CN109178277B - Propeller for power life-saving device - Google Patents

Propeller for power life-saving device Download PDF

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Publication number
CN109178277B
CN109178277B CN201811302532.5A CN201811302532A CN109178277B CN 109178277 B CN109178277 B CN 109178277B CN 201811302532 A CN201811302532 A CN 201811302532A CN 109178277 B CN109178277 B CN 109178277B
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CN
China
Prior art keywords
water
propeller
duct
life
saving device
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CN201811302532.5A
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Chinese (zh)
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CN109178277A (en
Inventor
胡勇智
刘陈利
张云飞
高剑客
谢志文
谭伟远
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Zhuhai Yunzhou Intelligence Technology Ltd
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Zhuhai Yunzhou Intelligence Technology Ltd
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Priority to CN201811302532.5A priority Critical patent/CN109178277B/en
Publication of CN109178277A publication Critical patent/CN109178277A/en
Priority to PCT/CN2019/115134 priority patent/WO2020088672A1/en
Priority to AU2019372032A priority patent/AU2019372032B2/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B63SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63HMARINE PROPULSION OR STEERING
    • B63H11/00Marine propulsion by water jets
    • B63H11/02Marine propulsion by water jets the propulsive medium being ambient water
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B63SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63CLAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
    • B63C9/00Life-saving in water

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Catching Or Destruction (AREA)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)

Abstract

The invention discloses a propeller for a power life-saving device, which comprises a duct, a power mechanism and a water retaining mechanism, wherein the duct defines a containing cavity, the wall of the duct is provided with two water inlets which are communicated with the containing cavity and are arranged up and down, the tail part of the duct is provided with a water outlet which is communicated with the containing cavity, and at least part of the water retaining mechanism is arranged at the water inlet which is positioned above and is used for blocking water from being discharged from the water inlet which is positioned above. Due to the arrangement of the two water inlets, the invention can reduce the loss of thrust after water flow, improve the propulsion efficiency of the propeller, simultaneously enable the power life-saving device to generate thrust no matter which direction the power life-saving device is put into water, and provide favorable conditions for timely and rapid rescue.

Description

Propeller for power life-saving device
Technical Field
The invention relates to the technical field of water surface rescue, in particular to a propeller for a power life-saving device.
Background
At present, the opening degree of the sea area of China is higher and higher, the maritime activities of people are increased, and the accompanied maritime accidents and maritime rescue are also increased. At present, rescue for people falling into water is basically performed by hand, the distance is short, the efficiency is low, the rescue device belongs to passive rescue, in addition, the requirements on certain water property are met for the people falling into water, if the people falling into water cannot swim, the people falling into water cannot understand the water property, the rescue effect of the hand-thrown life buoy cannot be achieved, in addition, the rescue effect of the hand-thrown life buoy mainly depends on the people throwing the life buoy, the throwing distance is great, the throwing near point is small, and secondary injury to the people falling into water is possibly generated when the life buoy is very close to a mother ship.
In addition, some life preservers are equipped with propulsion devices, but such propulsion devices are generally complex in structure, large in size, low in propulsion efficiency, and have forward and reverse directions when in use, that is, the propulsion devices can only function when the life preserver is in water in the forward direction.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a propeller for a power life-saving device.
According to an embodiment of the invention, the propeller comprises:
the duct tube defines a containing cavity, the wall of the duct tube is provided with two water inlets which are communicated with the containing cavity and are arranged up and down, and the tail part of the duct tube is provided with a water outlet which is communicated with the containing cavity;
the power mechanism is arranged in the duct and is used for enabling water to be discharged out of the duct along the direction from the water inlet to the water outlet so as to generate thrust; and
And at least part of the water blocking mechanism is arranged at the water inlet at the upper part and used for blocking water from being discharged from the water inlet at the upper part.
As a further alternative of the propeller, the duct includes a first duct and a second duct connected to the first duct, and the water inlets are disposed on the upper and lower sides of the wall of the first duct.
As a further alternative of the propeller, the water inlet is in the form of a grating.
As a further alternative of the propeller, a sealing ring is provided at the connection between the first duct and the second duct.
As a further alternative of the propeller, the second duct forms the water outlet in a necked-down shape.
As a further alternative of the propeller, the power mechanism includes a motor, a rotation shaft connected to an output shaft of the motor, and a propeller spirally provided on the rotation shaft.
As a further alternative of the propeller, a coupling is further provided between the motor and the rotating shaft.
As a further alternative of the propeller, the propeller further comprises a conical mounting seat sleeved on the periphery of the power mechanism, a circle of groove is formed in the conical mounting seat along the circumferential direction of the conical mounting seat, and the water retaining mechanism is rotatably arranged in the groove.
As a further alternative of the propeller, the water blocking mechanism comprises a water blocking plate and a counterweight body, the water blocking plate is rotatably arranged in the propeller, and the counterweight body is connected with the water blocking plate, so that the water blocking plate is always positioned above under the gravity of the counterweight body.
As a further alternative to the propeller, the counterweight body is made of a corrosion resistant material.
The invention has the beneficial effects that:
according to the propeller for the power life-saving device in the embodiment, due to the arrangement of the two water inlets of the culvert pipe, and the water blocking mechanism can block water from being discharged from the water inlet positioned above, namely, when the power life-saving device is used normally, water always enters from the water inlet positioned below and is discharged from the water outlet, the loss of thrust after water flow can be reduced, and the propulsion efficiency of the propeller is improved. Meanwhile, due to the arrangement of the two water inlets, the power life-saving device can generate thrust no matter what direction the power life-saving device is put into water, and favorable conditions are provided for timely and rapid rescue.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 shows a top view of a powered life saving device provided according to an embodiment of the present invention;
fig. 2 illustrates a bottom view of a powered life preserver provided in accordance with an embodiment of the present invention;
fig. 3 shows a rear view of a powered life saving device provided according to an embodiment of the present invention;
fig. 4 shows a perspective view of a powered life saving appliance provided according to an embodiment of the present invention;
fig. 5 shows a disassembled view of a main body of a power life-saving device and a propeller according to an embodiment of the present invention;
fig. 6 shows an exploded view of a propeller of a powered life saving apparatus provided according to an embodiment of the present invention;
fig. 7 shows a drainage pattern of a powered life saving device provided according to an embodiment of the present invention;
fig. 8 is a schematic structural view showing a connection seat of a power life saving device according to an embodiment of the present invention;
fig. 9 is a schematic view showing the structure of a conical mounting seat of a power life-saving device according to an embodiment of the present invention;
fig. 10 shows a schematic installation view of a conical mounting seat and a water blocking mechanism of a power life saving device according to an embodiment of the invention.
Description of main reference numerals:
100-a life-saving appliance body; 200-propeller; 300-control box; 400-a power supply unit; 500-a wireless charging module; 110-bearing position; 120-a housing; 130-an anti-skid heat preservation mechanism; 140-mounting slots; 150-an elastic buffer ring; 160-rope grabbing; 170-a grip hole; 180-LED indicator lights; 210-duct tube; 220-a power mechanism; 230-a water retaining mechanism; 240-a sealing mechanism; 121-control box cavity; 122-a power supply unit cavity; 123-an upper housing; 124-a lower housing; 125-wireless charging module cavity; 131-antiskid plates; 132-heating element; 151-mounting holes; 211-water inlet; 212-a water outlet; 213-a first bypass tube; 214-a second bypass tube; 221-motor; 222-a rotation axis; 223-propeller; 231-water baffle; 232-a counterweight; 233-second connecting ribs; 241-a connection socket; 242-cone mount; 243-sealing rings; 1221—connection port; 2311-a first connecting rib; 2331-arcuate cavity; 2411-a first groove; 2421-a second groove; 241 a-a circular bottom plate; 241 b-circular recess; 241 c-ribs; 242 a-grooves.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
Examples
The embodiment provides a power life-saving device.
Referring to fig. 1 to 4, the power life saving apparatus includes a life saving apparatus main body 100, a propeller 200, and a control box 300.
Wherein the life saving apparatus main body 100 has a supporting position 110 for supporting a human body. The propeller 200 is provided at the rear of the life saving device body 100, and the propeller 200 is used to generate a pushing force so that the life saving device body 100 is pushed forward. The control box 300 is provided in the life saving apparatus main body 100 and connected to the propeller 200 for controlling the opening and closing of the propeller 200.
In this way, as the propeller 200 capable of generating thrust is arranged at the tail of the life-saving device main body 100, the life-saving device main body 100 can be forwards propelled under the action of the propeller 200, after the power life-saving device is put into water, a signal is sent to the control box 300, and then the control box 300 is used for controlling the opening and closing of the propeller 200, so that the whole power life-saving device can be rapidly propelled forwards and accurately reach the vicinity of people falling into water, and timely, rapid and accurate rescue of the people falling into water is realized.
With continued reference to fig. 1 to 4, the power life saving apparatus in the embodiment of the present invention is a symmetrical power life saving apparatus, which is embodied in that a life saving apparatus main body 100 has a left-right and up-down symmetrical structure, a propeller 200 is symmetrically disposed at both sides of the life saving apparatus main body 100, and a control box 300 is disposed on a central axis of the life saving apparatus main body 100 in a left-right direction.
Specifically, the life saving apparatus main body 100 includes a housing 120, a bearing position 110 is formed at a middle position of the housing 120, the housing 120 defines a control box cavity 121 and a power supply unit cavity 122, the control box cavity 121 is located at the middle position of the housing 120, and the control box 300 is disposed in the control box cavity 121. The power supply unit cavities 122 are symmetrically arranged at two sides of the housing 120, the propeller 200 is mounted at the tail of the power supply unit cavities 122, and a power supply unit 400 is arranged in the power supply unit cavities 122, and the power supply unit 400 is used for establishing connection with the propeller 200 to supply power to the propeller 200.
So far, the whole power life-saving device is symmetrical about the central axis in the left-right direction.
In order to achieve the up-down symmetrical structure, in the embodiment of the invention, the housing 120 includes an upper housing 123 and a lower housing 124, the upper housing 123 is covered on the lower housing 124, and the upper housing 123 and the lower housing 124 have the same shape and size, so that once the upper housing 123 is covered on the lower housing 124, the upper and lower surfaces of the housing 120 formed by the upper housing 123 and the lower housing 124 have the same structure.
The whole power life-saving device has a left-right and up-down symmetrical structure, has important significance for facilitating the operation of the power life-saving device by operators and climbing the power life-saving device by people falling into water, can facilitate the use of the operators and the people falling into water, and provides a foundation for timely and rapid rescue.
Specifically, due to the symmetrical arrangement of the power life-saving device, operators can throw the power life-saving device into water in any direction, so that the preparation work of the operators is reduced to a certain extent; when the power life-saving device reaches the position of the person falling into water, the person falling into water can climb up the power life-saving device at any angle without distinguishing the position of the power life-saving device, so that the time for the person falling into water to stay in the water is shortened to a certain extent, and a certain time base is provided for timely rescue.
On the other hand, the symmetrical arrangement of two power supply units 400 plays an important role in the emergency situation of the power saving device. For example, when one of the power supply units 400 fails, the other power supply unit 400 can continue to operate, at least to ensure that the power life-saving device can be used normally.
In some embodiments, the power supply unit 400 includes a storage battery, preferably a lithium battery.
In addition, referring to fig. 5, in order to facilitate charging the storage battery, a wireless charging module 500 may be further disposed in the power life saving device for charging the power supply unit 400, the housing 120 further has a wireless charging module cavity 125, the wireless charging module cavity 125 is located right behind the control box cavity 121, and the wireless charging module 500 is disposed in the wireless charging module cavity 125.
In some embodiments, to ensure the stability of the falling person on the power life-saving device, the power supply unit cavity 122 arches to form a limiting portion, so that the human body is limited between the limiting portions.
Specifically, referring to fig. 3 to 4 in combination, since the power supply unit cavities 122 are symmetrically disposed on two sides of the life-saving device main body 100, and the power supply unit cavities 122 are arranged in an arched manner, a concave area is formed in the middle of the life-saving device main body 100, and it is obvious that when a person falling into water is in the concave area, due to the effect of the limiting portion formed by the power supply unit cavities 122, the person falling into water can be prevented from falling into water for the second time.
It can be appreciated that the body temperature will drop rapidly after the person falls into the water, so as to maintain the normal function of the person falling into the water as much as possible, and provide more precious and more time for subsequent rescue, and the anti-slip thermal insulation mechanism 130 may be further disposed on the life saving device main body 100.
With continued reference to fig. 4, the anti-slip thermal insulation mechanism 130 includes an anti-slip plate 131 and a heating element 132.
The antiskid plate 131 is used for antiskid. The heating member 132 is located under the cleat 131 or is penetrated into the cleat 131, and the heating member 132 is used to generate heat and transfer the heat to the cleat 131 when energized.
Therefore, the stability of the person falling into water on the power life-saving device can be further guaranteed through the function of the antiskid plate 131, the occurrence of secondary falling into water is prevented, the antiskid plate 131 can be further enabled to have a certain temperature through the function of the heating element 132, the normal function of the person falling into water is maintained, and precious and more time is provided for subsequent rescue.
In the embodiment where the heating member 132 is located below the anti-slip plate 131, a receiving groove capable of receiving the heating member 132 may be provided on the surface of the life saving apparatus main body 100, which may be provided right behind the control box chamber 121, and the anti-slip plate 131 may be covered after the heating member 132 is mounted in the receiving groove.
In order to enable heat to be quickly transferred to the antiskid plate 131, a layer of heat conducting film can be sleeved on the periphery of the antiskid plate 131, the heat conducting film can be made of heat conducting materials, for example, the heat conducting film can be woven through aluminum wires, and therefore the heat conducting film not only can play a role in heat conduction, but also has an antiskid function.
Of course, the cleat 131 itself may be made of a thermally conductive material in order to transfer heat to the cleat 131 as quickly as possible. At this time, in order to provide the anti-slip sheet 131 with an anti-chemical function, anti-slip strips and/or anti-slip protrusions and/or anti-slip grooves, etc. may be provided on the surface of the anti-slip sheet 131.
In an embodiment in which the heating element 132 is inserted into the cleat 131, a hole may be provided in the cleat 131, and the heating element 132 may be fitted into the hole.
In the above two modes, a heat conducting member may be further provided between the anti-skid plate 131 and the heating member 132 to further increase the heat transfer rate.
In addition, the heating element 132 may be curved and circuitously disposed so that the heating element 132 has a larger contact area with the cleat 131 as much as possible.
In some embodiments, the heating element 132 may employ an electric heating wire, which may be directly connected to the power supply unit 400 at both sides, and the electric heating wire is supplied with power by the power supply unit 400.
In the embodiment of the present invention, in order to prevent a person falling into water from being damaged by collision of the power lifesaving device during climbing of the power lifesaving device, the following arrangement is provided around the circumference of the lifesaving device main body 100.
Referring to fig. 5, a mounting groove 140 is provided at an edge of the life saving device body 100 in a circumferential direction, and an elastic buffer ring 150 is provided in the mounting groove 140, the elastic buffer ring 150 protruding from the mounting groove 140.
Therefore, due to the arrangement of the elastic buffer ring 150, people falling into water can be contacted with the elastic buffer ring 150 at first, and the people falling into water can be prevented from climbing on the power life-saving device without damage under the buffer and support of the elastic buffer ring 150.
Further, the portion of the elastic buffer ring 150 protruding outwards is arc-shaped, and the arc-shaped portion can be designed in an ergonomic manner, so that the elastic buffer ring 150 is not uncomfortable to people falling into water.
In some embodiments, the elastomeric buffer ring 150 is made of rubber or a material such as rubber having the same properties.
In addition, referring to fig. 5, in order to facilitate a person falling into water to quickly climb up the power life buoy, a grab rope 160 is installed at the edge of the life buoy body 100.
It will be appreciated that the arrangement of the grab rope 160 provides a grabbing point for a person falling into the water, and when the person falling into the water grabs the grab rope 160, the person falling into the water can exert force by grabbing the rope 160, thereby climbing up the power life-saving device.
The grab rope 160 can be directly installed on the elastic buffer ring 150, and at this time, the elastic buffer ring 150 can be uniformly provided with installation holes 151 at intervals along the extending direction of the elastic buffer ring, and the grab rope 160 is sleeved in the installation holes 151.
Of course, the grab rope 160 may be directly mounted on the main body 100 of the life saving device, and mounting posts (not shown) may be uniformly spaced at the edge of the main body 100 of the life saving device, and the grab rope 160 may be connected to the mounting posts.
With continued reference to fig. 5, in addition to the above, at least two grip holes 170 may be provided on the head of the life-saving device body 100 for the convenience of the person falling into water climbing the power life-saving device and for the convenience of the stability of the person falling into water on the power life-saving device.
Further, the grip hole 170 is provided near the edge of the life-saving device body 100, so as to facilitate the gripping of people falling into water.
Further, the hand grip hole 170 is strip-shaped, which is further convenient for people falling into water to grasp.
In order to accommodate the symmetrical shape of the power life saving device, the grip holes 170 are preferably symmetrically provided on the life saving device body 100.
Of course, the grip hole 170 can facilitate the rescue personnel to grip the power life saving device to be thrown, in addition to the above-mentioned effects.
As described above, in order to facilitate the installation of the propeller 200, a connection port 1221 is provided at the rear portion of the power supply unit chamber 122, and the propeller 200 is hermetically installed at the connection port 1221.
Referring to fig. 5-7, in an embodiment of the present invention, a propeller 200 includes a duct 210, a power mechanism 220, and a water blocking mechanism 230.
The duct 210 defines a receiving cavity, the wall of the duct 210 is provided with two water inlets 211 which are communicated with the receiving cavity and are arranged up and down, and the tail of the duct 210 is provided with a water outlet 212 which is communicated with the receiving cavity. The power mechanism 220 is disposed in the duct 210, and the power mechanism 220 is used to make water exit the duct 210 along the direction from the water inlet 211 to the water outlet 212 to generate thrust. At least part of the water blocking mechanism 230 is disposed at the water inlet 211 at the upper side for blocking water from being discharged from the water inlet 211 at the upper side.
In this way, due to the arrangement of the two water inlets 211 of the duct 210, and the water blocking mechanism 230 can block water from being discharged from the water inlet 211 positioned above, that is, when the power life-saving device is in normal use, water always enters from the water inlet 211 positioned below and is discharged from the water outlet 212, the loss of thrust after water flow can be reduced, and the propulsion efficiency of the propeller 200 is improved. Meanwhile, due to the arrangement of the two water inlets 211, the power life-saving device can generate thrust no matter which direction the power life-saving device is put into water.
The duct 210 includes a first duct 213 and a second duct 214 connected to the first duct 213, and water inlets 211 are disposed on the upper and lower sides of the wall of the first duct 213.
Further, the water inlet 211 is formed in a grid shape.
The joint of the first duct 213 and the second duct 214 is provided with a sealing ring to improve the sealing effect of the connection of the first duct 213 and the second duct 214.
The second duct 214 forms a reduced-mouth water outlet 212, which can increase the water flow discharging speed to a certain extent, and is beneficial to improving the propelling force.
It is to be appreciated that, for ease of installation, the duct 210 is divided into a first duct 213 and a second duct 214. Of course, in other embodiments, the duct 210 may be integrally formed to reduce the manufacturing process and control the manufacturing time.
With continued reference to fig. 6, in an embodiment of the present invention, the power mechanism 220 includes a motor 221, a rotating shaft 222 connected to an output shaft of the motor 221, and a propeller 223 spirally disposed on the rotating shaft 222.
In connection with the foregoing, the motor 221 is connected to the power supply unit 400 in the power supply unit chamber 122, and is supplied with power by the power supply unit 400. The motor 221 is controlled by the control box 300, and after the control box 300 receives an instruction (the instruction can be implemented by a control person to control the remote controller, and the control relationship between the remote controller and the control box 300 is already well known in the prior art, which is not described in detail herein), the motor 221 can be controlled to operate, and finally the propeller 223 is rotated, so that thrust is generated.
In order to ensure the reliability of the connection, a coupling or the like may be provided between the motor 221 and the rotation shaft 222.
It will be appreciated that the motor 221 is preferably mounted in a sealed manner in order to ensure proper and stable use of the motor 221.
In contrast, the propeller 200 according to the embodiment of the present invention further includes a sealing mechanism 240, the motor 221 is disposed in the sealing mechanism 240, and is wrapped by the sealing mechanism 240, and the sealing mechanism 240 includes a connection base 241, a tapered mounting base 242, and a sealing ring 243.
The connection base 241 is installed at the connection port 1221 at the rear of the power supply unit chamber 122, and the connection base 241 is provided with a circle of first grooves 2411 along the circumferential direction thereof. The tapered mount 242 is provided with a ring of second grooves 2421 along its circumference that mate with the first grooves 2411. The sealing ring 243 is disposed at the junction of the first groove 2411 and the second groove 2421.
In this way, through the cooperation of the first groove 2411 and the second groove 2421, the motor 221 can be sealed in the space enclosed by the connecting seat 241 and the conical mounting seat 242, so that the working efficiency of the motor 221 is improved, and the propulsion efficiency of the whole propeller 200 is also improved.
Referring to fig. 8, the connection base 241 includes a circular bottom plate 241a and a circular recess 241b disposed in a middle portion of the circular bottom plate 241a, a circle of ribs 241c are disposed on the circular recess 241b in a protruding manner, and the ribs 241c and the circular bottom plate 241a enclose a first groove 2411.
The circular recess 241b has a power mechanism mounting hole at a central position thereof, at which the aforementioned motor 221 is mounted.
After the motor 221 is installed in place, the tapered mount 242 may be mounted to the connector 241.
Referring to fig. 9, a circle of second grooves 2421 is concavely formed on the end surface of the conical mounting seat 242, and the width of the second grooves 2421 is adapted to the thickness of the convex ribs 241c, so that after the conical mounting seat 242 is mounted on the connecting seat 241, the second grooves 2421 are just clamped on the convex ribs 241c, and other parts of the end surface of the conical mounting seat 242 are clamped into the first grooves 2411, and at this time, the sealing connection between the conical mounting seat 242 and the connecting seat 241 can be realized by combining the function of the sealing ring 243.
In order to mount the tapered mount 242 and the connection base 241, screw holes may be provided in the end surface of the tapered mount 242 and the first groove 2411 of the connection base 241, and the mounting connection between the two may be achieved by screws or bolts.
In addition, threaded holes may be provided at the edge of the connection base 241, which are present to facilitate the installation of the bypass tube 210.
At this time, it can be understood that the propeller 200 is provided with the motor 221, the conical mounting seat 242 and the duct 210 of the power mechanism 220 from inside to outside, and meanwhile, the motor 221 is located in a space surrounded by the conical mounting seat 242 and the connecting seat 241, and other parts of the power mechanism 220, such as the rotating shaft 222 and the propeller 223, are located in the space of the duct 210.
In the embodiment of the present invention, the water blocking mechanism 230 can spontaneously block the water inlet 211 located above, and for this purpose, the water blocking mechanism 230 may be implemented by the following one example structure.
Referring to fig. 9-10, the water blocking mechanism 230 includes a water blocking plate 231 and a counterweight 232.
Wherein, the water baffle 231 is rotatably disposed in the propeller 200, and the counterweight 232 is connected to the water baffle 231, such that the water baffle 231 is always above under the gravity of the counterweight 232.
So, through the setting of breakwater 231 with the counter weight body 232, through the gravity pulling effect of counter weight body 232 for power life-saving appliance is thrown into the aquatic in any angle, and the breakwater 231 can be independent the rotation to the water inlet 211 department that is in the top, has simplified power life-saving appliance's use greatly, provides the advantage for timely, quick rescue.
In order to implement the rotation of the water blocking mechanism 230, referring to fig. 9, a ring of grooves 242a may be disposed in the circumferential direction of the tapered mounting seat 242, and the water blocking mechanism 230 is disposed in the grooves 242a when rotated.
The water blocking mechanism 230 requires a shape matching the groove 242 a. For this purpose, the water blocking mechanism 230 may be provided as follows.
Referring to fig. 10, the two side edges of the water baffle 231 extend downward to form a first connection rib 2311, the water baffle mechanism 230 further includes a second connection rib 233 connected to the first connection rib 2311, the first connection rib 2311 and the second connection rib 233 form a ring structure, the second connection rib 233 is provided with an arc-shaped cavity 2331, and the counterweight 232 is installed in the arc-shaped cavity 2331.
So far, once the water blocking mechanism 230 is installed in the groove 242a, the water blocking mechanism 230 can spontaneously rotate under the influence of gravity, so that the water blocking plate 231 is located above.
In some embodiments, the weight 232 forms an integral structure with the second connecting bar 233.
Of course, in other embodiments, the counterweight 232 and the second connecting bar 233 may be detachably mounted.
In order to match the shape of the ductwork 210, the water baffle 231 is designed in an arc-shaped structure.
In addition, the coverage area of the water baffle 231 is preferably slightly larger than the water inlet 211 of the propeller 200 to ensure that the water baffle 231 completely shields the water inlet 211 located above.
The water baffle 231 is preferably made of a lightweight corrosion-resistant material, such as aluminum or aluminum alloy or plastic, and the counterweight 232 is preferably made of a heavier corrosion-resistant material, such as stainless steel.
Finally, in order to facilitate the operator to control the advancing direction and route of the power life-saving device, two LED indicator lamps 180 may be disposed on two sides of the life-saving device main body 100, where the two LED indicator lamps 180 are different colors.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
While embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the invention.

Claims (9)

1. A propeller for a powered life saving appliance, comprising:
the duct tube defines a containing cavity, the wall of the duct tube is provided with two water inlets which are communicated with the containing cavity and are arranged up and down, and the tail part of the duct tube is provided with a water outlet which is communicated with the containing cavity;
the power mechanism is arranged in the duct and is used for enabling water to be discharged out of the duct along the direction from the water inlet to the water outlet so as to generate thrust; and
The water blocking mechanism is at least partially arranged at the water inlet positioned above and used for blocking water from being discharged from the water inlet positioned above;
the water retaining mechanism comprises a water retaining plate and a counterweight body, the water retaining plate is rotationally arranged in the propeller, the counterweight body is connected with the water retaining plate, the water retaining plate is always located above the gravity of the counterweight body, the coverage area of the water retaining plate is larger than that of the water inlet, and the water retaining plate is of an arc-shaped structure which is matched with the shape of the culvert pipe.
2. The propeller as recited in claim 1, wherein the duct includes a first duct and a second duct connected to the first duct, and the water inlets are provided on upper and lower sides of a wall of the first duct.
3. The propeller of claim 2, wherein the water inlet is in the form of a grid.
4. The propeller of claim 2, wherein a sealing ring is provided at the junction of the first duct and the second duct.
5. The propeller of claim 4, wherein the second duct forms the outlet in the form of a constriction.
6. The propeller of claim 1, wherein the power mechanism comprises a motor, a rotating shaft connected to an output shaft of the motor, and a propeller disposed on the rotating shaft.
7. The propeller of claim 6, wherein a coupling is further provided between the motor and the rotating shaft.
8. The propeller as recited in claim 1, further comprising a conical mounting seat sleeved on the periphery of the power mechanism, wherein the conical mounting seat is provided with a circle of grooves along the circumference thereof, and the water blocking mechanism is rotatably arranged in the grooves.
9. The propeller of claim 1, wherein the counterweight is made of a corrosion resistant material.
CN201811302532.5A 2018-11-02 2018-11-02 Propeller for power life-saving device Active CN109178277B (en)

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CN201811302532.5A CN109178277B (en) 2018-11-02 2018-11-02 Propeller for power life-saving device
PCT/CN2019/115134 WO2020088672A1 (en) 2018-11-02 2019-11-01 Power buoyant device
AU2019372032A AU2019372032B2 (en) 2018-11-02 2019-11-01 Power lifesaving device

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AU2019372032B2 (en) * 2018-11-02 2023-07-06 Zhuhai Yunzhou Intelligence Technology Ltd. Power lifesaving device
CN113460270B (en) * 2021-06-29 2022-05-10 珠海云洲智能科技股份有限公司 Overwater rescue method, electronic device and storage medium

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