CN214985983U

CN214985983U - Remote control propeller for water rescue

Info

Publication number: CN214985983U
Application number: CN202121059545.1U
Authority: CN
Inventors: 王春峰; 许东想; 曹俊雄; 孙健
Original assignee: Weihai Senrong Electric Co ltd
Current assignee: Weihai Senrong Electric Co ltd
Priority date: 2021-05-18
Filing date: 2021-05-18
Publication date: 2021-12-03
Anticipated expiration: 2031-05-18

Abstract

The utility model provides a rescue remote control propeller on water, it has solved current propeller waterproof grade low, inside motor life-span is short, and is large, the little technical problem of moment, it is equipped with the shell, the inside automatically controlled subassembly that is equipped with of shell, brushless waterproof motor and screw, the bottom of shell is passed through the screw and is connected with the connecting seat, automatically controlled subassembly is connected to the upper end of connecting seat, automatically controlled subassembly is equipped with automatically controlled storehouse and automatically controlled board, automatically controlled board is unsettled inside locating automatically controlled storehouse, brushless waterproof motor is connected to the upper end in automatically controlled storehouse, brushless waterproof motor is equipped with the casing and runs through the inside center pin of casing, the rear end of casing is equipped with first seal assembly, automatically controlled board is fixed in on the first seal assembly, the front end of casing is equipped with second seal assembly, the screw is connected to the front end of center pin, the screw is located in the protecting crust, the protecting crust is fixed in the front end of shell. The utility model discloses but wide application in propeller technical field.

Description

Remote control propeller for water rescue

Technical Field

The application belongs to the technical field of propellers, and more specifically relates to a remote control propeller for water rescue.

Background

With the increase of drowning number every year, cases that timely rescue is lacked, rescue conditions are lacked or life is lost due to the rescue of drowning people are not lacked; accidents may occur in various fisheries, seascapes, yacht companies, and anywhere a drowning situation may occur. At present, most motors on the market are brush motors, the waterproof grade is not enough, the service life of the motors is short, or the motors are large in size, small in torque and slow in speed, and the motors are not suitable for quick rescue on water.

Disclosure of Invention

The utility model discloses just for solve above-mentioned background art not enough, provide a small, high rotational speed, longe-lived and high rescue remote control propeller on water of waterproof grade.

Therefore, the utility model provides a low-power rescue remote control propeller on water, it is equipped with a rescue remote control propeller on water, it is equipped with the shell, the inside automatically controlled subassembly that is equipped with of shell, brushless waterproof motor and screw, the bottom of shell is passed through the screw and is connected with the connecting seat, automatically controlled subassembly is connected to the upper end of connecting seat, automatically controlled subassembly is equipped with automatically controlled storehouse and automatically controlled board, automatically controlled board is unsettled to be located inside the automatically controlled storehouse, brushless waterproof motor is connected to the upper end of automatically controlled storehouse, brushless waterproof motor is equipped with the casing and runs through the inside center pin of casing, the rear end of casing is equipped with first seal assembly, automatically controlled board is fixed in on the first seal assembly, the front end of casing is equipped with second seal assembly, the screw is connected to the front end of center pin, the screw is located in the protecting crust, the protecting crust is fixed in the front end of shell.

Preferably, the inside of casing is equipped with center pin, stator and rotor subassembly, and the rotor subassembly is equipped with the cover and locates the epaxial rotor in center, and the rotor surface is equipped with and yoke fastening complex V type is protruding, and the stator is established to the outside cover of yoke, and the stator is fixed in on the casing.

Preferably, a circuit board cover is arranged between the connecting seat and the electric control bin, a wire outlet hole is formed in the center of the circuit board cover, an annular transition waterproof groove is formed in the connecting seat, a first waterproof sealing groove is formed in the circumferential direction of a part, connected with the electric control bin, of the circuit board cover, a first waterproof sealing ring is arranged in the first waterproof sealing groove, and a remote control unit is arranged on an electric control board in the electric control bin.

Preferably, the upper end of the electronic control bin is connected with the first sealing assembly in a matched mode, the first sealing assembly is provided with a rear end cover, the rear end cover is connected with the casing through a screw, a first sealing groove is formed in the joint of the outer peripheral face of the rear end cover and the bottom end of the casing, a first sealing ring is arranged in the first sealing groove, a second sealing groove is formed in the front end of the outer peripheral face of the rear end cover, a second sealing ring is arranged in the second sealing groove, a second waterproof sealing groove is further formed in the outer peripheral face of the rear end cover connected with the electronic control bin, and a second waterproof sealing ring is arranged in the second waterproof sealing groove.

Preferably, the front end of the casing is provided with a second sealing assembly, the second sealing assembly is provided with a front end cover and a front fixing cover connected with the front end cover, the front end cover is provided with a first connecting portion and a second connecting portion, a third sealing groove is formed in the joint of the outer peripheral surface of the second connecting portion and the top end of the casing, a third sealing ring is arranged in the third sealing groove, a fourth sealing groove is formed in the lower end of the outer peripheral surface of the second connecting portion, and a fourth sealing ring is arranged in the fourth sealing groove.

Preferably, a first oil seal hole, a first bearing hole and a containing hole are sequentially formed in the front fixing cover from top to bottom, the containing hole is matched with the first connecting portion of the front end cover, a second oil seal hole is formed in the first connecting portion of the front end cover, a second bearing hole is formed in the second connecting portion, a third bearing hole is formed in the rear end cover, a first oil seal connected with the central shaft is arranged in the first oil seal hole, a second oil seal connected with the central shaft is arranged in the second oil seal hole, and a first roller bearing, a second roller bearing and a third roller bearing connected with the central shaft are respectively arranged in the first bearing hole, the second bearing hole and the third bearing hole.

Preferably, a fourth bearing hole is further formed in the second connecting portion of the front end cover, and a thrust bearing connected with the central shaft is arranged in the fourth bearing hole.

Preferably, the upper end of the front fixing cover is connected with a fan blade fixing frame and a threaded check ring, the fan blade fixing frame is connected with the front fixing cover in a flat matching mode, the front end of the central shaft is connected with a propeller, and the propeller is provided with a fan blade column, a blade, a nut and a fan blade limiting block.

Preferably, the front end face of the rear end cover is provided with a wire passing hole.

Preferably, the peripheral surface of the shell is provided with a plurality of water inlet filtering holes, and the upper end of the protective shell connected with the shell is also fixedly provided with a protective cover.

The utility model has the advantages that:

(1) the utility model provides a remote control propeller for water rescue, which is provided with a shell, wherein a brushless waterproof motor, an electric control assembly and a propeller are arranged in the inner cavity of the shell, thus avoiding accidental injury; the electric control assembly is provided with an electric control plate and an electric control bin, and the electric control plate is arranged in the electric control bin in a suspension mode, so that the situation of water leakage and short circuit is avoided. Brushless waterproof motor lug connection screw can be according to rivers condition direct control drive screw speed on water, has improved the ability of impeller control speed. The utility model discloses collect the motor, automatically controlled, the screw is as an organic whole, when guaranteeing power, greatly reduces overall dimension, and has improved impeller control speed's ability, has greatly improved the possibility of quick rescue on water.

(2) The utility model discloses a propeller adopts brushless waterproof motor, has cancelled the battery part of current propeller, and automatically controlled terminal passes through the wire hole and connects external power source, has further reduced the volume of propeller, conveniently carries. And moreover, the thrust bearing is arranged in the brushless waterproof motor, so that the torque of the motor can be improved, and the problem of small torque of a driving motor of the existing propeller is solved.

(3) The utility model discloses a brushless waterproof motor and automatically controlled subassembly all are equipped with multiple waterproof sealing washer, have improved brushless waterproof motor and automatically controlled subassembly's waterproof grade, and it is waterproof can reach IP68 protection level.

(4) The utility model discloses a be equipped with a plurality of intakes on the shell and filter the hole, when the intake is guaranteed to the shell, also can prevent that large-scale debris from getting into.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is an exploded view of the present invention;

fig. 3 is an exploded view of the brushless waterproof motor of the present invention;

fig. 4 is a sectional view of the brushless waterproof motor of the present invention;

fig. 5 is a schematic structural view of the connecting seat and the circuit board cover of the present invention;

fig. 6 is a partial view of the present invention.

The symbols in the drawings illustrate that:

1. a housing; 2. a connecting seat; 3. an electric control bin; 4. an electric control board; 5. a housing; 6. a central shaft; 7. a protective shell; 8, a circuit board cover; 9. a wire outlet hole; 10. an annular transition waterproof groove; 11. a first waterproof seal ring; 12. a first waterproof seal groove; 13. a rear end cap; 14. a first seal groove; 15. a first seal ring; 16. a second seal groove; a second seal ring; 18. a stator; 19. a rotor; a V-shaped protrusion; 21. a magnetic yoke; 22. a magnetic yoke sleeve; 23. a wire passing hole; 24. a front end cover; 25. a front fixing cover; 26. a first connection portion; 27. a second connecting portion; 28. a third seal groove; 29. a third seal ring; 30. a fourth seal groove; 31. a fourth seal ring; 32. a first oil seal hole; 33. a first bearing bore; 34. an accommodation hole; 35. a second oil seal hole; 36. a second bearing bore; 37. a first oil seal; 38. a second oil seal; 39. a first clamp spring; 40. a second clamp spring; 41. a first roller bearing; 42. a second roller bearing; 43. a third roller bearing; 44. a third bearing hole; 45. a second accommodation hole; 46. a third clamp spring; a thrust bearing; 48. a fourth bearing hole; 49. a fan blade fixing frame; 50. a threaded retainer ring; 51. a fan blade column; 52. a paddle; 53. a fan blade limiting block; 54. a nut; 55. a water inlet filter hole; 56. a protective cover; 57. a second waterproof sealing groove; 58. a second waterproof seal ring; 59. and a fifth sealing ring.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application clearer, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

In the description of the embodiments of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "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 simplicity of description, but do 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, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating 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 the embodiments of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as fixed or detachable connections or as an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the embodiments of the present invention can be understood by those skilled in the art according to specific situations.

The utility model provides a rescue remote control propeller on water, as shown in fig. 1, it is equipped with shell 1 and locates inside automatically controlled subassembly, brushless waterproof machine and the screw of shell 1, locates inside the shell 1 with automatically controlled subassembly, brushless waterproof machine and screw, has stopped unexpected injury, has improved the security of device itself. Shell 1 is inside hollow round platform form, and shell 1's bottom is passed through the screw and is connected with connecting seat 2, and automatically controlled subassembly is connected to connecting seat 2's upper end, and automatically controlled subassembly is equipped with automatically controlled storehouse 3 and automatically controlled board 4, and automatically controlled board 4 is unsettled inside locating automatically controlled storehouse 3, stops the condition of the short circuit that leaks, has prolonged the life of device. Brushless waterproof motor is connected to the upper end of automatically controlled storehouse 3, brushless waterproof motor is equipped with casing 5 and runs through the inside center pin 6 of casing 5, the rear end of casing 5 is equipped with first seal assembly, automatically controlled board 4 is fixed in on the first seal assembly through the screw, the front end of casing 5 is equipped with second seal assembly, first seal assembly and second seal assembly seal up the front end and the rear end of casing 5 respectively, brushless waterproof motor's waterproof grade has been improved, guarantee that the device can be applied to in the rescue equipment on water. The screw is connected to the front end of brushless waterproof motor's center pin 6, drives the screw through brushless waterproof motor and rotates, and the speed of direct control drive screw can improve the speed of impeller to be adapted to quick rescue on water. The screw is arranged in the protective shell 7, and the protective shell 7 is fixed at the front end of the shell 1. The utility model discloses collect the motor, automatically controlled, the screw is as an organic whole, when guaranteeing power, greatly reduces overall dimension, has improved the speed of impeller moreover, has greatly improved the possibility of rescue on water.

Further, as shown in fig. 5, a circuit board cover 8 is disposed between the connecting seat 2 and the electric control cabin 3, a wire outlet 9 is disposed in the center of the circuit board cover 8, and is used for leading out an electric control terminal wire on the electric control board 4 and connecting to an external power supply, and the bottom of the wire outlet 9 is sealed by potting adhesive to ensure the internal waterproofness. The periphery of the connecting seat 2 is provided with a connecting mounting hole for connecting with rescue equipment.

The up end of connecting seat 2 passes through the screw to be connected with circuit board lid 8, is equipped with annular transition waterproof groove 10 on the connecting seat 2, because there may be the gap connecting seat 2 and circuit board lid 8 screw junction, gets into in 1 inside water of shell can get into annular transition waterproof groove 10 by the gap, prevents that water from getting into automatically controlled storehouse 3 in, avoids the phenomenon of short circuit to take place. The circuit board lid 8 is equipped with first waterproof seal groove 12 with the partial circumference that automatically controlled storehouse 3 is connected, is equipped with first waterproof sealing circle 11 in the first waterproof seal groove 12 for seal the lower extreme of automatically controlled storehouse 3, further prevent that water from getting into in the automatically controlled storehouse 3. And a remote control unit is arranged on the electric control board 4 in the electric control bin 3 and used for receiving a remote control signal and driving the electric control board 4 to drive the brushless waterproof motor to operate.

As shown in fig. 2-4, the upper end of the electronic control cabin 4 is connected to a first sealing assembly in a fitting manner, the first sealing assembly is provided with a rear end cover 13, and the rear end cover 13 is connected to the housing 5 through screws. The junction of the outer peripheral surface of the rear end cover 13 and the bottom end of the machine shell 5 is provided with a first sealing groove 14, a first sealing ring 15 is arranged in the first sealing groove 14, and a third sealing ring 29 is pressed through the matching of the bottom end of the machine shell 5 and the rear end cover 13, so that the sealing effect of the rear end edge of the machine shell 5 is achieved, and water is prevented from entering the interior of the machine shell 5 from the rear end of the machine shell 5. The front end of the peripheral surface of the rear end cover 13 is provided with a second sealing groove 16, a second sealing ring 17 is arranged in the second sealing groove 16, and the second sealing ring 17 is in contact with the inner wall of the machine shell 5 to achieve the double sealing effect.

Further, a second waterproof sealing groove 57 is further formed in the outer peripheral surface of the rear end cover 13 connected with the electronic control cabin 3, and a second waterproof sealing ring 58 is arranged in the second waterproof sealing groove 57 and used for enhancing the sealing performance between the rear end cover 13 and the electronic control cabin 3.

As shown in fig. 3, the interior of the housing 5 is provided with a central shaft 6, a stator 18 and a rotor assembly, the rotor assembly is provided with a rotor 19 sleeved on the central shaft 6, and the surface of the rotor 19 is provided with a V-shaped protrusion 20 for fastening and matching with a magnetic yoke 21. In order to further ensure that the yoke 21 is tightly fitted with the rotor 19, yoke sleeves 22 are further provided at the front and rear ends of the yoke 21. The stator 18 is sleeved outside the yoke 21, and the stator 18 is fixed on the housing 5.

Further, as shown in fig. 2, a wire passing hole 23 is formed in the front end face of the rear end cover 13, so that the stator winding can extend out through the wire passing hole 23 and is connected with the electric control board 4 to provide electric energy for the brushless waterproof motor.

As shown in fig. 3-4, a second sealing assembly is disposed at the front end of the casing 5, the second sealing assembly is provided with a front end cover 24 and a front fixing cover 25 connected to the front end cover 24, the front fixing cover 25 and the casing 5 are fastened and matched by screws, the front end cover 24 is provided with a first connecting portion 26 and a second connecting portion 27, the first connecting portion 26 and the second connecting portion 27 are an integral connecting structure, the first connecting portion 26 is a cylindrical structure, and the second connecting portion 27 is a disc-shaped structure. The junction of the peripheral face of second connecting portion 27 and casing 5 top is equipped with third sealed slot 28, is equipped with third sealing washer 29 in the third sealed slot 28, through the cooperation of casing 5 top and second connecting portion 27, compresses tightly third sealing washer 29, reaches the sealed effect of casing 5 front end edge, prevents that water from casing 5 front end from getting into inside the casing 5. The lower end of the outer peripheral surface of the second connecting part 27 is provided with a fourth sealing groove 30, a fourth sealing ring 31 is arranged in the fourth sealing groove 30, and the fourth sealing ring 31 is in contact with the inner wall of the machine shell 5, so that the double sealing effect is achieved.

The front fixing cover 25 is provided with a first oil seal hole 32, a first bearing hole 33 and a receiving hole 34 from top to bottom, the receiving hole 34 is used for matching with the first connecting part 26 of the front end cover 24, so that the front end cover 24 and the front fixing cover 25 are tightly connected, and the structure is compact. In order to enhance the waterproof sealing performance of the front cover 24 and the front fixing cover 25, a fifth sealing ring 59 is provided between the first connecting portion 26 of the front cover 24 and the receiving hole 34 of the front fixing cover 25. Be equipped with second oil blanket hole 35 in the first connecting portion 26 of front end housing 24, the first oil blanket hole 32 of preceding fixed cover 25 and the second oil blanket hole 35 of front end housing 24 are the through-hole, be equipped with the first oil blanket 37 of being connected with center pin 6 in the first oil blanket hole 32, be equipped with the second oil blanket 38 of being connected with center pin 6 in the second oil blanket hole 35, first oil blanket 37 and second oil blanket 38 all are used for axial seal, prevent that water from flowing into casing 5 inside along center pin 6, reinforcing brushless motor's waterproof performance.

Further, the inner walls of the first oil seal hole 32 of the front fixed cover 25 and the second oil seal hole 35 of the front end cover 24 are respectively provided with a first clamp spring groove and a second clamp spring groove, and a first clamp spring 39 and a second clamp spring 40 are respectively arranged in the first clamp spring groove and the second clamp spring groove and are used for limiting the axial movement of the first oil seal 37 and the second oil seal 38.

In order to ensure the normal operation of the central shaft 6, bearings are arranged at the front end and the rear end of the central shaft 6. Specifically, the front end of the center shaft 6 is provided with a first roller bearing 41 and a second roller bearing 42, the first roller bearing 42 is disposed in the first bearing hole 33 of the front fixing cover 25, the second roller bearing 42 is disposed in the second bearing hole 36 of the first connecting portion 26 of the front cover 24, the rear end of the center shaft 6 is provided with a third roller bearing 43, and the third roller bearing 43 is disposed in the third bearing hole 44 of the rear cover 13. In order to restrict the axial movement of the center shaft 6 and the third roller bearing 43, a third snap spring 46 is provided above the third roller bearing 43, and the third snap spring 46 is provided in a third snap spring groove at the rear end of the center shaft.

A fourth bearing hole 48 is further formed in the second connecting portion 27 of the front end cover 24 and located below the second bearing hole 36, and a thrust bearing 47 connected with the central shaft 6 is arranged in the fourth bearing hole 48 and used for increasing the torque of the rotation of the central shaft 6 and overcoming the problem of small motor torque.

The rear end cover 13 is further provided with a second accommodating hole 45, the second accommodating hole 45 is communicated with the third bearing hole 44, the rear end of the central shaft 6 is connected with the third roller bearing 43 and extends into the second accommodating hole 45, and the second accommodating hole 45 is a blind hole and can prevent water from entering the interior of the machine shell 5 from the axial direction.

In order to further fix the brushless waterproof motor inside the housing 1, the upper end of the front fixing cover 25 is connected to a fan blade fixing frame 49, as shown in fig. 6, the fan blade fixing frame 49 is fixedly connected to the casing 5 and the protection casing 7, respectively. The fan blade fixing frame 49 is matched with the front fixing cover 25 in a flat shape, so that the rotation of the brushless waterproof motor can be limited. The upper end face of the fan blade fixing frame 49 is provided with a threaded retainer ring 50 in threaded connection with the front fixing cover 25 for preventing the fan blade fixing frame 49 from moving axially.

The front end of the central shaft 6 is connected with a propeller, and the propeller is provided with a fan blade column 51, a fan blade 52, a fan blade limiting block 53 and a screw cap 54. The fan blade column 51 is sleeved on the central shaft 6, and two blades 52 are fixedly arranged on the fan blade column 51. The rear end of the fan blade column 51 is connected with a fan blade limiting block 53, and is matched with the central shaft 6 through a limiting key for limiting the rear end of the fan blade column 51. The front end of the fan blade column 51 is provided with a nut 54, and the nut 54 is provided with an internal thread which is matched with the external thread at the front end of the central shaft 6 and used for limiting the front end of the fan blade column 51.

Furthermore, the circumferential surface of the shell 1 is provided with a plurality of water inlet filtering holes 55, water flow can enter the shell 1 from the water inlet filtering holes 55, and large impurities can be prevented from entering the shell 1. A protective cover 56 is further fixed at the upper end of the protective shell 7, on one hand, the protective cover 56 plays a role in protection, and the safety during working can be improved; on the other hand, water inside the housing 1 is discharged from the protective cover 56 by the rotation of the propeller, thereby generating thrust to drive the propeller forward.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. The utility model provides a rescue remote control propeller on water, its is equipped with the shell, characterized by, inside automatically controlled subassembly, brushless waterproof motor and the screw of being equipped with of shell, the bottom of shell is passed through the screw and is connected with the connecting seat, automatically controlled subassembly is connected to the upper end of connecting seat, automatically controlled subassembly is equipped with automatically controlled storehouse and automatically controlled board, automatically controlled board is unsettled inside locating automatically controlled storehouse, brushless waterproof motor is connected to the upper end in automatically controlled storehouse, brushless waterproof motor is equipped with the casing and runs through the inside center pin of casing, the rear end of casing is equipped with first seal assembly, and automatically controlled board is fixed in on the first seal assembly, the front end of casing is equipped with second seal assembly, the screw is connected to the front end of center pin, the screw is located in the protecting crust, the protecting crust is fixed in the front end of shell.

2. The remote-control water rescue propeller as claimed in claim 1, wherein a central shaft, a stator and a rotor assembly are arranged inside the housing, the rotor assembly is provided with a rotor sleeved on the central shaft, the surface of the rotor is provided with a V-shaped protrusion tightly matched with the magnetic yoke, the stator is sleeved outside the magnetic yoke, and the stator is fixed on the housing.

3. The remote-control water rescue propeller as claimed in claim 1, wherein a circuit board cover is arranged between the connecting seat and the electric control cabin, a wire outlet hole is formed in the center of the circuit board cover, an annular transition waterproof groove is formed in the connecting seat, a first waterproof sealing groove is formed in the circumferential direction of a part where the circuit board cover is connected with the electric control cabin, a first waterproof sealing ring is arranged in the first waterproof sealing groove, and a remote control unit is arranged on an electric control board in the electric control cabin.

4. The remote-control water rescue propeller as claimed in claim 3, wherein the upper end of the electric control cabin is connected with a first sealing assembly in a matching manner, the first sealing assembly is provided with a rear end cover, the rear end cover is connected with the casing through a screw, a first sealing groove is formed at the joint of the outer peripheral surface of the rear end cover and the bottom end of the casing, a first sealing ring is arranged in the first sealing groove, a second sealing groove is formed at the front end of the outer peripheral surface of the rear end cover, a second sealing ring is arranged in the second sealing groove, a second waterproof sealing groove is further formed in the outer peripheral surface of the rear end cover connected with the electric control cabin, and a second waterproof sealing ring is arranged in the second waterproof sealing groove.

5. The remote-control water rescue propeller as claimed in claim 4, wherein the front end of the housing is provided with a second sealing assembly, the second sealing assembly is provided with a front end cover and a front fixing cover connected with the front end cover, the front end cover is provided with a first connecting portion and a second connecting portion, a third sealing groove is formed at the joint of the outer peripheral surface of the second connecting portion and the top end of the housing, a third sealing ring is arranged in the third sealing groove, a fourth sealing groove is formed at the lower end of the outer peripheral surface of the second connecting portion, and a fourth sealing ring is arranged in the fourth sealing groove.

6. The remote-control water rescue propeller as claimed in claim 5, wherein a first oil seal hole, a first bearing hole and a receiving hole are sequentially formed in the front fixing cover from top to bottom, the receiving hole is matched with the first connecting portion of the front end cover, a second oil seal hole is formed in the first connecting portion of the front end cover, a second bearing hole is formed in the second connecting portion, a third bearing hole is formed in the rear end cover, a first oil seal connected with the central shaft is formed in the first oil seal hole, a second oil seal connected with the central shaft is formed in the second oil seal hole, and a first roller bearing, a second roller bearing and a third roller bearing connected with the central shaft are respectively arranged in the first bearing hole, the second bearing hole and the third bearing hole.

7. The remote-control water rescue propeller as claimed in claim 6, wherein a fourth bearing hole is further formed in the second connecting portion of the front end cover, and a thrust bearing connected with the central shaft is arranged in the fourth bearing hole.

8. The water rescue remote-control propeller as claimed in claim 6, wherein the upper end of the front fixing cover is connected with a fan blade fixing frame and a threaded retainer ring, the fan blade fixing frame and the front fixing cover are in flat fit connection, the front end of the central shaft is connected with a propeller, and the propeller is provided with a fan blade column, a blade, a nut cap and a fan blade limiting block.

9. The remote-control water rescue propeller as claimed in claim 4, wherein the front end face of the rear end cover is provided with a wire through hole.

10. The remote-control water rescue propeller as claimed in claim 1, wherein a plurality of water inlet filter holes are formed in the circumferential surface of the housing, and a protective cover is fixedly arranged at the upper end of the protective shell connected with the housing.