Dust cover for fan blade and paper blank for folding dust cover

Abstract

The utility model relates to the technical field of fans, in particular to a dust cover for fan blades and a paper blank for folding the dust cover, the dust cover comprises a barrel-shaped main body, the dust cover is sleeved outside the fan blades from outside to inside along the length direction of the fan blades when in use, each fan blade uses an independent dust cover, and the dust cover is folded by the paper blank. The main body comprises a lower cover plate on the lower side and an upper cover plate on the upper side, the lower cover plate and the upper cover plate are connected through a first connecting part and a second connecting part, the fan cover is low in cost and convenient to use, the fan cover is selected according to the number, the shape and the size of fan blades during use, then the fan cover is directly sleeved on the fan blades and then fixed, and after the fan cover is sleeved on the fan blades, the fan blades can be fixed. And when the fan needs to be used, the dustproof cover is taken down, so that the fan is very convenient, attractive and elegant, and is suitable for fan blades of various specifications.

Description

Technical Field

[0001] The utility model relates to the technical field of fans, in particular to a dust cover for fan blades and a paper blank for folding the dust cover. Background Art

[0002] An electric fan is a household appliance that uses an electric motor to drive the blades to rotate, thereby accelerating air circulation. It is mainly used to cool down and circulate air, and is widely used in homes, classrooms, offices, shops, hospitals, hotels and other places. Among them, ceiling fans are fixed on the ceiling. When the summer is over and the temperature drops, the ceiling fan is no longer needed. However, if the ceiling fan is not used for a long time, dust accumulates on the blades. When it is used in the next summer, the dust needs to be cleaned. Not only is it troublesome to clean the ceiling fan due to its high height, but the dust is also difficult to clean due to long-term dust accumulation.

[0003] To solve the above problems, the utility model patent with patent number CN91220209.2 discloses a ceiling fan dust cover, which consists of a blade cover, a round cover and a zipper. The three blade covers are spaced 60 degrees apart from each other, and the inner ends of the three blade covers are connected to the round cover. This technical solution uses cloth to cover the entire fan. Not only is the dust cover troublesome to produce, but it is also inconvenient to operate during use. More importantly, its scope of application is limited and it can only be customized according to the size of the fan.

[0004] The prior art also provides another solution. Patent CN201720334545.5 provides a dustproof ceiling fan whose blades can be retracted. When not in use, the fan blades can be retracted into the dust cover to prevent dust from falling on the fan blades. Summary of the invention

[0005] The purpose of the utility model is to address the deficiencies of the prior art and to provide a dust cover for fan blades and a paper blank for folding the dust cover, which can be used for ceiling fans of different manufacturers and can be put on fan blades that are prone to dust accumulation, thereby not only preventing dust from falling but also being easy to use and beautiful.

[0006] The technical solution adopted by the utility model to solve its technical problem is: the technical solution abandons the method of covering the fan as a whole in the prior art, but only covers the fan blades. The fan blades of the ceiling fan are the main dust accumulation areas, especially the upper side and edge of the fan blades. The technical solution adopts a paper dust cover to protect the fan blades. However, due to the different shapes and sizes of the fan blades, for example, some fan blades are straight flat plates, some fan blades have a certain curvature in the width direction, some fan blades have a certain inclination angle, some fan blades have one end large and the other end small, some fan blades have curvatures on the edges, and some fan blades have thickened connecting plates at one end close to the shaft. Different fan blades have different lengths, widths, and thicknesses. It is difficult for consumers to choose a dust cover according to the specific situation of their own fans. Therefore, the technical solution adopts cardboard to make a dust cover, which is easy to fold and has a certain strength after folding. More importantly, it can be dyed, printed, and cut into a certain pattern, so that it not only plays a role in dust prevention, but also plays a role in decorating the room.

[0007] Specifically, the dust cover includes a cylindrical main body, which is sleeved on the outside of the fan blade from the outside to the inside along the length direction of the fan blade when in use, and each fan blade uses a separate dust cover. The main body includes a lower cover plate on the lower side and an upper cover plate on the upper side, and the lower cover plate and the upper cover plate are connected by a first connecting portion and a second connecting portion. The first connecting portion and the second connecting portion can be used in a variety of ways, and can be the same or different. These ways include: a folding line that is folded once, or a folding line that is folded back and forth n times continuously, n is an odd number, or a foldable folding plate, the folding plate is provided with a bonding area, and the first connecting portion and the second connecting portion are respectively located on both sides along the width direction of the fan blade.

[0008] Preferably, the lower cover plate is printed with exquisite patterns or cut with patterns.

[0009] As an embodiment, the dust cover is formed by folding a piece of paper, and the two sides of the lower cover plate are folded upward. The folded portion, i.e., the folding line of one fold, is the first connecting portion and the second connecting portion. The parts on both sides folded to the top of the fan blades are assembled into an upper cover plate through bonding.

[0010] As another embodiment, the dust cover is formed by folding a piece of paper, and one side of the lower cover plate is folded upward. The folded portion, that is, the folding line of one fold, is the first connecting portion. The part folded above the fan blade is the upper cover plate, and the other side of the lower cover plate is the folding plate, which is folded upward and bonded to the upper cover plate through an adhesive strip.

[0011] As another embodiment, the first connecting portion and the second connecting portion are both folded portions that are folded an odd number of times, and the folded portions are wavy line-shaped. When the fan blades are wider and thicker, the folded portions are stretched so that they can be put on the fan blades. When the fan blades are narrower and thicker, the folded portions are naturally folded and put on the fan blades in a relatively tight manner.

[0012] Preferably, the main body is also provided with a limiting device for preventing the main body from moving relative to the fan blade along the length direction of the fan blade, thereby fixing the dust cover to the fan blade.

[0013] Preferably, the lower cover plate is provided with a hanging hole, the hanging hole is provided with a hanging line, and a hanging object is hung at the lower end of the hanging line. In this way, the dust cover is not only used as a decoration, but also the fan and the dust cover become carriers of the decoration, allowing for more possible decorations. To enhance the reliability of the hanging line, a support bar is provided between the lower cover plate and the upper cover plate, and the upper end of the hanging line is fixed to the middle of the support bar.

[0014] Preferably, a magnetic pressure strip is also provided for pressing the upper cover plate against the surface of the fan blade.

[0015] The utility model also provides a folded paper blank for the dust cover of the fan blade, which includes a first paperboard for forming the lower cover plate, connecting paperboards for forming a first connecting portion and a second connecting portion are respectively arranged on both sides of the first paperboard, and two spliced ​​paperboards for splicing to form the upper cover plate are arranged on the outer side of the connecting paperboard, and an extended paperboard is extended along the width direction of the fan blade on one side of the spliced ​​paperboard close to the root of the fan blade, and an adhesive strip is arranged at the splicing position of the spliced ​​paperboards.

[0016] The paper is processed according to the shape of the blank, and consumers can conveniently and quickly fold it into a dust cover, put it on the fan blade and then glue it.

[0017] Preferably, the first connecting portion and the second connecting portion are provided with pre-folded folds.

[0018] The beneficial effects of the utility model are: 1. It has low cost and is easy to use. The utility model is made of cardboard, which has low cost and is easy to process. When in use, it is selected according to the number, shape and size of the fan blades, and then directly sleeved on the fan blades and then fixed. After being sleeved on the fan blades, the fan blades can be dustproof in spring, autumn and winter. When the fan needs to be used, the dust cover can be removed, which is very convenient.

[0019] 2. The dust cover can be printed with exquisite patterns and made into exquisite shapes, thus playing a decorative role and being beautiful and generous.

[0020] 3. This structure is suitable for fan blades of various specifications, which is convenient for selection according to needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of an angle of the dust cover for fan blades of the utility model in use state.

[0022] Figure 2 It is a structural schematic diagram of another angle of the dust cover for fan blades of the utility model in use.

[0023] Figure 3 yes Figure 1 A cross-sectional schematic diagram of implementation mode 1 of the dust cover.

[0024] Figure 4 It is a cross-sectional schematic diagram of a second embodiment of the dust cover of the present invention.

[0025] Figure 5 It is a cross-sectional schematic diagram of a third embodiment of the dust cover of the present invention.

[0026] Figure 6 A plan view of a paper blank of the utility model.

[0027] Description of reference numerals:

[0028] 1——Lower cover plate 11——Hanging hole

[0029] 2——Upper cover plate 3——First connecting part

[0030] 4——Second connecting portion 41——Folding plate

[0031] 42——Adhesive strip 5——Support strip

[0032] 6——Magnetic strip 7——First cardboard

[0033] 8——Connecting cardboard 9——Combining cardboard

[0034] 91——Extended cardboard. DETAILED DESCRIPTION

[0035] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments, but the scope of implementation of the present invention is not limited thereto.

[0036] Embodiment 1.

[0037] like Figures 1 to 3As shown, the dust cover for fan blades of this embodiment includes a cylindrical main body that is sleeved on the outside of the blades along the length direction of the blades, and the main body includes a lower cover plate 1 made of paper located on the lower side of the blades, and an upper cover plate 2 made of paper located on the upper side of the blades, and the lower cover plate 1 and the upper cover plate 2 are connected by a first connection portion 3 and a second connection portion 4; the first connection portion 3 and the second connection portion 4 are respectively folding lines that are folded 7 times in a row, and the folding can be telescopically deformed, so as to be suitable for blades of different widths, and the first connection portion 3 and the second connection portion 4 are respectively located on both sides along the width direction of the blades. When the width of the blades is small, the first connection portion 3 and the second connection portion 4 are folded, so that the overall width of the dust cover is small, and when the width of the blades is large, the first connection portion 3 and the second connection portion 4 are unfolded, so that the overall width of the dust cover becomes larger.

[0038] Further, the lower cover plate 1 is printed with a pattern or cut with a pattern, and the first connecting portion 3 and the second connecting portion 4 of this embodiment are also printed with a pattern. When in use, the lower cover plate 1 faces downward, and the exquisite pattern makes the dust cover of this embodiment very beautiful, thereby decorating the room and the fan.

[0039] The dust cover of this embodiment can be used for fan blades without curvature in the length direction, and can also be used for fan blades with a smaller curvature.

[0040] Furthermore, the main body is also provided with a limiting device for preventing the main body from moving relative to the length direction of the fan blade. The limiting device can be a piece of tape, and the two ends are respectively attached to the lower cover plate 1 and the upper cover plate 2 from one end of the root of the fan blade, so as to prevent the dust cover from falling off the fan blade.

[0041] Furthermore, the lower cover plate 1 is provided with a hanging hole 11, and the hanging hole 11 is provided with a hanging line, and a hanging object is hung at the lower end of the hanging line, and the hanging object can be a small lantern, a lamp, a wind chime, or other relatively light decorations, so as to further decorate. Furthermore, in order to enhance the supporting force, a support bar 5 can be provided between the lower cover plate 1 and the upper cover plate 2, and the upper end of the hanging line is fixed to the middle of the support bar 5. When in use, the support bar 5 can be located above or below the fan blades.

[0042] Furthermore, for iron blades, a magnetic pressure strip 6 is provided for pressing the upper cover plate 2 onto the surface of the blades. The magnetic pressure strip 6 can be used to wrap the dust cover more tightly around the blades.

[0043] Embodiment 2.

[0044] The difference between this embodiment and the first embodiment is that the first connection part 3 and the second connection part 4 are different. Figure 4As shown, the first connection part 3 and the second connection part 4 are both folded once. From the cross-section, the upper cover plate 2, the first connection part 3, the lower cover plate 1, and the second connection part 4 are continuously wound around the outline of the fan blade. For fan blades with smaller curvature or straight fan blades, the lower cover plate 1 and the upper cover plate 2 are a piece of paper, and the two sides of the paper are folded upward from both sides of the width direction of the fan blade and bonded at the joint. For fan blades with larger curvature, it is made of paper that is cut, folded, and bonded, and the ends are bonded together. The dust cover is suitable for fan blades with clear shapes and sizes. When in use, it is directly put on the outside of the fan blade, and its outline is roughly the same as the outline of the fan blade.

[0045] Embodiment three.

[0046] The difference between this embodiment and the second embodiment is that the first connecting portion 3 and the second connecting portion 4 are different. Figure 5 As shown, the first connection portion 3 is the same as that of the second embodiment, while the second connection portion 4 is open, that is, the first connection portion 3 is a folding line folded once, and the second connection portion 4 is a folding plate folded upward from the lower cover plate 1, and the folding plate is provided with a plurality of adhesive strips 42 for bonding to the surface of the upper cover plate 2. This embodiment combines the advantages of the first and second embodiments, and can be suitable for fan blades of different widths like the first embodiment.

[0047] Embodiment 4.

[0048] The difference between this embodiment and the third embodiment is that the first connection part 3 is different. The structure of the first connection part 3 of this embodiment is the same as the second connection part 4 of the third embodiment. Both are open and can be folded upward around the side of the fan blade and then pasted to the upper cover plate 2.

[0049] Embodiment five.

[0050] This embodiment provides a paper blank for folding the dust cover of the fourth embodiment, such as Figure 6 As shown, it includes a first cardboard 7 for forming the lower cover plate 1, and connecting cardboards 8 for forming the first connecting portion 3 and the second connecting portion 4 are respectively arranged on both sides of the first cardboard 7, and two splicing cardboards 9 for splicing to form the upper cover plate 2 are arranged on the outer side of the connecting cardboard 8, and an extended cardboard 91 is extended along the width direction of the fan blade on one side of the splicing cardboard 9 close to the root of the fan blade, and an adhesive strip 42 is arranged at the splicing position of the splicing cardboard 9.

[0051] The first connecting portion 3 and the second connecting portion 4 are provided with pre-folded folds, and the folds are two, so that there is a certain distance between the upper cover plate 2 and the lower cover plate 1 after folding. The paper blanks of the dust cover of other structures can refer to this embodiment and be made according to the structure of the dust cover, which will not be described in detail here.

[0052] The extended cardboard 91 can meet the demand for a thicker root of the fan blades. Many fan blades have a thicker connecting piece at the root, and the fan blades are connected to the rotating shaft through the connecting piece. In this embodiment, the distance between the upper cover plate 2 and the lower cover plate 1 at this position can be enlarged by extending the cardboard 91, so that the dust cover and the fan blades fit better.

[0053] Furthermore, a sealing cardboard (not shown) can be provided on one side of the first cardboard 7 close to the free end of the fan blade. When in use, the sealing cardboard is folded and inserted between the upper cover plate 2 and the lower cover plate 1, making the dust cover more beautiful.

[0054] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit the protection scope of the utility model. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the utility model.

Claims

1. A dust cover for fan blades, characterized in that: The invention comprises a cylindrical main body which is sleeved on the outside of the fan blade along the length direction of the fan blade, the main body comprising a lower cover plate (1) made of paper located at the lower side of the fan blade and an upper cover plate (2) made of paper located at the upper side of the fan blade, the lower cover plate (1) and the upper cover plate (2) being connected via a first connecting portion (3) and a second connecting portion (4); the first connecting portion (3) and the second connecting portion (4) are respectively a folding line which is folded once, or a folding line which is folded back and forth continuously n times, where n is an odd number, or a foldable folding plate (41), the folding plate being provided with a bonding area, the first connecting portion (3) and the second connecting portion (4) being respectively located on both sides along the width direction of the fan blade.

2. The dust cover for fan blades according to claim 1, characterized in that: The lower cover plate (1) is printed with a pattern or cut with a pattern.

3. The dust cover for fan blades according to claim 1, characterized in that: The first connecting portion (3) and the second connecting portion (4) are both folded once, and the lower cover plate (1) and the upper cover plate (2) are a piece of paper, the two sides of which are folded upwards from the two sides in the width direction of the fan blade and bonded at the joint.

4. The dust cover for fan blades according to claim 1, characterized in that: The first connecting portion (3) is a folded fold line, and the second connecting portion (4) is a folding plate folded upward from the lower cover plate (1). The folding plate is provided with a plurality of adhesive strips (42) for bonding to the surface of the upper cover plate (2).

5. The dust cover for fan blades according to claim 1, characterized in that: The main body is also provided with a limiting device for preventing the main body from moving relative to the length direction of the fan blade.

6. The dust cover for fan blades according to claim 1, characterized in that: The lower cover plate (1) is provided with a hanging hole (11), the hanging hole (11) is provided with a hanging line, and a hanging object is hung at the lower end of the hanging line.

7. The dust cover for fan blades according to claim 6, characterized in that: A support bar (5) is provided between the lower cover plate (1) and the upper cover plate (2), and the upper end of the suspension line is fixed to the middle part of the support bar (5).

8. The dust cover for fan blades according to claim 1, characterized in that: A magnetic pressure strip (6) is also provided for pressing the upper cover plate (2) onto the surface of the fan blade.

9. A paper blank for a dust cover for a fan blade according to folding claims 1 to 8, characterized in that: The invention comprises a first paperboard (7) for forming the lower cover plate (1), connecting paperboards (8) for forming a first connecting portion (3) and a second connecting portion (4) are respectively arranged on both sides of the first paperboard (7), two splicing paperboards (9) for splicing to form the upper cover plate (2) are arranged on the outer side of the connecting paperboard (8), an extended paperboard (91) is extended from one side of the splicing paperboard (9) close to the root of the fan blade in the width direction of the fan blade, and an adhesive strip (42) is arranged at the splicing position of the splicing paperboards (9).

10. The paper blank according to claim 9, characterized in that: The first connecting portion (3) and the second connecting portion (4) are provided with pre-folded folds.

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