Intelligent self-adaptive adjustment air-breathing smoke detector and alarm system thereof

Abstract

The invention provides an intelligent self-adaptive adjustment air suction type smoke detector and an alarm system thereof, which are applied to the technical field of smoke detection and alarm, and can distribute a plurality of air suction pipes in different areas for air suction operation through the arrangement of the plurality of air suction pipes. A plurality of uniformly distributed air suction holes are formed in each air suction pipe, and the inner pipe and the valve plate are driven to circularly move in the air suction pipes by virtue of airflow suction control, so that the device can be controlled to perform accurate airflow suction control in the same area, and the range of the device for detecting smoke by sucking airflow can be greatly expanded under mutual cooperation; and the accuracy of judging the abnormal position when smoke abnormity is detected can be effectively improved, the device is suitable for being used in a large-range space, and the flexibility and the detection accuracy of the device in actual use are improved to a certain extent.

Description

Technical Field

[0001] This application relates to the technical field of smoke detection and alarm, and particularly to an aspirating smoke detector with intelligent adaptive adjustment and its alarm system. Background Art

[0002] In the modern fire safety field, aspirating smoke detectors play a crucial role. They are widely used in various places, shoulder the important task of early fire warning, and are an important fire-fighting equipment.

[0003] However, the suction range of common aspirating smoke detectors in the prior art is relatively small, making it difficult to comprehensively and timely capture smoke signals generated in remote or concealed areas. In some open spaces, the small suction range makes it impossible for a single detector to effectively monitor the entire space. If comprehensive detection is required, multiple smoke detectors need to be used in cooperation, which leads to a significant increase in usage costs. Moreover, the existing aspirating smoke detectors are not accurate enough in detecting and positioning the suction position. Since usually only one suction port is set in the same area, the range corresponding to a single suction port is usually large, resulting in its inability to accurately locate the specific source position of the smoke, which brings great difficulties to firefighters in quickly locating the fire source and taking targeted fire-fighting measures, and is likely to have an adverse impact on the emergency handling of the disaster situation.

[0004] Therefore, an aspirating smoke detector with intelligent adaptive adjustment and its alarm system are proposed to solve some problems existing in the above prior art. Summary of the Invention

[0005] The purpose of this application is to improve the coverage range and detection accuracy of the smoke detector when used in a large-scale space. Compared with the prior art, an aspirating smoke detector with intelligent adaptive adjustment and its alarm system are provided, including a housing. A first air pump and a main motor are fixed inside the housing. A smoke detection chamber is fixed inside the housing, and the smoke detection chamber is connected to the air outlet of the first air pump. A circuit main board is installed inside the housing, and an alarm unit and a wireless data transmission module are integrated on the circuit main board. A first pipe joint connected to the air inlet of the first air pump is fixed on the housing, and an air suction pipe is communicated with the outside of the first pipe joint. A plurality of uniformly distributed air suction holes are formed on the outer end wall of the air suction pipe, and symmetrically arranged cover plates are rotatably installed in the air suction holes. A torsion spring is installed at the rotational connection of the cover plate and the air suction hole. A first magnet is fixed on the cover plate. An inner pipe is slidably installed inside the air suction pipe, and a valve plate adapted to the internal size of the air suction pipe is fixed at the end of the inner pipe far from the first pipe joint. Through holes are formed on the outer end wall of the inner pipe, and a second magnet magnetically repulsive to the first magnet is fixed inside the inner pipe. An auxiliary mechanism connected to the air suction pipe is installed inside the housing.

[0006] Further, the cover plate is installed on one side of the air suction hole away from the center position of the air suction pipe. A limiting ring is fixed on one side of the air suction hole close to the center position of the air suction pipe, and the inner diameter of the limiting ring is smaller than the inner diameter of the air suction hole.

[0007] Further, a support ring adapted to the internal dimensions of the air suction pipe is fixed at one end of the inner pipe close to the first pipe joint.

[0008] Further, the auxiliary mechanism includes an outer connecting pipe fixedly communicated with the air suction pipe, and the outer connecting pipe is located at one end of the air suction pipe away from the first pipe joint. A solenoid valve is fixed inside the outer connecting pipe.

[0009] Further, the auxiliary mechanism further includes a second air pump fixedly installed in the housing and a second pipe joint communicated with the air inlet of the second air pump. The size of the fan blade in the second air pump is set to be twice the size of the fan blade in the first air pump, and the second pipe joint is fixedly communicated with one end of the air suction pipe away from the first pipe joint.

[0010] Further, the first air pump and the second air pump are respectively arranged on the outer sides of both ends of the main motor. Both ends of the rotor of the main motor penetrate to the outside of its body. One end of the rotor of the main motor is directly connected to the fan blade in the first air pump, and a coupler is connected between the other end of the rotor of the main motor and the fan blade in the second air pump.

[0011] Further, the coupler includes a first disc coaxially fixed with the rotor of the main motor and a second disc coaxially fixed with the fan blade of the second air pump. The first disc and the second disc are mutually attached with a 1-mm gap left. A number of electromagnets distributed in a ring are fixed inside the first disc, and the magnetic pole directions of adjacent two electromagnets are opposite. A number of third magnets distributed in a ring are fixed inside the second disc, and the magnetic pole directions of adjacent two third magnets are opposite.

[0012] Further, a plurality of first pipe joints are provided in total. Each first pipe joint is externally connected to an air suction pipe. Similarly, a plurality of second pipe joints are provided. A first switching mechanism is installed between the air inlet of the first air pump and the plurality of first pipe joints, and a second switching mechanism is installed between the air inlet of the second air pump and the plurality of second pipe joints.

[0013] Further, the first switching mechanism includes a first circular box fixedly communicated with the air inlet of the first air pump, and a plurality of first adapter pipes are arranged around the outer end wall of the first circular box. The plurality of first adapter pipes are fixedly communicated with a plurality of first pipe joints respectively. A first rotating cylinder is rotatably installed in the first circular box, and a first docking hole corresponding to the plurality of first adapter pipes is arranged on the end wall of the first rotating cylinder. A first micro motor for driving the first rotating cylinder to rotate is fixed on the first circular box. The second switching mechanism includes a second circular box fixedly communicated with the air inlet of the second air pump, and a plurality of second adapter pipes are arranged around the outer end wall of the second circular box. The plurality of second adapter pipes are fixedly communicated with a plurality of second pipe joints respectively. A second rotating cylinder is rotatably installed in the second circular box, and a second docking hole corresponding to the plurality of second adapter pipes is arranged on the end wall of the second rotating cylinder. A second micro motor for driving the second rotating cylinder to rotate is fixed on the second circular box.

[0014] Further, for the intelligent adaptive regulation aspirating smoke detection and alarm system, the alarm system is applicable to the intelligent adaptive regulation aspirating smoke detector. A plurality of suction pipes are arranged in different areas. After the first air pump and the second air pump are started, the inner pipe drives the valve plate to move orderly in the suction pipe under the control of the air flow. By virtue of the magnetic repulsion between the second magnet and the first magnet, the cover plates in the suction holes at different positions are driven to open, and the air flow at the corresponding positions of different suction holes on the same suction pipe is aspirated. By means of the rotation of the first rotating cylinder in the first circular box, the communication state between the first docking hole and different first adapter pipes is switched, so as to realize the control of the air flow aspiration of a plurality of different suction pipes. Each suction pipe has a unique number for each suction hole. The air flow inhaled through different suction holes is finally detected for smoke in the smoke detection chamber. If the smoke content exceeds the standard, an alarm reminder is sent through the background. A warning light is installed at each suction hole. When the inhaled air flow has an abnormality and triggers an alarm, the warning light on the corresponding suction pipe flashes at a low frequency, while the warning light at the corresponding suction hole flashes at a high frequency.

[0015] Compared with the prior art, the advantages of the present application are as follows:

[0016] (1) By providing a plurality of suction pipes, the present application can distribute the plurality of suction pipes in different areas for air flow inhalation operations. By opening a plurality of uniformly distributed suction holes on each suction pipe and controlling the air flow aspiration, the inner pipe and the valve plate are driven to move cyclically in the suction pipe, so that the device can control the precise air flow inhalation in the same area. With mutual cooperation, the range of the device for inhaling air flow to detect smoke can be greatly improved, and the accuracy of determining the abnormal position when detecting smoke anomalies can be effectively improved. It is suitable for use in a large-scale space, and to a certain extent, the flexibility and detection accuracy of the device during actual use are improved.

[0017] (2) By independently labeling each suction pipe and independently numbering each suction hole, the suction hole corresponding to the inhaled air flow can be accurately positioned, and a corresponding warning light is set at each suction hole. When the smoke content in the inhaled air flow at the suction hole is detected to be abnormal, the alarm system can not only send the label and number corresponding to the suction hole with abnormal suction to the relevant staff through the background, but also control all the warning lights on the suction pipe where the suction hole with abnormal suction is located to flash at a low frequency, and control the warning light corresponding to the abnormal suction to flash at a high frequency, facilitating the staff to quickly and accurately locate the position of the abnormal suction, and improving the timeliness of the staff to handle relevant emergencies to a certain extent.

[0018] (3) The device can use the first switching mechanism to realize the suction switching operation in different suction pipes, and use the second switching mechanism to realize the reset suction operation of the inner pipe and the valve plate in different suction pipes. With the cooperation of the auxiliary mechanism, the intake control and cyclic reset of many suction pipes can be flexibly adjusted, improving the flexibility of the device in the actual use process to a certain extent.

[0019] (4) When the device is in use, by respectively arranging the first air pump and the second air pump at both ends of the main motor, and with the connection of the coupling, the first air pump and the second air pump can share the drive of the main motor, which is beneficial to reducing the usage amount of the main motor in the device. It can not only reduce the manufacturing cost of the device, but also effectively improve the internal space compactness of the device. Through the setting of the coupling, the first air pump and the second air pump share the same main motor, and the start and stop of the second air pump can be flexibly controlled without interfering with the start of the first air pump, effectively improving the flexibility of the device in the actual use process. Description of the Drawings

[0020] Figure 1 is a three-dimensional view of the present application;

[0021] Figure 2 is a three-dimensional view of the first pipe joint, suction pipe and second pipe joint of the present application;

[0022] Figure 3 is an exploded view of the suction pipe, cover plate and inner pipe of the present application;

[0023] Figure 4 is a three-dimensional view of the first air pump, main motor and second air pump of the present application;

[0024] Figure 5 is the present application Figure 4 in an exploded view of the structure;

[0025] Figure 6 is a top sectional view of the present application;

[0026] Figure 7 is the present applicationFigure 6 Enlarged view at position A in

[0027] Figure 8 in this application Figure 6 Enlarged view at position B in

[0028] Figure 9 Top view of this application

[0029] Figure 10 in this application Figure 9 Cross-sectional view taken along line C-C in

[0030] Figure 11 in this invention Figure 10 Enlarged view at position E in

[0031] Figure 12 in this invention Figure 9 Cross-sectional view taken along line D-D in

[0032] Explanation of reference numerals in the figure:

[0033] 1. Housing; 101. First air pump; 102. Main motor; 103. Smoke detection chamber; 2. First pipe joint; 201. Suction pipe; 202. Suction hole; 203. Limit ring; 204. Cover plate; 205. First magnet; 206. Inner pipe; 207. Valve plate; 208. Through hole; 209. Second magnet; 210. Support ring; 3. Outer connecting pipe; 301. Second air pump; 302. Second pipe joint; 4. First disc; 401. Second disc; 402. Electromagnet; 403. Third magnet; 5. First round box; 501. First adapter pipe; 502. First rotating cylinder; 503. First docking hole; 504. First micro motor; 6. Second round box; 601. Second adapter pipe; 602. Second rotating cylinder; 603. Second docking hole; 604. Second micro motor. Detailed implementation manners

[0034] The embodiments will describe the technical solutions of this application clearly and completely in conjunction with the accompanying drawings of the specification. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative efforts fall within the scope of protection of this application.

[0035] Embodiment:

[0036] This invention provides an intelligent adaptive adjustment aspirating smoke detector and its alarm system. Please refer to Figure 1 - Figure 12, including a housing 1, a first air pump 101 and a main motor 102 are fixed inside the housing 1, a smoke detection chamber 103 is fixed inside the housing 1, and the smoke detection chamber 103 is connected to the air outlet of the first air pump 101. A circuit main board is installed inside the housing 1, and an alarm unit and a wireless data transmission module are integrated on the circuit main board. A first pipe joint 2 connected to the air inlet of the first air pump 101 is fixed on the housing 1, and an air suction pipe 201 is communicated with the outside of the first pipe joint 2. A plurality of uniformly distributed air suction holes 202 are formed on the outer end wall of the air suction pipe 201, and symmetrically arranged cover plates 204 are rotatably installed in the air suction holes 202. A torsion spring is installed at the rotational connection of the cover plate 204 and the air suction hole 202. A first magnet 205 is fixed on the cover plate 204. An inner pipe 206 is slidably installed in the air suction pipe 201, and a valve plate 207 adapted to the internal size of the air suction pipe 201 is fixed at one end of the inner pipe 206 away from the first pipe joint 2. A through hole 208 is formed on the outer end wall of the inner pipe 206, and a second magnet 209 magnetically repulsive to the first magnet 205 is fixed inside the inner pipe 206. A plurality of first pipe joints 2 are provided, and each first pipe joint 2 is externally connected to an air suction pipe 201.

[0037] During the use of the device, the circuit main board is used to control the device as a whole. A plurality of air suction pipes 201 are installed in different areas of the site space, and the plurality of air suction holes 202 formed thereon are used for sucking air flow into different areas. At the same time, only one air suction hole 202 on the same air suction pipe 201 will be in an open state. When sucking air flow, the main motor 102 installed in the housing 1 is powered on and started, driving the fan blades in the first air pump 101 to rotate at a high speed, and performing an air suction operation on the first pipe joint 2. This enables the air flow in the external environment to enter the air suction pipe 201 through the open air suction hole 202, then enter the first air pump 101 along the first pipe joint 2, and finally enter the smoke detection chamber 103 and be detected by the sensor in the smoke detection chamber 103. The smoke detector is equipped with an alarm system. When it is detected that the smoke content in the inhaled air flow exceeds the standard, the alarm unit will be activated and will give a warning reminder to relevant personnel through the wireless data transmission module.

[0038] Each suction pipe 201 has an independent label for marking the position of the area corresponding to the suction pipe 201. Numerous suction holes 202 on each suction pipe 201 have independent numbers. Through the label of the suction pipe 201 and the number of the suction hole 202, the suction hole 202 corresponding to the inhaled air flow can be accurately positioned. A warning light is correspondingly arranged at each suction hole 202. When the smoke content in the air inhaled by a certain suction hole 202 is detected to be abnormal, the alarm system will not only send the label and number corresponding to the suction hole 202 with abnormal suction to the relevant staff through the background, but also control all the warning lights on the suction pipe 201 where the suction hole 202 with abnormal suction is located to flash at a low frequency, and control the warning light corresponding to the abnormal suction to flash at a high frequency, so as to facilitate the staff to timely and accurately locate the position of the abnormal suction and facilitate the staff to timely handle the relevant dangerous situations.

[0039] Please refer to Figure 6 , an auxiliary mechanism connected to the suction pipe 201 is installed in the housing 1. The auxiliary mechanism includes an outer connecting pipe 3 fixedly communicated with the suction pipe 201, and the outer connecting pipe 3 is located at one end of the suction pipe 201 away from the first pipe joint 2. A solenoid valve is fixed in the outer connecting pipe 3. The auxiliary mechanism further includes a second air pump 301 fixedly installed in the housing 1 and a second pipe joint 302 communicated with the air inlet of the second air pump 301. The size of the fan blade in the second air pump 301 is set to be twice the size of the fan blade in the first air pump 101. The second pipe joint 302 is fixedly communicated with one end of the suction pipe 201 away from the first pipe joint 2.

[0040] During the use of the device, the suction position can be flexibly adjusted by controlling the movement of the inner pipe 206 and the valve plate 207 in the suction pipe 201. In the initial state, the inner pipe 206 drives the valve plate 207 to be at one end of the suction pipe 201 close to the outer connecting pipe 3, and the cover plate 204 plugs the suction hole 202 under the elastic support of the torsion spring, so that numerous suction holes 202 on the suction pipe 201 are in a closed state.

[0041] Please refer to Figure 2 , Figure 3 and Figure 6 - Figure 7, after the first air pump 101 starts the air extraction operation, when it is necessary to control the inner tube 206 to drive the valve plate 207 to move towards the first pipe joint 2 for adjustment, the solenoid valve in the outer connecting pipe 3 is opened. In this state, the end of the air suction pipe 201 far from the first pipe joint 2 is in a state of being connected to the outside atmosphere. With the suction of the air flow by the first air pump 101, the valve plate 207 can be driven to drive the inner tube 206 to move towards the first pipe joint 2 in the air suction pipe 201. By controlling the opening and closing of the solenoid valve in the outer connecting pipe 3, the situation of the valve plate 207 driving the inner tube 206 to move in the air suction pipe 201 can be controlled. When the inner tube 206 moves to align with the air suction hole 202, due to the magnetic repulsion between the second magnet 209 and the first magnet 205 on the cover plate 204 in the corresponding air suction hole 202, the cover plate 204 is flipped outwards to open, which makes the air suction hole 202 in a smooth state. At this time, the air flow in the external environment can enter the inner tube 206 through the opened air suction hole 202 and the through hole 208, then enter the air suction pipe 201, and finally be sucked into the smoke detection chamber 103 through the first pipe joint 2 for detection. When the inner tube 206 carrying the second magnet 209 passes over the air suction hole 202, the magnetic repulsion of the second magnet 209 on the first magnet 205 is lost, so that the cover plate 204 is re-closed in the air suction hole 202, ensuring the stability of the device when accurately sucking gas through the air suction hole 202 for smoke detection.

[0042] When the inner tube 206 drives the valve plate 207 to reach the end of the air suction pipe 201 close to the first pipe joint 2, in order to realize the continuous cyclic operation of the device, the inner tube 206 and the valve plate 207 need to be reset to the end of the air suction pipe 201 close to the outer connecting pipe 3. At this time, the staff only needs to control the second air pump 301 to start. With the solenoid valve in the outer connecting pipe 3 closed, air extraction operation is carried out on the air suction pipe 201 from the end of the air suction pipe 201 close to the outer connecting pipe 3, driving the inner tube 206 and the valve plate 207 to return to the initial state. By repeating such operations, the inner tube 206 and the valve plate 207 move cyclically in the air suction pipe 201, realizing the cyclic control of the suction position.

[0043] During the use of the device, by arranging a large number of air suction pipes 201, the air suction operation can be carried out by distributing the air suction pipes 201 in different areas. And by opening a large number of uniformly distributed air suction holes 202 on each air suction pipe 201, with the control of air flow suction, the inner tube 206 and the valve plate 207 are driven to move cyclically in the air suction pipe 201, so that the device can be controlled to accurately suck air flow in the same area. With mutual cooperation, the range of the device for sucking air flow to detect smoke can be greatly improved, and the accuracy of judging the abnormal position when the detected smoke is abnormal can be effectively improved. It is suitable for use in a large-range space and to a certain extent improves the flexibility and detection accuracy of the device during actual use.

[0044] Please refer toFigure 1 , Figure 5 , Figure 8 and Figure 10 , the second pipe joint 302 is also provided with a plurality of them. A first switching mechanism is installed between the air inlet of the first air pump 101 and the plurality of first pipe joints 2, and a second switching mechanism is installed between the air inlet of the second air pump 301 and the plurality of second pipe joints 302. The first switching mechanism includes a first circular box 5 fixedly communicated with the air inlet of the first air pump 101, and a plurality of first adapter pipes 501 are arranged in a circumferential distribution on the outer end wall of the first circular box 5. The plurality of first adapter pipes 501 are respectively fixedly communicated with the plurality of first pipe joints 2. A first rotating cylinder 502 is rotatably installed in the first circular box 5, and a first docking hole 503 corresponding to the plurality of first adapter pipes 501 is arranged on the end wall of the first rotating cylinder 502. A first micro motor 504 for driving the first rotating cylinder 502 to rotate is fixed on the first circular box 5. The second switching mechanism includes a second circular box 6 fixedly communicated with the air inlet of the second air pump 301, and a plurality of second adapter pipes 601 are arranged in a circumferential distribution on the outer end wall of the second circular box 6. The plurality of second adapter pipes 601 are respectively fixedly communicated with the plurality of second pipe joints 302. A second rotating cylinder 602 is rotatably installed in the second circular box 6, and a second docking hole 603 corresponding to the plurality of second adapter pipes 601 is arranged on the end wall of the second rotating cylinder 602. A second micro motor 604 for driving the second rotating cylinder 602 to rotate is fixed on the second circular box 6.

[0045] During the use of the device, the device can use the first switching mechanism to realize the suction switching operation in different suction pipes 201. Each first adapter pipe 501 is connected to a different first pipe joint 2. After the first micro motor 504 is powered on and started, it will drive the first rotating cylinder 502 fixedly connected to its drive shaft to rotate. By means of the rotation of the first rotating cylinder 502, the first docking hole 503 is driven to be docked with different first adapter pipes 501, so as to realize the state that the plurality of first pipe joints 2 are connected to the first air pump 101 one by one, and further realize the intake switching of the plurality of suction pipes 201. Similarly, the device can use the second switching mechanism to realize the reset suction operation of the inner pipe 206 and the valve plate 207 in different suction pipes 201. Each second adapter pipe 601 is connected to a different second pipe joint 302. When the second micro motor 604 is powered on and started, it will drive the second rotating cylinder 602 fixedly connected to its drive shaft to rotate. By means of the rotation of the second rotating cylinder 602, the second docking hole 603 is driven to be docked with different second adapter pipes 601, so as to realize the state that the plurality of second pipe joints 302 are connected to the second air pump 301 one by one, and further realize the reset control of the inner pipe 206 and the valve plate 207 in the plurality of suction pipes 201. By setting the first switching structure and the second switching mechanism, the intake control and cyclic reset of the plurality of suction pipes 201 can be flexibly adjusted, which improves the flexibility of the device during actual use to a certain extent.

[0046] Please refer to Figure 7 , the cover plate 204 is installed on one side of the air suction hole 202 away from the center position of the air suction pipe 201. A limiting ring 203 is fixed on one side of the air suction hole 202 close to the center position of the air suction pipe 201, and the inner diameter of the limiting ring 203 is smaller than the inner diameter of the air suction hole 202. When the device is in use, by arranging the limiting ring 203 on one side of the air suction hole 202 close to the center position of the air suction pipe 201, and by virtue of the setting that the inner diameter of the limiting ring 203 is smaller than the inner diameter of the air suction hole 202, the cover plate 204 can be blocked. Under normal conditions, the cover plate 204 can be stably blocked in the air suction hole 202 by means of the elastic support of the torsion spring at the rotation connection position, and is in close fit with the limiting ring 203. With their mutual cooperation, the sealing performance of the air suction hole 202 when it is normally closed can be effectively improved, avoiding misjudgment of the intake position of the inhaled air due to leakage at the air suction hole 202, which is beneficial to ensuring the stability and accuracy of the device during actual use.

[0047] Please refer to Figure 3 and Figure 7 , a support ring 210 adapted to the internal dimensions of the air suction pipe 201 is fixed at one end of the inner pipe 206 close to the first pipe joint 2. During the use of the device, the valve plate 207 is used to divide the inside of the air suction pipe 201 into two independent spaces. The outer diameter of the inner pipe 206 is smaller than the inner diameter of the air suction pipe 201, which allows a gap to remain between the inner pipe 206 and the air suction pipe 201, facilitating the communication between the inside of the inner pipe 206 and the air suction hole 202 through the through hole 208. This enables the device to use without particularly limiting the state of the inner pipe 206, which is beneficial to ensuring the stability and convenience of the device during actual use. By fixedly installing the second magnet 209 at the end of the inner pipe 206, the two ends of the inner pipe 206 can be supported in cooperation with the valve plate 207, making the movement and adjustment of the inner pipe 206 in the air suction pipe 201 smoother and more stable.

[0048] Please refer to Figure 4 - Figure 6 and Figure 10 - Figure 11, the first air pump 101 and the second air pump 301 are respectively arranged on the outer sides of both ends of the main motor 102. Both ends of the rotor of the main motor 102 penetrate through the outer side of its body. One end of the rotor of the main motor 102 is directly connected to the fan blade in the first air pump 101, and a coupling is connected between the other end of the rotor of the main motor 102 and the fan blade in the second air pump 301. The coupling includes a first disc 4 coaxially fixed to the rotor of the main motor 102 and a second disc 401 coaxially fixed to the fan blade of the second air pump 301. The first disc 4 and the second disc 401 are mutually attached with a 1-mm gap left. A number of circumferentially distributed electromagnets 402 are fixed in the first disc 4, and the magnetic pole directions of two adjacent electromagnets 402 are opposite. A number of circumferentially distributed third magnets 403 are fixed in the second disc 401, and the magnetic pole directions of two adjacent third magnets 403 are opposite.

[0049] When the device is in use, the first air pump 101 and the second air pump 301 are respectively arranged at both ends of the main motor 102. With the connection of the coupling, this enables the first air pump 101 and the second air pump 301 to share the drive of the main motor 102, which is beneficial to reducing the usage amount of the main motor 102 in the device. It can not only reduce the manufacturing cost of the device but also effectively improve the compactness of the internal space of the device. After the main motor 102 starts, it is directly connected to the fan blade in the first air pump 101 through the rotor, and can directly drive the first air pump 101. When it is necessary to drive the second air pump 301, the electromagnets 402 are powered on and started. After the electromagnets 402 are powered on, they generate magnetic force and magnetically attract the third magnets 403, causing the first disc 4 and the second disc 401 to be magnetically connected. The second disc 401 and the first disc 4 maintain a state of synchronous rotation, providing rotational drive for the second air pump 301. When it is not necessary to start the second air pump 301, the power supply to the electromagnets 402 is terminated, the magnetic force disappears, and the magnetic connection between the first disc 4 and the second disc 401 is released. The second air pump 301 is no longer driven by the main motor 102. Through the setting of the coupling, the first air pump 101 and the second air pump 301 share the same main motor 102, and the start and stop of the second air pump 301 can be flexibly controlled without interfering with the start of the first air pump 101, effectively improving the flexibility of the device during actual use.

[0050] The above is only the best implementation mode adopted by this application in combination with the current actual needs, but the protection scope of this application is not limited thereto.

Claims

1. An aspirating smoke detector with intelligent adaptive adjustment, comprising a housing (1), characterized in that, A first air pump (101) and a main motor (102) are fixed inside the housing (1). A smoke detection chamber (103) is fixed inside the housing (1), and the smoke detection chamber (103) is connected to the air outlet of the first air pump (101). A circuit main board is installed inside the housing (1), and an alarm unit and a wireless data transmission module are integrated on the circuit main board. A first pipe joint (2) connected to the air inlet of the first air pump (101) is fixed on the housing (1), and an air suction pipe (201) is communicated with the outside of the first pipe joint (2). A plurality of uniformly distributed air suction holes (202) are formed in the outer end wall of the air suction pipe (201), and symmetrically arranged cover plates (204) are rotatably installed in the air suction holes (202). A torsion spring is installed at the rotational connection of the cover plate (204) and the air suction hole (202). A first magnet (205) is fixed on the cover plate (204). An inner pipe (206) is slidably installed in the air suction pipe (201), and a valve plate (207) adapted to the internal size of the air suction pipe (201) is fixed at one end of the inner pipe (206) away from the first pipe joint (2). A through hole (208) is formed in the outer end wall of the inner pipe (206). A second magnet (209) magnetically repulsive to the first magnet (205) is fixed inside the inner pipe (206). An auxiliary mechanism connected to the air suction pipe (201) is installed inside the housing (1).

2. The aspirating smoke detector with intelligent adaptive adjustment according to claim 1, wherein The cover plate (204) is installed on one side of the air suction hole (202) away from the center of the air suction pipe (201). A limiting ring (203) is fixed on one side of the air suction hole (202) close to the center of the air suction pipe (201), and the inner diameter of the limiting ring (203) is smaller than the inner diameter of the air suction hole (202).

3. The aspirating smoke detector with intelligent adaptive adjustment according to claim 1, wherein, A support ring (210) adapted to the internal size of the air suction pipe (201) is fixed at one end of the inner pipe (206) close to the first pipe joint (2).

4. The aspirating smoke detector with intelligent adaptive adjustment according to claim 1, characterized in that, The auxiliary mechanism includes an outer connecting pipe (3) fixedly communicated with the air suction pipe (201), and the outer connecting pipe (3) is located at one end of the air suction pipe (201) away from the first pipe joint (2). An electromagnetic valve is fixed inside the outer connecting pipe (3).

5. The aspirating smoke detector with intelligent adaptive adjustment according to claim 4, wherein The auxiliary mechanism further includes a second air pump (301) fixedly installed inside the housing (1), and a second pipe joint (302) communicated with the air inlet of the second air pump (301). The size of the fan blade inside the second air pump (301) is set to be twice the size of the fan blade inside the first air pump (101). The second pipe joint (302) is fixedly communicated with one end of the air suction pipe (201) away from the first pipe joint (2).

6. The aspirating smoke detector with intelligent adaptive adjustment according to claim 5, characterized in that, The first air pump (101) and the second air pump (301) are respectively arranged on the outer sides of both ends of the main motor (102). Both ends of the rotor of the main motor (102) penetrate to the outside of its body. One end of the rotor of the main motor (102) is directly connected to the fan blade inside the first air pump (101). A coupling is connected between the other end of the rotor of the main motor (102) and the fan blade inside the second air pump (301).

7. The aspirating smoke detector with intelligent adaptive adjustment according to claim 6, characterized in that, The coupler includes a first disc (4) coaxially fixed to the rotor of the main motor (102), and a second disc (401) coaxially fixed to the impeller of the second air pump (301). The first disc (4) and the second disc (401) are in mutual contact with a 1-mm gap therebetween. A plurality of electromagnets (402) are fixedly arranged in the first disc (4) in a circumferential distribution, and the magnetic pole directions of two adjacent electromagnets (402) are opposite. A plurality of third magnets (403) are fixedly arranged in the second disc (401) in a circumferential distribution, and the magnetic pole directions of two adjacent third magnets (403) are opposite.

8. The aspirating smoke detector with intelligent adaptive adjustment according to claim 5, characterized in that, A plurality of first pipe connectors (2) are provided. Each first pipe connector (2) is externally connected to an intake pipe (201). A plurality of second pipe connectors (302) are also provided. A first switching mechanism is installed between the intake port of the first air pump (101) and the plurality of first pipe connectors (2), and a second switching mechanism is installed between the intake port of the second air pump (301) and the plurality of second pipe connectors (302).

9. The aspirating smoke detector with intelligent adaptive adjustment according to claim 8, characterized in that, The first switching mechanism includes a first circular box (5) fixedly communicated with the intake port of the first air pump (101). A plurality of first adapter pipes (501) are provided in a circumferential distribution on the outer end wall of the first circular box (5). The plurality of first adapter pipes (501) are respectively fixedly communicated with the plurality of first pipe connectors (2). A first rotating cylinder (502) is rotatably installed in the first circular box (5), and a first docking hole (503) corresponding to the plurality of first adapter pipes (501) is provided on the end wall of the first rotating cylinder (502). A first micro motor (504) for driving the first rotating cylinder (502) to rotate is fixed on the first circular box (5). The second switching mechanism includes a second circular box (6) fixedly communicated with the intake port of the second air pump (301). A plurality of second adapter pipes (601) are provided in a circumferential distribution on the outer end wall of the second circular box (6). The plurality of second adapter pipes (601) are respectively fixedly communicated with the plurality of second pipe connectors (302). A second rotating cylinder (602) is rotatably installed in the second circular box (6), and a second docking hole (603) corresponding to the plurality of second adapter pipes (601) is provided on the end wall of the second rotating cylinder (602). A second micro motor (604) for driving the second rotating cylinder (602) to rotate is fixed on the second circular box (6).

10. An aspirating smoke detection and alarm system with intelligent adaptive adjustment, the alarm system being applicable to the aspirating smoke detector with intelligent adaptive adjustment as described in any one of claims 1-9, characterized in that, A number of suction pipes (201) are arranged in different areas. After the first air pump (101) and the second air pump (301) are started, the inner pipe (206) drives the valve plate (207) to move orderly in the suction pipe (201) under the control of the air flow. By virtue of the magnetic repulsion between the second magnet (209) and the first magnet (205), the cover plates (204) in the suction holes (202) at different positions are driven to open, so as to suck the air flow at the corresponding positions of different suction holes (202) on the same suction pipe (201). And by means of the rotation of the first rotating cylinder (502) in the first round box (5), the communication state between the first docking hole (503) and different first adapter pipes (501) is switched, so as to realize the control of the air flow suction of a number of different suction pipes (201). Each suction hole (202) on each suction pipe (201) has an independent number. The air flow sucked through different suction holes (202) is finally subjected to smoke detection in the smoke detection bin (103). If the smoke content exceeds the standard, an alarm reminder will be sent through the background. A warning light is installed at each suction hole (202). When an abnormality in the inhaled air flow triggers an alarm, the warning light on the corresponding suction pipe (201) flashes at a low frequency, while the warning light at the corresponding suction hole (202) flashes at a high frequency.

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