JP3206932U - Stand fan head-up structure and stand fan - Google Patents

Abstract

The present invention provides a stand fan head elevation structure that has a stable connection structure, a strong support force, and that can easily achieve an elevation of a fan head in a large angle range. An elevator movable assembly is attached to an upper end of the stand support holder, the elevator movable assembly includes an elevation bracket 2 for attaching an electric fan head structure, and the elevation bracket has two side support plates. A first rotating shaft and a second rotating shaft are fixedly attached to the two side support plates, respectively, and the first rotating shaft and the second rotating shaft are movably attached to the stand support holder, The raising / lowering movable assembly further includes a raising / lowering motor 3 for controlling forward / reverse rotation of the first rotating shaft, and an output end of the raising / lowering motor is transmission-connected to the first rotating shaft via the transmission assembly 4, The rotating shaft rotates to move the lifting bracket up and down. [Selection] Figure 1

Description

The present invention relates to a stand fan, and more particularly to a head elevation structure.

Most of the conventional stand fans have only the function of rotating in the horizontal direction, and since they can no longer meet the user's demand, products that can raise the fan head up and down are gradually appearing on the market, The structure that realizes the raising / lowering motion of the fan head is generally provided by adding one metal shaft centered with a work groove at the lower end of the lifting motor housing and placing the metal shaft center in the motor fixing member (neck). Insert a screw with no thread at the top of the neck into the center of the metal groove to prevent the head from being pulled up, and fix one L-shaped iron piece to the neck, The L-shaped iron piece has an angle positioning hole, and a small spring and steel ball are added between the neck and the L-shaped iron piece, and the angle is adjusted step by step. 1 sheet Insert the ring, put one end of the spring on the L-shaped iron piece, engage the other end in the neck, the elevating spring provides support elasticity to prevent the head from hanging down, It is realized by a small spring and friction between the steel ball and the L-shaped iron piece, and such an elevation structure has a weak connection, has a limited support force, and has a lower reach range.

The technical problem to be solved by the present invention is to provide an improved stand fan head elevation structure and stand fan.

The technical solution adopted by the present invention to solve the technical problem includes a stand support holder, and the movable elevator assembly is attached to the upper end of the stand support holder, and the movable elevator assembly attaches the fan head structure. The lifting bracket includes two side support plates, and the first rotation shaft and the second rotation shaft are fixedly attached to the two side support plates, respectively, and the first rotation is performed. A shaft and a second rotating shaft are movably attached to the stand support holder, and the lifting movable assembly further includes a lifting motor for controlling forward and reverse rotation of the first rotating shaft, and an output end of the lifting motor is A transmission assembly is connected to the first rotary shaft via a transmission assembly, and the first rotary shaft rotates to drive the raising / lowering bracket to move up and down. It is a stand fan head elevation structure.

In the above-described stand fan head elevation structure, the first bushing plate and the second bushing plate are installed on the upper end of the stand support holder, and the first rotating shaft and the second rotating shaft are respectively in the lateral direction. Are mounted in the first bushing plate and the second bushing plate.

In the above-described stand fan head elevation structure, the elevation motor is fixed to the first bushing plate, the transmission assembly includes a gear and an arc rack that mesh with each other, and the gear is transmitted to the output end of the elevation motor. Connected, the arc-shaped rack is fixed to the first rotating shaft.

In the above-described stand fan head-elevation structure, a torsion spring for limiting the position to the second rotating shaft is fitted and installed, one end of the torsion spring is connected to a second bushing plate, and the torsion spring Are connected to corresponding side support plates.

In the above-described stand fan head elevation structure, a first position limiting block protruding from the first rotation shaft is installed, and a range of motion of the first position limiting block is limited to the first bushing plate. For this purpose, a first position limiting groove is provided.

In the above-described stand electric fan head-elevating structure, a second position limiting block protruding on a corresponding side support plate of the second rotating shaft is installed, and a second position limiting is performed on the second bushing plate. A second position limiting groove for limiting the range of motion of the block is provided.

In the above-described stand fan head elevation structure, the elevation angle range value of the elevation bracket is from a downward depression angle of 10 degrees to an upward elevation angle of 90 degrees.

The stand fan head elevation structure according to any one of the above, wherein the elevation bracket includes an end plate installed between two side support plates, and a drive motor is attached to the inner side of the end plate. A stand fan in which a fan head is attached to the outside of the end plate, and an output end of the drive motor is transmission-connected to the fan head.

When the technical solution of the present invention is implemented, at least the following useful effects are obtained. A motor is used to drive the rotating shaft to rotate forward and backward, and further, transmitted to a lifting bracket with a fan head mounted, realizing the lifting motion of the fan head, stable connection of structure, strong support force, and fan It is easy to realize the elevation in the large angle range of the head.

Hereinafter, the present invention will be further described with reference to the accompanying drawings and embodiments.

It is a schematic diagram of the elevation structure of this utility model. It is the schematic diagram 1 of the elevation bracket of this utility model. FIG. 3 is a schematic diagram 2 of a lifting bracket of the utility model. It is a structure schematic diagram of the upper end of the stand support holder of this utility model. It is a schematic diagram of the stand fan of this utility model.

In order that the technical features, objects and advantages of the present invention may be more clearly understood, specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

1-4, a stand fan head elevation structure as shown in FIGS. 1 to 4 includes a stand support holder 1, and an elevator movable assembly is attached to an upper end of the stand support holder 1, and the elevator movable assembly is used for attaching a fan head structure. Including the elevation bracket 2, the elevation bracket 2 includes two side support plates 20, and the first rotation shaft 5 and the second rotation shaft 6 are fixedly attached to the two side support plates 20, respectively. The first rotating shaft 5 and the second rotating shaft 6 are movably attached to the stand support holder 1, and the lifting / lowering assembly 3 further controls the forward / backward rotation of the first rotating shaft 5. And the output end of the raising / lowering motor 3 is connected to the first rotating shaft 5 via the transmission assembly 4, and the first rotating shaft 5 is rotated to rotate the raising / lowering bracket. Vertically to an elevating movement the door 2 is driven.

The raising / lowering motor 3 is started and the first rotating shaft 5 is driven to rotate forward and reversely under the transmission operation of the transmission assembly 4 so that the first rotating shaft 5 is fixed to the raising / lowering bracket 2. The elevation bracket 2 for attaching 11 also rotates with it, and the second rotating shaft 6 rotates synchronously under the transmission of the elevation bracket 2. The purpose of installing the two rotating shafts is to strengthen the support action to the elevation bracket 2 and to achieve an effect of balancing and stabilizing when the fan head 11 is elevated.

In some embodiments, a first bushing plate 8 and a second bushing plate 9 are installed at the upper end of the stand support holder 1, and the first rotating shaft 5 and the second rotating shaft 6 are respectively in the lateral direction. Are attached in the first bushing plate 8 and the second bushing plate 9. Each of the two rotating shafts has a corresponding bushing plate to ensure the stability of the mounting structure and the balance of operation. Further, the rotating shaft is attached in the horizontal and horizontal directions, and when the forward / reverse rotation is performed, the up-and-down bracket 2 interlocked therewith is rotated up and down.

In some embodiments, the elevating motor 3 is fixed to a first bushing plate 8, and the transmission assembly 4 includes an intermeshing gear and an arc rack 40, and the gear is transmitted to the output end of the elevating motor 3. Connected, the arc-shaped rack 40 is fixed to the first rotating shaft 5. The gear and the arc-shaped rack 40 have a transmission structure, the transmission connection is stable, and the elevation bracket 2 can be supported to rotate at a wide range angle.

In some embodiments, a torsion spring 7 for limiting the position to the second rotating shaft 6 is externally installed, and one end of the torsion spring 7 is connected to a second bushing plate 9. Are connected to corresponding side support plates 20. The action of the torsion spring 7 is to prevent the elevation bracket 2 from hanging down automatically due to the weight of the electric fan head 11 using its own elasticity.

In some embodiments, a first position limiting block 50 protruding from the first rotating shaft 5 is installed to limit the range of motion of the first position limiting block 50 to the first bushing plate 8. The first position limiting groove is installed, and the second position limiting block 60 protruding from the corresponding side support plate 20 of the second rotating shaft 6 is installed, and the second bushing plate 9 has a second A second position limiting groove 10 for limiting the range of motion of the position limiting block 60 is provided. The position-limiting block and the position-limiting groove as described above ensure that the elevation bracket 2 rotates within a certain angle range. The position-limiting groove structure has a protrusion stop structure at both ends, and the center is This means that it is a relatively groove-forming groove, and when each position-limiting block rotates with the corresponding rotating shaft, the two end portions of the position-limiting groove are finally touched and stopped. Since the rotation cannot be performed, the rotation range of the rotation shaft is limited to assist, and the elevation angle of the elevation bracket 2 is suitably controlled. The angle is generally 10 degrees downward to 90 degrees upward (see The horizontal and horizontal directions are limited to 0 degree).

In the stand fans using the above-described various stand fan head-elevating structures, the elevating bracket 2 includes an end plate installed between two side support plates 20, and a drive motor is attached to the inner side of the end plate. A fan head 11 is attached to the outside of the end plate, and an output end of the drive motor is connected to the fan head 11 by transmission.

The above are merely preferred embodiments of the present invention, and are not intended to limit the present invention. Various modifications, combinations and changes may be made to the present invention by those skilled in the art. Any amendments, modifications, etc. made within the spirit and principle of the present invention should be included in the claims of the present invention.

DESCRIPTION OF SYMBOLS 1 Stand support holder 2 Lifting bracket 20 Side support plate 3 Lifting motor 4 Transmission assembly 40 Arc-shaped rack 5 1st rotating shaft 50 1st position limitation block 6 2nd rotating shaft 60 2nd position limitation block 7 Torsion Spring 8 First bushing plate 9 Second bushing plate 10 Second position limiting groove 11 Fan head

Claims (8)

A stand fan head raising / lowering structure including a stand support holder, wherein an elevation movable assembly is attached to an upper end of the stand support holder, and the elevation movable assembly includes an elevation bracket for attaching a fan head structure, the elevation bracket Including two side support plates, a first rotation shaft and a second rotation shaft are fixedly attached to the two side support plates, respectively, and the first rotation shaft and the second rotation shaft are movable. Mounted on the stand support holder, the lifting movable assembly further includes a lifting motor for controlling forward / reverse rotation of the first rotating shaft, and an output end of the lifting motor is connected to the first rotating shaft via the transmission assembly. A stand fan, wherein the first rotating shaft is rotated to drive the raising / lowering bracket so as to move up and down. Machine head elevation structure. A first bushing plate and a second bushing plate are installed at an upper end of the stand support holder, and the first rotating shaft and the second rotating shaft are respectively in the lateral direction, the first bushing plate and the second bushing plate. The stand fan head elevation structure according to claim 1, wherein the stand fan head elevation structure is mounted inside. The elevating motor is fixed to a first bushing plate, the transmission assembly includes a gear and an arc rack that mesh with each other, the gear is transmission-connected to an output end of the elevating motor, and the arc rack is a first rotation. The stand fan head elevation structure according to claim 2, wherein the structure is fixed to a shaft. A torsion spring for limiting the position to the second rotating shaft is fitted and installed, one end of the torsion spring is connected to a second bushing plate, and the other end of the torsion spring is connected to a corresponding side support plate. The stand electric fan head-elevation structure according to claim 3, wherein the structure is connected. A first position limiting block protruding from the first rotation shaft is installed, and a first position limiting groove for limiting the range of motion of the first position limiting block is installed in the first bushing plate. The stand electric fan head elevation structure according to claim 4. A second position limiting block projecting from a corresponding side support plate of the second rotation shaft is installed, and a second position limiting block is configured to limit a movement range of the second position limiting block to the second bushing plate. 6. The stand electric fan head elevation structure according to claim 5, wherein a position limiting groove is provided. 7. The stand fan head elevation structure according to claim 6, wherein the elevation angle range value of the elevation bracket is a downward depression angle of 10 degrees to an upward elevation angle of 90 degrees. A stand electric fan head raising / lowering structure according to any one of claims 1 to 7, wherein the elevation bracket includes an end plate installed between two side support plates, and a drive motor is provided inside the end plate. A stand fan, wherein a fan head is attached to the outside of the end plate, and an output end of the drive motor is connected to the fan head in transmission.

Images