Air adjusting device and hand dryer comprising same

Abstract

The application discloses a wind adjusting device and a hand dryer comprising the same. The wind adjusting device is connected to an air outlet port of an external shell. The wind adjusting device comprises at least one wind adjusting assembly, which comprises a wind channel outer shell and a wind channel inner shell. A side wall of the wind channel outer shell has an air outlet opening, and an accommodating cavity is formed in the interior of the wind channel outer shell and communicates with the air outlet opening. The wind channel inner shell is located in the accommodating cavity, the interior of the wind channel inner shell is used for being connected to the air outlet port and communicating with the air outlet port, a side wall of the wind channel inner shell is formed with an air outlet slot which communicates with the interior of the wind channel inner shell, and the air outlet slot is matched with the air outlet opening. Wherein, under the action of an external force, one of the wind channel outer shell and the wind channel inner shell can rotate relative to the other. The hand dryer comprises the external shell and the wind adjusting device. The size, position and direction of the area communicating between the air outlet opening and the air outlet slot are adjustable, the hand dryer can be adjusted on demand, can adapt to different use requirements, and has a wide range of applications.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of hand drying, in particular to an air adjusting device and a hand dryer comprising the same.

BACKGROUND

[0002] The hand dryer is generally divided into two types: heating type and high-speed air blowing type. The hand dryer mainly by heating, usually the heating power is relatively large, more than 1000W, and the motor power is very small, less than 200W. The typical feature of this kind of hand dryer is that the air temperature is very high, and the water on the hand is taken away by the air with high temperature. This way is slow to dry the hands, usually more than 30 seconds. The feature of high-speed air type hand dryer is that the air speed is very high, which can reach more than 130m / s, and the drying speed is about 10 seconds. The heating power is also relatively low, only a few hundred watts. The heating function is only to maintain the comfort, which basically does not affect the drying speed. But the noise generated by high air speed is relatively large.

[0003] The hand dryer is widely used, and is generally applied in office buildings and public places. The installation mode is, for example, the wall-mounted type of Chinese appearance patent publication CN305747634S or the sink type structure of Chinese invention patent publication CN104427920A. However, these hand dryers are connected in the form of attachment on the wall or sink. The position of the hand dryer is fixed, which is not conducive to the user to adjust the use position. Moreover, the overall air source and flow channel of these hand dryers with attachment mode are complex, and the installation and replacement are difficult.

[0004] In addition, in the prior art, the air outlet position and direction of the air outlet of the hand dryer are usually fixed. Once the position of the hand dryer is fixed, the air outlet position and direction are also fixed, which cannot be adjusted as needed, and the application range is narrow.

[0005] Therefore, it is necessary to improve the prior art to overcome the defects in the prior art.

SUMMARY

[0006] The purpose of the present application is to provide an air adjusting device and a hand dryer comprising the same, so as to overcome the defects in the prior art that the air outlet position and direction of the hand dryer cannot be adjusted as needed and the application range is narrow.

[0007] The purpose of the present application is achieved by the following technical scheme:

[0008] An air adjusting device for connecting to the air outlet port of the external shell of a hand dryer, characterized in that the air adjusting device comprises at least one air adjusting assembly, and the air adjusting assembly comprises:

[0009] An air duct shell, the side wall of the air duct shell has an air outlet opening, and the inside has a containing cavity communicating with the air outlet opening;

[0010] a wind channel inner shell located in the accommodating cavity, an inner portion of the wind channel inner shell being configured to be connected to and communicate with the air outlet port, a side wall of the wind channel inner shell being formed with an air outlet slot in communication with the inner portion of the wind channel inner shell, the air outlet slot being adapted to the air outlet opening;

[0011] wherein one of the wind channel outer shell and the wind channel inner shell is rotatable relative to the other under the action of an external force.

[0012] In this scheme, the air outlet opening on the wind channel outer shell and the air outlet slot on the wind channel inner shell are adapted to each other, and the size and direction of the area in communication between the air outlet opening and the air outlet slot directly affect the air volume and air direction of the air adjusting device. Wherein, one of the wind channel outer shell and the wind channel inner shell is rotatable relative to the other under the action of an external force, which means that the size, position and direction of the area in communication between the air outlet opening and the air outlet slot are adjustable, so that the air volume and air direction can be adjusted as needed, and different use requirements can be met, and the application range is wide.

[0013] Preferably, the outer wall surface of the wind channel inner shell is fitted with the inner wall surface of the wind channel outer shell.

[0014] In this scheme, the above structure is adopted, and there is no air flow between the wind channel inner shell and the wind channel outer shell, which is conducive to improving the reliability of the air adjusting device, and is also conducive to improving the use effect of the hand dryer and improving the energy utilization rate.

[0015] Preferably, the wind channel inner shell and the wind channel outer shell both have a first end for being close to the air outlet port and a second end for being away from the air outlet port along the length direction.

[0016] Wherein, the second end of the wind channel inner shell is connected to a driving member, and the driving member is configured to provide the external force to the wind channel inner shell.

[0017] In this scheme, the external force is applied to the wind channel inner shell, that is, the wind channel inner shell rotates relative to the wind channel outer shell, and the wind channel outer shell is fixed, so that the position of the air outlet slot on the wind channel inner shell relative to the air outlet opening on the wind channel outer shell changes, and the size, position and direction of the area in communication between the air outlet slot and the air outlet opening also change accordingly, thereby realizing the adjustment of air volume and air direction.

[0018] Preferably, the area of the air outlet slot is smaller than the area of the air outlet opening, and the air outlet slot is located in the distribution area of the air outlet opening.

[0019] In the present scheme, the air outlet slot is located in the area covered by the air outlet opening, that is, when the air duct inner shell rotates relative to the air duct outer shell, the air outlet slot rotates in the area corresponding to the air outlet opening. At this time, the air outlet opening mainly provides a hollow space so that the air can be blown out, and the air outlet slot mainly adjusts the air direction and guides the air.

[0020] Preferably, the air duct inner shell and the air duct outer shell each have a first end for being close to the air outlet port and a second end for being away from the air outlet port along the length direction;

[0021] Preferably, the second end of the air duct outer shell is connected to a driving member, and the driving member is used to provide the external force to the air duct outer shell.

[0022] In the present scheme, the external force is applied to the air duct outer shell, that is, the air duct outer shell rotates relative to the air duct inner shell, and the air duct inner shell is fixed. In this way, the position of the air outlet opening on the air duct outer shell relative to the air outlet slot on the air duct inner shell changes, and the size, position and direction of the area where the air outlet slot and the air outlet opening communicate also change accordingly, so that the air volume and air direction can be adjusted.

[0023] Preferably, the area of the air outlet slot is greater than the area of the air outlet opening, and the air outlet opening is located in the distribution area of the air outlet slot.

[0024] In the present scheme, the air outlet opening is located in the area covered by the air outlet slot, that is, when the air duct outer shell rotates relative to the air duct inner shell, the air outlet opening rotates in the area corresponding to the air outlet slot. At this time, the air outlet slot mainly provides a hollow space so that the air can be blown to the air outlet opening, and the air outlet opening mainly adjusts the air direction and guides the air.

[0025] Preferably, the area of the air outlet slot is comparable to the area of the air outlet opening, and the air outlet slot and the air outlet opening at least partially coincide.

[0026] In the present scheme, whether the air duct inner shell rotates and the air duct outer shell is fixed or the air duct outer shell rotates and the air duct inner shell is fixed, the area and position where the air outlet slot and the air outlet opening coincide directly affect the air volume and air direction, that is, the air volume and air direction are adjusted by adjusting the area and position where the air outlet slot and the air outlet opening coincide. At this time, the air outlet slot and the air outlet opening jointly adjust the air direction and guide the air.

[0027] Preferably, the driving member is detachably connected to the second end of the air duct inner shell or the air duct outer shell.

[0028] In the present scheme, the connection between the driving member and the corresponding air duct inner shell or air duct outer shell is detachable, facilitating the installation and dismounting of the driving member, so that the replacement or maintenance of the driving member is facilitated, and the cleaning of other structural members (such as the air duct inner shell and the air duct outer shell) is facilitated.

[0029] Preferably, the driving member is a knob. The knob is used as the driving member, which is simple in structure and convenient to adjust.

[0030] Preferably, the air adjusting device further comprises a knob cover plate, which covers and is connected to the end face of the knob. On the one hand, the knob cover plate can protect the knob; on the other hand, the knob cover plate can shield and be aesthetically pleasing.

[0031] Preferably, the air duct inner shell comprises an upper inner shell cover and a lower inner shell cover which are spliced, and the side wall of the lower inner shell cover is provided with the air outlet slot, and at least one of the upper inner shell cover and the lower inner shell cover is used for connecting to the air outlet port. The air duct inner shell is formed by splicing two structural members, and the air duct inner shell is convenient to form.

[0032] Preferably, the upper inner shell cover and the lower inner shell cover are detachably connected, and the upper inner shell cover and the lower inner shell cover are sealingly connected.

[0033] In the present scheme, the upper inner shell cover and the lower inner shell cover are detachably connected, facilitating the cleaning and maintenance of the inside of the air duct inner shell. The splicing position of the upper inner shell cover and the lower inner shell cover is sealingly connected, preventing air leakage at the connection between the upper inner shell cover and the lower inner shell cover, which is conducive to ensuring the use effect of the hand dryer and improving the energy utilization rate.

[0034] Preferably, the inner side of the lower inner shell cover is provided with a plurality of first protrusions in the circumferential direction, and each first protrusion is provided with a first connecting hole;

[0035] The inner side of the upper inner shell cover is provided with a plurality of second protrusions in the circumferential direction, and each second protrusion is provided with a second connecting hole which penetrates the side wall of the corresponding upper inner shell cover;

[0036] The side wall of the upper inner shell cover is provided with an operation area at a position corresponding to the second connecting hole, and the operation area is recessed inwardly from the outer edge of the upper inner shell cover by more than the outer edge of the second connecting hole.

[0037] In the present scheme, the first protrusions and the second protrusions are located on the inner sides of the lower inner shell cover and the upper inner shell cover, respectively, which does not occupy the space in the height direction of the air duct inner shell, which is conducive to reducing the space occupied by the air duct inner shell and does not easily affect other operations at the splicing position of the upper inner shell cover and the lower inner shell cover, such as sealing arrangement.

[0038] A hand dryer comprises an outer casing with an air outlet port, characterized in that the hand dryer further comprises the air direction adjusting device, and the air duct inner casing is connected to the air outlet port.

[0039] In the present application, the air direction adjusting device can adjust the air direction and air volume, so the hand dryer with the air direction adjusting device can adjust the air direction and air volume according to different use requirements, thereby being suitable for different use requirements and having a wide range of applications.

[0040] Preferably, the outer casing has a separate structure.

[0041] The hand dryer further comprises:

[0042] An air outlet port cover plate covering and connected to the air outlet port.

[0043] An internal air source arranged inside the outer casing.

[0044] An upward flow channel guiding the air flow generated by the internal air source from bottom to top.

[0045] A turning casing connected to the top side wall of the outer casing, the turning casing having a turning flow channel therein, the turning flow channel being in communication with the upper end of the upward flow channel and turning the air flow from the upward flow channel, and the air outlet port being located at the end of the turning flow channel away from the outer casing.

[0046] A damping sleeve located inside the outer casing and sleeved on the outside of the internal air source.

[0047] In the present application, the outer casing of the hand dryer has a separate structure, the internal air source and the upward flow channel are integrated, the turning casing and the air direction adjusting device for turning, adjusting air and air outlet are directly connected to the outer casing, and the air direction adjusting and air outlet can be realized without being attached to other structures. When in use, the hand dryer can be simply placed on a flat table, thereby being easy to install and being able to adjust the fixed position of the hand dryer and the air outlet volume and direction by operating the air direction adjusting device, so as to adapt to various use requirements, thereby being applicable not only to public places but also to home use. In addition, the damping sleeve can also reduce noise, thereby being beneficial to ensuring the use experience of the user and reducing the influence on the external environment.

[0048] Compared with the prior art, the air adjusting device has the advantages that one of the air duct outer shell and the air duct inner shell can rotate relative to the other under the action of an external force, the size, position and direction of the area communicating between the air outlet opening and the air outlet slot are adjustable, thus the air adjusting device can be adjusted as needed and can adapt to different use requirements, and the application range is wide. Accordingly, the hand dryer comprising the air adjusting device can adapt to different use requirements and has a wide application range. BRIEF DESCRIPTION OF DRAWINGS

[0049] Figure 1 is a structural schematic view of the hand dryer of embodiment 1 of the present application.

[0050] Figure 2 is another structural schematic view of the hand dryer of embodiment 1 of the present application.

[0051] Figure 3 is still another structural schematic view of the hand dryer of embodiment 1 of the present application.

[0052] Figure 4 is a structural schematic view of the upper cover of the inner shell of the hand dryer of embodiment 1 of the present application.

[0053] Figure 5 is another structural schematic view of the upper cover of the inner shell of the hand dryer of embodiment 1 of the present application.

[0054] Figure 6 is a structural schematic view of the lower cover of the inner shell of the hand dryer of embodiment 1 of the present application.

[0055] Figure 7 is another structural schematic view of the lower cover of the inner shell of the hand dryer of embodiment 1 of the present application.

[0056] Figure 8 is a structural schematic view of the air duct outer shell of the hand dryer of embodiment 1 of the present application.

[0057] BRIEF DESCRIPTION OF DRAWINGS

[0058] 10 external shell

[0059] 20 steering shell

[0060] 201 steering flow channel

[0061] 202 air outlet port

[0062] 30 internal air source

[0063] 40 upward flow channel

[0064] 50 air adjusting assembly

[0065] 501 air duct inner shell

[0066] 502 Duct Housing

[0067] 503 Inner Shell Top Cover

[0068] 504 Inner Shell Lower Cover

[0069] 505 air outlet

[0070] 506 Air vent seam

[0071] 507 drive unit

[0072] 508 Knob Cover

[0073] 509 First protrusion

[0074] 510 Second protrusion

[0075] 511 Operating Area

[0076] 512 Second connecting hole

[0077] 513 First connecting hole

[0078] 60 Air outlet cover

Detailed Implementation Methods

[0079] Example 1

[0080] like Figures 1-8 As shown, this embodiment discloses an air-regulating device and a hand dryer including the same. The hand dryer includes an outer housing 10 with an air outlet 202, and also includes an air-regulating device connected to the air outlet 202. The air-regulating device includes at least one air-regulating component 50, and the air-regulating component 50 includes a duct outer shell 502 and a duct inner shell 501. The sidewall of the duct outer shell 502 has an air outlet opening, and the interior has a receiving cavity communicating with the air outlet opening. The duct inner shell 501 is located within the receiving cavity, and the interior of the duct inner shell 501 is used to connect to and communicate with the air outlet 202. The sidewall of the duct inner shell 501 forms an air outlet slit 506 communicating with the interior of the duct inner shell 501 (see main reference). Figure 3 and Figure 7 The air outlet slit 506 is adapted to the air outlet opening. Under the action of external force, one of the air duct outer shell 502 and the air duct inner shell 501 can rotate relative to the other.

[0081] In the embodiment, the air outlet opening 505 on the air duct outer shell 502 and the air outlet slot 506 on the air duct inner shell 501 are matched, and the size and direction of the area connected between the air outlet opening 505 and the air outlet slot 506 directly affect the air volume and air direction of the air adjusting device. Wherein, under the action of external force, one of the air duct outer shell 502 and the air duct inner shell 501 can rotate relative to the other, which means that the size, position and direction of the area connected between the air outlet opening 505 and the air outlet slot 506 are adjustable, so that the adjustment on demand can be realized, and different use requirements can be adapted, and the application range is wide.

[0082] Regarding the matching of the air outlet slot 506 and the air outlet opening 505, the following needs to be explained: matching means matching and matching, and specifically to the air outlet opening 505 and the air outlet slot 506, which means that the cross-sectional size and shape of the air outlet opening 505 and the air outlet slot 506 are matched, and the two can be matched to provide an air outlet channel.

[0083] It should be noted that in the present embodiment, the hand dryer comprises two air adjusting assemblies 50, and the two air adjusting assemblies 50 are symmetrically arranged. In other alternative embodiments, the air adjusting assembly 50 can also be arranged as only one, or three or more.

[0084] In the present embodiment, the outer wall surface of the air duct inner shell 501 is fitted with the inner wall surface of the air duct outer shell 502. In this way, there is no air flow between the air duct inner shell 501 and the air duct outer shell 502, which is beneficial to improve the reliability of the air adjusting device, and is also beneficial to improve the use effect of the hand dryer, and is also beneficial to improve the energy utilization rate.

[0085] As shown in Figures 1-8 The air duct inner shell 501 and the air duct outer shell 502 have a first end for being close to the air outlet port 202 and a second end for being away from the air outlet port 202 along the length direction. Wherein, the second end of the air duct inner shell 501 is connected to the driving member 507, and the driving member 507 is used to provide external force to the air duct inner shell 501.

[0086] Wherein, the external force is applied to the air duct inner shell 501, that is, the air duct inner shell 501 rotates relative to the air duct outer shell 502, and the air duct outer shell 502 is fixed, in this way, the position of the air outlet slot 506 on the air duct inner shell 501 relative to the air outlet opening 505 on the air duct outer shell 502 changes, and the size, position and direction of the area connected between the air outlet slot 506 and the air outlet opening 505 also change accordingly, so that the air volume and air direction can be adjusted.

[0087] In the present embodiment, the area of the air outlet slot 506 is smaller than the area of the air outlet opening 505, and the air outlet slot 506 corresponds to the distribution area of the air outlet opening 505.

[0088] The air outlet slot 506 is located in the area covered by the air outlet opening 505, that is, when the air duct inner shell 501 rotates relative to the air duct outer shell 502, the air outlet slot 506 rotates in the area corresponding to the air outlet opening 505. At this time, the air outlet slot 506 mainly plays a role in adjusting the air direction and guiding the air, and the air outlet opening 505 mainly provides a hollow space to enable the air to be blown out.

[0089] In an alternative embodiment, the area of the air outlet slot 506 can be equivalent to the area of the air outlet opening 505, and the air outlet slot 506 and the air outlet opening 505 at least partially overlap. The area and position of the overlap between the air outlet slot 506 and the air outlet opening 505 directly affect the air volume and the air direction, that is, the air volume and the air direction are adjusted by adjusting the area and position of the overlap between the air outlet slot 506 and the air outlet opening 505. At this time, the air outlet slot 506 and the air outlet opening 505 jointly play a role in adjusting the air direction and guiding the air.

[0090] In the present embodiment, the driving member 507 is detachably connected to the second end of the air duct inner shell 501. The connection between the driving member 507 and the corresponding air duct inner shell 501 or air duct outer shell 502 is detachable, which facilitates the installation and disassembly of the driving member 507. Thus, it is convenient to replace or maintain the driving member 507, and it is also convenient to clean other structural members (such as the air duct inner shell 501 and the air duct outer shell 502).

[0091] As shown in Figures 2-3 , the driving member 507 is a knob. The knob is used as the driving member 507, which is simple in structure and convenient to adjust.

[0092] The air adjusting device further comprises a knob cover plate 508, which covers and is connected to the end face of the knob. On the one hand, the knob cover plate 508 can protect the knob. On the other hand, the knob cover plate 508 can play a shielding role and be aesthetically pleasing.

[0093] As shown in Figures 3-7 , the air duct inner shell 501 comprises an upper inner shell cover 503 and a lower inner shell cover 504 which are spliced together. The side wall of the lower inner shell cover 504 is provided with an air outlet slot 506, and at least one of the upper inner shell cover 503 and the lower inner shell cover 504 is used to be connected to the air outlet port 202. The air duct inner shell 501 is formed by splicing two structural members, and the air duct inner shell 501 is conveniently formed.

[0094] In the embodiment, the inner shell upper cover 503 and the inner shell lower cover 504 are detachably connected, and the inner shell upper cover 503 and the inner shell lower cover 504 are sealingly connected. The inner shell upper cover 503 and the air duct lower shell are detachably connected, which facilitates cleaning and maintenance of the inside of the air duct inner shell 501. The splicing position of the inner shell upper cover 503 and the inner shell lower cover 504 is sealingly connected, which prevents air leakage at the connection between the inner shell upper cover 503 and the inner shell lower cover 504, is conducive to ensuring the use effect of the hand dryer, and is also conducive to improving the energy utilization rate.

[0095] As shown in Figures 4-7 , the inner side of the inner shell lower cover 504 is provided with a plurality of first protruding portions 509 in the circumferential direction, and each first protruding portion 509 is provided with a first connecting hole 513. The inner side of the inner shell upper cover 503 is provided with a plurality of second protruding portions 510 in the circumferential direction, and each second protruding portion 510 is provided with a second connecting hole 512, and the second connecting hole 512 penetrates the side wall of the corresponding inner shell upper cover 503.

[0096] Among them, the first protruding portion 509 and the second protruding portion 510 are located on the inner side of the inner shell lower cover 504 and the inner shell upper cover 503, which does not occupy the space in the height direction of the air duct inner shell 501, which is conducive to reducing the space occupied by the air duct inner shell 501, and is not easy to affect other operations at the splicing position of the inner shell upper cover 503 and the inner shell lower cover 504, such as sealing arrangement.

[0097] As shown in Figure 5 , the side wall of the inner shell upper cover 503 is provided with an operation area 511 at a position corresponding to the second connecting hole 512, and the operation area 511 is recessed inward from the outer edge of the inner shell upper cover 503 at least to beyond the outer edge of the second connecting hole 512. Among them, Figure 5 only the structure of the inner shell upper cover 503 is schematically shown, and actually a plurality of operation areas 511 are provided in the circumferential direction of the inner shell upper cover 503, and the plurality of operation areas 511 correspond to the plurality of second connecting holes 512.

[0098] Among them, the operation area 511 extends at least to cover the second connecting hole 512 on the second protruding portion 510, and the operation area 511 provides an operation space, which facilitates the installation and removal of a connecting piece for connecting the inner shell upper cover 503 and the inner shell lower cover 504.

[0099] As above, since the air adjusting device can adjust the wind direction and the air volume, the hand dryer with the air adjusting device can adjust the wind direction and the air volume according to different use requirements, so as to adapt to different use requirements and have a wide range of applications.

[0100] Referring to Figures 1-3It should be understood that the external shell 10 has an independent structure. The hand dryer further comprises an air outlet port cover plate 60, an internal air source 30, an upward flow channel 40, a diversion shell 20 and a damping sleeve. The air outlet port cover plate 60 covers and is connected to the air outlet port 202. The internal air source 30 is arranged inside the external shell 10. The upward flow channel 40 guides the airflow generated by the internal air source 30 upward. The diversion shell 20 is connected to the top side wall of the external shell 10, and the diversion shell 20 has a diversion flow channel 201 therein, which is in communication with the upper end of the upward flow channel 40 and diverts the airflow from the upward flow channel 40. The air outlet port 202 is located at the end of the diversion flow channel 201 away from the external shell 10. The damping sleeve is located inside the external shell 10 and surrounds the outside of the internal air source 30.

[0101] Figure 1 The airflow direction in the hand dryer is shown. In this embodiment, the airflow is generated by the internal air source 30 and guided upward by the upward flow channel 40. The diversion flow channel 201 in the diversion shell 20 diverts the airflow from the upward direction to the horizontal direction, and then guides the airflow to both sides in the horizontal direction, so as to guide the airflow to the air outlet port 202 and flow to the air adjusting device through the air outlet port 202. Finally, the air adjusting device sprays the airflow downward as shown by the dashed arrow.

[0102] As shown in Figure 1 , the internal air source 30 of this embodiment is mainly used to provide airflow and can be a fan, a gas pump or other existing device that can generate airflow. The internal air source 30 is fixed inside the external shell 10 and can be driven by an external power source or a built-in power source. The start and stop of the internal air source 30 can be controlled by a control unit. The approach of the user's hand can be sensed by a sensor arranged on the air adjusting device, so as to control the start of the internal air source 30.

[0103] In this embodiment, the external shell 10 of the hand dryer has an independent structure, and the internal air source 30 and the upward flow channel 40 are integrated. The diversion shell 20 and the air adjusting device for diversion, air adjustment and air outlet are directly connected to the external shell 10, and the air adjustment and air outlet can be realized without being attached to other structures. When in use, the hand dryer can be simply placed on a flat table, which is convenient to install and can be adjusted in position at any time and the air volume and air direction can be adjusted by operating the air adjusting device, so as to adapt to various use requirements. Therefore, the hand dryer can be applied not only in public places but also in families. In addition, the damping sleeve can also reduce noise, which is beneficial to ensure the user's experience and reduce the influence on the external environment.

[0104] Embodiment 2

[0105] The embodiment provides another air adjusting device and a hand dryer comprising the same, and the air adjusting device and the corresponding hand dryer in the embodiment are basically same as those in the embodiment 1, and the difference mainly lies in the relative rotation characteristics of the air duct inner shell 501 and the air duct outer shell 502. In the embodiment, the air duct outer shell 502 rotates relative to the air duct inner shell 501, and the air duct inner shell 501 is fixed. Wherein, the same reference numerals in the embodiment and the embodiment 1 refer to the same elements.

[0106] Specifically, the air duct inner shell 501 and the air duct outer shell 502 both have a first end for being close to the air outlet port 202 and a second end for being away from the air outlet port 202 along the length direction. Wherein, the second end of the air duct outer shell 502 is connected to the driving member 507, and the driving member 507 is used for providing an external force to the air duct outer shell 502.

[0107] Wherein, the external force is applied to the air duct outer shell 502, that is, the air duct outer shell 502 rotates relative to the air duct inner shell 501, and the air duct inner shell 501 is fixed, so that the position of the air outlet opening 505 on the air duct outer shell 502 changes relative to the air outlet slot 506 on the air duct inner shell 501, and the size, position and direction of the area where the air outlet slot 506 and the air outlet opening 505 communicate also change accordingly, so that the air volume and the air direction can be adjusted.

[0108] In the embodiment, the area of the air outlet slot 506 is larger than the area of the air outlet opening 505, and the air outlet opening 505 corresponds to the distribution area of the air outlet slot 506.

[0109] Wherein, the air outlet opening 505 is located in the area covered by the air outlet slot 506, that is, when the air duct outer shell 502 rotates relative to the air duct inner shell 501, the air outlet opening 505 rotates in the area corresponding to the air outlet slot 506, at this time, the air outlet opening 505 mainly plays a role of adjusting the air direction and guiding the air, and the air outlet slot 506 mainly provides a hollow space to enable the air to blow to the air outlet opening 505.

[0110] Similar to the above embodiment 1, in other alternative embodiments, the area of the air outlet slot 506 can be equivalent to the area of the air outlet opening 505, and the air outlet slot 506 and the air outlet opening 505 at least partially coincide. Wherein, the area and position of the air outlet slot 506 and the air outlet opening 505 coincide directly affect the air volume and the air direction, that is, the air volume and the air direction are adjusted by adjusting the area and position of the air outlet slot 506 and the air outlet opening 505 coincide with each other, at this time, the air outlet slot 506 and the air outlet opening 505 jointly play a role of adjusting the air direction and guiding the air.

[0111] Although the specific embodiments of the present application have been described above, it is understood by those skilled in the art that the present application is only illustrated by way of example, and the scope of protection of the present application is defined by the appended claims. Those skilled in the art can make various changes or modifications to the embodiments without departing from the principles and essence of the present application, and such changes and modifications fall within the scope of protection of the present application.

Claims

1. An air adjusting device for connection to an air outlet port of an external housing of a hand dryer, characterized in that, The air adjusting device comprises at least one air adjusting assembly, which comprises: an air duct outer shell, a side wall of the air duct outer shell having an air outlet opening, an inner portion of the air duct outer shell having a receiving cavity in communication with the air outlet opening; an air duct inner shell, the air duct inner shell being located in the receiving cavity, an inner portion of the air duct inner shell being configured to be connected to and in communication with the air outlet port, a side wall of the air duct inner shell being formed with an air outlet slot in communication with the inner portion of the air duct inner shell, the air outlet slot being adapted to the air outlet opening; wherein, under the action of an external force, one of the air duct outer shell and the air duct inner shell is rotatable relative to the other; the air duct outer shell and the air duct inner shell each have a first end for being close to the air outlet port and a second end for being away from the air outlet port along a length direction, the first end of the air duct inner shell being configured to be connected to the air outlet port; the second end of the air duct inner shell is connected to a driving member, the driving member being configured to provide the external force to the air duct inner shell; or, the second end of the air duct outer shell is connected to a driving member, the driving member being configured to provide the external force to the air duct outer shell.

2. The air adjusting device according to claim 1, wherein: an outer wall surface of the air duct inner shell is fitted to an inner wall surface of the air duct outer shell.

3. The air adjusting device according to claim 1, wherein: the second end of the air duct inner shell is connected to the driving member, an area of the air outlet slot is less than an area of the air outlet opening, and the air outlet slot is located in a distribution area of the air outlet opening.

4. The air adjusting device according to claim 1, wherein: the second end of the air duct outer shell is connected to the driving member, an area of the air outlet slot is greater than an area of the air outlet opening, and the air outlet opening is located in a distribution area of the air outlet slot.

5. The air adjusting device according to claim 1, wherein: an area of the air outlet slot is comparable to an area of the air outlet opening, and the air outlet slot and the air outlet port at least partially overlap.

6. The air adjusting device according to claim 1, wherein: the driving member is detachably connected to the second end of the air duct inner shell or the air duct outer shell.

7. The air adjusting device according to claim 1, wherein: the driving member is a knob.

8. The air regulating device of claim 7, wherein: the air adjusting device further comprises a knob cover plate, the knob cover plate being arranged on and connected to an end surface of the knob.

9. The air adjusting device according to claim 1, wherein: the air duct inner shell comprises an upper inner shell cover and a lower inner shell cover which are spliced together, a side wall of the lower inner shell cover is provided with the air outlet slot, and at least one of the upper inner shell cover and the lower inner shell cover is configured to be connected to the air outlet port.

10. The air regulating device of claim 9, wherein: the upper inner shell cover and the lower inner shell cover are detachably connected and sealingly connected.

11. The air regulating device of claim 10, wherein: a plurality of first protrusions are arranged on an inner side of the lower inner shell cover in a circumferential direction, and a first connecting hole is arranged on each of the first protrusions; a plurality of second protrusions are arranged on an inner side of the upper inner shell cover in a circumferential direction, and a second connecting hole is arranged on each of the second protrusions, the second connecting hole penetrating through a side wall of the corresponding upper inner shell cover; wherein, an operating area is arranged at a position of the side wall of the upper inner shell cover corresponding to the second connecting hole, and the operating area is recessed inwardly from an outer edge of the upper inner shell cover by more than an outer edge of the second connecting hole.

12. A hand dryer comprising an outer housing having an air outlet port, characterized in that, the hand dryer further comprises the air adjusting device according to any one of claims 1-11, and the air duct inner shell is connected to the air outlet port.

13. The hand dryer of claim 12, wherein: the outer shell has an independent structure; the hand dryer further comprises: an air outlet port cover plate, the air outlet port cover plate covering and being connected to the air outlet port; an internal air source disposed inside the outer housing; an upflow channel that directs air flow generated by the internal air source upwardly from below; a diversion housing connected to a top side wall of the outer housing, the diversion housing having a diversion channel therein that is in communication with an upper end of the upflow channel and diverts air flow from the upflow channel, the air outlet port being located at an end of the diversion channel distal from the outer housing; and a vibration reduction sleeve located inside the outer housing, the vibration reduction sleeve being sleeved over the external air source.

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