CN202904805U - Spot-type temperature-sensitive fire detector - Google Patents
Spot-type temperature-sensitive fire detector Download PDFInfo
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- CN202904805U CN202904805U CN 201220578071 CN201220578071U CN202904805U CN 202904805 U CN202904805 U CN 202904805U CN 201220578071 CN201220578071 CN 201220578071 CN 201220578071 U CN201220578071 U CN 201220578071U CN 202904805 U CN202904805 U CN 202904805U
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Abstract
The utility model relates to a spot-type temperature-sensitive fire detector. The spot-type temperature-sensitive fire detector comprises a housing and a circuit board arranged inside the housing, wherein a thermistor and light-emitting diode are arranged on the circuit board; a light guide pillar and a plate-shaped middle fastener are arranged inside the housing; the housing is composed of a base, an annular middle cover and an upper cover which are sequentially connected, and an outer contour formed by the base, the annular middle cover and the upper cover has a shape of semi truncated sphere; the upper cover is arranged on the top of the semi truncated sphere, the middle fastener is clamped in the annular middle cover, and the circuit board is clamped on the middle fastener; the surface of a light-emitting part of the light-emitting diode faces towards the upper cover; the light guide pillar has a cylinder bended structure, one end of the light guide pillar faces towards and is close to the light-emitting part of the light-emitting diode, and the other end of the light guide pillar is bended to the top of the upper cover along the arc of the upper cover, corresponding to an annular transparent structure arranged on the upper cover; and a tip of the end of the light guide pillar which is bended along the arc of the upper cover is bended back such that the light transmission directions of the tips of the two ends of the light guide pillar are same. With the spot-type temperature-sensitive fire detector provided by the utility model, the lighting display effect is improved, the mounting process is simplified and the reliability is improved.
Description
Technical field
The utility model relates to the fire detecting and alarm technical field, particularly a kind of novel point type heat fire detector.
Background technology
Intelligent development along with modern architecture, the combustibles such as interior of building electrical equipment or finishing material increase, there is potential safety hazard, fire alarm installation becomes the indispensable safety installations of heavy construction and public place day by day, in case breaking out of fire just can be reported to the police in advance, fire was eliminated in the starting stage.The normal fire alarm installation that adopts is point type heat fire detector in the fire protection sector at present.In existing point type heat fire detector, being used for the light-guiding pillar of luminescence display adopts the mode of right cylinder perpendicular circuit board or adopts 90 degree refraction angle forms to be installed in top or the side of whole point type heat fire detector, aesthetic measure is not enough, display effect is poor, and light conduction efficient, Assembling Production efficient and maintenance efficiency are all lower; And make in a large number in the package assembly of point type heat fire detector and be screwed, connect as generally adopting the circuit board screw, use sunk screw or screw assemblies etc., increased cost, reduced manufacturing production efficiency; In addition, do not have waterproof construction in the existing point type heat fire detector, meet with and to cause the circuit board immersion to lose efficacy when water drenches, thereby cause the serious consequence that fire alarm installation lost efficacy.
The utility model content
The problem that the utility model exists at design and the detector integral assembling structure of light-guiding pillar for existing point type heat fire detector, a kind of novel point type heat fire detector is provided, can improve the luminescence display effect, simplify mounting process, reduced manufacturing cost and improved unfailing performance.
The technical solution of the utility model is as follows:
A kind of point type heat fire detector, the circuit board that comprises shell and enclosure, be provided with thermistor and light emitting diode on the described circuit board, it is characterized in that, described enclosure is provided with light-guiding pillar and tabular middle button, described shell comprises the base that connects successively, annular middle cover and loam cake, described base, the exterior contour that annular middle cover and loam cake consist of is half billiard table shape, described loam cake is positioned at the top of half billiard table, described middle button clamping is arranged in the annular middle cover, during being arranged on, described circuit board clamping buckles, the surface of the luminous site of light emitting diode is towards loam cake, described light-guiding pillar is the cylindrical bending structure, one end of light-guiding pillar towards and press close to the luminous site of light emitting diode, the other end of light-guiding pillar along the loam cake bending curvature to loam cake the top and with on to cover the annular permeable structures of setting corresponding, described light-guiding pillar along an end of loam cake bending curvature in the end back bending so that the termination at the two ends of light-guiding pillar conduction direction of light is identical.
Described light-guiding pillar is two cambered surfaces along the surface of the termination of an end of loam cake bending curvature.
Described light-guiding pillar is along the equivalent diameter at the loam cake bending curvature place equivalent diameter less than the termination at the two ends of light-guiding pillar.
Described light-guiding pillar accounts for 1/3 of light-guiding pillar entire length along the length of an end of loam cake bending curvature.
The section configuration of described light-guiding pillar is circle or ellipse or rectangle, and the junction on described rectangle four limits arranges circular arc and connects, and the cylinder surface of described light-guiding pillar is smooth surface.
Described light-guiding pillar one section material or all material along its length is transparent or semitransparent material.
Described middle button arranges the circuit board buckle, and described circuit board buckle arranges two or more, and each circuit board buckle is even or inhomogeneous setting along the edge of circuit board, and the position of circuit board buckle and the edge of circuit board are suitable.
The annular middle cover trip that the inside surface setting of described annular middle cover is radially given prominence to, described annular middle cover trip is two to four and along the even or inhomogeneous setting of the inside surface of annular middle cover, each annular middle cover trip is equidistant apart from the upper surface of annular middle cover, the edge of described middle button arranges middle button clip tenon trough, and the annular middle cover trip that covers setting in described middle button clip tenon trough and the annular is suitable.
Cover rim even circumferential or inhomogeneous two to four annular middle cover clip tenon troughs are set in the described annular, described upper cover rim circumference arranges the loam cake trip that axially stretches out, the annular middle cover clip tenon trough that covers setting in described loam cake trip and the annular is suitable, described loam cake and fixedly clamping of annular middle cover rotation.
The lower surface of described middle button is from the center to the periphery setting that is inclined upwardly, along in the outer circular edge of button distribute the osculum of buckling lower surface in a plurality of running through be set.
Be fixedly installed the decorated disk coaxial with loam cake in the described loam cake, a side of described decorated disk is provided with the light-guiding pillar support slot that supports light-guiding pillar.
Described base and annular middle cover spin and with anti-theft clamping hook, between described anti-theft clamping hook inserted base and the annular middle cover.
Technique effect of the present utility model is as follows:
The base that the point type heat fire detector that the utility model relates to, shell are set to connect successively, annular middle cover and loam cake, shell need not one machine-shaping, has simplified the shell processing technology, the convenient making and maintenance; Middle button clamping is arranged in the annular middle cover, buckles during the circuit board clamping is arranged on, and each parts connects and fixes, assembling is simple, it is fastening not need screw to connect, and has avoided circuit board to adopt the screw connection can affect the problem of production efficiency, can reduce cost and enhances productivity; The surface of loam cake is convenient to the light that light emitting diode sends is passed to towards loam cake in the surface of the luminous site of light emitting diode, and the light that the raising light emitting diode sends imports the ratio of light-guiding pillar into; It is the cylindrical bending structure that light-guiding pillar is set, one end of light-guiding pillar towards and press close to the luminous site of light emitting diode, the other end of light-guiding pillar along the loam cake bending curvature to loam cake the top and with on to cover the permeable structures of setting corresponding, light-guiding pillar along an end of loam cake bending curvature in the end back bending so that the termination at the two ends of light-guiding pillar conduction direction of light is identical, light emitting diode sends couples light to an end in the light-guiding pillar, in the light-guiding pillar inner total reflection, finally conduct to the other end of light-guiding pillar, it is identical with light direction that light-guiding pillar enters light direction; The unique curved design of light-guiding pillar, so that the light that light-guiding pillar can send light emitting diode more flexibly is transmitted to each light guiding points of light-guiding pillar, reflected light can be toward all angles diffusion, can improve light conduction efficient, strengthen light guide effect, improve the light capture rate, avoid the mode of existing light-guiding pillar employing right cylinder perpendicular circuit board or adopted 90 degree refraction angle forms to be installed in the top of whole point type heat fire detector or the variety of issue that bring the side, light-guiding pillar along the loam cake bending curvature to loam cake the top and with on to cover the annular permeable structures of setting corresponding, can realize that 360 luminous degree are visual, display effect is good, reliability is high, strengthen aesthetic measure, fully realized the function that light is reported to the police.
It is two cambered surfaces along the surface of the termination of an end of loam cake bending curvature that light-guiding pillar is set, can further improve light conduction efficient, and light-guiding pillar conducts the light that and scatters out through two cambered surfaces and just formed two light-emitting areas, so the light that the light-guiding pillar of this structure scatters can be observed from different perspectives, and this structure can be so that the inner structure of point type heat fire detector and the requirement of configuration design be further satisfied in the top of by chance pushing up loam cake in this termination that does not affect light-guiding pillar in the situation that light-guiding pillar and loam cake are installed.
Light-guiding pillar is set along the equivalent diameter at the loam cake bending curvature place equivalent diameter less than the termination at the two ends of light-guiding pillar, can further improves light conduction efficient, reduce light loss, strengthen light guide effect.
Light-guiding pillar is set accounts for 1/3 of light-guiding pillar entire length along the length of an end of loam cake bending curvature, be conducive to the installation of the loam cake in light-guiding pillar and the shell, with the structural requirement of match point sensing fire detector better.
The section configuration that light-guiding pillar is set is circle or ellipse or rectangle, is convenient to the manufacturing of light-guiding pillar, can improve light conduction efficient.Circular arc is set in the junction on rectangle four limits connects, the cylinder surface of light-guiding pillar is smooth surface, can further reduce the loss of light-guiding pillar in the light conduction process.
It is transparent or semitransparent material that light-guiding pillar one section material or all material along its length is set, and can realize the scattering of light, improves display effect.
Middle button arranges the circuit board buckle, described circuit board buckle arranges two or more, each circuit board buckle is even or inhomogeneous setting along the edge of circuit board, the position of circuit board buckle and the edge of circuit board are suitable, with the clamping of button in realizing with circuit board, can cancel screw and connect fastening means, simplify mounting process, reduce cost.Each circuit board buckle is even or inhomogeneous setting along the edge of circuit board, is convenient to according to concrete space and position each circuit board buckle is set.
The annular middle cover trip that the inside surface setting of annular middle cover is radially given prominence to, described annular middle cover trip is two to four and along the even or inhomogeneous setting of the inside surface of annular middle cover, each annular middle cover trip is equidistant apart from the upper surface of annular middle cover, the edge of described middle button arranges middle button clip tenon trough, the annular middle cover trip that covers setting in described middle button clip tenon trough and the annular is suitable, to realize the clamping of annular middle cover and middle button, can simplify the mounting process of annular middle cover, reduce cost, the convenient manufacturing and maintenance.Each annular middle cover trip is convenient to according to concrete space and position each annular middle cover trip is set along the even or inhomogeneous setting of the inside surface of annular middle cover.
Cover rim even circumferential or inhomogeneous two to four annular middle cover clip tenon troughs are set in the annular, described upper cover rim circumference arranges the loam cake trip that axially stretches out, the annular middle cover clip tenon trough that covers setting in described loam cake trip and the annular is suitable, described loam cake and fixedly clamping of annular middle cover rotation, can simplify the mounting process of loam cake, reduce cost, the convenient manufacturing and maintenance.Cover rim even circumferential or inhomogeneous annular middle cover clip tenon trough is set in the annular is convenient to according to concrete space and position each annular middle cover clip tenon trough is set.
The lower surface of middle button is from the center to the periphery setting that is inclined upwardly, the outer circular edge of button distributes the osculum of buckling lower surface in a plurality of running through is set in the edge, behind each assembling parts in the utility model, usually be inverted in the roof in the buildings, so should form waterproof inclined-plane and osculum by middle buckle structure, the ponding of inlet point sensing fire detector in the time of can getting rid of fortuitous event prevents circuit board immersion inefficacy, the normal operation of guarantee point sensing fire detector and fire alarm system.
Be fixedly installed the decorated disk coaxial with loam cake in the loam cake, a side of decorated disk is provided with the light-guiding pillar support slot, is convenient to support light-guiding pillar, makes the utility model point type heat fire detector compact conformation, installs more stable.
Base and annular middle cover spin, and anti-theft clamping hook is set, and between anti-theft clamping hook inserted base and the annular middle cover, can increase anti-theft feature according to real needs, and the problem of having avoided the erecting stage easily to lose has been strengthened security.
Point type heat fire detector novel structure of the present utility model, compact to design, good looking appearance, can obviously improve the luminescence display effect of point type heat fire detector, simplify mounting process, enhance productivity, reduce total manufacturing cost, improve waterproof and theftproof performance, remarkable benefit.
Description of drawings
Fig. 1 is the blast structural representation of the utility model point type heat fire detector.
Fig. 2 is the structural representation after the assembling of the utility model point type heat fire detector.
Fig. 3 is the structural representation of the base among Fig. 1.
Fig. 4 is the structural representation of the middle button among Fig. 1.
Fig. 5 is the front view of Fig. 4.
Fig. 6 is the structural representation of the annular middle cover among Fig. 1.
Fig. 7 is the front view of Fig. 6.
Fig. 8 is the structural representation of the decorated disk among Fig. 1.
Fig. 9 is the front view of Fig. 8.
Figure 10 a is the structural representation of the light-guiding pillar among Fig. 1.
Figure 10 b is the structural representation of another angle of Figure 10 a.
Figure 11 is the light path reflection synoptic diagram in the light-guiding pillar shown in Figure 10 a.
Figure 12 is the structural representation of the loam cake among Fig. 1.
Figure 13 is the front view of Figure 12.
Each label lists as follows among the figure:
The 1-loam cake; The 2-light-guiding pillar; The 3-decorated disk; 4-annular middle cover; The 5-thermistor; The 6-circuit board; The 7-contact pin; Detain among the 8-; The 9-contact chip; The 10-base; The 11-light emitting diode; The 12-osculum; 13-circuit board buckle; Detain clip tenon trough among the 14-; 15-annular middle cover trip; 16-annular middle cover clip tenon trough; 17-light-guiding pillar support slot; 18-loam cake trip.
Embodiment
Below in conjunction with accompanying drawing the utility model is described.
The utility model relates to a kind of point type heat fire detector, structural representation after its blast structural representation and the assembling respectively as depicted in figs. 1 and 2, the circuit board 6 that comprises shell and enclosure, light-guiding pillar 2 and tabular middle button 8, shell comprises the base 10 that connects successively, annular middle cover 4 and loam cake 1, base 10, the exterior contour that annular middle cover 4 and loam cake 1 consist of is half billiard table shape, loam cake 1 is positioned at the top of half billiard table, middle button 8 clampings are arranged in the annular middle cover 4, circuit board 6 clampings are arranged on the middle button 8, be provided with thermistor 5 and light emitting diode 11 on the circuit board 6, the surface of the luminous site of light emitting diode 11 is towards loam cake, light-guiding pillar 2 is the cylindrical bending structure, one end of light-guiding pillar 2 towards and press close to the luminous site of light emitting diode 11, the top of the other end of light-guiding pillar 2 along loam cake 1 bending curvature to loam cake 1 is also corresponding with the annular permeable structures that arranges on the loam cake 1.Base 10, annular middle cover 4, loam cake 1 and middle button 8 recommendation engineering plastics are made.Each modular construction of the utility model point type heat fire detector is shown in Fig. 3-13.
Light-guiding pillar 2 is the cylindrical bending structure, shown in Figure 10 a and Figure 10 b, light-guiding pillar 2 along an end of loam cake bending curvature in the end back bending so that the termination at the two ends of light-guiding pillar 2 conduction direction of light is identical.It is two cambered surfaces along the surface of the termination of an end of loam cake bending curvature that light-guiding pillar 2 preferably is set, and these two cambered surfaces can be distributed in the both side surface of termination.Among Figure 10 a, the light entrance end equivalent diameter of light-guiding pillar is R1, and light exit end equivalent diameter is R2, is R3 along the equivalent diameter at loam cake bending curvature place, the offset distance of light-guiding pillar curved design is R4, be that the central shaft of light-guiding pillar light entrance and outlet is apart from being R4, for improving the conduction efficiency of light, the minimizing light loss, strengthen light guide effect, light-guiding pillar can be set along the equivalent diameter at the loam cake bending curvature place equivalent diameter less than the termination at the two ends of light-guiding pillar, i.e. R3＜R1, R3＜R2.In addition, the degree of crook of light-guiding pillar 2 is that the loam cake 1 in the shell outside with it is complementary, the angle of bend of light-guiding pillar 2 can be arranged on 20 degree between 70 degree, and the offset distance that the light-guiding pillar curved design can be set such as Figure 10 a is equivalent diameter R1 and the R2 of the termination at the R4 two ends that are slightly larger than light-guiding pillar.
Figure 11 is the light path reflection synoptic diagram in the light-guiding pillar, the light emitting diode 11 preferred paster LEDs that adopt, one end of light-guiding pillar 2 is pressed close to paster LED, the light that paster LED sends is coupled to an end of light-guiding pillar 2, and in light-guiding pillar 2 interior transmission, each light path transfers to the other end of light-guiding pillar 2 all through the above reflection of twice or twice, thereby the light that scatters from two cambered surfaces of the outlet of light-guiding pillar penetrates with at random angle and forms an extremely wide-angle range of exposures.
The for the benefit of installation between light-guiding pillar 2 and the loam cake 1, simultaneously so that light-guiding pillar crooked radian and loam cake radian better mate, light-guiding pillar 2 is set accounts for 1/3 of light-guiding pillar 2 entire length along the length of an end of the bending curvature of loam cake 1, namely the cylindrical section of light-guiding pillar accounts for 2/3, and sweep accounts for 1/3.The section configuration of light-guiding pillar 2 is preferably circle or ellipse or rectangle, and when its section configuration was rectangle, the junction on rectangle four limits arranged circular arc and connects, and the cylinder surface of light-guiding pillar 2 is smooth surface.The shape of light-guiding pillar 2 can gradually change with length direction, is rectangle such as the section configuration of the light entrance end of light-guiding pillar 2, and the section configuration of light exit end is oval.Light-guiding pillar 2 one section material or all material along its length can adopt transparent or semitransparent material, and light-guiding pillar 2 recommendation macromolecular materials are made, and can obviously improve the display effect of light.
Fig. 4 is the structural representation of middle button, Fig. 5 is its front view, middle button 8 arranges circuit board buckle 13, circuit board buckle 13 arranges two or more, each circuit board buckle 13 is even or inhomogeneous setting along the edge of circuit board, the edge of the position of circuit board buckle 13 and circuit board 6 is suitable, to realize the clamping of circuit board 6 and middle button 8.The circuit board buckle 13 of this embodiment is left-right symmetric and is provided with respectively two, and interlocking up and down is provided with respectively one.Be welded with contact pin 7 on the circuit board 6, contact pin 7 adopts the design of tripodia solder joints, can guarantee verticality and can circuit board 6 during for single-sided circuit board with its welding, both direction is spacing about this moment band.
The lower surface of middle button 8 is from the center to the periphery setting that is inclined upwardly, the outer circular edge of button 8 distributes a plurality of osculums 12 that run through middle button 8 upper and lower surfaces is set in the edge, behind each assembling parts of point type heat fire detector, be inverted in the roof in the buildings, the surface of middle button 8 forms the waterproof inclined-plane, cooperate again osculum 12, the ponding of inlet point sensing fire detector in the time of can getting rid of fortuitous event, prevent from losing efficacy the normal operation of guarantee point sensing fire detector and fire alarm system with circuit board 6 immersions of middle button 8 clampings.So the utility model point type heat fire detector can work under the environment that humidity is leaked.
Fig. 6 is the structural representation of annular middle cover, Fig. 7 is its front view, the annular middle cover trip 15 that the inside surface setting of annular middle cover 4 is radially given prominence to, annular middle cover trip 15 is two to four and along the even or inhomogeneous setting of the inside surface of annular middle cover 4, this embodiment is specifically inhomogeneous to be provided with 3 annular middle cover trips 15, each annular middle cover trip 15 is equidistant apart from the upper surface of annular middle cover 4, the edge of Fig. 4 and middle button 8 shown in Figure 5 arranges middle button clip tenon trough 14, the annular middle cover trip 15 that arranges on middle button clip tenon trough 14 and Fig. 6 and the annular middle cover 4 shown in Figure 7 is suitable, that is to say, the quantity of middle button clip tenon trough 14 and position, suitable with quantity and the position of annular middle cover trip 15, the shape and size of button clip tenon trough 14 in each, slide simultaneously and contain the shape and size of each annular middle cover trip 15, with the rotation fixedly clamping of button 8 in realizing with annular middle cover 4.
Fig. 6 and annular middle cover 4 shown in Figure 7 are along even circumferential or inhomogeneous two to four annular middle cover clip tenon troughs 16 are set, this embodiment specifically: annular middle cover 4 arranges 3 annular middle cover clip tenon troughs 16 along even circumferential; Figure 12 is the structural representation of loam cake, and Figure 13 is its front view, and the upper end of loam cake 1 is provided with annular permeable structures, sees through the light that this annular permeable structures can be seen from all angles light-guiding pillar 2.Loam cake 1 arranges the loam cake trip 18 that axially stretches out along circumference, the annular middle cover clip tenon trough 16 that arranges on loam cake trip 18 and Fig. 6 and the annular middle cover 4 shown in Figure 7 is suitable, specifically can be set to: each annular middle cover clip tenon trough 16 length along the circumferential direction, greater than each loam cake trip 18 width along the circumferential direction, each annular middle cover clip tenon trough 16 is the shape and size of same end along its length, slide simultaneously and contain the shape and size of each loam cake trip 18, each annular middle cover clip tenon trough 16 is the shape and size of the other end along its length, less than the required shape and size of passing through of each loam cake trip 18, realize the fixedly clamping of rotation of loam cake 1 and annular middle cover 4.Solved the prior art loam cake and opened difficulty, be not easy to the problem of keeping in repair reprocessing product, can realize that not taking product apart keeps in repair reprocessed products.By loam cake 1 and annular middle cover 4 fixedly clampings of rotation, an end that makes light-guiding pillar 2 towards and press close to the luminous site of light emitting diode 11, the top of the other end of light-guiding pillar 2 along loam cake 1 bending curvature to loam cake 1 and corresponding with the annular permeable structures that arranges on the loam cake 1 simultaneously.
In Fig. 1 and Fig. 2, the utility model point type heat fire detector also is provided with decorated disk 3, decorated disk 3 is fixedly installed in loam cake 1 and is coaxial with loam cake 1, the structure of decorated disk 3 such as Fig. 8 and shown in Figure 9, one side of decorated disk 3 is provided with light-guiding pillar support slot 17, be convenient to support light-guiding pillar 2, make the one-piece construction after point type heat fire detector is assembled more stable.
Can be used as the probe that an integral body consists of point type heat fire detector behind each assembling parts of label 1-8 in the utility model point type heat fire detector, base 10 spins with probe, and base 10 is by spinning to realize and spinning of popping one's head in annular middle cover 4 in other words.Anti-theft clamping hook can also be set, anti-theft clamping hook can increase or removal according to customer demand, between anti-theft clamping hook inserted base 10 and the annular middle cover 4, in other words between inserted base 10 and the probe, then 90-degree rotation need not take out, and directly can screw off probe, can realize that the building-site one-handed performance takes off the utility model point type heat fire detector and (together do not take off base 10 this moment, base 10 is fixed on the roof in the buildings, need not to take off).The structural representation of base 10 as shown in Figure 3, be provided with contact chip 9 in the base 10, contact chip 9 links to each other with external power cord, after the point type heat fire detector assembling, contact chip 9 forms the complete path that is electrically connected by contacting with contact pin 7 with circuit board 6, thus with the current lead-through of external power source to circuit board 6.Thermistor 5 carries out the overheated detection of surrounding environment as temperature sensor, when sensing temperature anomaly, circuit board 6 is luminous by light emitting diode 11, the light that by light-guiding pillar 2 light emitting diode 11 is sent again is transmitted to the top of loam cake 1, by the annular permeable structures printing opacity that arranges on the loam cake 1, it is visual to reach luminous 360 degree, fully realizes the function that light is reported to the police.
Should be pointed out that the above embodiment can make the invention of those skilled in the art's comprehend, but do not limit the present invention in any way creation.Therefore; although this instructions has been described in detail the invention with reference to drawings and Examples; but; those skilled in the art are to be understood that; still can make amendment or be equal to replacement the invention; in a word, all do not break away from technical scheme and the improvement thereof of the spirit and scope of the invention, and it all should be encompassed in the middle of the protection domain of the invention patent.
Claims (12)
1. point type heat fire detector, the circuit board that comprises shell and enclosure, be provided with thermistor and light emitting diode on the described circuit board, it is characterized in that, described enclosure is provided with light-guiding pillar and tabular middle button, described shell comprises the base that connects successively, annular middle cover and loam cake, described base, the exterior contour that annular middle cover and loam cake consist of is half billiard table shape, described loam cake is positioned at the top of half billiard table, described middle button clamping is arranged in the annular middle cover, during being arranged on, described circuit board clamping buckles, the surface of the luminous site of light emitting diode is towards loam cake, described light-guiding pillar is the cylindrical bending structure, one end of light-guiding pillar towards and press close to the luminous site of light emitting diode, the other end of light-guiding pillar along the loam cake bending curvature to loam cake the top and with on to cover the annular permeable structures of setting corresponding, described light-guiding pillar along an end of loam cake bending curvature in the end back bending so that the termination at the two ends of light-guiding pillar conduction direction of light is identical.
2. point type heat fire detector according to claim 1 is characterized in that, described light-guiding pillar is two cambered surfaces along the surface of the termination of an end of loam cake bending curvature.
3. point type heat fire detector according to claim 1 is characterized in that, described light-guiding pillar is along the equivalent diameter at the loam cake bending curvature place equivalent diameter less than the termination at the two ends of light-guiding pillar.
4. point type heat fire detector according to claim 3 is characterized in that, described light-guiding pillar accounts for 1/3 of light-guiding pillar entire length along the length of an end of loam cake bending curvature.
5. point type heat fire detector according to claim 1 is characterized in that, the section configuration of described light-guiding pillar is circle or ellipse or rectangle, and the junction on described rectangle four limits arranges circular arc and connects, and the cylinder surface of described light-guiding pillar is smooth surface.
6. point type heat fire detector according to claim 1 is characterized in that, described light-guiding pillar one section material or all material along its length is transparent or semitransparent material.
7. point type heat fire detector according to claim 1, it is characterized in that, described middle button arranges the circuit board buckle, described circuit board buckle arranges two or more, each circuit board buckle is even or inhomogeneous setting along the edge of circuit board, and the position of circuit board buckle and the edge of circuit board are suitable.
8. point type heat fire detector according to claim 1, it is characterized in that, the annular middle cover trip that the inside surface setting of described annular middle cover is radially given prominence to, described annular middle cover trip is two to four and along the even or inhomogeneous setting of the inside surface of annular middle cover, each annular middle cover trip is equidistant apart from the upper surface of annular middle cover, the edge of described middle button arranges middle button clip tenon trough, and the annular middle cover trip that covers setting in described middle button clip tenon trough and the annular is suitable.
9. point type heat fire detector according to claim 1, it is characterized in that, cover rim even circumferential or inhomogeneous two to four annular middle cover clip tenon troughs are set in the described annular, described upper cover rim circumference arranges the loam cake trip that axially stretches out, the annular middle cover clip tenon trough that covers setting in described loam cake trip and the annular is suitable, described loam cake and fixedly clamping of annular middle cover rotation.
10. point type heat fire detector according to claim 1 is characterized in that, the lower surface of described middle button is from the center to the periphery setting that is inclined upwardly, along in the outer circular edge of button distribute the osculum of buckling lower surface in a plurality of running through be set.
11. to one of 10 described point type heat fire detectors, it is characterized in that according to claim 1, be fixedly installed the decorated disk coaxial with loam cake in the described loam cake, a side of described decorated disk is provided with the light-guiding pillar support slot that supports light-guiding pillar.
12. to one of 10 described point type heat fire detectors, it is characterized in that according to claim 1 described base and annular middle cover spin and with anti-theft clamping hook, between described anti-theft clamping hook inserted base and the annular middle cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220578071 CN202904805U (en) | 2012-11-05 | 2012-11-05 | Spot-type temperature-sensitive fire detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220578071 CN202904805U (en) | 2012-11-05 | 2012-11-05 | Spot-type temperature-sensitive fire detector |
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| CN202904805U true CN202904805U (en) | 2013-04-24 |
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| CN 201220578071 Expired - Fee Related CN202904805U (en) | 2012-11-05 | 2012-11-05 | Spot-type temperature-sensitive fire detector |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102903199A (en) * | 2012-11-05 | 2013-01-30 | 北京福赛尔安全消防设备有限公司 | Point-type heat fire detector |
| JP2016530644A (en) * | 2013-09-04 | 2016-09-29 | スプルー・セーフティー・プロダクツ・リミテッド | Heat sensor |
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2012
- 2012-11-05 CN CN 201220578071 patent/CN202904805U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102903199A (en) * | 2012-11-05 | 2013-01-30 | 北京福赛尔安全消防设备有限公司 | Point-type heat fire detector |
| JP2016530644A (en) * | 2013-09-04 | 2016-09-29 | スプルー・セーフティー・プロダクツ・リミテッド | Heat sensor |
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