CN213587641U

CN213587641U - Hair-dryer convenient to installation is dismantled

Info

Publication number: CN213587641U
Application number: CN202021622240.2U
Authority: CN
Inventors: 祝永锋
Original assignee: Huanxing Technology Hangzhou Co ltd
Current assignee: Huanxing Technology Hangzhou Co ltd
Priority date: 2020-08-07
Filing date: 2020-08-07
Publication date: 2021-07-02
Anticipated expiration: 2030-08-07

Abstract

The utility model discloses a hair drier convenient for mounting and dismounting, which comprises a fan body, a tuyere and an outer shell with an outer cover outside the fan body, wherein one of the tuyere or the outer shell is provided with a mounting body, the other is provided with a mounting part, the mounting body and the mounting part can be detachably assembled, and the detachable mounting of the tuyere and the outer shell is realized; after the air nozzle and the outer shell are installed, the outer shell is partially arranged in the air nozzle, and the air nozzle also comprises a butting structure which is used for butting the outer shell and the air nozzle after assembly; the detachable installation mode is one of magnetic attraction connection or non-magnetic attraction connection. The utility model discloses in, through setting up installation department and installation body for tuyere demountable installation, and then can realize the intercommunication of tuyere and fan body, realized the reliable installation of tuyere and shell body. Compared with connection modes such as cementing and the like, great convenience is brought to users and maintainers.

Description

Hair-dryer convenient to installation is dismantled

Technical Field

The utility model belongs to the technical field of hair-dryer among the small household electrical appliances, concretely relates to hair-dryer convenient to installation is dismantled.

Background

The blower is composed of a group of electric heating wires and a small fan. When the fan is electrified, the heating wire can generate heat, and the air blown out by the fan passes through the heating wire and is changed into hot air. If only the small fan rotates and the heating wire is not hot, only wind but not heat is blown out. Hair dryers are mainly used for drying and shaping hair.

Present hair-dryer all is hand-held type, and this kind of hair-dryer is more convenient at the family, but in places such as some public bathrooms or gymnasiums, need weather after people have washed hair, but in public place for using hand-held hair-dryer, the number of people who use is more, and the damage can appear breaking in the difficult chance, need take apart the condition of carrying out inside maintenance.

In the prior art, the installation such as outside casing of hair-dryer and inside circuit board and tuyere is realized mostly through gluing technique such as gluing, especially the tuyere, and the tuyere can be dismantled or adjusted according to user's demand occasionally, and then the installation of tuyere and casing is especially important.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a simple structure, tuyere and shell body convenient to detach installation, and then be convenient for adjust mounted position, easy access's hair-dryer.

In order to realize the technical effect, the utility model discloses a following technical scheme realizes.

A hair drier convenient to mount and dismount comprises a fan body, a tuyere and an outer shell, wherein the outer shell is covered outside the fan body;

after the tuyere and the outer shell body are installed, the outer shell body is partially arranged in the tuyere and further comprises a butt structure, and the butt structure is used for contact butt of the outer shell body after being assembled with the tuyere.

Among this technical scheme, through setting up installation department and installation body for tuyere demountable installation, and then can realize the intercommunication of tuyere and fan body, realized the reliable installation of tuyere and shell body. Compare in connected mode such as mucilage binding, very big made things convenient for user and maintainer, especially partial hair-dryer, when the design, through increasing or not increasing the tuyere, realize different user experience and feel, and connected mode among this technical scheme for user experience feels can realize the variety.

Among this technical scheme, set up in the tuyere through making the shell body part, make during the air current that blows off from the fan body all enters into the tuyere, solved among the prior art inside wall cooperation of tuyere and shell body, the air current that blows off from the fan body can be followed and is leaked out in the assembly gap of tuyere and shell body, causes the problem of amount of wind, wind pressure loss. This technical scheme makes in the entering tuyere that the air current from in the fan body is concentrated more, and the cooperation gap of being connected of tuyere and shell body can not produce adverse effect to the air current.

In the technical scheme, the contact butt is added after assembly, and multiple modes such as face-to-face butt, edge-to-edge butt and the like can be adopted. After the outer shell and the air nozzle are connected, the air nozzle is abutted, so that the connection is firm, when a user moves or shakes the hair drier in use, the air nozzle and the outer shell are firmly connected, are not easy to loosen and are safer to use; and when the air flow enters the air nozzle from the fan body, the risk of air flow overflow or air flow suck-back caused by the assembly gap of the fan body and the air nozzle is reduced.

As a further improvement of the present invention, the abutting structure includes a first abutting portion located on the tuyere and a second abutting portion located on the outer shell, after the tuyere is installed on the outer shell, the first abutting portion and the second abutting portion have at least one abutting contact surface to realize the abutting between them.

When the hair dryer is used, shaking movement and the like are inevitable, and if the hair dryer is abutted edge to edge or abutted surface to edge, the abutting contact is too little, so that the abutting is not firm.

In this technical scheme, the installation back, face and face butt have equaled a heavy protection more for hair-dryer and tuyere can demountable installation, can pass through face butt again, use in the hair-dryer and shake, and closely firm being connected between tuyere and the hair-dryer body can not appear rocking the phenomenon such as.

As a further improvement of the utility model, the installation department is locking portion, the installation body is the portion of inserting, locking portion is equipped with the installation cavity that matches with the portion of inserting.

In the technical scheme, the buckle structure of the automobile safety belt can be used, the card insertion part is inserted into the installation cavity and locked through the spring and other structures in the installation cavity, and the release in the installation cavity can be realized by pressing the button, so that the insertion part is pulled out.

As a further improvement of the present invention, the mounting body is a first magnetic body, the mounting portion is a second magnetic body magnetically attracted by the first magnetic body.

Among this technical scheme, the setting all possesses the magnetism body of inhaling of magnetism, and then when being close to, under the effect of magnetic attraction, reliably installs shell body and tuyere. Specifically, the magnetic substance can adopt the strong neodymium iron boron material of magnetism, buckle structure when being different from the plastics fuselage, and the mode of magnetism is inhaled can make the tuyere firmly adsorb on the main part fuselage, replaces the buckle form convenient and reliable more.

As a further improvement of the utility model, the first magnetic attraction body or the second magnetic attraction body is embedded on the inner wall of the outer shell.

Among this technical scheme, to the magnetism suction body on the shell body, adopt the mounting means of inlaying, the installation is firm, and to the tuyere, also can adopt the mode of inlaying or pre-buried to install, and it is preferred pre-buried, with its pre-buried to the tuyere in, avoid the influence to the smoothness degree etc. of tuyere shell. Certainly, if the magnetism body setting at this moment when the outer wall of tuyere, then more need be pre-buried, avoid because inlay for tuyere and shell body clearance are too big, influence the compactness.

As a further improvement, the inner wall of the outer shell is provided with a volume larger than the chamber for accommodating the volume of the first magnetic attraction body or the volume of the second magnetic attraction body, the first magnetic attraction body or the second magnetic attraction body is fixed in the chamber for accommodating the inner chamber.

Among this technical scheme, in order to further ensure the use, fixed or the activity setting of the body of inhaling is holding the intracavity, if hold the chamber and be equipped with the lid outward, then the body of inhaling can the activity put and hold the intracavity, but if not then can adopt modes such as welding, fix in the shell.

As a further improvement of the present invention, the outer casing includes a first casing and a second casing connected to the first casing, at least a part of the first casing extends into the tuyere, a step surface is formed on the outer surface of the first casing and the outer surface of the second casing, the tuyere is connected to the first casing, and the outer surface of the tuyere is flush with the outer surface of the second casing.

According to the technical scheme, after the air nozzle is assembled on the fan body, a smooth outer surface can be obtained, and the outer surface is smooth in transition and connection; for the fan body, the outer shell of the fan body is designed into a first shell and a second shell which are staggered in height, when an airflow passes through the junction of the second shell and the first shell, due to the difference of the sizes of the first shell and the second shell, the wind pressure can be changed, and therefore the desired wind pressure can be obtained from the fan body; and a step surface is formed by the outer surface of the first shell and the outer surface of the second shell to limit the connection between the air nozzle and the outer shell. Comprehensively, through this technical scheme, both can change the wind pressure, can promote the connection effect of tuyere and fan body again.

As a further improvement of the present invention, the abutting structure includes a portion of the outer surface of the first housing and a portion of the outer surface of the second housing forming a step surface, and the tuyere has an abutting portion to the step surface.

Among this technical scheme, form to be connected of tuyere and shell body spacing through the step face, make the connection and the dismantlement of tuyere and shell body more reliable, avoid tuyere and shell body coupling back, the axial direction of tuyere along the shell body when the tuyere atress effect is to the back (the one end relative with tuyere and fan body link on the fan body) removal, lead to the condition that the tuyere card is difficult to take off on the shell body to take place. Preferably the end of the second housing is brought into contact abutment with the end of the tuyere,

as a further improvement of the utility model, the tuyere surface sets up the spacing portion of step form, the spacing portion of step form with the cooperation of step face is spacing in order to realize the tuyere in the second casing.

Among this technical scheme, make being connected and dismantling of tuyere and shell body more reliable, avoid tuyere and shell body coupling back, when tuyere atress effect was used, the tuyere moved backward (on the fan body, with the relative one end of tuyere and fan body link) along the axis direction of shell body, and the condition that leads to the tuyere card to be difficult to take off takes place on the shell body. And, spacing portion and the cooperation of step face can realize the crisscross setting in gap when tuyere and shell body are connected, avoid fan body combustion air to spill over from joint gap between them to lead to the loss of amount of wind and wind pressure.

As a further improvement of the present invention, an assembly chamber is formed between the first casing and the second casing, and a part of the step-like stopper is inserted into the assembly chamber.

Among this technical scheme, the ingenious space problem that utilizes, through inserting cooperation structure and butt cooperation structure, make tuyere and shell body coupling back connection gap diminish, can realize the compact overall arrangement of structure, and make the cooperation of tuyere and shell body more reliable, stable.

Drawings

Fig. 1 is an assembly view of a hair dryer of the present invention, which is easy to assemble and disassemble;

fig. 2 is a schematic structural view of a blower which is convenient to mount and dismount in a buckling manner;

fig. 3 is a partial enlarged view of a in fig. 2 according to the present invention;

fig. 4 is a schematic structural view of a hair dryer convenient to mount and dismount in a magnetic attraction manner;

fig. 5 is a partial enlarged view of B in fig. 4 according to the present invention;

fig. 6 is a schematic structural view of a blower convenient to mount and dismount according to the present invention;

fig. 7 is a schematic structural view of a stepped limiting portion on a tuyere according to the present invention;

fig. 8 is a schematic structural view of an assembly cavity provided on the blower body according to the present invention;

in the figure:

1. a fan body; 2. a tuyere; 21. a tuyere body; 24. an insertion portion; 3. a second housing; 31. a front housing; 32. a rear housing; 33. a mounting cavity; 34. an accommodating chamber; 4. a first abutting portion; 5. a second abutting portion; 6. an air outlet net; 7. a first housing; 8. an assembly chamber; 9. a step-shaped limiting part; 10. a step surface;

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.

Example 1

In this embodiment, the core components of the blower to be mounted and dismounted will be mainly described.

The blower comprises a blower body, a tuyere and an outer shell, wherein the outer shell is covered outside the blower body;

In this embodiment, through setting up installation department and installation body for tuyere demountable installation, and then can realize the intercommunication of tuyere and fan body, realized the reliable installation of tuyere and shell body. Compare in connected mode such as mucilage binding, very big made things convenient for user and maintainer, especially partial hair-dryer, when the design, through increasing or not increasing the tuyere, realize different user experience and feel, and the connected mode in this embodiment for user experience feels can realize the variety.

In the present embodiment, the contact abutment is added after the assembly, and various modes such as surface-to-surface abutment, edge-to-edge abutment, and the like are possible. After the outer shell and the air nozzle are connected, the air nozzle is abutted, so that the connection is firm, when a user moves or shakes the hair drier in use, the air nozzle and the outer shell are firmly connected, are not easy to loosen and are safer to use; and when the air flow enters the air nozzle from the fan body, the risk of air flow overflow or air flow suck-back caused by the assembly gap of the fan body and the air nozzle is reduced.

Example 2

The present embodiment will be described mainly in terms of contact.

Referring to the attached drawing 1, the hair dryer convenient to mount and dismount comprises a fan body 1, a tuyere 2 and an outer shell covered outside the fan body 1, wherein one of the tuyere or the outer shell is provided with a mounting body, the other one of the tuyere or the outer shell is provided with a mounting part, and the mounting body and the mounting part are detachably assembled to realize the detachable mounting of the tuyere and the outer shell;

after the air nozzle 2 and the outer shell are installed, the outer shell is partially arranged in the air nozzle 2, and the air nozzle further comprises a butting structure, wherein the butting structure is used for butting the outer shell and the air nozzle after assembly;

the detachable installation mode is one of magnetic attraction connection or non-magnetic attraction connection.

Specifically, the abutting structure comprises a first abutting portion 4 located on the tuyere 2 and a second abutting portion 5 located on the outer shell, and after the tuyere 2 and the outer shell are installed, at least one abutting contact surface is arranged between the first abutting portion 4 and the second abutting portion 5, so that the first abutting portion and the second abutting portion are abutted.

Among this technical scheme, through buckle and magnetism 2 kinds of modes of inhaling, consume power in the buckle installation some, and magnetism is inhaled then in the installation, and the power of consuming is little, and magnetism inhales the effect better than the buckle, and it can utilize magnetism to inhale power, convenient and reliable more.

In this technical scheme, butt portion can be located optional positions such as outer wall, middle part, the border of tuyere 2, also can be located optional positions such as inner wall, both ends, the edge of shell body, and the purpose is so that shell body and tuyere after the assembly, has had more a connecting portion that realizes reconnection through offsetting.

And be equipped with tuyere body 21 on the tuyere 2, still include air-out net 6 and first casing 7, air-out net 6 is fixed in on the second casing 3 through first casing 7. The air outlet net 6 and the first shell 7 can be arranged integrally or separately.

The second housing 3 is mainly composed of a front housing 31 and a rear housing 32, which are connected by a snap fit.

As shown in fig. 2 or 4, the lengths of the two abutments may be arranged differently, for example, the length of the first abutment 4 is greater or less than the length of the second abutment 5.

The hair-dryer in use, must have and rock the removal etc. if the butt position is too near, consume the shell body etc. easily, especially the plastics material, the butt is too tight, extrudes brokenly easily, and one is long one short, then has certain activity interval, and is specific, and length differs about 1mm, and then during the use, the shell body and the tuyere of hair-dryer have certain activity region, but have firm connection, the result of use is better.

In this embodiment, inhale 2 kinds of modes through buckle and magnetism, consume strength in the buckle installation some, and inhale then the installation, consume the power little, and the effect is better than the buckle to magnetism, and it can utilize magnetism to inhale power, convenient and reliable more.

Example 3

This embodiment mainly introduces the buckle structure.

Referring to fig. 2-3, at this time, the non-magnetic connection is a snap connection, the mounting portion is a locking portion, the mounting body is an insertion portion, and the locking portion is provided with a mounting cavity matched with the insertion portion.

Referring to fig. 2-3, in this embodiment, the insertion portion 24 of the tuyere is inserted into the mounting cavity 33 of the outer housing, and when the insertion portion 24 is pressed, the insertion portion 24 is released and moved away from the outer housing.

In this embodiment, the buckle structure of the automobile safety belt can be used, the card insertion portion is inserted into the installation cavity and is locked by a spring and other structures in the installation cavity, and the button is pressed, so that the installation cavity can be loosened, and the insertion portion is pulled out.

Preferably, the outer housing is a molded plastic part.

In this embodiment, adopt shaping plastic part, its production is convenient, can set up insert part or locking portion according to the model in shaping plastic part, and then one shot forming, be convenient for batch production and using widely.

It can be understood that the connection of the tuyere and the outer shell can also be realized by a rotary buckle.

Example 4

In this embodiment, a magnetic attraction structure is mainly described.

Referring to fig. 4-5, in the magnetic connection, the mounting portion is a first magnetic member, and the mounting portion is a second magnetic member magnetically attracted to the first magnetic member.

In this embodiment, the setting all possesses the magnetic suction body of magnetism, and then when being close to, under the effect of magnetic suction, reliably installs shell body and tuyere. Specifically, the magnetic substance can adopt the strong neodymium iron boron material of magnetism, is different from the plastics fuselage, and the tuyere can firmly adsorb on the main part fuselage, replaces the buckle form convenient and reliable more.

Specifically, the first magnetic attraction body or the second magnetic attraction body is embedded on the inner wall of the outer shell.

In this embodiment, to the magnetism suction body on the shell body, adopt inlayed mounting means, the installation is firm, and to the tuyere, also can adopt to inlay or pre-buried mode to install, and it is preferred pre-buried, with its pre-buried to the tuyere in, avoid the influence to the smoothness degree etc. of tuyere shell. Certainly, if the magnetism body setting at this moment when the outer wall of tuyere, then more need be pre-buried, avoid because inlay for tuyere and shell body clearance are too big, influence the compactness.

In this embodiment, the magnetic body arranged on the tuyere 2 is pre-buried, so it is difficult to see, certainly, the partial structure of the tuyere 2 can be replaced by the magnetic body, so that the main body is the magnetic body, and the magnetic connection with the magnetic body in the outer shell is realized.

Referring to fig. 5, the inner wall of the outer shell is provided with a containing cavity 34 with a volume larger than the volume of the first magnetic attraction body or the volume of the second magnetic attraction body, and the first magnetic attraction body or the second magnetic attraction body is fixed in the containing cavity 34.

In this embodiment, in order to further ensure the use, fixed or the activity setting of magnetism body is in holding the intracavity, if hold the chamber and be equipped with the lid outward, then magnetism body can the activity put and hold the intracavity, but if do not then can adopt modes such as welding, fix in the shell.

The utility model discloses in, shell body and tuyere adopt the poor design of section, specifically, indicate when the mould design, do the difference in the draft. Specifically, except that the inclined plane is arranged at the connecting and installing position, different inclined planes can be arranged on the inner wall of the outer shell and the outer wall of the air nozzle, and then the two inclined planes have certain difference values, so that the design quality of the die can be facilitated, and the matching and the installation can be realized.

In this embodiment, the inside structure that pushes down that is equipped with suddenly of tuyere, its precompression that has realized wind pressure in the tuyere has improved the efficiency of blowing of hair-dryer, and it can set up in being close to the air outlet position. Simultaneously, make the structure in the tuyere greatly promote.

Example 5

In this embodiment, description is also made around other structures.

Referring to fig. 1, 6 to 8, the outer casing includes a first casing 7 and a second casing connected to the

first casing

7, 3 the first casing 7 at least partially extends into the tuyere 2, a step surface 10 is formed on an outer surface of the first casing 7 and an outer surface of the second casing 3, and after the tuyere 2 is connected to the first casing 7, the outer surface of the tuyere 2 is flush with the outer surface of the second casing 3.

Firstly, after the air nozzle 2 is assembled on the fan body 1, a smooth outer surface can be obtained, and the transition and connection of the outer surface are smooth; for the fan body 1, by designing the first housing 7 and the second housing 3 with staggered heights, when the airflow passes through the boundary between the second housing 3 and the first housing 7, the wind pressure can be changed due to the difference of the sizes of the two housings, so that the desired wind pressure can be obtained from the fan body 1; and the connection between the air nozzle 2 and the outer shell is limited by the step surface formed by the outer surface of the first shell 7 and the outer surface of the second shell 3. Comprehensively, through this technical scheme, both can change the wind pressure, can promote the connection effect of tuyere 2 and fan body 1 again.

In this example, the end surface of the tuyere 2 abuts against the end of the second housing 3. The first housing 7 and the second housing 3 may be provided integrally or separately.

As a further improvement of the present invention, the abutting structure includes at least a part of the stepped surface 10 formed by the outer surface of the first casing 7 and the outer surface of the second casing 7, and the tuyere 2 abuts against at least a part of the stepped surface 10. Form to be connected of tuyere 2 and shell body spacing through step face 10, make the connection and the dismantlement of tuyere 2 and shell body more reliable, avoid tuyere 2 and shell body coupling back, the axial direction backward (the one end relative with tuyere 2 and fan body 1 link on the fan body 1) of tuyere along the shell body when tuyere 2 atress effect removes, leads to the condition that tuyere 2 card is difficult to take off on the shell body to take place. The step surface 10 includes an end surface of the second housing 3.

As a further improvement of the utility model, the outer surface of tuyere 2 sets up the spacing portion 9 of step form, the spacing portion 9 of step form with step face 10 cooperates in order to realize the spacing of tuyere 2 in second casing 7. The step-like stopper portion 9 includes an end surface that engages with the end surface of the second housing 3.

Make being connected and dismantling of tuyere 2 and shell body more reliable, avoid tuyere and shell body coupling back, tuyere moves along the axis direction of shell body backward (the one end relative with tuyere and fan body link on the fan body) when tuyere atress effect, leads to the condition emergence that the tuyere card is difficult to take off on the shell body. And, spacing portion and the cooperation of step face can realize the crisscross setting in gap when tuyere and shell body are connected, avoid fan body combustion air to spill over from joint gap between them to lead to the loss of amount of wind and wind pressure.

An assembly cavity is formed between the first shell 7 and the second shell 3, and a part of the step-shaped limiting part 9 is inserted into the assembly cavity 8. The ingenious space problem that utilizes, through inserting cooperation structure and butt cooperation structure, make tuyere and shell body coupling back connection gap diminish, can realize the compact overall arrangement of structure, and make the cooperation of tuyere and shell body more reliable, stable. The step-like stopper is located at the end of the tuyere body 21. The step-shaped limiting portion comprises a first end portion and a second portion, the first end portion extends inwards in the radial direction of the air nozzle body, the second portion extends from the first end portion in the axial direction of the air nozzle body, and the second portion is inserted into the assembling cavity. When the air nozzle and the outer shell are in a buckle connection mode, the side walls of the second part and the assembly cavity are provided with buckle matching structures. When the tuyere and the outer shell body adopt a magnetic attraction connection mode, the first end part and the end part of the first shell body 7 are provided with a magnetic attraction matching structure.

In this embodiment, the assembly of the tuyere 2 and the outer housing may be a magnetic structure or a non-magnetic structure. When adopting magnetism to inhale connection structure, be equipped with magnet on tuyere 2 and the shell body one, be equipped with on the other with magnet complex magnetic material, perhaps all set up magnet on tuyere 2 and the shell body. The magnet or magnetic material may be provided on the second housing 3 or on the first housing 7, preferably on the second housing 3.

When the non-magnetic attraction structure is adopted, a snap fit structure is generally adopted. And the buckle structure arranged on the outer shell is hidden in the assembly cavity for the sake of attractive appearance.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A hair drier convenient to mount and dismount is characterized by comprising a fan body, a tuyere and an outer shell, wherein the outer shell is covered outside the fan body;

2. The blower of claim 1, wherein the abutting structure comprises a first abutting portion located on the nozzle and a second abutting portion located on the outer casing, and after the nozzle is mounted on the outer casing, at least one abutting contact surface of the first abutting portion and the second abutting portion is provided for abutting.

3. The blower of claim 1, wherein the mounting portion is a locking portion, the mounting body is an insertion portion, and the locking portion has a mounting cavity matching the insertion portion.

4. The hair dryer of claim 1, wherein said mounting body is a first magnetic body, and said mounting portion is a second magnetic body magnetically attracted to said first magnetic body.

5. The blower of claim 4, wherein the first magnetic attraction body or the second magnetic attraction body is embedded on the inner wall of the outer casing.

6. The hair drier convenient to assemble and disassemble as claimed in claim 5, wherein the inner wall of the outer shell is provided with a containing cavity with a volume larger than the volume of the first magnetic attraction body or the volume of the second magnetic attraction body, and the first magnetic attraction body or the second magnetic attraction body is fixed in the containing cavity.

7. An easy-to-mount-and-dismount hair dryer according to any of claims 1-6, wherein said outer housing comprises a first housing and a second housing connected to said first housing, said first housing at least partially extending into said nozzle, an outer surface of said first housing and an outer surface of said second housing forming a step surface, and an outer surface of said nozzle is flush with an outer surface of said second housing after said nozzle is connected to said first housing.

8. The blower of claim 7, wherein said abutment structure includes at least a portion of a stepped surface formed by an outer surface of said first housing and an outer surface of said second housing, said nozzle abutting at least a portion of said stepped surface.

9. The blower of claim 8, wherein the outer surface of the nozzle is provided with a stepped limiting portion, and the stepped limiting portion cooperates with the stepped surface to limit the nozzle in the second housing.

10. The blower of claim 9, wherein a fitting cavity is formed between the first housing and the second housing, and a part of the step-like stopper is inserted into the fitting cavity.