Foldable supporting device and artificial tree

Abstract

The embodiment of the invention provides a foldable supporting device and an artificial tree. The supporting device comprises a supporting base, a supporting foot assembly and an opening and closing mechanism. The supporting seat is provided with a containing cavity and a mounting part used for mounting a supported object, the containing cavity extends in the direction parallel to the first direction, and a pivoting part is arranged on the outer side face of the supporting seat. The supporting leg assembly is pivotally connected with the pivoting part and has an unfolding position and a folding position. The opening and closing mechanism is in driving connection with the supporting leg assembly, and the opening and closing mechanism is at least partially contained in the containing cavity and can move in the first direction. Wherein the opening and closing mechanism can be switched between a first state and a second state so as to drive the supporting leg assembly to be switched between an unfolding position and a folding position, when the opening and closing mechanism is in the first state, the supporting leg assembly is kept at the unfolding position, and when the opening and closing mechanism is in the second state, the supporting leg assembly is kept at the folding position.

Description

Technical Field

[0001] The present application relates to the technical field of supporting device structures, and in particular to an artificial tree and a foldable supporting device thereof. Background Art

[0002] As a supporting structure used in conjunction with a column, the support device is widely used in industrial production and daily life. The existing support device is usually a radial fixed structure, which makes the support device very large during storage or transportation, which is inconvenient to carry and transport, and is easy to be damaged. Summary of the invention

[0003] Based on this, it is necessary to provide a foldable supporting device and an artificial tree having the supporting device to address the above technical problems.

[0004] According to one aspect of the present application, a foldable support device is provided, which includes a support base, a support leg assembly and an opening and closing mechanism.

[0005] The support seat is provided with a receiving cavity and a mounting portion for mounting a supported object, the receiving cavity extends in a direction parallel to the first direction, and a pivoting portion is provided on an outer side surface of the support seat.

[0006] The leg assembly is pivotally connected to the pivot portion and has an unfolded position and a folded position.

[0007] The opening and closing mechanism is drivingly connected to the leg assembly. The opening and closing mechanism is at least partially accommodated in the accommodating cavity and can move along a first direction.

[0008] Among them, the opening and closing mechanism can switch between a first state and a second state to drive the leg assembly to switch between an extended position and a folded position. When the opening and closing mechanism is in the first state, the leg assembly is maintained in the extended position, and when the opening and closing mechanism is in the second state, the leg assembly is maintained in the folded position.

[0009] Furthermore, the support seat is provided with a snap-fitting hole, which passes through the side wall of the accommodating cavity, and the opening and closing mechanism includes: a movable seat, a first locking member and a second locking member.

[0010] The movable seat is drivingly connected to the support leg assembly. The movable seat is movably arranged in the accommodating cavity and has a first position and a second position.

[0011] The first locking member has a first locking end, which is movably disposed on the movable seat and has a first locking position allowing the first locking end to engage with the engaging hole and a first unlocking position allowing the first engaging end to exit the engaging hole to release the engagement.

[0012] The second locking member has a second engaging end, which is movably disposed on the movable seat and has a second locking position allowing the second engaging end to engage with the engaging hole and a second unlocking position allowing the second engaging end to exit the engaging hole to release the engagement.

[0013] When the movable seat is in the first position, the opening and closing mechanism is in the first state, and the first locking member is in the first locking position to allow the leg assembly to remain in the extended position; when the movable seat is in the second position, the opening and closing mechanism is in the second state, and the second locking member is in the second locking position to allow the leg assembly to remain in the folded position.

[0014] Furthermore, the movable seat is provided with a first accommodating cavity, the first accommodating cavity has a first opening end, the first opening end is provided with a first cover body, the first cover body at least partially closes the first opening end, and the opening and closing mechanism also includes a driving member.

[0015] The driving member is at least partially accommodated in the first accommodating cavity and can move relative to the moving seat along a direction parallel to the first direction. The driving member has a first driving position and a second driving position.

[0016] Among them, when the driving member is in the first driving position, the first engaging end of the first locking member can engage with the engaging hole, so that the movable seat is maintained in the first position, thereby keeping the support leg assembly in the expanded position; when the driving member is in the second driving position, the driving member can drive the movable seat from the second position to the first position through the first locking member, and can drive the movable seat from the first position to the second position by pushing the first cover body.

[0017] Further, the movable seat is provided with a first through hole, the first through hole passes through the side wall of the first accommodating cavity, the first locking member is provided in the first through hole and can move relative to the movable seat in a direction parallel to the second direction, wherein the second direction is not parallel to the first direction,

[0018] One of the first locking member and the driving member is provided with a first driving inclined surface, and the other of the first locking member and the driving member is provided with a second driving inclined surface, the second driving inclined surface abuts against the first driving inclined surface and can slide relative to the first driving inclined surface to allow the first locking member to move between a first locking position and a first releasing position along a second direction relative to the moving seat when the driving member moves along a first direction relative to the moving seat.

[0019] Furthermore, a driving protrusion is provided on one of an end of the first locking member away from the first engaging end and a side surface of the driving member, and the side surface of the driving protrusion forms a first driving inclined surface;

[0020] A driving recess is provided on the other of one end of the first locking member away from the first engaging end and the side surface of the driving member, the extension direction of the driving recess is not parallel to the first direction and the second direction, and the bottom wall of the driving recess forms a second driving inclined surface;

[0021] The driving protrusion is clamped on the driving concave portion and can move along the extending direction of the driving concave portion.

[0022] Furthermore, the first locking member includes a pin-shaped first bayonet portion, one end of which forms a first engaging end, and a first limiting protrusion is provided on the outer side surface of the first bayonet portion, and the first limiting protrusion can abut against the end surface of the first outlet hole to at least partially limit the first locking member in the first accommodating cavity.

[0023] Further, the driving member includes a driving body and a limiting boss, the driving body has a first end and a second end and gradually becomes smaller from the first end to the second end, the limiting boss is arranged at the first end of the driving body, and the driving member is movable between a first driving position and a second driving position relative to the moving seat.

[0024] When the movable seat is located in the first driving position, one end of the first locking member away from the first locking end abuts against the side of the first end, and the side of the first locking member can be stopped by the limiting boss; when the movable seat is located in the second driving position, one end of the first locking member away from the first locking end abuts against the side of the second end, and the first end abuts against the first cover body.

[0025] Furthermore, the opening and closing mechanism also includes:

[0026] The first restoring member is disposed between the first locking member and the movable seat 43 , and is adapted to bias the first locking member to move the first locking member toward the first unlocking position.

[0027] Further, the first locking member includes a first bayonet portion and an abutment portion, one end of the first bayonet portion forms a first engaging end, and the abutment portion is connected to an outer side surface of the first bayonet portion.

[0028] The movable seat is provided with a first through hole and a limiting recess, the first through hole passes through the side wall of the first accommodating cavity, the limiting recess is adjacent to the first through hole and is located in the first accommodating cavity, the first bayonet portion is inserted in the first through hole, and the abutting portion is at least partially accommodated in the limiting recess,

[0029] One end of the first restoring member abuts against the bottom wall of the limiting recess, and the other end of the first restoring member abuts against the abutting portion.

[0030] Furthermore, the opening and closing mechanism also includes: an operating member.

[0031] The operating member is operably arranged on the movable seat and is detachably connected to the driving member through the first connecting member.

[0032] Furthermore, the first cover body is provided with a connecting through hole and a penetration recess, the operating member has an operating portion, the operating portion is located outside the first accommodating cavity, and at least a portion of the operating member can extend into the first accommodating cavity through the penetration recess.

[0033] One end of the first connecting member is detachably connected to the operating member, and the other end of the first connecting member passes through the connecting through hole and is detachably connected to the driving member.

[0034] Furthermore, the operating member is provided with a pad, and the pad is provided on the operating portion.

[0035] Furthermore, the opening and closing mechanism also includes a driving reset member, which is arranged between the first cover body and the driving member to bias the driving member to move the driving member to the first driving position.

[0036] Furthermore, a limiting groove is arranged at one end of the driving member facing the first cover body, a limiting convex column is arranged in the limiting groove, the first cover body has a boss portion, and the boss portion is provided with a limiting groove.

[0037] One end of the driving reset member is sleeved on the limiting convex column, and the other end of the driving reset member is inserted into the limiting groove.

[0038] Furthermore, the driving member is provided with a guide hole, the extension direction of the guide hole is parallel to the first direction, the movable seat is provided with a guide member, the guide member extends in parallel to the first direction, the guide member is inserted into the guide hole and can move along the guide hole.

[0039] Furthermore, the mobile seat includes: a first seat body and a second seat body.

[0040] The first seat body is provided with a first accommodating cavity, and the first locking piece is movably provided on the first seat body.

[0041] The second base body is detachably connected to the first base body. The second base body is provided with a second accommodating cavity which is communicated with the first accommodating cavity. The second locking member is movably arranged on the second base body.

[0042] Furthermore, the second base body is provided with a receiving groove and a second through hole, the second through hole penetrates the side wall of the receiving groove, the opening end of the receiving groove is provided with a second cover body, and the second cover body is detachably connected to the second base body.

[0043] The second locking member is movably disposed in the receiving groove, and the second engaging end can at least partially pass through the second through hole and extend out of the receiving groove, so as to allow the second engaging end to engage with the engaging hole.

[0044] Furthermore, the second locking member includes a second bayonet portion and a second limiting protrusion, the second bayonet portion is pin-shaped, one end of the second bayonet portion forms a second engaging end, and the second limiting protrusion is arranged on the outer side surface of the second bayonet portion.

[0045] The second limiting protrusion can be stopped by the end surface of the second through hole to limit the second locking member at least partially in the accommodating groove.

[0046] Furthermore, a connecting protrusion is provided in the receiving groove, and the opening and closing mechanism further comprises:

[0047] The second restoring member is arranged between the second locking member and the connecting protrusion, and the second restoring member is suitable for biasing the second locking member to move the second locking member to the second locking position.

[0048] Furthermore, the opening and closing mechanism comprises:

[0049] The movable seat is at least partially accommodated in the accommodating cavity and can move relative to the supporting seat in a direction parallel to the first direction. The movable seat is provided with a plurality of first meshing teeth.

[0050] The support leg assembly is provided with a plurality of second meshing teeth, and the support seat is provided with a meshing hole, which penetrates the side wall of the accommodating cavity.

[0051] When the moving seat moves relative to the supporting seat in a direction parallel to the first direction, the first engaging teeth of the supporting leg can engage with the second engaging teeth through the engaging holes to drive the supporting leg assembly to pivot between the extended position and the retracted position.

[0052] Furthermore, a plurality of first meshing teeth are distributed on the outer side surface of the moving seat along a direction parallel to the first direction.

[0053] Furthermore, the support leg assembly includes: a gear plate and a support leg body.

[0054] The gear plate is provided with a plurality of second meshing teeth and is pivotally connected with the pivoting portion, and the plurality of second meshing teeth mesh with the plurality of first meshing teeth.

[0055] The support leg body is connected with the gear plate.

[0056] Furthermore, the pivotal portion is provided with a containing groove, the containing groove is communicated with the meshing hole, at least a portion of the gear plate is accommodated in the containing groove and is pivotally connected to the pivotal portion.

[0057] Furthermore, the pivoting portion is provided with a decorative piece.

[0058] One of the decorative piece and the supporting foot body is provided with a snap-fitting protrusion, and the other of the decorative piece and the supporting foot body is provided with a snap-fitting recess. When the supporting foot assembly is in the folded position, the snap-fitting protrusion is snap-fitted with the snap-fitting recess.

[0059] Further, the pivoting portion is provided with a first pivot limiting portion, and when the leg assembly is located at the unfolded position, at least a portion of the leg assembly abuts against the first pivot limiting portion.

[0060] The decorative element is provided with a second pivot limiting portion. When the support leg assembly is located at the folded position, at least a portion of the support leg assembly abuts against the second pivot limiting portion.

[0061] Furthermore, the support leg assembly also includes a foot pad having a support surface, and the foot pad is detachably arranged on an end of the support leg body away from the gear plate.

[0062] Furthermore, the number of the support leg assemblies is at least two, the support base is provided with at least two pivoting parts, and the at least two support leg assemblies are pivotally connected to the at least two pivoting parts respectively.

[0063] According to another aspect of the present application, an artificial tree is provided, which comprises a tree body and a supporting device in any one of the above embodiments, wherein the tree body serves as a supported object and is installed on a mounting portion.

[0064] According to the support device provided by the embodiment of the present application and the artificial tree equipped with the support device, the opening and closing mechanism is movably arranged on the support seat and is drivingly connected to the leg assembly, so that when the opening and closing mechanism moves relative to the support seat, it can switch between the first state and the second state, thereby driving the leg assembly to pivot between the deployed position and the folded position. Further, when the opening and closing mechanism is in the first state, the leg assembly is maintained in the deployed position, so that the leg assembly can be firmly supported on the ground or the table. When the opening and closing mechanism is in the second state, the leg assembly is maintained in the folded position, reducing the space occupied by the support device, so as to facilitate the storage or transportation of the support device. The support device can be easily deployed and folded to meet the use requirements of the support device in different scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0065] The drawings constituting a part of the present application are used to provide a further understanding of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application.

[0066] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments 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 creative work.

[0067] In addition, the drawings are not drawn to a 1:1 scale, and the relative sizes of the various elements are drawn only as examples in the drawings and are not necessarily drawn according to the true scale.

[0068] Figure 1 A schematic structural diagram of a foldable support device according to some embodiments of the present application is shown, wherein the support device is in an unfolded state;

[0069] Figure 2 Show Figure 1 A schematic diagram of the structure when the supporting device is in a folded state;

[0070] Figure 3 Show Figure 1 An exploded view of the support device in FIG.

[0071] Figure 4 Show Figure 1 A cross-sectional view of the support device in which the leg assembly is in the deployed position, the drive member is in the first drive position, and the first locking member is in the locked position;

[0072] Figure 5 Show Figure 4 The enlarged view of point A in the middle;

[0073] Figure 6 Show Figure 1 A cross-sectional view of the support device in which the leg assembly is in the deployed position, the drive member is in the second drive position, and the first locking member is in the unlocked position;

[0074] Figure 7 Show Figure 6 The enlarged view of point B in the middle;

[0075] Figure 8 Show Figure 1 A cross-sectional view of the support device in which the leg assembly is in a folded position, the drive member is in a second drive position, and the first locking member is in a released position;

[0076] Fig. 9 Show Figure 8 Enlarged view of point C in the middle;

[0077] Fig.10 A schematic diagram showing the structure of an opening and closing mechanism according to some embodiments of the present application is shown;

[0078] Fig.11 Show Fig.10 A top view of the opening and closing mechanism in FIG.

[0079] Fig.12 Show Fig.11 Sectional view at U1-U1;

[0080] Fig.13 Show Fig.11 Sectional view at U2-U2;

[0081] Fig.14 Show Fig.11 Exploded view of the middle opening and closing mechanism;

[0082] Fig.15 Show Fig.11A schematic structural diagram of the second seat body of the middle opening and closing mechanism;

[0083] Fig.16 Show Fig.11 A schematic structural diagram of the second cover body of the middle opening and closing mechanism;

[0084] Fig.17 Show Fig.11 A schematic structural diagram of a first locking member of the middle opening and closing mechanism; and

[0085] Fig.18 Show Fig.11 Schematic diagram of the structure of the driving component of the middle opening and closing mechanism.

[0086] Marking Description

[0087] 100. Support device,

[0088] 1. Support seat, 11. First column, 11a. Column body, 11b. Insertion portion, 111. Accommodation cavity, 112. Engagement hole, 113. Engagement hole, 12. Second column, 121. Mounting portion, 122. Connecting portion, 13. Pivot portion, 131. Retaining groove, 132. First pivot limit portion, 14. Decorative member, 141. Engagement protrusion, 142. Second pivot limit portion,

[0089] 3. Support foot assembly, 31. Support foot body, 311. Side plate, 312. Connecting plate, 313. Engaging recess, 32. Gear plate, 321. Second meshing teeth, 33. Foot pad, 331. Support surface, 34a. First connecting pin, 34b. Second connecting pin,

[0090] 4. Opening and closing mechanism,

[0091] 41. a first locking member, 411. a first latch portion, 4111. a first engaging end, 412. a driving protrusion, 4121. a first driving inclined surface, 413. a first limiting protrusion, 414. abutting portion, 415. a first abutting boss,

[0092] 42, second locking member, 421, second bayonet portion, 4211, second engaging end, 422, second limiting convex portion, 423, abutting concave portion,

[0093] 43. Moving seat, 4301. First meshing tooth, 4302. Position limiting recess, 4303. Guide member,

[0094] 431, first seat body, 4311, first accommodating cavity, 4312, first through hole, 4313, first limiting portion, 4314, second opening end, 4315, first opening end,

[0095] 432, second seat body, 4321, receiving groove, 4322, second through hole, 4323, connecting protrusion, 4324, second receiving cavity, 4325, second limiting portion, 4326, threaded hole, 4327, second abutting boss,

[0096] 433, first cover body, 4331, boss portion, 4332, limiting groove, 4333, connecting through hole, 4334, penetrating recess,

[0097] 434, a second cover body, 4341, a cover part, 4342, a cover body connecting part,

[0098] 44. driving member, 441. driving body, 4411. first end, 4412. second end, 4413. driving recess, 4414. second driving inclined surface, 442. limiting boss, 443. limiting groove, 444. limiting boss, 445. guide hole, 446. plug-in recess,

[0099] 45. operating member, 451. operating portion, 452. operating connection portion,

[0100] 46, gasket, 47a, first reset member, 47b, second reset member, 47c, drive reset member, 49, first connecting member, D1, first direction, D2, second direction, DETAILED DESCRIPTION

[0101] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present invention are shown in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0102] It should be noted that when an element is considered to be "connected" to another element, it may be directly connected to another element and integrated therewith, or there may be an intermediate element at the same time. The terms "installed", "one end", "the other end" and similar expressions used herein are for illustrative purposes only.

[0103] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0104] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0105] Figure 1 to Figure 2 A schematic structural diagram of a foldable support device 100 provided according to some embodiments of the present application is shown. The support device 100 can switch between an expanded state and a folded state. When the support device 100 is in the expanded state, the support device 100 can be used to support supported objects such as artificial trees and billboards, so that the supported objects can be stably placed on the ground or a table. When the support device 100 is in the folded state, the space occupied by the support device 100 is minimal, so that transportation and storage can be convenient. According to some embodiments of the present application, an artificial tree is also provided, which includes a tree body (not shown) and a support device 100. Among them, the tree body is detachably mounted on the support device 100. The following describes the artificial tree while describing the support device 100.

[0106] like Figures 1 to 4 As shown, in some embodiments, the support device 100 includes a support base 1, a leg assembly 3 and an opening and closing mechanism 4. The leg assembly 3 is pivotally connected to the support base 1 and has an extended position and a retracted position. When the leg assembly 3 is in the extended position, the support device 100 is in an extended state, the angle between the leg assembly 3 and the support base 1 is the largest, and the overall width of the support device 100 is larger (i.e., the lateral occupied space is larger), so that the support device 100 can be stably supported, and then the artificial tree can be stably supported on the ground or table to avoid tipping and the like. When the leg assembly 3 is in the retracted position, the support device 100 is in a retracted state, the angle between the leg assembly 3 and the support base 1 is the smallest, and the overall width of the support device 100 is smaller (i.e., the lateral occupied space is smaller). Therefore, when transporting or storing the support device 100, a large amount of transportation or storage space can be saved, which is convenient for transport and storage. The opening and closing mechanism 4 is operably arranged on the support base 1 and is drivingly connected to the leg assembly 3, so as to allow the leg assembly 3 to switch between the deployed position and the folded position by operating the opening and closing mechanism 4. Further, the opening and closing mechanism 4 is movably arranged on the support base 1. And it can switch between a first state and a second state to drive the leg assembly 3 to switch between the deployed position and the folded position. When the opening and closing mechanism is in the first state, the leg assembly 3 is maintained in the deployed position, and the support device 100 is maintained in the deployed state; when the opening and closing mechanism is in the second state, the leg assembly 3 is maintained in the folded position, and the support device 100 is maintained in the folded state.

[0107] like Figures 4 to 9As shown, the support base 1 is provided with a receiving cavity 111, a pivoting portion 13 and a mounting portion 121 for mounting a supported object. The tree body (not shown) serves as a supported object and can be mounted on the mounting portion 121. The support base 1 is provided with a pivoting portion 13, and the pivoting portion 13 is used to be pivotally connected with the support leg assembly 3. The receiving cavity 111 extends in a direction parallel to the first direction D1, that is, extends in the longitudinal direction of the support base 1. The opening and closing mechanism 4 is at least partially accommodated in the receiving cavity 111 and can move in the extension direction of the receiving cavity 111.

[0108] like Figures 1 to 4 As shown, in some embodiments, the outer contour of the support seat 1 is roughly cylindrical. The support seat 1 includes a first column 11 with a hollow inner cavity and a second column 12 with a hollow inner cavity. The first column 11 and the second column 12 are plugged together. Specifically, the first column 11 includes a column body 11a and a plug-in portion 11b provided at one end of the column body 11a, and a connecting portion 122 is provided in the hollow inner cavity of the second column 12. The plug-in portion 11b is plugged into the hollow inner cavity of the second column 12 and connected to the connecting portion 122. More specifically, the plug-in portion 11b abuts against the connecting portion 122, and the end face of the second column 12 abuts against the column body 11a. In this embodiment, as shown in FIG. Figure 4 As shown, the hollow inner cavity of the column body 11a of the first column 11 forms a receiving cavity 111, the plug-in portion 11b at least partially forms the top wall of the receiving cavity 111, and the end of the receiving cavity 111 opposite to the top wall is an open end, and the opening and closing mechanism 4 can be installed in the receiving cavity 111 of the first column 11 through the open end. The hollow inner cavity of the second column 12 forms a mounting portion 121, and the mounting portion 121 is, for example, a hole for plugging in a supported object, and the connecting portion 122 at least partially forms the bottom wall of the hole. In other embodiments, the mounting portion 121 can be a connecting thread provided on the second column 12, and the supported object can be detachably connected to the second column 12, for example, by a threaded connection, which is not limited in this application.

[0109] Furthermore, the pivoting portion 13 is disposed on the outer side of the first column 11. The pivoting portion 13 may be formed as an integral component with the first column 11, or may be fixedly connected to the first column 11 by, for example, bonding, riveting, etc., or may be detachably connected to the first column 11 by means of a clamping, a bolt connection, etc., which is not limited in the present application. Figure 3 and Figure 4The pivoting portion 13 is provided with a containing groove 131, and the containing groove 131 is used to at least partially accommodate the support leg assembly 3. The first column 11 of the support seat 1 is provided with an engaging hole 113, and the engaging hole 113 passes through the side wall of the accommodating cavity 111. The containing groove 131 is connected with the accommodating cavity 111 through the engaging hole 113 to allow the support assembly 3 to be driven and connected with the opening and closing mechanism 4 accommodated in the accommodating cavity 111. The pivoting portion 13 is also provided with a first pivot limiting portion 132, and the first pivot limiting portion 132 is used to limit the pivot range of the support leg assembly 3 relative to the pivoting portion 13. Specifically, the first pivot limiting portion 132 can limit the maximum angle between the support leg assembly 3 and the first column 11 (i.e., the support seat 1).

[0110] Continue to refer to Figures 1 to 4 The support seat 1 is also provided with a decorative piece 14, and the decorative piece 14 is detachably connected to the pivot portion 13. The decorative piece 14 is covered outside the pivot portion 13, so that the appearance of the support device 100 is more beautiful. The decorative piece 14 is provided with a second pivot limit portion 142, and the second pivot limit portion 142 is used to limit the pivot range of the support leg assembly 3 relative to the pivot portion 13. Specifically, the second pivot limit portion 14 can limit the small angle between the support leg assembly 3 and the first column 11 (that is, the support seat 1). Of course, in some other embodiments, the decorative piece 14 may not be provided, and this application does not limit this.

[0111] like Figures 1 to 4 As shown, in some embodiments, the support device 100 is configured with at least two support leg assemblies 3. The support base 1 is provided with at least two pivoting portions 13, and the at least two support leg assemblies 3 are pivotally connected to the at least two pivoting portions 13, respectively. In this embodiment, the number of the support leg assemblies 3 is four, and the support base 1 is correspondingly provided with four pivoting portions 13, and the four pivoting portions 13 are circumferentially spaced and evenly arranged around the outer surface of the support base 1 to improve the stability when supported on the ground (or table top). Of course, in some other embodiments not shown, the number of the support leg assemblies 3 and the pivoting portions 13 can also be set to be greater than four or less than four according to actual needs, and this application is not limited to this. For the convenience of description, one of the support leg assemblies 3 is taken as an example for explanation below.

[0112] like Figures 1 to 4 As shown, in some embodiments, the foot assembly 3 includes a foot body 31, a gear plate 32 and a foot pad 33. The gear plate 32 is pivotally connected to the pivot portion 13 and is drivingly connected to the opening and closing mechanism 4. Specifically, the gear plate 32 is at least partially accommodated in the retaining groove 131 and is pivotally connected to the pivot portion 13 through the first connecting pin 34a, so as to allow the gear plate 32 to be drivingly connected to the opening and closing mechanism 4 through the meshing hole 113. The driving connection between the gear plate 32 and the opening and closing mechanism 4 will be described in detail below and will not be repeated here.

[0113] Further, one end of the support leg body 31 is connected to the gear plate 32, so that when the gear plate 32 pivots relative to the pivoting portion 13, it can drive the support leg body 31 to pivot relative to the pivoting portion 13 (i.e., relative to the support seat 1), so that the support leg assembly 3 can switch between the unfolded position and the folded position. Specifically, the support leg body 31 includes two side panels 311 arranged opposite to each other and a connecting plate portion 312 connected between the two side panels 311. The two side panels 311 are connected to the support leg body 31 and the pivoting portion 13 through a first connecting pin 34a, and are connected to the gear plate 32 through a second connecting pin 34b. More specifically, a portion of the gear plate 32 extends out of the retaining groove 131, the second connecting pin 34b passes through the portion of the gear plate 32 located outside the retaining groove 131 and is connected to the two side panels 311 of the support leg body 31, and the first connecting pin 34a passes through the gear plate 32, the pivoting portion 13 and the decorative member 14 and is connected to the two side panels 311 of the support leg body 31. The second connecting pin 34b can pivot around the first connecting pin 34a relative to the pivoting portion 13. The support leg body 31 is provided with a snap-fitting recess 313, specifically, the snap-fitting recess 313 is provided on the connecting plate portion 312. The decorative member 14 is provided with a snap-fitting protrusion 141, and when the support leg assembly 3 is in the folded position, the snap-fitting protrusion 141 is snap-fitted with the snap-fitting recess 313. Of course, in other embodiments, the support leg body 31 may also be provided with a snap-fitting protrusion 141, and the decorative member 14 may be provided with a snap-fitting recess 313, and this application does not limit this.

[0114] Reference Figure 4 and Figure 5 When the foot assembly 3 is in the unfolded position, the second connecting pin 34b of the foot assembly 3 abuts against the first pivot limiter 132, so that the foot assembly 3 cannot pivot away from the second column 12, thereby limiting the maximum angle between the foot assembly 3 (i.e., the foot body 31) and the support seat 1 (i.e., the first column 11), thereby limiting the position of the opening and closing mechanism 4 relative to the support seat 1 in the first state. Figure 8 and Fig. 9 When the leg assembly 3 is in the folded position, the second connecting pin 34b of the leg assembly 3 abuts against the second pivot limit portion 142, so that the leg assembly 3 cannot pivot toward the second column 12, thereby limiting the minimum angle between the leg assembly 3 (i.e., the leg body 31) and the support base 1 (i.e., the first column 11), and further limiting the position of the opening and closing mechanism 4 relative to the support base 1 in the second state.

[0115] like Figures 1 to 4As shown, the other end of the support leg body 31 (i.e., the end of the support leg body 31 away from the gear plate 32) is provided with a foot pad 33, and the foot pad 33 is detachably connected to the support leg body 31. The foot pad 33 has a support surface 331, and the plane where the support surface 331 is located is intersected with the plane where the ground or the bottom edge of the support leg body 31 is located. When the support leg assembly 3 is in the unfolded position, the support surface 331 can be in contact with or parallel to the ground (or table top). In this way, when the support leg assembly 3 is in the unfolded position, the support surfaces 331 of the four support leg assemblies 3 can form a surface contact with the ground (or table top), so that the support device 100 can support the supported object more stably on the ground (or table top).

[0116] As can be seen from the above, the opening and closing mechanism 4 is movably disposed on the support base 1. Figures 4 to 9 The support seat 1 has a snap-fit ​​hole 112, which is used for the opening and closing mechanism 4 to snap-fit, so as to keep the support device 100 in a folded state or an unfolded state. The snap-fit ​​hole 112 is provided in the first column 11 and passes through the side wall of the accommodating cavity 111. Specifically, the snap-fit ​​hole 112 is a bar-shaped hole, and the extending direction of the snap-fit ​​hole 112 is substantially parallel to the first direction D1.

[0117] like Figures 4 to 9 As shown, in some embodiments, the opening and closing mechanism 4 includes a first locking member 41, a second locking member 42, a movable seat 43, a driving member 44 and an operating member 45. The first locking member 41 is movably disposed on the movable seat 43 and has a first engaging end 4111. The second locking member 42 is movably disposed on the movable seat 43 and has a second engaging end 4211. The movable seat 43 is movably disposed in the accommodating cavity 111 and has a first position and a second position. When the movable seat 43 is located at the first position, the opening and closing mechanism 4 is in a first state, and the first engaging end 4111 of the first locking member 41 can be engaged with the engaging hole 112 to keep the leg assembly 3 in the unfolded state; when the movable seat 43 is located at the second position, the opening and closing mechanism 4 is in a second state, and the second engaging end 4211 of the second locking member 42 can be engaged with the engaging hole 112 to keep the leg assembly 3 in the folded position. The driving member 44 is movably disposed on the movable seat 43 and is drivingly connected to the first locking member 41. The operating member 45 is operably disposed on the moving seat 43 and is drivingly connected to the driving member 44 , so that the driving member 44 can be driven to move when the operating member 45 is operated.

[0118] like Figures 4 to 9As shown, the movable seat 43 is drivingly connected to the leg assembly 3, so that when the movable seat 43 moves between the first position and the second position, the leg assembly 3 can be driven to pivot between the unfolded position and the folded position. Among them, the movable seat 43 is provided with a plurality of first meshing teeth 4301. The leg assembly 3 is provided with a plurality of second meshing teeth 321 suitable for meshing with the first meshing teeth 4301, and specifically, the gear plate 32 is provided with a plurality of second meshing teeth 321. The support seat 1 is provided with a meshing hole 113, and the meshing hole 113 runs through the side wall of the accommodating cavity 111. The meshing hole 113 is used for the second meshing teeth 321 or the first meshing teeth 4301 to pass through, so as to allow the first meshing teeth 4301 to mesh with the second meshing teeth 321. In this embodiment, the second meshing teeth 321 of the gear plate 32 pass through the meshing hole 113 and mesh with the first meshing teeth 4301. When the movable seat 43 moves relative to the supporting seat 1 in a direction parallel to the first direction D1, the first meshing tooth 4301 can engage with the second meshing tooth 321 through the meshing hole 113 to drive the gear plate 32 to pivot relative to the pivot part 13, thereby driving the support leg body 31 to pivot relative to the pivot part 13 and further driving the support leg assembly 3 to pivot between the expanded position and the folded position.

[0119] like Figure 5 , Figure 7 and Fig. 9 As shown, the number of the first meshing teeth 4301 is four, and the four first meshing teeth 4301 are arranged in a direction substantially parallel to the first direction D1 (i.e., arranged in a vertical direction). Correspondingly, the number of the second meshing teeth 321 is four, and the four second meshing teeth 321 can pivot relative to the first connecting pin 34a. Figure 4 and Figure 5 When the support leg assembly 3 is in the unfolded position, the second meshing teeth 321 located at one side edge are meshed with the first meshing teeth 4301 located at the bottom, so that the support leg assembly 3 cannot further pivot relative to the support base 1 in a direction away from the second column 12. Fig. 9 When the leg assembly 3 is in the folded position, the second meshing teeth 321 located at the other side edge mesh with the first meshing teeth 4301 located at the top, so that the leg assembly 3 cannot further pivot relative to the support seat 1 in the direction close to the second column 12. In other words, through the meshing cooperation between the plurality of first meshing teeth 4301 and the plurality of second meshing teeth 321, the maximum angle (i.e., the unfolded position of the leg assembly 3) and the minimum angle (i.e., the folded position of the leg assembly 3) between the leg assembly 3 and the support seat 1 can be limited.

[0120] like Figures 10 to 14As shown, the movable seat 43 includes a first seat body 431, a second seat body 432, a first cover body 433, and a second cover body 434. The first seat body 431 is roughly cylindrical, and is provided with a first accommodating cavity 4311, and the first accommodating cavity 4311 has a first opening end 4315 and a second opening end 4314. The first cover body 433 is detachably connected to the first seat body 431 and at least partially closes the first opening end 4315 of the first accommodating cavity 4311. The first cover body 433 is provided with a penetration recess 4334 to allow the operating member 45 to extend into the first accommodating cavity 4311 through the penetration recess 4333 when the first cover body 433 is connected to the first seat body 431. The first seat body 431 is provided with a first through hole 4312, and the first through hole 4312 passes through the side wall of the first accommodating cavity 4311. The first locking member 41 is movably disposed in the first accommodating cavity 4311. The first engaging end 4111 of the first locking member 41 can extend out of the first accommodating cavity 4311 through the first through hole 4312 to allow the first engaging end 411 to engage with the engaging hole 112 (see Figure 5 ).

[0121] Continue to refer to Figures 10 to 14 , the second seat body 432 is detachably connected to the first seat body 431. Specifically, the second seat body 432 is plugged into the second open end 4314 of the first accommodating cavity 4311, and is detachably connected to the first seat body 431 through, for example, a bolt connector 435. In other embodiments, the second seat body 431 can also be detachably connected to the first seat body 431 through threaded connection, clamping, etc. Among them, the first seat body 431 is provided with a first limiting portion 4313, and the first limiting portion 4313 is connected to the inner side wall of the first accommodating cavity 4311. The second seat body 432 is provided with a second limiting portion 4325, and the second limiting portion 4325, the first limiting portion 4313 and the side wall of the first accommodating cavity 4311 are enclosed to form a limiting recess 4302, and the limiting recess 4302 is used to at least partially accommodate the first locking member 41. Among them, the side wall of the first accommodating cavity 4311 forms the bottom wall of the limiting recess 4302. The limiting recess 4302 is adjacent to the first through hole 4312 and is formed in the first accommodating cavity 4311. Specifically, the limiting recess 4302 is located above the first through hole 4312, one side of the first limiting portion 4313 forms an inner side wall of the limiting recess 4302, and the other side of the first limiting portion 4313 forms a continuous transition with at least a portion of the hole wall of the first through hole 4312, so that the movable direction of the first locking member 41 relative to the movable seat 43 can be better limited.

[0122] Further, the second seat body 432 is provided with a second accommodating chamber 4324. The second accommodating chamber 4324 is communicated with the first accommodating chamber 4311, and the driving member 44 is movably disposed in the first accommodating chamber 4311 and the second accommodating chamber 4324. The second seat body 432 is provided with an accommodating groove 4321 and a second through hole 4322, and the second through hole 4322 penetrates the side wall of the accommodating groove 4321. The second locking member 42 is movably disposed in the accommodating groove 4321, and the second engaging end 4211 of the second locking member 42 can at least partially pass through the second through hole 4322 and extend out of the accommodating groove 4321, so as to allow the second engaging end 4211 to engage with the engaging hole 112 (refer to Fig. 9 The second cover body 434 is detachably connected to the second base body 432 and at least partially closes the notch of the receiving groove 4321 , so that the second locking member 42 can be at least partially restricted in the receiving groove 4321 .

[0123] Combined with reference Fig.16 The second cover body 434 includes a covering portion 4341 and a cover body connecting portion 4342. The covering portion 4341 is arranged above the second locking member 42 to at least partially restrict the second locking member 42 in the receiving groove 4321. The cover body connecting portion 4342 is arranged on both sides of the covering portion 4341 and can be fitted with the bottom wall of the receiving groove 4321. The covering portion 4341 is generally arc-shaped and the middle part of the covering portion 4341 protrudes from the cover body connecting portion 4342. The cover body connecting portion 4342 is detachably connected to the bottom wall of the receiving groove 4321 through a threaded connector. In this way, the second locking member 42 can be conveniently installed in the receiving groove 4321 of the second seat body 432.

[0124] In this embodiment, refer to Fig.10, the number of the first locking members 41 is four, and the four first locking members 41 are evenly distributed along the circumferential direction of the first seat body 431, and the first seat body 431 is correspondingly provided with four first through-holes 4312. The support seat 1 is correspondingly provided with four engaging holes 112, and the four engaging holes 112 are evenly distributed along the circumferential direction of the support seat 1, and are arranged at intervals with the four leg assemblies 3 in the circumferential direction of the support seat 1 (that is, arranged at intervals with the four engaging holes 113). The number of the second locking members 42 is four, and the four second locking members 42 are evenly distributed along the circumferential direction of the second seat body 432, and the second seat body 432 is correspondingly provided with four second through-holes 4312. In this embodiment, the second cover body 434 is correspondingly provided with four covering parts 4341 and four cover body connecting parts 4342, and the four covering parts 4341 and the four cover body connecting parts 4342 are arranged at intervals. Among them, the angle between two adjacent covering parts 4341 is approximately 90°, and the angle between two adjacent connecting parts 1224342 is approximately 90°. In other embodiments, the number of first locking members 41 can be, for example, one, two, or other integers, the number of second locking members 42 can be, for example, one, two, or other integers, and the number of engaging holes 112 can also be set to one, two, or other integers according to the position and number of the first locking members 41 and the position and number of the second locking members 42, which is not limited in this application. For ease of description, the following is based on the left side of the support seat 1 (refer to Figures 4 to 10 ) as an example.

[0125] like Fig.12 As shown, in some embodiments, the first locking member 41 is movably disposed in the first accommodating cavity 4311. Figure 5 and Fig. 9 , the first locking member 41 can switch between the first locking position and the first unlocking position. When the first locking member 41 is in the first locking position, the first engaging end 4111 passes through the first through hole 4312 and extends out of the first accommodating cavity 4311 to allow the first engaging end 4111 to engage with the engaging hole 112; when the first locking member 41 is in the first unlocking position, the first engaging end 4111 retreats into the first through hole 4312 to allow the first engaging end 4111 to disengage from the engaging hole 112. Fig.17The first locking member 41 includes a first bayonet portion 411, which is roughly pin-shaped. The first bayonet portion 411 is inserted into the first outlet hole 4312 and can move in a direction roughly parallel to the second direction D2. The second direction D2 refers to a direction parallel to the radial direction of the movable seat 43 and outward, and the second direction D2 is not parallel to the first direction D1. In this embodiment, the second direction D2 is roughly perpendicular to the first direction D1. One end of the first bayonet portion 411 forms a first engaging end 4111, and the first engaging end 4111 has an arc-shaped end face, so that the first engaging end 4111 can penetrate into and engage with the engaging hole 112. The other end of the first bayonet portion 411 is drivingly connected to the driving member 44. A first limiting protrusion 413 is disposed on the outer side surface of the first locking portion 411 . The first limiting protrusion 413 can abut against the end surface of the first through hole 4312 to limit the first locking member 41 at least partially in the first accommodating cavity 4311 .

[0126] Reference Fig.12 and Fig.14 The opening and closing mechanism 4 also includes a first reset member 47a, which is arranged between the movable seat 43 and the first locking member 41, and is used to bias the first locking member 41 and move the first locking member 41 to a first unlocking position in which the first engaging end 4111 exits the engaging hole 112. Specifically, the first locking member 41 is provided with an abutment portion 414, which is connected to the outer side surface of the first latch portion 411. The abutment portion 414 is at least partially accommodated in the limiting recess 4302. The first reset member 47a is, for example, a compression spring. The first reset member 47a is accommodated in the limiting recess 4302, and one end of the first reset member 47a abuts against the bottom wall of the limiting recess 4302, and the other end of the first reset member 47a abuts against the abutment portion 414. Combined with reference Figure 5 When the first locking member 41 is in the first locking position, the first restoring member 47a is in a compressed energy storage state, and the first engaging end 4111 passes through the first through hole 4312 to engage with the engaging hole 112. Fig. 9When the first locking member 41 is located at the first unlocking position, the first reset member 47a is in a natural extension state or a relatively small degree of compressed energy storage state, and the first engaging end 4111 exits the engaging hole 112 and retracts into the first through hole 4312 to allow the movable seat 4 to move between the first position and the second position relative to the support seat 1. Further, when the movable seat 4 is located at the first position, the first through hole 47a is aligned with the engaging hole 112, and the first locking member 41 can switch between the first locking position and the first unlocking position. When the first locking member 41 is not pushed or the pushing force on the first locking member 414 is reduced, the elastic restoring force of the first reset member 47a can push the abutting portion 414 to drive the first locking member 41 to move toward the first unlocking position in the opposite direction of the second direction D2. When the movable seat 4 is located at the second position, the first reset member 47a biases the abutting portion 414 of the first locking member 41, so that the first locking member 41 remains in the first unlocking position. At the same time, the second engaging end 4211 of the second locking member 42 engages with the engaging hole 112 .

[0127] In this embodiment, in order to prevent the first reset member 47a from deflecting during the compression energy storage process, the abutment portion 414 is provided with a first abutment boss 415. One end of the first reset member 47a abuts against the bottom wall of the limiting recess 4302, and the other end of the first reset member 47a is sleeved on the first abutment boss 415.

[0128] like Fig.12 and Fig.14 As shown, the second locking member 42 is movably disposed in the receiving groove 4321. Figure 5 and Fig. 9, the second locking member 42 can switch between the second locking position and the second unlocking position. When the second locking member 42 is located at the second locking position, the second engaging end 4211 passes through the second through hole 4312 and extends out of the second accommodating cavity 4311 to allow the second engaging end 4211 to engage with the engaging hole 112; when the second locking member 42 is located at the second unlocking position, the second engaging end 4211 retreats into the second through hole 4312 to allow the second engaging end 4211 to be released from the engaging hole 112. Further, the second locking member 42 includes a second bayonet portion 421 and a second limiting protrusion 422, the second bayonet portion 421 is substantially in the shape of a pin, and one end of the second bayonet portion 421 forms the second engaging end 4211. The second bayonet portion 421 is provided in the second through hole 4322 and can move relative to the second seat body 432 in a direction parallel to the second direction D2, and the second engaging end 4211 can extend out of the receiving groove 4321 through the second through hole 4322 to allow the second engaging end 4211 to engage with the engaging hole 112. The second limiting protrusion 422 is provided on the outer side surface of the second bayonet portion 421, and the second limiting protrusion 422 can be stopped by the end surface of the second through hole 4322 to limit the second locking member 42 at least partially in the receiving groove 4321. Specifically, the second limiting protrusion 422 is provided at an end of the second bayonet portion 421 away from the second engaging end 4211 and is accommodated in the receiving groove 4321.

[0129] Reference Fig.12 and Fig.14The opening and closing mechanism 4 further includes a second reset member 47b, which is, for example, a compression spring. A connecting protrusion 4323 is provided in the receiving groove 4321 of the second seat body 432, and the second reset member 47b is provided between the second locking member 42 and the connecting protrusion 4323. The second reset member 47b is suitable for biasing the second locking member 42 to move the second locking member 42 to the second locking position. Further, when the movable seat 43 is located at the second position, the first locking member 41 is located at the first unlocking position, the second through hole 4322 is aligned with the engaging hole 112, and the second locking member 42 moves from the second unlocking position to the second locking position relative to the second seat body 432 along the second direction D2 under the elastic restoring force of the second reset member 47b, so that the second engaging end 4211 of the second locking member 42 can engage with the first engaging hole 112. In this embodiment, the second engaging end 4211 has an arc-shaped end surface, and when the movable seat 43 moves from the second position to the first position, the end of the engaging hole 112 can push against the arc-shaped end surface of the second engaging end 4211 to allow the second engaging end 4211 to exit the engaging hole 112 and be stopped by the side wall of the accommodating cavity 111, so that the movable seat 43 can move along the first direction D1 (i.e. upward) relative to the supporting seat 1, thereby driving the support leg assembly 3 to switch from the folded position to the locked state. In this way, the support leg assembly 3 can be unfolded without directly operating (e.g. pressing) the second locking member 42, thereby improving the convenience of operation of the supporting device 100.

[0130] In this embodiment, in order to prevent the second return member 47b from shifting during the biasing process, the second locking member 42 is provided with a contact recess 423, and a second contact boss 4327 is provided on the side of the connecting protrusion 4323 facing the second locking member 42, one end of the second return member 47b is accommodated in the contact recess 423 and abuts against the bottom wall of the contact recess 423, and the other end of the second return member 47b is sleeved on the second abutment boss 4327 and abuts against the connecting protrusion 4324.

[0131] like Figure 5 , Figure 7 and Fig. 9 As shown, the driving member 44 is movably disposed in the first accommodating cavity 4311 and the second accommodating cavity 4324. The operating member 45 at least partially accommodates the first accommodating cavity 4311 and is detachably connected to the driving member 44. When the operating member 45 is operated in a direction parallel to the first direction D1, the driving member 44 can be driven to move between the first driving position and the second driving position relative to the moving seat 43, and the moving seat 43 can be driven to move between the first position and the second position by the driving member 44. Fig.18In some embodiments, the driving member 44 includes a driving body 441 and a limiting boss 442. The driving body 441 has a first end 4411 and a second end 4412, and the outer contour of the driving body 441 gradually decreases from the first end 4411 to the second end 4412. The limiting boss 442 is disposed at the first end 4411 of the driving body 441. Specifically, the outer contour of the driving body 441 is roughly conical, more specifically, the outer contour of the driving body 441 is roughly truncated cone, and the limiting boss 442 is disposed on the outer side of the first end 4411. In this embodiment, the driving member 44 is an integrally formed component.

[0132] like Figure 5 , Figure 7 , Fig. 9 and Fig.18 As shown, the driving body 441 of the driving member 44 is provided with a driving recess 4413, and the driving recess 4413 extends from the second end 4412 to the first end 4411. The extension direction of the driving recess 4413 is not parallel to the first direction D1 and the second direction D2, and the end of the first locking member 41 away from the first engaging end 4111 is provided with a driving protrusion 412. The side surface of the driving protrusion 412 forms a first driving inclined surface 4121, and the bottom wall of the driving recess 4413 forms a second driving inclined surface 4414. The driving protrusion 412 is engaged with the driving recess 4413 and can move along the extension direction of the driving recess 4413, and the first driving inclined surface 4121 abuts against the second driving inclined surface 4414 and can slide relative to the first driving inclined surface 4121, so as to allow the first locking member 41 to move between the first locking position and the first unlocking position relative to the moving seat 43 along the second direction D2 when the driving member 44 moves relative to the moving seat 43 along the first direction D1.

[0133] In another embodiment, the driving body 441 is provided with a driving protrusion 412, and the side surface of the driving protrusion 412 forms a first driving inclined surface 4121. The end of the first locking member 41 away from the first engaging end 4111 is provided with a driving recess 4413, and the bottom wall of the driving recess 4413 forms a second driving inclined surface 4414, and the driving recess 4413 is engaged with the driving protrusion 412 and can move along the extending direction of the driving protrusion 412. In other embodiments not shown, the side surface of the driving body 441 can also form the first driving inclined surface 4121, and the end of the first locking member 41 away from the first engaging end 411 forms the second driving inclined surface 4414, and the first driving inclined surface 4121 abuts against the second driving inclined surface 4414 and can slide relative to the first driving inclined surface 4121.

[0134] like Figure 5As shown, when the driving member 44 is located in the first driving position, the first end 4411 of the driving body 441 pushes the first locking member 41, so that the first engaging end 4111 of the first locking member 41 can pass through the first outlet hole 4312 and engage with the engaging hole 112 (that is, the first locking member 41 is pushed to the first locking position by the first end 4411). The movable seat 43 is kept in the first position, so that the support leg assembly 3 is kept in the unfolded position. Specifically, when the driving member 44 is located in the first driving position, the driving protrusion 412 of the first locking member 41 is at least partially engaged in the driving recess 4413 of the driving member 44, and the first driving inclined surface 4121 is in contact with the second driving inclined surface 4414. Further, when the driving member 44 is located in the first driving position, the side of the first locking member 41 is in contact with the limiting boss 442 to prevent the first locking member 41 from disengaging from the driving member 44. Furthermore, when the driving member 44 is located at the first driving position, the second end portion 4412 of the driving member 44 abuts against the top wall of the second accommodating cavity 4324 .

[0135] Combined with reference Figure 7 When the driving member 44 moves from the first driving position to the second driving position relative to the moving seat 43 in the opposite direction of the first direction D1, the first locking member 41 moves from the first locking position to the first unlocking position relative to the moving seat 43 in the opposite direction of the second direction D2 under the action of the elastic restoring force of the first reset member 47a, so that the first driving inclined surface 4121 abuts against the second driving inclined surface 4414, thereby causing the driving protrusion 412 to slide along the driving recess 4413 toward the second end 4412.

[0136] like Figure 7 and Fig. 9 As shown, when the driving member 44 moves to the second driving position, the second end 4412 of the driving body 441 abuts against the first locking member 41, so that the first locking member 41 moves to and remains in the first unlocking position (i.e., the first engaging end 4111 exits the engaging hole 112 and returns to the first exit hole 4312). At this time, the operating member 45 can be operated to drive the driving member 44 to move relative to the support seat 1, thereby driving the moving seat 43 to move relative to the support seat 1 between the first position and the second position.

[0137] Among them, refer to Figure 7When the driving member 44 is located at the second driving position and the moving seat 43 is located at the first position, the driving member 44 abuts against the first cover 433 of the moving seat 43, and is used to drive the moving seat 43 to move from the first position to the second position relative to the support seat 1 in the opposite direction of the first direction D1. Specifically, the operating member 45 is operated in the opposite direction of the first direction D1 to drive the driving member 4 in the opposite direction of the first direction D1 relative to the support seat 1, and then the driving member 4 pushes the first cover 43 to drive the moving seat 43 to move from the first position to the second position relative to the support seat 1 in the opposite direction of the first direction D1, thereby realizing the switching of the support leg assembly 3 from the unfolded position to the folded position. In this way, when the support leg assembly 3 is located at the unfolded position, the driving member 44 is located at the first driving position, and the first end 4411 of the driving member 44 abuts against the first locking member 41 so that the first locking member 41 remains in the first locking position, thereby limiting the movement of the moving seat 43 relative to the support seat 1, and then the support leg assembly 3 is locked in the unfolded position. That is, when the operating member 45 is not operated, the support leg assembly 3 is locked in the extended position, thereby preventing the support leg assembly 3 from accidentally switching from the extended position to the retracted position when supported on the ground or a tabletop, thereby improving the support stability of the support device.

[0138] Reference Fig. 9 When the driving member 44 is located at the second driving position and the movable seat 43 moves to the second position, the second locking member 42 is located at the second locking position engaged with the engaging hole 112, the first locking member 41 is located at the first unlocking position and accommodated in the first accommodating cavity 4311, and the first engaging end 4111 of the first locking member 41 can be stopped by the side wall of the first accommodating cavity 4311. The second driving inclined surface 4414 of the driving member 44 abuts against the first driving inclined surface 4121 of the first locking member 41, so that when the driving member 44 moves relative to the supporting seat 1 along the first direction D1, it can drive the first locking member 41 to move relative to the supporting seat 1, thereby driving the movable seat 43 to move relative to the supporting seat 1 along the first direction D1.

[0139] like Fig.18As shown, in some embodiments, the driving member 44 is provided with a guide hole 445, and the guide hole 445 extends from the second end 4412 of the driving body 441 to the first end 4411 along a direction substantially extending in a direction parallel to the first direction D1. The moving seat 43 is provided with a guide member 4303, and the guide member 4303 is at least partially accommodated in the second accommodating cavity 4324. The guide member 4303 extends in a direction substantially parallel to the first direction D1. The guide member 4303 is inserted into the guide hole 445 and can move along the guide hole 445 to guide the guide member 4303 to move substantially in the first direction D1 relative to the moving seat 43, and avoid the guide member 4303 from deviating during the movement. In this embodiment, the guide member 4303 is detachably connected to the second seat body 432, and the guide member 4303 is, for example, a bolt. The second seat body 432 is provided with a threaded hole 4326, and the threaded hole 4326 communicates with the second accommodating cavity 4324 and the accommodating groove 4321. The guide member 4303 is threadedly connected to the threaded hole 4326, and a portion of the guide member 4303 extends into the second accommodation cavity 4324. In this embodiment, a portion of the guide member 4303 extends into the first accommodation cavity 4311.

[0140] like Figure 5 , Fig.12 and Fig.14 As shown, in some embodiments, the opening and closing mechanism 4 also includes a driving reset member 47c, which is arranged between the first cover body 433 and the driving member 44 to bias the driving member 44 so that the driving member 44 moves to the first driving position. The driving reset member 47c is, for example, a compression spring. Specifically, a limiting groove 443 is provided at one end of the driving member 44 facing the first cover body 433 (i.e., the first end 4411 of the driving member 44), and a limiting boss 444 is provided in the limiting groove 443. The first cover body 433 has a boss portion 4331, and the boss portion 4331 is provided with a limiting groove 4332. One end of the driving reset member 47c is sleeved on the limiting boss 444, and the other end of the driving reset member 47c is inserted in the limiting groove 4332. In this way, the driving reset member 47c can be prevented from deflecting during the compression process.

[0141] like Figure 12 to Figure 14As shown, in some embodiments, the operating member 45 is operably inserted into the first accommodating cavity 4311, and is detachably connected to the driving member 44 through the first connecting member 49. The operating member 45 includes an operating portion 451 and an operating connecting portion 452 connected to the operating portion 451. The first cover 433 is provided with a connecting through hole 4333, one end of the first connecting member 49 is detachably connected to the operating member 45, and the other end of the first connecting member 49 passes through the connecting through hole 4333 and is detachably connected to the driving member 44. In this embodiment, the first connecting member 49 is, for example, a screw, and both ends of the screw are provided with threads. The operating portion 451 is threadedly connected to the first connecting member 49. At least a portion of the operating portion 451 is located outside the first accommodating cavity 45 and the accommodating cavity 111, so as to facilitate the operation of the operating member 45. Specifically, when the support device 100 is in the second state in which the support leg assembly 3 is kept in the folded position, the operating portion 45 is located outside the first accommodating cavity 45; when the support device 100 is in the first state in which the support leg assembly 3 is kept in the unfolded position, the side of the operating portion 45 connected to the operating connection portion 452 can abut against the end surface of the first open end 4315 of the accommodating cavity 111. The operating connection portion 452 extends into the first accommodating cavity 4311 through the insertion recess 4334. The driving member 44 has a plug-in recess 446, which is arranged on the limiting boss 442. The operating connection portion 452 can extend into the first accommodating cavity 4311 through the insertion recess 4334 and be plugged and matched with the plug-in recess 446. Such arrangement can, on the one hand, realize the connection and positioning of the operating member 45, and on the other hand, improve the stability of the connection between the driving member 44 and the operating member 45, so that the operating member 45 and the driving member 44 move in a direction roughly parallel to the first direction D1, thereby preventing the operating member 45 from shaking during operation.

[0142] Further, the operating member 45 is provided with a pad 46, which is provided on a side of the operating portion 451 away from the operating connection portion 452. The pad 46 can be detachably connected to the operating member 45 by snap-fitting or threaded connection. The pad 46 can also be fixedly connected to the operating member 45 by bonding or the like. In this embodiment, the pad 46 is detachably connected to the first connection member 49. Specifically, the pad 46 and the operating member 45 are connected to the same end of the first connection member 49. The side of the pad 46 facing away from the operating member 45 is a plane, so as to facilitate pressing or pushing the pad 46. The pad 46 is made of plastic, for example.

[0143] The following describes in detail the operation steps and principles of the support device 100 provided according to some embodiments of the present application:

[0144] like Figure 5As shown, when the support device 100 is in the unfolded position, the leg assembly 3 is in the unfolded position, and the opening and closing mechanism 4 is in the first state. The movable seat 43 is in the first position, the first through hole 4312 of the movable seat 43 is opposite to the engaging hole 112 of the support seat 1, the driving member 33 is in the first driving position, and the first end 4411 of the driving member 33 abuts against the first locking member 41, so that the first locking member 41 abuts and remains in the first locking position (i.e., the first engaging end 4111 extends out of the first through hole 4312 and engages with the engaging hole 112). At this time, the second locking member 42 is accommodated in the first accommodating cavity 4311, and the second engaging end 4211 is stopped by the side wall of the first accommodating cavity 4311.

[0145] When the support device 100 needs to be folded (i.e., the support device 100 is switched to the folded position), refer to Figures 4 to 7 , pull the operating member 45 in the opposite direction (downward) of the first direction D1 to drive the driving member 44 to move from the first driving position to the second driving position in the opposite direction of the first direction D1. In this process, the first locking member 41 moves relative to the moving seat 43 in the opposite direction of the second direction D2 under the elastic restoring force of the first reset member 47a, and moves from the first end 4411 to the second end 4412 along the driving recess 412 relative to the driving member 44, so that the first engaging end 4111 of the first locking member 41 exits the engaging hole 112, so that the first locking member 41 moves from the first locking position to and remains in the first unlocking position, thereby allowing the moving seat 43 to move relative to the support seat 1. Refer to Figures 6 to 9 , further pulling the operating member 45 in the opposite direction of the first direction D1, the driving member 44 can push the first cover 433 to drive the moving seat 43 to move from the first position to the second position relative to the supporting seat 1 in the opposite direction of the first direction D1. During the movement of the moving seat 43 relative to the supporting seat 1, the first meshing teeth 4301 and the second meshing teeth 321 are engaged to drive the leg assembly 3 to pivot in the counterclockwise direction from the extended position to the retracted position.

[0146] Reference Figures 8 to 9When the support leg assembly 3 pivots to the folded position, the support leg assembly 3 cannot further pivot in the counterclockwise direction, so that the movable seat 43 cannot further move relative to the support seat 1 in the opposite direction of the first direction D1, thereby keeping the movable seat 43 in the second position. At this time, the driving member 44 is located in the second driving position, the first locking member 41 abuts against the second end 4412 of the driving member 44 and is accommodated in the first accommodating chamber 4311, and the first locking member 41 can be stopped by the side wall of the first accommodating chamber 4311. The second through hole 4322 of the movable seat 43 is aligned with the engaging hole 112, and under the elastic restoring force of the second reset member 47b, the second engaging end 4211 of the second locking member 42 extends out of the second through hole 4322 and engages with the engaging hole 112 (that is, the second locking member 42 is located in the second locking position), so that the support leg assembly 3 is kept in the folded position. In this way, the support device 100 is switched from the unfolded position to the folded position.

[0147] In short, by pulling the operating member 45 downward, the supporting device 100 can be folded.

[0148] When it is necessary to unfold the folding device 100 (ie, switch the folding device 100 from the folded position to the unfolded position), it can be achieved by any one of the following two methods or by a combination of the two methods.

[0149] Method 1:

[0150] Reference Figures 6 to 9 , taking the support leg assembly 3 located on the right side as an example. Pivot any support leg assembly 3 in the clockwise direction (the direction away from the second column 12) to pivot the support leg assembly 3 from the folded position to the unfolded position. The second engaging end 4211 of the second locking member 42 is pushed by the end of the engaging hole 112 so that the second engaging end 4211 exits the engaging hole 112, thereby allowing the moving seat 43 to move relative to the supporting seat 1. At the same time, the moving seat 43 is driven to move from the second position to the first position through the meshing cooperation between the first meshing teeth 4301 and the second meshing teeth 321.

[0151] Reference Figure 6 to Figure 7 When the foot assembly 3 pivots to the unfolded position, the foot assembly 3 cannot further pivot in the clockwise direction relative to the support base 1, so that the movable base 43 cannot continue to move in the first direction D1 relative to the support base 1, so that the movable base 43 remains in the first position. At the same time, the second locking member 42 is accommodated in the first accommodating cavity 4311, and the second engaging end 4211 is stopped by the side wall of the first accommodating cavity 4311. The first through hole 4312 is aligned with the engaging hole 112, the driving member 44 is located at the second driving position, and the first locking member 41 is located at the first unlocking position.

[0152] Combined with reference Figures 4 to 5Under the elastic restoring force of the driving reset member 47c, the driving member 44 drives the operating member 45 to move from the second driving position to the first driving position relative to the moving seat 43, so that the driving protrusion 412 of the first locking member 41 slides from the second end 4412 to the first end 4411 along the driving recess 4413 relative to the driving member 44, thereby making the first locking member 41 move from the first unlocking position to the first locking position relative to the moving seat 43. That is, under the elastic restoring force of the driving reset member 47c, the first engaging end 4111 of the first locking member 41 passes through the first exit hole 4312 and engages with the engaging hole 112, thereby locking the leg assembly 3 in the unfolded position, thereby realizing the switching of the support device 100 from the folded position to and locking it in the unfolded position.

[0153] Method 2:

[0154] Reference Figures 6 to 9 , the operating member 45 (or the pad 46) is pressed along the first direction D1 (upward), and the second engaging end 4211 of the second locking member 42 is pushed by the end of the engaging hole 112 so that the second engaging end 4211 exits the engaging hole 112, thereby allowing the moving seat 43 to move relative to the supporting seat 1. At the same time, the driving member 44 drives the first locking member 41 to move along the first direction D1 through the first driving inclined surface 4121 and the second driving inclined surface 4414 abutting and cooperating, and then drives the moving seat 43 to move along the first direction D1 relative to the supporting seat 1 through the first bayonet portion 411 penetrated in the first exit hole 4312. During the movement of the moving seat 43, the first meshing tooth 4301 and the second meshing tooth 321 are meshed and cooperated to drive the support leg assembly 3 to pivot from the folded position to the unfolded position in the direction away from the second column 12.

[0155] Reference Figure 6 to Figure 7 When the operating member 45 is pressed to pivot the leg assembly 3 to the unfolded position, the leg assembly 3 cannot further pivot in the direction away from the second column 12 relative to the support seat 1, and the movable seat 43 remains in the first position. At this time, the second locking member 42 is accommodated in the first accommodating cavity 4311, and the second engaging end 4211 is stopped by the side wall of the first accommodating cavity 4311. The first through hole 4312 is aligned with the engaging hole 112, the driving member 44 is located at the second driving position, and the first locking member 41 is located at the first unlocking position.

[0156] At this time, the operating member 45 can no longer be pressed upward. Figures 4 to 5Under the elastic restoring force of the driving reset member 47c, the driving member 44 drives the operating member 45 to move from the second driving position to the first driving position relative to the moving seat 43, so that the driving protrusion 412 of the first locking member 41 slides from the second end 4412 to the first end 4411 along the driving recess 4413 relative to the driving member 44, thereby making the first locking member 41 move from the first unlocking position to the first locking position relative to the moving seat 43. That is, under the elastic restoring force of the driving reset member 47c, the first engaging end 4111 of the first locking member 41 passes through the first exit hole 4312 and engages with the engaging hole 112, thereby locking the leg assembly 3 in the unfolded position, thereby realizing the switching of the support device 100 from the folded position to and locking it in the unfolded position. Of course, at this time, the operating member 45 can be further pressed upward to drive the driving member 44 to move from the second driving position to the first driving position relative to the moving seat 43, thereby driving the first engaging end 4111 of the first locking member 41 to pass through the first exit hole 4312 and engage with the engaging hole 112, thereby achieving the switching of the support device 100 from the folded position to and locking it in the unfolded position.

[0157] In short, the support device 100 can be folded by pressing the operating member 4 and the pivoting foot assembly 3 upward.

[0158] According to the support device 100 provided in the embodiment of the present application and the artificial tree equipped with the support device 100, the opening and closing mechanism 4 is movably arranged on the support base 1 and is drivingly connected to the leg assembly 3, so that when the opening and closing mechanism 4 moves relative to the support base 100, it can switch between the first state and the second state, thereby driving the leg assembly 3 to pivot between the unfolded position and the folded position. Further, when the opening and closing mechanism is in the first state, the leg assembly 3 is maintained in the unfolded position, so that the leg assembly 3 can be firmly supported on the ground or the table. When the opening and closing mechanism is in the second state, the leg assembly 3 is maintained in the folded position, reducing the occupied space of the support device 100, so as to facilitate the storage or transportation of the support device 100. The support device 100 can be easily unfolded and folded to meet the use requirements of the support device 100 in different scenarios.

[0159] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0160] The above embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for those of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A foldable support device, It is characterized in that include: A support seat, provided with a receiving cavity and a mounting portion for mounting a supported object, the receiving cavity extends in a direction parallel to the first direction, and an outer side surface of the support seat is provided with a pivoting portion; A leg assembly, pivotally connected to the pivot portion and having an extended position and a folded position; as well as an opening and closing mechanism, drivingly connected to the leg assembly, the opening and closing mechanism being at least partially accommodated in the accommodation cavity and being movable along the first direction, Wherein, the opening and closing mechanism can switch between a first state and a second state to drive the support leg assembly to switch between the deployed position and the folded position. When the opening and closing mechanism is in the first state, the support leg assembly is maintained in the deployed position, and when the opening and closing mechanism is in the second state, the support leg assembly is maintained in the folded position.

2. The support device according to claim 1, It is characterized in that The support seat is provided with a snap-fit ​​hole, and the snap-fit ​​hole passes through the side wall of the accommodating cavity. The opening and closing mechanism includes: A movable seat, drivingly connected to the support leg assembly, the movable seat being movably disposed in the accommodating cavity and having a first position and a second position; A first locking member having a first engaging end, the first locking member being movably disposed on the movable seat and having a first locking position allowing the first engaging end to engage with the engaging hole and a first unlocking position allowing the first engaging end to withdraw from the engaging hole to release the engagement; A second locking member having a second engaging end, the second locking member being movably disposed on the movable seat and having a second locking position allowing the second engaging end to engage with the engaging hole and a second unlocking position allowing the second engaging end to withdraw from the engaging hole to release the engagement; When the movable base is located at the first position, the opening and closing mechanism is in the first state, and the first locking member is located at the first locking position to allow the leg assembly to remain in the extended position; when the movable base is located at the second position, the opening and closing mechanism is in the second state, and the second locking member is located at the second locking position to allow the leg assembly to remain in the folded position.

3. The support device according to claim 2, It is characterized in that The movable seat is provided with a first accommodating cavity, the first accommodating cavity has a first opening end, the first opening end is provided with a first cover body, the first cover body at least partially closes the first opening end, and the opening and closing mechanism further includes: a driving member, at least partially accommodated in the first accommodating cavity and capable of moving relative to the movable seat in a direction parallel to the first direction, the driving member having a first driving position and a second driving position; Among them, when the driving member is located at the first driving position, the first engaging end of the first locking member can engage with the engaging hole, so that the movable seat is maintained in the first position, thereby keeping the support leg assembly in the expanded position; when the driving member is located at the second driving position, the driving member can drive the movable seat from the second position to the first position through the first locking member, and can drive the movable seat from the first position to the second position by pushing the first cover body.

4. The support device according to claim 3, It is characterized in that The movable seat is provided with a first through hole, the first through hole passes through the side wall of the first accommodating cavity, the first locking member is penetrated in the first through hole and can move relative to the movable seat in a direction parallel to a second direction, wherein the second direction is not parallel to the first direction, One of the first locking member and the driving member is provided with a first driving inclined surface, and the other of the first locking member and the driving member is provided with a second driving inclined surface, the second driving inclined surface abuts against the first driving inclined surface and can slide relative to the first driving inclined surface to allow the first locking member to move between the first locking position and the first releasing position along the second direction relative to the moving seat when the driving member moves along the first direction relative to the moving seat.

5. The support device according to claim 4, It is characterized in that A driving protrusion is provided on one of an end of the first locking member away from the first engaging end and a side surface of the driving member, and the side surface of the driving protrusion forms the first driving inclined surface; A driving recess is provided on the other of one end of the first locking member away from the first engaging end and the side surface of the driving member, the extending direction of the driving recess is not parallel to the first direction and the second direction, and the bottom wall of the driving recess forms the second driving inclined surface; The driving protrusion is engaged with the driving recess and can move along the extending direction of the driving recess.

6. The support device according to claim 4, It is characterized in that The first locking member includes a pin-shaped first bayonet portion, one end of which forms the first engaging end, and the outer side surface of the first bayonet portion is provided with a first limiting protrusion, which can abut against the end surface of the first outlet hole to at least partially limit the first locking member in the first accommodating cavity.

7. The supporting device according to claim 3, It is characterized in that The driving member includes a driving body and a limiting boss, the driving body has a first end and a second end and gradually becomes smaller from the first end to the second end, the limiting boss is arranged at the first end of the driving body, and the driving member is movable between a first driving position and a second driving position relative to the moving seat, When the movable seat is located at the first driving position, one end of the first locking member away from the first engaging end abuts against the side of the first end, and the side of the first locking member can be stopped by the limiting boss; when the movable seat is located at the second driving position, one end of the first locking member away from the first engaging end abuts against the side of the second end, and the first end abuts against the first cover body.

8. The support device according to claim 3, It is characterized in that The opening and closing mechanism also includes: The first restoring member is disposed between the first locking member and the moving seat 43 , and the first restoring member is suitable for biasing the first locking member to move the first locking member toward the first unlocking position.

9. The support device according to claim 8, It is characterized in that The first locking member includes a first bayonet portion and an abutment portion, one end of the first bayonet portion forms the first engaging end, and the abutment portion is connected to the outer side surface of the first bayonet portion. The movable seat is provided with a first through hole and a limiting recess, wherein the first through hole passes through the side wall of the first accommodating cavity, the limiting recess is adjacent to the first through hole and is located in the first accommodating cavity, the first bayonet portion is inserted in the first through hole, and the abutting portion is at least partially accommodated in the limiting recess, One end of the first restoring member abuts against the bottom wall of the limiting recess, and the other end of the first restoring member abuts against the abutting portion.

10. The support device according to claim 3, It is characterized in that The opening and closing mechanism also includes: The operating member is operably disposed on the movable seat and is detachably connected to the driving member via a first connecting member.

11. The support device according to claim 10, It is characterized in that The first cover body is provided with a connecting through hole and a penetration recess, the operating member has an operating portion, the operating portion is located outside the first accommodating cavity, and at least a portion of the operating member can extend into the first accommodating cavity through the penetration recess, One end of the first connecting member is detachably connected to the operating member, and the other end of the first connecting member passes through the connecting through hole and is detachably connected to the driving member.

12. The support device according to claim 11, It is characterized in that The operating member is provided with a pad, and the pad is provided on the operating portion.

13. The support device according to claim 3, It is characterized in that The opening and closing mechanism further includes a driving reset member, which is disposed between the first cover body and the driving member to bias the driving member so that the driving member moves toward the first driving position.

14. The support device according to claim 13, It is characterized in that The end of the driving member facing the first cover body is provided with a limiting groove, a limiting convex column is provided in the limiting groove, the first cover body has a boss portion, and the boss portion is provided with a limiting groove, One end of the driving reset member is sleeved on the limiting convex column, and the other end of the driving reset member is inserted into the limiting groove.

15. The support device according to claim 3, It is characterized in that The driving member is provided with a guide hole, the extension direction of which is parallel to the first direction, and the moving seat is provided with a guide member, the guide member extends in parallel to the first direction, and the guide member is inserted into the guide hole and can move along the guide hole.

16. The support device according to claim 2, It is characterized in that The mobile seat comprises: A first base body is provided with a first accommodating cavity, and the first locking member is movably disposed on the first base body; and The second base body is detachably connected to the first base body, the second base body is provided with a second accommodating cavity, the second accommodating cavity is communicated with the first accommodating cavity, and the second locking member is movably arranged on the second base body.

17. The support device according to claim 16, It is characterized in that The second base is provided with a receiving groove and a second through hole, the second through hole passes through the side wall of the receiving groove, the opening end of the receiving groove is provided with a second cover, and the second cover is detachably connected to the second base. The second locking member is movably disposed in the accommodating groove, and the second engaging end can at least partially pass through the second through hole and extend out of the accommodating groove, so as to allow the second engaging end to engage with the engaging hole.

18. The support device according to claim 17, It is characterized in that The second locking member includes a second bayonet portion and a second limiting protrusion, the second bayonet portion is pin-shaped, one end of the second bayonet portion forms the second engaging end, and the second limiting protrusion is arranged on the outer side surface of the second bayonet portion. The second limiting protrusion can be stopped by the end surface of the second through hole to limit the second locking member at least partially within the accommodating groove.

19. The support device according to claim 17, It is characterized in that A connecting protrusion is provided in the receiving groove, and the opening and closing mechanism further comprises: A second restoring member is disposed between the second locking member and the connecting protrusion, and the second restoring member is adapted to bias the second locking member so that the second locking member moves toward the second locking position.

20. The support device according to claim 1, It is characterized in that The opening and closing mechanism comprises: a movable seat, at least partially accommodated in the accommodation cavity and capable of moving relative to the support seat in a direction parallel to the first direction, wherein the movable seat is provided with a plurality of first meshing teeth, The support leg assembly is provided with a plurality of second meshing teeth, and the support seat is provided with a meshing hole, and the meshing hole penetrates the side wall of the accommodating cavity. When the moving seat moves relative to the supporting seat in a direction parallel to the first direction, the first engaging teeth of the support leg can engage with the second engaging teeth through the engaging holes to drive the support leg assembly to pivot between the extended position and the retracted position.

21. The support device according to claim 20, It is characterized in that The plurality of first meshing teeth are distributed on the outer side surface of the moving seat along a direction parallel to the first direction.

22. The support device according to claim 20, It is characterized in that The foot assembly comprises: a gear plate, provided with the plurality of second meshing teeth and pivotally connected to the pivoting portion, the plurality of second meshing teeth meshingly cooperating with the plurality of first meshing teeth; and The support body is connected with the gear plate.

23. The support device according to claim 22, It is characterized in that The pivoting portion is provided with a containing groove, the containing groove is communicated with the meshing hole, at least a portion of the gear plate is accommodated in the containing groove and is pivotally connected to the pivoting portion.

24. The support device according to claim 23, It is characterized in that The pivoting portion is provided with a decorative piece; One of the decorative element and the support foot body is provided with a snap-fitting protrusion, and the other of the decorative element and the support foot body is provided with a snap-fitting recess. When the support leg assembly is in the folded position, the engaging protrusion is engaged with the engaging recess.

25. The support device according to claim 24, It is characterized in that The pivoting portion is provided with a first pivoting limit portion, and when the support leg assembly is located at the unfolded position, at least a portion of the support leg assembly abuts against the first pivoting limit portion. The decorative element is provided with a second pivot limit portion, and when the support leg assembly is located at the folded position, at least a portion of the support leg assembly abuts against the second pivot limit portion.

26. The support device according to claim 22, It is characterized in that The support leg assembly also includes a foot pad having a support surface, and the foot pad is detachably arranged on an end of the support leg body away from the gear plate.

27. A support device according to any one of claims 1 to 26, It is characterized in that The number of the support leg assemblies is at least two, the support base is provided with at least two pivoting parts, and the at least two support leg assemblies are pivotally connected to the at least two pivoting parts respectively.

28. An artificial tree, It is characterized in that The invention comprises a tree body and the supporting device according to any one of claims 1 to 27, wherein the tree body serves as the supported object and is mounted on the mounting portion.

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