Bulb blast resistance construction and projector
[technical field]
The utility model relates to a kind of blast resistance construction, relates in particular to a kind of bulb blast resistance construction and projector.
[background technology]
The bulb of projector be projector must and also the parts of core.
At present, projector's major part all is to adopt high-pressure sodium lamp, and the spheroid of its wick temperature in work is very high, and pressure is also very big, and the problem of bulb explosion takes place easily.Chip velocity is very fast in the time of the bulb explosion, if the projector that flies out possibly cause personal injury, causes danger.And bulb explosion fragment can be scattered in inner each place of projector, is unfavorable for also being inconvenient to clear up fragment.
[utility model content]
In view of this, be necessary to provide a kind of fly out bulb blast resistance construction of projector of bulb fragment that prevents.
In addition, also be necessary to provide a kind of projector that prevents that the bulb fragment from flying out.
A kind of bulb blast resistance construction is assemblied in the projecting camera light bulb support, is used for the bulb in the said bulb rack is protected; Said bulb comprises reflex housing and is installed in the wick in the said reflex housing, comprises protective cover and protection glass, and said protective cover middle part connects; One end is connected with said reflex housing bright dipping end, offers blow vent on the sidewall of said protective cover, and said protective cover comprises gas-permeable nets; Offer a plurality of bleeder vents on the said gas-permeable nets; Said gas-permeable nets is connected on the sidewall of said protective cover, with said blow vent relatively and seal said blow vent, said protection glass is connected to the other end of said protective cover; Supply bulb light to penetrate, said protection glass, said protective cover and reflex housing surround enclosure space.
Preferably, offer draw-in groove on the sidewall of said protective cover, said gas-permeable nets side forms the card relative with said draw-in groove, and said card snaps in the said draw-in groove, seals said blow vent.
Preferably, the said protective cover funnel-form that is square, an end length of side that is connected with said reflex housing is greater than the length of side of the other end.
Preferably, respectively offer a blow vent on two relative sidewalls of said protective cover, said gas-permeable nets is two, seals two blow vents respectively.
Preferably, said protective cover one end and said reflex housing removably connect.
Preferably, said protective cover one end is held on said reflex housing bright dipping end.
Preferably, the relative dual-side of said protective cover one end respectively is connected with banking stop, and said banking stop both sides all are connected with intermediate plate, said banking stop and said reflex housing bright dipping end butt, and said intermediate plate is clamped the sidewall of said reflex housing.
Preferably, the relative other dual-side of said protective cover one end also is connected with baffle plate, and said baffle plate leans on said reflex housing mutually.
Preferably, said protection glass is the collimation eyeglass, and four jiaos of place's bendings of the said protective cover other end have extended to form catch, said catch and said protection glass butt.
A kind of projector; Comprise bulb, bulb rack and bulb blast resistance construction; Said bulb and bulb blast resistance construction all are assemblied in the said bulb rack, and said bulb comprises reflex housing and be installed in the wick in the said reflex housing that said bulb blast resistance construction is above-mentioned bulb blast resistance construction.
Above-mentioned bulb blast resistance construction and projector, protective cover and cover plate are assemblied in the bulb rack, and protective cover connects reflex housing bright dipping end; Protection glass butt protective cover, protection glass, protective cover and reflex housing surround enclosure space, when bulb generation explosion; Fragment is stopped that by protective cover and protection glass fragment all falls into enclosure space, thereby prevents the fragment projector that flies out; Avoid causing personal injury and cause danger, bulb is protected.Simultaneously, the fragment of bulb explosion can not be scattered in inner each place of projector, and fragment is taken out with the bulb blast resistance construction in replacing bulb, greatly facilitates the cleaning fragment.In addition, adopt gas-permeable nets that bulb is cooled off, can well reach cooling effect, reduced the cost of single-piece portion article simultaneously again, processing is simple, can also reach the inaccessiable size of Mould Machining.
[description of drawings]
Fig. 1 is that the bulb blast resistance construction is assemblied in the STRUCTURE DECOMPOSITION figure in the bulb rack among the embodiment;
Fig. 2 is that bulb blast resistance construction shown in Figure 1 is assemblied in the structure assembly drawing in the bulb rack;
Fig. 3 is the protective roof structure synoptic diagram of bulb blast resistance construction shown in Figure 1.
[embodiment]
Below in conjunction with accompanying drawing, the embodiment of the utility model is described in detail.
Fig. 1 is that the bulb blast resistance construction is assemblied in the STRUCTURE DECOMPOSITION figure in the bulb rack among the embodiment, and Fig. 2 is that bulb blast resistance construction shown in Figure 1 is assemblied in the structure assembly drawing in the bulb rack, and Fig. 3 is the protective roof structure synoptic diagram of bulb blast resistance construction shown in Figure 1.In conjunction with Fig. 1 to Fig. 3, this bulb blast resistance construction is assemblied in the bulb rack 100 of projector, is used for bulb 200 in the bulb rack 100 is protected, and bulb 200 comprises reflex housing 210 and is installed in the wick (figure does not show) in the reflex housing 210.The bulb blast resistance construction comprises protective cover 300 and protection glass 400.Protective cover 300 middle parts connect, and an end is connected with reflex housing 210 bright dipping ends.Protection glass 400 is connected to the other end of protective cover 300, supplies bulb 200 light to penetrate.Protection glass 400, protective cover 300 and reflex housing 210 surround enclosure space, and bulb 200 is protected.
Among this embodiment, bulb rack 100 funnel-form that is square.Reflex housing 210 bright dipping ends are square orifice, and evagination radially.Protective cover 300 funnel-form that is square, an end length of side that is connected with reflex housing 210 is greater than the length of side of the other end.
Offer blow vent 311 on the sidewall 310 of protective cover 300.Protective cover 300 includes gas-permeable nets 320.Gas-permeable nets 320 is connected on the sidewall 310, with blow vent 311 relative and closed vent mouths 311.Gas-permeable nets 320 has a plurality of bleeder vents 321, is convenient to cold air and gets into enclosure space, to bulb 200 heat radiations.
The aperture of bleeder vent 321 can be adjusted, to control the size of the minimum fragment that can fly out.Gas-permeable nets 320 cooling of breathe freely is adopted in the cooling of the 300 pairs of bulbs of protective cover, rather than the employing mould directly (is directly being opened bleeder vent going out bleeder vent 321 on the protective cover 300 on the punch press on protective cover 300; Owing to relate to cooling, the bleeder vent of opening requires closeer, and the Mould Machining difficulty is very big; Scrappage is also very high during production); Thereby more unmanageable part is rejected, can well be reached cooling effect, reduced the cost of single-piece portion article simultaneously again.Simultaneously, gas-permeable nets 320 processing are simple, can cut out out the people's will size as required, obtain the inaccessiable size of Mould Machining.
In preferred embodiment, offer draw-in groove 312 on the sidewall 310 of protective cover 300, gas-permeable nets 320 sides form the card 322 relative with draw-in groove 312.Card 322 snaps in the draw-in groove 312, closed vent mouth 311.Further, respectively offer blow vent 311 on two of protective cover 300 relative sidewalls 310.Blow vent 311 is square.Gas-permeable nets 320 is two, seals two blow vents 311 respectively, is convenient to cross-ventilation.
For making things convenient for protective cover 300 and reflex housing 210 installation and removal, protective cover 300 1 ends and reflex housing 210 removably connect.Among this embodiment, protective cover 300 1 ends are held on reflex housing 210 bright dipping ends.The dual-side that protective cover 300 1 ends are relative respectively is connected with banking stop 330.Banking stop 330 both sides all are connected with intermediate plate 340.Banking stop 330 and reflex housing 210 bright dipping end butts, intermediate plate 340 is clamped the sidewall of reflex housing 210, because reflex housing 210 bright dipping ends evagination radially, thereby make protective cover 300 stable holding in reflex housing 210 bright dipping ends.In preferred embodiment, banking stop 330 is the bent sheet of L type.Intermediate plate 340 and protective cover 300 four jiaos are relative, are and banking stop 330 L type in the same way.
Further, move for preventing protective cover 300, the other dual-side that protective cover 300 1 ends are relative also is connected with baffle plate 350.Baffle plate 350 leans on reflex housing 210 mutually, prevents that protective cover 300 from moving.
Protection glass 400 is the collimation eyeglass.Among this embodiment, four jiaos of place's bendings of protective cover 300 other ends extend to form catch 360.Catch 360 and protection glass 400 butts make that protection glass 400 can butt protective cover 300 other ends in bulb rack 100.
This bulb blast resistance construction in use; Earlier protective cover 300 and protection glass 400 are assemblied in the bulb rack 100; Protective cover 300 1 ends are clamped in reflex housing 210 bright dipping ends; Protection glass 400 butt protective covers 300, after bulb rack 100 connected, protection glass 400, protective cover 300 and reflex housing 210 surrounded enclosure space.When the wick generation explosion of bulb 200, fragment is stopped that by protective cover 300 and protection glass 400 fragment all falls into enclosure space, thereby prevents the fragment projector that flies out, and avoids causing personal injury and danger, and bulb 200 is protected.And the fragment of bulb 200 explosions can not be scattered in inner each place of projector, and fragment is taken out with the bulb blast resistance construction when bulb 200 is changed, greatly facilitates the cleaning fragment.
In addition, a kind of projector is provided also, comprises bulb, bulb rack and bulb blast resistance construction.Bulb and bulb blast resistance construction all are assemblied in the bulb rack, and bulb comprises reflex housing and be installed in the wick in the reflex housing that the bulb blast resistance construction is above-mentioned bulb blast resistance construction.
Above-mentioned bulb blast resistance construction and projector, protective cover and cover plate are assemblied in the bulb rack, and protective cover connects reflex housing bright dipping end; Protection glass butt protective cover, protection glass, protective cover and reflex housing surround enclosure space, when bulb generation explosion; Fragment is stopped that by protective cover and protection glass fragment all falls into enclosure space, thereby prevents the fragment projector that flies out; Avoid causing personal injury and cause danger, bulb is protected.Simultaneously, the fragment of bulb explosion can not be scattered in inner each place of projector, and fragment is taken out with the bulb blast resistance construction in replacing bulb, greatly facilitates the cleaning fragment.In addition, adopt gas-permeable nets that bulb is cooled off, can well reach cooling effect, reduced the cost of single-piece portion article simultaneously again, processing is simple, can also reach the inaccessiable size of Mould Machining.
The above embodiment has only expressed several kinds of embodiments of the utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model claim.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the utility model design, can also make some distortion and improvement, these all belong to the protection domain of the utility model.Therefore, the protection domain of the utility model patent should be as the criterion with accompanying claims.