Actively triggered fire smoke exhaust system

Abstract

This utility model discloses an actively triggered fire smoke exhaust device, belonging to the field of fire smoke exhaust technology. The actively triggered fire smoke exhaust device includes a smoke exhaust fan, a mounting plate fixed to one side of the smoke exhaust fan, a pulley rotatably connected to the upper part of one side of the mounting plate, a conductive plate embedded on the outer side of the pulley, a pull rope slidably connected to the outer side of the pulley, a counterweight fixed to one end of the pull rope, a fixing ring fixed to the upper part of one side of the mounting plate, two conductive blocks embedded on the outer side of the fixing ring, a piston cylinder fixed to the lower part of one side of the mounting plate, a piston block slidably connected to the inner side of the piston cylinder, and a piston rod slidably connected to the inner side of the piston cylinder. This utility model has a simple and durable structure, greatly extending its service life and significantly reducing the number of maintenance operations. It solves the problem of short lifespan of smoke alarms, requiring regular maintenance and replacement, which increases later operating costs.

Description

Technical Field

[0001] This utility model belongs to the field of fire smoke exhaust technology, and more specifically, it relates to an actively triggered fire smoke exhaust device. Background Technology

[0002] Fire smoke extraction is an important component of building fire protection systems. Its core function is to promptly remove smoke and heat during a fire, reduce indoor smoke concentration, improve visibility, and create favorable conditions for personnel evacuation and fire fighting and rescue. Existing active-triggered fire smoke extraction devices are triggered by smoke detectors during a fire. However, smoke detectors have a short lifespan and require regular maintenance and replacement, increasing long-term operating costs. Therefore, an active-triggered fire smoke extraction device is proposed. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides an actively triggered fire smoke exhaust device with a simple and durable structure, which greatly extends its service life and significantly reduces the number of maintenance operations. This solves the problem mentioned in the background technology that smoke alarms have a short lifespan and require regular maintenance and replacement, which increases the later operating costs.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an actively triggered fire-fighting smoke exhaust device, comprising a smoke exhaust fan, a mounting plate fixed to one side of the smoke exhaust fan, a pulley rotatably connected to the upper part of one side of the mounting plate, a conductive plate embedded on the outer side of the pulley, a pull rope slidably connected to the outer side of the pulley, a counterweight fixed to one end of the pull rope, a fixing ring fixed to the upper part of one side of the mounting plate, two conductive blocks embedded on the outer side of the fixing ring, a piston cylinder fixed to the lower part of one side of the mounting plate, a piston block slidably connected to the inner side of the piston cylinder, and the piston... A piston rod is slidably connected to the inner side of the cylinder. The lower end of the piston rod is fixedly connected to the top surface of the piston block, and the upper end of the piston rod is fixedly connected to the other end of the pull rope. An air inlet groove is opened on the lower outer side of the piston cylinder. A guide tube is fixed to the upper part of the piston cylinder. Hydraulic oil is provided on the inner side of the guide tube. Multiple connectors are fixed to the outer side of the guide tube. Two connecting rods are fixed to the outer side of the connectors. A base is fixed between the two connecting rods. A thermal glass ball is inserted into the top surface of the base. A stop block is inserted into the top surface of the thermal glass ball. The outer side of the stop block abuts against the inner side of the connector.

[0005] As a preferred embodiment of this utility model, the two conductive blocks are electrically connected to the exhaust fan.

[0006] As a preferred embodiment of this utility model, the air intake groove is located below the piston block, and the interior of the air intake groove is connected to the interior of the piston cylinder.

[0007] As a preferred embodiment of this invention, the conduit is located above the piston block, and the interior of the conduit is connected to the interior of the piston cylinder.

[0008] As a preferred embodiment of this invention, the interior of the connector is connected to the interior of the conduit.

[0009] As a preferred embodiment of this invention, the center of the fixed ring coincides with the center of the pulley.

[0010] As a preferred embodiment of this invention, the inner diameter of the fixing ring is equal to the outer diameter of the pulley.

[0011] This utility model provides an actively triggered fire smoke exhaust device, which has the following beneficial effects: This actively triggered fire-fighting smoke exhaust device works by causing the air temperature to rise during a fire, which ruptures the heat-sensitive glass bulb. The hydraulic oil inside the duct pushes the stop block inside the connector outward, causing the hydraulic oil to flow out and its pressure to drop. The counterweight then pulls the piston rod and piston block upward via a rope. During this process, the rope drives the pulley to rotate, causing the conductive plate on the pulley to contact the two conductive blocks, thus forming a circuit and activating the smoke exhaust fan. The device has a simple and durable structure, significantly extending its service life. It also greatly reduces the frequency of maintenance, solving the problem of short lifespans in smoke detectors that require regular maintenance and replacement, increasing long-term operating costs.

[0012] 2. This actively triggered fire smoke exhaust device has a reasonable and compact structural design and good performance. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of the actively triggered fire smoke exhaust device of this utility model.

[0014] Figure 2 This is a cross-sectional structural diagram of the actively triggered fire smoke exhaust device of this utility model.

[0015] Figure 3 This utility model relates to an actively triggered fire smoke exhaust device. Figure 2 Enlarged diagram of point A in the diagram.

[0016] Figure 4 This utility model relates to an actively triggered fire smoke exhaust device. Figure 2 Enlarged diagram of point B in the image.

[0017] Figure 5 This utility model relates to an actively triggered fire smoke exhaust device. Figure 2 Enlarged diagram of point C in the image.

[0018] In the diagram: 1. Exhaust fan; 2. Mounting plate; 3. Pulley; 4. Conductive sheet; 5. Pull rope; 6. Counterweight; 7. Fixing ring; 8. Conductive block; 9. Piston cylinder; 10. Piston block; 11. Piston rod; 12. Air inlet slot; 13. Pipe; 14. Connector; 15. Connecting rod; 16. Base; 17. Thermosensitive glass ball; 18. Stop block. Detailed Implementation

[0019] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0020] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] Please see Figures 1 to 5This utility model provides a technical solution: an actively triggered fire smoke exhaust device, including a smoke exhaust fan 1, a mounting plate 2 fixed to one side of the smoke exhaust fan 1, a pulley 3 rotatably connected to the upper part of one side of the mounting plate 2, a conductive sheet 4 embedded on the outer side of the pulley 3, a pull rope 5 slidably connected to the outer side of the pulley 3, a counterweight 6 fixed to one end of the pull rope 5, a fixing ring 7 fixed to the upper part of one side of the mounting plate 2, two conductive blocks 8 embedded on the outer side of the fixing ring 7, a piston cylinder 9 fixed to the lower part of one side of the mounting plate 2, a piston block 10 slidably connected to the inner side of the piston cylinder 9, a piston rod 11 slidably connected to the inner side of the piston cylinder 9, the lower end of the piston rod 11 fixedly connected to the top surface of the piston block 10, the upper end of the piston rod 11 fixedly connected to the other end of the pull rope 5, an air inlet groove 12 opened on the lower outer side of the piston cylinder 9, and a fixed upper part of the piston cylinder 9... A conduit 13 is fixed, with hydraulic oil inside the conduit 13. Multiple connectors 14 are fixed to the outside of the conduit 13. Two connecting rods 15 are fixed to the outside of the connectors 14. A base 16 is fixed between the two connecting rods 15. A thermal glass ball 17 is inserted into the top surface of the base 16. A stop block 18 is inserted into the top surface of the thermal glass ball 17. The outside of the stop block 18 abuts against the inside of the connector 14. Two conductive blocks 8 are electrically connected to the exhaust fan 1. The air intake groove 12 is located below the piston block 10. The inside of the air intake groove 12 is connected to the inside of the piston cylinder 9. The conduit 13 is located above the piston block 10. The inside of the conduit 13 is connected to the inside of the piston cylinder 9. The inside of the connector 14 is connected to the inside of the conduit 13. The center of the fixed ring 7 coincides with the center of the pulley 3. The inner diameter of the fixed ring 7 is equal to the outer diameter of the pulley 3. The conduit 13 is fixed to the ceiling. The counterweight 6 pulls the piston rod 11 and piston block 10 through the pull rope 5, thereby applying pressure to the hydraulic oil in the piston cylinder 9 and the conduit 13, thus achieving balance with the counterweight 6. When a fire occurs, the air temperature rises, causing the heat-sensitive glass ball 17 to rupture. The hydraulic oil inside the conduit 13 pushes the stop block 18 in the connector 14 to move outward, causing the hydraulic oil inside the conduit 13 to flow out and the hydraulic oil pressure to drop. The counterweight 6 pulls the piston rod 11 and piston block 10 upward through the pull rope 5. During this process, the pull rope 5 drives the pulley 3 to rotate, causing the conductive plate 4 on the pulley 3 to contact the two conductive blocks 8, thereby forming a circuit and starting the smoke exhaust fan 1. Through the above process, the structure is simple and durable, greatly extending the service life. At the same time, it greatly reduces the number of maintenance times, solving the problem of short life of smoke detectors, requiring regular maintenance and replacement, and increasing the later use costs.

[0023] The specific usage and function of this embodiment: This utility model fixes the conduit 13 to the ceiling. The counterweight 6 pulls the piston rod 11 and piston block 10 through the pull rope 5, thereby applying pressure to the hydraulic oil in the piston cylinder 9 and the conduit 13, thus achieving balance with the counterweight 6. When a fire occurs, the air temperature rises, causing the heat-sensitive glass ball 17 to break. The hydraulic oil inside the conduit 13 pushes the stop block 18 in the connector 14 to move outward, causing the hydraulic oil inside the conduit 13 to flow out and the pressure of the hydraulic oil to drop. The counterweight 6 pulls the piston rod 11 and piston block 10 upward through the pull rope 5. During this process, the pull rope 5 drives the pulley 3 to rotate, causing the conductive plate 4 on the pulley 3 to contact the two conductive blocks 8, thereby forming a passage and starting the smoke exhaust fan 1. Through the above process, the structure is simple and durable, greatly extending the service life and significantly reducing the number of maintenance times.

[0024] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An actively triggered fire-fighting smoke exhaust device, including a smoke exhaust fan (1), characterized in that: A mounting plate (2) is fixed to one side of the exhaust fan (1). A pulley (3) is rotatably connected to the upper part of one side of the mounting plate (2). A conductive sheet (4) is embedded on the outer side of the pulley (3). A pull rope (5) is slidably connected to the outer side of the pulley (3). A counterweight (6) is fixed to one end of the pull rope (5). A fixing ring (7) is also fixed to the upper part of one side of the mounting plate (2). Two conductive blocks (8) are embedded on the outer side of the fixing ring (7). A piston cylinder (9) is fixed to the lower part of one side of the mounting plate (2). A piston block (10) is slidably connected to the inner side of the piston cylinder (9). A piston rod (11) is slidably connected to the inner side of the piston cylinder (9). The lower end of the piston rod (11) is connected to the piston block (10). The top surface of 10) is fixedly connected, the upper end of the piston rod (11) is fixedly connected to the other end of the pull rope (5), the lower outer side of the piston cylinder (9) is provided with an air inlet groove (12), the upper part of the piston cylinder (9) is fixed with a conduit (13), the inner side of the conduit (13) is provided with hydraulic oil, the outer side of the conduit (13) is fixed with multiple connectors (14), the outer side of the connector (14) is fixed with two connecting rods (15), the base (16) is fixed between the two connecting rods (15), the top surface of the base (16) is inserted with a thermal glass ball (17), the top surface of the thermal glass ball (17) is inserted with a stop block (18), the outer side of the stop block (18) abuts against the inner side of the connector (14).

2. The actively triggered fire smoke exhaust device according to claim 1, characterized in that: The two conductive blocks (8) are electrically connected to the exhaust fan (1).

3. The actively triggered fire smoke exhaust device according to claim 1, characterized in that: The air intake groove (12) is located below the piston block (10), and the interior of the air intake groove (12) is connected to the interior of the piston cylinder (9).

4. The actively triggered fire smoke exhaust device according to claim 1, characterized in that: The conduit (13) is located above the piston block (10), and the interior of the conduit (13) is connected to the interior of the piston cylinder (9).

5. The actively triggered fire smoke exhaust device according to claim 1, characterized in that: The interior of the connector (14) is connected to the interior of the conduit (13).

6. The actively triggered fire smoke exhaust device according to claim 1, characterized in that: The center of the fixed ring (7) coincides with the center of the pulley (3).

7. The actively triggered fire smoke exhaust device according to claim 1, characterized in that: The inner diameter of the fixed ring (7) is equal to the outer diameter of the pulley (3).

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