CN110236280B - Hair drier - Google Patents
Hair drier Download PDFInfo
- Publication number
- CN110236280B CN110236280B CN201810189578.4A CN201810189578A CN110236280B CN 110236280 B CN110236280 B CN 110236280B CN 201810189578 A CN201810189578 A CN 201810189578A CN 110236280 B CN110236280 B CN 110236280B
- Authority
- CN
- China
- Prior art keywords
- air
- air inlet
- inlet cover
- blower
- fan
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000007664 blowing Methods 0.000 claims abstract description 35
- 238000009423 ventilation Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 4
- 238000004891 communication Methods 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 244000025254 Cannabis sativa Species 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
- A45D20/00—Hair drying devices; Accessories therefor
- A45D20/04—Hot-air producers
- A45D20/08—Hot-air producers heated electrically
- A45D20/10—Hand-held drying devices, e.g. air douches
-
- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
- A45D20/00—Hair drying devices; Accessories therefor
- A45D20/04—Hot-air producers
- A45D20/08—Hot-air producers heated electrically
- A45D20/10—Hand-held drying devices, e.g. air douches
- A45D20/12—Details thereof or accessories therefor, e.g. nozzles, stands
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
- Cleaning And Drying Hair (AREA)
Abstract
The invention discloses a blower, and belongs to the technical field of garden equipment. The blower provided by the invention comprises a shell, an air inlet cover, an air blowing barrel and a first fan, wherein the air blowing barrel is arranged to protrude out of the shell, the first fan is arranged at one end of an air inlet in the air blowing barrel, an opening of the air inlet cover is arranged around the outer wall of the air blowing barrel, the opening direction of the air inlet cover is the same as the opening direction of an air outlet of the air blowing barrel, and the air inlet of the air blowing barrel extends into the air inlet cover. Because the opening direction of the air inlet cover is the same as the opening direction of the air outlet of the air blowing barrel, and the air inlet of the air blowing barrel extends into the air inlet cover, the partial reaction force of the air flow flowing out of the air blowing barrel to the air blower can be counteracted, the reaction force of the air blower to a user and the operation difficulty of the user holding the air blower are reduced, and the use experience of the user is improved.
Description
Technical Field
The invention relates to the technical field of garden equipment, in particular to a blower.
Background
A blower is a garden device for helping a user to clean up sundries such as grass clippings, leaves and the like in a garden or a garden. The blower completes the cleaning task by generating an air flow with a certain speed and direction, and using the air flow to blow grass clippings or leaves to a specific position. Existing blowers are classified into centrifugal blowers and axial flow blowers.
Along with the gradual increase of the application range of the blower, the requirements of users on the wind speed and the air quantity of the air flow generated by the blower are also gradually increased, and the increase of the wind speed and the air quantity of the air flow can greatly improve the cleaning effect and the cleaning speed of the blower, but also lead to the continuous improvement of the reaction force generated by the air flow to the blower, thereby increasing the difficulty of the users in holding the blower, and the users can easily feel tired in the use process.
Disclosure of Invention
The invention aims to provide a blower which has small reaction force to a user, is good in use experience and is not easy to generate fatigue.
To achieve the purpose, the invention adopts the following technical scheme:
a hair dryer, comprising:
a housing;
the air blowing barrel protrudes out of the shell;
the first fan is arranged at one end of the air inlet in the air blowing barrel;
the air inlet cover is arranged on the outer wall of the air blowing barrel in a surrounding mode, the opening direction of the air inlet cover is the same as the opening direction of the air outlet of the air blowing barrel, and the air inlet of the air blowing barrel extends into the air inlet cover.
Preferably, the air inlet cover also comprises a motor, wherein the motor is positioned inside the air inlet cover, and one end of the motor is fixedly connected to the bottom surface of the air inlet cover, and the other end of the motor is connected with the first fan.
Preferably, the bottom surface of the air inlet cover is in a cone-shaped structure.
Preferably, the casing is provided with a containing cavity for installing the air inlet cover, an air inlet channel is formed between the inner wall of the containing cavity and the outer wall of the air inlet cover, an air outlet channel communicated with the air inlet channel is arranged in the casing, the opening direction of an air outlet of the air outlet channel is opposite to the opening direction of an air outlet of the air blowing cylinder and is inclined towards the bottom of the air blower, and a second fan is arranged at the communication position of the air inlet channel and the air outlet channel.
Preferably, a vent is arranged on the shell, and the vent is communicated with the air inlet channel.
Preferably, the number of the ventilation openings is not less than two, and the ventilation openings which are not less than two are uniformly distributed along the circumferential direction of the casing.
Preferably, one end of a motor shaft of the motor penetrates through the bottom surface of the air inlet cover to be connected with the second fan, and the other end of the motor shaft is connected with the first fan.
Preferably, the housing includes a first housing and a second housing, and the first housing and the second housing are detachably connected.
The invention has the beneficial effects that:
in the working process of the blower provided by the invention, air flow enters from the air inlet of the air inlet cover, high-speed air flow is formed under the acceleration action of the first fan, and the high-speed air flow flows out through the blowing cylinder. Because the opening direction of the air inlet cover is the same as the opening direction of the air outlet of the blowing barrel, the high-speed air flow forms a negative pressure space at the bottom end of the air inlet cover, and because the pressure at the two sides of the bottom end of the air inlet cover is different, an acting force is formed on the blower, and the acting force is just opposite to the reaction force of the air flow flowing out from the blowing barrel to the blower, so that part of the reaction force of the air flow can be counteracted, the reaction force of the blower to a user and the operation difficulty of the user for holding the blower can be reduced, and the use experience of the user is improved.
Drawings
Fig. 1 is a front view of a blower provided by the present invention;
fig. 2 is a top view of a blower provided by the present invention;
FIG. 3 is a cross-sectional view taken along the direction A-A in FIG. 2;
fig. 4 is an exploded view of a blower provided by the present invention.
In the figure: 1. a housing; 11. a first housing; 12. a second housing; 13. a handle; 14. a vent;
2. an air blowing tube; 3. an air inlet cover; 4. a motor;
5. a fan assembly; 51. a first fan; 52. a second fan;
6. an auxiliary channel; 61. an air inlet channel; 62. and an air outlet channel.
Detailed Description
The technical scheme of the invention is further described below by the specific embodiments with reference to the accompanying drawings.
The invention provides a blower which is used for cleaning weeds in lawns and courtyards. As shown in fig. 1 to 4, the blower includes a cabinet 1, a blower duct 2, an air intake cover 3, a motor 4, and a fan assembly 5, and the fan assembly 5 includes a first fan 51 and a second fan 52. The casing 1 may be integrally formed or may be formed by splicing a plurality of parts, and in this embodiment, in order to reduce the assembly difficulty of the internal parts of the casing 1, as shown in fig. 2, the casing 1 is formed by splicing two parts. Specifically, the casing 1 includes a first casing 11 and a second casing 12 arranged left and right, the first casing 11 is a right casing, the second casing 12 is a left casing, and the first casing 11 and the second casing 12 are preferably formed by plastic injection molding. Of course, in other embodiments, the casing 1 may be formed by splicing an upper casing and a lower casing that are arranged up and down, or formed by splicing three parts, four parts, or more. The first housing 11 and the second housing 12 are detachably connected in a manner of selectively snap-fitting connection or connection by means of screws. To facilitate the cleaning task of the user holding the hair dryer, the top of the housing 1 is provided with a handle 13. The handle 13 and the casing 1 may be integrally formed, that is, the handle 13 is directly formed on the top of the casing 1 when the casing 1 is manufactured, or the handle 13 is separately manufactured and then the handle 13 is fixed to the casing 1, in this embodiment, the handle 13 and the casing 1 are preferably integrally formed in order to simplify the assembling process of the blower.
As shown in fig. 3, one end of the casing 1 is opened and forms a receiving chamber for receiving the air inlet cover 3, one end of the air blowing cylinder 2 is disposed in the receiving chamber, and the other end protrudes from the casing 1. The opening of the air inlet cover 3 surrounds the outer wall of the air blowing barrel 2, the opening direction of the air inlet cover 3 is the same as the opening direction of the air outlet of the air blowing barrel 2, and the air inlet of the air blowing barrel 2 extends into the air inlet cover 3. The motor 4 is located inside the air inlet cover 3 and is fixedly installed on the bottom surface of the air inlet cover 3, a motor shaft of the motor 4 is arranged along the outflow direction of air flow, the motor shaft is connected with the first fan 51, and the first fan 51 is arranged at one end of the air inlet in the blowing cylinder 2, so that the guiding effect of the fan on the air flow is improved, and the air flow can flow out accurately at a high speed through the blowing cylinder 2. Under the driving action of the motor 4, the first fan 51 rotates to accelerate the air flow reversely flowing through the bottom surface of the air inlet cover 3 to form main high-speed air flow, the sudden acceleration of the air flow forms a negative pressure space at the bottom end of the air inlet cover 3, and as the air pressures at the two sides of the bottom end of the air inlet cover 3 are different, acting force can be applied to the blower, and the acting force direction of the acting force is opposite to the acting force of the main high-speed air flow on the blower, so that the acting force of a part of even all the air flow on the blower can be counteracted, the acting force of the blower on a user and the difficulty of the user in holding the blower are reduced, and the use experience of the user is improved.
Further, as shown in fig. 4, in order to provide the bottom end of the air intake cover 3 with a collecting effect, the bottom surface of the air intake cover 3 is provided with a tapered structure. As shown in fig. 3, the air flow horizontally enters the air inlet cover 3 and then reaches the bottom end of the air inlet cover 3, and the air flow is changed from the horizontal direction to the inclined direction while reversing due to the conical structure of the bottom end of the air inlet cover 3, and is concentrated and inclined towards the direction of the blowing cylinder 2, so that the main high-speed air flow is concentrated and enters the blowing cylinder 2, the negative pressure effect of the bottom end of the air inlet cover 3 is further increased, and the acting force of the blowing machine on a user is reduced.
Further, an auxiliary channel 6 is further provided in the casing 1, the auxiliary channel 6 specifically includes an air inlet channel 61 and an air outlet channel 62, the air inlet channel 61 is formed by a space between an inner wall of the accommodating cavity and an outer wall of the air inlet cover 3, one end of the air outlet channel 62 is communicated with the air inlet channel 61, and the other end extends to the rear of the casing 1 and is inclined towards the bottom of the casing 1. The air outlet direction of the air outlet channel 62 is opposite to the opening direction of the air outlet of the air blowing barrel 2, and the included angle between the air outlet channel 62 and the horizontal direction is an acute angle.
The second fan 52 is disposed at a communication position of the air inlet passage 61 and the air outlet passage 62, and the size of the second fan 52 is smaller than that of the first fan 51. After the air flow enters the shell 1 from the air inlet channel 61, the air flow is accelerated by the second fan 52 to form auxiliary high-speed air flow, the auxiliary high-speed air flow flows to the direction opposite to the main high-speed air flow through the air outlet channel 62, the component force of the acting force of the auxiliary high-speed air flow to the shell 1 in the horizontal direction can directly offset the reaction force of part of the main high-speed air flow to the blower, and the component force of the acting force of the auxiliary high-speed air flow to the shell 1 in the vertical direction can partially offset the gravity of the blower, so that the reaction force of the blower to a user and the difficulty of the user in holding the blower are further reduced, and the use experience of the user is improved.
Because the main high-speed air flow generated by the first fan 51 and the auxiliary high-speed air flow generated by the second fan 52 can both form a turnover force arm for the handle 13, the main high-speed air flow enables the blower to turn upwards, and the auxiliary high-speed air flow enables the blower to turn downwards, in order to avoid that the blower turns upwards when a user holds the blower for operation, the force arm generated by the auxiliary high-speed air flow is preferably larger than the force arm generated by the main high-speed air flow.
Further, in order to increase the air flow rate in the auxiliary duct 6, as shown in fig. 4, a ventilation opening 14 is further provided in the casing 1, and the ventilation opening 14 communicates with the air intake duct 61. The number of vents 14 is preferably a plurality, such as two, three, or four. In order to achieve uniform intake, the vents 14 are uniformly arranged along the circumferential direction of the cabinet 1. The increase of the air flow in the auxiliary channel 6 can further increase the overturning moment arm to the handle 13 and further prevent the blower from overturning.
In this embodiment, the second fan 52 is also driven by the motor 4, and in order to simplify the internal structure of the blower, it is preferable that the second fan 52 and the first fan 51 are driven by the same motor 4, the motor 4 is preferably an inner rotor motor, both ends of the motor shaft of the motor 4 protrude from the casing 1, one end of the motor shaft passes through the bottom surface of the air inlet cover 3 to be connected with the second fan 52, and the other end is connected with the first fan 51.
It is to be understood that the above examples of the present invention are provided for clarity of illustration only and are not limiting of the embodiments of the present invention. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the invention are desired to be protected by the following claims.
Claims (8)
1. A hair dryer, comprising:
a housing;
the air blowing barrel protrudes out of the shell;
the first fan is arranged at one end of an air inlet in the air blowing barrel;
it is characterized in that the method comprises the steps of,
the blower is an axial flow blower;
the air blower also comprises an air inlet cover, an opening of the air inlet cover surrounds the outer wall of the air blowing barrel, an opening direction of an air inlet of the air inlet cover is opened forwards to allow air flow to enter the air inlet from front to back, the opening direction of the air inlet cover is the same as that of an air outlet of the air blowing barrel, and the air inlet of the air blowing barrel stretches into the air inlet cover.
2. A hair dryer according to claim 1, wherein,
the fan is characterized by further comprising a motor, wherein the motor is positioned inside the air inlet cover, one end of the motor is fixedly connected to the bottom surface of the air inlet cover, and the other end of the motor is connected with the first fan.
3. A hair dryer according to claim 1, wherein,
the bottom surface of the air inlet cover is in a cone-shaped structure.
4. A hair dryer according to claim 2, wherein,
the air inlet cover is characterized in that an accommodating cavity for installing the air inlet cover is formed in the machine shell, an air inlet channel is formed between the inner wall of the accommodating cavity and the outer wall of the air inlet cover, an air outlet channel communicated with the air inlet channel is arranged in the machine shell, the opening direction of an air outlet of the air outlet channel is opposite to the opening direction of an air outlet of the air blowing barrel and faces the bottom of the air blower, and a second fan is arranged at the communication position of the air inlet channel and the air outlet channel.
5. A hair dryer according to claim 4, wherein,
the shell is provided with a vent, and the vent is communicated with the air inlet channel.
6. A hair dryer according to claim 5, wherein,
the number of the ventilation openings is not less than two, and the ventilation openings which are not less than two are uniformly distributed along the circumferential direction of the shell.
7. A hair dryer according to claim 4, wherein,
one end of a motor shaft of the motor penetrates through the bottom surface of the air inlet cover to be connected with the second fan, and the other end of the motor shaft is connected with the first fan.
8. A hair dryer according to claim 1, wherein,
the shell comprises a first shell and a second shell, and the first shell and the second shell are detachably connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810189578.4A CN110236280B (en) | 2018-03-08 | 2018-03-08 | Hair drier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810189578.4A CN110236280B (en) | 2018-03-08 | 2018-03-08 | Hair drier |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110236280A CN110236280A (en) | 2019-09-17 |
| CN110236280B true CN110236280B (en) | 2023-12-12 |
Family
ID=67882538
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810189578.4A Active CN110236280B (en) | 2018-03-08 | 2018-03-08 | Hair drier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110236280B (en) |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN110236280A (en) | 2019-09-17 |
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Address after: No. 529, Jiangjun Avenue, Jiangning Economic and Technological Development Zone, Nanjing, Jiangsu Province Applicant after: Nanjing Quanfeng Technology Co.,Ltd. Address before: No. 529, Jiangjun Avenue, Jiangning Economic and Technological Development Zone, Nanjing, Jiangsu Province Applicant before: NANJING CHERVON INDUSTRY Co.,Ltd. |
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