Folding mechanism and folding circulating fan

Abstract

The invention 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] In the related art, some circulation fans do not have the folding and storage function, which makes it impossible to store the product in winter, inconvenient to store, and takes up space. The few folding fans with folding and storage functions generally adopt a multi-joint telescopic solution, and the folding mechanism is set on the chassis, which causes the product to shake a lot when unfolded and used, and the product quality reliability is poor, and the user experience is poor. In addition, the folding mechanism requires a fixed switch to lock, which requires two hands to operate, and the user experience is not good. Summary of the invention

[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 fuselage assembly and the bracket assembly;

[0009] Wherein, in 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 achieve adjustment of the connection angle between the fuselage assembly and the bracket assembly.

[0010] Through the above design, when the bracket assembly is in an open or folded state, the limiter is fixed to the fixed area 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 a corresponding angle, the limiter can automatically lock the bracket assembly without manually turning the switch to lock it.

[0011] In one of the embodiments of the first aspect, the fixing area is constructed as an adsorption area, and in 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] Through the above design, when the bracket assembly reaches the set connection angle, the limiter 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 fuselage assembly is provided with a first limiting groove, the bracket assembly is provided with a plurality of second limiting grooves, and the plurality of second limiting grooves are sequentially arranged along a rotation path of the bracket assembly relative to the fuselage assembly;

[0014] The limiting assembly further includes a plurality of adsorption members, the limiting members are telescopically arranged in the first limiting grooves, and each of the adsorption members is respectively installed in the corresponding second limiting grooves;

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

[0016] Through the above design, the limiting member can be adsorbed by each of the adsorbing 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 penetrated into 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 fuselage 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, which is convenient for the rotation of the bracket assembly to achieve the change of state.

[0021] In one of the embodiments 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 second sub-cavity provided on the rotating frame, and a plurality of clamping blocks are provided on a side of the cover plate close to the rotating frame, and each of the clamping blocks respectively clamps against the adsorption component corresponding to the 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 of the embodiments of the first aspect, the body assembly includes a support rod and a protruding frame, the protruding frame is fixed to one side of the support rod, and the bracket assembly is rotatably connected to the protruding 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 of the embodiments of the first aspect, the folding mechanism also includes a connecting component, which includes a connecting member and a locking member. The connecting member is sequentially passed through the bracket assembly and the protruding frame so that the rotating frame rotates relative to the protruding 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 of the embodiments of the first aspect, the folding mechanism further includes a plurality of friction plates, the protrusion frame is provided with a plurality of mounting grooves, each of the friction plates is respectively mounted in the corresponding mounting groove, and the connecting member is passed through each of the friction plates in sequence.

[0028] Through the above design, during the rotation of the rotating frame, the friction plate will provide friction to the rotating frame, offset part of the potential energy of the rotating frame during the rotation process, reduce the rotation speed of the rotating frame, and reduce the loss of components.

[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 the occupied space.

[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 adsorbents, the limit member is slidably arranged on the fuselage assembly, and each adsorbent is installed on the bracket assembly respectively. In this way, when the bracket assembly is in an open or folded state, the limit member is tightly sucked by the adsorbent 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 a corresponding angle, the limit member can automatically lock the bracket assembly, so that there is no need to manually turn the switch to lock. 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 drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. 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 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 the C part is shown;

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

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

[0040] Figure 6 Schematic diagram of the explosion structure of the folding circulation fan in some embodiments of the present 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] Fig. 9 for Figure 8 The enlarged structural diagram of the E part shown;

[0044] Fig.10 The folding structure of the folding circulation fan in some embodiments of the present application is shown in FIG. Figure 1 ;

[0045] Fig.11 The folding structure of the folding circulation fan in some embodiments of the present application is shown in FIG. Figure 2 .

[0046] Description of reference numerals:

[0047] 1000, folding circulation fan;

[0048] 100, folding mechanism; 110, fuselage assembly; 111, support rod; 1111, telescopic rod; 112, raised frame; 1121, first limiting groove; 1122, mounting groove; 113, rear shell; 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] 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.

[0051] In the description of the present 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 the present 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 the present 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: 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 before and after 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 clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated 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 the specific circumstances.

[0054] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it 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. Moreover, the first feature being "above", "above" and "above" the 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. The first feature being "below", "below" and "below" the 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.

[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 a central 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 a central element at the same time. 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 implementation method.

[0056] See also Figure 1 As shown, the embodiment of the present application provides a folding mechanism 100, which can be used for the folding needs of various vertical electrical appliances, which is convenient for storage and maintains stable operation. It should be noted that, for ease of understanding, the present 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 the application on the folding circulation fan 1000.

[0057] See also Figure 2 and Figure 3 As shown, specifically, 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 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, a plurality of fixing areas are formed on one of the body assembly 110 and the bracket assembly 120, and the limiting assembly 130 includes a limiting member 131, and the 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 a plurality of fixing areas, then the other correspondingly provided with the limiting member 131 can realize the limiting cooperation of the body assembly 110 and the bracket assembly 120 during the rotation process, and no specific limitation is made here. In a rotation stroke of the bracket assembly 120 relative to the body assembly 110, the limiting member 131 cooperates with each fixing area in turn to realize the adjustment of the connection angle between the body assembly 110 and the bracket assembly 120.

[0059] Among them, a rotation stroke refers to the process in which the bracket assembly 120 rotates from the open state toward the body assembly 110 to complete the folding process, or the process in which the bracket assembly 120 rotates from the folded state to the direction away from the body assembly 110 to complete the opening process. Each fixing area is distributed on the rotation path of the limiter 131, so that when the limiter 131 rotates to a specified position, the limiter 131 is fixed to the corresponding fixing area to achieve the fixation of the bracket assembly 120 relative to the body assembly 110.

[0060] Furthermore, the fixing area is constructed as an adsorption area, and in a rotation stroke of the bracket assembly 120 relative to the fuselage assembly 110, the limiting member 131 can be adsorbed by each adsorption area passed through.

[0061] Specifically, during the rotation of the bracket assembly 120 , when the bracket assembly 120 reaches a set connection angle, the stopper 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 sequentially arranged 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 adsorbing members 132, and the limiting member 131 is telescopically arranged in the first limiting groove 1121 along its own axial direction, so that it can extend or retract relative to the first limiting groove 1121 under the action of an external force. Each adsorbing 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 adsorbing members 132 contacts the limiting member 131, the adsorbing member 132 adsorbs the limiting member 131 to keep the bracket assembly 120 and the fuselage assembly 110 relatively stable at the current position. More specifically, 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 member 132 passing by, so as to adjust the connection angle between the body assembly 110 and the bracket assembly 120 .

[0063] In this specific embodiment, the adsorption member 132 can be a magnet, and there are two of them, and the stopper 131 is a metal cylindrical pin, so that it can be adsorbed by the magnet. The two adsorption members 132 are respectively arranged at the beginning and end of a rotation stroke of the bracket assembly 120 relative to the body assembly 110, so as to respectively realize the fixing of the bracket assembly 120 relative to the body assembly 110 when it is folded and opened.

[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, so as to control the rotation angle of the bracket assembly 120 and increase the flexibility of use of the folding circulation fan 1000.

[0065] Continue reading Figure 4As shown, further, a first sub-cavity 12111 is provided at one end of the second limiting groove 1211 close to the limiting member 131. The inner wall of the first sub-cavity 12111 increases in size in a direction close to the limiting member 131 to form an inclined surface. The limiting member 131 is inserted into the first sub-cavity 12111 under the action of the corresponding adsorption member 132 and is connected to the adsorption member 132. In addition, the limiting member 131 can also be pressed by the inclined surface to reset when the bracket assembly 120 rotates relative to the fuselage assembly 110.

[0066] Specifically, the adsorbent 132 is fixed in the second limiting groove 1211, and part of its surface is exposed to the first sub-cavity 12111, so that after the limiting member 131 is sucked by the adsorbent 132, it is inserted into the first sub-cavity 12111 and is tightly adsorbed with the adsorbent 132. By changing the inner diameter of the first sub-cavity 12111, a side of the second limiting groove 1211 close to the limiting member 131 forms an inclined surface, so that when the bracket assembly 120 changes its state, it only needs to rotate the bracket assembly 120. Under the pressure of the inclined surface, the limiting member 131 can be separated from the first sub-cavity 12111, separated from the adsorbent 132, and returned to the first limiting groove 1121, which is convenient for the rotation of the bracket assembly 120 to achieve 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 one 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 is a cylindrical structure, the connecting section 1312 is 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, and 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 limiting member 131 is adsorbed by the adsorbing member 132, the connecting section 1312 enters the first sub-cavity 12111 intactly and connects with the adsorbing member 132, which facilitates the connection and cooperation between the limiting member 131 and the adsorbing 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 limiting member 131, which facilitates the separation of the limiting member 131 from the adsorbing member 132.

[0069] In some embodiments, the support assembly 120 includes a rotating frame 121 and a cover plate 122, the second limiting groove 1211 is provided on the rotating frame 121 and also includes a second sub-cavity 12112 communicating with the first sub-cavity 12111, and the cover plate 122 covers the outer side of the rotating frame 121 provided with the second sub-cavity 12112. A plurality of pressing blocks 1221 are provided on one side of the cover plate 122 close to the rotating frame 121, and each pressing block 1221 presses against a correspondingly provided adsorption member 132.

[0070] Specifically, the side of the second sub-cavity 12112 close to the cover plate 122 is an open structure, so that the adsorbent 132 is exposed to the second sub-cavity 12112, which is convenient for installing and replacing the adsorbent 132. The cover plate 122 is detachably covered on the outer side of the rotating frame 121, and the side of the adsorbent 132 away from the limiter 131 is pressed by the pressing block 1221 to prevent the adsorbent 132 from falling. The pressing block 1221 is arranged one by one with the adsorbent 132 to fix each adsorbent 132 respectively.

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

[0072] Specifically, the support rod 111 is vertically arranged, and one end is connected to the ground to support the bracket assembly 120. The protruding frame 112 is fixed to the end of the support rod 111 away from the ground, and protrudes relative to the surface side of the support rod 111. Furthermore, the protruding frame 112 is a tripod structure to improve the connection strength of the protruding frame 112. Through the setting of the protruding frame 112, the bracket assembly 120 is rotatably connected to the protruding frame 112, and the limiter 131 is also set in the protruding frame 112, so as to facilitate the overall rotation of the bracket assembly 120 and avoid the interference of the support rod 111 with the bracket assembly 120 during the rotation process.

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

[0074] Continue reading Fig. 9 As shown, in one embodiment, the connecting member 141 can be a bolt, and the locking member 142 can be a nut accordingly. The rotating frame 121 and the raised frame 112 are both provided with corresponding connecting holes, and 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 also be a pin shaft, and limit holes are provided at both ends, and the locking member 142 may be a cotter pin, so that the cotter pin passes through the limit block of the pin shaft to limit the pin shaft, 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 rotation connection between the rotating frame 121 and the protruding frame 112, and no specific limitation is made 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 respectively installed in a corresponding mounting slot 1122 , and the connecting member 141 passes through each friction plate 150 in sequence.

[0077] Exemplarily, there are two friction plates 150 and two mounting grooves 1122, and the two friction plates 150 are symmetrically arranged on both sides of the rotating frame 121. During the installation process, the connecting member 141 passes through one friction plate 150, the rotating frame 121 and another friction plate 150 in sequence and is fixed to the locking member 142, so that during the rotation of the rotating frame 121, the friction plate 150 will provide friction to the rotating frame 121, offset part of the potential energy of the rotating frame 121 during the rotation process, reduce the rotation speed of the rotating frame 121, and reduce the loss of components. At the same time, in the static state, the friction plate 150 can also cooperate with the limit assembly 130 to supplement the displacement limit of the rotating frame 121, and further ensure the stability of the folding or unfolding state of the bracket assembly 120 and the fuselage assembly 110.

[0078] See also Fig.10 and Fig.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 the occupied space.

[0079] This embodiment has the folding mechanism 100 in any of the above embodiments, and therefore has all the beneficial effects of the folding mechanism 100 in 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 fuselage assembly 110 .

[0081] Specifically, the head assembly 200 may include a fan blade and a drive motor, and when powered on, the drive motor drives the fan blade to rotate to perform heat dissipation. The rotating frame 121 is a Y-shaped structure, and its bottom end is rotatably connected to the fuselage assembly 110. The head assembly 200 is installed between the upper ends of the rotating frame 121 and is rotatably connected to the upper ends of the rotating frame 121, thereby achieving stable installation of the head assembly 200, and 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 shell 113, which covers the raised frame 112 to seal and shield the slot body and components in the raised frame 112, such as the mounting slot 1122, the friction plate 150 installed in the mounting slot 1122, the connecting member 141 and the limiting member 131, etc., to maintain the aesthetic appearance of the folding circulation fan 1000.

[0083] In some embodiments, the support rod 111 includes a plurality of telescopic rods 1111, and each telescopic rod 1111 is slidably connected in sequence. It is understandable that each telescopic rod 1111 is a hollow tube structure with different outer diameters to achieve mutual connection of each telescopic rod 1111. The specific principle is not described in detail here. The operating height adjustment of the folding circulation fan 1000 is achieved by adjusting the telescopic rod 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 rod 1111.

[0084] In summary, the folding mechanism 100 and the folding circulation fan 1000 provided in 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. In 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, so the stability of the whole machine is enhanced.

[0085] 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.

[0086] 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. A folding mechanism, characterized in that: include: fuselage components; A bracket assembly is rotatably connected to the fuselage assembly, and a plurality of fixing areas are formed on one of the fuselage 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, in 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 achieve adjustment of 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, and in 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.

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, and the plurality of second limiting grooves are arranged in sequence along the rotation path of the bracket assembly relative to the fuselage assembly; The limiting assembly further includes a plurality of adsorption members, the limiting members are telescopically arranged in the first limiting grooves, and each of the adsorption members is respectively installed in the corresponding second limiting grooves; When the bracket assembly is rotated relative to the body assembly until one of the adsorbing components contacts the limiting component, the limiting component is adsorbed and extends out of the first limiting groove and is fixed to the adsorbed 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 penetrated into 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 fuselage 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 clamping blocks on a side close to the rotating frame, each of the clamping blocks respectively clamps against the adsorption component in the corresponding second sub-cavity.

6. The folding mechanism according to claim 1, characterized in that: The fuselage assembly comprises a support rod and a protruding frame, the protruding frame is fixed to one side of the support rod, and the bracket assembly is rotatably connected to the protruding 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 also includes a plurality of friction plates, the protruding frame is provided with a plurality of mounting grooves, each of the friction plates is respectively mounted in the corresponding mounting groove, 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 one 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 comprises a plurality of telescopic rods, and each of the telescopic rods is slidably sleeved in sequence.

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