TWM558298U - Blade swing device - Google Patents

Abstract

A fan blade oscillating device comprises a cover group, a driving member, a connecting rod, a ball bracket, and a second elbow receiving plate, wherein the outer cover group comprises a front cover and a rear cover which are oppositely arranged along an axis. The front cover has a through hole, and the driving member is rotatably coupled to the rear cover about the axis. The connecting rod is connected to the driving member and extends through the through hole toward the front cover and is rotatable by the driving member. The ball bracket includes a connecting plate portion connecting the driving member and having a first through hole. And a ball portion connecting the adapter plate portion and defining a second through hole, the first through hole and the second through hole are connected to each other and the connecting rod is passed through, and the elbow receiving plates are disposed on the front cover and Opposite each other on opposite sides of the through hole, each elbow receiving plate includes a bearing surface that abuts against the other elbow receiving plate and abuts against the spherical portion. The elbow plate is matched with the elbow plate to achieve a simple structure and easy assembly.

Description

Blade swing device

The present invention relates to a swinging device, and more particularly to a blade swinging device.

Referring to FIG. 1 and FIG. 2, a conventional fan blade swinging device disclosed in Japanese Patent No. M538549 is used for an electric fan (not shown), and the electric fan includes a blade group (not shown). The conventional blade swinging device includes an outer cover group 11, a driving member 12, a connecting rod 13, and a universal cross joint 14. The outer cover group 11 includes a front cover 111 and a rear cover 112 disposed opposite to an axis X. The driving member 12 is rotatably coupled to the rear cover 112 about the axis X. The connecting rod 13 is connected to the driving member 12 and Passing through the front cover 111 and being driven by the driving member 12 to drive the blade group to rotate, the universal cross joint 14 is connected to the front cover 111 and passes through the connecting rod 13 , and includes two fixed to the front a pivoting seat 141 of the cover 111, a swivel frame 142 rotatably coupled to the pivoting seat 141 about a first direction Y perpendicular to the axis X, and a front cover 111 disposed adjacent to the driving member 12 One side of the rotating frame 142 has a frame for the connecting rod 13 to pass through and is rotatably connected to a positioning seat 143 inside the rotating frame 142 in a second direction Z perpendicular to the first direction Y. The main body 144 and the second side are disposed opposite to the frame body 144 and are respectively pivotally connected to the pivot shaft portion 145 of the pivoting seat 141. Thereby, when the driving member 12 swings about the axis X, The connecting rod 13 is circumferentially oscillated about the axis X with the front cover 111 as a fulcrum opposite to the end of the driving member 12, thereby driving the Leaf group with respect to the outer cover 12 in a circular swing-set to further expand the range of the fan is blown.

However, the connecting rod 13 is firstly disposed on the positioning seat 143 and the positioning seat 143 is fixed to the driving member 12, and the rotating frame 142 is mounted on the positioning seat 143, and then respectively The pivoting shaft portion 145 is pivotally connected to the pivoting seats 141, and finally the pivoting seats 141 are fixed to the front cover 111. The universal joint 14 is not only complicated in assembly, but also complicated in assembly and time consuming.

Therefore, the object of the present invention is to provide a blade swinging device which is simple in structure and easy to assemble.

Therefore, the novel blade swinging device comprises an outer cover group, a driving member, a connecting rod, a ball bracket, and a second elbow receiving plate. The outer cover group includes a front cover and a rear cover which are oppositely disposed along an axis, and the front cover has a through hole. The drive member is rotatably coupled to the rear cover about the axis. The connecting rod connects the driving member and extends through the through hole toward the front cover and is rotatable by the driving member. The ball toggle plate includes an adapter plate portion connecting the driving member and having a first through hole, and a ball portion connecting the adapter plate portion opposite to the driving member and surrounding a second through hole. The first perforation and the second perforation are in communication and pass through the connecting rod. The elbow receiving plates are disposed on the front cover and opposite to each other on opposite sides of the through hole, and each of the elbow receiving plates includes a bearing surface opposite to the other elbow receiving plate and abutting against the spherical portion.

The utility model has the advantages that the connecting rod is passed through the ball bracket and the ball bracket is fixed to the driving member, and the elbow receiving plates are fixed to the front cover and the bearing surfaces are abutted In the spherical portion, the connecting rod can be circumferentially swinged around the axis with the spherical portion as a fulcrum opposite to the end of the driving member, thereby achieving the structure simple and convenient assembly.

Before the present invention is described in detail, it should be noted that in the following description, similar elements are denoted by the same reference numerals.

Referring to Figures 3, 4 and 5, an embodiment of the novel blade swinging device comprises an outer cover set 2, a drive member 3, a connecting rod 4, a ball bracket 5, and a second elbow receiving plate 6.

The outer cover set 2 includes a front cover 21 and a rear cover 22 which are oppositely disposed along an axis L. The front cover 21 has a through hole 211.

The driving member 3 is rotatably coupled to the rear cover 22 about the axis L. In the embodiment, the driving member 3 is a motor.

The connecting rod 4 is connected to the driving member 3 and extends through the through hole 211 toward the front cover 21 and is rotatable by the driving member 3.

The ball bracket 5 includes an adapter plate portion 51 that connects the driving member 3 and has a first through hole 511, and a side that connects the adapter plate portion 51 opposite to the driving member 3 and defines a first The ball portion 52 of the second through hole 521 communicates with the second through hole 521 and passes through the connecting rod 4.

The elbow receiving plates 6 are disposed on the front cover 21 and opposite to each other on opposite sides of the through hole 211, and each of the elbow receiving plates 6 includes a bearing against the other elbow receiving plate 6 and abutting against the spherical portion 52. The abutment faces 61 cooperate with the shape of the ball portion 52, and each of the bearing faces 61 has a plurality of grooves 611 surrounding the axis L. In the present embodiment, the number of the grooves 611 is two, and the grooves 611 can accommodate lubricating oil. In other embodiments, the number of the grooves 611 can also be increased as needed.

In use, the connecting rod 4 is connected to a blade group (not shown) of a fan (not shown), and the driving member 3 drives the connecting rod 4 to rotate, and the driving member 3 itself also rotates about the axis L. The ball portion 52 is sleeved on the connecting rod 4 and locked to the driving member 3, and the bearing surfaces 61 of the elbow receiving plates 6 abut against the ball portion 52 to limit the ball portion 52. Rotating between the bearing surfaces 61, when the driving member 3 is circumferentially swinged about the axis L with the ball portion 52 as a fulcrum, the connecting rod 4 can be driven opposite to the One end of the driving member 3 is circumferentially oscillated about the axis L with the ball portion 52 as a fulcrum, and the connecting rod 4 drives the blade group to rotate while swinging around the axis L. During the swinging process, The lubricating oil in the grooves 611 can reduce the friction and loss between the ball portion 52 and the bearing surfaces 61, thereby prolonging the service life of the ball bracket 5 and the elbow receiving plates 6.

In the assembly, the driving member 3 is firstly disposed on the rear cover 22 opposite to the connecting rod 4, and the connecting rod 4 connecting the driving member 3 is passed through the first through hole 511 and the second through hole 521. And the adapter plate portion 51 is locked to the driving member 3, and the supporting surfaces 61 of the elbow receiving plates 6 are locked against the spherical portion 52, and the elbow receiving plates 6 are locked to each other. Then, the connecting rod 4 is passed through the through hole 211 and the elbow receiving plate 6 is locked to the front cover 21, and finally the front cover 21 and the rear cover 22 are locked to complete assembly, compared to the previous According to the technique, the ball bracket 5 and the elbow plate 6 are obviously simple in structure and easy to assemble.

In summary, the novel blade swinging device passes the connecting rod 4 through the ball bracket 5 and fixes the ball bracket 5 to the driving member 3, and then the elbow receiving plate 6 The bearing surface 61 is pressed against the spherical portion 52, and finally the elbow receiving plates are locked to each other and then fixed to the front cover 21, so that the connecting rod 4 is opposite to the end of the driving member 3 by the spherical portion 52. The circumferential swing of the fulcrum about the axis L achieves a simple structure and is easy to assemble, so that the object of the present invention can be achieved.

However, the above is only the embodiment of the present invention, and when it is not possible to limit the scope of the present invention, all the simple equivalent changes and modifications according to the scope of the patent application and the contents of the patent specification are still This new patent covers the scope.

2‧‧‧Outer cover group
21‧‧‧ front cover
211‧‧‧through hole
22‧‧‧ Back cover
3‧‧‧ Drives
4‧‧‧ Connecting rod
5‧‧‧ ball bracket
51‧‧‧Adapter plate
511‧‧‧First perforation
52‧‧‧Sphere Department
521‧‧‧Second perforation
6‧‧‧Elbow plate
61‧‧‧ bearing surface
611‧‧‧ Groove
L‧‧‧ axis

Other features and effects of the present invention will be apparent from the following description of the drawings, wherein: FIG. 1 is a perspective view of a conventional blade swinging device; FIG. 2 is a conventional blade swinging device. Figure 3 is a perspective assembled view of an embodiment of the novel blade swinging device; Figure 4 is an exploded perspective view of the embodiment; and Figure 5 is a cross-sectional view of the embodiment.

Claims (4)

A blade swinging device comprising: an outer cover set comprising a front cover and a rear cover disposed oppositely along an axis, the front cover having a through hole; a driving member rotatably connecting the rear cover about the axis; a connecting rod connecting the driving member and extending through the through hole toward the front cover and being rotatable by the driving member; a ball bracket including an adapter plate connecting the driving member and having a first through hole And a ball portion connecting the adapter plate portion opposite to the driving member and surrounding a second through hole, the first through hole and the second through hole communicating and passing through the connecting rod; and Two elbow receiving plates are disposed on the front cover and opposite to each other on opposite sides of the through hole, and each of the elbow receiving plates includes a bearing surface opposite to the other elbow receiving plate and abutting against the spherical portion. The blade swinging device of claim 1, wherein the bearing surfaces cooperate with the shape of the ball portion. The blade swinging device of claim 2, wherein each bearing surface has a plurality of grooves. The blade swinging device of claim 3, wherein the grooves surround the axis.