A detection device for fire protection facility detectors

Abstract

This utility model provides a detection device for fire protection facility detectors, including a housing. A smoke exhaust drawer, which can be pulled out from the side wall, is installed inside the housing. The bottom of the smoke exhaust drawer has ventilation holes. A conical smoke collection hood, connected to the inside of the housing and positioned above the smoke exhaust drawer, is installed on the top of the housing. A smoke exhaust pipe is connected to the upper end of the smoke collection hood. Air pumps are installed on both sides of the top of the housing. A smoke extraction pipe is connected to the air pumps, and a smoke extraction hood with an opening facing the top of the smoke exhaust pipe is fixedly installed on the top of the smoke extraction pipe. A return smoke pipe, with its end leading to the bottom of the smoke collection hood inside the housing, is connected to the bottom of the air pumps. This utility model uses the smoke extraction pipe to draw back the smoke detected by the smoke sensor, returning it to the housing and then transporting it upwards through the smoke exhaust pipe to the smoke sensor for detection again. This avoids excessive smoke dispersing indoors and polluting the indoor air.

Description

Technical Field

[0001] This utility model relates to the field of fire protection facilities technology, specifically to a detection device for fire protection facility detectors. Background Technology

[0002] Fire alarm detectors are typically smoke detectors. Smoke detectors prevent fires by monitoring the concentration of smoke. They use ionization smoke sensors, which are technologically advanced, stable, and reliable sensors widely used in various fire alarm systems. When a smoke detector detects smoke, it determines that a fire has occurred, transmits a signal to the control center, and then activates the sprinkler system to extinguish the fire. If a smoke detector malfunctions, it will not be able to detect a fire, posing a significant safety hazard. Therefore, it is necessary to regularly inspect smoke detectors to ensure that they are functioning properly. The Chinese utility model patent with application number 202121143468.8, entitled "A Detection Device for Smoke Detectors in Fire Protection Facilities," adjusts the position of the smoke generating box using a rotating and driving assembly, thereby quickly adjusting the position of the smoke outlet pipe 4. This allows the top of the smoke outlet pipe 4 to be better aligned with the detector, improving detection accuracy. However, the existing technology, which discharges smoke into the smoke sensor for detection, causes a large amount of smoke to disperse indoors, making it difficult to clean and requiring a long time for the smoke to dissipate, thus affecting residents' normal lives and work. Utility Model Content

[0003] In order to overcome the problems existing in the background technology, this utility model provides a detection device for fire protection facility detectors, so as to solve the technical problem that the existing technical solution proposed in the background technology, after the smoke is discharged to the smoke sensor for detection, will cause a large amount of smoke to drift indoors, which is difficult to clean and takes a long time to dissipate, affecting the normal life and work of residents.

[0004] To achieve the above objectives, this utility model is implemented through the following technical solution: A detection device for a fire protection facility detector includes a housing 1, a smoke exhaust drawer 2 that can be pulled out from the side wall and a ventilation hole at the bottom of the smoke exhaust drawer 2, a conical smoke collection hood 3 that communicates with the inside of the housing 1 and is located above the smoke exhaust drawer 2, and a smoke exhaust pipe 4 connected to the upper end of the smoke collection hood 3, an air pump 5 installed on both sides of the top of the housing 1, a smoke extraction pipe 6 connected to the air pump 5, and a smoke extraction hood 7 with an opening facing the top of the smoke exhaust pipe 4 fixedly installed at the top of the smoke extraction pipe 6, and a return smoke pipe 8 connected to the bottom of the air pump 5 that leads to the bottom of the smoke collection hood 3 inside the housing 1.

[0005] Preferably, an extension tube 9 is inserted into the smoke outlet pipe 4, and a smoke hood 10 covering the smoke sensor is connected to the upper end of the extension tube 9.

[0006] Preferably, an extension tube 2 11 is inserted into the smoking tube 6, and the smoking hood 7 is disposed at the upper end of the extension tube 2 11.

[0007] Preferably, the housing 1 is also equipped with an ash receiving drawer 12 located below the smoke drawer 2 for receiving ash leaking out of the smoke drawer 2.

[0008] Preferably, an air pump 13 is installed on the smoke outlet pipe 4 to draw the smoke upward.

[0009] Preferably, the side wall of the smoke outlet pipe 4 is connected to an overflow pipe 14 below the second air pump 13. The overflow pipe 14 is connected to the third air pump 15 installed on the housing 1. The third air pump 15 is connected to a metal corrugated telescopic pipe 16.

[0010] Preferably, a battery 17 for supplying power to air pump 1, air pump 2, and air pump 3 is mounted on the top of the housing 1 via a heat-insulating bracket.

[0011] Preferably, the bottom of the housing 1 is equipped with casters for easy movement.

[0012] The beneficial effects of this utility model are as follows: This utility model uses a smoke extraction pipe 6 to draw back the smoke detected by the smoke sensor and then draw it back into the housing 1, where it is then transported upwards through the smoke outlet pipe 4 to the smoke sensor for detection. This avoids too much smoke drifting indoors and polluting the indoor air. At the same time, it gradually increases the concentration of smoke transported upwards through the smoke outlet pipe 4, thereby increasing the effectiveness of the smoke sensor detection and preventing the smoke concentration from being too low to detect properly. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the three-dimensional structure of this utility model. Figure 1 .

[0014] Figure 2 This is a schematic diagram of the three-dimensional structure of this utility model. Figure 2 .

[0015] Figure 3 This is a partial cross-sectional three-dimensional structural schematic diagram of this utility model. Detailed Implementation

[0016] To make the objectives, technical solutions, and beneficial effects of this utility model clearer, the preferred embodiments of this utility model will be described in detail below with reference to the accompanying drawings, so as to facilitate the understanding of those skilled in the art.

[0017] like Figure 1-3As shown, this utility model provides a detection device for fire protection facility detectors, including a housing 1. A smoke exhaust drawer 2, which is pulled out from the side wall, is installed inside the housing 1. The bottom of the smoke exhaust drawer 2 is provided with ventilation holes. A conical smoke collection hood 3, which is connected to the inside of the housing 1 and located above the smoke exhaust drawer 2, is provided on the top of the housing 1. A smoke exhaust pipe 4 is connected to the upper end of the smoke collection hood 3. Air pumps 5 are installed on both sides of the top of the housing 1. A smoke extraction pipe 6 is connected to the air pumps 5. A smoke extraction hood 7 with an opening facing the top of the smoke exhaust pipe 4 is fixedly installed on the top of the smoke extraction pipe 6. A return smoke pipe 8 with an end leading to the bottom of the smoke collection hood 3 inside the housing 1 is connected to the bottom of the air pumps 5. Pull out the smoke drawer 2 from the side of the box 1, put the lit combustible material (such as incense or weeds) into the smoke drawer 2, and then push the smoke drawer 2 back into the box 1 to allow the smoke to rise. The smoke is then concentrated and transported to the smoke outlet pipe 4 through the conical smoke collection hood 3. The smoke drifts from the top of the smoke outlet pipe 4 to the smoke sensor for detection. The air pump 5 starts working to absorb the smoke that drifts to the surroundings after being detected by the smoke sensor. The smoke is then absorbed downwards from the smoke hood 7 through the smoke pipe 6 and transported back to the bottom of the smoke collection hood 3 in the box 1 through the return smoke pipe 8. It is then transported upwards again from the smoke outlet pipe 4 to the smoke sensor, thus preventing too much smoke from drifting indoors and polluting the indoor air. At the same time, the concentration of the smoke transported upwards through the smoke outlet pipe 4 is gradually increased, which increases the effectiveness of the smoke sensor detection and avoids the smoke concentration being too low to detect properly.

[0018] An extension tube 9 is inserted into the smoke outlet pipe 4, and a smoke hood 10, which covers the smoke sensor, is connected to the upper end of the extension tube 9. The extension tube 9 on the smoke outlet pipe 4 can directly deliver smoke to the area below the smoke sensor, and the smoke hood 10 can cover the smoke sensor, increasing the effect of the smoke on the smoke sensor. When the device is not in use, the extension tube 9 can be removed to facilitate the movement of the device. When in use, the extension tube 9 is inserted back into the smoke outlet pipe 4. By setting the extension tube 9, extension tubes of different lengths can be inserted according to the height of the smoke sensor to facilitate detection of smoke sensors of different heights.

[0019] An extension tube 2 11 is inserted into the smoking tube 6, and the smoking hood 7 is located at the upper end of the extension tube 2 11. The extension tube 2 11 allows the length of the smoking tube 6 to be divided, and the extension tube 2 11 can be removed when not in use, facilitating the movement of the device. Furthermore, extension tubes of different lengths can be inserted according to the height of the smoke sensor, allowing for detection of smoke sensors at different heights.

[0020] The housing 1 is also equipped with an ash collection drawer 12 located below the smoke drawer 2, which is used to collect the ash that leaks out of the smoke drawer 2.

[0021] An air pump 213 is installed on the smoke outlet pipe 4 to draw smoke upwards. The air pump 213 absorbs the smoke generated by the combustion in the smoke outlet drawer 2, increasing the efficiency of upward smoke delivery.

[0022] An overflow pipe 14 is connected to the side wall of the smoke outlet pipe 4 below the second air pump 13. The overflow pipe 14 is connected to the third air pump 15 installed on the housing 1. The third air pump 15 is connected to a metal corrugated telescopic pipe 16. The smoke concentration output from the smoke outlet pipe 4 can be adjusted through the overflow pipe 14. When the smoke concentration output from the smoke outlet pipe 4 is too high, the third air pump 15 is activated to absorb some of the smoke. The overflowing smoke is absorbed by the overflow pipe 14 and discharged to the outside through the metal corrugated telescopic pipe 16. The metal corrugated pipe can be easily bent and moved, making it easy to connect the end to the outside. At the same time, after the test is completed, the smoke in the housing 1 can also be discharged to the outside through the overflow pipe 14 to avoid the inability to disperse the residual smoke in the room due to the test.

[0023] The top of the housing 1 is equipped with a battery 17 that supplies power to air pump 1, air pump 2, and air pump 3 15 via a heat insulation bracket.

[0024] The bottom of the housing 1 is equipped with casters for easy movement.

[0025] Work process: Pull out the smoke outlet drawer 2 from the side of the box 1, place lit combustible material (such as incense or weeds) into the smoke outlet drawer 2, and then push the smoke outlet drawer 2 back into the box 1, causing the smoke to rise. The smoke is then concentrated and directed to the smoke outlet pipe 4 through the conical smoke collection hood 3. The smoke drifts from the top of the smoke outlet pipe 4 to the smoke sensor for detection. The air pump 5 starts working to absorb the smoke that has drifted outwards after detection by the smoke sensor. The smoke is then drawn downwards from the smoke hood 7 through the smoke collection pipe 6, and transported back to the bottom of the smoke collection hood 3 in the box 1 through the return smoke pipe 8. It is then transported upwards again from the smoke outlet pipe 4 to the smoke sensor, thus preventing excessive smoke from spreading indoors and polluting the indoor air. Simultaneously, the concentration of smoke transported upwards through the smoke outlet pipe 4 gradually increases, enhancing the effectiveness of the smoke sensor detection and preventing inadequate detection due to low smoke concentration. After detection, the smoke in the box 1 is discharged outdoors through the overflow pipe 14.

[0026] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although the utility model has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made to it in form and detail without departing from the scope defined by the claims of this utility model.

Claims

1. A detection device for fire protection facility detectors, characterized in that: The box includes a housing (1), inside which is installed a smoke drawer (2) that can be pulled out from the side wall. The bottom of the smoke drawer (2) is provided with ventilation holes. The top of the housing (1) is provided with a conical smoke collection hood (3) that communicates with the inside of the housing (1) and is located above the smoke drawer (2). The upper end of the smoke collection hood (3) is connected to a smoke outlet pipe (4). Air pumps (5) are installed on both sides of the top of the housing (1). A smoke extraction pipe (6) is connected to the air pump (5). A smoke extraction hood (7) with an opening facing the top of the smoke outlet pipe (4) is fixedly installed on the top of the smoke extraction pipe (6). The bottom of the air pump (5) is connected to a return smoke pipe (8) whose end leads to the bottom of the smoke collection hood (3) inside the housing (1).

2. The detection device for a fire protection facility detector according to claim 1, characterized in that: An extension tube (9) is inserted into the smoke outlet pipe (4), and a smoke hood (10) covering the smoke sensor is connected to the upper end of the extension tube (9).

3. The detection device for a fire protection facility detector according to claim 1 or 2, characterized in that: An extension tube (11) is inserted into the smoking tube (6), and the smoking hood (7) is located at the upper end of the extension tube (11).

4. The detection device for a fire protection facility detector according to claim 1, characterized in that: The box (1) is also equipped with an ash receiving drawer (12) located below the smoke drawer (2) for receiving the ash that leaks out of the smoke drawer (2).

5. The detection device for a fire protection facility detector according to claim 3, characterized in that: An air pump (13) is installed on the smoke outlet pipe (4) to draw the smoke upward.

6. A detection device for a fire protection facility detector according to any one of claims 1, 2, and 5, characterized in that: The side wall of the exhaust pipe (4) is connected to an overflow pipe (14) below the second air pump (13). The overflow pipe (14) is connected to the third air pump (15) installed on the box (1). The third air pump (15) is connected to a metal corrugated telescopic pipe (16).

7. The detection device for a fire protection facility detector according to claim 6, characterized in that: The top of the enclosure (1) is equipped with a battery (17) that supplies power to air pump one (5), air pump two (13) and air pump three (15) via a heat insulation bracket.

8. The detection device for a fire protection facility detector according to claim 1, characterized in that: The bottom of the box (1) is equipped with casters for easy movement.

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