CN211196565U

CN211196565U - Wearable dive advancing device

Info

Publication number: CN211196565U
Application number: CN201921953258.8U
Authority: CN
Inventors: 吴鸿斌
Original assignee: Shenzhen Jiangzhihui Technology Co ltd
Current assignee: Shenzhen Jiangzhihui Technology Co ltd
Priority date: 2019-11-13
Filing date: 2019-11-13
Publication date: 2020-08-07
Anticipated expiration: 2029-11-13

Abstract

The utility model provides a wearable diving propulsion device, which comprises two propeller monomers and a battery main control box; the single propeller comprises a propeller casing, a motor, a propeller and a motor control unit; the propeller casing comprises a flow guide cover, a base and a plurality of anti-prerotation flow guide blades; the water inlet is formed by enclosing two adjacent anti-prerotation guide vanes, the base and the inner wall of the air guide sleeve; part of the propeller is positioned in the water outlet; the motor control unit is connected with the battery main control box. The utility model discloses make rivers just have a rotary motion opposite for the direction of rotation of screw before reacing the screw, rivers can directly obtain the speed that the axial flows in the export of screw behind the screw to can cancel the guide vane behind the screw, and then reach the purpose that the power loss is reduced and efficiency is improved.

Description

Wearable dive advancing device

Technical Field

The utility model belongs to the technical field of wearable equipment, especially, relate to a wearable dive advancing device.

Background

The underwater diving propulsion device can improve the range and speed of people moving underwater, and can be used for various scenes such as underwater entertainment, commerce, military and the like. The most commercially available at present are the DPV (diver propulsion vehicles) style propellers. The propeller is generally in a torpedo shape and operates in front of a person, the control handle is held by both hands of the user, and the propeller pulls the human body to move forwards. The disadvantage of such a propeller is that because the user needs to hold the propeller with both hands, the user has no way to free up the hands to do other things, such as taking a picture or other underwater work, which greatly limits the freedom of underwater activities. Moreover, the propeller runs in front of the human body, and turbulent flow of stirring can become resistance to forward movement of the human body, so that the propelling efficiency is reduced; in addition, because the propeller structure makes its work in not too high rotational speed range (too high stirring rivers make effective power descend on the contrary), need obtain sufficient thrust, the size of propeller also needs enough big correspondingly, therefore the size of swimming propeller is difficult to be dwindled, and also is difficult to accomplish to the safety protection of propeller.

In order to solve the above problems, chinese patent 201721397138.5 discloses a wearable swimming propulsion device, which is a wearable diving propeller, comprising a pair of propellers and a control belt, wherein the propellers include a diversion cover, a driving motor and a water inlet are installed on the surface of the diversion cover facing the head of the human body, a propeller capable of rotating along with the output shaft is connected to the output shaft of the driving motor, a water jet is arranged on the surface of the diversion cover facing the feet of the human body, and a controller and a power supply are arranged on the control belt. Wearable swimming propulsion devices still suffer from the following problems: the driving motor installed on one face, facing the head of a human body, in the air guide sleeve of the propeller is fixed on the air guide sleeve through the radial non-twisted support frame, and water flow bypassing the motor and passing through the support frame flows to the propeller along the axial direction of the transmission shaft. Thus, the water flow passing through the propeller, in addition to moving backwards, has a radial movement around the centre of the output shaft after passing through the rotating propeller, which is detrimental, so that the propeller has a tipping moment and the rotating movement also consumes a part of the power of the engine; therefore, the wearable swimming propulsion device must add an additional guide vane in front of the water jet behind the propeller to redirect the radial motion of the water flow and finally guide the water flow to the axial direction, and the added guide vane increases the complexity of the structure, increases the on-way resistance of the water flow, and reduces the efficiency of the propeller.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a make rivers just have a rotation motion opposite for the direction of rotation of screw and reduce power loss's wearable dive advancing device before reaching the screw.

The utility model provides a wearable diving propulsion device, which comprises two symmetrically arranged propeller single bodies and a battery main control box connected with the two propeller single bodies; the single propeller comprises a propeller casing, a motor, a propeller and a motor control unit, wherein the propeller and the motor control unit are connected with the motor; the propeller casing comprises a flow guide cover, a base and a plurality of anti-pre-rotation flow guide blades, wherein the base is used for fixing and fixing the motor and is positioned in the flow guide cover, and the anti-pre-rotation flow guide blades are positioned in the flow guide cover and are connected with the flow guide cover and the base; the water inlet is formed by enclosing two adjacent anti-prerotation guide vanes, the base and the inner wall of the air guide sleeve; part of the propeller is positioned in the water outlet; the motor control unit is connected with the battery main control box.

Preferably, the base comprises a circular shell and a bottom surface connected to one end of the shell, and the bottom surface is far away from the water inlet; one end of the reverse pre-rotation guide vane is connected with the outer wall of the shell, and the other end of the reverse pre-rotation guide vane is connected with the inner wall of the guide cover; the anti-pre-rotation guide vanes and the water inlet face the head of a diver.

Preferably, the plurality of anti-pre-rotation guide vanes are arranged equidistantly between the outer wall of the casing and the inner wall of the guide cover.

Preferably, the motor is located inside the air guide sleeve and comprises a stator fixedly connected with the bottom surface and a rotor connected with the propeller.

Preferably, the motor further comprises a fixing member, and the fixing member is sequentially connected with the stator, the bottom surface and the motor control unit.

Preferably, the propeller comprises a propeller body connected to the rotor and a plurality of propeller blades connected around the propeller body, the plurality of propeller blades being located within the outlet port; the propeller and the water outlet face the feet of the diver. Preferably, the anti-prerotation guide vane, the base and the guide cover are integrally formed.

Preferably, the propeller unit further comprises a thigh strap for tying on the thigh of the diver, and two second speed release devices connected with the thigh strap, and the air guide sleeve is fixed on the thigh strap.

Preferably, the battery main control box comprises a battery box, and a battery and a main control board are arranged in the battery box.

Preferably, the battery main control box further comprises a waist belt tied to the waist, at least one adjustable waist clip connected with the waist belt and a first speed release, and the battery box is fixed on the waist belt.

The utility model discloses two adjacent anti-rotation guide vane in advance, be the water inlet between base and the kuppe, the motor is located the inside of kuppe and is connected with the base, anti-rotation guide vane in advance has the function of anti-rotation direction rivers that lead in advance, make rivers just have a rotatory motion opposite for the direction of rotation of screw before reacing the screw, rivers are behind the screw, can directly obtain the speed that the axial flows in the export of screw, thereby can cancel the guide vane behind the screw, and then reach the purpose that the power loss is reduced and efficiency is improved.

Drawings

Fig. 1 is a schematic view of the wearable diving propulsion device of the present invention in a diving state;

FIG. 2 is a schematic diagram of a battery control box of the wearable submersible propulsion device of FIG. 1;

FIG. 3 is a schematic diagram of the construction of two propulsion units of the wearable submersible propulsion device of FIG. 1;

FIG. 4 is a partial schematic view of the impeller cell of FIG. 3;

fig. 5 is a schematic structural view of a pod of the propeller unit shown in fig. 3.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

The utility model relates to a wearable diving propulsion device, as shown in fig. 1, which comprises two propeller units 100 fixed on each thigh and a battery main control box 200 fixed on the waist and connected with the two propeller units 100, wherein the two propeller units 100 are symmetrically arranged, one propeller unit 100 is bound on the left thigh of a diving person, and the other propeller unit 100 is bound on the right thigh of the diving person; the battery main control box 200 simultaneously provides power to the two thruster units 100 to give the diver power to dive.

As shown in fig. 2, the battery main control box 200 includes a belt 21 bound to the waist, at least one adjustable waist clip 22 and a first speed release 23 connected to the belt 21, a battery box 24 fixed on the belt 21, a waterproof socket 25 and a speed control knob 26 fixed on the battery box 24, wherein a battery and a main control board are arranged in the battery box 24, the battery and the main control board are packaged in the battery box 24, the battery box 24 is a waterproof box, the battery is a lithium-ion battery, and has high power and energy density and light weight.

As shown in fig. 3 to 5, the thruster unit 100 includes a thigh belt 11 tied on the thigh, two second-speed release 12 connected to the thigh belt 11, a thruster case fixed to the thigh belt 11, a motor 14, a propeller 15 connected to the motor 14, and a motor control unit 17; wherein the motor control unit 17 is connected to the battery box 24 via a power supply line 300.

The propeller casing comprises a circular air guide sleeve 13, a base 18 and a plurality of anti-pre-rotation guide vanes 19, wherein the base 18 is used for fixing the motor 14 and is positioned inside the air guide sleeve 13, and the anti-pre-rotation guide vanes 19 are positioned inside the air guide sleeve 13 and are connected with the air guide sleeve 13 and the base 18; the air guide sleeve 13 is provided with a water inlet 133 at one end and a water outlet 131 at the other end, the water inlet 133 is formed by surrounding two adjacent anti-prerotation guide vanes 19, the outer wall of the base 18 and the inner wall of the air guide sleeve 13, and the water inlet 133 faces the head of a diver; part of the propeller 15 is located in the water outlet 131, the water outlet 131 facing the feet of the diver.

The motor 14 is preferably a brushless dc motor, and the motor 14 is located inside the nacelle 13 and includes a stator (not shown) and a rotor (not shown) connected to the motor control unit 17, wherein one end of the rotor is connected to the stator through a bearing (not shown), and the other end of the rotor is fixedly connected to the propeller 15, and the rotor can rotate around the stator to drive the motor 14 to move through the motor control unit 17.

The base 18 comprises a circular shell 181 and a bottom surface 182 connected with one end of the shell 181, the other end of the shell 181 is open and faces the water inlet 133 of the air guide sleeve 13, the plurality of anti-prerotation guide vanes 19 are arranged at equal intervals between the outer wall of the shell 181 and the inner wall of the air guide sleeve 13, and the bottom surface 182 is far away from the water inlet 133; the stator of the motor 14 is fixed on the bottom surface 182, and the stator of the motor 14 is connected with the bottom surface 182 of the base 134 through a fixing member (not shown), and the fixing member is connected with the motor control unit 17, that is, the fixing member is sequentially connected with the stator of the motor 14, the bottom surface 182 of the base 18 and the motor control unit 17, and the motor control unit 17 is located outside the air guide sleeve 13 and on one side close to the head of the human body; one end of the reverse pre-rotation guide vane 19 is connected to the outer wall of the circular shell 181, and the other end of the reverse pre-rotation guide vane 19 is connected to the inner wall of the guide cover 13.

In this embodiment, the fixing member is a nut.

In the embodiment, the anti-prerotation guide vane 19, the base 18 and the guide cover 13 are integrally formed; in other embodiments, the anti-pre-rotation guide vanes 19, the base 18 and the nacelle 13 are manufactured separately, and both the anti-pre-rotation guide vanes 19 and the base 18 are fixedly connected within the nacelle 13.

In this embodiment, the anti-pre-rotation guide vanes 19 have 6 anti-pre-rotation guide vanes disposed equidistantly, that is, the embodiment has 6 water inlets 133, and the 6 anti-pre-rotation guide vanes 19 are disposed equidistantly between the outer wall of the housing 181 and the inner wall of the guide cover 13. The propeller 15 includes a propeller body 151 connected to a rotor of the motor 14 and a plurality of propeller blades 152 connected around the propeller body 151, the plurality of propeller blades 152 being located within the water outlet 131. In the present embodiment, the propeller blades 152 are also provided with 6 arranged at equal distances.

Because the water inlet 133 is located between two adjacent anti-prerotation guide vanes 19, the base 18 and the air guide sleeve 13, the stator of the motor 14 is directly connected with the base 18, the anti-prerotation guide vanes have the function of guiding water flow in an anti-prerotation mode, the water flow passes through the water inlet 133 to the water outlet 131, so that the water flow has a rotary motion opposite to the rotary direction of the propeller 15 before reaching the propeller 15 located at the water outlet 131, and after passing through the propeller 15, the water flow can directly obtain the axial flow speed at the outlet of the propeller 15, so that a water flow guide vane mechanism behind the propeller 15 can be cancelled, and the purposes of reducing power loss and improving efficiency are achieved.

The anti-prerotation guide vanes 19 and the propeller blades 152 of the propeller 15 are designed according to the wing theory, and when there is a speed difference between the fluid medium on the blade surface and the fluid medium on the blade back of the same blade, the fluid generates a propelling force on the blade, a first included angle α (shown in fig. 5) is formed between the tangential direction of the arc line of the trailing edge outlet of the anti-prerotation guide vanes 19 and the central axis direction of the guide cover 13, in the embodiment, the first included angle α is between 18.5 ° and 40.7 °, and is the best angle for the current rotating speed and flow rate of the propeller casing.

The propeller 15 driven by the motor 14 generates a reaction force to the fluid, so that the motor 14 applies work to the fluid flowing through the blades to accelerate the water flow to move backward, thereby enabling the propulsion unit 100 to obtain a forward driving force.

The utility model discloses two adjacent anti-rotation guide vane in advance, be the water inlet between base and the kuppe, the motor is located the inside of kuppe and is connected with the base, anti-rotation guide vane in advance has the function of anti-rotation direction rivers that lead in advance, make rivers just have a rotatory motion opposite for the direction of rotation of screw before reacing the screw, rivers are behind the screw, can directly obtain the speed that the axial flows in the export of screw, thereby can cancel the anti-guide vane behind the screw, and then reach the purpose that the power loss is reduced and efficiency is improved.

The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above description in any form, and although the present invention has been disclosed with reference to the preferred embodiment, it is not limited to the present invention, and any skilled person in the art can make modifications or changes equivalent to the equivalent embodiment of the above embodiments without departing from the scope of the present invention.

Claims

1. A wearable diving propulsion device is characterized by comprising two symmetrically arranged propeller single bodies and a battery main control box connected with the two propeller single bodies; the single propeller comprises a propeller casing, a motor, a propeller and a motor control unit, wherein the propeller and the motor control unit are connected with the motor; the propeller casing comprises a flow guide cover, a base and a plurality of anti-pre-rotation flow guide blades, wherein the base is used for fixing the motor and is positioned in the flow guide cover, and the plurality of anti-pre-rotation flow guide blades are positioned in the flow guide cover and are connected with the flow guide cover and the base; the water inlet is formed by enclosing two adjacent anti-prerotation guide vanes, the base and the inner wall of the air guide sleeve; part of the propeller is positioned in the water outlet; the motor control unit is connected with the battery main control box.

2. A wearable submersible propulsion device according to claim 1 wherein the base comprises a circular ring shaped housing and a bottom surface connected to one end of the housing, the bottom surface being disposed away from the water inlet; one end of the reverse pre-rotation guide vane is connected with the outer wall of the shell, and the other end of the reverse pre-rotation guide vane is connected with the inner wall of the guide cover; the anti-pre-rotation guide vanes and the water inlet face the head of a diver.

3. A wearable submersible propulsion device according to claim 2 wherein a plurality of anti-pre-swirl guide vanes are provided equidistant between the outer wall of the housing and the inner wall of the pod.

4. A wearable submersible propulsion device according to claim 2, characterized in that the motor is located inside the pod and comprises a stator fixedly connected to the bottom surface and a rotor connected to the propeller.

5. A wearable submersible propulsion device according to claim 4, further comprising a fixture connecting the stator, the bottom surface and the motor control unit in sequence.

6. A wearable submersible propulsion device according to claim 4 wherein the propeller comprises a propeller body connected with the rotor and a plurality of propeller blades connected with the propeller body circumference, the plurality of propeller blades being located within the outlet; the propeller and the water outlet face the feet of the diver.

7. A wearable submersible propulsion device according to claim 1 wherein the anti-pre-rotation guide vanes, base and pod are integrally formed.

8. A wearable submersible propulsion device according to claim 1, characterized in that the propulsion unit further comprises a thigh strap to be strapped to the diver's thigh, and two second speed releases connected to the thigh strap, the pod being fixed to the thigh strap.

9. A wearable submersible propulsion device according to claim 1 wherein the battery master control box comprises a battery box with a battery and a master control board disposed therein.

10. A wearable submersible propulsion device according to claim 9 wherein the battery master control case further comprises a waist strap strapped to the waist, at least one adjustable waist clip connected to the waist strap, and a first speed release, the battery case being secured to the waist strap.