CN205909373U - Can enlarge hot blast blowpipe apparatus of air inlet scope - Google Patents

Abstract

An air intake device capable of enlarging the range of air intake, comprising a fixed plate and an oil collecting plate installed in it, a number of air guide pipes are uniformly arranged on the periphery of the oil collecting plate, the air guiding pipes are located between the fixed plate and the oil collecting plate and Connect to the smoking port of the fan module. The beneficial effects of the utility model are: 1. The structure is simple, the assembly is convenient, the production cost is low, and the market competitiveness is improved. 2. The unique design of the whirlwind smoking port can make the range hood be accelerated and rotated after entering the air duct, forming a vortex airflow and enhancing its suction capacity. 3. The oil fume passes through the inclined air duct, so that the oil fume can fully contact the inner wall of the air duct, so that the oil can be liquefied on the pipe wall, and the oil and dirt can be separated. 4. The novel appearance design changes the traditional rigid design and fully enhances the user's desire to purchase.

Description

An air intake device capable of enlarging the air intake range

technical field

The utility model relates to a range hood accessory, in particular to an air intake device capable of enlarging the air intake range.

Background technique

The kitchen range hood is one of the widely used household fans, which connects the physical and mental health and interests of millions of users. Usually, the range hood device uses a motor to drive the blades (hour wheel, leaf fan) to rotate, and uses centrifugal force to extract and separate the oil fumes. At present, most of the range hood (fan) blades adopt or imitate the traditional "wheel type (squirrel cage)" impeller or "spiral type" blade (impeller, blade fan) abroad for more than one hundred years. Because most of the blades are planar with short axial stroke, the action time is short, the suction and discharge force is small, and the blade structure does not conform to the principle of three-dimensional vortex force, so the air flow resistance is large and the noise is large, and most of them are difficult (or barely) to meet the national standard for noise control. If the requirement is below 75db, the separation of oil and gas is not complete, and the accumulated oil on the blades is not easy to clean, which affects the service life of the range hood (fan). More seriously, the high noise level affects the physical and mental health of users.

In addition, most of the air inlets of existing range hoods are planar structures. Due to the large area of the air inlets, the relative wind pressure is low, so the smoking ability of the range hood is poor, causing some oil fumes to escape easily, thus affecting the performance of the range hood. smoking efficiency.

Utility model content

The purpose of the utility model is to overcome the shortcomings of the prior art, and provide an air intake device with simple structure, low working noise, strong smoking ability, good oil separation and enlarged air intake range.

The purpose of this utility model is achieved in the following way: an air intake device that can expand the range of air intake, which is characterized in that it includes a fixed plate and an oil collecting plate installed in it, and a number of air guides are uniformly distributed on the periphery of the oil collecting plate The air duct is located between the fixed plate and the oil collecting pan and is connected to the exhaust port of the fan module.

The air inlet of the air guide pipe is waist-shaped, and the air outlet is round pipe-shaped, and the two are excessively connected by a connecting pipe.

A docking plate is provided between the air guide pipe and the fan module, and a docking pipe is provided under the docking plate, and the docking pipe is connected to the air guide pipe so that the air inlet is connected to the smoking port of the fan module.

The angle between the docking pipe and the plane of the docking plate is 30°<a<60°.

The butt joints are arranged obliquely towards the same direction.

The beneficial effects of the utility model are: 1. The structure is simple, the assembly is convenient, the production cost is low, and the market competitiveness is improved. 2. The unique design of the whirlwind smoking port can make the range hood be accelerated and rotated after entering the air duct, forming a vortex airflow and enhancing its suction capacity. 3. The oil fume passes through the inclined air duct, so that the oil fume can fully contact the inner wall of the air duct, so that the oil can be liquefied on the pipe wall, and the oil and dirt can be separated. 4. The novel appearance design changes the traditional rigid design and fully enhances the user's desire to purchase.

Description of drawings

Fig. 1, 2 are the utility model and range hood assembly renderings.

Figures 3 and 4 are cross-sectional views of the structure of the range hood of the present invention after the turbine is hidden.

Fig. 5 is a structural assembly diagram of the utility model.

Fig. 6 is a cross-sectional view of the structure of the utility model.

Fig. 7 is a sectional view of the docking plate structure in the present invention.

Figures 8 and 9 are schematic diagrams of the structure behind the hidden docking plate of the present invention.

Fig. 10 is a schematic diagram of the assembly structure of the utility model.

Fig. 11 is a schematic diagram of the structure of the air guide pipe in the utility model.

detailed description

Below in conjunction with accompanying drawing, the utility model is specifically further described. An air intake device capable of enlarging the range of air intake, characterized in that it includes a fixed plate 1 and an oil collecting pan 2 installed in it, and a number of air guide pipes 3 are evenly distributed on the periphery of the oil collecting plate 2, and the air guide pipes 3 are located at The fixed plate 1 and the oil collecting plate 2 are connected to the suction port 41 of the fan module 4 .

The air inlet 31 of the air guide pipe 3 is in the shape of a waist, and the air outlet 32 is in the shape of a round pipe, and the two are excessively connected by a connecting pipe 33 .

A docking plate 5 is also provided between the air guide pipe 3 and the fan module 4, and a docking pipe 51 is provided below the docking plate 5, and the docking pipe 51 is docked with the air guide pipe 3, so that the air inlet 31 and the fan module 4 are connected to each other. Port 41 is connected.

The angle between the docking pipe 51 and the plane of the docking plate 5 is 30°<a<60°.

The butt joint pipes 51 are arranged obliquely towards the same direction.

working principle

The air inlet device in this case includes a fixed plate 1 and an oil collecting pan 2 installed inside it. A number of air guide pipes 3 are evenly distributed on the periphery of the oil collecting plate 2, and the air guiding pipes 3 are located between the fixed plate 1 and the oil collecting plate 2. And it is connected with the smoking port 41 of the fan module 4; wherein, the air inlet 31 of the air guide pipe 3 is in the shape of a waist, and the air outlet 32 is in the shape of a round tube, and the two are excessively connected by a connecting pipe 33 . Therefore, the air inlet of the air guide pipe is larger than its air outlet, and the air guide pipe is set at a certain angle of inclination. Therefore, when the fan module generates negative pressure to absorb oil fume, the oil fume will enter from the air inlet of multiple air guide pipes, and multiple When the airflow enters the range hood obliquely, as the air duct narrows, the wind speed will be gradually increased, so that the oil fume forms a vortex airflow under the air inlet, which increases the wind pressure of the air inlet of the air guide, making it more effective. Strong smoking ability. In this way, the oily fume in the kitchen cannot spread away from the range hood, ensuring the oil fume removal rate.

In addition, multiple strands of oil fume coming out of the air guide pipe gather at the air inlet of the air guide module, so the oil fume entering the fan module converges in a spiral manner, causing the oil fume to collide with each other and contact the air guide pipe, so that the oil can be released The inside of the air duct is liquefied, which plays the role of oil fume separation.

In addition, compared with the traditional flat or curved shape, the air inlet in this case has a more fashionable and novel shape, which changes the single and rigid image of the traditional range hood, improves users' desire to buy, and thus enhances market competitiveness .

The basic principles and main features of the present utility model and the advantages of the present utility model have been shown and described above. Those skilled in the art should understand that the utility model is not limited by the above-mentioned embodiments. The above-mentioned embodiments and descriptions only illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model The new model also has various changes and improvements, such as the structure of the air duct, the angle of inclination, the number of settings, etc., and these changes and improvements all fall within the scope of the claimed utility model.

Claims (5)

1. a kind of air-intake device expanding air intake scope it is characterised in that: include fixed disk (1) and be arranged on draw-off tray in it (2), draw-off tray (2) periphery uniform array is distributed with some guide ducts (3), and guide duct (3) is located at fixed disk (1) and draw-off tray (2) it is connected between and with the smoking port (41) of blower fan module (4).

2. a kind of air-intake device expanding air intake scope according to claim 1 it is characterised in that: described guide duct (3) air inlet (31) is in waist type shape, and its air outlet (32) is cylindrical, passes through connecting tube (33) between the two and excessively connects.

3. a kind of air-intake device expanding air intake scope according to claim 1 it is characterised in that: described guide duct (3) it is additionally provided with butt plate (5) and between blower fan module (4), below butt plate (5), be additionally provided with butt tube (51), butt tube (51) dock so that air inlet (31) is connected with the smoking port (41) of blower fan module (4) with guide duct (3).

4. a kind of air-intake device expanding air intake scope according to claim 3 it is characterised in that: described butt tube (51) with the interplanar angle of butt plate (5) be 60 ° of 30 ° of ＜ a ＜.

5. a kind of air-intake device expanding air intake scope according to claim 3 it is characterised in that: described butt tube (51) it is obliquely installed in the same direction.