Anti-fall structure and smart home fan

Abstract

The present invention relates to the technical field of anti-falling technology for smart home fans, and specifically to an anti-falling structure and a smart home fan, wherein the anti-falling structure comprises: a pull-out rod, an upper anti-falling rod, an anti-falling rod, a pull-out limiting piece, a driving anti-falling piece and a pop-up traction piece; the beneficial effects are: the pull-out rod inside a storage slot is taken out through a finger groove, the upper anti-falling rod and the connecting end of the anti-falling rod are popped outwards through the pop-up traction piece, the rotating limiting piece and the linking piece cooperate, then the upper anti-falling rod and the anti-falling rod are gradually extended outwards through the connecting rod under the driving of the approach of a movable block, until the extended length of the upper anti-falling rod and the anti-falling rod is greater than the length of the upper fan blades of the smart home fan, and then the pull-out rod is replaced into the storage slot, at this time, multiple groups of extended upper anti-falling rods and anti-falling rods cooperate to support the upper end of the smart home fan when the smart home fan falls, to prevent the upper fan blades and the motor of the smart home fan from being damaged by collision, thereby ensuring the anti-falling protection of the smart home fan.

Description

Technical Field

[0001] The invention relates to the technical field of anti-falling technology for smart home fans, and in particular to an anti-falling structure and a smart home fan. Background Art

[0002] Smart home uses residence as a platform and utilizes integrated wiring technology, network communication technology, security technology, automatic control technology, and audio and video technology to integrate facilities related to home life, build an efficient management system for residential facilities and family schedule affairs, improve home safety, convenience, comfort, and artistry, and achieve an environmentally friendly and energy-saving living environment.

[0003] Existing smart homes include smart home fans.

[0004] The current smart home fans do not have an anti-fall structure, which causes the internal precision parts and smart modules to be easily damaged when the smart home fans are bumped and fall, thus affecting the use of the smart home fans. Summary of the invention

[0005] The purpose of the present invention is to provide an anti-fall structure and a smart home fan to solve the problem of loosening and falling off of vacuum insulation panels.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] An anti-fall structure, comprising:

[0008] The pull-out rod is arranged on the upper surface of the smart home fan and has an "L"-shaped structure;

[0009] The upper anti-fall rod is set on the surface of the smart home fan;

[0010] An anti-fall rod is set on the surface of the smart home fan;

[0011] The pull-out limiting member includes a pull-out member and a limiting pull-out member, and the pull-out member and the limiting pull-out member are both arranged at the upper end of the smart home fan;

[0012] The driving anti-fall component includes a second bevel gear, a first bevel gear matched with the second bevel gear, a first anti-fall rotating shaft connected with the first bevel gear, a movable block sleeved on the surface of the first anti-fall rotating shaft, a rotation limiter and a linkage component, the second bevel gear is arranged on the surface of the pull-out component, the first bevel gear is arranged below the second bevel gear, the first bevel gear is arranged coaxially with the first anti-fall rotating shaft, and the first anti-fall rotating shaft is arranged coaxially with the lower end of the smart home fan, two groups of movable blocks are arranged, and are located at the upper and lower ends of the first anti-fall rotating shaft, the pull-out component drives the second bevel gear and the first bevel gear to rotate, and the rotation limiter cooperates with the linkage component to drive the upper anti-fall rod and the anti-fall rod to extend out of the smart home fan; and

[0013] The pop-up traction member is arranged inside the middle end of the smart home fan and traction-limits the upper anti-fall rod.

[0014] Preferably, multiple groups of the upper anti-fall rods and anti-fall rods are provided, and they are all circumferentially distributed with the axis line of the lower end of the smart home fan as the center. The lengths of the upper anti-fall rods and anti-fall rods are both greater than the length of the upper fan blades of the smart home fan.

[0015] Preferably, a convex block is arranged at the bottom end of the upper anti-fall rod, a groove is arranged at the top end of the anti-fall rod, and the convex block at the bottom end of the upper anti-fall rod is inserted into the groove at the top end of the anti-fall rod. The bottom end of the upper anti-fall rod and the top end of the anti-fall rod are hinged through a movable shaft. An activity groove one is opened on the surface of the bottom end of the anti-fall rod, and an activity groove two is opened on the surface of the top end of the anti-fall rod. Both the activity groove one and the activity groove two are in an arc-shaped structure and are coaxial with the movable shaft.

[0016] Preferably, the pulling member includes an installation anti-loosening block, a pulling groove, a storage groove and a finger groove opened on the surface of the installation anti-loosening block. The storage groove is opened on the surface of the smart home fan, and the depth of the storage groove is equal to the thickness of the pull rod. The finger grooves are opened on the two side surfaces of the storage groove and are in a semi-circular structure. The depth of the finger groove is less than the depth of the storage groove. The installation anti-loosening block is arranged inside the smart home fan, and the second bevel gear is sleeved on the outer surface of the installation anti-loosening block. Both ends of the installation anti-loosening block are rotatably connected to the smart home fan. The pull rod passes through the smart home fan and is inserted into the pulling groove, and the cross-sections of the pull rod and the pulling groove are both in a "mouth" shape structure.

[0017] Preferably, the limiting pulling member includes a pulling limiting block and a pulling limiting groove that cooperates with the pulling limiting block. The pulling limiting groove is opened on the inner surface of the pulling groove. The pulling limiting block is connected to the pull rod, and both the pulling limiting block and the pulling limiting groove are in a cylindrical structure. The pulling limiting block and the pulling limiting groove cooperate to axially limit the pull rod.

[0018] Preferably, the rotation limiting member includes a rotation limiting block, a rotation limiting groove that cooperates with the rotation limiting block and a connecting block. The connecting block is sleeved on the outer surface of the movable block, the rotation limiting block is sleeved on the outer surface of the movable block, the rotation limiting groove is opened on the surface of the connecting block, and the cross-sections of the rotation limiting block and the rotation limiting groove are both in a "T" shape structure. The thickness of the connecting block is less than the thickness of the movable block.

[0019] Preferably, the linkage member includes a linkage fixing groove one, a linkage fixing groove two and a connecting rod. The linkage fixing groove one is opened on the top surface of the upper anti-fall rod, the linkage fixing groove two is opened on the bottom surface of the connecting block, and the cross-sections of the linkage fixing groove one and the connecting rod are both in a "匚" shape structure. Both ends of the connecting rod are hinged to the linkage fixing groove one and the linkage fixing groove two through a rotating shaft respectively. Multiple groups of the linkage fixing groove one, the connecting rod and the linkage fixing groove two are provided and are circumferentially distributed with the axis line of the first anti-fall rotating shaft as the center.

[0020] Preferably, the pop-up traction member includes a winding block, a winding groove opened on the surface of the winding block, a traction rope connected to the winding groove, a supporting spring and a supporting block connected to the supporting spring. The winding block is fixed in the center of the outer surface of the first anti-fall rotating shaft, and multiple groups of winding grooves are provided. The other end of the traction rope is connected to the upper anti-fall rod, and the traction ropes inside the multiple groups of winding grooves are matched with the multiple groups of upper anti-fall rods one by one. The other end of the supporting spring is connected to the smart home fan, and the supporting block is a semicircular structure away from one end of the supporting spring, and the supporting block is located on the inner side of the upper anti-fall rod.

[0021] Preferably, the surface of the first anti-fall shaft is provided with an external thread, and the outer surface of the first anti-fall shaft above the winding block is provided with a left-handed external thread, and the outer surface of the first anti-fall shaft below the winding block is provided with a right-handed external thread, one group of movable blocks is arranged at the upper end of the first anti-fall shaft and the inner wall is provided with a left-handed internal thread, and the other group of movable blocks is arranged at the lower end of the first anti-fall shaft and the inner wall is provided with a right-handed internal thread, and the movable blocks cooperate with the first anti-fall shaft thread.

[0022] A smart home fan comprises the above-mentioned anti-fall structure.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] The present invention takes out the pull-out rod inside the storage groove through the finger groove, and then rotates the pull-out rod, and the pull-out rod cooperates with the pull-out limit piece to drive the second bevel gear to rotate, and the second bevel gear drives the first anti-fall shaft to rotate through the first bevel gear, and the first anti-fall shaft cooperates with the movable block thread, so that the two groups of movable blocks are close to each other at the same time, and the upper anti-fall rod and the anti-fall rod connecting end are popped outward by the pop-out traction piece, and the rotating limit piece and the connecting piece are cooperated, so that the upper anti-fall rod and the anti-fall rod are gradually extended outward through the connecting rod under the driving of the approach of the movable block, until the extended length of the upper anti-fall rod and the anti-fall rod is greater than the length of the upper fan blades of the smart home fan, and then the pull-out rod is replaced into the storage groove. At this time, the multiple groups of extended upper anti-fall rods cooperate with the anti-fall rods to support the upper end of the smart home fan when the smart home fan falls, so as to prevent the upper fan blades and the motor of the smart home fan from being damaged by collision, thereby ensuring the anti-fall protection of the smart home fan. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the main stereoscopic structure of the present invention;

[0026] Figure 2 It is a rear-view stereoscopic structural schematic diagram of the present invention;

[0027] Figure 3 It is a schematic diagram of the three-dimensional structure of the drawer of the present invention;

[0028] Figure 4 It is a schematic diagram of the three-dimensional structure of the rotating anti-fall component of the present invention;

[0029] Figure 5 for Figure 4 A magnified schematic diagram of the structure at position A;

[0030] Figure 6 for Figure 4 A magnified schematic diagram of the structure at B;

[0031] Figure 7 for Figure 4 A magnified schematic diagram of the structure at C;

[0032] Figure 8 It is a schematic diagram of the cross-sectional three-dimensional structure of the rotating anti-fall component of the present invention;

[0033] Fig. 9 for Figure 8 A magnified schematic diagram of the structure at D;

[0034] Fig.10 for Figure 8 A magnified schematic diagram of the structure at E;

[0035] Fig.11 for Figure 8 A magnified schematic diagram of the structure at F;

[0036] Fig.12 It is a top view of the three-dimensional structure of the elastic member of the present invention;

[0037] Fig.13 It is a schematic diagram of the main three-dimensional structure of the elastic member of the present invention.

[0038] In the figure: smart home fan 1, pull-out rod 2, storage slot 3, finger slot 4, installation anti-loosening block 5, first anti-fall rotating shaft 6, upper anti-fall rod 7, anti-fall rod 8, first bevel gear 9, second bevel gear 10, movable block 11, connecting block 12, linkage fixed slot 1 13, connecting rod 14, linkage fixed slot 2 15, rotating shaft 16, movable slot 1 17, movable shaft 18, winding block 19, holding block 20, holding spring 21, traction rope 22, pull-out slot 23, pull-out limit block 24, pull-out limit slot 25, rotation limit block 26, rotation limit slot 27, movable slot 2 28, winding slot 29. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] See also Figures 1 to 13 , the present invention provides a technical solution:

[0041] A fall-proof structure, the fall-proof structure comprises: a pull rod 2, which is arranged on the upper surface of a smart home fan 1 and is in an "L" shape; an upper fall-proof rod 7, which is arranged on the surface of the smart home fan 1; an fall-proof rod 8, which is arranged on the surface of the smart home fan 1; a pull-out limiter, including a pull-out member and a limit pull-out member, both of which are arranged on the upper end of the smart home fan 1; a driving fall-proof member, including a second bevel gear 10, a first bevel gear 9 matched with the second bevel gear 10, a first fall-proof shaft 6 connected to the first bevel gear 9, an active block 11 sleeved on the surface of the first fall-proof shaft 6, a rotation limiter and a linkage member, the second bevel gear 10 is arranged on the surface of the pull-out member, the first bevel gear 9 is arranged below the second bevel gear 10, the first bevel gear 9 is coaxially arranged with the first fall-proof shaft 6, and the first fall-proof shaft 6 is coaxially arranged with the lower end of the smart home fan 1, the active block 11 is provided with two groups, and is located at the upper and lower ends of the first fall-proof shaft 6, the pull-out member The pull member drives the second bevel gear 10 and the first bevel gear 9 to rotate, and the rotation limit member cooperates with the linkage member to drive the upper anti-drop rod 7 and the anti-drop rod 8 to extend out of the smart home fan 1; and the pop-up traction member is arranged inside the middle end of the smart home fan 1, and the upper anti-drop rod 7 is pulled and limited; the upper anti-drop rod 7 and the anti-drop rod 8 are provided with multiple groups, and they are all distributed in a circle with the axis line of the lower end of the smart home fan 1 as the center of the circle, and the length of the upper anti-drop rod 7 and the anti-drop rod 8 are greater than the upper end of the smart home fan 1 Blade length; a protrusion is provided at the bottom end of the upper anti-drop rod 7, a groove is provided at the top end of the anti-drop rod 8, and the protrusion at the bottom end of the upper anti-drop rod 7 is inserted into the groove at the top end of the anti-drop rod 8, and the bottom end of the upper anti-drop rod 7 and the top end of the anti-drop rod 8 are hinged through a movable shaft 18, and a movable groove 1 17 is provided on the bottom end surface of the anti-drop rod 7, and a movable groove 2 28 is provided on the top end surface of the anti-drop rod 8, and both the movable groove 17 and the movable groove 2 28 are arc-shaped structures, and are both coaxially arranged with the movable shaft 18.

[0042] The present invention can be further configured that the pull-out member includes an installation anti-loosening block 5, a pull-out groove 23, a storage groove 3 and a finger groove 4, the storage groove 3 is opened on the surface of the smart home fan 1, and the depth of the storage groove 3 is equal to the thickness of the pull-out rod 2, the finger groove 4 is opened on the two side surfaces of the storage groove 3, and has a semicircular structure, the depth of the finger groove 4 is less than the depth of the storage groove 3, the installation anti-loosening block 5 is arranged inside the smart home fan 1, and the second bevel gear 10 is sleeved on the outer surface of the installation anti-loosening block 5, and both ends of the installation anti-loosening block 5 are connected to the smart home fan The fan 1 is rotatably connected, and the pull-out rod 2 passes through the smart home fan 1 and is inserted into the pull-out groove 23, and the cross-sections of the pull-out rod 2 and the pull-out groove 23 are both in a "mouth" shape; the limiting pull-out member includes a pull-out limit block 24 and a pull-out limit groove 25 that cooperates with the pull-out limit block 24, and the pull-out limit groove 25 is arranged on the inner surface of the pull-out groove 23, the pull-out limit block 24 is connected to the pull-out rod 2, and the pull-out limit block 24 and the pull-out limit groove 25 are both in a cylindrical structure, and the pull-out limit block 24 and the pull-out limit groove 25 cooperate to limit the axial direction of the pull-out rod 2.

[0043] The present invention can be further configured such that the rotation limiting member includes a rotation limiting block 26, a rotation limiting groove 27 that cooperates with the rotation limiting block 26, and a connecting block 12. The connecting block 12 is sleeved on the outer surface of the movable block 11, the rotation limiting block 26 is sleeved on the outer surface of the movable block 11, the rotation limiting groove 27 is formed on the surface of the connecting block 12, and the cross-sections of both the rotation limiting block 26 and the rotation limiting groove 27 are in a "T" shape. The thickness of the connecting block 12 is less than the thickness of the movable block 11. The linkage member includes a first linkage fixing groove 13, a second linkage fixing groove 15, and a connecting rod 14. The first linkage fixing groove 13 is formed on the top surface of the upper anti-fall rod 7, the second linkage fixing groove 15 is formed on the bottom surface of the connecting block 12, and the cross-sections of both the first linkage fixing groove 13 and the connecting rod 14 are in a "匚" shape. Both ends of the connecting rod 14 are hinged to the first linkage fixing groove 13 and the second linkage fixing groove 15 respectively through a rotating shaft 16. The first linkage fixing groove 13, the connecting rod 14, and the second linkage fixing groove 15 are all provided in multiple groups and are distributed in a circular pattern with the axis of the first anti-fall rotating shaft 6 as the center.

[0044] The present invention can be further configured such that the pop-up traction member includes a winding block 19, a winding groove 29 formed on the surface of the winding block 19, a traction rope 22 connected to the winding groove 29, a holding spring 21, and a holding block 20 connected to the holding spring 21. The winding block 19 is fixed in the middle on the outer surface of the first anti-fall rotating shaft 6. The winding groove 29 is provided in multiple groups. The other end of the traction rope 22 is connected to the upper anti-fall rod 7, and the traction ropes 22 inside the multiple groups of winding grooves 29 are in one-to-one correspondence with the multiple groups of upper anti-fall rods 7. The other end of the holding spring 21 is connected to the smart home fan 1. One end of the holding block 20 away from the holding spring 21 is in a semi-circular shape, and the holding block 20 is located inside the upper anti-fall rod 7.

[0045] The present invention can be further configured such that the surface of the first anti-fall rotating shaft 6 is provided with an external thread, and the outer surface of the first anti-fall rotating shaft 6 above the winding block 19 is provided with a left-handed external thread, and the outer surface of the first anti-fall rotating shaft 6 below the winding block 19 is provided with a right-handed external thread. One set of movable blocks 11 is arranged at the upper end of the first anti-fall rotating shaft 6 and the inner wall is provided with a left-handed internal thread, and the other set of movable blocks 11 is arranged at the lower end of the first anti-fall rotating shaft 6 and the inner wall is provided with a right-handed internal thread. The movable block 11 is in threaded engagement with the first anti-fall rotating shaft 6.

[0046] A smart home fan includes the above-mentioned anti-fall structure.

[0047] When anti-fall is needed, the pull-out rod 2 inside the storage slot 3 is taken out through the finger groove 4, and then the pull-out rod 2 is rotated. The pull-out rod 2 drives the installation anti-loosening block 5 to rotate by cooperating with the pull-out limit block 24, thereby driving the second bevel gear 10 to rotate. The second bevel gear 10 drives the first anti-fall rotating shaft 6 to rotate through the first bevel gear 9. The first anti-fall rotating shaft 6 is threadedly matched with the movable block 11, so that the two groups of movable blocks 11 are close to each other at the same time, thereby driving the connecting block 12 to be close to each other at the same time, and the supporting spring 21 supports the supporting block 20 to push the connecting end of the upper anti-fall rod 7 and the anti-fall rod 8 toward When the fan 1 is moved outwards, the upper anti-fall rod 7 and the anti-fall rod 8 are gradually extended outwards through the connecting rod 14 under the driving force of the moving block 11, until the extended length of the upper anti-fall rod 7 and the anti-fall rod 8 is greater than the length of the upper fan blades of the smart home fan 1, and then the pull-out rod 2 is replaced into the storage slot 3. At this time, the multiple groups of extended upper anti-fall rods 7 and anti-fall rods 8 cooperate to support the upper end of the smart home fan 1 when the smart home fan 1 falls, so as to prevent the upper fan blades and the motor of the smart home fan 1 from being damaged by collision, thereby ensuring the anti-fall protection of the smart home fan 1.

[0048] On the contrary, by rotating the pull rod 2, the two groups of movable blocks 11 are driven away at the same time, and the rotating winding block 19 winds up the traction rope 22, which is convenient for storing the upper anti-fall rod 7 and the anti-fall rod 8, so that the upper anti-fall rod 7 and the anti-fall rod 8 are completely stored inside the smart home fan 1.

[0049] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An anti-fall structure, characterized in that: The anti-fall structure comprises: A pull-out rod (2) is arranged on the upper surface of the smart home fan (1) and has an "L"-shaped structure; An upper anti-fall rod (7) is arranged on the surface of the smart home fan (1); An anti-fall rod (8) is arranged on the surface of the smart home fan (1); A pull-out limiting member, comprising a pull-out member and a limiting pull-out member, wherein the pull-out member and the limiting pull-out member are both arranged at the upper end of the smart home fan (1); The driving anti-fall component comprises a second bevel tooth (10), a first bevel tooth (9) matched with the second bevel tooth (10), a first anti-fall rotating shaft (6) connected with the first bevel tooth (9), a movable block (11) sleeved on the surface of the first anti-fall rotating shaft (6), a rotation limiter and a linkage component, wherein the second bevel tooth (10) is arranged on the surface of the drawer, the first bevel tooth (9) is arranged below the second bevel tooth (10), the first bevel tooth (9) and the first anti-fall rotating shaft (6) are arranged coaxially, and the first anti-fall rotating shaft (6) and the lower end of the smart home fan (1) are arranged coaxially, two groups of movable blocks (11) are arranged and are located at the upper and lower ends of the first anti-fall rotating shaft (6), the drawer drives the second bevel tooth (10) and the first bevel tooth (9) to rotate, and the rotation limiter cooperates with the linkage component to drive the upper anti-fall rod (7) and the anti-fall rod (8) to extend out of the smart home fan (1); and A pop-up traction member is arranged inside the middle end of the smart home fan (1) and is traction-limited to the upper anti-fall rod (7); The limit pull-out member comprises a limit pull-out block (24) and a limit pull-out groove (25) matched with the limit pull-out block (24); the limit pull-out groove (25) is arranged on the inner surface of the limit pull-out groove (23); the limit pull-out block (24) is connected to the pull-out rod (2); the limit pull-out block (24) and the limit pull-out groove (25) are both cylindrical structures; and the limit pull-out block (24) and the limit pull-out groove (25) match to axially limit the pull-out rod (2); The rotation limiting member comprises a rotation limiting block (26), a rotation limiting groove (27) matched with the rotation limiting block (26), and a connecting block (12); the connecting block (12) is sleeved on the outer surface of the movable block (11); the rotation limiting block (26) is sleeved on the outer surface of the movable block (11); the rotation limiting groove (27) is arranged on the surface of the connecting block (12); the cross sections of the rotation limiting block (26) and the rotation limiting groove (27) are both in a "T"-shaped structure; the thickness of the connecting block (12) is less than the thickness of the movable block (11).

2. The anti-fall structure according to claim 1, characterized in that: The upper anti-fall rods (7) and the anti-fall rods (8) are provided in multiple groups and are all distributed in a circle with the axis of the lower end of the smart home fan (1) as the center of the circle. The lengths of the upper anti-fall rods (7) and the anti-fall rods (8) are both greater than the lengths of the upper blades of the smart home fan (1).

3. The anti-fall structure according to claim 2, characterized in that: The bottom end of the upper anti-fall rod (7) is provided with a convex block, the top end of the anti-fall rod (8) is provided with a groove, and the convex block at the bottom end of the upper anti-fall rod (7) is inserted into the groove at the top end of the anti-fall rod (8). The bottom end of the upper anti-fall rod (7) and the top end of the anti-fall rod (8) are hinged by a movable shaft (18). A first movable groove (17) is formed on the surface of the bottom end of the anti-fall rod (7), and a second movable groove (28) is formed on the surface of the top end of the anti-fall rod (8). Both the first movable groove (17) and the second movable groove (28) are arc-shaped structures and are coaxially arranged with the movable shaft (18).

4. The anti-fall structure according to claim 3, characterized in that: The pulling member includes an anti-loosening mounting block (5), a pulling groove (23) formed on the surface of the anti-loosening mounting block (5), a storage groove (3), and a finger groove (4). The storage groove (3) is formed on the surface of the smart home fan (1), and the depth of the storage groove (3) is equal to the thickness of the pull rod (2). The finger grooves (4) are formed on both side surfaces of the storage groove (3) and are semi-circular structures. The depth of the finger grooves (4) is less than the depth of the storage groove (3). The anti-loosening mounting block (5) is arranged inside the smart home fan (1), and the second bevel gear (10) is sleeved on the outer surface of the anti-loosening mounting block (5). Both ends of the anti-loosening mounting block (5) are rotatably connected to the smart home fan (1). The pull rod (2) passes through the smart home fan (1) and is inserted into the pulling groove (23). The cross-sections of the pull rod (2) and the pulling groove (23) are both "mouth"-shaped structures.

5. The anti-fall structure according to claim 4, characterized in that: The linkage member includes a first linkage fixing groove (13), a second linkage fixing groove (15), and a connecting rod (14). The first linkage fixing groove (13) is formed on the surface of the top end of the upper anti-fall rod (7), and the second linkage fixing groove (15) is formed on the surface of the bottom end of the connecting block (12). The cross-sections of the first linkage fixing groove (13) and the connecting rod (14) are both "C"-shaped structures. Both ends of the connecting rod (14) are hinged to the first linkage fixing groove (13) and the second linkage fixing groove (15) respectively by a rotating shaft (16). The first linkage fixing groove (13), the connecting rod (14), and the second linkage fixing groove (15) are all provided in multiple groups and are distributed in a circular pattern with the axis of the first anti-fall rotating shaft (6) as the center.

6. The anti-fall structure according to claim 5, characterized in that: The pop-up traction member includes a winding block (19), a winding groove (29) formed on the surface of the winding block (19), a traction rope (22) connected to the winding groove (29), a holding spring (21), and a holding block (20) connected to the holding spring (21). The winding block (19) is fixed in the middle on the outer surface of the first anti-fall rotating shaft (6). The winding groove (29) is provided in multiple groups. The other end of the traction rope (22) is connected to the upper anti-fall rod (7). The traction ropes (22) in the multiple groups of winding grooves (29) are in one-to-one cooperation with the multiple groups of upper anti-fall rods (7). The other end of the holding spring (21) is connected to the smart home fan (1). One end of the holding block (20) away from the holding spring (21) is a semi-circular structure, and the holding block (20) is located inside the upper anti-fall rod (7).

7. The anti-fall structure according to claim 6, characterized in that: The surface of the first anti-fall rotating shaft (6) is provided with an external thread, and the external surface of the first anti-fall rotating shaft (6) above the winding block (19) is provided with a left-handed external thread, and the external surface of the first anti-fall rotating shaft (6) below the winding block (19) is provided with a right-handed external thread. A group of movable blocks (11) is arranged at the upper end of the first anti-fall rotating shaft (6) and the inner wall is provided with a left-handed internal thread, and another group of movable blocks (11) is arranged at the lower end of the first anti-fall rotating shaft (6) and the inner wall is provided with a right-handed internal thread. The movable blocks (11) are threadedly matched with the first anti-fall rotating shaft (6).

8. A smart home fan, characterized in that: The invention comprises the anti-fall structure as described in any one of claims 1 to 7.

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