Fan cover structure

Abstract

The fan cover structure comprises a front cover body and a rear cover body which are connected with each other, the front cover body is provided with a concave-convex structure, the concave-convex structure comprises a first concave part, a convex part and a second concave part which are sequentially arranged from inside to outside, and the convex part protrudes out of the outer side of the front cover body. According to the fan cover structure, the concave-convex structure is arranged on the front cover body, the concave-convex structure comprises the first concave part, the convex part and the second concave part which are sequentially arranged from inside to outside, airflow sent out by rotation of fan blades is sent out in a concentrated mode through the convex part, airflow dispersion is small, wind power can be improved, and therefore the rotating speed of the fan blades does not need to be increased to improve the wind power; the protruding part is located between the center and the edge of the front cover body, and the spiral air guide blade plate is additionally arranged, so that the coverage range of air flow sent out from the protruding part is larger, it is guaranteed that the fan can blow air to multiple positions, and the user experience is improved; in addition, the structural strength of the front cover body of the concave-convex structure can be greatly improved, and the front cover body does not deform basically after the fan is used for a long time.

Description

TECHNICAL FIELD

[0001] The utility model relates to fan technical field, especially a fan cover structure. BACKGROUND

[0002] A fan cover and a fan are disclosed in Chinese patent document No. CN106351885B published on April 2, 2019, wherein the fan cover comprises a front cover net and a rear cover net, the front cover net and the rear cover net are connected to form a containing space, the edge of the rear cover net is circumferentially formed into a hoop, one of the edge of the front cover net and the hoop is provided with a plurality of buckles, and the other is provided with a plurality of buckle positions; or the edge of the front cover net is circumferentially formed into a hoop, one of the edge of the rear cover net and the hoop is provided with a plurality of buckles, and the other is provided with a plurality of buckle positions; each buckle is buckled in the corresponding buckle position. The front cover net of the fan cover is flush structure, the airflow sent out by the fan blades rotating out of the front cover net will be relatively dispersed, resulting in small wind power and poor performance. Only the rotation speed of the fan blades can be increased to improve the wind power, but the noise will be relatively large. In addition, the front cover net with flush structure has poor strength, and the front cover net is easy to deform after long-time use of the fan.

[0003] Therefore, it is necessary to make further improvement. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at providing a fan cover structure which has simple structure, large wind power, small noise, high strength, good user experience and strong practicability, so as to overcome the defects of the prior art.

[0005] A fan cover structure designed for this purpose comprises a front cover body and a rear cover body connected to each other, characterized in that a concave-convex structure is arranged on the front cover body, the concave-convex structure comprises a first recess, a convex part and a second recess arranged in sequence from inside to outside, and the convex part protrudes outward from the front cover body.

[0006] The first recess is arranged at the center of the front cover body, the convex part is arranged close to the outer edge of the front cover body, and the second recess is located at the outer edge of the front cover body.

[0007] The first recess and the convex part are connected through a first transition part, the convex part and the second recess are connected through a second transition part, and the first transition part and the second transition part are arc-shaped.

[0008] A plurality of air guide leaf plates are annularly arranged on the front cover body, the air guide leaf plates are spiral-shaped, and the air guide leaf plates span the first recess and the convex part.

[0009] A connecting plate is arranged at the center of the first recess, an installation ring is arranged at the outer edge of the second recess, one end of the air guide leaf plate is connected to the connecting plate, and the other end is connected to the installation ring.

[0010] The connecting ring is arranged between the front cover body and the rear cover body, the connecting ring is annularly provided with a plurality of buckles, the mounting ring is annularly provided with a plurality of buckle holes, the buckle and the buckle hole are buckled with each other, the connecting ring is annularly provided with a plurality of fixed column holes, the mounting ring is annularly provided with a plurality of fixed holes, and a fastener is fastened and connected with the fixed column hole after passing through the fixed hole, so that the front cover body and the connecting ring are connected.

[0011] Or, the connecting ring is arranged between the front cover body and the rear cover body, and the front cover body and the connecting ring are integrally formed.

[0012] The connecting ring is annularly provided with a plurality of positioning columns, the mounting ring is annularly provided with a plurality of positioning holes, and the positioning column is positioned and matched with the positioning hole.

[0013] The connecting ring is rotationally provided with a rotating buckle, the rotating buckle is provided with a buckle position, the opening of the rear cover body is provided with a clamping strip, the buckle position is buckled with the clamping strip when the rotating buckle is rotated to a first position, so that the rear cover body and the connecting ring are connected, the buckle position is separated from the clamping strip when the rotating buckle is rotated to a second position, so that the rear cover body and the connecting ring are disassembled, and the rotating buckle is provided with an acting part for rotating the rotating buckle.

[0014] The connecting ring is annularly provided with a plurality of positioning notches, and the clamping strip is clamped on the positioning notch.

[0015] The fan cover structure of the utility model is provided with the concave-convex structure on the front cover body, the concave-convex structure includes first recess, convex part and second recess which are sequentially arranged from inside to outside, the airflow sent out by the fan blade is concentrated and sent out through the convex part, the airflow is less dispersed, the wind power can be improved, so that the fan speed is not needed to be increased to improve the wind power, the fan noise is reduced, the convex part is located between the center and the edge of the front cover body, the spiral air guide leaf plate is added, the airflow sent out from the convex part covers a larger range, the fan can blow to multiple positions, and the user experience is improved; in addition, the front cover body of the concave-convex structure can greatly improve the structural strength, and the front cover body basically will not be deformed after the fan is used for a long time. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the whole structure schematic diagram of the fan cover in an embodiment of the utility model.

[0017] Figure 2 It is the sectional view of the fan cover in an embodiment of the utility model.

[0018] Figure 3 It is the whole structure schematic diagram of the front cover body in an embodiment of the utility model.

[0019] Figure 4 It is the whole structure schematic diagram of the connecting ring in an embodiment of the utility model.

[0020] Figure 5The partial assembly view of the rear cover body and the connecting ring when the rotating buckle rotates to the first position in one embodiment of the utility model.

[0021] Figure 6 The assembly structure schematic view of the rear cover body and the connecting ring in one embodiment of the utility model.

[0022] Figure 7 The partial assembly view of the rear cover body and the connecting ring when the rotating buckle rotates to the second position in one embodiment of the utility model.

[0023] Figure 8 The partial assembly view of the rear cover body and the connecting ring when the rotating buckle rotates to the second position in one embodiment of the utility model.

[0024] Figure 9 The partial exploded view of the connecting ring and the buckle in one embodiment of the utility model. Specific implementation

[0025] The utility model will be further described in connection with the drawings and embodiments.

[0026] Reference Figures 1-9 , the fan cover structure, including mutually connected front cover body 1 and rear cover body 2, and the front cover body 1 and rear cover body 2 are net cover, and the front cover body 1 is provided with concave-convex structure, and the concave-convex structure includes first recess 3, convex part 4 and second recess 5 arranged in sequence from inside to outside, and the convex part 4 protrudes from the outside of the front cover body 1, so that the airflow sent by the fan blade rotation is concentrated and sent through the convex part 4.

[0027] The first recess 3 is arranged at the center of the front cover body 1, the convex part 4 is arranged close to the outer edge of the front cover body 1, further increases the airflow coverage range, and the second recess 5 is located at the outer edge of the front cover body 1, so that the structure of the front cover body 1 is more stable, and deformation of the front cover body 1 is prevented.

[0028] The first recess 3 and the convex part 4 are connected through the first transition part 6, the convex part 4 and the second recess 5 are connected through the second transition part 7, the first transition part 6 and the second transition part 7 are arc-shaped, and the airflow sent by the fan blade rotation can be concentrated and flowed to the convex part 4 through the first transition part 6 or the second transition part 7.

[0029] A plurality of air guide leaf plates 8 are annularly arranged on the front cover body 1, the air guide leaf plate 8 is spiral-shaped, the air guide leaf plate 8 spans the first recess 3 and the convex part 4, and the spiral-shaped air guide leaf plate 8 can reduce the dispersion of airflow, so that the blown airflow is more concentrated.

[0030] The first recess 3 is provided with a connecting plate 9 at the center, the second recess 5 is provided with a mounting ring 10 at the outer edge, one end of the air guide leaf plate 8 is connected with the connecting plate 9, and the other end is connected with the mounting ring 10.

[0031] The connecting ring 11 is arranged between the front cover body 1 and the rear cover body 2; a plurality of buckles 12 are arranged in a ring shape on the periphery of the connecting ring 11, a plurality of buckle holes 13 are arranged in a ring shape on the periphery of the mounting ring 10, and the buckles 12 and the buckle holes 13 are buckled with each other; a plurality of fixed column holes 14 are arranged in a ring shape on the periphery of the connecting ring 11, a plurality of fixed holes 15 are arranged in a ring shape on the periphery of the mounting ring 10, and a fastener is fastened and connected with the fixed column holes 14 after passing through the fixed holes 15, so as to connect the front cover body 1 and the connecting ring 11; the mounting ring 10 is more stably mounted on the front cover body 1 through the buckles and the fastener.

[0032] Alternatively, the connecting ring 11 is arranged between the front cover body 1 and the rear cover body 2, and the front cover body 1 and the connecting ring 11 are integrally formed, which has the advantages of reducing production difficulty and production cost.

[0033] A plurality of positioning columns 16 are arranged in a ring shape on the periphery of the connecting ring 11, a plurality of positioning holes 17 are arranged in a ring shape on the periphery of the mounting ring 10, and the positioning columns 16 and the positioning holes 17 are positioned and matched, so as to prevent loosening between the front cover body 1 and the connecting ring 11, and facilitate the alignment of the fixed holes 15 and the fixed column holes 14 during installation.

[0034] A rotating buckle 18 is rotatably arranged on the connecting ring 11, the rotating buckle 18 is provided with a buckle position 21, a clamping strip 19 is arranged on the opening of the rear cover body 2, the buckle position 21 and the clamping strip 19 are buckled with each other when the rotating buckle 18 is rotated to a first position A, so as to connect the rear cover body 2 and the connecting ring 11, the buckle position 21 is separated from the clamping strip 19 when the rotating buckle 18 is rotated to a second position B, so as to realize the disassembly of the rear cover body 2 and the connecting ring 11; the rotating buckle 18 is provided with an acting part 22 for rotating the rotating buckle 18.

[0035] The rotating buckle 18 is provided with a rotating shaft 23 at both ends, the connecting ring 11 is provided with a mounting position 24, both ends of the mounting position 24 are provided with rotating holes 25, and the rotating buckle 18 is rotatably arranged on the mounting position 24 through the cooperation of the rotating shaft 23 and the rotating holes 25; the rotating buckle 18 is provided with a lock buckle 26, the mounting position 24 is provided with a lock block 27, the lock buckle 26 and the lock block 27 are locked with each other when the rotating buckle 18 is rotated to the first position A, so as to prevent the rotating buckle 18 from loosening and causing the buckle position 21 to separate from the clamping strip 19, the lock buckle 26 is an elastic buckle, and the lock buckle 26 can be separated from the lock block 27 only by rotating the rotating buckle 18 with force through the acting part 22 when the rear cover body 2 and the connecting ring 11 are disassembled.

[0036] A plurality of positioning notches 22 are arranged in a ring shape on the connecting ring 11, and the clamping strip 19 is clamped on the positioning notches 22, so as to position the clamping strip 19 and prevent loosening between the rear cover body 2 and the connecting ring 11; the front cover body 1 and the rear cover body 2 are connected through the connecting ring 11.

[0037] The above is the preferred scheme of the utility model, and the basic principle, main features and advantages of the utility model are displayed and described. Those skilled in the art should understand that the utility model is not limited to the above-mentioned embodiments, and the above-mentioned embodiments and the description in the specification are only for illustrating the principle of the utility model. The utility model can have various changes and improvements without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed. The protection scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A fan cover structure comprising a front cover body (1) and a rear cover body (2) connected to each other, characterized in that: The front cover body (1) is provided with a concave-convex structure, which comprises a first recess (3), a convex part (4) and a second recess (5) arranged in sequence from inside to outside.

2. The fan cover structure of claim 1, wherein: The first recess (3) is arranged at the center of the front cover body (1), the convex part (4) is arranged close to the outer edge of the front cover body (1), and the second recess (5) is located at the outer edge of the front cover body (1).

3. The fan cover structure of claim 2, wherein: The first recess (3) and the convex part (4) are connected through a first transition part (6), the convex part (4) and the second recess (5) are connected through a second transition part (7), and the first transition part (6) and the second transition part (7) are arc-shaped.

4. The fan cover structure of claim 2, wherein: A plurality of air guide leaf plates (8) are arranged in a ring shape on the front cover body (1), the air guide leaf plates (8) are spiral-shaped, and the air guide leaf plates (8) span the first recess (3) and the convex part (4).

5. The fan cover structure of claim 4, wherein: A connecting plate (9) is arranged at the center of the first recess (3), and a mounting ring (10) is arranged at the outer edge of the second recess (5); one end of the air guide leaf plate (8) is connected to the connecting plate (9), and the other end is connected to the mounting ring (10).

6. The fan cover structure of claim 5, wherein: Further comprising a connecting ring (11) arranged between the front cover body (1) and the rear cover body (2); a plurality of buckles (12) are arranged in a ring shape on the connecting ring (11), a plurality of buckle holes (13) are arranged in a ring shape on the mounting ring (10), the buckles (12) and the buckle holes (13) are buckled with each other; a plurality of fixed column holes (14) are arranged in a ring shape on the connecting ring (11), a plurality of fixed holes (15) are arranged in a ring shape on the mounting ring (10), and a fastener passes through the fixed hole (15) and is fastened and connected with the fixed column hole (14) to connect the front cover body (1) and the connecting ring (11).

7. The fan cover structure of claim 5, wherein: Further comprising a connecting ring (11) arranged between the front cover body (1) and the rear cover body (2), and the front cover body (1) and the connecting ring (11) are integrally formed.

8. The fan cover structure of claim 5, wherein: A plurality of positioning columns (16) are arranged in a ring shape on the connecting ring (11), a plurality of positioning holes (17) are arranged in a ring shape on the mounting ring (10), and the positioning columns (16) and the positioning holes (17) are positioned and matched.

9. The fan cover structure of claim 5, wherein: A rotating buckle (18) is rotatably arranged on the connecting ring (11), the rotating buckle (18) is provided with a buckle position (21), an opening of the rear cover body (2) is provided with a clamping strip (19), when the rotating buckle (18) is rotated to a first position (A), the buckle position (21) and the clamping strip (19) are buckled with each other to connect the rear cover body (2) and the connecting ring (11), when the rotating buckle (18) is rotated to a second position (B), the buckle position (21) is separated from the clamping strip (19) to realize disassembly of the rear cover body (2) and the connecting ring (11); the rotating buckle (18) is provided with an acting part (22) for rotating the rotating buckle (18).

10. The fan cover structure of claim 9, wherein: A plurality of positioning notches (22) are arranged in a ring shape on the connecting ring (11), and the clamping strip (19) is clamped on the positioning notches (22).

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