Rapid installation structure for ceiling fan blades

Abstract

The utility model provides a quick mounting structure for ceiling fan blades. The quick mounting structure comprises a plurality of fan blades, a plurality of auxiliary fixing plates and a radial bearing plate, a false screwing hole, at least two positioning bolt through holes and a plurality of screwing holes are formed in the head end of each fan blade; a false threaded hole, at least two positioning bolts and a plurality of threaded holes are respectively arranged on the upward surface of each auxiliary fixing plate corresponding to the false screwing hole, the positioning bolt penetrating hole and the screwing hole of the fan blade; the radial bearing plate is provided with a plurality of extending pieces in a radial mode, a long through hole, at least two T-shaped through holes and a plurality of screw fixing holes are formed in the positions, corresponding to the false screw fixing holes, the positioning bolt through holes and the screw fixing holes of the fan blades, of each extending piece, and each T-shaped through hole extends to form a narrow hole diameter. The alignment screws have dual purposes, i.e., sliding into the extension pieces and mounting the fan blade assembly, which not only can align the extension pieces, but also can temporarily secure the assembly, so that mounting personnel can free hands to perform subsequent mounting steps.

Description

Technical Field

[0001] The utility model relates to a ceiling fan blade quick installation structure, in particular to an installation and fixation structure suitable for long fan blades. Background Art

[0002] As is known, a fan utilizes a plurality of blades with arcs and curved surfaces arranged in a spacing manner and fixed on a motor rotating shaft, and utilizes the rotation of the blades to push air to generate a large amount of gas flow, thereby achieving ventilation and heat dissipation functions.

[0003] Generally, the blades of a medium-sized fan are made of plastic and are integrally molded. However, for a large fan, each blade is usually oversized or overlong, and its components are generally made of metal to prevent breakage when subjected to stress. The assembly method is to screw or rivet each large blade onto a radial support plate, and then fix the support plate with the blades assembled on the shaft of the fan motor.

[0004] Generally, large-volume, low-speed, large-diameter ceiling industrial fans are shipped in cartons or wooden boxes. The fans are equipped with fan motors and components and are assembled on site by electricians / installers during installation.

[0005] Metal fan blades are characterized by their length and weight, requiring a sturdy structure to withstand the considerable torque generated during operation. Typically, multiple bolts, nuts or screws are used as fasteners to firmly connect the metal fan blades and covers to the blade bracket (fan arm) mounted on the fan motor. This method is to ensure that these fans can provide a sturdy and reliable mounting solution.

[0006] Please refer to Figure 1 As shown, a stereoscopic diagram of a conventional large-sized ceiling fan or a method of fixing fan blades is shown, wherein a plurality of existing fan blades 1 of the fan are assembled by using an existing auxiliary fixing plate 2 to screw the head end of each existing fan blade 1 onto each extension piece 41 of a radial support plate 4 via screws 3, wherein the head end of the existing fan blade 1 and the corresponding positions on the extension piece 41 are each provided with a number of through holes 11, 42, and the corresponding positions of the through holes of the existing auxiliary fixing plate 2 are provided with a number of threaded holes 21, and the screws 3 pass through the through holes 42, 11 of the head end of the existing fan blade 1 and the extension piece 41, and are screwed into the threaded holes 21 of the existing auxiliary fixing plate 2, thereby fixing the head end of the existing fan blade 1 onto the extension piece 41 of the radial support plate 4.

[0007] The conventional method of fixing the larger existing fan blade 1 to the radial support plate 4 extension piece 41 is that the existing fan blade 1 is large, heavy or narrow, so it is easy to shift when screwing it and it is difficult to control the screwing angle unless another person holds the rear end of the existing fan blade 1 to check and adjust the fixing angle. In other words, it is very difficult for one person to work independently.

[0008] Installing a traditional large ceiling industrial ceiling fan requires managing no less than three sets of screws and nuts, as well as metal blades and / or decorative covers on each blade. This process requires handling six small and loose parts, aligning the perforations 11 of the long blade 1 with the holes 42 on the extension piece 41 of the radial carrier plate 4, and inserting screws 3 or nuts to connect the existing fan blade 1 to the fan motor.

[0009] The weight of the existing fan blades1 with long pitch blades creates a challenge for alignment, which makes it difficult for installers, who must also operate an electric screwdriver with one hand while handling the fan blades with the other. This assembly work must be performed at a height of 10 to 15 feet above the ground, so it requires careful, patient work and balance to prevent falls. Installers may face fatigue and the risk of parts falling during assembly, and need to climb up and down to retrieve them. The process of installing 6 to 9 blades for a single ceiling fan usually takes more than an hour.

[0010] Patented solutions for quickly installing ceiling fan blades, such as US8845293B1, are found, which involve a blade with three slots extending linearly from the mounting end, three pre-attached fasteners on the blade arm, including a resiliently bendable fastener with a clip edge extending inward, another fastener forming a vertical column, and a third fastener with a lip extending outward, or, there is an embodiment with four narrow slots and four pre-attached fasteners, the method includes tilting the blade toward the mounting end so that the lip catches the third narrow slot, then lowering the blade so that the other two slots pass over the remaining fasteners, and then moving the mounting end toward the motor mounting end, causing the bendable fastener to spring back and lock the blade to the blade arm.

[0011] The known US8845293B1 case, in which the clamping method with a resiliently bendable, inwardly extending clamping edge is not suitable for large-diameter industrial ceiling fans, is due to the problem that the long and heavy metal blades operate under high torque, resulting in the inability of the clamping and rebound structure to lock the blades securely in place. As a result, there is a concern about deformation and potential failure, because the torque applied to the long blades may distort the clamping structure, causing the blades to jump out of the locking slot and possibly destroy the spring mechanism.

[0012] Taking into account the length of the fan blades and high-torque operation, the inventor of this case proposed a redesign for the quick installation of large ceiling fans. The new concept avoids the use of an elastic clip structure and instead chooses screws to firmly install and tighten the blades, ensuring a safe and reliable blade connection.

[0013] The utility model installs the method that slots are moved from blades to blade extensions, and metal-to-metal assembly is adopted and fixed with screws to ensure the strength and reliability of fan blades and blade extensions. The alignment method is changed from elastic clip structure to screws to form a steel-to-steel alignment system, which provides accuracy and strength during temporary assembly and allows hands-free operation after aligning the blade assembly. This innovative method is designed to solve the problems of structural strength and assembly accuracy, and it can provide safe, reliable and quick installation. Utility Model Content

[0014] The utility model aims to provide a ceiling fan blade quick installation structure.

[0015] The utility model provides a ceiling fan blade quick installation structure, which mainly includes a plurality of fan blades, a plurality of auxiliary fixing plates and a radial support plate;

[0016] Each fan blade has a false screw hole, at least two positioning bolt holes and several screw holes at its head end;

[0017] Each auxiliary fixing plate is provided with a false threaded hole, at least two positioning bolts and a plurality of threaded holes at the positions corresponding to the false screw holes, positioning bolt through holes and screw holes of the fan blades on the upper side;

[0018] The radial support plate has a plurality of radial extension pieces, each of which is provided with a long through hole, at least two T-shaped through holes and a plurality of screw holes corresponding to the pseudo screw holes, the positioning bolt through holes and the screw holes of the fan blades, and the T-shaped through holes extend to a narrow aperture;

[0019] A pseudo screw is passed through the pseudo screw hole of the fan blade and screwed into the pseudo threaded hole of the auxiliary fixing plate, so that the fan blade is combined with the auxiliary fixing plate, and the positioning bolt of the auxiliary fixing plate is extended upward from the positioning bolt through hole of the fan blade. After the fan blade is combined with the auxiliary fixing plate, the upwardly extended positioning bolt is inserted into the T-shaped through hole of the radial support plate extension piece, and the long through hole can be used to accommodate the nut of the pseudo screw, and the combined fan blade and the auxiliary fixing plate are pushed toward the center of the radial support plate, forcing the positioning bolt to be stuck into the narrow aperture of the T-shaped through hole for precise positioning, and then a number of screws are passed through the radial support plate extension piece and the screw holes of the fan blade, and screwed into the fixing threaded hole of the auxiliary fixing plate, so that the fan blade can be screwed and assembled on the extension piece of the radial support plate.

[0020] The utility model has the advantage that the fan blades can be easily screwed and assembled on the extension pieces of the radial carrier plate by one person, thereby improving the assembly efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 An exploded perspective view of a conventional large-size ceiling fan or existing fan blade fixing method.

[0022] Figure 2 This is an exploded perspective view of the fan blade fixing method of the utility model.

[0023] Figure 3 This is an exploded stereoscopic diagram of the fan blades and the auxiliary fixing plate of the utility model after being assembled.

[0024] Figure 4 The utility model is a three-dimensional diagram of the fan blade and the auxiliary fixing plate after being assembled.

[0025] Figure 5 This is an exploded perspective view of the fan blades and the auxiliary fixing plate of the utility model being prepared to be fixed to the radial support plate extension piece.

[0026] Figure 6 This is a three-dimensional diagram of the fan blades and the auxiliary fixing plate of the utility model being fixed to the radial support plate extension piece.

[0027] Explanation of the reference numerals: 1-existing fan blade; 11-perforation; 2-existing auxiliary fixing plate; 21-threaded hole; 3-screw; 4-radial supporting plate; 41-extension plate; 42-perforation; 5-fan blade; 51-pseudo screw hole; 52-positioning bolt perforation; 53-screw hole; 6-auxiliary fixing plate; 61-pseudo threaded hole; 62-positioning bolt; 63-threaded hole; 7-radial supporting plate; 71-extension plate; 72-long perforation; 73-T-shaped perforation; 731-narrow aperture; 74-extension plate screw hole; 8-pseudo screw; 9-screw. DETAILED DESCRIPTION

[0028] Please refer to Figure 2 As shown, the utility model provides a ceiling fan blade quick installation structure, which mainly includes a plurality of fan blades 5, a plurality of auxiliary fixing plates 6 and a radial support plate 7.

[0029] Each of the fan blades 5 is provided with a pseudo screw hole 51 , at least two positioning bolt through holes 52 and a plurality of screw holes 53 at its head end.

[0030] Each of the plurality of auxiliary fixing plates 6 is provided with a pseudo threaded hole 61 , at least two positioning bolts 62 and a plurality of threaded holes 63 at the positions corresponding to the pseudo screw holes 51 , the positioning bolt through holes 52 and the screw holes 53 of the fan blades 5 on the upper side.

[0031] The radial support plate 7 has a plurality of radial extension pieces 71 thereon. Each extension piece 71 is provided with a long through hole 72, at least two T-shaped through holes 73 and a plurality of extension piece screw holes 74 corresponding to the pseudo screw hole 51, the positioning bolt through hole 52 and the screw hole 53 of the fan blade 5. The T-shaped through hole 73 extends to a narrow aperture 731.

[0032] Please refer to Figure 3 , Figure 4 As shown, during implementation, a pseudo screw 8 is passed through the pseudo screw hole 51 of the fan blade 5 and screwed into the pseudo threaded hole 61 of the auxiliary fixing plate 6, so that the fan blade 5 is combined with the auxiliary fixing plate 6, and the positioning bolt 62 of the auxiliary fixing plate 6 is extended upward from the positioning bolt through hole 52 of the fan blade 5.

[0033] Please refer to Figure 5 , Figure 6 As shown, after the upper fan blade 5 is combined with the auxiliary fixing plate 6, the upwardly extending positioning bolt 62 is inserted into the T-shaped through hole 73 of the extension piece 71 of the radial support plate 7, and the long through hole 72 can be used to accommodate the nut of the pseudo screw 8, and the combined fan blade 5 and the auxiliary fixing plate 6 are pushed toward the center of the radial support plate 7, forcing the positioning bolt 62 to be stuck into the narrow aperture 731 of the T-shaped through hole 73 for precise positioning, and then a number of screws 9 are passed through the extension piece screw hole 74 of the extension piece 71 of the radial support plate 7 and the screw hole 53 of the fan blade 5, and screwed into the fixing threaded hole 63 of the auxiliary fixing plate 6, so that the fan blade 5 can be accurately screwed and assembled on the extension piece 71 of the radial support plate 7 easily by one person.

Claims

1. A quick installation structure for ceiling fan blades, characterized in that: It comprises a plurality of fan blades (5), a plurality of auxiliary fixing plates (6) and a radial support plate (7); Each fan blade (5) is provided with a pseudo screw hole (51), at least two positioning bolt through holes (52) and a plurality of screw holes (53) at its head end; Each auxiliary fixing plate (6) is provided with a pseudo threaded hole (61), at least two positioning bolts (62) and a plurality of threaded holes (63) at the positions corresponding to the pseudo screw holes (51), the positioning bolt through holes (52) and the screw holes (53) of the fan blades (5) on the upper side; The radial support plate (7) has a plurality of extension pieces (71) radially disposed thereon, each extension piece (71) being provided with a long through hole (72), at least two T-shaped through holes (73) and a plurality of extension piece screw holes (74) at locations corresponding to the pseudo screw holes (51), the positioning bolt through holes (52) and the screw holes (53) of the fan blades (5), and the T-shaped through holes (73) are extended to have a narrow aperture (731); A pseudo screw (8) passes through the pseudo screw hole (51) of the fan blade (5) and is screwed into the pseudo threaded hole (61) of the auxiliary fixing plate (6), so that the fan blade (5) is combined with the auxiliary fixing plate (6), and the positioning bolt (62) of the auxiliary fixing plate (6) is extended upward from the positioning bolt through hole (52) of the fan blade (5). After the fan blade (5) is combined with the auxiliary fixing plate (6), the upwardly extended positioning bolt (62) is inserted into the T-shaped through hole (73) of the extension piece (71) of the radial support plate (7), and the long through hole (72) can accommodate The nut of the pseudo screw (8) pushes the combined fan blade (5) and the auxiliary fixing plate (6) toward the center of the radial support plate (7), forcing the positioning bolt (62) to be inserted into the narrow aperture (731) of the T-shaped through hole (73) for positioning. A plurality of screws (9) pass through the extension piece screw hole (74) of the extension piece (71) of the radial support plate (7) and the screw hole (53) of the fan blade (5), and are screwed into the threaded hole (63) of the auxiliary fixing plate (6), thereby screwing the fan blade (5) to the extension piece (71) of the radial support plate (7).

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