Smoke penetration performance detection device for fire-fighting sign lamp

Abstract

The utility model discloses a smog penetration performance detection device for a fire-fighting sign lamp, which belongs to the technical field of fire-fighting detection equipment and comprises a fire-fighting sign lamp mounted on a wall surface of an emergency exit of a building, and an arc-shaped frame is mounted on the periphery of the fire-fighting sign lamp. A plurality of symmetrical through holes are formed in the left side and the right side of a frame of the arc-shaped frame body, screws penetrate through the through holes, the lower ends of the screws abut against the fire sign lamp shell through pressing plates, and the upper ends of the screws are limited through nuts. A mounting groove is formed in the middle of the front side face of the arc-shaped frame body, a transparent detection cover is outwards mounted on the mounting groove, and a plurality of surrounding concave connecting rods are arranged on the periphery of the transparent detection cover at intervals. The smog penetration performance detection device can better simulate a smog environment, detect the smog penetration performance of the fire-fighting sign lamp from all directions, and can quickly recover smog after detection is finished, so that the detection efficiency is improved, and the pollution to the corridor environment is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of fire detection equipment, and more specifically, to a detection device for the smoke penetration performance of fire sign lamps. Background Art

[0002] Fire sign lamps are installed near the evacuation passages of buildings. In case of a fire, they provide indication and lighting for personnel evacuation, escape, and fire fighting operations. Before leaving the factory, they need to go through strict inspection procedures before they can be put into use. After being used for a period of time, the equipment components of fire sign lamps may age and their performance may decline. At this time, inspectors need to regularly detect the smoke penetration performance of fire sign lamps to ensure the reliability of their use performance. Currently, in China, the illuminance (Lux) value is usually used as an indicator to evaluate the optical performance of fire sign lamps.

[0003] In the existing detection work, most inspectors rely on experience to observe and judge the quality of the smoke penetration performance of fire sign lamps. The equipment is difficult to simulate the concentration of the smoke environment well and measure the actual illuminance parameters of the fire sign lamps after penetrating the smoke, resulting in low detection quality and difficulty in ensuring the safe use of fire sign lamps, and there are potential safety hazards. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a detection device for the smoke penetration performance of fire sign lamps. This detection device for the smoke penetration performance can better simulate the smoke environment, detect the smoke penetration performance of fire sign lamps from all directions. After the detection is completed, the smoke can be quickly recovered, improving the detection efficiency and reducing the pollution to the corridor environment at the same time.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0006] A detection device for the smoke penetration performance of fire sign lamps, including a fire sign lamp installed on the wall of the safety exit of a building. An arc-shaped frame is installed around the fire sign lamp. Symmetrically arranged through holes are opened on the left and right sides of the arc-shaped frame border, and screws pass through the through holes. The lower end of the screw is pressed against the outer shell of the fire sign lamp through a pressing plate, and the upper end of the screw is limited by a nut. An installation groove is opened at the middle position of the front side of the arc-shaped frame, and a transparent detection cover is installed outward on the installation groove. A number of surrounding concave connecting rods are arranged at intervals around the transparent detection cover. The inner ends of the concave connecting rods are connected to the outer side of the arc-shaped frame through fixed seats. A number of illuminance meter probes are arranged at intervals on the inner side of the rod body of the concave connecting rods. A sealing ring distributed along the frame edge is arranged on the rear side of the arc-shaped frame, and the sealing ring is attached to the wall surface.

[0007] As a further optimization of this solution, a smoke concentration detector is installed on the top surface of the transparent detection cover. An inlet smoke slot with several air outlet holes is installed on the bottom surface of the transparent detection cover. The lower end of the inlet smoke slot is connected to an inlet smoke hose. One end of the outer side surface of the transparent detection cover is connected to an air extraction hose. The lower end of the air extraction hose is connected to an air extraction motor. The several illuminance meter probes are all connected in series to the wiring board of the control chassis through wires.

[0008] As a further optimization of this solution, the air outlet end of the air extraction motor is externally connected to an exhaust gas collection cylinder. An electric control switch valve is provided on the pipeline of the air extraction hose. The lower end of the inlet smoke hose is connected to a smoke generator.

[0009] As a further optimization of this solution, the control chassis, the air extraction motor, the exhaust gas collection cylinder, and the smoke generator are all arranged on the upper surface of the push plate. Travel wheels are provided on the outer sides of the four weeks of the push plate. A push-pull handle is provided at one end of the push plate. The control chassis is internally provided with a power supply and is connected to the air extraction motor, the smoke generator, the electric control switch valve, and the smoke concentration detector through wires.

[0010] As a further optimization of this solution, the cross-sectional shape of the transparent detection cover is the same as that of the arc-shaped frame body, and the length of the transparent detection cover is 15 - 20 centimeters.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] In the present utility model, by setting the push plate and the arc-shaped frame body structure, it is convenient to move and install multiple devices of the detection device. Cooperating with the air extraction hose and the air extraction motor structure, after the detection, the smoke can be quickly recovered, and then the detection work on the next floor of the building can be carried out. The detection efficiency is relatively high, and the pollution to the corridor environment is reduced.

[0013] In the present utility model, by setting the concave connecting rod and arranging several illuminance meter probes at different positions around the transparent detection cover, the detection range is wider, and multiple groups of illuminance value data at different angles and regions can be obtained, which is convenient for the detection personnel to comprehensively evaluate the smoke penetration performance of the fire-fighting sign lamps.

[0014] In the present utility model, by setting structures such as the transparent detection cover, the inlet smoke slot, and the smoke generator, and cooperating with the smoke concentration detector, a smoke environment with different concentrations can be better simulated around the fire-fighting sign lamps, improving the reliability of the subsequent detection data. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the detection device of the present utility model (removing part of the outer shell of the transparent detection cover);

[0016] Figure 2Schematic diagram of the upper structure of the arc-shaped frame of the present utility model (removing part of the transparent detection cover shell);

[0017] Figure 3 Schematic diagram of the lower structure of the arc-shaped frame of the present utility model (removing part of the transparent detection cover shell);

[0018] In the figure: 1. Push plate; 2. Control chassis; 3. Smoke generator; 4. Smoke inlet hose; 5. Exhaust fan motor; 6. Exhaust hose; 7. Exhaust gas collection cylinder; 8. Circuit; 9. Arc-shaped frame; 10. Transparent detection cover; 11. Screw; 12. Pressure plate; 13. Concave connecting rod; 14. Illuminance meter probe; 15. Smoke inlet slot; 16. Smoke concentration detector; 17. Fire sign lamp. Detailed implementation mode

[0019] In order to make the technical means, creative features, achieved purposes and effects realized by the utility model easy to understand, the present utility model will be further described below with reference to specific drawings.

[0020] In order to solve the problem that existing equipment is difficult to simulate the concentration of the smoke environment well and measure the actual illuminance parameters of the fire sign lamp after penetrating the smoke, resulting in low detection quality, difficult to ensure the safe use of the fire sign lamp and there are potential safety hazards, as Figure 2 shown, this application includes a fire sign lamp 17 installed on the wall of the safety exit of a building. An arc-shaped frame 9 is installed outside the fire sign lamp 17. A plurality of symmetric through holes are opened on the left and right sides of the frame of the arc-shaped frame 9, and screws 11 pass through the inside of the through holes. The lower end of the screw 11 is pressed against the shell of the fire sign lamp 17 through a pressure plate 12, and the upper end of the screw 11 is limited by a nut. An installation groove is opened at the middle position of the front side of the arc-shaped frame 9, and a transparent detection cover 10 is installed outward on the installation groove. A plurality of surrounding concave connecting rods 13 are arranged at intervals outside the transparent detection cover 10. The inner ends of the concave connecting rods 13 are connected to the outer side of the arc-shaped frame 9 through fixing seats. A plurality of illuminance meter probes 14 are arranged at intervals on the inner side of the rod body of the concave connecting rod 13. A sealing ring is arranged on the rear side of the arc-shaped frame 9 along the edge of the frame, and the sealing ring fits with the wall;

[0021] As Figure 3 shown, a smoke concentration detector 16 is installed on the top surface of the transparent detection cover 10, a smoke inlet slot 15 with a plurality of air outlet holes is installed on the bottom surface of the transparent detection cover 10, the lower end of the smoke inlet slot 15 is communicated with a smoke inlet hose 4, one end of the outer side of the transparent detection cover 10 is communicated with an exhaust hose 6, the lower end of the exhaust hose 6 is communicated with an exhaust fan motor 5, and a plurality of illuminance meter probes 14 are all connected in series to the wiring board of the control chassis 2 through a circuit 8;

[0022] As Figure 1As shown in the figure, the air outlet end of the air extraction motor 5 is externally connected to the waste gas collection cylinder 7. An electric control switch valve is provided on the pipeline of the air extraction hose 6. The lower end of the smoke inlet hose 4 is connected to the smoke generator 3. The control chassis 2, the air extraction motor 5, the waste gas collection cylinder 7 and the smoke generator 3 are all arranged on the upper surface of the push plate 1. Travel wheels are provided on the outer sides of the four peripheries of the push plate 1. A push-pull handle is provided at one end of the push plate 1. The control chassis 2 is internally provided with a power supply and is connected to the air extraction motor 5, the smoke generator 3, the electric control switch valve and the smoke concentration detector 16 through a circuit 8.

[0023] Specifically, the tester pushes the push plate 1 to move to the position below the fire safety sign lamp 17 to be tested through the push-pull handle. If the installation height of the fire safety sign lamp 17 is relatively high, an arc-shaped frame 9 is installed around the fire safety sign lamp 17 through tools such as a ladder and fixed through a screw 11. At this time, the inner side of the fire safety sign lamp 17 is sealed with the wall through a sealing ring, and the outside is closed through a transparent detection cover 10. The tester turns off other lamps and starts the fire safety sign lamp 17, starts the smoke generator 3 to work through the control chassis 2, and transmits the smoke into the transparent detection cover 10 through the smoke inlet hose 4. When the inside of the transparent detection cover 10 is filled with smoke, the smoke concentration is detected by the smoke concentration detector 16 above and the parameters are recorded. Then, the illuminance values at each position are detected by the illuminance meter probes 14 at several different positions on the periphery of the transparent detection cover 10 and recorded. The data is transmitted to the control chassis 2 through the circuit. Different sets of data can be recorded by adjusting different smoke concentrations through the working intensity of the smoke generator 3. The tester uses the data of the illuminance values in different regions under different smoke concentrations to comprehensively evaluate the smoke penetration performance of the fire safety sign lamp 17. After the detection work is completed, the air extraction motor 5 can be started through the control chassis 2, and the electric control switch valve is opened, and the smoke inside the transparent detection cover 10 is quickly extracted into the waste gas collection cylinder 7 through the air extraction hose 6 for collection.

[0024] All the standard parts used in the present utility model can be purchased from the market. The special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets and welding that are mature in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be elaborated here.

[0025] The foregoing has shown and described the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only used to illustrate the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and all these changes and improvements fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A smoke penetration performance detection device for fire sign lamps, including a fire sign lamp installed on the wall of the safety exit of a building, characterized in that: An arc-shaped frame is installed around the fire sign lamp. A number of symmetric through holes are provided on the left and right sides of the border of the arc-shaped frame, and screws pass through the interiors of the through holes. The lower ends of the screws are pressed tightly against the outer shell of the fire sign lamp by pressing plates, and the upper ends of the screws are limited by nuts. An installation groove is provided at the middle position of the front side of the arc-shaped frame, and a transparent detection cover is installed outward on the installation groove. A number of surrounding concave connecting rods are arranged at intervals around the transparent detection cover. The inner ends of the concave connecting rods are connected to the outer side surface of the arc-shaped frame through fixing seats. A number of illuminance meter probes are arranged at intervals on the inner side of the rod body of the concave connecting rod. A sealing ring distributed along the frame edge is provided on the rear side surface of the arc-shaped frame, and the sealing ring fits against the wall surface.

2. The smoke penetration performance detection device for a fire-fighting sign lamp according to claim 1, characterized in that: A smoke concentration detector is installed on the top surface of the transparent detection cover. A smoke inlet groove with a number of air outlet holes is installed on the bottom surface of the transparent detection cover. The lower end of the smoke inlet groove communicates with a smoke inlet hose. One end of the outer side surface of the transparent detection cover communicates with an air extraction hose, and the lower end of the air extraction hose communicates with an air extraction motor. The a number of illuminance meter probes are all connected in series to the wiring board of the control chassis through wires.

3. The smoke penetration performance detection device for a fire-fighting sign lamp according to claim 2, characterized in that: The air outlet end of the air extraction motor is externally connected to an exhaust gas collection cylinder. An electric control switch valve is provided on the pipeline of the air extraction hose. The lower end of the smoke inlet hose communicates with a smoke generator.

4. The smoke penetration performance detection device for a fire-fighting sign lamp according to claim 3, characterized in that: The control chassis, the air extraction motor, the exhaust gas collection cylinder and the smoke generator are all arranged on the upper surface of a push plate. Travel wheels are provided on the outer sides of the four perimeters of the push plate. A push-pull handle is provided at one end of the push plate. The control chassis is internally provided with a power supply and is connected to the air extraction motor, the smoke generator, the electric control switch valve and the smoke concentration detector through wires.

5. A smoke penetration performance detection device for a fire-fighting sign lamp according to claim 4, characterized in that: The cross-sectional shape of the transparent detection cover is the same as that of the arc-shaped frame, and the length of the transparent detection cover is 15-20 cm.

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