CN102424103A - Automatic air inflation device for lifejacket - Google Patents
Automatic air inflation device for lifejacket Download PDFInfo
- Publication number
- CN102424103A CN102424103A CN2011104332515A CN201110433251A CN102424103A CN 102424103 A CN102424103 A CN 102424103A CN 2011104332515 A CN2011104332515 A CN 2011104332515A CN 201110433251 A CN201110433251 A CN 201110433251A CN 102424103 A CN102424103 A CN 102424103A
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- motor
- shank
- thorn
- control circuit
- sensor contact
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Abstract
The invention discloses an automatic air inflation device for a lifejacket, which comprises a main body housing and a piercing needle rod for piercing an air source, wherein a piercing needle rod is arranged in the main body housing in a way of being capable of being pushed, the automatic air inflation device further comprises a control circuit board, a motor, a battery and a water sensor contact point, the motor, the battery and the water sensor contact point are connected with the control circuit board, and the motor is connected on the piercing needle rod through a threaded screw rod transmission mechanism; therefore, energy of the device is provided by the battery, when the water sensor contact point meets with water for triggering the control circuit board to start the motor, and the motor rotates and utilizes a threaded screw rod for transmission so as to convert torque force to thrust and further push the piercing needle rod to pierce the air source. The automatic air inflation device for the lifejacket is completely different from the working way of using a paper bag and compressing powder to pre-press a spring, the work is realized by converting electric energy to mechanical energy, electromechanical integration is adopted, a product can be used repeatedly and is not affected by external air temperature and humidity or limited by service life, and the product can provide the operation function which is more convenient and intelligent for a user.
Description
Technical field
The present invention relates to the life-saving art, refer in particular to the self-filler that a kind of life jacket is used.
Background technology
Life jacket is claimed life waistcoat again, is a kind of clothes of giving first aid to life, and design class is vest seemingly, is through to have enough buoyancy on one's body, and drowning people's head can be surfaced.At present widely used be the inflatable life jacket of automatic or manual, inflatable life jacket has become mixed boat, yacht, military, water policeman, coastguard cutter coastguard vessel waterborne, over-water construction operation, marine drilling platform, has fought flood and relieve victims, salvaged one of the life in fields such as flood control, navigator, the hydrology, water conservancy.
The inflatable lifejacket principle of work: life jacket fully enclosed cavity is connected with percussion lock in CO2 compression steel cylinder through connection for bbreather pipe; Percussion lock is compressed steel cylinder with CO2 and is punctured when drowning, and the CO2 of release is full of generation buoyancy with life jacket rapidly.
The percussion method that present inflatable lifejacket adopts mostly is earlier spring to be compressed in the cavity through a block; This block is to adopt paper bag or powder compaction to process; After the life jacket entry; Paper bag chance water softening or powder compaction chance water are fluffy, and the compression spring rapid release impacted thorn shank puncture steel cylinder release of carbon dioxide life jacket was inflated this moment.
To be water change the work of realization, the defective below existing inevitably to the physical condition of material to the principle of work that this employing paper bag and powder compaction percussion product adopts: 1, under hot and humid condition, making moist has the risk of inefficacy; 2, after-30 temperature is met water, cause spring slowly to discharge, make steel cylinder can not puncture or puncture insufficient because block is met water freezing; 3, paper bag and powder compaction were the one-shot usage time limit in 2 ~ 3 years, caused the periodic inspection cost of inflatable lifejacket higher.
Summary of the invention
In view of this; The present invention is directed to the disappearance of prior art existence, its main purpose provides the self-filler that a kind of life jacket is used, and adopts Electromechanical Design; For the user provides more convenient and intelligent product, and the later maintenance of this product is simple, cost is low.
For realizing above-mentioned purpose, the present invention adopts following technical scheme:
The self-filler that a kind of life jacket is used; Comprise main body cover and the thorn shank that is used to puncture source of the gas; This thorn shank can place in the main body cover with being pushed; Also include a control circuit board and with this control circuit board bonded assembly motor, battery and water sensor contact, this motor through the thread screw transmission device be connected in the thorn shank on; The control circuit of start-up control circuit card after the contact with water of water sensor contact, the control electric motor starting, it is movable that motor drives the thorn shank through thread screw.
Preferably; The containing cavity that has an open upper end in the said main body cover; Aforementioned motor, thread screw, battery and thorn shank are assembled in the containing cavity by this opening; One upper casing shutoff is on this opening, and surface on upper casing is exposed in aforementioned water sensor contact, and control circuit board is installed in the bottom surface of upper casing.
Preferably; Further include one and be used for the LED lamp that button switch and that the start-up control circuit card resets is used for display control circuit plate "on" position; Said control circuit board is provided with testing circuit, low-voltage detection circuit and control chip, and this testing circuit is connected between control chip and the aforementioned water sensor contact, and this low-voltage detection circuit is connected between control chip and the aforementioned keys switch; This battery electrically connects with water sensor contact and button switch respectively; The electric current of control chip divides two-way, and one the road is connected on the motor, and another road is connected on the LED lamp.
Preferably, the below of said motor is connected with a speed-changing gear box, and a fixed mount is installed between this speed-changing gear box and the motor, and the center shaft of this speed-changing gear box passes the center that fixed mount is connected thread screw.
Preferably, further include a manual trigger shaft, this manual trigger shaft can be pulled down the outside that is articulated in main body cover with the thorn shank with pushing away; Wherein, Manually the head end of trigger shaft is provided with a projection, and cooresponding with it thorn shank is provided with a groove, and this projection is buckled on the groove of thorn shank.
The present invention compared with prior art has tangible advantage and beneficial effect; Particularly; Can know that by technique scheme it mainly is that thread screw, motor, battery, control circuit board and water sensor contact are set, and the energy of gas filled device is provided by battery in main body cover; When water sensor contact chance water trigger control circuit plate starter motor, the motor rotation utilizes the thread screw transmission to convert torsion to thrust promotion thorn shank and pierces through source of the gas.Hence one can see that, and the present invention is different from existing mode of operation with paper bag and powder compaction pre-compressed spring fully, and it is to convert mechanical energy realization work into through electric energy; Adopt electromechanical integration; But the product repeated multiple times is used, and does not receive the influence of outside air temperature and humidity, does not have the restriction of tenure of use; For the user provides more convenient and intelligent operating function, and the cost of paper bag and powder compaction later stage replacing accessory has been exempted in later maintenance fully.
And; This product pierces through the carbon dioxide steel cylinder function except above-mentioned automatically; Also through articulate the manual trigger shaft that is connected on the thorn shank in a side of main body cover, only need with manual trigger shaft along the articulated section position rotary mention certain angle, can will sting shank and press down; Can realize the effect that pierces through of carbon dioxide steel cylinder equally, further provide safeguard for the practicality of this gas filled device.
For more clearly setting forth architectural feature of the present invention and effect, come the present invention is elaborated below in conjunction with accompanying drawing and specific embodiment.
Description of drawings
Fig. 1 is the exploded perspective scheme drawing of the present invention's embodiment;
Fig. 2 is the present invention's an embodiment package assembly schematic perspective view, and the part main body cover among the figure is removed;
Fig. 3 is the control principle block diagram of the present invention's embodiment, and wherein first, second, third time block is the control chip programming module;
Fig. 4 is the initial condition scheme drawing of the present invention's embodiment, and the thorn shank among the figure does not puncture carbon dioxide steel cylinder;
Fig. 5 is the running condition scheme drawing of the present invention's embodiment, and the thorn shank among the figure has punctured carbon dioxide steel cylinder, and this punctures to motor-driven and punctures automatically;
Fig. 6 is another running condition scheme drawing of the present invention's embodiment, and the thorn shank among the figure has punctured carbon dioxide steel cylinder, and this punctures to manually puncturing.
The accompanying drawing identifier declaration:
1, water sensor contact 2, button switch
3, upper casing 4, motor
5, speed-changing gear box 6, fixed mount
7, thread screw 8, battery
9, thorn shank 10, main body cover
11, manual trigger shaft 12, containing cavity
13, cavity 14, pricker chamber
15, air extractor vent 16, groove
17, projection 18, testing circuit
19, low-voltage detection circuit 20, control chip
21, First time block 22, second time block
23, the 3rd time block.
The specific embodiment
Please with reference to shown in Figure 1, the concrete structure that it has demonstrated the present invention's preferred embodiment comprises main body cover 10, is installed in motor 4, thread screw 7, thorn shank 9, battery 8 and manual trigger shaft 11 on the main body cover 10.
Wherein, have the containing cavity 12 of an open upper end in the said main body cover 10, aforementioned motor 4 is assembled in the containing cavity 12 by this opening with thread screw 7 parts such as grade, and a upper casing 3 shutoff are on this opening, so that containing cavity 12 is sealed.Control circuit board, button switch 2 and water sensor contact 1 are installed on this upper casing 3, and this control circuit board is positioned at the bottom surface of upper casing 3; Stretch out outside upper casing 3 end faces water sensor contact 1; Button switch 2 exposes on upper casing 3 surfaces, presses this button switch 2, can the start-up control circuit card reset, this button switch 2 is connected with control circuit board.And this upper casing 3 is preferably installed a LED lamp, to show the "on" position of gas filled device.
In conjunction with Fig. 2 and Fig. 3; The bottom of said main body cover 10 is used to be connected source of the gas; The source of the gas of present embodiment is a carbon dioxide steel cylinder; Be provided with a cavity 13 in the bottom of main body cover 10 to carbon dioxide steel cylinder, the carbon dioxide steel cylinder outer is screwed on the inwall of this cavity 13, to realize combining closely of gas filled device and carbon dioxide steel cylinder.
The bottom surface of said containing cavity 12 be provided with one extend through the cavity 13 of main body cover 10 bottoms pricker chamber 14; Be used for to sting in shank 9 is installed in; The shape in said pricker chamber 14 is formulated according to thorn shank 9, the circular cavity structure that the acupuncture chamber 14 in the present embodiment diminishes for two-stage from top to bottom, and the lower end inwall in pricker chamber 14 is provided with air extractor vent 15; This air extractor vent 15 links to each other with life jacket; When the thorn shank 9 thrust greater than 260N, the thorn shank 9 can carbon dioxide steel cylinder be punctured, inflate to life jacket through air extractor vent 15.
The upper end of this thorn shank 9 is provided with a groove 16, is used to cooperate manual trigger shaft 11 to use, and can will sting shank 9 through the manual trigger shaft 11 of manual control and press down, and makes the life jacket inflation to puncture carbon dioxide steel cylinder.This manual trigger shaft 11 and thorn shank 9 are articulated in the outside of main body cover 10 abreast, and wherein, manually the head end of trigger shaft 11 is provided with a projection 17, and this projection 17 stretches into the inside in pricker chamber 14, is stuck on the groove 16 of thorn shank 9.Therefore, only need the end of manual trigger shaft 11 upwards be mentioned certain angle, thorn shank 9 is depressed, puncture the carbon dioxide steel cylinder inflation.
Said thread screw 7, battery 8 and motor 4 are installed in the containing cavity 12 of main body cover 10, and wherein this thread screw 7, motor 4 are arranged on the same straight line with thorn shank 9, can reduce the power that thorn shank 9 punctures carbon dioxide steel cylinder.Battery 8 is positioned at by the side of thread screw 7 and motor 4, and the top of this battery 8 and motor 4 all is butted on the control circuit board of upper casing 3, to realize the electric connection of battery 8 and motor 4, drive motor 4 rotations.The below of this motor 4 is connected a speed-changing gear box 5, and the center shaft of speed-changing gear box 5 is connected the center of thread screw 7.And a fixed mount 6 is installed between this thread screw 7 and the motor 4, thus thread screw 7 can stably organize below ground fixed mount 6, motor 4 and speed-changing gear box 5 can be stabilized in the top of fixed mount 6, for the assembling of each assembly brings convenience.
As shown in Figure 7; Said control circuit board is provided with testing circuit 18, low-voltage detection circuit 19 and control chip 20, and this testing circuit 18 is connected between control chip 20 and the aforementioned water sensor contact 1, and this low-voltage detection circuit 19 is connected between control chip 20 and the aforementioned keys switch 2; This battery 8 electrically connects with water sensor contact 1 and button switch 2 respectively; The electric current of control chip 20 divides two-way, and one the road is connected on the motor 4, and another road is connected on the LED lamp; And in the control chip programming first time block 21 and second time block 22 are set to motor 4, in the control chip programming the 3rd time block 23 are set to the LED lamp.
The concrete mode of this control circuit board is following:
⑴, sensor make testing circuit 18 conductings to water; Moment is given chip power supply; Produce semaphore lock testing circuit 18 conductings by control chip 20 then; Make its lasting conducting and give the entire circuit continued power; Control chip 20 produces the commentaries on classics of corresponding signal drive motor 4 cws simultaneously, LED lamp length is bright and open first time block 21, makes the complete power down of entire circuit by first time block, the 21 control signals that motor 4 stops automatically, lock detecting circuit 18 is closed and rotate and removed to the LED lamp;
, after button switch 2 conductings to entire circuit power supply, produce signal drive motors 4 by control chip 20 and rotate counterclockwise and start the 3rd time block 23, utilize low-voltage detection circuit 19 to begin to detect low-voltage signal simultaneously:
1. when not detecting low voltage signal, motor 4 rotates to automatically under the control of the 3rd time block 23 and stops, and unclamps button switch 2 then and makes the complete power down of entire circuit;
2. ought detect low voltage signal; Control chip 20 produces a semaphore lock testing circuit 18; Make its lasting conducting and invalid to entire circuit continued power and button switch 2; While control chip 20 generation corresponding signals stop motor 4 and rotate also driving LED lamp flicker and start second time block 22, and the signal of being controlled LED lamp SELF CLs and removing lock detecting circuit 18 by second time block 22 makes the complete power down of entire circuit.
Principle of work of the present invention: start-up circuit after 1 contact with water of water sensor contact; Battery 8 provides enough electric energy drive motor 4 to rotate; Speed-changing gear box 5 promotes and converts thrust (greater than 260N) promotion thorn shank 9 to after torsion thread screw 7 continues torsion to promote; Puncture carbon dioxide steel cylinder when thorn shank 9 arrives thorn shank 9 positions, steel cylinder is emitted gas and is accomplished the gas replenishment process to life jacket.Being used to complete back button switch 2 can reset to product, but product exhausts preceding repeated use at battery 8 electric weight.The present invention also has the manual work part; When spurring manual trigger shaft 11; Manually trigger shaft 11 drives thorn shank 9, and the position that drives thorn shank 9 when manual trigger shaft 11 can puncture carbon dioxide steel cylinder equally, and carbon dioxide steel cylinder is emitted gas and accomplished the gas replenishment process to life jacket.
In sum; Design focal point of the present invention is; It mainly is that thread screw, motor, battery, control circuit board and water sensor contact are set in main body cover; The energy of gas filled device is provided by battery, and when water sensor contact chance water trigger control circuit plate starter motor, the motor rotation utilizes the thread screw transmission to convert torsion to thrust promotion thorn shank and pierces through source of the gas.Hence one can see that, and the present invention is different from existing mode of operation with paper bag and powder compaction pre-compressed spring fully, and it is to convert mechanical energy realization work into through electric energy; Adopt electromechanical integration; But the product repeated multiple times is used, and does not receive the influence of outside air temperature and humidity, does not have the restriction of tenure of use; For the user provides more convenient and intelligent operating function, and the cost of paper bag and powder compaction later stage replacing accessory has been exempted in later maintenance fully.
And; This product pierces through the source of the gas function except above-mentioned automatically; Also through articulate the manual trigger shaft that is connected on the thorn shank in a side of main body cover, only need with manual trigger shaft along the articulated section position rotary mention certain angle, can will sting shank and press down; Can realize the effect that pierces through of source of the gas equally, further provide safeguard for the practicality of this gas filled device.
The above; It only is preferred embodiment of the present invention; Be not that technical scope of the present invention is done any restriction, so every foundation technical spirit of the present invention all still belongs in the scope of technical scheme of the present invention any trickle modification, equivalent variations and modification that above embodiment did.
Claims (5)
1. self-filler that life jacket is used; Comprise main body cover and the thorn shank that is used to puncture source of the gas; This thorn shank can place in the main body cover with being pushed; It is characterized in that: also include a control circuit board and with this control circuit board bonded assembly motor, battery and water sensor contact, this motor through the thread screw transmission device be connected in the thorn shank on; The control circuit of start-up control circuit card after the contact with water of water sensor contact, the control electric motor starting, it is movable that motor drives the thorn shank through thread screw.
2. the self-filler that a kind of life jacket according to claim 1 is used; It is characterized in that: the containing cavity that has an open upper end in the said main body cover; Aforementioned motor, thread screw, battery and thorn shank are assembled in the containing cavity by this opening; One upper casing shutoff is on this opening, and surface on upper casing is exposed in aforementioned water sensor contact, and control circuit board is installed in the bottom surface of upper casing.
3. the self-filler that a kind of life jacket according to claim 1 is used; It is characterized in that: further include one and be used for the LED lamp that button switch and that the start-up control circuit card resets is used for display control circuit plate "on" position; Said control circuit board is provided with testing circuit, low-voltage detection circuit and control chip, and this testing circuit is connected between control chip and the aforementioned water sensor contact, and this low-voltage detection circuit is connected between control chip and the aforementioned keys switch; This battery electrically connects with water sensor contact and button switch respectively; The electric current of control chip divides two-way, and one the road is connected on the motor, and another road is connected on the LED lamp.
4. the self-filler that a kind of life jacket according to claim 1 is used; It is characterized in that: the below of said motor is connected with a speed-changing gear box; One fixed mount is installed between this speed-changing gear box and the motor, and the center shaft of this speed-changing gear box passes the center that fixed mount is connected thread screw.
5. the self-filler that a kind of life jacket according to claim 1 is used; It is characterized in that: further include a manual trigger shaft; This manual trigger shaft can be pulled down the outside that is articulated in main body cover with the thorn shank with pushing away, and wherein, manually the head end of trigger shaft is provided with a projection; Cooresponding with it thorn shank is provided with a groove, and this projection is buckled on the groove of thorn shank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104332515A CN102424103A (en) | 2011-12-22 | 2011-12-22 | Automatic air inflation device for lifejacket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104332515A CN102424103A (en) | 2011-12-22 | 2011-12-22 | Automatic air inflation device for lifejacket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102424103A true CN102424103A (en) | 2012-04-25 |
Family
ID=45958167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011104332515A Pending CN102424103A (en) | 2011-12-22 | 2011-12-22 | Automatic air inflation device for lifejacket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102424103A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013091207A1 (en) * | 2011-12-22 | 2013-06-27 | Wu Tinglun | Automatic air inflation device for lifejacket |
| CN107763258A (en) * | 2016-08-23 | 2018-03-06 | 上海吉龙塑胶制品有限公司 | A kind of air valve with LED controller |
| CN108909986A (en) * | 2018-06-21 | 2018-11-30 | 四川斐讯信息技术有限公司 | A kind of system of life jacket automatic inflating, method and a kind of life jacket |
| CN113830265A (en) * | 2020-06-24 | 2021-12-24 | 江苏百舟安全科技有限公司 | Structure-adjustable water immersion inflating equipment for inflatable life-saving equipment |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4768128A (en) * | 1986-01-08 | 1988-08-30 | Conax Florida Corporation | Water activated pressurized gas release device |
| US5685455A (en) * | 1994-02-11 | 1997-11-11 | Bernhardt Apparatebau Gmbh U. Co. | Device for inflating a container or a floating body, more particularly a life jacket |
| CN2316250Y (en) * | 1997-09-13 | 1999-04-28 | 李敦森 | Automatic inflatable multifunctional life jacket |
| US6254447B1 (en) * | 1999-03-13 | 2001-07-03 | Wolfgang Niemann | Self-acting flotation device for flotation life preservers |
| JP2003063484A (en) * | 2001-08-22 | 2003-03-05 | Hosoya Fireworks Co Ltd | Automatic buoyancy bag inflating device |
| CN2913177Y (en) * | 2005-09-26 | 2007-06-20 | 湖南大学 | Autoinflation drowning life jacket |
| CN201800901U (en) * | 2010-05-20 | 2011-04-20 | 瑞日企业有限公司 | Automatic inflating water-borne life-saving device |
-
2011
- 2011-12-22 CN CN2011104332515A patent/CN102424103A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4768128A (en) * | 1986-01-08 | 1988-08-30 | Conax Florida Corporation | Water activated pressurized gas release device |
| US5685455A (en) * | 1994-02-11 | 1997-11-11 | Bernhardt Apparatebau Gmbh U. Co. | Device for inflating a container or a floating body, more particularly a life jacket |
| CN2316250Y (en) * | 1997-09-13 | 1999-04-28 | 李敦森 | Automatic inflatable multifunctional life jacket |
| US6254447B1 (en) * | 1999-03-13 | 2001-07-03 | Wolfgang Niemann | Self-acting flotation device for flotation life preservers |
| JP2003063484A (en) * | 2001-08-22 | 2003-03-05 | Hosoya Fireworks Co Ltd | Automatic buoyancy bag inflating device |
| CN2913177Y (en) * | 2005-09-26 | 2007-06-20 | 湖南大学 | Autoinflation drowning life jacket |
| CN201800901U (en) * | 2010-05-20 | 2011-04-20 | 瑞日企业有限公司 | Automatic inflating water-borne life-saving device |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013091207A1 (en) * | 2011-12-22 | 2013-06-27 | Wu Tinglun | Automatic air inflation device for lifejacket |
| CN107763258A (en) * | 2016-08-23 | 2018-03-06 | 上海吉龙塑胶制品有限公司 | A kind of air valve with LED controller |
| CN107763258B (en) * | 2016-08-23 | 2019-08-20 | 上海吉龙塑胶制品有限公司 | A kind of air valve with LED controller |
| CN108909986A (en) * | 2018-06-21 | 2018-11-30 | 四川斐讯信息技术有限公司 | A kind of system of life jacket automatic inflating, method and a kind of life jacket |
| CN113830265A (en) * | 2020-06-24 | 2021-12-24 | 江苏百舟安全科技有限公司 | Structure-adjustable water immersion inflating equipment for inflatable life-saving equipment |
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Application publication date: 20120425 |