Air duct structure of bladeless fan

Abstract

The utility model relates to an air duct structure of a bladeless fan, which comprises an air duct straight pipe connected with a bladeless fan base, the other end of the air duct straight pipe is communicated with an air duct bent pipe, one end of the air duct bent pipe is communicated with a shunt pipe, and the shunt pipe comprises a first pipe orifice, a second pipe orifice and a third pipe orifice. The first pipe orifice is rotationally connected to one end of the air duct elbow, the second pipe orifice is communicated with a left nozzle assembly, and the third pipe orifice is communicated with a right nozzle assembly; when the bladeless fan works, air flow can be blown out from the left nozzle assembly and the right nozzle assembly on the two sides, meanwhile, the flow dividing pipe can rotate by 360 degrees relative to the air duct bent pipe, and therefore the air blowing range of the left nozzle assembly and the air blowing range of the right nozzle assembly can be adjusted. According to the bladeless fan, the rotating angle positions of the left nozzle assembly and the right nozzle assembly can be adjusted according to requirements, the air outlet range of the bladeless fan is effectively enlarged, and the use requirements of users are met.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of air duct structures of bladeless fan. BACKGROUND

[0002] Bladeless fan is also called air doubling machine, it can produce natural and continuous cool wind, by forcing air to be discharged through the air outlet of air duct, thereby increasing the flow of air. Because it has the characteristics of safety, clean, beautiful, etc., therefore, it is favored by consumers. However, the blowing angle of bladeless fan on the market at present is mostly fixed, and the blowing range is limited, which cannot meet the use demand. SUMMARY

[0003] The utility model aims at at least in a certain extent solve one of the problems existing in prior art related, and for this purpose, the utility model provides a kind of air duct structures of bladeless fan.

[0004] To achieve the above object, the utility model provides the following technical scheme:

[0005] An air duct structure of bladeless fan, including the air duct straight pipe being connected and installed with the base of bladeless fan, another end of the air duct straight pipe is communicated with air duct elbow pipe, one end of the air duct elbow pipe is communicated with shunt pipe, the shunt pipe includes first pipe opening, second pipe opening and third pipe opening, the first pipe opening is rotatably connected to one end of air duct elbow pipe, the second pipe opening is communicated with left nozzle assembly, the third pipe opening is communicated with right nozzle assembly.

[0006] In some embodiments, shunt baffle is arranged between the second pipe opening and the third pipe opening, and the shunt baffle guides the airflow entering the first pipe opening to the second pipe opening and the third pipe opening respectively.

[0007] In some embodiments, a rotating shaft is arranged on the shunt baffle, the rotating shaft is coaxially arranged with the first pipe opening, and the other end is rotatably connected to the air duct elbow pipe.

[0008] In some embodiments, a fixed seat is fixed to the outside of the rear end of the air duct elbow pipe, a cylinder is arranged outside the fixed seat, one end of the rotating shaft passes through the air duct elbow pipe and the cylinder in sequence and is connected with a rotating disc, a circular ring piece is arranged between the fixed seat and the rotating disc, the circular ring piece is movably sleeved outside the cylinder, a plurality of springs are arranged between the fixed seat and the circular ring piece, a plurality of positioning protrusions are uniformly distributed in the circular ring piece on the side close to the rotating disc, and a plurality of positioning grooves matched with the positioning protrusions are arranged on the side of the rotating disc.

[0009] In some embodiments, a guide piece is arranged on the outer wall of the cylinder, and a guide slot is arranged on the inner wall of the circular ring piece, and the guide slot is slidably arranged on the guide piece.

[0010] In some embodiments, a plurality of spring fixing holes corresponding to the springs are arranged on the outer side of the fixing seat, a plurality of spring positioning protrusions corresponding to the springs are arranged on the inner side of the annular sheet, one end of the spring is arranged in the spring fixing hole, and the other end of the spring is sleeved on the spring positioning protrusion.

[0011] In some embodiments, the left nozzle assembly and the right nozzle assembly are both provided with an internal channel for receiving airflow and an air outlet for discharging airflow outward.

[0012] In some embodiments, a plurality of guide arc blades for guiding airflow to the air outlet are arranged in the internal channel of the left nozzle assembly and the right nozzle assembly at intervals along the length direction.

[0013] In some embodiments, when the guide arc blades are arranged at intervals from inside to outside in the internal channel, the intervals are sequentially increased.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows: through the arrangement of the air duct straight pipe, the air duct elbow pipe, the shunt pipe, the left nozzle assembly and the right nozzle assembly, when the bladeless fan is working, airflow can be blown out from the left nozzle assembly and the right nozzle assembly on both sides, at the same time, the shunt pipe can rotate 360° relative to the air duct elbow pipe, so that the blowing range of the left nozzle assembly and the right nozzle assembly can be adjusted, it can be seen that the bladeless fan of the design can adjust the rotation angle position of the left nozzle assembly and the right nozzle assembly according to requirements, effectively expands the air outlet range of the bladeless fan, and meets the use requirements of the user. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a perspective view of the bladeless fan of the utility model;

[0016] Figure 2 It is a top view of the utility model;

[0017] Figure 3 It is a perspective view of the utility model Figure 2 A-A section view schematic diagram;

[0018] Figure 4 It is a structure perspective view of the shunt pipe of the utility model;

[0019] Figure 5 It is a structure view of the shunt pipe and the air duct elbow pipe of the utility model;

[0020] Figure 6 It is an enlarged view of A of the utility model Figure 5 ;

[0021] Figure 7 It is a local exploded view of the utility model. DETAILED DESCRIPTION

[0022] The following detailed description provides various different embodiments or examples for implementing the present application. Of course, these are merely examples and are not intended to be limiting. Also, like reference numerals are used to designate corresponding parts throughout the different examples. These are used for a simple and clear description of the present application and do not represent a specific relationship between the different examples and / or structures discussed.

[0023] As shown in Figures 1-7 A wind channel structure of a bladeless fan, comprising a wind channel straight pipe 1 connected and installed with a bladeless fan base 10, another end of the wind channel straight pipe 1 is communicated with a wind channel elbow pipe 2, one end of the wind channel elbow pipe 2 is communicated with a shunt pipe 3, the shunt pipe 3 comprises a first pipe opening 4, a second pipe opening 5 and a third pipe opening 6, the first pipe opening 4 is rotatably connected to one end of the wind channel elbow pipe 2, the second pipe opening 5 is communicated with a left nozzle assembly 7, the third pipe opening 6 is communicated with a right nozzle assembly 8, of course, a fan motor assembly for generating airflow is arranged in the bladeless fan base 10, the airflow generated by the fan motor assembly is delivered upwards in the wind channel straight pipe 1.

[0024] The bladeless fan of the present application, through the arrangement of the wind channel straight pipe 1, the wind channel elbow pipe 2, the shunt pipe 3, the left nozzle assembly 7 and the right nozzle assembly 8, when the bladeless fan is working, the airflow can be blown out from the left nozzle assembly 7 and the right nozzle assembly 8 on both sides, at the same time, the shunt pipe 3 can rotate 360° relative to the wind channel elbow pipe 2, so as to adjust the blowing range of the left nozzle assembly 7 and the right nozzle assembly 8, it can be seen that the bladeless fan of the present design can adjust the rotation angle position of the left nozzle assembly 7 and the right nozzle assembly 8 according to the requirements, effectively expands the air outlet range of the bladeless fan, and meets the use requirements of the user.

[0025] Of course, the lower end of the wind channel straight pipe 1 can also be rotatably installed on the bladeless fan base 10, so that the whole machine can rotate in the vertical direction, thereby adjusting the blowing direction, further meeting the use requirements of the user.

[0026] As shown in Figures 3-5 The shunt partition plate 21 is arranged between the second pipe opening 5 and the third pipe opening 6, the airflow entering the first pipe opening 4 is respectively guided to the second pipe opening 5 and the third pipe opening 6, of course, the inner ends of the two sides of the shunt partition plate 21 are arc-shaped structures, which can facilitate the smooth flow of the airflow to the left nozzle assembly 7 and the right nozzle assembly 8.

[0027] The shunt pipe 3 is formed by two symmetrical shell covers, when installed, the two shell covers are combined and rotatably sleeved on one end of the wind channel elbow pipe 2, the structure is simple, and the installation is convenient and fast.

[0028] Referring to Figure 3 、 Figure 5 As shown in the drawings, the shunt baffle 21 is provided with a rotating shaft 31, which is coaxially arranged with the first pipe opening 4 and rotatably connected to the air duct elbow 2 at the other end. The rotating shaft 31 can improve the strength of the shunt pipe 3 after installation and the stability during rotation.

[0029] Referring to Figures 5-7 As shown in the drawings, the shunt baffle 21 is provided with a rotating shaft 31, which is coaxially arranged with the first pipe opening 4 and rotatably connected to the air duct elbow 2 at the other end. The rotating shaft 31 can improve the strength of the shunt pipe 3 after installation and the stability during rotation.

[0030] Further, the outer wall of the cylinder 42 is provided with a guide piece 51, and the inner wall of the circular ring piece 44 is provided with a guide notch 52, and the guide notch 52 is slidably arranged on the guide piece 51, so that the circular ring piece 44 can only move in the axial direction of the cylinder 42, for compressing the spring 45 and being kept against the side of the rotating disc 43 by the elastic force of the spring 45.

[0031] Further, the outer side of the fixed seat 41 is provided with a plurality of spring fixing holes 61 corresponding to the spring 45, and the inner side of the circular ring piece 44 is provided with a plurality of spring positioning protrusions 62 corresponding to the spring 45, one end of the spring 45 is arranged in the spring fixing hole 61, and the other end is sleeved on the spring positioning protrusion 62, so that the spring 45 can be stably fixed and installed, and the stability of the rotating disc 43 during rotation is improved.

[0032] In the utility model, the number of the positioning protrusions 46 and the positioning grooves 47 corresponds to four groups, that is, the left nozzle assembly 7 and the right nozzle assembly 8 can be kept in a horizontal transverse state for blowing or in a vertical state for blowing.

[0033] Of course, the transverse blowing or vertical blowing of the left nozzle assembly 7 and the right nozzle assembly 8 described above is a preferred scheme of the application, as long as the same or similar means can achieve the technical effect of the application, which shall fall within the protection scope of the application.

[0034] Referring to Figure 3 As shown, the left nozzle assembly 7 and the right nozzle assembly 8 are both provided with an internal passage 71 for receiving the airflow and an exhaust port 72 for discharging the airflow outward.

[0035] Further, a plurality of guide arc vanes 81 for guiding the airflow to the exhaust port 72 are arranged in the internal passage 71 of the left nozzle assembly 7 and the right nozzle assembly 8 at intervals along the length direction thereof, and the airflow enters the internal passage 71 of the left nozzle assembly 7 and the right nozzle assembly 8 from the flow divider 3, and then, by the arrangement of the guide arc vanes 81, the airflow can be blown out from the exhaust port 72 more evenly.

[0036] Further, when the guide arc vanes 81 are arranged at intervals from inside to outside in the internal passage 71, the intervals increase in turn, that is, the guide arc vanes 81 close to the flow divider 3 have smaller intervals, and the guide arc vanes 81 away from the flow divider 3 have larger intervals, so as to effectively expand the air outlet range of the bladeless fan.

[0037] With the above description and the accompanying drawings, the basic principles and main features of the present application and the advantages of the present application are shown and described, and those skilled in the art should understand that the present application is not limited by the above embodiments, and the above embodiments and the description in the specification are only to illustrate the principles of the present application, and various changes and improvements can be made to the present application 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 duct structure for a bladeless fan, characterized in that: The utility model provides a kind of air duct straight pipe (1) including with the connection installation of bladeless fan base (10), the other end of the air duct straight pipe (1) is communicated with air duct elbow pipe (2), the air duct elbow pipe (2) one end is communicated with shunt pipe (3), the shunt pipe (3) includes first pipe mouth (4), second pipe mouth (5) and third pipe mouth (6), the first pipe mouth (4) is rotatably connected in the one end of air duct elbow pipe (2), the second pipe mouth (5) is communicated with left nozzle assembly (7), the third pipe mouth (6) is communicated with right nozzle assembly (8).

2. The duct structure of the bladeless fan according to claim 1, wherein: The second pipe mouth (5) and third pipe mouth (6) are provided with a shunt baffle (21), the shunt baffle (21) guides the airflow entering the first pipe mouth (4) to the second pipe mouth (5) and the third pipe mouth (6) respectively.

3. The duct structure of the bladeless fan according to claim 2, wherein: A rotating shaft (31) is provided on the shunt baffle (21), the rotating shaft (31) is coaxially arranged with the first pipe mouth (4), and the other end is rotatably connected to the air duct elbow pipe (2).

4. The duct structure of the bladeless fan according to claim 3, wherein: A fixed seat (41) is fixed to the outside of the rear end of the air duct elbow pipe (2), a cylinder (42) is provided outside the fixed seat (41), one end of the rotating shaft (31) passes through the air duct elbow pipe (2) and the cylinder (42) in sequence and is connected with a rotating disc (43), a circular ring sheet (44) is provided between the fixed seat (41) and the rotating disc (43), the circular ring sheet (44) is movably sleeved outside the cylinder (42), a plurality of springs (45) are provided between the fixed seat (41) and the circular ring sheet (44), a plurality of positioning protrusions (46) are uniformly arranged along the circumference on one side of the circular ring sheet (44) close to the rotating disc (43), a plurality of positioning grooves (47) matched with the positioning protrusions (46) are provided on one side of the rotating disc (43).

5. The duct structure of a bladeless fan according to claim 4, wherein: A guide sheet (51) is provided on the outer wall of the cylinder (42), and a guide notch (52) is provided on the inner wall of the circular ring sheet (44), the guide notch (52) is slidably arranged on the guide sheet (51).

6. The duct structure of the bladeless fan according to claim 4, wherein: A plurality of spring fixing holes (61) corresponding to the springs (45) are provided on the outside of the fixed seat (41), and a plurality of spring positioning protrusions (62) corresponding to the springs (45) are provided on the inside of the circular ring sheet (44), one end of the spring (45) is arranged in the spring fixing hole (61), and the other end is sleeved on the spring positioning protrusion (62).

7. The duct structure of the bladeless fan according to claim 1, wherein: The left nozzle assembly (7) and the right nozzle assembly (8) are each provided with an internal passage (71) for receiving airflow and an exhaust port (72) for discharging airflow outward.

8. The duct structure of a bladeless fan according to claim 7, wherein: A plurality of guide arc vanes (81) for guiding airflow to the exhaust port (72) are arranged at intervals along the length direction in the internal passage (71) of the left nozzle assembly (7) and the right nozzle assembly (8).

9. The duct structure of a bladeless fan according to claim 8, wherein: When the guide arc vanes (81) are arranged at intervals from inside to outside in the internal passage (71), the intervals increase in sequence.

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