Foldable support and air supply device

Abstract

The invention relates to a foldable support and an air supply device, and relates to the technical field of folding. The foldable support comprises a first turnover assembly, a second turnover assembly and two locking assemblies, and the first turnover assembly is provided with a first connecting part; the second overturning assembly is provided with a second connecting part, and the second connecting part is rotationally connected with the first connecting part; the two locking assemblies are arranged on the two opposite sides of the first connecting part correspondingly. The second connecting part is provided with two sliding grooves and two limiting grooves, the two sliding grooves are oppositely arranged, and the sides, away from each other, of the two sliding grooves are each correspondingly provided with one limiting groove. The locking assembly comprises pressing pieces, and each pressing piece is arranged in the corresponding limiting groove in a telescopic and penetrating mode and provided with an abutting part. The folding chair can be freely rotated and folded, the operation is simple and labor-saving, and the use experience of a user is greatly improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of folding, in particular to a foldable support and a wind supply device. BACKGROUND

[0002] In related technologies, fan products often need to use relatively complex operation actions to achieve pitch adjustment, stretching or folding use, and there are problems of complex assembly and many parts. The design of the folding mechanism often has problems of inconvenient operation, insufficient stability or low safety, resulting in poor user experience. SUMMARY

[0003] Therefore, it is necessary to provide a foldable support and a wind supply device to solve the problem of inconvenient operation of the folding mechanism.

[0004] To achieve the above-mentioned purpose, the technical scheme adopted by the present application is as follows:

[0005] In a first aspect, the present application provides a foldable support, comprising:

[0006] A first turnover assembly is provided with a first connecting part;

[0007] A second turnover assembly is provided with a second connecting part, and the second connecting part is rotationally connected with the first connecting part;

[0008] Two locking assemblies are respectively arranged on opposite sides of the first connecting part;

[0009] The second connecting part is provided with two sliding grooves and two limiting grooves, the two sliding grooves are oppositely arranged, and each side away from each other is provided with one limiting groove; the locking assembly comprises a pressing piece, each pressing piece is telescopically arranged in the corresponding limiting groove and is provided with an abutting part;

[0010] When the two pressing pieces are controlled to enter the corresponding sliding grooves at the same time, the first turnover assembly can rotate relative to the second turnover assembly; when the two pressing pieces are controlled to be separated from the sliding grooves, the abutting parts are respectively rotationally matched with the corresponding limiting grooves, and the first turnover assembly is stationary relative to the second turnover assembly.

[0011] Through the above design, the stress on both sides of the first connecting part is uniform, the stability of the overall structure is improved, the operation is simple and labor-saving, and the user's experience is greatly improved.

[0012] In one embodiment of the first aspect, the second connecting part is further provided with a connecting piece, and the two sliding grooves are oppositely arranged on both sides of the connecting piece;

[0013] The foldable support further comprises a connecting assembly, which comprises a penetrating piece and a locking piece, the penetrating piece is sequentially penetrated through the connecting sheet and the first connecting part and locked with the locking piece, so that the first turnover assembly can rotate along the axis of the penetrating piece.

[0014] Through the above design, the rotation of the first turnover assembly and the second turnover assembly is realized.

[0015] In one embodiment of the first aspect, the locking assembly further comprises elastic members, one end of one of the elastic members is in abutment with the penetrating piece, and the other end is in abutment with a corresponding one of the pressing members, one end of the other elastic member is in abutment with the locking piece, and the other end is in abutment with a corresponding other pressing member.

[0016] Through the above design, the pressing and resetting of the pressing member is realized, and the current working state of the first turnover assembly is maintained.

[0017] In one embodiment of the first aspect, the foldable support comprises a plurality of friction sheets, the second connecting part is provided with a plurality of installation grooves, each of the installation grooves is oppositely arranged on both sides of the connecting sheet, each of the friction sheets is respectively installed in a corresponding installation groove, and the penetrating piece is sequentially penetrated through each of the friction sheets.

[0018] Through the above design, the friction sheets will provide friction to the second connecting member, offset part of the potential energy of the second connecting member during rotation, reduce the rotation speed of the second connecting member, and reduce the wear of the components.

[0019] In one embodiment of the first aspect, the side of the friction sheet is provided with a limiting rib, and the limiting rib is inserted into the installation groove.

[0020] Through the above design, during installation, the limiting rib can be inserted into the installation groove to realize the fixation and installation positioning of the friction sheet.

[0021] In one embodiment of the first aspect, the pressing member comprises a button, the abutment part is arranged at one end of the button penetrated through the second turnover assembly and protrudes relative to the circumferential surface of the button.

[0022] Through the above design, when the abutment part enters the limiting groove with a smaller inner diameter under the action of the elastic member, the wall surface of the limiting groove abuts against the side of the abutment part to limit the rotation of the pressing member and maintain the relative position of the first turnover assembly fixed.

[0023] In one embodiment of the first aspect, the abutment part comprises an arc surface and two first abutment surfaces distributed at both ends of the arc surface.

[0024] The limiting groove is provided with two second resisting surfaces opposite to each other, and each of the second resisting surfaces is in abutment with the corresponding first resisting surface when the abutting part is located in the limiting groove.

[0025] Through the above design, when the abutting part is located in the limiting groove, the first resisting surface is in abutment with the second resisting surface, and the pressing piece cannot rotate in the limiting groove.

[0026] In one of the embodiments of the first aspect, the foldable support further comprises a motor and a rotating shaft, the second turnover assembly is provided with a third connecting part, the third connecting part is connected to one end of the second connecting part, the rotating shaft is installed in the third connecting part in parallel to the direction of gravity, and the output shaft of the motor is connected with the rotating shaft.

[0027] Through the above design, under the driving of the motor, the rotating shaft can drive the first turnover assembly and the second turnover assembly to rotate as a whole, so as to realize corresponding head-shaking operation.

[0028] In one of the embodiments of the first aspect, the third connecting part is provided with a first wire slot, the second connecting part is provided with a second wire slot, and the foldable support further comprises a cable, one end of the cable is connected with the motor, and the cable is sequentially arranged in the first wire slot and the second wire slot and then extends into the first turnover assembly.

[0029] Through the above design, when the cable is arranged in the second wire slot, the cable has sufficient extension length along with the rotation of the first turnover assembly, and will not be knotted due to arbitrary movement.

[0030] In the second aspect, the embodiments of the present application further provide a wind supply device comprising the foldable support in any of the above embodiments.

[0031] Through the above design, the wind supply device can realize up-down and left-right wind sweeping, is convenient to fold and store, has a simple overall structure, and is convenient to operate.

[0032] Compared with the related art, the application has the beneficial effects that the application provides a foldable support and a wind supply device to facilitate folding or unfolding of the fan. The foldable support comprises a first turnover assembly, a second turnover assembly and two locking assemblies. The second turnover assembly is provided with two sliding grooves and a limiting groove. The locking assembly comprises a pressing piece which can be telescopically arranged in the corresponding limiting groove and is provided with an abutting portion. In this way, when folding or unfolding is needed, the two pressing pieces are simultaneously pressed into the corresponding sliding grooves, the first turnover assembly is controlled to rotate relative to the second turnover assembly, and after reaching the corresponding angle, the pressing pieces are controlled to be separated from the sliding grooves, the abutting portions are respectively in rotation-stopping cooperation with the corresponding limiting grooves, and the first turnover assembly is stationary relative to the second turnover assembly. In this way, the foldable support can be freely rotated and folded, the operation is simple and labor-saving, and the user's use experience is greatly improved. BRIEF DESCRIPTION OF DRAWINGS

[0033] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description only constitute some embodiments of the application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0034] Figure 1 A folding structure schematic diagram of the foldable support in some embodiments of the application;

[0035] Figure 2 An unfolding structure schematic diagram of the foldable support in some embodiments of the application;

[0036] Figure 3 A structure schematic diagram of the second turnover assembly in some embodiments of the application;

[0037] Figure 4 A structure schematic diagram of the foldable support in some embodiments of the application; Figure 3 An enlarged structure schematic diagram of part A shown in the figure;

[0038] Figure 5 A structure schematic diagram of the pressing piece in some embodiments of the application;

[0039] Figure 6 A cross-sectional structure schematic diagram of the foldable support in some embodiments of the application;

[0040] Figure 7 An enlarged structure schematic diagram of part B shown in the figure; Figure 6

[0041] Figure 8 An exploded structure schematic diagram of the foldable support in some embodiments of the application;

[0042] Figure 9 ​Structure diagram of a friction plate in some embodiments of the present application;

[0043] Figure 10 Structure diagram of a motor in some embodiments of the present application;

[0044] Figure 11 Structure diagram of a rotating shaft in some embodiments of the present application;

[0045] Figure 12 Structure diagram of a first turnover assembly in some embodiments of the present application Figure 1 ;

[0046] Figure 13 Structure diagram of a first turnover assembly in some embodiments of the present application Figure 2 .

[0047] Explanation of reference signs:

[0048] 100, foldable support; 110, first turnover assembly; 111, first connecting part; 1111, pressing hole; 1112, third wire slot; 120, second turnover assembly; 121, second connecting part; 122, third connecting part; 123, sliding slot; 124, limiting slot; 1241, second resisting surface; 125, mounting slot; 126, first wire slot; 127, second wire slot; 130, locking assembly; 131, pressing piece; 1311, abutting part; 13111, arc surface; 13112, first resisting surface; 1312, button; 132, elastic piece; 140, connecting assembly; 141, penetrating piece; 142, locking piece; 150, friction plate; 151, limiting rib; 160, motor; 161, output shaft; 170, rotating shaft; 171, shaft hole; 180, cable. DETAILED DESCRIPTION

[0049] In order to make the above objectives, features and advantages of the present application more apparent, specific embodiments of the present application are described in detail below with reference to the accompanying drawings. In the following description, a lot of specific details are set forth in order to fully understand the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present application, so the present application is not limited to the specific embodiments disclosed below.

[0050] In the description of the present application, it should be understood that, if there are terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, these terms indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or component referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0051] In addition, if the term "and / or" appears, "and / or" only describes the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which means that there are three cases of A alone, A and B together, and B alone. In addition, the character " / " herein generally represents that the front and rear associated objects have an "or" relationship. If the terms "first", "second" appear, these terms are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, if the term "multiple" appears, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise explicitly specified and limited.

[0052] In the present application, unless otherwise explicitly specified and limited, if the terms "mounting", "connecting", "connecting", "fixing" and the like appear, these terms should be understood in a broad sense. For example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two components or the interaction relationship between two components, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0053] In the present application, unless otherwise explicitly specified and limited, if the first feature appears "on" or "under" the second feature or similar description, the meaning can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" of the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" of the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0054] It is to be understood that if an element is referred to as being "on" or "connected to" another element, it can be directly on or connected to the other element or intervening elements can be present. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0055] In the foldable fan product, buckle or screw is often used for positioning and fixing during pitch adjustment, stretching or folding use, but often requires relatively complex operation to achieve, and there are problems of complex assembly and more parts. At the same time, the design of the folding mechanism often has the problems of inconvenient operation, insufficient stability or low safety. In addition, the folding mechanism of some related technologies is prone to angular deviation due to accidental touch or vibration during use, which not only affects the use experience, but also may cause safety hazards.

[0056] Referring to FIGS. 1 to 3, Figure 1 and Figure 2 To improve the above problems, the embodiment of the present application provides a foldable support 100. It can be known that the foldable support 100 has two states of folding and opening, and can automatically maintain the corresponding working state, with simple structure and convenient operation.

[0057] Specifically, the foldable support 100 includes a first turnover assembly 110, a second turnover assembly 120 and two locking assemblies 130. The first turnover assembly 110 is provided with a first connecting part 111, the second turnover assembly 120 is provided with a second connecting part 121, and the second connecting part 121 is rotationally connected with the first connecting part 111 to realize the folding and opening work of the two.

[0058] It can be understood that one of the first turnover assembly 110 and the second turnover assembly 120 is installed with a work mechanism that needs to be turned over and adjusted, and the other is connected with a support mechanism that needs to be kept fixed, so as to realize the turnover and adjustment work of the device. For the convenience of understanding, the embodiment of the present application takes the air supply device as an example for illustration, specifically, the air supply device is a foldable circulating fan. The first turnover assembly 110 is installed with a fan head assembly, and the second turnover assembly 120 is connected with a support assembly to realize the folding and storage of the fan head.

[0059] Further, the two locking assemblies 130 are respectively arranged on the opposite sides of the first connecting part 111 to simultaneously perform the locking work on the two sides of the first connecting part 111, keep the two sides of the first connecting part 111 under uniform stress, and improve the stability of the overall structure.

[0060] With reference to Figure 3 and Figure 4 As shown in FIG. 12, the second connecting part 121 is provided with two sliding grooves 123 and two limiting grooves 124. The two sliding grooves 123 are oppositely arranged, and each of the two limiting grooves 124 is arranged on the side away from the other sliding groove 123. That is, the two sliding grooves 123 and the two limiting grooves 124 are oppositely arranged along the center line of the second connecting part 121, so as to facilitate the assembly of the two locking assemblies 130.

[0061] With reference to Figure 5 As shown in FIG. 13, the locking assembly 130 includes a pressing piece 131. The two pressing pieces 131 are oppositely arranged along the center line of the second connecting part 121, and are respectively and telescopically arranged in the corresponding limiting groove 124. The pressing piece 131 is provided with an abutting portion 1311. When the abutting portion 1311 is located in the sliding groove 123, the first folding assembly 110 can rotate relative to the second folding assembly 120, so as to realize the folding or unfolding operation. When the abutting portion 1311 is located in the limiting groove 124, the first folding assembly 110 is stationary relative to the second folding assembly 120, and the current folding or unfolding state is maintained.

[0062] Specifically, when the state needs to be adjusted, the user can press the two pressing pieces 131 at the same time with one hand, so that the two pressing pieces 131 are simultaneously arranged in the corresponding sliding groove 123, thereby operating the first folding assembly 110 to rotate relative to the second folding assembly 120, and realizing the corresponding position adjustment. After reaching the corresponding position, the two pressing pieces 131 are released, and the two pressing pieces 131 are separated from the sliding groove 123, and the abutting portion 1311 of each pressing piece 131 is respectively and rotationally matched with the corresponding limiting groove 124, so that the first folding assembly 110 is stationary relative to the second folding assembly 120, and the current state is maintained.

[0063] With reference to Figure 6 As shown in FIG. 14, in some embodiments, the second connecting part 121 is further provided with a connecting sheet. The two sliding grooves 123 are oppositely arranged on the two sides of the connecting sheet, that is, the limiting groove 124 and the locking assembly 130 are oppositely arranged along the center line of the connecting sheet. The foldable support 100 further includes a connecting assembly 140, and the connecting assembly 140 passes through the connecting sheet and the first connecting part 111, so as to realize the rotational matching of the first folding assembly 110 and the second folding assembly 120.

[0064] With reference to Figure 7 As shown in FIG. 15, further, the connecting assembly 140 includes a penetrating piece 141 and a locking piece 142. After the penetrating piece 141 sequentially passes through the connecting sheet and the first connecting part 111, the penetrating piece 141 is locked with the locking piece 142, so that the first folding assembly 110 can rotate along the axis of the penetrating piece 141.

[0065] In one embodiment, the penetrating member 141 can be a bolt, and the locking member 142 can be a nut, so that after the penetrating member 141 penetrates through the connecting plate and the first connecting portion 111, the nut is tightened or loosened with the bolt by screwing, thereby completing the connection between the first turnover assembly 110 and the second turnover assembly 120.

[0066] In another embodiment, the penetrating member 141 can also be a pin shaft, and the locking member 142 can be a circlip, and two circlips are arranged at two ends of the pin shaft respectively, so that after the penetrating member 141 penetrates through the connecting plate and the first connecting portion 111, the pin shaft is fixed by the circlips.

[0067] Continuing to refer to Figure 7 In some embodiments, the locking assembly 130 further includes elastic members 132, one end of each elastic member 132 abutting against the penetrating member 141, and the other end abutting against a corresponding pressing member 131. One end of another elastic member 132 abutting against the locking member 142, and the other end abutting against another corresponding pressing member 131.

[0068] Specifically, the elastic member 132 can be a helical compression spring, and two ends of the helical compression spring are connected with the pressing member 131 and the connecting assembly 140 respectively, so as to realize the pressing reset of the pressing member 131. In the normal state, the elastic member 132 is in a stretched state, and the pressing member 131 is pressed outward, so that the abutting portion 1311 is located in the limiting groove 124. During the rotation of the first turnover assembly 110, the elastic member 132 is contracted by pressing the pressing member 131, and the abutting portion 1311 enters the sliding groove 123, so that the first turnover assembly 110 can rotate relative to the second turnover assembly 120.

[0069] In some embodiments, the pressing member 131 includes a button 1312, and the abutting portion 1311 is arranged at one end of the button 1312 penetrating through the second turnover assembly 120, and protrudes relative to the circumferential surface of the button 1312.

[0070] Specifically, the inner diameter of the sliding groove 123 is larger than that of the limiting groove 124, and when the abutting portion 1311 is located in the sliding groove 123, the first turnover assembly 110 can rotate arbitrarily in the sliding groove 123, so as to facilitate the turnover operation of the first turnover assembly 110. When the abutting portion 1311 enters the limiting groove 124 with a smaller inner diameter under the action of the elastic member 132, the wall surface of the limiting groove 124 abuts against the side of the abutting portion 1311, thereby limiting the rotation of the pressing member 131 and keeping the relative position of the first turnover assembly 110 fixed.

[0071] In some embodiments, the abutting part 1311 comprises an arc surface 13111 and two first abutting surfaces 13112 distributed at two ends of the arc surface 13111. The limiting groove 124 is oppositely provided with two second abutting surfaces 1241, and each second abutting surface 1241 is in abutment with the corresponding first abutting surface 13112 when the abutting part 1311 is located in the limiting groove 124.

[0072] For example, the first abutting surface 13112 and the second abutting surface 1241 are both planar structures, so that the abutting part 1311 and the limiting groove 124 are both not regular circular structures. When the abutting part 1311 is located in the limiting groove 124, the first abutting surface 13112 and the second abutting surface 1241 are in abutment, and the pressing piece 131 cannot rotate in the limiting groove 124.

[0073] Continuing to refer to Figure 8 In some embodiments, the foldable support 100 comprises a plurality of friction plates 150, and the second connecting part 121 is provided with a plurality of installation grooves 125, each installation groove 125 is oppositely arranged at two sides of the connecting plate, each friction plate 150 is installed in the corresponding installation groove 125, and the penetrating piece 141 penetrates the friction plates 150 in sequence.

[0074] For example, the friction plate 150 and the installation groove 125 are both provided with two, and the two friction plates 150 are symmetrically arranged at two sides of the connecting plate. In the installation process, the penetrating piece 141 penetrates one friction plate 150, the connecting plate and the other friction plate 150 in sequence and is fixed with the locking piece 142, so that the friction plate 150 provides friction force for the second connecting part during rotation of the second connecting part, offsets part of potential energy of the second connecting part during rotation, reduces the rotation speed of the second connecting part, and reduces the loss of components.

[0075] Continuing to refer to Figure 9 In some embodiments, the friction plate 150 is provided with a limiting rib 151 at the side, and the limiting rib 151 is inserted into the installation groove 125.

[0076] Specifically, the limiting rib 151 protrudes from the middle part of the friction plate 150, so that the limiting rib 151 can be inserted into the installation groove 125 in the installation process, so as to realize the fixation and installation positioning of the friction plate 150.

[0077] Continuing to refer to Figure 10 and Figure 11 In some embodiments, the foldable support 100 further comprises a motor 160 and a rotating shaft 170, the second turnover assembly 120 is provided with a third connecting part 122, the third connecting part 122 is connected to one end of the second connecting part 121, the rotating shaft 170 is installed in the third connecting part 122 in parallel with the direction of gravity, and the output shaft 161 of the motor 160 is connected with the rotating shaft 170.

[0078] Specifically, the third connecting part 122 is in a cylindrical structure, and the second connecting part 121 is in a triangular structure, and the tip of the second connecting part 121 is away from the third connecting part 122, so that the first turnover assembly 110 can have a sufficient turnover range when connected with the second connecting part 121.

[0079] The motor 160 and the rotating shaft 170 can be fixed on the third connecting part 122 by screws, and the third connecting part 122 is also provided with a hole position corresponding to the screw locking, and is in rotating cooperation with the supporting assembly. The rotating shaft 170 is provided with a shaft hole 171 at the top, and is connected with the output shaft 161 of the motor 160 through the shaft hole 171. In this way, under the driving of the motor 160, the rotating shaft 170 can drive the first turnover assembly 110 and the second turnover assembly 120 to rotate as a whole, so as to realize the head-shaking sweeping operation of the circulating fan.

[0080] Referring back to Figure 3 In some embodiments, the third connecting part 122 is provided with a first wire slot 126, the second connecting part 121 is provided with a second wire slot 127, and the foldable support 100 further comprises a cable 180, one end of the cable 180 is connected with the motor 160, and the cable 180 extends into the first turnover assembly 110 after being sequentially arranged in the first wire slot 126 and the second wire slot 127.

[0081] Specifically, the second wire slot 127 is arranged between the mounting groove 125 and the sliding groove 123, and after the motor 160 and the second turnover assembly 120 are fixed, one end of the cable 180 is connected with the motor 160 through a plug to meet the power supply requirement of the motor 160. Then, the cable 180 is sequentially arranged in the mounting groove 125 and the sliding groove 123 to fix the wire. In addition, the second wire slot 127 is in an arc structure, so that when the cable 180 is arranged in the second wire slot 127, the cable 180 has sufficient extension length with the rotation of the first turnover assembly 110, and will not be knotted due to arbitrary movement.

[0082] Continuing to refer to Figure 12 and Figure 13 Further, the two sides of the first connecting part 111 are provided with pressing holes 1111, the shape of the pressing holes 1111 is adapted to the abutting part 1311 of the pressing piece 131, so that the pressing piece 131 can freely pass through the pressing holes 1111 during the extension and retraction of the pressing piece 131, and the pressing and resetting of the pressing piece 131 are met.

[0083] Further, the first connecting part 111 located at one side of the second wire slot 127 is further provided with a third wire slot 1112, so as to lead the cable 180 from the second wire slot 127 to the third wire slot 1112, and then into the first turnover assembly 110, so as to be connected with the fan head assembly. The third wire slot 1112 can be arranged in an arc shape, so as to meet the rotation limit of the cable 180, and the side is rounded, so as to reduce the abrasion of the cable 180 during the rotation of the first turnover assembly 110.

[0084] The embodiment of the present application further provides a wind supply device, which comprises the foldable support 100 in any of the above embodiments.

[0085] Specifically, the wind supply device further comprises a fan head assembly and a support assembly. The fan head assembly is rotationally connected with the first turnover assembly 110, so as to be rotatable relative to the first turnover assembly 110, and in combination with the rotation ability of the second turnover assembly 120, the up-down and left-right wind sweeping of the fan head assembly can be realized. The support assembly is rotationally connected with the second turnover assembly 120 and is placed on the bottom surface, so as to support the fan head assembly. Meanwhile, the second turnover assembly 120 can be rotated relative to the support assembly under the driving of the rotation shaft 170, so as to realize the left-right wind sweeping of the fan head assembly.

[0086] The embodiment has the foldable support 100 in any of the above embodiments, so as to have all the beneficial effects of the foldable support 100 in any of the above embodiments, which will not be described here.

[0087] The technical features of the above embodiments can be combined arbitrarily. In order to make the description simple, all possible combinations of the technical features in the above embodiments are not described, however, as long as the combinations of the technical features do not exist contradictory, they should be considered as the scope of the present application.

[0088] The above embodiments only express several implementation manners of the present application, the description is more specific and detailed, but it should not be understood as the limitation of the patent application scope. It should be pointed out that, for ordinary skilled in the art, without departing from the concept of the present application, several modifications and improvements can be made, which all belong to the protection scope of the present application. Therefore, the patent protection scope of the present application should be subject to the appended claims.

Claims

1. A foldable bracket, characterized in that, include: The first flipping component is provided with a first connecting part; The second flipping component is provided with a second connecting part, which is rotatably connected to the first connecting part; Two locking components are respectively disposed on opposite sides of the first connecting portion; The second connecting part has two sliding grooves and two limiting grooves. The two sliding grooves are arranged opposite to each other, and each side that is far away from each other is provided with a limiting groove. The locking component includes a pressing member, and each pressing member is telescopically inserted into a corresponding limiting groove and is provided with an abutting part. When the two pressing parts are controlled to enter the corresponding slide grooves simultaneously, the first flipping component can rotate relative to the second flipping component; when the two pressing parts are controlled to disengage from the slide grooves, each of the abutting parts is engaged with a corresponding limiting groove to prevent rotation, and the first flipping component is stationary relative to the second flipping component.

2. The foldable bracket according to claim 1, characterized in that, The second connecting part is also provided with a connecting piece, and the two sliding grooves are disposed opposite to each other on both sides of the connecting piece; The foldable bracket further includes a connecting component, which includes a threaded insert and a locking element. The threaded insert passes through the connecting piece and the first connecting portion in sequence and is then locked with the locking element so that the first flipping component can rotate along the axis of the threaded insert.

3. The foldable bracket according to claim 2, characterized in that, The locking assembly further includes elastic elements, one end of which abuts against the insert and the other end against a corresponding pressing element, and one end of the other elastic element abuts against the locking element and the other end against another corresponding pressing element.

4. The foldable bracket according to claim 2, characterized in that, The foldable bracket includes multiple friction plates, and the second connecting part has multiple mounting slots. Each mounting slot is disposed opposite to the two sides of the connecting plate, and each friction plate is respectively installed in the corresponding mounting slot. The insert is inserted through each friction plate in sequence.

5. The foldable bracket according to claim 4, characterized in that, The friction plate is provided with a limiting rib on its side, and the limiting rib is inserted into the mounting groove.

6. The foldable bracket according to claim 1, characterized in that, The pressing component includes a button, and the abutting portion is disposed at one end of the button that passes through the second flip component and protrudes relative to the peripheral surface of the button.

7. The foldable bracket according to claim 6, characterized in that, The contact portion includes an arc-shaped surface and two first resisting surfaces distributed at both ends of the arc-shaped surface; The limiting groove has two second resisting surfaces arranged opposite each other. When the abutting part is located in the limiting groove, each of the second resisting surfaces abuts against the corresponding first resisting surface.

8. The foldable bracket according to claim 1, characterized in that, The foldable bracket also includes a motor and a rotating shaft. The second flipping component is provided with a third connecting part, which is connected to one end of the second connecting part. The rotating shaft is installed in the third connecting part parallel to the direction of gravity, and the output shaft of the motor is connected to the rotating shaft.

9. The foldable bracket according to claim 8, characterized in that, The third connecting part has a first wiring groove, the second connecting part has a second wiring groove, the foldable bracket also includes a cable, one end of the cable is connected to the motor, and passes through the first wiring groove and the second wiring groove in sequence before extending into the first flipping component.

10. An air supply device, characterized in that, The foldable bracket includes any one of claims 1 to 9.

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