CN210212739U

CN210212739U - Underwater propeller

Info

Publication number: CN210212739U
Application number: CN201921146171.XU
Authority: CN
Inventors: Shidong Sai; 赛世栋; Kui Gu; 顾奎; Ying Xiong; 熊鹰; Hongbo Wang; 王洪博; Chengdong Xu; 徐成栋
Original assignee: Saikui Eagle Intelligent Equipment Weihai Co ltd
Current assignee: Saikui Eagle Intelligent Equipment Weihai Co ltd
Priority date: 2019-07-19
Filing date: 2019-07-19
Publication date: 2020-03-31
Anticipated expiration: 2029-07-19

Abstract

The utility model provides an underwater propeller, belonging to the field of underwater power propulsion equipment, which comprises a shell, a driving component, a driving shaft, a first impeller and a second impeller; a fluid channel and an accommodating cavity are arranged in the shell, and the fluid channel comprises a water inlet and a water outlet; a pressurizing area is arranged in the fluid channel, and the inner diameter of the pressurizing area is gradually reduced along the drainage direction; the driving shaft is connected with the driving assembly; the driving assembly is arranged in the accommodating cavity; the first impeller is fixedly connected to the drive shaft, the second impeller is rotatably connected to the drive shaft, the first impeller is located at an upstream position of the second impeller, and the second impeller is located inside the supercharging region. The driving assembly drives the first impeller to rotate through the driving shaft, and the first impeller enables water flow to be pushed into the pressurizing area; the second impeller positioned in the supercharging area accelerates water flow and sprays the water flow to the outside of the water outlet, so that the propelling force is increased, the propelling power of the underwater propeller is improved, and the driving effect is improved.

Description

Underwater propeller

Technical Field

The utility model relates to a power propulsion equipment field under water, concretely relates to propeller under water.

Background

The underwater propeller is a multipurpose underwater power propulsion device, and can be matched and arranged at the bottom of equipment such as a surfboard or a small ship body to provide propulsion power. At present, underwater thrusters used with surfboards, small hulls and other devices usually include: the water body is pushed to flow by the propeller to generate power, and the water equipment such as a surfboard or a small ship body is pushed to move. However, the propeller type underwater propeller has a limited propulsive power and a poor driving effect.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an underwater propulsor can make underwater propulsor's propulsion power obtain promoting, improves the drive effect.

Based on the above-mentioned purpose, the utility model provides an underwater propulsor, include:

the impeller comprises a shell, a driving assembly, a driving shaft, a first impeller and a second impeller;

a fluid channel and an accommodating cavity are arranged in the shell, and the fluid channel comprises a water inlet and a water outlet; a pressurizing area is arranged in the fluid channel and close to the water outlet, and the inner diameter of the pressurizing area is gradually reduced along the water discharging direction;

the driving shaft is arranged in the shell and is connected with the driving assembly;

the driving assembly is arranged in the accommodating cavity and used for driving the driving shaft to rotate;

the first impeller is fixedly connected to the drive shaft, the second impeller is rotatably connected to the drive shaft, and the first impeller is located at an upstream position of the second impeller, which is located inside the pumping region.

Further, the first impeller includes a first hub and a plurality of spiral first blades connected to a peripheral side of the first hub; the first hub is tapered, and the diameter of the first hub increases in the direction of water discharge.

Further, the second impeller includes the second impeller hub and connects a plurality of second blades of week side at the second impeller hub, the second impeller hub cup joints through the bearing on the drive shaft, the second impeller hub is the toper, the diameter of second impeller hub is degressive along the drainage direction.

Furthermore, the second blade includes a first bending portion and a second bending portion which are connected in sequence according to the drainage direction, and a certain angle is arranged between the first bending portion and the second bending portion.

Further, the water inlet is arranged at the bottom of the shell, and the water outlet is arranged at one end of the shell in the axial direction.

Furthermore, the driving assembly comprises a controller, a motor, a speed reducer and a sealing shell; the controller is electrically connected with the motor, the motor is connected with the input end of the speed reducer, the output end of the speed reducer is connected with the driving shaft, and the sealing shell is located at the output end of the speed reducer and fixed in the shell.

Furthermore, one end of the sealed shell, which is close to the water outlet, is a flow guide part, the flow guide part is in a cone cylinder shape, and the diameter of the flow guide part is gradually reduced along the water discharging direction.

Further, a sealing element is arranged between the sealing shell and the driving shaft, and a sealing element is arranged between the output end of the speed reducer and the driving shaft.

Further, the underwater propeller further comprises a first charging assembly, the first charging assembly comprises a first connecting body, one end of the first connecting body is connected with a cable, and the other end of the first connecting body is electrically connected with the controller in a plug-matched jack mode so as to supply power to the controller and the motor.

Further, the underwater propeller further comprises a charging power supply, and the charging power supply is electrically connected with the controller in a mode that a plug is matched with a jack so as to supply power to the controller and the motor.

Further, the underwater propeller further comprises a second charging assembly, the second charging assembly comprises a second connector, one end of the second connector is connected with a cable, and the other end of the second connector is electrically connected with the charging power supply in a plug-matched jack mode so as to supply power to the charging power supply.

Furthermore, the underwater propeller further comprises an illumination assembly, the illumination assembly comprises a third connector and an illumination lamp arranged inside the third connector, and the third connector is electrically connected with one end, far away from the controller, of the charging power supply in a plug matching jack mode so as to supply power to the illumination lamp.

Further, the shell is provided with a slide way extending along the axial direction, and the slide way is used for connecting external equipment.

Adopt above-mentioned technical scheme, the utility model provides an underwater propulsor's technological effect has:

because the position close to the water outlet in the fluid channel in the shell is provided with the pressurizing area, the inner diameter of the pressurizing area is gradually reduced along the water discharging direction; the second impeller is positioned in the supercharging region, the first impeller is positioned at the upstream position of the second impeller, when the driving assembly drives the first impeller to rotate through the driving shaft, the first impeller enables water flow to be pushed into the supercharging region, and the inner diameter of the supercharging region is gradually reduced along the drainage direction; the second impeller positioned in the supercharging area accelerates water flow and sprays the water flow to the outside of the water outlet, so that the propelling force is increased, the propelling power of the underwater propeller is improved, and the driving effect is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a first schematic structural diagram of an underwater propeller provided in an embodiment of the present invention;

FIG. 2 is an external view of the underwater propulsion unit shown in FIG. 1;

fig. 3 is a schematic structural diagram of a first impeller provided in an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a second impeller provided in an embodiment of the present invention;

fig. 5 is a schematic view of a second structure of an underwater propeller according to an embodiment of the present invention;

fig. 6 is a third schematic structural diagram of the underwater propeller provided by the embodiment of the present invention.

Reference numerals: 100-shell, 110-fluid channel, 111-water inlet, 112-water outlet, 113-pressurizing area, 120-accommodating cavity, 130-slideway, 200-driving component, 210-controller, 220-motor, 230-speed reducer, 240-sealing shell, 241-guide part, 250-sealing element, 300-driving shaft, 400-first impeller and 410-first hub; 420-a first blade, 500-a second impeller, 510-a second hub, 520-a second blade, 521-a first bending part, 522-a second bending part, 600-a first charging assembly, 610-a first connecting body, 700-a cable, 800-a charging power supply, 900-a second charging assembly, 910-a second connecting body, 920-a lighting assembly, 921-a third connecting body, 922-a lighting lamp.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1 and fig. 2, the utility model provides an underwater propeller, include: a housing 100, a drive assembly 200, a drive shaft 300, a first impeller 400, and a second impeller 500.

The housing 100 is cylindrical, the front end (upstream position) and the rear end (downstream position) of the housing 100 are both conical, and the housing 100 is internally provided with a fluid passage 110 and a containing cavity 120; the fluid passage 110 is used for passing water, and the fluid passage 110 includes a water inlet 111 and a water outlet 112; preferably, the water inlet 111 is provided at the bottom of the housing 100, and the water outlet 112 is provided at one end of the housing 100 in the axial direction;

a pressurizing area 113 is arranged in the fluid channel 110 and close to the water outlet 112, the inner diameter of the pressurizing area 113 decreases progressively along the water discharging direction, and the pressurizing effect on water flow can be achieved due to the decreasing inner diameter of the pressurizing area 113, so that the flow speed is improved;

the driving shaft 300 is disposed inside the housing 100 and connected with the driving assembly 200;

the driving assembly 200 is disposed in the accommodating chamber 120 and is used for driving the driving shaft 300 to rotate;

the first impeller 400 is fixedly connected to the driving shaft 300 and can rotate synchronously with the driving shaft 300, and the second impeller 500 is rotatably connected to the driving shaft 300 and has the function of rectifying the water flow discharged by the first impeller 400; also, the first impeller 400 is located at an upstream position of the second impeller 500, and the second impeller 500 is located inside the booster zone 113.

In the underwater propeller of the present application, since the pressurizing zone 113 is provided in the fluid passage 110 in the casing 100 at a position close to the drain port 112, the inner diameter of the pressurizing zone 113 decreases progressively in the drainage direction; the second impeller 500 is located inside the pumping region 113, the first impeller 400 is located at the upstream position of the second impeller 500, when the driving assembly 200 drives the first impeller 400 to rotate through the driving shaft 300, the first impeller 400 pushes water flow into the pumping region 113, and the inner diameter of the pumping region 113 decreases progressively along the water discharging direction; the second impeller 500 located in the booster zone 113 accelerates the water flow and sprays it to the outside of the drain port 112, thereby increasing the propulsive force, improving the propulsive force of the underwater propeller, improving the driving effect, and being separately installed, realizing miniaturization and modularization.

In a preferred embodiment of the present application, referring to fig. 3, the first impeller 400 includes a first hub 410 and a plurality of spiral-shaped first blades 420 connected to a circumferential side of the first hub 410; the first hub 410 is tapered, and the diameter of the first hub 410 increases in the direction of water discharge.

In this embodiment, since the diameter of the first hub 410 increases in the drainage direction, the resistance to the water flow during traveling is effectively reduced; the first blades 420 are spirally formed, and the plurality of first blades 420 perform work on the fluid to accelerate and spray the water backward, so that the fluid passing through the first impeller 400 has a harmful movement of rotating with respect to the axis of the driving shaft 300 in addition to the backward movement, in order to eliminate the above-mentioned harmful movement of rotating. In the present embodiment, the second impeller 500 is disposed downstream of the first impeller 400 to perform a flow rectification function, so that the rotational motion of the fluid is entirely converted into a backward motion, thereby increasing the driving force of the water flow.

In a preferred embodiment of the present application, referring to fig. 4, the second impeller 500 includes a second hub 510 and a plurality of second blades 520 connected to a circumferential side of the second hub 510, the second hub 510 is coupled to the drive shaft 300 through a bearing, the second hub 510 is tapered, and a diameter of the second hub 510 decreases in a water discharge direction.

In this embodiment, since the second hub 510 is tapered, the diameter of the second hub 510 decreases gradually along the drainage direction, and during assembly, the diameter of the abutting end of the first hub 410 and the second hub 510 is required to be matched, so that the resistance to water flow can be effectively reduced during traveling.

Preferably, the second blade 520 includes a first bent portion 521 and a second bent portion 522 sequentially connected in a drainage direction, and a certain angle is provided between the first bent portion 521 and the second bent portion 522. The length of the second bent portion 522 is greater than that of the first bent portion 521, the second bent portion 522 extends along the axial direction of the second hub 510, and the first bent portion 521 and the second bent portion 522 are used in combination, so that the flow direction of the fluid can be adjusted, the rotational motion of the fluid is completely converted into backward motion, and the driving force of the water flow is increased; and because the diameter of the supercharging region 113 where the second impeller 500 is located decreases progressively along the water flow direction, the water flow is pressurized and rectified under the combined action of the second impeller 500 and the supercharging region 113, and then is ejected through the water outlet 112, so that the driving force of the propeller is greatly improved.

In the preferred embodiment of the present application, the driving assembly 200 includes a controller 210, a motor 220, a reducer 230, and a sealed housing 240; the controller 210 is electrically connected to the motor 220 for controlling the opening, closing and power output of the motor 220, the motor 220 is connected to the input end of the reducer 230, the output end of the reducer 230 is connected to the driving shaft 300, and the sealing housing 240 is located at the output end of the reducer 230 and fixed in the housing 100. Multiple seals (not shown) are required between the sealing housing 240 and the inner wall of the casing 100 to prevent water from entering the accommodating chamber 120; the speed reducer 230 is a planetary gear type speed reducer 230 for adjusting the rotation speed of the driving shaft 300, the motor 220 is connected to the input end of the speed reducer 230 through a coupling, and the end of the driving shaft 300 passes through the sealed housing 240 and extends into the speed reducer to be connected to the output end of the speed reducer 230.

Preferably, referring to fig. 1, one end of the sealing housing 240 close to the drain opening 112 is a flow guide portion 241, the flow guide portion 241 is in a conical cylinder shape, and the diameter of the flow guide portion 241 decreases in the drainage direction. In the application process, since a part of the sealing housing 240 is located at the position of the water inlet 111, resistance is generated to the water flow, and in this embodiment, the flow guide portion 241 is set to be a cone shape, so that the water flow can be introduced to the axial direction of the driving shaft 300 to play a role of flow guiding.

Preferably, a sealing member 250 is provided between the sealing housing 240 and the driving shaft 300, and at the same time, a sealing member 250 is provided between the output end of the speed reducer 230 and the driving shaft 300. The sealing element 250 may be an oil seal or a water seal, or a combination of the oil seal and the water seal. For example, in the present embodiment, an oil seal and a water seal are provided between the seal housing 240 and the drive shaft 300, respectively, wherein the water seal is provided at a position near the rear side. An oil seal is provided between the output end of the speed reducer 230 and the output shaft. By using the sealing element 250, the sealing performance of the motor 220, the speed reducer 230, and the housing chamber 120 can be ensured.

The underwater propulsion device provided by the present application can supply power to the control and motor 220 in various ways, and the following description is specifically referred to.

First charging mode

In a preferred embodiment of the present application, the underwater vehicle further includes a first charging assembly 600, the first charging assembly 600 includes a first connecting body 610, one end of the first connecting body 610 is connected with a cable 700, and the other end of the first connecting body 610 is electrically connected to the controller 210 in the form of a plug-fit jack, so as to supply power to the controller 210 and the motor 220. For example, the plug may be provided on the controller 210 or the first connecting body 610, and correspondingly, the jack may be provided on the controller 210 or the first connecting body 610. The cable 700 functions to connect an external power source.

The first coupling body 610 is provided as a tapered body having a smaller diameter at a front end (upstream position) than at a rear end (downstream position) thereof, and reduces resistance to water flow while traveling.

In addition, the first connecting body 610 may be connected to the housing 100 in an insertion manner, and a sealing ring is required to be disposed between the first connecting body 610 and the housing 100 for sealing.

Second charging mode

In a preferred embodiment of the present application, referring to fig. 5, the underwater propulsion device further comprises a charging power supply 800, and an electrical connection in the form of a plug-fit jack is adopted between the charging power supply 800 and the controller 210 to supply power to the controller 210 and the motor 220. Preferably, the charging power supply 800 has a waterproof case, and the waterproof case is provided in a cylindrical shape, and the charging power supply 800 functions to supply power to the controller 210 and the motor 220.

The waterproof housing of the charging power supply 800 may be connected to the casing 100 in an embedded manner, and a sealing ring is required to be disposed between the waterproof housing and the casing 100 for sealing.

With continued reference to fig. 5, in application, in consideration of the function of the charging power supply 800, in this embodiment, the underwater propulsion unit further includes a second charging assembly 900, the second charging assembly 900 includes a second connecting body 910, one end of the second connecting body 910 is connected to the cable 700, and the other end of the second connecting body 910 is electrically connected to the charging power supply 800 in the form of a plug-fit jack, so as to supply power to the charging power supply 800. Here, it should be noted that the second charging assembly 900 has a structure similar to that of the first charging assembly 600, and is connected to an external power source through the cable 700 to charge the charging power source 800.

The second connecting body 910 is also provided as a tapered body having a smaller diameter at the front end (upstream position) than at the rear end (downstream position), and reduces resistance to water flow when traveling.

In addition, the second connection body 910 may be connected to the waterproof housing of the charging power supply 800 in an embedded manner, and a sealing ring is required to be disposed between the second connection body 910 and the waterproof housing for sealing.

Referring to fig. 6, in addition, the underwater propeller in this embodiment further includes an illumination assembly 920, the illumination assembly 920 includes a third connection body 921 and an illumination lamp 922 disposed inside the third connection body 921, and the third connection body 921 is electrically connected to an end of the charging power supply 800 far from the controller 210 in the form of a plug-fit jack to supply power to the illumination lamp.

The third connecting body 921 may be used instead of the second charging assembly 900, and the third connecting body 921 is also provided as a tapered body having a smaller diameter at a front end (upstream position) than at a rear end (downstream position) thereof, and reduces resistance to water flow when traveling. During the application, the light in the third connector 921 plays certain warning effect, is particularly suitable for in the dim situation of external sunshine.

In addition, in the underwater vehicle provided in the present embodiment, a slide 130 extending in the axial direction is provided on the casing 100, and the slide 130 is used for connecting an external device. The external device can be a surfboard, an inflatable boat, a handheld submersible and the like, and can also be connected with a steering engine to control the steering of the underwater propeller through the steering engine.

The underwater propeller provided by the application realizes the miniaturization and integration of the volume, and effectively integrates the first impeller 400, the second impeller 500, the motor 220 and the controller 210 in the minimum space. The speed reducer 230 and other elements maximize the thrust generated by the propeller, and have small volume and high efficiency, so that the defects of large volume, low efficiency and low speed of the conventional propeller on the market at present are overcome.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. An underwater propeller, comprising: the impeller comprises a shell, a driving assembly, a driving shaft, a first impeller and a second impeller;

2. The underwater propeller of claim 1, wherein the first impeller includes a first hub and a plurality of helical first blades connected to a peripheral side of the first hub; the first hub is tapered, and the diameter of the first hub increases in the direction of water discharge.

3. The underwater propeller of claim 1, wherein the second impeller includes a second hub and a plurality of second blades connected to a peripheral side of the second hub, the second hub is journalled on the drive shaft through a bearing, the second hub is tapered, and a diameter of the second hub decreases in a water discharge direction.

4. The underwater propeller of claim 3, wherein the second blade includes a first bent portion and a second bent portion connected in series in a drainage direction, and an angle is provided between the first bent portion and the second bent portion.

5. The underwater propulsor of claim 1 wherein said drive assembly includes a controller, a motor, a speed reducer, and a sealed housing; the controller is electrically connected with the motor, the motor is connected with the input end of the speed reducer, the output end of the speed reducer is connected with the driving shaft, and the sealing shell is located at the output end of the speed reducer and fixed in the shell.

6. The underwater propulsor of claim 5 wherein the end of the sealed housing adjacent the water outlet is a flow guide portion, the flow guide portion is in the shape of a cone, and the diameter of the flow guide portion decreases in the direction of water discharge.

7. Underwater propulsor according to claim 5, wherein a sealing element is provided between the sealing housing and the drive shaft, and a sealing element is provided between the output of the speed reducer and the drive shaft.

8. An underwater propulsor according to any of claims 5 to 7, wherein the underwater propulsor further comprises a first charging assembly, the first charging assembly comprising a first connecting body, one end of the first connecting body being connected to a cable, the other end being electrically connected to the controller in the form of a plug-fit socket for supplying power to the controller and the motor.

9. An underwater propulsion device as claimed in any of claims 5 to 7 further comprising a charging power source, the charging power source being electrically connected to the controller in the form of a plug-and-socket arrangement for powering the controller and motor.

10. The underwater propulsion unit of claim 9, further comprising a second charging assembly, the second charging assembly comprising a second connector, one end of the second connector being connected to a cable, the other end of the second connector being electrically connected to the charging source in the form of a plug-fit socket for supplying power to the charging source.