Telescopic folding fan

Abstract

The utility model discloses a telescopic folding fan which comprises a base, a supporting rod and a fan head, the base comprises a base and a first connecting piece arranged on the base, the first connecting piece is provided with a limiting groove, the supporting rod comprises a telescopic rod and a second connecting piece arranged at one end of the telescopic rod in the extending direction of a rod body, and the second connecting piece is rotationally connected to the first connecting piece. The second connecting piece is provided with a limiting convex part; the fan head is rotatably arranged at one end, away from the second connecting piece, of the telescopic rod; wherein the telescopic folding fan has a contraction state, a folding state and an unfolding state, and in the contraction state, the telescopic rod can contract to drive the fan head to approach the base; in the folding state, the telescopic rod is rotationally connected to the second connecting piece of the first connecting piece so as to drive the fan head to rotate relative to the base and get close to the base; and in the unfolding state, the limiting convex part is limited in the limiting groove. According to the telescopic folding fan, on the basis that the stability is guaranteed, the storage and unfolding modes of the telescopic folding fan are simplified, and the use convenience is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fans, in particular to a telescopic folding fan. Background Art

[0002] Floor fans offer strong wind power, but their dimensions are generally large. Therefore, some floor fans are designed to be foldable or retractable, allowing them to be stored when not in use, reducing their space requirements. Existing retractable floor fans require locking their uprights and other moving parts to ensure stability between the folded and in-use positions. This is typically done through screw tightening or latching mechanisms. However, these methods require the user to separately operate the locking or unlocking mechanism before stowing the uprights and other related components, making them inconvenient for daily use. Utility Model Content

[0003] The main purpose of the utility model is to provide a telescopic folding fan, which aims to simplify the storage and deployment methods of the telescopic folding fan on the basis of ensuring stability and improving the convenience of use.

[0004] To achieve the above objectives, the present invention provides a telescopic folding fan, which comprises:

[0005] A base, comprising a base and a first connecting member, wherein the first connecting member is provided on the base and has a limiting groove;

[0006] A support rod, the support rod comprising a telescopic rod and a second connecting member, the second connecting member being provided at one end of the telescopic rod along the extension direction of the rod body, the second connecting member being rotatably connected to the first connecting member, and the second connecting member being provided with a limiting protrusion; and

[0007] a fan head, the fan head being rotatably disposed at an end of the telescopic rod away from the second connecting member;

[0008] In which, the telescopic folding fan has a retracted state, a folded state and an expanded state. In the retracted state, the telescopic rod can be retracted to drive the fan head toward the base; in the folded state, the telescopic rod drives the fan head to rotate relative to the base and approach the base by rotating the second connecting member connected to the first connecting member; in the expanded state, the limiting protrusion is limited in the limiting groove.

[0009] In one embodiment, the second connecting member is further provided with a clearance groove and an elastic protrusion provided in the clearance groove, the elastic protrusion comprising an elastic arm and an abutment block connected to each other, and an end of the elastic arm away from the abutment block is connected to a groove wall of the clearance groove;

[0010] In the expanded state, the abutment block is limited in the limiting groove.

[0011] In one embodiment, the limiting groove includes a first groove and a second groove, and the groove depth of the first groove is greater than the groove depth of the second groove;

[0012] In the expanded state, the elastic protrusion is located in the first groove, and the limiting protrusion is located in the second groove.

[0013] In one embodiment, in the expanded state, the telescopic rod extends in a vertical direction and moves the fan head away from the base, and the first connecting member is rotatably mounted on the base with the extension direction of the telescopic rod as an axis.

[0014] And / or, the extending direction of the groove body of the limiting groove is the same as the extending direction of the rod body of the telescopic rod in the expanded state.

[0015] In one embodiment, the first connecting member is provided with a rotation groove, and the limiting groove is provided on the groove wall of the rotation groove;

[0016] The second connecting member includes a rotating head and an inner sleeve connected to each other, the inner sleeve forms an inner cavity, one end of the telescopic rod extends into the inner cavity and is connected to the inner sleeve, the rotating head extends into the rotating groove and is rotatably connected to the first connecting member, and the limiting protrusion is provided on the rotating head.

[0017] In one embodiment, a ring groove is provided on a side of the rotating head facing the limiting groove, and the ring groove is arranged in a ring shape with the axis of rotation of the rotating head relative to the first connecting member as the center;

[0018] The telescopic folding fan further includes damping silica gel, which is arranged in the annular groove.

[0019] In one embodiment, the telescopic folding fan further comprises an outer sleeve, wherein the outer sleeve forms a sliding cavity, and the first connecting member and the second connecting member can extend into the sliding cavity so that the outer sleeve can slide relative to the first connecting member and the second connecting member;

[0020] In the contracted state and the expanded state, the outer sleeve is sleeved on the outer wall of the first connecting member and the outer wall of the second connecting member;

[0021] In the folded state, the outer sleeve is sleeved on the outer wall of the second connecting member.

[0022] In one embodiment, the first connecting member includes a connecting head and a stopper connected to each other, the stopper is arranged in an annular shape around the connecting head, a movable gap is formed between the stopper and the base, and the connecting head and the stopper enclose a sink;

[0023] A limiting flange is provided on one end of the outer sleeve facing the base. In the expanded state, one end of the outer sleeve extends into the sink, and the limiting flange abuts against the stop.

[0024] In one embodiment, the base comprises:

[0025] A base shell, wherein the base shell is provided with a mounting hole;

[0026] A connecting seat, the connecting seat is bolted to the base shell, and the connecting seat is provided with a rotary hole corresponding to the mounting hole; and

[0027] A ball bearing, wherein the ball bearing is disposed in the rotating hole, the outer ring of the ball bearing abuts against the hole wall of the rotating hole, and one end of the connector is connected to the inner ring of the ball bearing;

[0028] Wherein, the connecting seat and the upper cover form an installation space, the installation space is connected to the installation hole and the rotating hole, a part of the connecting head is rotatably arranged in the installation space, and the other part of the connecting head is passed through the installation hole to be rotatably connected to the second connecting member.

[0029] In one embodiment, the base further includes a gear set, which is disposed on the base surface shell and includes:

[0030] Motor;

[0031] a driving gear, the driving gear being disposed on the output shaft of the motor; and

[0032] A driven gear, the driven gear being rotatably mounted on the base housing, the driven gear being meshed with the driving gear, the rotation axis of the driven gear coinciding with the axis of the rotating hole, and the driven gear being bolted to the connecting head;

[0033] And / or, the connecting seat is further provided with a rotation groove communicating with the installation space, the first connecting member further comprises a rotating disk, the rotating disk is connected to the connecting head and the stop platform, and the rotating disk is rotatably provided in the rotation groove;

[0034] And / or, the base is further provided with a first sleeve, the connecting seat is provided with a second sleeve, the base surface shell is provided with a positioning column, and the positioning column is passed through the first sleeve and the second sleeve.

[0035] The telescopic folding fan of the utility model includes a base, a support rod and a fan head. The base includes a base and a first connecting member. The first connecting member is rotatably arranged on the base, and the first connecting member is provided with a limiting groove. The support rod includes a telescopic rod and a second connecting member. The second connecting member is arranged at one end of the telescopic rod along the extension direction of the rod body, the second connecting member is rotatably connected to the first connecting member, and the second connecting member is provided with a limiting protrusion. The fan head can be rotatably arranged at one end of the telescopic rod away from the second connecting member. The telescopic folding fan has a retracted state, a folded state and an expanded state. In the retracted state, the telescopic rod can be retracted to drive the fan head toward the base; in the folded state, the telescopic rod is connected to the second connecting member of the first connecting member by rotation to drive the fan head to rotate relative to the base and approach the base; in the expanded state, the limiting protrusion is limited in the limiting groove. When the fan is moved from the folded state to the unfolded state, or from the unfolded state to the folded state, the telescopic rod is directly rotated through the rotational connection of the first connecting member and the second connecting member, so that the telescopic folding fan can be converted between the folded state and the unfolded state. In the unfolded state, the limiting protrusion is in the limiting groove to limit the position of the telescopic rod and the fan head, so that the position of the support rod relative to the base is fixed. In the folded state, the limiting protrusion is disengaged from the limiting groove to store the support rod and the fan head. In this way, while ensuring the stability of the position of the support rod and the fan head relative to the base, the storage and deployment process of the support rod and the fan head is simplified, thereby improving the user's convenience. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0037] Figure 1 This is a structural diagram of a telescopic folding fan in an expanded state in one embodiment of the present invention;

[0038] Figure 2 This is an exploded schematic diagram of a telescopic folding fan in one embodiment of the present utility model;

[0039] Figure 3 This is a structural diagram of a telescopic folding fan in a retracted state in one embodiment of the present invention;

[0040] Figure 4 This is a structural diagram of a telescopic folding fan in a folded state in one embodiment of the present invention;

[0041] Figure 5 This is a schematic diagram of the connection structure between the base and the outer sleeve in one embodiment of the present utility model;

[0042] Figure 6 for Figure 5 A partial enlarged view of point A in the middle;

[0043] Figure 7 This is an exploded schematic diagram of a base in one embodiment of the present utility model;

[0044] Figure 8 This is a structural diagram of the first connecting member in one embodiment of the present utility model;

[0045] Figure 9 This is a partial cross-sectional schematic diagram of a first connecting member in one embodiment of the present utility model;

[0046] Figure 10 for Figure 9 A partial enlarged view of point B in the middle;

[0047] Figure 11 This is a structural diagram of the second connecting member in one embodiment of the present utility model;

[0048] Figure 12 Schematic cross-sectional view of the first connecting member and the second connecting member in one embodiment of the present invention.

[0049] 100. Telescopic folding fan; 1. Base; 11. Base; 111. Base shell; 111a. Positioning column; 111b. First sleeve; 1111. Mounting cavity; 1112. Mounting hole; 112. Connecting seat; 1121. Rotating groove; 1122. Rotating hole; 1123. Second sleeve; 113. Ball bearing; 114. Gear set; 1141. Motor; 1142. Driving gear; 1143. Driven gear; 12. First connecting member; 121. Connecting head; 1211. Rotating groove; 1212. Limiting groove ;1213, first groove;1214, second groove;122, stop;123, movable gap;124, sink;125, rotating disk;2, support rod;21, telescopic rod;22, second connecting piece;221, rotating head;221a, mounting side wall;2211, limiting protrusion;2212, giving way groove;2213, elastic protrusion;2214, elastic arm;2215, abutment block;2216, annular groove;222, inner sleeve;2221, inner cavity;3, fan head;4, outer sleeve;41, limiting flange.

[0050] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0051] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0052] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), such directional indications are only used to explain the relative position relationship, movement status, etc. between the various components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0053] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0054] To achieve the above purpose, please refer to Figures 1 to 4 、 Figures 8 to 12As shown, the utility model proposes a telescopic folding fan 100, which includes a base 1, a support rod 2 and a fan head 3. The base 1 includes a base 11 and a first connecting member 12. The first connecting member 12 is provided on the base 11 and has a limiting groove 1212. The support rod 2 includes a telescopic rod 21 and a second connecting member 22. The second connecting member 22 is provided at one end of the telescopic rod 21 along the extension direction of the rod body. The second connecting member 22 is rotatably connected to the first connecting member 12. The second connecting member 22 is provided with a limiting protrusion 2211. The fan head 3 can be rotatably provided on the telescopic rod 2 1 is one end away from the second connecting member 22; wherein, the support rod 2 is connected to the second connecting member 22 of the first connecting member 12 by rotation, and can be rotated relative to the base 1, so that the telescopic folding fan 100 has a retracted state, a folded state and an expanded state. In the retracted state, the telescopic rod 21 can be retracted to drive the fan head 3 to approach the base 1; in the folded state, the telescopic rod 21 is connected to the second connecting member 22 of the first connecting member 12 by rotation, so as to drive the fan head 3 to rotate relative to the base 1 and approach the base 1; in the expanded state, the limiting protrusion 2211 is limited by the limiting groove 1212.

[0055] In this embodiment, the telescopic folding fan 100 can be telescopic and folded to store the fan and reduce the space occupied by the fan. The telescopic folding fan 100 can be telescopic through a telescopic tube, a telescopic slide rail and a connecting rod structure to enter a retracted state. It can be folded by rotational folding, bending folding, limited folding, etc. to enter a folded state, which is not limited here. The telescopic folding fan 100 includes a base 1, a support rod 2 and a fan head 3. The base 1 is a structural support component of the telescopic folding fan 100. The base 1 is placed on the ground, and the support rod 2 is arranged on the base 1. The base 1 can be a frame, a connecting seat, a mounting platform and other structures.

[0056] In this embodiment, if Figures 1 to 4 As shown, the support rod 2 is a rod-shaped, column-shaped or rod-shaped structure, one end of the support rod 2 is connected to the base 1, and the other end of the support rod 2 is used to connect and install the fan head 3 to support the fan head 3, so that the fan head 3 can maintain a certain distance from the ground and blow air in a space at a certain height, and the fan head 3 can be rotatably connected to the support rod 2, such as pitching around a fixed axis, or swinging left and right around a fixed axis.

[0057] In this embodiment, if Figures 1 to 7As shown, the base 1 includes a base 11 and a first connecting member 12, wherein the base 11 is placed on the ground, the first connecting member 12 is rotatably arranged on the base 11, and the first connecting member 12 rotates relative to the base 11 around a straight line perpendicular to the ground, such as a rotating shaft is set on the base 11, the first connecting member 12 is provided with a rotating hole, and a bearing is set in the rotating hole, and the first connecting member 12 is rotatably arranged on the base 11 through the cooperation of the rotating shaft and the bearing; the support rod 2 includes a telescopic rod 21 and a second connecting member 22, the telescopic rod 21 is connected to the second connecting member 22, and the second connecting member 22 is provided at one end of the telescopic rod 21 along the extension direction of the rod body, the telescopic rod 21 is a telescopic structure formed by sequentially arranging multiple telescopic sections with different diameters, and a fan head 3 is provided at the end of the telescopic rod 21 away from the second connecting member 22, and the telescopic rod 21 itself is extended and retracted to change the distance of the fan head 3 relative to the base 11, thereby changing the blowing height of the fan head 3.

[0058] At the same time, a limiting groove 1212 is provided on the first connecting member 12, and a limiting protrusion 2211 is provided on the second connecting member 22 corresponding to the limiting groove 1212. On the basis of the rotational connection between the first connecting member 12 and the second connecting member 22, the limiting protrusion 2211 can extend into the limiting groove 1212 or away from the limiting groove 1212, so that the telescopic rod 21 is limitedly connected to the base 11, or is disconnected from the limiting connection with the base 11. Specifically, the telescopic rod 21 is rotatably connected to the first connecting member 12 through the second connecting member 22, so that the telescopic rod 21 drives the fan head 3 to rotate close to or away from the base 11, and when the telescopic rod 21 drives the fan head 3 close to the base 11, the telescopic folding fan 100 is in a retracted state, and the telescopic rod 21 drives the fan The head 3 is away from the base 11, so that the telescopic folding fan 100 is in an expanded state. At the same time, the telescopic rod 21 can drive the fan head 3 to rotate relative to the base 1 by rotating the second connecting member 22 connected to the first connecting member 12, and make the fan head 3 close to the base 1, so that the telescopic folding fan 100 is in a folded state. The telescopic rod 21 drives the fan head 3 to rotate away from the base 1 by rotating the second connecting member 22 connected to the first connecting member 12, so that the telescopic folding fan 100 is in an expanded state. In the expanded state, the limiting protrusion 2211 can be limited in the limiting groove 1212, so that the relative positions of the first connecting member 12 and the second connecting member 22 remain fixed, and the positions of the telescopic rod 21 and the fan head 3 relative to the base 11 also remain fixed at this time.

[0059] It can be understood that the limiting protrusion 2211 can be a limiting bar, a limiting block or a limiting plate. By setting the limiting protrusion 2211 and the limiting groove 1212, when the telescopic rod 21 is rotated, the limiting protrusion 2211 can be directly extended into the limiting groove 1212 or disengaged from the limiting groove 1212, thereby ensuring the positioning of the telescopic rod 21 and the fan head 3 directly after rotation, and no longer needing to use positioning pins, locks, screws and other structures to position the telescopic rod 21 and the fan head 3, effectively simplifying the storage and deployment method of the telescopic folding fan 100, and effectively improving the convenience of use, and when the limiting protrusion 2211 and the limiting groove 1212 are engaged with each other, they can provide support force for the telescopic rod 21 and the fan head 3 to prevent the telescopic rod 21 and the fan head 3 from tipping over.

[0060] The telescopic folding fan 100 of the present invention includes a base 1, a support rod 2 and a fan head 3. The base 1 includes a base 11 and a first connecting member 12. The first connecting member 12 is rotatably arranged on the base 11. The first connecting member 12 is provided with a limiting groove 1212. The support rod 2 includes a telescopic rod 21 and a second connecting member 22. The second connecting member 22 is provided at one end of the telescopic rod 21 along the extension direction of the rod body. The second connecting member 22 is rotatably connected to the first connecting member 12. The second connecting member 22 is provided with a limiting protrusion 2211. The fan head 3 is rotatably arranged at the end of the telescopic rod 21 away from the second connecting member 22. The telescopic folding fan 100 has a retracted state, a folded state and an unfolded state. In the retracted state, the telescopic rod 21 can be retracted to drive the fan head 3 toward the base 1; in the folded state, the telescopic rod 21 is connected to the second connecting member 22 of the first connecting member 12 by rotation to drive the fan head 3 to rotate relative to the base 1 and approach the base 1; in the unfolded state, the limiting protrusion 2211 is limited in the limiting groove 1212. When switching from the folded state to the unfolded state, or from the unfolded state to the folded state, the telescopic rod 21 is directly rotated through the rotational connection of the first connecting member 12 and the second connecting member 22, so that the telescopic folding fan 100 can be converted between the folded state and the unfolded state, and in the unfolded state, the limiting protrusion 2211 is in the limiting groove 1212 to limit the position of the telescopic rod 21 and the fan head 3, so that the position of the support rod 2 relative to the base 1 is fixed. In the folded state, the limiting protrusion 2211 disengages from the limiting groove 1212 to store the support rod 2 and the fan head 3. In this way, while ensuring the stability of the position of the support rod 2 and the fan head 3 relative to the base 1, the storage and deployment process of the support rod 2 and the fan head 3 is simplified, thereby improving the user's convenience.

[0061] In one embodiment, if Figures 8 to 12As shown, the second connecting member 22 is also provided with a give way groove 2212 and an elastic protrusion 2213 provided in the give way groove 2212, the elastic protrusion 2213 includes an elastic arm 2214 and abutment block 2215 connected to each other, and the elastic arm 2214 is connected to the groove wall of the give way groove 2212 away from the end connected to the abutment block 2215; in the expanded state, the abutment block 2215 is limited to the limiting groove 1212.

[0062] In this embodiment, a clearance groove 2212 is provided on the side of the second connecting member 22 facing the first connecting member 12, and a portion of the clearance groove 2212 is arranged opposite to the limiting groove 1212, and the second connecting member 22 is provided with an elastic protrusion 2213 in the clearance groove 2212. The elastic protrusion 2213 includes a fixed end and a free end. The fixed end is connected to the groove wall of the clearance groove 2212, and the free end can move relative to the fixed end and can extend into the limiting groove 1212 or away from the limiting groove 1212. Specifically, the elastic protrusion 2213 includes an elastic arm 2214 connected to the first connecting member 12. And the abutment block 2215, the elastic arm 2214 and the abutment block 2215 can be fixedly connected or detachably connected, which is not limited here, wherein one end of the elastic arm 2214 is connected to the groove wall of the yield groove 2212, that is, the above-mentioned fixed end, and the other end of the elastic arm 2214 is connected to the abutment block 2215, that is, the above-mentioned free end, so that when the abutment block 2215 touches the external structure, the position of the abutment block 2215 can be changed through the force of the elastic arm 2214 itself, so as to realize the elastic change of the elastic protrusion 2213.

[0063] It can be understood that the elastic protrusion 2213 and the limiting protrusion 2211 are both arranged on the side of the second connecting member 22 facing the first connecting member 12. In the process of rotating the telescopic rod 21 relative to the base 11, the elastic protrusion 2213 and the limiting protrusion 2211 rotate together relative to the first connecting member 12, and in the unfolded state, when the limiting protrusion 2211 is limited in the limiting groove 1212, the abutment block 2215 is also limited in the limiting groove 1212.

[0064] It can be understood that when the folded state is turned into the unfolded state, the limiting protrusion 2211 can directly extend into the limiting groove 1212 or directly detach from the limiting groove 1212, and the abutment head in the elastic protrusion 2213 can change its position relative to the limiting groove 1212 under the elastic deformation action of the elastic arm 2214 to extend into the limiting groove 1212 or away from the limiting groove 1212, that is, the limiting method and limiting principle of the elastic protrusion 2213 and the limiting protrusion 2211 and the limiting groove 1212 are different. At the same time, when directly passing through the limiting groove When the positioning groove 1212 limits the limiting protrusion 2211, the elastic protrusion 2213 is set so that the abutment block 2215 can tightly abut the groove wall of the limiting groove 1212 under the action of the elastic arm 2214, thereby improving the connection stability of the first connecting member 12 and the second connecting member 22 in the unfolded state, and when the limiting protrusion 2211 and the elastic protrusion 2213 are engaged with the limiting groove 1212, they can provide supporting force for the telescopic rod 21 and the fan head 3 to prevent the telescopic rod 21 and the fan head 3 from tipping over.

[0065] At the same time, based on the above embodiment, the telescopic folding fan 100 further includes an outer sleeve 4, which can slide relative to the first connecting member 12 and the second connecting member 22. In the retracted state and the expanded state, the outer sleeve 4 is mounted on the outer wall of the first connecting member 12 and the outer wall of the second connecting member 22; in the folded state, the outer sleeve 4 is mounted on the outer wall of the second connecting member 22. In the retracted state and the expanded state, the outer sleeve 4 can be mounted on the outer walls of the first connecting member 12 and the second connecting member 22 to provide the main supporting force for the telescopic rod 21 and the fan head 3, while the limiting protrusion 2211 and the elastic protrusion 2213 provide auxiliary supporting force. Through the combined action of the outer sleeve 4, the limiting protrusion 2211 and the elastic protrusion 2213, the connection between the first connecting member 12 and the second connecting member 22 is effectively improved, preventing the telescopic rod 21 and the fan head 3 from tipping relative to the base 11.

[0066] In one embodiment, if Figure 10 and Figure 12 As shown, the limiting groove 1212 includes a first groove 1213 and a second groove 1214, and the groove depth of the first groove 1213 is greater than the groove depth of the second groove 1214; in the expanded state, the elastic protrusion 2213 is limited to the first groove 1213, and the limiting protrusion 2211 is limited to the second groove 1214.

[0067] In this embodiment, the limiting groove 1212 includes a first groove 1213 and a second groove 1214. The first groove 1213 and the second groove 1214 can be connected to each other or not, and the first groove 1213 and the second groove 1214 are arranged along a straight line at intervals or in connection. Preferably, the connecting line between the first groove 1213 and the second groove 1214 passes through the rotation center of the first connecting member 12 and the second connecting member 22, so that during the rotation of the second connecting member 22 relative to the first connecting member 12, the limiting protrusion 2211 and the elastic protrusion 2213 can be sequentially or synchronously extended into the limiting groove 1212, and the elastic protrusion 2213 is limited in the first groove 1213, and the limiting protrusion 2211 is limited in the second groove 1214.

[0068] The second groove 1214 is provided to limit the elastic protrusion 2213 and the limiting protrusion 2211 respectively, and the groove depth of the first groove 1213 is greater than the groove depth of the second groove 1214, so that the abutment block 2215 is closer to the first connecting member 12 relative to the limiting protrusion 2211, and the abutment block 2215 extends into the limiting groove 1212 more than the limiting protrusion 2211. On the one hand, since the elastic arm 2214 itself can produce elastic deformation, the deeper groove depth of the first groove 1213 is also more convenient for the abutment block 2215 to extend into the first groove 1213 of the limiting groove 1212 than the limiting protrusion 2211. At the same time, it can also increase the abutment force between the elastic protrusion 2213 and the first groove 1213, thereby improving the connection firmness between the telescopic rod 21 and the base 11 in the unfolded state.

[0069] In one embodiment, if Figure 1 and Figure 2 As shown, in the unfolded state, the telescopic rod 21 extends in the vertical direction and moves the fan head 3 away from the base 11 , and the first connecting member 12 is rotatably arranged on the base 11 with the extension direction of the telescopic rod 21 as the axis.

[0070] It can be understood that, in the unfolded state, the telescopic rod 21 is extended in the vertical direction, and the telescopic rod 21 and the fan head 3 can be rotated relative to the base 11 with the extension direction of the telescopic rod 21 as the axis through the second connecting member 22 and the first connecting member 12. At this time, the abutment block 2215 of the limiting protrusion 2211 and the elastic protrusion 2213 is limited in the limiting groove 1212, so that the rod body of the telescopic rod 21 is extended in the vertical direction. At the same time, the arrangement direction of the first groove 1213 and the second groove 1214 in the limiting groove 1212 is also the same as the extension direction of the rod body of the telescopic rod 21. Therefore, when the limiting protrusion 2211 is limited in the first groove 1213 and the elastic protrusion 2213 is limited in the second groove 1214, the telescopic rod 21 can extend in the vertical direction to support the fan head 3.

[0071] In one embodiment, the direction of the rotation axis of the first connecting member 12 and the second connecting member 22 is perpendicular to the vertical direction; it can be understood that by rotating the first connecting member 12 and the second connecting member 22, the telescopic rod 21 can be rotated relative to the base 11, and the rotation of the telescopic rod 21 relative to the base 11 is to move in a direction close to the base 11 or away from the base 11, that is, to rotate in a direction perpendicular to the vertical direction.

[0072] Optionally, the extending direction of the limiting groove 1212 is the same as the extending direction of the telescopic rod 21 in the expanded state.

[0073] In one embodiment, if Figure 6 、 Figures 8 to 12 As shown, the first connecting member 12 is provided with a rotating groove 1211, and the limiting groove 1212 is provided on the groove wall of the rotating groove 1211; the second connecting member 22 includes a rotating head 221 and an inner sleeve 222 connected to each other, the inner sleeve 222 forms an inner cavity 2221, one end of the telescopic rod 21 extends into the inner cavity 2221 and is connected to the inner sleeve 222, the rotating head 221 extends into the rotating groove 1211, and is rotatably connected to the first connecting member 12, and the limiting protrusion 2211 is provided on the rotating head 221.

[0074] In this embodiment, the first connecting member 12 is provided with a rotating groove 1211, the groove opening of the rotating groove 1211 is set toward the second connecting member 22 and the telescopic tube, and the limiting groove 1212 is set on the groove walls on both sides opposite to the rotating groove 1211. The rotating head 221 in the second connecting member 22 extends into the rotating groove 1211 and is rotatably connected to the first connecting member 12. The inner sleeve 222 is connected to the rotating head 221 and is located at the end of the rotating head 221 away from the rotating groove 1211.

[0075] Specifically, the rotating head 221 is provided with two mounting side walls 221a, and the two mounting side walls 221a of the rotating head 221 are arranged away from each other, and each mounting side wall 221a is arranged facing the groove wall of the rotating groove 1211 and is arranged parallel to the groove wall of the rotating groove 1211. At the same time, a first rotating hole penetrating the two mounting side walls 221a is opened on the rotating head 221, and a second rotating hole connected to the rotating groove 1211 is opened on the first connecting member 12. The base 1 also includes a shaft, and the rotating head 221 extends After entering the rotation groove 1211, the shaft is sequentially passed through the first rotation hole and the second rotation hole to enable the first connecting member 12 and the second connecting member 22 to rotate relative to each other. At the same time, a limiting protrusion 2211 and a clearance groove 2212 are provided on each mounting side wall 221a, and the elastic protrusion 2213 is provided in the clearance groove 2212. In the expanded state, the elastic protrusion 2213 and the limiting protrusion 2211 on each mounting side wall 221a are located in the limiting groove 1212 on the facing side.

[0076] Furthermore, the inner sleeve 222 is a cylindrical structure, and the surrounding walls enclose a hollow inner cavity 2221 structure. One end of the telescopic rod 21 can be extended into the inner cavity 2221 and connected to the inner sleeve 222. The inner cavity 2221 formed by the inner sleeve 222 can accommodate and connect the telescopic rod 21, so that the telescopic rod 21 can be rotatably connected to the first connecting member 12 through the rotating head 221, so that the telescopic rod 21 can be rotated and folded for storage.

[0077] It can be understood that by setting the rotating head 221, the groove structure of the rotating groove 1211 can be better adapted, and the rotating head 221 has a circular arc surface away from the end connected to the inner sleeve 222, and the circular arc surface is centered on the rotation axis of the rotating head 221 relative to the first connecting member 12, so that when the rotating head 221 rotates relative to the first connecting member 12, the rotation process is smoother. At the same time, the inner sleeve 222 can also adapt to the structure of the telescopic rod 21 to connect the telescopic rod 21 to the rotating head 221.

[0078] In one embodiment, if Figure 11 and Figure 12 As shown, a ring groove 2216 is provided on the side of the rotating head 221 facing the limiting groove 1212. The ring groove 2216 is arranged in a ring shape with the axis of rotation of the rotating head 221 relative to the first connecting member 12 as the center; the telescopic folding fan 100 also includes damping silicone, which is arranged in the ring groove 2216.

[0079] In this embodiment, an annular groove 2216 is provided on the mounting side wall 221a. The annular groove 2216 is arranged in an annular shape with the rotation axis of the rotating head 221 relative to the first connecting member 12 as the center, that is, it is arranged in an annular shape with the first rotating hole as the center, and the annular groove 2216 is a groove body structure with a certain width, and the notch of the annular groove 2216 is arranged toward the limiting groove 1212. The telescopic folding fan 100 also includes damping silicone, which is arranged in the annular groove 2216, and part of the damping silicone exceeds the notch of the annular groove 2216 to abut against the groove wall of the rotating groove 1211, so that when the rotating head 221 rotates relative to the first connecting member 12, the damping silicone can provide resistance to the rotating head 221, thereby ensuring the stability of the telescopic rod 21 and the second connecting member 22 during the rotation process relative to the first connecting member 12, providing more linear damping sense for the rotation process, and avoiding uncontrolled large-scale rotation of the telescopic rod 21 and the fan head 3 relative to the first connecting member 12.

[0080] In one embodiment, if Figures 2 to 6As shown, the telescopic folding fan 100 also includes an outer sleeve 4, which forms a sliding cavity. The first connecting member 12 and the second connecting member 22 can extend into the sliding cavity so that the outer sleeve 4 can slide relative to the first connecting member 12 and the second connecting member 22; in the retracted state and the expanded state, the outer sleeve 4 is sleeved on the outer wall of the first connecting member 12 and the outer wall of the second connecting member 22; in the folded state, the outer sleeve 4 is sleeved on the outer wall of the second connecting member 22.

[0081] It can be understood that the outer sleeve 4 is a hollow cylindrical structure, and a sliding cavity is formed through the center of the outer sleeve 4, so that the first connecting member 12 and the second connecting member 22 can both extend into the sliding cavity, so that the outer sleeve 4 can slide relative to the first connecting member 12 and the second connecting member 22. In the retracted state and the expanded state, the telescopic rod 21 remains in a vertical state, and the outer sleeve 4 is sleeved on the outer wall of the inner sleeve 222 in the first connecting member 12 and the second connecting member 22, so as to keep the position between the first connecting member 12 and the second connecting member 22 fixed through the outer sleeve 4, and prevent the second connecting member 22 from rotating relative to the first connecting member 12. In the folded state, the telescopic rod 21 can be The outer sleeve 4 moves to the inner sleeve 222 of the second connecting member 22 to disengage the outer sleeve 4 from the movable abutment with the first connecting member 12, thereby contacting the rotation limit of the first connecting member 12 and the second connecting member 22. At this time, the outer sleeve 4 can rotate relative to the first connecting member 12 together with the telescopic rod 21 and the second connecting member 22, that is, the outer sleeve 4 is a locking structure and an unlocking structure. By setting the outer sleeve 4, the first connecting member 12 and the second connecting member 22 can be locked to avoid relative rotation and maintain the expanded state, or unlocked to facilitate the second rotating member to rotate relative to the first rotating member and enter the folded state from the expanded state.

[0082] In one embodiment, if Figure 5 and Figure 6 As shown, the first connecting member 12 includes a connecting head 121 and a stop 122 that are connected to each other. The stop 122 is arranged in a ring shape around the connecting head 121. A movable gap 123 is formed between the stop 122 and the base 11. The connecting head 121 and the stop 122 are combined to form a sink 124; a limiting flange 41 is provided at one end of the outer sleeve 4 facing the base 11. In the expanded state, one end of the outer sleeve 4 extends into the sink 124, and the limiting flange 41 abuts against the stop 122.

[0083] In this embodiment, the base 11 is formed with a mounting hole 1112, and the first connecting member 12 is arranged in the mounting hole 1112. At the same time, the first connecting member 12 includes a connecting head 121 and a stop 122. The outer walls of the stop 122 and the connecting head 121 are combined to form an annular groove 124. The connecting head 121 and the stop 122 are located in the mounting hole 1112. The stop 122 is arranged in a ring shape around the axis of the mounting hole 1112 to form a movable gap 123 between the stop 122 and the hole wall of the mounting hole 1112. A limiting flange 41 is provided at the end of the outer sleeve 4 facing the base 11. In the expanded state, one end of the outer sleeve 4 can extend into the groove 124 and make the limiting flange 41 abut against the top wall of the stop 122.

[0084] It can be understood that by providing a limiting flange 41 on the outer sleeve 4 and a recessed groove 124 on the first connecting member 12, the end of the outer sleeve 4 can be extended into the recessed groove 124 in the expanded state, and the limiting flange 41 can be abutted against the stop 122, so that the outer sleeve 4 is tightly fastened with the first connecting member 12, ensuring that the outer sleeve 4 is fixed relative to the first connecting member 12, thereby ensuring that the outer sleeve 4 is simultaneously sleeved on the outer walls of the first connecting member 12 and the second connecting member 22. At the same time, through the movable gap between the stop 122 and the base 11, when part of the outer sleeve 4 is extended into the recessed groove 124, the squeezed stop 122 can provide more installation space for the outer sleeve 4 by reducing the width of the movable gap, so as to reduce the increase in wear between the outer sleeve 4 and the first connecting member 12 due to the overly tight connection when the first connecting member 12 rotates relative to the base 11.

[0085] In one embodiment, if Figure 7 As shown, the base 11 includes a base surface shell 111, a connecting seat 112 and a ball bearing 113. The base 11 forms a mounting cavity 1111. The base surface shell 111 is provided with a mounting hole 1112 connected to the mounting cavity 1111. The connecting seat 112 is bolted to the base surface shell 111 and is located in the mounting cavity 1111. The connecting seat 112 is provided with a rotating hole 1122 corresponding to the mounting hole 1112. The ball bearing 113 is provided in the rotating hole 1122. The outer ring of the ball bearing 113 abuts the hole wall of the rotating hole 1122. One end of the connecting head 121 is connected to the inner ring of the ball bearing 113; wherein, the connecting seat 112 and the upper cover 11a form an installation space, and the installation space is connected to the mounting hole 1112 and the rotating hole 1122. A part of the connecting head 121 is rotatably provided in the installation space, and the other part of the connecting head 121 is passed through the mounting hole 1112 to be rotatably connected with the second connecting member 22.

[0086] In this embodiment, the connecting seat 112 is arranged in the installation cavity 1111. At the same time, the connecting seat 112 and the base surface shell 111 are also detachably connected by bolts, screws or studs. The connecting seat 112 is provided with a rotating hole 1122, and the ball bearing 113 is arranged in the rotating hole 1122, wherein the outer ring of the ball bearing 113 abuts against the hole wall of the rotating hole 1122, and the end of the connecting head 121 of the first connecting member 12 is connected to the inner ring of the ball bearing 113, so that the connecting head 121 of the first connecting member 12 can rotate relative to the connecting seat 112.

[0087] At the same time, the base surface shell 111 is also provided with a mounting hole 1112 connected to the mounting cavity 1111. The mounting hole 1112 is arranged opposite to the rotating hole 1122 so that the hole axis of the rotating hole 1122 coincides with the hole axis of the mounting hole 1112. At the same time, the connecting seat 112 and the base surface shell 111 are enclosed to form an installation space. The installation space is connected to the rotating hole 1122 and the mounting hole 1112. The first connecting member 12 is located in the installation space, and the first connecting member 12 is rotatably connected to the connecting seat 112 through the ball bearing 113. The other end of the first connecting member 12 is passed through the mounting hole 1112 and is rotatably connected to the second connecting member 22.

[0088] In one embodiment, if Figure 7 As shown, the base 11 also includes a gear set 114, which is provided on the base surface shell 111 and located in the installation cavity 1111. The gear set 114 includes a motor 1141, a driving gear 1142 and a driven gear 1143. The driving gear 1142 is provided on the output shaft of the motor 1141, and the driven gear 1143 is rotatably provided on the base surface shell 111. The driven gear 1143 is meshed with the driving gear 1142. The rotation axis of the driven gear 1143 coincides with the axis of the rotating hole 1122. The driven gear 1143 is bolted to the connecting head 121; It is understood that the motor 1141 is used to drive the driving gear 1142 to rotate, and through the meshing connection between the driving gear 1142 and the driven gear 1143, the driven gear 1143 is driven to rotate. The rotation axis of the driven gear 1143 coincides with the axis of the rotating hole 1122, and the driven gear 1143 and the connecting head 121 of the first connecting member 12 are detachably connected by bolts, screws or studs, so that the motor 1141 drives the first connecting member 12, and the support rod 2 and the fan head 3 connected to the first connecting member 12 are driven to rotate together.

[0089] Optionally, the connecting seat 112 is also provided with a rotating groove 1121 connected to the installation space, and the first connecting member 12 also includes a rotating disk 125, which is connected to the connecting head 121 and the stop 122, and the rotating disk 125 is rotatably arranged in the rotating groove 1121; it can be understood that the connecting seat 112 is provided with a rotating groove 1121 on the side facing the mounting hole 1112, and the rotating disk 125 of the first connecting member 12 is arranged in the rotating groove 1121, wherein a plurality of movable balls are provided on the rotating disk 125, and a raceway is provided on the bottom wall of the rotating groove 1121. When the rotating disk 125 rotates relative to the rotating groove 1121, the balls roll in the raceway and cause the rotating head 221 to rotate relative to the connecting seat 112, so as to ensure smooth rotation, and ensure the firmness of the connection between the first connecting member 12 and the connecting seat 112, and ensure the stability of the telescopic rod 21 and the fan head 3.

[0090] Alternatively, as Figure 7 As shown, the base 11 is provided with a first sleeve 111b, the connecting base 112 is provided with a second sleeve 1123, and the base surface shell 111 is provided with a positioning column 111a, which is inserted into the first sleeve 111b and the second sleeve 1123. It can be understood that the first sleeve 111b and the second sleeve 1123 are both hollow structures, forming a sleeve cavity, and the extension direction of the sleeve cavity is the same as the extension direction of the column of the positioning column 111a. On the basis of the connection between the connecting base 112 and the base 11, the positioning column 111a can pass through the first sleeve 111b and the second sleeve 1123 to ensure the accuracy of the relative position between the base surface shell 111 and the connecting base 112, and provide a more solid support for the connecting base 112, preventing the telescopic rod 21 and the fan head 3 from tipping over.

[0091] The above description is merely an exemplary embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made using the contents of the present invention specification and drawings under the technical concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A telescopic folding fan, characterized in that: The telescopic folding fan comprises: A base, comprising a base and a first connecting member, wherein the first connecting member is provided on the base and has a limiting groove; A support rod, the support rod comprising a telescopic rod and a second connecting member, the second connecting member being provided at one end of the telescopic rod along the extension direction of the rod body, the second connecting member being rotatably connected to the first connecting member, and the second connecting member being provided with a limiting protrusion; and a fan head, the fan head being rotatably disposed at an end of the telescopic rod away from the second connecting member; In which, the telescopic folding fan has a retracted state, a folded state and an expanded state. In the retracted state, the telescopic rod can be retracted to drive the fan head toward the base; in the folded state, the support rod is connected to the second connecting member of the first connecting member by rotation to drive the fan head to rotate relative to the base and approach the base; in the expanded state, the limiting protrusion is limited in the limiting groove.

2. The telescopic folding fan according to claim 1, characterized in that: The second connecting member is further provided with a clearance groove and an elastic protrusion provided in the clearance groove, the elastic protrusion comprising an elastic arm and an abutment block connected to each other, and an end of the elastic arm away from the abutment block is connected to the groove wall of the clearance groove; In the expanded state, the abutment block is limited in the limiting groove.

3. The telescopic folding fan according to claim 2, characterized in that: The limiting groove includes a first groove and a second groove, and the groove depth of the first groove is greater than the groove depth of the second groove; In the expanded state, the elastic protrusion is located in the first groove, and the limiting protrusion is located in the second groove.

4. The telescopic folding fan according to claim 1, wherein: In the expanded state, the telescopic rod extends in a vertical direction and moves the fan head away from the base, and the first connecting member is rotatably mounted on the base with the extension direction of the telescopic rod as an axis; And / or, the extending direction of the groove body of the limiting groove is the same as the extending direction of the rod body of the telescopic rod in the expanded state.

5. The telescopic folding fan according to any one of claims 1 to 4, characterized in that: The first connecting member is provided with a rotation groove, and the limiting groove is provided on the groove wall of the rotation groove; The second connecting member includes a rotating head and an inner sleeve connected to each other, the inner sleeve forms an inner cavity, one end of the telescopic rod extends into the inner cavity and is connected to the inner sleeve, the rotating head extends into the rotating groove and is rotatably connected to the first connecting member, and the limiting protrusion is provided on the rotating head.

6. The telescopic folding fan according to claim 5, characterized in that: A ring groove is provided on one side of the rotating head facing the limiting groove, and the ring groove is arranged in an annular shape with the axis of rotation of the rotating head relative to the first connecting member as the center; The telescopic folding fan further includes damping silica gel, which is arranged in the annular groove.

7. The telescopic folding fan according to any one of claims 1 to 4, characterized in that: The telescopic folding fan further includes an outer sleeve, the outer sleeve forming a sliding cavity, the first connecting member and the second connecting member can extend into the sliding cavity, so that the outer sleeve can slide relative to the first connecting member and the second connecting member; In the contracted state and the expanded state, the outer sleeve is sleeved on the outer wall of the first connecting member and the outer wall of the second connecting member; In the folded state, the outer sleeve is sleeved on the outer wall of the second connecting member.

8. The telescopic folding fan according to claim 7, characterized in that: The first connecting member includes a connecting head and a stopper connected to each other, the stopper is arranged in a ring shape around the connecting head, a movable gap is formed between the stopper and the base, and the connecting head and the stopper are enclosed to form a sink; A limiting flange is provided on one end of the outer sleeve facing the base. In the expanded state, one end of the outer sleeve extends into the sink, and the limiting flange abuts against the stop.

9. The telescopic folding fan according to claim 8, characterized in that: The base comprises: A base shell, wherein the base shell is provided with a mounting hole; A connecting seat, the connecting seat is bolted to the base shell, and the connecting seat is provided with a rotary hole corresponding to the mounting hole; and A ball bearing, wherein the ball bearing is disposed in the rotating hole, the outer ring of the ball bearing abuts against the hole wall of the rotating hole, and one end of the connector is connected to the inner ring of the ball bearing; Among them, the connecting seat and the base surface shell form an installation space, the installation space is connected to the installation hole and the rotating hole, a part of the connecting head is rotatably arranged in the installation space, and the other part of the connecting head is passed through the installation hole to be rotatably connected with the second connecting member.

10. The telescopic folding fan according to claim 9, characterized in that: The base further includes a gear set, which is disposed on the base surface shell and includes: Motor; a driving gear, the driving gear being disposed on the output shaft of the motor; and A driven gear, the driven gear being rotatably mounted on the base housing, the driven gear being meshed with the driving gear, the rotation axis of the driven gear coinciding with the axis of the rotating hole, and the driven gear being bolted to the connecting head; And / or, the connecting seat is further provided with a rotation groove communicating with the installation space, the first connecting member further comprises a rotating disk, the rotating disk is connected to the connecting head and the stop platform, and the rotating disk is rotatably provided in the rotation groove; And / or, the base is further provided with a first sleeve, the connecting seat is provided with a second sleeve, the base surface shell is provided with a positioning column, and the positioning column is passed through the first sleeve and the second sleeve.

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