CN101306233B - Rotor axis switching bi-functional spray gun - Google Patents
Rotor axis switching bi-functional spray gun Download PDFInfo
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- CN101306233B CN101306233B CN2008100624989A CN200810062498A CN101306233B CN 101306233 B CN101306233 B CN 101306233B CN 2008100624989 A CN2008100624989 A CN 2008100624989A CN 200810062498 A CN200810062498 A CN 200810062498A CN 101306233 B CN101306233 B CN 101306233B
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Abstract
The invention discloses a rotating shaft switching double-function spray gun, which comprises a gun barrel (9), a gun holder (10) and a gun tip assembly. The gun tip assembly comprises a gun tip (1), a liquid inclined hole guiding plate (2), a foam mixed cavity (4), a cavity cover (6) and a hollow rotating shaft (7), wherein, the hollow rotating shaft (7) is provided with an atomized liquid channel (74) and a foam liquid channel (75); the foam mixed cavity (4) is provided with an air hybrid cavity (44), a liquid temporary storing cavity (43), a foam channel (42) and an atomized channel (41); an air inlet (63) is arranged on the cavity cover (6); a foam spray nozzle (13) and a plurality of swirling flow cavities (11) and an atomized spray nozzle (12) are arranged on the gun tip (1); an inclined hole guiding unit (22) is arranged on the liquid inclined hole guide plate (2); an atomized sprayer and a foam sprayer can be formed; after the structure is adopted, the rotating shaft switching double-function spray gun can be used as a spray gun used for eradicating A, B and C types of fire, and has the advantages of reasonable structure, convenient operation and use, long shoot range, good fire fighting effect, etc.
Description
Technical field
The invention relates to a kind of fire-fighting with the fire extinguishing spray gun, and particularly a kind of have mist fire-fighting and a bifunctional fire extinguishing spray gun of foam fire-fighting.
Background technology
In recent years, in daily life, because awareness of the importance of fire prevention is thin, all kinds of fire and brushfire accident take place frequently, and have brought great spirit and material injury for the local government and the common people.How to develop efficient, environmental protection, simple and easy fire extinguishing spray gun reliable, that a rifle is used more has become the problem that fire-fighting equipment is imminent.
At present, the comparatively advanced technology of fire-fighting equipment is thin water smoke technology, make water atomization by spraying system, make water droplet have bigger surface area with respect to its volume, this means the heat of their easier absorption flame and evaporate, thereby consume a large amount of heat energy of flame, make the flame cooling and form a large amount of steam; This steam can intercept fuel gas, reduces the oxygen content of air, makes fray-out of flame.Especially under water source situation in short supply, the hydromining of equal volume put out a fire with spraying system have significant water saving, efficient, rescue destroys advantages such as little.Thereby adopt thin water smoke technology to carry out the main flow trend that advantages such as fire-fighting fire extinguishing is efficient with it, environmental protection, low cost, wide adaptation, high reliability become current fire-fighting equipment market.Known water smoke generation type roughly has following several:
1, most of spraying systems adopt water are forced into 5Mpa-20Mpa, by under high pressure water being transported to the atomizing that realizes water in the atmosphere by the aperture in the nozzle.These holes typically have a diameter from 0.1-0.5mm.The water of discharging from the nozzle high speed goes out the very strong air-swirl of interruption-forming the hole, and this helps to attract jet water stream and makes the part water atomization.And the speed and the huge momentum of water bump surrounding air make jet water stream resolve into the water smoke of atomizing.Under high pressure, can realize the very small water atomization of water, the diameter of water droplet generally can be less than 20 μ m.
The hydraulic spray nozzle head generally includes several nozzles that are arranged on the convex taper seat, so that nozzle head has the bigger area of coverage.Perhaps adopt the twin-jet nozzle system, it is known in CN1852769A and WO0154472 A1 that this water smoke forms technology, the shortcoming of high pressure multiinjector or twin-jet nozzle system be inhomogeneous in the covering of the common water of the area of coverage, range is nearer (generally being no more than 3 meters), very little nozzle bore requires very little water permeability, and high hydraulic pressure has higher energy consumption.Not strong to outdoor fire-fighting fire extinguishing practicality.
2, attempt to solve the problem that energy consumes by reducing hydraulic pressure.Known method is by making water atomization being generally under the lower pressure of 0.3Mpa-20Mpa water mixed with air pressurized, this air pressurized can be the nitrogen of 5Mpa-30Mpa usually, and scatters this mixture from the nozzle head with one or more holes.Because pressure differential is when gas water when jet hole expands here is atomized.This hydraulic pressure system of picture can be realized very little minute water atomizing, and is so little in the system of high hydraulic pressure work but the hole needn't look like, thereby needs lower water permeability.As the system that great majority are worked under high hydraulic pressure, in order to realize the area of coverage of zone of reasonableness on nozzle head, nozzle head generally includes a plurality of double nozzle holes that are distributed on the convex taper seat.Because essential many holes, these holes are very little, are generally 0.5-1mm, need good water permeability, and also are used for other nozzles, because water trends towards the form distribution with the atomized water jet flow, thereby bring uneven water to scatter.Simultaneously, because they need water source and source of the gas, this makes this system become comparatively complicated.Therefore, not strong to outdoor fire-fighting fire extinguishing practicality yet.
3, using pressure up to 15Mpa to 25Mpa to make enough atomization fire extinguishings fine of water traditionally, still, high pressure needs jumbo, and common this jumbo can only be made static or large-scale device.
Also having a kind of is that pressure by less relatively about 1Mpa to 2.5Mpa makes the fire extinguishing of water microatomization, and has and surpass 10 meters horizontal effective range, and it is known in ZL98812441.6 that this thin water smoke forms technology; Under the driving of pressure water source, liquid enters distribution cavity, mainly continue to flow to nozzle opening the nozzle chambers from central opening with central jet, liquid from side opening forms powerful rotation owing to flow through the helicla flute on the circumference of next door on the wall of nozzle chambers, form two kinds of remarkable different liquid flows after entering nozzle chambers in nozzle chambers, the thick water droplet of central jet has relatively large inertia and long range is arranged.1.5mm the nozzle opening of diameter makes the outlet eddy flow form thin water smoke fast.Thick water droplet produces negative pressure in the air around when it passes air, this negative pressure has in conical centre along with the effect of thick atomized water carrying microatomization water.Therefore, microatomization water also obtains long range.But owing to need on the next door machining center hole and irregular trochoid spiral groove simultaneously, and requirement cooperates with nozzle chamber walls and forms the eddy flow chamber, thereby manufacturing process relative complex, product cost are higher relatively, and the reliability of properties of product and uniformity are not easy assurance.
Therefore, development is a kind of can be used to spray the market in urgent need that multifunctional fire extinguishing spray gun that trickle mist fire-fighting again can the spray foam fire extinguishing becomes fire-fighting equipment.For this reason, many manufacturers and knowledgeable people research and develop, but do not have ideal method to solve the problems referred to above so far as yet.
Summary of the invention
For solving the problems referred to above that existing fire extinguishing spray gun exists, the purpose of the invention provides the rotor axis switching bi-functional spray gun that a kind of simple and reasonable, stable and reliable for performance, far firing range, water smoke and foam can both use.
The invention addresses the above problem the technical scheme that is adopted: it comprises gun barrel, the small of the stock, switch knob and rifle head assembly, described rifle head assembly comprises rifle head, liquid slanting-hole flow-guiding plate, foams mix cavity, cavity lid, hollow rotating shaft, liquid slanting-hole flow-guiding plate is fixed on an end of foams mix cavity by the rifle head, and the cavity lid is fixed on the foams mix cavity other end; Hollow rotating shaft is arranged on cavity rotationally and covers, and hollow rotating shaft has atomized liquid passage and foam liquid passage; The nebulization channel that the foams mix cavity has air hybrid chamber and liquid temporary storage cavity and the foam passage that communicates with the air hybrid chamber and communicates with the liquid temporary storage cavity; Cavity covers and is provided with the air admission hole that communicates with the air hybrid chamber; The rifle head is provided with foam jet and a plurality of eddy flows chamber reaches the atomizer that communicates with center, eddy flow chamber; Liquid slanting-hole flow-guiding plate is provided with and corresponding slanting-hole flow-guiding unit, eddy flow chamber; Form atomization jetting device by atomized liquid passage, nebulization channel, liquid temporary storage cavity, slanting-hole flow-guiding unit, eddy flow chamber and atomizer; Form apparatus for spray of foam by foam liquid passage, air hybrid chamber, foam passage and foam jet.
As the further feature of the invention, the import of described foam liquid passage and atomized liquid passage is arranged on the same cross section of hollow rotating shaft, and is mutually certain included angle.
As the further feature of the invention, described hollow rotating shaft is provided with and rotates the handle that hollow rotating shaft realizes that atomized spray and foam jet function are switched.
As the further feature of the invention, described atomized liquid passage links to each other with nebulization channel with liquid line between the foams mix cavity by being connected cavity lid.
Further feature as the invention, described slanting-hole flow-guiding unit combines by at least more than one inclined hole is uniform, the corresponding layout in the plane coordinates position of inclined hole with the eddy flow chamber, inclined hole cooperates the formation swirling flow unit with the eddy flow cavity wall, liquid is by all flowing into the eddy flow chamber behind the inclined hole, inclined hole becomes the above angle of 5 degree with liquid slanting-hole flow-guiding board plane.
As the further feature of the invention, any one atomizer discharge area of described rifle head is less than all inclined hole discharge area sums of any one group of slanting-hole flow-guiding unit.
As the further feature of the invention, described atomizer circular distribution is at the end face of rifle head, and foam jet is arranged on the center of circle.
As the further feature of the invention, be respectively equipped with locating hole on described rifle head and the liquid slanting-hole flow-guiding plate, locate by the alignment pin that is installed on the locating hole between rifle head and the liquid slanting-hole flow-guiding plate.
After said structure is adopted in the invention, can be by the operation handle, the rotation hollow rotating shaft is selected atomized liquid passage or foam liquid passage, can select adopt the fire extinguishing of classifying of the atomized spray function of spray gun or foam jet function according to fire cause class, thereby make spray gun have better generality and the effect of putting out a fire; Also have the following advantages simultaneously: the one, simple in structure, easy to process, working stability is reliable, and cost is moderate, is easy to carry; The 2nd, just can make the water microatomization by the mesolow more than the 1Mpa, the diameter of thin water smoke can reach 7～100 μ m, and range can reach 7 to 11 meters, and the foam range can reach 10 to 15 meters; The 3rd, adopt this spray gun can effectively put out A, B, C class fire and other efficient thin water mist spray, as sprinklings such as epidemic prevention, sanitation and hygiene; The 4th, little, the saving energy of power, operating cost is low.
Description of drawings
Assembly structure schematic diagram when Fig. 1 is the invention atomized spray function.
Fig. 2 is the assembly structure schematic diagram of the invention rifle head assembly.
Fig. 3 is the upward view of the invention rifle head.
Fig. 4 is the structural representation of the invention rifle head.
Fig. 5 is the vertical view of the invention liquid slanting-hole flow-guiding plate.
Fig. 6 is the structural representation of the invention liquid slanting-hole flow-guiding plate.
Fig. 7 is the upward view of the invention foams mix cavity.
Fig. 8 is the structural representation of the invention foams mix cavity.
Fig. 9 is the vertical view of the invention foams mix cavity.
Figure 10 is the upward view of the invention cavity lid.
Figure 11 is the structural representation of the invention cavity lid.
Figure 12 is the structural representation of the invention hollow rotating shaft.
Figure 13 is the A-A sectional structure schematic diagram of Figure 12.
Assembly structure schematic diagram when Figure 14 is the invention foam jet function.
The specific embodiment
Shown in Fig. 1 to 13, be the specific embodiments of the invention rotor axis switching bi-functional spray gun.It comprises gun barrel 9, the small of the stock 10, switch knob 101 and rifle head assembly, described rifle head assembly comprises rifle head 1, liquid slanting-hole flow-guiding plate 2, foams mix cavity 4, cavity lid 6, hollow rotating shaft 7, liquid slanting-hole flow-guiding plate 2 is fixed on an end of foams mix cavity 4 by rifle head 1, be provided with sealing ring 14 between rifle head 1 and the foams mix cavity 4, cavity lid 6 is fixed on foams mix cavity 4 other ends; Hollow rotating shaft 7 is arranged on the cavity lid 6 rotationally by sealing ring 71, be provided with capping 72 at hollow rotating shaft 7 two ends, end at hollow rotating shaft 7 is provided with the handle 8 that rotates hollow rotating shaft 7 realization atomized sprays and the switching of foam jet function, cavity lid 6 is provided with liquid-inlet 64, atomized liquid outlet 61, foam liquid outlet 62 and the air admission hole 63 that communicates with air hybrid chamber 44, hollow rotating shaft 7 has atomized liquid passage 74 and foam liquid passage 75, the import of foam liquid passage 75 and atomized liquid passage 74 is arranged on the same cross section of hollow rotating shaft 7, and be mutually 90 the degree angles, the liquid-inlet 64 of cavity lid 6 is corresponding with 74 imports of atomized liquid passage and 75 imports of foam liquid passage respectively, atomized liquid passage 74 outlet matches to merge with atomized liquid outlet 61 and is provided with sealing ring, and 75 outlets of foam liquid passage and foam liquid go out 62 and match to merge and be provided with sealing gasket 73; The nebulization channel 41 that foams mix cavity 4 has air hybrid chamber 44 and liquid temporary storage cavity 43 and the foam passage 42 that communicates with air hybrid chamber 44 and communicates with liquid temporary storage cavity 43, atomized liquid passage 74 outlets of hollow rotating shaft 7 link to each other with nebulization channel 41 with liquid line 5 between the foams mix cavity 4 by being connected cavity lid 6; Rifle head 1 is provided with foam jet 13 and a plurality of eddy flows chamber 11 reaches the atomizer 12 that communicates with 11 centers, eddy flow chamber, and atomizer 12 circular distribution are at the end face of rifle head 1, and foam jet 13 is arranged on the center of circle, and foam jet 13 communicates with foam passage 42; Liquid slanting-hole flow-guiding plate 2 is provided with and 11 corresponding slanting-hole flow-guiding unit 22, eddy flow chamber, slanting-hole flow-guiding unit 22 is by at least more than one inclined hole 21 uniform combining, present embodiment is by 21 uniform compositions of four inclined holes, the plane coordinates position of inclined hole 21 and eddy flow chamber 11 corresponding layouts, inclined hole 21 cooperates the formation swirling flow unit with eddy flow chamber 11 inwalls, liquid all flows into eddy flow chamber 11 by inclined hole 21 backs, inclined hole 21 becomes the above angle of 5 degree with liquid slanting-hole flow-guiding plate 2 planes, be respectively equipped with locating hole 15 on rifle head 1 and the liquid slanting-hole flow-guiding plate 2,23, between rifle head 1 and the liquid slanting-hole flow-guiding plate 2 by being installed in locating hole 15, alignment pin 3 location on 23; Any one atomizer 12 discharge area of rifle head 1 are less than all inclined hole 21 discharge area sums of any one group of slanting-hole flow-guiding unit 22; Form atomization jetting device by atomized liquid passage 74, nebulization channel 41, liquid temporary storage cavity 43, slanting-hole flow-guiding unit 22, eddy flow chamber 11 and atomizer 12; Form apparatus for spray of foam by foam liquid passage 75, air hybrid chamber 44, foam passage 42 and foam jet 13.
The course of work of the invention is as follows: when the invention is used for the atomized spray function, as shown in Figure 1, the liquid of cavity lid 6 advances 64 and communicates with 74 imports of atomized liquid passage, the liquid of cavity lid 6 advances 64 and is in sealing state with 75 imports of foam liquid passage, the foam jet function is inoperative, the liquid that has pressure is from gun barrel 9 input atomized liquid passages 74, then by liquid line 5, nebulization channel 41 enters liquid temporary storage cavity 43, the liquid of liquid temporary storage cavity 43 is injected eddy flow chamber 11 inwalls by four inclined holes, 21 backs of slanting-hole flow-guiding unit 22 from tangential direction and is formed eddy flow and extruding, spray at a high speed and form thin water smoke from atomizer 12, thus the purpose that reaches fire extinguishing or spray thin water smoke.When mesolow more than 1Mpa of the pressure of liquid, drop diameter can be about 7～100 μ m, and range can reach 7 to 11 meters.
When the invention need be put out category-B fluid fire, rotate handle 8, make hollow rotating shaft 7 rotation an angle of 90 degrees degree, the invention is the foam jet functional status, as shown in figure 14, at this moment, the liquid of cavity lid 6 advances 64 and communicates with 75 imports of foam liquid passage, the liquid of cavity lid 6 advances 64 and is in sealing state with 74 imports of atomized liquid passage, the atomized spray function is inoperative, the foam liquid that has pressure is from gun barrel 9 input foam liquid passages 75, go out 62 by the foam liquid on the cavity lid 6 again, air hybrid chamber 44 enters foam passage 42, makes air hybrid chamber 44 generation negative pressure and the air admission hole 63 from cavity lid 6 suck air, sprays foam at a high speed from atomizer 12 then, the foam range can reach 10 to 15 meters, thereby reaches the purpose of putting out category-B fluid fire.
Claims (8)
1. rotor axis switching bi-functional spray gun, comprise gun barrel (9), the small of the stock (10), switch knob (101) and rifle head assembly, it is characterized in that: described rifle head assembly comprises rifle head (1), liquid slanting-hole flow-guiding plate (2), foams mix cavity (4), cavity lid (6), hollow rotating shaft (7), liquid slanting-hole flow-guiding plate (2) is fixed on an end of foams mix cavity (4) by rifle head (1), and cavity lid (6) is fixed on foams mix cavity (4) other end; Hollow rotating shaft (7) is arranged on the cavity lid (6) rotationally, and hollow rotating shaft (7) has atomized liquid passage (74) and foam liquid passage (75); The nebulization channel (41) that foams mix cavity (4) has air hybrid chamber (44) and liquid temporary storage cavity (43) and the foam passage (42) that communicates with air hybrid chamber (44) and communicates with liquid temporary storage cavity (43); Cavity lid (6) is provided with the air admission hole (63) that communicates with air hybrid chamber (44); Rifle head (1) is provided with foam jet (13) and a plurality of eddy flows chamber (11) reaches the atomizer (12) that communicates with center, eddy flow chamber (11); Liquid slanting-hole flow-guiding plate (2) is provided with and corresponding slanting-hole flow-guiding unit, eddy flow chamber (11) (22); Form atomization jetting device by atomized liquid passage (74), nebulization channel (41), liquid temporary storage cavity (43), slanting-hole flow-guiding unit (22), eddy flow chamber (11) and atomizer (12); Form apparatus for spray of foam by foam liquid passage (75), air hybrid chamber (44), foam passage (42) and foam jet (13).
2. rotor axis switching bi-functional spray gun according to claim 1 is characterized in that: the import of described foam liquid passage (75) and atomized liquid passage (74) is arranged on the same cross section of hollow rotating shaft (7), and is mutually certain included angle.
3. rotor axis switching bi-functional spray gun according to claim 1 and 2 is characterized in that: described hollow rotating shaft (7) is provided with and rotates the handle (8) that hollow rotating shaft (7) realizes that atomized spray and foam jet function are switched.
4. rotor axis switching bi-functional spray gun according to claim 3 is characterized in that: described atomized liquid passage (74) links to each other with nebulization channel (41) with liquid line (5) between the foams mix cavity (4) by being connected cavity lid (6).
5. rotor axis switching bi-functional spray gun according to claim 4, it is characterized in that: described slanting-hole flow-guiding unit (22) is by uniform the combining of an above inclined hole (21), the plane coordinates position of inclined hole (21) and eddy flow chamber (11) corresponding layout, inclined hole (21) cooperates the formation swirling flow unit with eddy flow chamber (11) inwall, liquid all flows into eddy flow chamber (11) by inclined hole (21) back, and inclined hole (21) becomes the above angle of 5 degree with liquid slanting-hole flow-guiding plate (2) plane.
6. rotor axis switching bi-functional spray gun according to claim 5 is characterized in that: any one atomizer (12) discharge area of described rifle head (1) is less than all inclined holes (21) discharge area sum of any one group of slanting-hole flow-guiding unit (22).
7. rotor axis switching bi-functional spray gun according to claim 6 is characterized in that: described atomizer (12) circular distribution is at the end face of rifle head (1), and foam jet (13) is arranged on the center of circle.
8. rotor axis switching bi-functional spray gun according to claim 7, it is characterized in that: be respectively equipped with locating hole (15,23) on described rifle head (1) and the liquid slanting-hole flow-guiding plate (2), locate by the alignment pin (3) that is installed on the locating hole (15,23) between rifle head (1) and the liquid slanting-hole flow-guiding plate (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100624989A CN101306233B (en) | 2008-06-14 | 2008-06-14 | Rotor axis switching bi-functional spray gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100624989A CN101306233B (en) | 2008-06-14 | 2008-06-14 | Rotor axis switching bi-functional spray gun |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101306233A CN101306233A (en) | 2008-11-19 |
| CN101306233B true CN101306233B (en) | 2011-07-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100624989A Expired - Fee Related CN101306233B (en) | 2008-06-14 | 2008-06-14 | Rotor axis switching bi-functional spray gun |
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| Country | Link |
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| CN (1) | CN101306233B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101574564B (en) * | 2009-05-06 | 2011-08-17 | 河北工业大学 | Portable water mist fire extinguisher |
| CN102107055B (en) * | 2011-02-22 | 2012-08-29 | 广东联塑科技实业有限公司 | Water gun for fire protection |
| CN111013847B (en) * | 2019-12-10 | 2021-01-01 | 江苏浪势塑粉有限公司 | Spray gun device of coating spraying machine with low splashing rate |
| CN111135513B (en) * | 2019-12-31 | 2021-05-07 | 江苏湃森科技有限公司 | Regulation type foam injection apparatus |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5275243A (en) * | 1991-03-21 | 1994-01-04 | Cca, Inc. | Dry powder and liquid method and apparatus for extinguishing fire |
| CN1282264A (en) * | 1997-12-19 | 2001-01-31 | 快速消防公司 | A fire extinguishing device |
| DE20120199U1 (en) * | 2001-12-13 | 2002-04-25 | Widenmann Max Armaturen | Locking mechanism, in particular for fixing a foam attachment to a jet pipe for fire-fighting purposes |
| CN1852769A (en) * | 2003-08-21 | 2006-10-25 | Vid公司 | A liquid atomizer unit having a double nozzle system for fire extinction |
| CN2875506Y (en) * | 2006-03-14 | 2007-03-07 | 王永利 | Multi-functional fire-gun by sprying water |
| CN201208463Y (en) * | 2008-06-14 | 2009-03-18 | 胡济荣 | Rotor axis switching bifunctional spray gun |
-
2008
- 2008-06-14 CN CN2008100624989A patent/CN101306233B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5275243A (en) * | 1991-03-21 | 1994-01-04 | Cca, Inc. | Dry powder and liquid method and apparatus for extinguishing fire |
| CN1282264A (en) * | 1997-12-19 | 2001-01-31 | 快速消防公司 | A fire extinguishing device |
| DE20120199U1 (en) * | 2001-12-13 | 2002-04-25 | Widenmann Max Armaturen | Locking mechanism, in particular for fixing a foam attachment to a jet pipe for fire-fighting purposes |
| CN1852769A (en) * | 2003-08-21 | 2006-10-25 | Vid公司 | A liquid atomizer unit having a double nozzle system for fire extinction |
| CN2875506Y (en) * | 2006-03-14 | 2007-03-07 | 王永利 | Multi-functional fire-gun by sprying water |
| CN201208463Y (en) * | 2008-06-14 | 2009-03-18 | 胡济荣 | Rotor axis switching bifunctional spray gun |
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| CN101306233A (en) | 2008-11-19 |
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Assignee: Xingyue Group Co., Ltd. Assignor: Hu Jirong Contract record no.: 2012330000185 Denomination of invention: Rotor axis switching bi-functional spray gun Granted publication date: 20110706 License type: Exclusive License Open date: 20081119 Record date: 20120416 |
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