Universal fan

Abstract

The utility model discloses a universal fan. The universal fan comprises a machine head assembly, a fan assembly and a universal wheel, the universal wheel comprises a first rotating part and a second rotating part which are connected, and one side, in the first direction, of the machine head assembly is connected with the fan assembly through the first rotating part; a rotating groove is formed in the top of the machine base in the second direction, the rotating groove is in interference fit with the second rotating part, the surface, making contact with the outer surface of the second rotating part, of the inner wall of the rotating groove is a spherical surface, and the second rotating part can rotate in the rotating groove; the included angle between the axis of the fan assembly in the first direction and the axis of the machine base in the second direction is adjustable. Thus, the second rotating part can rotate in the rotating groove according to any direction, the fan assembly can rotate in any direction, the fanning range of the fan assembly is increased, the universal fan can meet the fanning requirement of a user in any direction, and the experience feeling of the user is improved.

Description

Technical Field

[0001] This application belongs to the technical field of fans, and particularly relates to a universal fan. Background Art

[0002] With the continuous increase in carbon emissions, the probability of extreme weather occurrences is also increasing. As a result, the application scenarios of fans are continuously expanding, and the types of fans are also constantly evolving, such as handheld fans, small desktop fans, clip fans, or standing fans, etc. With the continuous increase in the application scenarios of small fans, fans also need to continuously adapt to changing application scenarios. Currently, handheld fans, small desktop fans, clip fans, or standing fans, etc. can only achieve manual up-and-down shaking, resulting in limited adjustment of the fan's air-blowing range, thereby reducing the user experience. Summary of the Utility Model

[0003] The purpose of the embodiments of this application is to provide a universal fan, which can solve the problem in the prior art that fans can only achieve manual up-and-down shaking, resulting in limited adjustment of the fan's air-blowing range.

[0004] The embodiments of this utility model provide a universal fan, which includes:

[0005] A head assembly, a fan assembly, and a universal wheel. The universal wheel includes a connected first rotating part and a second rotating part. The head assembly is connected to the fan assembly through the first rotating part on one side in the first direction;

[0006] A base. A rotating groove is provided at the top of the base in the second direction. The rotating groove is in interference fit with the second rotating part. Among them, the surface of the inner wall of the rotating groove in contact with the outer surface of the second rotating part is a spherical surface. The second rotating part can rotate in the rotating groove. The included angle between the axis of the fan assembly in the first direction and the axis of the base in the second direction is adjustable. The first direction and the second direction are two intersecting directions.

[0007] Optionally, both the first rotating part and the second rotating part are spherical, and the rotating groove is a spherical groove.

[0008] Optionally, a spherical through-hole is provided at the bottom of the head assembly in the second direction. The first rotating part passes through the spherical through-hole and is connected to the second rotating part.

[0009] Optionally, the fan assembly includes a wind blade, a motor, and a grille;

[0010] The wind blades are connected to the motor. The mesh cover includes a receiving portion and a rotating portion. The rotating portion is connected to one side of the receiving portion in the first direction. The receiving portion includes a receiving cavity. The motor and the mesh cover are both fixed in the receiving cavity. The rotating portion is embedded in the nose assembly and fixedly connected to the end of the first rotating portion in the second direction.

[0011] Optionally, the motor includes a power cord, and the power cord passes through the rotating portion and the universal wheel and is disposed inside the machine base.

[0012] Optionally, a first wire groove is formed inside the rotating portion, a second wire groove is formed inside the universal wheel, the first wire groove communicates with the second wire groove, the second wire groove communicates with the inner cavity of the machine base, and the power cord is disposed in the first wire groove and the second wire groove.

[0013] Optionally, a wire hole is provided at the bottom of the rotating groove in the second direction, a controller is provided at the bottom of the machine base in the second direction, and the power cord passes through the wire hole and is electrically connected to the controller.

[0014] Optionally, the universal fan further includes a positioning member. The positioning member is detachably connected to the rotating groove. When the included angle between the axis of the fan assembly in the first direction and the axis of the machine base in the second direction reaches a preset included angle, the positioning member is connected to the rotating groove and abuts against the outer surface of the second rotating portion.

[0015] Optionally, a threaded hole is provided on one side of the rotating groove in the first direction. The positioning member is a knob, and the knob includes a screw rod which is threadedly connected in the threaded hole.

[0016] Optionally, the rotating groove is provided with a first mounting groove and a second mounting groove which are opposite to each other. The first mounting groove and the second mounting groove are in opposite positions in the first direction, or the first mounting groove and the second mounting groove are in opposite positions in the third direction;

[0017] Wherein, the third direction intersects with the first direction and the second direction at the same time.

[0018] Optionally, the first mounting groove extends to the top of the rotating groove in the second direction, and the second mounting groove extends to the top of the rotating groove in the second direction.

[0019] Optionally, at least a part of the second rotating portion protrudes from the top of the rotating groove.

[0020] Optionally, the area of the inner wall of the rotation groove is greater than half of the area of the outer wall of the second rotation part and less than three - fourths of the area of the outer wall of the second rotation part.

[0021] As can be seen from the above - mentioned embodiments, in the embodiments of the present utility model, since the universal wheel includes a connected first rotation part and a second rotation part, the nose assembly is movably connected to the fan assembly through the first rotation part on one side in the first direction, and a rotation groove is provided at the top of the machine base in the second direction. The rotation groove and the second rotation part are in interference fit. Therefore, the rotation of the second rotation part in the rotation groove can drive the rotation of the fan assembly. Also, since the surface of the inner wall of the rotation groove and the outer surface of the second rotation part in contact is a spherical surface, the second rotation part can rotate in the rotation groove, and the angle between the axis of the fan assembly in the first direction and the axis of the machine base in the second direction is adjustable. Therefore, the second rotation part can rotate in any direction in the rotation groove, and the fan assembly can rotate in any direction, thereby increasing the air - blowing range of the fan assembly, and further enabling the universal fan to adapt to the air - blowing requirements of the user in any direction, so as to improve the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following - described drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0023] Figure 1 is an exploded structural schematic diagram of the universal fan provided by the embodiment of the present application;

[0024] Figure 2 is an installation structural schematic diagram of the universal fan provided by the embodiment of the present application;

[0025] Figure 3 is a partial structural schematic diagram of the universal fan provided by the embodiment of the present application;

[0026] Figure 4 is a partial structural schematic diagram of the universal fan provided by the embodiment of the present application;

[0027] Figure 5 is a structural schematic diagram of the rotation groove of the universal fan provided by the embodiment of the present application;

[0028] Figure 6 is an installation schematic diagram of the positioning member and the rotation groove included in the universal fan provided by the embodiment of the present application;

[0029] Figure 7It is the third partial schematic diagram of the universal fan provided by the embodiment of the present application.

[0030] Reference numerals:

[0031] 1: Head assembly; 11: Spherical through groove; 2: Fan assembly; 21: Blades; 22: Motor; 23: Mesh cover; 231: Accommodating part; 232: Rotating part; 2321: First wire groove; 3: Universal wheel; 31: First rotating part; 32: Second rotating part; 33: Second wire groove; 4: Machine base; 41: Rotating groove; 411: Wire hole; 412: First installation groove; 413: Second installation groove; 5: Power cord; 6: Positioning part. Detailed implementation manners

[0032] Next, the technical solutions in the embodiments of the present application will be clearly described in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of the present application.

[0033] The terms "first", "second", etc. in the description and claims of the present application are used to distinguish similar objects, rather than to describe a specific order or sequence. It should be understood that such used data can be interchanged under appropriate circumstances so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first", "second", etc. generally belong to the same category, and the number of objects is not limited. For example, the first object can be one or multiple. In addition, "and / or" in the description and claims means at least one of the connected objects, and the character " / " generally means an "or" relationship between the associated objects before and after.

[0034] Next, the universal fan in the embodiment of the present utility model will be described in detail in conjunction with the drawings. Figure 6 It is the installation schematic diagram of the positioning part and the rotating groove included in the universal fan provided by the embodiment of the present application. Figure 2 It is the installation structure schematic diagram of the universal fan provided by the embodiment of the present application. As Figure 1 and Figure 2 shown, the universal fan includes:

[0035] A head assembly 1, a fan assembly 2 and a universal wheel 3. The universal wheel 3 includes a connected first rotating part 31 and a second rotating part 32. The head assembly 1 is connected to the fan assembly 2 through the first rotating part 31 on one side in the first direction X;

[0036] The base 4 is provided with a rotating groove 41 at the top in the second direction Z. The rotating groove 41 is in interference fit with the second rotating part 32. Among them, the surface where the inner wall of the rotating groove 41 contacts the outer surface of the second rotating part 32 is a spherical surface. The second rotating part 32 can rotate in the rotating groove 41. The included angle between the axis of the fan assembly 2 in the first direction X and the axis of the base 4 in the second direction Z is adjustable. The first direction X and the second direction Y are two intersecting directions.

[0037] As can be seen from the above embodiments, in the embodiments of the present utility model, since the universal wheel 3 includes a connected first rotating part 31 and a second rotating part 32, one side of the nose assembly 1 in the first direction X is connected to the fan assembly 2 through the first rotating part 31, and the base 4 is provided with a rotating groove 41 at the top in the second direction Z. The rotating groove 41 is in interference fit with the second rotating part 32. Therefore, the rotation of the second rotating part 32 in the rotating groove 41 can drive the rotation of the fan assembly 2. Also, since the surface where the inner wall of the rotating groove 41 contacts the outer surface of the second rotating part 32 is a spherical surface, the second rotating part 32 can rotate in the rotating groove 41, and the included angle between the axis of the fan assembly 2 in the first direction X and the axis of the base 4 in the second direction Z is adjustable. Therefore, the second rotating part 32 can rotate in the rotating groove 41 in any direction, and the fan assembly 2 can rotate in any direction, thereby increasing the air blowing range of the fan assembly 2, and further enabling the universal fan to adapt to the air blowing requirements of the user in any direction, so as to improve the user experience.

[0038] In the above embodiments, the nose assembly 1 is a structure connecting the fan assembly 2 and the base 4. The nose assembly 1 may include a housing and a fixing structure. The housing includes an installation cavity, and part of the structure of the fan assembly 2 and part of the structure of the universal wheel 3 can be accommodated in the installation cavity. The housing can be a cylindrical housing, a prismatic housing or other shaped housing structures. The housing is an open structure on one side in the first direction X for assembling with the fan assembly 2. At the same time, the housing can not only enhance the structural integrity of the universal fan, but also protect the internal structure of the housing to a certain extent and enhance the overall strength of the universal fan.

[0039] The universal wheel 3 is a component that connects the fan assembly 2 and the machine base 4 and enables the universal fan to rotate. The first rotating part 31 and the second rotating part 32 included in the universal wheel 3 can be an integral structure, or the first rotating part 31 and the second rotating part 32 can be a split structure. In the case where the first rotating part 31 and the second rotating part 32 are a split structure, the connection between the first rotating part 31 and the second rotating part 32 can be achieved by means such as snap connection, riveting, or welding, and the embodiments of the present invention do not limit this. The first rotating part 31 and the second rotating part 32 are coaxially arranged in the second direction Z, that is, the first rotating part 31 is located at the top of the second rotating part 32 in the second direction Z. The first rotating part 31 passes through the bottom of the machine head assembly 1 in the second direction Z and is connected to the fan assembly 2 connected inside the machine head assembly 1. The connection between the first rotating part 31 and the fan assembly 2 can be achieved by means such as welding, threaded connection, snap connection, etc., so that the fan assembly 2 can move synchronously with the first rotating part 31.

[0040] The machine base 4 movably connected to the second rotating part 32 is a component that provides support for the universal fan. The machine base 4 can include a support rod and a base. The support rod and the base are connected, and the base is located at the bottom of the support rod in the second direction Z. The support rod can be a square cylindrical structure, a circular cylindrical structure, or a cylindrical structure of other shapes. The base can be in a disc shape, so that the base has a larger support area, and at the same time, it is also convenient to arrange other components of the universal fan inside the base. The machine base 4 is provided with a rotating groove 41 at the top in the second direction Z. The rotating groove 41 is in the shape of a shell that opens at the top in the second direction Z. The rotating groove 41 can be an integral shell structure or a split shell structure, and the embodiments of the present invention do not limit this. In an exemplary embodiment, the rotating groove 41 can include a plurality of sheet-like structures that are wound around the circumference of the first axis, and the plurality of sheet-like structures enclose a shell shape. The first axis is the axis of the universal wheel 3. It should be noted that regardless of whether the rotating groove 41 is an integral shell structure or a split shell structure, the volume of the cavity structure enclosed by the rotating groove 41 can be enlarged so that the rotating groove 41 can be in interference fit with the second rotating part 32. In this embodiment, the outer shell of the rotating groove 41 can be a classroom structure with a certain degree of expansion to facilitate the installation of the second rotating part 32 in the rotating groove 41. In addition, in some embodiments, the machine base 4 provided by the embodiments of the present invention can include a support rod and a clamping member. The clamping member is connected to the support rod. The clamping member can include a first clamping part, a second clamping part, and an elastic member. One end of the first clamping part and one end of the second clamping part are connected to the support rod, and the first clamping member and the second clamping member are connected by the elastic member, so that the included angle between the first clamping member and the second clamping member is adjustable. In this way, the universal fan can be clamped on any component, such as at the corner of a table, at the head of a bed backrest, or at any clamping position in a vehicle, so that the application scenarios of the universal fan are not limited.

[0041] It should also be noted that the surface of the inner wall of the rotating groove 41 in contact with the outer surface of the second rotating part 32 is a spherical surface, and the second rotating part 32 can rotate within the rotating groove 41. That is to say, the rotation direction of the second rotating part 32 is not limited, and thus the second rotating part 32 can rotate relative to the rotating groove 41 in any direction. When the second rotating part 32 rotates in the rotating groove 41, the angle between the axis of the fan assembly 2 in the first direction X and the axis of the machine base 4 in the second direction Z changes, and thus the air outlet direction of the fan also changes accordingly. In addition, in the embodiment of the present invention, the change in the angle between the axis of the fan assembly 2 in the first direction X and the axis of the machine base 4 in the second direction Z can be understood as the fan assembly 2 being adjusted in different directions. For example, the fan assembly 2 is adjusted along the second direction Z (the fan assembly 2 is adjusted up and down), for example, the fan assembly 2 is adjusted along the first direction X (the fan assembly 2 is adjusted left and right), for example, the fan assembly 2 is adjusted along the third direction Y (the fan assembly 2 is adjusted back and forth). In addition to the adjustments in the above several directions, the reverse fan provided by the embodiment of the present invention can also meet the adjustment in the direction between any two directions. For example, the fan assembly 2 is adjusted in any direction between the first direction X and the second direction Z, the fan assembly 2 is adjusted in any direction between the first direction X and the third direction Y, the fan assembly 2 is adjusted in any direction between the second direction Y and the second direction Z. The specific adjustment direction of the reverse fan is determined according to the specific application scenario, and the embodiment of the present invention does not limit this.

[0042] Regarding the structures of the first rotating part 31 and the second rotating part 32, as Figures 3 to 7 shown, in some embodiments, both the first rotating part 31 and the second rotating part 32 are spherical, and the rotating groove 41 is a spherical groove.

[0043] In this embodiment, since both the first rotating part 31 and the second rotating part 32 are spherical, the universal wheel 3 forms a gourd-shaped shape. And when the rotating groove 41 is a spherical groove, it can be ensured that the surface of the inner wall of the rotating groove 41 in contact with the outer surface of the second rotating part 32 is a spherical surface. While enabling the second rotating part 32 to rotate relative to the rotating groove 41 in any direction, the resistance when the second rotating part 32 rotates in the rotating groove 41 can be reduced, and it is more labor-saving when adjusting the air blowing range of the fan assembly 2.

[0044] Furthermore, in some embodiments, a spherical through groove 11 is provided at the bottom of the nose assembly 1 in the second direction Z, and the first rotating part 31 passes through the spherical through groove 11 and is connected to the second rotating part 32.

[0045] In this embodiment, since a spherical through groove 11 is provided at the bottom of the nose assembly 1 in the second direction Z, and the first rotating part 31 passes through the spherical through groove 11 and is connected to the second rotating part 32, on the one hand, it is convenient to connect the first rotating part 31 and the fan assembly 2, and at the same time, it can provide a certain rotation margin for the universal wheel 3 during rotation, which is beneficial to maintaining the smoothness of the universal wheel 3 during rotation.

[0046] Regarding the structure of the fan assembly 2, in some embodiments, the fan assembly 2 includes a fan blade 21, a motor 22, and a mesh cover 23;

[0047] The fan blade 21 is connected to the motor 22. The mesh cover 23 includes a receiving portion 231 and a rotating portion 232. The rotating portion 232 is connected to one side of the receiving portion 231 in the first direction X. The receiving portion 231 includes a receiving cavity. Both the motor 22 and the mesh cover 23 are fixed in the receiving cavity. The rotating portion 232 is embedded in the nose assembly 1 and is fixedly connected to the end of the first rotating part 31 in the second direction Z.

[0048] In this embodiment, the fan blade 21 may include a blade and a rotating shaft. The rotating shaft may be connected to the driving shaft of the motor 22 through a coupling. When the motor 22 rotates at different speeds, it can drive the fan blade 21 to rotate at the same speed. The mesh cover 23 wraps the blade and the motor 22. On the one hand, it can provide an installation space for the blade and the motor 22, and on the other hand, through the mesh cover 23, it can avoid safety accidents caused by the rotation of the blade. The mesh cover 23 may include a receiving portion 231 and a rotating portion 232. The receiving portion 231 is a reticulated shell structure to facilitate the accommodation of the fan blade 21 and the motor 22. The connecting portion is a connecting arm structure provided on one side of the receiving portion 231 in the first direction X. Through the receiving portion 231, a bridge for connecting to the first rotating part 31 can be established. The rotating portion 232 can be embedded in the nose assembly 1, facilitating direct connection to the first rotating part 31 by means such as welding, bolt connection, and snap connection. In this way, through the above method, the assembly between the entire nose assembly 1, fan assembly 2, base, and universal wheel 3 can be made more compact, and the structure of the entire universal fan is relatively simple, facilitating the reduction of the manufacturing cost of the universal fan.

[0049] Furthermore, Figure 3 is one of the partial structural schematic diagrams of the universal fan provided by the embodiments of the present application. As Figure 3 shown, in some embodiments, the motor 22 includes a power cord 5, and the power cord 5 passes through the rotating portion 232 and the universal wheel 3 and is disposed inside the machine base 4.

[0050] In this embodiment, since the motor 22 includes a power cord 5, and the power cord 5 passes through the inside of the machine base 4 via the rotating part 232 and the universal wheel 3, it can be ensured that when the universal fan rotates, it can avoid rubbing against the power cord 5 and being damaged, thereby effectively extending the service life of the universal fan. It should be noted that the rotating part 232 and the universal wheel 3 can be provided with structures such as grooves, through holes or lead holes to enable the power cord 5 to pass through the rotating part 232 and the universal wheel 3 in sequence. The embodiments of the present invention do not limit this.

[0051] Further, as Figure 3 shown, in some embodiments, a first wire groove 2321 is provided inside the rotating part 232, a second wire groove 33 is provided inside the universal wheel 3, the first wire groove 2321 and the second wire groove 33 are communicated, the second wire groove 33 and the inner cavity of the machine base 4 are communicated, and the power cord 5 is arranged in the first wire groove 2321 and the second wire groove 33.

[0052] In this embodiment, since a first wire groove 2321 is provided inside the rotating part 232, a second wire groove 33 is provided inside the universal wheel 3, the first wire groove 2321 and the second wire groove 33 are communicated, the second wire groove 33 and the inner cavity of the machine base 4 are communicated, and the power cord 5 is arranged in the first wire groove 2321 and the second wire groove 33, the power cord 5 can be guided to string through the first wire groove 2321 and the second wire groove 33, and at the same time, the power cord 5 can be protected by the first wire groove 2321 and the second wire groove 33, further extending the service life of the universal fan. In addition, it should be noted that to further avoid wear of the power cord 5 during stringing. The wire routing tracks of the first wire groove 2321 and the second wire groove 33 are both arc-shaped tracks, so as to avoid wear of the power cord 5 at the corners of the first wire groove 2321 or the corners of the second wire groove 33 during wire routing.

[0053] Further, in some embodiments, a wire hole 411 is provided at the bottom of the rotating groove 41 in the second direction Z, a controller is provided at the bottom of the machine base 4 in the second direction Z, and the power cord 5 passes through the wire hole 411 and is electrically connected to the controller.

[0054] In this embodiment, by providing a wire hole 411 at the bottom of the rotating groove 41 in the second direction Z, the power cord 5 can be introduced into the inner cavity of the machine base 4 until the power cord 5 is electrically connected to the controller. In this way, during the entire routing process of the power cord 5, there is no routing outside the universal fan. On the one hand, it can ensure the consistency of the appearance of the universal fan, and on the other hand, it can avoid damage to the power cord 5 during the routing process.

[0055] For other structures of the universal fan, in some embodiments, the universal fan further includes a positioning member 6, which is detachably connected to the rotation groove 41. When the included angle between the axis of the fan assembly 2 in the first direction X and the axis of the base 4 in the second direction Z reaches a preset included angle, the positioning member 6 is connected to the rotation groove 41 and abuts against the outer surface of the second rotating part 32.

[0056] In this embodiment, the positioning member 6 can be a knob, a plug-in member, a riveting member or a connecting member of other structures, and the embodiments of the present invention do not limit this. In this way, when the positioning member 6 is detachably connected to the rotation groove 41, when the included angle between the axis of the fan assembly 2 in the first direction X and the axis of the base 4 in the second direction Z reaches a preset included angle, that is, when the air blowing range of the fan assembly 2 reaches a preset range, the air blowing range of the fan assembly 2 can be fixed through the positioning member 6, so as to realize that the universal fan can adapt to the air blowing requirements of the user in any direction.

[0057] Further, in some embodiments, a threaded hole is formed on one side of the rotation groove 41 in the first direction X, the positioning member 6 is a knob, and the knob includes a screw rod, and the screw rod is threadedly connected to the threaded hole.

[0058] In this embodiment, since a threaded hole is formed on one side of the rotation groove 41 in the first direction X, the positioning member 6 is a knob, and the knob includes a screw rod, and the screw rod is threadedly connected to the threaded hole, the stability of the relative position between the second rotating part 32 and the rotation groove 41 can be determined by the amount of threaded connection of the screw rod in the threaded hole. Further, when the air blowing range of the fan assembly 2 needs to be adjusted, the screw rod can be screwed out in the first rotation direction, so that the end of the screw rod in the first direction X gradually moves away from the second rotating part 32, and then the outer surface of the second rotating part 32 is disengaged from the pressing of the end of the screw rod in the first direction X, so that the second rotating part 32 can rotate freely in the rotation groove 41 to realize the rotation of the fan assembly 2 in any direction. When the included angle between the axis of the fan assembly 2 in the first direction X and the axis of the base 4 in the second direction Z reaches a preset included angle, that is, when the air blowing range of the fan assembly 2 reaches a preset range, the screw rod can be screwed in the second rotation direction, so that the end of the screw rod in the first direction X gradually approaches the second rotating part 32 until the end of the screw rod in the first direction X abuts against the outer surface of the second rotating part 32, so that the second rotating part 32 is limited by the end of the screw rod in the first direction X to realize the fixing of the air blowing range of the fan assembly 2, and further realize that the universal fan can adapt to the air blowing requirements of the user in any direction.

[0059] Further, in some embodiments, the rotation groove 41 is provided with a first installation groove 412 and a second installation groove 413 which are opposite to each other. The first installation groove 412 and the second installation groove 413 are in opposite positions in the first direction X, or the first installation groove 412 and the second installation groove 413 are in opposite positions in the third direction Y; wherein, the third direction Y intersects with the first direction X and the second direction Z at the same time.

[0060] In this embodiment, the volume change of the rotation groove 41 surrounded by the first installation groove 412 and the second installation groove 413 can be realized to facilitate the installation of the second rotating part 32 in the rotation groove 41. Further explanation is that when the second rotating part 32 needs to be installed in the rotation groove 41, an external force can be used to increase the groove width of the first installation groove 412 and the groove width of the second installation groove 413, so that the area of the opening at the top of the rotation groove 41 in the second direction Z increases, and then it is convenient to install the first rotating part 31 in the rotation groove 41. After the second rotating part 32 is installed in the rotation groove 41, the external force can be removed, so that the groove width of the first installation groove 412 and the groove width of the second installation groove 413 return to the initial level, and the area of the opening at the top of the rotation groove 41 in the second direction Z returns to the initial area, thereby realizing the interference fit between the rotation groove 41 and the second rotating part 32. It should be noted that the first installation groove 412 and the second installation groove 413 can be arranged at two opposite positions in the first direction X, the first installation groove 412 and the second installation groove 413 can be arranged at two opposite positions in the third direction Y, or the first installation groove 412 and the second installation groove 413 are arranged at two opposite positions in the first direction X and at two opposite positions in the third direction Y. The embodiments of the present invention do not limit this.

[0061] It should also be noted that according to Figure 1 , in the embodiments of the present invention, the X-axis direction and the Z-axis direction intersect, and the Y-axis direction intersects with the Z-axis and the X-axis at the same time. For the convenience of description, the first direction is defined as the X-axis direction, the second direction is defined as the Z-axis direction (that is, the axis direction of the universal wheel 3 in the embodiments of the present invention), and the third direction is defined as the Y-axis direction. Further explanation is that the definition of perpendicular in the specification should be understood as perpendicular within a ten-percent floating range of ninety degrees, that is, the included angle between the defined first direction and the second direction should be understood as perpendicular when it is between eighty degrees and ninety degrees, and the included angle between the defined second direction and the third direction should be understood as perpendicular when it is between eighty degrees and ninety degrees.

[0062] Further, in some embodiments, the first installation groove 412 extends to the top of the rotation groove 41 in the second direction Z, and the second installation groove 413 extends to the top of the rotation groove 41 in the second direction Z.

[0063] In this embodiment, since the first mounting groove 412 extends to the top of the rotating groove 41 in the second direction Z, and the second mounting groove 413 extends to the top of the rotating groove 41 in the second direction Z, it is convenient to apply force to change the groove width of the first mounting groove 412 and the groove width of the second mounting groove 413, and at the same time, it is convenient to make the top opening area of the rotating groove 41 in the first direction Z change with the change of the groove width of the first mounting groove 412 and the groove width of the second mounting groove 413.

[0064] In some embodiments, the second rotating portion 32 at least partially extends out of the top of the rotating slot 41 .

[0065] In this embodiment, since the second rotating portion 32 at least partially extends out of the top of the rotating groove 41, the resistance encountered by the second rotating portion 32 is reduced when it rotates in the rotating groove 41, thereby making the universal fan smoother when changing the fan range and facilitating the installation between the second rotating portion 32 and the rotating groove 41.

[0066] Furthermore, in some embodiments, the area of the inner wall of the rotation groove 41 is greater than half of the area of the outer wall of the second rotation portion 32 , and the area of the inner wall of the rotation groove 41 is less than three quarters of the area of the outer wall of the second rotation portion 32 .

[0067] In this embodiment, since the area of the inner wall of the rotating groove 41 is larger than half of the area of the outer wall of the second rotating part 32, and the area of the inner wall of the rotating groove 41 is smaller than three quarters of the area of the outer wall of the second rotating part 32, it can not only ensure that the rotating groove 41 has a bearing effect on the second rotating part 32, that is, ensure that the second rotating part 32 will not separate from the rotating groove 41 when rotating, but also ensure the smoothness of the universal fan when changing the fan range.

[0068] In addition, it should be noted that the universal fan provided in the embodiment of the utility model can be any type of handheld fan, small desktop fan, clamp-type fan or standing fan, and the embodiment of the utility model does not limit this.

[0069] As can be seen from the above embodiments, in the embodiments of the present utility model, since the universal wheel 3 includes a connected first rotating part 31 and a second rotating part 32, the nose assembly 1 is movably connected to the fan assembly 2 through the first rotating part 31 on one side in the first direction X, and a rotating groove 41 is provided at the top of the machine base 4 in the second direction Z. The rotating groove 41 and the second rotating part 32 are in interference fit. Therefore, the rotation of the second rotating part 32 in the rotating groove 41 can drive the rotation of the fan assembly 2. Also, since the surface of the inner wall of the rotating groove 41 in contact with the outer surface of the second rotating part 32 is a spherical surface, the second rotating part 32 can rotate in the rotating groove 41, and the angle between the axis of the fan assembly 2 in the first direction X and the axis of the machine base 4 in the second direction Z is adjustable. Therefore, the second rotating part 32 can rotate in any direction in the rotating groove 41, enabling the fan assembly 2 to rotate in any direction, thereby increasing the air blowing range of the fan assembly 2, and further enabling the universal fan to adapt to the air blowing requirements of the user in any direction, so as to enhance the user experience.

[0070] In addition, since the motor 22 includes a power cord 5, and the power cord 5 passes through the rotating part 232 and the universal wheel 3 and is disposed inside the machine base 4, the universal fan can avoid rubbing the power cord 5 and being damaged during rotation, thereby effectively extending the service life of the universal fan.

[0071] It should be noted that in this article, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the phrase "including one..." does not exclude the existence of additional identical elements in the process, method, article or device including that element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in a reverse order according to the functions involved. For example, the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. Additionally, the features described with reference to certain examples may be combined in other examples.

[0072] Through the description of the above embodiments, those skilled in the art can clearly understand that the above-described example methods can be implemented by means of software plus a necessary general hardware platform. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation. Based on such an understanding, the technical solution of the present application, in essence or the part that contributes to the prior art, can be embodied in the form of a computer software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) and includes several instructions for causing a terminal (which can be a mobile phone, computer, server, or network device, etc.) to execute the methods described in the various embodiments of the present application.

[0073] The embodiments of the present application have been described above in conjunction with the accompanying drawings. However, the present application is not limited to the above specific embodiments. The above specific embodiments are merely illustrative and not restrictive. Under the inspiration of the present application, those of ordinary skill in the art can also make many forms without departing from the purpose of the present application and the scope protected by the claims, and all of them fall within the protection scope of the present application.

Claims

1. A universal fan, characterized in that, The universal fan includes: a head assembly, a fan assembly, and universal wheels. The universal wheels include a first rotating part and a second rotating part connected to each other. The head assembly is connected to the fan assembly through the first rotating part on one side in the first direction; a base. A rotating groove is provided at the top of the base in the second direction. The rotating groove is in interference fit with the second rotating part. Wherein, the surface of the inner wall of the rotating groove in contact with the outer surface of the second rotating part is a spherical surface. The second rotating part can rotate in the rotating groove. The included angle between the axis of the fan assembly in the first direction and the axis of the base in the second direction is adjustable. The first direction and the second direction are two intersecting directions.

2. The universal fan according to claim 1, characterized in that, Both the first rotating part and the second rotating part are spherical, and the rotating groove is a spherical groove.

3. The universal fan according to claim 2, wherein, A spherical through groove is provided at the bottom of the head assembly in the second direction. The first rotating part passes through the spherical through groove and is connected to the second rotating part.

4. The universal fan according to claim 1, characterized in that, The fan assembly includes a fan blade, a motor, and a net cover; The fan blade is connected to the motor. The net cover includes a receiving part and a rotating part. The rotating part is connected to one side of the receiving part in the first direction. The receiving part includes a receiving cavity. Both the motor and the net cover are fixed in the receiving cavity. The rotating part is embedded in the head assembly and is fixedly connected to the end of the first rotating part in the second direction.

5. The universal fan according to claim 4, characterized in that, The motor includes a power cord. The power cord passes through the rotating part and the universal wheels and is disposed inside the base.

6. The universal fan according to claim 5, characterized in that, A first wire routing groove is provided inside the rotating part, and a second wire routing groove is provided inside the universal wheels. The first wire routing groove is communicated with the second wire routing groove. The second wire routing groove is communicated with the inner cavity of the base. The power cord is disposed in the first wire routing groove and the second wire routing groove.

7. The universal fan according to claim 6, characterized in that, A wire routing hole is provided at the bottom of the rotating groove in the second direction. A controller is provided at the bottom of the base in the second direction. The power cord passes through the wire routing hole and is electrically connected to the controller.

8. The universal fan according to claim 1, characterized in that, The universal fan further includes a positioning member. The positioning member is detachably connected to the rotating groove. When the included angle between the axis of the fan assembly in the first direction and the axis of the base in the second direction reaches a preset included angle, the positioning member is connected to the rotating groove and abuts against the outer surface of the second rotating part.

9. The universal fan according to claim 8, characterized in that, A threaded hole is provided on one side of the rotating groove in the first direction. The positioning member is a knob. The knob includes a screw rod, and the screw rod is threadedly connected in the threaded hole.

10. The universal fan according to claim 8, characterized in that, The rotating groove is provided with a first installation groove and a second installation groove opposite to each other. The first installation groove and the second installation groove are in opposite positions in the first direction, or the first installation groove and the second installation groove are in opposite positions in the third direction; Wherein, the third direction intersects with both the first direction and the second direction.

11. The universal fan according to claim 10, characterized in that, The first installation groove extends to the top of the rotating groove in the second direction, and the second installation groove extends to the top of the rotating groove in the second direction.

12. The universal fan according to claim 1, wherein, The second rotating part at least partially extends out of the top of the rotating groove.

13. The universal fan according to claim 12, characterized in that, The area of the inner wall of the rotating groove is greater than one-half of the area of the outer wall of the second rotating part and less than three-fourths of the area of the outer wall of the second rotating part.

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