Blower facility

Abstract

The invention relates to air supply equipment which comprises a main machine body, an air supply device and an air supply device. The bracket is rotatably mounted on the mounting seat in a first direction; the air supply device is mounted on the bracket; and the folding driving assembly is installed at the joint of the support and the air supply device, and the folding driving assembly is used for driving the support to rotate in the first direction so that the air supply device can be switched between the unfolded state away from the main machine body and the folded state close to the main machine body. According to the air supply equipment, due to the fact that the support is automatically driven by the folding driving assembly to rotate in the first direction so that the air supply device can be switched between the unfolded state and the folded state, folding and storage operation can be carried out instead of the two hands of a user, and folding and storage of the air supply equipment are facilitated; and potential safety hazards in the manual folding process are eliminated.

Description

Technical Field

[0001] The present application relates to the technical field of cooling equipment, and in particular to an air supply equipment. Background Art

[0002] With the development of science and technology and the improvement of living standards, people's requirements for the comfort of living environment are gradually increasing. Electric fans use motors to drive the blades to rotate to accelerate the circulation of air. They have the functions of cooling down and circulating air. They are widely used in people's production and life, effectively improving people's living and working environment.

[0003] An electric fan usually includes a main body and a head mounted on the main body. In order to improve the storage convenience of the electric fan, some electric fans adopt a foldable design, and the user can flip the head up and down to achieve the function of folding the head for easy storage of the electric fan. However, during the folding process, if the user is not careful, the hand may be pinched by the head, which leads to safety hazards of the electric fan and affects the user experience. Summary of the invention

[0004] The present application provides an air supply device to address the potential safety hazard of an electric fan during its folding process.

[0005] According to one aspect of the present application, there is provided an air supply device, comprising:

[0006] A main body, one end of which is provided with a mounting seat;

[0007] A bracket, rotatably mounted on the mounting seat around a first direction;

[0008] an air supply device, mounted on the bracket; and

[0009] A folding drive assembly is installed at the connection between the bracket and the air supply device, and the folding drive assembly is used to drive the bracket to rotate around the first direction so that the air supply device switches between an unfolded state away from the main body and a folded state close to the main body.

[0010] In one embodiment, the folding drive assembly includes:

[0011] A driving member, fixedly connected to the mounting seat; and

[0012] The gear transmission mechanism is used to transmission-connect the driving member and the bracket, and the driving member drives the bracket to rotate around the first direction through the gear transmission mechanism.

[0013] In one embodiment, the mounting seat includes an assembly wall, the assembly wall is provided with a connecting hole, the driving member includes a driving member body and an output shaft, the driving member body is supported against the assembly wall, and the output shaft passes through the connecting hole and is connected to the gear transmission mechanism.

[0014] In one of the embodiments, a positioning groove is provided on the edge of the assembly wall, and a positioning member is provided on the driving member body, and the positioning member is fixed in the positioning groove.

[0015] In one embodiment, the gear transmission mechanism comprises:

[0016] A first bevel gear, connected to the driving member, wherein the first bevel gear rotates in a second direction perpendicular to the first direction under the driving of the driving member; and

[0017] The second bevel gear is fixed to the bracket and meshes with the first bevel gear. The second bevel gear rotates around the first direction under the drive of the first bevel gear.

[0018] In one embodiment, the mounting seat is provided with two rotating shaft grooves spaced apart in the first direction, the bracket has a first rotating shaft and a second rotating shaft spaced apart in the first direction, the first rotating shaft and the second rotating shaft are respectively limited in one of the rotating shaft grooves, and the second bevel gear is fixed between the first rotating shaft and the second rotating shaft.

[0019] In one embodiment, the second bevel gear is provided with two interval-arranged fixing screw columns on one end face in the axial direction, and the second bevel gear is provided with a connecting screw column on the other end face in the axial direction. The two fixing screw columns are inserted into the first rotating shaft, and the connecting screw column is inserted into the second rotating shaft.

[0020] In one of the embodiments, the air supply device further comprises an outer cover, wherein the outer cover is disposed on the mounting seat, and the outer cover and the mounting seat together form a receiving space for receiving the folding drive assembly.

[0021] In one embodiment, the outer cover is provided with two rotation axis limiting portions spaced apart in the first direction, and each of the rotation axis limiting portions is correspondingly inserted into one of the rotation axis grooves to limit the first rotation axis and the second rotation axis.

[0022] In one of the embodiments, the mounting seat is provided with a fixing buckle, and the outer cover is provided with a snap buckle, and the fixing buckle and the snap buckle are snapped together to make the mounting seat and the outer cover match each other.

[0023] In one of the embodiments, the mounting seat is provided with a mounting seat screw column, the outer cover is provided with an outer cover screw column, and the outer cover screw column is correspondingly connected to the mounting seat screw column.

[0024] In the above-mentioned air supply device, the folding drive component automatically drives the bracket to rotate around the first direction to realize the switching of the air supply device between the unfolded state and the folded state, thereby replacing the user's hands to perform the folding and storage operation, facilitating the folding and storage of the air supply device and eliminating the safety hazards during manual folding. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] FIG1 is a schematic structural diagram of an air supply device of an air supply device according to an embodiment of the present application when the air supply device is in an unfolded state.

[0026] FIG2 is a schematic structural diagram of an air supply device of an air supply device according to an embodiment of the present application when the air supply device is in a folded state.

[0027] FIG. 3 is a schematic diagram of a partial structure of an air supply device according to an embodiment of the present application.

[0028] FIG. 4 is a top view of the air supply device of the air supply equipment according to an embodiment of the present application when the air supply device is in a folded state.

[0029] FIG. 5 is a partial enlarged schematic diagram of point A of the air supply device shown in FIG. 4 .

[0030] FIG. 6 is a schematic structural diagram of a mounting base of an air supply device according to an embodiment of the present application.

[0031] FIG. 7 is a schematic structural diagram of the mounting base shown in FIG. 6 from another angle.

[0032] FIG. 8 is a schematic structural diagram of the mounting base shown in FIG. 6 from another angle.

[0033] FIG. 9 is a schematic structural diagram of a bracket of an air supply device according to an embodiment of the present application.

[0034] FIG. 10 is a schematic structural diagram of the bracket shown in FIG. 9 at another angle.

[0035] FIG. 11 is a schematic structural diagram of a first bevel gear according to an embodiment of the present application.

[0036] FIG. 12 is a schematic structural diagram of a second bevel gear according to an embodiment of the present application.

[0037] FIG. 13 is a schematic structural diagram of an outer cover according to an embodiment of the present application.

[0038] Description of Figure Numbers:

[0039] 100, air supply device; 10, main body; 12, mounting seat; 121, first mounting portion; 121a, matching groove; 123, second mounting portion; 1232, mounting bottom wall; 1232a, mounting seat screw column; 1234, mounting side wall; 1234a, rotating shaft groove; 1236, assembly wall; 1236a, communicating hole; 1236b, positioning groove; 125, fixing buckle; 30, air supply device; 50, bracket; 52, bracket mounting portion; 521, first rotating shaft; 523, second rotating shaft; 54, supporting arm; 70, folding drive assembly; 72, driving member; 721, driving member body; 723, output shaft; 74, gear transmission mechanism; 741, first bevel gear; 7412, mounting sleeve; 743, second bevel gear; 7432, fixing screw column; 7434, connecting screw column; 90, outer cover; 92, shaft limiting part; 94, buckle; 96, outer cover screw column. DETAILED DESCRIPTION

[0040] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of 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 violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0041] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0042] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0043] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0044] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0045] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0046] Referring to FIG. 1 , an embodiment of the present application provides an air supply device 100, including a main body 10 and an air supply device 30. The main body 10 is generally a vertically extending cylindrical structure, and the air supply device 30 is installed at one end of the main body 10, including an air supply housing, a fan blade and a fan blade driving member arranged in the air supply housing, and the fan blade can rotate under the drive of the fan blade driving member 72, thereby forming a directional flow of airflow to achieve a cooling effect. It can be understood that the overall structure of the air supply device 100 is not limited to this, and can be set as needed to meet different cooling requirements.

[0047] As shown in FIG. 1 and FIG. 2 , in order to realize the folding and storage of the air supply device 100, the air supply device 100 further includes a bracket 50 and a folding drive assembly 70. Specifically, a mounting seat 12 is provided at one end of the main body 10, the bracket 50 is rotatably mounted on the mounting seat 12 around a first direction, and the folding drive assembly 70 is mounted at the connection between the bracket 50 and the air supply device 30, and the folding drive assembly 70 is used to drive the bracket 50 to rotate around the first direction, so that the air supply device 30 switches between an unfolded state away from the main body 10 and a folded state close to the main body 10.

[0048] In the above-mentioned air supply device 100, the bracket 50 is automatically driven to rotate around the first direction by the folding drive component 70 to realize the switching of the air supply device 30 between the unfolded state and the folded state, thereby replacing the user's hands to perform the folding and storage operation, facilitating the folding and storage of the air supply device 100 and eliminating the safety hazards during the manual folding process.

[0049] In the following embodiments, the vertical direction is defined as the Z direction in FIG. 2 , the first direction is defined as the X direction in FIG. 4 , and the second direction is defined as the Y direction in FIG. 2 , wherein the first direction and the second direction extend horizontally, and the first direction, the second direction and the vertical direction are perpendicular to each other.

[0050] When the air supply device 30 is in the unfolded state, the air supply device 30 is located directly above the main body 10 in the vertical direction, and the axial direction of the air supply device 30 is parallel to the second direction. When the air supply device 30 is in the folded state, the air supply device 30 rotates downward to one side of the main body 10 in the second direction, and the axial direction of the air supply device 30 is still parallel to the second direction.

[0051] 3 to 5 , in some embodiments, the folding drive assembly 70 includes a drive member 72 and a gear transmission mechanism 74. The drive member 72 is fixed to the mounting base 12, and the gear transmission mechanism 74 is connected to the drive member 72 and the bracket 50, and the drive member 72 drives the bracket 50 to rotate around the first direction through the gear transmission mechanism 74.

[0052] Unlike the manual folding solution, which requires the use of bolts and nuts to fix and increase damping to achieve the folding positioning function, which may cause the folding mechanism to fail after long-term folding use, the present application uses the cooperation of the driving member 72 and the gear transmission mechanism 74 to achieve the folding function, which is less likely to fail even after long-term use, effectively improving the user experience of the air supply device 100.

[0053] As shown in FIGS. 6 to 8 , the mounting seat 12 includes a first mounting portion 121 and a second mounting portion 123. The first mounting portion 121 is a hollow cylindrical structure, and the first mounting portion 121 can be sleeved on one end of the main body 10 in the vertical direction, or can be integrally formed with the main body 10. One end of the second mounting portion 123 is connected to the first mounting portion 121, and the other end of the second mounting portion 123 extends obliquely upward in a direction away from the first mounting portion 121. The bracket 50 is rotatably mounted on one end of the second mounting portion 123 away from the first mounting portion 121, and the folding drive assembly 70 is disposed in the mounting seat 12.

[0054] Further, the second mounting portion 123 includes a mounting bottom wall 1232, two mounting side walls 1234 and an assembly wall 1236. One end of the mounting bottom wall 1232 is connected to the first mounting portion 121, and the other end of the mounting bottom wall 1232 extends obliquely upward in a direction away from the first mounting portion 121. The two mounting side walls 1234 are respectively arranged on opposite sides of the mounting bottom wall 1232 in the first direction, and one end of the two mounting side walls 1234 away from the first mounting portion 121 is respectively provided with a rotation shaft groove 1234a, and the two rotation shaft grooves 1234a are arranged at intervals in the first direction for mounting the bracket 50. The assembly wall 1236 is arranged on a side of the mounting bottom wall 1232 away from the main body 10 and is located between the two mounting side walls 1234. The assembly wall 1236 is provided with a connecting hole 1236a. The driving member 72 of the folding driving assembly 70 is fixedly connected to the mounting seat 12 through the assembly wall 1236, and is transmission-connected with the bracket 50 through the connecting hole 1236a.

[0055] Referring to Figures 5, 9 and 10, the bracket 50 generally includes a bracket mounting portion 52 and two support arms 54. The bracket mounting portion 52 is rotatably mounted on an end of the second mounting portion 123 of the mounting seat 12 away from the main body 10 around a first direction. The two support arms 54 are respectively located on opposite sides of the bracket mounting portion 52 in the first direction, and one end of each support arm 54 is connected to the bracket mounting portion 52, and the other end of the support arm 54 is bent and extended toward the end away from the connection bracket 50, and the two support arms 54 together form a semicircular structure, and the air supply device 30 is installed between the two support arms 54.

[0056] Specifically, the bracket mounting portion 52 includes two first rotating shafts 521 and second rotating shafts 523 that are relatively arranged in the first direction. The central axes of the first rotating shaft 521 and the second rotating shaft 523 extend along the first direction. The first rotating shaft 521 and the second rotating shaft 523 are respectively limited in a rotating shaft groove 1234a of the mounting seat 12, so that the bracket 50 can be rotatably installed on the mounting seat 12 around the first direction.

[0057] As shown in Figures 5 and 6, the driving member 72 includes a driving member body 721 and an output shaft 723. The driving member body 721 is supported on the side of the assembly wall 1236 of the mounting seat 12 close to the first mounting portion 121. One end of the output shaft 723 is connected to the driving member body 721, and the other end of the output shaft 723 passes through the connecting hole 1236a along the second direction to be connected to the gear transmission mechanism 74. The output shaft 723 can rotate around its own central axis under the drive of the driving member body 721 to output torque.

[0058] Furthermore, the assembly wall 1236 of the mounting seat 12 is provided with positioning grooves 1236b on the opposite side edges in the first direction, and the driving member body 721 is provided with a positioning member, the shape of which matches the shape of the positioning groove 1236b, and is fixed in the positioning groove 1236b by fasteners such as screws.

[0059] Please refer to Figures 3 and 6. The gear transmission mechanism 74 includes a first bevel gear 741 and a second bevel gear 743. The first bevel gear 741 and the second bevel gear 743 are meshed with each other, so that the driving member 72 is connected to the bracket 50 and the rotation of the output shaft 723 of the driving member 72 around the second direction is converted into the rotation of the bracket 50 around the first direction.

[0060] As shown in Figures 6 and 11, specifically, a mounting sleeve 7412 is protruding from one end of the first bevel gear 741, and the mounting sleeve 7412 is sleeved on the output shaft 723 of the driving member 72 along the second direction, so that the first bevel gear 741 is matched with the driving member 72 and can rotate around the second direction under the drive of the driving member 72.

[0061] As shown in Figures 6 and 12, the second bevel gear 743 is provided with two interval-arranged fixing screw columns 7432 on one end face of its axial direction, and the second bevel gear 743 is provided with a connecting screw column 7434 on the other end face of its axial direction. The two fixing screw columns 7432 are inserted into the first rotating shaft 521 of the bracket 50, and the connecting screw column 7434 is inserted into the second rotating shaft 523 of the bracket 50, so that the second bevel gear 743 is fixedly connected between the first rotating shaft 521 and the second rotating shaft 523, and is located at an end portion of the second mounting portion 123 of the mounting seat 12 away from the first mounting portion 121.

[0062] In this way, the second bevel gear 743 is fixed to the bracket 50 and can mesh with the first bevel gear 741. The first bevel gear 741 rotates around the second direction under the drive of the driving member 72, and the second bevel gear 743 rotates around the first direction driven by the first bevel gear 741, thereby driving the bracket 50 to rotate synchronously around the first direction.

[0063] Please refer to Figures 3, 6 and 13. In some embodiments, the air supply device 100 also includes an outer cover 90. The outer cover 90 is in a "V"-shaped structure and is covered on the mounting seat 12. The outer cover 90 and the mounting seat 12 together form a accommodating space for accommodating the folding drive assembly 70, thereby protecting the folding drive assembly 70 and preventing foreign objects in the external environment from entering the folding drive assembly 70.

[0064] Furthermore, the outer cover 90 is provided with two rotating shaft limiting parts 92 spaced apart in the first direction, and each rotating shaft limiting part 92 is inserted into a rotating shaft groove 1234a to limit the first rotating shaft 521 and the second rotating shaft 523, so as to ensure that the first rotating shaft 521 and the second rotating shaft 523 run smoothly in the rotating shaft groove 1234a. As a preferred embodiment, the end surface of the rotating shaft limiting part 92 that contacts the first rotating shaft 521 or the second rotating shaft 523 is in an arc shape, so as to match the shape of the outer circumferential surface of the first rotating shaft 521 and the second rotating shaft 523.

[0065] In some embodiments, the mounting base 12 is provided with a fixing buckle 125, and the outer cover 90 is provided with a buckle 94, and the fixing buckle 125 and the buckle 94 are mutually engaged to enable the mounting base 12 and the outer cover 90 to be mutually matched. It can be understood that the number and setting positions of the fixing buckles 125 and the number and setting positions of the buckles 94 can be set as required, and are not limited here to meet different matching requirements.

[0066] Furthermore, a mounting base screw column 1232a (as shown in FIG. 8 ) is protruded from the mounting bottom wall 1232 of the second mounting portion 123 of the mounting base 12 on the side facing away from the assembly wall 1236, and an outer cover screw column 96 is protruded from the outer cover 90 on the side. The outer cover screw column 96 is correspondingly connected to the mounting base screw column 1232a, so that fasteners such as screws can pass through the outer cover screw column 96 and be fixed in the mounting base screw column 1232a, thereby fixing the mounting base 12 and the outer cover 90 to each other.

[0067] As a preferred embodiment, one end edge of the mounting seat 12 is in an inwardly concave arc shape, and the first mounting portion 121 of the mounting seat 12 has a matching groove 121a on one end edge facing the main body 10, and the arc-shaped end edge of the mounting seat 12 is inserted into the matching groove 121a, thereby ensuring the overall beauty of the appearance.

[0068] The above-mentioned air supply device 100 is assembled as follows:

[0069] First, the driving member 72 is installed on the assembly wall 1236 of the second mounting portion 123 of the mounting seat 12, the positioning member of the driving member 72 is located in the positioning groove 1236b and fixed by fasteners, and the output shaft 723 of the driving member 72 passes through the connecting hole 1236b.

[0070] Then, the mounting sleeve 7412 of the first bevel gear 741 is sleeved on one end of the output shaft 723 passing through the connecting hole 1236 b , and the mounting sleeve 7412 and the output shaft 723 are interference fit, so that the first bevel gear 741 and the output shaft 723 are fixedly connected.

[0071] Afterwards, the second bevel gear 743 is inserted into the bracket mounting part 52 of the bracket 50, the two fixing screw columns 7432 of the second bevel gear 743 are inserted into the first rotating shaft 521 of the bracket mounting part 52 and fixed by fasteners, and the connecting screw column 7343 of the second bevel gear 732 is inserted into the second rotating shaft 523 of the bracket mounting part 52 and fixed by fasteners, so that the second bevel gear 743 is fixed to the bracket mounting part 52.

[0072] Finally, the fixed bracket 50 and the second bevel gear 732 are placed as a whole into the mounting base 12 on which the driving member 72 and the first bevel gear 741 are installed. The first rotating shaft 521 and the second rotating shaft 523 of the bracket 50 are respectively limited in the two rotating shaft grooves 1234a of the mounting base 12, and then the outer cover 90 is installed on the mounting base 12. The rotating shaft limiting portion 92 of the outer cover 90 extends into the rotating shaft groove 1234a, the buckle 94 of the outer cover 90 and the fixing buckle 125 of the mounting base 12 are matched with each other, and the outer cover screw column 96 and the mounting base screw column 1232a are fixed to each other through fasteners, and finally the entire assembly step is completed.

[0073] The above-mentioned air supply device 100 drives the gear transmission mechanism 74 through the driving member 72 to drive the air supply device 30 to rotate, thereby realizing automatic switching of the air supply device 30 between the unfolded state and the folded state, eliminating the safety hazards caused by manual operation, and will not fail after long-term use. Moreover, the entire folding drive component 70 adopts a modular assembly design and has a higher assembly effect.

[0074] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described 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.

[0075] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. An air supply device, characterized in that: include: A main body (10), wherein a mounting seat (12) is provided at one end of the main body (10); A bracket (50) rotatably mounted on the mounting seat (12) about a first direction; an air supply device (30), mounted on the bracket (50); and A folding drive assembly (70) is installed at the connection between the bracket (50) and the air supply device (30), and the folding drive assembly (70) is used to drive the bracket (50) to rotate around the first direction, so that the air supply device (30) switches between an unfolded state away from the main body (10) and a folded state close to the main body (10).

2. The air supply device according to claim 1, characterized in that: The folding drive assembly (70) comprises: A driving member (72) fixedly connected to the mounting seat (12); and A gear transmission mechanism (74) is transmission-connected between the driving member (72) and the bracket (50), wherein the driving member (72) drives the bracket (50) to rotate about the first direction via the gear transmission mechanism (74).

3. The air supply device according to claim 2, characterized in that: The mounting seat (12) comprises an assembly wall (1236), the assembly wall (1236) is provided with a connecting hole (1236a), the driving member (72) comprises a driving member body (721) and an output shaft (723), the driving member body (721) is abutted against the assembly wall (1236), and the output shaft (723) passes through the connecting hole (1236a) to be connected to the gear transmission mechanism (74).

4. The air supply device according to claim 3, characterized in that: The edge of the assembly wall (1236) is provided with a positioning groove (1236b), and the driving member body (721) is provided with a positioning member (7212), and the positioning member (7212) is fixedly connected in the positioning groove (1236b).

5. The air supply device according to claim 2, characterized in that: The gear transmission mechanism (74) comprises: a first bevel gear (741) connected to the driving member (72), wherein the first bevel gear (741) rotates in a second direction perpendicular to the first direction under the drive of the driving member (72); and The second bevel gear (743) is fixedly connected to the bracket (50) and meshes with the first bevel gear (741); the second bevel gear (743) rotates around the first direction under the drive of the first bevel gear (741).

6. The air supply device according to claim 5, characterized in that: The mounting seat (12) is provided with two rotating shaft grooves (1234a) spaced apart in the first direction; the bracket (50) has a first rotating shaft (521) and a second rotating shaft (523) spaced apart in the first direction; the first rotating shaft (521) and the second rotating shaft (523) are respectively limited in one of the rotating shaft grooves (1234a); and the second bevel gear (743) is fixedly connected between the first rotating shaft (521) and the second rotating shaft (523).

7. The air supply device according to claim 6, characterized in that: The second bevel gear (743) has two spaced-apart fixing screw columns (7432) protruding from one end surface in the axial direction, and the second bevel gear (743) has a connecting screw column (7434) protruding from the other end surface in the axial direction. The two fixing screw columns (7432) are inserted into the first rotating shaft (521), and the connecting screw column (7434) is inserted into the second rotating shaft (523).

8. The air supply device according to claim 6, characterized in that: The air supply device further comprises an outer cover (90), the outer cover (90) being arranged to cover the mounting seat (12), the outer cover (90) and the mounting seat (12) together forming a receiving space for receiving the folding drive assembly (70).

9. The air supply device according to claim 8, characterized in that: The outer cover (90) is provided with two rotating shaft limiting portions (92) spaced apart in the first direction, and each rotating shaft limiting portion (92) is correspondingly inserted into one of the rotating shaft grooves (1234a) to limit the first rotating shaft (521) and the second rotating shaft (523).

10. The air supply device according to claim 9, characterized in that: The mounting seat (12) is provided with a fixing buckle (125), and the outer cover (90) is provided with a snap buckle (94), and the fixing buckle (125) and the snap buckle (94) are snap-fitted to each other so that the mounting seat (12) and the outer cover (90) are matched with each other.

11. The air supply device according to claim 10, characterized in that: The mounting seat (12) is provided with a mounting seat screw column (1232a), and the outer cover (90) is provided with an outer cover screw column (96), and the outer cover screw column (96) is correspondingly connected to the mounting seat screw column (1232a).

Images