A micro-air flow disturbance detection and alarm device

Abstract

The present application relates to the technical field of smoke alarms, and discloses a micro-airflow disturbance detection alarm device, comprising: a fixed frame, a mounting plate is fixed on the top of the fixed frame, a signal transceiver, a controller and an alarm are installed on one side of the fixed frame; a connecting tube, the connecting tube is installed inside the mounting plate through a flipping mechanism, and a smoke detection mechanism for detecting airflow is installed on the top and bottom ends of the connecting tube; by using two smoke detection mechanisms and cooperating with the function of the flipping mechanism, the two smoke detection mechanisms can be made to work in turn, when the lower smoke detection mechanism is working, air will enter from the lower smoke detection mechanism, and then the air will pass through the upper smoke detection mechanism, and then the dustproof net on the upper smoke detection mechanism will be backblown, and the two will cooperate, so that there is always a smoke detection mechanism in the entire alarm device that can work efficiently and stably.

Description

Technical Field

[0001] The invention belongs to the technical field of smoke alarms, and in particular is a micro-airflow disturbance detection and alarm device. Background Art

[0002] Smoke alarm, also known as fire smoke alarm, smoke sensor, smoke inductor, etc., is powered by a bus. Multiple devices can be connected to the bus. They are networked and communicated with the fire alarm controller to form an alarm system. There is no sound at the scene when the alarm occurs, but the host has sound and light prompts. This type of smoke alarm device is generally called a smoke detector.

[0003] However, during the use of the smoke alarm currently on the market, it is found that the above technology has at least the following problems:

[0004] 1. When the alarm is in use, when the air flow rate around it is high and the air flow direction is not toward the air inlet of the smoke alarm, the smoke alarm will not be able to detect the air in time;

[0005] 2. After the alarm is used for a long time, the air inlet or the monitoring end of the sensor will be covered with a thick layer of dust, which will affect the detection accuracy of the alarm;

[0006] 3. The alarm’s air extraction location is relatively concentrated. When the air mobility is low, it is difficult to warn the staff in the first place. Summary of the invention

[0007] Technical issues solved:

[0008] In view of the deficiencies in the prior art, the present invention provides a micro-airflow disturbance detection and alarm device, which solves the problems mentioned in the background technology.

[0009] Technical solution:

[0010] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0011] A micro-airflow disturbance detection and alarm device, comprising:

[0012] A fixing frame, a mounting plate is fixed on the top of the fixing frame, and a signal transceiver, a controller and an alarm are installed on one side of the fixing frame;

[0013] A connecting tube, the connecting tube is installed inside the mounting plate through a flip mechanism, and a smoke detection mechanism for detecting airflow is installed at the top and bottom of the connecting tube;

[0014] The smoke detection mechanism includes a connecting ring, the connecting ring is fixed to the end of the connecting tube, a supporting plate is fixed inside the connecting ring, an ionization smoke sensor is fixed to the supporting plate, and a plurality of air guide holes are opened inside the supporting plate outside the ionization smoke sensor;

[0015] A plurality of air outlet holes, wherein the plurality of air outlet holes are arranged in a circular array outside the fixed frame, and a filter screen is arranged inside the air outlet holes;

[0016] The signal transceiver, the alarm and the ionization smoke sensor are all electrically connected to the controller.

[0017] In a possible implementation, a dust cover is installed on the top of the connecting ring located outside the ionization smoke sensor.

[0018] In a possible implementation, the flipping mechanism includes a connecting shaft, a first motor and a first vertical plate, the first vertical plate and the first motor are both fixed inside the fixed frame, and the first vertical plate is close to one side of the connecting tube, the first motor is located on one side of the first vertical plate, the connecting shaft is rotatably connected to the first vertical plate through a rotating shaft, one end of the connecting shaft is connected to the connecting tube, and the other end of the connecting shaft is meshed with a transmission shaft of the first motor through a gear, the first motor is electrically connected to the controller, and after the first motor rotates, the matching gear can drive the connecting shaft to rotate, and then drive the connecting tube to rotate, so that the connecting tube is flipped one hundred and eighty degrees, thereby exchanging the positions of the two smoke detection mechanisms.

[0019] In a possible implementation, a second vertical plate is disposed on one side of the connecting tube relative to the first vertical plate, a bottom end of the second vertical plate is connected to the mounting plate, and a support member is connected to one side of the second vertical plate;

[0020] The support member is composed of a connecting column with a columnar structure and a bottom plate with a plate-like structure. One end of the connecting column is fixed to the second vertical plate, and the other end of the connecting column extends to the interior of the connecting tube. The bottom plate is located inside the connecting tube, and a fan is installed on the bottom plate. The fan is located between the two smoke detection mechanisms. The air outlet of the fan faces upward, and the fan is electrically connected to the controller to ensure that the air outlet direction of the fan is always upward.

[0021] In a possible implementation, a bearing is provided between the connecting column and the connecting cylinder:

[0022] In a possible implementation, a connecting cover is fixed to the bottom of the fixed frame outside the dust cover, an air inlet hole is provided at the bottom of the connecting cover, an ash outlet hole is provided at the bottom of the fixed frame near the edge, and an ash collecting box is fixed to the outside of the connecting cover by bolts, and the opening of the ash collecting box is connected to the ash outlet hole.

[0023] In some examples, baffles are provided on both sides of the connecting tube inside the fixed frame, a fixing plate is fixed on one side of the bottom of the baffle inside the fixed frame, the fixing plate and the baffle are rotatably connected via an axle, a torsion spring is installed between the axle and the baffle, the torsion spring rotates the baffle toward the connecting tube, and a lifting mechanism for lifting the baffle is provided on the outside of the fixed frame.

[0024] In some examples, the lifting mechanism includes a connecting frame, which is fixed to the front surface of the fixed frame, a second motor is installed on the outside of the connecting frame, a transmission shaft of the second motor extends to the interior of the connecting frame, and a winding wheel is installed inside the connecting frame, two connecting wires are centrally symmetrically connected to the winding wheel, the ends of the two connecting wires are respectively connected to the bottom of the two baffles, and the second motor is electrically connected to the controller.

[0025] In a possible implementation, a connecting pipe is provided inside the air inlet, the connecting pipe is rotatably connected to the connecting cover via a rotating shaft, the outside of the connecting pipe is connected to a plurality of air guide tubes in a circular array, and a plurality of through holes are evenly spaced outside the plurality of air guide tubes.

[0026] In one possible implementation, a third motor is installed on one side of the interior of the connecting cover, a conical gear ring is provided on the outside of the connecting pipe located inside the connecting cover, a bevel gear is installed on the transmission shaft of the third motor, the bevel gear is meshingly connected with the bevel gear ring, and the third motor is electrically connected to the controller.

[0027] Beneficial effects:

[0028] First, by using two smoke detection mechanisms and cooperating with the flip mechanism, the two smoke detection mechanisms can work in turn. When the lower smoke detection mechanism is working, air will enter from the lower smoke detection mechanism, and then the air will pass through the upper smoke detection mechanism, and then back-blow the dust-proof net on the upper smoke detection mechanism. With the cooperation of the two, when one of the smoke detection mechanisms is working, the other smoke detection mechanism is being cleaned, so that there is always one smoke detection mechanism in the entire alarm device that can work efficiently and stably;

[0029] Second, the ion smoke sensor in the smoke detection mechanism can detect the air in the place in real time. With the help of the fan, the air can be forcibly sucked into the inside of the device from bottom to top, thereby avoiding the disturbance of micro-airflow and preventing the air from flowing inside the smoke detection mechanism;

[0030] Third, the baffle in the inclined state can make the dust inside the fixed frame quickly pass through the ash outlet hole and slide into the inside of the ash collecting box. The second motor drives the winding wheel to rotate, and the two baffles can be turned upward under the action of the two connecting wires, the fixed plate and its shaft rod, which can prevent the two smoke detection mechanisms from being affected from turning over and accelerate the sliding process of the baffle dust.

[0031] Fourth, by adding a connecting pipe at the air inlet, and at the same time cooperating with a number of air ducts in a ring array and multiple through holes thereon, air can be extracted and collected from multiple directions to expand the air collection surface of the device, thereby improving the device's air detection accuracy and issuing an alarm in time; through the third motor in conjunction with the conical gear ring and the conical gear, the connecting pipe can be driven to rotate slowly, which can speed up the air flow process around the air duct, so that the air at different positions can be further quickly extracted and detected by the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 is a front view of the first embodiment of the present invention;

[0033] Figure 2 is a schematic structural diagram of Embodiment 1 of the present invention;

[0034] Figure 3 is a cross-sectional view of the connecting tube of the present invention;

[0035] Figure 4 is a structural diagram of Embodiment 2 of the present invention;

[0036] Figure 5 is a top view of the baffle in the second embodiment of the present invention;

[0037] Figure 6 It is a structural diagram of embodiment 3 of the present invention.

[0038] Figure numerals: 1. fixing frame; 2. mounting plate; 3. signal transceiver; 4. controller; 5. alarm; 6. dust cover; 7. connecting ring; 8. air outlet; 9. filter; 10. connecting shaft; 11. first motor; 12. first vertical plate; 13. connecting frame; 14. through hole; 15. second vertical plate; 16. support member; 17. connecting tube; 18. fan; 19. supporting plate; 20. air guide hole; 21. ion smoke sensor; 22. ash outlet hole; 23. ash collection box; 24. winding wheel; 25. air inlet; 26. connecting cover; 27. connecting wire; 28. torsion spring; 29. ​​fixing plate; 30. baffle; 31. connecting pipe; 32. second motor; 33. third motor; 34. air guide pipe. DETAILED DESCRIPTION

[0039] The embodiments of the present application solve the problems in the prior art by providing a micro-airflow disturbance detection and alarm device.

[0040] The technical solution in the embodiment of the present application is to solve the above problems, and the overall idea is as follows:

[0041] Embodiment 1:

[0042] The specific structure of this embodiment is as follows: Figure 1 and 3 As shown, a micro-airflow disturbance detection and alarm device comprises:

[0043] A fixing frame 1, a mounting plate 2 is fixed on the top of the fixing frame 1, and a signal transceiver 3, a controller 4 and an alarm 5 are installed on one side of the fixing frame 1;

[0044] A connecting tube 17, the connecting tube 17 is installed inside the mounting plate 2 through a flip mechanism, and a smoke detection mechanism for detecting airflow is installed at the top and bottom of the connecting tube 17;

[0045] The smoke detection mechanism includes a connecting ring 7, which is fixed to the end of a connecting tube 17, a supporting plate 19 is fixed inside the connecting ring 7, an ionization smoke sensor 21 is fixed to the supporting plate 19, and a plurality of air guide holes 20 are opened inside the supporting plate 19 outside the ionization smoke sensor 21;

[0046] A plurality of air outlet holes 8 are provided in a circular array outside the fixing frame 1, and a filter screen 9 is provided inside the air outlet holes 8;

[0047] The signal transceiver 3 , the alarm 5 and the ionization smoke sensor 21 are all electrically connected to the controller 4 .

[0048] In some examples, a dust cover 6 is installed on the top of the connecting ring 7 outside the ionization smoke sensor 21 .

[0049] In some examples, the flipping mechanism includes a connecting shaft 10, a first motor 11 and a first vertical plate 12. The first vertical plate 12 and the first motor 11 are both fixed inside the fixed frame 1, and the first vertical plate 12 is close to one side of the connecting tube 17. The first motor 11 is located on one side of the first vertical plate 12. The connecting shaft 10 is rotatably connected to the first vertical plate 12 through a rotating shaft. One end of the connecting shaft 10 is connected to the connecting tube 17, and the other end of the connecting shaft 10 is meshed with the transmission shaft of the first motor 11 through gears. The first motor 11 is electrically connected to the controller 4. After the first motor 11 rotates, the matching gear can drive the connecting shaft 10 to rotate, and then drive the connecting tube 17 to rotate, so that the connecting tube 17 is flipped one hundred and eighty degrees, thereby exchanging the positions of the two smoke detection mechanisms.

[0050] In some examples, the second vertical plate 15 is disposed on one side of the connecting tube 17 relative to the first vertical plate 12, the bottom end of the second vertical plate 15 is connected to the mounting plate 2, and one side of the second vertical plate 15 is connected to a support member 16;

[0051] The support member 16 is composed of a connecting column with a columnar structure and a base plate with a plate-like structure. One end of the connecting column is fixed to the second vertical plate 15, and the other end of the connecting column extends to the inside of the connecting tube 17. The base plate is located inside the connecting tube 17, and a fan 18 is installed on the base plate. The fan 18 is located between the two smoke detection mechanisms. The air outlet of the fan 18 faces upward, and the fan 18 is electrically connected to the controller 4 to ensure that the air outlet direction of the fan 18 is always upward.

[0052] In some examples, a bearing is provided between the connecting column and the connecting cylinder 17 .

[0053] By adopting the above technical solution:

[0054] The mounting plate 2 is fixed to the top of the wall by means of collision bolts. During use, the signal transceiver 3 can remotely exchange information with the terminal so that the terminal personnel can control other electrical components in the device through the controller 4;

[0055] During the operation of the device, the ion smoke sensor 21 in the smoke detection mechanism can detect the air in the place in real time, and with the action of the fan 18, the air can be forcibly sucked into the inside of the device from bottom to top, thereby avoiding the disturbance of micro-airflow and preventing the air from flowing inside the smoke detection mechanism;

[0056] Since two smoke detection mechanisms are provided and cooperate with the function of the flip mechanism, the two smoke detection mechanisms can work in turn. When the lower smoke detection mechanism is working, air will enter from the lower smoke detection mechanism, and then the air will pass through the upper smoke detection mechanism, and then back-blow the dustproof net 6 on the upper smoke detection mechanism. With the cooperation of the two, when one of the smoke detection mechanisms is working, the other smoke detection mechanism is being cleaned, so that there is always one smoke detection mechanism in the entire alarm device that can work efficiently and stably;

[0057] After the dust is backblown, the air will pass through the air outlet 8, and the dust will be blocked by the filter 9, which also plays a role in removing dust from the environment.

[0058] Embodiment 2:

[0059] The specific structure of this embodiment is as follows: Figure 4-5 As shown, a connecting cover 26 is fixed to the bottom of the fixed frame 1 outside the dust cover 6, an air inlet hole 25 is provided at the bottom of the connecting cover 26, an ash outlet hole 22 is provided at the bottom of the fixed frame 1 near the edge, and an ash collecting box 23 is fixed to the outside of the connecting cover 26 by bolts, and the opening of the ash collecting box 23 is connected to the ash outlet hole 22.

[0060] In some examples, baffles 30 are provided on both sides of the connecting tube 17 inside the fixed frame 1, a fixing plate 29 is fixed on one side of the bottom of the baffle 30 inside the fixed frame 1, the fixing plate 29 and the baffle 30 are rotatably connected by an axle, a torsion spring 28 is installed between the axle and the baffle 30, the torsion spring 28 rotates the baffle 30 toward the direction of the connecting tube 17, and a lifting mechanism for lifting the baffle 30 is provided outside the fixed frame 1.

[0061] In some examples, the lifting mechanism includes a connecting frame 13, which is fixed to the front surface of the fixed frame 1, and a second motor 32 is installed on the outside of the connecting frame 13, and a transmission shaft of the second motor 32 extends to the inside of the connecting frame 13, and a winding wheel 24 is installed inside the connecting frame 13, and two connecting wires 27 are centrally symmetrically connected to the winding wheel 24, and the ends of the two connecting wires 27 are respectively connected to the bottom of the two baffles 30, and the second motor 32 is electrically connected to the controller 4.

[0062] By adopting the above technical solution:.

[0063] After being blocked inside the fixed frame 1, the dust will fall on the top of the two baffles 30. Since the baffles 30 are in an inclined state, the dust will quickly pass through the ash outlet 22 and slide into the inside of the ash collecting box 23 to be collected. The ash collecting box 23 is transparent so that the staff can intuitively see the amount of dust stored in the ash collecting box 23.

[0064] When the two smoke detection mechanisms are in the process of flipping, the second motor 32 will drive the winding wheel 24 to rotate, and under the action of the two connecting wires 27, the fixing plate 29 and its shaft rod, the two baffles 30 can be flipped upward to prevent the flipping process of the two smoke detection mechanisms from being affected, and at the same time, the dust on the baffles 30 can be accelerated to slide off;

[0065] When the two smoke detection mechanisms are turned over, the winding wheel 24 is rotated back to the initial position, and the two baffles 30 are clamped on both sides of the connecting tube 17 in cooperation with the torsion spring 28 .

[0066] Embodiment 3:

[0067] The specific structure of this embodiment is as follows: Figure 6 As shown, a connecting pipe 31 is provided inside the air inlet 25, and the connecting pipe 31 is rotatably connected to the connecting cover 26 via a rotating shaft. The outside of the connecting pipe 31 is connected to a plurality of air guide pipes 34 in a circular array, and a plurality of through holes 14 are evenly spaced outside the plurality of air guide pipes 34.

[0068] In some examples, a third motor 33 is installed on one side of the interior of the connecting cover 26, a conical gear ring is provided on the outside of the connecting tube 31 located inside the connecting cover 26, a bevel gear is installed on the transmission shaft of the third motor 33, the bevel gear is meshed and connected with the bevel gear ring, and the third motor 33 is electrically connected to the controller 4.

[0069] By adopting the above technical solution: by adding a connecting pipe 31 at the air inlet 25, and cooperating with a plurality of air guide pipes 34 in a ring array and a plurality of through holes 14 thereon, air can be extracted and collected from multiple directions to expand the air collection surface of the device, thereby improving the detection accuracy of the device for air and issuing an alarm in time;

[0070] By means of the third motor 33 in cooperation with the conical gear ring and the conical gear, the connecting tube 31 can be driven to rotate slowly, which can speed up the air flow process around the air duct 34, so that the air at different positions can be further quickly extracted and detected by the device. When an abnormality occurs, the alarm 5 will emit an audible and visual alarm to alert the staff.

[0071] Finally, it should be noted that: Obviously, the above embodiments are only examples for clearly explaining the present invention, and are not intended to limit the implementation methods. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from this are still within the scope of protection of the present invention.

Claims

1. A micro air flow disturbance detection and alarm device, It is characterized in that include: A fixed frame (1), a mounting plate (2) being fixed on the top of the fixed frame (1), and a signal transceiver (3), a controller (4) and an alarm (5) being installed on one side of the fixed frame (1); A connecting tube (17), the connecting tube (17) being installed inside the mounting plate (2) through a flip mechanism, and a smoke detection mechanism for detecting airflow being installed at the top and bottom ends of the connecting tube (17); The smoke detection mechanism comprises a connecting ring (7), the connecting ring (7) is fixed to the end of the connecting tube (17), a supporting plate (19) is fixed inside the connecting ring (7), an ionization smoke sensor (21) is fixed to the supporting plate (19), and a plurality of air guide holes (20) are opened inside the supporting plate (19) and outside the ionization smoke sensor (21); A plurality of air outlet holes (8), wherein the plurality of air outlet holes (8) are arranged in a ring array outside the fixed frame (1), and a filter screen (9) is arranged inside the air outlet holes (8); The signal transceiver (3), the alarm (5) and the ionization smoke sensor (21) are all electrically connected to the controller (4); The flip mechanism comprises a connecting shaft (10), a first motor (11) and a first vertical plate (12); the first vertical plate (12) and the first motor (11) are both fixed inside the fixed frame (1), and the first vertical plate (12) is close to one side of the connecting cylinder (17); the first motor (11) is located on one side of the first vertical plate (12); the connecting shaft (10) is rotatably connected to the first vertical plate (12) via a rotating shaft; one end of the connecting shaft (10) is connected to the connecting cylinder (17); the other end of the connecting shaft (10) is meshedly connected to a transmission shaft of the first motor (11) via a gear; and the first motor (11) is electrically connected to a controller (4); The connecting tube (17) is provided with a second vertical plate (15) on one side relative to the first vertical plate (12); the bottom end of the second vertical plate (15) is connected to the mounting plate (2); and one side of the second vertical plate (15) is connected to a support member (16); The support member (16) is composed of a connecting column with a columnar structure and a bottom plate with a plate-like structure. One end of the connecting column is fixed to the second vertical plate (15), and the other end of the connecting column extends to the inside of the connecting tube (17). The bottom plate is located inside the connecting tube (17), and a fan (18) is installed on the bottom plate. The fan (18) is located between the two smoke detection mechanisms, and the air outlet of the fan (18) faces upward. The fan (18) is electrically connected to the controller (4).

2. A micro-airflow disturbance detection and alarm device as claimed in claim 1, Features: The top of the connecting ring (7) is located outside the ionization smoke sensor (21) and is equipped with a dust cover (6).

3. A micro-airflow disturbance detection and alarm device as claimed in claim 1, Features: A bearing is arranged between the connecting column and the connecting cylinder (17).

4. A micro-airflow disturbance detection and alarm device as claimed in claim 1, Features: A connecting cover (26) is fixed to the bottom of the fixed frame (1) outside the dust cover (6), an air inlet hole (25) is provided at the bottom of the connecting cover (26), an ash outlet hole (22) is provided at the bottom of the fixed frame (1) near the edge, an ash collecting box (23) is fixed to the outside of the connecting cover (26) by bolts, and an opening of the ash collecting box (23) is connected to the ash outlet hole (22).

5. A micro-airflow disturbance detection and alarm device as claimed in claim 4, Features: Baffles (30) are arranged on both sides of the connecting tube (17) inside the fixed frame (1), and a fixing plate (29) is fixed on one side of the bottom of the baffle (30) inside the fixed frame (1). The fixing plate (29) and the baffle (30) are rotatably connected via an axle, and a torsion spring (28) is installed between the axle and the baffle (30). The torsion spring (28) rotates the baffle (30) in the direction of the connecting tube (17), and a lifting mechanism for lifting the baffle (30) is arranged outside the fixed frame (1).

6. A micro-airflow disturbance detection and alarm device as claimed in claim 5, Features: The lifting mechanism comprises a connecting frame (13), wherein the connecting frame (13) is fixed to the front surface of the fixing frame (1), a second motor (32) is installed outside the connecting frame (13), a transmission shaft of the second motor (32) extends to the inside of the connecting frame (13), and a winding wheel (24) is installed inside the connecting frame (13), two connecting wires (27) are centrally symmetrically connected to the winding wheel (24), the ends of the two connecting wires (27) are respectively connected to the bottom of two baffles (30), and the second motor (32) is electrically connected to the controller (4).

7. A micro-airflow disturbance detection and alarm device as claimed in claim 4, Features: A connecting pipe (31) is provided inside the air inlet (25), and the connecting pipe (31) is rotatably connected to the connecting cover (26) via a rotating shaft. The outside of the connecting pipe (31) is connected to a plurality of air guide pipes (34) in a circular array, and a plurality of through holes (14) are provided outside the plurality of air guide pipes (34) at equal intervals.

8. A micro-airflow disturbance detection and alarm device as claimed in claim 7, Features: A third motor (33) is installed on one side of the interior of the connection cover (26); a conical gear ring is provided on the exterior of the connection pipe (31) and located inside the connection cover (26); a conical gear is installed on the transmission shaft of the third motor (33); the conical gear is meshingly connected with the conical gear ring; and the third motor (33) is electrically connected to the controller (4).

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