CN221170063U

CN221170063U - Portable electric fan with detachable base

Info

Publication number: CN221170063U
Application number: CN202322973952.9U
Authority: CN
Inventors: 徒为松
Original assignee: Ningbo Wild Wolf Photoelectric Technology Co ltd
Current assignee: Ningbo Wild Wolf Photoelectric Technology Co ltd
Priority date: 2023-11-03
Filing date: 2023-11-03
Publication date: 2024-06-18
Anticipated expiration: 2033-11-03

Abstract

The utility model discloses a portable electric fan with a detachable base, and relates to the technical field of electric fans. The existing portable fan has single use scene, and cannot give consideration to fixed blowing, clamping blowing, handheld blowing and the like. The utility model provides a portable electric fan with a detachable base, which comprises a fan shell, a connecting rod and a base, wherein two ends of the connecting rod are respectively connected with the shell and the base, the base comprises a first clamping plate and a second clamping plate, a torsion spring is arranged between the clamping plates, a through hole is formed in the first clamping plate, the bottom surface of the second clamping plate is a horizontal plane, a hollow short column higher than the surface is arranged on the top surface, one end of the connecting rod is pivoted with the fan shell, and the other end of the connecting rod passes through the through hole in a clearance fit manner and is detachably inserted into the hollow column. According to the portable fan, the connecting rod is detachably connected with the base, so that the hand-held fan, the desktop fan and the clamping type fan can be arbitrarily switched, and one portable fan can be suitable for various use scenes or use requirements.

Description

Portable electric fan with detachable base

Technical Field

The utility model relates to the technical field of electric fans, in particular to a portable electric fan with a power supply, wherein a base which can be held, placed and clamped by a hand is detachable.

Background

The portable electric fan is used as a common daily article, and generally comprises a shell with a built-in motor and fan blades and a connecting rod connected with the shell, wherein a power supply, a switch and other components capable of providing direct current are arranged inside the connecting rod, the power supply can be charged through a USB interface or a dry battery is used for supplying power, and the portable electric fan is free from being involved by an electric wire because the power is not supplied through an external electric wire, and is easy to carry. The use scenes of the portable electric fan can be divided into: the electric fan is placed on a supporting surface such as a tabletop through the supporting seat, is clamped on a supporting object such as a bedside through the clamping head, and is held on a hand through the holding connecting rod (handle).

The existing portable electric fans can only be applied to a single scene, are difficult to be compatible with different use scenes of placing, clamping and holding the electric fans, lack of versatility and convenience, are difficult to convert application scenes, sometimes have to reserve a plurality of electric fans, occupy use and storage space, and waste resources.

Disclosure of Invention

The utility model aims to provide a portable electric fan with a detachable base, and the electric fan connecting rod is detachably arranged on the base with a clamping function, so that the electric fan can be conveniently assembled or separated from the base according to requirements, and the electric fan can be randomly switched to be in a handheld, placing or clamping state.

The utility model is realized by adopting the following technical scheme: the portable electric fan with the detachable base comprises a fan shell with a built-in motor and fan blades, a connecting rod and a base, wherein two ends of the connecting rod are respectively connected with the shell and the base, an inner cavity of the connecting rod is a hollow cavity capable of containing a power supply and a switch, the base comprises a first clamping plate and a second clamping plate, and a torsion spring which is in butt joint with the first clamping plate and the second clamping plate is arranged between the first clamping plate and the second clamping plate, so that the front ends of the first clamping plate and the second clamping plate tend to be attached; the first clamping plate is provided with a through hole, the bottom surface of the second clamping plate is a horizontal plane, the top surface is provided with a hollow short column higher than the surface, one end of the connecting rod is pivoted with the fan shell, and the other end of the connecting rod passes through the through hole in a clearance fit way and is detachably inserted into the hollow short column.

The base consists of two clamping plates, so that the electric fan assembled on the base can be switched in use mode; when the clamping plate is clamped on the supporting object, the electric fan can be fixed on the clamping object; because the bottom surface of one clamping plate is a horizontal bottom surface, the electric fan can be stably placed on the supporting surfaces such as a tabletop and the like when the connecting rod is inserted onto the base; when the connecting rod is separated from the base, the electric fan can be held by hand. The first clamping plate is provided with the through hole, so that the connecting rod can pass through the through hole and the opening and closing angle of clamping is not affected, and the second clamping plate is provided with the hollow short column, so that the connecting rod can be conveniently inserted and positioned or detached.

In order to facilitate the disassembly and assembly of the connecting rod and the base, symmetrical positioning protrusions are arranged on the outer wall of the connecting rod, radially symmetrical baffle plates with caulking grooves are arranged on the hollow short columns, and when the connecting rod is inserted into the hollow short columns, the positioning protrusions are blocked in the caulking grooves of the baffle plates. The locating protrusions and the corresponding baffle plates are symmetrically arranged, so that the connecting rod can be installed positively and reversely according to the use requirement, and the elastic force of the baffle plates can facilitate the connection and the disassembly of the connecting rod.

The torsion springs are U-shaped double torsion springs, the top edges of the double torsion springs are arranged in the grooves of the first clamping plate, and the two free ends of the double torsion springs are abutted against the abutting grooves of the second clamping plate; the end edge of the first clamping plate extends out of a symmetrical first ear seat, the end edge of the second clamping plate upwards extends out of a second ear seat with a band-pass groove corresponding to the first ear seat, and a screw is screwed into the first ear seat and is in clearance fit with the band-pass groove on the second ear seat, so that the first clamping plate and the second clamping plate are movably connected.

In order to facilitate the electric fan to adjust the wind direction angle, the shell can be folded on the connecting rod for storage, the connecting rod comprises a lower inserting section and an upper pivoting section which are rotationally connected, the lower inserting section is inserted into the hollow short column, the upper pivoting section can radially rotate relative to the lower inserting section, and the upper pivoting section is pivoted with the shell, so that the shell can swing upward and downward relative to the upper pivoting section.

The back of the shell extends to form a sheet-shaped connecting part with a through hole, a groove is formed in the middle of the upper end of the upper pivoting section, and the connecting part is inserted into the groove and enables the connecting rod to be pivoted with the fan shell through a rod shaft penetrating through the groove and the connecting part. The shell is rotationally connected with the upper pivoting section through the rod shaft, and the rod shaft and the upper pivoting section can be integrally formed, so that the processing is facilitated.

In order to facilitate the connection of the electric wires and avoid the hidden safety hazards caused by the exposure, the upper pivoting section of the connecting rod is internally provided with a containing groove through which the electric wires pass, and the electric wires can pass through the containing groove to enter the lower inserting section of the connecting rod.

The lower end of the upper pivoting section extends to form a cylinder, the end part of the cylinder is provided with a convex ring edge, the top surface of the lower inserting section is provided with a round hole, the cylinder is placed into the round hole and enables the convex ring edge to be abutted against the hole wall of the round hole, and the upper pivoting section can rotate relative to the lower inserting section and is limited axially.

Further, in order to avoid the winding of the circuit in the connecting rod caused by overlarge rotation angle, a convex column is arranged below the round hole, a convex sheet is arranged at the edge of the convex ring edge, and when the convex sheet contacts with the convex column, the convex sheet can stop the upper pivoting section from rotating for 360 degrees relative to the lower inserting section.

The grid strip at the back of the shell at least comprises a hollow strip so as to be convenient for threading wires for connecting a power supply and a motor, prevent the wires from being exposed and increase the appearance, and the center of the front screen is provided with an illuminating lamp, so that the electric fan has an illuminating function. A supporting plate for supporting and placing small objects is arranged on the first clamping plate; the base can also be used as a bracket independently.

The upper pivoting section and the lower inserting section of the connecting rod are formed by splicing symmetrical two sections, and the splicing seam of the upper pivoting section is positioned on the splicing surface below the groove, and the splicing seam of the lower inserting section is positioned on the integral splicing surface, so that the processing and the installation are convenient; a flexible gasket is sleeved on the cylinder of the upper pivoting section so as to increase friction force and enable the limiting effect to be better.

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

The detachable assembly structure of the connecting rod and the base, designed by the utility model, gives consideration to different use modes of the portable electric fan, and can be used as a desktop electric fan when the connecting rod is inserted into the base; when the connecting rod is separated from the base, the electric fan can be used as a handheld electric fan; when the base is clamped on the supporting piece, the base can be used as a clamping type electric fan. Further, adopt the connecting rod pin joint in electric fan casing, the connecting rod for the clearance fit of two sections of rotation connection, connecting rod and splint through-hole, effectively matees the structure of putting and centre gripping, when guaranteeing to realize the aforesaid use mode and switch, both guaranteed the stability of grafting location and have the convenience of dismantling again, can also adjust electric fan's angle of pitching and air-out direction, increased portable electric fan's commonality, a thing is multi-purpose, has improved the convenience, has practiced thrift the resource.

Drawings

Fig. 1 is a schematic diagram of a portable electric fan with a detachable base according to a first embodiment;

fig. 2 is an exploded view of an electric fan according to the first embodiment;

Fig. 3 is a schematic back view of an electric fan according to the first embodiment.

In the figure: 1. a housing; 11. a connection part; 12. a lighting lamp; 2. a connecting rod; 20. positioning the bulge; 21. a lower plug section; 22. an upper pivoting section; 3. a base; 31. a first clamping plate; 310. a through hole; 311. a first ear mount; 312. a supporting plate; 32. a second clamping plate; 320. a hollow stub; 3201. a baffle; 321. a second ear mount; 33. and (3) a torsion spring.

Detailed Description

The utility model will now be described in more detail with reference to the accompanying drawings, to which it should be noted that the description is given by way of illustration only and not by way of limitation. Various embodiments may be combined with one another to form further embodiments not shown in the following description.

The embodiment provides a portable electric fan with a detachable base, and the electric fan can be held by hand and clamped or can be directly placed on a plane by inserting an electric fan connecting rod in a clamping plate base in a detachable manner.

Referring to the schematic diagram of the electric fan shown in fig. 1 and the explosion diagram of the electric fan shown in fig. 2, in this embodiment, a fan housing 1 with a motor and blades inside the electric fan, a connecting rod 2 and a base (3), two ends of the connecting rod 2 are respectively connected with the housing 1 and the base 3, an inner cavity of the connecting rod 2 is a hollow cavity capable of accommodating a power supply and a switch, and a charging interface or a battery mounting bin can be arranged on the connecting rod 2.

It should be noted that, the materials of the connecting rod 2, the housing 1 and the base 3 are not limited in this embodiment, and preferably, plastic materials are selected for reducing the overall weight of the electric fan so as to be portable.

The electric fan base 3 of this embodiment has a clamping function, specifically, the base 3 includes a first clamping plate 31 and a second clamping plate 32, a torsion spring 33 abutting against the first clamping plate 31 and the second clamping plate 32 is disposed between the first clamping plate 31 and the second clamping plate 32, so that the front ends of the first clamping plate 31 and the second clamping plate 32 tend to be attached, a through hole 310 is formed in the first clamping plate 31, the bottom surface of the second clamping plate 32 is a horizontal plane, the width of the second clamping plate 32 can be larger than that of the first clamping plate 31, the stability in placement is increased, the top surface of the second clamping plate 32 has a hollow short column 320 higher than the surface of the second clamping plate, one end of the connecting rod 2 is pivoted with the fan housing 1, the other end of the connecting rod 2 passes through the through hole 310 in a clearance fit manner and is detachably inserted into the hollow short column 320, when the connecting rod 2 is not assembled with the base 3, the connecting rod 2 is preferably elongated to be used as a handheld electric fan, and can accommodate a power supply, and is convenient to hold. The through hole 310 needs to enable the connecting rod 2 to pass through and be inserted into the hollow short column 320, so that the first clamping plate 31 can not influence the opening and closing angle due to the assembly of the connecting rod 2 during clamping. The back of first splint 31 and second splint 32 can set up a plurality of strengthening ribs, makes base 3 thickness need not great under the circumstances of guaranteeing intensity, and the electric fan is whole lighter, easily carries.

The outer wall of the connecting rod 2 is provided with symmetrical positioning bulges 20, the hollow short column 320 is provided with radially symmetrical baffle pieces 3201 with caulking grooves, and when the connecting rod 2 is inserted into the hollow short column 320, the positioning bulges 20 are blocked in the caulking grooves of the baffle pieces 3201. The elasticity of separation blade 3201 can be convenient for the installation and the dismantlement of connecting rod 2, and location protruding 20 plays the fixed effect of location after inconsistent with the caulking groove, and location protruding 20 can be circular shape, reduces the uncomfortable sense that touches location protruding 20 when electric fan is handheld. The torsion spring 33 is a U-shaped double torsion spring, the top edge of the double torsion spring is arranged in the groove of the first clamping plate 31, and two free ends of the double torsion spring are abutted in the abutting groove of the second clamping plate 32; the end edge of the first clamping plate 31 extends downwards to form a symmetrical first ear seat 311, the end edge of the second clamping plate 32 extends upwards to form a second ear seat 321 with a through groove corresponding to the first ear seat 311, and a screw is screwed into the first ear seat 311 and is in clearance fit with the through groove on the second ear seat 321, so that the first clamping plate 31 and the second clamping plate 32 are movably connected.

In order to enable the housing 1 to be angularly adjustable and foldable for placement, the connecting rod 2 comprises a lower insertion section 21 and an upper pivoting section 22 which are rotatably connected, wherein the lower end of the lower insertion section 21 is inserted into the hollow short column 320, the upper pivoting section 22 can rotate relative to the lower insertion section 21, and the upper end of the upper pivoting section 22 is pivoted with the housing 1, so that the housing 1 can swing relative to the upper pivoting section 22. Specifically, referring to the exploded view shown in fig. 2 and the schematic back view of the electric fan shown in fig. 3, a sheet-like connecting portion 11 with a through hole extends from the bottom back of the housing 1, a groove is formed in the middle of the upper end of the upper pivoting section 22, and the connecting portion 11 is inserted into the groove and then pivotally connects the connecting rod 2 to the fan housing 1 via a rod shaft passing through the groove and the connecting portion 11. The lower end of the upper pivoting section 22 extends to form a cylinder, the end of the cylinder is provided with a convex ring edge, the top surface of the lower inserting section 21 is provided with a round hole, the cylinder is placed into the round hole and enables the convex ring edge to be abutted against the hole wall of the round hole, and the upper pivoting section 22 can rotate relative to the lower inserting section 21 and is limited axially. The cylinder can be sleeved with a flexible gasket, and the flexible gasket can be a rubber ring, a nylon ring and the like so as to properly improve the rotating friction force and increase the positioning reliability. In order to prevent the internal circuit of the connecting rod 2 from winding due to over rotation, a convex column is arranged below the round hole, a convex sheet is arranged at the edge of the convex ring edge, and when the convex sheet contacts with the convex column, the convex sheet can prevent the upper pivoting section 22 from continuously rotating relative to the lower inserting section 21.

The upper pivoting section 22 and the lower inserting section 21 of the connecting rod 2 are formed by splicing symmetrical two leaves, and the splicing seam of the upper pivoting section 22 is positioned on the splicing surface below the groove, and the splicing seam of the lower inserting section (21) is positioned on the whole splicing surface. The upper pivoting section 22 can be spliced to form the rod shaft in the groove integrally with any one of the two halves, so that the processing is convenient, the lower inserting section 21 can be spliced to form the power supply and the like, and the upper pivoting section 22 and the lower inserting section 21 can be integrally formed, so that the processing is simple.

In order to prevent the circuit from being exposed and increase the safety and the aesthetic property of the electric fan, the upper pivoting section 22 of the connecting rod 2 is internally provided with a containing groove through which the power supply line passes, the power line can pass through the containing groove to enter the lower inserting section 21 of the connecting rod 2, and the grid strip at the back of the shell 1 at least comprises a hollow strip so as to conveniently pass through the power line communicated with the power supply and the motor.

In addition, the electric fan of the present embodiment further has an illumination function, and an illumination lamp 12 is installed in the center of the front mesh enclosure, and of course, the illumination lamp 12 may be replaced by other illumination sources, such as a color decorative lamp, a decorative lamp with a pattern, and the like.

When the connecting rod 2 is not assembled, the base 3 may also be used alone, for example, as a clip, and in this embodiment, the base 3 further has a supporting function, specifically, the first clamping plate 31 has a supporting plate 312 for supporting and placing small objects, for example, supporting and placing a mobile phone.

The above embodiments are only preferred embodiments of the present utility model, and the scope of the present utility model is not limited thereto, but any insubstantial changes and substitutions made by those skilled in the art on the basis of the present utility model are intended to be within the scope of the present utility model as claimed.

Claims

1. The utility model provides a portable electric fan with a detachable base, includes fan housing (1) of built-in motor and flabellum, connecting rod (2) and base (3), connecting rod (2) both ends respectively with housing (1) with base (3) link to each other, connecting rod (2) inner chamber is the cavity that can hold power and switch, a serial communication port, base (3) include first splint (31) and second splint (32), first splint (31) with set up between second splint (32) torsional spring (33) with both butt for first splint (31) with the front end of second splint (32) tends to laminating; the first clamping plate (31) is provided with a through hole (310), the bottom surface of the second clamping plate (32) is a horizontal plane, and the top surface of the second clamping plate is provided with a hollow short column (320) higher than the surface of the second clamping plate; one end of the connecting rod (2) is pivoted with the shell (1), and the other end of the connecting rod passes through the through hole (310) in a clearance fit way and is detachably inserted into the hollow short column (320).

2. The portable electric fan with a detachable base according to claim 1, wherein: the connecting rod (2) outer wall is provided with symmetrical positioning bulges (20), the hollow short column (320) is provided with radially symmetrical baffle plates (3201) with caulking grooves, and when the connecting rod (2) is inserted into the hollow short column (320), the positioning bulges (20) are blocked in the caulking grooves of the baffle plates (3201).

3. A portable electric fan with a detachable base according to claim 1 or 2, characterized in that: the torsion spring (33) is a U-shaped double torsion spring, the top edge of the double torsion spring is arranged in a groove of the first clamping plate (31), and two free ends of the double torsion spring are abutted in an abutting groove of the second clamping plate (32); the first ear seat (311) of symmetry extends downwards from the end edge of the first clamping plate (31), the second ear seat (321) of band-pass groove corresponding to the first ear seat (311) extends upwards from the end edge of the second clamping plate (32), and a screw is screwed into the first ear seat (311) and is in clearance fit with the through groove on the second ear seat (321), so that the first clamping plate (31) and the second clamping plate (32) are movably connected.

4. The portable electric fan with a detachable base according to claim 1, wherein: the connecting rod (2) comprises a lower inserting section (21) and an upper pivoting section (22) which are rotationally connected, the lower inserting section (21) is inserted into the hollow short column (320), the upper pivoting section (22) can radially rotate relative to the lower inserting section (21), and the upper pivoting section (22) is pivoted with the shell (1) so that the shell (1) can swing upward and downward relative to the upper pivoting section (22).

5. The portable electric fan with a detachable base as claimed in claim 4, wherein: the back of the shell (1) extends to form a sheet-shaped connecting part (11) with a through hole, a groove is formed in the middle of the upper end of the upper pivoting section (22), and the connecting part (11) is inserted into the groove and enables the connecting rod (2) to be pivoted with the fan shell (1) through a rod shaft penetrating through the groove and the connecting part (11).

6. The portable electric fan with a detachable base according to claim 5, wherein: the upper pivoting section (22) of the connecting rod (2) is internally provided with a containing groove through which a power supply line passes, and the power supply line can pass through the containing groove to enter the lower inserting section (21) of the connecting rod (2).

7. The portable electric fan with a detachable base as claimed in claim 4, wherein: the lower end of the upper pivoting section (22) extends to form a cylinder, the end part of the cylinder is provided with a convex ring edge, the top surface of the lower inserting section (21) is provided with a round hole, the cylinder is placed into the round hole, and the convex ring edge is abutted against the hole wall of the round hole, so that the upper pivoting section (22) can rotate relative to the lower inserting section (21) and is limited axially.

8. The portable electric fan with a detachable base as claimed in claim 7, wherein: a convex column is arranged below the round hole, a lug is arranged at the edge of the convex ring edge, and when the lug contacts with the convex column, the upper pivoting section (22) can be prevented from rotating for 360 degrees relative to the lower inserting section (21).

9. The portable electric fan with a detachable base according to claim 1, wherein: the grid strip at the back of the shell (1) at least comprises a hollow strip so as to be convenient for threading wires for connecting a power supply and a motor; a lighting lamp (12) is arranged at the center of the front net cover; the first clamping plate (31) is provided with a supporting plate (312) for supporting and placing small objects.

10. The portable electric fan with a detachable base according to claim 1, wherein: the upper pivoting section (22) and the lower inserting section (21) of the connecting rod (2) are formed by splicing symmetrical two leaves, and the splicing seam of the upper pivoting section (22) is positioned on the splicing surface below the groove, and the splicing seam of the lower inserting section (21) is positioned on the whole splicing surface; a flexible gasket is sleeved on the cylinder of the upper pivoting section (22).