Low-noise fireproof fan

Abstract

The utility model discloses a low noise fireproof fan relates to fan technical field, including bottom foot, also including rotating rod and baffle plate, the top end of bottom foot is equipped with the outer casing, and the inside of outer casing is equipped with the inner casing, the outer side of inner casing is sleeved with sound insulation cotton, and the outer side of sound insulation cotton is sleeved with fireproof cotton, and the baffle plate is equipped with the baffle plate. A driving motor is vertically installed in the inner shell, fan blades are installed at the output end of the driving motor, ventilation pipes are installed on the two sides of the outer shell, rotating rods are installed on one sides of the interiors of the ventilation pipes through rotating shafts, driven wheels are installed at one ends of the rotating rods, and a plurality of shielding plates are installed on the outer walls of the rotating rods. Mounting plates are mounted on the two sides of the bottom end of the outer shell correspondingly. The rotating rod is driven by the driven wheel to rotate, the shielding plate is driven by the rotating rod to rotate, the opening of the ventilation pipe is blocked through the shielding plate, the ventilation pipe is blocked through the structure, and external dust can be effectively isolated.

Description

Technical Field

[0001] The utility model relates to the technical field of fans, in particular to a low-noise fireproof fan. Background Art

[0002] A fan is a machine that relies on input mechanical energy to increase gas pressure and discharge gas. It is a driven fluid machine. Fan is China's customary abbreviation for gas compression and gas delivery machinery. Commonly referred to fans include ventilators, blowers, wind turbines, and fans are widely used in ventilation, dust removal and cooling of factories, mines, tunnels, cooling towers, vehicles, ships and buildings, ventilation and air induction of boilers and industrial furnaces, cooling and ventilation in air conditioning equipment and household appliances; drying and selection of grains, wind tunnel wind sources and inflation and propulsion of hovercraft, etc.

[0003] The traditional fan has the advantages of simple structure and easy use, but it still has its shortcomings. During the use of the traditional fan, if the fan is stopped, the external dust is easy to enter the inside of the fan. Utility Model Content

[0004] The utility model aims to provide a low-noise fireproof fan to solve the problem that external dust easily enters the interior of the fan as mentioned in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a low-noise fireproof fan, including a base, a rotating rod and a shielding plate;

[0006] An outer shell is installed at the top of the base foot, and an inner shell is installed inside the outer shell, the outer side of the inner shell is sleeved with sound insulation cotton, and the outer side of the sound insulation cotton is sleeved with fireproof cotton, a driving motor is vertically installed inside the inner shell, and a fan blade is installed at the output end of the driving motor, ventilation pipes are installed on both sides of the outer shell, and a rotating rod is installed on one side inside the ventilation pipe through a rotating shaft, a driven wheel is installed at one end of the rotating rod, and a plurality of baffles are installed on the outer wall of the rotating rod, mounting plates are installed on both sides of the bottom end of the outer shell, and a driven rotating rod is installed on one side of the mounting plates close to each other through a rotating shaft, a driving wheel is installed on the outer wall of the driven rotating rod, and a transmission belt is connected between the driving wheel and the driven wheel, a driven gear is installed on the end of the driven rotating rod close to each other, and a driving rotating rod is installed at the middle position of the bottom end of the outer shell through a rotating shaft, a driving gear is installed on the outer wall of the driving rotating rod, and a knob is installed at the bottom end of the driving rotating rod.

[0007] Preferably, one end of the ventilation pipe passes through the outer shell and the inner shell in sequence, and one end of the ventilation pipe extends to one side of the inner shell.

[0008] Preferably, one end of the rotating rod extends to the interior of the inner shell, and the shielding plates match the ventilation pipes.

[0009] Preferably, the driving gear is located below the driven gear, and the driving gear and the driven gear are meshed with each other.

[0010] Compared with the prior art, the beneficial effects of the utility model are as follows: the noise inside the fan can be isolated by the action of the sound insulation cotton, and the high temperature of the outside world can be effectively isolated by the action of the fireproof cotton. If the fan stops running, the staff can turn the knob to drive the driving rod to rotate, and the driving rod drives the driving gear to rotate. Since the driving gear and the driven gear are meshed with each other, the driving gear can drive the driven gear to rotate, and the driven gear can drive the driven rod to rotate, and the driven rod can drive the driving wheel to rotate. Since a transmission belt is connected between the driving wheel and the driven wheel, the driving wheel can drive the driven wheel to rotate, and the driven wheel drives the rotating rod to rotate, and the rotating rod drives the baffle to rotate, and the baffle blocks the opening of the ventilation duct. This structure achieves the blocking of the ventilation duct and can effectively isolate external dust. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0012] Figure 2 It is a side cross-sectional structural schematic diagram of the utility model;

[0013] Figure 3 It is a side view structural schematic diagram of the ventilation pipe of the utility model;

[0014] Figure 4 It is a side structural schematic diagram of the shielding plate of the utility model.

[0015] In the figure: 1. base; 2. driven rotating rod; 3. driven gear; 4. driving gear; 5. knob; 6. driving gear; 7. driving wheel; 8. mounting plate; 9. outer shell; 10. ventilation duct; 11. rotating rod; 12. fan blades; 13. sound insulation cotton; 14. fireproof cotton; 15. driving motor; 16. inner shell; 17. driven wheel; 18. shielding plate; 19. transmission belt. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] Example 1: Please refer to Figure 1-4 , a low noise fireproof fan, comprising a base 1, a rotating rod 11 and a shielding plate 18;

[0018] An outer shell 9 is installed at the top of the foot 1, and an inner shell 16 is installed inside the outer shell 9, a sound insulation cotton 13 is sleeved on the outer side of the inner shell 16, and a fireproof cotton 14 is sleeved on the outer side of the sound insulation cotton 13, a driving motor 15 is vertically installed inside the inner shell 16, and a fan blade 12 is installed at the output end of the driving motor 15, ventilation pipes 10 are installed on both sides of the outer shell 9, and a rotating rod 11 is installed on one side of the ventilation pipe 10 through a rotating shaft, a driven wheel 17 is installed at one end of the rotating rod 11, and the outer wall of the rotating rod 11 is provided with a rotating shaft. A plurality of shielding plates 18 are installed, mounting plates 8 are installed on both sides of the bottom end of the outer shell 9, and driven rotating rods 2 are installed on the sides of the mounting plates 8 close to each other through a rotating shaft, driving wheels 7 are installed on the outer walls of the driven rotating rods 2, and a transmission belt 19 is connected between the driving wheel 7 and the driven wheel 17, and driven gears 3 are installed on the ends of the driven rotating rods 2 close to each other, and a driving rotating rod 6 is installed at the middle position of the bottom end of the outer shell 9 through a rotating shaft, a driving gear 4 is installed on the outer wall of the driving rotating rod 6, and a knob 5 is installed at the bottom end of the driving rotating rod 6;

[0019] One end of the ventilation pipe 10 passes through the outer shell 9 and the inner shell 16 in sequence, and one end of the ventilation pipe 10 extends to one side of the inner shell 16;

[0020] One end of the rotating rod 11 extends to the inside of the inner shell 16, and the shielding plate 18 matches the ventilation pipe 10;

[0021] The driving gear 4 is located below the driven gear 3, and the driving gear 4 and the driven gear 3 are meshed with each other;

[0022] Specifically, Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, when the mechanism is used, the driving wheel 7 can drive the driven wheel 17 to rotate, and the driven wheel 17 drives the rotating rod 11 to rotate, and the rotating rod 11 drives the shielding plate 18 to rotate, and the shielding plate 18 blocks the opening of the ventilation pipe 10.

[0023] Working principle: The noise inside the fan can be isolated by the sound insulation cotton 13, and the high temperature outside can be effectively isolated by the fireproof cotton 14. If the fan stops running, the staff can turn the knob 5 to drive the driving rod 6 to rotate, and the driving rod 6 drives the driving gear 4 to rotate. Since the driving gear 4 and the driven gear 3 are meshed with each other, the driven gear 3 can be driven to rotate by the driving gear 4, and the driven rod 2 can be driven to rotate by the driven gear 3, and the driving wheel 7 can be driven to rotate by the driven rod 2. Since a transmission belt 19 is connected between the driving wheel 7 and the driven wheel 17, the driven wheel 17 can be driven to rotate by the driving wheel 7, and the rotating rod 11 can be driven to rotate by the driven wheel 17, and the baffle 18 can be driven to rotate by the rotating rod 11, and the opening of the ventilation pipe 10 is blocked by the baffle 18.

[0024] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A low noise fireproof fan, comprising a foot (1), characterized in that: It also includes a rotating rod (11) and a shielding plate (18); An outer shell (9) is installed at the top of the base (1), and an inner shell (16) is installed inside the outer shell (9); a sound insulation cotton (13) is sleeved on the outer side of the inner shell (16), and a fireproof cotton (14) is sleeved on the outer side of the sound insulation cotton (13); a driving motor (15) is vertically installed inside the inner shell (16), and a fan blade (12) is installed at the output end of the driving motor (15); ventilation pipes (10) are installed on both sides of the outer shell (9), and a rotating rod (11) is installed on one side of the ventilation pipe (10) through a rotating shaft, and a driven wheel (17) is installed on one end of the rotating rod (11), and the outer side of the rotating rod (11) is provided with a rotating shaft. A plurality of shielding plates (18) are installed on the wall, mounting plates (8) are installed on both sides of the bottom end of the outer shell (9), and a driven rotating rod (2) is installed on the side of the mounting plates (8) close to each other through a rotating shaft, a driving wheel (7) is installed on the outer wall of the driven rotating rod (2), and a transmission belt (19) is connected between the driving wheel (7) and the driven wheel (17), a driven gear (3) is installed on the end of the driven rotating rod (2) close to each other, and a driving rotating rod (6) is installed at the middle position of the bottom end of the outer shell (9) through a rotating shaft, a driving gear (4) is installed on the outer wall of the driving rotating rod (6), and a knob (5) is installed at the bottom end of the driving rotating rod (6).

2. A low noise fireproof fan according to claim 1, characterized in that: One end of the ventilation pipe (10) passes through the outer shell (9) and the inner shell (16) in sequence, and one end of the ventilation pipe (10) extends to one side inside the inner shell (16).

3. A low noise fireproof fan according to claim 1, characterized in that: One end of the rotating rod (11) extends to the interior of the inner shell (16), and the shielding plate (18) matches the ventilation pipe (10).

4. A low noise fireproof fan according to claim 1, characterized in that: The driving gear (4) is located below the driven gear (3), and the driving gear (4) and the driven gear (3) are meshed with each other.

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