CN204458568U

CN204458568U - Focus on variable without blade fan

Info

Publication number: CN204458568U
Application number: CN201520120930.0U
Authority: CN
Inventors: 周午贤
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-03-02
Filing date: 2015-03-02
Publication date: 2015-07-08
Anticipated expiration: 2025-03-02

Abstract

It is variable without blade fan that the utility model relates to a kind of focusing, and this focusing variable fan of the annular without blade fan head includes outer shroud frame and inner ring lip; At the surface of described inner ring lip circumference all Strap pores; Focussing mechanism includes focusing sheet, regulating ring and eccentric wheel; Each described focusing sheet runs through inner ring lip by bar shaped pore; Between described inner ring lip and outer shroud frame, each bar shaped pore place arranges an axes normal respectively in the eccentric wheel on inner ring lip surface; The focusing sheet just right with it is close at each described eccentric edge; Described regulating ring is matched to slip ring by ring buckle and annular groove and is rotatably connected between inner ring lip and outer shroud frame; Press close to an eccentric anchor ring secure attachment at described regulating ring and have sponge ring pad; Described sponge ring pad compresses each described eccentric wheel; This fan structure is simple, convenient operation, can adjust focusing angle as required.

Description

Focus on variable without blade fan

Technical field

The present invention relates to a kind of fan, especially, is a kind of without blade fan.

Background technique

Also be air multiplier without blade fan, it can produce the cool breeze that nature continues, and drives air movement in the course of the work, therefore can not hurt the finger of curious children, use safer without the need to blade; Meanwhile, owing to not having blade to be exposed to outside, therefore can not cover dust, use cleaner; In addition, its moulding is unique, and appearance is smooth, salubrious, deeply likes by masses; After air is sucked body from base by it, accelerated air by motor, cyclone accelerator, air is discharged from the finedraw of annular edge the most at last, final one continual cool air stream of formation; Current can accomplish to shake the head and angle of inclination without blade fan, but uncontrollable fan focusing, and the wind face size namely without blade fan blowout is fixed; Because wind-force is too concentrated, cold wind can only blow to a part of health in use, cannot accomplish natural wind simulating far away, if distant with fan, though wind face can be made to become large, need heighten gear accordingly, waste comparatively multiple-energy-source; When particularly many people use, wind face is too concentrated, also inconvenient when common use.

Summary of the invention

For the problems referred to above, the invention provides a kind of focus on variable without blade fan, this fan structure simply, convenient operation, focusing angle can be adjusted as required.

For solving the problem, the technical solution adopted in the present invention is: this focusing is variable includes base, motor, cyclone accelerator and annular fan head without blade fan; Described base offers intake grill, and described motor and cyclone accelerator are arranged in base; Be provided with annular fan head at the exhaust outlet of described base, described annular fan head includes outer shroud frame and inner ring lip; At the surface of described inner ring lip circumference all Strap pores; Between described outer shroud frame and inner ring lip, equidistantly focussing mechanism is installed; Described focussing mechanism includes focusing sheet, regulating ring and eccentric wheel; Described focusing sheet is made by ferromagnetic substance, and each described focusing sheet runs through inner ring lip by bar shaped pore; Between described inner ring lip and outer shroud frame, each bar shaped pore place arranges an axes normal respectively in the eccentric wheel on inner ring lip surface; Each described eccentric wheel is made by permanent-magnet material, and the focusing sheet just right with it is close at each described eccentric edge; There is aduncate annular groove in the edge of described inner ring lip and outer shroud frame, have with above-mentioned annular groove to the ring buckle mated in the edge of described regulating ring; Described regulating ring is matched to slip ring by ring buckle and annular groove and is rotatably connected between inner ring lip and outer shroud frame; Press close to an eccentric anchor ring secure attachment at described regulating ring and have sponge ring pad; Described sponge ring pad compresses each described eccentric wheel.

The invention has the beneficial effects as follows: in its natural state, each described focusing sheet is by eccentric wheel extruding, inclination, and each described focusing sheet and horizontal wind direction keep certain angle; When the motor is activated, air is sent between outer shroud frame and inner ring lip, flows out at a high speed eventually through the space between outer shroud frame and inner ring lip, and drives ambient air to accelerate to blow to user; In fan work process, focusing sheet due to by eccentric wheel extruding in certain angle of inclination, therefore air sheet of being focused when blowing out is gathered, is focused; When needs adjustment wind-force focus level, rotate regulating ring, described regulating ring rotates relative to outer shroud frame and inner ring lip; In rotation process, the sponge ring pad on regulating ring drives each described eccentric wheel to rotate by frictional force; Because eccentric edge each point is different to the distance of eccentric wheel axis, therefore when eccentric wheel rotates relative to sheet of focusing, the angle of inclination of focusing sheet will change thereupon; In addition, by magnetic force, described focusing sheet is adsorbed on eccentric edge all the time; In the process of therefore rotating with regulating ring at eccentric wheel, the angle of focusing sheet slowly changes; When reaching acceptable focus degree, the regulating ring that stops operating can make focusing sheet remain on this angle.

Structure of the present invention is simple, and most of components hide is at internal body, and regulating ring hides into fan frame simultaneously, does not obviously regulate button, does not affect of the present invention succinct, salubrious; In use, only regulating ring and focus-adjustable need be rotated, simple, convenient; By the degree of eccentric adjustment wheel extruding focusing sheet and then the aggregation extent of adjustment air-flow, while exceeding increase cost, effectively solve the focus issues of fan.

As preferably, at each described bar shaped pore place, rubber gasket is installed; Each described focusing sheet can rotate relative to bar shaped pore, and keeps the tightness without blade fan in focusing sheet rotation process.

As preferably, the one side smooth surface that each described focusing sheet contacts with eccentric wheel; So that reduce the frictional force between eccentric wheel and focusing sheet, each focusing sheet in focussing process is effectively prevented to be synchronized with the movement.

As preferably, the angle of described focusing sheet and horizontal wind direction is between 20 °-30 °; This angular range can meet normal regulatory demand, simultaneously without the need to taking turns to the west do excessive, and then reduces difficulty of processing.

As preferably, the distance that described eccentric wheel arrives outer shroud frame is greater than the distance that eccentric wheel arrives inner ring lip; So that reduce eccentric size, and then save cost and space hold, make whole product exquisiter.

Accompanying drawing explanation

Fig. 1 is the variable perspective view without a blade fan embodiment of this focusing.

Fig. 2 is the middle cross section enlarged diagram along A-A face embodiment illustrated in fig. 1.

Fig. 3 is the enlarged section at middle regulating ring place embodiment illustrated in fig. 1.

Embodiment

In embodiment shown in Fig. 1 to Fig. 3, this focusing is variable includes base, motor, cyclone accelerator and annular fan head without blade fan; Described base offers intake grill, and described motor and cyclone accelerator are arranged in base; Be provided with annular fan head at the exhaust outlet of described base, described annular fan head includes outer shroud frame 1 and inner ring lip 2; At the surface of described inner ring lip circumference all Strap pores, at each described bar shaped pore 21 place, rubber gasket is installed, so that strengthen tightness; Between described outer shroud frame 1 and inner ring lip 2, equidistantly focussing mechanism is installed; Only illustrate in Fig. 1 that 3 focussing mechanisms are to show explanation; Described focussing mechanism includes focusing sheet 3, regulating ring 4 and eccentric wheel 5; Described focusing sheet 3 is made by ferromagnetic substance, each described focusing sheet 3 runs through inner ring lip 2 by bar shaped pore 21, Placement between bar shaped pore 21 and focusing sheet 3 has various ways, as having shrinkage pool in the edge of bar shaped pore 21, the position of corresponding focusing sheet 3 is provided with hemispherical projections, this structure can realize focusing being rotationally connected of sheet 3 and bar shaped pore 21, because this structure is comparatively common, is not key protection point of the present invention and size is less, does not therefore describe in the drawings; Between described inner ring lip 2 and outer shroud frame 1, each bar shaped pore 21 place arranges the eccentric wheel 5 of an axis 6 perpendicular to inner ring lip 2 surface respectively; The distance that described eccentric wheel 5 arrives outer shroud frame 1 is greater than the distance that eccentric wheel 5 arrives inner ring lip 2; Each described eccentric wheel 5 is made by permanent-magnet material, and the focusing sheet 3 just right with it is close at the edge of each described eccentric wheel 5, the one side smooth surface that each described focusing sheet 3 contacts with eccentric wheel 5; There is aduncate annular groove 12 in the edge of described inner ring lip 2 and outer shroud frame 1, have with above-mentioned annular groove 12 to the ring buckle 41 mated in the edge of described regulating ring 4; Described regulating ring 4 is matched to slip ring by ring buckle 41 and annular groove 12 and is rotatably connected between inner ring lip 2 and outer shroud frame 1; An anchor ring secure attachment of pressing close to eccentric wheel 5 at described regulating ring 4 has sponge ring pad 42; Described sponge ring pad 42 compresses each described eccentric wheel 5.

In its natural state, each described focusing sheet 3 is extruded by eccentric wheel 5, tilts, the angle of described focusing sheet 3 and horizontal wind direction is between 20 °-30 °, this activity interval of focusing sheet 3 meets normal wind gathering demand, too much can not increase the size of eccentric wheel 5 simultaneously, not increase production, assembling difficulty; When the motor is activated, air is sent between outer shroud frame 1 and inner ring lip 2, flows out at a high speed eventually through the space between outer shroud frame 1 and inner ring lip 2, and drives ambient air to accelerate to blow to user; In fan work process, focusing sheet 3 is owing to being extruded in certain angle of inclination by eccentric wheel 5, and therefore air sheet 3 of being focused when blowing out is gathered, focused; When needs adjustment wind-force focus level, rotate regulating ring 4, described regulating ring 4 rotates relative to outer shroud frame 1 and inner ring lip 2; In rotation process, the sponge ring pad 42 on regulating ring 4 drives each described eccentric wheel 5 to rotate by frictional force, and elastic strain occurs described sponge ring pad 42, and sponge ring pad 42 remains and to contact with eccentric wheel 5; In addition, sponge ring pad increases regulating ring 4 and the tightness between outer shroud frame 1 and inner ring lip 2 further; Because the edge each point of eccentric wheel 5 is different to the distance at axis 6 (dotted line in Fig. 3 is eccentric wheel axis 6) place, therefore when eccentric wheel 5 rotates relative to focusing sheet 3, the angle of inclination of focusing sheet 3 will change thereupon; Eccentric wheel 5 is pressed close to inner ring lip 2 by the present invention especially, namely the distance that eccentric wheel 5 arrives outer shroud frame 1 is greater than the distance that eccentric wheel 5 arrives inner ring lip 2, the eccentric wheel 5 of this position is closer to the center of rotation of focusing sheet 3, therefore the size that eccentric wheel 5 need are less can make focusing sheet 3 rotate larger angle, because the size of eccentric wheel 5 is less, effective space of having saved between outer shroud frame 1 and inner ring lip 2, makes whole body seem slim, salubrious; In addition, due to magnetic force, described focusing sheet 3 is adsorbed on the edge of eccentric wheel 5 all the time; In the process of therefore rotating with regulating ring 4 at eccentric wheel 5, the angle of focusing sheet 3 slowly changes; When reaching acceptable focus degree, the regulating ring 4 that stops operating can make focusing sheet 3 remain on this angle.

Structure of the present invention is simple, and most of components hide is at internal body, and regulating ring 4 hides into fan frame simultaneously, does not obviously regulate button, does not affect of the present invention succinct, salubrious; In use, only regulating ring 4 i.e. focus-adjustable need be rotated, simple, convenient; By the degree of eccentric adjustment wheel 5 extruding focusing sheet 3 and then the aggregation extent of adjustment air-flow, while exceeding increase cost, effectively solve the focus issues of fan.

The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.

Claims

1. focus on variable without a blade fan, this focusing is variable mainly includes base, motor, cyclone accelerator and annular fan head without blade fan; Described base offers intake grill, and described motor and cyclone accelerator are arranged in base; Be provided with annular fan head at the exhaust outlet of described base, described annular fan head includes outer shroud frame (1) and inner ring lip (2); It is characterized in that: at described inner ring lip (2) surface circumference all Strap pores (21); Between described outer shroud frame (1) and inner ring lip (2), equidistantly focussing mechanism is installed; Described focussing mechanism includes focusing sheet (3), regulating ring (4) and eccentric wheel (5); Described focusing sheet (3) is made by ferromagnetic substance, and each described focusing sheet (3) runs through inner ring lip (2) surface by bar shaped pore (21); Between described inner ring lip (2) and outer shroud frame (1), each bar shaped pore (21) place arrange respectively an axis (6) perpendicular to inner ring lip (2) surface eccentric wheel (5); Each described eccentric wheel (5) is made by permanent-magnet material, and the focusing sheet (3) just right with it is close at the edge of each described eccentric wheel (5); There is aduncate annular groove (12) in the edge of described inner ring lip (2) and outer shroud frame (1), have the ring buckle (41) matched with above-mentioned annular groove (12) in the edge of described regulating ring (4); Described regulating ring (4) is rotatably connected between inner ring lip (2) and outer shroud frame (1) by the slip ring that ring buckle (41) and annular groove (12) are matched to; An anchor ring secure attachment of pressing close to eccentric wheel (5) at described regulating ring (4) has sponge ring pad (42); Described sponge ring pad (42) compresses each described eccentric wheel (5).

2. focusing according to claim 1 is variable without blade fan, it is characterized in that: be provided with rubber gasket at each described bar shaped pore (21) place.

3. focusing according to claim 1 and 2 is variable without blade fan, it is characterized in that: the one side smooth surface that each described focusing sheet (3) contacts with eccentric wheel (5).

4. focusing according to claim 3 is variable without blade fan, it is characterized in that: the angle of described focusing sheet (3) and horizontal wind direction is between 20 °-30 °.

5. focusing according to claim 4 is variable without blade fan, it is characterized in that: the distance that described eccentric wheel (5) arrives outer shroud frame (1) is greater than the distance that eccentric wheel (5) arrives inner ring lip (2).