CN212774854U

CN212774854U - Roof exhaust system

Info

Publication number: CN212774854U
Application number: CN202021443824.3U
Authority: CN
Inventors: 欧叶春
Original assignee: Guangzhou Fangyuan Ventilation Equipment Co ltd
Current assignee: Guangzhou Fangyuan Ventilation Equipment Co ltd
Priority date: 2020-07-21
Filing date: 2020-07-21
Publication date: 2021-03-23
Anticipated expiration: 2030-07-21

Abstract

The utility model provides a roof ventilation system, which comprises a base, an air duct, an open hood and an air outlet adjusting unit; the base is provided with a vent hole, the vent hole is connected with an air duct, a motor is arranged in the air duct, an output shaft of the motor is provided with fan blades, the inner top surface of the open air cap is circumferentially and uniformly provided with downwardly extending sleeves, and the upper end part of the air duct is provided with rod bodies which are in one-to-one insertion fit with the sleeves; the air outlet regulating unit includes driving piece, screw rod, end cap and fixed screen cloth, and the driving piece sets firmly in the outer top surface of uncovered hood, the upper end of screw rod fixed wear to locate uncovered hood top surface and with the output rigid coupling of driving piece, the lower extreme of screw rod stretch into in the dryer and the rigid coupling have the end cap, fixed screen cloth sets firmly in the upper end of dryer, this fixed screen cloth have with the screw of the rotatable complex of screw rod. This roof exhaust system, because fixed screen sleeve sets firmly on the dryer, driving piece and uncovered hood fixed connection, the driving piece operation drives the rotatory uncovered hood that makes of screw rod and goes up and down, realizes that the air outlet size is adjustable.

Description

Roof exhaust system

Technical Field

The utility model relates to a roof convulsions technical field, concretely relates to roof exhaust system.

Background

The roof fan can be used for air exhaust and ventilation of the roof of a building, and is installed on the roof to accelerate the volatilization of hot air to achieve the effects of ventilation and cooling by utilizing the natural principle that indoor hot air flow rises and cold air falls.

The roof fan in the prior art is generally structured by a circular wind barrel, an open wind cap arranged above the wind barrel, a motor fixed in the circular wind barrel, an impeller arranged on an output shaft of the motor, and the motor driving the impeller to exhaust air in a building. The prior art has the following defects when the wind machine is used:

1. the size of clearance (being the air outlet) between hood and the dryer generally is unable regulation, and some types of roof fan are equipped with the screw rod reservation quantity at the dryer and then can adjust the screw rod position slightly in order to change the air outlet size, but if will adjust then will independently adjust the mounted position of screw rod at the dryer, and a plurality of screws still need to adjust open hood after adjusting respectively and make its axis and dryer concentric, and the process is loaded down with trivial details.

2. In the working process of the fan, the motor generates certain noise and is not suitable for the environment requiring low noise.

SUMMERY OF THE UTILITY MODEL

To the defect among the prior art, the utility model provides a roof exhaust system convenient to adjust air outlet size.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a roof ventilation system comprises a base, a wind barrel and an open wind cap, wherein a ventilation hole is formed in the center of the base, the wind barrel is connected to the ventilation hole, a motor is arranged in the wind barrel, a fan blade is arranged on an output shaft of the motor, and the roof ventilation system also comprises an air outlet adjusting unit;

at least two sleeves extending downwards are uniformly arranged on the inner top surface of the open hood in the circumferential direction, and rod bodies which are in one-to-one insertion fit with the sleeves are arranged at the upper end part of the air duct;

the air outlet regulating unit includes driving piece, screw rod, end cap and fixed screen cloth, the driving piece sets firmly in the outer top surface of uncovered hood, uncovered hood inboard is located to the main part of screw rod, the upper end of screw rod fixed wear to locate uncovered hood top surface and with the output rigid coupling of driving piece, the lower extreme of screw rod stretches into in the dryer and the rigid coupling has the end cap, fixed screen cloth sets firmly in the upper end of dryer, the center of this fixed screen cloth have with the screw of the rotatable complex of screw rod screw.

Based on above-mentioned roof exhaust system, when adjusting the size of air outlet, the driving piece operation drives the screw rod rotatory, because fixed net cover sets firmly on the dryer, driving piece and uncovered hood fixed connection drive uncovered hood when the driving piece is rotatory and go up and down, realize that the air outlet size is adjustable.

In order to better implement the above solution, preferably, the fixed net cover includes an outer connecting ring, an inner threaded ring, and a plurality of connecting rods connecting an inner wall of the outer connecting ring and an outer wall of the inner threaded ring.

Preferably, the inner wall of the air duct is provided with a ring groove, and sound absorption cotton and a porous hard board are arranged in the ring groove from inside to outside.

Preferably, a spring is fixedly arranged on the inner top surface of the sleeve, and the upper end surface of the rod body abuts against the lower end part of the spring.

Preferably, the upper end of the rod body is a circular arc end.

Preferably, the hand of the drive member screws the rod.

Preferably, the number of the sleeves is four, and the sleeves are distributed in a rectangular shape.

Preferably, a sealing structure is arranged at the joint of the driving piece and the open hood.

Preferably, seal structure includes metal overcoat and rubber packing ring, the terminal surface welding is at the outer top surface of uncovered hood under the metal overcoat, and the annular has been seted up to the up end of metal overcoat, the rubber packing ring is located in the annular and is connected with the driving piece.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

Fig. 1 is a schematic structural diagram of a roof ventilation system according to this embodiment;

fig. 2 is a schematic structural view of the open hood of fig. 1.

Reference numerals:

the fan comprises a base 1, an air duct 2, an installation block 201, an open hood 3, a motor 4, fan blades 5, a sleeve 6, a rod body 7, a driving piece 8, a screw 9, an end cap 10, a fixed net sleeve 11, an outer connecting ring 111, an inner thread ring 112, a connecting rod 113, sound-absorbing cotton 12, a porous hard plate 14, a metal outer sleeve 15 and a rubber gasket 16.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

Referring to fig. 1 to 2, the present embodiment discloses a roof ventilation system, which includes a base 1, an air duct 2, an open hood 3, a motor 4, a fan blade 5, and an air outlet adjusting unit.

The center of the base 1 is provided with a ventilation hole, the lower end of the air duct 2 is fixedly arranged in the ventilation hole, a motor 4 is arranged in the air duct 2, and an output shaft of the motor 4 is provided with a fan blade 5.

In the installation process, a motor supporting frame can be horizontally and fixedly connected in the air duct 2, the motor 4 is fixedly arranged on the motor supporting frame, and the motor supporting frame is preferably of a cross structure or a Chinese character mi structure.

In this embodiment, the interior top surface circumference of uncovered hood 3 evenly is equipped with two at least downwardly extending's sleeve pipes 6, and the upper end of dryer 2 is equipped with the body of rod 7 of inserting the cooperation one by one with sleeve pipe 6, and preferably, sleeve pipe 6 is four, and is rectangular distribution, and the body of rod 7 is also four this moment, and is apart from the shape distribution.

In this embodiment, for making sleeve 6 be close to the edge of the interior top surface of open hood 3, can set up three radially extending's installation piece 201 in the border department of dryer 2 up end, the body of rod 7 sets firmly on installation piece 201.

In this embodiment, the air outlet regulating unit includes driving piece 8, screw rod 9, end cap 10 and fixed screen cloth 11, driving piece 8 is installed in uncovered hood 3's outer top surface, uncovered hood 3 inboard is located to the main part of screw rod 9, and the upper end of screw rod 9 is fixed wear to locate uncovered hood 3 top surface and with the output rigid coupling of driving piece 8, and the lower extreme of screw rod 9 stretches into in dryer 2 and the rigid coupling has end cap 10, fixed screen cloth 11 sets firmly in the upper end of dryer 2, and this fixed screen cloth 11's center has the screw with the rotatable complex of screw rod 9.

When adjusting the size of air outlet, driving piece 8 moves and drives screw rod 9 rotatory, because fixed screen cloth 11 sets firmly on dryer 2, driving piece 8 and uncovered hood fixed connection drive uncovered hood 3 and go up and down when driving piece 8 is rotatory, realize that the air outlet size is adjustable.

In the present embodiment, since the driving member 8 is exposed and used for a limited number of times, the driving member 8 is preferably a hand-screwed rod, which is low in cost and economical.

In this embodiment, the interior top surface of sleeve 6 has set firmly spring 14, the up end of the body of rod 7 is contradicted at the lower tip of spring 14, sets up spring 14, and when uncovered hood 3 rose, can play the effect of boosting, when uncovered hood 3 descended, can play the effect of reverse thrust, and the messenger uncovered hood rose and descend required effort and be close the same.

In this embodiment, the upper end of the rod 7 is a circular arc end.

In this embodiment, the annular has been seted up to the inner wall of dryer 2, sound cotton 12 and porous hardboard 13 have been inhaled to installed from inside to outside in the annular, and the noise diffusion of motor pivoted production is to porous hardboard 13 department, and the transmission is inhaled cotton 12 and is inhaled the noise to inhaling through porous hardboard 13, helps reducing roof exhaust system's noise.

The junction of driving piece 8 and uncovered hood 3 is equipped with seal structure, and seal structure includes metal overcoat 15 and rubber packing ring 16, terminal surface welding is in the outer top surface of uncovered hood 3 under the metal overcoat 15, and the annular has been seted up to the up end of metal overcoat 15, rubber packing ring 16 locates in the annular and is connected with driving piece 8. The sealing structure can avoid water leakage at the joint of the driving piece 8 and the open hood 3, and the safe use of the motor 4 is ensured.

The utility model provides a pair of roof exhaust system, through the size of addding the adjustable air outlet of air outlet regulating unit, during the regulation, rotary driving piece 8 can drive uncovered hood 3 and move up, and its simple structure, sexual valence relative altitude install inhale sound cotton 12 and porous hardboard 13, can absorb the noise that partial motor 4 and fan blade 5 produced, make roof exhaust system satisfy the low noise demand.

In the description of the present invention, numerous specific details are set forth, however, it can be appreciated that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.

Claims

1. The utility model provides a roof exhaust system, includes base (1), dryer (2) and uncovered hood (3), the center of base (1) has the ventilation hole, ventilation hole department is connected with dryer (2), built-in motor (4) that are equipped with in dryer (2), fan blade (5), its characterized in that have been installed to the output shaft of motor (4): the air outlet adjusting unit is also included;

at least two sleeves (6) extending downwards are uniformly arranged on the inner top surface of the open hood (3) in the circumferential direction, and rod bodies (7) which are in one-to-one insertion fit with the sleeves (6) are arranged at the upper end part of the air duct (2);

the air outlet regulating unit comprises a driving piece (8), a screw rod (9), an end cap (10) and a fixed net sleeve (11), the driving piece (8) is installed on the outer top surface of the open hood (3), the main body of the screw rod (9) is arranged on the inner side of the open hood (3), the upper end of the screw rod (9) is fixedly arranged on the top surface of the open hood (3) and fixedly connected with the output end of the driving piece (8), the lower end of the screw rod (9) extends into the air duct (2) and is fixedly connected with the end cap (10), the fixed net sleeve (11) is fixedly arranged on the upper end portion of the air duct (2), and a screw hole which is matched with the screw rod (9) in a rotating mode is formed in the center of the fixed net sleeve.

2. The roof ventilation system of claim 1, wherein: the fixed net sleeve (11) comprises an outer connecting ring (111), an inner thread ring (112) and a plurality of connecting rods (113) which are connected with the inner wall of the outer connecting ring (111) and the outer wall of the inner thread ring (112).

3. The roof ventilation system of claim 1, wherein: the inner wall of the wind barrel (2) is provided with a ring groove, and sound absorption cotton (12) and a porous hard plate (13) are arranged in the ring groove from inside to outside.

4. The roof ventilation system of claim 1, wherein: the inner top surface of the sleeve (6) is fixedly provided with a spring (14), and the upper end surface of the rod body (7) is abutted against the lower end part of the spring (14).

5. The roof ventilation system of claim 4, wherein: the upper end part of the rod body (7) is an arc end.

6. The roof ventilation system of claim 1, wherein: the hand of the drive element (8) is screwed.

7. The roof ventilation system of claim 1, wherein: the number of the sleeves (6) is four, and the sleeves are distributed in a rectangular shape.

8. The roof ventilation system of claim 1, wherein: and a sealing structure is arranged at the joint of the driving piece (8) and the open hood (3).

9. The roof ventilation system of claim 8, wherein: the sealing structure comprises a metal outer sleeve (15) and a rubber gasket (16), wherein the lower end face of the metal outer sleeve (15) is welded on the outer top face of the open hood (3), an annular groove is formed in the upper end face of the metal outer sleeve (15), and the rubber gasket (16) is arranged in the annular groove and connected with the driving piece (8).