Air suction pipe type electrical fire monitoring detector

Abstract

The utility model discloses an air suction pipe type electrical fire monitoring detector which comprises a lower installation bottom shell, the bottom of the lower installation bottom shell is provided with a lower connection dismounting structure, the center of the inner bottom of the lower installation bottom shell is provided with a threading hole, the lower installation bottom shell is internally and detachably provided with a PCB component, and the PCB component is provided with an air suction pipe. The top of the lower installation bottom shell is detachably connected with an upper sealing cover through installation screws, the bottom of the upper sealing cover is provided with four sets of abutting limiting pieces making contact with the PCB component, the center of the upper sealing cover is provided with an air suction assembly, and the upper sealing cover is provided with an alarm. The whole detector is designed to be rapidly disassembled and assembled, disassembly and maintenance of the detector are more convenient, real-time monitoring of an electrical fire is achieved by adopting a detection mode of gas particle concentration information, and safety and timeliness are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fire detectors, in particular to an air suction pipe type electrical fire monitoring detector. Background Art

[0002] Electrical fire monitoring detectors are detectors that detect changes in electrical fire hazard parameters such as residual current and temperature in protected lines. They are suitable for use in factories, large warehouses, offices, commercial buildings, hotels, residences, entertainment venues and other places with complex circuits where electrical fires are most likely to occur. The main cause of electrical fires is electrical short circuits, including phase-to-phase short circuits and single-phase ground short circuits.

[0003] In actual use, the existing fire monitoring detectors will only sound an alarm when the fire smoke spreads to the fire monitoring detector, resulting in untimely detection and certain disadvantages. In addition, the existing commonly used electrical fire monitoring detectors usually have mounting holes on the surface of the detector body, and are installed in the corresponding mounting holes with accessories such as fixing screws. Although this installation method is simple, it is not convenient for the electrical fire monitoring detector to be dismantled later, and it also increases the difficulty of the maintenance work of the maintenance personnel in the later stage.

[0004] Currently, no effective solution has been proposed for the problems in the related technologies. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model aims to provide an air intake pipe type electrical fire monitoring detector.

[0006] In order to achieve the above-mentioned purpose, the utility model is realized through the following technical scheme: an air intake pipe type electrical fire monitoring detector, comprising a lower mounting bottom shell, a lower connection and disassembly structure is arranged at the bottom of the lower mounting bottom shell, a threading hole is installed at the center of the inner bottom of the lower mounting bottom shell, a PCB board component is detachably installed in the lower mounting bottom shell, an upper sealing cover is detachably connected to the top of the lower mounting bottom shell by mounting screws, four groups of interference limiters in contact with the PCB board component are arranged at the bottom of the upper sealing cover, an air intake component is arranged at the center of the upper sealing cover, and an alarm is installed on the upper sealing cover.

[0007] Preferably, the PCB board component includes a PCB board body, an outer square mounting frame is provided outside the PCB board body, and an elastic limiting piece is provided at the connection between the outer square mounting frame and the PCB board body, the outer wall of the outer square mounting frame is symmetrically provided with limiting slots, and the inner wall of the lower mounting bottom shell is symmetrically provided with positioning blocks matching the limiting slots.

[0008] Preferably, a laser particle size sensor is provided on the PCB board body, a chemical composition sensor is provided on one side of the laser particle size sensor, a temperature sensor, an algorithm chip and a power module are provided on the PCB board body, and the laser particle size sensor, the chemical composition sensor, the temperature sensor, the algorithm chip and the power module are all electrically connected.

[0009] Preferably, the lower connecting and disassembly structure includes two positioning transverse plates, both ends of the positioning transverse plates are integrally connected with side positioning plates, the outer sides of the positioning transverse plates are integrally connected with L-shaped limiting plates, elastic limiting gaskets are provided on the inner walls of the side positioning plates and the L-shaped limiting plates, the bottoms of the positioning transverse plates and the L-shaped limiting plates are connected to mounting base plates, and mounting holes are provided on the mounting base plates.

[0010] Preferably, the interference limiter comprises a fixed sleeve fixedly mounted on the bottom of the upper sealing cover, the inner top of the fixed sleeve is connected to a positioning spring, the bottom end of the positioning spring is connected to a interference support column, and the fixed sleeve is movably mounted outside the interference support column.

[0011] Preferably, the air intake assembly includes an outer shell, which is installed through the center of the upper sealing cover, and an electric motor is fixedly installed in the outer shell through a mounting member, the electric motor is connected to an external power supply, and an output end of the electric motor is connected to a spiral blade.

[0012] Preferably, an air inlet is provided at the top of the outer shell, and a protective net is installed on the air inlet, an air outlet is provided at the bottom of the outer shell, a limiting ring is provided on the outer wall of the outer shell, and a plurality of honeycomb holes are symmetrically provided on the upper sealing cover.

[0013] The utility model provides an air suction pipe type electrical fire monitoring detector, which has the following beneficial effects:

[0014] By arranging a lower connection and disassembly structure at the bottom of the lower installation bottom shell, the installation and disassembly work of the lower installation bottom shell is realized, and there is no need to directly fix the lower installation bottom shell by screws. The PCB board component arranged in the lower installation bottom shell is positioned and clamped therein, so that the PCB board component and the lower installation bottom shell can also be quickly disassembled and assembled. The arranged upper sealing cover is connected to the lower installation bottom shell by mounting screws. When connected, the PCB board component is fixed in the lower installation bottom shell by the action of the resistance limiter, and the PCB board component cooperates with the air intake component to realize the detection of PM2.5 particle concentration information, PM2.5 particle concentration information, and PM2.5 particle concentration, so as to achieve the effect of monitoring fire, and alarm through the alarm. The utility model has a simple structure and an overall fast disassembly and assembly structure design, which is more convenient for the disassembly and maintenance of the detector. The real-time monitoring of electrical fires is realized by adopting the detection method of gas particle concentration information, thereby improving safety and timeliness. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a front view of an air intake pipe type electrical fire monitoring detector according to an embodiment of the utility model;

[0017] Figure 2 It is a structural schematic diagram of a PCB board component 4 in an air intake pipe type electrical fire monitoring detector according to an embodiment of the utility model;

[0018] Figure 3 It is a structural schematic diagram of a lower connection and disassembly structure of an air intake pipe type electrical fire monitoring detector according to an embodiment of the utility model;

[0019] Figure 4 It is a structural schematic diagram of a conflicting stopper in an air intake pipe type electrical fire monitoring detector according to an embodiment of the utility model;

[0020] Figure 5 The utility model is a schematic structural diagram of an air intake component in an air intake pipe type electrical fire monitoring detector according to an embodiment of the utility model.

[0021] In the figure:

[0022] 1. Lower mounting base shell; 2. Lower connection and disassembly structure; 3. Threading hole; 4. PCB board component; 5. Upper sealing cover; 6. Interference limiter; 7. Air suction component; 8. Alarm; 9. PCB board body; 10. External square mounting frame; 11. Elastic limiter; 12. Limiting card slot; 13. Positioning card block; 14. Laser particle size sensor; 15. Chemical composition sensor; 16. Temperature sensor; 17. Algorithm chip; 18. Power module; 19. Positioning horizontal plate; 20. Side positioning plate; 21. L-shaped limiter plate; 22. Elastic limiter gasket; 23. Mounting base plate; 24. Mounting hole; 25. Fixed sleeve; 26. Interference support column; 27. Positioning spring; 28. External housing; 29. ​​Electric motor; 30. Spiral blade; 31. Air inlet; 32. Air outlet. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-5 The utility model provides an air intake pipe type electrical fire monitoring detector, comprising a lower mounting bottom shell 1, wherein a lower connection and disassembly structure 2 is arranged at the bottom of the lower mounting bottom shell 1. By arranging the lower connection and disassembly structure 2 at the bottom of the lower mounting bottom shell 1, the installation and disassembly work of the lower mounting bottom shell 1 is realized, and there is no need to directly fix the lower mounting bottom shell 1 by screws. A threading hole 3 is arranged at the center of the inner bottom of the lower mounting bottom shell 1. A PCB board component 4 is detachably installed in the lower mounting bottom shell 1. An upper sealing cover 5 is detachably connected to the top of the lower mounting bottom shell 1 by mounting screws. The PCB board component 4 arranged in the lower mounting bottom shell 1 is positioned and clamped therein, so that the PCB board component 4 can be easily installed in the lower mounting bottom shell 1. The upper sealing cover 5 is connected to the lower mounting bottom shell 1 by mounting screws. Four groups of abutment limit members 6 in contact with the PCB board component 4 are arranged at the bottom of the upper sealing cover 5. An air suction component 7 is arranged at the center of the upper sealing cover 5. An alarm 8 is installed on the upper sealing cover 5. When connected, the PCB board component 4 is fixed in the lower mounting bottom shell 1 by the action of the abutment limit member 6. The PCB board component 4 cooperates with the air suction component 7 to detect the PM1.0 particle concentration information, the PM2.5 particle concentration information, and the PM10 particle concentration, so as to achieve the effect of monitoring the fire and alarm through the alarm 8.

[0025] In one embodiment, please refer to the attached manual. Figure 2As shown, the PCB board component 4 includes a PCB board body 9, an outer square mounting frame 10 is provided outside the PCB board body 9, and an elastic limit plate 11 is provided at the connection between the outer square mounting frame 10 and the PCB board body 9, the outer wall of the outer square mounting frame 10 is symmetrically provided with limit card slots 12, and the inner wall of the lower mounting bottom shell 1 is symmetrically provided with positioning blocks 13 matching the limit card slots 12, a laser particle size sensor 14 is provided on the PCB board body 9, a chemical composition sensor 15 is provided on one side of the laser particle size sensor 14, a temperature sensor 16, an algorithm chip 17 and a power module 18 are provided on the PCB board body 9, and the laser particle size sensor 14, the chemical composition sensor 15, the temperature sensor 16, the algorithm chip 17 and the power module 18 are all electrically connected. The PCB board body 9 can be installed by the outer square installation frame 10, and its positioning can be achieved by the elastic limit plate 11, while playing a protective effect. The positioning block 13 is provided to cooperate with the limit card slot 12, so that the PCB board component 4 can be stably installed in the lower installation base shell 1 without shaking. The laser particle size sensor 14 is provided for collecting PM1.0 particle concentration information, PM2.5 particle concentration information, and PM10 particle concentration information in the distribution cabinet; the chemical composition sensor 15 is used to collect the concentration information of the thermal decomposition gas and the rate of change of the concentration of the thermal decomposition gas in the distribution cabinet; the temperature sensor 16 is used to collect the temperature information and the rate of change of the temperature in the distribution cabinet; the algorithm chip 17 is used to compare the information data collected by the laser particle size sensor 14, the chemical composition sensor 15 and the temperature sensor 16 with the corresponding threshold values ​​set in advance. When the comparison result is that the information data exceeds the threshold value, it is determined that there is a fire hazard and an alarm is issued.

[0026] In one embodiment, please refer to the attached manual. Figure 3 As shown, the lower connection and disassembly structure 2 includes two positioning transverse plates 19, both ends of the positioning transverse plates 19 are integrally connected with side positioning plates 20, the outer sides of the positioning transverse plates 19 are integrally connected with L-shaped limiting plates 21, the inner walls of the side positioning plates 20 and the L-shaped limiting plates 21 are provided with elastic limiting gaskets 22, the bottoms of the positioning transverse plates 19 and the L-shaped limiting plates 21 are connected with mounting base plates 23, and mounting holes 24 are provided on the mounting base plates 23. The lower mounting bottom shell 1 is clamped in the positioning frame composed of the L-shaped limiting plates 21 and the side positioning plates 20, and is clamped and limited by the elastic limiting gaskets 22 to achieve its installation, and the provided mounting holes 24 facilitate the installation and fixation of the mounting base plate 23.

[0027] In one embodiment, please refer to the attached manual. Figure 4As shown, the interference limiting member 6 includes a fixing sleeve 25 fixedly mounted on the bottom of the upper sealing cover 5, a positioning spring 27 is connected to the inner top of the fixing sleeve 25, a conflict support column 26 is connected to the bottom end of the positioning spring 27, and the fixing sleeve 25 is movably sleeved outside the conflict support column 26. The conflict support column 26 and the fixing sleeve 25 are connected by the positioning spring 27, and when the upper sealing cover 5 is pressed down, the conflict support column 26 is caused to conflict with the PCB board component 4 to limit the position.

[0028] In one embodiment, please refer to the attached manual. Figure 1 and Figure 5 As shown, the air intake assembly 7 includes an outer shell 28, which is installed through the center of the upper sealing cover 5, and an electric motor 29 is fixedly installed in the outer shell 28 through a mounting member, and the electric motor 29 is connected to an external power supply, and the output end of the electric motor 29 is connected to a spiral blade 30, and an air inlet 31 is provided at the top of the outer shell 28, and a protective net is installed on the air inlet 31, and an air outlet 32 ​​is provided at the bottom of the outer shell 28, and a limiting ring is provided on the outer wall of the outer shell 28, and a plurality of honeycomb holes are symmetrically provided on the upper sealing cover 5. The spiral blade 30 is driven by the electric motor 29, so that air enters the lower mounting bottom shell 1 through the air outlet 32, and the protective net plays a protective role, and at the same time, the honeycomb holes facilitate the discharge of air.

[0029] In actual application, by providing a lower connecting and disassembling structure 2 at the bottom of the lower mounting bottom shell 1, the installation and disassembly of the lower mounting bottom shell 1 is realized, and there is no need to directly fix the lower mounting bottom shell 1 by screws. The PCB board component 4 arranged in the lower mounting bottom shell 1 is positioned and clamped therein, so that the PCB board component 4 and the lower mounting bottom shell 1 can also be quickly disassembled and assembled. The upper sealing cover 5 is connected to the lower mounting bottom shell 1 by mounting screws. When connected, the PCB board component 4 is fixed in the lower mounting bottom shell 1 by the action of the resistance limiter 6, and the PCB board component 4 cooperates with the air intake component 7 to realize the detection of PM1.0 particle concentration information, PM2.5 particle concentration information, and PM10 particle concentration, so as to achieve the effect of monitoring fire, and alarm through the alarm 8. The utility model has a simple structure and an overall fast disassembly and assembly structure design, which is more convenient for the disassembly and maintenance of the detector. The real-time monitoring of electrical fires is realized by adopting the detection method of gas particle concentration information, thereby improving safety and timeliness.

[0030] Although this specification is described according to implementation modes, not every implementation mode includes only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An air intake pipe type electrical fire monitoring detector, characterized in that: The invention comprises a lower mounting bottom shell (1), wherein a lower connection and disassembly structure (2) is arranged at the bottom of the lower mounting bottom shell (1), a threading hole (3) is arranged at the center of the inner bottom of the lower mounting bottom shell (1), a PCB board component (4) is detachably mounted in the lower mounting bottom shell (1), an upper sealing cover (5) is detachably connected to the top of the lower mounting bottom shell (1) via mounting screws, four groups of abutment limiters (6) in contact with the PCB board component (4) are arranged at the bottom of the upper sealing cover (5), an air suction component (7) is arranged at the center of the upper sealing cover (5), and an alarm (8) is installed on the upper sealing cover (5).

2. The air intake pipe type electrical fire monitoring detector according to claim 1, characterized in that: The PCB board component (4) comprises a PCB board body (9), an outer square mounting frame (10) is arranged outside the PCB board body (9), and an elastic limiting piece (11) is arranged at the connection between the outer square mounting frame (10) and the PCB board body (9), limiting slots (12) are symmetrically arranged on the outer wall of the outer square mounting frame (10), and positioning blocks (13) matching the limiting slots (12) are symmetrically arranged on the inner wall of the lower mounting bottom shell (1).

3. The air intake pipe type electrical fire monitoring detector according to claim 2, characterized in that: A laser particle size sensor (14) is arranged on the PCB board body (9); a chemical composition sensor (15) is arranged on one side of the laser particle size sensor (14); a temperature sensor (16), an algorithm chip (17) and a power module (18) are arranged on the PCB board body (9); the laser particle size sensor (14), the chemical composition sensor (15), the temperature sensor (16), the algorithm chip (17) and the power module (18) are all electrically connected to each other.

4. The air intake pipe type electrical fire monitoring detector according to claim 3, characterized in that: The lower connection and disassembly structure (2) comprises two positioning transverse plates (19), both ends of the positioning transverse plates (19) are integrally connected to side positioning plates (20), the outer sides of the positioning transverse plates (19) are integrally connected to L-shaped limiting plates (21), the inner walls of the side positioning plates (20) and the L-shaped limiting plates (21) are provided with elastic limiting gaskets (22), the bottoms of the positioning transverse plates (19) and the L-shaped limiting plates (21) are connected to mounting base plates (23), and mounting holes (24) are provided on the mounting base plates (23).

5. The air intake pipe type electrical fire monitoring detector according to claim 4, characterized in that: The interference limiting member (6) comprises a fixing sleeve (25) fixedly mounted on the bottom of the upper sealing cover (5), the inner top of the fixing sleeve (25) is connected to a positioning spring (27), the bottom end of the positioning spring (27) is connected to a interference supporting column (26), and the fixing sleeve (25) is movably sleeved outside the interference supporting column (26).

6. The air intake pipe type electrical fire monitoring detector according to claim 5, characterized in that: The air intake assembly (7) comprises an outer shell (28), the outer shell (28) being installed through the center of the upper sealing cover (5), an electric motor (29) being fixedly installed in the outer shell (28) via a mounting member, the electric motor (29) being connected to an external power source, and a spiral blade (30) being connected to an output end of the electric motor (29).

7. The air intake pipe type electrical fire monitoring detector according to claim 6, characterized in that: An air inlet (31) is provided at the top of the outer shell (28), and a protective net is installed on the air inlet (31); an air outlet (32) is provided at the bottom of the outer shell (28); a limiting ring is provided on the outer wall of the outer shell (28); and a plurality of honeycomb holes are symmetrically provided on the upper sealing cover (5).

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