

[0023] a bearing frame, which is arranged in the fixing box and bears the power supply.

[0024] According to the underwater boosting device of some other embodiments of the present application, the underwater boosting device further comprises:

[0025] A control board is provided with a first connecting interface;

[0026] The fixing assembly further comprises:

[0027] A sleeve column is fixedly arranged on the fixing box;

[0028] A second connecting interface is fixedly connected to the bearing frame, inserted into the sleeve column and connected to the first connecting interface.

[0029] According to the underwater boosting device of some other embodiments of the present application, the first lower shell is provided with a first recess, and the first upper shell is provided with a second recess, and the first recess and the second recess are in an elliptical shape.

[0030] According to the underwater boosting device of some other embodiments of the present application, the first lower shell and the fixing cover are provided with a plurality of railings arranged in the first recess, and the plurality of railings are arranged at equal intervals in the first recess.

[0031] According to the underwater boosting device of some other embodiments of the present application, the two handles are respectively provided with a key groove, and the two key grooves of the two handles are defined as a first key groove and a second key groove, the handle is provided with a speed adjusting button arranged in the first key groove, and the handle is provided with a propelling button arranged in the second key groove.

[0032] According to the underwater boosting device of some other embodiments of the present application, the first upper shell is provided with a camera fixing frame, and the camera fixing frame is provided with a camera connecting interface.

[0033] Other features and advantages of the present application will be set forth in the following description, and in part will become apparent to those skilled in the art from the description, or can be learned by practice of the present application. The objects and other advantages of the present application can be achieved and obtained by means of the structures particularly pointed out in the description and the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0034] Figure 1 is a specific embodiment structure diagram of the underwater boosting device in the embodiments of the present application;

[0035] Figure 2 is a specific embodiment top view of the underwater boosting device in the embodiments of the present application;

[0036] Figure 3 is Figure 2 is a sectional view along line A-A in

[0037] Figure 4 is a specific embodiment explosion diagram of the underwater boosting device in the embodiments of the present application;

[0038] Figure 5 is a specific embodiment explosion schematic diagram of the underwater boosting device in the embodiment of the present application;

[0039] Figure 6 is a specific embodiment explosion schematic diagram of the underwater boosting device in the embodiment of the present application.

[0040] The figure mark: 100, cabin body; 110, second connecting hole; 120, first lower shell; 121, fixed groove; 122, first recess; 123, railing 123; 124, camera fixing frame; 125, camera connecting interface; 130, first upper shell; 131, second recess; 150, fixing assembly; 151, fixing box; 152, fixing cover; 153, bearing frame; 154, sleeve column; 160, second placing cavity; 200, handle; 210, first placing cavity; 220, first connecting hole; 230, limiting piece; 240, limiting groove; 260, first button slot; 261, speed adjusting button; 270, second button slot; 271, propelling button; 280, second lower shell; 281, first connecting column; 290, second upper shell; 291, second connecting column; 300, connecting assembly; 310, connecting shaft; 311, first connecting part; 312, second connecting part; 313, third connecting part; 320, damping ring; 330, fixed plate; 400, control board. DETAILED DESCRIPTION

[0041] The concept and the generated technical effects of the present application will be described below in conjunction with the embodiments, so as to fully understand the purpose, features and effects of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments of the present application, other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0042] In the description of the present application, if the orientation description such as "up", "down", "front", "back", "left", "right" and the like is described, the orientation or position relationship shown in the figure is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application. If a feature is referred to as "set", "fixed", "connected", "installed" on another feature, it can be directly set, fixed, connected or installed on the other feature, or indirectly set, fixed, connected or installed on the other feature.

[0043] In the description of the embodiments of the application, if "several" is referred to, it means one or more, if "multiple" is referred to, it means two or more, if "greater than", "less than", "exceed" are referred to, they should be understood as not including the number itself, if "above", "below", "within" are referred to, they should be understood as including the number itself. If "first", "second" are referred to, they should be understood as distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the sequence of indicated technical features.

[0044] The underwater propulsion device is generally pushed by a propeller to drive the diver to swim underwater. Generally, the diver uses the underwater propulsion device with the underwater propulsion device located below the diver. The diver needs to use the arm strength to rotate the entire underwater propulsion device to change the direction at any time. However, the underwater propulsion device located underwater needs to consume a large amount of strength of the diver to rotate the entire underwater propulsion device, which is inconvenient for the diver to operate, and thus reduces the user experience of using the underwater propulsion device.

[0045] Therefore, the application discloses an underwater propulsion device which can rotate the handle to facilitate the diver to operate the underwater propulsion device underwater, and improve the user experience.

[0046] Referring to Figure 1 , Figure 2 and Figure 3 , the embodiments of the application disclose an underwater propulsion device, comprising: a cabin body 100, a handle 200 and a connecting assembly 300; the cabin body 100 is provided with a propeller; the handle 200 is provided with two, and the two handles 200 are symmetrically arranged on the side surface of the cabin body 100; the connecting assembly 300 is provided with two groups, and the two groups of connecting assemblies 300 are respectively arranged between the cabin body 100 and the handle 200 to rotationally connect the handle 200 and the cabin body 100.

[0047] The connecting assembly 300 is arranged between the cabin body 100 and the handle 200, and the connecting assembly 300 rotationally installs the handle 200 on the side surface of the cabin body 100. Therefore, when the diver uses the underwater propulsion device and needs to change the current diving direction, the handle 200 can drive the entire underwater propulsion device to rotate, and the diver does not need to rotate the entire underwater propulsion device, thereby improving the user experience of using the underwater propulsion device.

[0048] In some embodiments, the handle 200 is provided with a first placement cavity 210, and the handle 200 is provided with a first connecting hole 220 in communication with the first placement cavity 210 on the side close to the cabin body 100, and the cabin body 100 is provided with a second connecting hole 110 corresponding to the first connecting hole 220. The connecting assembly 300 comprises a connecting shaft 310 and a damping ring 320; one end of the connecting shaft 310 is inserted into the first connecting hole 220 of the handle 200, and the other end is inserted into the second connecting hole 110 of the cabin body 100, and the diameter of the shaft part of the connecting shaft 310 inserted into the second connecting hole 110 is greater than the diameter of the second connecting hole 110; and the damping ring 320 is sleeved on the connecting shaft 310 and located at the first connecting hole 220 of the handle 200.

[0049] By inserting the connecting shaft 310 into the first connecting hole 220 and the second connecting hole 110, and the diameter of the shaft part of the connecting shaft 310 inserted into the second connecting hole 110 is greater than the diameter of the second connecting hole 110, the connecting shaft 310 inserted into the shaft part of the second connecting hole 110 cannot be separated from the cabin body 100, and the damping ring 320 is sleeved on the part of the second connecting shaft 310 located at the first connecting hole 220 to limit the connecting shaft 310 from being separated from the first connecting hole 220, and the damping ring 320 can increase the friction between the connecting shaft 310 and the first connecting hole 220, so that the handle 200 cannot be easily rotated, and a certain force is needed to rotate the handle 200, so as to ensure that the diver rotates the handle 200 to a certain angle and stabilizes, so that the diver can be stable in the diving direction and easy to operate during the diving process.

[0050] Referring to Figure 3 and Figure 4Specifically, the connecting shaft 310 comprises a first connecting portion 311, a second connecting portion 312 and a third connecting portion 313; wherein the diameter of the first connecting hole 220 is larger than that of the second connecting hole 110, the first connecting portion 311 is inserted into the second connecting hole 110 and located in the cabin 100, the second connecting portion 312 is located at the second connecting hole 110, the third connecting portion 313 is inserted into the first connecting hole 220 and located in the first placing cavity 210 of the handle 200, and the damping ring 320 is sleeved on the third connecting portion 313 and located at the second connecting hole 110. Wherein the first connecting portion 311, the second connecting portion 312 and the third connecting portion 313 are in cylindrical shape, the diameter of the first connecting portion 311 is the same as that of the third connecting portion 313, the diameter of the second connecting portion 312 is smaller than that of the first connecting portion 311 and the third connecting portion 313, and the diameter of the first connecting portion 311 is larger than that of the first connecting hole 220, and the diameter of the second connecting portion 312 is smaller than that of the first connecting hole 220. By setting the second connecting portion 312 with a diameter smaller than that of the first connecting portion 311, the connecting shaft 310 can be easily rotated in the first connecting hole 220, and by setting the diameter of the first connecting portion 311 larger than that of the first connecting hole 220, the first connecting hole 220 can limit the first connecting portion 311 from being separated, so as to connect the handle 200 and the cabin 100 through the connecting shaft 310. Wherein the diameter of the third connecting portion 313 is smaller than that of the first connecting hole 220, and after the damping ring 320 is sleeved on the third connecting portion 313, the damping ring 320 abuts against the hole wall of the first connecting hole 220, so as to increase the friction between the third connecting portion 313 and the first connecting hole 220 through the damping ring 320, and then the handle 200 can be stably kept at any angle after being rotated to the angle along the connecting shaft 310, so that the diver can operate the underwater boosting device more stably.

[0051] In some embodiments, the first placing cavity 210 of the handle 200 is provided with a plurality of limiting members 230, the limiting members 230 are combined to form a limiting groove 240, and the connecting assembly 300 further comprises a fixed plate 330, which is fixedly arranged on the connecting shaft 310 and located in the limiting groove 240 of the handle 200.

[0052] The limiting groove 240 is formed by the limiting members 230, and the fixed plate 330 is arranged in the limiting groove 240, so that when the connecting shaft 310 is rotated, the fixed plate 330 is also rotated to drive the entire handle 200 to rotate, so that the handle 200 is more stably rotated.

[0053] The handle 200 comprises a second lower shell 280 and a second upper shell 290, the second lower shell 280 is provided with a plurality of first connecting columns 281, the second upper shell 290 is provided with a plurality of second connecting columns 291, the first connecting columns 281 and the second connecting columns 291 are identical in shape and size, when the second lower shell 280 covers the second upper shell 290, the first connecting columns 281 and the second connecting columns 291 are butted with each other, then the first connecting columns 281 and the second connecting columns 291 are connected by fixing glue. A plurality of limiting members 230 are arranged on the second lower shell 280 and the second upper shell 290 respectively, and the limiting grooves 240 formed by the limiting members 230 of the second lower shell 280 and the second upper shell 290 entirely enclose the fixing plate 330, then the fixing plate 330 is more stable in rotation driving the handle 200.

[0054] In some embodiments, the cabin body 100 comprises a first lower shell 120, a first upper shell 130, a power supply (not labeled in the figure) and a fixing assembly 150; the first lower shell 120 covers the first upper shell 130, the first lower shell 120 and the first upper shell 130 cover each other to form a second placement cavity 160, a propeller is arranged in the second placement cavity 160 and located at the tail end of the cabin body 100; the power supply is arranged in the second placement cavity 160; the fixing assembly 150 is sleeved on the power supply and fixes the power supply in the second placement cavity 160.

[0055] By covering the first lower shell 120 and the first upper shell 130 to form the second placement cavity 160, and sleeving the power supply on the fixing assembly 150 to fix the power supply in the second placement cavity 160 of the propeller by the fixing assembly 150, the power supply is isolated from water, thereby improving the waterproofness of the power supply.

[0056] The first lower shell 120 is provided with a through hole, and the propeller is arranged at the tail end of the cabin body 100, when water flows into the through hole of the first lower shell 120, the propeller is started to discharge the flowing water to generate a propelling force to drive the diver to swim underwater.

[0057] In some embodiments, the first lower shell 120 is provided with a fixing groove 121, and the fixing assembly 150 comprises a fixing box 151, a fixing cover 152 and a bearing frame 153; the fixing box 151 is arranged in the fixing groove 121 of the first lower shell 120 and wraps the power supply; the fixing cover 152 covers the fixing groove 121 of the first lower shell 120 and the fixing box 151; the bearing frame 153 is arranged in the fixing box 151 and bears the power supply.

[0058] The fixing groove 121 is arranged on the first lower shell 120, then the fixing box 151 is loaded with the power supply and is put into the fixing groove 121, and then the fixing cover 152 is used to cover the fixing box 151 and the fixing groove 121 to prevent water from flowing into the fixing box 151, so as to ensure the waterproof property of the power supply. The fixing box 151 is only provided with an opening on the side surface, and the fixing cover 152 is provided with an opening on the side surface close to the fixing box 151, so that the fixing box 151 is placed on the bearing frame 153, and then the fixing cover 152 is used to cover the fixing box 151 and the bearing frame 153 to completely wrap the fixing box 151, so as to increase the sealing property of the power supply in the fixing box 151, thereby improving the waterproof property of the power supply.

[0059] With reference to Figure 4 and Figure 6 In some embodiments, the underwater boosting device further comprises a control panel 400, the control panel 400 is provided with a first connecting interface (not shown in the figure), and the fixing assembly 150 further comprises a sleeve connecting column 154 and a second connecting interface (not shown in the figure), the sleeve connecting column 154 is fixedly arranged on the fixing box 151, and the second connecting interface is fixedly connected with the bearing frame 153 and is inserted into the sleeve connecting column 154 and connected with the first connecting interface.

[0060] The control panel 400 is used to control the driving power and on-off control of the propeller, the control panel 400 is connected with the power supply through the first connecting interface and the second connecting interface, so that the power supply provides electric energy to the control panel 400. The sleeve connecting column 154 is arranged on the fixing box 151, and the bearing frame 153 is provided with a plug-in column inserted into the sleeve connecting column 154, wherein the sleeve connecting column 154 is a waterproof column, the power supply is electrically connected through the plug-in column, and the second connecting interface is electrically connected with the plug-in column. Since the first connecting interface and the second connecting interface are connected, the waterproof property of the power supply is affected, so the waterproof column is arranged to wrap the plug-in column connected with the second connecting interface, so as to prevent water from flowing into the power supply through the plug-in column.

[0061] With reference to Figure 1 , Figure 4 and Figure 5 In some embodiments, the first lower shell 120 is provided with a first recess 122, the first upper shell 130 is provided with a second recess 131, and the shapes of the first recess 122 and the second recess 131 are oval. When the fixing cover 152 covers the fixing box 151, the shape of the first recess 122 on the first lower shell 120 is oval. The first lower shell 120 is provided with a through hole communicated with the second placing cavity 160, so that the oval first recess 122 is arranged to facilitate water to flow into the through hole to enter the second placing cavity 160, so that the propeller is more convenient to push the cabin body 100.

[0062] In some embodiments, the first lower shell 120 and the fixed cover 152 are provided with a plurality of railings 123 located in the first recess 122, and the plurality of railings 123 are evenly distributed in the first recess 122. By arranging the plurality of railings 123 in the first recess 122 and evenly distributing the plurality of railings 123 in the first recess 122, the water flow is guided along the railings 123 to the through hole, so as to promote the propeller to push the water flow to drive the diver to swim underwater.

[0063] In some embodiments, the two handles 200 are respectively provided with a key groove, and the two key grooves of the two handles 200 are respectively defined as a first key groove 260 and a second key groove 270. The handle 200 is provided with a speed adjusting button 261 located in the first key groove 260, and the handle 200 is provided with a propelling button 271 located in the second key groove 270.

[0064] By arranging the first key groove 260 and the second key groove 270 on the handle 200, and then arranging the speed adjusting button 261 on the first key groove 260 and the propelling button 271 in the second key groove 270, the diver only needs to slide to the first key groove 260 and the second key groove 270 when holding the handle 200, and then press the speed adjusting button 261 and the propelling button 271 to adjust the speed and mode of the underwater propulsion device, so that the diver can easily adjust the speed and mode.

[0065] In some embodiments, the first upper shell 130 is provided with a camera fixing frame 124, and the camera fixing frame 124 is provided with a camera connecting interface 125.

[0066] The camera connecting interface 125 is connected to the second connecting interface to provide power to the camera connected to the camera connecting interface 125 through the power supply. The camera can be placed on the camera fixing frame 124, and the diver can take underwater scenes while diving underwater through the camera, thereby improving the user experience.

[0067] The following will be described in detail with reference to Figures 1 to 6 The underwater propulsion device according to the embodiments of the present application is described in detail with reference to a specific embodiment. It should be understood that the following description is only exemplary and is not a specific limitation of the application.

[0068] The first placing cavity 210 is arranged on the handle 200, the first connecting part 311 is inserted into the second connecting hole 110 and located in the cabin 100, the second connecting part 312 is located at the second connecting hole 110, the third connecting part 313 is inserted into the first connecting hole 220 and located in the first placing cavity 210 of the handle 200, and the damping ring 320 is arranged on the third connecting part 313 and located at the second connecting hole 110. The diameter of the first connecting part 311 is greater than that of the second connecting part 312, so that the connecting shaft 310 can be easily rotated in the first connecting hole 220, and the diameter of the first connecting part 311 is greater than that of the first connecting hole 220, so that the first connecting hole 220 can limit the first connecting part 311 from being separated, thereby connecting the handle 200 and the cabin 100 through the connecting shaft 310. The diving personnel can rotate the handle 200 to any angle through the damping ring 320 arranged on the part of the third connecting part 313 located at the second connecting hole 110, and the handle 200 can be fixed at the angle, so that the diving direction of the underwater boosting device can be changed and the stability of the changed direction can be ensured. The fixing plate 330 is arranged in the limiting groove 240, so that the connecting shaft 310 drives the fixing plate 330 to rotate and then drives the handle 200 to rotate, so that the handle 200 is more stable during rotation. After the power supply is placed in the fixing box 151, the fixing box 151 is placed on the bearing frame 153, and then the fixing cover 152 is covered on the fixing box 151 and matched with the bearing frame 153 to prevent water from flowing into the fixing box 151. After the fixing cover 152 is covered, the first recess 122 is formed on the lower shell, and the railing 123 is arranged on the first recess 122 to realize the drainage effect, so that the water flow is guided to the booster to be boosted, and the boosting of the underwater boosting device is more simple. The first button groove 260 and the second button groove 270 are arranged on the handle 200, the speed adjusting button 261 is arranged on the first button groove 260, and the propelling button 271 is arranged in the second button groove 270, so that the diver only needs to slide to the first button groove 260 and the second button groove 270 when holding the handle 200, and then press the speed adjusting button 261 and the propelling button 271 to adjust the speed and mode of the underwater boosting device, so that the diver can easily adjust the speed and mode.

[0069] The above describes the embodiments of the present application in detail in combination with the drawings, but the present application is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the purpose of the present application. In addition, the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

Claims

1. An underwater boost device, characterized by, The utility model relates to an underwater boosting device, including: a cabin, which is provided with a propeller; two handles, which are symmetrically arranged on the side of the cabin; two sets of connecting assemblies, which are arranged between the cabin and the handles to rotatably connect the handles and the cabin; the handle is provided with a first placing cavity, and a first connecting hole is formed in the side of the handle close to the cabin and communicates with the first placing cavity; a second connecting hole is formed in the cabin and corresponds to the first connecting hole; the connecting assembly comprises: a connecting shaft, one end of which is inserted into the first connecting hole of the handle, and the other end is inserted into the second connecting hole of the cabin; the diameter of the shaft part of the connecting shaft inserted into the second connecting hole is greater than the diameter of the second connecting hole; a damping ring, which is sleeved on the connecting shaft and located at the first connecting hole of the handle, so that the diver can fix the handle at any angle after rotating the handle; wherein the first placing cavity of the handle is provided with a plurality of limiting members, which form a limiting groove in combination; the connecting assembly further comprises: a fixing plate, which is fixedly arranged on the connecting shaft and located in the limiting groove of the handle; the handle comprises a second lower shell and a second upper shell; a plurality of first connecting columns are arranged on the second lower shell; a plurality of second connecting columns are arranged on the second upper shell; the first connecting columns and the second connecting columns are identical in shape and size; when the second lower shell covers the second upper shell, the first connecting columns and the second connecting columns are in abutment with each other, and the first connecting columns and the second connecting columns are connected by fixing glue; a plurality of limiting members are arranged on the second lower shell and the second upper shell, and the limiting groove formed by the limiting members of the second lower shell and the second upper shell entirely surrounds the fixing plate, so that the fixing plate is more stable when rotating the handle; the connecting shaft comprises a first connecting part, a second connecting part and a third connecting part; the diameter of the first connecting hole is greater than that of the second connecting hole; the first connecting part is inserted into the second connecting hole and located in the cabin; the second connecting part is located at the second connecting hole; the third connecting part is inserted into the first connecting hole and located in the first placing cavity of the handle; the damping ring is sleeved on the third connecting part and located at the second connecting hole.

2. The underwater boost device of claim 1, wherein, the cabin comprises: a first upper shell; a first lower shell, which covers the first upper shell; the first lower shell and the first upper shell cover each other to form a second placing cavity; the propeller is arranged in the second placing cavity and located at the tail end of the cabin; a power supply, which is arranged in the second placing cavity; a fixing assembly, which is sleeved on the power supply and fixes the power supply in the second placing cavity.

3. The underwater boost device of claim 2, wherein, the first lower shell is provided with a fixing groove; the fixing assembly comprises: a fixing box, which is arranged in the fixing groove of the first lower shell and wraps the power supply; a fixing cover, which covers the fixing groove and the fixing box of the first lower shell; a bearing frame, which is arranged in the fixing box and bears the power supply.

4. The underwater boost device of claim 3, wherein, the underwater boosting device further comprises: a control board, which is provided with a first connecting interface; The fixing assembly further comprises: A sleeve column fixedly arranged on the fixing box; A second connecting interface fixedly connected with the bearing frame, inserted into the sleeve column and connected with the first connecting interface.

5. The underwater boost device according to any one of claims 2 to 4, characterized in that, A first recess is arranged on the first lower shell, and a second recess is arranged on the first upper shell. The first recess and the second recess are in an elliptical shape.

6. The underwater boost device of claim 5, wherein, A plurality of railings are arranged on the first lower shell and the fixing cover and located in the first recess. The railings are arranged at equal intervals in the first recess.

7. The underwater boost device according to any one of claims 2 to 4, characterized in that, Key grooves are arranged on the two handles respectively. The two key grooves are defined as a first key groove and a second key groove respectively. A speed adjusting button is arranged on the handle and located in the first key groove. A pushing button is arranged on the handle and located in the second key groove.

8. The underwater boost device of claim 5, wherein, A camera fixing frame is arranged on the first upper shell. A camera connecting interface is arranged on the camera fixing frame.

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