CN210769521U

CN210769521U - Fan head and fan

Info

Publication number: CN210769521U
Application number: CN201920795941.7U
Authority: CN
Inventors: 夏康生; 陈建滨
Original assignee: Xiamen Vitami Household Products Co ltd
Current assignee: QUANZHOU XINGQUANLONG ELECTRONIC TECHNOLOGY Co.,Ltd.
Priority date: 2019-05-29
Filing date: 2019-05-29
Publication date: 2020-06-16
Anticipated expiration: 2029-05-29
Also published as: JP3227395U; KR20200002680U; KR200495523Y1

Abstract

The utility model provides a fan head, including fixing base and two at least flabellums, be provided with the pin joint axle on one of fixing base or flabellum, be provided with the shaft hole on the other, the fixing base with pass through between the flabellum the pin joint axle with the shaft hole rotates to be connected, and when the motor operation, it is rotatory that the motor drives the flabellum, the flabellum is rotatory and open under the effect of centrifugal force, works as when the motor stall, the orientation of flabellum with the plane at fixing base place is the contained angle. The utility model also provides a fan, including foretell fan head. The utility model discloses a fan head and fan just with accomodate and do not influence the advantage of use after accomodating.

Description

Fan head and fan

[ technical field ] A method for producing a semiconductor device

The utility model relates to a fan technical field, in particular to fan head and fan.

[ background of the invention ]

Small fans are popular with people for their convenience of carrying.

Most of the flabellum of little fan on the market is made by soft material mostly, and the purpose is in order to prevent that the flabellum from scratching people or leading to the flabellum to damage because of contacting with the foreign object when rotating, but the flabellum of soft material can become to curl after accomodating and need long-time just can expand completely because of contacting with the foreign object, causes the user to be difficult to use little fan when needs are bloied, has reduced user's experience.

Therefore, how to solve the problem that the small fan is inconvenient to store and influences use becomes the key point of the solution.

[ Utility model ] content

In order to overcome the technical problem, the utility model provides a fan head and fan.

The utility model provides a technical problem's scheme provides a fan, it includes fixing base and two at least flabellums, be provided with the pin joint axle on one of fixing base or flabellum, be provided with the shaft hole on the other, the fixing base with pass through between the flabellum the pin joint axle with the shaft hole rotates the connection, and when the motor operation, the motor drives the flabellum rotatory, the flabellum is rotatory and open under the effect of centrifugal force, works as when the motor stall, the orientation of flabellum with the plane at fixing base place is the contained angle.

Preferably, the fixing seat comprises an upper cover and a lower cover which are detachably connected, the upper cover is provided with a first shaft hole structure, the first shaft hole structure is formed by two separated convex plates which are formed by protruding one side of the upper cover opposite to the lower cover, the end surface of the lower cover is provided with a second shaft hole structure, and a clamping groove is formed in the second shaft hole structure; when the upper cover is buckled with the lower cover, the first shaft hole structure and the second shaft hole structure form the shaft hole, and the convex plate close to the center of the upper cover is clamped in the clamping groove.

Preferably, the fan blade includes a fan blade portion and a pivot portion, the pivot shaft is disposed on the pivot portion, the pivot portion further includes a pivot hole disposed between the fan blade portion and the pivot shaft, and when the fan blade is rotatably connected in the shaft hole, the first shaft hole structure and the second shaft hole structure partially penetrate through the pivot hole.

Preferably, the pivot shaft is arranged on the fan blade, the fixed seat is provided with a shaft hole, the shaft hole is provided with a notch, and the pivot shaft is clamped into the shaft hole through the notch and can rotate relative to the shaft hole so as to enable the fixed seat to be pivoted with the fan blade; or

The pivot shaft is arranged on the fixing base, a shaft hole is formed in the fan blade, a notch is formed in the shaft hole, the size of the notch is smaller than that of the pivot shaft, and the pivot shaft is clamped into the shaft hole through the notch and can rotate relative to the shaft hole to enable the fixing base to be pivoted with the fan blade.

Preferably, the number of the fan blades is 2-7, and the included angle between the orientation of the fan blades and the plane of the fixed seat is 30-90 degrees.

The utility model also provides a fan, comprising a main body, the main part includes main part and air-out portion, the main part is connected with air-out portion, the main part is used for the air-out speed of relatively fixed air-out portion and control air-out portion, air-out portion includes motor and foretell fan head, the motor includes the output, the motor passes through output and fan head fixed connection, the motor drives the fan head rotation when the operation in order to produce wind.

Preferably, the fan still includes the lid, the lid is connected with the one end of main part is detachable, the main part still includes resilience portion, the main part passes through resilience portion and is connected with air-out portion, when the lid is connected with the main part, air-out portion is located the lid and resilience portion is compressed, when lid and main part separation, the compression resilience portion's power disappears and resilience portion can the reconversion rebound and drive air-out portion rotatory extremely with the main part is certain angle.

Preferably, the main body part includes a housing, a power supply assembly and an adjusting switch, the power supply assembly is electrically connected to the air outlet part and the adjusting switch, the power supply assembly is fixedly disposed in the housing, the adjusting switch is exposed from the housing and slides relative to the housing, and the adjusting switch is used for adjusting the power of the power supply assembly for providing the electric energy to the air outlet part.

Preferably, the power supply module further includes a circuit board, an electrical core, an input port and an output port, the circuit board is electrically connected to the regulating switch, the electrical core, the input port, the output port and the air outlet portion, the electrical core is used for providing a power supply, the input port is partially exposed on the surface of the housing, the input port is used for being connected to an external power supply to charge the electrical core, the output port is partially exposed on the surface of the housing, and the output port is used for being connected to an external electronic product to charge the external electronic product.

Preferably, the power supply module further comprises an indicator light, the indicator light is fixedly arranged in the shell and exposed on the surface of the shell, the indicator light is electrically connected with the circuit board, the indicator light is used for indicating the charging and discharging state of the power supply module, the other end of the main body is provided with an insertion groove, and the cover is inserted into the insertion groove to be in insertion connection with the insertion groove so as to increase the size of the main body.

Compared with the prior art, the utility model discloses a fan head has following advantage:

1. the fixing base is pivoted with the fan blade through the pivoting shaft, and the friction force of the pivoting between the fixing base and the fan blade is larger than or equal to the gravity of the fan blade, so that the fan blade cannot be randomly unfolded under the action of self gravity when being folded and stored along the pivoting shaft, and the fan blade can be unfolded to generate wind by the centrifugal force generated by the rotation of the fan blade driven by the motor when being used, so that the fan head can be stored well and the air outlet effect of the stored fan is not influenced.

2. The shaft hole is formed by connecting the upper cover and the lower cover, so that the assembly and disassembly of the pin joint shaft are facilitated.

3. The pin joint axle sets up on upper cover or lower cover, and the shaft hole sets up on the flabellum, and the pin joint axle card is gone into in the shaft hole, and the size of breach is less than the size of pin joint axle for the pin joint axle can not deviate from easily after the breach card is gone into in the shaft hole, has promoted the firm degree that flabellum and fixing base are connected.

4. One of the fixing base and the fan blade is provided with a pivot shaft, the other one of the fixing base and the fan blade is provided with a shaft hole, a notch is formed in the shaft hole, the pivot shaft is clamped into the shaft hole through the notch, and the size of the notch is smaller than that of the pivot shaft, so that the pivot shaft cannot be easily separated after being clamped into the shaft hole through the notch, and the stability of connection between the fan blade and the fixing base is improved.

5. The fan head comprises two to seven fan blades, so that the experience of users is not reduced due to the fact that the air outlet speed is reduced because the number of the fan blades is small, compared with the condition of the same air quantity, the air at the fan head with the large number of the fan blades is soft, and the air outlet noise of the fan head is small; compare the condition of equal air-out noise, the air output through the fan head that sets up more fan blade number is more.

6. The setting of resilience portion is favorable to being certain angle with the main part at the lid back rotation that drives out of automation after taking off, so sets up, and its wrist need not to twist reverse great angle and can realize out the air-out portion and face to blowing after holding the main part by the user, and experience nature is better.

7. The power supply assembly further comprises an output port, the fan can charge the portable power source through the output port when the user does not have a household power source and the portable power source, and the technical problem that the electronic product of the user needs to be charged urgently is solved.

8. The setting of the indicator light may explicitly prompt the user of the operating state of the power supply assembly.

9. Due to the arrangement of the insertion groove, the size of the shell is increased, and when the original size of the shell is smaller and is not suitable for being held by a user, the increased size can meet the size held by the user; and the probability that the cover is forgotten to be lost can be reduced by inserting the plug-in slot after the cover is taken down.

[ description of the drawings ]

Fig. 1A is a schematic perspective view of the fan of the present invention.

FIG. 1B is an exploded view of the fan shown in FIG. 1A.

Fig. 1C is a schematic perspective view of the fan body according to the present invention.

Fig. 1D is a schematic partial sectional view of the fan body according to the present invention.

Fig. 2A is a schematic view of an explosion structure of the air outlet portion of the fan of the present invention.

Fig. 2B is a schematic perspective view of a fan head of the fan of the present invention.

Fig. 2C is an exploded view of the fan head of the fan of the present invention.

Fig. 2D is an exploded view of a first modified embodiment of the fan head of the fan according to the present invention.

Fig. 2E is an exploded view of a second variant of the fan head of the fan according to the present invention.

Fig. 3 is an exploded view of the main body of the fan of the present invention.

Fig. 4A is an exploded view of the air outlet portion, the resilient portion and the cover of the fan of the present invention.

Fig. 4B is a schematic view of another perspective of fig. 4A.

Fig. 4C is another schematic sectional view of the fan body according to the present invention.

Fig. 5A is a schematic perspective view of the cover and the adjusting switch of the fan of the present invention.

Fig. 5B is a schematic view of a partial cross-sectional structure of the fan of the present invention.

Description of reference numerals:

10. a fan; 11. a main body; 12. a cover; 111. a main body portion; 112. an air outlet part; 113. a spring back portion; 1121. a motor; 1122. a housing; 1123. a fan head; 1124. an output end; 1125. a fixed seat; 1126. a fan blade; 1111. a housing; 1112. a power supply component; 1113. a cover body; 1114. a barrel; 1115. an adjustment switch; 1116. a circuit board; 1117. an electric core; 1118. an input port; 1119. an output port; 1120. an indicator light; 11141. inserting grooves; 1127. a first accommodating groove; 11131. a second accommodating groove; 1128. a first limiting part; 11132 and a second limiting part; 11151. a boss portion; 11133. a notch; 11134. a blocking portion; 11142. an opening; 11251. an upper cover; 11252. a lower cover; 11261. a pivot shaft; 11254. a shaft hole structure; 11255. a first half axle hole structure; 11256. a second half-shaft bore configuration; 11257. a clamping groove; 2123. a fan head; 2125. A fixed seat; 2126. a fan blade; 21251. an upper cover; 21252. a lower cover; 21261, a pivot shaft; 21253. a shaft hole; 21257. a notch; 3123. a fan head; 3125. a fixed seat; 3126. a fan blade; 31261. a pivot shaft; 31253. a shaft hole; 31257. and (4) a notch.

[ detailed description ] embodiments

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1A and 1B, a first embodiment of the present invention provides a fan 10, which includes a main body 11 and a cover 12, wherein an end of the main body 11 is detachably connected to the cover 12, and after the cover 12 is separated from the main body 11, the main body 11 can generate air to provide cool for a user.

Referring to fig. 1C and fig. 1D, the main body 11 includes a main body 111 and an air outlet portion 112, the main body 111 is connected to the air outlet portion 112, the main body 111 is used for relatively fixing the air outlet portion 112 and controlling an air outlet speed of the air outlet portion 112, the air outlet portion 112 can generate air for a user to enjoy the cool, and the main body 111 is detachably connected to the cover 12.

The utility model discloses in, main part 11 still includes resilience portion 113, and main part 111 is connected with air-out portion 112 through resilience portion 113. When the cover 12 is closed on the main body 11, the air outlet portion 112 is located in the cover 12, and the resilient portion 113 is compressed due to the constraint of the main body 111 and the cover 12, when the cover 12 is separated from the main body 111, the resilient portion 113 can rebound due to the recovery, and the resilient portion 113 drives the air outlet portion 112 to automatically tilt and rotate to a certain angle. At this time, the air outlet portion 112 and the main body portion 111 form a certain angle, so that the user can blow air from the air outlet portion 112 to the air outlet portion without twisting the wrist when holding the main body portion 111. Optionally, the resilient portion 113 is a torsion spring, one end of the torsion spring abuts against the main body 111, and the other end abuts against the air outlet portion 112.

In some other embodiments of the present invention, the main body 111 is fixedly connected to the air outlet 112, and when the user separates the cover 12 from the main body 111, the user can grip the main body 111.

Referring to fig. 1D, a stopper 11134 is disposed on the main body 111, and the stopper 11134 is disposed on a rebound path of the rebound portion 113 and can abut against the air outlet portion 112 when the rebound portion 113 drives the air outlet portion 112 to rotate by a certain angle, so as to prevent the rebound portion 113 from tilting excessively and prevent the rebound portion 113 from being damaged and losing a rebound function due to the pressure of the air outlet portion 112. The height of the specific stopper 11134 may be set according to the actual required rebound angle. Optionally, the one end that air-out portion 112 is close to main part 111 is the radian setting, is favorable to air-out portion 112 can not take place the scratch with main part 111 when being driven to rotate by rebound portion 113 so that hinder the normal rotation of air-out portion 112.

It can be understood that the angle of the rotation of the air outlet portion 112 driven by the resilient portion 113 is limited by the resilient amplitude of the resilient portion 113 and the stopper 11134. Optionally, after the rotation angle of the air outlet portion 112 driven by the springback portion 113 is a, the air outlet portion 112 is pressed against by the blocking portion 11134, where a is 30 ° to 90 °, and a may be 30 °, 45 °, 60 °, or 90 °.

Referring to fig. 2A, the air outlet portion 112 includes a motor 1121, a housing 1122 and a fan head 1123, the motor 1121 is disposed in the housing 1122, the motor 1121 includes an output end 1124, the output end 1124 extends from the housing 1122 and is fixedly connected to the fan head 1123, and the motor 1121 drives the fan head 1123 to rotate through the output end 1124 when the motor is in operation.

Referring to fig. 2A, the fan head 1123 further includes a fixing base 1125 and at least two blades 1126, the fixing base 1125 is pivotally connected to the blades 1126, and the fixing base 1125 is fixedly connected to the output end 1124. When the motor 1121 is not operated, the fan blade 1126 naturally droops, when the motor 1121 is operated, the output end 1124 drives the fan blade 1126 to rotate, and the fan blade 1126 rotates and opens under the action of centrifugal force until the projection area of the fan blade 1126 on the rotation plane is maximum. Optionally, each fan head 1123 comprises two to seven fan blades 1126, the fan heads 1123 of the two to three fan blades 1126 do not slow down the experience of the user due to the small number of the fan blades 1126, and compared with the case of the same air output amount, the air of the fan heads 1123 with the large number of the fan blades 1126 is softer, and the air output noise of the fan heads 1123 is smaller; compared with the case of the same air outlet noise, the air outlet quantity of the fan head 1123 is larger by arranging more fan blades 1126.

It is understood that the air outlet portion 112 may also include a bladeless fan (not shown) (a bladeless fan, also called an air doubling machine, which can generate a natural and continuous cool air without using blades, wherein the bladeless fan is based on the principle that a 40 watt electric motor is provided in a bladeless fan base to suck 33 liters of air into the fan base per second, after the air is accelerated by a cyclone accelerator, the air circulation speed is increased by about 16 times at most, and the air around the fan head is surrounded by an annular inner lip of the bladeless fan head, and the surrounding force drives the air near the fan head to enter the fan head and blow out at a high speed, and therefore, the air outlet portion 112 does not need blades, and therefore, the air outlet portion does not stick to dust and injure a user, including but not limited thereto, as long as the air outlet portion 112 can generate air to cool the user.

Referring to fig. 2B and 2C, the fixing base 1125 includes an upper cover 11251 and a lower cover 11252 detachably connected to each other, the fan blade 1126 includes a pivot shaft 11261, a shaft hole is formed when the upper cover 11251 is connected to the lower cover 11252, and the pivot shaft 11261 is received in the shaft hole and can rotate relative to the shaft hole to pivot the fixing base 1125 and the fan blade 1126. Specifically, the upper cover 11251 includes a first axle hole structure 11254 with a notch, the first axle hole structure 11254 is formed by two spaced apart convex plates, and the first axle hole structure 11254 is formed by a protrusion from the side of the upper cover 11251 opposite to the lower cover 11252. The lower cover 11252 is provided with a second shaft hole structure 11256. The second shaft hole structure 11256 protrudes from the end surface of the lower cover 11252, and a fastening groove 11257 is disposed in the middle of the second shaft hole structure 11256, so that when the upper cover 11251 is connected to the lower cover 11252, the first shaft hole structure 11254 and the second shaft hole structure 11256 form the shaft hole. At this time, the convex plate of the first shaft hole structure 11254 near the center of the upper cover 11251 is snapped into the snapping groove 11257. The locations of the first and second

shaft aperture structures

11254 and 11256 may be interchanged.

Referring to fig. 2C, the fan blade 1126 includes a blade portion 11262 and a pivot portion 11263, and the pivot shaft 11261 is disposed on the pivot portion 11263. The pivot 11263 further includes a pivot hole 11264, and the pivot hole 11264 is disposed between the blade 11262 and the pivot axis 11261. When the fan blades 1126 are rotatably connected in the shaft holes, the first shaft hole structure 11254 and the second shaft hole structure 11256 are partially inserted through the pivot hole 11264, and specifically, the pivot hole 11264 is inserted through a convex plate far from the center of the first shaft hole structure 11254.

Optionally, when the motor 1121 stops rotating, the plane of the fixed seat 1125 forms an angle of 30 ° to 90 ° with the orientation of the fan blade 1126; the friction force between the fixed seat 1125 and the fan blade 1126 is greater than or equal to the gravity of the fan blade 1126, so that the fan blade 1126 cannot be unfolded freely under the action of the gravity when being folded and stored along the pivoting shaft 11261. It can be understood that the friction force between the fan blade 1126 and the fixing seat 1125 is smaller than the centrifugal force generated when the motor 1121 drives the fan blade 1126 to rotate, so that the rotating fan blade 1126 can rotate and open under the action of the centrifugal force when the motor 1121 operates; optionally, the inner sides of the first and second

shaft hole structures

11254 and 11256 are rounded, so that the pivoting shaft 11261 can rotate faster relative to the shaft hole when the fan blade 1126 is rotated by the motor 1121, so as to open the fan blade 1126 faster to the maximum projected area on the rotation plane.

Referring to fig. 2D, a fan head 2123 according to a first modified embodiment of the fan head 1123 of the present invention includes a fixing base 2125 and blades 2126, wherein the fixing base 2125 includes an upper cover 21251 and a lower cover 21252 detachably connected, a pivot shaft 21261 is disposed on the upper cover 21251, the blades 2126 include a shaft hole 21253, a notch 21257 is disposed on the shaft hole 21253, and the shaft hole 21253 clamps the pivot shaft 21261 through the notch 21257 to pivot the fixing base 2125 and the blades 2126. Alternatively, the opening of the notch 21257 is smaller than the size of the pivot shaft 21261, so that the pivot shaft 21261 snapped into the shaft hole 21253 cannot easily fall out of the notch 21257.

It is understood that the pivot shaft 21261 may be disposed on the lower cover 21252, as long as the pivot shaft 21261 is matched with the shaft hole 21253.

Referring to fig. 2E, as a fan head 3123 according to a second variation of the fan head 1123 of the present invention, the fan head 3125 includes a fixing base 3125 and fan blades 3126, a pivot shaft 31261 is disposed on the fan blades 3126, a shaft hole 31253 is disposed on the fixing base 3125, a notch 31257 is disposed on the shaft hole 31253, and the pivot shaft 31261 is inserted into the shaft hole 31253 through the notch 31257 and can rotate relative to the shaft hole 31253 to pivotally connect the fixing base 3125 and the fan blades 3126. Optionally, the opening of the gap 31257 is smaller than the size of the pivot axis 31261, so that the pivot axis 31261 snapped into the axis hole 31253 does not easily protrude from the gap 31257.

It is understood that the pivot shaft 31261 can be disposed on the fixing seat 3125 and the shaft hole 31253 can be disposed on the fan blade 3126, as long as the pivot shaft 31261 is matched with the shaft hole 31253.

Referring to fig. 3, the main body 111 includes a housing 1111, a power supply component 1112 and an adjusting switch 1115, the power supply component 1112 is disposed in the housing 1111, specifically, the housing 1111 includes a cover 1113 and a barrel 1114, the cover 1113 is fixedly connected to the barrel 1114, an accommodating space is formed between the cover 1113 and the barrel 1114, the power supply component 1112 is accommodated in the accommodating space, and the adjusting switch 1115 is disposed between the power supply component 1112 and the air outlet 112 and electrically connected to the power supply component 1112 for adjusting the power of the power supply component 1112 for providing the electric energy to the air outlet 112.

Referring to fig. 3, the power module 1112 further includes a circuit board 1116, a cell 1117, an input port 1118, and an output port 1119, wherein the circuit board 1116 is electrically connected to the cell 1117, the input port 1118, and the output port 1119, respectively, the circuit board 1116 is also electrically connected to a motor 1121 of the air outlet portion 112 for adjusting and controlling the air outlet speed of the air outlet portion 112, the cell 1117 is used for providing power, the input port 1118 is partially exposed on the surface of the barrel 1114 for being connected to an external power supply to charge the cell 1117, and the output port 1119 is partially exposed on the surface of the barrel 1114 for being connected to an external electronic product to charge the external electronic product.

The adjusting switch 1115 is electrically connected with the circuit board 1116, and the adjusting switch 1115 is exposed on the surface of the cylinder 1114; it can be understood that the air outlet speed of the air outlet portion 112 of the present invention is the rotation speed of the motor 1121, when the rotation speed of the motor 1121 is fast, the air outlet speed is fast, and when the rotation speed of the motor 1121 is slow, the air outlet speed is slow; the utility model discloses a fan 10 can also charge for the electronic product is emergent when possessing good air-out performance, acts as portable power source's effect, has richened fan 10's function.

Optionally, the power module 1112 further includes an indicator light 1120, the indicator light 1120 is electrically connected to the circuit board 1116, the indicator light 1120 is fixedly disposed in the housing 1111 and exposed to the surface of the housing 1111, and the indicator light 1120 is used for indicating the charging/discharging status of the power module 1112. The user can specify the operating state of the cell 1117 according to the indicator light 1120.

It should be noted that the power supply module 1112 can also be configured to be electrically connected to a dc or ac power source, and in other embodiments, the power supply module 1112 can include a dry cell energy storage device.

Referring to fig. 3, one end of the housing 1111 is detachably connected to the cover 12, the other end of the housing 1111 is provided with a plug groove 11141, and the cover 12 is inserted into the plug groove 11141 to be plug-connected to the plug groove 11141 to increase the size of the housing 1111. When the housing 1111 is smaller and not suitable for being held by a user, the cover 12 can be suitable for being held by the user after a part of the size of the housing 1111 is increased; and the cover 12 can be inserted into the insertion groove 11141 after being taken down, so that the probability that the cover 12 is forgotten to be lost can be reduced, and the completeness of the fan 10 can be favorably maintained.

Referring to fig. 4A, fig. 4B and fig. 4C, a first receiving groove 1127 is formed at one end of the housing 1122, a second receiving groove 11131 is formed in the cover 1113, one end of the resilient portion 113 is received in the first receiving groove 1127, and the other end of the resilient portion 113 is received in the second receiving groove 11131.

Optionally, a first position-limiting portion 1128 is further disposed on one side of the housing 1122 of the first receiving groove 1127, a second position-limiting portion 11132 is disposed in the second receiving groove 11131, and the first position-limiting portion 1128 and the second position-limiting portion 11132 are cooperatively connected to prevent the air outlet portion 112 from being separated from the main body portion 111. Specifically, the first position-limiting part 1128 and the second position-limiting part 11132 are connected in a manner of fitting through a shaft hole so as to prevent the air outlet part 112 from being separated from the main body 111; the shaft hole fits in the spring-back portion 113, so that the spring-back portion can perform spring-back rotation around the axis of the shaft. Specifically, the first position-limiting portion 1128 is a shaft, and the second position-limiting portion 11132 is a hole, including but not limited thereto, the first position-limiting portion 1128 can also be a hole, and the second position-limiting portion 11132 can also be a shaft, as long as the first position-limiting portion 1128 and the second position-limiting portion 11132 are matched and connected to prevent the air-out portion 112 from separating from the main body 111.

In the utility model, the limiting function of the air outlet part 112 and the main body part 111 is realized through the shaft hole matching of the first limiting part 1128 and the second limiting part 11132, so that the air outlet part 112 and the main body part 111 can be prevented from being separated by the rebound part 113 when the air outlet part 112 is rebounded; alternatively, the stopper 11134 is disposed at the notch of the second accommodation groove 11131 of the cover 1113 and on the rebound path of the rebound portion 113.

Referring to fig. 1C, fig. 5A and fig. 5B, optionally, the adjusting switch 1115 is a sliding switch and can slide towards a direction close to the cover 12 or away from the cover 12, and when the adjusting switch 1115 slides towards a direction close to the cover 12, the air outlet speed of the air outlet portion 112 increases, and can finally reach the maximum air outlet speed, and when the adjusting switch 1115 slides towards a direction away from the cover 12, the air outlet speed of the air outlet portion 112 gradually decreases, and the final air outlet speed can be 0, which is the power-off state; alternatively, the specific sliding direction of the adjusting switch 1115 is not limited, as long as the adjusting switch 1115 increases the air outlet speed of the air outlet part 112 when moving towards the cover 12, and decreases the air outlet speed of the air outlet part 112 when moving away from the cover 12.

Referring to fig. 5A and 5B, a protrusion 11151 is disposed at an end of the adjusting switch 1115 close to the cover 12, and the housing 1111 has a notch 11133 for engaging with the cover 12, specifically, the notch 11133 is disposed on the cover 1113. The opening of the notch 11133 is oriented toward the protrusion 11151, and the protrusion 11151 moves toward the bottom of the notch 11133 when the adjustment switch 1115 moves toward the cover 12. When the cover 12 is connected to the main body 11, in the present invention, the cover 12 is connected to the main body 11 by being connected to the cover 1113, the edge portion of the cover 12 blocks the opening of the notch 11133, and the protrusion 11151 abuts against the cover 12 fixed in the notch 11133, so that the protrusion 11151 cannot move to the bottom of the notch 11133. Optionally, the cylinder 1114 is further provided with an opening 11142, the adjusting switch 1115 can slide along the direction of the opening 11142, and when the protrusion 11151 extends into the notch 11133, the length L of the protrusion 11151 is greater than the sliding distance d of the adjusting switch 1115 in the opening 11142.

It will be appreciated that when the adjustment switch 1115 is moved in a direction towards the cover 12, the projection 11151 is also moved in a simultaneous direction towards the cover 12; when the adjustment switch 1115 moves away from the cap 12, the protrusion 11151 also moves away from the cap 12 synchronously; it can be understood that, before the cover 12 is connected to the main body 11, in order to prevent the air outlet portion 112 from being interfered by the continuous rotation of the air outlet portion 112, the adjusting switch 1115 is generally slid in a direction away from the cover 12, and the air outlet speed of the air outlet portion 112 is 0; when the cover 12 is connected to the main body 11, the cover 12 is detachably connected to the main body 11, the edge portion of the cover 12 blocks the notch 11133, the protrusion 11151 cannot move to the bottom of the notch 11133 when the cover 12 is not separated from the main body 11, that is, when the air outlet 112 is located in the cover 12, the adjusting switch 1115 cannot increase the air outlet speed of the air outlet 112, and the motor 1121 cannot drive the fan head 1123 to rotate. The fan head 1123 is prevented from rotating in the cover 12, the motor 1121 is prevented from being burnt out due to too long working time of the motor 1121 in a clamping state, the possibility that the air outlet portion 112 is damaged is avoided, and the service life of the fan 10 is prolonged. It can be understood that, when the fan 10 is not used, a user may connect the cover 12 to the main body 111, and at this time, by pulling the cover 12 to make the air outlet 112 and the main body 111 on the same straight line, and closing the cover 12 and the main body 111, when the cover 12 is closed on the main body 111, the edge portion of the cover 12 blocks the notch 11133 and the adjusting switch 1115 slides in a direction away from the cover 12 to stop controlling the motor 1121, so that the power supply can be further turned off by closing the cover 12.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, and improvements made within the principle of the present invention should be included within the protection scope of the present invention.

Claims

1. A fan head, its be used for with the motor be connected and by the motor drive rotation in order to produce wind, its characterized in that: the fan head comprises a fixed seat and at least two fan blades, a pin joint shaft is arranged on one of the fixed seat or the fan blades, a shaft hole is formed in the other one of the fixed seat or the fan blades, the fixed seat and the fan blades are connected through the pin joint shaft and the shaft hole in a rotating mode, when the motor runs, the motor drives the fan blades to rotate, the fan blades rotate and open under the action of centrifugal force, and when the motor stops rotating, the orientation of the fan blades and the plane where the fixed seat is located form an included angle.

2. The fan head of claim 1, wherein: the fixing seat comprises an upper cover and a lower cover which are detachably connected, a first shaft hole structure is arranged on the upper cover, the first shaft hole structure is formed by two separated convex plates formed by protruding one side of the upper cover opposite to the lower cover, a second shaft hole structure is arranged on the end surface of the lower cover, and a clamping groove is formed in the second shaft hole structure; when the upper cover is buckled with the lower cover, the first shaft hole structure and the second shaft hole structure form the shaft hole, and the convex plate close to the center of the upper cover is clamped in the clamping groove.

3. The fan head of claim 2, wherein: the flabellum includes flabellum portion and pin joint portion, the pin joint axle sets up in pin joint portion, and pin joint portion still includes the pin joint hole, and the pin joint hole sets up between flabellum portion and pin joint axle, works as when the flabellum rotates to be connected in the shaft hole, first shaft hole structure and second shaft hole structure part wear to establish and pass through the pin joint hole.

4. The fan head of claim 1, wherein: the pivoting shaft is arranged on the fan blade, a shaft hole is formed in the fixed seat, a notch is formed in the shaft hole, and the pivoting shaft is clamped into the shaft hole through the notch and can rotate relative to the shaft hole so as to enable the fixed seat to be pivoted with the fan blade; or

5. The fan head of claim 1, wherein: the number of the fan blades is 2-7, and the included angle between the orientation of the fan blades and the plane where the fixed seat is located is 30-90 degrees.

6. A fan, characterized by: the fan comprises a main body, the main body comprises a main body part and an air outlet part, the main body part is connected with the air outlet part, the main body part is used for relatively fixing the air outlet part and controlling the air outlet speed of the air outlet part, the air outlet part comprises a motor and the fan head according to any one of claims 1-5, the motor comprises an output end, the motor is fixedly connected with the fan head through the output end, and the motor drives the fan head to rotate to generate wind when running.

7. The fan of claim 6, wherein: the fan still includes the lid, the lid is connected with the one end of main part is detachable, the main part still includes resilience portion, the main part is connected with air-out portion through resilience portion, and when the lid was connected with the main part, air-out portion was located the lid and resilience portion was compressed, and when lid and main part separated, the compression the power of resilience portion disappears and resilience portion can the reconversion rebound and drive air-out portion rotatory extremely with the main part is certain angle.

8. The fan as claimed in claim 7, wherein: the main body part comprises a shell, a power supply assembly and an adjusting switch, the power supply assembly is electrically connected with the air outlet part and the adjusting switch respectively, the power supply assembly is fixedly arranged in the shell, the adjusting switch is exposed out of the shell and slides relative to the shell, and the adjusting switch is used for adjusting the power of the power supply assembly for providing electric energy for the air outlet part.

9. The fan of claim 8, wherein: the power supply assembly further comprises a circuit board, an electric core, an input port and an output port, wherein the circuit board is electrically connected with the regulating switch, the electric core, the input port, the output port and the air outlet part respectively, the electric core is used for providing a power supply, the input port is partially exposed out of the surface of the shell, the input port is used for being connected with an external power supply to charge the electric core, the output port is partially exposed out of the surface of the shell, and the output port is used for being connected with an external electronic product to charge the external electronic product.

10. The fan as claimed in claim 9, wherein: the power supply module further comprises an indicator light which is fixedly arranged in the shell and exposed on the surface of the shell, the indicator light is electrically connected with the circuit board, the indicator light is used for indicating the charging and discharging state of the power supply module, the other end of the main body is provided with an insertion groove, and the cover is inserted into the insertion groove to be in insertion connection with the insertion groove so as to increase the size of the main body.