CN117975649A - Fire alarm device and system - Google Patents
Fire alarm device and system Download PDFInfo
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- CN117975649A CN117975649A CN202410361322.2A CN202410361322A CN117975649A CN 117975649 A CN117975649 A CN 117975649A CN 202410361322 A CN202410361322 A CN 202410361322A CN 117975649 A CN117975649 A CN 117975649A
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- 239000000779 smoke Substances 0.000 claims abstract description 137
- 238000012544 monitoring process Methods 0.000 claims abstract description 27
- 238000009434 installation Methods 0.000 claims description 13
- 238000012545 processing Methods 0.000 claims description 12
- 230000000149 penetrating effect Effects 0.000 claims description 10
- 230000001360 synchronised effect Effects 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 5
- 230000008859 change Effects 0.000 claims description 5
- 230000000694 effects Effects 0.000 claims description 5
- 230000035945 sensitivity Effects 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims description 3
- 230000002776 aggregation Effects 0.000 claims description 2
- 238000004220 aggregation Methods 0.000 claims description 2
- 238000009529 body temperature measurement Methods 0.000 claims description 2
- 238000004140 cleaning Methods 0.000 claims description 2
- 239000003517 fume Substances 0.000 claims 2
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000391 smoking effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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Abstract
The invention relates to the technical field of fire alarm devices, and provides a fire alarm device and a fire alarm system, wherein the fire alarm device comprises: the smoke exhaust pipe is of a tubular structure which is penetrated up and down, the smoke alarm unit is arranged on the inner side of the smoke exhaust pipe and comprises a shell, an inclined surface is arranged on the shell, a conical cover is arranged at the bottom of the shell, a smoke alarm is arranged in the conical cover, a plurality of smoke inlets are formed in the conical cover, and a plurality of air guide pipes are penetrated on the shell; the infrared thermometer is arranged on the smoke exhaust pipe; the fan unit is arranged in the smoke exhaust pipe and is located at the lower side of the smoke alarm unit, the smoke exhaust pipe comprises a rotating shaft, the rotating shaft is hollow, the smoke exhaust pipe is arranged below the rotating shaft through a connecting frame, the upper end of the rotating shaft is connected with a power component, the lower end of the rotating shaft is provided with a fan blade, the middle part of the rotating shaft is provided with a wiping component, and one end of the wiping component, far away from the rotating shaft, is provided with a wiping block for wiping a temperature measuring end head of the infrared thermometer. The invention can quickly and timely find out the dangerous case of the fire disaster in the initial stage of the fire disaster, can carry out secondary monitoring and improves the accuracy and the practicability of the fire disaster monitoring.
Description
Technical Field
The invention relates to the technical field of fire alarm devices, in particular to a fire alarm device and a fire alarm system.
Background
The fire alarm system, also called fire automatic alarm system, is composed of trigger device, fire alarm device, linkage output device and other auxiliary function devices, and can change the physical quantity of smoke, heat and flame produced by combustion into electric signal by means of fire detector at the initial stage of fire, and can be transferred into fire alarm controller, and can display the place and time of fire occurrence, etc. so that the fire can be timely found by people, and can timely take effective measures to extinguish initial fire, and maximally reduce the loss of life and property resulted from fire.
In the use process of the transmission fire alarm, the transmission fire alarm is usually installed at the upper end far away from the ground in a monitored area, and a fire source is usually generated on the ground, so that in the initial stage of a fire disaster, when the flame is not increased and only smoke is generated, a certain height difference exists between the smoke and the alarm, and the smoke can cause delay when the smoke floats upwards to the alarm, so that the alarm cannot timely and effectively detect the fire, and the optimal fire extinguishing time is delayed.
Therefore, in order to solve the above problems, a fire alarm device and a fire alarm system are provided.
Disclosure of Invention
Aiming at the defects of the prior art, the invention develops a fire alarm device and a fire alarm system, which can quickly and timely find out the dangerous situation of a fire disaster at the initial stage of the fire disaster, can carry out secondary monitoring, avoid the occurrence of false alarm, improve the accuracy and the practicability of fire disaster monitoring, quickly discharge smoke at the middle stage of the fire disaster and improve the space visibility.
The invention aims to achieve the aim, and the aim is achieved by the following technical scheme:
a fire alarm device comprising:
the smoke exhaust pipe is a tubular structure which is penetrated up and down,
The smoke alarm unit is arranged on the inner side of the smoke exhaust pipe and comprises a shell, an inclined surface is arranged on the shell, a conical cover is arranged at the bottom of the shell, a smoke alarm is arranged in the conical cover and used for smoke monitoring and alarm, a plurality of smoke inlets are formed in the conical cover, a plurality of air guide pipes are arranged on the shell in a penetrating mode, and the tail ends of the air guide pipes penetrate through the inclined surface;
the infrared thermometer is arranged on the smoke exhaust pipe and used for monitoring a heat source in the detection area;
The fan unit is arranged in the smoke exhaust pipe and is positioned at the lower side of the smoke alarm unit, the smoke exhaust pipe comprises a rotating shaft, the rotating shaft is hollow, the rotating shaft is movably arranged below the smoke exhaust pipe through a connecting frame, the upper end of the rotating shaft is connected with a power component, the lower end of the rotating shaft is provided with a fan blade, the middle part of the rotating shaft is provided with a wiping component, one end of the wiping component, which is far away from the rotating shaft, is provided with a wiping block, and the wiping block rotates along with the rotating shaft and is used for wiping a temperature measuring end head of the infrared thermometer.
As the preference, clean the subassembly and include the sleeve, sleeve inside cavity, telescopic one end setting is in the pivot, rotate along with the pivot, and with the inside intercommunication of pivot, the sleeve other end slides and sets up the slide bar, set up the spring between slide bar and sleeve, the slide bar is kept away from telescopic one end and is set up the mounting panel, set up on the mounting panel and clean the piece, when the pivot rotates slowly, the slide bar receives the power of spring can not roll-off sleeve, when the pivot rotates fast, the centrifugal force that the slide bar received is greater than the elasticity of spring, the slide bar roll-off sleeve for clean the piece to the temperature measurement end of infrared thermometer and clean, improved the accuracy of device.
Preferably, the smoke collecting device further comprises a valve component, the valve component comprises a sheet valve, the sheet valve is rotatably arranged on the inner side of the smoke exhaust pipe and is located above the smoke alarm unit, a collecting cavity is formed between the sheet valve and the smoke alarm unit and used for collecting smoke in the initial stage of fire, the smoke alarm is more accurate to monitor, and the practicability of the smoke collecting device is improved.
As the preference, the sheet valve is movably arranged on the inner side of the smoke exhaust pipe through the first connecting shaft and the second connecting shaft, the axes of the first connecting shaft and the second connecting shaft are the same straight line and pass through the axis of the smoke exhaust pipe, the torsion spring is sleeved on the second connecting shaft, the two ends of the torsion spring are respectively connected with the smoke exhaust pipe and the second connecting shaft, and the sheet valve is in a horizontal state when the torsion spring is not stressed, so that the stability of the device is improved.
Preferably, the valve assembly further comprises a first rope and a second rope, one ends of the first rope and the second rope are connected with each other, a connecting hole is formed in one side, located at the center axis, of the sheet valve, one end, away from the first rope, of the second rope is connected with the sheet valve through the connecting hole, a rope penetrating hole is formed in the middle of the shell in a penetrating mode, the second rope penetrates through the rope penetrating hole, one end, away from the second rope, of the first rope penetrates through the inside of the rotating shaft and the inside of the sleeve and then is connected with the sliding rod, and the sliding rod is used for pulling the sheet valve to rotate to open the gathering cavity, so that the practicability of the device is improved.
Preferably, the installation groove is formed in the rotating shaft, guide wheels are symmetrically arranged in the installation groove about the axis of the sleeve, the first rope is wound on the guide wheels to adapt to the relative position of the rotating shaft and the sleeve, the pulling force direction of the first rope is changed, and the stability of the device is improved.
Preferably, the inside draw-in groove that still sets up of pivot, the length direction of draw-in groove is parallel to each other with the axis of pivot, and the slip sets up the fixture block in the draw-in groove, and the fixture block setting is in the installation piece outside, and the installation piece slides and sets up in the pivot and the installation piece is connected with the one end that the slide bar was kept away from to first rope, and the installation piece rotation sets up rotatory piece, and rotatory piece is connected with the one end that the piece formula valve was kept away from to the second rope, has improved the security of device.
Preferably, the power assembly comprises a motor, the motor is arranged on a mounting frame, the mounting frame is arranged on the outer side of the smoke exhaust pipe, the output end of the motor is connected with the rotating shaft through a synchronous belt, and the synchronous belt penetrates through the pipe wall of the smoke exhaust pipe and is used for driving the rotating shaft to rotate so as to drive the fan to rotate.
Preferably, the inner wall of the smoke exhaust pipe is provided with a plurality of plug blocks, the joint of the shell and the inner wall of the smoke exhaust pipe is provided with a plurality of plug posts corresponding to the plug blocks, the plug posts and the plug blocks are correspondingly plugged, the disassembly and the inspection of the smoke alarm unit are facilitated, and the practicability of the device is improved.
The invention also provides a system of the fire alarm device, comprising the fire alarm device, and further comprising:
The adjusting module is arranged in the shell, is electrically connected with the smoke alarm and is used for adjusting the sensitivity of the smoke alarm;
the processing module is electrically connected with the smoke alarm and the infrared thermometer and is used for processing the data monitored by the smoke alarm and the infrared thermometer;
the analysis module is used for analyzing and comparing measured data before and after wiping the temperature measuring end head of the infrared thermometer by the wiping block;
and the transmission module is connected with the adjusting module, the processing module, the analysis module and the terminal equipment and is used for uploading the data processed by the processing module and the data analyzed by the analysis module to the terminal equipment for alarming and early warning.
The effects provided in the summary of the invention are only effects of the embodiments, not all effects of the invention, and the above technical solution has the following advantages:
1. According to the invention, by arranging the smoke alarm and the infrared thermometer, dual monitoring and alarming of fire protection are realized, the fire state is effectively monitored, and by arranging the fan unit, the rotating speed can be timely adjusted according to the fire conditions monitored by the smoke alarm and the infrared thermometer, and in different rotating speeds, smoke is sucked to the smoke alarm at the early stage of the fire, the alarming timeliness is improved, and in the middle stage of the fire, scattered smoke is concentrated through the rapid rotation of the fan blade and discharged through the smoke discharge pipe, and in addition, the smoke is also concentrated to avoid shielding the temperature measuring end head of the infrared thermometer, so that the continuity of fire monitoring is ensured, and the device monitoring accuracy is improved;
2. According to the invention, the valve component is arranged, the opening and closing degree of the sheet valve of the valve component is related to the rotating speed of the fan unit fan, and the opening angle of the sheet valve in the smoke exhaust pipe can be automatically adjusted according to different rotating speeds of the rotating shaft, so that the efficiency and the practicability of the device are improved;
3. According to the invention, by arranging the wiping component, the rotary repeated wiping of the temperature measuring end head of the infrared thermometer is realized in time when fire and smoke are overlarge, and the influence of dust and the like in the smoke on the temperature measuring end head on the monitoring of the temperature is avoided, so that the fire condition can be better judged; meanwhile, the wiping block can cover the temperature measuring end of the infrared thermometer during wiping, so that the infrared thermometer can be temporarily suspended for monitoring in the covering period of the wiping block, two groups of data can be generated in the front and rear period covered by the wiping block, the data of the temperature monitored in the front and rear period covered by the wiping block can be compared by analyzing the two groups of data, the state of fire is analyzed, meanwhile, the data of the temperature monitored in the front and rear period covered by the wiping block are compared, if the infrared thermometer works normally, the data of the temperature monitored in the front and rear period covered by the wiping block are different, the working state of the infrared thermometer can be self-detected by utilizing the characteristics, and the infrared thermometer is prevented from faults.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention.
FIG. 1 is a schematic view of the structural position in a smoke exhaust pipe according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a connection structure of a first rope and a second rope according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of the overall structure of an embodiment of the present invention;
FIG. 4 is a schematic view of a fan blade according to an embodiment of the present invention;
FIG. 5 is a schematic view of the position structure of a sheet valve according to an embodiment of the present invention;
FIG. 6 is an enlarged view at A in FIG. 5;
fig. 7 is a schematic view of a bottom side elevation view of an embodiment of the present invention.
In the figure, 1, a shell; 11. a conical cover; 12. an inclined surface; 13. a smoke inlet; 14. an air guide pipe; 15. threading the rope hole; 16. a plug block; 17. a plug-in column; 2. a connecting frame; 21. a rotating shaft; 211. a mounting groove; 212. a guide wheel; 22. a fan blade; 23. a motor; 231. a mounting frame; 232. a synchronous belt; 24. a sleeve; 241. a spring; 25. a slide bar; 251. a mounting plate; 252. a wipe block; 26. a first rope; 261. a mounting block; 262. a rotating block; 263. a clamping block; 27. a second rope; 271. a connection hole; 3. an infrared thermometer; 4. a smoke exhaust pipe; 41. a sheet valve; 42. a first connecting shaft; 43. a second connecting shaft; 431. a torsion spring; 5. a collection chamber.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
As shown in fig. 1 to 7, a fire alarm device includes: the smoke exhaust pipe 4 is of a tubular structure which is vertically communicated, the smoke exhaust pipe 4 is arranged on the inner side of the smoke exhaust pipe 4 and comprises a shell 1, an inclined surface 12 is arranged on the shell 1, a conical cover 11 is arranged at the bottom of the shell 1, a smoke alarm is arranged in the conical cover 11 and used for smoke monitoring and alarming, and a plurality of smoke inlet 13 are formed in the circumference of the conical cover 11 and used for monitoring and alarming through the smoke alarm after smoke enters the conical cover 11 from the smoke inlet 13; a plurality of air guide pipes 14 are arranged on the shell 1 in a penetrating way, and the tail ends of the air guide pipes 14 penetrate through the inclined surfaces 12; the infrared thermometer 3 is arranged on the smoke exhaust pipe 4 and is used for monitoring a heat source in the detection area; the fan unit is arranged in the smoke exhaust pipe 4 and is positioned at the lower side of the smoke alarm unit, the smoke exhaust pipe comprises a rotating shaft 21, the rotating shaft 21 is arranged below the smoke exhaust pipe 4 in a hollow mode through the connecting frame 2, the connecting frame 2 is fixed at the lower side in the smoke exhaust pipe 4, the upper end of the rotating shaft 21 is connected with a power component, the lower end of the rotating shaft 21 is provided with a fan blade 22, when the infrared thermometer 3 monitors a heat source in the initial stage of a fire disaster, the fan blade 22 rotates, smoke is concentrated in the smoke exhaust pipe 4, and then the smoke alarm carries out secondary monitoring on the fire disaster or not, dual monitoring alarm is achieved, monitoring accuracy is ensured, the rotating speed of the fan is accelerated in the middle of the fire disaster after the fire disaster is confirmed to increase the smoking smoke force, a wiping component is arranged in the middle of the rotating shaft 21, one end of the wiping component, which is far away from the rotating shaft 21, is provided with a wiping block 252, and the wiping block 252 rotates along with the rotating shaft 21 and is used for wiping the end of the infrared thermometer 3.
In this embodiment, the wiping component includes a sleeve 24, the interior of the sleeve 24 is hollow, one end of the sleeve 24 is disposed on the rotating shaft 21, and rotates along with the rotating shaft 21, and is communicated with the interior of the rotating shaft 21, the other end of the sleeve 24 is slidably provided with a sliding rod 25, a spring 241 is disposed between the sliding rod 25 and the sleeve 24, one end of the sliding rod 25 far away from the sleeve 24 is provided with a mounting plate 251, a wiping block 252 is detachably disposed on the mounting plate 251, the length of the sliding rod 25 is determined according to the position of the temperature measuring end of the infrared thermometer 3, when the rotating shaft 21 rotates slowly, the sliding rod 25 is not slid out of the sleeve 24 under the force of the spring 241, and when the rotating shaft 21 rotates rapidly, the centrifugal force applied to the sliding rod 25 is greater than the elastic force of the spring 241, and the sliding rod 25 slides out.
In another embodiment, the spring 241 between the sleeve 24 and the slide bar 25 may be a tension spring or a compression spring, as long as the required function is achieved.
In this embodiment, when a fire starts to occur, the temperature of the fire point rises, smoke starts to be generated, and when the smoke starts to occur in an initial stage of the fire, the smoke concentration is smaller, and the diffusion area is smaller, so that the smoke alarm is difficult to monitor the occurrence of the fire in time, the temperature change of the fire point can be monitored in time by arranging the infrared thermometer 3, and then the occurrence of the fire can be monitored for the first time, when the infrared thermometer 3 monitors the occurrence of the fire, the rotating shaft 21 starts to rotate and drives the fan blade 22 to rotate for sucking, so that the smoke generated in the initial stage of the fire can be closer to and concentrated at the smoke alarm compared with the traditional alarm device, and further the fire is monitored for the second time; the infrared thermometer 3 and the smoke alarm are used for double monitoring of the fire disaster, so that whether the infrared thermometer 3 works normally can be further verified, and the fire disaster occurrence and the fire disaster state can be further verified by using the results measured by the smoke alarm and the infrared thermometer 3; when the fire situation is further expanded and reaches the condition that the fire has obvious fire in the middle stage of the fire, the smoke concentration is increased, the infrared thermometer 3 detects that the fire situation is larger, the rotating speed of the rotating shaft 21 is increased, so that the fan blade 22 is rapidly rotated, the suction efficiency is improved, the smoke can be sucked out of the installation area of the discharge device in the smoke discharge pipe 4, and the smoke concentration in the installation area is prevented from being too high; meanwhile, as the smoke concentration rises due to the fact that fire conditions are aggravated, when a part of combustible materials burn, the smoke contains dust and other substances, the substances can be attached to the temperature measuring end of the infrared thermometer 3, so that the temperature measuring end is covered, the monitoring of the infrared thermometer 3 on the temperature is affected, the fire conditions cannot be effectively and accurately judged by being matched with a smoke alarm, at the moment, the rotating shaft 21 can slide out of the sleeve 24 under the action of centrifugal force, the wiping block 252 arranged on the rotating shaft 21 can contact the temperature measuring end of the infrared thermometer 3, the wiping block 252 rotates along with the rotating shaft 21, the repeated wiping and cleaning of the temperature measuring end of the infrared thermometer 3 are realized, the temperature measuring end of the infrared thermometer 3 is kept clean and is not continuously shielded, the monitoring performance of the infrared thermometer 3 is further maintained, and the continuous monitoring of the fire conditions is realized; and when the fan blade 22 can concentrate the scattered smoke so as to reduce the shielding of the smoke on the temperature measuring end of the infrared thermometer 3, the monitoring on the fire condition is effectively improved.
In this embodiment, still include valve assembly, valve assembly includes piece formula valve 41, and piece formula valve 41 rotates to set up in the exhaust pipe 4 inboard, and is located smoke alarm unit top, forms between piece formula valve 41 and the smoke alarm unit and gathers chamber 5 for gather the smog of conflagration initial stage, the smog alarm of being convenient for in time monitors smog effectively.
In this embodiment, the sheet valve 41 is movably disposed inside the smoke exhaust pipe 4 through the first connecting shaft 42 and the second connecting shaft 43, the axes of the first connecting shaft 42 and the second connecting shaft 43 are in the same straight line and pass through the axis of the smoke exhaust pipe 4, the second connecting shaft 43 is sleeved with the torsion spring 431, two ends of the torsion spring 431 are respectively connected with the smoke exhaust pipe 4 and the second connecting shaft 43, and the sheet valve 41 is in a horizontal state when the torsion spring 431 is not stressed.
In another embodiment, the torsion spring 431 may also be sleeved on the first connecting shaft 42.
In this embodiment, the valve assembly further includes a first rope 26 and a second rope 27, one ends of the first rope 26 and the second rope 27 are rotatably connected to each other, so as to prevent the second rope 27 from winding when the rotating shaft 21 rotates, a connecting hole 271 is formed on one side of the sheet valve 41, which is located at the eccentric side of the central axis, one end of the second rope 27, which is far away from the first rope 26, is connected to the sheet valve 41 through the connecting hole 271, a rope penetrating hole 15 is formed in the middle of the housing 1, the second rope 27 penetrates through the rope penetrating hole 15, one end of the first rope 26, which is far away from the second rope 27, penetrates through the inside of the rotating shaft 21 and the inside of the sleeve 24, and then is connected to the slide bar 25, and the slide bar 25 is used for pulling the sheet valve 41 to rotate, so as to open the aggregation cavity 5.
In this embodiment, a mounting groove 211 is disposed in the rotating shaft 21, guide wheels 212 are disposed in the mounting groove 211 and vertically symmetrically about the axis of the sleeve 24, and the first rope 26 is wound on the guide wheels 212 to adapt to the relative position of the rotating shaft 21 and the sleeve 24, so as to change the pulling direction of the first rope 26.
In this embodiment, a clamping groove is further formed in the rotating shaft 21, the length direction of the clamping groove is parallel to the axis of the rotating shaft 21, a clamping block 263 is slidably arranged in the clamping groove, the clamping block 263 is arranged outside the mounting block 261, the mounting block 261 is slidably arranged in the rotating shaft 21, the mounting block 261 is connected with one end, far away from the sliding rod 25, of the first rope 26, a rotating block 262 is rotatably arranged in the mounting block 261, and one end, far away from the sheet valve 41, of the second rope 27 is connected with the rotating block 262.
In the present embodiment, the rotation speed of the rotation shaft 21 is generally in two states: one is the early stage of fire, the rotating shaft 21 rotates slowly, the other is the middle stage of fire, and the rotating shaft 21 rotates rapidly; when the rotating shaft 21 rotates slowly, the sliding rod 25 slides towards one end far away from the sleeve 24 under the action of centrifugal force of the rotating shaft 21 and pulls the spring 241, and when the rotating shaft 21 rotates slowly, the sliding rod 25 slides in the sleeve 24 to a certain extent under the action of centrifugal force, but at the moment, the first rope 26 and the second rope 27 cannot pull the sheet valve 41, so that the sheet valve 41 cannot deflect in the smoke exhaust pipe 4, and the smoke exhaust pipe 4 is still in a blocking state above the smoke alarm; when the rotating shaft 21 rotates rapidly, the centrifugal force of the rotating shaft 21 increases, the sliding distance of the sliding rod 25 in the sleeve 24 increases, the sliding rod 25 pulls the first rope 26 and the second rope 27, the second rope 27 pulls the sheet valve 41 downwards, and the connection part of the second rope 27 and the sheet valve 41 is positioned at the eccentric side of the central axis of the sheet valve 41, so that the first rope 26 and the second rope 27 can pull the sheet valve 41 to deflect under the change of a shorter stroke, and the upper part of the smoke exhaust pipe 4 is opened; the device can automatically adjust the angle of the sheet valve 41 in the smoke exhaust pipe 4 under the condition of different rotating speeds of the rotating shaft 21, thereby achieving the required effect according to the requirement; meanwhile, the mounting block 261 is limited in the rotating shaft 21 through the clamping block 263, so that the mounting block 261 can only slide up and down in the rotating shaft 21; the torsion spring 431 and the spring 241 are used for automatically resetting the sheet valve 41 when the rotating shaft 21 rotates slowly; the air guide duct 14 facilitates rapid evacuation of smoke when the flap valve 41 is in the open state.
In this embodiment, the power assembly includes a motor 23, the motor 23 is disposed on a mounting frame 231, the mounting frame 231 is disposed on the outer side of the smoke exhaust pipe 4, an output end of the motor 23 is connected with the rotating shaft 21 through a synchronous belt 232, and the synchronous belt 232 penetrates through a pipe wall of the smoke exhaust pipe 4 to drive the rotating shaft 21 to rotate, so as to drive the fan to rotate.
In this embodiment, the inner wall of the smoke exhaust pipe 4 is provided with a plurality of plug-in blocks 16, and the connection part between the shell 1 and the inner wall of the smoke exhaust pipe 4 is provided with a plurality of plug-in columns 17 corresponding to the plug-in blocks 16, so that the plug-in columns 17 and the plug-in blocks 16 are correspondingly plugged in order to facilitate quick installation and disassembly and convenient maintenance and inspection.
In this embodiment, still include control assembly, control assembly electricity connects smoke alarm, infrared thermometer 3 and motor 23 for according to monitoring result control motor 23's rotational speed, improved the practicality of device.
Example two
A system of fire alarm devices comprising a fire alarm device as described above, further comprising:
The adjusting module is arranged in the shell 1, is electrically connected with the smoke alarm and is used for adjusting the sensitivity of the smoke alarm, and the monitoring sensitivity of the smoke alarm is adjusted through the adjusting module, so that false alarm can be avoided in the use process;
The processing module is electrically connected with the smoke alarm and the infrared thermometer 3 and is used for processing data monitored by the smoke alarm and the infrared thermometer 3, and the smoke alarm monitors, analyzes and processes the smoke concentration and the infrared thermometer 3 analyzes and processes the monitored temperature;
The analysis module is used for analyzing and comparing measured data before and after wiping the temperature measuring end of the infrared thermometer 3 by the wiping block 252, when the rotating shaft 21 rotates rapidly, the wiping block 252 covers the temperature measuring end of the infrared thermometer 3 when the infrared thermometer 3 is wiped by the wiping block 252, so that the infrared thermometer 3 can be in suspension monitoring during the covering period of the wiping block 252, two groups of data can be generated during the covering period of the wiping block 252, the analysis module can compare the data of the temperature monitored during the covering period of the wiping block 252, further analyze the state of fire, and compare the data of the temperature monitored during the covering period, if the infrared thermometer 3 works normally, the data of the temperature monitored during the covering period of the wiping block 252 are different, and the working state of the infrared thermometer 3 is self-detected by utilizing the characteristics, so that the fault of the infrared thermometer 3 is avoided;
the transmission module is connected with the adjusting module, the processing module, the analysis module and the terminal equipment in a wired or wireless way and is used for uploading the data processed by the processing module and the data analyzed by the analysis module to the terminal equipment for alarming and early warning.
The present invention is not limited to the conventional technical means known to those skilled in the art.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, whereby a feature defining "first," "second," or the like, may explicitly or implicitly include one or more such feature, and in the description of the present invention, a "plurality" means two or more, unless otherwise specifically limited.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present invention, and the present invention is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present invention has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A fire alarm device, comprising:
A smoke exhaust pipe (4), the smoke exhaust pipe (4) is a tubular structure which is penetrated up and down,
The smoke alarm unit is arranged on the inner side of the smoke exhaust pipe (4) and comprises a shell (1), an inclined surface (12) is arranged on the shell (1), a conical cover (11) is arranged at the bottom of the shell (1), a smoke alarm is arranged in the conical cover (11) and used for smoke monitoring and alarming, a plurality of smoke inlet (13) are formed in the conical cover (11), a plurality of air guide pipes (14) are arranged on the shell (1) in a penetrating mode, and the tail ends of the air guide pipes (14) penetrate through the inclined surface (12);
the infrared thermometer (3) is arranged on the smoke exhaust pipe (4) and is used for monitoring a heat source in the detection area;
fan unit sets up in fume exhaust pipe (4) and is located smog alarm unit downside, including pivot (21), the inside cavity of pivot (21), pivot (21) are through link (2) activity setting in fume exhaust pipe (4) below, power component is connected to pivot (21) upper end, pivot (21) lower extreme sets up fan blade (22), pivot (21) middle part sets up and cleans the subassembly, the one end that pivot (21) was kept away from to the subassembly of cleaning sets up and cleans piece (252), it rotates along with pivot (21) to clean piece (252) for the temperature measurement end to infrared thermometer (3).
2. The fire alarm device of claim 1, wherein: the wiping component comprises a sleeve (24), the sleeve (24) is hollow, one end of the sleeve (24) is arranged on a rotating shaft (21), rotates along with the rotating shaft (21) and is communicated with the inside of the rotating shaft (21), a sliding rod (25) is arranged at the other end of the sleeve (24) in a sliding mode, a spring (241) is arranged between the sliding rod (25) and the sleeve (24), a mounting plate (251) is arranged at one end, far away from the sleeve (24), of the sliding rod (25), and a wiping block (252) is arranged on the mounting plate (251) and used for wiping a temperature measuring end head of the infrared thermometer (3).
3. A fire alarm device according to claim 2, wherein: still include valve assembly, valve assembly includes slice valve (41), and slice valve (41) rotate and set up in exhaust pipe (4) inboard, and be located smog alarm unit top, form gathering chamber (5) between slice valve (41) and the smog alarm unit for gather the smog of conflagration initial stage.
4. A fire alarm device according to claim 3, wherein: the sheet valve (41) is movably arranged on the inner side of the smoke exhaust pipe (4) through a first connecting shaft (42) and a second connecting shaft (43), the axes of the first connecting shaft (42) and the second connecting shaft (43) are in the same straight line and pass through the axis of the smoke exhaust pipe (4), a torsion spring (431) is sleeved on the second connecting shaft (43), two ends of the torsion spring (431) are respectively connected with the smoke exhaust pipe (4) and the second connecting shaft (43), and the sheet valve (41) is in a horizontal state when the torsion spring (431) is not stressed.
5. The fire alarm device of claim 4, wherein: the valve assembly further comprises a first rope (26) and a second rope (27), one ends of the first rope (26) and the second rope (27) are connected with each other, a connecting hole (271) is formed in one side, located at the center axis, of the sheet valve (41), one end, away from the first rope (26), of the second rope (27) is connected with the sheet valve (41) through the connecting hole (271), a rope penetrating hole (15) is formed in the middle of the shell (1), the second rope (27) penetrates through the rope penetrating hole (15), one end, away from the second rope (27), of the first rope (26) penetrates through the inside of the rotating shaft (21) and the inside of the sleeve (24) and then is connected with the sliding rod (25), and the sliding rod (25) is used for pulling the sheet valve (41) to rotate to open the aggregation cavity (5).
6. The fire alarm device of claim 5, wherein: the inside mounting groove (211) that sets up of pivot (21), the symmetry sets up guide pulley (212) about sleeve (24) axis about in mounting groove (211), and first rope (26) are around establishing on guide pulley (212) to adapt to the relative position of pivot (21) and sleeve (24), change the pulling force direction of first rope (26).
7. The fire alarm device of claim 6, wherein: the inside draw-in groove that still sets up of pivot (21), the length direction of draw-in groove is parallel to each other with the axis of pivot (21), the interior clamping block (263) that sets up of draw-in groove, clamping block (263) set up in the installation piece (261) outside, installation piece (261) slip setting is in pivot (21) and installation piece (261) are connected with one end that slide bar (25) was kept away from to first rope (26), installation piece (261) internal rotation sets up rotatory piece (262), rotatory piece (262) are connected with one end that piece formula valve (41) was kept away from to second rope (27).
8. The fire alarm device of claim 7, wherein: the power assembly comprises a motor (23), the motor (23) is arranged on a mounting frame (231), the mounting frame (231) is arranged on the outer side of the smoke exhaust pipe (4), the output end of the motor (23) is connected with a rotating shaft (21) through a synchronous belt (232), and the synchronous belt (232) penetrates through the pipe wall of the smoke exhaust pipe (4) and is used for driving the rotating shaft (21) to rotate so as to drive the fan to rotate.
9. The fire alarm device of claim 8, wherein: the inner wall of the smoke exhaust pipe (4) is provided with a plurality of plug-in blocks (16), the joint of the shell (1) and the inner wall of the smoke exhaust pipe (4) is provided with a plurality of plug-in columns (17) corresponding to the plug-in blocks (16), and the plug-in columns (17) are correspondingly plugged with the plug-in blocks (16).
10. A system of fire alarm devices comprising a fire alarm device as claimed in claim 9, further comprising:
the adjusting module is arranged in the shell (1) and is electrically connected with the smoke alarm and used for adjusting the sensitivity of the smoke alarm;
The processing module is electrically connected with the smoke alarm and the infrared thermometer (3) and is used for processing data monitored by the smoke alarm and the infrared thermometer (3);
The analysis module is used for analyzing and comparing measured data before and after wiping the temperature measuring end head of the infrared thermometer (3) by the wiping block (252);
and the transmission module is connected with the adjusting module, the processing module, the analysis module and the terminal equipment and is used for uploading the data processed by the processing module and the data analyzed by the analysis module to the terminal equipment for alarming and early warning.
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| CN117975649B (en) | 2024-06-21 |
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