CN201177197Y

CN201177197Y - Fireproof embedding lamp

Info

Publication number: CN201177197Y
Application number: CN 200820057161
Authority: CN
Inventors: 王海
Original assignee: SHANGHAI SEALITE INTERNATIONAL TRADE CO Ltd
Current assignee: SHANGHAI SEALITE INTERNATIONAL TRADE CO Ltd
Priority date: 2008-04-11
Filing date: 2008-04-11
Publication date: 2009-01-07
Anticipated expiration: 2018-04-11

Abstract

The utility model relates to a fireproof embedded lamp, comprising a shell which is provided with an opening on the lower end and a plurality of radiating holes on the upper end. The embedded lamp is provided with a fireproof insulating device which comprises a sealing element and a driving device, wherein the sealing element is rotatablely arranged close to the radiating holes of the shell, and is provided with a plurality of shelter parts respectively corresponding to the plurality of the radiating holes on the shell; the driving device comprises a rotary ferrule connected with the sealing element, a fixed leg connected with the shell, a colliquable locking element which fixes the relative position of the rotary ferrule and the fixed leg, and a drive spring positioned between the rotary ferrule and the fixed leg, wherein the colliquable locking element is assembled to ensure that the relative position of the rotary ferrule and the fixed leg is fixed on the position on which the shelter parts of the sealing element do not shelter the radiating holes of the shell, so that when the colliquable locking element is melted at a high temperature, and the driving device drives the rotary ferrule to rotate and drive the sealing element to rotate to the position on which the shelter parts of the sealing element shelter the radiating holes of the shell, thereby thermal diffusion can be effectively prevented to realize the fireproof effect.

Description

Fireproofing embedding lamp

Technical field

The utility model relates to a kind of overhead illumination Recessed light, refers to a kind of overhead illumination Recessed light that is provided with the fire-proof and thermal-insulation device especially.

Background technology

Recessed light is a kind of lighting that can be embedded in the ceiling perforation, its characteristics with concealed setting can fully satisfy the requirement of indoor decoration space utilization, so applied to room lighting widely at present, become the new lover of amusement, leisure place even office space especially.But; Recessed light is in the perforation that is embedded on the ceiling; so have the bad shortcoming of congenital heat radiation; along with lighting hours prolongs; temperature raises, and will inevitably influence the service life of lamp, in order to overcome this defective; usually can design louvre on the Recessed light lamp bucket shell, during illumination by can in time reducing temperature in the lamp with the cold and hot convection current in the external world.

Yet, general Recessed light is to be drilled with a perforation on ceiling when mounted, it is embedded in the perforation of ceiling then, during use, this kind design makes the ceiling that has the fire-proof and thermal-insulation effect originally breach occur, if unfortunate breaking out of fire, high temperature air will inevitably rise and louvre by Recessed light enters the space of ceiling top, so flare is spread to bigger zone by the ceiling superjacent air space, especially be that the floor power supply is set on ceiling, supply water, air feed, during the space of heating circuit and pipeline, may burn all these type of facilities, cause catastrophic consequence.

Therefore, be necessary to design and a kind ofly can either guarantee Recessed light heat radiation requirement in use, can when running into fire, avoid the flame expansion to cause bigger disaster to external diffusion by effective intercept heat heat radiating via hole again, play the Recessed light of fire-proof and thermal-insulation effect.

The utility model content

The purpose of this utility model is to provide a kind of fire prevention illumination Recessed light, the housing and the fire-proof and thermal-insulation device that comprise illuminator, its housing is provided with louvre, good thermolysis can be brought into play, during breaking out of fire, when reaching uniform temperature in the normal use of Recessed light, can see through the fire-proof and thermal-insulation device, cover louvre effectively, the intercept heat heat radiating via hole is to external diffusion, to reach the purpose that prevents fire spread.

For reaching above-mentioned utility model purpose, the utility model provides a kind of Recessed light, has one and covers on the outer housing of bulb, its lower ending opening and the upper end is provided with a plurality of louvres, it is characterized in that described Recessed light is provided with a fire-proof and thermal-insulation device, described fire-proof and thermal-insulation device comprises:

One closure elements, it rotatably is located at the position near the housing louvre, and is provided with a plurality of occlusion parts that correspond respectively to a plurality of louvres on the housing;

One drive unit, it has a swivel ferrule that is connected in described closure elements, one is connected in the fixed leg of described housing, the meltable locking member of one fixing described swivel ferrule and described moving part of described fixed leg and fixed part relative position, and a described swivel ferrule of driving between described swivel ferrule and described fixed leg is with respect to the actuator of described fixed leg rotation; Wherein

Described closure elements is provided with the clip shutter that connects swivel ferrule, is provided with the clamping groove of the clip shutter that is used to hold closure elements accordingly on described swivel ferrule;

Described fixed leg spiral shell is located at the standing screw outside, and this standing screw passes the centre bore of fixed leg, closure elements and housing upper surface, and is fixedly connected on housing by the nut at two ends;

Described actuator is the coil spring that is arranged between described fixed leg and the described swivel ferrule, its the inner is connected in fixed leg, the outer end is connected in swivel ferrule, and when the relative position of described swivel ferrule and described fixed leg by described meltable locking member fixedly the time, this coil spring is in the state that keeps elastic-restoring force;

In use, described meltable locking member is assembled in the relative position that makes described swivel ferrule and described fixed leg and is fixed on and makes described closure elements be in the not position of shielding casing louvre of its occlusion part, and when described meltable locking member melts, described drive unit orders about the swivel ferrule rotation and drives the position that described closure elements turns to its occlusion part shielding casing louvre, thereby intercept heat to external diffusion, realizes the fire safety effect through the louvre of housing effectively.

Further, one inner splint is located between the lower end nut of drive unit lower end and standing screw in the housing, be connected with housing by standing screw, be provided with a plurality of louvres in this inner splint, and be provided with the lockhole of a lockhole corresponding to the swivel ferrule bottom, fixing wherein for meltable locking member, the relative position with locking swivel ferrule and fixed leg is in closure elements and housing and makes the housing louvre not be closed the position that the element occlusion part covers; And, also be provided with locating hole on the described inner splint, be provided with relative locating hole in the housing upper surface accordingly, the confession bolt wears the locating hole by described inner splint and housing upper surface respectively.

Description of drawings

Fig. 1 is the cutaway view according to fireproofing embedding lamp of the present utility model;

Fig. 2 is the three-dimensional exploded view according to the embodiment of the fire-proof and thermal-insulation device of fireproofing embedding lamp of the present utility model;

Position when the closure elements that the schematic diagram of Fig. 3 has been described the Recessed light fire-proof and thermal-insulation device of Fig. 2 is locked to shielding casing louvre not;

Position when the closure elements that the schematic diagram of Fig. 4 has been described the Recessed light fire-proof and thermal-insulation device of Fig. 2 is in the shielding casing louvre after drive unit moves; And

Fig. 5 is the three-dimensional exploded view according to second embodiment of the fire-proof and thermal-insulation device of fireproofing embedding lamp of the present utility model.

The specific embodiment

See also the cutaway view of fireproofing embedding lamp shown in Figure 1, comprise that according to fireproofing embedding lamp of the present utility model panel assembly 30, that housing 20, that a bulb 10, covers on bulb 10 outsides is assembled in the open lower end of housing 20 is located at the geometrical clamp 40 and a fire-proof and thermal-insulation device 50 in housing 20 outsides.

Wherein, the housing 20 of bulb 10 is metal cylinder shaped lamp bucket, its lower ending opening, and the upper surface is provided with a centre bore 21, is provided with a plurality of louvres 22 (referring to Fig. 2) and a pair of locating hole 23 around centre bore 21.

Panel assembly 30 comprises the concordant substantially inner ring in bottom surface 31, centre circle 32 and

outer ring

33,33 cross sections, outer ring are L-shaped, are fixed in the open lower end of housing 20, and centre circle 32 is articulated in 33 inboards, outer ring, inner ring 31 is fixed in centre circle 32 inboards, is used for supporting and fixed light source lamp 10.

Geometrical clamp 40 is a spring clip, be used for Recessed light lamp bucket is fixed in the perforation on the ceiling, the edge of ceiling perforation by clamping between the spring clip of the flange of the outer ring 33 of panel assembly 30 and geometrical clamp 40.

Below with reference to the detailed structural representation of explaining according to the Recessed light fire-proof and thermal-insulation device 50 of a specific embodiment of the present utility model of Fig. 2.As shown in Figure 2, this fire-proof and thermal-insulation device 50 comprises a closure elements 51, a drive unit 52, an inner splint 53, a standing screw 54, a locking member 55 and bolt 56.

Described closure elements 51 is a disc, be provided with near housing 20 upper ends, it is provided with a centre bore 511 corresponding to housing 20 upper surface centre bores 21, around this centre bore 511, be provided with a plurality of louvres 512 corresponding to a plurality of louvres 22 on the housing 20, the a pair of circular arc slotted hole 513 that along the circumferential direction extends, and two clip shutters 514 of projection vertically downward corresponding to the locating hole on the housing 20 23.

Described drive unit 52 is made up of a fixed leg 521, a swivel ferrule 522 and a driving spring 523.Fixed leg 521 spiral shells are located at standing screw 54 outsides, and the upper end of fixed leg 521 is provided with a spring card slot 5211.Standing screw 54 passes the centre bore of inner splint 53, fixed leg 521, closure elements 51 and housing 20 upper surfaces, and is fixedly connected on housing 20 centers by the nut at two ends.This standing screw 54 is hollow, middle electric wire for bulb wear by.Swivel ferrule 522 rotatably is sheathed on the outside of fixed leg 521, and its upper end is provided with two clamping groove 5221 and spring card slots 5223 corresponding to the card washer 514 of closure elements 51, and the base flange of its swivel ferrule 522 is provided with a lockhole 5225.The inner of driving spring 523 is stuck in the draw-in groove 5211 of fixed leg 521 upper ends, and the outer end of driving spring 523 is stuck in the draw-in groove 5223 of swivel ferrule 522 upper ends.

Described inner splint 53 and closure elements 51 are similar to be disc, also be provided with a centre bore 531 accordingly, around centre bore 531, be provided with a plurality of louvres 532 corresponding to a plurality of louvres 22 on the housing 20, a pair of locating hole 533 and a lockhole 535 corresponding to the lockhole on the swivel ferrule 522 5225 corresponding to the locating hole on the housing 20 23.

During assembling, the fixed leg 521 of drive unit 52 is fixed between inner splint 53 and the housing 20 by standing screw 54 and nut, swivel ferrule 522 is sheathed on fixed leg 521 outsides, driving spring 523 the inners are connected in the spring card slot 5211 of fixed leg 521, driving spring 523 outer ends are connected in the spring card slot 5223 of swivel ferrule 522, and swivel ferrule 522 rotated to make lockhole 5225 align with lockhole 535 on the inner splint 53, with locking member 55, an i.e. meltable plastic rivet, the lockhole 535 that passes inner splint 53 inserts in the lockhole 5225 of swivel ferrules 522, thereby swivel ferrule 522 is fixed on make driving spring 523 to keep the position of certain elastic-restoring force.

51 of closure elements are installed in above the drive unit 52, and its clip shutter 514 is fastened in respectively in the clamping groove 5221 of swivel ferrule 522 upper end correspondences.A pair of bolt 56 passes locating hole 533 and the slotted hole 513 of closure elements 51 and the locating hole 23 of housing 20 of inner splint 53 respectively, make inner splint 53 and housing 20 keep orientating as the relation that horizontal direction does not have relative displacement, and the design of the slotted hole 513 of closure elements 51, can allow closure elements 51 to rotate a restricted portion in its horizontal direction, the rotating range of this qualification is the longitudinal extension length of described slotted hole 513.Draw-in groove 5221 positions of swivel ferrule 522 are designed to, the lockhole 5225 that inserts swivel ferrules 522 at plastic rivet 55 is during with the lockhole 535 locking swivel ferrules 522 of inner splint 53, and the closure elements 51 that order is connected in swivel ferrule 522 is in its louvre 512 fully corresponding to the position of the louvre 532 of the louvre 22 of housing 20 and inner splint 53.

When normal the use, please refer to the state diagram of Fig. 3, show among the figure that the louvre 512 of closure elements 51 is fully corresponding with the louvre 22 of housing 20, bolt 56 passes the slotted hole 513 of closure elements 51 also near slotted hole 513 first end positions.The louvre 512 of closure elements 51 overlaps with the position of the louvre 22 of housing 20 in this state, air can circulate by the louvre 532 of the mutual inner splint 53 that aligns, the louvre 512 of closure elements 51 and the louvre 22 of housing 20, thereby plays the effect of heat radiation; Temperature in the lamp bucket raises, for example reach when surpassing 350 °, described plastic rivet 55 is met high temperature melting, this moment, the elastic-restoring force of described driving spring 523 drove described swivel ferrule 522, turn to the position that Fig. 4 represents with described closure elements 51, under this state, described bolt 56 moves on to the relative other end of described slotted hole 513 from first end of slotted hole 513, the louvre 512 of described closure elements 51 staggers with louvre 22 positions of described housing 20, be that occlusion part between the louvre 512 of closure elements 51 covers the louvre 22 of this housing 20 respectively fully, the louvre 22 that the heat of blocking-up housing 20 belows sees through housing 20 is the path of diffusion upwards, thereby avoid the expansion of flame, play the effect of security protection.

Please refer to shown in Figure 5 again, in the feasible embodiment of another kind, housing 20 ' on a plurality of louvres 22 ' be arranged on side, housing 20 ' upper end rather than upper surface, correspondingly, closure elements 51 ' sidewall be provided with a plurality of corresponding to housing 20 ' on a plurality of louvres 22 ' louvre 512 '.The channel direction of its heat radiation and first embodiment are different, but principle is identical.When closure elements 51 ' on louvre 512 ' aligning housing 20 ' on 22 ' time of louvre, air can pass louvre 22 ', 512 ' circulation.And when closure elements 51 ' louvre 512 ' between occlusion part shielding casing 20 ' on 22 ' time of louvre, circulation of air is intercepted, and has avoided thermal diffusion to realize the fire prevention effect.

Be understandable that the detailed description of the foregoing description is in order to set forth and explain principle of the present utility model rather than to the qualification of protection domain of the present utility model.Under the prerequisite that does not break away from purport of the present utility model, one of ordinary skill in the art can be made modification by the understanding to the principle of being instructed of technique scheme on these embodiment bases, changes and changes.Therefore protection domain of the present utility model by appended claim with and be equal to and limit.

Claims

1. Recessed light comprises a lower ending opening and the upper end is provided with the housing of a plurality of louvres, it is characterized in that described Recessed light is provided with a fire-proof and thermal-insulation device, and described fire-proof and thermal-insulation device comprises:

One drive unit, it has a swivel ferrule that is connected in described closure elements, one is connected in the fixed leg of described housing, the meltable locking member of one fixing described swivel ferrule and described moving part of described fixed leg and fixed part relative position, and a described swivel ferrule of driving between described swivel ferrule and described fixed leg is with respect to the actuator of described fixed leg rotation; And

In use, described meltable locking member is assembled in the relative position that makes described swivel ferrule and described fixed leg and is fixed on and makes described closure elements be in the not position of shielding casing louvre of its occlusion part, and when described meltable locking member melted, described drive unit ordered about the swivel ferrule rotation and drives the position that described closure elements turns to its occlusion part shielding casing louvre.

2. Recessed light as claimed in claim 1 is characterized in that: described closure elements is provided with the clip shutter that connects swivel ferrule, is provided with the clamping groove of the clip shutter that is used to hold closure elements accordingly on described swivel ferrule.

3. Recessed light as claimed in claim 1 is characterized in that: described fixed leg spiral shell is located at the standing screw outside, and this standing screw passes the centre bore of fixed leg, closure elements and housing upper surface, and is fixedly connected on housing by the nut at two ends.

4. as the described Recessed light of one of claim 1 to 3, it is characterized in that: described actuator is the coil spring that is arranged between described fixed leg and the described swivel ferrule, its the inner is connected in fixed leg, the outer end is connected in swivel ferrule, and when the relative position of described swivel ferrule and described fixed leg by described meltable locking member fixedly the time, this coil spring is in the state that keeps elastic-restoring force.

5. Recessed light as claimed in claim 4, it is characterized in that: an inner splint is located between the lower end nut of drive unit lower end and standing screw in the housing, be connected with housing by standing screw, be provided with a plurality of louvres in this inner splint, and be provided with the lockhole of a lockhole corresponding to the swivel ferrule bottom, fixing wherein for meltable locking member, the relative position with locking swivel ferrule and fixed leg is in closure elements and housing and makes the housing louvre not be closed the position that the element occlusion part covers.

6. Recessed light as claimed in claim 6 is characterized in that: also be provided with locating hole on the described inner splint, be provided with relative locating hole in the housing upper surface accordingly, the confession bolt wears the locating hole by described inner splint and housing upper surface respectively.