Folding mechanism and folding circulating fan

Abstract

The utility model relates to a folding mechanism and a folding circulating fan, and relates to the technical field of folding. The folding mechanism comprises a machine body assembly, a support assembly and a limiting assembly, the support assembly is rotationally connected with the machine body assembly, and a plurality of fixing areas are formed on one of the machine body assembly and the support assembly; the limiting assembly comprises a limiting piece, and the limiting piece is arranged on the other one of the machine body assembly and the support assembly. And in a rotation stroke of the support assembly rotating relative to the machine body assembly, the limiting piece is sequentially matched with the fixing areas, so that the connection angle between the machine body assembly and the support assembly is adjusted. When the support assembly is in the unfolded or folded state, the support assembly can be limited, and the support assembly is prevented from shaking at will relative to the fuselage assembly.

Description

Technical Field

[0001] The present application relates to the field of folding technology, and in particular to a folding mechanism and a folding circulation fan. Background Art

[0002] Some circulating fans lack a folding and storage function, making them inconvenient and space-consuming to store in winter. The few folding fans that do have this function typically utilize a multi-joint telescopic design, with the folding mechanism mounted on the chassis. This results in significant wobbling when unfolded, poor product quality and reliability, and a poor user experience. Furthermore, the folding mechanism requires a fixed switch to lock, requiring two hands to operate, resulting in a poor user experience. Utility Model Content

[0003] Based on this, it is necessary to provide a folding mechanism and a folding circulation fan to address the problem that the folding mechanism of the circulation fan has poor reliability and requires manual locking.

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

[0005] In a first aspect, an embodiment of the present application provides a folding mechanism, comprising:

[0006] fuselage components;

[0007] a bracket assembly rotatably connected to the body assembly, wherein a plurality of fixing areas are formed on one of the body assembly and the bracket assembly; and

[0008] a limiting assembly, comprising a limiting member, wherein the limiting member is disposed on the other of the body assembly and the bracket assembly;

[0009] Wherein, during a rotation stroke of the bracket assembly relative to the fuselage assembly, the limiting member cooperates with each of the fixing areas in sequence to adjust the connection angle between the fuselage assembly and the bracket assembly.

[0010] With this design, when the bracket assembly is in the open or folded state, the stopper is fixed to the corresponding fixed area, thereby limiting the bracket assembly in this state and preventing it from shaking relative to the body assembly. Furthermore, when the bracket assembly is adjusted to the corresponding angle, the stopper can automatically lock the bracket assembly, eliminating the need for manual locking of the switch.

[0011] In one embodiment of the first aspect, the fixing area is constructed as an adsorption area, and during a rotation stroke of the bracket assembly relative to the fuselage assembly, the limiting member can be adsorbed by each of the adsorption areas passed through.

[0012] With the above design, when the bracket assembly reaches the set connection angle, the limiting member is adsorbed and fixed by the currently corresponding adsorption area, thereby maintaining the current connection angle of the bracket assembly relative to the fuselage assembly.

[0013] In one embodiment of the first aspect, the body assembly is provided with a first limiting groove, and the bracket assembly is provided with a plurality of second limiting grooves, wherein the plurality of second limiting grooves are sequentially arranged along a rotation path of the bracket assembly relative to the body assembly;

[0014] The limiting assembly further includes a plurality of adsorption members, each of which is telescopically arranged to pass through the first limiting groove, and each of the adsorption members is respectively installed in the corresponding second limiting groove;

[0015] When the bracket assembly rotates relative to the body assembly until one of the adsorption components contacts the limiting component, the limiting component is adsorbed and extends out of the first limiting groove and is fixed to the adsorption component.

[0016] Through the above design, the limiting member can be adsorbed by each of the adsorption members passing by, so as to adjust the connection angle between the fuselage assembly and the bracket assembly.

[0017] In one embodiment of the first aspect, a first sub-cavity is provided at one end of the second limiting groove close to the limiting member, and an inner wall of the first sub-cavity gradually increases in size in a direction close to the limiting member to form an inclined surface;

[0018] Wherein, the limiting member is provided in the first sub-cavity under the action of the corresponding adsorption member and is connected to the adsorption member;

[0019] The limiting member is also pressed by the inclined surface to return to its original position when the bracket assembly rotates relative to the body assembly.

[0020] Through the above design, when the state of the bracket assembly changes, it is only necessary to rotate the bracket assembly. Under the extrusion of the inclined surface, the limiting member can be separated from the first sub-cavity, separated from the adsorption member, and returned to the first limiting groove, thereby facilitating the rotation of the bracket assembly and realizing the change of state.

[0021] In one embodiment of the first aspect, the bracket assembly includes a rotating frame and a cover plate, the second limiting groove is arranged on the rotating frame and also includes a second sub-cavity connected to the first sub-cavity, the cover plate covers the outer side of the rotating frame provided with the second sub-cavity, and the cover plate is provided with a plurality of tightening blocks on the side close to the rotating frame, and each of the tightening blocks respectively presses against the adsorption part in the corresponding second sub-cavity.

[0022] Through the above design, the pressing block presses against the side of the magnetic block away from the limiting pin to prevent the magnetic block from falling.

[0023] In one embodiment of the first aspect, the body assembly includes a support rod and a raised frame, the raised frame is fixed to one side of the support rod, and the bracket assembly is rotatably connected to the raised frame.

[0024] The above design facilitates the overall rotation of the bracket assembly, thereby preventing the support rod from interfering with the bracket assembly during the rotation process.

[0025] In one embodiment of the first aspect, the folding mechanism further includes a connecting assembly, which includes a connecting member and a locking member. The connecting member is sequentially passed through the bracket assembly and the protrusion frame so that the rotating frame rotates relative to the protrusion frame with the connecting member as the axis, and the locking member is arranged at one end of the connecting member.

[0026] Through the above design, the rotating frame can rotate relative to the protruding frame and will not fall off the protruding frame during the movement.

[0027] In one embodiment of the first aspect, the folding mechanism further includes a plurality of friction plates, the protrusion frame is provided with a plurality of mounting slots, each of the friction plates is respectively mounted in the corresponding mounting slot, and the connecting member is sequentially passed through each of the friction plates.

[0028] With the above design, during the rotation of the rotating frame, the friction plate will provide friction to the rotating frame, offsetting part of the potential energy of the rotating frame during the rotation process, reducing the rotation speed of the rotating frame and reducing component wear.

[0029] In a second aspect, an embodiment of the present application further provides a folding circulation fan, comprising the folding mechanism and head assembly described in any of the above embodiments, wherein the head assembly is rotatably mounted on one end of the bracket assembly away from the fuselage assembly.

[0030] Through the above design, the folding circulation fan can be freely folded and stored, which is convenient for storage and reduces space occupation.

[0031] In one embodiment of the second aspect, the fuselage assembly includes a plurality of telescopic rods, and the telescopic rods are slidably sleeved in sequence.

[0032] Through the above design, the operating height adjustment of the folding circulation fan is achieved. During the folding and storage process, the storage space of the folding circulation fan can be further reduced by contracting the telescopic rod.

[0033] Compared with the related art, the beneficial effect of the present application is as follows: the present application provides a folding mechanism and a folding circulation fan, which can be used for the folding and storage of the circulation fan. The folding mechanism includes a bracket assembly, a fuselage assembly and a limit assembly. Among them, the fuselage assembly is rotatably connected to the bracket assembly, so that the folding or opening of the fuselage assembly and the bracket assembly is achieved by rotating the bracket assembly relative to the fuselage assembly. The limit assembly includes a limit member and a plurality of adsorption members, the limit member is slidably arranged on the fuselage assembly, and each adsorption member is respectively installed on the bracket assembly. In this way, when the bracket assembly is in an open or folded state, the limit member is tightly attracted to the adsorption member at the corresponding position, thereby limiting the bracket assembly in this state and preventing the bracket assembly from shaking arbitrarily relative to the fuselage assembly. At the same time, when the bracket assembly is adjusted to the corresponding angle, the limit member can automatically lock the bracket assembly, thereby eliminating the need to manually turn the switch to lock it. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0035] Figure 1 Schematic diagram of the assembly structure of the folding circulation fan in some embodiments of the present application Figure 1 ;

[0036] Figure 2 for Figure 1 AA cross-sectional structural diagram;

[0037] Figure 3 for Figure 2 The enlarged structural diagram of part C is shown;

[0038] Figure 4 for Figure 3 The enlarged structural diagram of the D portion shown;

[0039] Figure 5 Schematic diagram of the explosion structure of the folding circulation fan in some embodiments of this application Figure 1 ;

[0040] Figure 6 Schematic diagram of the explosion structure of the folding circulation fan in some embodiments of this application Figure 2 ;

[0041] Figure 7 Schematic diagram of the assembly structure of the folding circulation fan in some embodiments of the present application Figure 2 ;

[0042] Figure 8 for Figure 7 BB cross-sectional structure diagram;

[0043] Figure 9 for Figure 8 The enlarged structural diagram of part E is shown;

[0044] Figure 10 Schematic diagram of the folding structure of the folding circulation fan in some embodiments of the present application Figure 1 ;

[0045] Figure 11 Schematic diagram of the folding structure of the folding circulation fan in some embodiments of the present application Figure 2 .

[0046] Description of reference numerals:

[0047] 1000, folding circulation fan;

[0048] 100, folding mechanism; 110, body assembly; 111, support rod; 1111, telescopic rod; 112, raised frame; 1121, first limiting groove; 1122, mounting groove; 113, rear housing; 120, bracket assembly; 121, rotating frame; 1211, second limiting groove; 12111, first sub-cavity; 12112, second sub-cavity; 122, cover plate; 1221, tightening block; 130, limiting assembly; 131, limiting member; 1311, sliding section; 1312, connecting section; 132, adsorption member; 140, connecting assembly; 141, connecting member; 142, locking member; 150, friction plate;

[0049] 200. Machine head assembly. DETAILED DESCRIPTION

[0050] To make the above-mentioned objects, features, and advantages of the present application more clearly understood, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar improvements without violating the scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0051] In the description of this application, it should be understood that if 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", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0052] In addition, if the term "and / or" appears, "and / or" is merely a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent three situations: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the objects associated with each other are in an "or" relationship. If the terms "first" and "second" appear, these terms are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. 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, if the term "multiple" appears, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0053] In this application, unless otherwise specified or limited, the terms "mounted," "connected," "connected," "fixed," etc., should be interpreted broadly. For example, these terms may refer to fixed connections, removable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediary; and internal communication between two components or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0054] In this application, unless otherwise expressly specified or limited, if a first feature is described as being "above" or "below" a second feature, or similar descriptions, this may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is described as being "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is described as being "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0055] It should be noted that if 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 an intermediate element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. If any, 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 embodiment.

[0056] See Figure 1 As shown, the embodiment of the present application provides a folding mechanism 100 that can be used to fold various vertical electrical appliances, facilitate storage, and maintain stable operation. It should be noted that for ease of understanding, this application uses a folding circulation fan 1000 as an example application scenario of the folding mechanism 100, but the folding mechanism 100 is not limited to application on a folding circulation fan 1000.

[0057] See also Figure 2 and Figure 3 As shown, the folding mechanism 100 includes a body assembly 110, a bracket assembly 120, and a limiting assembly 130. The bracket assembly 120 is rotatably connected to the body assembly 110, and the limiting assembly 130 limits the position of the body assembly 110 and the bracket assembly 120 when they are folded or unfolded, so as to ensure that both remain stable in the current state.

[0058] Specifically, multiple fixing areas are formed on one of the body assembly 110 and the bracket assembly 120, and the position limiting assembly 130 includes a position limiting member 131. Position limiting member 131 is disposed on the other of the body assembly 110 and the bracket assembly 120. That is, if one of the body assembly 110 and the bracket assembly 120 is provided with multiple fixing areas, the other corresponding position limiting member 131 is disposed thereon. This allows for position limiting cooperation between the body assembly 110 and the bracket assembly 120 during rotation, and is not specifically limited herein. During a rotational stroke of the bracket assembly 120 relative to the body assembly 110, the position limiting member 131 sequentially cooperates with each fixing area to adjust the connection angle between the body assembly 110 and the bracket assembly 120.

[0059] A rotational stroke refers to the process of rotating the bracket assembly 120 from the open state toward the body assembly 110 to complete folding, or the process of rotating the bracket assembly 120 from the folded state away from the body assembly 110 to complete unfolding. The fixing areas are distributed along the rotation path of the stopper 131. When the stopper 131 rotates to a specified position, the stopper 131 is fixed to the corresponding fixing area, thereby securing the bracket assembly 120 relative to the body assembly 110.

[0060] Furthermore, the fixing area is constructed as an adsorption area. During a rotation stroke of the bracket assembly 120 relative to the body assembly 110 , the limiting member 131 can be adsorbed by each adsorption area along the way.

[0061] Specifically, during the rotation of the bracket assembly 120 , when the bracket assembly 120 reaches a set connection angle, the limiter 131 is adsorbed and fixed by the current corresponding adsorption area, thereby maintaining the current connection angle of the bracket assembly 120 relative to the fuselage assembly 110 .

[0062] Furthermore, the fuselage assembly 110 is provided with a first limiting groove 1121, and the bracket assembly 120 is provided with a plurality of second limiting grooves 1211. The plurality of second limiting grooves 1211 are arranged in sequence along the rotation path of the bracket assembly 120 relative to the fuselage assembly 110. The limiting assembly 130 includes a limiting member 131 and a plurality of adsorption members 132. The limiting member 131 is telescopically arranged in the first limiting groove 1121 along its own axial direction so as to be able to extend or retract relative to the first limiting groove 1121 under the action of an external force. Each adsorption member 132 is respectively installed in the corresponding second limiting groove 1211, so that when the bracket assembly 120 rotates relative to the fuselage assembly 110 until one of the adsorption members 132 contacts the limiting member 131, the adsorption member 132 adsorbs the limiting member 131 to keep the bracket assembly 120 and the fuselage assembly 110 relatively stable in the current position. More specifically, during a rotational stroke of the bracket assembly 120 relative to the body assembly 110 , the limiting member 131 can be adsorbed by each adsorption member 132 passing by, so as to adjust the connection angle between the body assembly 110 and the bracket assembly 120 .

[0063] In this embodiment, two adsorption members 132 are magnets, and the retaining member 131 is a metal cylindrical pin that can be attracted by the magnet. The two adsorption members 132 are respectively disposed at the beginning and end of a rotation range of the bracket assembly 120 relative to the body assembly 110, respectively, to secure the bracket assembly 120 relative to the body assembly 110 when folded and unfolded.

[0064] It is understandable that in other embodiments, the adsorption members 132 may be three, four, five, etc., and the specific selection may be made according to actual needs, so that multiple adsorption members 132 can also be set in the middle section of the rotation stroke, thereby controlling the rotation angle of the bracket assembly 120 and increasing the flexibility of use of the folding circulation fan 1000.

[0065] Continue reading Figure 4As shown, further, a first sub-cavity 12111 is defined at one end of the second retaining groove 1211 near the retaining member 131. The inner wall of the first sub-cavity 12111 gradually increases in size toward the retaining member 131, forming an inclined surface. The retaining member 131 is positioned within the first sub-cavity 12111 under the action of the corresponding suction member 132 and is connected to the suction member 132. Furthermore, the retaining member 131 can be pressed into its original position by the inclined surface when the bracket assembly 120 rotates relative to the body assembly 110.

[0066] Specifically, the suction member 132 is fixed in the second limiting groove 1211, and a portion of its surface is exposed to the first sub-cavity 12111, so that the limiting member 131, after receiving the suction force of the suction member 132, is inserted into the first sub-cavity 12111 and is tightly attracted to the suction member 132. By varying the inner diameter of the first sub-cavity 12111, an inclined surface is formed on the side of the second limiting groove 1211 close to the limiting member 131. When the bracket assembly 120 changes state, it only needs to rotate the bracket assembly 120. Under the pressure of the inclined surface, the limiting member 131 can be disengaged from the first sub-cavity 12111, separated from the suction member 132, and returned to the first limiting groove 1121, thereby facilitating the rotation of the bracket assembly 120 and achieving the change of state.

[0067] Furthermore, the limiting member 131 includes a sliding section 1311 and a connecting section 1312, the outer diameter of the connecting section 1312 decreases successively in the direction away from the sliding section 1311, and the end of the connecting section 1312 away from the sliding section 1311 passes through the first sub-cavity 12111 and is connected to the adsorption member 132.

[0068] Specifically, the sliding section 1311 has a cylindrical structure, and the connecting section 1312 has a truncated cone structure. The connecting section 1312 and the sliding section 1311 are integrally arranged, and the outer diameter decreases in the direction away from the sliding section 1311. The outer diameter of the connecting section 1312 is adapted to the inner diameter of the first sub-cavity 12111. In this way, when the limiter 131 is adsorbed by the adsorption member 132, the connecting section 1312 enters the first sub-cavity 12111 intactly and connects with the adsorption member 132, facilitating the connection and cooperation between the limiter 131 and the adsorption member 132. At the same time, when the state of the bracket assembly 120 is adjusted by rotation, the inclined surface of the first sub-cavity 12111 can also better apply force to the limiter 131, facilitating the separation of the limiter 131 from the adsorption member 132.

[0069] In some embodiments, the bracket assembly 120 includes a rotating frame 121 and a cover plate 122. A second retaining groove 1211 is provided on the rotating frame 121 and further includes a second sub-cavity 12112 communicating with the first sub-cavity 12111. The cover plate 122 covers the outer side of the rotating frame 121 where the second sub-cavity 12112 is provided. A plurality of abutting blocks 1221 are provided on a side of the cover plate 122 proximal to the rotating frame 121, each abutting block 1221 abutting against a corresponding adsorbent 132.

[0070] Specifically, the side of the second sub-cavity 12112 near the cover plate 122 is open, exposing the adsorbent 132 to the second sub-cavity 12112, facilitating installation and replacement of the adsorbent 132. The cover plate 122 removably covers the outside of the rotating frame 121, and abuts against the side of the adsorbent 132 away from the stopper 131 via abutting blocks 1221 to prevent the adsorbent 132 from falling. The abutting blocks 1221 are provided in a one-to-one correspondence with the adsorbents 132 to secure each adsorbent 132.

[0071] See also Figure 5 and Figure 6 As shown, in some embodiments, the fuselage assembly 110 includes a support rod 111 and a raised frame 112 . The raised frame 112 is fixed to one side of the support rod 111 , and the rotating frame 121 is rotatably connected to the raised frame 112 .

[0072] Specifically, the support rod 111 is vertically arranged, with one end connected to the ground to support the bracket assembly 120. The raised frame 112 is fixed to the end of the support rod 111 away from the ground and protrudes relative to the surface of the support rod 111. Furthermore, the raised frame 112 has a tripod structure to enhance the connection strength of the raised frame 112. Through the provision of the raised frame 112, the bracket assembly 120 is rotatably connected to the raised frame 112. The limiter 131 is also disposed within the raised frame 112, thereby facilitating the overall rotation of the bracket assembly 120 and preventing the support rod 111 from interfering with the bracket assembly 120 during rotation.

[0073] See also Figure 7 and Figure 8 As shown, in some embodiments, the folding mechanism 100 further includes a connecting assembly 140, which includes a connecting member 141 and a locking member 142. The connecting member 141 sequentially passes through the rotating frame 121 and the raised frame 112, so that the rotating frame 121 rotates relative to the raised frame 112 about the connecting member 141 as an axis. The locking member 142 is provided at one end of the connecting member 141 to restrict the connecting member 141 and prevent it from falling off during rotation.

[0074] Continue reading Figure 9 As shown, in one embodiment, the connecting member 141 can be a bolt, and the locking member 142 can be a corresponding nut. Both the rotating frame 121 and the raised frame 112 are provided with corresponding connection holes. After the bolt passes through the rotating frame 121 and the raised frame 112, it is locked and limited by the nut, so that the rotating frame 121 can rotate relative to the raised frame 112 and will not fall off the raised frame 112 during the movement.

[0075] In another embodiment, the connecting member 141 may be a pin with limit holes formed at both ends, and the locking member 142 may be a corresponding cotter pin, so that the cotter pin passes through the limit block of the pin to restrict the pin, so that the rotating frame 121 is installed on the protruding frame 112. Of course, in other embodiments, the rotating frame 121 and the protruding frame 112 may also be connected in a manner that satisfies the rotational connection between the rotating frame 121 and the protruding frame 112, and this is not specifically limited here.

[0076] In some embodiments, the folding mechanism 100 further includes a plurality of friction plates 150 . The rotating frame 121 is provided with a plurality of mounting slots 1122 . Each friction plate 150 is mounted in a corresponding mounting slot 1122 . The connecting member 141 passes through each friction plate 150 in sequence.

[0077] Exemplarily, two friction plates 150 and two mounting slots 1122 are provided, with the two friction plates 150 symmetrically positioned on either side of the rotating frame 121. During installation, the connecting member 141 sequentially passes through one friction plate 150, the rotating frame 121, and the other friction plate 150 before being secured to the locking member 142. During the rotation of the rotating frame 121, the friction plates 150 provide friction to the rotating frame 121, offsetting some of the potential energy of the rotating frame 121 during rotation, reducing the rotation speed of the rotating frame 121 and minimizing component wear. Furthermore, when stationary, the friction plates 150 can cooperate with the limiting assembly 130 to supplement the displacement restriction of the rotating frame 121, further ensuring the stability of the bracket assembly 120 and the fuselage assembly 110 in either the folded or unfolded state.

[0078] See also Figure 10 and Figure 11 As shown, the embodiment of the present application further provides a folding circulation fan 1000, comprising the folding mechanism 100 in any of the above embodiments. Through the setting of the folding mechanism 100, the folding circulation fan 1000 can be freely folded and stored, which is convenient for storage and reduces space occupation.

[0079] This embodiment has the folding mechanism 100 of any of the above embodiments, and therefore has all the beneficial effects of the folding mechanism 100 of any of the above embodiments, which will not be described in detail here.

[0080] Furthermore, the folding circulation fan 1000 also includes a head assembly 200 , which is rotatably mounted on an end of the bracket assembly 120 away from the body assembly 110 .

[0081] Specifically, the head assembly 200 may include blades and a drive motor. When powered, the drive motor rotates the blades to dissipate heat. The rotating frame 121 has a Y-shaped structure, with its bottom end pivotally connected to the body assembly 110. The head assembly 200 is mounted between the upper ends of the rotating frame 121 and pivotally connected to the upper ends of the rotating frame 121, thereby ensuring stable installation of the head assembly 200. During operation, the head assembly 200 can rotate relative to the bracket assembly 120 to adjust the operating angle.

[0082] Furthermore, the body assembly 110 further includes a rear housing 113, which covers the raised frame 112 to seal and shield the slots and components within the raised frame 112, such as the mounting slot 1122, the friction plate 150 mounted therein, the connector 141, and the stopper 131, thereby maintaining the aesthetic appearance of the folding circulation fan 1000.

[0083] In some embodiments, the support rod 111 includes multiple telescopic rods 1111, each of which is slidably connected in sequence. It is understood that each telescopic rod 1111 is a hollow tube structure with different outer diameters to achieve the mutual connection of the telescopic rods 1111. The specific principle is not described in detail here. The operating height of the folding circulation fan 1000 can be adjusted by adjusting the telescopic rods 1111. At the same time, during the folding and storage process, the storage space of the folding circulation fan 1000 can be further reduced by contracting the telescopic rods 1111.

[0084] In summary, the folding mechanism 100 and the folding circulation fan 1000 provided by the present application do not need to operate the locking switch during the folding process of the folding circulation fan 1000. The folding of the folding circulation fan 1000 can be completed by folding the bracket assembly 120 with force, which is simple to operate. At the same time, through the setting of the limit assembly 130, there is only transient limit damping in the folding and unfolding states of the folding circulation fan 1000. During the rest of the folding process, there is only friction damping provided by the friction plate 150, which makes the folding process more labor-saving. The folding circulation fan 1000 is stored in the form of an integrated telescopic rod 1111. The folding mechanism 100 is only arranged on the upper part of the whole machine, and there is no folding mechanism 100 at the bottom, which enhances the stability of the whole machine.

[0085] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned 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.

[0086] The above-described embodiments merely represent several implementation methods of the present application. 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 a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, and these modifications and improvements fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

Claims

1. A folding mechanism, characterized in that: include: fuselage components; a bracket assembly rotatably connected to the body assembly, wherein a plurality of fixing areas are formed on one of the body assembly and the bracket assembly; as well as a limiting assembly, comprising a limiting member, wherein the limiting member is disposed on the other of the body assembly and the bracket assembly; Wherein, during a rotation stroke of the bracket assembly relative to the fuselage assembly, the limiting member cooperates with each of the fixing areas in sequence to adjust the connection angle between the fuselage assembly and the bracket assembly.

2. The folding mechanism according to claim 1, characterized in that: The fixing area is constructed as an adsorption area. During a rotation stroke of the bracket assembly relative to the fuselage assembly, the limiting member can be adsorbed by each of the adsorption areas along the way.

3. The folding mechanism according to claim 2, characterized in that: The fuselage assembly is provided with a first limiting groove, and the bracket assembly is provided with a plurality of second limiting grooves, wherein the plurality of second limiting grooves are sequentially arranged along a rotation path of the bracket assembly relative to the fuselage assembly; The limiting assembly further includes a plurality of adsorption members, each of which is telescopically arranged to pass through the first limiting groove, and each of the adsorption members is respectively installed in the corresponding second limiting groove; When the bracket assembly rotates relative to the body assembly until one of the adsorption components contacts the limiting component, the limiting component is adsorbed and extends out of the first limiting groove and is fixed to the adsorption component.

4. The folding mechanism according to claim 3, characterized in that: A first sub-cavity is provided at one end of the second limiting groove close to the limiting member, and the inner wall of the first sub-cavity gradually increases in size in a direction close to the limiting member to form an inclined surface; Wherein, the limiting member is provided in the first sub-cavity under the action of the corresponding adsorption member and is connected to the adsorption member; The limiting member is also pressed by the inclined surface to return to its original position when the bracket assembly rotates relative to the body assembly.

5. The folding mechanism according to claim 4, characterized in that: The bracket assembly includes a rotating frame and a cover plate, the second limiting groove is arranged on the rotating frame and also includes a second sub-cavity connected to the first sub-cavity, the cover plate covers the outer side of the rotating frame provided with the second sub-cavity, and the cover plate is provided with a plurality of tightening blocks on the side close to the rotating frame, each of the tightening blocks respectively presses against the adsorption member in the corresponding second sub-cavity.

6. The folding mechanism according to claim 5, characterized in that: The fuselage assembly includes a support rod and a raised frame, the raised frame is fixed to one side of the support rod, and the bracket assembly is rotatably connected to the raised frame.

7. The folding mechanism according to claim 6, characterized in that: The folding mechanism also includes a connecting component, which includes a connecting piece and a locking piece. The connecting piece passes through the bracket component and the protruding frame in sequence so that the rotating frame rotates relative to the protruding frame with the connecting piece as the axis. The locking piece is arranged at one end of the connecting piece.

8. The folding mechanism according to claim 7, characterized in that: The folding mechanism further comprises a plurality of friction plates, the protruding frame is provided with a plurality of mounting slots, each of the friction plates is respectively mounted in the corresponding mounting slot, and the connecting member is sequentially passed through each of the friction plates.

9. A folding circulation fan, characterized in that: It comprises the folding mechanism and the head assembly according to any one of claims 1 to 8, wherein the head assembly is rotatably mounted on an end of the bracket assembly away from the fuselage assembly.

10. The folding circulation fan according to claim 9, characterized in that: The fuselage assembly includes a plurality of telescopic rods, and the telescopic rods are slidably sleeved in sequence.

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