Easily-unfolded structure, folding leg frame, storage box frame and table

Abstract

The invention relates to the field of pivot connection structures, in particular to an easy-to-unfold structure, a folding leg frame, a storage box frame and a table, the easy-to-unfold structure comprises a frame component and a supporting rod rotatably mounted on the frame component, an insertion part is arranged on the frame component, one end of the supporting rod is an insertion end, and the insertion end is suitable for being inserted into the insertion part; one of the inserting part and the inserting end is provided with a pivot, the other one of the inserting part and the inserting end is provided with a guide groove corresponding to the pivot, an elastic piece is arranged between the supporting rod and the frame component, when the supporting rod is in a folded state, the elastic piece is in a stretched state, and when the supporting rod is converted from the folded state to the unfolded state, the elastic piece is in a folded state. Under the elastic pulling force of the elastic piece, the inserting end of the supporting rod can be automatically inserted into the inserting part; according to the easy-to-unfold structure, through the cooperation of the pivot and the guide groove and the structural design of the elastic piece, when the supporting rod is in a folded state and external constraint is relieved, the supporting rod can be automatically aligned with the inserting part and can be automatically inserted into the inserting part.

Description

Technical Field

[0001] The present application relates to the field of pivot connection structures, and in particular to an easily deployable structure and a foldable leg frame. Background Art

[0002] A folding chair generally comprises two hinged frame members, on which a front leg rod, a rear leg rod, a front seat rod and a back rod are inserted. The front leg rod and the front seat rod are connected by an elastic cable, and the rear leg rod and the back rod are connected by an elastic cable.

[0003] The front foot rod, rear foot rod, front seat rod and back rod can be removed from the frame member and can be folded relative to the frame member. After being folded, the front foot rod and the front seat rod are pulled together by an elastic cable, and the rear foot rod and the back rod are pulled together by an elastic cable. In this state, the front foot rod, rear foot rod, front seat rod and back rod are separated from the frame member. When the folding chair is unfolded, the front foot rod, rear foot rod, front seat rod and back rod need to be connected to the corresponding connecting parts on the frame member.

[0004] Through understanding the above related technologies, when the front leg rod, rear leg rod, front seat rod and back rod of the folding chair are transformed from the folded state to the unfolded state, it is necessary to manually align the insertion ends of each rod with the plug-in part of the frame member so that they can be smoothly inserted into the frame member. The operation process of unfolding the folding chair is relatively cumbersome. Summary of the Invention

[0005] The purpose of at least one specific embodiment of the present invention is to address the defects of the prior art and provide an easily deployable structure and a foldable leg stand.

[0006] In order to achieve the above-mentioned purpose, the present application provides an easily deployable structure, comprising a frame member and a support rod rotatably mounted thereon, wherein the frame member is provided with a plug-in portion, and one end of the support rod is an insertion end, characterized in that:

[0007] The plug-in portion and the insertion end are rotatably connected via a pivot and a guide groove, wherein:

[0008] The pivot is provided at one of the plug-in portion and the insertion end, and the guide groove is provided at the other, the pivot and the guide groove are slidably engaged and the two are always connected;

[0009] The extending direction of the guide groove is consistent with the plugging direction of the support rod into the plugging portion;

[0010] The plug-in portion is provided with an escape opening for providing a rotational escape space when the insertion end is withdrawn;

[0011] An elastic member is disposed between the support rod and the frame member, and the elastic member is in a stretched energy storage state when the support rod is folded;

[0012] When external constraints are released:

[0013] (a) the contraction force of the elastic member drives the support rod to rotate around the pivot, so that the insertion end is aligned with the plug-in portion;

[0014] (b) The axial force of the elastic member drives the pivot to slide along the guide groove from the second limiting end to the first limiting end, so that the insertion end is inserted into the plug-in portion along the plug-in direction.

[0015] Furthermore, the avoidance opening is an asymmetric structure, including a first avoidance opening close to the frame component side and a second avoidance opening away from the side, and the depth of the first avoidance opening is greater than the depth of the second avoidance opening to limit the support rod to be able to rotate and fold only toward the frame component.

[0016] Furthermore, the first limiting end and the second limiting end are respectively provided at both ends of the guide groove;

[0017] When the pivot slides to the first limiting end, the insertion end is completely inserted into the plug-in portion, and the support rod is in a limited and extended state;

[0018] When the pivot slides to the second limiting end, the insertion end is released from the limiting position of the plug-in portion, and the support rod can rotate around the pivot in the avoidance opening.

[0019] Furthermore, the distance L1 from the center of the pivot to the bottom of the avoidance opening is less than the length L2 of the guide groove, so that when the insertion end is fully pulled out, the pivot reaches the second limit end, and the end face of the insertion end completely exits the plug-in portion and enters the avoidance space.

[0020] Furthermore, the elastic member is a cable, both ends of which are respectively connected to the two support rods and pass through the connecting arm of the frame component.

[0021] Furthermore, the frame component includes a rotating arm and the connecting arm connected to each other, the rotating arm is suitable for rotating, expanding and retracting around the rotating disk, and both ends of the connecting arm are suitable for connecting to the support rod.

[0022] Another easily deployable structure provided by the present application includes:

[0023] A frame member having a plug-in portion provided thereon;

[0024] a support rod rotatably mounted on the frame member, one end of which is an insertion end, the insertion end being suitable for being inserted into the plug-in portion;

[0025] A pivot is provided on one of the plug-in portion and the insertion end, and a guide groove corresponding to the pivot is provided on the other of the plug-in portion and the insertion end. The pivot and the guide groove are slidably engaged with each other, and the pivot and the guide groove that slidably engage with each other are suitable for rotatably connecting the support rod and the frame member.

[0026] The guide groove has a first assembly position and a second assembly position relative to the pivot. When the support rod is in the first assembly state, the insertion end is inserted into the plug-in portion, and the pivot slides to the first assembly position.

[0027] When the pivot slides to the second assembly position, the insertion end can rotate relative to the plug-in portion toward the first direction through the pivot, and the support rod is in the second assembly state;

[0028] When the support rod is converted from the second assembly state to the first assembly state, the insertion end can rotate in the second direction relative to the plug-in part through the pivot, and the sliding path of the pivot along the guide groove provides docking guidance for the insertion end into the plug-in part.

[0029] Furthermore, the plug-in portion is provided with an escape opening, and when the support rod is rotated from the first assembly state to the second assembly state or from the second assembly state to the first assembly state, the escape opening provides a rotation escape space for the insertion end.

[0030] Further, when the support rod is in the first assembly state, the support rod is in an expanded state relative to the frame member;

[0031] When the support rod is in the second assembly state, the support rod is in a folded and retracted state relative to the frame component.

[0032] Furthermore, one end of the guide groove is a first limiting end, and the other end is a second limiting end;

[0033] When the pivot slides to the first limiting end, it is in the first assembly position, the support rod is in the first assembly state, and the plug-in portion limits the insertion direction and rotation direction of the insertion end;

[0034] When the support rod is converted from the first assembly state to the second assembly state, the insertion end is pulled out from the plug-in portion, and the insertion end can rotate in the rotation avoidance space with the pivot as the center. The pivot slides to the second limit end of the guide groove and is in the second assembly position.

[0035] Furthermore, the number of the plug-in parts is more than two, and the number of the support rods is consistent with the number of the plug-in parts.

[0036] Furthermore, the easily deployable structure further comprises an elastic member, one end of the elastic member extends into and is connected to one of the support rods, and the other end of the elastic member extends into the interior of the frame member and extends into and is connected to the other support rod;

[0037] When the support rod is converted from the second assembly state to the first assembly state, the support rod rotates around the frame component connected to it and rotates until the insertion end is opposite to the plug-in part. Under the elastic tension of the elastic member, the insertion end of the support rod is inserted into the plug-in part.

[0038] Furthermore, the number of the avoidance openings on the plug-in portion is two, and the depth of the avoidance opening on the side close to the frame member is greater than the depth of the avoidance opening on the side away from the frame member, so as to define the first direction as the rotation direction toward the frame member and the second direction as the rotation direction away from the frame member;

[0039] When the support rod rotates toward the first direction and is in the second assembly state, the support rod tends to fit against the surface of the frame component to form a retracted state.

[0040] Furthermore, the plugging direction of the support rod relative to the plugging portion is consistent with the extending direction of the guide groove.

[0041] Furthermore, the distance between the central axis of the pivot and the bottom of the avoidance opening is smaller than the length of the guide groove, so that when the pivot slides to the second assembly position, the insertion end can rotate relative to the plug-in part in the rotation avoidance space through the pivot.

[0042] The advantageous technical effect of the easily deployable structure provided by the present application over the prior art is that: the easily deployable structure is used for the connection position between the support rod and the frame member, the insertion end of the support rod and the plug-in portion of the frame member are rotatably connected via a pivot, the insertion end of the support rod or the plug-in portion of the frame member is provided with a guide groove that slides with the pivot, and the plug-in portion is provided with an avoidance opening, when the support rod is withdrawn from the plug-in portion for a distance until the pivot slides to the second limit end of the guide groove, the support rod rotates with the plug-in portion around the pivot as the center and is in a folded state, the avoidance opening provides the avoidance space required for the insertion end to be able to rotate out of the plug-in portion, and the support rod in the folded state is in a state of rotational connection with the plug-in portion, but is not separated;

[0043] When the support rod needs to be unfolded, the support rod rotates in the opposite direction with the plug-in portion around the pivot as the center. When the insertion end of the support rod is opposite to the plug-in portion, the insertion end can be inserted into the plug-in portion. At this time, the pivot slides to the first limit end of the guide groove, and the pivot limits the support rod. When the support rod is subjected to force, it cannot be further extended into the interior of the plug-in portion. At the same time, the support rod cannot rotate relative to the plug-in portion, thereby achieving a high-strength support effect after unfolding. After the easy-to-expand structure is used, during the conversion of the support rod from the folded state to the unfolded state, there is no need for manual docking between the insertion end of the support rod and the plug-in portion of the frame member. Through the cooperation of the pivot and the guide groove, after the support rod is unfolded, its insertion end can automatically align with the plug-in portion, and the assembly between the support rod and the frame member is convenient and efficient.

[0044] In addition, an elastic member is arranged between the support rod and the frame member. When the support rod is in a folded state, the elastic member is in a stretched state. When the support rod is converted from a folded state to an unfolded state, the insertion end of the support rod will automatically be inserted into the plug-in portion under the elastic tension of the elastic member. The easy-to-expand structure is achieved through the cooperation of the pivot and the guide groove, as well as the structural design of the elastic member. When the support rod is in a folded state and is released from external constraints, the support rod can be automatically aligned with the plug-in portion and automatically inserted.

[0045] Another technical solution adopted in this application is to provide a folding leg stand, comprising:

[0046] A plurality of the above-mentioned deployable structures;

[0047] A front foot bar, a rear foot bar, a front seat bar, and a rear back bar plugged into the frame member;

[0048] a first elastic member, one end of which extends into and is connected to the front foot rod, and the other end of which extends into and is connected to the front seat rod;

[0049] One end of the second elastic member extends into and is connected to the rear foot rod, and the other end extends into and is connected to the back rod.

[0050] Furthermore, when the front foot rod and the front seat rod are folded relative to the frame member, the first elastic member is in an elastically stretched state;

[0051] When the rear foot bar and the back bar are folded relative to the frame component, the second elastic member is in an elastically stretched state.

[0052] Further, the front foot bar, the rear foot bar, the front seat bar, and the rear back bar are constructed as support bars.

[0053] The folding leg stand provided in the present application adopts the above-mentioned easy-to-expand structure. The front foot rod, rear foot rod, front seat rod and back rod of the folding leg stand can be constructed as support rods of the above-mentioned easy-to-expand structure. The front foot rod, rear foot rod, front seat rod and back rod can be freely folded or unfolded relative to the frame component. When the front foot rod, rear foot rod, front seat rod and back rod are plugged into the plug-in part on the frame component, each rod can also be automatically aligned and automatically inserted with the plug-in part on the frame component, and the assembly between each rod and the frame component is convenient and efficient.

[0054] Another technical solution adopted in this application is to provide a storage box rack, comprising:

[0055] The above-mentioned deployable structure;

[0056] Support legs plugged into the frame member;

[0057] a support block provided on the frame member;

[0058] The support block is suitable for placing a storage box.

[0059] Furthermore, the supporting feet are constructed as supporting rods of the deployable structure.

[0060] Through the above technical solution, the support legs of the storage box rack can be freely folded or unfolded relative to the frame member. When the support legs are plugged into the plug-in parts on the frame member, each support leg can also be automatically aligned and automatically inserted with the plug-in parts on the frame member. The assembly between each support leg and the frame member is convenient and efficient.

[0061] Another technical solution adopted in this application is to provide a table, comprising:

[0062] The above-mentioned deployable structure;

[0063] Lower support legs and upper support rods respectively plugged into the frame members;

[0064] a support assembly connected to the upper support rod;

[0065] A tabletop unit is arranged above the supporting assembly.

[0066] Furthermore, the support assembly includes:

[0067] A plug connector, adapted to be plugged into the end of the upper support rod;

[0068] A lower buckle plate is mounted on the plug connector;

[0069] The table top supporting rod is buckled and connected with the lower buckle plate.

[0070] Furthermore, an upper buckle plate is provided at the bottom of the table board unit, the table board support rod is supported at the bottom of the table board unit, and the upper buckle plate and the lower buckle plate are respectively buckled and connected to the table board support rod.

[0071] Furthermore, the lower supporting legs and the upper supporting rods are constructed as supporting rods of the easily deployable structure.

[0072] Through the above technical solution, the lower supporting legs and upper supporting rods of the table can be freely folded or unfolded relative to the frame component. When the lower supporting legs and upper supporting rods are transformed from a folded state to an unfolded state, the lower supporting legs and upper supporting rods can be automatically aligned and automatically inserted with the plug-in parts on the frame component. BRIEF DESCRIPTION OF THE DRAWINGS

[0073] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0074] Figure 1 Schematic diagram of the easily deployable structure in Example 1 of the present invention;

[0075] Figure 2 This is a schematic diagram of the assembly of the easily deployable structure in Example 1 of the present invention;

[0076] Figure 3 This is a schematic structural diagram of the support rod of the easily deployable structure in Example 1 of the present invention when it is pulled out;

[0077] Figure 4 This is a schematic structural diagram of the support rods of the easily deployable structure in Example 1 of the present invention when they are folded;

[0078] Figure 5 This is a schematic structural diagram of the folding leg frame in Example 2 of the present invention when it is in an unfolded state;

[0079] Figure 6 This is a schematic structural diagram of the folding leg frame in Example 2 of the present invention when it is in a folded state;

[0080] Figure 7 This is a schematic structural diagram of the folding leg frame in Example 3 of the present invention when it is in an unfolded state;

[0081] Figure 8 This is a schematic structural diagram of Example 4 of the present invention;

[0082] Figure 9 This is a diagram showing the effect of using Example 4 of the present invention;

[0083] Figure 10 This is a schematic structural diagram of Example 5 of the present invention;

[0084] Figure 11 This is a structural schematic diagram from another angle of embodiment 5 of the present invention. DETAILED DESCRIPTION

[0085] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0086] Example 1

[0087] Reference Figure 1 , Figure 2 A deployable structure 100 includes a frame member 10 and a support rod 20 rotatably mounted on the frame member 10, wherein the frame member 10 is provided with a plug-in portion 101, and one end of the support rod 20 is an insertion end 201. The support rod 20 can be inserted into the plug-in portion 101 of the frame member 10 through the insertion end 201, thereby forming an deployed state.

[0088] The support rod 20 is rotated relative to the frame member 10 when the support rod 20 is inserted into the plug-in portion 101 and the guide groove 40 is provided with the guide groove 40. When the support rod 20 is inserted into the plug-in portion 101, the support rod 20 can be rotated relative to the frame member 10 to form a folded state. After the support rod 20 is pulled out from the frame member 10, it is transformed into a folded state, or the support rod 20 is gradually rotated from the folded state to the unfolded state. The pivot 30 and the guide groove 40 that slide with each other always rotate the support rod 20 and the frame member 10. During this process, the support rod 20 does not disengage from the frame member 10. When the pivot 30 is pulled out from the frame member 10, the support rod 20 can be rotated relative to the frame member 10 to form a folded state. When relative sliding occurs between the guide groove 40 and the inserting end 201 of the support rod 20, it indicates that the distance between the inserting end 201 of the support rod 20 and the plug-in portion 101 of the frame member 10 changes, so that the support rod 20 can be folded or unfolded relative to the frame member 10, but the central axis of the plug-in portion 101 and the central axis of the inserting end 201 are in the same plane. When the central axis of the plug-in portion 101 and the central axis of the inserting end 201 form an angle relative to each other, it indicates that the support rod 20 is in a folded state. When the central axis of the plug-in portion 101 and the central axis of the inserting end 201 are in the same straight line, it indicates that the support rod 20 is in an unfolded state. Since the central axis of the plug-in portion 101 and the central axis of the inserting end 201 are in the same plane, when the support rod 20 is converted from a folded state to a unfolded state, the inserting end 201 and the plug-in portion 101 can be automatically aligned, and the support rod 20 unfolds smoothly.

[0089] Specifically, in this embodiment, the pivot 30 is mounted on the plug-in portion 101, and the guide groove 40 is provided on the insertion end 201. One end of the guide groove 40 is a first limit end 401, and the other end is a second limit end 402. The guide groove 40 has a first assembly position and a second assembly position relative to the pivot 30. When the support rod 20 is in the first assembly state (expanded state), the insertion end 201 is inserted into the plug-in portion 101, and the pivot 30 slides to the first assembly position. At this time, the pivot 30 slides to the first limit end 401, which can be referred to Figure 1 As shown;

[0090] When the pivot 30 slides to the second assembly position, the pivot 30 slides to the second limit end 402, and the insertion end 201 can rotate relative to the plug-in portion 101 in the first direction through the pivot 30, and the support rod 20 is in the second assembly state (folded and retracted state). Figure 4 As shown;

[0091] When the support rod 20 is transformed from the folded and retracted state to the unfolded state, the insertion end 201 can rotate in the second direction relative to the plug-in portion 101 through the pivot 30, and the sliding path of the pivot 30 along the guide groove 40 provides docking guidance for the insertion end 201 to be inserted into the plug-in portion 101.

[0092] Furthermore, the plug-in portion 101 is provided with an escape opening 102, and when the support rod 20 is rotated from the unfolded state to the folded state or from the folded state to the unfolded state, the escape opening 102 provides a rotational escape space for the insertion end 201;

[0093] Specifically, there are two avoidance openings 102 on the plug-in portion 101. The depth of the first avoidance opening 102a on the side close to the frame member 10 is greater than the depth of the second avoidance opening 102b on the side away from the frame member 10, so as to define the first direction as the rotation direction toward the frame member 10 and the second direction as the rotation direction away from the frame member 10, and the first direction is opposite to the second direction.

[0094] After the first direction is defined by the avoidance opening 102, when the support rod 20 rotates toward the first direction and is in the second assembly state (folded and retracted state), the support rod 20 tends to fit the surface of the frame member 10 to form a bundle shape. Figure 6 shown.

[0095] In addition, the first avoidance opening 102a with a large depth close to the side of the frame member 10 provides a larger rotation avoidance space for the support rod 20, and the folding angle of the support rod is large. On the contrary, if the support rod is rotated toward the side away from the frame member 10, the second avoidance opening 102b with a small depth cannot provide a larger avoidance space, and the folding angle of the support rod is small, which can have a fool-proof effect. The user can intuitively understand that the rotation and folding direction of the support rod 20 is toward the frame member 10. Moreover, after the support rod 20 is folded, it fits against the surface of the frame member 10 to form a bundle shape. When there are multiple support rods 20, multiple support rods 20 can be folded and fit against the surface of the frame member 10, which can reduce the volume of the entire structure after folding, making it easier to bundle and restrain.

[0096] Reference Figure 1 , Figure 2 and Figure 3 When the pivot 30 slides to the first limit end 401 of the guide groove 40, the support rod 20 is in the first assembly state (eg Figure 1As shown), at this time, the insertion end 201 of the support rod 20 extends into the plug-in portion 101, and the support rod 20 is stopped relative to the plug-in portion 101. Specifically, in this state, the pivot 30 limits the support rod 20, and the support rod 20 cannot be further extended into the interior of the plug-in portion 101 when a force is applied. At the same time, the support rod 20 cannot rotate relative to the plug-in portion 101, thereby achieving a high-strength support effect after deployment;

[0097] When the pivot 30 slides to the second limit end 402 of the guide groove 40, the support rod 20 is in the second assembly state (eg Figure 4 As shown), the insertion end 201 of the support rod 20 is pulled out from the plug-in portion 101, and the insertion end 201 can rotate in the avoidance space provided by the avoidance opening 102 with the pivot 30 as the center. The support rod 20 can rotate relative to the frame member 10 until the circumference of the support rod 20 contacts the bottom surface of the avoidance opening 102, and the support rod 20 is in a folded state relative to the frame member 10.

[0098] Further, refer to Figure 3 As shown, in this embodiment, the distance L1 between the center of the pivot 30 and the bottom of the avoidance opening 102 is smaller than the length L2 of the guide groove 40. The advantage of this size design is that when the insertion end 201 of the support rod 20 is fully inserted into the plug-in portion 101, the pivot 30 is located at the first limit end 401 of the guide groove 40. When the insertion end 201 of the support rod 20 is fully pulled out from the plug-in portion 101, the pivot 30 is located at the second limit end 402 of the guide groove 40. When L2 is greater than L1, the end face of the insertion end 201 can be located in the space where the avoidance opening 102 is located after the insertion end 201 of the support rod 20 is fully pulled out from the plug-in portion 101. In this case, the insertion end 201 can rotate in the space provided by the avoidance opening 102 with the pivot 30 as the center.

[0099] Furthermore, in this embodiment, the number of the plug-in portions 101 on the frame member 10 is more than two, and the number of the support rods 20 plugged into the frame member 10 is more than two, so that multiple support rods 20 can be conveniently plugged into the frame member 10 .

[0100] Furthermore, an elastic member 50 is disposed between the support rod 20 and the frame member 10. The elastic member 50 is preferably a cable. One end of the elastic member 50 extends into one support rod 20 and is connected thereto, and the other end of the elastic member 50 extends into the interior of the frame member 10 and extends into the other support rod 20 and is connected thereto.

[0101] Specifically, refer to Figure 5 As shown, the frame member 10 includes a rotating arm 10 b and a connecting arm 10 a connected to each other. The rotating arm 10 b is suitable for rotating around a rotating disk to expand and retract, and both ends of the connecting arm 10 a are suitable for connecting to the support rod 20 .

[0102] The end of the support rod 20 is generally installed with a buckle cover 60, and the end of the elastic member 50 extends into the interior of the support rod 20 and is connected to the buckle cover 60. Taking the two support rods 20 installed on the frame member 10 as an example, after the elastic member 50 is installed between the two support rods 20, the two ends of the elastic member 50 respectively play a pulling role on the two support rods 20. When the support rod 20 is not plugged into the frame member 10, the support rod 20 will also be pulled by the elastic member 50. When the support rod 20 is plugged into the plug-in portion 101, the elastic member 50 is in a natural or stretched state, and the support rod 20 is relatively close to the frame member 10. When the frame member 10 is in a rotational folding state, the elastic member 50 is in an elastically stretched state. When the support rod 20 is converted from a folded state to an unfolded state, under the elastic tension of the elastic member 50, under the sliding cooperation of the pivot 30 and the guide groove 40, the insertion end 201 of the support rod 20 will be automatically inserted into the plug-in portion 101. The easy-to-expand structure is achieved through the cooperation of the pivot 30 and the guide groove 40, as well as the structural design of the elastic member 50. When the support rod 20 is in a folded state and is released from external constraints, the support rod 20 can be automatically aligned with the plug-in portion 101 and automatically inserted.

[0103] The present application will be described in detail below in conjunction with the specific usage of the deployable structure 100 .

[0104] Reference Figure 1 , Figure 2 , Figure 4 The easily deployable structure 100 of the present application includes a folded state and an unfolded state. In the folded state, the support rod 20 is folded relative to the frame member 10. In the unfolded state, the support rod 20 is inserted into the plug-in portion 101 of the frame member 10. It should be noted that when the support rod 20 is in the folded state relative to the frame member 10, the elastic member 50 is in a stretched state, which will generate tension on the support rod 20. Therefore, the frame member 10 will be provided with a restraint belt (not shown) to bind and fix the support rod 20.

[0105] Specifically, during the process of the easily deployable structure 100 being transformed from a folded state to an unfolded state, the support rod 20 rotates around the frame member 10 connected thereto and rotates until the insertion end 201 is opposite to the plug-in portion 101. At this time, the elastic member 50 is in a stretched state, and under the elastic tension of the elastic member 50, the insertion end 201 of the support rod 20 is automatically inserted into the plug-in portion 101.

[0106] Furthermore, when the easily deployable structure 100 is in the folded state, the pivot 30 is located at the second limit end 402 , and when the easily deployable structure 100 is in the unfolded state, the pivot 30 is located at the first limit end 401 ;

[0107] When the easily deployable structure 100 is converted from a folded state to an unfolded state, under the elastic tension of the elastic member 50, the support rod 20 rotates around the frame member 10 with the pivot 30 as the center until the insertion end 201 of the support rod 20 is opposite to the plug-in portion 101. At the same time, under the elastic tension of the elastic member 50, the insertion end 201 of the support rod 20 is inserted into the plug-in portion 101. During this process, the pivot 30 slides from the second limit end 402 to the first limit end 401 relative to the guide groove 40.

[0108] When the easily deployable structure 100 is converted from the unfolded state to the folded state, the pivot 30 slides from the first limit end 401 to the second limit end 402 relative to the guide groove 40, the support rod 20 rotates around the frame 10 component with the pivot 30 as the center, the elastic member 50 is in a stretched state, and the avoidance opening 102 provides the avoidance space required for rotation to the insertion end 201.

[0109] In summary, the easily deployable structure 100 is used for the connection position of the support rod 20 and the frame member 10, and the insertion end 201 of the support rod 20 is rotatably connected to the plug-in portion 101 of the frame member 10 via the pivot 30, and the insertion end 201 of the support rod 20 or the plug-in portion 101 of the frame member 10 is provided with a guide groove 40 that slidably cooperates with the pivot 30, and the plug-in portion 101 is provided with an avoidance opening 102. When the support rod 20 is pulled out of the plug-in portion 101 for a distance until the pivot 30 slides to the second limit end 401 of the guide groove 40, the support rod 20 rotates with the plug-in portion 101 around the pivot 30 and is in a folded state, and the avoidance opening 102 provides the insertion end 201 with the avoidance space required to rotate out of the plug-in portion 101, and the support rod 20 in the folded state is in a state of rotational connection with the plug-in portion 101, but not separated;

[0110] When the support rod 20 needs to be unfolded, the support rod 20 rotates in the opposite direction with the plug-in portion 101 around the pivot 30 as the center. When the insertion end 201 of the support rod 20 is opposite to the plug-in portion 101, the insertion end 201 can be inserted into the plug-in portion 101. At this time, the pivot 30 slides to the first limit end 401 of the guide groove 40, and the pivot 30 limits the support rod 20. When the support rod 20 is subjected to force, it cannot be further extended into the interior of the plug-in portion 101. At the same time, the support rod 20 cannot rotate relative to the plug-in portion 101, thereby achieving a high-strength support effect after unfolding. After the support rod 20 is used, during the conversion of the support rod 20 from the folded state to the unfolded state, there is no need for manual docking between the insertion end 201 of the support rod 20 and the plug-in portion 101 of the frame member 10. Through the cooperation of the pivot 30 and the guide groove 40, after the support rod 20 is unfolded, its insertion end 201 can automatically align with the plug-in portion 101, and the assembly between the support rod 20 and the frame member 10 is convenient and efficient.

[0111] In addition, an elastic member 50 is arranged between the support rod 20 and the frame member 10. When the support rod 20 is in a folded state, the elastic member 50 is in a stretched state. When the support rod 20 is converted from a folded state to an unfolded state, under the elastic tension of the elastic member 50, the insertion end 201 of the support rod 20 will be automatically inserted into the plug-in portion 101. The easy-to-expand structure is achieved through the cooperation of the pivot 30 and the guide groove 40, as well as the structural design of the elastic member 50. When the support rod 20 is in a folded state and is released from external constraints, the support rod 20 can be automatically aligned with the plug-in portion 101 and automatically inserted.

[0112] Example 2

[0113] Reference Figure 5 , Figure 6 , based on the same technical concept, the embodiment of the present application provides a folding leg stand 200, comprising a plurality of frame members 10 in the above embodiment 1, the frame members 10 being hinged to each other;

[0114] A front foot bar 2010, a rear foot bar 2020, a front seat bar 2030, and a back bar 2040 plugged into the frame member 10;

[0115] A first cable 205, one end of which extends into and is connected to the front foot rod 2010, and the other end of which extends into and is connected to the front seat rod 2030;

[0116] One end of the second cable 206 extends into and is connected to the rear foot bar 2020 , and the other end extends into and is connected to the back bar 2040 .

[0117] When the front foot bar 2010 and the front seat bar 2030 are folded relative to the frame component 10, the first cable 205 is in an elastically stretched state; when the rear foot bar 2020 and the back bar 2040 are folded relative to the frame component 10, the second cable 206 is in an elastically stretched state.

[0118] In this embodiment, the folding leg stand 200 adopts the easily deployable structure 100 in the above-mentioned embodiment 1. The front foot rod 2010, the rear foot rod 2020, the front seat rod 2030, and the back rod 2040 of the folding leg stand 200 are constructed as the support rod 20 in the above-mentioned embodiment 1. The front foot rod 2010, the rear foot rod 2020, the front seat rod 2030, and the back rod 2040 are connected to the frame member 10 using the easily deployable structure 100 in the above-mentioned embodiment 1. Each rod can be freely folded or unfolded relative to the frame member 10. When the front foot rod 2010, the rear foot rod 2020, the front seat rod 2030, and the back rod 2040 are plugged into the plug-in portion 101 on the frame member 10, each rod can also achieve automatic alignment and automatic insertion with the plug-in portion 101 on the frame member 10, and the assembly between each rod and the frame member 10 is convenient and efficient.

[0119] It should be noted that the length of the back rod 2040 is generally greater than the length of other rods. Therefore, the back rod 2040 can be formed by connecting multiple back rod units 2041. When the back rod 2040 is folded and stored, the multiple back rod units 2041 can be separated and folded.

[0120] Example 3

[0121] Reference Figure 7 Based on the same technical concept, the embodiment of the present application provides a folding leg stand 200. The difference between this embodiment and embodiment 2 is that, in this embodiment, the front foot rod 2010 and the rear foot rod 2020 are connected to the frame component 10 using the easily deployable structure 100 in the above-mentioned embodiment 1, and the front seat rod 2030 and the back rod 2040 are connected to the frame component 10 by ordinary plug-in method.

[0122] Example 4

[0123] Reference Figure 8 , Figure 9 Based on the same technical concept, an embodiment of the present application provides a storage box rack 300, which includes the easily deployable structure 100 of the above embodiment, a support leg 310 inserted into the frame member 10, and a support block 320 provided on the frame member 10, wherein the surface of the support block 320 is a friction surface 330, and the support block 320 is suitable for placing a storage box 340 on it. The friction surface 330 contacts the bottom surface of the storage box 340 to provide an anti-slip effect. The support leg 310 is constructed as the support rod 20 of the easily deployable structure 100.

[0124] After adopting the easily deployable structure 100, the support legs 310 of the storage box rack 300 can be freely folded or unfolded relative to the frame member 10. When the support legs 310 are plugged into the plug-in parts on the frame member 10, each support leg 310 can also be automatically aligned and automatically inserted with the plug-in parts on the frame member 10, and the assembly between each support leg 310 and the frame member 10 is convenient and efficient.

[0125] Example 5

[0126] Reference Figure 10 , Figure 11 Based on the same technical concept, an embodiment of the present application provides a table 400, which includes the easily deployable structure 100 in the above embodiment, lower support legs 410 and upper support rods 420 respectively plugged into the frame member 10, a support assembly 430 connected to the upper support rod 420, and a table top unit 440 arranged above the support assembly 430.

[0127] The support assembly 430 includes:

[0128] The plug connector 4301 can be plugged into the end of the upper support rod 420;

[0129] The lower buckle plate 4302 is mounted on one end of the plug connector 4301;

[0130] The table support rod 4303 is buckled and connected to the lower buckle plate 4302.

[0131] Furthermore, an upper buckle plate 450 is provided at the bottom of the table panel unit 440. When the table is assembled, the lower supporting leg 410 and the upper supporting rod 420 are respectively plugged into the plug-in parts on the frame member 10, the plug connector 4301 is plugged into the end of the upper supporting rod 420, the table panel support rod 4303 is snap-fitted and connected with the lower buckle plate 4302 on the plug connector 4301, the table panel support rod 4303 is supported on the bottom of the table panel unit 440, and the upper buckle plate 450 at the bottom of the table panel unit 440 is snap-fitted and connected with the table panel support rod 4303.

[0132] In this embodiment, the lower supporting legs 410 and the upper supporting rods 420 of the table 400 can be freely folded or unfolded relative to the frame member 10. When the lower supporting legs 410 and the upper supporting rods 420 are transformed from a folded state to an unfolded state, the lower supporting legs 410 and the upper supporting rods 420 can be automatically aligned and automatically inserted with the plug-in parts on the frame member 10.

[0133] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An easily deployable structure comprising a frame member and a support rod rotatably mounted thereon, wherein the frame member is provided with a plug-in portion and one end of the support rod is an insertion end, characterized in that: The plug-in portion and the insertion end are rotatably connected via a pivot and a guide groove, wherein: The pivot is provided at one of the plug-in portion and the insertion end, and the guide groove is provided at the other, the pivot and the guide groove are slidably engaged and the two are always connected; The extending direction of the guide groove is consistent with the plugging direction of the support rod into the plugging portion; The plug-in portion is provided with an escape opening for providing a rotational escape space when the insertion end is withdrawn; A bendable elastic member is disposed between the support rod and the frame member, and the elastic member is in a stretched energy storage state when the support rod is folded; When external constraints are released: (a) the contraction force of the elastic member drives the support rod to rotate around the pivot, so that the insertion end is aligned with the plug-in portion; (b) The axial force of the elastic member drives the pivot to slide along the guide groove from the second limiting end to the first limiting end, so that the insertion end is inserted into the plug-in portion along the plug-in direction.

2. The deployable structure according to claim 1, characterized in that: The avoidance opening is an asymmetric structure, including a first avoidance opening close to the frame component side and a second avoidance opening away from the side. The depth of the first avoidance opening is greater than the depth of the second avoidance opening, so as to limit the support rod to be able to rotate and fold only toward the frame component.

3. The deployable structure according to claim 1, characterized in that: The first limiting end and the second limiting end are respectively provided at both ends of the guide groove; When the pivot slides to the first limiting end, the insertion end is completely inserted into the plug-in portion, and the support rod is in a limited and extended state; When the pivot slides to the second limiting end, the insertion end is released from the limiting position of the plug-in portion, and the support rod can rotate around the pivot in the avoidance opening.

4. The deployable structure according to claim 3, characterized in that: The distance L1 from the center of the pivot to the bottom of the avoidance opening is less than the length L2 of the guide groove, so that when the insertion end is fully withdrawn, the pivot reaches the second limit end, and the end face of the insertion end completely exits the plug-in portion and enters the avoidance space.

5. The deployable structure according to claim 1, characterized in that: The elastic member is a cable, both ends of which are respectively connected to the two support rods and pass through the connecting arm of the frame component.

6. The deployable structure according to claim 5, characterized in that: The frame component includes a rotating arm and the connecting arm connected to each other. The rotating arm is suitable for rotating, expanding and retracting around the rotating disk. Both ends of the connecting arm are suitable for connecting to the support rod.

7. An easily deployable structure, characterized in that: include: A frame member having a plug-in portion provided thereon; a support rod rotatably mounted on the frame member, one end of which is an insertion end, the insertion end being suitable for being inserted into the plug-in portion; A pivot is provided on one of the plug-in portion and the insertion end, and a guide groove corresponding to the pivot is provided on the other of the plug-in portion and the insertion end. The pivot and the guide groove are slidably engaged with each other, and the pivot and the guide groove that slidably engage with each other are suitable for rotatably connecting the support rod and the frame member. The guide groove has a first assembly position and a second assembly position relative to the pivot. When the support rod is in the first assembly state, the insertion end is inserted into the plug-in portion, and the pivot slides to the first assembly position. When the pivot slides to the second assembly position, the insertion end can rotate relative to the plug-in portion toward the first direction through the pivot, and the support rod is in the second assembly state; When the support rod is converted from the second assembly state to the first assembly state, the insertion end can be rotated relative to the plug-in part in a second direction opposite to the first direction through the pivot, and the sliding path of the pivot along the guide groove provides docking guidance for the insertion end into the plug-in part.

8. The deployable structure according to claim 7, characterized in that: The plug-in portion is provided with an escape opening, and when the support rod is rotated from the first assembly state to the second assembly state or from the second assembly state to the first assembly state, the escape opening provides a rotation escape space for the insertion end.

9. The deployable structure according to claim 7, characterized in that: When the support rod is in the first assembly state, the support rod is in an expanded state relative to the frame member; When the support rod is in the second assembly state, the support rod is in a folded and retracted state relative to the frame component.

10. The deployable structure according to claim 8, characterized in that: One end of the guide groove is a first limiting end, and the other end is a second limiting end; When the pivot slides to the first limiting end, it is in the first assembly position, the support rod is in the first assembly state, and the plug-in portion limits the insertion direction and rotation direction of the insertion end; When the support rod is converted from the first assembly state to the second assembly state, the insertion end is pulled out from the plug-in portion, and the insertion end can rotate in the rotation avoidance space with the pivot as the center. The pivot slides to the second limit end of the guide groove and is in the second assembly position.

11. The deployable structure according to claim 7, characterized in that: The number of the plug-in parts is more than two, and the number of the support rods is consistent with the number of the plug-in parts.

12. The deployable structure according to claim 11, characterized in that: It also includes an elastic member, one end of which extends into one of the support rods and is connected thereto, and the other end of which extends into the interior of the frame member and into the other support rod and is connected thereto; When the support rod is converted from the second assembly state to the first assembly state, the support rod rotates around the frame component connected to it and rotates until the insertion end is opposite to the plug-in part. Under the elastic tension of the elastic member, the insertion end of the support rod is inserted into the plug-in part.

13. The deployable structure according to claim 8, characterized in that: There are two avoidance openings on the plug-in portion, and the depth of the avoidance opening on the side close to the frame member is greater than the depth of the avoidance opening on the side away from the frame member, so as to define the first direction as the rotation direction toward the frame member and the second direction as the rotation direction away from the frame member; When the support rod rotates toward the first direction and is in the second assembly state, the support rod tends to fit against the surface of the frame component to form a retracted state.

14. The deployable structure according to claim 7, characterized in that: The plugging direction of the support rod relative to the plugging portion is consistent with the extending direction of the guide groove.

15. The deployable structure according to claim 13, characterized in that: The distance between the central axis of the pivot and the bottom of the avoidance opening is smaller than the length of the guide groove, so that when the pivot slides to the second assembly position, the insertion end can rotate relative to the plug-in part in the rotation avoidance space through the pivot.

16. A folding leg stand comprising: A plurality of deployable structures according to any one of claims 1 to 15; A front foot rod, a rear foot rod, a front seat rod, and a rear back rod plugged into the frame member; a first elastic member, one end of which extends into and is connected to the front foot rod, and the other end of which extends into and is connected to the front seat rod; One end of the second elastic member extends into and is connected to the rear foot rod, and the other end extends into and is connected to the back rod.

17. The folding leg stand according to claim 16, characterized in that: When the front foot rod and the front seat rod are folded relative to the frame member, the first elastic member is in an elastically stretched state; When the rear foot bar and the back bar are folded relative to the frame component, the second elastic member is in an elastically stretched state.

18. The folding leg stand according to claim 16, characterized in that: The front foot rod, the rear foot rod, the front seat rod, and the back rod are constructed as support rods of the easily deployable structure.

19. A storage box rack, characterized in that: include: The deployable structure according to any one of claims 1 to 15; Support legs plugged into the frame member; a support block provided on the frame member; The support block is suitable for placing a storage box.

20. The storage box rack according to claim 19, wherein: The supporting feet are configured as supporting rods of the deployable structure.

21. A table, characterized in that: include: The deployable structure according to any one of claims 1 to 15; Lower support legs and upper support rods respectively plugged into the frame members; a support assembly connected to the upper support rod; A tabletop unit is arranged above the supporting assembly.

22. The table according to claim 21, characterized in that The support assembly comprises: A plug connector, adapted to be plugged into the end of the upper support rod; A lower buckle plate is mounted on the plug connector; The table top supporting rod is buckled and connected with the lower buckle plate.

23. The table according to claim 22, characterized in that An upper buckle plate is provided at the bottom of the table top unit, the table top supporting rod is supported at the bottom of the table top unit, and the upper buckle plate and the lower buckle plate are respectively buckled and connected with the table top supporting rod.

24. The table according to claim 21, characterized in that The lower supporting legs and the upper supporting rods are configured as supporting rods of the deployable structure.

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