CN206221301U - Unpowered air exhausting device - Google Patents

Abstract

The utility model discloses a kind of unpowered air exhausting device, including baffle plate, fan seat, blower fan and top cover, air inlet is provided with the baffle plate, the fan seat is fixed on air inlet；The blower fan includes flabellum, blower housing, axle and bearing；The blower housing is cylinder unlimited up and down, and the axle is located on the axis of the blower housing, and the bearing holder (housing, cover) can be rotated outside the axle around the axle；One end of the flabellum is fixed on the side of the bearing, and the other end is fixed on the inwall of the blower housing；The flabellum is inclined relative to horizontal setting；The axle is connected to the top of the fan seat vertically, and the top cover is connected to the top of the blower fan by the axle.The utility model has the advantage of：Simple structure, easy for installation, ventilation efficiency is high, dissipation hot gas, increases indoor fresh air, keeps workshop dry and comfortable, without driven by power, saves the electricity charge, reduces noise.

Description

Unpowered exhaust device

technical field

The utility model relates to an exhaust device, in particular to a non-powered exhaust device.

Background technique

Various harmful gases and dust will be produced during the production process in the workshop, which poses great harm to the health of employees; at the same time, due to the heat generated by the operation, the ambient temperature will rise. In order to discharge harmful gases, dust and heat out of the factory building in time, it is necessary to use an exhaust device. The exhaust device driven by electricity consumes a lot of energy, requires a large capital investment, and produces a lot of noise.

Utility model content

The technical problem to be solved by the utility model is to provide a non-powered air exhaust device that can exhaust air without electric drive.

The utility model solves the above-mentioned technical problems through the following technical solutions: the non-powered air exhaust device includes a baffle plate, a fan base, a fan and a top cover, an air inlet is opened on the baffle, and the fan base is fixed on the air inlet place;

The fan includes fan blades, a fan casing, a shaft and bearings; the fan casing is a cylinder open up and down, the shaft is set on the central axis of the fan casing, and the bearing sleeve can be mounted outside the shaft. Rotate around the shaft; one end of the fan blade is fixed on the side of the bearing, and the other end is fixed on the inner wall of the fan housing; the fan blade is arranged obliquely relative to the horizontal plane;

The shaft is vertically connected above the fan seat, and the top cover is connected above the fan base through the shaft.

As an optimized technical solution, there are nine fan blades in total, and the nine fan blades surround one circle of the bearing.

As an optimized technical solution, the fan base includes a base shell and a connecting frame; the base shell is fixed above the air inlet, and its upper opening communicates with the air inlet below; the connecting frame is fixed on the base shell Inside, the fan is connected to the connecting frame through the shaft.

As an optimized technical solution, the air inlet is circular, and the shell of the machine base is a cylinder matched with the air inlet.

As an optimized technical solution, the baffle is installed obliquely on the skylight of the sloping roof, and the lower part of the housing of the machine base is equipped with an inclined air inlet, and its top plane is parallel to the horizontal plane.

As an optimized technical solution, the lower part of the connecting frame is a fixed strip that intersects to form a cross, and the four ends of the fixed strip are connected to the inner wall of the base shell, and the intersections are located on the central axis of the base shell ; The intersection of the fixing strips is fixed with a vertically upward connecting rod, and the fan is connected above the fan seat through the threading of the lower end of the shaft and the connecting rod.

As an optimized technical solution, the top cover includes a cover body and a connecting piece, the cover body is in the shape of an umbrella, and the connecting piece is fixed at the center below the umbrella surface, through the connection between the connecting piece and the upper end of the shaft. The sleeve connects the top cover above the blower.

As an optimized technical solution, the baffle is rectangular, and an air inlet is opened on one side of the baffle, and a light-transmitting window is provided on the other side.

As an optimized technical solution, the transparent window adopts plexiglass.

As an optimized technical solution, the baffle, fan base, fan blades, fan casing and top cover are all made of steel plates.

The utility model has the advantages of simple structure, convenient installation, high exhaust efficiency, exhaust heat, increase indoor fresh air, keep the workshop dry, no need for electric drive, save electricity costs, and reduce noise.

Description of drawings

Fig. 1 is a schematic structural view of the non-powered air exhaust device of the present invention.

Fig. 2 is a structural schematic diagram of the bottom plate and the fan seat of the non-powered exhaust device of the present invention.

Fig. 3 is a schematic diagram of the structure of the fan connected to the fan seat of the non-powered exhaust device of the present invention.

Fig. 4 is a schematic front view of the fan of the utility model.

Fig. 5 is a schematic front view of the top cover of the utility model.

detailed description

As shown in Figure 1-5, the unpowered exhaust device includes a baffle plate 1, a fan base 2, a fan 3 and a top cover 4.

The baffle plate 1 is rectangular and installed obliquely on the skylight of the sloping roof. There is a circular air inlet on the right side of the baffle plate 1, and a rectangular light-transmitting window 5 of 1500mm*1000mm on the left side. The window glass is made of plexiglass to prevent breakage. crack.

The fan base 2 includes a base shell 21 and a connecting frame 22 .

The base shell 21 is a cylinder matched with the air inlet, fixed on the top of the air inlet, and its upper opening communicates with the air inlet below; the bottom of the base shell 21 matches the inclined air inlet, and its top plane is parallel to the horizontal plane.

The bottom of connecting frame 22 is the steel bar fixing bar that intersects to form a cross, and the four ends of fixing bar connect the inner wall of machine base shell 21, and its intersection is positioned on the central axis of machine base shell 21; There are vertically upward steel connecting rods.

The fan 3 includes a fan blade 31 , a fan casing 32 , a shaft 33 and a bearing 34 .

The blower casing 32 is a cylinder opened up and down, the shaft 33 is arranged on the central axis of the blower casing 32, and the bearing 34 is sleeved outside the shaft 33 and can rotate around the shaft 33.

One end of the fan blade 31 is welded to the side of the bearing 34, and the other end is welded to the inner wall of the fan housing 32;

The top cover 4 includes a cover body 41 and a connecting piece 42 .

The cover body 41 is in the shape of an umbrella, and the connecting piece 42 is fixed at the center below the umbrella.

The fan 3 is connected directly above the fan base 2 through the threading of the lower end of the shaft 33 and the connecting rod of the connecting frame 22 , and the cross-sectional area of the fan 3 is equal to the top surface area of the base shell 21 .

The top cover 4 is connected directly above the blower fan 3 through the connecting piece 42 of the top cover 4 and the threading of the upper end of the shaft 33. The bottom area of the top cover 4 is greater than the top surface area of the base shell 21 to prevent rainwater from infiltrating into the factory building in rainy weather.

The connecting rod of the connecting frame 22 and the connecting piece 42 of the top cover 4 can be hollow sleeves, and the shafts 33 are connected by being inserted in the connecting rod of the connecting frame 22 and the connecting piece 42 of the top cover 4 respectively.

The shaft 33 can be a hollow sleeve, and the connecting rods of the connecting frame 22 and the connectors of the top cover 4 are respectively connected by being inserted in the shaft 33 .

The baffle plate 1, the base housing 21, the fan blade 31, the fan housing 32 and the cover 41 are all made of steel plates.

The unpowered exhaust device is installed on the skylight at the top of the factory building. Using the principle of indoor and outdoor air convection, the horizontal fan 3 can accelerate the air flow in any parallel direction and transform it into a vertical air flow from bottom to top to This is to achieve the purpose of ventilation. As long as there is a breeze or there is a slight temperature difference between indoor and outdoor, the fan 3 can operate lightly and effectively to dissipate heat, increase indoor fresh air, extract moisture, mildew, and steam from the workshop, and keep the workshop dry.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present utility model shall be included in the present utility model. within the scope of the new protection.

Claims (10)

1. a kind of unpowered air exhausting device, it is characterised in that：Including baffle plate (1), fan seat (2), blower fan (3) and top cover (4), institute State and air inlet is provided with baffle plate (1), the fan seat (2) is fixed on air inlet；

The blower fan (3) includes flabellum (31), blower housing (32), axle (33) and bearing (34)；The blower housing (32) is The cylinder for opening wide up and down, the axle (33) is located on the axis of the blower housing (32), and the bearing (34) is enclosed within institute State and can be rotated around the axle (33) outside axle (33)；One end of the flabellum (31) is fixed on the side of the bearing (34), separately One end is fixed on the inwall of the blower housing (32)；The flabellum (31) is inclined relative to horizontal setting；

The axle (33) is connected to the top of the fan seat (2) vertically, and the top cover (4) is connected to institute by the axle (33) State the top of blower fan (3).

2. unpowered air exhausting device as claimed in claim 1, it is characterised in that：The flabellum (31) totally nine, nine flabellums (31) around a circle of the bearing (34).

3. unpowered air exhausting device as claimed in claim 1, it is characterised in that：The fan seat (2) is including machine base outer shell And link (22) (21)；The machine base outer shell (21) is fixed on the top of air inlet, the air inlet below its connection suitable for reading；Institute State link (22) to be fixed in the machine base outer shell (21), the blower fan (3) is connected to the connection by the axle (33) On frame (22).

4. unpowered air exhausting device as claimed in claim 3, it is characterised in that：Air inlet is circle, the machine base outer shell (21) it is the cylinder that is engaged with air inlet.

5. unpowered air exhausting device as claimed in claim 4, it is characterised in that：The baffle plate (1) is inclined and mounted on pitched roof Skylight on, the bottom of the machine base outer shell (21) coordinates inclined air inlet, and its top planes is parallel to horizontal plane.

6. unpowered air exhausting device as claimed in claim 3, it is characterised in that：The bottom of the link (22) is to intersect Criss-cross fixed strip, four ends of fixed strip connect the inwall of the machine base outer shell (21), and its infall is located at the machine On the axis of seat shell (21)；The infall of fixed strip is fixed with connecting rod straight up, by the axle (33) lower end With the top that makes the blower fan (3) be connected to the fan seat (2) of wearing of connecting rod.

7. unpowered air exhausting device as claimed in claim 1, it is characterised in that：The top cover (4) is including lid (41) and even Fitting (42), the lid (41) is umbrella cover shape, and the connector (42) is fixed on umbrella cover centrally under, by the connection Part (42) and the axle (33) upper end wear the top for making the top cover (4) be connected to the blower fan (3).

8. unpowered air exhausting device as claimed in claim 1, it is characterised in that：The baffle plate (1) is rectangle, the baffle plate (1) while being provided with air inlet on, another side is provided with light inlet window (5).

9. unpowered air exhausting device as claimed in claim 8, it is characterised in that：The light inlet window (5) uses lucite.

10. unpowered air exhausting device as claimed in claim 1, it is characterised in that：The baffle plate (1), fan seat (2), flabellum (31), blower housing (32) and top cover (4) use steel plate.