CN213331628U

CN213331628U - Portable USB fan

Info

Publication number: CN213331628U
Application number: CN202022310370.9U
Authority: CN
Inventors: 刘红
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-10-16
Filing date: 2020-10-16
Publication date: 2021-06-01
Anticipated expiration: 2030-10-16

Abstract

The utility model relates to the technical field of USB fans, in particular to a portable USB fan, which comprises a shell, a rotating rod and a support rod, wherein a battery is fixedly connected in the shell, a motor is fixedly connected at the top of the shell, a main shaft at the top of the motor is fixedly connected with fan blades, a fixed block is fixedly connected at the bottom of the shell, an upper limit block is arranged in the fixed block, limit rods are arranged at two sides in the upper limit block, and springs are arranged at the outer sides of the limit rods. The safety of the USB fan and a user is protected.

Description

Portable USB fan

Technical Field

The utility model relates to a USB fan technical field specifically is a portable USB fan.

Background

The USB fan is a miniature electric fan with a USB interface of a desktop or notebook computer, and is connected with the computer through the USB interface of the computer, the flexible corrugated pipe can enable the USB fan to blow to any direction, and the USB fan is electricity-saving, the USB interface on the computer can provide 5-volt electric power and 500-mA current for external equipment, and the USB fan is a miniature fan with a USB interface for providing a power supply.

Traditional USB fan is put the desktop generally and is used, and is inconvenient to carry, and traditional USB fan charges the interface and often remains the state with the battery switch-on all the time when using simultaneously, and the circular telegram always can cause the damage of the interface that charges, and the interface that charges simultaneously is for protecting, consequently, proposes a portable USB fan to above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a portable USB fan to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a portable USB fan comprises a shell, a rotating rod and a supporting rod, wherein a battery is fixedly connected in the shell, a motor is fixedly connected at the top of the shell, a fan blade is fixedly connected to a spindle at the top of the motor, a fixed block is fixedly connected at the bottom of the shell, an upper limiting block is arranged in the fixed block, limiting rods are arranged on two sides in the upper limiting block, springs are arranged on the outer sides of the limiting rods, the top of each limiting rod is fixedly connected with the shell, the rotating rod is fixedly connected at the bottom of the shell, a lower limiting block is rotatably connected on the outer side of the bottom of the rotating rod, an upper limiting block is arranged on the outer side of the rotating rod, an upper contact piece is fixedly connected at the bottom of the upper limiting block, lower contact pieces which are uniformly distributed are fixedly connected at the top of the lower limiting block, positioning blocks which are uniformly distributed are fixedly connected at the bottom of the upper limiting block, the improved cable protection device is characterized in that a rubber layer is arranged on the outer side of the shell, a protection shell is fixedly connected to the outer side of the rubber layer, a rope is fixedly connected to the rear portion of the protection shell, the other end of the rope is fixedly connected with the shell, a rotating block is rotatably connected to the upper portion of the outer side of the shell, a rotating plate is arranged on the outer side of the rotating block, the bottom of the rotating plate is fixedly connected with a supporting rod, a nut is fixedly connected to the upper portion of the left side of the shell, a bolt is.

Preferably, the right front of the support rod is arranged in a U shape, the left side of the support rod is arranged in an L shape, and the support rod is arranged outside the shell.

Preferably, the top of the spring is fixedly connected with the shell, the bottom of the spring is fixedly connected with the upper limiting block, the number of the springs is two, and the number of the limiting rods is two.

Preferably, the number of the positioning blocks is three, the cross sections of the positioning blocks are arranged in a triangular shape, the tops of the lower limiting blocks are provided with uniformly distributed limiting grooves, and both sides of the limiting grooves of the lower limiting blocks are fixedly connected with lower contact pieces.

Preferably, the bottom of the shell is provided with a groove, and an upper limiting block is arranged in the groove arranged in the shell.

Compared with the prior art, the beneficial effects of the utility model are that:

1. in the utility model, the three different types of interfaces arranged at the bottom of the lower limiting block can be connected with the battery through the upper contact piece and the lower contact piece, and the lower limiting block can be rotated through the rotating rod, the positioning block, the limiting rod and the spring to select different interfaces, so that the interfaces are not electrified when not in use, the damage of the interfaces caused by electrification is reduced, meanwhile, the battery short circuit caused by the simultaneous insertion of the two interfaces can be prevented, and the safety of the USB fan and a user is protected;

2. the utility model discloses in, the rope through setting up can prevent to drop when protecting the casing and lose when taking off, can be this USB fan through the bracing piece and can place when using and remain stable on the plane, can adjust the angle of bracing piece through the bolt simultaneously and make the bracing piece hang in knapsack or pocket, prevent that this USB fan from losing, can prevent this USB fan roll simultaneously, and the protection USB fan can not damage.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the overall side structure of the present invention;

FIG. 3 is a schematic view of the top structure of the lower limiting block of the present invention;

FIG. 4 is a schematic side view of the lower limiting block of the present invention;

FIG. 5 is a schematic view of the bottom structure of the lower limiting block of the present invention;

FIG. 6 is a schematic side view of the limiting block of the present invention;

fig. 7 is a schematic structural diagram of a portion a of fig. 1 according to the present invention.

In the figure: 1-shell, 2-motor, 3-fan blade, 4-battery, 5-upper limit block, 6-lower limit block, 7-rotating rod, 8-limit rod, 9-spring, 10-locating block, 11-upper contact, 12-lower contact, 13-fixed block, 14-protective shell, 15-rubber layer, 16-support rod, 17-rotating plate, 18-rotating block, 19-bolt, 20-nut and 21-rope.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-7, the present invention provides a technical solution:

a portable USB fan comprises a shell 1, a rotating rod 7 and a support rod 16, wherein a battery 4 is fixedly connected in the shell 1, a motor 2 is fixedly connected at the top of the shell 1, a main shaft at the top of the motor 2 is fixedly connected with fan blades 3, a fixed block 13 is fixedly connected at the bottom of the shell 1, an upper limiting block 5 is arranged in the fixed block 13, limiting rods 8 are arranged at two sides in the upper limiting block 5, springs 9 are arranged at the outer sides of the limiting rods 8, the top of the limiting rods 8 is fixedly connected with the shell 1, the rotating rod 7 is fixedly connected at the bottom of the shell 1, a lower limiting block 6 is rotatably connected at the outer side of the bottom of the rotating rod 7, the upper limiting block 5 is arranged at the outer side of the rotating rod 7, an upper contact plate 11 is fixedly connected at the bottom of the upper limiting block 5, lower contact plates 12 are uniformly distributed at the top of the, the bottom of the lower limiting block 6 is fixedly connected with three interfaces of different types which are uniformly distributed, the charging interfaces can be powered off when not used, the interfaces are protected, the two interfaces are prevented from being inserted simultaneously to cause short circuit, the rubber layer 15 is arranged on the outer side of the shell 1, the protective shell 14 is fixedly connected on the outer side of the rubber layer 15, the rope 21 is fixedly connected behind the protective shell 14, the other end of the rope 21 is fixedly connected with the shell 1, the charging interface can be protected from being damaged through the arrangement, the upper part of the outer side of the shell 1 is rotatably connected with the rotating block 18, the outer side of the rotating block 18 is provided with the rotating plate 17, the bottom of the rotating plate 17 is fixedly connected with the supporting rod 16, the upper part of the left side of the shell 1 is internally and fixedly connected with the nut 20, the inner part of the nut 20 is spirally connected with the bolt 19, the outer side of the bolt 19 is provided with the rotating plate 17, the angle of the supporting rod 16 can be adjusted through the arrangement, and the stability of the USB fan during placement is achieved.

The right front of the supporting rod 16 is arranged in a U shape, the left side of the supporting rod 16 is arranged in an L shape, the supporting rod 16 is arranged at the outer side of the shell 1, through the arrangement, the supporting rod 16 can conveniently support the USB fan, the top of the spring 9 is fixedly connected with the shell 1, the bottom of the spring 9 is fixedly connected with the upper limiting block 5, the number of the springs 9 is two, the number of the limiting rods 8 is two, the number of the positioning blocks 10 is three, the cross section of each positioning block 10 is arranged in a triangle, the top of the lower limiting block 6 is provided with evenly distributed limiting grooves, the two sides of each limiting groove of the lower limiting block 6 are fixedly connected with the lower contact pieces 12, through this setting can be convenient change the interface through the stopper down, facilitate the use, the recess has been seted up to casing 1 bottom, is equipped with stopper 5 on the casing 1 recess of establishing, can make stopper 6 rotate more steadily down through this setting.

The working process is as follows: when the portable USB fan is used, the protective shell 14 is firstly taken down, the rubber layer 15 fixedly connected in the protective shell 14 is taken down together with the protective shell 14, the protective shell 14 cannot be lost under the action of the rope 21, the lower limiting block 6 is rotated according to the existing charger connector type, the lower limiting block 6 rotates on the rotating rod 7, the positioning block 10 moves upwards under the action of the lower limiting block 6 to leave the lower limiting block 6, the upper limiting block 5 moves upwards outside the limiting rod 8 under the action of the positioning block 10, the spring 9 is compressed to generate elasticity, the lower contact 12 is separated from the upper contact 11, the positioning block 10 moves on the top of the lower limiting block 6 until the positioning block 10 enters the groove arranged in the lower limiting block 6, the upper contact 11 is contacted with the other two lower contacts 12 to form a passage, and the battery 4 can be charged, after finishing charging, cover protection casing 14, press the start button motor 2 this moment and drive flabellum 3 and rotate, place this USB fan when the plane is used when needs, can rotate bolt 19, this moment under nut 20's effect, bolt 19 moves left, can rotate bracing piece 16 this moment, after the angle of bracing piece 16 has been adjusted, reverse rotation bolt 19, it is spacing to bracing piece 16, when inferior USB fan does not use, can be through the angle of adjustment bracing piece 16, make bracing piece 16 can hang on the package, prevent that the USB fan from dropping, can prevent simultaneously that the USB fan from rolling in the package and causing the damage, when needs charge to other equipment through this USB fan, take off the position of protection casing 14 adjustment output interface and can charge for other equipment.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A portable USB fan, includes casing (1), bull stick (7) and bracing piece (16), its characterized in that: the improved fan blade is characterized in that a battery (4) is fixedly connected in the shell (1), a motor (2) is fixedly connected at the top of the shell (1), fan blades (3) are fixedly connected to a main shaft at the top of the motor (2), a fixing block (13) is fixedly connected at the bottom of the shell (1), an upper limiting block (5) is arranged in the fixing block (13), limiting rods (8) are arranged on two sides in the upper limiting block (5), springs (9) are arranged on the outer sides of the limiting rods (8), the top of each limiting rod (8) is fixedly connected with the shell (1), a rotating rod (7) is fixedly connected at the bottom of the shell (1), a lower limiting block (6) is rotatably connected at the outer side of the bottom of the rotating rod (7), the upper limiting block (5) is fixedly connected with an upper contact blade (11), a lower contact blade (12) which is uniformly distributed is fixedly connected at the top of the lower limiting block (6, the bottom of the upper limiting block (5) is fixedly connected with positioning blocks (10) which are uniformly distributed, the bottom of each positioning block (10) is provided with a lower limiting block (6), the bottom of each lower limiting block (6) is fixedly connected with interfaces of three different types which are uniformly distributed, a rubber layer (15) is arranged on the outer side of the shell (1), a protective shell (14) is fixedly connected with the outer side of the rubber layer (15), a rope (21) is fixedly connected with the rear of the protective shell (14), the other end of the rope (21) is fixedly connected with the shell (1), a rotating block (18) is rotatably connected with the upper part of the outer side of the shell (1), a rotating plate (17) is arranged on the outer side of the rotating block (18), the bottom of the rotating plate (17) is fixedly connected with a supporting rod (16), a nut (20) is fixedly connected with the upper part of the left side of the, and a rotating plate (17) is arranged on the outer side of the bolt (19).

2. The portable USB fan according to claim 1, wherein: the support rod (16) is arranged in a U-shaped manner right in front, the support rod (16) is arranged in an L-shaped manner on the left side, and the support rod (16) is arranged on the outer side of the shell (1).

3. The portable USB fan according to claim 1, wherein: the top of the spring (9) is fixedly connected with the shell (1), the bottom of the spring (9) is fixedly connected with the upper limiting block (5), the number of the springs (9) is two, and the number of the limiting rods (8) is two.

4. The portable USB fan according to claim 1, wherein: the number of the positioning blocks (10) is three, the cross section of each positioning block (10) is triangular, the tops of the lower limiting blocks (6) are provided with limiting grooves which are uniformly distributed, and both sides of each limiting groove formed in each lower limiting block (6) are fixedly connected with lower contact pieces (12).

5. The portable USB fan according to claim 1, wherein: the bottom of the shell (1) is provided with a groove, and an upper limiting block (5) is arranged in the groove arranged in the shell (1).