JP3227146U - Folding fan - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a folding fan which has excellent adjustability of a blowing angle and can be easily folded and stored. A base (4), a fan body (1) installed on one side of the base, and an expansion and contraction lock mechanism (3) having one end rotatably mounted on the base and the other end mounted on the fan body. When the main body is used, the expansion lock mechanism is fixed to the base and supports the fan main body after being fixed, and the inversion lock mechanism 2 having one end attached to the fan main body and the other end attached to the expansion lock mechanism 2 When the fan body is used, the fan body and the extension lock mechanism can be locked relative to each other, or when the fan body is housed, the fan body and the extension lock mechanism are relatively rotated. And a reversal locking mechanism that enables it. [Selection diagram] Figure 1

Description

The present invention relates to the technical field of electric fans, and more particularly, to a folding fan.

Currently, various electric fans are on the market, and when a general electric fan is used, the fan body and the fixing rod are fixed relative to each other, making it difficult to adjust the blowing angle of the fan body. As a result, the electric fan cannot blow the wind to the human body as desired. Furthermore, the conventional electric fan cannot be folded and stored when not in use, occupying a large space and difficult to carry. Therefore, the conventional electric fan can no longer meet the needs of the actual application, in order to solve the above problems, the fan angle is adjustable, can be easily folded and stored, the fan is easy to carry. There is.

The object of the present invention is, in contrast to the defects and inadequacies of the prior art, the structure is compact, the fan body can be adjusted at multiple angles, and can be easily folded and stored, and the volume after folding is small, A foldable fan that has excellent adjustability of air blowing angle, can be easily folded and stored, has good portability, and has the advantages of reducing the volume of packaging material and packaging and reducing transportation costs. Is to provide.

In order to achieve the above object, the present invention adopts the following technical solutions.
The folding fan is
Base,
A fan body installed on one side of the base,
An extension lock mechanism having one end rotatably attached to the base and the other end attached to the fan body, which is fixed to the base when the fan body is used and after being fixed. A telescopic lock mechanism that supports the fan body,
An inversion lock mechanism, one end of which is attached to the fan body and the other end of which is attached to the expansion/contraction end, wherein the fan body and the expansion/contraction lock mechanism can be relatively locked when the fan body is used. Or a reversing lock mechanism for relatively rotating the fan body and the expansion lock mechanism when the fan body is housed.

A storage groove is installed in the base and/or a storage groove is installed in the fan body, and when the fan body is folded, the expansion lock mechanism and the reverse lock mechanism are inverted and folded. It may be housed in the housing groove.

The inversion lock mechanism,
A connection base fixedly attached to the fan body,
A platform head that is fixedly attached to one side of the extension lock mechanism apart from the base, and is attached to the connection base,
One end is attached to the connection base, the other end is attached to the platform head, a hinge member for rotatably mounting the platform head and the connection base,
A damping rubber ring installed between the hinge member and the platform head may be provided.

The connection base is provided with a notch having a "boiler" type structure, two hinge members are provided, and the two hinge members are attached to inner wall surfaces of the notch facing each other, respectively. Has an annular shape at one end, is hinge-connected between the two hinge members, and is fixedly attached to the expansion lock mechanism at the other end. When the fan body is housed, the fan body is a cloud in the connection base. It can be folded upside down with respect to the telescopic lock mechanism via the table head.

The expansion lock mechanism,
An extension mechanism having one end attached to the base and the other end attached to the fan body,
A locking mechanism installed between the expansion mechanism and the base, wherein the expansion mechanism is locked when the expansion mechanism is used, and the expansion mechanism is stored when the expansion mechanism is stored. And a lock mechanism that unlocks the base, and when the lock is unlocked, the expansion and contraction mechanism is inverted with respect to the base and is housed in the housing groove.

The expansion mechanism is
An inner sleeve whose hinge connecting end is rotatably attached to the base,
A telescopic rod having a fixed end mounted inside the inner sleeve and fixedly mounted on the inner sleeve, and a telescopic end mounted on the fan body may be provided.

Both sides of the hinge connection end of the inner sleeve extend outward to form a rotating shaft, and the two rotating shafts are provided on the same axis.
A storage space is installed in the base, a mounting boss is provided on an inner wall surface on one side of the storage space, and mounting shaft holes are respectively provided at positions corresponding to the two rotation shafts of the mounting boss. The size of the mounting shaft hole is adapted to the size of the two rotating shafts, and the two rotating shafts are respectively inserted into the mounting shaft holes, whereby the inner sleeve is rotated. It may be rotatably attached to the attachment boss via a shaft.

A damping gasket for increasing frictional force may be further provided on the outer periphery of the rotating shaft, and the damping gasket may be interposed between the rotating shaft and the mounting shaft hole of the mounting boss. ..

The locking mechanism is
An outer sleeve that is fitted onto the inner sleeve and that rotates or rotates with respect to the inner sleeve to lock or unlock the inner sleeve and the base;
A restriction structure installed between the inner sleeve and the outer sleeve and restricting the outer sleeve so as to move on the inner sleeve.

A lock member is installed between the outer sleeve and the base to increase a lock area between the outer sleeve and the base to enhance stability of the telescopic rod.
When the outer sleeve approaches the base while rotating with respect to the inner sleeve, the outer sleeve presses the locking member onto the base to lock the inner sleeve,
When the outer sleeve separates from the base while rotating with respect to the inner sleeve, the outer sleeve may release the lock on the inner sleeve by releasing the pressing and tightening on the lock member.

The outer surface of the inner sleeve is provided with a male screw, the inner surface of the outer sleeve is provided with a corresponding female screw, and the outer sleeve is locked to the inner sleeve by a screw structure that fits with the inner sleeve. Can be fixed.

The restriction structure is
A tightening ring that is provided on one side away from the hinge connection end of the inner sleeve, is fixed to the inner sleeve, and has an opening.
A lock ring may be provided, a part of which is inserted into the inner sleeve through the opening of the tightening ring and the remaining part of which is locked to the tightening ring.

The locking mechanism is
Equipped with a fixed head, fixed seat, adjustment seat and adjustment bolt,
A mounting chamber is installed on the rotating shaft, the fixed head is fixedly mounted in the mounting chamber, and the fixed head can move synchronously with the rotating shaft.
One end of the fixing sheet is fixedly attached to the base,
The adjustment sheet is installed between the fixed sheet and the fixed head, and/or between the fixed sheet and the adjustment bolt,
The adjustment bolt may be attached to the fixed head by penetrating the adjustment sheet and the fixed sheet, and may be used to adjust a frictional force between the fixed sheet and the fixed head.

According to the above technical solution, the beneficial effects of the present invention are as follows. By providing the reversing lock mechanism on the fan body, the fan body can realize the functions of reversing folding and multi-angle adjustment via the reversing lock mechanism. Further, since the expansion lock mechanism is further connected to the fan body, the expansion lock mechanism can realize the expansion lock function. INDUSTRIAL APPLICABILITY The present invention has a simple and compact structure, and the fan body can be folded and housed in the base through the reversing lock mechanism and the extension lock mechanism, and the volume of the folded fan is reduced and the occupied space is reduced. At the same time, it is easy to store and carry.

In order to more clearly describe the embodiments of the present invention or the technical solution of the prior art, the drawings required for describing the embodiments or the prior art will be briefly described below. Are merely some of the embodiments of the present invention, and those skilled in the art can think of other drawings based on these drawings without creative efforts.
FIG. 3 is a schematic diagram of the overall structure of Example 1 in use. FIG. 3 is a first exploded view of the first embodiment. FIG. 3 is an exploded view of the expansion lock mechanism in the first embodiment. FIG. 3 is an enlarged view corresponding to detail A in FIG. 2. FIG. 5 is a second exploded view of the first embodiment. 3 is a schematic diagram of the entire structure of Example 1 in a folded state. FIG. 3 is a schematic diagram of the overall structure of Example 2. FIG. 7 is an exploded view of Example 2. FIG. 6 is a schematic diagram of the entire structure of Example 3. FIG. 6 is an exploded view of Example 3. FIG.

Hereinafter, the present invention will be described in more detail with reference to the drawings.
These specific examples are merely for the purpose of illustrating the present invention and are not intended to limit the present invention. Those skilled in the art should read the present specification and, if necessary, make an inventive step about the present invention. No changes may be made and are covered by the Patents Act if they fall within the scope of the claims of the present invention.

Example 1
This embodiment relates to a foldable fan including a fan body 1, a reversal lock mechanism 2, an expansion lock mechanism 3 and a base 4, as shown in FIGS. 1-6.

The fan body 1 is installed on one side of the base 4. The extension lock mechanism 3 has one end rotatably mounted on the base 4 and the other end mounted on the fan body 1. When the fan body 1 is used, the expansion lock mechanism 3 is used to support the fan body 1 after being fixed to the base 4 and after being fixed. The reverse lock mechanism 2 has one end attached to the fan body 1 and the other end attached to the telescopic lock mechanism 3. When the fan body 1 is used, the reversal lock mechanism 2 enables the fan body 1 and the expansion/contraction lock mechanism 3 to be relatively locked, and when the fan body is stored, the reversal lock mechanism 2 expands/contracts with the fan body 1. The lock mechanism 3 is relatively rotatable.

As shown in FIGS. 1, 2, and 5, a storage groove 44 is installed in the base 4 and/or a storage groove 44 is installed in the fan body 1, and when the fan is folded, the expansion lock mechanism 3 and the expansion lock mechanism 3 are installed. The reversal lock mechanism 2 is reversed, folded, and accommodated in the accommodation groove 44. The base 4 is further provided with a main control circuit board 5, a rechargeable battery 6, a switch button 7, and a charging interface 8. The charging interface 8 is provided on one outer wall of the base 4, the switch button 7 is fitted on the upper surface of the mounting boss 42, and the main control circuit board 5 and the rechargeable battery 6 are mounted in the mounting boss 42. In addition, the main control circuit board 5 is electrically connected to the motor 13, the rechargeable battery 6, the switch button 7, and the charging interface 8. The above parts are prior art and are not the focus of protection of the present invention, and therefore will not be described in detail here.

As shown in FIGS. 1, 2, and 5, in the present embodiment, the base 4 has a cylindrical shape, and the upper end thereof is opened to form the accommodation space 41. A mounting boss 42 is provided on the inner wall surface on one side of the accommodation space 41. The storage groove 44 is installed in the mounting boss 42 and communicates with the storage space 41. In order to ensure stability after the fan is set, a counter weight 9 is installed inside the base 4, and the counter weight 9 is installed inside the mounting boss 42. An engagement block 15 for engaging with an edge of the accommodation space 41 is installed in the fan body 1 so that the folded fan is not separated from the base 4. In another embodiment, the storage groove 44 is installed in the fan body 1, or the storage groove 44 is partially installed in the fan body 1 and the remaining part is installed in the mounting boss 42. Good.

As shown in FIG. 5, the fan body 1 includes a front guard 11, a rear guard 12, a motor 13, and a fan blade 14. When the front guard 11 and the rear guard 12 are combined, the fan 13 and the fan blade 14 are housed. A motor 13 is fixedly provided in the rear guard 12, and a fan blade 14 is fixedly connected to the output shaft of the motor 13. The part of the fan main body 1 is a prior art and is not the focus of protection of the present invention, and therefore will not be described in detail here.

As shown in FIG. 1-5, the reversal lock mechanism 2 includes a connection base 21, a platform head 23, a hinge member 22, and a damping rubber ring 24. The connection base 21 is fixedly attached to the back surface of the fan body 1. The platform head 23 is fixedly attached to one side of the extension lock mechanism 3 apart from the base 4, and is attached to the connection base 21. The hinge member 22 has one end attached to the connection base 21 and the other end attached to the platform head 23. The hinge member 22 rotatably mounts the platform head 23 and the connection base 21. The damping rubber ring 24 is installed between the hinge member 22 and the platform head 23, and locks the fan main body 1 after being inverted.

Specifically, as shown in FIGS. 1-5, the connection base 21 is provided with a notch 211 having a “boil” type structure. Two hinge members 22 are provided, and the two hinge members 22 are attached to the inner wall surfaces of the notch 211 facing each other. The platform head 23 has an annular shape at one end, is hinge-connected between the two hinge members 22, and is fixedly attached to the telescopic lock mechanism 3 at the other end. The damping rubber ring 24 is installed at a hinge connection portion between the platform head 23 and the two hinge members 22. A circular through hole 231 is opened at the upper end of the platform head 23, and circular columns 221 are provided on the side surfaces of the two hinge members 22 facing the circular through hole 231, and the two circular columns 221 are circular through holes. One-to-one correspondence with the holes 231. The damping rubber ring 24 is interposed between the outer wall surface of the circular column 221 and the inner wall surface of the circular through hole 231, and is tightly fitted. That is, the two damping rubber rings 24 increase the radial friction when the platform head 23 rotates with respect to the two hinge members 22, so that the state after the fan body 1 is rotated is maintained. Ensure that it can be maintained.

When the fan body 1 is stored, the fan body 1 can be horizontally inverted and folded via the reversing lock mechanism 2, while when the fan body 1 is unfolded and used, the fan body 1 is Inverting on the pan head 23 via the connection base 21 connected to it, and adjusting the air blowing angle of the fan body 1 via the damping rubber ring 24 to realize the function of multi-angle adjustment of the fan body 1. You can

As shown in FIGS. 1-5, the extension lock mechanism 3 includes an extension mechanism and a lock mechanism. The expansion/contraction mechanism has one end attached to the base 4 and the other end attached to the fan body 1. The lock mechanism is installed between the telescopic mechanism and the base 4, and when the telescopic mechanism is used, the lock mechanism locks the telescopic mechanism and the base 4, and when the telescopic mechanism is stored, the lock mechanism expands and contracts. When the mechanism and the base 4 are unlocked, and the lock is released, the extension mechanism is reversed with respect to the base 4 and is housed in the housing groove 44.

As shown in FIGS. 1-5, the extension mechanism includes an inner sleeve 32 and an extension rod 31. The hinge connection end of the inner sleeve 32 is rotatably attached to the base 4. The fixed end of the telescopic rod 31 is mounted inside the inner sleeve 32 and fixedly mounted on the inner sleeve 32. The telescopic end of the telescopic rod 31 is attached to the fan body 1.

Specifically, as shown in FIG. 1-5, both sides of the hinge coupling end of the inner sleeve 32 extend outward to form a rotating shaft 34, and the two rotating shafts 34 are provided on the same axis. To be An accommodation space 41 is installed in the base 4, an attachment boss 42 is provided on an inner wall surface on one side of the accommodation space 41, and the attachment boss 42 is attached to a position corresponding to the two rotation shafts 34, respectively. A shaft hole 43 is provided. The size of the mounting shaft hole 43 is adapted to the size of the two rotating shafts 34, and the two rotating shafts 34 are inserted into the mounting shaft holes 43, respectively, so that the inner sleeve 32 passes through the rotating shaft 34. And is rotatably attached to the attachment boss 42.

As shown in FIGS. 1-5, the lock mechanism includes a lock member 37, an outer sleeve 33, and a restriction structure. The outer sleeve 33 is fitted onto the inner sleeve 32 and rotates with respect to the inner sleeve 32, whereby the inner sleeve 32 and the base 4 can be locked or unlocked. The restricting structure is installed between the inner sleeve 32 and the outer sleeve 33, and is used to restrict the outer sleeve 33 so as to move on the inner sleeve 32. The lock member 37 is mounted on the inner sleeve 32 and is located at the hinge connection end of the inner sleeve 32.

When the outer sleeve 33 approaches the base 4 while rotating with respect to the inner sleeve 32, the outer sleeve 33 presses the lock member 37 onto the base 4 to lock the inner sleeve 32, and the outer sleeve 33 is locked. When the outer sleeve 33 separates from the base 4 while rotating with respect to the outer sleeve 33, the outer sleeve 33 releases the lock on the lock member 37 and releases the lock on the inner sleeve 32.

Specifically, as shown in FIG. 1-5, a male screw is provided on the outer surface of the inner sleeve 32, and a corresponding female screw is provided on the inner surface of the outer sleeve 33. It can be locked and fixed to the inner sleeve 32 by a screw structure that fits with the sleeve 32. Since the inner sleeve 32 is provided with the lock member 37, the outer sleeve 33, the inner sleeve 32, and the telescopic rod 31 are all attached to the base when the lock member 37 is driven so that the outer sleeve 33 presses the mounting boss 42. Since it is fixed with respect to 4, the normal operation of the fan main body 1 is ensured.

As shown in FIG. 6, when the fan body 1 is not used, first, the fan body 1 is horizontally inverted and folded with respect to the expansion/contraction lock mechanism 3, and then the expansion/contraction lock mechanism is rotated around the rotation shaft 34 by the base 4. The fan main body 1 can be folded and housed on the end face of the upper end of the base 4, and the reversing mechanism and the extension lock mechanism 3 can be housed in the housing groove 44.

Further, as shown in FIG. 3, a damping gasket 35 for increasing frictional force is further provided on the outer periphery of the rotating shaft 34. The damping gasket 35 includes the rotating shaft 34 and the mounting shaft of the mounting boss 42. It is interposed between the holes 43.

Preferably, as shown in FIGS. 1-5, the telescopic rod 31 is hingedly connected to the inner wall of the hinged connecting end of the inner sleeve 32 via the hinged connecting head 38 installed at the lower end. Since the cavity of the inner sleeve 32 is larger than the size of the telescopic rod 31 in the radial direction, when the telescopic rod 31 is mounted inside the inner sleeve 32, the telescopic rod 31 is easily shaken with respect to the inner sleeve 32. In order to easily mount the telescopic rod 31 and the inner sleeve 32 and to secure the mounting stability, a limiting structure is installed between the outer sleeve 33 and the telescopic rod 31.

As shown in FIGS. 1-5, the restriction structure includes a tightening ring 39 and a lock ring 36. The tightening ring 39 is provided on one side of the inner sleeve 32 away from the hinge connection end, the tightening ring 39 is attached to the inner sleeve 32, and the opening 393 is provided. A part of the lock ring 36 penetrates the opening 393 of the tightening ring 39 and is inserted into the inner sleeve 32, and the remaining part is fixed to the tightening ring 39.

Specifically, as shown in FIG. 1-5, a first lock hole 321 and an insertion groove 322 are installed on the upper end of the inner sleeve 32, and a first lock block 391 is installed on the tightening ring 39. To be done. When the tightening ring 39 and the inner sleeve 32 are mounted, the mounting of the tightening ring 39 and the inner sleeve 32 is realized by mounting the first lock block 391 and the first lock hole 321. A second lock hole 392 is installed in the tightening ring 39, and a second lock block 361 and an insertion block 362 are provided in a protruding manner on the inner wall of the lock ring 36. When the lock ring 36 and the tightening ring 39 are mounted, first, the insertion block 362 penetrates the opening 393 and fits into the insertion groove 322, and then the second lock block 361 fits into the second lock hole 392. Therefore, the lock ring 36 and the tightening ring 39 can be mounted.

Preferably, as shown in FIG. 1-5, the telescopic rod 31 is provided with an arcuate groove 311 and the lock ring 36 is provided with an arcuate projection 363 so that the arcuate projection 363 and the arcuate groove 311 are fitted to each other. By doing so, the telescopic rod 31 and the lock ring 36 are tightly fitted, and the lock ring 36 is tightly fitted to the inner sleeve 32 via the fastening ring 39, so that the telescopic rod 31 and the inner sleeve 32 can be tightly mounted. Will be realized.

The principle of use of the present invention is as follows. When the folding fan is used, first, the engaging block 15 is disengaged from the base 4 by an external force to unlock the base 4 and the fan body 1, and then the fan body 1 is hinged to the pan head. After being driven to rotate around the head 23 and opened by an appropriate angle, the fan main body 1 is pulled obliquely upward, and the inner sleeve 32, the outer sleeve 33, the restricting structure and the lock member are rotated by the telescopic rod 31. After driving so that the telescopic rod 31 and the base 4 become vertical, the outer sleeve 33 is rotated so that the lock member 37 is attached by the outer sleeve 33 to abut the boss 42. Then, the telescopic rod 31 is locked in the vertical position, and finally, the fan body 1 is adjusted to a desired angle by the damping rubber ring 24 between the hinge member 22 and the platform head 23, and then the mounting boss is set. Then, the switch button 7 is pressed, and the folding fan blows air. When the folding fan is stored, first, the expansion rod 31 is stored, then the reversing lock mechanism 2 rotates the fan body 1, and finally, the expansion locking mechanism causes the fan body 1 and the reversing lock mechanism. 2 is rotated to be housed in the housing groove 44, and the foldable fan is locked by engaging the engaging block 15 and the base 4. The folding fan arranged in this way has excellent adjustability of the blowing angle, can be easily folded and stored, has good portability, reduces the volume of packaging material and packaging, and reduces transportation costs. Has the advantage of reducing

Example 2
The main difference between the present embodiment and the first embodiment is that, as shown in FIGS. 7 and 8, in this embodiment, one side of the rear guard 12 of the fan body 1 separated from the front guard 11 has an annular shape. A rib 45 is installed, and the annular rib 45 is integrally formed with the rear guard 12 and surrounds the rear guard 12 to form a storage chamber 46. The lock structure and the expansion/contraction mechanism are housed in a storage space composed of a storage groove 44 and a storage chamber 46.

The lock mechanism includes a fixed head 47, a fixed seat 48, an adjusting bolt 50, and an adjusting seat 49. A mounting chamber 51 is installed on the rotating shaft 34, and the fixed head 47 is fixedly mounted in the mounting chamber 51, and can be moved synchronously with the rotating shaft 34. The fixed sheet 48 has one end fixedly attached to the base 4, and the fixed sheet 48 is used for fixing the other end of the damper to the base 4. The adjustment sheet 49 is installed between the fixed sheet 48 and the fixed head 47 and/or between the fixed sheet 48 and the adjustment bolt 50. The adjustment bolt 50 penetrates the adjustment sheet 49 and the fixed sheet 48 and is screwed into the fixed head 47, and the adjustment bolt 50 is used to adjust the frictional force between the fixed sheet 48 and the fixed head 47. In this embodiment, two adjusting sheets 49 are installed, one of the adjusting sheets is located between the fixed sheet 48 and the fixed head 47, and the other adjusting sheet is the fixed sheet 48 and the adjusting bolt 50. Located between and.

Preferably, a mounting base is installed on one side of the inner wall of the base 4 close to the storage groove 44, and the fixing sheet 48 is fixedly mounted on the mounting base by two fastening screws. At the other end of the rotary shaft 34, a wire passage hole for inserting the wire spring in the telescopic rod 31 is installed.

Example 3
As a main difference between this embodiment and the first and second embodiments, as shown in FIGS. 9 and 10, in this embodiment, the lock mechanism is a combination of the first and second embodiments. The lock mechanism thus arranged can not only secure stability when the telescopic rod is fixed, but also improve the feeling of rotation and expansion and contraction of the foldable device and further enhance the user experience.

Although the technical solution of the present invention has been described above, the present invention is not limited thereto, and other modifications and equivalent replacements made by those skilled in the art to the technical solution of the present invention are within the spirit and scope of the technical solution of the present invention. Unless otherwise deviated, the scope of the claims of the present invention is included.

1, fan body 2, reversing lock mechanism 3, expansion lock mechanism 4, base 5, main control circuit board 6, rechargeable battery 7, switch button 8, charging interface 9, counterweight 11, front guard 12, rear guard 13, Motor 14, fan blade 15, engagement block 21, connection base 211, notch 22, hinge member 221, circular column 23, pan head 231, circular through hole 24, damping rubber ring 31, expansion rod 311, arcuate groove 32. , Inner sleeve 321, first lock hole 322, insertion groove 33, outer sleeve 34, rotating shaft 35, damping gasket 36, lock ring 361, second lock block 362, insertion block 363, arcuate projection 37, lock member 38, Hinge connection head 39, tightening ring 391, first lock block 392, second lock hole 393, opening 41, storage space 42, mounting boss 43, mounting shaft hole 44, storage groove 45, annular rib 46, storage chamber 47, fixing Head 48, fixed sheet 49, adjustment sheet 50, adjustment bolt 51, installation room

Claims (13)

It's a folding fan,
Base (4),
A fan body (1) installed on one side of the base (4);
An extension lock mechanism (3) having one end rotatably mounted on the base (4) and the other end mounted on the fan body (1), when the fan body (1) is used. An extension lock mechanism (3) fixed to the base (4) and supporting the fan body (1) after being fixed,
A reversing lock mechanism (2) having one end attached to the fan body (1) and the other end attached to the expandable end, the fan body (1) being used when the fan body (1) is used. ) And the expansion lock mechanism (3) can be locked relative to each other, or the fan main body (1) and the expansion lock mechanism (3) can be relatively rotated when the fan main body is housed. And a reversing lock mechanism (2). A storage groove (44) is installed in the base (4) and/or a storage groove (44) is installed in the fan body (1), and when the fan body is folded, the expansion lock mechanism (). The folding fan according to claim 1, wherein the reversing lock mechanism (3) and the reversing lock mechanism (2) are reversed and folded and housed in the housing groove (44). The reversal lock mechanism (2) is
A connection base (21) fixedly attached to the fan body (1);
A tripod head (23) fixedly attached to one side of the extension lock mechanism (3) away from the base (4) and attached to the connection base (21);
One end is attached to the connection base (21) and the other end is attached to the pan head (23), and a hinge member (for rotatably mounting the pan head (23) and the connection base (21) ( 22),
The folding fan according to claim 2, further comprising: a damping rubber ring (24) installed between the hinge member (22) and the platform head (23). The connection base (21) is provided with a notch (211) having a "bowl" structure, two hinge members (22) are provided, and the two hinge members (22) are respectively provided with the notches (21). 211), the pan head (23) has an annular shape at one end, is hinge-connected between the two hinge members (22), and the other end is the expansion lock mechanism (3). ), the fan body (1) is fixed to the expansion lock mechanism (3) via the pan head (23) of the connection base (21) when the fan body (1) is stored. The folding fan according to claim 3, wherein the folding fan can be inverted and folded. The expansion lock mechanism (3) is
An extension/contraction mechanism having one end attached to the base (4) and the other end attached to the fan body (1),
A lock mechanism installed between the extension mechanism and the base (4), wherein when the extension mechanism is used, the extension mechanism and the base (4) are locked and the extension mechanism is stored. At this time, the extension mechanism and the base (4) are unlocked, and when the lock is released, the extension mechanism is inverted with respect to the base (4) and stored in the storage groove (44). The folding fan according to claim 4, further comprising: The expansion mechanism is
An inner sleeve (32) whose hinge connecting end is rotatably attached to the base (4),
A telescopic rod (31) having a fixed end mounted inside the inner sleeve (32) and fixedly mounted on the inner sleeve (32), and a telescopic end mounted on the fan body (1). The folding fan according to claim 5. Both sides of the hinge connection end of the inner sleeve (32) respectively extend outward to form a rotation shaft (34), and the two rotation shafts (34) are provided on the same axis.
An accommodating space (41) is installed in the base (4), a mounting boss (42) is provided on an inner wall surface of the accommodating space (41) on one side, and two mounting bosses (42) are provided. A mounting shaft hole (43) is provided at a position corresponding to the rotating shaft (34), and the size of the mounting shaft hole (43) is adapted to the size of the two rotating shafts (34). The two rotating shafts (34) are respectively inserted into the mounting shaft holes (43), whereby the inner sleeve (32) is attached to the mounting boss (42) via the rotating shafts (34). The folding fan according to claim 6, wherein the fan is rotatably attached. A damping gasket (35) for increasing frictional force is further provided on the outer circumference of the rotating shaft (34), and the damping gasket (35) includes the rotating shaft (34) and the mounting boss (35). Folding fan according to claim 7, characterized in that it is interposed between the mounting shaft hole (43) of (42). The locking mechanism is
An outer sleeve (33) that locks or unlocks the inner sleeve (32) and the base (4) by being fitted onto the inner sleeve (32) and rotating with respect to the inner sleeve (32). ,
A restriction structure installed between the inner sleeve (32) and the outer sleeve (33) for restricting the outer sleeve (33) so as to move on the inner sleeve (32). The folding fan according to claim 7. To increase the lock area between the outer sleeve (33) and the base (4) between the outer sleeve (33) and the base (4) to increase the stability of the telescopic rod (31). Lock member (37) is installed,
When the outer sleeve (33) approaches the base (4) while rotating with respect to the inner sleeve (32), the outer sleeve (33) pushes the lock member (37) to the base (4). Tighten to lock the inner sleeve (32),
When the outer sleeve (33) separates from the base (4) while rotating with respect to the inner sleeve (32), the outer sleeve (33) releases the pressing and tightening to the lock member (37), Folding fan according to claim 9, characterized in that the inner sleeve (32) is unlocked. The outer surface of the inner sleeve (32) is provided with a male screw, the inner surface of the outer sleeve (33) is provided with a corresponding female screw, and the outer sleeve (33) is provided with the inner sleeve (32). The foldable fan according to claim 10, wherein the foldable fan can be locked and fixed to the inner sleeve (32) by a screw structure that fits with the inner sleeve (32). The restriction structure is
A tightening ring (39) that is provided on one side of the inner sleeve (32) away from the hinge connection end, is fastened to the inner sleeve (32), and has an opening (393).
A lock ring (36), a part of which is inserted into the inner sleeve (32) through the opening (393) of the tightening ring (39) and the rest of which is attached to the tightening ring (39); The folding fan according to claim 11, further comprising: The locking mechanism is
A fixed head (47), a fixed seat (48), an adjusting seat (49) and an adjusting bolt (50),
A mounting chamber (51) is installed on the rotating shaft (34), the fixed head (47) is fixedly mounted in the mounting chamber (51), and the fixed head (47) is Can be moved synchronously with the rotating shaft (34),
One end of the fixing sheet (48) is fixedly attached to the base (4),
The adjustment sheet (49) is installed between the fixed sheet (48) and the fixed head (47), and/or between the fixed sheet (48) and the adjustment bolt (50),
The adjustment bolt (50) penetrates the adjustment sheet (49) and the fixed sheet (48) and is attached to the fixed head (47), and the fixed sheet (48) and the fixed head (47) are connected to each other. The folding fan according to claim 7, which is used for adjusting a frictional force between the fans.

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