CN110584523A - Air wall type intelligent hand dryer and wash basin - Google Patents
Air wall type intelligent hand dryer and wash basin Download PDFInfo
- Publication number
- CN110584523A CN110584523A CN201910984857.4A CN201910984857A CN110584523A CN 110584523 A CN110584523 A CN 110584523A CN 201910984857 A CN201910984857 A CN 201910984857A CN 110584523 A CN110584523 A CN 110584523A
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- air
- hand dryer
- wall
- shell
- fan blade
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47K—SANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
- A47K10/00—Body-drying implements; Toilet paper; Holders therefor
- A47K10/48—Drying by means of hot air
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
- E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
- E03C1/02—Plumbing installations for fresh water
- E03C1/04—Water-basin installations specially adapted to wash-basins or baths
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- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Hydrology & Water Resources (AREA)
- Water Supply & Treatment (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
An air wall type intelligent hand dryer and a wash basin, wherein the air wall type intelligent hand dryer comprises a host machine shell, a brushless motor, a turbofan, an airflow injection component and a fan blade shell; a plurality of rows of air suction holes are formed in the side wall of the main machine shell, and a cover is arranged on the top surface of an opening of the main machine shell; the brushless motors are arranged on a base at the bottom of the host shell; a turbofan is arranged on a rotating shaft of a brushless motor; the airflow injection component is arranged on the cover; the fan blade shell covers a group of brushless motors and the turbofan, a plurality of rows of air inlet holes are formed in the side wall of the fan blade shell, and air outlet holes are formed in the top surface of the fan blade shell and are communicated with the airflow injection component through a connecting flow guide pipe; when the plurality of turbofan rotate simultaneously, the plurality of turbofan can converge at the center of the air flow injection part to form an air blocking wall, and the air blocking wall is used for scraping residual water drops on hands. The present invention makes the user feel no stepped impact and wave-like stimulus, and it makes the user feel more natural air flow by the continuous air flow.
Description
Technical Field
The invention relates to the field of hand dryers, in particular to an air wall type intelligent hand dryer.
Background
The existing hand dryer utilizes the physical principle that hot air blown by a machine causes water drops on hands of a user to be evaporated by heat, but the device has the defects of low efficiency, high power consumption, poor comfort degree and the like, the hot air needs to be used for evaporating the water drops for a long time, the process is slow, and the water on the hands of the user needs to be blown for two minutes after the hands of the user are washed.
When the hand dryer is used for a long time, a lot of bacteria can be bred in the hand dryer, and after the hand dryer is used, a plurality of bacteria and fungi can be attached to the hand, so that diseases are easily caused. Some machines now use uv disinfection which causes some damage to the skin.
Disclosure of Invention
According to the defects of the prior art, the invention provides an air wall type hand dryer which is used for solving the defects of the prior art.
The invention is realized according to the following technical scheme:
air-wall type intelligent hand dryer, comprising:
the side wall of the main machine shell is provided with a plurality of rows of air suction holes, and the top surface of an opening of the main machine shell is provided with a cover;
the brushless motors are arranged on a base at the bottom of the host shell;
a turbofan is arranged on a rotating shaft of a brushless motor;
an air flow injection part mounted on the cover;
the fan blade shell covers a group of brushless motors and the turbofan, a plurality of rows of air inlet holes are formed in the side wall of the fan blade shell, and air outlet holes are formed in the top surface of the fan blade shell and are communicated with the airflow injection component through a connecting flow guide pipe;
when the plurality of turbofan rotate simultaneously, the plurality of turbofan can converge at the center of the air flow injection part to form an air blocking wall, and the air blocking wall is used for scraping residual water drops on hands.
Further, the number of the brushless motors is three, and the three brushless motors are arranged in the host shell in a triangular structure.
Furthermore, the airflow injection part is of a hollow ring-shaped structure, and a palm main air port, a left secondary air port and a right secondary air port are arranged on the inner ring surface of the airflow injection part; the palm main air opening and the back main air opening are correspondingly arranged front and back, and the left secondary air opening and the right secondary air opening are correspondingly arranged left and right.
Furthermore, the palm main air port, the left secondary air port and the right secondary air port which are positioned outside the air flow injection part are all of hollow prismatic table structures, so that the air inlet is wide, and the air outlet is narrow.
Furthermore, the palm main air inlet is communicated with an air outlet hole in the fan blade shell I through a flow guide pipe I; the hand back main air inlet is communicated with an air outlet hole in the fan blade shell II through a flow guide pipe II; and the left secondary air port and the right secondary air port are communicated with an air outlet hole in the fan blade shell III through a flow guide pipe III.
Further, the left secondary air port and the right secondary air port are inclined outwards by 10 degrees by taking the vertical central plane of the air flow injection part as a reference; the palm main air opening and the back main air opening are inclined outwards by 10 degrees by taking the horizontal central plane of the airflow injection part as a reference; accurate air current injection is carried out simultaneously to four wind gaps that incline 10 degrees to the outside, and the center that four tracks of air currents assembled can form the high pressure, and four fan-shaped air currents are guided to high pressure center, and the air current of gathering can be erupted to 45 degrees angle departments of below and plane slope to the below that can incline after the four merges.
Further, a PTC ceramic plate is arranged in the airflow jet part, and the PTC ceramic plate is conducted through a power supply to rapidly heat inflowing airflow; the air flow spraying component is internally provided with a temperature sensor, a temperature signal monitored by the temperature sensor is processed by a controller, and the controller controls the PTC ceramic plate to heat the air flow at a preset temperature.
Furthermore, a filter screen is arranged in the main machine shell and used for filtering air sucked into the main machine shell; the main machine shell is an iron sheet barrel consisting of a left half-arc-shaped iron sheet and a right half-arc-shaped iron sheet buckle, the cover is tightly fixed between the two half-arc-shaped iron sheets, the base is sleeved on the main machine shell 1, and the main machine shell and the base are fixed together through a plurality of screws around the side wall of the base; when the filter screen needs to be replaced, the base only needs to be disassembled, and then the two half-arc iron sheets can be separated to be replaced.
Furthermore, a human body infrared sensor for vertical downward detection is arranged in the middle of the top end of the airflow jet part, human body signals monitored by the human body infrared sensor are processed by a controller, and the controller controls a driving circuit to enable the brushless motor to operate.
The washing basin is provided with the air wall type intelligent hand dryer.
The invention has the beneficial effects that:
the super high-rotation-speed brushless motor is arranged on a shell of a main machine, the super high-rotation-speed brushless motor is enabled to be pumped at a high speed and lead out a large amount of air through a built-in flow guide pipe, the air is guided by using main and secondary air guide ports of the device in four directions of 360 degrees from top to bottom, the main and secondary air guide ports are crossed at a focus at the center, and an air wall is formed. While the user does not feel the stepwise shocks and wave-like stimulus, it gives the user a more natural airflow by the continuous air flow.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention and not to limit the invention. The present invention will be described in detail below with reference to the accompanying drawings and examples.
FIG. 1 is a front view of an air-wall hand dryer;
FIG. 2 is a side view of an air-wall hand dryer;
FIG. 3 is an exploded view of an air wall hand dryer;
FIG. 4 is a main view of the turbofan and brushless motor;
FIG. 5 is a perspective view of the turbofan and brushless motor;
FIG. 6 is a diagram of a host housing configuration;
FIG. 7 is a view showing the structure of a cover;
FIG. 8 is a cross-sectional view of the gas flow jet assembly;
FIG. 9 is a side view of the A-A surface of the air flow injection unit;
FIG. 10 is a view of the structure of an air wall dryer with the lid removed;
FIG. 11 is a view of the internal structure of the air wall hand dryer;
figure 12 is a cross-sectional view of an air-wall hand dryer;
fig. 13 is a diagram showing a structure of a strainer.
In the figure: 1-main frame shell, 2-cover, 3-base, 4-airflow injection component, 5-palm main air port, 6-back main air port, 7-left secondary air port, 8-right secondary air port, 9-human body infrared sensor, 10-turbofan, 11-brushless motor, 12-fan blade shell, 13-flow guide pipe III, 14-flow guide pipe I, 15-flow guide pipe II, 16-square mounting base.
Detailed Description
In order to make the implementation objects, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be described in more detail below with reference to the accompanying drawings in the embodiments of the present invention. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are only some, but not all embodiments of the invention. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
As shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 10, fig. 11, fig. 12, an air wall type intelligent hand dryer comprises a main machine housing 1, a brushless motor 11, a turbofan 10, an air jet part 4 and a fan blade housing 12; wherein, the side wall of the main frame shell 1 is provided with a plurality of rows of air suction holes, and the top surface of the opening of the main frame shell 1 is provided with a cover 2; a plurality of brushless motors 11 are arranged on the base 3 at the bottom of the host housing 1; a turbofan 10 is arranged on a rotating shaft of a brushless motor 11; the airflow injection part 4 is arranged on the cover 2; the fan blade shell 12 covers a group of brushless motors 11 and the turbofan 10, a plurality of rows of air inlet holes are arranged on the side wall of the fan blade shell 12, and an air outlet hole is arranged on the top surface of the fan blade shell 12 and is communicated with the airflow injection part 4 through a connecting flow guide pipe 13; when the plurality of the turbofan 10 rotates simultaneously, it is converged at the center of the air current spraying part 4 to form an air blocking wall for scraping off the remaining water drops on the hand.
It should be noted that the brushless motor 11 is used because the brush motor generates carbon powder when it rotates, and the carbon powder is blown to the cleaned hands by the jetted air flow, which may cause some unhealthy factors. Preferably, a high speed ultra-silent brushless aluminum motor is used. The number of the brushless motors 11 is three, and the three brushless motors 11 are arranged in the main body housing 1 in a triangular structure, as shown in fig. 10 and 11.
As shown in fig. 6, the main body case 1 is a 360-degree annular net-shaped iron cylinder composed of thousands of 2 mm suction holes.
Brushless motor 11's bottom is fixed on base 3 or brushless motor 11's bottom is equipped with the otic placode, is equipped with the bolt hole on base 3, through the bolt with brushless motor 11 detachable installation on base 3.
The bottom of the turbofan 10 is composed of eight fan blades, so that stronger air flow is generated.
As shown in fig. 7, the upper cover 2 is a structure similar to a round table, a long opening is formed on the arc-shaped side surface of the upper cover 2, a square mounting seat 16 is arranged at the bottom of the airflow injection component 4 and is used for being tightly inserted into the long opening of the upper cover 2, and the upper cover 2 is tightly buckled on the top surface of the host casing 1.
Preferably, a plurality of circles of raised lines are arranged on the outer side surface of the square mounting seat 16 to increase the friction force between the square mounting seat 16 and the long opening; or, the outer wall of the square mounting seat 16 is provided with a plurality of salient points, and the inner wall of the long opening is provided with a plurality of salient points, so that the friction force between the two is increased.
It should be noted that the base 3 is sleeved on the host housing 1, and the side wall of the base 3 is fixed to the host housing 1 and the base 3 by a plurality of screws around.
Three external thread seats are arranged on the base 3, internal threads are arranged on the side surface of the fan blade shell 12 close to the bottom surface, and the fan blade shell 12 is detachably arranged on the base 3 through the matching of the internal threads and the external threads; or, three internal thread seats are arranged on the base 3, and external threads are arranged on the side surface of the fan blade shell 12 close to the bottom surface.
Further, a filter screen is arranged inside the main machine shell 1 and used for filtering air sucked into the main machine shell 1. The filter screen is the cylinder structure that the diameter slightly is less than host computer shell 1, washs through regularly dismantling the filter screen, prevents that the mesh is blockked up to the dirt too much, can also reduce breeding of bacterium, as shown in fig. 13. Of course, a sterilization device (such as an ultraviolet lamp) can be installed on the inner wall of the upper cover 2 for further sterilization, which will increase the cost of the hand dryer, and the manufacturer can adjust the sterilization device to increase the functions according to market demands.
It should be noted that the main machine housing 1 is formed by a left half arc iron sheet and a right half arc iron sheet buckle to form an iron sheet barrel (namely, two planes of the left half arc iron sheet are provided with concave points, two planes of the right half arc iron sheet are provided with convex points, and the fixation of the left half arc iron sheet and the right half arc iron sheet is realized through the matching of the concave points and the convex points, or, two planes of the left half arc iron sheet are provided with convex points, and two planes of the right half arc iron sheet are provided with concave points), the cover 2 is tightly fixed between the two half arc iron sheets, the base 3 is sleeved on the main machine housing 1, and the main machine housing 1 and the base 3 are fixed; when the filter screen needs to be replaced, the base 3 only needs to be detached, and then the two half-arc iron sheets can be separated to be replaced.
As shown in fig. 8 and 9, the airflow injection part 4 is a hollow ring-shaped structure, and a palm main tuyere 5, a palm main tuyere 6, a left secondary tuyere 7 and a right secondary tuyere 8 are arranged on the inner ring surface of the airflow injection part 4; wherein, the palm main air inlet 5 and the back of the hand main air inlet 6 are correspondingly arranged in the front-back direction, and the left secondary air inlet 7 and the right secondary air inlet 8 are correspondingly arranged in the left-right direction.
The preferable scheme is as follows: the palm main air port 5, the back of the hand main air port 6, the left secondary air port 7 and the right secondary air port 8 which are positioned outside the air flow injection part 4 are all of hollow prismatic table structures, so that the air inlet is wide, and the air outlet is narrow.
The palm main air opening 5 is communicated with an air outlet hole in the fan blade shell I through a flow guide pipe I14, and the back of the hand main air opening 6 is communicated with an air outlet hole in the fan blade shell II through a flow guide pipe II 15; the left secondary air port 7 and the right secondary air port 8 are communicated with an air outlet hole in the fan blade shell III through a flow guide pipe III 13.
It should be noted that the palm-shaped main air opening 5 inside the flow injection component 4 is a funnel-shaped structure and is connected with the flow guide pipe at the narrow part; the hand back main air inlet 6, the left secondary air inlet 7 and the right secondary air inlet 8 which are positioned in the flow injection part 4 are all of a structure which is wide in front and narrow in back, and are connected with the flow guide pipe at the narrow part.
The left secondary air opening 7 and the right secondary air opening 8 are inclined outwards by 10 degrees by taking the vertical central plane of the airflow injection part 4 as a reference; the palm main air inlet 5 and the back main air inlet 6 are inclined outwards by 10 degrees by taking the horizontal central plane of the airflow injection part 4 as a reference; accurate air current injection is carried out simultaneously to four wind gaps that incline 10 degrees to the outside, and the center that four tracks of air currents assembled can form the high pressure, and four fan-shaped air currents are guided to high pressure center, and the air current of gathering can be erupted to 45 degrees angle departments of below and plane slope to the below that can incline after the four merges.
The working process comprises the following steps:
utilize three high-speed super-silent brushless aluminium system motors to drive three turbofan 10 respectively and inhale and send the honeycomb duct to the air from 360 degrees netted iron leather casings of thousand 2 millimeters suction holes constitution, inhaled air carries out the air current guide through three circular smooth honeycomb ducts respectively, thereby honeycomb duct I14 and honeycomb duct II 15 connect gradually to palm main wind gap 5 and back of the hand main wind gap 6 and form the guide and the injection of air current, thereby honeycomb duct III 13 can carry out the water conservancy diversion for two secondary wind gaps simultaneously and form the air current injection. When palm of the hand main air inlet 5, back of the hand main air inlet 6, left time wind gap 7 and right time wind gap 8, carry out accurate air current injection simultaneously to the air outlet of total four outside inclinations 10 degrees, spout and go out along the constrictive nozzle of outside inclinations 10 degrees when powerful air current, thereby four fan-shaped air currents can be guided to the center of its air current jet part 4 and meet and form a stifled air wall, this stifled air wall is used for scraping the remaining drop of water on hand. At the moment, the center of convergence of the four air flows forms high pressure, the four fan-shaped air flows are guided to the high-pressure center, the four air flows are combined and then jet out at an angle of 45 degrees with the plane in an inclined mode towards the lower side, and at the moment, scraped water drops can be jetted out along with the collected air flows and then flow into the water pool.
This device utilizes the principle of air current polymerization to form the air wall, the concentrated air current of injection, in order to make the air current temperature of injection can reach a comfortable temperature of feeling along with indoor temperature's change, be equipped with the PTC ceramic plate in the air current injection part 4, thereby carry out the rapid heating to the air current, the inside sensor of accurate monitoring temperature that is equipped with of device, the temperature that the device accessible temperature sensor accurately monitored is handled through central integrated control chip, and give one when the room temperature, the temperature of human sensation comfort level, make the device reach intelligent thermostatic control, the PTC ceramic plate leaves the machine at the air current, begin to heat the air that erupts, rise as the ceramic plate temperature, its electric conductivity can weaken relatively, thereby overheated phenomenon can not appear, the real-time temperature that reaches the air current can obtain nimble adjustment. On the other hand, the device utilizes the negative pressure effect of the air flow, so that the nozzle can not only spray strong air flow, but also cannot influence the comfort level.
Further scheme: the top middle part of air current injection part 4 is equipped with the human infrared sensor 9 of vertical downward detection, and the human signal that human infrared sensor 9 monitored is handled through the controller, and controller control drive circuit makes brushless motor 11 operation, has realized this air wall formula hand dryer's intellectuality, and wherein, can adopt the sine wave to drive to reach the effect of making an uproar.
It should be noted that the controller, the driving circuit, the corresponding power conversion module, and the like are all concentrated on one PCB circuit board, and the PCB circuit board is disposed in the host casing 1.
To sum up, be equipped with super high rotational speed brushless motor at the host computer shell, make it derive a large amount of air with high-speed suction and through built-in honeycomb duct, utilize the device about 360 degrees primary and secondary wind-guiding mouths in four position to wind and make it cross in a focus at center, make it form one side air wall, the user only needs the handle to pass through the air wall and withdraws back again, the water droplet on hand will be all "scraped" by the air wall, on the one hand not only very big promotion efficiency like this, more energy-conservation, more environmental protection. While the user does not feel the stepwise shocks and wave-like stimulus, it gives the user a more natural airflow by the continuous air flow.
The invention also provides a wash basin which is provided with the air wall type intelligent hand dryer. This air wall formula intelligent hand dryer places in wash basin one side, has washed the hand and has carried out the hand dryer through the air-flowing type, has further increased the function in wash basin.
Finally, it should be noted that the above examples are only used to illustrate the technical solutions of the present invention and not to limit the same; although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art will understand that: modifications to the specific embodiments of the invention or equivalent substitutions for parts of the technical features may be made; without departing from the spirit of the present invention, it is intended to cover all aspects of the invention as defined by the appended claims.
Claims (10)
1. Air wall formula intelligent hand dryer, its characterized in that includes:
the side wall of the main machine shell is provided with a plurality of rows of air suction holes, and the top surface of an opening of the main machine shell is provided with a cover;
the brushless motors are arranged on a base at the bottom of the host shell;
a turbofan is arranged on a rotating shaft of a brushless motor;
an air flow injection part mounted on the cover;
the fan blade shell covers a group of brushless motors and the turbofan, a plurality of rows of air inlet holes are formed in the side wall of the fan blade shell, and air outlet holes are formed in the top surface of the fan blade shell and are communicated with the airflow injection component through a connecting flow guide pipe;
when the plurality of turbofan rotate simultaneously, the plurality of turbofan can converge at the center of the air flow injection part to form an air blocking wall, and the air blocking wall is used for scraping residual water drops on hands.
2. The air-wall intelligent hand dryer of claim 1, wherein: the number of the brushless motors is three, and the three brushless motors are arranged in the host shell in a triangular structure.
3. The air-wall intelligent hand dryer of claim 1, wherein: the air flow injection part is of a hollow ring-shaped structure, and a palm main air port, a left secondary air port and a right secondary air port are arranged on the inner ring surface of the air flow injection part;
the palm main air opening and the back main air opening are correspondingly arranged front and back, and the left secondary air opening and the right secondary air opening are correspondingly arranged left and right.
4. Air-wall intelligent hand dryer according to claim 3, characterized in that: the palm main air port, the left secondary air port and the right secondary air port which are positioned outside the air flow injection part are all of hollow prismatic table structures, so that the air inlet is wide, and the air outlet is narrow.
5. Air-wall intelligent hand dryer according to claim 3, characterized in that: the palm main air port is communicated with an air outlet hole in the fan blade shell I through a flow guide pipe I; the hand back main air inlet is communicated with an air outlet hole in the fan blade shell II through a flow guide pipe II; and the left secondary air port and the right secondary air port are communicated with an air outlet hole in the fan blade shell III through a flow guide pipe III.
6. Air-wall intelligent hand dryer according to claim 3, characterized in that: the left secondary air port and the right secondary air port are inclined outwards by 10 degrees by taking the vertical central plane of the airflow injection part as a reference;
the palm main air opening and the back main air opening are inclined outwards by 10 degrees by taking the horizontal central plane of the airflow injection part as a reference;
accurate air current injection is carried out simultaneously to four wind gaps that incline 10 degrees to the outside, and the center that four tracks of air currents assembled can form the high pressure, and four fan-shaped air currents are guided to high pressure center, and the air current of gathering can be erupted to 45 degrees angle departments of below and plane slope to the below that can incline after the four merges.
7. The air-wall intelligent hand dryer of claim 1, wherein: the PTC ceramic plate is connected with a power supply to conduct the PTC ceramic plate to rapidly heat the inflowing air flow;
the air flow spraying component is internally provided with a temperature sensor, a temperature signal monitored by the temperature sensor is processed by a controller, and the controller controls the PTC ceramic plate to heat the air flow at a preset temperature.
8. The air-wall intelligent hand dryer of claim 1, wherein: a filter screen is arranged in the main machine shell and used for filtering air sucked into the main machine shell;
the main machine shell is an iron sheet barrel consisting of a left half-arc-shaped iron sheet and a right half-arc-shaped iron sheet buckle, the cover is tightly fixed between the two half-arc-shaped iron sheets, the base is sleeved on the main machine shell 1, and the main machine shell and the base are fixed together through a plurality of screws around the side wall of the base; when the filter screen needs to be replaced, the base only needs to be disassembled, and then the two half-arc iron sheets can be separated to be replaced.
9. The air-wall intelligent hand dryer of claim 1, wherein: the middle of the top end of the airflow jet part is provided with a human body infrared sensor which vertically detects downwards, a human body signal monitored by the human body infrared sensor is processed by a controller, and the controller controls a driving circuit to enable the brushless motor to operate.
10. Wash basin, its characterized in that: an air-wall intelligent hand dryer as claimed in any one of claims 1 to 9 is installed.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201910984857.4A CN110584523A (en) | 2019-10-16 | 2019-10-16 | Air wall type intelligent hand dryer and wash basin |
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Application Number | Priority Date | Filing Date | Title |
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CN201910984857.4A CN110584523A (en) | 2019-10-16 | 2019-10-16 | Air wall type intelligent hand dryer and wash basin |
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CN110584523A true CN110584523A (en) | 2019-12-20 |
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CN201910984857.4A Withdrawn CN110584523A (en) | 2019-10-16 | 2019-10-16 | Air wall type intelligent hand dryer and wash basin |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111155916A (en) * | 2020-01-20 | 2020-05-15 | 华侨大学 | Air wall water blocking device |
CN111887757A (en) * | 2020-09-09 | 2020-11-06 | 夏新强 | Novel efficient annular hand dryer |
-
2019
- 2019-10-16 CN CN201910984857.4A patent/CN110584523A/en not_active Withdrawn
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111155916A (en) * | 2020-01-20 | 2020-05-15 | 华侨大学 | Air wall water blocking device |
CN111155916B (en) * | 2020-01-20 | 2024-07-23 | 华侨大学 | Air wall water blocking device |
CN111887757A (en) * | 2020-09-09 | 2020-11-06 | 夏新强 | Novel efficient annular hand dryer |
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Application publication date: 20191220 |
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