Active-passive integrated photoelectric smoke-sensing fire detection alarm

Abstract

The invention relates to the technical field of fire detection, and discloses an active and passive integrated photoelectric smoke-sensing fire detection alarm, which comprises a main body, the bottom of the main body is fixedly connected with a support frame, the top of the main body is in bolted connection with a connecting disc, and the bottom of the connecting disc is fixedly connected with an optical sensor. According to the invention, even if only a small amount of smoke particles are attached to the flexible reflecting plate, relatively obvious light intensity change can be caused, so that the sensitivity of the alarm is improved, the intensity of light signals received by the optical sensor can be effectively improved through the swinging of the flexible reflecting plate, and the sensitivity of the alarm is improved. Therefore, the optical sensor can detect smog more quickly and more accurately, so that the missing report rate is effectively reduced, the fire alarm timeliness is improved, and meanwhile, the detection capability of the detector on weak smog signals can be improved.

Description

Technical Field

[0001] The invention relates to the technical field of fire detection, and in particular to an active and passive integrated photoelectric smoke fire detection alarm. Background Art

[0002] With the increase in fire and electricity consumption in modern hotels, restaurants, entertainment venues and homes, the frequency of various fires is increasing. In order to detect fires early and avoid major losses of life and property, people are now generally equipped with alarm devices. There are many types of alarms in the prior art. From the principle and function point of view, there are mainly ion, photoelectric and temperature sensing types. The alarm uses the highly sensitive detection elements installed inside to capture abnormal changes in temperature and gas content in the air and send out alarm signals;

[0003] Generally, when a detector detects smoke, the optical element inside the detector emits an infrared ray to illuminate the particles in the smoke and refracts the light under the reflection of the particles. Since the existing devices mainly rely on fixed optical paths and static reflection or scattering elements to detect smoke, in this case, the intensity of the light irradiating the sensor is relatively fixed, resulting in relatively limited detection capabilities for weaker smoke signals, which can easily lead to difficulty in quickly and promptly issuing early warnings when detecting fires, affecting the detection accuracy of the detector and the ability to detect weak smoke. Summary of the invention

[0004] The object of the present invention is to provide an active and passive integrated photoelectric smoke fire detection alarm to solve the problems raised in the above background technology.

[0005] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0006] The present invention is an active-passive integrated photoelectric smoke fire detection alarm, comprising a main body, a support frame fixedly connected to the bottom of the main body, a connection plate bolted to the top of the main body, an optical sensor fixedly connected to the bottom of the connection plate, an infrared transmitter fixedly connected to the side of the connection plate close to the optical sensor, an infrared receiver fixedly connected to the side of the connection plate close to the optical sensor, a hollow groove is provided on the inner wall of the bottom of the support frame, an air chamber fixedly connected to the inside of the bottom of the support frame, a limit ring fixedly connected to the inside of the air chamber, and further comprising;

[0007] The rotating mechanism includes a motor fixedly connected to the inside of the hollow groove, the output end of the motor penetrates the bottom inner wall of the air chamber and extends to the inside, the extended end of the motor is fixedly connected to the top plate, the outer surface of the extended end of the motor located inside the air chamber is rotatably connected to a fixed cylinder, the bottom of the fixed cylinder is fixedly connected to the bottom inner wall of the air chamber, the outer surface of the fixed cylinder is provided with a Z-shaped groove, and the inside of the Z-shaped groove is slidably connected to a plug rod;

[0008] The shaking mechanism includes a plurality of flexible reflective plates rotatably connected to the bottom of the limiting ring, a hollow frame is fixedly connected to the bottom of the flexible reflective plate, a connecting plate is rotatably connected to the side of the flexible reflective plate close to the air chamber, and a connecting ear is rotatably connected to the end of the connecting plate away from the flexible reflective plate, and the connecting ear is slidably connected in the annular groove on the annular disk.

[0009] Furthermore, one end of the insertion rod away from the fixed cylinder is fixedly connected to a rotating disk, the top of the rotating disk is fixedly connected to a plurality of telescopic rods, the plurality of telescopic rods are fixedly connected to the bottom of the top disk, the top of the rotating disk is fixedly connected to a plurality of obtuse-angled plates, one end of the obtuse-angled plate away from the rotating disk is fixedly connected to an L-plate, the tops of the plurality of L-plates are fixedly connected to an annular disk, the top of the annular disk is provided with an annular wavy groove, and the inner wall of the annular disk is provided with an annular groove.

[0010] Furthermore, a transmission mechanism is provided inside the air chamber, and the transmission mechanism includes an elastic plate fixedly connected to the side of the flexible reflective plate close to the annular disk, the side of the elastic plate away from the flexible reflective plate is rotatably connected to an elastic shaft, the middle part of the elastic shaft is rotatably connected to a raised plate, one end of the raised plate away from the elastic shaft is slidably connected to the inside of the annular wave groove, the left and right sides of the raised plate are slidably connected to a rotating plate, and one end of the rotating plate close to the elastic plate is rotatably connected to the side wall of the elastic plate.

[0011] Furthermore, an inflation mechanism is provided inside the air chamber, which includes a hollow frame 2 slidably connected to the outer surfaces of several L-plates, the bottom of the hollow frame 2 is slidably connected to the bottom inner wall of the air chamber, the top of the hollow frame 2 is rotatably connected to several curved jet pipes, and one end of the curved jet pipe away from the hollow frame 2 is rotatably connected to the inner wall of the annular disk.

[0012] Furthermore, an airbag ring is fixedly connected to the bottom inner wall of the hollow frame 2, and a plurality of connecting tubes are fixedly connected to the top of the airbag ring. The end of the connecting tube away from the airbag ring penetrates the outer wall of the hollow frame 2 and extends to the outside. The curved jet pipe is connected to the airbag ring through the connecting tube, and a plurality of connecting tubes are fixedly connected to the side of the airbag ring close to the motor.

[0013] Furthermore, an adsorption mechanism is provided on the top of the top plate, and the adsorption mechanism includes an elastic bag 1 fixedly connected to the top of the top plate, an end of the elastic bag 1 away from the top plate is fixedly connected to a connecting ring, the outer surface of the connecting ring is open, and the outer surface of the connecting ring is fixedly connected to an elastic bag 2, a plurality of conical grooves are provided on the top of the elastic bag 2, and a plurality of sliding rods are slidably connected to the opening of the outer surface of the connecting ring, and an end of the sliding rod away from the elastic bag 2 is slidably connected to the inside of the hollow frame, and the connecting ring is made of a flexible material.

[0014] Furthermore, an auxiliary mechanism is provided inside the elastic bag 2, and the auxiliary mechanism includes a hollow cylinder 1 fixedly connected to the inner wall of the top of the elastic bag 2, a plurality of rectangular grooves are provided on the outer surface of the hollow cylinder 1, the hollow cylinder 2 is slidably connected inside the hollow cylinder 1, a one-way plate is rotatably connected to the top of the hollow cylinder 2, a return spring is fixedly connected to the bottom of the hollow cylinder 1, and one end of the return spring away from the hollow cylinder 1 is fixedly connected to the top of the hollow cylinder 2.

[0015] Furthermore, a diaphragm is fixedly connected to the outer surface of the hollow cylinder 1, and the outer surface of the diaphragm is fixedly connected to the inside of the elastic bag 2;

[0016] Among them, the end of the connecting tube away from the airbag ring passes through the interior of the hollow cylinder 2, the hollow cylinder 2 is connected to the diaphragm, and a plurality of spring blocks are fixedly connected to the bottom of the diaphragm. The end of the spring block away from the diaphragm is fixedly connected to the top of the top plate.

[0017] The present invention has the following beneficial effects:

[0018] 1. In the present invention, after the device is installed, the motor is powered and driven to rotate the top plate. When the top plate rotates, the rotating plate is driven to rotate through the multiple telescopic rods at the bottom. When the rotating plate rotates, the multiple obtuse-angled plates are driven to rotate synchronously. At the same time, when the rotating plate rotates, the rotation of the rotating plate is caused to slide up and down along its trajectory in the Z-shaped groove on the fixed cylinder through the insertion rod on the inner wall. When the rotating plate slides up and down, the sliding of the rotating plate drives the L-plate to slide synchronously through the obtuse-angled plate. When the multiple L-plates slide, they drive the annular plate to slide up and down synchronously. When the annular plate slides up and down, the sliding of the annular plate pushes the bottom of the flexible reflective plate through the connecting ear and the connecting plate, so that the flexible reflective plate swings back and forth between the top of the flexible reflective plate and the bottom of the limiting ring inside the air chamber. When the flexible reflective plate swings, The swing of the flexible reflector can increase the reflection intensity of light irradiating to the particles in the smoke, thereby enhancing the intensity of light irradiating to the optical sensor. Subsequently, when a fire occurs and the smoke enters the interior of the air chamber, the particles in the smoke are sticky and will adhere to the flexible reflector. At this time, the adhered particles will affect the reflection intensity of the main body to the light. Even if only a small amount of smoke particles are attached to the flexible reflector, it can cause a relatively obvious change in light intensity, thereby affecting the improvement of the alarm sensitivity. The swing of the flexible reflector can effectively increase the intensity of the light signal received by the optical sensor, so that the optical sensor can detect the presence of smoke faster and more accurately, thereby effectively reducing the missed alarm rate and improving the timeliness of fire alarms. At the same time, it can also improve the detector's ability to detect weak smoke signals.

[0019] 2. In the present invention, when the rotation of the rotating disk drives the annular disk to rotate through the L-plate, the rotation of the annular disk will drive the raised plate to slide back and forth between the two rotating plates through the annular wave groove on the top thereof. When the raised plate slides back and forth, the sliding of the raised plate will pull the elastic shaft to expand outward and contract inward. When the elastic shaft expands and contracts, the expansion of the elastic shaft will pull the top and bottom of the elastic plate to make the two ends of the elastic plate shake on the side wall of the flexible reflective plate. When the elastic plate shakes, the shaking of the two ends of the elastic plate will generate vibration on the side wall of the flexible reflective plate. This vibration can make the attached Dust particles on the surface of the flexible reflective plate fall off under the action of vibration. Due to their small mass, dust particles are more easily separated from the surface of the flexible reflective plate under the vibration generated by the vibration. Moreover, since the vibration generated by the elastic plate is periodic, the adsorption state of dust on the surface of the flexible reflective plate can be continuously disturbed with the vibration of the elastic plate and the reciprocating swing of the flexible reflective plate, making it more difficult for dust to adhere stably to the surface of the flexible reflective plate, thereby effectively reducing dust accumulation and reducing the impact of dust adhesion on the flexible reflective plate on light reflection of the flexible reflective plate, thereby improving the sensitivity and accuracy of this device for smoke detection.

[0020] 3. In the present invention, when the annular disk slides up and down, the sliding of the annular disk will squeeze the curved jet pipe and make the curved jet pipe fit to the inner wall of the air chamber. At the same time, the annular disk will also fit to the inner wall of the air chamber as the annular disk vibrates. At the same time, when the L plate slides downward, the sliding of the L plate will squeeze the top of the airbag ring through the squeezing ring. After the airbag ring is squeezed, the gas inside the airbag ring will enter the curved jet pipe through the connecting pipe and be discharged outward through the curved jet pipe and sprayed on the inner wall of the air chamber, thereby reducing the surface of the air chamber. Dust clogging occurs. At the same time, when the flexible reflector is relatively swung, the rotation of the flexible reflector will push the connecting ring to relatively shrink through the sliding rod. When the sliding rod pushes the connecting ring to shrink it, the shrinkage of the connecting ring will push the elastic bag 2 to move upward. When the elastic bag 2 moves upward, the elastic bag 2 will drive the hollow cylinder 1 to move upward synchronously. Before the elastic bag 2 and the hollow cylinder 1 move upward, the diaphragm will be pushed by the elasticity of several spring blocks at the bottom of the diaphragm to contact the inner wall of the conical cylinder and the elastic bag 2, and then the elastic bag 2 will move upward. When bag 2 and hollow cylinder 1 move upward, the movement of hollow cylinder 1 will form a certain negative pressure between hollow cylinder 1 and hollow cylinder 2. At this time, the one-way plate will close under the negative pressure in hollow cylinder 1. Then, when elastic bag 2 continues to move upward, the conical hole on elastic bag 2 will continue to move up and down. The negative pressure inside hollow cylinder 1 will extract the gas containing dust particles that are shaken off on the flexible reflective plate outside elastic bag 2 through the conical cylinder. At this time, the dust-containing gas will enter elastic bag 2 through the conical hole and pass through the rectangular groove on hollow cylinder 1. Entering into the hollow cylinder, at the same time, when the top plate drives the connecting ring to rotate, the rotation of the connecting ring will also drive the diaphragm to shake synchronously through the shaking of multiple spring blocks inside. When the diaphragm shakes, it will also extract a certain amount of external gas through the conical cylinder. By extracting the gas, the dust on the flexible reflective plate can be reduced. When the dust is shaken off, it will fall between the infrared emitter and the infrared emitter, causing the dust particles to affect the refraction of the infrared emitter light and weaken the light reception on the optical sensor, thereby causing misjudgment.

[0021] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 It is a schematic diagram of the overall partial cross-sectional structure of the present invention;

[0025] Figure 3 It is a schematic diagram of the main body of the present invention;

[0026] Figure 4 It is a schematic diagram of the internal parts of the main body of the present invention;

[0027] Figure 5 It is a schematic diagram of the rotating mechanism of the present invention;

[0028] Figure 6 It is a schematic diagram of the shaking mechanism of the present invention;

[0029] Figure 7 It is a schematic diagram of the adsorption mechanism of the present invention;

[0030] Figure 8 It is a partial bottom view schematic diagram of the rotating mechanism of the present invention;

[0031] Fig. 9 It is a schematic diagram of the auxiliary mechanism of the present invention.

[0032] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0033] In the figure: 1. Main body; 101. Support frame; 102. Optical sensor; 103. Infrared transmitter; 104. Infrared receiver; 105. Air chamber; 2. Rotating mechanism; 201. Motor; 202. Top plate; 203. Rotating plate; 204. Obtuse plate; 205. L plate; 206. Ring plate; 207. Fixed cylinder; 3. Shaking mechanism; 301. Flexible reflective plate; 302. Hollow frame; 303. Connecting plate; 304. Connecting ear; 4. Transmitter Driving mechanism; 401, elastic plate; 402, elastic shaft; 403, raised plate; 404, rotating plate; 5, inflation mechanism; 501, hollow frame 2; 502, curved jet pipe; 503, connecting pipe; 504, airbag ring; 6, adsorption mechanism; 601, elastic bag 1; 602, connecting ring; 603, elastic bag 2; 604, sliding rod; 7, auxiliary mechanism; 701, hollow cylinder 1; 702, hollow cylinder 2; 703, diaphragm; 704, one-way plate. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] See also Figure 1-Figure 9As shown, the present invention is an active and passive integrated photoelectric smoke fire detection alarm, comprising a main body 1, a support frame 101 is fixedly connected to the bottom of the main body 1, a connecting plate is bolted to the top of the main body 1, an optical sensor 102 is fixedly connected to the bottom of the connecting plate, an infrared transmitter 103 is fixedly connected to the side of the connecting plate close to the optical sensor 102, an infrared receiver 104 is fixedly connected to the side of the connecting plate close to the optical sensor 102, a hollow groove is provided on the inner wall of the bottom of the support frame 101, an air chamber 105 is fixedly connected to the inside of the bottom of the support frame 101, a limit ring is fixedly connected to the inside of the air chamber 105, and further comprising;

[0036] The rotating mechanism 2 includes a motor 201 fixedly connected to the inside of the hollow groove, the output end of the motor 201 penetrates the bottom inner wall of the air chamber 105 and extends to the inside, the extended end of the motor 201 is fixedly connected to the top plate 202, and the outer surface of the extended end of the motor 201 located inside the air chamber 105 is rotatably connected to a fixed cylinder 207, the bottom of the fixed cylinder 207 is fixedly connected to the bottom inner wall of the air chamber 105, and the outer surface of the fixed cylinder 207 is provided with a Z-shaped groove, and the inside of the Z-shaped groove is slidably connected to a plug rod;

[0037] The shaking mechanism 3 includes a plurality of flexible reflective plates 301 rotatably connected to the bottom of the limit ring, a hollow frame 302 is fixedly connected to the bottom of the flexible reflective plate 301, a connecting plate 303 is rotatably connected to the side of the flexible reflective plate 301 close to the air chamber 105, and a connecting ear 304 is rotatably connected to the end of the connecting plate 303 away from the flexible reflective plate 301, and the connecting ear 304 is slidably connected in the annular groove on the annular disk 206. After the device is installed, the motor 201 is powered and drives the top disk 202 to rotate. When the top disk 202 rotates, it drives the rotating disk 203 to rotate through the plurality of telescopic rods at the bottom. When the rotating disk 203 rotates, it drives the plurality of obtuse-angled plates 204 to rotate synchronously. At the same time, when the rotating disk 203 rotates, the rotation of the rotating disk 203 will slide up and down along its trajectory in the Z-groove on the fixed cylinder 207 through the insertion rod on the inner wall.

[0038] One end of the insertion rod away from the fixed cylinder 207 is fixedly connected to the rotating disk 203, and a plurality of telescopic rods are fixedly connected to the top of the rotating disk 203, and the plurality of telescopic rods are fixedly connected to the bottom of the top disk 202. The top of the rotating disk 203 is fixedly connected to a plurality of obtuse-angled plates 204, and one end of the obtuse-angled plate 204 away from the rotating disk 203 is fixedly connected to an L-plate 205, and the tops of the plurality of L-plates 205 are fixedly connected to an annular disk 206, and an annular wave groove is provided on the top of the annular disk 206, and an annular groove is provided on the inner wall of the annular disk 206. When the rotating disk 203 slides up and down, the sliding of the rotating disk 203 will drive the L-plate 205 to slide synchronously through the obtuse-angled plate 204, and when multiple L-plates 205 slide, they will drive the annular disk 206 to slide up and down synchronously.

[0039] The air chamber 105 is provided with a transmission mechanism 4 inside. The transmission mechanism 4 includes an elastic plate 401 fixedly connected to the side of the flexible reflective plate 301 close to the annular disk 206. The side of the elastic plate 401 away from the flexible reflective plate 301 is rotatably connected to an elastic shaft 402. The middle of the elastic shaft 402 is rotatably connected to a raised plate 403. One end of the raised plate 403 away from the elastic shaft 402 is slidably connected to the inside of the annular wave groove. The left and right sides of the raised plate 403 are slidably connected to rotating plates 404. One end of the rotating plate 404 close to the elastic plate 401 is rotatably connected to the side wall of the elastic plate 401. When the rotating disk 203 rotates and drives the annular disk 206 to rotate through the L plate 205, the rotation of the annular disk 206 will drive the raised plate 403 to slide back and forth between the two rotating plates 404 through the annular wave groove on the top thereof. When the raised plate 403 slides back and forth, the sliding of the raised plate 403 will pull the elastic shaft 402 to cause it to expand outward and contract inward.

[0040] An inflation mechanism 5 is provided inside the air chamber 105, and the inflation mechanism 5 includes a hollow frame 501 slidably connected to the outer surfaces of several L-plates 205, the bottom of the hollow frame 501 is slidably connected to the bottom inner wall of the air chamber 105, and the top of the hollow frame 501 is rotatably connected to several curved air jets 502, and one end of the curved air jets 502 away from the hollow frame 501 is rotatably connected to the inner wall of the annular disk 206. When the annular disk 206 slides back and forth up and down, the sliding of the annular disk 206 will squeeze the curved air jets 502 and make the curved air jets 502 fit to the inner wall of the air chamber 105, and at the same time, the curved air jets 502 will fit to the inner wall of the air chamber 105 as the annular disk 206 vibrates. At the same time, when the L-plate 205 slides downward, the sliding of the L-plate 205 will squeeze the top of the airbag ring 504 through the extrusion ring.

[0041] An airbag ring 504 is fixedly connected to the inner wall of the bottom of the hollow frame 501, and a plurality of connecting tubes are fixedly connected to the top of the airbag ring 504. The end of the connecting tube away from the airbag ring 504 penetrates the outer wall of the hollow frame 501 and extends to the outside. The curved jet pipe 502 is connected to the airbag ring 504 through the connecting pipe. A plurality of connecting pipes 503 are fixedly connected to the side of the airbag ring 504 close to the motor 201. After the airbag ring 504 is squeezed, the gas inside it will enter the curved jet pipe 502 through the connecting pipe and be discharged outward through the curved jet pipe 502 and sprayed on the inner wall of the air chamber 105, thereby reducing the clogging of the surface of the air chamber 105 by dust.

[0042] A suction mechanism 6 is provided on the top of the top plate 202, and the suction mechanism 6 includes an elastic bag 1 601 fixedly connected to the top of the top plate 202, and a connecting ring 602 is fixedly connected to the end of the elastic bag 1 601 away from the top plate 202, and the outer surface of the connecting ring 602 is open, and an elastic bag 2 603 is fixedly connected to the outer surface of the connecting ring 602, and a plurality of conical grooves are provided on the top of the elastic bag 2 603, and a plurality of sliding rods 604 are slidably connected to the opening of the outer surface of the connecting ring 602, and the end of the sliding rod 604 away from the elastic bag 2 603 is slidably connected to the inside of the hollow frame 302, and the connecting ring 602 is made of flexible material, and when the flexible reflector 301 is relatively swung, the rotation of the flexible reflector 301 will push the connecting ring 602 to relatively shrink through the sliding rod 604, and when the sliding rod 604 pushes the connecting ring 602 to shrink, the shrinkage of the connecting ring 602 will push the elastic bag 2 603 to move upward.

[0043] The interior of the elastic bag 2 603 is provided with an auxiliary mechanism 7, which includes a hollow cylinder 1 701 fixedly connected to the inner wall of the top of the elastic bag 2 603, a plurality of rectangular grooves are provided on the outer surface of the hollow cylinder 1 701, a hollow cylinder 2 702 is slidably connected to the interior of the hollow cylinder 1 701, a one-way plate 704 is rotatably connected to the top of the hollow cylinder 2 702, a reset spring is fixedly connected to the bottom of the hollow cylinder 1 701, and one end of the reset spring away from the hollow cylinder 1 701 is fixedly connected to the top of the hollow cylinder 2 702, and then the elastic bag 2 603 is opened. When bag 2 603 and hollow cylinder 1 701 move upward, the movement of hollow cylinder 1 701 will form a certain negative pressure between hollow cylinder 1 701 and hollow cylinder 2 702. At this time, the one-way plate 704 is closed under the negative pressure in hollow cylinder 1 701. After that, when elastic bag 2 603 continues to move upward, the conical holes on the elastic bag 2 603 will continue to move up and down. The negative pressure inside hollow cylinder 1 701 will extract the gas containing dust particles that are shaken off from the flexible reflective plate 301 on the outside of the elastic bag 2 603 through the conical cylinder.

[0044] The outer surface of the hollow cylinder 1 701 is fixedly connected with a diaphragm 703, and the outer surface of the diaphragm 703 is fixedly connected with the inside of the elastic bag 2 603;

[0045] Among them, one end of the connecting tube 503 away from the airbag ring 504 passes through the interior of the hollow cylinder 702, the hollow cylinder 702 is connected to the diaphragm 703, and a plurality of spring blocks are fixedly connected to the bottom of the diaphragm 703. One end of the spring block away from the diaphragm 703 is fixedly connected to the top of the top plate 202. The rotation of the connecting ring 602 will also drive the diaphragm 703 to shake synchronously through the shaking of the multiple spring blocks inside. When the diaphragm 703 shakes, it will also extract a certain amount of external gas through the conical cylinder.

[0046] When in use, first install this device in a suitable place. When a fire occurs, the smoke generated by the fire will enter the interior of the air chamber 105 through the air chamber 105, and then the smoke from the fire will enter between the infrared transmitter 103 and the infrared receiver 104. At this time, the infrared light emitted by the infrared transmitter 103 will be reflected by the particles in the smoke and reflected into the optical sensor 102, thereby detecting the fire and issuing an alarm.

[0047] After the device is installed, the motor 201 is powered and drives the top plate 202 to rotate. When the top plate 202 rotates, it drives the rotating plate 203 to rotate through the multiple telescopic rods at the bottom. When the rotating plate 203 rotates, it drives the multiple obtuse-angle plates 204 to rotate synchronously. At the same time, when the rotating plate 203 rotates, the rotation of the rotating plate 203 slides up and down along its trajectory in the Z-shaped groove on the fixed cylinder 207 through the insertion rod on the inner wall. When the rotating disk 203 slides up and down, the sliding of the rotating disk 203 will drive the L plate 205 to slide synchronously through the obtuse plate 204. When the multiple L plates 205 slide, they will drive the annular disk 206 to slide up and down synchronously. When the annular disk 206 slides up and down, the sliding of the annular disk 206 will push the bottom of the flexible reflective plate 301 through the connecting ear 304 and the connecting plate 303, so that the flexible reflective plate 301 moves back and forth with the top of the flexible reflective plate 301 and the bottom of the limiting ring inside the air chamber 105. The flexible reflector 301 repeatedly swings, and when the flexible reflector 301 is swinging, the swing of the flexible reflector 301 can increase the reflection intensity of the light irradiating to the particles in the smoke, thereby enhancing the illumination intensity of the light on the optical sensor 102. Subsequently, when a fire occurs and the smoke enters the interior of the air chamber 105, the particles in the smoke are sticky and will adhere to the flexible reflector 301. At this time, the adhered particles will affect the reflection intensity of the light by the main body 1 of 301. Even if only a small amount of smoke particles are attached to the flexible reflector 301, it can cause a relatively obvious change in the light intensity, thereby affecting the situation of improving the sensitivity of the alarm. The swing of the flexible reflector 301 can effectively improve the intensity of the light signal received by the optical sensor 102, so that the optical sensor 102 can detect the presence of smoke faster and more accurately, thereby effectively reducing the missed alarm rate and improving the timeliness of the fire alarm. At the same time, it can also improve the detector's ability to detect weak smoke signals.

[0048] When the rotation of the rotating disk 203 drives the annular disk 206 to rotate through the L plate 205, the rotation of the annular disk 206 will drive the raised plate 403 to slide back and forth between the two rotating plates 404 through the annular wave groove on the top thereof. When the raised plate 403 slides back and forth, the sliding of the raised plate 403 will pull the elastic shaft 402 to cause it to expand outward and contract inward. When the elastic shaft 402 expands and contracts, the expansion of the elastic shaft 402 will pull the top and bottom of the elastic plate 401 so that the two ends of the elastic plate 401 shake on the side wall of the flexible reflective plate 301. When the elastic plate 401 shakes, the shaking of the two ends of the elastic plate 401 will generate vibration on the side wall of the flexible reflective plate 301, which This vibration can make the dust particles attached to the surface of the flexible reflective plate 301 fall off under the action of the vibration. Due to their small mass, the dust particles are more likely to fall off the surface of the flexible reflective plate 301 under the vibration generated by the vibration. Moreover, since the vibration generated by the elastic plate 401 is periodic, the adsorption state of the dust on the surface of the flexible reflective plate 301 can be continuously disturbed with the vibration of the elastic plate 401 and the reciprocating swing of the flexible reflective plate 301, making it more difficult for the dust to stably adhere to the surface of the flexible reflective plate 301, thereby effectively reducing the accumulation of dust and reducing the influence of the light reflection of the flexible reflective plate 301 on the adhesion of dust on the flexible reflective plate 301, thereby improving the sensitivity and accuracy of the device for smoke detection.

[0049] When the annular disk 206 slides up and down, the sliding of the annular disk 206 will squeeze the curved jet pipe 502 and make the curved jet pipe 502 fit the inner wall of the air chamber 105. At the same time, the annular disk 206 will also fit the inner wall of the air chamber 105 as the annular disk 206 vibrates. At the same time, when the L plate 205 slides downward, the sliding of the L plate 205 will squeeze the top of the air bag ring 504 through the squeezing ring. After the air bag ring 504 is squeezed, the gas inside the air bag ring 504 will enter the curved jet pipe 502 through the connecting pipe and be discharged outward through the curved jet pipe 502 and sprayed on the inner wall of the air chamber 105, thereby reducing the surface of the air chamber 105. In the case of dust clogging, at the same time, when the flexible reflector 301 is relatively swung, the rotation of the flexible reflector 301 will push the connecting ring 602 to relatively shrink through the sliding rod 604. When the sliding rod 604 pushes the connecting ring 602 to shrink, the shrinkage of the connecting ring 602 will push the elastic bag 2 603 to move upward. When the elastic bag 2 603 moves upward, the elastic bag 2 603 will drive the hollow cylinder 1 701 to move upward synchronously. Before the elastic bag 2 603 and the hollow cylinder 1 701 move upward, the diaphragm 703 will be pushed by the elasticity of several spring blocks at the bottom of the diaphragm 703 to align with the inner wall of the conical cylinder and the elastic bag 2 603. When the elastic bag 2 603 and the hollow cylinder 1 701 move upward, the movement of the hollow cylinder 1 701 will form a certain negative pressure between the hollow cylinder 1 701 and the hollow cylinder 2 702. At this time, the one-way plate 704 is closed under the negative pressure in the hollow cylinder 1 701. After that, when the elastic bag 2 603 continues to move upward, the conical hole on the elastic bag 2 603 will continue to move up and down. The negative pressure inside the hollow cylinder 1 701 will extract the gas containing dust particles that are shaken off from the flexible reflective plate 301 on the outside of the elastic bag 2 603 through the conical tube. At this time, the dust-containing gas will enter the elastic bag 2 603 through the conical hole and pass through the hollow cylinder The rectangular groove on the one 701 enters into the hollow tube one 701. At the same time, when the top plate 202 drives the connecting ring 602 to rotate, the rotation of the connecting ring 602 will also drive the diaphragm 703 to shake synchronously through the shaking of multiple internal spring blocks. When the diaphragm 703 shakes, it will also extract a certain amount of external gas through the conical tube. By extracting the gas, the dust on the flexible reflector 301 can be reduced. When the dust is shaken off, it will fall between the infrared emitter 103 and the infrared emitter 103, causing the dust particles to affect the refraction of the infrared emitter 103 light and the weakening of the light reception on the optical sensor 102, thereby causing misjudgment.

[0050] When the connecting ring 602 expands outward, the expansion of the connecting ring 602 will pull the hollow cylinder 1 701 to slide downward on the surface of the hollow cylinder 2 702 through the flexible bag 2 603. When the hollow cylinder 1 701 and the flexible bag 2 603 slide downward, since the conical hole inside the flexible bag 2 603 is smaller, when the flexible bag 2 603 and the hollow cylinder 1 701 move downward, the hollow cylinder 1 701 will squeeze the gas inside. After being squeezed, the gas will push the one-way plate 704 to open the one-way plate 704. Then, when the hollow cylinder 1 701 continues to move downward, the downward movement of the hollow cylinder 1 701 will allow the gas to enter the connecting tube 503 through the hollow cylinder 2 702 and enter the airbag ring 504 through the connecting tube 503, so as to increase the gas content of the gas inside the airbag ring 504.

[0051] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. An active-passive integrated photoelectric smoke fire detection alarm, comprising a main body (1), the bottom of the main body (1) is fixedly connected to a support frame (101), the top of the main body (1) is bolted to a connecting plate, the bottom of the connecting plate is fixedly connected to an optical sensor (102), the side of the connecting plate close to the optical sensor (102) is fixedly connected to an infrared transmitter (103), the side of the connecting plate close to the optical sensor (102) is fixedly connected to an infrared receiver (104), the bottom inner wall of the support frame (101) is provided with a hollow groove, the bottom of the support frame (101) is fixedly connected to an air chamber (105), the inside of the air chamber (105) is fixedly connected to a limit ring, characterized in that: Also includes; A rotating mechanism (2), the rotating mechanism (2) comprising a motor (201) fixedly connected to the inside of the hollow groove, the output end of the motor (201) passing through the bottom inner wall of the air chamber (105) and extending to the inside, the extension end of the motor (201) fixedly connected to a top plate (202), the outer surface of the extension end of the motor (201) located inside the air chamber (105) is rotatably connected to a fixed cylinder (207), the bottom of the fixed cylinder (207) is fixedly connected to the bottom inner wall of the air chamber (105), the outer surface of the fixed cylinder (207) is provided with a Z-shaped groove, and the inside of the Z-shaped groove is slidably connected to an insertion rod; A shaking mechanism (3), the shaking mechanism (3) comprising a plurality of flexible reflective plates (301) rotatably connected to the bottom of a limiting ring, the bottom of the flexible reflective plates (301) being fixedly connected to a hollow frame (302), a side of the flexible reflective plates (301) close to the air chamber (105) being rotatably connected to a connecting plate (303), an end of the connecting plate (303) away from the flexible reflective plates (301) being rotatably connected to a connecting ear (304), and the connecting ear (304) being slidably connected to an annular groove on the annular disk (206).

2. The active and passive integrated photoelectric smoke fire detection alarm according to claim 1, characterized in that: One end of the insertion rod away from the fixed cylinder (207) is fixedly connected to a rotating disk (203), the top of the rotating disk (203) is fixedly connected to a plurality of telescopic rods, the plurality of telescopic rods are fixedly connected to the bottom of the top disk (202), the top of the rotating disk (203) is fixedly connected to a plurality of obtuse-angled plates (204), one end of the obtuse-angled plates (204) away from the rotating disk (203) is fixedly connected to an L-plate (205), the tops of the plurality of L-plates (205) are fixedly connected to an annular disk (206), the top of the annular disk (206) is provided with an annular wave groove, and the inner wall of the annular disk (206) is provided with an annular groove.

3. The active and passive integrated photoelectric smoke fire detection alarm according to claim 2, characterized in that: A transmission mechanism (4) is arranged inside the air chamber (105), and the transmission mechanism (4) comprises an elastic plate (401) fixedly connected to a side of the flexible reflective plate (301) close to the annular disk (206); a side of the elastic plate (401) away from the flexible reflective plate (301) is rotatably connected to an elastic shaft (402); a middle part of the elastic shaft (402) is rotatably connected to a raised plate (403); an end of the raised plate (403) away from the elastic shaft (402) is slidably connected to the inside of the annular wave groove; a rotating plate (404) is slidably connected to the left and right sides of the raised plate (403); and an end of the rotating plate (404) close to the elastic plate (401) is rotatably connected to the side wall of the elastic plate (401).

4. The active and passive integrated photoelectric smoke fire detection alarm according to claim 3, characterized in that: An inflation mechanism (5) is arranged inside the air chamber (105), and the inflation mechanism (5) comprises a hollow frame 2 (501) slidably connected to the outer surfaces of a plurality of the L-plates (205), the bottom of the hollow frame 2 (501) is slidably connected to the bottom inner wall of the air chamber (105), and the top of the hollow frame 2 (501) is rotatably connected to a plurality of curved air injection pipes (502), and one end of the curved air injection pipe (502) away from the hollow frame 2 (501) is rotatably connected to the inner wall of the annular disk (206).

5. The active and passive integrated photoelectric smoke fire detection alarm according to claim 4, characterized in that: The bottom inner wall of the hollow frame 2 (501) is fixedly connected to an airbag ring (504), and the top of the airbag ring (504) is fixedly connected to a plurality of connecting tubes. The end of the connecting tube away from the airbag ring (504) penetrates the outer wall of the hollow frame 2 (501) and extends to the outside. The curved jet pipe (502) is connected to the airbag ring (504) through the connecting tube. The side of the airbag ring (504) close to the motor (201) is fixedly connected to a plurality of connecting tubes (503).

6. The active and passive integrated photoelectric smoke fire detection alarm according to claim 5, characterized in that: The top of the top plate (202) is provided with an adsorption mechanism (6), and the adsorption mechanism (6) comprises an elastic bag 1 (601) fixedly connected to the top of the top plate (202), and one end of the elastic bag 1 (601) away from the top plate (202) is fixedly connected to a connecting ring (602), and the outer surface of the connecting ring (602) is open, and the outer surface of the connecting ring (602) is fixedly connected to an elastic bag 2 (603), and the top of the elastic bag 2 (603) is provided with a plurality of conical grooves, and the opening of the outer surface of the connecting ring (602) is slidably connected to a plurality of sliding rods (604), and one end of the sliding rod (604) away from the elastic bag 2 (603) is slidably connected to the inside of the hollow frame (302), and the connecting ring (602) is made of a flexible material.

7. The active and passive integrated photoelectric smoke fire detection alarm according to claim 6, characterized in that: An auxiliary mechanism (7) is arranged inside the elastic bag 2 (603), and the auxiliary mechanism (7) comprises a hollow cylinder 1 (701) fixedly connected to the inner wall of the top of the elastic bag 2 (603), and a plurality of rectangular grooves are arranged on the outer surface of the hollow cylinder 1 (701), and the hollow cylinder 2 (702) is slidably connected inside the hollow cylinder 1 (701), and the top of the hollow cylinder 2 (702) is rotatably connected to a one-way plate (704), and the bottom of the hollow cylinder 1 (701) is fixedly connected to a return spring, and the end of the return spring away from the hollow cylinder 1 (701) is fixedly connected to the top of the hollow cylinder 2 (702).

8. The active and passive integrated photoelectric smoke fire detection alarm according to claim 7, characterized in that: The outer surface of the hollow cylinder 1 (701) is fixedly connected with a diaphragm (703), and the outer surface of the diaphragm (703) is fixedly connected with the inside of the elastic bag 2 (603); Among them, one end of the connecting tube (503) away from the airbag ring (504) passes through the interior of the hollow cylinder (702), and the hollow cylinder (702) is connected to the diaphragm (703). A plurality of spring blocks are fixedly connected to the bottom of the diaphragm (703), and one end of the spring block away from the diaphragm (703) is fixedly connected to the top of the top plate (202).

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