A bladeless fan that maintains a blow angle perpendicular

Abstract

The application discloses a bladeless fan capable of keeping blowing angle vertical, which comprises a bladeless fan body, air outlets arranged on both sides of the bladeless fan body, elongated ventilation pipes connected to the air outlets and extending forward, arc-shaped movable ventilation pipes connected to the elongated ventilation pipes, an adjusting blowing frame arranged between the arc-shaped movable ventilation pipes, vertical keeping mechanisms arranged on the arc-shaped movable ventilation pipes and used for keeping the adjusting blowing frame moving vertically along the arc line path of the arc-shaped movable ventilation pipes, blowing arms on both sides capable of rotating around objects in front and adjusting angles, blowing directions always towards the objects, keeping vertical blowing, height adjustment of the blowing arms being realized according to angle adjustment during angle adjustment, preventing the situation that most blowing areas of the blowing arms are towards the ground after the angle adjustment, better stable adjustment being realized through the vertical keeping mechanisms, moment being reduced and stability being kept.

Description

TECHNICAL FIELD

[0001] The present application relates to a bladeless fan, in particular to a bladeless fan capable of keeping the blowing angle vertical. BACKGROUND

[0002] The bladeless fan is provided with blowing fan blades, and blows air from the upper side through a wind guide structure. The conventional bladeless fan cannot adjust the blowing angle, which reduces the application range. If a swinging structure is provided on the basis of the conventional bladeless fan to adjust the blowing angle, the following problems will occur. When the swinging arm swings around the rotating shaft, the swinging arm is long, and when the swinging arm rotates, the swinging arm is close to the ground, which reduces the blowing area and cannot well aim at the object to be blown. In addition, the torque generated when the long swinging arm adjusts the angle is large due to the long distance from the rotating shaft, which easily causes wear of the rotating shaft and reduces the service life.

[0003] Therefore, the existing bladeless fan needs to be further improved. SUMMARY

[0004] The purpose of the present application is to provide a bladeless fan capable of keeping the blowing angle vertical, which can rotate the blowing structure around the blowing object and adjust the blowing angle. When the angle is adjusted, the blowing surface is always aimed at the middle blowing object, and the blowing arm stability is better.

[0005] In order to achieve the above purpose, the present application adopts the following scheme:

[0006] A bladeless fan capable of keeping the blowing angle vertical comprises a bladeless fan body, both sides of the bladeless fan body are provided with air outlets, two air outlets are connected with elongated ventilation pipes extending forward, the elongated ventilation pipes are connected with arc-shaped movable ventilation pipes, an adjusting blowing frame is arranged between two arc-shaped movable ventilation pipes, and a vertical keeping mechanism for keeping the adjusting blowing frame vertically moving along the arc line path of the arc-shaped movable ventilation pipe is arranged on the arc-shaped movable ventilation pipe.

[0007] Further, the bladeless fan body comprises a base, a fan shell is arranged on the base, an air inlet is arranged above the fan shell, a blowing fan blade assembly capable of sending air flow to both sides of the air outlet is arranged in the fan shell.

[0008] Further, the fan shell is provided with ventilation filter screen holes on the front and rear walls.

[0009] Further, the arc-shaped movable ventilation pipe comprises a connecting port arranged at the outer end of the elongated ventilation pipe, an arc-shaped air guide groove is arranged at the connecting port, an arc-shaped adjusting block is movably arranged in the arc-shaped air guide groove, an air inlet opening is arranged at the side of the arc-shaped adjusting block close to the connecting port, and a folding air baffle is arranged between the arc-shaped adjusting block and the connecting port.

[0010] Further, the adjusting air blowing frame comprises vertical air blowing arms arranged on the arc-shaped adjusting block, a connecting cross bar is arranged between the two vertical air blowing arms, and a plurality of air outlet openings in communication with the arc-shaped air guide groove are arranged on the front wall surface of the vertical air blowing arms.

[0011] Further, the vertical retaining mechanism comprises an arc-shaped rod arranged on the arc-shaped air guide groove, an arc-shaped slot is arranged on the arc-shaped rod, an axle body seat is arranged on the arc-shaped adjusting block, two adjusting axle bodies are arranged on the axle body seat in a spaced manner, and the two adjusting axle bodies are movably arranged in the arc-shaped slot.

[0012] Further, the adjusting axle body and the arc-shaped slot are in interference fit.

[0013] Further, the air blowing fan blade assembly comprises a bottom shell, a plurality of through holes are arranged on the bottom shell, a driving motor is arranged in the bottom shell, an upper shell is arranged on the bottom shell, an air inlet end is arranged on the upper shell, a first conical blade and a second conical blade are arranged at the output end of the driving motor, and a plurality of air guide inner blades are arranged between the first conical blade and the second conical blade.

[0014] Further, the adjusting air blowing frame and the arc-shaped movable ventilation pipe are provided with an elastic plug type positioning structure for positioning the adjusting air blowing frame.

[0015] Further, the elastic plug type positioning structure comprises an elastic transverse plug assembly arranged on the vertical air blowing arm, a plurality of positioning holes are uniformly distributed along the arc line path of the arc-shaped air guide groove on the side wall of the arc-shaped air guide groove, and the elastic transverse plug assembly can be clamped in one of the positioning holes to fix the inclination angle of the adjusting air blowing frame.

[0016] In summary, the present application has the following beneficial effects over the prior art:

[0017] The present application solves the deficiencies existing in the prior art bladeless fan, and has the following advantages: the blowing arms on both sides can rotate around the object in front and adjust the angle, the blowing direction is always towards the object, vertical blowing is maintained, the height of the blowing arm is adjusted according to the angle adjustment during the angle adjustment, the situation that most of the blowing area of the blowing arm is towards the ground after the angle adjustment is prevented, the vertical maintaining mechanism can better stably adjust, the moment is reduced, the stability is maintained, and the structure is simple and convenient to use. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0019] Figure 1 is a perspective view of the present application;

[0020] Figure 2 is a front view of the present application;

[0021] Figure 3 is one of the internal structure schematic views of the present application;

[0022] Figure 4 is an exploded view of the present application;

[0023] Figure 5 is the second internal structure schematic view of the present application;

[0024] Figure 6 is the first state schematic view of the present application;

[0025] Figure 7 is the second state schematic view of the present application;

[0026] Figure 8 is the third state schematic view of the present application;

[0027] Figure 9 is the third internal structure schematic view of the present application.

DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings of the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0029] Please refer to Figures 1-9 The application provides a bladeless fan with a blowing angle kept vertical, comprising a bladeless fan body 1, both sides of which are provided with air outlets 2, two of which are connected with elongated air ducts 3 extending forward, the elongated air ducts 3 are connected with arc-shaped movable air ducts 4, between which is arranged an adjusting blowing frame 5, the arc-shaped movable air ducts 4 are provided with vertical keeping mechanisms 6 for keeping the adjusting blowing frame 5 vertically moving along the arc-shaped path of the arc-shaped movable air ducts 4.

[0030] The bladeless fan body 1 can blow air out from the air outlets 2 on both sides;

[0031] The air outlets 2 are connected with the elongated air ducts 3, which can guide the air flow to one side and send it to the arc-shaped movable air ducts 4 on one side;

[0032] The arc-shaped movable air ducts 4 can adjust the position of the blowing outlet along an arc-shaped path;

[0033] The air outlet position of the arc-shaped movable air ducts 4 is always kept in communication with the adjusting blowing frame 5 when adjusted;

[0034] The adjusting blowing frame 5 and the air outlet position of the arc-shaped movable air ducts 4 are adjusted along an arc-shaped path;

[0035] The adjusting blowing frame 5 is controlled by the vertical keeping mechanisms 6, so that the adjusting blowing frame 5 always blows air towards the front stream, keeping a vertical blowing state;

[0036] The bladeless fan body 1 comprises a base 101, the base 101 is provided with a fan shell 102, the fan shell 102 is provided with an air inlet 103 above, the fan shell 102 is provided with a blowing fan blade assembly 105 capable of sending air flow to the air outlets 2 on both sides.

[0037] The fan shell 102 is provided with air filter holes 100 on the front and rear walls.

[0038] The arc-shaped movable air duct 4 comprises a connecting port 401 arranged at the outer end of the elongated air duct 3, the connecting port 401 is provided with an arc-shaped air guide groove 402, the arc-shaped air guide groove 402 is movably provided with an arc-shaped adjusting block 403, the arc-shaped adjusting block 403 is provided with an air inlet opening 404 close to one side of the connecting port 401, and a folding air baffle 405 is arranged between the arc-shaped adjusting block 403 and the connecting port 401.

[0039] The arc-shaped adjusting block 403 can adjust the arc-shaped position in the arc-shaped air guide groove 402, the position between the arc-shaped adjusting block 403 and the connecting port 401 is an adjustable telescopic air guide structure, and the sealing state between the arc-shaped adjusting block 403 and the connecting port 401 is maintained by the folding air baffle 405, that is, the sealing state can be maintained and the folding activity can be realized.

[0040] The adjusting air blowing frame 5 comprises vertical air blowing arms 501 arranged on the arc-shaped adjusting block 403, a connecting cross bar 502 arranged between the two vertical air blowing arms 501, and a plurality of air outlets 503 arranged on the front wall surface of the vertical air blowing arm 501 and communicated with the arc-shaped air guide groove 402.

[0041] The vertical retaining mechanism 6 comprises an arc-shaped rod 601 arranged on the arc-shaped air guide groove 402, an arc-shaped slot 602 arranged on the arc-shaped rod 601, an axle body seat 603 arranged on the arc-shaped adjusting block 403, and two adjusting axle bodies 604 arranged on the axle body seat 603 and movably installed in the arc-shaped slot 602.

[0042] The two adjusting axle bodies 604 and the arc-shaped slot 602 are matched to control the angle of the vertical air blowing arm 501, and during the adjusting process, the vertical air blowing arm 501 is kept in the vertical state with the object and the height position angle is adjusted.

[0043] The adjusting axle body 604 and the arc-shaped slot 602 are in interference fit.

[0044] The air blowing fan blade assembly 105 comprises a bottom shell 1051, a plurality of through holes 1052 arranged on the bottom shell 1051, a driving motor 1053 arranged in the bottom shell 1051, an upper shell 1054 arranged on the bottom shell 1051, an air inlet end 1055 arranged on the upper shell 1054, a first conical blade 1056 and a second conical blade 1057 arranged on the output end of the driving motor 1053, and a plurality of air guide inner blades 1058 arranged between the first conical blade 1056 and the second conical blade 1057.

[0045] The adjusting air blowing frame 5 and the arc-shaped movable ventilation pipe 4 are provided with an elastic plug type positioning structure 7 for positioning the adjusting air blowing frame 5.

[0046] The elastic latch type positioning structure 7 comprises an elastic transverse latch assembly 701 arranged on the vertical blowing arm 501, the side wall of the arc-shaped air guide groove 402 is uniformly provided with a plurality of positioning holes 702 along the arc line path of the arc-shaped air guide groove 402, and the elastic transverse latch assembly 701 can be clamped in one of the positioning holes 702 to fix the inclination angle of the adjusting blowing frame 5.

[0047] The elastic transverse latch assembly 701 moves along with the movement of the adjusting blowing frame 5, is inserted into one of the positioning holes 702 in alignment with the elastic transverse latch assembly 701, and the angle of the adjusting blowing frame 5 is fixed.

[0048] When unlocked, the elastic transverse latch assemblies 701 on both sides are opened, at this time, the elastic transverse latch assemblies 701 are separated from the positioning holes 702 to complete the separation and unlocking.

[0049] The basic principles and main features of the present application and the advantages of the present application are shown and described above, and those skilled in the art should understand that the present application is not limited to the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only to illustrate the principles of the present application, and various changes and improvements can be made without departing from the spirit and scope of the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A bladeless fan that maintains a vertical blowing angle, comprising a bladeless fan body (1), wherein air outlets (2) are provided on both sides of the bladeless fan body (1), characterized in that: Two air outlets (2) are connected to an extended ventilation pipe (3) that extends forward. An arc-shaped movable ventilation pipe (4) is connected to the extended ventilation pipe (3). An adjustable blower (5) is provided between the two arc-shaped movable ventilation pipes (4). A vertical holding mechanism (6) is provided on the arc-shaped movable ventilation pipe (4) to keep the adjustable blower (5) moving vertically along the arc path of the arc-shaped movable ventilation pipe (4).

2. A bladeless fan that maintains a vertical blowing angle according to claim 1, characterized in that: The bladeless fan body (1) includes a base (101), a fan housing (102) is provided on the base (101), an air inlet (103) is provided above the fan housing (102), and a fan blade assembly (105) is provided inside the fan housing (102) to deliver airflow to the air outlets (2) on both sides.

3. A bladeless fan that maintains a vertical blowing angle according to claim 2, characterized in that: The front and rear walls of the fan housing (102) are each provided with ventilation filter holes (100).

4. A bladeless fan that maintains a vertical blowing angle according to claim 3, characterized in that: The arc-shaped movable ventilation pipe (4) includes a connection port (401) located at the outer end of the extended ventilation pipe (3). An arc-shaped air guide groove (402) is provided at the connection port (401). An arc-shaped adjusting block (403) is movably arranged in the arc-shaped air guide groove (402). An air inlet opening (404) is provided on the side of the arc-shaped adjusting block (403) near the connection port (401). A folding wind baffle (405) is provided between the arc-shaped adjusting block (403) and the connection port (401).

5. A bladeless fan that maintains a vertical blowing angle according to claim 4, characterized in that: The adjustable blower frame (5) includes a vertical blower arm (501) disposed on the arc-shaped adjusting block (403), a connecting crossbar (502) is disposed between the two vertical blower arms (501), and a plurality of exhaust ports (503) communicating with the arc-shaped air guide groove (402) are disposed on the front wall of the vertical blower arm (501).

6. A bladeless fan that maintains a vertical blowing angle according to claim 4, characterized in that: The vertical holding mechanism (6) includes an arc-shaped rod (601) disposed on the arc-shaped air guide groove (402), an arc-shaped groove (602) disposed on the arc-shaped rod (601), a shaft seat (603) disposed on the arc-shaped adjusting block (403), and two adjusting shafts (604) disposed at intervals on the shaft seat (603), the two adjusting shafts (604) being installed and movable within the arc-shaped groove (602).

7. A bladeless fan that maintains a vertical blowing angle according to claim 6, characterized in that: The adjusting shaft (604) and the arc-shaped groove (602) are interference-fitted.

8. A bladeless fan that maintains a vertical blowing angle according to claim 7, characterized in that: The blower fan blade assembly (105) includes a bottom shell (1051), a plurality of through holes (1052) are provided on the bottom shell (1051), an active motor (1053) is provided inside the bottom shell (1051), an upper shell (1054) is provided on the bottom shell (1051), an air inlet (1055) is provided on the upper shell (1054), a first conical blade (1056) and a second conical blade (1057) are provided at the output end of the active motor (1053), and a plurality of inner air guide blades (1058) are provided between the first conical blade (1056) and the second conical blade (1057).

9. A bladeless fan that maintains a vertical blowing angle according to claim 5, characterized in that: An elastic pin-type positioning structure (7) for positioning the adjustable blower (5) is provided between the adjustable blower (5) and the arc-shaped movable ventilation pipe (4).

10. A bladeless fan that maintains a vertical blowing angle according to claim 9, characterized in that: The elastic pin-type positioning structure (7) includes an elastic horizontal pin assembly (701) disposed on the vertical blower arm (501). The side wall of the arc-shaped air guide groove (402) is evenly distributed with multiple positioning holes (702) along the arc path of the arc-shaped air guide groove (402). The elastic horizontal pin assembly (701) can be locked in one of the positioning holes (702) to fix the tilt angle of the adjustable blower frame (5).

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