Portable fire-fighting smoke exhaust device

Abstract

The utility model discloses a portable fire-fighting smoke exhaust device, and relates to the technical field of fire-fighting appliances. The battery box is mounted on the main beam, and a switch is arranged on one side; the mounting beam is mounted at one end of the main beam; the smoke exhaust fan is installed on the installation beam, the battery box is connected with the smoke exhaust fan through an electric wire to supply power to the smoke exhaust fan, and air is blown to the end away from the battery box when the battery box rotates; and the handle is arranged on the main beam. The fire-fighting smoke exhaust device has the effect that the portability of the fire-fighting smoke exhaust device is improved.

Description

A portable fire smoke exhaust device Technical Field

[0001] This application relates to the technical field of fire-fighting equipment, and in particular to a portable fire smoke exhaust device. Background Technology

[0002] Firefighters often face large amounts of dense smoke when entering a fire scene, which significantly impacts their operations. This is especially true inside buildings, where the smoke can impair observation and judgment of the environment and negatively affect the health of firefighters. Therefore, smoke extraction is crucial when conducting firefighting operations inside buildings. However, existing fire smoke extraction systems are not very portable and cannot be moved with firefighters for effective smoke extraction. Summary of the Invention

[0003] The purpose of this utility model application is to improve the poor portability of existing fire smoke exhaust devices. This application provides a portable fire smoke exhaust device.

[0004] The portable fire-fighting smoke extraction device provided in this application adopts the following technical solution:

[0005] A portable fire smoke extraction device, comprising

[0006] Main beam;

[0007] The battery box is mounted on the main beam and has a switch on one side.

[0008] The mounting beam is installed at one end of the main beam.

[0009] The exhaust fan is installed on the mounting beam. The battery box is connected to the exhaust fan via wires to power the exhaust fan. When it rotates, it blows air away from the end of the battery box.

[0010] The handle is mounted on the main beam.

[0011] Optionally, an abutment beam is fixed to the end of the main beam away from the mounting beam.

[0012] Optionally, the battery box is located on the main beam away from the mounting beam, and the battery box is also fixedly connected to the abutment beam.

[0013] Optionally, the mounting beam is rotatably connected to the main beam, and a fixing component is provided between the mounting beam and the main beam to fix the position of the mounting beam when it rotates to a state perpendicular to the main beam.

[0014] Optionally, the fixing components include a fixing frame and a fixing rod;

[0015] The main beam is fixed with a pair of first stiffening plates, and the mounting beam is fixed with a pair of second stiffening plates. The first stiffening plates and the second stiffening plates are rotatably connected.

[0016] A locking strip hole is provided at the same position on the second stiffener plate. The fixing rod passes through the locking strip hole and slides in connection with the locking strip hole. Both ends of the fixing rod are fixedly connected to the fixing frame.

[0017] The top of the first stiffening plate has a locking groove. When the mounting beam is perpendicular to the main beam, the bottom of the locking strip hole is connected to the locking groove, and the fixing rod can be located in both the locking groove and the locking strip hole at the same time.

[0018] Optionally, the fixing components include an extension plate, a locking plate, and a locking spring;

[0019] The extension plate is fixed on the main beam. When the mounting beam is perpendicular to the main beam, the extension plate is opposite to the mounting beam.

[0020] The extension plate has a sliding groove, the locking plate is slidably connected in the sliding groove, and the locking spring is located inside the extension plate, with one end fixedly connected to the inside of the extension plate and the other end fixedly connected to the locking plate, so that the locking plate extends out of the extension plate.

[0021] The mounting beam has an insertion slot. When the mounting beam is rotated to a position perpendicular to the main beam, the locking plate is locked in the insertion slot.

[0022] The locking plate is equipped with an unlocking lever that extends out from inside the extension plate.

[0023] Optionally, the mounting beam is equipped with a protective mesh shell that encloses the exhaust fan.

[0024] Optionally, a handle is provided at the bottom of the main beam.

[0025] Optionally, belts are provided at both ends of the abutment beam, and the ends of the belts are provided with buckles that can be interlocked.

[0026] Optionally, a pressure hood is fixed on the protective mesh shell, and the pressure hood is configured with a reduced diameter from the end near the exhaust fan to the end away from the exhaust fan.

[0027] In summary, this application includes at least one of the following beneficial technical effects:

[0028] 1. This smoke extraction device can be easily carried to the fire scene by firefighters. The main beam is supported on the firefighter's abdomen by holding the handle with one hand and holding the control switch of the battery box with the other hand. The smoke extraction fan at the front end blows away the smoke in front of the firefighter and can be moved to perform smoke extraction operations as the firefighter moves.

[0029] 2. The rotating mechanism of the mounting beam allows it to be opened during use, thereby improving the protection of the smoke exhaust device when it is stored away;

[0030] 3. When the mounting beam is rotated to the vertical position, the fixing rod can move into the locking groove through the locking strip hole, and the rotation position of the mounting beam is restricted and fixed by the setting of the locking strip hole, thereby improving the stability of the mounting beam rotation fixation;

[0031] 4. The curved surface of the abutment beam can effectively fit the abdomen of the person, improving the stress stability and comfort of use. The abutment beam can also be fixed to the waist of the firefighter by wrapping two waist belts around the back and buckling them, which improves the effectiveness of the smoke exhaust device when it is moved. Attached Figure Description

[0032] Figure 1 is a structural schematic diagram of Embodiment 1 of this application;

[0033] Figure 2 is a partial schematic diagram of the fixing component shown in Embodiment 1 of this application;

[0034] Figure 3 is a schematic diagram showing the smoke exhaust device in use according to Embodiment 1 of this application.

[0035] Figure 4 is a schematic diagram showing the position of the fixing rod in the locking groove in Embodiment 1 of this application;

[0036] Figure 5 is a structural schematic diagram of Embodiment 2 of this application;

[0037] Figure 6 is a partial cross-sectional view of the fixing component shown in Embodiment 2 of this application;

[0038] Figure 7 is a structural schematic diagram of Embodiment 3 of this application;

[0039] Figure 8 is a partial cross-sectional view of the pressure shroud section shown in Embodiment 3 of this application.

[0040] In the diagram, 1. Main beam; 11. Handle; 12. Lifting handle; 13. First stiffening plate; 131. Locking groove; 132. Limiting groove; 2. Mounting beam; 21. Second stiffening plate; 22. Locking strip hole; 23. Insertion groove; 3. Abutment beam; 31. Waist belt; 311. Buckle; 4. Battery box; 5. Exhaust fan; 51. Protective mesh shell; 511. Pressure cover; 6. Fixing assembly; 6a1. Fixing frame; 6a2. Fixing rod; 6b1. Extension plate; 6b11. Sliding groove; 6b2. Locking plate; 6b21. Unlocking rod; 6b3. Locking spring. Detailed Implementation

[0041] The present application will be further described in detail below with reference to Figures 1-6.

[0042] This application discloses a portable fire-fighting smoke extraction device.

[0043] Example 1

[0044] Referring to Figures 1 and 2, the portable fire-fighting smoke exhaust device includes a main beam 1, a mounting beam 2, an abutment beam 3, a battery box 4, and a smoke exhaust fan 5.

[0045] Referring to Figures 1 and 3, mounting beam 2 is rotatably connected to the top of main beam 1 at one end. When the end of mounting beam 2 abuts against the upper surface of main beam 1, mounting beam 2 is perpendicular to main beam 1. Abutment beam 3 is fixed to the end of main beam 1 away from mounting beam 2. Exhaust fan 5 is mounted on mounting beam 2 and located at the end of mounting beam 2 away from main beam 1. Battery box 4 is fixed to main beam 1 and located at the end of main beam 1 away from mounting beam 2. Battery box 4 is also fixedly connected to the upper surface of abutment beam 3. Battery box 4 is connected to exhaust fan 5 via wires and supplies power to exhaust fan 5. When mounting beam 2 is perpendicular to main beam 1, the rotation of exhaust fan 5 blows air towards the end away from battery box 4. A handle 11 is fixed to the side wall of main beam 1, and a carrying handle 12 is fixed to the bottom of main beam 1. The power switch is located on the side of battery box 4 away from handle 11. Mounting beam 2 is provided with a protective mesh shell 51, which encloses exhaust fan 5. Both the main beam 1 and the mounting beam 2 are made of square steel tubing and are hollow inside. The connecting wires of the battery box 4 and the exhaust fan 5 pass through the interior of the main beam 1 and the mounting beam 2.

[0046] The end of the abutment beam 3 furthest from the main beam 1 is curved, designed to fit snugly against the abdomen of firefighters. Waist belts 31 are provided at both ends of the abutment beam 3, with interlocking buckles 311 at their ends.

[0047] A fixing component 6 is provided between the mounting beam 2 and the main beam 1 to fix the position of the mounting beam 2 when the mounting beam 2 is perpendicular to the main beam 1.

[0048] The handle 12 is designed to make it easy for firefighters to grab and carry. When firefighters enter the fire scene and need to ventilate the smoke, they can place the abutment beam 3 against their abdomen and secure it to their waist with the belt 31. After rotating and opening the mounting beam 2, the position of the mounting beam 2 is fixed by the fixing component 6. Then, one hand holds the handle, the other hand holds the battery box 4 and turns on the switch to power the smoke exhaust fan 5. The smoke exhaust fan 5 rotates and blows away the smoke in front of the firefighters, thus enabling mobile smoke venting operations as the firefighters move.

[0049] Referring to Figures 2 and 4, the fixing component 6 includes a fixing frame 6a1 and a fixing rod 6a2. A pair of first stiffening plates 13 are fixedly mounted on the main beam 1, and a pair of second stiffening plates 21 are fixedly mounted on the mounting beam 2. The first stiffening plates 13 and second stiffening plates 21 are rotatably connected. Locking slots 22 are formed at the same positions on the second stiffening plates 21. The fixing rod 6a2 passes through the locking slots 22 and is slidably connected to them. Both ends of the fixing rod 6a2 are fixedly connected to the fixing frame 6a1. When the mounting beam 2 rotates to a position perpendicular to the main beam 1, if the main beam 1 is horizontal, the locking slots 22 are vertically positioned. A locking groove 131 is formed at the top of the first stiffening plate 13. When the mounting beam 2 is perpendicular to the main beam 1, the bottom of the locking slots 22 communicates with the locking grooves 131, allowing the fixing rod 6a2 to be simultaneously located within both the locking grooves 131 and the locking slots 22. The top of the first stiffening plate 13 is an arc surface. After the fixing rod 6a2 is disengaged from the locking groove 131, it can abut against the upper surface of the first stiffening plate 13. At this time, the fixing rod 6a2 is located at the top of the locking strip hole 22. The part of the first stiffening plate 13 near the battery box 4 has a limiting groove 132. When the fixing rod 6a2 abuts against the limiting groove 132, the mounting beam 2 is parallel to the main beam 1.

[0050] In this way, as the mounting beam 2 rotates to a vertical position, the fixing rod 6a2 abuts against the upper surface of the first stiffening plate 13 and continuously moves upward. When the mounting beam 2 rotates to a vertical position, the fixing rod 6a2 moves to the locking groove 131 and falls into the locking groove 131 through the locking strip hole 22, thereby fixing the current position of the mounting beam 2 and improving the stability and efficiency of fixing the position of the mounting beam 2. When the mounting beam 2 needs to be folded, the fixing rod 6a2 is moved upward by the fixing frame 6a1, causing the fixing rod 6a2 to disengage from the locking groove 131, and the mounting beam 2 is rotated back to its original position. When the fixing rod 6a2 abuts against the limiting groove 132, the mounting beam 2 rotates to a horizontal position.

[0051] The implementation principle of Embodiment 1 of this application is as follows: the smoke extraction device can be easily carried and moved via the handle 12. When moving to the fire scene for smoke extraction operations, the abutment beam 3 is placed against the waist and secured to the firefighter's waist via the waist belt 31. Then, the mounting beam 2 is rotated and unfolded, and the fixing rod 6a2 is placed in the locking groove 131 to fix the position of the mounted beam 2 after rotation. Holding the handle 11 with one hand and supporting the battery box 4 with the other, and turning on the switch, the smoke extraction fan 5 rotates to blow away the smoke in front of the firefighter, thus facilitating mobile firefighting operations and observation in the fire scene, especially in buildings, and improving the portability of smoke extraction firefighting operations.

[0052] Example 2

[0053] Referring to Figures 5 and 6, the difference between this embodiment and Embodiment 1 is that the fixing component 6 includes an extension plate 6b1, a locking plate 6b2, and a locking spring 6b3. The extension plate 6b1 is fixed on the main beam 1 and located on the side wall of the main beam 1. The extension plate 6b1 is a hollow square steel tube. When the mounting beam 2 is perpendicular to the main beam 1, the extension plate 6b1 is opposite to the mounting beam. The extension plate 6b1 has a sliding groove 6b11, and the locking plate 6b2 is slidably connected within the sliding groove 6b11. The locking spring 6b3 is located within the extension plate 6b1, with one end fixedly connected to the interior of the extension plate 6b1 and the other end fixedly connected to the locking plate 6b2, so that the locking plate 6b2 partially extends out of the extension plate 6b1. The mounting beam 2 has an insertion groove 23, and when the mounting beam 2 rotates to a position perpendicular to the main beam 1, the locking plate 6b2 is engaged within the insertion groove 23. The locking plate 6b2 is fixed with an unlocking rod 6b21, and the unlocking spring sleeves the unlocking rod 6b21 inside, with the unlocking rod 6b21 passing through the extension plate 6b1.

[0054] The difference between Embodiment 2 and Embodiment 1 lies in the following: When the mounting beam 2 is rotated to a vertical position, the locking plate 6b2 aligns with the insertion slot 23 and springs into the slot 23, thereby locking the rotational position of the mounting beam 2. When the mounting beam 2 needs to be folded, the unlocking rod 6b21 is pulled out, which causes the extension plate 6b1 to disengage from the insertion slot 23, releasing the fixation of the mounting beam 2's position.

[0055] Example 3

[0056] Referring to Figures 7 and 8, the difference between this embodiment and Embodiment 1 is that a pressure hood 511 is fixedly mounted on the protective mesh shell 51. The pressure hood 511 has a tapered diameter from the end closest to the exhaust fan 5 to the end furthest from the exhaust fan 5. The angle θ formed by the conical surface of the pressure hood 511 and its central axis is not less than 15°, which is 15° in this embodiment. The overall height h of the pressure hood 511 is 150mm in this embodiment. The pressure hood 511 is made of stainless steel and is welded and fixed to the protective mesh shell 51.

[0057] The implementation principle of Embodiment 3 of this application is different in that: by setting up the pressure hood 511, the air blown out by the smoke exhaust fan 5 passes through the pressure hood 511 at high speed under the effect of the reduced diameter of the pressure hood 511, thereby increasing the air velocity blown out by the smoke exhaust fan 5 and improving the smoke exhaust effect at the fire scene.

[0058] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A portable fire-fighting smoke extraction device, characterized in that: Includes a main beam (1); a battery box (4) installed on the main beam (1) with a switch on one side; a mounting beam (2) installed at one end of the main beam (1); a smoke exhaust fan (5) installed on the mounting beam (2), the battery box (4) being connected to the smoke exhaust fan (5) via wires to supply power to the smoke exhaust fan (5), and blowing air away from the battery box (4) when rotating; and a handle (11) installed on the main beam (1).

2. The portable fire-fighting smoke extraction device according to claim 1, characterized in that: The abutment beam (3) is fixed at the end of the main beam (1) away from the installation beam (2).

3. A portable fire-fighting smoke extraction device according to claim 2, characterized in that: The battery box (4) is located on the main beam (1) away from the mounting beam (2), and the battery box (4) is also fixedly connected to the abutment beam (3).

4. A portable fire-fighting smoke extraction device according to claim 1, characterized in that: The mounting beam (2) is rotatably connected to the main beam (1). A fixing component (6) is provided between the mounting beam (2) and the main beam (1) to fix the position of the mounting beam (2) when the mounting beam (2) is rotated to a state perpendicular to the main beam (1).

5. A portable fire-fighting smoke extraction device according to claim 4, characterized in that: The fixing component (6) includes a fixing frame (6a1) and a fixing rod (6a2); a pair of first stiffening plates (13) are fixedly provided on the main beam (1), and a pair of second stiffening plates (21) are fixedly provided on the mounting beam (2). The first stiffening plates (13) and the second stiffening plates (21) are rotatably connected; a locking strip hole (22) is opened at the same position on the second stiffening plate (21). The fixing rod (6a2) passes through the locking strip hole (22) and slides through the locking strip hole (22). Both ends of the fixing rod (6a2) are fixedly connected to the fixing frame (6a1); a locking groove (131) is opened at the top of the first stiffening plate (13). When the mounting beam (2) is perpendicular to the main beam (1), the bottom of the locking strip hole (22) is connected to the locking groove (131). The fixing rod (6a2) can be located in both the locking groove (131) and the locking strip hole (22) at the same time.

6. A portable fire-fighting smoke extraction device according to claim 4, characterized in that: The fixing assembly (6) includes an extension plate (6b1), a locking plate (6b2), and a locking spring (6b3); the extension plate (6b1) is fixed on the main beam (1), and when the mounting beam (2) is perpendicular to the main beam (1), the extension plate (6b1) is opposite to the mounting beam (2); the extension plate (6b1) has a sliding groove (6b11), the locking plate (6b2) is slidably connected in the sliding groove (6b11), and the locking spring (6b3) is located in the extension plate (6b1). One end is fixedly connected to the inside of the extension plate (6b1), and the other end is fixedly connected to the locking plate (6b2), so that part of the locking plate (6b2) extends out of the extension plate (6b1); the mounting beam (2) is provided with an insertion groove (23), and when the mounting beam (2) is rotated to a position perpendicular to the main beam (1), the locking plate (6b2) is locked in the insertion groove (23); the locking plate (6b2) is equipped with an unlocking rod (6b21), and the unlocking rod (6b21) passes through the extension plate (6b1).

7. A portable fire-fighting smoke extraction device according to claim 1, characterized in that: The mounting beam (2) is equipped with a protective mesh shell (51), which encloses the exhaust fan (5).

8. A portable fire-fighting smoke extraction device according to claim 1, characterized in that: A handle (12) is provided at the bottom of the main beam (1).

9. A portable fire-fighting smoke extraction device according to claim 2, characterized in that: The two ends of the abutment beam (3) are provided with belts (31), and the ends of the belts (31) are provided with buckles (311) that can be fastened together.

10. A portable fire-fighting smoke extraction device according to claim 7, characterized in that: A pressure cover (511) is fixed on the protective mesh shell (51). The pressure cover (511) is set with a reduced diameter from the end near the exhaust fan (5) to the end away from the exhaust fan (5).

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