Upright post with height convenient to adjust and applied to fan

Abstract

The utility model discloses a vertical column convenient to adjust height and applied to a fan, which comprises an upper connecting column, a lower connecting column and a positioning connecting piece, the top of the upper connecting column is fixedly connected with a fan body, the bottom of the lower connecting column is fixedly connected with a supporting seat, a connector is arranged at the bottom of the upper connecting column, and a connector external connecting thread is arranged at the rear section of the connector. Connecting piece inner connecting threads are arranged on the inner side of the positioning connecting piece, and the positioning connecting piece is connected to the connector rear section through matching of the connector outer connecting threads and the connecting piece inner connecting threads. The middle section of the connector is provided with a conical connecting boss, and four expansion pieces are arranged at the end, close to the connecting boss, of the positioning connecting piece. The upper connecting column is rotated, the positioning connecting piece is driven to move on the connecting head through friction force between the expansion piece and the inner wall of the inner side of the lower connecting column, the expansion piece moves along the connecting boss, the expansion piece makes full contact with the inner wall of the inner side of the lower connecting column, and therefore the upper connecting column and the lower connecting column are connected and fixed.

Description

TECHNICAL FIELD

[0001] The utility model relates to a fan field, especially a stand column for fan height adjustment. BACKGROUND

[0002] For floor fan, many of the existing floor fan stand columns for fan height adjustment do not have telescopic structure, but adjust the fan pitch angle to realize the height area of blowing, and for the fan with telescopic structure, the hovering design is relatively complex and not convenient to use, so a stand column for fan height adjustment with simple structure and easy fixation is needed. SUMMARY

[0003] The utility model discloses a stand column for fan height adjustment with simple structure and easy fixation.

[0004] The utility model provides a stand column for fan height adjustment, easy to adjust, including the upper connecting column that top with fan body fixed connection, the lower connecting column that bottom with support seat fixed connection and positioning connecting piece,

[0005] The connecting head rear section is provided with connecting head outer connecting thread, the inner side of positioning connecting piece is provided with connecting piece inner connecting thread, and the connecting head outer connecting thread is matched with the connecting piece inner connecting thread, so that the positioning connecting piece is screw connected on the connecting head rear section,

[0006] The connecting head middle section is provided with the tapered connecting boss, one end of the positioning connecting piece close to the connecting boss is provided with four expansion pieces matched with the connecting boss, and the expansion pieces are made of plastic material,

[0007] When the upper connecting column extends into the inner side of the lower connecting column, the upper connecting column is rotated, the positioning connecting piece is driven to move on the connecting head through the friction between the expansion piece and the inner wall of the inner side of the lower connecting column, the expansion piece moves along the connecting boss, the expansion piece is in full contact with the inner wall of the inner side of the lower connecting column, and the upper connecting column and the lower connecting column are connected and fixed.

[0008] Preferably, the connecting head end is further provided with an annular limiting bump for limiting the positioning connecting piece.

[0009] Preferably, a reset spring is further arranged between the limiting bump and the positioning connecting piece, and the position of the positioning connecting piece is kept through the reset spring.

[0010] Preferably, a balancing piece is further included, which is arranged on the front section of the connecting head, and the upper connecting column and the lower connecting column are prevented from being tilted when clamped by cooperation of the balancing piece and the positioning connecting piece.

[0011] Preferably, an outer shielding piece is further included, which is connected and arranged on the top of the lower connecting column in a clamped manner, and a through hole is arranged in the middle of the outer shielding piece, the upper connecting column is arranged in the lower connecting column by limiting the upper connecting column by the outer shielding piece.

[0012] The stand for conveniently adjusting the height of the fan has the following beneficial effects:

[0013] 1. Since the fan body is relatively heavy and the gravity center is not in the middle, the balancing piece is arranged, and the upper connecting column is prevented from being tilted when moving in the lower connecting column by cooperation of the balancing piece and the positioning connecting piece.

[0014] 2. The positioning connecting piece is threadedly connected on the outer side of the connecting head, the expansion piece is arranged at one end of the positioning connecting piece, and the corresponding connecting boss is arranged on the connecting head, so that the upper connecting column is arranged on the inner side of the lower connecting column by driving the positioning connecting piece to move and extruding the expansion piece through the connecting boss, and the technical effect of hovering is achieved. Compared with the existing mode, the use is more convenient and the structure is relatively simple. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a perspective view of the stand for conveniently adjusting the height of the fan of the utility model;

[0016] Figure 2 It is a connection schematic view of the upper connecting column of the stand for conveniently adjusting the height of the fan of the utility model;

[0017] Figure 3 It is a structure schematic view of the upper connecting column of the stand for conveniently adjusting the height of the fan of the utility model;

[0018] Figure 4 It is a structure schematic view of the positioning connecting piece of the stand for conveniently adjusting the height of the fan of the utility model;

[0019] Figure 5 It is a structure schematic view of the outer shielding piece of the stand for conveniently adjusting the height of the fan of the utility model;

[0020] The figure reference: 1, lower connecting column, 2, upper connecting column, 3, positioning connecting piece, 4, reset spring, 5, balancing piece, 6, outer shielding piece, 21, connecting head, 22, limiting protrusion, 23, connecting head outer thread, 24, connecting boss, 31, connecting piece inner connecting thread, 32, expansion piece, 61, outer shielding piece through hole.

[0021] The realization, functional features and advantages of the utility model will be further explained in combination with embodiments and with reference to the drawings. DETAILED DESCRIPTION

[0022] It should be understood that the specific embodiments described herein are merely intended to explain the utility model, and are not intended to limit the utility model.

[0023] Reference Figures 1 to 5 An embodiment of the utility model applied to a stand column for conveniently adjusting the height of a fan is provided:

[0024] A stand column for conveniently adjusting the height of a fan, comprising an upper connecting column 2 fixedly connected to the top of a fan body, a lower connecting column 1 fixedly connected to the bottom of a support base, an outer shielding piece 6, a reset spring 4, a positioning connecting piece 3 and a balancing piece 5.

[0025] The outer shielding piece 6 is connected to the top of the lower connecting column 1 in a clamping manner, and the outer shielding piece 6 is provided with an outer shielding piece through hole 61 through which the upper connecting column 2 passes, so that the upper connecting column 2 is positioned in the lower connecting column 1 by the outer shielding piece 6.

[0026] The upper connecting column 2 is provided with a connecting head 21 at the bottom. The balancing piece 5 is positioned in front of the connecting head 21, the connecting head 21 is provided with a connecting head outer thread 23 at the rear section, the positioning connecting piece 3 is provided with a connecting piece inner connecting thread 31 at the inner side, and the positioning connecting piece 3 is connected to the rear section of the connecting head 21 by cooperation of the connecting head outer thread 23 and the connecting piece inner connecting thread 31. The connecting head 21 is provided with a tapered connecting boss 24 at the middle section, four expansion pieces 32 adapted to the connecting boss 24 are arranged on one end of the positioning connecting piece 3 close to the connecting boss 24, and the expansion pieces 32 are provided with gaps therebetween, and the expansion pieces 32 are made of plastic material. The connecting head 21 is further provided with a ring-shaped limiting protrusion 22 for limiting the positioning connecting piece 3, and the reset spring 4 is arranged between the limiting protrusion 22 and the positioning connecting piece 3, so that the position of the positioning connecting piece 3 is kept by the reset spring 22.

[0027] When the upper connecting column 2 is arranged inside the lower connecting column 1, the positioning connecting piece 3 is driven to move on the connecting head 21 by rotating the upper connecting column 2 through the friction force between the expanding piece 32 and the inner wall of the lower connecting column 1, and the expanding piece 32 on the positioning connecting piece 3 moves along the connecting boss 24, so that the expanding piece 32 is in full contact with the inner wall of the lower connecting column 1, thereby connecting and fixing the upper connecting column 2 and the lower connecting column 1.

[0028] The above is only the preferred embodiment of the present application, and does not limit the patent range of the present application, and any equivalent structural transformation, direct or indirect application in other related technical fields by using the content of the present application specification and drawings are also included in the patent protection range of the present application.

Claims

1. A stand for conveniently adjusting the height of a fan, characterized in that, it comprises an upper connecting column fixed to the top of the fan body, a lower connecting column fixed to the bottom of the supporting base, and a positioning connecting piece; the bottom of the upper connecting column is provided with a connecting head, the rear section of the connecting head is provided with connecting head outer connecting threads, the inner side of the positioning connecting piece is provided with connecting piece inner connecting threads, the positioning connecting piece is threadedly connected to the rear section of the connecting head through cooperation of the connecting head outer connecting threads and the connecting piece inner connecting threads; the middle section of the connecting head is provided with a tapered connecting boss, four expansion pieces adapted to the connecting boss are arranged on the end of the positioning connecting piece close to the connecting boss, the expansion pieces are made of plastic material; when the upper connecting column extends into the inner side of the lower connecting column, the positioning connecting piece is driven to move on the connecting head through friction between the expansion pieces and the inner wall of the inner side of the lower connecting column by rotating the upper connecting column, the expansion pieces move along the connecting boss, the expansion pieces are in full contact with the inner wall of the inner side of the lower connecting column, thereby connecting and fixing the upper connecting column and the lower connecting column.

2. The column for easily adjusting the height of the fan according to claim 1, wherein the end of the connecting head is further provided with an annular limiting bump for limiting the positioning connecting piece.

3. The column for easily adjusting the height of the fan according to claim 2, wherein a reset spring is further arranged between the limiting bump and the positioning connecting piece, the position of the positioning connecting piece is maintained through the reset spring.

4. The column for easily adjusting the height of the fan according to claim 1, wherein a balancing piece is further arranged on the front section of the connecting head, cooperation of the balancing piece and the positioning connecting piece makes the upper connecting column and the lower connecting column not skewed when they are clamped.

5. The column for easily adjusting the height of the fan according to claim 1, wherein an outer shielding piece is further arranged on the top of the lower connecting column in a clamped manner, the outer shielding piece is provided with an outer shielding piece through hole through which the upper connecting column passes, the upper connecting column is positioned in the lower connecting column through the outer shielding piece.

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