CN220227304U - Tower fan - Google Patents

Abstract

The utility model provides a tower fan, which comprises a base and at least two fan body assemblies which are coaxially arranged, wherein the two adjacent fan body assemblies are connected through a butt joint assembly, the butt joint assembly comprises two butt joint mechanisms, the two butt joint mechanisms are respectively a first butt joint mechanism arranged on a first fan body assembly and a second butt joint mechanism arranged on a second fan body assembly, the first butt joint mechanism is connected with a transmission shaft of the first fan body assembly, the second butt joint mechanism is connected with a transmission shaft of the second fan body assembly, and the first butt joint mechanism and the second butt joint mechanism are linked to each other so as to transmit torque. The base of the tower fan is modularized with the plurality of fan body components so as to be convenient to assemble and disassemble, and the fan body components are butted by the butt joint components, so that the fan body components can be well driven, and the jump of the fan body components during the operation of the transmission shaft is reduced, so that the tower fan can be well operated.

Description

Tower fan

Technical Field

The utility model belongs to the technical field of intelligent home, and particularly relates to a tower fan.

Background

The tower fan has smaller volume than the traditional fan, is convenient to use and soft in air supply, and is widely applied to family life. The existing tower fan generally comprises a single fan body and a base, the air supply angle of the fan body is smaller, the air cannot be supplied in all directions, and the requirements of the existing family life cannot be met.

In order to solve the above-mentioned problems, it has been proposed in the industry to provide a plurality of sectors for a tower fan, wherein the plurality of sectors are connected in sequence and have different angle settings, so that the tower fan can supply air in all directions. But each fan body is fixedly connected, and the base is also fixedly connected with the fan body, so that the fan is inconvenient to unpick, wash and store.

In order to solve the problem of inconvenient disassembly, it has been proposed in the industry to modularize each fan so that each fan can be spliced with each other, thereby facilitating disassembly, washing and storage. However, after each fan body is modularized, each fan body is provided with an independent rotating shaft, and the wind wheel of the fan body is driven to rotate through the rotating shaft so as to supply air to the outside. The output shaft of the motor of the tower fan is indirectly connected with the rotating shaft of each fan body, and when the rotating shaft of each fan body receives the torque of the output of the motor, the rotating shaft of each fan body is easy to deviate from the central axis where the output shaft is positioned, so that the rotating shaft of each fan body cannot well receive the torque of the output of the motor, each fan body is easy to break down in the operation process, and the use of the tower fan is affected.

Disclosure of Invention

The present utility model aims to solve at least one of the above problems and provide a tower fan.

The utility model is suitable for various purposes, and adopts the following technical scheme:

the utility model provides a tower fan which comprises a base and at least two fan body assemblies, wherein the base and the at least two fan body assemblies are coaxially arranged, the two adjacent fan body assemblies are connected through a butt joint assembly, the butt joint assembly comprises two butt joint mechanisms, the two butt joint mechanisms are respectively a first butt joint mechanism arranged on the first fan body assembly and a second butt joint mechanism arranged on the second fan body assembly, the first butt joint mechanism is connected with a transmission shaft of the first fan body assembly, the second butt joint mechanism is connected with a transmission shaft of the second fan body assembly, and the first butt joint mechanism and the second butt joint mechanism are linked to each other so as to transmit torque.

Further, the first docking mechanism and the second docking mechanism both comprise correction pieces, the transmission shaft penetrates through a rotation hole provided by the correction pieces, the correction pieces are made of flexible materials, and the correction pieces are further provided with annular correction grooves which are arranged around the rotation hole.

Further, an annular clamping groove is formed in the outer side wall of the correcting piece and is used for being clamped with an external part.

Specifically, a bearing groove is further formed in the rotating hole, an oil-containing bearing is arranged in the bearing groove, and the transmission shaft also penetrates through the bearing hole of the oil-containing bearing.

Further, the first docking mechanism comprises a first docking piece, the transmission shaft on the first fan assembly is inserted into the connecting hole of the first docking piece, the second docking mechanism comprises a second docking piece, the transmission shaft on the second fan assembly is inserted into the connecting hole of the second docking piece, and the first docking piece and the second docking piece are connected with each other.

Further, the first butt joint piece is provided with a plurality of clamping pieces which are arranged clockwise, the second butt joint piece is provided with a plurality of clamping pieces which are arranged anticlockwise, and the plurality of clamping pieces on the first butt joint piece are mutually clamped with the plurality of clamping pieces on the second butt joint piece.

Further, a self-locking mechanism is further arranged between the two adjacent fan body assemblies and used for locking the two adjacent fan body assemblies so that the two fan body assemblies are stably connected.

Further, the self-locking mechanism comprises an interface seat, a locking pin piece and a collar, an interface groove is formed in one face of the interface seat, an annular wall body is arranged on the other face of the interface seat in a protruding mode, the locking pin piece penetrates through the annular wall body to enter the interface groove, the collar is hooped on the periphery of the annular wall body to press the locking pin piece, the interface seat of the self-locking mechanism is fixed in an interface channel provided by the first fan body assembly, and the plug-in wall of the second fan body assembly is inserted into the interface groove of the interface seat.

Specifically, the locking pin piece includes the round pin body and is located the cap body of round pin body one end, the cap body side is equipped with outer lug, the biggest external diameter of cap body with the through-hole interference fit that sets up on the cyclic annular cavity, the locking pin piece passes the through-hole sets up.

Specifically, the inner wall of the lantern ring forms a step along the circumferential direction, the step comprises an unlocking surface and a locking surface, and the unlocking surface and the locking surface are in smooth transition.

Specifically, a through second interface groove is formed in the interface seat, and the transmission shaft of the second fan assembly is connected to the second interface groove of the interface seat and passes through the second interface groove to be linked with the transmission shaft of the first fan assembly.

The present utility model has many advantages over the prior art, including but not limited to:

on one hand, two adjacent fan body assemblies of the tower fan are connected through the butt joint assembly, two butt joint mechanisms of the butt joint assembly are respectively arranged on the two fan body assemblies, and butt joint pieces of the two butt joint mechanisms are connected with each other, so that the two fan body assemblies transmit power moment mutually, when a transmission shaft of the fan body assembly jumps due to vibration during operation, the deviation caused by the jump can be corrected, the transmission shaft returns to the original position, good transmission is facilitated, the tower fan runs well, and air is blown outwards.

On the other hand, the tower fan is convenient for modularization of each fan body component of the tower fan by arranging the butt joint component, so that the tower fan is convenient to assemble and disassemble, and is convenient to transport.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:

fig. 1 is a schematic structural view of a tower fan according to an exemplary embodiment of the present utility model.

Fig. 2 is an exploded view of a tower fan according to an exemplary embodiment of the present utility model.

Fig. 3 is a schematic cross-sectional view of a tower fan according to an exemplary embodiment of the present utility model.

Fig. 4 is a schematic view of a tower fan (fan assembly with the outer shell removed) according to an exemplary embodiment of the present utility model.

Fig. 5 is a schematic view of a part of the structure of a tower fan according to an exemplary embodiment of the present utility model.

Fig. 6 is an exploded view of a docking assembly of a tower fan in accordance with an exemplary embodiment of the present utility model.

Fig. 7 is a schematic structural view of a rectifying member of a tower fan according to an exemplary embodiment of the present utility model.

Fig. 8 is a schematic structural view of a butt joint of a tower fan according to an exemplary embodiment of the present utility model.

Fig. 9 is a schematic cross-sectional view of a docking assembly and self-locking mechanism of a tower fan in accordance with an exemplary embodiment of the present utility model.

Fig. 10 is a schematic structural diagram of a docking mechanism and a self-locking mechanism of a tower fan according to an exemplary embodiment of the present utility model.

Fig. 11 is a schematic structural view of an interface seat of a tower fan according to an exemplary embodiment of the present utility model.

Fig. 12 is a schematic structural view of a fixing base of a tower fan according to an exemplary embodiment of the present utility model.

Fig. 13 is a schematic structural view of a locking pin of a tower fan according to an exemplary embodiment of the present utility model.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present utility model and are not to be construed as limiting the present utility model.

As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless expressly stated otherwise, as understood by those skilled in the art. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may also be present. Further, "connected" or "coupled" as used herein may include wirelessly connected or wirelessly coupled. The term "and/or" as used herein includes all or any element and all combination of one or more of the associated listed items.

It will be understood by those skilled in the art that all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs unless defined otherwise. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

The utility model provides a tower fan, which is provided with a plurality of fan body components, wherein the fan body components are connected through a butt joint component, so that the plurality of fan body components of the tower fan are modularized, and the butt joint component can reduce the problems of center dislocation, running jump and the like caused by respective transmission shafts of the two fan body components which are in butt joint, so that the tower fan can run stably.

In an exemplary embodiment of the present utility model, referring to fig. 1, the tower fan 100 includes a base 110 and a fan 120, the fan 120 is disposed on the base 110, and the base 110 and the fan 120 are disposed along a first axis. The fan 120 includes a plurality of fan assemblies 130, and the plurality of fan assemblies 130 are abutted to each other along a first axis to form the fan 120. Preferably, the fan 120 is comprised of at least two fan assemblies 130.

The base 110 includes a chassis 111 and a base 112 disposed on the chassis 111, and the fan 120 is disposed on the base 112. Referring to fig. 2 and 3, the base 112 includes a housing 1121, a receiving groove 1122 is formed in the housing 1121, a motor 113 is disposed in the receiving groove 1122, and the motor 113 is used for driving the fan 120 to supply air to the outside.

The plurality of fan assemblies 130 of the fan 120 are abutted to each other along the first axis, and two adjacent fan assemblies 130 are connected by the abutting assembly 140. The fan assembly 130 includes a housing 131 and a wind wheel 132, wherein an interface channel 133 is formed in the housing 131, and the wind wheel 132 is disposed in the interface channel 133. An air outlet 134 is arranged on the side wall of the shell 131, the wind wheel 132 rotates to generate wind, and the wind is sent outwards through the air outlet 134. A transmission shaft 135 is arranged in the wind wheel 132, and the transmission shaft 135 is directly or indirectly connected with an output shaft of the motor 113 to receive the torque output by the motor 113 and drive the wind wheel 132 to rotate through the transmission shaft 135.

After the basic structure of the detachable tower fan is explicitly related, the following description will be made with reference to fig. 4 and 5 of the docking assembly 140 of the present utility model, where two adjacent fan assemblies 130 are connected by the docking assembly 140, the docking assembly 140 includes two docking mechanisms 141, and the two docking mechanisms 141 are respectively disposed on the two fan assemblies 130, and the two docking mechanisms 141 are connected to connect the two fan assemblies 130.

Specifically, the docking mechanism 141 is disposed in the interface channel 133 of the housing 131 of the fan assembly 130, and is disposed at the top or bottom of the interface channel 133. Referring to fig. 5 and 6, the docking mechanism 141 includes a correcting member 142 and a docking member 143, where the correcting member 142 and the docking member 143 are disposed along the first axis. Referring to fig. 7, the correcting member 142 is provided with a through rotation hole 1421, and referring to fig. 8, the abutting member 143 is provided with a connection hole 1431, and the central axes of the rotation hole 1421 and the connection hole 1431 are coincident with the first axis. Referring to fig. 5, the drive shaft 135 of the fan assembly 130 passes through the rotation hole 1421 along the first axis and into the connection hole 1431.

Referring to fig. 7 and fig. 9, the correcting member 142 is made of a flexible material, and an annular correction groove 1422 is further provided on the correcting member 142, where the annular correction groove 1422 is disposed outside the rotation hole 1421, and there is a space between the annular correction groove 1422 and the rotation hole 1421. When the transmission shaft 135 passing through the rotation hole 1421 is vibrated and deflected to one side of the correcting member 142, the transmission shaft 135 compresses the annular correction groove 1422 along the deflection direction, and the annular correction groove 1422 is made of flexible material and has a groove-shaped structure, so as to have a reaction force to push the transmission shaft 135 back to the original position, so that the transmission shaft 135 can well receive the torque output by the motor 113, and the wind wheel 132 is driven to rotate smoothly.

Referring to fig. 6 and 9, a bearing groove 1423 is further formed in the rotation hole 1421, an oil-containing bearing 144 is disposed in the bearing groove 1423, and the transmission shaft 135 passes through a bearing hole (not shown) of the oil-containing bearing 144 while passing through the rotation hole 1421. Through the oil-containing bearing 144, the transmission shaft 135 can well rotate, and the transmission shaft 135 is separated from the rotation hole 1421, so that friction between the transmission shaft 135 and the rotation hole 1421 is avoided, and the correcting element 142 is damaged.

Referring to fig. 9, the bearing groove 1423 includes two openings 1425 and a groove body 1426 disposed between the two openings 1425, the cross-sectional area of the groove body 1426 is larger than the cross-sectional area of the opening 1425, the oil-containing bearing 144 is disposed in the groove body 1426, so that the oil-containing bearing 144 is difficult to separate from the bearing groove 1423, and structural stability is maintained, so that the oil-containing bearing 1423 is stably engaged with the transmission shaft 135 for transmission.

Further, the width of the cross section of the opening 1425 is smaller than the width of the cross section of the groove 1426, and the width of the cross section of the oil-containing bearing 144 is larger than the width of the cross section of the opening 1425. In this embodiment, the minimum width of the cross-section of the oil-containing bearing 144 is also greater than the width of the cross-section of the opening 1425 so that the oil-containing bearing 144 does not come out of the bearing groove 1423.

The transmission shaft 135 extends into the connection hole 1431 of the docking member 143, and the transmission shaft 135 is fixedly connected with the connection hole 1431, so that the transmission shaft 135 drives the docking member 143 to rotate when rotating. Preferably, the connecting hole 1431 is a through hole or a blind hole.

In one embodiment, referring to fig. 6 and 9, the section of the transmission shaft 135 inserted into the connection hole 1431 (referred to as the connection section 1351) is provided with external threads, and the connection hole 1431 is provided with internal threads, so that the connection section 1351 is in threaded connection with the connection hole 1431. Alternatively, the cross section of the connecting section 1351 is not circular, and the cross section of the connecting hole 1431 corresponds to the cross section of the connecting section 1351. Preferably, the cross section of the connecting section 1351 is rectangular.

Referring to fig. 6, 8 and 9, the docking member 143 is further provided with a connection portion 1432, and the connection portion 1432 is disposed away from the correcting member 142 and does not face the correcting member 142. The connecting portion 1432 is provided with a plurality of engaging pieces 1433, and the engaging pieces 1433 are sequentially arranged clockwise or counterclockwise. The connection portion 1432 is configured to be engaged with the connection portion 1432 of the docking member 143 of the docking mechanism 141. When the docking member 143 is driven to rotate by the transmission shaft 135, the docking member 143 can drive the docking member 143 of the docking mechanism 141 adjacent to the docking member 143 to rotate, so as to drive the transmission shaft 135 of the adjacent fan assembly 130, which is inserted on the docking member 143, to rotate, and further drive the wind wheel 132 of the adjacent fan assembly 130 to rotate.

After the docking mechanism related to the tower fan is specified, taking the tower fan shown in fig. 1 as an example, the arrangement position and the arrangement manner of the docking mechanism in the tower fan are specifically described. Specifically, referring to fig. 1, two adjacent fan assemblies are referred to as a first fan assembly 150 and a second fan assembly 160, a docking mechanism disposed on the first fan assembly 150 is referred to as a first docking mechanism 151, a docking mechanism disposed on the second fan assembly 160 is referred to as a second docking mechanism 161, and the first docking mechanism 151 and the second docking mechanism 161 are connected to form a docking assembly 140.

Referring to fig. 5, 6 and 9, the first wind wheel 152 of the first fan assembly 150 is provided with a first transmission shaft 153, and the first transmission shaft 153 sequentially passes through a rotation hole 1541 on the first correcting member 154 and a bearing hole on the first oil-containing bearing 156 of the first docking mechanism 151, and extends into a connection hole 1551 of the first docking member 155; the second wind wheel 162 of the second fan assembly 160 is provided with a second transmission shaft 163, and the second transmission shaft 163 sequentially passes through a rotation hole 1641 on the second correcting member 164 of the second docking mechanism 161 and a bearing hole of the second oil-containing bearing 166, and extends into a connection hole 1651 of the second docking member 165.

Referring to fig. 6 and 8, the plurality of locking tabs 1553 of the first docking member 155 are disposed in a clockwise direction, and the plurality of locking tabs 1653 of the second docking member 165 are disposed in a counterclockwise direction. The connecting portion of the first docking member 155 is opposite to the connecting portion of the second docking member 165, and the plurality of engaging pieces 1553 of the first docking member 155 are engaged with the plurality of engaging pieces 1653 of the second docking member 165, so that the first docking member 155 is linked with the second docking member 165, that is, the first docking member 155 can drive the second docking member 165 to rotate, or the second docking member 165 can drive the first docking member 155 to rotate. Preferably, a connecting wall 1554 is disposed on the outer side of the clamping piece 1553 of the first docking member 155, and the connecting wall 1554 is sequentially connected with the plurality of clamping pieces 1553 of the first docking member 155, so as to maintain the structural stability of the first docking member 155 and facilitate stable clamping with the second docking member 165.

In an exemplary embodiment of the present utility model, referring to fig. 1 and 3, the first fan assembly 150 is closer to the base 110 than the second fan assembly 160, and after the first transmission shaft 153 of the first fan assembly 150 receives the torque output by the motor 113, the first transmission shaft 153 outputs the torque to the second transmission shaft 163 of the second fan assembly 160 through the docking assembly 140, so that the second transmission shaft 163 rotates.

Specifically, referring to fig. 9, since the first transmission shaft 153 is inserted into the connection hole 1551 of the first docking member 155, when the first transmission shaft 153 rotates, the first transmission shaft 153 drives the first wind wheel 152 of the first fan assembly 150 to rotate, and the first transmission shaft 153 also drives the first docking member 155 to rotate; because the first butt joint member 155 is clamped with the second butt joint member 165, the first butt joint member 155 drives the second butt joint member 165 to rotate; because the second transmission shaft 163 of the second fan assembly 160 is inserted into the connection hole 1651 of the second docking member 165, the second docking member 165 drives the second transmission shaft 163 to rotate, and the second transmission shaft 163 drives the second wind wheel 162 of the second fan assembly 160 to rotate.

Since the first transmission shaft 153 and the second transmission shaft 163 are not directly connected, but indirectly transmitted through the first docking member 155 and the second docking member 165, when the first transmission shaft 153 and the second transmission shaft 163 transmit torque, the first axis may be deviated due to vibration, so that the first transmission shaft 153 and the second transmission shaft 163 cannot transmit torque well.

Specifically, when the fan assembly 130 is docked, it may happen that the transmission shaft 135 is offset from the first axis, but because the transmission shaft 135 is inserted into the correcting member 142, the transmission shaft 135 will apply a moment to compress the annular aligning groove 1422 of the correcting member 142 in the offset direction thereof, so that the annular aligning groove 1422 is deformed. Because the correcting element 142 is made of flexible material, the annular correcting groove 1422 generates a reaction force opposite to the deviation direction of the transmission shaft 135 after being extruded and deformed by the transmission shaft 135, and the transmission shaft 135 is rebounded to the first axis, so that the transmission shaft 135 is reset, and good transmission torque of the transmission shaft 135 is facilitated. And the correcting element 142 can counteract vibration and noise generated by the dislocation of the transmission shaft 135.

Among the plurality of fan assemblies 130 of the fan 120 of the tower fan 100, the butt joint assemblies 140 are disposed between two adjacent fan assemblies 130, so that the plurality of fan assemblies 130 are mutually butt-jointed to form the fan 120.

After the manner of assembly of the removable tower fan and the associated principles are clarified, the self-locking mechanism 170 is described in detail below for securing adjacent fan assemblies 130 without being easily separated from one another. In an exemplary embodiment of the present utility model, referring to fig. 4 and fig. 9, a self-locking mechanism 170 is further disposed in the fan assembly 130, and the self-locking mechanism 170 is used to lock two adjacent fan assemblies 130, so that the two adjacent fan assemblies 130 can be stably abutted. The first fan assembly 150 and the second fan assembly 160 are locked by the self-locking mechanism 170, and the self-locking mechanism 170 is disposed at the top of the interface channel 133 of the housing 131 of the first fan assembly 150.

Referring to fig. 10, the self-locking mechanism 170 includes an interface seat 171, a locking pin 172, and a collar 173. The interface seat 171 is disposed at the top of the interface channel 133, and the interface seat 171 is fixed to the housing 131 of the first fan assembly 150. The first surface 1718 of the interface seat 171 facing the second fan assembly 160 is recessed toward the base 110 to form an interface groove 1711.

Referring to fig. 11, the interface groove 1711 is divided into a first interface groove 1712 and a second interface groove 1713, the central axis of the second interface groove 1713 coincides with the first axis, and the second interface groove 1713 is disposed at the geometric center of the first surface 1718. The first interface groove 1712 is a ring groove disposed outside the second interface groove 1713, and the first interface groove 1712 is disposed around the second interface groove 1713.

Referring to fig. 9 and 12, a fixing seat 174 is disposed at the bottom of the interface channel 133 of the second fan assembly 160, and the fixing seat 174 is fixed to the housing 131 of the second fan assembly 160. The fixing base 174 is provided with an annular insertion wall 1741, and the insertion wall 1741 is inserted into the first interface groove 1712, so that the interface seat 171 is assembled with the fixing base 174.

The fixing seat 174 is further provided with a fixing groove 1742, a central axis of the fixing groove 1742 coincides with the first axis, the fixing groove 1742 is opposite to the second interface groove 1713 of the interface seat 171, the fixing groove 1742 and the second interface groove 1713 are matched to form a accommodating cavity 175, and the accommodating cavity 175 is used for accommodating the docking assembly 140 for docking the first fan assembly 150 with the second fan assembly 160.

Specifically, referring to fig. 7, 12 and 9, an annular clamping groove 1424 is formed on the outer sidewall of the correcting element 142, the groove bottom of the first interface groove 1712 corresponds to the hollow annular clamping groove 1424 to form a first clamping wall 1714, and the groove bottom of the fixing groove 1742 of the fixing seat 174 corresponds to the hollow annular clamping groove 1424 to form a second clamping wall 1743.

The annular clamping groove 1424 of the first correcting element 154 of the first abutting mechanism 151 of the abutting assembly 140 is clamped with the first clamping wall 1714 on the second interface groove 1713 of the interface seat 171, the annular clamping groove 1424 of the second correcting element 164 of the second abutting mechanism 161 is clamped with the second clamping wall 1743 of the fixing groove 1742 of the fixing seat 174, so that the fixing seat 174 is stably connected with the interface seat 171, the structural stability of the accommodating cavity 175 is maintained, and the accommodating cavity 175 can stably accommodate the abutting assembly 140, so that the abutting assembly 140 can stably connect the first fan assembly 150 with the second fan assembly 160.

Moreover, since the interface seat 171 is fixed to the housing 131 of the first fan assembly 150, the fixing base 174 is fixed to the housing 131 of the second fan assembly 160, and the insertion wall 1741 of the fixing base 174 is inserted into the first interface groove 1712 of the interface seat 171, so that the interface seat 171 is assembled with the fixing base 174.

Referring to fig. 10, the collar 173 is disposed on the outer side of the interface seat 171, and the collar 173 grips the interface seat 171, and the locking pin 172 is disposed between the collar 173 and the interface seat 171. The side wall of the interface seat 171 is provided with a protruding annular wall 1715, and a through hole 1716 is provided at a position of the interface seat 171 corresponding to the locking pin 172, and the through hole 1716 extends from the annular wall 1715 into the first interface slot 1712. The locking pin 172 is inserted into the first interface slot 1712 through the through hole 1716 to abut against the insertion wall 1741 of the fixing base 174 inserted into the first interface slot 1712, so that the fixing base 174 is fixedly connected to the interface seat 171, and the fixing base 174 is separated from the interface seat 171 by releasing the locking pin 172, so that the two adjacent fan assemblies 130 are detached.

The inner wall 1731 of the collar 173 is provided with a step 1732, and the step 1732 is disposed along the axial direction of the collar 173. The step 1732 includes an unlocking surface 1733 and a locking surface 1734, the locking surface 1734 is closer to the annular wall 1715 of the interface seat 171 than the unlocking surface 1733, and the unlocking surface 1733 is connected to the locking surface 1734 and is in smooth transition.

Referring to fig. 13, the locking pin 172 includes a pin 1721 and a cap 1722 disposed at one end of the pin 1721, where the other end of the pin 1721 (referred to as a locking end 1723) is configured to abut against a socket wall 1741 disposed in the first interface slot 1712. Referring to fig. 9, when the end surface of the cap 1722 abuts against the step 1732 and the cap 1722 abuts against the locking surface 1734 of the step 1732, the locking end 1723 of the pin 1721 abuts against the plugging wall 1741, so as to lock the fixing base 174 by abutting against the plugging wall 1741, so that the fixing base 174 is locked with the interface seat 171, that is, the first fan assembly 150 is locked with the second fan assembly 160. The collar 173 is rotated to separate the locking surface 1734 of the step 1732 from the cap 1722, and to separate the unlocking surface 1733 of the step 1732 from the cap 1722, when the cap 1722 is abutted against the unlocking surface 1733 of the step 1732, the locking end 1723 of the pin 1721 is no longer abutted against the plugging wall 1741, so that the fixing base 174 is separated from the interface base 171, that is, the first fan assembly 150 is separated from the second fan assembly 160, so as to facilitate the disassembly of the first fan assembly 150 and the second fan assembly 160.

Referring to fig. 13, the side surface of the cap 1722 further includes a recess 1724, an outer protrusion 1725 is protruding from the wall of the recess 1724, the outer protrusion 1725 is suspended in the recess 1724, and the outer protrusion 1725 protrudes out of the cap 1722. Because of the outer protruding block 1725, the maximum outer diameter of the cap 1722 is larger than the inner diameter of the through hole 1716, so that the cap 1722 is in interference fit with the through hole 1716, and the cap 1722 is not easy to fall from the through hole 1716.

Referring to fig. 9 and 11, the through hole 1716 is further provided with a notch 1717, the outer protrusion 1725 is provided with a protrusion 1726, and the protrusion 1726 and the notch 1717 can be elastically clamped. When the locking pin 172 is not in contact with the plugging wall 1741, i.e. unlocked, the protrusion 1726 of the outer protrusion 1725 enters the notch 1717, so that the cap 1722 is in clearance fit with the through hole 1716, so that the locking pin 172 is pulled, and the fixing base 174 is unlocked from the interface base 171.

When the locking fixing seat 174 and the interface seat 171 are needed, the locking pin 172 is pushed toward the direction of the plugging wall 1741, the locking end 1723 is abutted against the plugging wall 1741, so that the cap 1722 drives the protrusion 1726 to leave the notch 1717 and enter the through hole 1716, so that the cap 1722 and the through hole 1716 are in interference fit, the locking pin 172 is not easy to loosen, the locking pin 172 is conveniently and stably abutted against the plugging wall 1741, the fixing seat 174 is fixed with the interface seat 171, and the abutting assembly 140 disposed in the accommodating cavity 175 formed by the fixing seat 174 and the interface seat 171 is also fixed, so that the first fan assembly 150 is stably abutted against the second fan assembly 160.

In one embodiment, referring to fig. 9, the pin body 1721 of the locking pin member 172 is further sleeved with a return spring 176, and when the pin body 1721 is far away from the plugging wall 1741, the return spring 176 is compressed, so that the return spring 176 has an elastic force towards the plugging wall 1741, and the difficulty of pushing the locking end 1723 of the locking pin member 172 towards the plugging wall 1741 is reduced. And when the locking pin 172 abuts against the plug wall 1741, the return spring 176 can also provide elastic force, so that the locking pin 172 stably abuts against the plug wall 1741, and the first fan assembly 150 and the second fan assembly 160 are locked with each other.

In one embodiment, the self-locking mechanism 170 is provided with a plurality of locking pin members 172, and the first fan assembly 150 is stably abutted with the second fan assembly 160 by the plurality of locking pin members 172 to stably lock the fixed seat 174.

In one embodiment, referring to fig. 10, a force applying protrusion 1735 is provided on an outer wall of the collar 173, and the collar 173 is pushed to rotate by applying a force to the force applying protrusion 1735, so that the collar 173 drives the step 1732 provided thereon to rotate, thereby locking or unlocking the first fan assembly 150 and the second fan assembly 160.

In a further embodiment, in conjunction with fig. 1, the housing 131 of the first fan assembly 150 forms a sliding groove 1311 corresponding to the force application protrusion 1735, and the sliding groove 1311 is a through groove. Referring to fig. 10, the force applying protrusion 1735 is provided with a force applying groove 1736, a sliding member 177 is disposed corresponding to the force applying groove 1736, the sliding member 177 is fixedly connected to the force applying groove 1736, and the force is applied to the sliding member 177 to drive the force applying protrusion 1735 to move.

In one embodiment, one of the two adjacent fan assemblies 130 is provided with a self-locking mechanism 170, so that the two adjacent fan assemblies 130 are locked by the self-locking mechanism 170.

In one embodiment, the docking assembly 140 and the self-locking mechanism 170 are also disposed between the base 110 and the attached fan assembly 130. The second docking mechanism 161 of the docking assembly 140 is disposed in the housing 1121 of the base 110, an output shaft of the motor 113 is connected to a connection hole 1651 on the second docking member 165 of the second docking mechanism 161, and the first docking mechanism 151 of the docking assembly 140 is disposed in the interface channel 133 of the housing 131 of the fan assembly 130.

The self-locking mechanism 170 is disposed on the fan assembly 130, and the self-locking mechanism 170 may be disposed between the base 110 and the connected fan assembly 130, so that the base 110 and the connected fan assembly 130 are stably connected, and the base 110 and the connected fan assembly 130 are convenient to assemble and disassemble.

The arrangement of the docking assembly 140 and the self-locking mechanism 170 between the base 110 and the connected fan assembly 130 can be referred to the above installation manner of the docking assembly 140 and the self-locking mechanism 170 between the first fan assembly 150 and the second fan assembly 160, which is omitted for brevity.

In one embodiment, the docking mechanism 141 and the self-locking mechanism 170 may be disposed at both ends of the fan assembly 130.

In summary, the base of the tower fan and the plurality of fan assemblies are modularized, so that the tower fan is convenient to assemble and disassemble, and the fan assemblies are butted by the butt joint assemblies, so that good transmission can be realized among the fan assemblies, and the jump of the fan assemblies during the operation of the transmission shaft is reduced, so that the tower fan can operate well.

The above description is only illustrative of the preferred embodiments of the present utility model and of the principles of the technology employed. It will be appreciated by persons skilled in the art that the scope of the utility model referred to in the present utility model is not limited to the specific combinations of the technical features described above, but also covers other technical features formed by any combination of the technical features described above or their equivalents without departing from the inventive concept described above. Such as the above-mentioned features and the features having similar functions (but not limited to) of the utility model.

Although the subject matter has been described in language specific to structural features and/or methodological acts, it is to be understood that the subject matter defined in the appended claims is not necessarily limited to the specific features or acts described above. Rather, the specific features and acts described above are example forms of implementing the claims.

Claims (11)

1. The utility model provides a tower fan, its characterized in that, including the base and the at least two fan body subassemblies of coaxial setting, be connected through the butt joint subassembly between two adjacent fan body subassemblies, the butt joint subassembly includes two docking mechanism, and these two docking mechanism are respectively for setting up the first docking mechanism on first fan body subassembly and set up the second docking mechanism on the second fan body subassembly, first docking mechanism is connected with the transmission shaft of first fan body subassembly, second docking mechanism is connected with the transmission shaft of second fan body subassembly, and first docking mechanism links with second docking mechanism to transmit moment each other.

2. The tower fan of claim 1, wherein the first docking mechanism and the second docking mechanism each include a straightening member, the drive shaft passing through a rotational aperture provided by the straightening member, the straightening member being made of a flexible material, the straightening member further being provided with an annular straightening groove disposed around the rotational aperture.

3. The tower fan according to claim 2, wherein the outer side wall of the rectifying member is provided with an annular clamping groove for clamping with an external member.

4. The tower fan according to claim 2, wherein a bearing groove is further provided in the rotation hole, an oil-containing bearing is provided in the bearing groove, and the transmission shaft also passes through the bearing hole of the oil-containing bearing.

5. The tower fan of claim 2, wherein the first docking mechanism includes a first docking member, the drive shaft on the first fan assembly is inserted into the connection hole of the first docking member, the second docking mechanism includes a second docking member, the drive shaft on the second fan assembly is inserted into the connection hole of the second docking member, and the first docking member and the second docking member are connected to each other.

6. The tower fan of claim 5, wherein the first abutting member is provided with a plurality of clockwise engaging pieces, the second abutting member is provided with a plurality of counterclockwise engaging pieces, and the plurality of engaging pieces of the first abutting member are engaged with the plurality of engaging pieces of the second abutting member.

7. The tower fan according to any of the claims 1-6, wherein a self-locking mechanism is further provided between the two adjacent fan assemblies, said self-locking mechanism being adapted to lock the two adjacent fan assemblies so that the two fan assemblies are stably connected.

8. The tower fan according to claim 7, wherein the self-locking mechanism comprises an interface seat, a locking pin and a collar, wherein an interface groove is formed in one surface of the interface seat, an annular wall body is arranged in a protruding mode on the other surface of the interface seat, the locking pin penetrates through the annular wall body to enter the interface groove, the collar is hooped on the periphery of the annular wall body to press the locking pin, the interface seat of the self-locking mechanism is fixed in an interface channel provided by the first fan assembly, and the plug-in wall of the second fan assembly is inserted into the interface groove of the interface seat.

9. The tower fan according to claim 8, wherein the locking pin comprises a pin body and a cap body positioned at one end of the pin body, an outer protruding block is arranged on the side surface of the cap body, the maximum outer diameter of the cap body is in interference fit with a through hole arranged on the annular cavity, and the locking pin passes through the through hole.

10. The tower fan of claim 8, wherein the collar inner wall forms a step in a circumferential direction, the step including an unlocking surface and a locking surface, the unlocking surface and the locking surface transitioning smoothly.

11. The tower fan as claimed in claim 8, wherein the interface base has a second interface slot therethrough, and the transmission shaft of the second fan assembly is connected to the second interface slot of the interface base, and is coupled to the transmission shaft of the first fan assembly through the second interface slot.