Sampling smoke detection device for intelligent fire fighting

Abstract

The invention discloses a sampling smoke detection device for intelligent fire fighting, and relates to the field of fire fighting, the sampling smoke detection device comprises a host, two air inlet pipes, a detection mechanism, a fan and an air outlet pipe, the upper end of the host is provided with the two air inlet pipes, and the air inlet pipes are connected with the detection mechanism. According to the sampling smoke detection device for intelligent fire fighting, the alternate sealing detection effect is adopted, and the detected gas can be subjected to sealing detection in the continuous gas suction process, so that the influence of gas flow on the detection data is avoided, and the detection accuracy is ensured; according to the air detection device, air enters the detection box, air needing to be detected can be sealed in the detection process in cooperation with the action of a motor, a disc, a convex shaft, a movable frame, a movable frame and a sealing baffle, air flowing is avoided, and air detection can be achieved in cooperation with a laser transmitter and a photoelectric receiver; whether smoke exists in the air or not can be judged according to the intensity of optical signals received by the photoelectric receiver.

Description

Technical Field

[0001] The present invention relates to the field of fire protection technology, and in particular to a sampling smoke detection device for intelligent fire protection. Background Art

[0002] Air sampling smoke detectors, also known as very early fire detectors, are devices that detect fires through active suction. They draw air samples from the protected area through a sampling tube, illuminate the air sample with a laser, and detect scattered light caused by smoke particles, thereby determining smoke concentration and providing early warning of fires. Currently, they are widely used in warehouse management and computer room management.

[0003] In actual use, the existing sampling smoke detection device mainly uses a fan to inhale external air for detection. During the entire detection process, the air keeps flowing continuously under the action of the fan, and the continuous flow of air will greatly affect the accuracy of the detection. Therefore, in response to the above problems, an intelligent sampling smoke detection device for fire protection is designed to better meet the actual use needs. Summary of the Invention

[0004] The purpose of the present invention is to provide a sampling smoke detection device for intelligent fire fighting to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a sampling smoke detection device for intelligent fire fighting, comprising a main unit, an air inlet pipe, a detection mechanism, a fan and an air outlet pipe, two air inlet pipes are installed on the upper end of the main unit, the air inlet pipes and the detection mechanism are interconnected, an adjustment mechanism is also installed in the main unit, the detection mechanism comprises a detection box, a laser transmitter and a photoelectric receiver, the detection box is interconnected with the air inlet pipe, the detection box is interconnected with the fan through a conduit, the fan is connected to the air outlet pipe, a laser transmitter is installed in the detection box, a photoelectric receiver installed in the detection box is arranged opposite to the laser transmitter, the adjustment mechanism comprises a motor, a disc, a cam, a movable frame, a movable frame and a sealing baffle, the motor is fixed Fixed in the host, a disc is fixed on the output end of the motor, a convex shaft is fixed on the disc, the convex shaft and the movable frame are slidably connected, a movable frame is symmetrically fixed on the movable frame, the movable frame and the detection box are slidably connected, an air outlet pipe is fixed on the movable frame, and the air outlet pipe cooperates with the air inlet and air outlet on the detection box to achieve a sealing effect, through the action of the fan, the duct and the air inlet pipe, the outside air enters the detection box, and smoke detection can be achieved by cooperating with the laser transmitter and the photoelectric receiver, and the action of the motor, the disc, the convex shaft, the movable frame, the movable frame and the sealing baffle is used to allow the outside air to alternately enter the detection box, thereby achieving alternating detection, and during the detection process, the air flow in the detection box is avoided to ensure the accuracy of the detection.

[0006] Preferably, a warning light is installed on the upper end face of the host, and a buzzer is installed on the host, and the warning light and the buzzer are electrically connected to the controller. Through the above mechanism, an audible and visual alarm can be realized when smoke is detected, so as to promptly remind the staff to handle and save themselves.

[0007] Preferably, an oxygen production mechanism is installed in the main unit, and the oxygen production mechanism and the oxygen storage mechanism are connected to each other, and the oxygen storage mechanism is installed on the outside of the main unit. Through the above structure, oxygen production and oxygen storage can be achieved, so that oxygen can be provided to trapped people in extreme environments, thereby effectively improving the survival rate of the affected people.

[0008] Preferably, the rotation radius of the convex shaft is equal to the inner width of the movable frame, and the inner height of the movable frame is greater than the rotation diameter of the convex shaft. By limiting the size of the movable frame, a basic guarantee can be provided for the alternating sealing detection of air, thereby ensuring the normal operation of the device.

[0009] Preferably, the oxygen-generating mechanism includes a reaction box, a storage bottle, an electric-controlled valve, a rotating shaft, a stirring rod, a gear, a convex gear rod and a water box. The reaction box is fixed in the main unit, and two storage bottles are fixed on the reaction box, and electric-controlled valves are installed at the lower ends of the two storage bottles. At the same time, hydrogen peroxide is stored in one storage bottle, and manganese dioxide is stored in the other storage bottle. Through the above structure, oxygen manufacturing raw materials can be stored, providing basic guarantees for subsequent oxygen manufacturing.

[0010] Preferably, the reaction box is connected to a rotating shaft on a bearing, and a stirring rod is evenly fixed on the rotating shaft, and a gear is also fixed on the rotating shaft. At the same time, the gear is arranged above the reaction box. During the reaction of hydrogen peroxide and manganese dioxide, the stirring action of the stirring rod can improve the reaction efficiency, thereby ensuring the production rate of oxygen.

[0011] Preferably, the gear and the convex gear rod are meshingly connected, the convex gear rod and the detection mechanism are slidingly connected, and the convex gear rod and the sealing baffle are fixedly connected. When the sealing baffle moves, the convex gear rod is synchronously driven to move, and the transmission action between the convex gear rod and the gear can provide a basic force for the rotation of the rotating shaft and the stirring rod, thereby ensuring the normal operation of the device.

[0012] Preferably, the reaction box is connected to the air inlet one-way valve installed on the water box through a conduit, and the water box is fixed in the main unit. Through the action of the water box, the tiny hydrogen peroxide droplets contained in the oxygen can be absorbed to prevent the tiny hydrogen peroxide droplets from being inhaled by the user and causing harm.

[0013] Preferably, the oxygen storage mechanism includes an elastic bag, a first magnet, a second magnet, a threaded joint, a control valve, a mask and a cover plate. The first magnet is fixed on the elastic bag, and a magnetic attraction structure is formed between the first magnet and the second magnet, and the second magnet is fixed on the main unit. A threaded joint is installed on the upper end of the elastic bag, and the threaded joint is connected to the air outlet one-way valve installed on the water box through a conduit and an air inlet one-way valve. Through the above structure, the disassembly and assembly of the elastic bag can be facilitated, so that in extreme cases, the victims can carry the elastic bag for use to continuously supply oxygen to the victims.

[0014] Preferably, the elastic bag is connected to the mask through a control valve, and a cover plate is nested and installed on the mask. The control valve can control the oxygen discharge amount. The mask fits the user's face well, which can prevent harmful gases from entering from the outside and ensure the safety of the device.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. This intelligent firefighting sampling smoke detector uses an alternating seal detection mechanism to perform seal detection on the detected gas during continuous inhalation, thereby preventing gas flow from affecting the detection data and ensuring detection accuracy. Specifically, air is introduced into the detection box through a fan and an air intake pipe. The motor, disc, cam, movable frame, movable stand, and sealing baffle work together to seal the gas to be detected during the detection process, preventing air flow. Combined with a laser transmitter and photoelectric receiver, air detection is achieved. The strength of the light signal received by the photoelectric receiver can be used to determine whether smoke is in the air.

[0017] 2. This intelligent fire-fighting sampling smoke detection device adopts an oxygen production mechanism and an oxygen storage mechanism. It can provide clean oxygen to trapped people when a fire occurs, thereby improving the survival rate of trapped people and better meeting actual use needs. Specifically, when smoke is detected in the air, the electronically controlled valve opens, allowing the hydrogen peroxide and manganese dioxide in the storage bottle to enter the reaction box to react and produce oxygen. The water box absorbs the tiny hydrogen peroxide droplets in the oxygen, allowing the clean oxygen to enter the elastic bag and be stored. In conjunction with the mask and control valve, it can provide clean oxygen for trapped people. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of the device of the present invention;

[0019] Figure 2 This is a schematic diagram of the exploded three-dimensional structure of the main engine and the oxygen storage mechanism of the present invention;

[0020] Figure 3This is a schematic diagram of the front cross-sectional three-dimensional structure of the host of the present invention;

[0021] Figure 4 It is a schematic diagram of the side cross-sectional three-dimensional structure of the detection mechanism and the adjustment mechanism of the present invention;

[0022] Figure 5 It is a side elevation structural diagram of the adjustment mechanism of the present invention;

[0023] Figure 6 This is a schematic diagram of the three-dimensional structure of the oxygen production mechanism and the oxygen storage mechanism of the present invention;

[0024] Figure 7 It is a schematic diagram of the three-dimensional structure of the oxygen production mechanism of the present invention when viewed from above.

[0025] In the figure: 1. host; 101. warning light; 102. buzzer; 2. air inlet pipe; 3. detection mechanism; 301. detection box; 302. laser transmitter; 303. photoelectric receiver; 4. adjustment mechanism; 401. motor; 402. disc; 403. cam shaft; 404. movable frame; 405. movable frame; 406. sealing baffle; 5. fan; 6. air outlet pipe; 7. oxygen production mechanism; 701. reaction box; 702. storage bottle; 703. electric control valve; 704. rotating shaft; 705. stirring rod; 706. gear; 707. cam gear rod; 708. water box; 8. oxygen storage mechanism; 801. elastic bag; 802. first magnet; 803. second magnet; 804. threaded joint; 805. control valve; 806. mask; 807. cover plate. DETAILED DESCRIPTION

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0027] See also Figure 1-Figure 7The present invention provides a technical solution: a sampling smoke detection device for intelligent fire fighting, comprising a main unit 1, an air inlet pipe 2, a detection mechanism 3, a fan 5 and an air outlet pipe 6. Two air inlet pipes 2 are installed on the upper end of the main unit 1, and the air inlet pipe 2 and the detection mechanism 3 are interconnected. An adjustment mechanism 4 is also installed in the main unit 1. The detection mechanism 3 comprises a detection box 301, a laser emitter 302 and a photoelectric receiver 303. The detection box 301 is interconnected with the air inlet pipe 2, and the detection box 301 is interconnected with the fan 5 through a conduit. The fan 5 is connected to the air outlet pipe 6. A laser emitter 302 is installed in the detection box 301, and a photoelectric receiver 303 installed in the detection box 301 is arranged opposite to the laser emitter 302. The adjustment mechanism 4 comprises a motor 401, a disc 402, a convex shaft 403, a movable frame 404, a movable frame 405 and a sealing baffle 406. The motor 401 is fixed in the main unit 1, and the motor 40 1 is fixed with a disc 402 at the output end, and a convex shaft 403 is fixed on the disc 402. The convex shaft 403 and the movable frame 404 are slidably connected. A movable frame 405 is symmetrically fixed on the movable frame 404. The movable frame 405 and the detection box 301 are slidably connected. An air outlet pipe 6 is fixed on the movable frame 405, and the air outlet pipe 6 cooperates with the air inlet and air outlet on the detection box 301 to achieve a sealing effect. Through the action of the fan 5, the conduit and the air inlet pipe 2, the outside air enters the detection box 301, and smoke detection can be achieved by cooperating with the laser transmitter 302 and the photoelectric receiver 303. In addition, the action of the motor 401, the disc 402, the convex shaft 403, the movable frame 404, the movable frame 405 and the sealing baffle 406 is used to allow the outside air to alternately enter the detection box 301, thereby achieving alternate detection. During the detection process, the air flow in the detection box 301 is avoided to ensure the accuracy of the detection.

[0028] A warning light 101 is installed on the upper end surface of the host 1, and a buzzer 102 is installed on the host 1, and the warning light 101 and the buzzer 102 are electrically connected to the controller;

[0029] When using the intelligent fire-fighting sampling smoke detection device, if Figure 1-Figure 7 As shown, the sampling tubes distributed at equal intervals on the roof are connected to the air inlet pipe 2. During the operation of the device, the outside air can enter the detection box 301 through the action of the fan 5, the air inlet pipe 2 and the sampling tube, as shown in FIG. Figure 3As shown, at this time, air enters the right detection box 301 and is discharged through the air outlet pipe 6, and the motor 401 is started synchronously at this time, synchronously driving the disc 402 and the cam shaft 403 to rotate. When the cam shaft 403 moves from the left end to the right end, the movable frame 404, the movable frame 405 and the sealing baffle 406 move to the right synchronously. At this time, the right sealing baffle 406 closes the air inlet and air outlet of the right detection box 301, and the left sealing baffle 406 is separated from the air inlet and air outlet of the left detection box 301, and the seal is released. At this time, the outside air enters the left detection box 301. When the air inlet and air outlet of the right detection box 301 are sealed, the outside air enters the left detection box 301 through the exciting The light emitter 302 and the photoelectric receiver 303 can realize detection. The presence of smoke in the air can be determined by the strength of the light signal received by the photoelectric receiver 303, and the relevant data can be fed back to the controller, thereby realizing the smoke detection function. According to the above principle, continuous detection can be realized by alternately detecting the sealing of the left and right detection boxes 301. The sealing detection can reduce the impact of gas flow on the detection data, thereby ensuring the accuracy of the detection data. When smoke is detected, the controller controls the warning light 101 and the buzzer 102 to start, thereby realizing the sound and light alarm function, so as to promptly remind the staff;

[0030] The host 1 is equipped with an oxygen generator 7, which is connected to an oxygen storage mechanism 8, and the oxygen storage mechanism 8 is installed on the outside of the host 1; the rotation radius of the convex shaft 403 is equal to the inner width of the movable frame 404, and the inner height of the movable frame 404 is greater than the rotation diameter of the convex shaft 403; the oxygen generator 7 includes a reaction box 701, a storage bottle 702, an electric control valve 703, a rotating shaft 704, a stirring rod 705, a gear 706, a convex gear rod 707 and a water box 708, the reaction box 701 Fixed in the host 1, and two storage bottles 702 are fixed on the reaction box 701, and the lower ends of the two storage bottles 702 are installed with electric control valves 703, and one storage bottle 702 stores hydrogen peroxide, and the other storage bottle 702 stores manganese dioxide; the reaction box 701 is connected to a rotating shaft 704 with a bearing, and a stirring rod 705 is evenly fixed on the rotating shaft 704, and a gear 706 is also fixed on the rotating shaft 704, and the gear 706 is arranged above the reaction box 701; 706 and the convex gear rod 707 are meshed, and the convex gear rod 707 and the detection mechanism 3 are slidably connected, and the convex gear rod 707 and the sealing baffle 406 are fixedly connected; the reaction box 701 is connected to the air inlet one-way valve installed on the water box 708 through a conduit, and the water box 708 is fixed in the host 1; the oxygen storage mechanism 8 includes an elastic bag 801, a first magnet 802, a second magnet 803, a threaded joint 804, a control valve 805, a mask 806 and a cover plate 80 7. A first magnet 802 is fixed to the elastic bag 801, and a magnetic attraction structure is formed between the first magnet 802 and the second magnet 803. The second magnet 803 is fixed to the main unit 1. A threaded joint 804 is installed on the upper end of the elastic bag 801. The threaded joint 804 is interconnected with the air outlet one-way valve installed on the water box 708 through a conduit and an air inlet one-way valve. The elastic bag 801 is interconnected with the mask 806 through the control valve 805, and the mask 806 is nested with a cover plate 807.

[0031] During use of the device, if Figure 1-Figure 7As shown, when smoke is detected, that is, a certain amount of harmful gas is contained in the detection space, if there are staff in the detection space at this time, they will inhale the smoke and harmful gas, which will affect their normal escape. When the device detects smoke, the controller can control the electric control valve 703 to open, so that the hydrogen peroxide and manganese dioxide stored in the two storage bottles 702 respectively enter the reaction box 701 synchronously to react and produce oxygen. The oxygen enters the water box 708 through the air inlet one-way valve on the water box 708. The water in the water box 708 can absorb the tiny hydrogen peroxide droplets contained in the oxygen. The filtered oxygen enters the elastic bag 801 through the conduit and the threaded joint 804 and is stored. At this time, since the motor 401 drives the disc 402 and the convex shaft 403 to rotate, the movable frame 405 moves, thereby synchronously driving the convex gear rod. 707 moves, and the meshing transmission between the convex gear rod 707 and the gear 706 causes the rotating shaft 704 and the stirring rod 705 to rotate. The stirring rod 705 stirs the hydrogen peroxide and manganese dioxide, which can greatly increase the reaction rate, thereby ensuring the oxygen production speed. At this time, the trapped person only needs to separate the threaded joint 804 from the catheter. Due to the function of the one-way valve in the threaded joint 804, oxygen overflow can be avoided. The first magnet 802 and the second magnet 803 are separated to realize the disassembly of the elastic bag 801, and then the cover 807 is removed, and the mask 806 is fitted to the face. Finally, by opening the control valve 805, the oxygen stored in the elastic bag 801 can be allowed to enter the mask 806 for the trapped person to breathe, thereby greatly increasing the escape probability of the trapped person. This is the working principle of the sampling smoke detection device for intelligent fire fighting.

[0032] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A sampling smoke detection device for intelligent firefighting, comprising a main unit (1), an air inlet pipe (2), a detection mechanism (3), a fan (5) and an air outlet pipe (6), wherein two air inlet pipes (2) are mounted on the upper end of the main unit (1), and the air inlet pipes (2) and the detection mechanism (3) are connected to each other, and characterized in that: The host (1) is further provided with an adjusting mechanism (4). The detecting mechanism (3) comprises a detecting box (301), a laser emitter (302) and a photoelectric receiver (303). The detecting box (301) is connected to the air inlet pipe (2). The detecting box (301) is connected to the fan (5) via a conduit. The fan (5) is connected to the air outlet pipe (6). The detecting box (301) is provided with a laser emitter (302). Opposite to the laser emitter (302), a photoelectric receiver (303) installed in the detecting box (301) is provided. The adjusting mechanism (4) comprises a motor (401), a disc (402), a convex shaft (403) and a convex shaft (403). ), a movable frame (404), a movable rack (405) and a sealing baffle (406), the motor (401) is fixed in the host (1), a disc (402) is fixed to the output end of the motor (401), a convex shaft (403) is fixed on the disc (402), a sliding connection is formed between the convex shaft (403) and the movable frame (404), a movable rack (405) is fixed on the movable frame (404) in a left-right symmetrical manner, a sliding connection is formed between the movable rack (405) and the detection box (301), an air outlet pipe (6) is fixed on the movable rack (405), and the air outlet pipe (6) cooperates with the air inlet and the air outlet on the detection box (301) to achieve a sealing effect.

2. The intelligent firefighting smoke sampling detection device according to claim 1, characterized in that: A warning light (101) is installed on the upper end surface of the host (1), and a buzzer (102) is installed on the host (1), and the warning light (101) and the buzzer (102) are electrically connected to the controller.

3. The intelligent firefighting smoke sampling detection device according to claim 1, characterized in that: An oxygen production mechanism (7) is installed in the main unit (1), and the oxygen production mechanism (7) and the oxygen storage mechanism (8) are connected to each other, and the oxygen storage mechanism (8) is installed outside the main unit (1).

4. The intelligent firefighting smoke sampling detection device according to claim 1, characterized in that: The rotation radius of the convex shaft (403) is equal to the inner width of the movable frame (404), and the inner height of the movable frame (404) is greater than the rotation diameter of the convex shaft (403).

5. The intelligent smoke sampling detection device for firefighting according to claim 3, characterized in that: The oxygen production mechanism (7) comprises a reaction box (701), a storage bottle (702), an electric control valve (703), a rotating shaft (704), a stirring rod (705), a gear (706), a convex gear rod (707) and a water box (708). The reaction box (701) is fixed in the main unit (1), and two storage bottles (702) are fixed on the reaction box (701). The lower ends of the two storage bottles (702) are equipped with an electric control valve (703). At the same time, one storage bottle (702) stores hydrogen peroxide, and the other storage bottle (702) stores manganese dioxide.

6. The intelligent smoke sampling detection device for firefighting according to claim 5, characterized in that: The reaction box (701) is connected to a rotating shaft (704) via a bearing, and a stirring rod (705) is evenly fixed on the rotating shaft (704). A gear (706) is also fixed on the rotating shaft (704), and the gear (706) is arranged above the reaction box (701).

7. The intelligent smoke sampling detection device for firefighting according to claim 5, characterized in that: The gear (706) and the convex gear rod (707) are in meshing connection, the convex gear rod (707) and the detection mechanism (3) are in sliding connection, and the convex gear rod (707) and the sealing baffle (406) are in fixed connection.

8. The intelligent smoke sampling detection device for firefighting according to claim 5, characterized in that: The reaction box (701) is connected to an air inlet one-way valve installed on a water box (708) through a conduit, and the water box (708) is fixed in the main unit (1).

9. The intelligent smoke sampling detection device for firefighting according to claim 3, characterized in that: The oxygen storage mechanism (8) comprises an elastic bag (801), a first magnet (802), a second magnet (803), a threaded joint (804), a control valve (805), a mask (806) and a cover plate (807); the first magnet (802) is fixed on the elastic bag (801), and a magnetic attraction structure is formed between the first magnet (802) and the second magnet (803); the second magnet (803) is fixed on the main unit (1); a threaded joint (804) is installed on the upper end of the elastic bag (801), and the threaded joint (804) is connected to the outlet one-way valve installed on the water box (708) through a conduit and an air inlet one-way valve.

10. The intelligent smoke sampling detection device for firefighting according to claim 9, characterized in that: The elastic bag (801) is connected to the mask (806) via a control valve (805), and a cover plate (807) is nested and installed on the mask (806).

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