A smoke exhaust device for fire protection engineering

Abstract

The utility model discloses a smoke exhaust device for fire protection engineering, including a pipe body, a servo motor is arranged in the pipe body, a fan blade is fixedly connected to the end of the output shaft of the servo motor, a fixing ring is arranged on the fixing sleeve of the servo motor, four rectangular fixed rods are fixedly connected to the outer wall of the fixing ring, four rectangular sliding grooves are arranged on the inner wall of the pipe body and close to the right edge, a support rod is slidably inserted on the inner wall of the sliding groove, the end of the fixed rod away from the servo motor slides and extends into the sliding groove and is fixed with the support rod, a first support ring is arranged on the side of the servo motor away from the fan blade, and a dust net is fixedly embedded in the first support ring. In the utility model, the dust net, support rod and other mechanisms are arranged, which can not only prevent dust from the fan, but also facilitate the maintenance, inspection and cleaning of the dust prevention mechanism and the fan, thereby improving practicality and convenience.

Description

Technical Field

[0001] The utility model relates to the technical field of smoke exhaust, in particular to a smoke exhaust device for fire protection engineering. Background Art

[0002] The smoke control and exhaust system in fire protection engineering is a general term for smoke control systems and exhaust systems installed in buildings to prevent the spread of fire smoke. Its main function is to exhaust smoke and toxic gases from the fire scene through mechanical or natural smoke exhaust, while preventing smoke from entering evacuation passages or important equipment rooms to reduce visibility at the fire scene and create favorable conditions for personnel evacuation and rescue.

[0003] The existing smoke exhaust device can easily make the fan contaminated with dust during the process of exhausting smoke. The dust accumulation not only affects the normal operation of the fan, but also reduces the service life of the fan. Utility Model Content

[0004] The purpose of the utility model is to solve the problems raised in the above background technology, and to propose a smoke prevention and exhaust device for fire protection engineering.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] The smoke exhaust device for fire protection engineering comprises a pipe body, wherein a servo motor is arranged in the pipe body, and a fan blade is fixedly connected to the output shaft end of the servo motor, and a fixing ring is arranged on the fixing sleeve of the servo motor, and four rectangular fixing rods are fixedly connected to the outer wall of the fixing ring, and four rectangular sliding grooves are arranged on the inner wall of the pipe body and near the right edge, and a support rod is slidably inserted on the inner wall of the sliding groove, and one end of the fixing rod away from the servo motor slides and extends into the sliding groove and is fixed to the support rod, and a first support ring is arranged on the side of the servo motor away from the fan blade, and a dustproof net is fixedly embedded in the first support ring, and four rectangular connecting blocks are fixedly connected on the outer wall of the first support ring, and one end of the connecting block away from the first support ring slides and extends into the sliding groove and is fixed to the support rod, and a second support ring is arranged on the right end of the pipe body, and one end of the support rod passes through the sliding groove and is fixed to the second support ring, and a bolt is arranged on the side of the second support ring away from the pipe body, and the second support ring is fixed to the pipe body by the bolt.

[0007] Preferably, a slot is provided at the left end of the support rod, a limiting rod is slidably inserted on the inner side wall of the slot, and one end of the limiting rod passes through the slot and is fixedly connected to the inner side wall of the slide groove.

[0008] Preferably, the right end of the limiting rod is conical.

[0009] Preferably, a rubber ring is fixedly connected to one end of the second branch ring close to the tube body.

[0010] Preferably, a pull ring is fixedly connected to a side of the second branch ring away from the tube body.

[0011] Preferably, a shielding net is fixedly embedded in the second branch ring.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] 1. In the utility model, a servo motor cooperates with heat dissipation to form a fan for smoke exhaust operation, and a dust-proof mechanism is formed by a dust-proof net and a first ring, which can prevent dust from entering the pipe body through the shielding net, thereby improving the safety of the fan during operation;

[0014] 2. In the utility model, the arrangement of bolts, a second support ring, a support rod, a fixing rod, a fixing ring, a connecting block and a first support ring makes it convenient for users to take out the fan and the dust screen for maintenance, inspection or cleaning. In the utility model, the arrangement of mechanisms such as the dust screen and the support rod not only can prevent dust from entering the fan, but also facilitates maintenance, inspection and cleaning of the dust screen mechanism and the fan, thereby improving practicality and convenience. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural schematic diagram of a smoke exhaust device for fire protection engineering proposed by the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the smoke exhaust device for fire protection engineering proposed by the utility model at position A;

[0017] Figure 3 The utility model is a partial side structural schematic diagram of the second branch ring of a smoke exhaust device for fire protection engineering.

[0018] In the figure: 1-tube body, 2-first support ring, 3-dustproof net, 4-support rod, 5-fixing rod, 6-servo motor, 7-fan blade, 8-second support ring, 9-bolt, 10-shielding net, 11-rubber ring, 12-fixing ring, 13-limiting rod, 14-connecting block. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] Reference Figure 1-3A smoke exhaust device for fire protection engineering includes a pipe body 1, a servo motor 6 is arranged inside the pipe body 1, which is used to drive the fan blade 7 to rotate, and the fan blade 7 is fixedly connected to the end of the output shaft of the servo motor 6 to drive the air flow. A fixed ring 12 is fixedly provided on the servo motor 6 to support the servo motor 6. Four rectangular fixed rods 5 are fixedly connected to the outer wall of the fixed ring 12 to support the fixed ring 12. Four rectangular sliding grooves are arranged on the inner wall of the pipe body 1 and near the right edge. A support rod 4 is slidably inserted on the inner wall of the sliding groove to support the fixing rod 5. The end of the fixing rod 5 away from the servo motor 6 slides and extends into the sliding groove and is fixed to the support rod 4;

[0021] In this embodiment, a first support ring 2 is provided on the side of the servo motor 6 away from the fan blades 7, which is used to support the dustproof net 3. The dustproof net 3 is fixedly embedded in the first support ring 2 to prevent the servo motor 6 from dust. Four rectangularly distributed connecting blocks 14 are fixedly connected to the outer wall of the first support ring 2 to support the first support ring 3. One end of the connecting block 14 away from the first support ring 2 slides and extends into the slide groove and is fixed to the support rod 4.

[0022] In this embodiment, a second support ring 8 is provided at the right end of the tube body 1 for supporting the support rod 4. One end of the support rod 4 passes through the slide groove and is fixed to the second support ring 8. A shielding net 10 is fixedly embedded in the second support ring 8 for preventing debris from entering the tube body 1. A slot is provided at the left end of the support rod 4. A limiting rod 13 is slidably inserted on the inner side wall of the slot for supporting the support rod 4. One end of the limiting rod 13 passes through the slot and is fixedly connected to the inner side wall of the slide groove. The right end of the limiting rod 13 is conically set to facilitate the limiting rod 13 to be inserted into the slot. A bolt 9 is provided on the side of the second support ring 8 away from the tube body 1 for fixing the second support ring 8. The second support ring 8 is fixed to the tube body 1 by the bolt 9. A rubber ring 11 is fixedly connected to one end of the second support ring 8 close to the tube body 1 for improving the tightness between the second support ring 8 and the tube body 1. A pull ring is fixedly connected to the side of the second support ring 8 away from the tube body 1 for facilitating the user to pull the second support ring 8.

[0023] In this embodiment, the fan blades 7 are first driven to rotate by the servo motor 6, and the fan blades 7 drive the air flow, thereby realizing the smoke exhaust operation. The dustproof net 3 plays a dust-proof role for the servo motor 6, and the shielding net 10 prevents debris from entering the tube body 1, thereby improving the safety of the fan blades 7 during rotation. During maintenance and inspection, the bolts 9 are unscrewed, and the second support ring 8 is pulled away from the tube body 1. The second support ring 8 drives the support rod 4 to be pulled outward, and the support rod 4 drives the servo motor 6 and the dustproof net 3 to be pulled out from the tube body 1 through the fixing rod 5, the fixing ring 12 and the connecting block 14, thereby facilitating the user to perform maintenance, inspection and cleaning operations.

[0024] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A smoke exhaust device for fire protection engineering, comprising a pipe body (1), characterized in that: A servo motor (6) is arranged inside the tube body (1), and the end of the output shaft of the servo motor (6) is fixedly connected to a fan blade (7). A fixing ring (12) is fixedly sleeved on the servo motor (6), and four rectangularly distributed fixing rods (5) are fixedly connected to the outer wall of the fixing ring (12). Four rectangularly distributed sliding grooves are arranged on the inner wall of the tube body (1) and near the right edge. A support rod (4) is slidably inserted on the inner wall of the sliding groove. One end of the fixing rod (5) away from the servo motor (6) slides and extends into the sliding groove and is fixed to the support rod (4). The servo motor (6) is away from the fan blade (7). A first support ring (2) is provided on one side of the tube body (1), a dust screen (3) is fixedly embedded in the first support ring (2), four rectangularly distributed connection blocks (14) are fixedly connected to the outer wall of the first support ring (2), one end of the connection block (14) away from the first support ring (2) slides and extends into the slide groove and is fixed to the support rod (4), a second support ring (8) is provided on the right end of the tube body (1), one end of the support rod (4) passes through the slide groove and is fixed to the second support ring (8), a bolt (9) is provided on the side of the second support ring (8) away from the tube body (1), and the second support ring (8) is fixed to the tube body (1) by the bolt (9).

2. A smoke exhaust device for fire protection engineering according to claim 1, characterized in that: A slot is provided at the left end of the support rod (4), a limiting rod (13) is slidably inserted on the inner side wall of the slot, and one end of the limiting rod (13) passes through the slot and is fixedly connected to the inner side wall of the slide groove.

3. A smoke exhaust device for fire protection engineering according to claim 2, characterized in that: The right end of the limiting rod (13) is conical.

4. The smoke exhaust device for fire protection engineering according to claim 1, characterized in that: One end of the second branch ring (8) close to the tube body (1) is fixedly connected to a rubber ring (11).

5. The smoke exhaust device for fire protection engineering according to claim 1, characterized in that: A pull ring is fixedly connected to the side of the second branch ring (8) away from the tube body (1).

6. The smoke exhaust device for fire protection engineering according to claim 1, characterized in that: A shielding net (10) is fixedly embedded in the second branch ring (8).

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