Foldable stand and air supply device

Abstract

The application relates to a foldable support and a wind supply device and relates to the folding technical field. The foldable support comprises a first turnover assembly, a second turnover assembly and two locking assemblies, the first turnover assembly is provided with a first connecting part; the second turnover assembly is provided with a second connecting part, the second connecting part is rotationally connected with the first connecting part; the two locking assemblies are respectively arranged on opposite sides of the first connecting part; the second connecting part is provided with two sliding grooves and two limiting grooves, the two sliding grooves are oppositely arranged, and one limiting groove is arranged on the side away from each other; 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. The application can be freely rotated and folded, is simple and labor-saving to operate, and greatly improves the use experience of users.

Description

Technical Field

[0001] This application relates to the field of folding technology, and in particular to a foldable bracket and air supply device. Background Technology

[0002] In related technologies, fan products often require relatively complex operation to adjust their pitch, extend, or fold, and they also suffer from complex assembly and numerous parts. The design of folding mechanisms often results in inconvenient operation, insufficient stability, or low safety, leading to a poor user experience. Utility Model Content

[0003] Therefore, it is necessary to provide a foldable bracket and air supply device to address the problem of inconvenient operation of the folding mechanism.

[0004] To achieve the above objectives, the technical solution adopted in this application is as follows:

[0005] In a first aspect, embodiments of this application provide a foldable bracket, comprising:

[0006] The first flipping component is provided with a first connecting part;

[0007] The second flipping component is provided with a second connecting part, which is rotatably connected to the first connecting part;

[0008] Two locking components are respectively disposed on opposite sides of the first connecting portion;

[0009] 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.

[0010] 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.

[0011] The above design ensures that the forces on both sides of the first connecting part are evenly distributed, improving the stability of the overall structure, making operation simple and effortless, and greatly enhancing the user experience.

[0012] In one embodiment of the first aspect, the second connecting portion is further provided with a connecting piece, and the two sliding grooves are disposed opposite to each other on both sides of the connecting piece;

[0013] 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.

[0014] The above design enables the rotational engagement between the first flipping component and the second flipping component.

[0015] In one embodiment of the first aspect, the locking assembly further includes an elastic element, 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.

[0016] The above design enables the pressing and resetting of the pressing component, maintaining the current operating state of the first flipping component.

[0017] In one embodiment of the first aspect, the foldable bracket includes a plurality of friction pads, the second connecting portion has a plurality of mounting slots, each mounting slot is disposed opposite to both sides of the connecting pad, each friction pad is respectively mounted in the corresponding mounting slot, and the insert is sequentially inserted through each friction pad.

[0018] Through the above design, the friction pad will provide friction to the second connector, offset some of the potential energy of the second connector during rotation, reduce the rotation speed of the second connector, and reduce component wear.

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

[0020] With the above design, during the installation process, the limiting rib can be inserted into the mounting groove to achieve the fixing and positioning of the friction plate.

[0021] In one embodiment of the first aspect, the pressing member includes a button, and the abutting portion is disposed at one end of the button that passes through the second flipping component and protrudes relative to the peripheral surface of the button.

[0022] With the above design, when the abutting part enters the limiting groove with a smaller inner diameter under the action of the elastic member, the wall of the limiting groove abuts against the side of the abutting part, restricting the rotation of the pressing member and keeping the relative position of the first flipping assembly fixed.

[0023] In one embodiment of the first aspect, the abutting portion includes an arcuate surface and two first resisting surfaces distributed at both ends of the arcuate surface;

[0024] 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.

[0025] With the above design, when the abutting part is located in the limiting groove, the first resisting surface abuts against the second resisting surface, and the pressing member cannot rotate in the limiting groove.

[0026] In one embodiment of the first aspect, the foldable bracket further includes a motor and a rotating shaft, the second flipping 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 parallel to the direction of gravity, and the output shaft of the motor is connected to the rotating shaft.

[0027] With the above design, driven by the motor, the rotating shaft can drive the first flipping component and the second flipping component to rotate as a whole, thereby realizing the corresponding head-shaking operation.

[0028] In one embodiment of the first aspect, the third connecting part is provided with a first wiring groove, the second connecting part is provided with a second wiring groove, the foldable bracket further 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.

[0029] With the above design, when the cable is laid in the second cable tray, as the first flipping component rotates, the cable has sufficient extension and retraction length and will not cause problems such as knotting due to arbitrary movement.

[0030] Secondly, embodiments of this application also provide an air supply device, including the foldable bracket described in any of the above embodiments.

[0031] The above design enables the air supply device to sweep air up, down, left, and right, making it easy to fold and store, with a simplified overall structure and easy operation.

[0032] Compared to related technologies, the advantages of this application are as follows: This application provides a foldable bracket and air supply device to facilitate the folding and unfolding of a fan. The foldable bracket includes a first flipping assembly, a second flipping assembly, and two locking assemblies. The second flipping assembly has two sliding grooves and a limiting groove. The locking assemblies include pressing members that are retractable and pass through a corresponding limiting groove and have an abutment portion. Thus, when folding or unfolding is required, both pressing members are pressed simultaneously into their respective sliding grooves, controlling the first flipping assembly to rotate relative to the second flipping assembly. After reaching a certain angle, the pressing members are controlled to disengage from the sliding grooves, and the abutment portions engage with their respective limiting grooves to prevent rotation, keeping the first flipping assembly stationary relative to the second flipping assembly. In this way, the foldable bracket can rotate and fold freely, making operation simple and effortless, greatly improving the user experience. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0034] Figure 1 This is a schematic diagram of the folding structure of the foldable bracket in some embodiments of this application;

[0035] Figure 2 This is a schematic diagram of the unfolded structure of the foldable bracket in some embodiments of this application;

[0036] Figure 3 This is a schematic diagram of the structure of the second flipping component in some embodiments of this application;

[0037] Figure 4 for Figure 3 The diagram shows an enlarged view of part A.

[0038] Figure 5 This is a schematic diagram of the pressing element in some embodiments of this application;

[0039] Figure 6 This is a cross-sectional structural diagram of the foldable bracket in some embodiments of this application;

[0040] Figure 7 for Figure 6 The diagram shows an enlarged view of part B.

[0041] Figure 8 This is an exploded view of the foldable bracket in some embodiments of this application;

[0042] Figure 9This is a schematic diagram of the structure of the friction plate in some embodiments of this application;

[0043] Figure 10 The following are schematic diagrams of the motor structure in some embodiments of this application;

[0044] Figure 11 This is a schematic diagram of the structure of the rotating shaft in some embodiments of this application;

[0045] Figure 12 This is a schematic diagram of the structure of the first flipping component in some embodiments of this application. Figure 1 ;

[0046] Figure 13 This is a schematic diagram of the structure of the first flipping component in some embodiments of this application. Figure 2 .

[0047] Explanation of reference numerals in the attached figures:

[0048] 100. Foldable bracket; 110. First flip assembly; 111. First connecting part; 1111. Pressing hole; 1112. Third wiring groove; 120. Second flip assembly; 121. Second connecting part; 122. Third connecting part; 123. Slide groove; 124. Limiting groove; 1241. Second resisting surface; 125. Mounting groove; 126. First wiring groove; 127. Second wiring groove; 130. Locking assembly; 131. Pressing element; 1311. Abutting part; 13111. Arc-shaped surface; 13112. First resisting surface; 1312. Button; 132. Elastic element; 140. Connecting assembly; 141. Through-plug; 142. Locking element; 150. Friction plate; 151. Limiting rib; 160. Motor; 161. Output shaft; 170. Rotating shaft; 171. Shaft hole; 180. Cable. Detailed Implementation

[0049] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0050] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0051] Furthermore, where the term "and / or" appears, "and / or" merely describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship. Where the terms "first" and "second" appear, these terms are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" can explicitly or implicitly include at least one of those features. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0052] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0053] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0054] It should be noted that if a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or there may be an intermediate component. If a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component. Where applicable, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0055] In foldable fan products, latches or screws are often used for positioning and fixing when adjusting the tilt, extending, or folding. However, this often requires relatively complex operations and involves complex assembly and numerous parts. Furthermore, the folding mechanism design often suffers from inconvenient operation, insufficient stability, or low safety. In addition, some folding mechanisms are prone to angle shifting due to accidental contact or vibration during use, affecting not only the user experience but also potentially posing safety hazards.

[0056] See Figure 1 and Figure 2 As shown, to improve the above-mentioned problems, an embodiment of this application provides a foldable support 100. It is understood that the foldable support 100 has two states: folded and open, and can automatically maintain the corresponding working state, with a simplified structure and convenient operation.

[0057] Specifically, the foldable bracket 100 includes a first flipping assembly 110, a second flipping assembly 120, and two locking assemblies 130. The first flipping assembly 110 is provided with a first connecting part 111, and the second flipping assembly 120 is provided with a second connecting part 121. The second connecting part 121 is rotatably connected to the first connecting part 111 to realize the folding and unfolding operations of both.

[0058] Understandably, one of the first flipping assembly 110 and the second flipping assembly 120 is equipped with a working mechanism for flipping and adjusting, while the other is connected to a support mechanism for maintaining fixation, so as to realize the flipping and adjusting operation of the device. For ease of understanding, this application embodiment uses an air supply device as an example for illustration. Specifically, the air supply device is a foldable circulating fan. The first flipping assembly 110 is equipped with a fan head assembly, and the second flipping assembly 120 is connected to the support assembly to realize the folding and storage of the fan head.

[0059] Furthermore, two locking components 130 are respectively disposed on opposite sides of the first connecting portion 111 to simultaneously lock both sides of the first connecting portion 111, maintain uniform force on both sides of the first connecting portion 111, and improve the stability of the overall structure.

[0060] Continue reading Figure 3 and Figure 4 As shown, by way of example, the second connecting part 121 has two sliding grooves 123 and two limiting grooves 124. The two sliding grooves 123 are arranged opposite to each other, and each side that is far away from each other is provided with a limiting groove 124. That is, the two sliding grooves 123 and the two limiting grooves 124 are distributed opposite to each other along the center line of the second connecting part 121 to facilitate the assembly of the two locking components 130.

[0061] Continue reading Figure 5 As shown, the locking assembly 130 includes two pressing members 131. These two pressing members 131 are distributed opposite each other along the centerline of the second connecting portion 121 and are retractably inserted into corresponding limiting grooves 124. Each pressing member 131 has an abutment portion 1311. When the abutment portion 1311 is located in the sliding groove 123, the first flipping assembly 110 can rotate relative to the second flipping assembly 120 to achieve folding or unfolding operations. When the abutment portion 1311 is located in the limiting groove 124, the first flipping assembly 110 is stationary relative to the second flipping assembly 120, maintaining the current folding or unfolding operation state.

[0062] Specifically, when state adjustment is required, the user can simultaneously press both pressing members 131 with one hand, causing both pressing members 131 to simultaneously enter the corresponding slide grooves 123, thereby operating the first flip component 110 to rotate relative to the second flip component 120, achieving the corresponding position adjustment. After reaching the corresponding position, the user releases the two pressing members 131, causing the two pressing members 131 to disengage from the slide grooves 123, and their respective abutment parts 1311 to engage with a corresponding limiting groove 124 to prevent rotation, keeping the first flip component 110 stationary relative to the second flip component 120, maintaining the current stable state.

[0063] Continue reading Figure 6 As shown, in some embodiments, the second connecting portion 121 is further provided with a connecting piece, and two sliding grooves 123 are disposed opposite to each other on both sides of the connecting piece, that is, the limiting groove 124 and the locking component 130 are distributed opposite each other with the connecting piece as the center line. The foldable bracket 100 also includes a connecting component 140, which passes through the connecting piece and the first connecting portion 111 to realize the rotational engagement of the first flipping component 110 and the second flipping component 120.

[0064] Continue reading Figure 7 As shown, the connecting assembly 140 further includes a through-plug 141 and a locking member 142. The through-plug 141 passes through the connecting piece and the first connecting part 111 in sequence and is then locked with the locking member 142 so that the first flipping assembly 110 can rotate along the axis of the through-plug 141.

[0065] In one embodiment, the insert 141 can be a bolt and the locking member 142 can be a nut, so that after the insert 141 passes through the connecting piece and the first connecting part 111, the nut and the bolt can be tightened by turning, thus completing the connection between the first flip assembly 110 and the second flip assembly 120.

[0066] In another embodiment, the insert 141 can also be a pin, and the locking member 142 can be a snap ring. Two snap rings are provided and are respectively locked at both ends of the pin so that the pin is fixed by the snap rings after the insert 141 passes through the connecting piece and the first connecting part 111.

[0067] Continue reading Figure 7 As shown, in some embodiments, the locking assembly 130 further includes an elastic element 132, one end of which abuts against the insert 141 and the other end against a corresponding pressing element 131. Another elastic element 132 abuts against the locking element 142 at one end and against another corresponding pressing element 131 at the other end.

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

[0069] In some embodiments, the pressing member 131 includes a button 1312, and an abutting portion 1311 is disposed at one end of the button 1312 through the second flipping component 120 and protrudes relative to the peripheral surface of the button 1312.

[0070] Specifically, the inner diameter of the slide groove 123 is larger than that of the limiting groove 124. When the abutment part 1311 is located in the slide groove 123, it can rotate freely relative to the first flipping assembly 110 within the slide groove 123, facilitating the flipping operation of the first flipping assembly 110. When the abutment part 1311 enters the limiting groove 124 with a smaller inner diameter under the action of the elastic member 132, the wall of the limiting groove 124 abuts against the side of the abutment part 1311, restricting the rotation of the pressing member 131 and keeping the relative position of the first flipping assembly 110 fixed.

[0071] In some embodiments, the abutting portion 1311 includes an arcuate surface 13111 and two first resisting surfaces 13112 distributed at both ends of the arcuate surface 13111. The limiting groove 124 is provided with two second resisting surfaces 1241 opposite to each other. When the abutting portion 1311 is located in the limiting groove 124, each second resisting surface 1241 abuts against the corresponding first resisting surface 13112.

[0072] For example, both the first resisting surface 13112 and the second resisting surface 1241 are planar structures, so that neither the abutting part 1311 nor the limiting groove 124 is a regular circular structure. When the abutting part 1311 is located in the limiting groove 124, the first resisting surface 13112 and the second resisting surface 1241 abut against each other, and the pressing member 131 cannot rotate within the limiting groove 124.

[0073] Continue reading Figure 8 As shown, in some embodiments, the foldable bracket 100 includes a plurality of friction plates 150, and the second connecting portion 121 has a plurality of mounting slots 125. Each mounting slot 125 is disposed opposite to the two sides of the connecting plate, and each friction plate 150 is respectively installed in the corresponding mounting slot 125. The insert 141 passes through each friction plate 150 in sequence.

[0074] For example, both the friction plate 150 and the mounting groove 125 are provided in pairs, with the two friction plates 150 symmetrically arranged on both sides of the connecting plate. During installation, the insert 141 passes through one friction plate 150, the connecting plate, and the other friction plate 150 in sequence and is then fixed to the locking member 142. This allows the friction plate 150 to provide friction to the second connecting member during rotation, counteracting some of the potential energy of the second connecting member during rotation, reducing the rotational speed of the second connecting member, and reducing component wear.

[0075] Continue reading Figure 9 As shown, in some embodiments, the friction plate 150 is provided with a limiting rib 151 on its side, and the limiting rib 151 is inserted into the mounting groove 125.

[0076] Specifically, the limiting rib 151 protrudes from the central body of the friction plate 150 so that during installation, the limiting rib 151 can be inserted into the mounting groove 125 to achieve the fixing and installation positioning of the friction plate 150.

[0077] Continue reading Figure 10 and Figure 11 As shown, in some embodiments, the foldable bracket 100 further includes a motor 160 and a rotating shaft 170. The second flipping assembly 120 is provided with a third connecting part 122, which is connected to one end of the second connecting part 121. The rotating shaft 170 is installed in the third connecting part 122 parallel to the direction of gravity. The output shaft 161 of the motor 160 is connected to the rotating shaft 170.

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

[0079] Both the motor 160 and the rotating shaft 170 can be fixed to the third connecting part 122 with screws. The third connecting part 122 also has corresponding holes for locking with the screws and rotatably engages with the support assembly. The rotating shaft 170 has a shaft hole 171 on its upper part and is connected to the output shaft 161 of the motor 160 through the shaft hole 171. Thus, driven by the motor 160, the rotating shaft 170 can drive the first tilting assembly 110 and the second tilting assembly 120 to rotate as a whole, realizing the oscillating and sweeping operation of the circulating fan.

[0080] See again Figure 3 As shown, in some embodiments, the third connecting part 122 has a first wiring groove 126, the second connecting part 121 has a second wiring groove 127, and the foldable bracket 100 also includes a cable 180. One end of the cable 180 is connected to the motor 160, and after passing through the first wiring groove 126 and the second wiring groove 127 in sequence, it extends into the first flipping component 110.

[0081] Specifically, the second cable routing groove 127 is located between the mounting groove 125 and the sliding groove 123. After the motor 160 is fixed to the second flipping assembly 120, one end of the cable 180 is connected to the motor 160 via a plug to meet the power supply requirements of the motor 160. Then, the cable 180 is sequentially inserted into the mounting groove 125 and the sliding groove 123 to fix the cable. In addition, the second cable routing groove 127 has an arc-shaped structure so that when the cable 180 is laid in the second cable routing groove 127, the cable 180 has sufficient extension and retraction length as the first flipping assembly 110 rotates, and will not cause problems such as knotting due to arbitrary movement.

[0082] Continue reading Figure 12 and Figure 13 As shown, pressing holes 1111 are further provided on both sides of the first connecting part 111. The shape of the pressing holes 1111 is adapted to the abutment part 1311 of the pressing member 131 so that it can freely pass through the pressing holes 1111 during the extension and retraction of the pressing member 131, so as to satisfy the pressing and resetting of the pressing member 131.

[0083] Furthermore, the first connecting part 111 is provided with a third cable tray 1112 on one side of the second cable tray 127, so as to lead the cable 180 from the second cable tray 127 out of the third cable tray 1112 and into the first flip assembly 110 through the third cable tray 1112 to connect with the fan head assembly. The third cable tray 1112 may be arc-shaped to meet the rotation limit of the cable 180, and the edges are rounded to reduce the wear of the cable 180 during the rotation of the first flip assembly 110.

[0084] Embodiments of this application also provide an air supply device, including the foldable bracket 100 in any of the above embodiments.

[0085] Specifically, the air supply device also includes a fan head assembly and a support assembly. The fan head assembly is rotatably connected to the first tilting assembly 110, allowing it to rotate relative to the first tilting assembly 110. Combined with the rotational capability of the second tilting assembly 120, it enables the fan head assembly to sweep air up, down, left, and right. The support assembly is rotatably connected to the second tilting assembly 120 and is placed on the bottom surface to support the fan head assembly. Simultaneously, the second tilting assembly 120 can rotate relative to the support assembly under the drive of the rotating shaft 170, thereby enabling the fan head assembly to sweep air left and right.

[0086] This embodiment has the foldable bracket 100 of any of the above embodiments, and therefore has all the beneficial effects of the foldable bracket 100 of any of the above embodiments, which will not be described in detail here.

[0087] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0088] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by 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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