CN209328173U - A kind of point type heat fire detector - Google Patents
A kind of point type heat fire detector Download PDFInfo
- Publication number
- CN209328173U CN209328173U CN201920266457.5U CN201920266457U CN209328173U CN 209328173 U CN209328173 U CN 209328173U CN 201920266457 U CN201920266457 U CN 201920266457U CN 209328173 U CN209328173 U CN 209328173U
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- China
- Prior art keywords
- circuit board
- upper cover
- middle button
- pedestal
- supporting plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 42
- 239000000523 sample Substances 0.000 claims abstract description 14
- 230000002093 peripheral effect Effects 0.000 claims abstract description 5
- 230000006978 adaptation Effects 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 3
- 235000019504 cigarettes Nutrition 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000004078 waterproofing Methods 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
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- 239000000839 emulsion Substances 0.000 description 1
- 230000003760 hair shine Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
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- 238000001764 infiltration Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Abstract
The utility model discloses a kind of point type heat fire detectors, it is related to the technical field of fire alarm equipment, including pedestal, clamping is connected with upper cover on pedestal, middle button is provided between pedestal and upper cover, middle detain is provided with circuit board close to the side of upper cover, thermosensitive probe and light emitting diode are provided on circuit board, the exterior contour of upper cover is half ball-table shape, upper cover peripheral wall offers multiple for guiding the diversion trench of air-flow, middle detain is fixed with multiple fixture blocks being adapted to circuit board clamping close to the side of circuit board, in be buckled at fixture block and offer holding tank, the flexible middle button elastic slice for pushing against circuit board of setting in holding tank, the pin being connected to there are two being arranged on pedestal with electric power loop, middle button end of the elastic slice far from circuit board is adapted to pin grafting.The utility model by middle button elastic slice by circuit board elastic be connected in buckle, both realized the flexible clamping of circuit board, in turn ensured well contacting for circuit board and power supply, avoid poor contact.
Description
Technical field
The utility model relates to the technical fields of fire alarm equipment, more particularly, to a kind of point-type temperature-sensing fire detecting
Device.
Background technique
Heat fire detector (abbreviation warming) mainly detects fire using temperature-sensitive element.In the initial rank of fire
Section, on the one hand has a large amount of smog to generate, and another aspect substance releases a large amount of heat, ambient temperature in combustion
It steeply rises.Heat fire detector is generally made of temperature-sensing element, circuit and alarm three parts, its working principle is that visiting
Survey device in temperature-sensitive element according to ambient temperature occur physical change, response abnormality temperature, temperature rate, the temperature difference, thus
Temperature signal is transformed into electric signal, and carries out alert process, is highly suitable for some generating a large amount of heats and smokeless or produce
The fire of raw a small amount of cigarette, and dust is more, humidity is big under normal circumstances, has cigarette and vapor to be detained, and be not suitable for sense cigarette
The place of fire detector.
But detector is chronically at that dust is more, humidity is big, in the environment that there is cigarette and vapor to be detained when, dust and water steam
Air exhaustion easily corrodes the circuit in detector, causes to damage to circuit board and electric elements, and short circuit or temperature-sensitive can be caused to visit when serious
Head induction failure, so that fire detector loses effectiveness, there are biggish security risks, therefore need periodically to carry out nothing to detector
Damage detection, if structure is complicated for fire detector, dismounting is cumbersome, can carry out larger inconvenience to detection work belt, increase testing staff
Workload.
Utility model content
The purpose of the utility model is to provide a kind of convenient point type heat fire detectors of disassembly.
The utility model has the technical scheme that
A kind of point type heat fire detector, including pedestal, clamping is connected with upper cover, the pedestal and institute on the pedestal
It states and is provided with middle button between upper cover, middle detain is provided with circuit board close to the side of the upper cover, is arranged on the circuit board
There are thermosensitive probe and light emitting diode, the exterior contour of the upper cover is half ball-table shape, and the upper cover peripheral wall offers multiple use
In the diversion trench of guidance air-flow, the middle side for detaining the close circuit board is fixed with multiple be clamped with the circuit board and is adapted to
Fixture block, it is described in be buckled at the fixture block and offer holding tank, setting is flexible in the holding tank pushes against the circuit board
Middle button elastic slice, setting is there are two the pin being connected to electric power loop on the pedestal, and the middle button elastic slice is far from the circuit
The end of plate is adapted to through the receiving groove bottom wall and with the pin grafting.
By using above-mentioned technical proposal, middle button is placed on pedestal, in buckle the lower end that elastic slice is detained in two of them
Portion is adapted to two pin grafting, and button elastic slice is connected to electric power loop in this two at this time, rotation circuit plate to circuit board and in
The multiple fixture blocks clamping adaptation buckled, the upper end of middle button elastic slice by circuit board elastic be pushed against in buckle simultaneously by circuit board and
Electric power loop connection, then upper cover is adapted to pedestal clamping, and pedestal is inversely installed in the wall for needing to install fire detector
On wall;Thermosensitive probe on circuit board monitors the temperature change of surrounding enviroment by the air-flow that the diversion trench on upper lid guides, when
When sensing temperature anomaly, light emitting diode is lighted by circuit board, to realize the fire alarm effect of detector;Upper cover
With pedestal clamping be adapted to, circuit board by middle button elastic slice be elastically engaged in buckle, the later period to detector carry out overhaul or more
Only needing rotation circuit plate that circuit board and fixture block is made to be detached from clamping when changing components can be realized power-off to detector and by circuit
Plate disassembles, and when maintenance is more convenient, effectively reduces the workload of testing staff.
It is further arranged to: being fixed with multiple first plug tenon slots on the pedestal, the middle button is close to the one of the pedestal
Side is fixed with multiple the first plug tenons being adapted to the first plug tenon slot clamping.
By using above-mentioned technical proposal, middle button is clamped by the clamping adaptation and pedestal of the first plug tenon and the first plug tenon slot
Connection, enhances the stability of middle button, and when assembly and disassembly is more convenient efficiently.
Be further arranged to: the side's of buckling plug connection in described is placed on described a supporting plate, it is described in buckle be provided with it is more
A second plug tenon slot is fixed on the supporting plate and multiple is clamped the second plug tenons being adapted to, the supporting plate with the second plug tenon slot
Middle part offers the through-hole for accommodating the thermosensitive probe, and the supporting plate is provided with multiple be used for close to the side of the middle button
Push against the circuit board supports column.
By using above-mentioned technical proposal, plug connection forms close between the supporting plate on upper lid and upper cover side wall and middle button
Closed chamber body plays good moisture-proof, dust-proof, heat-blocking action in the intracorporal circuit board of closed chamber for setting, enhances detector
Durability when use reduces the number that testing staff detects fire detector, the work of testing staff is reduced from source
It measures;Supporting plate is connect by the clamping adaptation of the second plug tenon and the second plug tenon slot with middle buckle in succession, while being supported column and being supported circuit board
Tightly on middle button elastic slice, further ensures the stability of circuit board and contacted with middle the good of button elastic slice.
Be further arranged to: the supporting plate edge is provided with first step, and the upper cover is at the first step
It is provided with the second step being adapted to the first step grafting, the supporting plate lower surface is tilted down from the center to periphery to be set
It sets, the splint upper surface is circumferentially provided with third step along the through-hole.
By using above-mentioned technical proposal, first step is adapted to second step grafting, so that in supporting plate and upper cover lower end
Wall forms good waterproof sealing, further ensures detector to the waterproofing protection of circuit board;Supporting plate upper surface is provided with
Convex surface, so that detector is inversely installed when on wall, after rain sprinkling on the detector, rainwater can be along supporting plate convex surface from support
The middle part of plate is dripped, without the engaging portion by supporting plate and upper cover penetrate on the circuit board buckled;The setting of third step
Also it can prevent rainwater from penetrating on circuit board by through-hole.
It is further arranged to: being provided with cricoid elastic seal ring between the first step and the second step.
By using above-mentioned technical proposal, shape between supporting plate and upper cover side wall and middle button is furthermore achieved in elastic seal ring
At airtight cavity leakproofness, ensure that seal cavity to the waterproofing protection of circuit board.
It is further arranged to: being provided with guide-lighting set on the supporting plate, be equipped with light-guiding pillar, the leaded light in the guide-lighting set
Column is close to the end of the circuit board and the light emitting diode close to the light-guiding pillar runs through the upper cover.
By using above-mentioned technical proposal, when light emitting diode is lighted, light is transferred to light-guiding pillar by light-guiding pillar and is located at
The end of upper exterior surface, plays a warning role, and has fire to remind.
Be further arranged to: the light-guiding pillar and the guide-lighting set are made of transparent or semitransparent material, the light-guiding pillar
One end of the upper cover is provided with anticreep protrusion.
By using above-mentioned technical proposal, light-guiding pillar penetrates light-guiding pillar and leaded light in transmission ray, by multiple reflections
Set forms 360 degree and shines, to expand the warning range of light emitting diode, anticreep protrusion by light-guiding pillar be fixed on guide-lighting set with
Between upper cover inner wall, light-guiding pillar shakes or falls off when detector being prevented to be inverted, and influences light guide effect.
In conclusion the advantageous effects of the utility model are as follows:
(1) circuit board by middle button elastic slice be elastically engaged in buckle, when circuit board installing and dismounting, is more convenient, reduces
The workload of testing staff;
(2) circuit board is connected to by button elastic slice by pin with electric power loop in, has not only prevented the poor contact of circuit board but also simple
The components in detector are changed, installing and dismounting is more simple;
(3) supporting plate is enclosed receiving circuit by elastic seal ring and upper cover plug connection, supporting plate and upper cover and middle button
The airtight cavity of plate effectively realizes the waterproof and dustproof performance of detector, ensure that the durability of detector, reduces detection
Personnel detect the number of fire detector, and the workload of testing staff is reduced from source.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the utility model;
Fig. 2 is the cross-sectional view of the line A-A along Fig. 1;
Fig. 3 is the top view of pedestal;
Fig. 4 is the top view of middle button;
Fig. 5 is the side view of supporting plate;
Fig. 6 is the portion B partial enlarged view in Fig. 2;
Fig. 7 is the portion C partial enlarged view in Fig. 2;
Fig. 8 is the portion D partial enlarged view in Fig. 2;
Fig. 9 is the partial sectional view of the E-E line along Fig. 4;
Figure 10 is the structural schematic diagram of middle button elastic slice.
Appended drawing reference: 1, pedestal;2, upper cover;3, diversion trench;4, middle button;5, circuit board;6, fixture block;7, holding tank;8, in
Detain elastic slice;9, pin;10, the first plug tenon slot;11, the first plug tenon;12, supporting plate;13, the second plug tenon slot;14, the second plug tenon;15,
Through-hole;16, column is supported;17, first step;18, second step;19, third step;20, elastic seal ring;21, guide-lighting set;22,
Light-guiding pillar;23, anticreep protrusion.
Specific embodiment
The utility model is described in further detail below in conjunction with attached drawing.
It referring to Figures 1 and 2, is a kind of point type heat fire detector disclosed by the utility model, including bowl-shape pedestal
1, clamping is connected with upper cover 2 on pedestal 1, and the exterior contour of upper cover 2 is half ball-table shape, and the peripheral wall of 2 upper end of upper cover offers more
A diversion trench 3 for being used to guide air-flow, diversion trench 3 are in preferably equidistant circumference array distribution, pedestal 1 along 2 outside spherical surface of upper cover
It is as shown in Figure 3 that multiple first plug tenon slot 10(are fixed on the bottom wall of upper end), the first plug tenon slot 10 is preferably two and with pedestal 1
Axis is centrosymmetric setting, and the clamping of 1 upper surface of pedestal is provided with disk-shaped middle button 4,4 lower end surfaces of middle button be fixed with it is multiple and
First plug tenon 11(of the first plug tenon slot 10 clamping adaptation is as shown in Figure 9), the clamping of 4 upper surfaces of middle button is connected with circuit board 5, circuit
Thermosensitive probe and light emitting diode are provided on plate 5, thermosensitive probe is that thermistor is made and buckles 4 positioned at middle in the prior art
At center, light emitting diode is preferably LED patch.
Middle button 4 is placed on pedestal 1, middle button 4 is adapted to clamping with the clamping of the first plug tenon slot 10 by the first plug tenon 11
It is connected on pedestal 1, ensure that stability of the middle button 4 on pedestal 1 rotates upper cover 2, make after 4 clamping of circuit board 5 and middle button
Upper cover 2 and the clamping of pedestal 1 connect, and air is focused at thermosensitive probe by the diversion trench 3 in upper cover 2 at this time, thermosensitive probe prison
The temperature change for surveying surrounding enviroment is lighted light emitting diode by circuit board 5 when sensing temperature anomaly, to realize
The fire alarm of detector acts on;Upper cover 2 and the clamping of pedestal 1 connection, middle button 4 and 4 card of the clamping of pedestal 1, circuit board 5 and middle button
It is more facilitated when connecing, therefore carrying out assembly and later maintenance to detector.
Referring to Fig. 2 and Fig. 4,4 upper surfaces of middle button are fixed with multiple fixture blocks 6 being adapted to the clamping of circuit board 5, and fixture block 6 is preferred
It is in equidistant circumference array distribution for four and with 4 axis of middle button, middle button 4 offers holding tank 7 at fixture block 6, sets in holding tank 7
Be equipped with elasticity push against circuit board 5 middle button elastic slice 8(it is as shown in Figure 10), there are two the L being connected to electric power loop for setting on pedestal 1
The pin 9 of type, middle button elastic slice 8 are preferably suppressed by one block of stainless steel, are bent, and end elasticity pushes against under circuit board 5 thereon
The contact of end face, lower end are adapted to through 7 bottom wall of holding tank and with 9 grafting of pin.When middle button 4 is placed on pedestal 1, middle button
The lower end for detaining elastic slice 8 on 4 in two of them is adapted to two 9 grafting of pin, at this time button elastic slice 8 and electric power loop in this two
Connection, rotation circuit plate 5 to circuit board 5 are adapted to the clamping of multiple fixture blocks 6 on middle button 4, and the middle upper end for detaining elastic slice 8 is by circuit
5 elasticity of plate be pushed against it is middle button 4 on and meanwhile circuit board 5 is connected to electric power loop, need to overhaul detector to single detector into
It only needs rotation circuit plate 5 that circuit board 5 is made to be detached from the clamped condition with fixture block 6 when row power-off, reduces the safety got an electric shock when maintenance
Hidden danger;5 elasticity of circuit board is pushed against at fixture block 6 by middle button elastic slice 8, both ensure that the stability of circuit board 5, by being convenient for circuit board
5 disassembly also simplifies the inner body of detector, simpler, quick when producing, assembling.
Referring to Fig. 2 and Fig. 5, the plug connection above middle button 4 of 2 inner wall of upper cover has the supporting plate 12 coaxial with upper cover 2, middle button 4
On to offer multiple second plug tenon slot 13(as shown in Figure 4), the second plug tenon slot 13 be preferably two and with 4 axis of middle button in center
It is symmetrical arranged, multiple the second plug tenons 14 being adapted to the clamping of the second plug tenon slot 13 is fixed on supporting plate 12, are opened up in the middle part of supporting plate 12
There is the through-hole 15 for accommodating thermosensitive probe, supporting plate 12 is provided with multiple for pushing against supporting for circuit board 5 close to the side of middle button 4
Column 16 supports column 16 and is preferably four and is in equidistant circumference array distribution with 12 axis of supporting plate.Supporting plate of the plug connection in upper cover 2
Airtight cavity is formed between 12 and 2 side wall of upper cover and middle button 4, is played well for setting in the intracorporal circuit board 5 of closed chamber
Moisture-proof, dust-proof, heat-blocking action enhances durability when detector uses;Supporting plate 12 passes through the second plug tenon 14 and the second plug tenon
The clamping adaptation of slot 13 is connected with middle 4 clamping of button, while supporting column 16 and circuit board 5 is pushed against on middle button elastic slice 8, both easy to disassemble
The stability and circuit board 5 that further ensure that circuit board 5 are contacted with the good conductive of middle button elastic slice 8.
Referring to Fig. 7 and Fig. 8,12 edge of supporting plate is provided with circular first step 17, and 2 inner wall of upper cover is close to First
It is provided with the second step 18 being adapted to 17 grafting of first step at rank 17, is also set up between first step 17 and second step 18
Flexible sealing ring 20, elastic seal ring 20 are preferably made of natural emulsion, and 12 lower surface of supporting plate is downward from the center to periphery
It is obliquely installed, 12 upper surface of supporting plate is as shown in Figure 5 along through-hole 15() circumferentially it is provided with circular third step 19(such as Fig. 5 institute
Show), it is provided with guide-lighting set 21 on supporting plate 12, is equipped with light-guiding pillar 22 in leaded light set 21, light-guiding pillar 22 is close to the end of circuit board 5
Running through upper cover 2 close to, light-guiding pillar 22 with light emitting diode, light-guiding pillar 22 and guide-lighting set 21 are made of transparent or semitransparent material,
Light-guiding pillar 22 is provided with anticreep protrusion 23 close to one end of upper cover 2.
When supporting plate 12 is mounted between upper cover 2 and middle button 4, first step 17 is adapted to 18 grafting of second step, so that support
Plate 12 and 2 lower end inner wall of upper cover form certain waterproof sealing, and elastic seal ring 20 further enhances supporting plate 12 and upper cover 2
Waterproof seal between junction ensure that detector protects the effective waterproof and dustproof of circuit board 5, ensure that circuit board 5
Durability, reduce testing staff detect fire detector number, the workload of testing staff is reduced from source;Support
12 upper surface of plate is provided with convex surface, so that detector is inversely installed when on wall, after rain sprinkling on the detector, rainwater
It can be dripped along 12 convex surface of supporting plate from the middle part of supporting plate 12, without on button 4 in the engaging portion infiltration by supporting plate 12 and upper cover 2
On circuit board 5;The setting of third step 19 and guide-lighting set 21 can also prevent rainwater from penetrating by through-hole 15 and 22 periphery of light-guiding pillar
Onto circuit board 5;When light emitting diode is lighted, light transmits including light-guiding pillar 22, penetrates light-guiding pillar 22 by multiple reflections
21 are covered with leaded light and reaches light-guiding pillar 22 close to the end of 2 outer wall of upper cover, and shining for 360 degree of formation is warned from larger range
The generation of fire;Light-guiding pillar 22 is fixed between guide-lighting set 21 and 2 inner wall of upper cover by anticreep protrusion 23, when detector being prevented to be inverted
Light-guiding pillar 22 shakes or falls off, and influences light guide effect.
It the implementation principle of the present embodiment and has the beneficial effect that
Middle 4 clamping of button is mounted on pedestal 1, rotation circuit plate 5 is clamped circuit board 5 and multiple fixture blocks 6, middle button elastic slice
8 by 5 elasticity of circuit board be pushed against it is middle button 4 on, while middle button elastic slice 8 pass through it is mating by circuit board 5 and power supply with pin 9
The clamping of supporting plate 12 is mounted on middle button 4 by circuit communication, and rotation upper cover 2 connects upper cover 2 and the clamping of pedestal 1, each portion of detector
Part is clamped connection, and detector is more convenient in installation, disassembly, while middle button elastic slice 8 had both realized the flexible clamping of circuit board 5
The components of detector are in turn simplified, detector is simpler in installation, disassembly, reduces the workload of testing staff.
After detector is mounted on wall, air flow guiding in ambient enviroment is converged to temperature-sensitive by the diversion trench 3 of 2 peripheral wall of upper cover
At probe, thermosensitive probe detects the temperature change of air-flow, and when environment temperature changes, thermosensitive probe is lighted by circuit board 5
The light of light emitting diode, light emitting diode is transferred to 22 end of light-guiding pillar by light-guiding pillar 22, realizes that 360 degree of warning is made
With;Supporting plate 12 is with 2 plug connection of upper cover and centre is provided with elastic seal ring 20, ensure that the effective waterproof and dustproof of detector
Performance increases durability when detector uses, and reduces the number that testing staff detects fire detector, subtracts from source
The workload of testing staff is lacked.
The embodiment of present embodiment is the preferred embodiment of the utility model, and not limitation is originally practical new according to this
The protection scope of type, therefore: the equivalence changes that all structures, shape, principle according to the utility model are done should all be covered by practical
Within novel protection scope.
Claims (7)
1. a kind of point type heat fire detector, including pedestal (1), it is clamped and is connected with upper cover (2) on the pedestal (1), it is described
Middle button (4) is provided between pedestal (1) and the upper cover (2), the middle button (4) is provided with close to the side of the upper cover (2)
Circuit board (5) is provided with thermosensitive probe and light emitting diode on the circuit board (5), it is characterised in that: the upper cover (2)
Exterior contour is half ball-table shape, and upper cover (2) peripheral wall offers multiple for guiding the diversion trench (3) of air-flow, the middle button
(4) side close to the circuit board (5) is fixed with multiple fixture blocks (6) being adapted to the circuit board (5) clamping, the middle button
(4) it is offered holding tank (7) at Yu Suoshu fixture block (6), setting is flexible in the holding tank (7) pushes against the circuit board (5)
Middle button elastic slice (8), there are two the pin (9) being connected to electric power loop, the middle button elastic slices (8) for setting on the pedestal (1)
End far from the circuit board (5) is adapted to through the holding tank (7) bottom wall and with the pin (9) grafting.
2. point type heat fire detector according to claim 1, it is characterised in that: be fixed on the pedestal (1) more
A first plug tenon slot (10), the middle button (4) are fixed with multiple and the first plug tenon slot close to the side of the pedestal (1)
(10) the first plug tenon (11) of clamping adaptation.
3. point type heat fire detector according to claim 2, it is characterised in that: the upper cover (2) is in the middle button
(4) top plug connection has supporting plate (12), is provided with multiple second plug tenon slots (13), the supporting plate (12) on the middle button (4)
On be fixed with multiple the second plug tenons (14) for being clamped with the second plug tenon slot (13) and be adapted to, supporting plate (12) middle part offers
For accommodating the through-hole (15) of the thermosensitive probe, the supporting plate (12) is provided with multiple use close to the side of the middle button (4)
Column (16) are supported in the abutting circuit board (5).
4. point type heat fire detector according to claim 3, it is characterised in that: supporting plate (12) the edge setting
Have first step (17), the upper cover (2) is provided with and the first step (17) grafting at the first step (17)
The second step (18) of adaptation, supporting plate (12) lower surface tilt down setting from the center to periphery, on the supporting plate (12)
Surface is circumferentially provided with third step (19) along the through-hole (15).
5. point type heat fire detector according to claim 4, it is characterised in that: the first step (17) with it is described
Cricoid elastic seal ring (20) are provided between second step (18).
6. point type heat fire detector according to claim 5, it is characterised in that: be provided with and lead on the supporting plate (12)
Light set (21), the guide-lighting set (21) is interior to be equipped with light-guiding pillar (22), end of the light-guiding pillar (22) close to the circuit board (5)
Portion and the light emitting diode are close to the light-guiding pillar (22) runs through the upper cover (2).
7. point type heat fire detector according to claim 6, it is characterised in that: the light-guiding pillar (22) and described lead
Light set (21) is made of transparent or semitransparent material, and the light-guiding pillar (22) is provided with anticreep close to the one end of the upper cover (2)
Raised (23).
Priority Applications (1)
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CN201920266457.5U CN209328173U (en) | 2019-03-01 | 2019-03-01 | A kind of point type heat fire detector |
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CN201920266457.5U CN209328173U (en) | 2019-03-01 | 2019-03-01 | A kind of point type heat fire detector |
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CN201920266457.5U Expired - Fee Related CN209328173U (en) | 2019-03-01 | 2019-03-01 | A kind of point type heat fire detector |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112950885A (en) * | 2021-02-06 | 2021-06-11 | 武汉恒安数联电子科技有限公司 | Composite smoke and temperature sensing fire detector |
CN113781733A (en) * | 2021-09-06 | 2021-12-10 | 华能吉林发电有限公司长春热电厂 | Fire early warning system based on wireless temperature measuring device |
-
2019
- 2019-03-01 CN CN201920266457.5U patent/CN209328173U/en not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112950885A (en) * | 2021-02-06 | 2021-06-11 | 武汉恒安数联电子科技有限公司 | Composite smoke and temperature sensing fire detector |
CN113781733A (en) * | 2021-09-06 | 2021-12-10 | 华能吉林发电有限公司长春热电厂 | Fire early warning system based on wireless temperature measuring device |
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