CN212521057U

CN212521057U - Hair drier with air guide inner pipe

Info

Publication number: CN212521057U
Application number: CN202021178165.5U
Authority: CN
Inventors: 叶军忠; 刘玉军
Original assignee: Hangzhou Shuangtuli Technology Co ltd
Current assignee: Best fire technology (Hangzhou) Co.,Ltd.
Priority date: 2020-06-23
Filing date: 2020-06-23
Publication date: 2021-02-12
Anticipated expiration: 2030-06-23

Abstract

The utility model discloses a hair drier with an air guide inner pipe, which comprises an air duct and a handle, wherein the air duct and the handle are fixed into a whole, a motor with fan blades is arranged in the handle, an air inlet is arranged below the handle, and an air inlet channel is arranged in the handle; the air duct comprises an inner air duct and an outer air duct which are coaxially arranged, a first annular air outlet is arranged at the front end of the inner air duct and communicated with an annular cavity between the inner air duct and the outer air duct, and the rear end of the annular cavity is closed; the inner air pipe is internally provided with an air guide inner pipe which is connected with the inner air pipe through a rib; the air guide inner pipe is of a conical structure, a second annular air outlet is formed between the big end of the air guide inner pipe and the front end of the inner air pipe, and an annular air inlet is formed between the small end of the air guide inner pipe and the rear end of the inner air pipe. The utility model discloses utilize the Bernoulli principle, at the inside wind-guiding inner tube that sets up of dryer, except the inlet air duct in the handle, the clearance between interior air duct and the wind-guiding inner tube also becomes for second inlet air duct, under the unchangeable circumstances of motor power, has increased the air output of hair-dryer.

Description

Hair drier with air guide inner pipe

Technical Field

The utility model belongs to the technical field of the hair drying device, in particular to hair-dryer with wind-guiding inner tube.

Background

The hair drier generally includes dryer and handheld part, is equipped with heater strip subassembly in the dryer, is equipped with the motor of taking the fan blade in dryer or the handheld part. When the fan is used, the motor drives the rotor to drive the fan blades to rotate, when the fan blades rotate, air is sucked from the air inlet, and centrifugal airflow formed by the air inlet is blown out from the front end of the air duct. When air passes through, if the heating wires arranged in the air duct are electrified and heated, hot air is blown out of the front end of the air duct; if the heating wire is not electrified to heat, cold air is blown out.

The air blower is mainly used for drying hair, shaping hair and the like, and the air volume and the air speed of the air blower determine the hair drying efficiency. The increase of the air quantity and the wind speed generally needs to increase the power of a motor, so that the fan blade rotates at a high speed, the hair drying efficiency needs to be improved in the mode, however, the noise generated by the high-speed rotation of the fan blade is large, and hidden troubles also exist in the use of a high-power motor.

Disclosure of Invention

The utility model aims at providing a can increase the hair-dryer that has wind-guiding inner tube of the volume of blowing.

Therefore, the technical scheme of the utility model is that: a hair drier with an air guide inner pipe comprises an air duct and a handle, wherein the air duct and the handle are fixed into a whole, a motor with fan blades is arranged in the handle, an air inlet is arranged below the handle, and an air inlet channel is arranged in the handle; the air duct comprises an inner air duct and an outer air duct which are coaxially arranged, the heating wire assembly is arranged in an annular cavity between the inner air duct and the outer air duct, and the annular cavity is communicated with an air inlet channel in the handle; the front end of the inner air pipe is provided with a first annular air outlet which is communicated with an annular cavity between the inner air pipe and the outer air pipe, and the rear end of the annular cavity is closed;

the method is characterized in that: the inner air pipe is internally provided with an air guide inner pipe which is connected with the inner air pipe through a rib; the air guide inner pipe is of a conical structure, the large end is positioned at the front end of the inner air pipe, and the small end is positioned at the rear end of the inner air pipe; and a second annular air outlet is formed between the big head end of the air guide inner pipe and the front end of the inner air pipe, and an annular air inlet is formed between the small head end of the air guide inner pipe and the rear end of the inner air pipe.

Preferably, the area of the second annular air outlet at the front end of the air duct is smaller than that of the annular air inlet at the rear end of the air duct.

Preferably, the inner air pipe consists of an air outlet pipe and a first air pipe, and the air outlet pipe and the first air pipe are connected through an air pipe joint; the tail end of the first air pipe is provided with an annular mounting surface which is fixedly connected with the tail part of the outer air pipe, and the front end of the air outlet pipe and the outer air pipe form a first annular air outlet; the air outlet pipe and the first air pipe are internally provided with a first air guide inner pipe and a second air guide inner pipe respectively, and the rear end of the first air guide inner pipe is connected with the front end of the second air guide inner pipe to form a conical air guide inner pipe.

Preferably, the heating wire assembly comprises a tubular bracket and a heating wire wound on the bracket, and the tubular bracket is sleeved between the air outlet pipe and the outer air pipe; still be equipped with control module between first tuber pipe and the outer tuber pipe, control module and motor, heater strip subassembly electric connection.

During the use, the motor rotates, drives the fan blade for the air gets into from the handle below, in the annular cavity between the inside inlet air channel entering inside handle, outer tuber pipe, via the heater strip, blows off from first annular air outlet. If the heating wire arranged in the air duct is electrified and heated, hot air is blown out of the front end of the air duct; if the heating wire is not electrified to heat, cold air is blown out.

According to Bernoulli's principle: when the flow is equal in height, the flow rate is high, and the pressure is low. When the dryer front end was blown, the velocity of flow of dryer front end air was obviously greater than the velocity of flow of dryer rear end air, just also means, the pressure of dryer front end is little and dryer rear end, then, the air of dryer rear end can flow towards the dryer front end through the annular channel between interior tuber pipe and the wind-guiding inner tube, blows off from second annular air outlet to the air output of increase hair-dryer.

Meanwhile, the air guide inner tube is of a conical structure, the area of the second annular air outlet at the front end is smaller than that of the annular air inlet at the rear end, the area is small, the pressure is high, air enters from the annular air inlet at the rear end, the size of a channel between the inner air pipe and the air guide inner tube gradually decreases, and finally the air flow rate blown out from the second annular air outlet becomes large.

The utility model discloses utilize bernoulli's principle, set up the wind-guiding inner tube in the dryer, except that the inlet channel in the handle, the clearance between inner duct and the wind-guiding inner tube also becomes second inlet channel, make the wind that finally blows off from the dryer front end, except that by the air that motor, fan blade inhaled, through bernoulli's principle, inhale from the dryer rear end in addition, under the unchangeable circumstances of motor power, increased the air output of hair-dryer; and the air flow velocity blown out from the second annular air outlet is increased by the conical air guide inner tube, so that the air output and the air speed of the hair drier are obviously increased, and the hair drying efficiency is greatly improved.

Drawings

The following detailed description is made with reference to the accompanying drawings and embodiments of the present invention

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is an exploded view of the components of the present invention;

fig. 3 is a structural cross-sectional view of the wind barrel of the present invention;

fig. 4 is a schematic structural view of the air outlet pipe of the present invention;

fig. 5 is a schematic structural diagram of the first air duct of the present invention.

Labeled as: the air duct comprises an air duct 1, an outer air duct 11, an air outlet duct 12, a first annular air outlet 121, a first air guiding inner tube 122, a rib 123, a first air duct 13, an annular mounting surface 131, a second air guiding inner tube 132, a rotary buckle 133, an air duct joint 14, a magnetic ring 15, an annular cavity 16, a second air inlet channel 17, a second annular air outlet 18, an annular air inlet 19, a handle 2, an air inlet 21, a heating wire component 3, a tubular support 31, a heating wire 32, a control module 4, a motor 5, a filter screen 6, a cable 7 and a key 8.

Detailed Description

See the drawings. The hair drier of the embodiment comprises an air duct 1 and a handle 2, wherein the air duct 1 and the handle 2 are fixed into a whole; the air duct 1 comprises an inner air duct and an outer air duct 11 which are coaxially arranged, and an annular cavity 16 is formed between the outer wall of the inner air duct and the inner wall of the outer air duct; the inner air pipe consists of an air outlet pipe 12 and a first air pipe 13, the air outlet pipe 12 and the first air pipe are connected through an air pipe joint 14, and the front end of the air outlet pipe 12 is also sleeved with a magnetic ring 15 and is used for being magnetically connected with air blowing nozzles of various shapes; the air outlet pipe 12 and the first air pipe 13 are arranged in the outer air pipe 11, the tail end of the first air pipe 13 is provided with an annular mounting surface 131, and the annular mounting surface 131 is fixedly connected with the tail part of the outer air pipe 11 through a rotary buckle 133, so that the rear end of an annular cavity is closed; the front end of the air outlet pipe 12 is provided with a first annular air outlet 121 which is communicated with the annular cavity 16.

A first air guide inner pipe 122 is arranged inside the air outlet pipe 12 and is connected with the air outlet pipe through three ribs 123, the first air guide inner pipe 122 is of a conical structure, the large end is positioned at the front end of the air outlet pipe, and the small end is positioned at the rear end of the air outlet pipe; inside second wind-guiding inner tube 132 that is equipped with of first tuber pipe 13, second wind-guiding inner tube is the toper structure equally, and the big head end in second wind-guiding inner tube the place ahead corresponds with the little head end size in first wind-guiding inner tube rear, and both can seamless connection, form a complete toper wind-guiding inner tube. The passageway between wind-guiding inner tube and the interior tuber pipe is second inlet air channel 17, is equipped with second annular air outlet 18 between the stub end in first wind-guiding inner tube 122 the place ahead and the tuber pipe 12 front end, is annular air intake 19 between the stub end in second wind-guiding inner tube 132 rear and the first tuber pipe 13 rear end, and the second annular air outlet area of dryer front end is less than the annular air intake of dryer rear end.

The air duct 1 is also internally provided with a heating wire component 3 and a control module 4, the heating wire component 3 comprises a tubular bracket 31 and a heating wire 32 wound on the bracket, and the tubular bracket 31 is sleeved outside the air outlet pipe 12 and is positioned in the annular cavity 16 between the inner air pipe and the outer air pipe; the control module 4 is of an annular structure, is sleeved outside the first air pipe 13 and is electrically connected with the motor and the heating wire assembly.

Handle 2 is 93 degrees with the front end air outlet direction contained angle of dryer 1, and the handle is 3 degrees for the perpendicular line slope of dryer promptly, and towards dryer rear end one side slope, and handle and dryer are not the vertical relation, have 3 degrees slopes, accord with ergonomic, do not tired the hand when using for a long time. The handle is an oval structure, and the handle is more convenient to grasp. A motor 5 is arranged in the handle 2, and the fan blades are arranged on a rotating shaft of the motor; an air inlet 21 is arranged below the handle 2, a filter screen 6 is sleeved at the air inlet, and a cable 7 is arranged below the filter screen 6; an air inlet channel is arranged in the handle 2 and is communicated with an annular cavity 16 in the air duct 1, so that air entering from the lower part of the handle can be blown out from a first annular air outlet; the inner circle wall of the handle is provided with wind guide grooves which are distributed axially, and the motor is arranged in the handle and then limited by the wind guide grooves; the handle 2 is provided with a key 8 which is connected with the control module. The air guide groove on the inner wall of the handle can enable air entering from the lower portion of the handle to move along the groove, meanwhile, the motor can move under the condition of high-speed operation, the air guide groove can be better limited for the motor to drive the fan blades to rotate in a full-force mode, rotation balance is kept, and the air guide groove can serve as a wire groove and is used for placing connecting wires of the motor and the control module.

During the use, the motor rotates, drives the fan blade for the air gets into from the air intake of handle below, and in the annular cavity between the inside air inlet channel of handle entering inside, outer tuber pipe, via the heater strip, blow off from first annular air outlet. If the heating wire arranged in the air duct is electrified and heated, hot air is blown out of the front end of the air duct; if the heating wire is not electrified to heat, cold air is blown out.

Simultaneously, when the dryer front end was blown, the velocity of flow of dryer front end air was obviously greater than the velocity of flow of dryer rear end air, just also means, the pressure of dryer front end is little and dryer rear end, then, the air of dryer rear end flows towards the dryer front end through the second inlet air channel between interior tuber pipe and the wind-guiding inner tube, blows out from second annular air outlet to the air output of increase hair-dryer.

Claims

1. A hair drier with an air guide inner pipe comprises an air duct and a handle, wherein the air duct and the handle are fixed into a whole, a motor with fan blades is arranged in the handle, an air inlet is arranged below the handle, and an air inlet channel is arranged in the handle; the air duct comprises an inner air duct and an outer air duct which are coaxially arranged, the heating wire assembly is arranged in an annular cavity between the inner air duct and the outer air duct, and the annular cavity is communicated with an air inlet channel in the handle; the front end of the inner air pipe is provided with a first annular air outlet which is communicated with an annular cavity between the inner air pipe and the outer air pipe, and the rear end of the annular cavity is closed;

2. A hair dryer with an air guiding inner tube as claimed in claim 1, wherein: and the area of a second annular air outlet at the front end of the air duct is smaller than that of an annular air inlet at the rear end of the air duct.

3. A hair dryer with an air guiding inner tube as claimed in claim 1, wherein: the inner air pipe consists of an air outlet pipe and a first air pipe, and the air outlet pipe and the first air pipe are connected through an air pipe joint; the tail end of the first air pipe is provided with an annular mounting surface which is fixedly connected with the tail part of the outer air pipe, and the front end of the air outlet pipe and the outer air pipe form a first annular air outlet; the air outlet pipe and the first air pipe are internally provided with a first air guide inner pipe and a second air guide inner pipe respectively, and the rear end of the first air guide inner pipe is connected with the front end of the second air guide inner pipe to form a conical air guide inner pipe.

4. A hair dryer with an air guiding inner tube as claimed in claim 3, wherein: the heating wire assembly comprises a tubular bracket and a heating wire wound on the bracket, and the tubular bracket is sleeved between the air outlet pipe and the outer air pipe; still be equipped with control module between first tuber pipe and the outer tuber pipe, control module and motor, heater strip subassembly electric connection.