CN216922552U

CN216922552U - High-flow blower

Info

Publication number: CN216922552U
Application number: CN202122915510.XU
Authority: CN
Inventors: 黄应杰
Original assignee: Ningbo Cheery Garden Tools Co ltd
Current assignee: Ningbo Cheery Garden Tools Co ltd
Priority date: 2021-11-25
Filing date: 2021-11-25
Publication date: 2022-07-08
Anticipated expiration: 2031-11-25

Abstract

The utility model discloses a high-flow blower, comprising a shell, an impeller and a motor, wherein the shell is internally provided with a volute part, the volute part is provided with an air inlet and an air outlet, the motor is used for driving the impeller accommodated in the volute part to rotate so as to compress fluid flowing through the air inlet and pump the fluid to the air outlet, the shell is provided with a trigger assembly, a fluid increasing pipe is arranged at the position of the shell corresponding to the air outlet, the fluid increasing pipe comprises an outer cylinder part, an expanding part, a reducing part and a mounting part, the fluid increasing pipe is connected with the shell through the mounting part, the reducing part is connected with the mounting part, the inner wall of the reducing part is contracted along the spraying direction of the fluid, the reducing part is connected with the expanding part through a connecting wall, the inner wall of the expanding part is expanded outwards along the opposite direction of the spraying direction of the fluid, an air inlet flow channel is formed between the inner wall of the expanding part and the outer wall of the reducing part, the outer cylinder part is connected with the expanding part, through the arrangement, the cleaning efficiency of the hair dryer is improved, and fallen leaves, grass, dust and other sundries can be quickly blown off and cleaned.

Description

High-flow blower

Technical Field

The utility model relates to the technical field of hair dryers, in particular to a high-flow hair dryer.

Background

The hair dryer is an electric tool which is necessary for environmental care in daily life, and is used for blowing off outdoor fallen leaves, broken grass and other dust and sundries, but the air inlet volume of the existing hair dryer is small in unit time, and the corresponding jet flow volume of the hair dryer is relatively small, so that the cleaning efficiency of the hair dryer is low, and the fallen leaves, the broken grass, the dust and other sundries cannot be blown off and cleaned quickly.

Disclosure of Invention

The utility model aims to provide a high-flow blower.A fluid increasing pipe is additionally arranged at a position of a shell corresponding to an air outlet, according to the principle of a venturi tube, in the high-speed jet process of fluid, air around an air inlet flow channel is converged into the fluid increasing pipe through the air inlet flow channel under the action of atmospheric pressure to be mixed with air sprayed out of a volute so as to increase the jet flow, the cleaning efficiency of the blower is improved, and fallen leaves, grass, dust and other impurities can be quickly blown and cleaned.

The technical purpose of the utility model is realized by the following technical scheme: a high-flow blower comprises a shell, an impeller and a motor, wherein a volute part is arranged in the shell, the volute part is provided with an air inlet and an air outlet which are communicated with the outside of the shell, the motor is used for driving the impeller accommodated in the volute part to rotate so as to compress fluid flowing through the air inlet and pump the fluid to the air outlet, the shell is provided with a trigger assembly used for controlling the power on or off of the motor, a fluid increasing pipe is arranged at the position of the shell corresponding to the air outlet, the fluid increasing pipe comprises an outer cylinder part, an expanding part, a reducing part and a mounting part, the fluid increasing pipe is connected with the shell through the mounting part, the reducing part is connected with the mounting part, the inner wall of the reducing part is inwards contracted along the spraying direction of the fluid, the reducing part is connected with the expanding part through a connecting wall, the inner wall of the expanding part is outwards expanded along the opposite direction of the fluid spraying direction, and an air inlet flow passage is formed between the inner wall of the expanding part and the outer wall of the reducing part, the outer cylinder is connected with the flared part and used for leading out the fluid flowing through the flared part and the necking part to the outside.

Furthermore, an air inlet area is arranged on one side, close to the flaring portion, of the outer barrel portion, and the air inlet area is a plurality of air holes penetrating through the barrel wall of the outer barrel portion.

Further, the inner wall of the flared part is connected with the outer wall of the necking part through four connecting walls which are circumferentially arranged, and the connecting walls divide the air inlet flow channel into four air inlet flow channels.

Further, the width of the connecting wall gradually increases from the flared portion in the direction of the constricted portion.

Further, the installation department cover is located the position that the casing corresponds the air outlet, the casing is equipped with buckle portion, the installation department is equipped with the draw-in groove with buckle portion joint complex.

Further, one end of the shell, which is adjacent to the installation part, is provided with a guide part, and the installation part is provided with a guide groove matched with the guide part in a guide way.

Furthermore, the upper end of the impeller is provided with a through hole, the air inlet and the through hole are coaxially arranged, and the air outlet is perpendicular to the axis of the through hole.

Furthermore, a grille is arranged at the position, corresponding to the air outlet, of the shell, and the grille divides the air outlet into a plurality of areas.

Further, the casing comprises a control assembly and a hand-held part, the trigger assembly is mounted on the hand-held part, and the control assembly is electrically connected with the trigger assembly and the motor.

The fluid guide pipe is connected with the outer cylinder part and used for mixing the fluid flowing through the flaring part, the necking part and the air inlet area and then leading the fluid out to the outside.

In conclusion, the utility model has the following beneficial effects:

1. according to the venturi tube principle, in the high-speed fluid injection process, air around the air inlet flow channel is converged into the fluid increment tube through the air inlet flow channel under the action of atmospheric pressure and is mixed with air sprayed out of the volute to increase the injection flow, the cleaning efficiency of the blower is improved, and fallen leaves, grass, dust and other impurities can be quickly blown off and cleaned;

2. compared with a straight cylindrical structure, the flared part adopts an outwardly-expanded horn mouth structure, so that more air can be stored in the area surrounded by the horn mouth, sufficient air can be ensured to flow through the air inlet channel in unit time, the flared part can also guide the air around the air inlet channel, the air around the air inlet channel can conveniently enter the fluid incremental pipe, and the noise generated by air inlet is reduced;

3. an air inlet area is arranged on one side of the outer cylinder part close to the flaring part, so that the flow increasing efficiency of the fluid flow increasing pipe is improved;

4. because the fluid speed in the throat is large relative to the fluid speed at the flared part, the width of the connecting wall is gradually increased from the flared part along the direction of the throat, the strength of the throat is increased, the throat is firmer, and the service life of the fluid increasing pipe is prolonged.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a perspective cross-sectional view of the present invention.

FIG. 3 is a schematic diagram of the construction of a fluid burette of the present invention.

In the figure: 1. a housing; 11. a boss portion; 12. a fastening part; 13. a guide portion; 14. a limiting part; 15. a grid; 2. a volute portion; 21. an air inlet; 22. an air outlet; 3. an impeller; 31. a through hole; 4. a motor; 5. a hand-held portion; 6. a trigger assembly; 7. a control component; 8. a fluid burette; 81. an outer cylinder portion; 811. an air intake area; 82. a flared part; 821. an air inlet channel; 83. a necking part; 84. an installation part; 841. a card slot; 842. a guide groove; 85. a connecting wall; 9. and a flow guide pipe.

Detailed Description

The utility model will be further described with reference to the accompanying drawings.

As shown in fig. 1 to 3, a high flow blower includes a casing 1, an impeller 3 and a motor 4, the volute includes a first casing and a second casing which are detachably connected into a whole, in the present invention, the first casing and the second casing are inserted and fixed, a volute 2 is provided in the casing 1, specifically, the volute 2 and the casing 1 are integrally formed, a cavity for accommodating the impeller 3 is provided in the volute 2, and the structure of the impeller 3 can refer to chinese patent: the utility model discloses a No. CN111379731A, the top of impeller 3 is equipped with through-hole 31, volute portion 2 has air intake 21 and air outlet 22 with casing 1 outside intercommunication, air intake 21 with through-hole 31 coaxial setting just is located the opposite face of installation motor 4, air outlet 22 is perpendicular to the axis of through-hole 31, casing 1 corresponds the position of air intake 21 and is equipped with bellying 11, the upper end and the week of bellying 11 survey and communicate with the atmosphere, bellying 11 prevents that operating personnel's hand from getting into volute portion 2 and causing the injury, plays the guard action, on the other hand can increase the upper end intensity of this casing 1.

The motor 4 is used for driving the impeller 3 accommodated in the volute part 2 to rotate so as to compress the fluid flowing through the air inlet 21 and pump the fluid to the air outlet 22, the housing 1 is provided with a trigger assembly 6 for controlling the motor 4 to be powered on or off, the housing 1 comprises a control assembly 7 and a hand-held part 5, the trigger assembly 6 is arranged on the hand-held part 5, and the control assembly 7 is electrically connected with the trigger assembly 6 and the motor 4.

The fluid increasing tube 8 is installed at the position, corresponding to the air outlet 22, of the shell 1, the fluid increasing tube 8 comprises an outer cylinder portion 81, an expanding portion 82, a reducing portion 83 and an installation portion 84, in the utility model, the outer cylinder portion 81, the expanding portion 82, the reducing portion 83 and the installation portion 84 are integrally formed, the fluid increasing tube 8 is connected with the shell 1 through the installation portion 84, specifically, the installation portion 84 is sleeved at the position, corresponding to the air outlet 22, of the shell 1, the shell 1 is provided with a buckling portion 12, the installation portion 84 is provided with a clamping groove 841 in clamping fit with the buckling portion 12, the most equivalent alternative means is adopted, the installation portion 84 and the shell 1 can be in threaded connection and the like, in order to facilitate the insertion of the fluid increasing tube 8, the buckling portion 12 is aligned with the clamping groove 841, a guide portion 13 is arranged at one end, adjacent to the installation portion 84, of the shell 1, the installation portion 84 is provided with a guide groove 842 in guiding fit with the guide portion 13, meanwhile, in order to prevent the mounting part 84 from being excessively inserted into the housing 1, a limiting part 14 is arranged at one end of the housing 1 close to the mounting part 84, and the limiting part 14 is used for limiting the mounting part 84.

The necking part 83 is connected with the mounting part 84, the inner wall of the necking part 83 is shrunk inwards along the spraying direction of the fluid, in the utility model, the necking part 83 is a frustum structure with the inner wall gradually reduced, the necking part 83 is used for increasing the spraying speed of the fluid flowing through the air outlet 22, the necking part 83 is connected with the flaring part 82 through the connecting wall 85, the inner wall of the flaring part 82 is outwards expanded along the direction opposite to the spraying direction of the fluid, specifically, the flaring part 82 adopts a horn mouth structure with the inner wall and the outer wall synchronously expanded, an air inlet flow channel is formed between the inner wall of the flaring part 82 and the outer wall of the necking part 83, the fluid increasing pipe 8 is additionally arranged at the position of the shell 1 corresponding to the air outlet 22, according to the venturi principle, in the high-speed spraying process of the fluid, the air around the air inlet flow channel is converged into the fluid increasing pipe 8 through the air inlet flow channel under the action of atmospheric pressure to be mixed with the air sprayed from the volute to increase the spraying flow rate, the cleaning efficiency of the hair dryer is improved, and fallen leaves, grass, dust and other sundries can be quickly blown off and cleaned.

The inner wall of the flared part 82 is connected with the outer wall of the reduced part 83 through four connecting walls 85 which are circumferentially arranged, the connecting walls 85 divide the air inlet flow channel into four air inlet flow channels, the air inlet flow channels are evenly divided into four equal parts, fluid can enter the fluid increment tube 8 orderly, turbulence is prevented, the width of the connecting walls 85 is gradually increased from the flared part 82 along the direction of the reduced part 83, the fluid speed in the reduced part 83 is higher than that of the flared part 82, namely the reduced part 83 is easier to be damaged, the width of the connecting walls 85 is gradually increased from the flared part 82 along the direction of the reduced part 83, the strength of the reduced part 83 is increased, the reduced part 83 is firmer, and the service life of the fluid increment tube 8 is prolonged.

The outer cylinder part 81 is connected with the flared part 82, the outer cylinder part 81 is used for leading out the fluid flowing through the flared part 82 and the necking part 83 to the outside, in order to improve the flow increasing efficiency of the fluid flow increasing pipe 8, air inlet areas 811 are arranged on one side of the outer cylinder part 81 close to the flared part 82, the air inlet areas 811 are two groups and are evenly distributed on the outer cylinder part 81 in the circumferential direction, and the air inlet areas 811 are a plurality of air holes penetrating through the cylinder wall of the outer cylinder part 81.

The casing 1 is provided with the grid 15 corresponding to the position of the air outlet 22, the grid 15 divides the air outlet 22 into a plurality of areas, so that fluid pumped out from the air outlet 22 can orderly enter the necking part 83, and the pumping efficiency is improved.

The hair drier further comprises a guide pipe 9, wherein the guide pipe 9 is of a tubular structure, the guide pipe 9 is connected with the outer cylinder part 81, specifically, the guide pipe 9 and the outer cylinder part 81 are connected into a whole in a clamping mode, the most equivalent technical means can be achieved, threaded connection and the like can be adopted, and the guide pipe 9 can be arranged to enable fluid flowing through the flaring part 82, the necking part 83 and the air inlet area 811 to be mixed and then led out to the outside.

The above description is only a preferred embodiment of the present invention, and all equivalent changes or modifications of the structure, characteristics and principles described in the present invention are included in the scope of the present invention.

Claims

1. The utility model provides a high flow hair-dryer, includes casing (1), impeller (3) and motor (4), be equipped with volute portion (2) in casing (1), volute portion (2) have with casing (1) outside air intake (21) and air outlet (22) of intercommunication, motor (4) are used for the drive to hold impeller (3) rotation in volute portion (2) to the fluid that flows through air intake (21) and with its pump sending to air outlet (22), casing (1) are equipped with trigger subassembly (6) that are used for controlling motor (4) circular telegram or outage, its characterized in that: a fluid increasing pipe (8) is arranged at the position of the shell (1) corresponding to the air outlet (22), the fluid increasing pipe (8) comprises an outer cylinder part (81), a flared part (82), a necking part (83) and a mounting part (84), the fluid increasing tube (8) is connected with the shell (1) through a mounting part (84), the necking part (83) is connected with the mounting part (84), the inner wall of the throat part (83) is contracted inward in the direction of jetting the fluid, the throat part (83) is connected to the flared part (82) via a connecting wall (85), the inner wall of the flared portion (82) is flared outward in the direction opposite to the fluid ejection direction, an air inlet flow passage (821) is formed between the inner wall of the flared part (82) and the outer wall of the necking part (83), the outer cylinder part (81) is connected with the flared part (82), the outer cylinder part (81) is used for leading out the fluid flowing through the flaring part (82) and the necking part (83) to the outside.

2. A high flow hair dryer as claimed in claim 1, wherein: an air inlet area (811) is arranged on one side of the outer cylinder part (81) close to the flared part (82), and the air inlet area (811) is a plurality of air holes penetrating through the cylinder wall of the outer cylinder part (81).

3. A high flow hair dryer as claimed in claim 1, wherein: the inner wall of the flared part (82) is connected with the outer wall of the necking part (83) through four connecting walls (85) arranged circumferentially, and the connecting walls (85) divide the air inlet flow channel (821) into four air inlet flow channels (821).

4. A high flow hair dryer as claimed in claim 3, wherein: the width of the connecting wall (85) gradually increases from the flared section (82) in the direction of the constricted section (83).

5. A high flow hair dryer as claimed in claim 1, wherein: the installation portion (84) is sleeved on the position, corresponding to the air outlet (22), of the shell (1), the shell (1) is provided with a clamping portion (12), and the installation portion (84) is provided with a clamping groove (841) matched with the clamping portion (12) in a clamping mode.

6. A high flow hair dryer as claimed in claim 5, wherein: the one end that casing (1) is close to installation department (84) is equipped with guide part (13), installation department (84) are equipped with guide part (13) direction complex guide way (842).

7. A high flow hair dryer as claimed in claim 1, wherein: the upper end of the impeller (3) is provided with a through hole (31), the air inlet (21) and the through hole (31) are coaxially arranged, and the air outlet (22) is perpendicular to the axis of the through hole (31).

8. A high flow hair dryer as claimed in claim 1, wherein: casing (1) corresponds the position of air outlet (22) and is equipped with grid (15), grid (15) are separated into a plurality of regions with air outlet (22).

9. A high flow hair dryer as claimed in claim 1, wherein: the shell (1) comprises a control assembly (7) and a handheld part (5), the trigger assembly (6) is installed on the handheld part (5), and the control assembly (7) is electrically connected with the trigger assembly (6) and the motor (4).

10. A high flow hair dryer as claimed in claim 1, wherein: the fluid guide pipe is characterized by further comprising a fluid guide pipe (9), wherein the fluid guide pipe (9) is connected with the outer cylinder part (81), and the fluid guide pipe (9) is used for mixing the fluid flowing through the flared part (82), the necking part (83) and the air inlet area (811) and then leading the fluid out to the outside.