A floor fan

Abstract

The present invention discloses a floor fan, which comprises a fan head and a floor base. The fan head is movably connected to the floor base. The fan head includes a grille, a fan blade assembly and a motor. The fan blade assembly is arranged inside the grille and is connected to the motor. The grille includes a front grille and a rear grille. First protrusions are arranged on both sides of the front grille, and second protrusions are arranged on both sides of the rear grille. The first protrusions and the second protrusions are combined into a stud. The floor base includes a floor base body and a column. The column is connected to both sides of the floor base body. The studs on both sides of the grille pass through the column and are connected to a nut sleeve. The structure of the present invention is simple, the connection is firm, the disassembly and assembly are convenient and fast, and it can save space and is convenient for transportation or storage.

Description

Technical Field

[0001] The present invention relates to the technical field of electric fans, and more particularly to a floor fan. Background Art

[0002] Floor fans are commonly used household appliances with a very high usage frequency in summer. When purchasing a floor fan online, for the convenience of transportation, merchants usually send the unassembled floor fan in the form of parts. However, due to the overly complex structure of the floor fan, many people are unable to assemble it by themselves or it takes a relatively long time to assemble. At the same time, after long-term use, the floor fan needs to be cleaned, or when moving, the fan needs to be disassembled for convenient transportation. However, due to the relatively complex structure, the disassembly is rather troublesome and requires the assistance of tools such as screwdrivers for disassembly. Therefore, the inventor believes it is necessary to design a floor fan that can be quickly disassembled and assembled manually without the need for auxiliary tools. Summary of the Invention

[0003] The purpose of the present invention is to provide a floor fan, aiming to solve the problem of troublesome disassembly and assembly of floor fans in the prior art.

[0004] To achieve the above purpose, the present invention provides the following technical solutions:

[0005] A floor fan includes a fan head and a floor base. The fan head is movably connected to the floor base. The fan head includes a grille, a fan blade assembly, and a motor. The fan blade assembly is disposed inside the grille and is connected to the motor.

[0006] It includes a fan head and a floor base. The fan head is movably connected to the floor base. The fan head includes a grille. The grille includes a front grille and a rear grille. First protrusions are provided on both sides of the front grille, and second protrusions are provided on both sides of the rear grille. The first protrusions and the second protrusions are combined to form a stud.

[0007] The floor base includes a floor base body and a column. The column is connected to both sides of the floor base body. The studs on both sides of the grille pass through the column and are connected to a nut sleeve.

[0008] The fan blade assembly includes a first hub, a second hub, and a plurality of blades. The first hub is threadedly connected to the second hub. The blades are detachably connected to the first hub and are clamped between the first hub and the second hub.

[0009] Further, a second through hole is provided on the column. The stud passes through the second through hole and is threadedly connected to the nut sleeve.

[0010] Further, the nut sleeve includes a first cylinder and a second cylinder. The first cylinder and the second cylinder are connected by a first reinforcing rib. The first cylinder is threadedly connected to the stud. A limiting protrusion is formed at one end of the second through hole close to the mesh cover.

[0011] Further, a plurality of fastening portions are provided on the front mesh cover, and a plurality of fastening holes are provided on the rear mesh cover. The fastening portions are fastened to the fastening holes. The front mesh cover is integrally formed with the first protrusion, and the rear mesh cover is integrally formed with the second protrusion.

[0012] Further, the first hub includes a first hub portion and a first ring portion. The blade is detachably connected to the first ring portion. The second hub includes a second hub portion, a second ring portion and a second hub body. The second hub portion is threadedly connected to the first hub portion. The blade is clamped between the first ring portion and the second ring portion.

[0013] Further, the second ring portion is located inside the first ring portion.

[0014] Further, the blade includes a blade body and a connecting portion. The connecting portion is connected to one end of the blade body. The connecting portion includes a resisting top portion and a plugging portion. A first through hole is provided on the plugging portion. The first ring portion includes a plurality of installation positions and a plurality of fixing positions. The plugging portion is connected to the installation position through the first through hole. A first positioning strip extending towards the first hub portion is provided on one side of the installation position close to the first hub portion. The first positioning strip is connected to both sides of the installation position. The first positioning strip resists against the first through hole. A second positioning strip extending towards the first hub portion is provided on one side of the fixing position close to the first hub portion. The second positioning strip is connected to both sides of the fixing position. The second positioning strip resists against both sides of the periphery of the plugging portion.

[0015] Further, the installation position and the fixing position are adjacent to each other. The resisting top portion resists against one side of the installation position and the fixing position away from the first hub portion.

[0016] Further, a support strip is connected between the first hub portion and the first ring portion. The support strip is provided between the installation position and the fixing position. The support strip is used to support the plugging portion.

[0017] Further, a plurality of second reinforcing ribs are provided on the outer side of the first hub portion. A shaft hole is provided in the middle of the second hub portion. The shaft hole is connected to the motor.

[0018] A floor fan provided by the present invention has the following beneficial effects compared with the prior art:

[0019] The present invention forms a floor fan that can be quickly disassembled and assembled through a fan blade assembly that can be quickly disassembled and a floor fan housing that can be quickly disassembled. Its structure is simple, and all components can be quickly disassembled and assembled manually without the aid of any tools, greatly improving the installation efficiency and facilitating wide application. Description of the Drawings

[0020] Figure 1 It is a schematic structural diagram of the present invention;

[0021] Figure 2 It is a schematic structural diagram of the fan head in the present invention;

[0022] Figure 3 It is an exploded view of the grille in the present invention;

[0023] Figure 4 It is a schematic structural diagram of the floor stand in the present invention;

[0024] Figure 5 It is a schematic structural diagram of the nut sleeve in the present invention;

[0025] Figure 6 It is a schematic front view structural diagram of the fan blade assembly in the present invention;

[0026] Figure 7 It is a schematic back view structural diagram of the fan blade assembly in the present invention;

[0027] Figure 8 It is an exploded structural diagram of the fan blade assembly in the present invention;

[0028] Figure 9 It is a schematic structural diagram of the first hub in the present invention;

[0029] Figure 10 It is a schematic structural diagram of the second hub in the present invention.

[0030]

Explanation of Reference Numerals

[0031] 1 - Fan head, 11 - Grill, 101 - Front grill, 1011 - First protrusion, 1012 - Clamping part, 102 - Rear grill, 1021 - Second protrusion, 1022 - Clamping hole, 103 - Stud, 104 - Nut sleeve, 1041 - First cylinder, 1042 - Second cylinder, 1043 - First reinforcing rib, 1044 - Knob, 12 - Fan blade assembly, 121 - First hub, 1211 - First hub part, 1212 - First ring part, 1213 - Mounting position, 1214 - Fixing position, 1215 - First positioning strip, 1216 - Second positioning strip, 1217 - Support strip, 1218 - Second reinforcing rib, 122 - Second hub, 1221 - Second hub part, 1222 - Second ring part, 1223 - Second hub body, 1224 - Axle hole, 123 - Blade, 1231 - Blade body, 1232 - Connecting part, 1233 - Abutting top, 1234 - Insertion part, 1235 - First through hole,

[0032] 2 - Floor - standing base, 21 - Floor - standing base body, 22 - Column, 221 - Second through hole, 222 - Limit protrusion. Detailed implementation mode

[0033] The present invention will be described in detail below in conjunction with specific embodiments.

[0034] As Figures 1 to 10 shown, a floor - standing fan includes a fan head 1 and a floor - standing base 2. The fan head 1 is movably connected to the floor - standing base 2. The fan head 1 includes a grill 11, a fan blade assembly 12 and a motor (not shown in the drawings). The fan blade assembly 12 is arranged inside the grill 11. The fan blade assembly 12 is connected to the motor, and the motor is connected to the grill 11. It can be connected inside the grill 11 or outside the grill 11.

[0035] The grill 11 includes a front grill 101 and a rear grill 102. The rear grill 102 is connected to the motor. First protrusions 1011 are provided on both sides of the front grill 101, and second protrusions 1021 are provided on both sides of the rear grill 102. The first protrusions 1011 and the second protrusions 1021 are combined to form a stud 103. Both the first protrusions 1011 and the second protrusions 1021 are half studs. After connecting and combining them, they form a stud 103. The stud 103 is threadedly connected to a nut sleeve 104. There is a gap between the nut sleeve 104 and the grill 11. The gap is used to accommodate the solid structure of the column 22 to prevent the column 22 from detaching from the stud 103.

[0036] The floor - standing base 2 includes a floor - standing base body 21 and columns 22. The columns 22 are connected to both sides of the floor - standing base body 21. The studs 103 on both sides of the grill pass through the columns 22 and are then connected to the nut sleeve 104.

[0037] The fan blade assembly 12 includes a first hub 121, a second hub 122, and a plurality of blades 123. The number of blades 123 is 2n + 1, where n is a natural number. By setting an odd number of blades, resonance is avoided and the stability of the fan blades 123 is improved. Preferably, n is 2 or 3. The first hub 121 is threadedly connected to the second hub 122, and the blades 123 are detachably connected to the first hub 121. The blades 123 are clamped between the first hub 121 and the second hub 122. The first hub 121 includes a first hub portion 1211 and a first ring portion 1212, and the blades 123 are detachably connected to the first ring portion 1212. The second hub 122 includes a second hub portion 1221, a second ring portion 1222, and a second hub body 1223. The second hub portion 1221 is threadedly connected to the first hub portion 1211, and the blades 123 are clamped between the first ring portion 1212 and the second ring portion 1222. The second ring portion 1222 is located inside the first ring portion 1212.

[0038] In this embodiment, a second through hole 221 is provided on the column 22, and the stud 103 passes through the second through hole 221 and is threadedly connected to the nut sleeve 104.

[0039] In this embodiment, the nut sleeve 104 includes a first cylinder 1041 and a second cylinder 1042. The first cylinder 1041 and the second cylinder 1042 are connected by a first reinforcing rib 1043 to make the nut sleeve 104 more robust. The first cylinder 1041 is threadedly connected to the stud 103. A limiting protrusion 222 is formed at one end of the second through hole 221 close to the mesh cover 11. The limiting protrusion 222 can block one end of the second through hole 221 close to the mesh cover 11 by the second cylinder 1042, preventing the column 22 from detaching from the stud 103. The limiting protrusion 222 is located in the gap between the nut sleeve 104 and the mesh cover 11. The nut sleeve 104 is also provided with a wrench 1044. By providing the wrench 1044, it is convenient to unscrew the nut sleeve 104 and separate the nut sleeve 104 from the stud 103.

[0040] In this embodiment, a plurality of fastening portions 1012 are further provided on the front mesh cover 101, and a plurality of fastening holes 1022 are further provided on the rear mesh cover 102. The fastening portions 1012 are fastened to the fastening holes 1022. The front mesh cover 101 and the first protrusion 1011 are integrally formed, and the rear mesh cover 102 and the second protrusion 1021 are integrally formed. The fastening of the fastening portions 1012 and the fastening holes 1022 and the setting of the integral formation of the mesh cover 11 and the protrusion make the connection between the front mesh cover 101 and the rear mesh cover 102 tight and stable. In this embodiment, the fastening portions 1012 and the front mesh cover 101 are integrally formed, and the fastening holes 1022 and the rear mesh cover 102 are integrally formed. Through the integral formation setting, the front mesh cover 101 and the rear mesh cover 102 can be stably connected through a simple structure.

[0041] In this embodiment, the blade 123 includes a blade body 1231 and a connecting portion 1232. The connecting portion 1232 is connected to one end of the blade body 1231. The connecting portion 1232 includes a butting portion 1233 and a plugging portion 1234. A first through hole 1235 is provided on the plugging portion 1234. The first ring portion 1212 includes a plurality of mounting positions 1213 and a plurality of fixing positions 1214. The plugging portion 1234 is connected to the mounting position 1213 through the first through hole 1235. A first positioning strip 1215 extending toward the first hub portion 1211 is provided on one side of the mounting position 1213 close to the first hub portion 1211. The first positioning strip 1215 is connected to both sides of the mounting position 1213. The first positioning strip 1215 abuts against the first through hole 1235. A second positioning strip 1216 extending toward the first hub portion 1211 is provided on one side of the fixing position 1214 close to the first hub portion 1211. The second positioning strip 1216 is connected to both sides of the fixing position 1214. The second positioning strip 1216 abuts against both sides of the periphery of the plugging portion 1234.

[0042] In this embodiment, the mounting position 1213 and the fixing position 1214 are arranged adjacent to each other. The butting portion 1233 abuts against the side of the mounting position 1213 and the fixing position 1214 away from the first hub portion 1211. Through the butting of the butting portion 1233, the stability of the connection between the blade 123 and the mounting position 1213 can be improved. At the same time, the setting of the butting portion 1233 also increases the strength of the blade 123.

[0043] In this embodiment, a support bar 1217 is connected between the first hub portion 1211 and the first ring portion 1212. The support bar 1217 is arranged between the mounting position 1213 and the fixing position 1214. The support bar 1217 is used to support the plugging portion 1234. Through the support of the support bar 1217, the stability of the plugging portion 1234 is enhanced. In order to better position the blade 123, the height of the support bar 1217 is less than the heights of the first positioning strip 1215 and the second positioning strip 1216.

[0044] In this embodiment, a plurality of second reinforcing ribs 1218 are provided on the outer side of the first hub portion 1211. By providing the second reinforcing ribs 1218, the strength of the first hub portion 1211 can be increased, thereby increasing the stability of the connection between the first hub 121 and the second hub 122, and thus improving the stability of the fan blade assembly 12. A shaft hole 1224 is provided in the middle of the second hub portion 1221. The shaft hole 1224 is connected to the motor.

[0045] Working principle of the present invention: When it is necessary to install a floor fan, first, install the fan blade assembly 12. Specifically, insert the first through hole 1235 on the plug-in portion 1234 into the installation position 1213. At this time, the abutting top portion 1233 abuts against the outer side of the first ring portion 1212, and the first positioning strip 1215 abuts against the inner side of the first through hole 1235. Through the cooperation of the first through hole 1235 and the first positioning strip 1215, the connecting portion 1232 is positioned to prevent the plug-in portion 1234 from moving. The second positioning strip 1216 abuts against both sides of the outer periphery of the plug-in portion 1234, further defining the plug-in portion 123 4, preventing the plug-in portion 1234 from shifting, further playing a positioning role, the support bar 1217 supports the plug-in portion 1234, and enhances the stability of the plug-in portion 1234. After the connecting portion 1232 is positioned, the second hub portion 1221 of the second hub 122 is threadedly connected with the first hub portion 1211, and the first hub 121 and the second hub 122 are locked. At this time, the first ring portion 1212 is tightly attached to the outside of the second ring portion 1222, and the second hub body 1223 presses the plug-in portion 1234, locking the plug-in portion 1234 in the first hub 121. At this point, the installation of the fan blade assembly 12 is completed.

[0046] Second, the fan blade assembly 12 is connected to the motor, which may be a threaded connection.

[0047] Third, the buckling portion 1012 is buckled with the buckling hole 1022, and the first protrusion 1011 is aligned with the second protrusion 1021. At this point, the installation of the mesh cover 11 is completed.

[0048] Fourth, slightly pry open the columns 22 on both sides of the floor seat body 21, insert the second through hole 221 on the column 22 into the stud 103 of the fan head 1, and insert the nut sleeve 104 into the stud 103. At this time, the first cylinder 1041 of the nut sleeve 104 is threadedly connected with the stud 103, and the first cylinder 1041 and the stud 103 are locked by rotating the handle 1044 on the nut sleeve 104. Since there is a gap between the nut sleeve 104 and the mesh cover 11, and the second through hole 221 has a limiting protrusion 222 at one end close to the mesh cover 11, the limiting protrusion 222 in the second through hole 221 is limited in the gap between the nut sleeve 104 and the mesh cover 11, so that the column 22 is locked by the nut sleeve 104, and then the floor seat 2 is connected to the fan head 1. At this point, the installation of the floor fan is completed.

[0049] When disassembly is required, the first cylinder 1041 can be separated from the stud 103 by rotating the wrench 1044 on the nut sleeve 104. Remove the nut sleeve 104, and move the column 22 away from the stud 103, then the separation of the lying-on-the-ground base 2 and the fan head 1 can be achieved. Then separate the fastening part 1012 from the fastening hole 1022, remove the front grille 101, separate the fan blade assembly 12 from the motor, loosen the second hub part 1221 of the second hub 122, and separate the first hub 121 from the second hub 122, then the blade 123 can be removed to achieve the disassembly of the fan blade assembly 12.

[0050] The structure of the present invention is simple, the connection is firm, the disassembly and assembly are convenient and fast, and it can save space and facilitate transportation or storage.

[0051] In the present invention, when orientation words appear, for the orientation words, it is for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as limiting the specific protection scope of the present invention.

[0052] In the present invention, unless otherwise clearly defined and limited, when terms such as "arranged on", "connected", "coupled" appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can also be a mechanical connection; it can be directly connected, or connected through an intermediate medium, and can be internally connected and communicated between two elements. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0053] In the present invention, unless otherwise specified and limited, when the first feature is "above" or "below" the second feature, it may include the direct contact between the first feature and the second feature, or may include the situation where the first feature and the second feature are not in direct contact but in contact through other features between them. Moreover, when the first feature is "above" the second feature, it includes that the first feature is directly above and obliquely above the second feature, or simply means that the height of the first feature is higher than that of the second feature; when the first feature is "below" the second feature, it includes that the first feature is directly below and obliquely below the second feature, or simply means that the height of the first feature is lower than that of the second feature.

[0054] Without conflict, the above-mentioned embodiments and the features in the embodiments can be combined with each other.

[0055] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than limiting the protection scope of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the essence and scope of the technical solutions of the present invention.

Claims

1. A floor fan, characterized in that, It includes a fan head and a floor-standing base. The fan head is movably connected to the floor-standing base. The fan head includes a grille, a fan blade assembly, and a motor. The fan blade assembly is disposed inside the grille and is connected to the motor. The grille includes a front grille and a rear grille. First protrusions are provided on both sides of the front grille, and second protrusions are provided on both sides of the rear grille. The first protrusions and the second protrusions are combined to form a stud. The floor-standing base includes a floor-standing base body and a column. The column is connected to both sides of the floor-standing base body. The studs on both sides of the grille pass through the column and are connected to a nut sleeve. The fan blade assembly includes a first hub, a second hub, and a plurality of blades. The first hub includes a first hub portion and a first ring portion. The blades are detachably connected to the first ring portion. The second hub includes a second hub portion, a second ring portion, and a second hub body. The second hub portion is threadedly connected to the first hub portion. The blades are clamped between the first ring portion and the second ring portion. The blade includes a blade body and a connecting portion. The connecting portion is connected to one end of the blade body. The connecting portion includes a abutting top portion and a plugging portion. A first through hole is provided on the plugging portion. The first ring portion includes a plurality of mounting positions and a plurality of fixing positions. The plugging portion is connected to the mounting position through the first through hole. A first positioning strip extending towards the first hub portion is provided on one side of the mounting position close to the first hub portion. The first positioning strip is connected to both sides of the mounting position. The first positioning strip abuts against the first through hole. A second positioning strip extending towards the first hub portion is provided on one side of the fixing position close to the first hub portion. The second positioning strip is connected to both sides of the fixing position. The second positioning strip abuts against the outer periphery of both sides of the plugging portion.

2. The floor fan according to claim 1, wherein A second through hole is provided on the column. The stud passes through the second through hole and is threadedly connected to the nut sleeve.

3. The floor fan according to claim 2, characterized in that, The nut sleeve includes a first cylinder and a second cylinder. The first cylinder and the second cylinder are connected by a first reinforcing rib. The first cylinder is threadedly connected to the stud. A limiting protrusion is formed at one end of the second through hole close to the grille.

4. The floor fan according to claim 1, characterized in that, A plurality of fastening portions are further provided on the front grille, and a plurality of fastening holes are further provided on the rear grille. The fastening portions are fastened to the fastening holes. The front grille and the first protrusions are integrally formed, and the rear grille and the second protrusions are integrally formed.

5. The floor fan according to claim 1, wherein, The second ring portion is located inside the first ring portion.

6. The floor fan according to claim 1, characterized in that, The mounting position and the fixing position are adjacent to each other. The abutting top portion abuts against one side of the mounting position and the fixing position away from the first hub portion.

7. The floor fan according to claim 1, characterized in that, A support strip is connected between the first hub portion and the first ring portion. The support strip is disposed between the mounting position and the fixing position and is used to support the plugging portion.

8. The floor fan according to claim 7, characterized in that, A plurality of second reinforcing ribs are provided on the outer side of the first hub portion. A shaft hole is provided in the middle of the second hub portion. The shaft hole is connected to the motor.

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