CN114387756A - Convenient-to-assemble combined fire detector - Google Patents
Convenient-to-assemble combined fire detector Download PDFInfo
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- CN114387756A CN114387756A CN202111672983.XA CN202111672983A CN114387756A CN 114387756 A CN114387756 A CN 114387756A CN 202111672983 A CN202111672983 A CN 202111672983A CN 114387756 A CN114387756 A CN 114387756A
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- fixedly connected
- smoke
- ring
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- 230000001681 protective effect Effects 0.000 claims abstract description 49
- 238000007789 sealing Methods 0.000 claims abstract description 46
- 239000000779 smoke Substances 0.000 claims abstract description 46
- 238000005086 pumping Methods 0.000 claims abstract description 18
- 238000001125 extrusion Methods 0.000 claims description 15
- 239000007787 solid Substances 0.000 claims description 4
- 230000000740 bleeding effect Effects 0.000 claims description 2
- 244000309464 bull Species 0.000 claims 4
- 238000001514 detection method Methods 0.000 abstract description 13
- 238000000034 method Methods 0.000 abstract description 10
- 238000010411 cooking Methods 0.000 abstract description 4
- 230000002349 favourable effect Effects 0.000 abstract description 4
- 238000000605 extraction Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 8
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 5
- 239000003546 flue gas Substances 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- 239000000428 dust Substances 0.000 description 4
- 230000000391 smoking effect Effects 0.000 description 3
- 241000255925 Diptera Species 0.000 description 2
- 230000003111 delayed effect Effects 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000003434 inspiratory effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 210000000697 sensory organ Anatomy 0.000 description 1
- 239000004509 smoke generator Substances 0.000 description 1
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Classifications
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/10—Cleaning by methods involving the use of tools characterised by the type of cleaning tool
- B08B1/12—Brushes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/30—Cleaning by methods involving the use of tools by movement of cleaning members over a surface
- B08B1/32—Cleaning by methods involving the use of tools by movement of cleaning members over a surface using rotary cleaning members
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B5/00—Cleaning by methods involving the use of air flow or gas flow
- B08B5/04—Cleaning by suction, with or without auxiliary action
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- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fire-Detection Mechanisms (AREA)
Abstract
The invention discloses a combined fire detector convenient to assemble in the technical field of fire detectors, which comprises a protective shell and a smoke detector, wherein the smoke detector is fixedly connected to the inner side of the protective shell, and a plurality of air inlets distributed in a circumferential array manner are formed in the side wall of the bottom of the protective shell; when smoke is detected, when a fire disaster happens, the smoke exhaust mechanism is used for continuously and quickly pumping outside air to be in contact with the smoke sensor, the smoke can be quickly pumped, the detection timeliness of the smoke sensor is improved, timely alarming and reminding personnel to timely treat the fire disaster, large fire disasters can be greatly avoided, the air inlet sealing mechanism is matched with the air inlet, the air inlet is opened and closed in the air exhaust detection process, the detection accuracy is improved, the air inlet can be continuously sealed when the personnel perform cooking or smoke extraction and other operations, the air inlet is shielded and detected, the phenomenon that false alarm is sent at the moment is avoided, and the smoke exhaust mechanism is favorable for the personnel to use.
Description
Technical Field
The invention relates to the technical field of fire detectors, in particular to a combined fire detector convenient to assemble.
Background
The fire detector is a device for detecting the scene and finding out the fire in the fire-fighting automatic fire alarm system. Fire detectors are the "sense organs" of the system and function to monitor the environment for the presence or absence of a fire. Once there is fire, the characteristic physical quantity of fire, such as temperature, smoke, gas and radiation intensity, etc. are converted into electric signals, and act immediately to send alarm signals to the fire alarm controller.
Smoke among the prior art feels type fire detector is mostly installed on indoor roof, be used for carrying out timely detection to indoor conflagration, but actual conditions is when indoor conflagration breaing out, it needs interval a period to be located the conflagration and examines the detector, just can send out the police dispatch newspaper when the flue gas volume that the conflagration condition produced is more, delay the police dispatch newspaper, lead to unable timely discovery in the conflagration initial stage, the promptness is handled to the delay, and current fire detector is when personnel cook or smoke etc. produce the action of flue gas indoor, the conflagration warning can be sent out equally, the false triggering is reported to the police.
Based on this, the present invention has devised a combined fire detector of a type convenient to assemble, to solve the above-mentioned problems.
Disclosure of Invention
The invention aims to provide a convenient-to-assemble combined fire detector, which solves the problems that the smoke-sensitive fire detectors in the prior art are mostly arranged on indoor roofs and are used for timely detecting indoor fires, but in the actual situation, when a fire disaster occurs indoors, the fire detectors on the roofs need to be spaced for a period of time, and only give out an alarm when the smoke generated in the fire disaster is large, so that the alarm is delayed, the fire detectors cannot be timely found in the early stage of the fire disaster, the timeliness is delayed, and the existing fire detectors also give out a fire alarm and falsely trigger the alarm when people cook or smoke in the rooms to generate smoke.
In order to achieve the purpose, the invention provides the following technical scheme: a combined fire detector convenient to assemble comprises a protective shell and a smoke sensor, wherein the smoke sensor is fixedly connected to the inner side of the protective shell, a plurality of air inlets distributed in a circumferential array are formed in the side wall of the bottom of the protective shell, the protective shell is connected with a suction mechanism used for rapidly driving outside air to enter from the air inlets and accelerating air flow, the outer side wall of the protective shell is connected with a sealing mechanism used for sealing the air inlets, and the sealing mechanism is opened when the suction mechanism sucks air from the air inlets and rapidly brushes and cleans the positions of the air inlets when the suction mechanism discharges air;
the suction mechanism comprises an exhaust tube, the exhaust tube is fixedly communicated with the top of the protective shell, the top end of the exhaust tube is fixedly communicated with an exhaust bag, the top of the exhaust bag is fixedly communicated with an exhaust valve which can exhaust outwards only, the outer side wall of the exhaust bag is fixedly connected with a plurality of extrusion plates, the outer side wall of each extrusion plate is rotatably connected with a lead screw, the outer side wall of each extrusion plate is fixedly connected with a first slide bar, the first slide bars are jointly and slidably connected with a fixing ring, the lead screw penetrates through the fixing ring and is slidably connected with the fixing ring, and the bottom of the fixing ring is connected with a driving mechanism which can simultaneously drive the four lead screws to move inwards or outwards;
the driving mechanism comprises a servo motor, the servo motor is fixedly connected to the outer side wall of a fixing ring, a first gear is fixedly connected to an output shaft end of the servo motor, a plurality of second gears distributed in a circumferential array are rotatably connected to the inner side wall of the fixing ring, the second gears are meshed with one of the first gears, the screw rod penetrates through the second gears and is in threaded connection with the second gears, a rotating toothed ring is rotatably connected to the bottom of the fixing ring, and the rotating toothed ring is meshed with the second gears;
the sealing mechanism comprises a plurality of sealing plates, the sealing plates are circumferentially distributed and arrayed on the outer side wall of the protective shell, an air inlet is formed between every two adjacent sealing plates, the top ends of the sealing plates are fixedly connected with a first rotating ring, the outer side wall of the first rotating ring is fixedly connected with a plurality of first connecting blocks, the top ends of the first connecting blocks are fixedly connected with a second gear ring, the second gear ring is rotatably connected to the outer surface of the protective shell, and the outer side wall of the protective shell is connected with a rotating mechanism used for driving the second gear ring to rotate when an air exhaust bag exhausts air;
the rotating mechanism comprises a plurality of second fixing blocks, a second rotating rod is rotatably connected inside each second fixing block, the bottom end of each second rotating rod is fixedly connected with a third gear, the plurality of third gears are meshed with a second gear ring, the top end of each second rotating rod is fixedly connected with a fourth gear, an L-shaped connecting frame is fixedly connected to the outer surface of each first sliding rod, a first rack is fixedly connected to the bottom end of each L-shaped connecting frame, and the first racks are meshed with the fourth gears;
a plurality of third slide bars are connected with the sealing plates in a sliding manner, a first baffle disc is fixedly connected with the outer end of each third slide bar, a tension spring fixedly connected between the first baffle disc and the sealing plates is sleeved on the outer surface of each third slide bar, the inner ends of a plurality of third slide bars on the same side are fixedly connected with a brush plate together, and the brush plate is positioned on the driving outer side of the protective shell;
the outer side wall of the protective shell is fixedly connected with an annular protective cover, a plurality of second rotating rods penetrate through the annular protective cover and are rotatably connected with the annular protective cover, the annular protective cover surrounds a second gear ring and a plurality of third gears, and notches for the first connecting blocks to rotate circumferentially are formed in the bottom of the annular protective cover;
the bottom of the fixing ring is fixedly connected with an installation plate, and a plurality of threaded openings are formed in the installation plate;
the air exhaust device is characterized in that a one-way valve is fixedly connected to the inner side wall of the air exhaust pipe, the one-way valve is located below the air exhaust bag, and the one-way valve only can intake air to the air exhaust bag.
Compared with the prior art, the invention has the beneficial effects that:
1. when smoke is detected, the air exhaust mechanism is used for continuously and quickly pumping outside air into the protective shell to be contacted with the smoke sensor, when a fire disaster happens, less smoke can be quickly pumped, the detection timeliness of the smoke sensor is improved, timely alarming and reminding personnel to process the fire disaster in time, large-scale fire disasters can be greatly avoided, the air inlet is opened and closed in a time interval in the air exhaust detection process by matching with the sealing mechanism located at the air inlet, the detection accuracy is improved, the air inlet can be continuously sealed when the personnel perform cooking or smoking and other operations, the detection is shielded, the phenomenon that wrong alarms are sent at the moment is avoided, the smoke detector is beneficial to use of the personnel, and the smoke detector is convenient and quick.
2. When the air pumping bag is exhausted by extruding the air pumping bag inwards by the driving of the extruding plate by the screw rod, the first slide rod is driven to synchronously move inwards, the first slide rod drives the first rack to move inwards through the L-shaped connecting plate, so that the first rack drives the fourth gear to rotate, the fourth gear drives the second rotating rod and the third gear at the bottom to rotate, the third gear drives the second gear ring meshed with the third gear ring to rotate, the second gear ring drives the first rotating ring and the plurality of sealing plates to rotate through the first connecting block, finally the plurality of sealing blocks are rotated to the outer sides of the plurality of air inlets, when the extruding plate moves to the innermost side, the air inlets are sealed, then, similarly, when the air pumping bag is pumped from the bottom, the first slide rod slides outwards to reversely drive the plurality of sealing plates to rotate, the sealing of the air inlets is opened, so that the air inlets can be rapidly pumped, the air is convenient and rapid, and can continuously block the air inlets, avoid in the small-size granule such as mosquito gets into the protecting crust from the air inlet, keep the inside smoke detector of protecting crust to keep comparatively clean state, make it detect the flue gas sensitively for a long time.
3. According to the invention, the third slide bar is connected in each sealing plate in a sliding manner, the first baffle disc and the third slide bar are pulled by the tensioning spring sleeved on the outer surface of the third slide bar to extrude the brush plate positioned on the inner side of the sealing plate, so that the brush plate is tightly close to the outer side wall of the protective shell, and the air inlet is brushed and cleaned in the process that the sealing plate is driven to rotate rapidly, thereby ensuring the cleanness of the air inlet, avoiding the influence of dust accumulated on the air inlet on the detection of a smoke generator, and being beneficial to improving the accuracy of the detection.
Drawings
FIG. 1 is a first perspective view of the general construction of the present invention;
FIG. 2 is a second perspective view of the general construction of the present invention;
FIG. 3 is a third perspective cross-sectional view of the general construction of the invention;
FIG. 4 is a fourth perspective view of the general construction of the present invention (with the retaining ring hidden);
FIG. 5 is a schematic view of the position of the protective housing and smoke sensor of the present invention;
FIG. 6 is a schematic view of the seal plate structure of the present invention;
FIG. 7 is a schematic view of the structure of the brush plate inside the sealing plate according to the present invention;
fig. 8 is a schematic position diagram of the annular shield and the first connecting block of the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
the smoke detector comprises a protective shell 1, a smoke detector 2, an air inlet 3, an air exhaust pipe 4, an air exhaust bag 5, an exhaust valve 6, an extrusion plate 7, a screw rod 8, a first sliding rod 9, a fixing ring 10, a servo motor 11, a first gear 12, a second gear 13, a rotating toothed ring 14, a sealing plate 15, a first rotating ring 16, a first connecting block 17, a second toothed ring 18, a second fixing block 19, a second rotating rod 20, a third gear 21, a fourth gear 22, an L-shaped connecting frame 23, a first rack 24, a third sliding rod 25, a first blocking disc 26, a tensioning spring 27, a hairbrush plate 28, an annular protective cover 29, a mounting plate 30 and a one-way valve 31.
Detailed Description
Referring to fig. 1-8, the present invention provides a technical solution: a combined fire detector convenient to assemble comprises a protective shell 1 and a smoke sensor 2, wherein the smoke sensor 2 is fixedly connected to the inner side of the protective shell 1, a plurality of air inlets 3 distributed in a circumferential array mode are formed in the side wall of the bottom of the protective shell 1, the protective shell 1 is connected with a suction mechanism used for rapidly driving outside air to enter from the air inlets 3 and accelerating air flow, the outer side wall of the protective shell 1 is connected with a sealing mechanism used for sealing the air inlets 3, and the sealing mechanism is opened when the suction mechanism exhausts air from the air inlets 3 and rapidly brushes and cleans the positions of the air inlets 3 when the suction mechanism exhausts air;
the suction mechanism comprises an exhaust tube 4, the exhaust tube 4 is fixedly communicated with the top of the protective shell 1, the top end of the exhaust tube 4 is fixedly communicated with an air exhaust bag 5, the top of the air exhaust bag 5 is fixedly communicated with an exhaust valve 6 which can exhaust air only outwards, the outer side wall of the air exhaust bag 5 is fixedly connected with a plurality of extrusion plates 7, the outer side wall of each extrusion plate 7 is rotatably connected with a lead screw 8, the outer side wall of each extrusion plate 7 is fixedly connected with a first slide bar 9, the first slide bars 9 are jointly and slidably connected with a fixing ring 10, the lead screw 8 penetrates through and is slidably connected with the fixing ring 10, and the bottom of the fixing ring 10 is connected with a driving mechanism which can drive the four lead screws 8 to move inwards or outwards simultaneously;
the driving mechanism comprises a servo motor 11, the servo motor 11 is fixedly connected to the outer side wall of the fixing ring 10, the output shaft end of the servo motor 11 is fixedly connected with a first gear 12, the inner side wall of the fixing ring 10 is rotatably connected with a plurality of second gears 13 distributed in a circumferential array, the second gears 13 are meshed with one first gear 12, the screw rod 8 penetrates through the second gears 13 and is in threaded connection with the second gears 13, the bottom of the fixing ring 10 is rotatably connected with a rotating gear ring 14, and the rotating gear ring 14 is meshed with the plurality of second gears 13;
when a fire disaster just starts to happen, smoke generated by fire disaster combustion can float along with gas, but the fire disaster just starts to happen at the moment, the generated smoke is less, a general fire detector can send out an alarm for alarming when the gas floats into the gas, when the device happens, the servo motor 11 is continuously started in a time-phased manner to drive the first gear 12 to rotate, the first gear 12 drives the second gear 13 to be meshed with the first gear to rotate, the second gear 13 drives other second gears 13 to synchronously rotate through the rotating toothed ring 14, the second gears 13 synchronously drive the screw rod 8 to move outwards to enable the first sliding rod 9 to slide outwards, meanwhile, the extrusion plates 7 move outwards, the extrusion plates 7 simultaneously move outwards to pull the air pumping bag 5, the exhaust valve 6 at the top in the air pumping bag 5 only can exhaust air and cannot exhaust air, and at the moment, in the process that the air pumping bag 5 is rapidly pulled, the air pumping bag 5 is communicated with the protective shell 1 through the air pumping pipe 4, and finally, external air can only be pumped in from the air inlet 3 at the bottom of the protective shell 1, at the moment, the bottom sealing mechanism is in an open state to avoid interference with air pumping action, so that the external air can rapidly flow into the protective shell 1, when a fire disaster just begins to happen, smoke is rapidly pumped into the protective shell 1, the smoke sensor 2 can rapidly detect the fire disaster at the initial stage, so as to give out an alarm, and is beneficial to timely handling the fire disaster when the fire disaster is small, after the air pumping of the air pumping bag 5 is finished, the servo motor 11 drives the first gear 12 to rotate reversely, similarly, the reverse driving screw rod 8 and the plurality of pressure plates simultaneously move inwards, so that the smoke in the air pumping bag 5 is rapidly discharged from the exhaust valve 6 at the top, and meanwhile, in the process that the first slide rod 9 moves outwards, the first slide rod 9 drives the sealing mechanism to drive the bottom sealing mechanism to rotate to seal the air inlets 3, the air inlet 3 is prevented from being exposed in the air for a long time and excessive dust is prevented from being accumulated, the servo motor 11 continuously drives the air pumping bag 5 to pump air and exhaust, so that the smoke detection can be continuously and rapidly carried out on the outside, and in the working process of generating a large amount of smoke, such as cooking or smoking, and the like, a resident can close the servo motor 11, after the air pumping bag 5 is pulled open by the servo motor 11, the air inlet 3 is sealed by the sealing mechanism at the moment, so that the smoke sensor 2 is prevented from giving an alarm when cooking or smoking, the situation of false alarm is avoided, the operation of personnel is facilitated, so that when each smoke is detected, the outside air is continuously and rapidly pumped into the protective shell 1 by the air pumping mechanism to be contacted with the smoke sensor 2, when a fire disaster happens, less smoke can be rapidly pumped in, and the detection timeliness of the smoke sensor 2 is improved, in time report to the police and remind personnel in time to handle the conflagration, can greatly avoid the emergence of large-scale conflagration, and the cooperation is located the sealing mechanism of air inlet 3, make 3 periods of air inlet open and closed in the testing process of bleeding, improve the accuracy that detects, can seal air inlet 3 continuously when personnel cook or smoke extraction etc. operation, the shielding detects, avoid sending wrong alarm this moment, be favorable to personnel to use, convenient and fast.
As a further scheme of the invention, the sealing mechanism comprises a plurality of sealing plates 15, the plurality of sealing plates 15 are circumferentially distributed and arrayed on the outer side wall of the protective shell 1, an air inlet 3 is arranged between two adjacent sealing plates 15, the top ends of the plurality of sealing plates 15 are fixedly connected with a first rotating ring 16 together, the outer side wall of the first rotating ring 16 is fixedly connected with a plurality of first connecting blocks 17, the top ends of the plurality of first connecting blocks 17 are fixedly connected with a second gear ring 18 together, the second gear ring 18 is rotatably connected on the outer surface of the protective shell 1, and the outer side wall of the protective shell 1 is connected with a rotating mechanism for driving the second gear ring 18 to rotate when the air exhaust bag 5 exhausts air;
the rotating mechanism comprises a plurality of second fixing blocks 19, a second rotating rod 20 is rotatably connected inside each second fixing block 19, the bottom end of each second rotating rod 20 is fixedly connected with a third gear 21, the plurality of third gears 21 are meshed with the second gear ring 18 in the opposite direction, the top end of each second rotating rod 20 is fixedly connected with a fourth gear 22, the outer surface of each first sliding rod 9 is fixedly connected with an L-shaped connecting frame 23, the bottom end of each L-shaped connecting frame 23 is fixedly connected with a first rack 24, and the first rack 24 is meshed with the fourth gear 22;
when the air exhaust bag sealing device works, because the sealing mechanism needs to be opened when air exhaust is performed, the sealing mechanism is sealed when air exhaust is performed, when the extrusion plate 7 is driven by the lead screw 8 to extrude the air exhaust bag 5 inwards to exhaust, the first slide rod 9 is driven to move inwards synchronously, the first slide rod 9 drives the first rack 24 to move inwards through the L-shaped connecting plate, so that the first rack 24 drives the fourth gear 22 to rotate, the fourth gear 22 drives the second rotating rod 20 and the third gear 21 at the bottom to rotate, the third gear 21 drives the second toothed ring 18 meshed with the third gear to rotate, the second toothed ring 18 drives the first rotating ring 16 and the plurality of sealing plates 15 to rotate through the first connecting block 17, finally the plurality of sealing blocks rotate to the outer sides of the plurality of air inlets 3, when the extrusion plate 7 moves to the innermost side, the air inlets 3 are sealed, then, when the air exhaust bag 5 performs air exhaust from the bottom, the first slide rod 9 slides outwards similarly, reverse drive a plurality of closing plates 15 and rotate, open the sealed to air inlet 3, make air inlet 3 can admit air fast, convenient and fast to can constantly block air inlet 3, avoid mosquito and so on small-size granule etc. to get into protecting crust 1 from air inlet 3 in, keep the cigarette sensor 2 of protecting crust 1 inside to keep comparatively clean state, make it detect the flue gas sensitively for a long time.
As a further scheme of the invention, a plurality of third slide bars 25 are connected with each sealing plate 15 in a sliding manner, a first baffle disc 26 is fixedly connected with the outer end of each third slide bar 25, a tensioning spring 27 fixedly connected between the first baffle disc 26 and the sealing plate 15 is sleeved on the outer surface of each third slide bar 25, a brush plate 28 is fixedly connected with the inner ends of the plurality of third slide bars 25 on the same side together, and the brush plate 28 is positioned on the driving outer side of the protective shell 1; the during operation, because in the air inlet 3 continuously from the external air bleed in-process, dust in the outside air can be piled up at air inlet 3 continuously, cause easily and pile up a large amount of impurity, the influence is admitted air, there is third slide bar 25 through equal sliding connection in every closing plate 15 inside, utilize the first fender dish 26 of taut spring 27 pulling and third slide bar 25 that the cover was established on the third slide bar 25 surface, the extrusion is located the inboard brush board 28 of closing plate 15, make brush board 28 near on the lateral wall at protecting crust 1, in-process at closing plate 15 driven fast rotation, it is clean to brush air inlet 3, guarantee air inlet 3 clean and tidy, avoid piling up the detection that the dust at air inlet 3 influences the smoke ventilator, be favorable to improving the accuracy that detects.
As a further scheme of the invention, an annular protective cover 29 is fixedly connected to the outer side wall of the protective shell 1, a plurality of second rotating rods 20 penetrate through the annular protective cover 29 and are rotatably connected with the annular protective cover 29, the annular protective cover 29 surrounds the second gear ring 18 and a plurality of third gears 21, and notches for the circumferential rotation of a plurality of first connecting blocks 17 are formed in the bottom of the annular protective cover 29; the during operation, because second ring gear 18 and a plurality of third gear 21 set up the outside at protecting crust 1, be caused the influence by the environment easily, can lead to its corrosion or the unsmooth condition of meshing, through the annular protection casing 29 at protecting crust 1 outer panel fixed connection, utilize annular protection casing 29 to protect second gear 13 and a plurality of third gear 21 simultaneously, avoid the external world to produce the influence to the meshing of second ring gear 18 and third gear 21, and annular protection casing 29 bottom inner does not contact with the protection casing, give a plurality of first connecting block 17 pivoted spaces, avoid influencing the circumferential rotation of first connecting block 17, be favorable to guaranteeing the long-time use of this device.
As a further scheme of the present invention, the bottom of the fixing ring 10 is fixedly connected with a mounting plate 30, and a plurality of threaded openings are formed inside the mounting plate 30; during operation, because generally need install the flue gas ware on indoor roof, through at solid fixed ring 10 top fixed connection's mounting panel 30, utilize mounting panel 30 to fix this device on the roof stably and fast, convenient and fast.
As a further scheme of the invention, the inner side wall of the exhaust tube 4 is fixedly connected with a one-way valve 31, the one-way valve 31 is positioned below the air exhaust bag 5, and the one-way valve 31 can only intake air to the air exhaust bag 5; during operation, because when the exhaust gas is extruded to air exhaust bag 5, gas can flow into protecting crust 1 again from exhaust tube 4 of bottom, cause the secondary influence, can influence the accuracy of next time inspiratory external air, through the inboard fixedly connected with check valve 31 at exhaust tube 4, utilize check valve 31 control gas only to advance to flow in the air exhaust bag 5 from protecting crust 1 inboard, thereby avoid the gas reflux of air exhaust bag 5, avoid influencing the testing result, improve the accuracy that detects.
Claims (9)
1. The utility model provides a be convenient for assembled combination formula fire detector, includes protecting crust (1) and smoke detector (2), smoke detector (2) fixed connection is inboard at protecting crust (1), its characterized in that: set up a plurality of air inlets (3) that are circumference array distribution on protective housing (1) bottom lateral wall, protective housing (1) is connected with and is used for driving the suction mechanism that the air flow with higher speed that the external air got into from air inlet (3) fast, be connected with on protective housing (1) lateral wall and be used for carrying out the sealing mechanism sealed to a plurality of air inlets (3), sealing mechanism opens when suction mechanism bleeds from air inlet (3) and brushes the cleanness to air inlet (3) position fast when giving vent to anger.
2. A modular fire detector of a type which is easy to assemble as defined in claim 1, wherein: the suction mechanism comprises an air suction pipe (4), the air suction pipe (4) is fixedly communicated with the top of the protective shell (1), the top end of the exhaust tube (4) is fixedly communicated with an exhaust bag (5), the top of the exhaust bag (5) is fixedly communicated with an exhaust valve (6) which can only exhaust outwards, the outer side wall of the air pumping bag (5) is fixedly connected with a plurality of extrusion plates (7), the outer side wall of each extrusion plate (7) is rotatably connected with a screw rod (8), and the outer side wall of each extrusion plate (7) is fixedly connected with a first sliding rod (9), a plurality of first sliding rods (9) are jointly connected with a fixed ring (10) in a sliding way, the screw rod (8) penetrates through the fixing ring (10) and is in sliding connection with the fixing ring, and a driving mechanism which is used for driving the four screw rods (8) to move inwards or outwards simultaneously is connected to the bottom of the fixing ring (10).
3. A modular fire detector of a type which is easy to assemble as defined in claim 2, wherein: actuating mechanism includes servo motor (11), servo motor (11) fixed connection is on the lateral wall of solid fixed ring (10), the output shaft fixedly connected with first gear (12) of servo motor (11), rotate on solid fixed ring (10) inside wall and be a plurality of second gear (13) that are the circumference array and distribute, second gear (13) and one of them first gear (12) mesh mutually, just lead screw (8) run through second gear (13) and rather than threaded connection, gu fixed ring (10) bottom is rotated and is connected with and rotates ring gear (14), rotate ring gear (14) and a plurality of second gear (13) mesh mutually.
4. A modular fire detector of a type which is easy to assemble as defined in claim 2, wherein: sealing mechanism includes a plurality of closing plates (15), and is a plurality of closing plate (15) are the circumference and distribute the array on the lateral wall of protecting crust (1), and adjacent two there is an air inlet (3), a plurality of closing plate (15) top is first rotating ring (16) of the common fixedly connected with, a plurality of first connecting blocks (17) of fixedly connected with on the first rotating ring (16) lateral wall, and is a plurality of first connecting block (17) top is common fixedly connected with second ring gear (18), second ring gear (18) rotate to be connected on the surface of protecting crust (1), be connected with on the lateral wall of protecting crust (1) and be used for driving second ring gear (18) pivoted slewing mechanism when bleeding bag (5) and give vent to anger.
5. A modular fire detector of a type which is easy to assemble as defined in claim 4, wherein: slewing mechanism includes a plurality of second fixed blocks (19), every second fixed block (19) inside all rotates and is connected with second bull stick (20), every second bull stick (20) bottom equal fixedly connected with third gear (21), a plurality of third gear (21) all with second ring gear (18) to the meshing, every the top fixedly connected with fourth gear (22) of second bull stick (20), every equal fixedly connected with L type link (23), every on first slide bar (9) surface the equal fixedly connected with first rack (24) in L type link (23) bottom, first rack (24) mesh with fourth gear (22) mutually.
6. A modular fire detector of a type which is easy to assemble as defined in claim 4, wherein: every sealing plate (15) inside all runs through have rather than sliding connection have a plurality of third slide bars (25), every the first fender dish (26) of the equal fixedly connected with in third slide bar (25) outer end, every all overlap on third slide bar (25) surface and be equipped with straining spring (27) of fixed connection between first fender dish (26) and sealing plate (15), the homonymy is a plurality of the common fixedly connected with brush board (28) in third slide bar (25) inner, brush board (28) are located protecting crust (1) and drive the outside.
7. A modular fire detector of a type which is easy to assemble as defined in claim 5, wherein: fixedly connected with annular protection casing (29), a plurality of on protecting crust (1) lateral wall second bull stick (20) all run through annular protection casing (29) and with rotate and be connected, second ring gear (18) and a plurality of third gear (21) are surrounded in annular protection casing (29), supply a plurality of first connecting block (17) circumference pivoted notch has been seted up to annular protection casing (29) bottom.
8. A modular fire detector of a type which is easy to assemble as defined in claim 3, wherein: the bottom fixedly connected with mounting panel (30) of solid fixed ring (10), a plurality of screw threads mouth have been seted up to mounting panel (30) inside.
9. A modular fire detector of a type which is easy to assemble as defined in claim 2, wherein: the air suction device is characterized in that a one-way valve (31) is fixedly connected to the inner side wall of the air suction pipe (4), the one-way valve (31) is located below the air suction bag (5), and the one-way valve (31) can only feed air into the air suction bag (5).
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| CN114387756B (en) | 2023-12-26 |
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