Dustproof fan blade and ceiling fan thereof

Abstract

The utility model relates to the field of fans, in particular to a dustproof fan blade and a ceiling fan comprising the same, the dustproof fan blade comprises a blade, a protective film group is arranged on the outer surface of the blade, the protective film group is composed of a plurality of protective films which are connected with one another and can be torn off layer by layer from the outer layer to the inner layer, the protective film connected with the blade is the inner layer, and the protective film located on the outermost side is the outer layer. And each protective film is provided with a tearing part for separating the protective film from the adjacent protective film. The problems that stains of fan blades are not thoroughly cleaned, and operation is inconvenient are solved, meanwhile, energy consumption caused by load increasing of the fan is reduced, and therefore the service life of the fan is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to a fan field, concretely relates to a dustproof fan blade and a ceiling fan thereof.

BACKGROUND

[0002] When the electric fan works, the fan blade rotates at high speed and rubs with air, so that the fan blade is electrified due to friction, and then adsorbs dust or other stains in the air on the fan blade, which brings inconvenience to the cleaning of the fan blade.

[0003] A fan blade dustproof cover disclosed in Chinese utility model patent CN202914409U comprises a cloth cover formed by movably connecting a left cloth cover and a right cloth cover, the cloth cover is connected with a cloth cover sleeve in the shape of a fan blade, the cloth cover sleeve is a double-layer structure and is provided with an inner cover, and the left cloth cover and the right cloth cover are connected through a zipper.

[0004] The above technical scheme prevents the fan blade from being stained with dust by additionally arranging the cloth cover sleeve matched with the shape of the fan blade, but the dustproof effect is not good because the cloth cover sleeve and the zipper combination type cover are arranged on the fan blade with a gap, and the fan blade is still stained with dust and stains. In addition, the dustproof cover is detachable and washable, so that the dustproof cover needs to be replaced or sleeved on the fan blade after cleaning during the cleaning process, and the use process is complex and inconvenient. Furthermore, the material of the dustproof cover is cloth, which increases the load bearing of the fan, so that the energy consumption of the driving motor is increased during the use of the fan blade, and the service life of the fan is reduced.

[0005] In view of the above technical problems, the utility model is hereby researched and proposed.

UTILITY MODEL CONTENTS

[0006] The utility model wants to solve the technical problem to provide a dustproof fan blade, including blade, the outer surface of blade is equipped with the protection film group, the protection film group is composed of a plurality of mutual connection and can be from the outer layer to the inner layer layer by layer tearing off the protection film, the protection film connected with the blade is the inner layer, the protection film in the outermost side is the outer layer, every The protection film has the tear and pull part for separating it with adjacent protection film. The application is covered with a plurality of protection films on the surface of the blade, which is in contact with the blade without gap, so as to be separated from the external environment to prevent the blade from being stained with dust or stains; the outer layer of the protection film is easily torn off through the tear and pull part, which is convenient to operate; at the same time, the protection film is light and thin without weight pressure, which solves the problem that the fan blade is not completely cleaned and inconvenient to operate, and helps to reduce the energy consumption of the fan caused by increasing the weight, so as to prolong the service life of the fan.

[0007] To solve the above technical problems, the utility model provides a dustproof fan blade, including the blade, the blade outer surface is equipped with the protection film group, the protection film group is by a plurality of interconnects and can be from the outer layer to the inner layer tear off layer by layer protection film is connected with the protection film of the blade is the inner layer, the outermost protection film is the outer layer, every the protection film has the tear and pull part for separating it with adjacent protection film.

[0008] Like the above-mentioned dustproof fan blade, the contact surfaces between adjacent protection films and the protection film of the inner layer and the blade are covered with adhesive layers, the adhesive stress of each adhesive layer is different, and the adhesive stress of the adhesive layer between the protection film of the inner layer and the blade is greater than the adhesive stress of each adhesive layer in the protection film group, and the adhesive stress of the adhesive layer gradually increases from the outer layer to the inner layer in the plurality of protection films in the protection film group.

[0009] Like the above-mentioned dustproof fan blade, the tear and pull parts of two adjacent protection films are staggered.

[0010] Like the above-mentioned dustproof fan blade, the blade is provided with a locking part for relatively fixing the tear and pull part on the blade.

[0011] Like the above-mentioned dustproof fan blade, the protection film further comprises a perforated line for tearing and pulling to damage the protection film, and the perforated line extends from one end close to the tear and pull part to the end of the blade.

[0012] Like the above-mentioned dustproof fan blade, the locking part comprises a limiting column arranged on the blade, the tear and pull part on each protection film is sleeved on the limiting column layer by layer, and the locking part further comprises a locking piece matched with the limiting column to limit the movement of the tear and pull part.

[0013] Like the above-mentioned dustproof fan blade, the protection film comprises two perforated lines arranged on both sides of the tear and pull part, and the ends of the perforated lines are connected with the protection film.

[0014] Like the above-mentioned dustproof fan blade, the perforated line is arranged on the leeward side of the blade.

[0015] Like the above-mentioned dustproof fan blade, the tear and pull part can be integrally arranged with the protection film.

[0016] The application also provides a ceiling fan comprising the above-mentioned dustproof fan blade.

[0017] Compared with the prior art, the dustproof fan blade has the following advantages:

[0018] 1. In this application, several protective films are covered on the surface of the blades, which are in close contact with the blades without gaps, thus isolating them from the external environment to prevent dust or stains from adhering to the blades. The outer protective film can be easily removed by tearing the tear-off part, making the operation convenient. At the same time, the protective film is thin and light, without bearing any weight or pressure, which solves the problems of incomplete cleaning of the fan blades and inconvenient operation. It also helps to reduce the energy consumption caused by the increased load on the fan, thereby extending the service life of the fan.

[0019] 2. The protective film of the protective film group in this application has multiple layers, and the two adjacent protective films are connected by an adhesive layer. When cleaning the dust on the blades multiple times, you only need to use the tear-off part on each protective film to tear off the outer protective film to the inner protective film one by one. The operation is simple and the cleaning is convenient.

[0020] 3. In this application, the adhesive layer of the outer protective film is self-adhesive, which can completely peel off the protective film and its corresponding adhesive layer from the surface of the secondary outer protective film, so that no self-adhesive will remain on the secondary outer protective film after the outer protective film is peeled off, which has the beneficial effect of removing self-adhesive without residue.

[0021] 4. The protective film in this application is a matte film, which reduces the reflection of light on the fan surface during fan rotation.

[0022] 5. The technical solution of this application has a protective film covering the blades, which can not only prevent stains or scratches during transportation, installation and use, but also protect the fan blades from oxidation and chemical damage. [Attached Image Description]

[0023] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, wherein:

[0024] Figure 1 This is a schematic diagram of the structure of the dustproof fan blade in this utility model;

[0025] Figure 2 This is a schematic diagram of Embodiment 1 of the dustproof fan blade of this utility model;

[0026] Figure 3 This is the utility model Figure 1 A magnified view of a portion of the image;

[0027] Figure 4 This utility model relates to a dustproof fan blade. Figure 2 A magnified view of a portion of the image;

[0028] Figure 5 This is a schematic diagram of embodiment 2 of the dustproof fan blade in this utility model;

[0029] Figure 6is a schematic diagram of the dustproof fan blade embodiment 3 of the utility model;

[0030] Figure 7 is a structural schematic diagram of the protective film.

[0031] In the drawing:

[0032] 1, blade; 2, protective film group; 201, outer layer; 202, inner layer; 22, protective film; 221, film body; 222, adhesive layer; 23, punching line; 24, avoiding hole; 31, tear-off part; 32, locking part; 321, limiting column; 322, locking piece.

CONCRETE EMBODIMENT

[0033] The utility model makes a detailed description in connection with the attached drawing on the embodiment of the utility model. Figures 1-7 As shown in the utility model includes a dustproof fan blade, including blade 1, the outer surface of blade 1 is equipped with protective film group 2, the protective film group 2 is composed of several mutually connected and can be by outer layer 201 to inner layer 202 layer by layer tear off protective film 22, and the protective film 22 connected with blade 1 is inner layer 202, the protective film 22 located at the outermost side is outer layer 201, every protective film 22 has tear-off part 31 for separating it from adjacent protective film 22. Compared with the prior art using cloth cover double-layer structure to wrap blade 1 to separate from the dust of outside, in the present application, the surface of blade 1 is covered with several protective films 22, which is in contact with blade 1 without gap, so as to separate from the environment outside to prevent blade 1 from being stained with dust or stain, and the protective film 22 of outer layer 201 is easily torn off through tear-off part 31, which is convenient to operate. At the same time, the protective film 22 is light and thin without weight pressure, which solves the problem of incomplete cleaning of fan blade 1 stain and inconvenient operation, and helps to reduce the energy consumption of fan caused by increasing weight, thereby prolonging the service life of fan.

[0034] As a further embodiment of the application, the contact surfaces between adjacent protective films 22 and the protective film 22 of inner layer 202 and blade 1 are covered with adhesive layer 222, the adhesive stress of every adhesive layer 222 is different, and the adhesive stress of the adhesive layer 222 between the protective film 22 of inner layer 202 and blade 1 is greater than the adhesive stress of every adhesive layer 222 in protective film group 2, and the adhesive stress of the adhesive layer 222 gradually increases from outer layer 201 to inner layer 202 in several protective films 22 in protective film group 2. The protective film 22 of protective film group 2 has multiple layers, and two adjacent protective films 22 are connected by adhesive layer 222. When cleaning the dust on blade 1 multiple times, only tear-off part 31 on every protective film 22 is used to tear off the protective film 22 from outer layer 201 to inner layer 22 layer by layer, which is simple and convenient to operate.

[0035] As a further embodiment of the present application, one side of the protective film 22 is a protective side and the other side is an adhesive side. The protective side of the protective film 22 or the blade 1 can be torn off from the corresponding adhesive layer 222. The adhesive side of the protective film 22 is tightly adhered to the corresponding adhesive layer 222 so that the adhesive layer 222 is torn off at the same time as the corresponding protective film 22 is torn off. For example Figure 7 In this embodiment, the protective film group 2 has three layers of protective films 22 (equivalent to the film body 221 in the figure) and an adhesive layer 222 corresponding to each protective film 22 (the different densities of the same fill pattern of the adhesive layer 222 in the figure only indicate the different adhesive stresses). The lower surface of each protective film 22 facing the blade 1 is considered to be the adhesive side, and the upper surface of the protective film 22 opposite to the lower surface of the blade 1 is considered to be the protective side. The friction coefficient of the protective side is smaller than that of the adhesive side, so that the adhesive stress between the adhesive layer 222 and the corresponding protective film 22 is greater than the adhesive stress between the adhesive layer 222 and the adjacent protective film 22. Further, the adhesive layer 222 is specifically self-adhesive. By using the characteristics of self-adhesive that is not easy to solidify and has elasticity, the self-adhesive is not easy to leave when the protective film group 2 is torn apart, and the corresponding self-adhesive is also torn off when the protective film 22 is torn off from the adjacent protective film 22, so that the self-adhesive is not left on the surface of the protective film 22 in the next outer layer (indicating the positional relationship between the protective film 22 in the outer layer 201 and the adjacent protective film 22 in the next layer 202). In the present application, the adhesive layer 222 of the protective film 22 in the outer layer 201 is self-adhesive, which can completely tear off the protective film 22 and the corresponding adhesive layer 222 from the surface of the protective film 22 in the next outer layer, so that the self-adhesive is not left on the protective film 22 in the next outer layer after the outer layer 201 of the protective film 22 is torn off, which has the beneficial effect of tearing off the self-adhesive without residue.

[0036] When cleaning the dust or stains attached to the blade 1, one hand is fixed on the blade 1 and the other hand holds the tearing and pulling part 31 of the protective film 22 in the outer layer 201 and tears and pulls it with force to break the adhesive stress between the protective film 22 in the outer layer 201 and the protective film 22 in the next outer layer, so that the protective film 22 in the outer layer 201 is peeled off from the protective film 22 in the next outer layer. At this time, when the protective film 22 is torn off from the adjacent protective film 22, the corresponding adhesive layer 222 is also torn off, and then the protective film 22 in the next outer layer is exposed outside the outer layer 201 of the protective film group 2, to complete the cleaning process of the outer surface of the blade 1.

[0037] As Figure 1 , Figure 3 , Figure 7As shown, as a further embodiment of the present application, the tear-pull portions 31 of two adjacent protective films 22 are arranged staggered with each other, so that when the protective film 22 of the outer layer 201 is torn, the protective film 22 of the next outer layer will not be pulled, and the adhesive stress between the adhesive layer 222 of the protective film 22 of the next outer layer and the adjacent protective film 22 will not be damaged, so that the protective film 22 of the outer layer 201 can be torn more easily and conveniently.

[0038] The tear-pull portions 31 of two adjacent protective films 22 are not overlapped, and during the tearing process, the tear-pull portion 31 of each protective film 22 can be separated from the adjacent protective film 22. The protective films 22 in the protective film group 2 from the outer layer 201 to the inner layer 202 are adhered by self-adhesive, and the adhesive stress of the adhesive layer 222 of each protective film 22 can be controlled by controlling the amount of self-adhesive or using self-adhesive with different component proportions, so that the adhesive stress of the adhesive layer 222 of each protective film 22 is different, and when the protective film 22 of the outer layer 201 is torn, the adhesive stress of the adhesive layer 222 of the protective film 22 of the outer layer 201 and the outer layer 201 will not be damaged.

[0039] In addition, as shown in Figure 1 , Figure 3 , Figure 5 shown, the tear-pull portion 31 can be integrally arranged with the protective film 22. As shown in Figure 2 , Figure 4 , the tear-pull portion 31 and the protective film 22 can also be separately made and then adhered. At the same time, the tear-pull portion 31 itself can be coated with an adhesive layer 222 and connected with the blade 1 or the protective film 22 without gap, and the adhesive stress of the protective film 22 on the same layer is the same. Since the proportion of one end of the tear-pull portion 31 to the blade 1 is small, the tear-pull portion 31 can also be without the adhesive layer 222, and will not produce noise during the rotation of the fan. As shown in Figures 1-6 , further, the protective film group 2 is further provided with a plurality of avoiding holes 24 for avoiding the fasteners fixedly connected with the fan blades.

[0040] As a further embodiment of the present application, the main component of the protective film 22 is polypropylene material, which has the characteristics of chemical resistance, fatigue resistance, electrical insulation, etc., so that the protective film 22 is durable and not easy to absorb dust or stains, and the protective film 22 can also be made of thermoplastic polyurethane elastomer, polyethylene, polyvinyl chloride, etc.

[0041] The technical solution of the present application has the protective film group 2 on the blade 1, which not only can avoid staining stains or leaving scratches due to scratching during transportation, installation and use, but also can play a protective role of anti-oxidation and chemical resistance for the fan blades.

[0042] As a further embodiment of the present application, the protective film 22 is preferably a matt film, since a matt film can absorb more light and can prevent the reflection of light on the surface of the fan during rotation of the fan.

[0043] As shown in Figure 7 , the present application also proposes a self-adhesive film for a dustproof fan blade, comprising a film body 221, the lower surface of the film body 221 being fixed in a desired position by an adhesive, the adhesive comprising pulp, polyester resin, monomer, stabilizer and auxiliary agent.

[0044] The present application also discloses a ceiling fan comprising the dustproof fan blade described above, the protective film group 2 being arranged on each blade 1 of the ceiling fan to play a protective role.

[0045] In addition, the film coating process can use a blister method to coat the protective film group 2 on the blade 1, and can also be applied to some irregularly shaped blades 1. In addition, the protective film group 2 whose main component is a thermoplastic sheet film plastic can also use a punching method to coat the protective film group 2 on the outer surface of the blade 1. In addition, the protective film 22 can also be wrapped around the outer surface of the blade 1 to form the protective film group 2. The film coating process of the above technical solution is a routine practice for those skilled in the art and belongs to the prior art.

[0046] Based on the different embodiments of the tear-off part 31 mentioned above, specific examples are listed below for further explanation.

[0047] Example 1

[0048] As shown in Figure 2 , Figure 4 Unlike the technical solution of the present application, the protective film 22 of the dustproof fan blade 1 in Example 1 also comprises a perforated line 23 for tearing to damage the protective film 22, the perforated line 23 extending from one end close to the tear-off part 31 to the end of the blade 1. In this embodiment 1, the protective film group 2 of the blade 1 covers multiple surfaces. In order to more conveniently tear off the protective film 22, the perforated line 23 is added to the protective film 22. When tearing off the protective film 22 contaminated with dust, the tear-off part 31 of the protective film 22 is held and an acting force is applied. The tear-off part 31 pulls and damages the perforated line 23, which helps to more quickly damage the protective film 22 and tear off the layer of protective film 22, so that the next outer layer of protective film 22 is exposed to the position of the outer layer 201 of the blade 1. The above-mentioned tear-off part 31 is separately made and adhered to the protective film 22 by processing. In addition, the fan works for a long time at high speed. In order to avoid weathering and cracking of the perforated line 23, the perforated line 23 is preferably arranged on the side of the leeward surface of the blade 1, and the appearance of the fan is improved.

[0049] Example 2

[0050] As Figure 5 shown, each protective film group 2 of the blade 1 covers multiple surfaces, and different from the embodiment 1 is that the tearable part 31 is integrally arranged between the protective film 22 in this embodiment, and the protective film 22 includes two perforation lines 23 arranged on both sides of the tearable part 31, and the ends of the perforation lines 23 are connected with the protective film 22, which is simple in structure and can avoid unnecessary debris garbage.

[0051] Embodiment 3

[0052] As Figure 6 shown, different from the embodiment 1 is that the blade 1 is provided with a locking part 32 for relatively fixing the tearable part 31 on the blade 1. The locking part 32 includes a limiting column 321 arranged on the blade 1, and each tearable part 31 of the protective film group 2 is sleeved on the limiting column 321 layer by layer, and the locking part 32 further includes a locking member 322 cooperating with the limiting column 321 to limit the activity of the tearable part 31. The same as the embodiment 2 is that the protective film group 2 of the blade 1 covers multiple surfaces, and the tearable part 31 is integrally arranged between the protective film 22. Each tearable part 31 of the protective film group 2 is provided with a hole position cooperating with the limiting column 321, and the blade 1 is provided with a through hole through which the limiting column 321 penetrates, and the limiting column 321 penetrates through the through hole on the blade 1 and sleeves the tearable part 31 of the inner layer to the outer layer 201 of the protective film group 2 on the surface layer of the blade 1 layer by layer, and finally sleeves the locking member 322 on the limiting column 321 and locks it to prevent the tearable part 31 from separating from the limiting column 321.

[0053] At this time, the position of each tearable part 31 of the protective film group 2 coincides. When the protective film 22 of the outer layer 201 needs to be torn off, the locking member 322 needs to be released, then the tearable part 31 on the protective film 22 of the outer layer 201 is separated from the limiting column, the connection relationship between the tearable part 31 and the locking part 32 is released, and then the protective film 22 to be torn off is torn off according to the above tearing method, and the locking member 322 sleeves and locks the remaining protective film 22 on the limiting column 321, and the separation between the tearable parts 31 in the protective film group 2 is realized through the operation process. It should be noted that due to the light and thin texture of the protective film group 2, the external force applied to the tearable part 31 can directly damage the tearable part 31 from the locking part 32, thereby releasing the connection relationship between the tearable part 31 and the locking part 32. Specifically, in the locking part 32 of the embodiment 3, the screw and the nut threadedly cooperate to limit the activity of the tearable part 31.

Claims

1. A dust guard vane, characterized by The fan blade (1) is provided with a protective film group (2) on its outer surface, the protective film group (2) is composed of a plurality of protective films (22) connected with each other and can be peeled off layer by layer from the outer layer (201) to the inner layer (202), the protective film (22) connected with the fan blade (1) is the inner layer (202), the protective film (22) located at the outermost side is the outer layer (201), and each protective film (22) has a tearing and pulling part (31) for separating it from the adjacent protective film (22).

2. A dust guard according to claim 1, wherein An adhesive layer (222) is coated between the contact surfaces of the adjacent protective films (22) and between the protective film (22) of the inner layer (202) and the fan blade (1), the adhesive stress of each adhesive layer (222) is different, and the adhesive stress of the adhesive layer (222) coated between the protective film (22) of the inner layer (202) and the fan blade (1) is greater than the adhesive stress of each adhesive layer (222) in the protective film group (2), and the adhesive stress of the adhesive layer (222) gradually increases from the outer layer (201) to the inner layer (202) in the protective film group (2).

3. A dust guard according to claim 1 or 2, wherein The tearing and pulling parts (31) of two adjacent protective films (22) are staggered.

4. A dust guard according to claim 1 or 2, wherein The fan blade (1) is provided with a locking part (32) for relatively fixing the tearing and pulling part (31) on the fan blade (1).

5. A dust guard according to claim 2, wherein The protective film (22) further comprises a punching line (23) for tearing and pulling to damage the protective film (22), the punching line (23) extends from one end close to the tearing and pulling part (31) to the end of the fan blade (1).

6. A dust guard according to claim 4, wherein The locking part (32) comprises a limiting column (321) provided on the fan blade (1), the tearing and pulling part (31) of each protective film (22) is sleeved on the limiting column (321) layer by layer, and the locking part (32) further comprises a locking member (322) cooperating with the limiting column (321) to limit the movement of the tearing and pulling part (31).

7. A dust guard according to claim 5, wherein The protective film (22) comprises two punching lines (23) provided on both sides of the tearing and pulling part (31), and the ends of the punching lines (23) are connected with the protective film (22).

8. A dust guard according to claim 5, wherein The punching line (23) is provided on the leeward side of the fan blade (1).

9. The dust-resistant fan blade according to claim 1, wherein The tearing and pulling part (31) can be integrally provided with the protective film (22).

10. A ceiling fan, characterized by The dustproof fan blade comprises the protective film according to any one of claims 1 to 9. The dustproof fan blade comprises the protective film according to any one of claims 1 to 9.

Images