CN216557664U - Blowing accessory and blowing device - Google Patents

Abstract

The utility model discloses a blowing accessory and a blowing device. The accessory of blowing includes the inner shell, is provided with the air outlet on the inner shell, and the shell, the inner shell is installed in the inside of shell, has the air exit that sets up with the air outlet intercommunication on the shell, forms closed thermal gap between the inner shell and the shell between the two, and seal structure, seal structure's at least partly setting are between inner shell and shell, and seal structure encloses into confined closed thermal gap with inner shell and shell cooperation. The blowing accessory and the blowing device disclosed by the utility model can solve the problem that the blowing device in the prior art is poor in use efficiency.

Description

Blowing accessory and blowing device

Technical Field

The utility model belongs to the technical field related to electric equipment, and particularly relates to a blowing accessory and a blowing device.

Background

Along with the continuous renewal of electric equipment, people also are more and more high to blast apparatus's requirement, and blast apparatus generally comprises handle and the accessory that blows promptly the head of blowing, and blast apparatus on the market mainly produces wind through the fan then is discharged by the air outlet, and when needs hot-blast, the accessible heated air is in order to blow hot-blast.

However, when the existing blowing accessory blows hot air, the temperature of the outer surface of the blowing accessory rises, so that the operation is inconvenient, the user experience is not good, and the use efficiency of the blowing device is reduced.

Accordingly, there is a need for improvements in the art that overcome the deficiencies in the prior art.

SUMMERY OF THE UTILITY MODEL

Therefore, the technical problem to be solved by the utility model is that the blowing device in the prior art has poor use efficiency.

In order to solve the technical problem, the utility model provides a blowing accessory. The accessory of blowing includes the inner shell, is provided with the air outlet on the inner shell, and the shell, the inner shell is installed in the inside of shell, has the air exit that sets up with the air outlet intercommunication on the shell, forms closed thermal gap between the inner shell and the shell between the two, and seal structure, seal structure's at least partly setting are between inner shell and shell, and seal structure encloses into confined closed thermal gap with inner shell and shell cooperation.

Optionally, the inner shell comprises an inner shell body, the inner shell body is provided with an air passing channel, an opening at one end of the air passing channel is an air outlet, and an opening at the other end of the air passing channel is an inner shell mounting opening; the mounting panel of the air guide assembly is arranged at the mounting opening of the inner shell, and the mounting panel and the inner shell body form a ventilation cavity in an enclosing mode; air inlet channel, air inlet channel are connected with the bottom surface of inner shell body, and air inlet channel and ventilation chamber intercommunication set up.

Optionally, the area of the air outlet is smaller than the area of the inner shell mounting opening.

Optionally, the blowing accessory further comprises a first air guide plate, one end of the first air guide plate is connected with the mounting panel, the other end of the first air guide plate extends towards the air outlet, the first air guide plate inclines towards one side face of the inner shell body to form a first air guide cavity, and the first air guide cavity is communicated with the air inlet channel; the one end and the installation panel of second induced air board are connected, and the other end of second induced air board extends towards the air outlet, and second induced air board inclines towards another side of inner shell body to form second induced air chamber, second induced air chamber and inlet air duct intercommunication setting.

Optionally, the air guide assembly further comprises an arc-shaped air guide plate installed inside the air passing channel, the air guide plate is arranged in a protruding mode towards the direction far away from the center of the air passing channel, one end of the air guide plate is connected with the installation panel, the other end of the air guide plate extends towards the air outlet, and the surface, far away from the air inlet channel, of the air guide plate is abutted to the top surface of the inner shell body; and/or the air deflector is arranged on the inner surface of the inner shell assembly, one end of the air deflector is abutted to the mounting panel, the other end of the air deflector extends towards the air outlet, and the surface of the air deflector, which is far away from the air inlet channel, is abutted to the top surface of the inner shell body.

Optionally, the air deflector has a first arc, the first arc being less than 90 degrees.

Optionally, the sealing structure includes a first sealing ring, which is disposed along a circumferential direction of the mounting panel and is mounted between the mounting panel and the inner shell body in an abutting manner; the first gasket is arranged between the installation part and the installation panel.

Optionally, the closed thermal gap includes a first closed thermal gap and a second closed thermal gap, the outer shell includes an outer shell body, the outer shell body has an annular channel, the inner shell body of the inner shell is mounted inside the annular channel, and the outer shell body and the inner shell body are spaced to form the first closed thermal gap; the front cover is connected with the outer shell body and is blocked at an opening at one end of the annular channel, an air outlet communicated with the air outlet is formed in the front cover, and the front cover is abutted against the end face, far away from the mounting opening, of the inner shell body of the inner shell; the rear cover is connected with the outer shell body and blocks the opening at the other end of the annular channel, and the rear cover and the mounting panel of the air guide assembly of the inner shell are arranged at intervals to form a second heat-sealing gap; the installation channel is arranged on the outer shell body, and at least one part of the air inlet channel of the inner shell is accommodated in the installation channel and is arranged at intervals with the installation channel.

Optionally, the sealing structure includes a second sealing ring, the second sealing ring is disposed between the front cover and the inner shell body in an abutting manner, the second sealing ring, the front cover and the inner shell body are matched to form an air outlet channel, and the air outlet channel is disposed in an isolated manner from the first heat-sealing gap and the second heat-sealing gap; the third sealing ring is arranged between the air inlet channel and the mounting channel in an abutting mode, a mounting groove is formed in the outer wall surface of the air inlet channel and/or the inner wall surface of the mounting channel, the third sealing ring is contained inside the mounting groove, and the second sealing ring and the third sealing ring are matched with the inner shell and the outer shell to form a first heat-sealing gap and a second heat-sealing gap.

The utility model also provides a blowing device. The blowing device comprises the blowing accessory and a handle assembly, the handle assembly and the blowing accessory are detachably connected and arranged, the handle assembly is provided with an installation space, the power piece is installed in the installation space, the power piece is provided with an output port, the output port is communicated with an air inlet channel of the blowing accessory, and the power piece is used for supplying air to the blowing accessory; and the control system is controlled and installed in the installation space and is electrically connected with the power part.

Optionally, the sealing structure of the blowing fitting further comprises a fourth sealing ring, and the fourth sealing ring is abutted between the output port and the air inlet channel.

The technical scheme provided by the utility model has the following advantages:

the blowing accessory provided by the utility model comprises an inner shell and an outer shell, wherein the inner shell is provided with an air outlet, the outer shell is provided with an air outlet communicated with the air outlet on the inner shell, a heat-closed gap is formed between the inner shell and the outer shell, the blowing accessory is also provided with a sealing structure, at least one part of the sealing structure is arranged between the inner shell and the outer shell, the sealing structure, the inner shell and the outer shell are matched to form a closed heat-closed gap, the blowing accessory is provided with the inner shell and the outer shell to form a double-layer shell structure, the heat-closed gap is formed between the inner shell and the outer shell, the heat transfer is effectively isolated by the heat-closed gap, the problem that the use is influenced when the blowing accessory blows hot air is avoided, the use efficiency is improved, and the user experience is increased.

The handle of the blowing device is detachably connected with the blowing accessory, so that the blowing accessory or the handle can be conveniently detached and replaced independently, and operability is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a schematic perspective view of a blowing accessory provided in embodiment 1 of the present invention;

fig. 2 is a front view of a blowing fitting provided in embodiment 1 of the present invention;

FIG. 3 is a sectional view taken along line A-A of FIG. 2;

fig. 4 is a rear view of a blowing fitting provided in embodiment 1 of the present invention;

fig. 5 is a schematic perspective view of a blowing accessory provided in embodiment 1 of the present invention in a state without a front cover;

fig. 6 is a schematic perspective view of a housing-free body and an installation channel of the blowing accessory provided in embodiment 1 of the present invention;

fig. 7 is a schematic perspective view of an air guide assembly according to embodiment 1 of the present invention.

Description of reference numerals:

100-a housing; 101-a housing body; 102-a front cover; 1021-air outlet; 103-installing a channel; 104-rear cover; 200-an inner shell; 201-inner shell body; 2011-air outlet; 202-an air guide component; 2021-mounting a panel; 2022-wind deflector; 203-air inlet channel; 2031-mounting groove; 300-a first seal ring; 400-a first shim; 500-a second seal ring; 600-second closed thermal gap; 700-a first induced draft plate; 701-a first induced draft cavity; 800-a second induced draft plate; 801-a second draft chamber; 900-first closed thermal gap.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. The utility model will be described in detail hereinafter with reference to the accompanying drawings in conjunction with embodiments. It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.

It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.

In the present invention, unless specified to the contrary, use of the terms of orientation such as "upper, lower, top, bottom" or the like, generally refer to the orientation as shown in the drawings, or to the component itself in a vertical, perpendicular, or gravitational orientation; likewise, for ease of understanding and description, "inner and outer" refer to the inner and outer relative to the profile of the components themselves, but the above directional words are not intended to limit the utility model.

The utility model solves the problem of poor use efficiency of the blowing device in the prior art.

Example 1

The embodiment provides a blowing accessory. As shown in fig. 1 to 7, the blowing accessory includes an inner housing 200, an outer housing 100, and a sealing structure, an air outlet 2011 is provided on the inner housing 200, the inner housing 200 is installed inside the outer housing 100, an air outlet 1021 communicated with the air outlet 2011 is provided on the outer housing 100, a heat-sealing gap is formed between the inner housing 200 and the outer housing 100, at least a part of the sealing structure is provided between the inner housing 200 and the outer housing 100, and the sealing structure, the inner housing 200 and the outer housing 100 cooperate to form a closed heat-sealing gap.

Specifically, the accessory of blowing is through setting up the structure of inner shell 200 and shell 100 in order to form double-deck casing to form closed heat clearance between inner shell 200 and shell 100, closed heat clearance is effectual isolated thermal transmission, can lead to influencing the problem of use when having avoided the accessory of blowing to blow the hot-blast, has improved the availability factor, has increased user experience and has felt.

Further, when the blowing fitting is used for blowing, since the thermal gap is formed between the inner case 200 and the outer case 100, the blowing fitting can be directly grasped by a hand if necessary, so as to improve the blowing efficiency of the blowing fitting.

It should be noted that wind flows in the inner casing 200 of the blowing fitting, and thus wind noise is generated, and when the wind noise is large enough or continues for a long enough time, the wind noise affects hearing of people. Therefore, enough noise reduction sponge is placed in the closed thermal gap, so that the noise reduction effect can be achieved.

Of course, the noise is not limited to the mode of arranging the noise reduction sponge in the closed thermal gap, and the noise reduction effect can be achieved by adding other materials to the structural member.

As shown in fig. 5 to 7, the inner casing 200 includes an inner casing body 201, an air guiding assembly 202 and an air inlet channel 203, the inner casing body 201 has an air passing channel, an opening at one end of the air passing channel is an air outlet 2011, and an opening at the other end of the air passing channel is an inner casing mounting port; the mounting panel 2021 of the air guide assembly 202 is arranged at the mounting opening of the inner shell, and the mounting panel 2021 and the inner shell body 201 enclose a ventilation cavity; the air inlet channel 203 is connected with the bottom surface of the inner shell body 201, and the air inlet channel 203 is communicated with the ventilation cavity.

Specifically, inner shell body 201 has the wind passageway of crossing, and the one end of installing port in the wind passageway is crossed in the shutoff of installation panel 2021 of air guide assembly 202 is in order to enclose into the ventilation chamber, and the ventilation chamber is used for the wind-guiding to make the wind that enters into the inside in ventilation chamber discharge by air outlet 2011, realize the guide effect to wind, conveniently blow out the wind orientation in the inside in ventilation chamber, in order to reach the effect of blowing out the hair style.

Further, inlet channel 203 is connected to the bottom surface of inner shell body 201, and set up with inlet channel 203 intercommunication, wind enters into the inside of crossing the wind passageway by inlet channel 203, and the air outlet 2011 department discharge ventilation chamber by crossing the wind passageway, wherein, inlet channel 203 and cross wind passageway sealing connection, in order to avoid wind to have wind to reveal when entering into the inside in ventilation chamber by inlet channel 203, in order to influence wind effect, lead to the not enough problem of wind-force that appears air outlet 2011 department.

As shown in fig. 5, the area of the air outlet 2011 is smaller than the area of the inner case mounting port.

Specifically, the one end of crossing a set of relative lateral wall face of wind passageway and gathering together the setting towards air outlet 2011, cross the setting of a set of relative lateral wall face of wind passageway at least partly slope promptly, so that the area of air outlet 2011 of wind passageway is less than the area of installing port, the internal face that the slope set up simultaneously can play the effect of wind-guiding, conveniently enter into the wind of the inside in ventilation chamber and gather together and discharge in air outlet 2011 department under the guide effect of wall including, the wind after gathering together has higher wind-force and wind pressure, in order to reach better effect of blowing out the design, use efficiency is improved.

As shown in fig. 3, the blowing accessory further includes a first air-inducing plate 700 and a second air-inducing plate 800, one end of the first air-inducing plate 700 is connected to the mounting panel 2021, the other end of the first air-inducing plate 700 extends toward the air outlet 2011, the first air-inducing plate 700 is inclined toward one side of the inner casing body 201 to form a first air-inducing cavity 701, the first air-inducing cavity 701 is communicated with the air inlet channel 203, one end of the second air-inducing plate 800 is connected to the mounting panel 2021, the other end of the second air-inducing plate 800 extends toward the air outlet 2011, the second air-inducing plate 800 is inclined toward the other side of the inner casing body 201 to form a second air-inducing cavity 801, and the second air-inducing cavity 801 is communicated with the air inlet channel 203.

Specifically, the wind of air inlet channel 203 enters into the inside of first induced air chamber 701 and second induced air chamber 801 to the induced air chamber is discharged by air outlet 2011 under the induced air effect of induced air board, under the effect of first induced air board 700 and second induced air board 800, separate the processing with the chamber that ventilates, and further reduce the area of air outlet 2011 under the effect of first induced air board 700 and second induced air board 800, strengthened the effect of gathering together of air outlet 2011 department wind, further strengthened the effect of blowing of the accessory of blowing, improve the availability factor.

Certainly, when the air blowing accessory needs to be provided with more air outlets 2011, more air guide plates can be arranged inside the ventilation cavity, adjacent air guide plates are matched with the mounting panel 2021 to form an air guide cavity, the air guide cavity is communicated with the air inlet channel 203, and one ends of the two adjacent air guide plates facing the air outlets 2011 are close to each other to form a new air outlet.

In this embodiment, the wind guiding assembly 202 further includes an arc-shaped wind guiding plate 2022 installed inside the wind passing channel, and the wind guiding plate 2022 is disposed to be raised in a direction away from the center of the wind passing channel, and two different embodiments are provided according to the installation position of the wind guiding plate 2022, which is as follows.

In the embodiment shown in fig. 7, one end of the air deflector 2022 is connected to the mounting panel 2021, the other end of the air deflector 2022 extends toward the air outlet 2011, and the surface of the air deflector 2022 away from the air inlet channel 203 abuts against the top surface of the inner casing body 201.

Specifically, the air deflector 2022 is arranged to enable the air entering the air passing channel to flow along the air deflector 2022, so that the phenomenon that the air collides with the top surface of the inner shell body 201 to obstruct the flow of the air is avoided, and the air deflector 2022 is arranged to enhance the flow effect of the air.

Further, the air guiding plate 2022 has a first radian, which is smaller than 90 degrees, and the radian of the air guiding plate 2022 can be adaptively adjusted according to actual requirements.

In an embodiment not shown in the drawings, the air deflector 2022 is mounted on the inner surface of the inner casing body 201, one end of the air deflector 2022 abuts against the mounting panel 2021, the other end of the air deflector 2022 extends toward the air outlet 2011, and the surface of the air deflector 2022 away from the air inlet channel 203 abuts against the top surface of the inner casing body 201.

Specifically, the air deflector 2022 is arranged to enable the air entering the air passing channel to flow along the air deflector 2022, so that the phenomenon that the air collides with the top surface of the inner shell body 201 to obstruct the flow of the air is avoided, and the air deflector 2022 is arranged to enhance the flow effect of the air.

It should be noted that the two embodiments achieve the same effect, and both of them achieve the effect of enhancing the flow of wind.

As shown in fig. 3, the sealing structure includes a first gasket 300 and a first gasket 400, the first gasket 300 is disposed along the circumference of the mounting panel 2021 and is mounted between the mounting panel 2021 and the inner casing body 201 in an abutting manner, the inner casing body 201 is provided with a mounting portion at which the mounting panel 2021 is mounted, and the first gasket 400 is disposed between the mounting portion and the mounting panel 2021.

Specifically, the first sealing ring 300 is arranged between the mounting panel 2021 and the inner shell body 201 to isolate the first heat-sealing gap 900 from the ventilation cavity, so that the phenomenon that the outer shell 100 generates heat due to the fact that wind in the ventilation cavity enters the first heat-sealing gap 900 is avoided.

Further, the installation panel 2021 and the inner casing body 201 can be stably connected by padding the first gasket 400, and meanwhile, wind does not irregularly move between the inner casing body 201 and the flow guide frame, which is beneficial to optimizing noise.

In this embodiment, the first seal ring 300 and the first gasket 400 are both made of elastic rubber.

As shown in fig. 3 and 6, the thermal gaps include a first thermal gap 900 and a second thermal gap 600, the outer shell 100 includes an outer shell body 101, a front cover 102, a rear cover 104 and a mounting channel 103, the outer shell body 101 has an annular channel, the inner shell body 201 of the inner shell 200 is mounted inside the annular channel, and the outer shell body 101 and the inner shell body 201 are spaced to form the first thermal gap 900; the front cover 102 is connected with the outer shell body 101 and is sealed at an opening at one end of the annular channel, an air outlet 1021 communicated with an air outlet 2011 is formed in the front cover 102, and the front cover 102 is abutted against the end face, far away from the installation opening, of the inner shell body 201 of the inner shell 200; the rear cover 104 is connected with the outer shell body 101 and seals the opening at the other end of the annular channel, and the rear cover 104 and the mounting panel 2021 of the wind guide assembly 202 of the inner shell 200 are arranged at intervals to form a second heat-closing gap 600; the installation channel 103 is disposed on the outer casing body 101, and at least a portion of the air intake channel 203 of the inner casing 200 is accommodated inside the installation channel 103 and spaced apart from the installation channel 103.

Specifically, the inner casing body 201 and the outer casing body 101 are arranged at an interval to form a first heat-sealing gap 900, so as to prevent the outer casing body 101 from being scalded when hot wind flows inside the inner casing body 201, and similarly, a second heat-sealing gap 600 is formed between the rear cover 104 and the mounting panel 2021, and the second heat-sealing gap 600 is used for isolating the rear cover 104 and the mounting panel 2021.

Further, the first and second heat- closing gaps 900 and 600 are provided between the inner case 200 and the outer case 100 to have an effect of heat insulation. The front cover 102 abuts against an end face of the air outlet 2011 of the inner shell body 201, so that the air outlet 2011 is communicated with the air outlet 1021 and is aligned with the air outlet 1021.

As shown in fig. 3, the sealing structure includes a second sealing ring 500 and a third sealing ring, the second sealing ring 500 is disposed between the front cover 102 and the inner shell body 201 in an abutting manner, the second sealing ring 500 is matched with the front cover 102 and the inner shell body 201 to form an air outlet channel, and the air outlet channel is disposed in an isolated manner from the first heat-sealing gap 900 and the second heat-sealing gap 600; the third sealing ring is abutted between the air inlet channel 203 and the mounting channel 103, a mounting groove 2031 is arranged on the outer wall surface of the air inlet channel 203, the third sealing ring is accommodated in the mounting groove 2031, and the second sealing ring 500 and the third sealing ring are matched with the inner shell 200 and the outer shell 100 to form a first closed thermal gap 900 and a second closed thermal gap 600.

Specifically, the second sealing ring 500 is arranged to isolate the air outlet channel from the first heat-sealing gap 900 and the second heat-sealing gap 600, so that the phenomenon that the housing 100 is scalded due to the fact that the air outlet 2011 and the air outlet 1021 flow out to the inside where the air flows back into the first heat-sealing gap 900 and the second heat-sealing gap 600 is avoided.

Further, the third sealing ring is provided to seal the gap between the air intake channel 203 and the installation channel 103, so as to prevent air from entering the first thermal isolation gap 900 and the second thermal isolation gap 600 through the gap, and further to realize the sealing arrangement of the first thermal isolation gap 900 and the second thermal isolation gap 600, and of course, the first thermal isolation gap 900 and the second thermal isolation gap 600 are also communicated by detaching the sealing ring.

It should be noted that, not only the installation groove 2031 is provided on the outer wall surface of the inlet duct 203 to accommodate the third seal ring, but also the installation groove 2031 is provided on the inner wall surface of the installation duct 103 to accommodate the third seal ring, so that the gap between the inlet duct 203 and the installation duct 103 can be sealed by the third seal ring.

Example 2

The embodiment provides a blowing device. The blowing device comprises the blowing accessory, a handle component, a power part and a control system, the handle component is detachably connected with the blowing accessory and provided with an installation space, the power part is installed in the installation space and provided with an output port, the output port is communicated with an air inlet channel 203 of the blowing accessory and used for supplying air to the blowing accessory, the control system is installed in the installation space, and the control system is electrically connected with the power part.

Specifically, handle components and the accessory detachably of blowing are connected and are set up, can dismantle when the installation need not when needing and effectively improve blast apparatus's maneuverability, and accessible control system adjusts the power part simultaneously and adjusts wind speed and wind pressure etc. and convenient to use adjusts simply, has improved user experience and has felt.

Further, the power part can be a fan, and air is supplied to the air blowing accessory through the fan.

In this embodiment, the sealing structure further includes a fourth sealing ring, and the fourth sealing ring is disposed between the outlet and the air intake channel 203 in an abutting manner.

Specifically, the tightness between the output port and the air inlet channel 203 is enhanced by arranging the fourth sealing ring, and the air of the fan is ensured to completely enter the air inlet channel 203.

From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects:

1. the accessory of blowing is through setting up the structure of inner shell 200 and shell 100 in order to form double-deck casing to form between inner shell 200 and shell 100 and close the hot clearance, closed the effectual thermal transmission that has completely cut off in hot clearance, can lead to the problem that influences the use when having avoided the accessory of blowing to blow the hot-blast, improved the availability factor, increased user experience and felt.

2. The handle of the blowing device is detachably connected with the blowing accessory, so that the blowing accessory or the handle can be conveniently detached and replaced independently, and operability is improved.

It is to be understood that the above-described embodiments are only a few, but not all, embodiments of the present invention. Based on the embodiments of the present invention, those skilled in the art may make other variations or modifications without creative efforts, and shall fall within the protection scope of the present invention.

Claims (11)

1. A blowing accessory, comprising:

the air conditioner comprises an inner shell (200), wherein an air outlet (2011) is formed in the inner shell (200);

the air conditioner comprises an outer shell (100), wherein the inner shell (200) is installed inside the outer shell (100), an air outlet (1021) communicated with the air outlet (2011) is formed in the outer shell (100), and a closed thermal gap is formed between the inner shell (200) and the outer shell (100);

a sealing structure, at least a portion of which is disposed between the inner shell (200) and the outer shell (100), the sealing structure cooperating with the inner shell (200) and the outer shell (100) to enclose the enclosed heat-closing gap.

2. Blowing fitting according to claim 1, characterized in that the inner housing (200) comprises:

the air-passing device comprises an inner shell body (201), wherein the inner shell body (201) is provided with an air-passing channel, an opening at one end of the air-passing channel is the air outlet (2011), and an opening at the other end of the air-passing channel is an inner shell mounting opening;

the air guide assembly (202), an installation panel (2021) of the air guide assembly (202) is arranged at the installation opening of the inner shell, and the installation panel (2021) and the inner shell body (201) enclose a ventilation cavity;

air inlet channel (203), air inlet channel (203) with the bottom surface of inner shell body (201) is connected, air inlet channel (203) with the setting of ventilation chamber intercommunication.

3. The blowing fitting of claim 2, characterized in that the area of the air outlet opening (2011) is smaller than the area of the inner housing mounting opening.

4. A blow fitting according to claim 2, further comprising:

one end of the first air guide plate (700) is connected with the mounting panel (2021), the other end of the first air guide plate (700) extends towards the air outlet (2011), the first air guide plate (700) inclines towards one side surface of the inner shell body (201) to form a first air guide cavity (701), and the first air guide cavity (701) is communicated with the air inlet channel (203);

the one end of second induced air board (800) with installation panel (2021) is connected, the other end orientation of second induced air board (800) air outlet (2011) extends, and second induced air board (800) orientation another side slope of inner shell body (201) to form second induced air chamber (801), second induced air chamber (801) with inlet air passageway (203) intercommunication sets up.

5. The blowing accessory of claim 2, characterized in that the air deflection assembly (202) further comprises an arc-shaped air deflection plate (2022) mounted inside the air passage, the air deflection plate (2022) being disposed to bulge away from the center of the air passage,

one end of the air deflector (2022) is connected with the mounting panel (2021), the other end of the air deflector (2022) extends towards the air outlet (2011), and the surface of the air deflector (2022) far away from the air inlet channel (203) is abutted against the top surface of the inner shell body (201); and/or

The air deflector (2022) is mounted on the inner surface of the inner shell body (201), one end of the air deflector (2022) is abutted to the mounting panel (2021), the other end of the air deflector (2022) extends towards the air outlet (2011), and the surface of the air deflector (2022) far away from the air inlet channel (203) is abutted to the top surface of the inner shell body (201).

6. Blowing fitting according to claim 5, characterized in that the wind deflector (2022) has a first arc, which is smaller than 90 degrees.

7. A blow fitting according to claim 2, wherein the sealing structure comprises:

a first seal ring (300), wherein the first seal ring (300) is arranged along the circumferential direction of the mounting panel (2021) and is abutted and mounted between the mounting panel (2021) and the inner shell body (201);

the first gasket (400), be provided with the installation department on the inner shell body (201), installation panel (2021) is installed installation department, first gasket (400) set up the installation department with between installation panel (2021).

8. Blowing accessory according to any one of claims 1 to 7, characterized in that the closed thermal gap comprises a first closed thermal gap (900) and a second closed thermal gap (600), the housing (100) comprising:

the outer shell body (101), the outer shell body (101) is provided with an annular channel, the inner shell body (201) of the inner shell (200) is installed inside the annular channel, and the outer shell body (101) and the inner shell body (201) are arranged at intervals to form the first closed thermal gap (900);

the front cover (102) is connected with the outer shell body (101) and is sealed at an opening at one end of the annular channel, an air outlet (1021) communicated with the air outlet (2011) is formed in the front cover (102), and the front cover (102) is abutted to the end face, far away from the mounting opening, of the inner shell body (201) of the inner shell (200);

the rear cover (104) is connected with the outer shell body (101) and seals the opening at the other end of the annular channel, and the rear cover (104) and a mounting panel (2021) of the air guide assembly (202) of the inner shell (200) are arranged at intervals to form the second heat-closing gap (600);

the mounting channel (103) is arranged on the outer shell body (101), and at least one part of the air inlet channel (203) of the inner shell (200) is accommodated in the mounting channel (103) and is arranged at intervals with the mounting channel (103).

9. The blow fitting of claim 8, wherein the sealing structure comprises:

the second sealing ring (500) is abutted between the front cover (102) and the inner shell body (201), the second sealing ring (500) and the front cover (102) are matched with the inner shell body (201) to form an air outlet channel, and the air outlet channel is separated from the first heat-closing gap (900) and the second heat-closing gap (600);

the third sealing ring is abutted to and arranged between the air inlet channel (203) and the installation channel (103), an installation groove (2031) is formed in the outer wall surface of the air inlet channel (203) and/or the inner wall surface of the installation channel (103), the third sealing ring is accommodated in the installation groove (2031), and the second sealing ring (500) and the third sealing ring are matched with the inner shell (200) and the outer shell (100) to form a closed first heat closing gap (900) and a closed second heat closing gap (600).

10. A blowing device, comprising:

the blow fitting of any one of claims 1 to 9;

the handle assembly is detachably connected with the blowing accessory and is provided with an installation space;

the power piece is arranged in the installation space and is provided with an output port, the output port is communicated with an air inlet channel (203) of the blowing accessory, and the power piece is used for supplying air to the blowing accessory;

and the control system is arranged in the installation space and is electrically connected with the power part.

11. Blowing device according to claim 10, characterised in that the sealing arrangement of the blowing fitting further comprises a fourth sealing ring arranged in abutment between the outlet opening and the air inlet channel (203).

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