Roof ventilator device for building fire-fighting smoke exhaust system

Abstract

The utility model discloses a roof ventilator device for a building fire-fighting smoke exhaust system, which comprises a mounting seat fixed on a roof, an air duct extending transversely is mounted on the mounting seat, a protective sleeve is arranged in the air duct, a driving motor is positioned in the protective sleeve, the front end of the driving motor is fixed on the rear wall surface of a front end plate of the protective sleeve, and the rear end of the driving motor is fixed on the rear wall surface of the front end plate of the protective sleeve. The front end of an output shaft of the driving motor extends out of the front wall face of a front end plate of the protective sleeve and is fixedly provided with an impeller, and a plurality of supporting legs are fixed to the outer side wall of the protective sleeve and welded and fixed to the inner side wall of the air duct. The device is installed on a roof and can be communicated with a specific smoke exhaust pipeline to achieve point-to-point smoke exhaust, independent air guiding and cooling can be conducted on the inner space of the protective sleeve, the cooling and heat dissipation effects of a driving motor in the protective sleeve are guaranteed, normal operation of the driving motor is guaranteed, and therefore normal fire-fighting smoke exhaust is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to fan equipment technical field more specifically, a kind of roof ventilator device for building fire smoke exhaust system. BACKGROUND

[0002] In the existing fire smoke exhaust system, roof ventilator is generally arranged on the roof of a building to guide wind and exhaust smoke. However, the existing fire smoke exhaust system is generally used to exhaust smoke from the entire building, and does not directly connect and exhaust smoke from specific pipelines. For the exhaust of specific pipelines, an axial flow fan is generally fixed inside the wall of a room to exhaust smoke. Since the axial flow fan is arranged in the room, the axial flow fan will be damaged and unable to work when the fire spreads to the room.

[0003] In addition, the explosion-proof device of the existing axial flow smoke exhaust fan is generally a protective cover arranged around the motor to protect the motor. Although the protective cover can protect the motor, it will affect the cooling of the motor. When the fire smoke exhaust system is used, the temperature of the smoke is high, and the temperature of the protective cover will be greatly increased after a long time of wind guiding. The high temperature of the protective cover will be transferred to the motor, so that the temperature of the motor is greatly increased, and the motor cannot be quickly cooled. In addition, the motor will be damaged, which will affect the effect of fire smoke exhaust. SUMMARY

[0004] The utility model discloses a roof ventilator device for building fire smoke exhaust system, which is installed on the roof. The roof ventilator device can be connected with specific smoke exhaust pipelines to realize point-to-point smoke exhaust. In addition, the roof ventilator device can independently guide wind and cool the internal space of the protective sleeve to ensure the cooling and heat dissipation effect of the driving motor in the protective sleeve, so that the driving motor can normally operate, and the normal fire smoke exhaust can be ensured.

[0005] The utility model discloses a roof ventilator device for building fire smoke exhaust system, which is installed on the roof. The roof ventilator device can be connected with specific smoke exhaust pipelines to realize point-to-point smoke exhaust. In addition, the roof ventilator device can independently guide wind and cool the internal space of the protective sleeve to ensure the cooling and heat dissipation effect of the driving motor in the protective sleeve, so that the driving motor can normally operate, and the normal fire smoke exhaust can be ensured.

[0006] A roof ventilator device for building fire smoke exhaust system includes a mounting seat fixed on the roof, and a horizontally extending air duct mounted on the mounting seat. The air duct is internally provided with a protective sleeve. A driving motor is arranged in the protective sleeve. The front end of the output shaft of the driving motor extends out of the front wall of the front end plate of the protective sleeve and is fixed with an impeller. A plurality of supporting legs are fixed on the outer side wall of the protective sleeve. The supporting legs are welded and fixed on the inner side wall of the air duct.

[0007] An air inlet connecting pipe is connected to the top wall plate of the protective sleeve. The top end of the air inlet connecting pipe extends out of the top end of the through hole of the top wall plate of the air duct. The outer side wall of the air inlet connecting pipe is welded and fixed on the inner side wall of the through hole of the top wall plate of the air duct. The air inlet connecting pipe is in communication with the protective sleeve.

[0008] The bottom wall plate of the protective sleeve is connected with an air outlet connecting pipe, the bottom end of the air outlet connecting pipe extends out of the bottom end of the through hole of the bottom wall plate of the air duct, the outer side wall of the air outlet connecting pipe is welded and fixed on the inner side wall of the through hole of the bottom wall plate of the air duct, the air outlet connecting pipe is communicated with the protective sleeve, the bottom end of the air outlet connecting pipe is fixed with a wind guide fan, the air inlet of the wind guide fan is opposite to the bottom end of the air outlet connecting pipe, and the air outlet of the wind guide fan is opposite to the lower side.

[0009] The bottom end of the air outlet connecting pipe is fixed with a wind guide fan, the air inlet of the wind guide fan is opposite to the bottom end of the air outlet connecting pipe, and the air outlet of the wind guide fan is opposite to the lower side.

[0010] The top end of the air outlet connecting pipe is fixed with an upper cover body, the top surface of the top plate of the upper cover body is fixed with an upper filter screen, the upper filter screen covers an upper middle through hole formed in the middle of the top plate of the upper cover body, and the upper middle through hole is communicated with the air inlet connecting pipe.

[0011] The rear end of the air duct is connected with a total air inlet connecting pipe, and the front end of the air duct is connected with a front air outlet pipe.

[0012] The front part and the rear part of the bottom surface of the air duct are fixed with lower support connecting feet, and the bottom parts of the lower support connecting feet are fixed on the mounting seat through bolts.

[0013] The top surface of the top wall plate of the air duct is fixed with a plurality of support rods, an upper covering plate is fixed on the top ends of all the support rods, the upper covering plate covers the top end of the air inlet connecting pipe, the left part and the right part of the upper covering plate are arc-bent downwards, and the front end and the rear end of the upper covering plate extend obliquely downwards.

[0014] The prominent effect of the utility model is:

[0015] It is installed on the roof, can be communicated with specific smoke exhaust pipes, realizes point-to-point smoke exhaust, can independently guide wind and cool the internal space of the protective sleeve, guarantees the cooling and heat dissipation effect of the driving motor in the protective sleeve, guarantees normal operation, and thus guarantees normal fire-fighting smoke exhaust. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a partial structure schematic view of the utility model;

[0017] Figure 2 It is Figure 1 A partial enlarged view of

[0018] Figure 3 It is Figure 1 Another partial enlarged view of

[0019] Figure 4 It is a partial structure schematic view between the front baffle and the front total connecting plate of the utility model. DETAILED DESCRIPTION

[0020] Embodiment, see as Figures 1 to 4 As shown in the drawings, a roof ventilator device for building fire smoke exhaust system comprises a mounting base 10 fixed on a roof, a horizontally extending air duct 20 mounted on the mounting base 10, and lower support connecting feet 21 fixed on the front and rear of the bottom surface of the air duct 20, the bottom of the lower support connecting feet 21 being fixed on the mounting base 10 by bolts.

[0021] The inside of the air duct 20 is provided with a protective sleeve 30, a driving motor 40 being in the protective sleeve 30, the front end of the driving motor 40 being fixed on the rear wall surface of the front end plate of the protective sleeve 30, the front end of the output shaft of the driving motor 40 extending out of the front wall surface of the front end plate of the protective sleeve 30 and being fixed with an impeller 41, a plurality of supporting feet 31 being fixed on the outer side wall of the protective sleeve 30, the supporting feet 31 being welded and fixed on the inner side wall of the air duct 20; the rear end plate of the protective sleeve 30 of the embodiment is of a detachable structure, being fixed on the rear end surface of the main cylinder body of the protective sleeve 30 by bolts (the bolts are omitted in the drawings as they are conventional structures).

[0022] A wind inlet connecting pipe 32 is connected to the top wall plate of the protective sleeve 30, the top end of the wind inlet connecting pipe 32 extending out of the top end of the through hole of the top wall plate of the air duct 20, the outer side wall of the wind inlet connecting pipe 32 being welded and fixed on the inner side wall of the through hole of the top wall plate of the air duct 20, the wind inlet connecting pipe 32 being communicated with the protective sleeve 30;

[0023] A wind outlet connecting pipe 33 is connected to the bottom wall plate of the protective sleeve 30, the bottom end of the wind outlet connecting pipe 33 extending out of the bottom end of the through hole of the bottom wall plate of the air duct 20, the outer side wall of the wind outlet connecting pipe 33 being welded and fixed on the inner side wall of the through hole of the bottom wall plate of the air duct 20, the wind outlet connecting pipe 33 being communicated with the protective sleeve 30, a wind guide fan 34 being fixed on the bottom end of the wind outlet connecting pipe 33, the wind inlet of the wind guide fan 34 facing the bottom end of the wind outlet connecting pipe 33, and the wind outlet of the wind guide fan 34 facing downward. The electrical connection of the driving motor 40 can extend out along the wind outlet connecting pipe 33 and finally extend out of the side through hole formed on the side wall of the bottom of the wind outlet connecting pipe 33.

[0024] A plurality of supporting rods 22 are fixed on the top surface of the top wall plate of the air duct 20, and an upper covering plate 23 is fixed on the top ends of all the supporting rods 22, the upper covering plate 23 covering the top end of the wind inlet connecting pipe 32, having the effect of preventing rain and the like, and preventing the top end of the wind inlet connecting pipe 32 from being blocked, the left and right parts of the upper covering plate 23 being downwardly arc-shaped bent, and the front and rear ends of the upper covering plate 23 being downwardly and obliquely extended.

[0025] Further, a bottom filter screen 1 is fixed at the wind outlet of the wind guide fan 34, covering the wind outlet of the wind guide fan 34.

[0026] Further, the top end of the air inlet connecting pipe 32 is screwed with an upper cover body 35, the top surface of the top plate of the upper cover body 35 is fixed with an upper filter screen 2, the upper filter screen 2 covers the upper middle through hole formed in the middle part of the top plate of the upper cover body 35, and the upper middle through hole is communicated with the air inlet connecting pipe 32. When the upper filter screen 2 covers more sundries, the upper cover body 35 can be disassembled from the top end of the air inlet connecting pipe 32 for cleaning, which is very convenient.

[0027] Further, the rear end of the air duct 20 is communicated with the total air inlet connecting pipe 50, the front end of the air duct 20 is communicated with the front air outlet pipe 60, and the front end of the front air outlet pipe 60 extends obliquely downward and forward.

[0028] Further, the sealing ring is clamped between the front end edge of the total air inlet connecting pipe 50 and the edge of the rear end of the air duct 20, and the sealing ring is clamped between the rear end edge of the front air outlet pipe 60 and the edge of the front end of the air duct 20. The sealing ring has a sealing effect.

[0029] Further, the front end of the front air outlet pipe 60 is fixedly connected with a front total connecting plate 70 through a bolt, the front total connecting plate 70 covers the air outlet of the front end of the front air outlet pipe 60, a plurality of divided air outlet through holes 71 are formed in the front total connecting plate 70, and the divided air outlet through holes 71 are communicated with the front air outlet pipe 60;

[0030] The middle part of the front wall surface of the front total connecting plate 70 is fixedly connected with a front baffle 73 through an adjusting bolt 72, a plurality of air guide through holes 74 are formed in the front baffle 73, the front baffle 73 covers all the divided air outlet through holes 71, and all the air guide through holes 74 are staggered with all the divided air outlet through holes 71.

[0031] Further, the area of the air guide through hole 74 is larger than the area of the divided air outlet through hole 71. The front baffle 73 at the air guide through hole 74 is fixed with a filter screen layer, which covers the air guide through hole 74.

[0032] The shank of the adjusting bolt 72 is inserted into the middle through hole of the front baffle 73 and screwed into the middle screwing through hole of the front total connecting plate 70, the rear wall surface of the rotating part of the adjusting bolt 72 is pressed against the front wall surface of the front baffle 73, and the rear wall surface of the front baffle 73 is pressed against the front wall surface of the front total connecting plate 70.

[0033] In normal use, the air guide through hole 74 at the front baffle 73 is aligned with the corresponding divided air outlet through hole 71, the rear end of the total air inlet connecting pipe 50 is communicated with the air outlet end of the corresponding fire-fighting pipeline, the driving motor 40 is driven to operate to realize smoke exhaust, at the same time, the air guide fan 34 is driven to operate, so that the external air enters the protective sleeve 30 from the air inlet connecting pipe 32, the driving motor 40 is cooled by heat exchange, and then the air is discharged from the air outlet connecting pipe 33;

[0034] When the embodiment is not used for a long time, i.e. the corresponding room is not used, the adjusting bolt 72 can be loosened, the front baffle 73 is rotated, all the air guide through holes 74 are staggered with all the air distribution through holes 71, the baffle 73 covers all the air distribution through holes 71, sealing is realized, and dust and the like are prevented from entering the inside.

[0035] The above only describes the preferred embodiments of the present application, and it should be noted that, for those skilled in the art, without departing from the technical principles of the present application, a number of improvements and refinements can be made, and these improvements and refinements should also be considered as the protection scope of the present application.

Claims

1. A rooftop ventilation fan device for a building fire smoke exhaust system, comprising a mounting base (10) fixed to the roof, and a laterally extending duct (20) mounted on the mounting base (10), characterized in that: The inside of the air duct (20) is provided with a protective sleeve (30), and the drive motor (40) is located in the protective sleeve (30). The front end of the drive motor (40) is fixed to the rear wall of the front end plate of the protective sleeve (30). The front end of the output shaft of the drive motor (40) extends out of the front wall of the front end plate of the protective sleeve (30) and is fixed with an impeller (41). Multiple support feet (31) are fixed on the outer side wall of the protective sleeve (30), and the support feet (31) are welded and fixed to the inner side wall of the air duct (20). An air inlet connecting pipe (32) is connected to the top wall of the protective sleeve (30). The top end of the air inlet connecting pipe (32) extends out of the top end of the through hole of the top wall of the air duct (20). The outer side wall of the air inlet connecting pipe (32) is welded and fixed to the inner side wall of the through hole of the top wall of the air duct (20). The air inlet connecting pipe (32) is connected to the protective sleeve (30). An air outlet connecting pipe (33) is connected to the bottom wall plate of the protective sleeve (30). The bottom end of the air outlet connecting pipe (33) extends out of the bottom end of the through hole of the bottom wall plate of the air duct (20). The outer side wall of the air outlet connecting pipe (33) is welded and fixed to the inner side wall of the through hole of the bottom wall plate of the air duct (20). The air outlet connecting pipe (33) is connected to the protective sleeve (30). A guide fan (34) is fixed at the bottom end of the air outlet connecting pipe (33). The air inlet of the guide fan (34) faces the bottom end of the air outlet connecting pipe (33), and the air outlet of the guide fan (34) faces downward.

2. The rooftop ventilation fan device for a building fire-fighting smoke exhaust system according to claim 1, characterized in that: The air outlet of the air guide fan (34) is fixed with a bottom filter screen (1), which covers the air outlet of the air guide fan (34).

3. A rooftop ventilation fan device for a building fire-fighting smoke exhaust system according to claim 1, characterized in that: The top end of the air inlet connecting pipe (32) is screwed with an upper cover (35). An upper filter screen (2) is fixed on the top surface of the top plate of the upper cover (35). The upper filter screen (2) covers the upper central through hole formed in the middle of the top plate of the upper cover (35). The upper central through hole communicates with the air inlet connecting pipe (32).

4. A rooftop ventilation fan device for a building fire-fighting smoke exhaust system according to claim 1, characterized in that: The rear end of the air duct (20) is connected to the main air inlet connection pipe (50), and the front end of the air duct (20) is connected to the front air outlet pipe (60). The front end of the front air outlet pipe (60) extends downward and forward at an angle.

5. A rooftop ventilation fan device for a building fire-fighting smoke exhaust system according to claim 1, characterized in that: The bottom of the air duct (20) is fixed with lower support connecting feet (21) at the front and rear. The bottom of the lower support connecting feet (21) is fixed to the mounting base (10) by bolts.

6. A rooftop ventilation fan device for a building fire-fighting smoke exhaust system according to claim 4, characterized in that: A sealing ring is clamped between the front end of the main air intake connecting pipe (50) and the rear end of the air duct (20), and a sealing ring is clamped between the rear end of the front air outlet pipe (60) and the front end of the air duct (20).

7. A rooftop ventilation fan device for a building fire-fighting smoke exhaust system according to claim 1, characterized in that: The top surface of the top wall panel of the air duct (20) is fixed with multiple support rods (22), and the upper cover plate (23) is fixed on the top of all the support rods (22). The upper cover plate (23) covers the top of the air inlet connecting pipe (32). The left and right parts of the upper cover plate (23) are bent downward in an arc shape, and the front and rear ends of the upper cover plate (23) extend downward obliquely.

8. A rooftop ventilation fan device for a building fire-fighting smoke exhaust system according to claim 4, characterized in that: The front end of the front air outlet pipe (60) is fixedly connected to the front main connecting plate (70) by bolts. The front main connecting plate (70) covers the air outlet of the front end of the front air outlet pipe (60). The front main connecting plate (70) has a plurality of branch air outlet holes (71) formed on it, and the branch air outlet holes (71) are connected to the front air outlet pipe (60). The front wall of the front main connecting plate (70) is fixedly connected to a front baffle (73) by adjusting bolts (72). The front baffle (73) has multiple air guide holes (74) formed on it. The front baffle (73) covers all the branch air outlet holes (71), and all the air guide holes (74) are staggered from all the branch air outlet holes (71).

9. A rooftop ventilation fan device for a building fire-fighting smoke exhaust system according to claim 8, characterized in that: The area of ​​the air guide hole (74) is larger than the area of ​​the air outlet hole (71).

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