Rotary folding structure, folding chair, storage box frame and table

Abstract

The invention relates to the field of folding structures, and particularly discloses a rotary folding structure, a folding chair, a storage box frame and a table, and the folding structure comprises a first frame component, a second frame component and a locking assembly mounted on the first frame component or the second frame component; wherein the first frame component comprises a first rotating disc and a first rotating arm; the second frame component comprises a second rotating disc and a second rotating arm; the first rotating disc is rotationally connected with the second rotating disc; the locking assembly comprises a triggering piece and a locking piece, the triggering piece is installed on the first rotating arm or the second rotating arm, and the locking piece is suitable for limiting the rotating angle of the first rotating disc and the rotating angle of the second rotating disc; and after the triggering piece is triggered, the locking piece can be linked, so that the limiting of the locking piece on the first rotating disc and the second rotating disc is relieved. No matter the whole folding structure is unfolded or folded, both the first rotating arm and the second rotating arm can be stressed, and the problem that stress is not uniform or folding is not smooth does not exist.

Description

Technical Field

[0001] The present invention relates to the field of foldable structures, and in particular to a rotating foldable structure and a folding chair, a storage box rack, and a table. 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] In order to facilitate the folding of the folding chair, the two frame members can be relatively expanded and folded. The frame member generally includes a rotating disk and a rotating arm. The rotating disks of the two frame members are rotatably connected. According to the understanding of relevant technologies, the folding locks of some folding chairs are generally installed on the rotating disk. When the folding chair is folded, one hand of the person needs to press the locking member on the rotating disk to unlock the locking state of the rotating arm, and the other hand of the person rotates the unlocked rotating arm to achieve the purpose of folding the folding chair. This method will make the folding operation of the folding chair not convenient, because when the folding chair is folded in this way, only one rotating arm is stressed and the other rotating arm is not stressed. When the two rotating arms are relatively folded, there is a problem of uneven force, which makes the folding of the folding chair prone to problems.

[0004] Similarly, related structures such as storage boxes and tables with folding structures will also have the above technical problems when they are folded. 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 a rotating and folding structure and a folding chair.

[0006] In order to achieve the above object, the technical solution adopted by the present invention is as follows:

[0007] A rotating and folding structure, comprising:

[0008] The first rotating member and the second rotating member are connected to each other via a rotating shaft so as to be rotatable relative to each other;

[0009] a first restraining portion, disposed on the first rotating member;

[0010] a second restraining portion, disposed on the second rotating member;

[0011] A resiliently resetting locking body, wherein

[0012] In the deployed state, the first restraining portion and the second restraining portion are coaxial in space to form a circumferentially closed restraining hole, and the locking body is driven by elastic force to fit into the restraining hole and form circumferential interference with the inner wall of the restraining hole to prevent the first rotating member and the second rotating member from rotating relative to each other;

[0013] In the folded state, the locking body is disengaged from the constraint hole, the first rotating member and the second rotating member can rotate relative to each other around the rotating shaft, and the locking body is elastically abutted against the outer peripheral surface of the first rotating member or the second rotating member.

[0014] Furthermore, the embedding movement direction of the locking body is perpendicular to the axial direction of the rotating shaft.

[0015] Furthermore, in the folded state, the elastic force always causes the locking body to have a movement tendency toward the radial direction of the rotating shaft.

[0016] Furthermore, in the folded state, the first restraining portion and the second restraining portion are misaligned, and during the transition from the folded state to the expanded state, the locking body is continuously pressed against the outer circumference of the first rotating member or the second rotating member by the elastic force;

[0017] When the first rotating member and the second rotating member rotate relative to each other to a predetermined angle, the spatial positions of the first constraint portion and the second constraint portion are aligned, automatically forming the circumferentially closed constraint hole. Driven by elastic force, the locking body is embedded in the constraint hole and forms circumferential interference with the inner wall of the constraint hole to complete rotation locking.

[0018] Furthermore, in the expanded state, the first restraining portion and the second restraining portion are spatially coaxial, and during the transition from the expanded state to the folded state, a radial unlocking external force is applied to the locking body to overcome the elastic force and cause the locking body to exit the restraining hole;

[0019] The first rotating member and the second rotating member obtain relative rotational freedom around the rotation axis. During the relative rotation, the first restraining portion and the second restraining portion are spatially misaligned, causing the restraining hole to decompose and disappear.

[0020] After the unlocking external force is removed, the locking body is driven by the elastic force to abut against the outer peripheral surface of the first rotating member or the second rotating member to maintain a non-interference state.

[0021] Another rotating and folding structure provided by the present application includes:

[0022] A first rotating disk comprising a first rotating contact surface and a first limiting groove provided on the first rotating contact surface;

[0023] a second rotating disk comprising a second rotating contact surface opposite to the first rotating contact surface and a second limiting groove provided on the second rotating contact surface;

[0024] A pin connecting the first rotating disk and the second rotating disk to achieve relative rotation between the two;

[0025] A locking assembly comprising a locking pin, an elastic member, and a locking limiter provided at an end of the locking pin;

[0026] Wherein, the first rotating disk and the second rotating disk have a first position and a second position relative to each other;

[0027] In the first position, the first limiting groove and the second limiting groove are coaxial to form a circumferentially closed limiting hole, and the locking limiting portion extends into the limiting hole under the elastic force of the elastic member and forms a circumferential interference with the inner wall of the limiting hole to prevent the rotating disk from rotating relative to each other;

[0028] In the second position, the locking limit portion is disengaged from the limiting hole, the first rotating contact surface and the second rotating contact surface can rotate relative to each other around the pin shaft, and the locking limit portion abuts against the outer circumference of the first rotating disk or the second rotating disk when resetting.

[0029] Furthermore, the first rotating disk is fixedly connected to the first rotating arm, and the second rotating disk is fixedly connected to the second rotating arm, wherein the first position and the second position are determined by the relative positions of the first rotating arm and the second rotating arm.

[0030] Furthermore, after the locking limit portion is separated from the limit hole, the end portion thereof is continuously acted upon by the elastic force of the elastic member and abuts against the outer peripheral surface of the first rotating disk or the second rotating disk.

[0031] Furthermore, the locking pin and the elastic member of the locking assembly are both installed in the inner cavity of the first rotating arm, and the locking pin is adapted to be actuated by a trigger member movably installed on the outer side of the first rotating arm; or,

[0032] The locking pin and the elastic member of the locking assembly are both installed in the inner cavity of the second rotating arm, and the locking pin is suitable for being actuated by a trigger member movably installed on the outer side of the second rotating arm.

[0033] Furthermore, the trigger is located at the end gripping area of ​​the first rotating arm or the second rotating arm;

[0034] The trigger member is configured to be triggered when a user grips the end grip area to rotate the first rotating arm or the second rotating arm.

[0035] Further, the triggering member is a sliding sleeve;

[0036] The sliding sleeve is sleeved on the first rotating arm or the second rotating arm and is connected to the locking pin through a linkage pin.

[0037] Furthermore, the triggering member is a trigger;

[0038] One end of the trigger is hinged to the first rotating arm or the second rotating arm through a rotating pin, and the other end extends from the inner cavity of the first rotating arm or the second rotating arm and is connected to the locking pin through a connecting piece.

[0039] The advantageous technical effect of the folding structure provided by the present application compared with the prior art is that: the locking assembly of the rotating folding structure includes a trigger member and a locking member, the trigger member being installed in the end gripping area of ​​the first rotating arm or the second rotating arm, and when the folding structure is converted from the deployed state to the folded state, a person's hand holds the gripping area at one end of the first rotating arm and the second rotating arm respectively, and after the person touches the trigger member, the trigger member is linked to the locking member, and the locking action of the first rotating disk and the second rotating disk by the locking member is released, and the person manually rotates the first rotating arm and the second rotating arm and moves them closer to each other until the first rotating arm and the second rotating arm are in contact with each other. Whether the entire folding structure is in the process of deployment or folding, the person's hands can be respectively held at the end gripping areas of the first rotating arm and the second rotating arm. During the entire operation process, the ends of the first rotating arm and the second rotating arm are respectively held by one hand of the human body, and both the first rotating arm and the second rotating arm can be subjected to force, and there will be no problems of uneven force or unsmooth folding.

[0040] Another technical solution adopted in this application is to provide a folding chair, comprising:

[0041] The aforementioned rotating and retracting structure;

[0042] A front foot rod, a rear foot rod, a front seat rod, and a rear back rod are respectively plugged into the first rotating arm and the second rotating arm;

[0043] a first cable, 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;

[0044] a second cable, one end of which extends into and is connected to the rear foot bar, and the other end of which extends into and is connected to the back bar;

[0045] The four corners of the chair pocket are supported by two front seat rods and two back rods.

[0046] Through the above technical solution, after the folding chair adopts the above rotating and folding structure, when the entire folding chair is folded and unfolded, the ends of the first rotating arm and the second rotating arm are respectively grasped by a single hand of the human body, the force is evenly applied, and the folding and folding are smooth.

[0047] Another technical solution adopted in this application is to provide a storage box rack, comprising:

[0048] The aforementioned rotating and retracting structure;

[0049] Support legs respectively plugged into the first rotating arm and the second rotating arm;

[0050] Support blocks provided on surfaces of the first rotating arm and the second rotating arm;

[0051] The support block is suitable for placing the storage box, and the surface of the support block is provided with a friction surface, which can play an anti-slip role when the storage box is placed.

[0052] Through the above technical solution, the storage box rack can be folded and unfolded when in use. When folding and unfolding, the ends of the first rotating arm and the second rotating arm are respectively held by a single hand of the human body, and the force is evenly applied, and the folding and unfolding are smooth.

[0053] Another technical solution adopted in this application is to provide a table, comprising:

[0054] The aforementioned rotating and retracting structure;

[0055] A lower supporting foot and an upper supporting rod respectively plugged into the first rotating arm and the second rotating arm;

[0056] a support assembly connected to the upper support rod;

[0057] A tabletop unit is arranged above the supporting assembly.

[0058] Furthermore, the support assembly includes:

[0059] A plug connector, adapted to be plugged into the end of the upper support rod;

[0060] A lower buckle plate is mounted on the plug connector;

[0061] The table top supporting rod is buckled and connected with the lower buckle plate.

[0062] 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.

[0063] Through the above technical solution, the table consists of a detachable table top unit, a support assembly, a folding structure, a lower support leg and an upper support rod. The folding structure constitutes the main support frame of the table. When the folding structure is folded and unfolded, the ends of the first rotating arm and the second rotating arm are respectively held by a single hand of the human body, so the force is evenly distributed and the folding is smooth. BRIEF DESCRIPTION OF THE DRAWINGS

[0064] 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.

[0065] Figure 1 Schematic diagram of the foldable structure in Example 1 of the present invention in an expanded state;

[0066] Figure 2 is a schematic diagram of the foldable structure in embodiment 1 of the present invention in a folded state;

[0067] Figure 3 for Figure 1 Explosion diagram of

[0068] Figure 4 for Figure 1 Schematic top view of

[0069] Figure 5 for Figure 4 Schematic diagram of the cross section along line AA;

[0070] Figure 6 for Figure 2 Explosion diagram of

[0071] Figure 7 for Figure 2 Explosion diagram from another angle;

[0072] Figure 8 It is a partial cross-sectional schematic diagram of the folded structure;

[0073] Figure 9 This is a diagram showing the force applied to the foldable structure of the present invention when folded;

[0074] Figure 10 is a schematic diagram of the foldable structure in the expanded state in Example 2 of the present invention;

[0075] Figure 11 is a schematic diagram of the foldable structure in the folded state in Example 2 of the present invention;

[0076] Figure 12 for Figure 10 A structural diagram from another angle;

[0077] Figure 13 for Figure 10 Explosion diagram of

[0078] Figure 14 for Figure 10 Schematic top view of

[0079] Figure 15 for Figure 14 Schematic diagram of the cross section along line BB;

[0080] Figure 16 for Figure 11 Explosion diagram of

[0081] Figure 17 for Figure 11 Explosion diagram from another angle;

[0082] Figure 18 This is a partial cross-sectional diagram of the foldable structure after folding in Example 2 of the present invention;

[0083] Figure 19 This is a force diagram illustrating the foldable structure when folded in Example 2 of the present invention;

[0084] Figure 20 This is a schematic structural diagram of a folding chair in Example 3 of the present invention;

[0085] Figure 21 Schematic diagram of the structure of the frame of the folding chair in Example 3 of the present invention;

[0086] Figure 22 This is a schematic structural diagram of the folding chair after the frame is folded in Example 3 of the present invention;

[0087] Figure 23 This is a schematic structural diagram of the folding chair frame in Example 3 of the present invention when it is folded and stored;

[0088] Figure 24 Schematic diagram of the easily deployable structure in Example 3 of the present invention;

[0089] Figure 25 This is a schematic diagram of the assembly of the easily deployable structure in Example 3 of the present invention;

[0090] Figure 26 This is a schematic structural diagram of the support rod of the easily deployable structure in Example 3 of the present invention when it is pulled out;

[0091] Figure 27 This is a schematic structural diagram of the support rods of the easily deployable structure in Example 3 of the present invention when they are folded;

[0092] Figure 28 This is a schematic structural diagram of Example 4 of the present invention;

[0093] Figure 29 This is a diagram showing the effect of using Example 4 of the present invention;

[0094] Figure 30 This is a schematic structural diagram of Example 5 of the present invention;

[0095] Figure 31 This is a structural schematic diagram from another angle of embodiment 5 of the present invention. DETAILED DESCRIPTION

[0096] 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.

[0097] Example 1

[0098] Reference Figure 1 , Figure 2 , Figure 3 , a rotating and folding structure 100, comprising a first frame member 10, a second frame member 20 rotatably connected to the first frame member 10, and a locking assembly 30 mounted on the first frame member 10 or the second frame member 20;

[0099] The first frame member 10 includes a first rotating disk 101 and a first rotating arm 102 fixedly connected to the first rotating disk 101;

[0100] The second frame member 20 includes a second rotating disk 201 and a second rotating arm 202 fixedly connected to the second rotating disk 201;

[0101] The first rotating disk 101 is rotatably connected to the second rotating disk 201 via a rotating shaft, such as a pin 40;

[0102] Furthermore, the locking assembly 30 includes a locking pin 301 movably disposed in the inner cavity of the first rotating arm 102 or the second rotating arm 202, a fixing pin 302 fixedly connected to the first rotating arm 102 or the second rotating arm 202 and penetrating the locking pin 301, a spring 303 sleeved on the outer side of the locking pin 301 and connected to the fixing pin 302 at one end and abutting against the locking pin 301 at the other end, a linkage pin 304 penetrating the locking pin 301, and a sliding sleeve 305 sleeved on the first rotating arm 102 or the second rotating arm 202 and fixedly connected to the linkage pin 304;

[0103] The sliding sleeve 305 is configured as a trigger member, which is installed on the first rotating arm 102 or the second rotating arm 202. The locking pin 301 is configured as a locking member. Under normal circumstances, the locking member is used to limit the rotation angle of the first rotating disk 101 and the second rotating disk 201.

[0104] After the trigger is triggered, the locking member can be linked through the linkage pin 304 so that the locking member releases the restriction of the first rotating disk 101 and the second rotating disk 201;

[0105] A locking limit portion 306 is provided on the locking pin 301 . The locking limit portion 306 is close to the first rotating disk 101 and the second rotating disk 201 and can limit the rotation angle of the first rotating disk 101 and the second rotating disk 201 .

[0106] Furthermore, a guide groove 307 is provided on the locking pin 301, the fixing pin 302 passes through the guide groove 307, a sliding groove 308 is provided on the first rotating arm 102 or the second rotating arm 202, and the linkage pin 304 slides in cooperation with the sliding groove 308, wherein the guide groove 307 extends along the length direction of the locking pin 301, and the sliding groove 308 extends along the length direction of the first rotating arm 102 or the second rotating arm 202.

[0107] Further, refer to Figure 4-Figure 8 The first rotating disk 101 is provided with a first rotating contact surface 103, and the second rotating disk 201 is provided with a second rotating contact surface 203. The first rotating contact surface 103 and the second rotating contact surface 203 are opposite to each other. After the first rotating disk 101 and the second rotating disk 201 are rotatably connected by the pin 40, the first rotating contact surface 103 and the second rotating contact surface 203 can rotate relative to each other around the pin 40. The first rotating contact surface 103 is provided with a first limiting groove 104 corresponding to the locking limiting portion 306, and the second rotating contact surface 20 3 is provided with a second limiting groove 204 corresponding to the locking limiting portion 306. The first rotating disk 101 and the second rotating disk 201 have a first position and a second position relative to each other. In the first position, the first limiting groove 104 and the second limiting groove 204 are spatially coaxial to form a circumferentially closed limiting hole (or constraint hole 50). The locking limiting portion 306 extends into the limiting hole 50 under the elastic force of the elastic member (spring 303) and forms a circumferential interference with the inner wall of the limiting hole 50 to prevent the first rotating disk 101 and the second rotating disk 201 from rotating relative to each other (refer to Figure 5 shown);

[0108] In the second position, the locking limit portion 306 is disengaged from the limiting hole 50, the first rotation contact surface 103 and the second rotation contact surface 203 can rotate relative to each other around the pin 40, and the locking limit portion 306 abuts against the outer peripheral surface of the first rotating disk 101 or the second rotating disk 201 when it is reset (refer to Figure 8 shown).

[0109] Specifically, when the first rotating arm 102 and the second rotating arm 202 are relatively unfolded, the first rotating disk 101 and the second rotating disk 201 are in the first relative position, and the first limiting groove 104 and the second limiting groove 204 overlap to form the limiting hole 50, that is, the upper and lower half grooves are aligned and matched to form the limiting hole 50. It can be seen that the limiting hole 50 is formed by the side wall of the first limiting groove 104 and the side wall of the second limiting groove 204. At this time, the first limiting groove 104 and the second limiting groove 204 are aligned. 04 is spatially coaxial with the second limiting groove 204, and the central axes of the two are collinear. Under the elastic force of the spring 303, the locking limiting portion 306 of the locking pin 301 extends into the limiting hole 50, forming a circumferential interference with the inner wall of the limiting hole 50, so that the first rotating contact surface 103 and the second rotating contact surface 203 cannot rotate relative to each other. The shape of the limiting hole 50 is adapted to the shape of the locking limiting portion 306, and the diameter of the locking limiting portion 306 is smaller than the diameter of the limiting hole 50.

[0110] When the first rotating arm 102 and the second rotating arm 202 need to be retracted, the locking limit portion 306 is pulled out from the limit hole 50, the first rotating contact surface 103 and the second rotating contact surface 203 rotate relative to each other around the pin shaft 40, the first limit groove 104 and the second limit groove 204 are staggered with each other, and after the first rotating arm 102 and the second rotating arm 202 are relatively retracted, the first rotating disk 101 and the second rotating disk 201 are in a relative second position. When the locking limit portion 306 is reset under the elastic force of the spring 303, its end portion contacts the outer peripheral surface of the first rotating disk 101 or the second rotating disk 201.

[0111] Furthermore, when the locking assembly 30 is installed on the first frame member 10, the locking pin 301 and the spring 303 are installed in the inner cavity of the first rotating arm 102, and the sliding sleeve 305 is sleeved on the first rotating arm 102. After the first rotating arm 102 and the second rotating arm 202 are relatively retracted, the first limiting groove 104 and the second limiting groove 204 are staggered with each other, and the locking limiting portion 306 contacts the outer circumferential surface of the second rotating disk 201 under the elastic force of the spring 303;

[0112] When the locking assembly 30 is installed on the second frame member 20, the locking pin 301 and the spring 303 are installed in the inner cavity of the second rotating arm 202, and the sliding sleeve 305 is sleeved on the second rotating arm 202. After the first rotating arm 102 and the second rotating arm 202 are relatively retracted, the first limiting groove 104 and the second limiting groove 204 are staggered with each other (refer to Figure 6 As shown), the locking limit portion 306 contacts the outer peripheral surface of the first rotating disk 101 under the elastic force of the spring 303 (refer to Figure 8 shown).

[0113] This embodiment will be described in detail below in conjunction with the specific state and folding process of the folding structure 100.

[0114] Reference Figure 9 In this embodiment, the trigger member (sliding sleeve 305) is installed in the end gripping area 60 of the first rotating arm 102 or the second rotating arm 202. Specifically, the trigger member (sliding sleeve 305) is installed in the end gripping area 60 of the second rotating arm 202 as an example;

[0115] Specifically, the trigger member (sliding sleeve 305) and the locking body (locking pin 301) are arranged on the outside of the same rotating arm (such as the second rotating arm 202) and are located in the gripping area at the end of the second rotating arm 202, forming part of the gripping operating portion W, so that the outer surface of the trigger member (sliding sleeve 305) at least partially constitutes the gripping contact surface of the gripping operating portion W;

[0116] When the user holds the holding operation part W to rotate the first rotating arm 102 and the second rotating arm 202, the user can simultaneously perform a trigger operation on the trigger member (sliding sleeve 305) while holding the second rotating arm 202 with one hand to drive the locking body (locking pin 301) to release the lock on the first rotating disk 101 and the second rotating disk 201.

[0117] When the folding structure 100 is in the expanded state, the locking member (locking pin 301) locks the first rotating disk 101 and the second rotating disk 201. When the folding structure 100 is in the folded state, the locking member (locking pin 301) releases the locking action on the first rotating disk 101 and the second rotating disk 201.

[0118] When the folding structure 100 is converted from the unfolded state to the folded state, the human hand holds the holding area 60 at one end of the first rotating arm 102 and the second rotating arm 202 respectively, and after the human hand pulls back the trigger member (sliding sleeve 305), the trigger member (sliding sleeve 305) is linked to the locking member (locking pin 301) through the linkage pin 304, and the locking pin 301 slides relative to the fixed pin 302 through the guide groove 307. At this time, the locking limit portion 306 is withdrawn from the limit hole 50, and the spring 303 is in a compressed state. The locking action of the locking member on the first rotating disk 101 and the second rotating disk 201 is released, and the first rotating disk 101 and the second rotating disk 201 are locked. 01 can rotate relative to each other around the pin shaft 40, and the first rotating arm 102 and the second rotating arm 202 are rotated by hand and brought closer to each other until the first rotating arm 102 and the second rotating arm 202 are fitted together. Whether the entire folding structure 100 is in the process of unfolding or folding, the person's hands can respectively hold the end holding areas 60 of the first rotating arm 102 and the second rotating arm 202. During the entire operation process, the ends of the first rotating arm 102 and the second rotating arm 202 are respectively held by a single hand of the human body, and the first rotating arm 102 and the second rotating arm 202 can both be subjected to force, and there will be no problems of uneven force or unsmooth folding.

[0119] When the folding structure 100 is in the folded state, the first limit groove 104 and the second limit groove 204 are staggered with each other. At this time, the limit hole 50 is not formed. When the locking limit part 306 is reset under the elastic force of the spring 303, the locking limit part 306 cannot find the limit hole 50, and its end will conflict with the outer peripheral surface of the first rotating disk 101 or the second rotating disk 201. In the specific design, if the locking pin 301 is set in the first rotating arm 102, when the folding structure 100 is in the folded state, the end of the locking limit part 306 will conflict with the outer peripheral surface of the second rotating disk 201. If the locking pin 301 is set in the second rotating arm 202, when the folding structure 100 is in the folded state, the end of the locking limit part 306 will conflict with the outer peripheral surface of the first rotating disk 101.

[0120] When the folding structure 100 is converted from the folded state to the unfolded state, the human hand holds the holding area 60 at one end of the first rotating arm 102 and the second rotating arm 202 respectively, and pulls the ends of the first rotating arm 102 and the second rotating arm 202 to the sides. At this time, the first rotating disk 101 and the second rotating disk 201 can rotate relative to each other around the pin 40 until the first limiting groove 104 and the second limiting groove 204 coincide with each other, that is, the upper and lower half grooves are aligned and matched to form a limiting hole 50. It can be seen that the limiting hole 50 0 is enclosed by the side walls of the first limiting groove 104 and the side walls of the second limiting groove 204. At this time, the first limiting groove 104 and the second limiting groove 204 are spatially coaxial, and the central axes of the two are collinear. Under the elastic force of the spring 303, the locking limit portion 306 of the locking pin 301 automatically extends into the limiting hole 50, forming a circumferential interference with the inner wall of the limiting hole 50. The first rotating contact surface 103 and the second rotating contact surface 203 cannot rotate relative to each other, and the folding structure 100 can achieve the effect of locking after being deployed.

[0121] In this embodiment, the above-mentioned first frame member 10 is an example of a first rotating component, the second frame member 20 is an example of a second rotating component, the first rotating disk 101 is an example of a first rotating member, the second rotating disk 201 is an example of a second rotating member, the first limiting groove 104 is an example of a first constraint portion, and the second limiting groove 204 is an example of a second constraint portion.

[0122] Example 2

[0123] Reference Figures 10 to 13The difference between this embodiment and embodiment 1 is that the structure of the locking assembly 40a in this embodiment is different from that of the locking assembly in embodiment 1. In this embodiment, the locking assembly 40a includes a locking pin 401 movably arranged in the inner cavity of the first rotating arm 102 or the second rotating arm 202, a fixing pin 402 fixedly connected to the first rotating arm 102 or the second rotating arm 202 and passing through the locking pin 401, a spring 403 sleeved on the outer side of the locking pin 401 and connected to the fixing pin 402 at one end and abutting against the locking pin 401 at the other end, a trigger 405 hinged to the first rotating arm 102 or the second rotating arm 202 through a rotating pin 404, and a connecting buckle 406 connecting the trigger 405 and the locking pin 401;

[0124] One end of the trigger 405 is hinged to the first rotating arm 102 or the second rotating arm 202 to form a hinged end 4051, and the other end of the trigger 405 extends from the inner cavity of the first rotating arm 102 or the second rotating arm 202 to form a pressure end 4052. One end of the connecting buckle 406 is connected to the middle part of the trigger 405, and the other end of the connecting buckle 406 is connected to the end of the locking pin 401.

[0125] The trigger 405 is configured as a triggering member, which is mounted on the first rotating arm 102 or the second rotating arm 202. The locking pin 401 is configured as a locking member, and the connecting buckle 406 is configured as a connecting member. Under normal circumstances, the locking member is used to limit the rotation angle of the first rotating disk 101 and the second rotating disk 201.

[0126] After the trigger is triggered, the locking member can be linked to the connecting buckle 406 so that the locking member releases the restriction of the first rotating disk 101 and the second rotating disk 201;

[0127] Reference Figure 14 , Figure 15 A locking limit portion 407 is provided on the locking pin 401 . The locking limit portion 407 is close to the first rotating disk 101 and the second rotating disk 201 , and can limit the rotation angle of the first rotating disk 101 and the second rotating disk 201 .

[0128] In addition, in order to facilitate the rotation of the trigger 405, when the locking assembly 40 is installed on the first rotating arm 102, a mounting port 408 will be provided on the first rotating arm 102, and when the locking assembly 40 is installed on the second rotating arm 202, a mounting port 408 will be provided on the second rotating arm 202. The mounting port 408 is the space required for the rotation of the trigger 405.

[0129] Furthermore, a guide groove 409 is provided on the locking pin 401 , and the fixing pin 402 passes through the guide groove 409 . The guide groove 409 extends along the length direction of the locking pin 401 .

[0130] Further, refer to Figures 16 to 19The first rotating disk 101 is provided with a first rotating contact surface 103, and the second rotating disk 201 is provided with a second rotating contact surface 203. The first rotating contact surface 103 and the second rotating contact surface 203 are opposite to each other. After the first rotating disk 101 and the second rotating disk 201 are rotatably connected through the pin shaft 40, the first rotating contact surface 103 and the second rotating contact surface 203 can rotate relative to each other around the pin shaft 40. The first rotating contact surface 103 is provided with a first limiting groove 104 corresponding to the locking limiting portion 407, and the second rotating contact surface 203 is provided with a second limiting groove 204 corresponding to the locking limiting portion 407.

[0131] When the first rotating arm 102 and the second rotating arm 202 are relatively extended, the first limiting groove 104 and the second limiting groove 204 are spatially coaxial to form a limiting hole 50. Under the elastic force of the spring 403, the locking limiting portion 407 of the locking pin 401 extends into the limiting hole 50, and the first rotating contact surface 103 and the second rotating contact surface 203 cannot rotate relative to each other. The shape of the limiting hole 50 is adapted to the shape of the locking limiting portion 407, and the diameter of the locking limiting portion 407 is smaller than the diameter of the limiting hole 50.

[0132] When the first rotating arm 102 and the second rotating arm 202 are relatively retracted, the person manually pulls the pressure end 4052 of the trigger 405, and the trigger 405 rotates with the rotating pin 404 as the support point. During the rotation, the trigger 405 drives the locking pin 401 to retreat through the connecting buckle 406, and the locking limit part 407 at the end of the locking pin 401 is pulled out from the limiting hole 50. At this time, the limiting state of the first rotating disk 101 and the second rotating disk 201 is released, and the first rotating contact surface 103 and the second rotating contact surface 203 can rotate relative to each other around the pin shaft 40, and the first limiting groove 104 and the second limiting groove 204 are staggered with each other. When the locking limit part 407 is reset under the elastic force of the spring 403, its end contacts the outer peripheral surface of the first rotating disk 101 or the second rotating disk 201.

[0133] Specifically, when the locking assembly 40 is installed on the first frame member 10, after the first rotating arm 102 and the second rotating arm 202 are relatively retracted, the first limiting groove 104 and the second limiting groove 204 are staggered with each other, and the locking limiting portion 407 contacts the outer peripheral surface of the second rotating disk 201 under the elastic force of the spring 403;

[0134] When the locking assembly 40 is installed on the second frame member 20, after the first rotating arm 102 and the second rotating arm 202 are relatively retracted, the first limiting groove 104 and the second limiting groove 204 are staggered with each other, and the locking limiting part 407 contacts the outer peripheral surface of the first rotating disk 101 under the elastic force of the spring 403.

[0135] This embodiment will be described in detail below in conjunction with the specific state and folding process of the folding structure 100.

[0136] Reference Figure 19 In this embodiment, the trigger (trigger 405) is installed in the end gripping area 60 of the first rotating arm 102 or the second rotating arm 202;

[0137] Specifically, the trigger member (trigger 405) and the locking body (locking pin 301) are arranged on the outside of the same rotating arm (such as the second rotating arm 202) and are located in the gripping area at the end of the second rotating arm 202, forming part of the gripping operation portion W, so that the outer surface of the trigger member (trigger 405) at least partially constitutes the gripping contact surface of the gripping operation portion W;

[0138] When the user holds the holding operation part W to rotate the first rotating arm 102 and the second rotating arm 202, the user can simultaneously perform a trigger operation on the trigger member (trigger 405) while holding the second rotating arm 202 with one hand to drive the locking body (locking pin 301) to release the lock on the first rotating disk 101 and the second rotating disk 201.

[0139] When the folding structure 100 is in the expanded state, the locking member (locking pin 401) locks the first rotating disk 101 and the second rotating disk 201. When the folding structure 100 is in the folded state, the locking member (locking pin 401) releases the locking action on the first rotating disk 101 and the second rotating disk 201.

[0140] When the folding structure 100 is converted from the expanded state to the folded state, the human hand holds the holding area 60 at one end of the first rotating arm 102 and the second rotating arm 202 respectively. After the human hand pulls the trigger (trigger 405), the trigger (trigger 405) is linked to the locking member (locking pin 401) through the connecting buckle 406, and the locking pin 401 slides relative to the fixed pin 402 through the guide groove 409. At this time, the locking limit portion 407 is withdrawn from the limit hole 50, and the spring 403 is in a compressed state. The locking action of the locking member on the first rotating disk 101 and the second rotating disk 201 is released, and the first rotating disk 101 and the second rotating disk 20 The first rotating arm 102 and the second rotating arm 202 can rotate relative to each other around the pin 40. The first rotating arm 102 and the second rotating arm 202 are rotated by a person's hand and brought closer to each other until the first rotating arm 102 and the second rotating arm 202 are in contact with each other. Whether the entire folding structure 100 is being expanded or folded, the person only needs to hold the end holding areas 60 of the first rotating arm 102 and the second rotating arm 202 with both hands. During the entire operation process, the ends of the first rotating arm 102 and the second rotating arm 202 are respectively held by a single hand of the human body, and both the first rotating arm 102 and the second rotating arm 202 can be subjected to force, without the problem of uneven force or unsmooth folding.

[0141] When the folding structure 100 is in the folded state, the first limit groove 104 and the second limit groove 204 are staggered with each other. At this time, the limit hole 50 is not formed. When the locking limit part 407 is reset under the elastic force of the spring 403, the locking limit part 407 cannot find the limit hole 50, and its end will conflict with the outer peripheral surface of the first rotating disk 101 or the second rotating disk 201. In the specific design, if the locking pin 401 is set in the first rotating arm 102, when the folding structure 100 is in the folded state, the end of the locking limit part 407 will conflict with the outer peripheral surface of the second rotating disk 201. If the locking pin 401 is set in the second rotating arm 202, when the folding structure 100 is in the folded state, the end of the locking limit part 407 will conflict with the outer peripheral surface of the first rotating disk 101.

[0142] When the folding structure 100 is converted from the folded state to the unfolded state, the human hand holds the holding area 60 at one end of the first rotating arm 102 and the second rotating arm 202 respectively, and pulls the ends of the first rotating arm 102 and the second rotating arm 202 to both sides relative to each other. At this time, the first rotating disk 101 and the second rotating disk 201 can rotate relative to each other around the pin shaft 40 until the first limiting groove 104 and the second limiting groove 204 are spatially coaxial to form a limiting hole 50. Under the elastic force of the spring 403, the locking limiting portion 407 of the locking pin 401 automatically extends into the limiting hole 50, and the first rotating contact surface 103 and the second rotating contact surface 203 cannot rotate relative to each other. The folding structure 100 can achieve the effect of locking after unfolding.

[0143] Example 3

[0144] Reference Figures 20 to 23 Based on the same technical concept, the embodiment of the present application provides a folding chair 200, which includes the rotating and folding structure 100 in the above-mentioned embodiment 1 or embodiment 2;

[0145] The front foot rod 210, the rear foot rod 220, the front seat rod 230, and the back rod 240 are respectively plugged into the first rotating arm 102 and the second rotating arm 202;

[0146] A first cable 250, one end of which extends into and is connected to the front foot rod 210, and the other end of which extends into and is connected to the front seat rod 230;

[0147] A second cable 260, one end of which extends into and is connected to the rear foot bar 220, and the other end of which extends into and is connected to the back bar 240;

[0148] The four corners of the seat pocket 270 are supported by two front seat rods 230 and two back rods 240 respectively.

[0149] It should be noted that the drawings of the folding chair 200 of this embodiment only show the rotating and folding structure 100 in Example 1. After the folding chair 200 adopts the above-mentioned folding structure 100, when the entire folding chair 200 is folded and unfolded, the ends of the first rotating arm 102 and the second rotating arm 202 are respectively held by a single hand of the human body, and the force is evenly applied, and the folding and folding are smooth.

[0150] In addition, in this embodiment, the front foot rod 210, the rear foot rod 220, the front seat rod 230, and the back rod 240 on the first rotating arm 102 are all connected thereto via an easily deployable structure 300. Similarly, the front foot rod 210, the rear foot rod 220, the front seat rod 230, and the back rod 240 on the second rotating arm 202 are all connected thereto via an easily deployable structure 300.

[0151] Reference Figure 24-27 The easily deployable structure 300 includes a support rod 320 rotatably mounted on a mounting body 310 , wherein the mounting body 310 is provided with a plug-in portion 3101 , and one end of the support rod 320 is an insertion end 3201 , which is suitable for being inserted into the plug-in portion 3101 .

[0152] It should be noted that, in this embodiment, the mounting body 310 is constructed as the first rotating arm 102 or the second rotating arm 202 , and the support rod 320 is constructed as the front foot rod 210 or the rear foot rod 220 or the front seat rod 230 or the back rod 240 .

[0153] Furthermore, a pivot 330 is provided on one of the plug-in portion 3101 and the insertion end 3201, and a guide groove 340 corresponding to the pivot 330 is provided on the other of the plug-in portion 3101 and the insertion end 3201. The pivot 330 and the guide groove 340 are slidably fitted together, and the plug-in direction of the support rod 320 relative to the plug-in portion 3101 is consistent with the extension direction of the guide groove 340.

[0154] In this embodiment, the pivot 330 is mounted on the plug-in portion 3101 , and the guide groove 340 is provided on the insertion end 3201 . One end of the guide groove 340 is a first limiting end 3401 , and the other end is a second limiting end 3402 .

[0155] The plug-in portion 3101 is provided with an escape opening 3102 . When the support rod 320 rotates relative to the mounting body 310 , the escape opening 3102 provides the insertion end 3201 with the escape space required to rotate out of the plug-in portion 3101 .

[0156] When the pivot 330 slides to the first limit end 3401 of the guide groove 340, the support rod 320 is in the first assembly state. At this time, the insertion end 3201 of the support rod 320 extends into the plug-in portion 3101, and the support rod 320 is stopped relative to the plug-in portion 3101. Specifically, in this state, the pivot 330 limits the support rod 320. When the support rod 320 is subjected to force, it cannot further extend into the interior of the plug-in portion 3101. At the same time, the support rod 320 cannot rotate relative to the plug-in portion 3101, thereby achieving a high-strength support effect after deployment;

[0157] When the pivot 330 slides to the second limit end 3402 of the guide groove 340, the support rod 320 is in the second assembly state, and the insertion end 3201 of the support rod 320 is pulled out from the plug-in portion 3101. The insertion end 3201 can rotate with the pivot 330 as the center within the avoidance space provided by the avoidance opening 3102. The support rod 320 can rotate relative to the installation body 310 until the circumference of the support rod 320 contacts the bottom surface of the avoidance opening 3102, at which point the support rod 320 is in a folded state relative to the installation body 310.

[0158] Furthermore, in this embodiment, the distance L1 between the center of the pivot 330 and the bottom of the avoidance opening 3102 is smaller than the length L2 of the guide groove 340. The advantage of this size design is that when the insertion end 3201 of the support rod 320 is fully inserted into the plug-in portion 3101, the pivot 330 is located at the first limit end 3401 of the guide groove 340. When the insertion end 3201 of the support rod 320 is fully pulled out from the plug-in portion 3101, the pivot 330 is located at the second limit end 3402 of the guide groove 340. When L2 is greater than L1, the end face of the insertion end 3201 can be located in the space where the avoidance opening 3102 is located after the insertion end 3201 of the support rod 320 is fully pulled out from the plug-in portion 3101. In this case, the insertion end 3201 can rotate in the space provided by the avoidance opening 3102 with the pivot 330 as the center.

[0159] Furthermore, in this embodiment, the number of the plug-in parts 3101 on the installation body 310 is more than two, and the number of the support rods 320 plugged into the installation body 310 is more than two, so that multiple support rods 320 can be easily plugged into the installation body 310 .

[0160] An elastic member 350 is arranged between the support rod 320 and the installation body 310. The elastic member 350 is preferably a cable. One end of the elastic member 350 extends into one support rod 320 and is connected thereto, and the other end of the elastic member 350 extends into the interior of the installation body 310 and extends into another support rod 320 and is connected thereto. The elastic member 350 is the first cable 250 or the second cable 260.

[0161] Specifically, the end of the support rod 320 is generally installed with a buckle cover 360, and the end of the elastic member 350 extends into the interior of the support rod 320 and is connected to the buckle cover 360. Taking the two support rods 320 installed on the installation body 310 as an example, after the elastic member 350 is installed between the two support rods 320, the two ends of the elastic member 350 respectively play a pulling role on the two support rods 320. When the support rod 320 is not plugged into the installation body 310, the support rod 320 will also be pulled by the elastic member 350. When the support rod 320 is plugged into the plug-in portion 3101, the elastic member 350 is in a natural or tensile state. When the support rod 320 is in the extended state, the support rod 320 is in the rotational folding state relative to the mounting body 310, and the elastic member 350 is in the elastically stretched state. When the support rod 320 is converted from the folded state to the unfolded state, under the elastic tension of the elastic member 350, the insertion end 3201 of the support rod 320 will be automatically inserted into the plug-in portion 3101. The easy-to-expand structure is achieved through the cooperation of the pivot 330 and the guide groove 340, as well as the structural design of the elastic member 350. When the support rod 320 is in the folded state and is released from external constraints, the support rod 320 can be automatically aligned with the plug-in portion 3101 and automatically inserted.

[0162] The present application will be described in detail below in conjunction with the specific usage of the deployable structure 300 .

[0163] The easily deployable structure 300 of the present application includes a folded state and an unfolded state. In the folded state, the support rod 320 is folded relative to the installation body 310. In the unfolded state, the support rod 320 is inserted into the plug-in portion 3101 of the installation body 310. It should be noted that when the support rod 320 is in a folded state relative to the installation body 310, the elastic member 350 is in a stretched state, which will generate a pulling force on the support rod 320. Therefore, the installation body 310 will be provided with a restraint belt (not shown) to bind and fix the support rod 320.

[0164] Specifically, during the process of the easily deployable structure 300 being transformed from a folded state to an unfolded state, the support rod 320 rotates around the mounting body 310 connected thereto and rotates until the insertion end 3201 is opposite to the plug-in portion 3101. At this time, the elastic member 350 is in a stretched state, and under the elastic tension of the elastic member 350, the insertion end 3201 of the support rod 320 is automatically inserted into the plug-in portion 3101.

[0165] Furthermore, when the easily deployable structure 300 is in the folded state, the pivot 330 is located at the second limit end 3402 , and when the easily deployable structure 300 is in the unfolded state, the pivot 330 is located at the first limit end 3401 ;

[0166] When the easily deployable structure 300 is converted from a folded state to an unfolded state, under the elastic tension of the elastic member 350, the support rod 320 rotates around the mounting body 310 with the pivot 330 as the center until the insertion end 3201 of the support rod 320 is opposite to the plug-in portion 3101. At the same time, under the elastic tension of the elastic member 350, the insertion end 3201 of the support rod 320 is inserted into the plug-in portion 3101. During this process, the pivot 330 slides from the second limit end 3402 to the first limit end 3401 relative to the guide groove 340.

[0167] When the easily deployable structure 300 is converted from the unfolded state to the folded state, the pivot 330 slides from the first limit end 3401 to the second limit end 3402 relative to the guide groove 340, the support rod 320 rotates around the frame 310 component with the pivot 330 as the center, the elastic member 350 is in a stretched state, and the avoidance opening 3102 provides the avoidance space required for rotation to the insertion end 3201.

[0168] In summary, the easily deployable structure 300 is used for the connection position between the support rod 320 and the installation body 310. The insertion end 3201 of the support rod 320 and the plug-in portion 3101 of the installation body 310 are rotatably connected via a pivot 330. The insertion end 3201 of the support rod 320 or the plug-in portion 3101 of the installation body 310 is provided with a guide groove 340 that slides with the pivot 330. In addition, the plug-in portion 3101 is provided with an avoidance opening 3102. When the support rod 320 is pulled out of the plug-in portion 3101 for a certain distance until the pivot 330 slides to the second limit end 3401 of the guide groove 340, the support rod 320 rotates with the plug-in portion 3101 around the pivot 330 and is in a folded state. The escape opening 3102 provides the insertion end 3201 with the necessary escape space to rotate out of the plug-in portion 3101. The support rod 320 in the folded state is in a rotationally connected state with the plug-in portion 3101, but is not separated.

[0169] When the support rod 320 needs to be unfolded, the support rod 320 rotates in the opposite direction with the plug-in portion 3101 around the pivot 330. When the insertion end 3201 of the support rod 320 is opposite to the plug-in portion 3101, the insertion end 3201 is inserted into the plug-in portion 3101. At this time, the pivot 330 slides to the first limit end 3401 of the guide groove 340, and the pivot 330 limits the support rod 320. When the support rod 320 is subjected to force, it cannot be further extended into the interior of the plug-in portion 3101. At the same time, the support rod 320 cannot be relative to The plug-in portion 3101 rotates, thereby achieving a high-strength support effect after deployment. After the easy-to-deploy structure is used, during the conversion of the support rod 320 from the folded state to the deployed state, there is no need for manual docking between the insertion end 3201 of the support rod 320 and the plug-in portion 3101 of the installation body 310. Through the cooperation of the pivot 330 and the guide groove 340, after the support rod 320 is deployed, its insertion end 3201 can automatically align with the plug-in portion 3101, making the assembly between the support rod 320 and the installation body 310 convenient and efficient.

[0170] In addition, an elastic member 350 is arranged between the support rod 320 and the mounting body 310. When the support rod 320 is in a folded state, the elastic member 350 is in a stretched state. When the support rod 320 is converted from a folded state to an unfolded state, under the elastic tension of the elastic member 350, the insertion end 3201 of the support rod 320 will be automatically inserted into the plug-in portion 3101. The easy-to-expand structure is achieved through the cooperation of the pivot 330 and the guide groove 340, as well as the structural design of the elastic member 350. When the support rod 320 is in a folded state and is released from external constraints, the support rod 320 can be automatically aligned with the plug-in portion 3101 and automatically inserted.

[0171] During the folding process of the entire folding chair, the ends of the first rotating arm 102 and the second rotating arm 202 are respectively grasped by a single hand of the human body, so that the force is evenly applied and the folding is smooth; moreover, the front foot rod 210, the rear foot rod 220, the front seat rod 230, and the back rod 240 movably installed on the first rotating arm 102 and the second rotating arm 202 are also convenient for folding. When the various rods are reset, they can be automatically aligned and automatically inserted, which makes the operation convenient and quick.

[0172] Example 4

[0173] Reference Figure 28 , Figure 29 Based on the same technical concept, the embodiment of the present application provides a storage box rack 400, which includes the rotating and retractable structure 100 of the above-mentioned embodiment 1 or embodiment 2, support legs 410 respectively inserted into the first rotating arm 102 and the second rotating arm 202, and support blocks 420 provided on the surfaces of the first rotating arm 102 and the second rotating arm 202;

[0174] When the storage box rack 400 is in use, the storage box 430 is placed on the support block 420, and the surface of the support block 420 has a friction surface 440, which can prevent the storage box 430 from slipping when placed on it.

[0175] The storage box rack 400 can be folded and unfolded during use. It should be noted that the drawings of the storage box rack 400 of this embodiment only show the rotating and folding structure 100 in Example 1. Since the first rotating arm 102 and the second rotating arm 202 adopt the design of the rotating and folding structure 100, when the storage box rack 400 is folded and unfolded, the ends of the first rotating arm 102 and the second rotating arm 202 are respectively grasped by a single hand of the human body, the force is evenly applied, and the folding and unfolding are smooth.

[0176] Example 5

[0177] Reference Figure 30 , Figure 31 Based on the same technical concept, an embodiment of the present application provides a table 500, which includes the rotating and retractable structure 100 in the above-mentioned embodiment 1 or embodiment 2, a lower support leg 510 and an upper support rod 520 respectively plugged into the first rotating arm 102 and the second rotating arm 202, a support assembly 530 connected to the upper support rod 520, and a table top unit 540 arranged above the support assembly 530. It should be noted that the accompanying drawings of the table 500 in this embodiment only show the rotating and retractable structure 100 in embodiment 1.

[0178] In this embodiment, the support assembly 530 includes:

[0179] The plug connector 5301 can be plugged into the end of the upper support rod 520;

[0180] The lower buckle plate 5302 is mounted on one end of the plug connector 5301;

[0181] The table support rod 5303 is buckled and connected to the lower buckle plate 5302.

[0182] Furthermore, an upper buckle plate 550 is provided at the bottom of the table panel unit 540. When the table is assembled, the lower supporting foot 510 and the upper supporting rod 520 are respectively plugged into the first rotating arm 102 and the second rotating arm 202, the plug connector 5301 is plugged into the end of the upper supporting rod 520, the table panel support rod 5303 is snap-fitted and connected with the lower buckle plate 5302 on the plug connector 5301, the table panel support rod 5303 is supported on the bottom of the table panel unit 540, and the upper buckle plate 550 at the bottom of the table panel unit 540 is snap-fitted and connected with the table panel support rod 5303.

[0183] The table 500 consists of a detachable tabletop unit 540, a support assembly 530, a folding structure 100, a lower support leg 510 and an upper support rod 520. The folding structure 100 constitutes the main support frame of the table. When the folding structure 100 is folded and unfolded, the ends of the first rotating arm 102 and the second rotating arm 202 are respectively held by a single hand of the human body, so that the force is evenly applied and the folding is smooth.

[0184] 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. A rotating and folding structure, characterized in that: include: The first rotating member and the second rotating member are connected to each other via a rotating shaft so as to be rotatable relative to each other; a first restraining portion, disposed on the first rotating member; a second restraining portion, disposed on the second rotating member; A resiliently resetting locking body, wherein In the deployed state, the first restraining portion and the second restraining portion are coaxial in space to form a circumferentially closed restraining hole, and the locking body is driven by elastic force to fit into the restraining hole and form circumferential interference with the inner wall of the restraining hole to prevent the first rotating member and the second rotating member from rotating relative to each other; In the folded state, the locking body is disengaged from the constraint hole, the first rotating member and the second rotating member can rotate relative to each other around the rotating shaft, and the locking body is elastically abutted against the outer peripheral surface of the first rotating member or the second rotating member.

2. The rotating and folding structure according to claim 1, characterized in that: The embedding movement direction of the locking body is perpendicular to the axial direction of the rotating shaft.

3. The rotating and folding structure according to claim 1, wherein: In the folded state, the elastic force always causes the locking body to have a movement tendency toward the radial direction of the rotating shaft.

4. The rotating and folding structure according to any one of claims 1 to 3, characterized in that: In the folded state, the first restraining portion and the second restraining portion are misaligned, and during the transition from the folded state to the expanded state, the locking body is continuously pressed against the outer peripheral surface of the first rotating member or the second rotating member by the elastic force; When the first rotating member and the second rotating member rotate relative to each other to a predetermined angle, the spatial positions of the first constraint portion and the second constraint portion are aligned, automatically forming the circumferentially closed constraint hole. Driven by elastic force, the locking body is embedded in the constraint hole and forms circumferential interference with the inner wall of the constraint hole to complete rotation locking.

5. The rotating and folding structure according to any one of claims 1 to 3, characterized in that: In the expanded state, the first restraining portion and the second restraining portion are spatially coaxial. During the transition from the expanded state to the folded state, a radial unlocking external force is applied to the locking body to overcome the elastic force and cause the locking body to exit the restraining hole. The first rotating member and the second rotating member obtain relative rotational freedom around the rotation axis. During the relative rotation, the first restraining portion and the second restraining portion are spatially misaligned, causing the restraining hole to decompose and disappear. After the unlocking external force is removed, the locking body is driven by the elastic force to abut against the outer peripheral surface of the first rotating member or the second rotating member to maintain a non-interference state.

6. A rotating and folding structure, characterized in that: include: A first rotating disk comprising a first rotating contact surface and a first limiting groove provided on the first rotating contact surface; a second rotating disk comprising a second rotating contact surface opposite to the first rotating contact surface and a second limiting groove provided on the second rotating contact surface; A pin connecting the first rotating disk and the second rotating disk to achieve relative rotation between the two; A locking assembly comprising a locking pin, an elastic member, and a locking limiter provided at an end of the locking pin; Wherein, the first rotating disk and the second rotating disk have a first position and a second position relative to each other; In the first position, the first limiting groove and the second limiting groove are coaxial to form a circumferentially closed limiting hole, and the locking limiting portion extends into the limiting hole under the elastic force of the elastic member and forms a circumferential interference with the inner wall of the limiting hole to prevent the rotating disk from rotating relative to each other; In the second position, the locking limit portion is disengaged from the limiting hole, the first rotating contact surface and the second rotating contact surface can rotate relative to each other around the pin shaft, and the locking limit portion abuts against the outer circumference of the first rotating disk or the second rotating disk when resetting.

7. The rotating and folding structure according to claim 6, characterized in that: The first rotating disk is fixedly connected to the first rotating arm, and the second rotating disk is fixedly connected to the second rotating arm, wherein the first position and the second position are determined by the relative positions of the first rotating arm and the second rotating arm.

8. The rotating and folding structure according to claim 6 or 7, characterized in that: After the locking limit portion is separated from the limit hole, the end portion thereof is continuously acted upon by the elastic force of the elastic member and abuts against the outer peripheral surface of the first rotating disk or the second rotating disk.

9. The rotating and folding structure according to claim 8, characterized in that: The locking pin and the elastic member of the locking assembly are both installed in the inner cavity of the first rotating arm, and the locking pin is adapted to be actuated by a trigger member movably installed on the outer side of the first rotating arm; or, The locking pin and the elastic member of the locking assembly are both installed in the inner cavity of the second rotating arm, and the locking pin is suitable for being actuated by a trigger member movably installed on the outer side of the second rotating arm.

10. The rotating and folding structure according to claim 9, characterized in that: The trigger is located at the end gripping area of ​​the first rotating arm or the second rotating arm; The trigger member is configured to be triggered when a user grips the end grip area to rotate the first rotating arm or the second rotating arm.

11. The rotating and folding structure according to claim 10, characterized in that: The triggering member is a sliding sleeve; The sliding sleeve is sleeved on the first rotating arm or the second rotating arm and is connected to the locking pin through a linkage pin.

12. The rotating and folding structure according to claim 10, characterized in that: The triggering member is a trigger; One end of the trigger is hinged to the first rotating arm or the second rotating arm through a rotating pin, and the other end extends from the inner cavity of the first rotating arm or the second rotating arm and is connected to the locking pin through a connecting piece.

13. A folding chair, characterized in that: include: The rotating and folding structure according to any one of claims 1 to 12; A front foot rod, a rear foot rod, a front seat rod, and a rear back rod are respectively plugged into the first rotating arm and the second rotating arm; a first cable, 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; a second cable, one end of which extends into and is connected to the rear foot bar, and the other end of which extends into and is connected to the back bar; The four corners of the chair pocket are respectively supported by the two front seat rods and the two back rods.

14. A storage box rack, characterized in that: include: The rotating and folding structure according to any one of claims 1 to 12; Support legs respectively plugged into the first rotating arm and the second rotating arm; A support block provided on the surfaces of the first rotating arm and the second rotating arm; The support block is suitable for placing a storage box.

15. A table, characterized in that: include: The rotating and folding structure according to any one of claims 1 to 12; A lower supporting foot and an upper supporting rod respectively plugged into the first rotating arm and the second rotating arm; a support assembly connected to the upper support rod; A tabletop unit is arranged above the supporting assembly.

16. The table according to claim 15, 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.

17. The table according to claim 16, 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.

Images