CN107143515B

CN107143515B - Inner upright post pipe for desk fan and desk fan

Info

Publication number: CN107143515B
Application number: CN201710448443.0A
Authority: CN
Inventors: 余勇; 彭飞; 徐玮; 张稳军; 吴永强; 康瑞祥; 刘维亮; 严凤喜
Original assignee: Midea Group Co Ltd; GD Midea Environment Appliances Manufacturing Co Ltd
Current assignee: Midea Group Co Ltd; GD Midea Environment Appliances Manufacturing Co Ltd
Priority date: 2017-06-14
Filing date: 2017-06-14
Publication date: 2023-07-07
Anticipated expiration: 2037-06-14
Also published as: CN107143515A

Abstract

The invention belongs to the field of installation of floor fans, and particularly relates to an inner upright post pipe for a floor fan and the floor fan. The lower end of the column body of the inner column for the desk fan is provided with a spring plate structure, the spring plate structure comprises more than one spring plate, the spring plate rebounds in the direction of outward radiation of the column body, and the outer side surface of the spring plate is provided with more than one guide rail groove for accommodating a guide rail of the column body of the outer column for the desk fan; the guide rail groove is parallel to the extending direction of the inner upright tube. The elastic sheet rebounds in the direction of outward radiation of the column body, when the inner vertical pipe is inserted into the outer column pipe, the elastic sheet is extruded into the column body, and after the elastic sheet stretches into the outer column pipe, the elastic sheet is outwards supported to prop against the inner side surface of the outer column pipe, so that the position fixing of the inner column pipe and the outer column pipe is improved. The elastic sheet is provided with the guide rail groove which plays a role in guiding up-and-down movement, and the guide rail groove is tightly attached to the guide rail due to the fact that the elastic sheet is externally supported. Compared with the prior art, the structure directly processes on the inner upright tube, omits a tube plug and a screw, and has the advantages of convenient processing and lower cost.

Description

Inner upright post pipe for desk fan and desk fan

Technical Field

The invention relates to the field of installation of a floor fan, in particular to an inner upright post pipe for the floor fan and the floor fan.

Background

The current commercial direct current platform floor fan, its elevating system comprises interior stand pipe 1, coil spring 3, outer stand pipe 4, outer joint subassembly 2 (outer joint, spring 6, button 5), pipe plug 01, screw (with pipe plug 01 locking on interior stand pipe 1), current elevating system concrete exploded view see fig. 1, the assembly drawing see fig. 2 and 3, outer joint subassembly 2 cover is in the upper end of stand pipe 1, press interior stand pipe 1, the wane on the button 5 retreats, wane and interior stand pipe 1 release, interior stand pipe 1 can reciprocate. The inner upright post pipe 1 is arranged on the outer upright post pipe 4, the pipe plug 01 is sleeved on the inner upright post pipe 1, the pipe plug 01 is fixed on the inner upright post pipe 1 through screws, guide rail grooves 02 are formed in the left side and the right side of the pipe plug 01, guide rails on the two sides of the outer upright post pipe 4 are clamped into the guide rail grooves 02, the inner upright post pipe 1 is enabled to smoothly lift up and down through sliding of the guide rails in the guide rail grooves 02, and when the inner upright post pipe 1 rises to the highest point, the pipe plug 01 prevents the inner upright post pipe 1 from falling off from the outer upright post pipe 4. The installation of the pipe plug 01 is complex in the production process, the pipe plug needs to be fixed on the inner upright pipe 1 by screwing, the whole lifting mechanism is complex, parts are more, the production process is complex, and the cost is high.

Disclosure of Invention

First, the technical problem to be solved

The invention aims to provide an inner stand column pipe for a table fan and the table fan, which solve the problem of more parts in the production of the stand column of the existing table fan.

(II) technical scheme

In order to solve the technical problems, the invention provides an inner stand column pipe for a desk fan, wherein the lower end of a column body of the inner stand column pipe is provided with a spring plate structure, the spring plate structure comprises more than one spring plate, the spring plate rebounds in the direction of outward radiation of the column body, and the outer side surface of the spring plate is provided with more than one guide rail groove for accommodating a guide rail of the outer stand column pipe for the desk fan; the guide rail groove is parallel to the extending direction of the inner upright tube.

In some embodiments, it is preferable that the elastic sheet is provided with an anti-falling protrusion to be clamped into an anti-falling groove on the inner side wall of the stand column pipe outside the desk fan.

In some embodiments, it is preferable that the anti-falling protrusion is disposed at one end of the guide rail groove.

In some embodiments, it is preferable that the drop-preventing protrusion is disposed at the uppermost guide rail groove when the guide rail grooves are plural.

In some embodiments, preferably, the anti-falling protrusion includes: the anti-falling device comprises a highest point anti-falling protrusion and a lowest point anti-falling protrusion, wherein the highest point anti-falling protrusion is arranged at the lower end of the guide rail groove, and the lowest point anti-falling protrusion is arranged at the upper end of the guide rail groove.

In some embodiments, it is preferable that the plurality of guide grooves accommodating the same guide rail are arranged in a vertical position.

In some embodiments, it is preferable that the number of guide grooves accommodating the same guide rail is two.

In some embodiments, it is preferable that the lower end of the shaft is split from the central axis into two or more cylindrical petals, which constitute the elastic pieces.

In some embodiments, it is preferred that all of the cylindrical petals are the same shape.

In some embodiments, it is preferable that the elastic piece extends downward from a portion of a sidewall of the shaft.

In some embodiments, it is preferable that all the elastic pieces are uniformly distributed in a circumferential direction surrounded by all the elastic pieces.

In some embodiments, preferably, the number of the elastic sheets is two, and the elastic sheets are symmetrical with each other by taking the central axis of the inner upright post as a symmetry axis.

The invention also provides a table fan which comprises the inner stand column pipe for the table fan.

(III) beneficial effects

According to the technical scheme provided by the invention, the elastic sheet structure is processed at the lower end of the column shaft of the inner column tube, the elastic sheet rebounds in the direction of outward radiation of the column shaft, when the inner column tube is inserted into the outer column tube, the elastic sheet is extruded into the column shaft, and after the inner column tube is stretched into the outer column tube, the elastic sheet is outwards supported to prop against the inner side surface of the outer column tube, so that the position fixing of the inner column tube and the outer column tube is improved. On the other hand, the elastic sheet is provided with a guide rail groove which plays a role in guiding up-and-down movement, and the elastic sheet is externally supported, so that the guide rail groove is tightly attached to the guide rail. Compared with the prior art, the structure directly processes on the inner upright tube, omits a tube plug and a screw, and has the advantages of convenient processing and lower cost.

Drawings

FIG. 1 is an exploded view of a prior art table fan;

FIG. 2 is an assembled schematic view of FIG. 1;

FIG. 3 is a schematic view in the direction A-A of FIG. 2;

FIG. 4 is an exploded view of an inner riser and an outer riser in one embodiment of the present invention;

FIG. 5 is an assembled schematic view of FIG. 4 according to the present invention;

FIG. 6 is a schematic view in the direction A-A of FIG. 5;

FIG. 7 is a schematic view of the lower end of an inner column tube according to an embodiment of the present invention;

FIG. 8 is a schematic view illustrating the structure of the front view angle of the inner pillar tube according to an embodiment of the present invention;

FIG. 9 is a schematic view of the direction of FIG. 8B-B;

fig. 10 is a schematic side view of the inner pillar tube of fig. 8.

Note that: 1 an inner upright tube; 2 an outer joint assembly; 3, coil springs; 4, an outer upright post tube; 01 a pipe plug; 02 pipe plug guide rail groove; 5, pressing a key; 6, a spring; 11 guide rail grooves; 12, tooth grooves of the inner upright posts; 41 outer inner column tube guide rails; 7, the highest point is anti-falling convex; 8, a lowest point anti-drop bulge; 9 shrapnel.

Detailed Description

The following describes in further detail the embodiments of the present invention with reference to the drawings and examples. The following examples are illustrative of the invention and are not intended to limit the scope of the invention.

In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The terms "first", "second", "third", "fourth" do not represent any sequence relationships, and are merely for convenience of description. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art. The "current" is the time when an action is performed, and a plurality of current occurs in the text, which are all recorded in real time as time passes.

Based on the problems of complex processing and multiple parts of the inner column tube of the existing table fan, the invention provides the inner column tube for the table fan and the table fan.

The product, method, etc. will be described in detail below by means of basic designs, extended designs, and alternative designs.

The invention provides an inner stand column pipe for a desk fan, as shown in fig. 4-10, the lower end of a column body is of a spring plate structure, the spring plate structure comprises more than one spring plate 9, the spring plate 9 rebounds in the direction of outward radiation of the column body, and more than one guide rail groove 11 is arranged on the outer side surface of the spring plate 9 so as to accommodate a guide rail 41 of the outer stand column pipe 4 for the desk fan; the guide rail groove 11 is parallel to the extending direction of the inner pillar tube 1.

The spring plate structure and the spring plate 9 have a rebound effect, and can rebound after being extruded or changed in position so as to reset as much as possible. The spring plate 9 rebounds in the direction of the outer radiation of the column shaft, and when the inner column tube 1 is installed in the outer column tube 4, the spring plate 9 is extruded towards the central shaft direction, and when the inner column tube 1 stretches into the outer column tube 4, the spring plate 9 rebounds towards the direction far away from the central shaft, so that the outer radiation of the central shaft is the preferred rebound direction, and the reset effect can be achieved.

The structure of the guide rail groove 11 is similar to the guide rail groove 11 in the original pipe plug, and the main purpose of the guide rail groove is to provide guidance for the up-and-down movement of the inner upright pipe 1, so that shaking is avoided. Since the direction of up-and-down movement of the inner pillar tube 1 is parallel to the extending direction of the inner pillar tube 1, the rail groove 11 is parallel to the extending direction.

The purpose of simplifying the production of the upper and lower lifting mechanisms of the inner upright post pipe 1 can be achieved through the structure, parts are reduced, cost is reduced, and the column shaft is integrally machined, so that the production is convenient and quick.

Based on the above basic scheme, in order to limit the inner upright tube 1 moving up and down to the target position, the elastic sheet 9 is provided with an anti-falling protrusion to be clamped into an anti-falling groove on the inner side wall of the outer upright tube 4 of the desk fan. Through the cooperation of anticreep arch and anticreep groove, impel the two fixed positions, be difficult for sliding relatively, final structural relationship is stable.

In some embodiments, in order to utilize the entire positions of the rail groove 11 as much as possible, the drop-preventing protrusion is provided at one end of the rail groove 11.

In the basic proposal, it has been mentioned that the number of the guide rail grooves 11 is more than one, and when the number of the guide rail grooves 11 is plural, since the number of the guide rails 41 is constant, the guide rail grooves 11 which normally accommodate one guide rail 41 need to be in a vertically positional relationship, in which case the drop-preventing protrusions are provided in the uppermost guide rail groove 11.

In addition, it can be understood through practical use that there are the closest distance and the farthest distance (both in terms of the center points of the inner pillar pipe 1 and the outer pillar pipe 4) between the inner pillar pipe 1 and the outer pillar pipe 4, and therefore, the drop-preventing protrusions may include the highest point drop-preventing protrusion 7 and the lowest point drop-preventing protrusion 8, the highest point drop-preventing protrusion 7 is disposed at the lower end of the guide rail groove 11, and the lowest point drop-preventing protrusion 8 is disposed at the upper end of the guide rail groove 11. The lowest point anti-drop protrusion 8 acts when the two are closest, and the highest point anti-drop protrusion 7 acts when the two are furthest.

In some embodiments, for convenience of processing, cost saving, and sufficient effect of stable guiding, the rail grooves 11 accommodating the same rail 41 may be provided in two.

For the arrangement of the spring structures, there may be various ways in different embodiments, for example:

in the first mode, the lower end of the column body is split into more than two column-shaped petals from the central shaft, and the column-shaped petals form the elastic sheet 9.

A gap exists between the adjacent cylindrical petals, and as for the outer stand pipe 4, an interference fit type connection mode is formed by means of rebound of the cylindrical petals.

The mode can refer to the building blocks of the children automobile, the axle is arranged with the wheels, the axle array is divided into a plurality of petals, the center of the wheels is provided with a mounting hole, and the axle extends into the mounting hole to form interference fit.

More detailed designs are also possible in this manner, such as: all cylindrical petals are identical in shape, and the acting forces generated by the identical shapes are more balanced. Of course, in other embodiments, the equalization forces may be different and somewhat weaker.

In the second mode, the elastic sheet 9 extends downwards from the side wall of part of the column body

This can also be understood as cutting away the lower end of the shaft leaving only the dome 9. In any case, the elastic sheet 9 is formed to have a large distance and not be formed as the lower end of the complete column. Such a dome 9 is more similar to what is shown in the figures.

In this way, a more detailed design is also possible, for example, all the clips 9 are distributed evenly around the circumference enclosed by all the clips 9. The distribution is also to achieve a balanced force. Of course, arrangements that are not uniformly distributed in other embodiments are not excluded.

In any of the above modes, the processing cost, the processing difficulty, and the like are considered. The elastic sheets 9 are suggested to be arranged in two, and the central axes of the inner upright posts are used as symmetry axes to be symmetrical with each other.

The invention also provides a table fan, which comprises the inner stand column pipe for the table fan, other structures can be used along the existing structure, and other inner stand column pipe matching structures in the future can be adopted to be assembled together into the table fan.

The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.

Claims

1. The inner stand column pipe for the desk fan is characterized in that the lower end of a column body is of a spring plate structure, the spring plate structure comprises more than one spring plate, the spring plate rebounds in the direction of outward radiation of the column body, and more than one guide rail groove is formed in the outer side surface of the spring plate so as to accommodate a guide rail of the outer stand column pipe for the desk fan; the guide rail groove is parallel to the extending direction of the inner upright post pipe; the elastic sheet is provided with an anti-falling protrusion so as to be clamped into an anti-falling groove of the inner side wall of the stand column pipe outside the desk fan, the anti-falling protrusion comprises a highest point anti-falling protrusion and a lowest point anti-falling protrusion, the highest point anti-falling protrusion is arranged at the lower end of the guide rail groove, and the lowest point anti-falling protrusion is arranged at the upper end of the guide rail groove.

2. The stand pipe for a desk fan as recited in claim 1, wherein the drop-preventing protrusion is provided in an uppermost one of the guide grooves when the plurality of guide grooves are provided.

3. The stand pipe for a desk fan as recited in claim 1, wherein there are a plurality of guide grooves for accommodating the same guide rail, and the plurality of guide grooves are vertically positioned.

4. The stand pipe for a desk fan as recited in claim 3, wherein there are two rail grooves accommodating the same rail.

5. The inner stand pipe for a desk fan as claimed in any one of claims 1 to 4, wherein the lower end of the shaft is split from a central axis into two or more cylindrical petals constituting the elastic sheet.

6. The stand pipe for a desk fan of claim 5 wherein all of said cylindrical lobes are identical in shape.

7. The stand pipe for a stand fan of any one of claims 1 to 4, wherein the elastic piece extends downward from a part of a side wall of the shaft.

8. The stand pipe for a desk fan of claim 7, wherein all the elastic pieces are uniformly distributed in a circumferential direction surrounded by all the elastic pieces.

9. The stand pipe for a desk fan as claimed in claim 7, wherein the number of the elastic pieces is two, and the elastic pieces are symmetrical with each other with a central axis of the stand pipe as a symmetry axis.

10. A stand fan comprising the inner stand pipe for a stand fan according to any one of claims 1 to 9.