High-precision laser opto-acoustic transient smoke intensity sensing detection mechanism

Abstract

The utility model discloses a high-precision laser opto-acoustic transient smoke intensity sensing and detecting mechanism which comprises a smoke intensity sensing and detecting mechanism body and an upper connecting mounting column arranged on the smoke intensity sensing and detecting mechanism body, a connecting through pipe is arranged on the side face of an upper connecting mounting column, a built-in connecting threaded column is arranged on the side face of a built-in moving plate, a second rotating adjusting knob rotates to drive the built-in connecting threaded column to move leftwards or rightwards through the thread effect, and the built-in telescopic connecting body can be stretched and compressed through movement of the second rotating adjusting knob; the air in the built-in telescopic connector can be extruded into the inner side connecting rubber air bag ring to expand the inner side connecting rubber air bag ring, otherwise, the inner side connecting rubber air bag ring is concave inwards; according to the improvement of the utility model, corresponding adjustment can be carried out according to an actually connected ventilation pipeline, so that the rubber air bag ring connected at the inner side expands and extrudes the connection part to realize tight connection, and the use safety stability and the use practicability of the high-precision laser photoacoustic transient smoke intensity sensing and detecting mechanism are further improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the related technical field of fire fighting, specifically relates to a high-precision laser photoacoustic transient smoke rate sensing detection mechanism. BACKGROUND

[0002] Air sampling type smoke fire detection alarm is also called early smoke detector, which adopts active sampling detection mode, advanced laser detection technology and powerful system application software, and has a qualitative leap compared with traditional fire detection alarm technology.

[0003] The detector is composed of an air pump, a filter, a laser cavity and a control circuit. The air pump extracts air from the protected area as a sample through the sampling pipe network composed of PVC pipe or steel pipe and sends it into the laser cavity. In the laser cavity, the scattered light caused by smoke particles is received by the array receiver, and the receiver converts the light signal into an electrical signal and sends it to the control circuit of the detector. After processing, the signal is converted into smoke concentration and the set alarm threshold, and an appropriate output signal is generated. Thus, various levels of alarms are issued in turn, namely warning, action, fire alarm level 1 and fire alarm level 2.

[0004] However, the high-precision laser photoacoustic transient smoke rate sensing detection mechanism connecting pipe is usually connected with the device by screwing or direct insertion. This connection method is prone to gap leakage after multiple disassembly and installation, which affects the monitoring accuracy of the device and causes safety problems.

[0005] The utility model improves the above problems, and specifically relates to a high-precision laser photoacoustic transient smoke rate sensing detection mechanism capable of assisting in tightly connecting the pipe. CONTENT OF THE UTILITY MODEL

[0006] The utility model aims to provide a high-precision laser photoacoustic transient smoke rate sensing detection mechanism to solve the problem that the high-precision laser photoacoustic transient smoke rate sensing detection mechanism connecting pipe is usually connected with the device by screwing or direct insertion. This connection method is prone to gap leakage after multiple disassembly and installation, which affects the monitoring accuracy of the device and causes safety problems.

[0007] To achieve the above purpose, the utility model provides the following technical scheme: a high-precision laser photoacoustic transient smoke rate sensing detection mechanism, which comprises a smoke rate sensing detection mechanism body and an upper connecting mounting column arranged at the upper side of the smoke rate sensing detection mechanism body.

[0008] The inner side of the upper connecting mounting column is provided with an inner side connecting rubber air bag ring, the side of the upper connecting mounting column is provided with a connecting through pipe, the connecting through pipe is provided with a rotating adjusting knob one, the bottom of the rotating adjusting knob one is provided with an inner built-in ball valve, the middle of the inner built-in ball valve is provided with a vent hole, the end of the connecting through pipe is provided with an upper connecting box body, the inner side of the upper connecting box body is provided with an inner built-in telescopic connecting body, the side of the inner built-in telescopic connecting body is provided with an inner built-in moving plate, the side of the inner built-in moving plate is provided with an inner built-in connecting threaded column, the outer side of the inner built-in connecting threaded column is provided with a rotating adjusting knob two, the rotating adjusting knob two can drive the inner built-in connecting threaded column to move left or right through the threaded action, the movement can stretch and compress the inner built-in telescopic connecting body, the gas in the inner built-in telescopic connecting body can be extruded into the inner side connecting rubber air bag ring to make it expand, and vice versa.

[0009] Preferably, the bottom side of the upper connecting box body is provided with adhesive, and the upper connecting box body is connected with the smoke sensing detection mechanism body through the adhesive.

[0010] Preferably, the front side of the smoke sensing detection mechanism body is provided with a data display screen, and the surface of the data display screen is attached with a protective film.

[0011] Preferably, the side of the smoke sensing detection mechanism body is provided with a state indicating lamp, and the state indicating lamp is provided with six.

[0012] Preferably, the bottom of the state indicating lamp and the data display screen is provided with an adjusting control button, and the adjusting control button controls the smoke sensing detection mechanism body.

[0013] Preferably, the side of the smoke sensing detection mechanism body is provided with a side plug-in connecting hole, and the side plug-in connecting hole is connected with an external power supply and a receiver through plug-in connection.

[0014] Preferably, the middle of the upper connecting mounting column is provided with a vent pipe, and the vent pipe is connected with the upper connecting mounting column through plug-in connection.

[0015] Compared with the prior art, the utility model provides a high-precision laser photoacoustic transient smoke sensing detection mechanism, which has the following beneficial effects:

[0016] The inner side connecting rubber air bag ring is arranged at the inner side position of the upper connecting mounting column, the connecting through pipe is arranged at the side position of the upper connecting mounting column, the rotating adjusting knob one is arranged on the connecting through pipe, the built-in ball valve is arranged at the bottom position of the rotating adjusting knob one, the air hole is arranged at the middle position of the built-in ball valve, the upper connecting box body is arranged at the end position of the connecting through pipe, the built-in telescopic connecting body is arranged at the inner position of the upper connecting box body, the built-in moving plate is arranged at the side position of the built-in telescopic connecting body, the built-in connecting threaded column is arranged at the side position of the built-in moving plate, the rotating adjusting knob two is arranged at the outer side position of the built-in connecting threaded column, and the rotating adjusting knob two can drive the built-in connecting threaded column to move left or right through the thread effect, the movement can stretch and compress the built-in telescopic connecting body, and the gas in the built-in telescopic connecting body can be extruded into the inner side connecting rubber air bag ring to make it expand, and vice versa. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a whole structure schematic diagram of the high-precision laser photoacoustic transient smoke sensing detection mechanism of the utility model.

[0018] Figure 2 It is an enlarged structure schematic diagram of the high-precision laser photoacoustic transient smoke sensing detection mechanism serial number A position of the utility model.

[0019] Figure 3 It is a cross section structure schematic diagram of the high-precision laser photoacoustic transient smoke sensing detection mechanism upper connecting box body position of the utility model.

[0020] Figure 4 It is a cross section structure schematic diagram of the high-precision laser photoacoustic transient smoke sensing detection mechanism rotating adjusting knob one position of the utility model.

[0021] In the drawing: 1, smoke sensing detection mechanism body; 2, state indicating lamp; 3, data display screen; 4, adjusting control button; 5, side plug-in connecting hole; 6, upper connecting mounting column; 7, air duct; 8, upper connecting box body; 9, inner side connecting rubber air bag ring; 10, connecting through pipe; 11, rotating adjusting knob one; 12, rotating adjusting knob two; 13, built-in connecting threaded column; 14, built-in moving plate; 15, built-in telescopic connecting body; 16, built-in ball valve; 17, air hole. DETAILED DESCRIPTION

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] This utility model provides, for example Figures 1-4 As shown, a high-precision laser-optical transient smoke intensity sensing and detection mechanism includes a smoke intensity sensing and detection mechanism body 1 and an upper connecting mounting column 6 disposed on the upper side of the smoke intensity sensing and detection mechanism body 1; an inner connecting rubber airbag ring 9 is disposed on the inner side of the upper connecting mounting column 6; a connecting pipe 10 is disposed on the side of the upper connecting mounting column 6; a rotating adjustment knob 11 is disposed on the connecting pipe 10; an internal ball valve 16 is disposed at the bottom of the rotating adjustment knob 11; a vent hole 17 is disposed in the middle of the internal ball valve 16; an upper connecting box 8 is disposed at the end of the connecting pipe 10; an internal telescopic connector 15 is disposed inside the upper connecting box 8; an internal moving plate 14 is disposed on the side of the internal telescopic connector 15; the internal moving plate... An internal connecting threaded post 13 is provided on the side of the 14. A rotating adjustment knob 12 is provided on the outer side of the internal connecting threaded post 13. Rotating the adjustment knob 12 can drive the internal connecting threaded post 13 to move to the left or right through the thread action. This movement will stretch and compress the internal telescopic connector 15. The gas in the internal telescopic connector 15 can be squeezed into the inner connecting rubber airbag ring 9 to make it expand. Conversely, it will make the inner connecting rubber airbag ring 9 concave. After the improvement of this utility model, it can be adjusted according to the actual connected ventilation pipe 7 to make the inner connecting rubber airbag ring 9 expand and compress the connection, thereby making the connection tight. This improves the safety, stability and practicality of the high-precision laser photoacoustic transient smoke sensing and detection mechanism.

[0024] like Figure 1 As shown, adhesive is provided on the bottom side of the upper connecting box 8. The upper connecting box 8 is installed and connected to the smoke sensor detection mechanism 1 through adhesive. The upper connecting box 8 is designed to provide gas replacement function, and its adhesive connection is simple and quick.

[0025] like Figure 1 As shown, a data display screen 3 is provided on the front side of the smoke sensor detection mechanism 1. The surface of the data display screen 3 is covered with a protective film. The data display screen 3 can display data for users to observe and adjust settings.

[0026] like Figure 1As shown, there are six status indicator lights 2 on the side of the smoke sensor detection mechanism 1. The second one from the left indicates whether the smoke sensor detection mechanism 1 is working, and the fourth one from the right indicates the status of the four areas connected to the mounting columns 6.

[0027] like Figure 1 As shown, an adjustment control button 4 is provided at the bottom of the status indicator light 2 and the data display screen 3. The adjustment control button 4 controls the smoke sensor detection mechanism 1 and is used to set adjustment parameters and control the adjustment.

[0028] like Figure 1 As shown, a side insertion connection hole 5 is provided on the side of the smoke sensing and detection mechanism body 1. The side insertion connection hole 5 is connected to an external power supply and receiver through a connecting wire. The side insertion connection hole 5 is set to connect to an external power supply and receiver for power supply and information transmission.

[0029] like Figure 1 A ventilation pipe 7 is provided at the middle position of the upper connecting mounting column 6 shown. The ventilation pipe 7 is installed and connected to the upper connecting mounting column 6 by plugging. The ventilation pipe 7 is used to connect various areas for air extraction and air monitoring.

[0030] The smoke sensor detector 1 has an internal air pump that draws air from the protected area through the ventilation pipe 7 and sends it as a sample into the laser cavity. Inside the laser cavity, the air sample is irradiated with a laser. The scattered light caused by the smoke particles is received by an array receiver. The receiver converts the light signal into an electrical signal and sends it to the detector's control circuit. After processing, the signal is converted into smoke concentration and a set alarm threshold, generating an appropriate output signal to issue an alarm.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-precision laser photoacoustic transient smoke sensing detection mechanism, comprising a smoke sensing detection mechanism body (1) and an upper connecting mounting column (6) arranged at the upper side position of the smoke sensing detection mechanism body (1). characterized in that An inner side connecting rubber air bag ring (9) is arranged at the inner side position of the upper connecting mounting column (6), a connecting through pipe (10) is arranged at the side position of the upper connecting mounting column (6), a rotating adjusting knob one (11) is arranged on the connecting through pipe (10), an inner built-in ball valve (16) is arranged at the bottom position of the rotating adjusting knob one (11), an air hole (17) is arranged at the middle position of the inner built-in ball valve (16), an upper connecting box body (8) is arranged at the end position of the connecting through pipe (10), an inner built-in telescopic connecting body (15) is arranged at the inner position of the upper connecting box body (8), an inner built-in moving plate (14) is arranged at the side position of the inner built-in telescopic connecting body (15), an inner built-in connecting threaded column (13) is arranged at the side position of the inner built-in moving plate (14), a rotating adjusting knob two (12) is arranged at the outer side position of the inner built-in connecting threaded column (13), the rotating of the rotating adjusting knob two (12) can drive the inner built-in connecting threaded column (13) to move left or right through the threaded action, the movement can stretch and compress the inner built-in telescopic connecting body (15), the gas in the inner built-in telescopic connecting body (15) can be extruded into the inner side connecting rubber air bag ring (9) to make it expand, and vice versa to make the inner side connecting rubber air bag ring (9) concave.

2. The high-precision laser photoacoustic transient smoke sensing and detecting mechanism according to claim 1, characterized in that: A sticky glue is arranged at the bottom side position of the upper connecting box body (8), and the upper connecting box body (8) is mounted and connected with the smoke sensing detection mechanism body (1) through the sticky glue.

3. The high-precision laser photoacoustic transient smoke sensing and detecting mechanism according to claim 1, characterized in that: A data display screen (3) is arranged at the front side position of the smoke sensing detection mechanism body (1), and a protective film is attached to the surface of the data display screen (3).

4. The high-precision laser photoacoustic transient smoke sensing and detecting mechanism according to claim 3, characterized in that: State indicating lamps (2) are arranged at the side positions of the smoke sensing detection mechanism body (1), and there are six state indicating lamps (2) in total.

5. The high-precision laser photoacoustic transient smoke sensing and detecting mechanism according to claim 4, characterized in that: Adjusting control buttons (4) are arranged at the bottom positions of the state indicating lamps (2) and the data display screen (3), and the adjusting control buttons (4) control the smoke sensing detection mechanism body (1).

6. The high-precision laser photoacoustic transient smoke sensing and detecting mechanism according to claim 1, characterized in that: Side plug-in connecting holes (5) are arranged at the side positions of the smoke sensing detection mechanism body (1), and the side plug-in connecting holes (5) are connected with external power supply and receivers through plug-in connection by connecting lines.

7. The high-precision laser photoacoustic transient smoke sensing and detecting mechanism according to claim 1, characterized in that: An air pipe (7) is arranged at the middle position of the upper connecting mounting column (6), and the air pipe (7) is mounted and connected with the upper connecting mounting column (6) through plug-in connection.

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