Folding mechanism, folding support and camp bed

Abstract

The utility model relates to a folding mechanism, a folding support and a camp bed, the folding mechanism comprises a connecting piece, a supporting leg and a supporting rod, the supporting leg and the supporting rod are both rotatably connected with the connecting piece, and the supporting leg and the supporting rod synchronously rotate inwards or outwards; and an insertion hole is formed in the connecting piece. The folding mechanism, the folding support and the camp bed have the advantages that due to the folding mode that the supporting legs and the supporting rods rotate synchronously, the folded folding mechanism is small in size and convenient to store; and the design of the plug-in holes facilitates the connection with the outside.

Description

Technical Field

[0001] This utility model relates to the field of folding component technology, and in particular to a folding mechanism, folding bracket, and cot. Background Technology

[0002] As people's living standards improve, the furniture they use in daily life is becoming more intelligent and comfortable. Folding devices are also widely used, such as outdoor folding chairs, folding tables, and cots.

[0003] In the prior art, for example, Chinese Utility Model Patent Publication No. CN 221105286 U discloses an outdoor folding chair, including a fabric cover, a support rod assembly for installing the fabric cover and for supporting it on the ground, and a support frame for installing the support rod assembly. The support frame includes two support units, which are rotatably connected by a hinge assembly. The support unit has an open state and a retracted state. When the support unit is in the open state, the two support units are at the same horizontal height. When the support unit is in the retracted state, the support units rotate relative to each other and abut parallel to each other. However, the folding operation of this outdoor folding chair is complicated and inconvenient. Utility Model Content

[0004] One objective of this application is to provide a folding mechanism, a folding bracket, and a cot that are easy to fold.

[0005] The technical solution adopted in this application is as follows: a folding mechanism, including a connector, legs, struts and a limiting mechanism, wherein the legs and struts are rotatably connected to the connector, and the legs and struts rotate synchronously inward or outward; the connector is provided with at least one insertion hole; the insertion hole is located between the legs and struts; the limiting mechanism is used to limit the rotation of the struts or legs in the unfolded state.

[0006] Compared with the prior art, the advantages of this application are that the folding mode of the outriggers and struts rotate synchronously, which makes folding and unfolding quick and convenient, and the folded volume is small and easy to store; the design of the plug hole facilitates connection with the outside world; and the limiting mechanism ensures that the struts or outriggers can be reliably unfolded.

[0007] In some embodiments of this application, the outrigger and the strut rotate synchronously via a first gear and a second gear that mesh with each other. Both the first gear and the second gear are rotatably connected to a connecting member. The outrigger is connected to the first gear, and the strut is connected to the second gear.

[0008] Furthermore, both the first gear and the second gear are rotatably connected to the connector via a rotating shaft. The rotating shaft has a first plane, and the shaft holes of the first gear and the second gear have a second plane. The first plane and the second plane are in contact.

[0009] Further, the first gear is provided with a first connecting block extending outward, the second gear is provided with a second connecting block extending outward, the supporting leg is connected with the first connecting block, and the supporting rod is connected with the second connecting block.

[0010] In some embodiments of the present application, the limiting mechanism comprises a limiting female buckle and a limiting male buckle matched with the limiting female buckle, the limiting female buckle is arranged on the supporting rod, the limiting male buckle is arranged on the connecting piece, and the limiting male buckle and the limiting female buckle are buckled in the unfolded state of the supporting rod; the limiting male buckle is in sliding connection with the connecting piece, and the limiting male buckle has a movement tendency towards the limiting female buckle.

[0011] In some embodiments of the present application, the limiting mechanism comprises a first limiting piece and a limiting hole matched with the first limiting piece, the first limiting piece is arranged on the supporting rod, and the limiting hole is arranged on the connecting piece; the first limiting piece is used for limiting rotation of the supporting rod in the unfolded state of the supporting rod; the connecting piece is provided with an unlocking key used for releasing the rotation limiting of the supporting rod, and the unlocking key is matched with the first limiting piece.

[0012] In some embodiments of the present application, the connecting piece comprises a first baffle, the first baffle is located on the side opposite to the insertion hole, and the supporting leg and the supporting rod are located between the first baffle and the insertion hole; in the unfolded state of the supporting leg and / or the supporting rod, the supporting leg and / or the supporting rod are attached to the first baffle.

[0013] In some embodiments of the present application, the connecting piece comprises at least one first mounting groove and at least one second mounting groove, the supporting leg is located in the first mounting groove, and the supporting rod is located in the second mounting groove.

[0014] Further, two first mounting grooves and one second mounting groove are arranged, two supporting legs are arranged, and the two supporting legs are located in the two first mounting grooves respectively; the second mounting groove is located between the two first mounting grooves; the first mounting grooves are symmetrically arranged relative to the second mounting groove; two insertion holes are arranged, and the two insertion holes are located on the two sides of the supporting rod respectively; and a handle is arranged on the side of the connecting piece away from the insertion hole.

[0015] A folding support comprises a horizontal rod, an intermediate connecting part and at least two pairs of the folding mechanism, each pair of the folding mechanism is connected through the horizontal rod, and the horizontal rods are connected through the intermediate connecting part; or the folding support comprises a horizontal rod and four folding mechanisms, the folding mechanisms are connected through the horizontal rod to form a rectangle.

[0016] A folding bed comprises the folding mechanism. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a structural schematic view of embodiment 1 of the utility model;

[0018] Figure 2 is a sectional view of embodiment 1 of the utility model;

[0019] Figure 3 is an exploded view of the embodiment 1 of the utility model;

[0020] Figure 4 is a structure schematic view of the embodiment 2 of the utility model;

[0021] Figure 5 is an exploded view of the embodiment 2 of the utility model;

[0022] Figure 6 is a structure schematic view of the embodiment 5 of the utility model Figure 1 ;

[0023] Figure 7 is a structure schematic view of the embodiment 5 of the utility model Figure 2 ;

[0024] Figure 8 is a structure schematic view of the embodiment 5 of the utility model, and the second limiting piece is removed;

[0025] Figure 9 is a structure schematic view of the embodiment 5 of the utility model as a table;

[0026] Figure 10 is a structure schematic view of the embodiment 7 of the utility model Figure 1 ;

[0027] Figure 11 is a structure schematic view of the embodiment 7 of the utility model, and the fabric is removed;

[0028] Figure 12 is a structure schematic view of the embodiment 3 of the utility model;

[0029] Figure 13 is a structure schematic view of the embodiment 4 of the utility model;

[0030] Figure 14 is a sectional view of the embodiment 4 of the utility model;

[0031] Figure 15 is a structure schematic view of the embodiment 6 of the utility model;

[0032] Figure 16 is a structure schematic view of the embodiment 7 of the utility model Figure 2 ;

[0033] Figure 17 is a structure schematic view of the embodiment 8 of the utility model;

[0034] Figure 18 is a structure schematic view of the embodiment 9 of the utility model.

[0035] In the diagram: 1. Fabric; 2. Connector; 3. Bed post; 4. Crossbar; 5. Support leg; 6. Support rod; 7. First gear; 8. Second gear; 9. Shaft; 10. First plane; 11. Second plane; 12. First limiting component; 13. Limiting hole; 14. Unlock button; 15. First baffle; 16. First mounting groove; 17. Second mounting groove; 18. Insertion hole; 19. Slot; 20. First connecting block; 21. Second connecting block; 22. Middle connecting part; 23. Tabletop; 24. Connecting hole; 25. Third plane; 26. Second limiting component; 27. Second baffle; 28. Handle; 29. ​​Limiting female buckle; 30. Limiting male buckle; 31. Buckle hole; 32. Slide groove; 33. Elastic component; 34. Extension component. Detailed Implementation

[0036] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0037] Example 1:

[0038] This embodiment provides a folding mechanism, such as Figure 1 , Figure 2 As shown, the device includes a connector 2, a support leg 5, and a support rod 6. Both the support leg 5 and the support rod 6 are rotatably connected to the connector 2, and they rotate synchronously inward or outward. The connector 2 has a horizontally positioned insertion hole 18 located between the support leg 5 and the support rod 6. The support leg 5 faces diagonally downward, and the support rod 6 faces diagonally upward. The support leg 5 and the support rod 6 rotate in opposite directions. In the folded state, the support rod 6, the insertion hole 18, and the support leg 5 are stacked sequentially, and the support leg 5 does not come into contact with the support rod 6, thus preventing contamination of the support rod 6.

[0039] The folding mode of the outriggers 5 and the support rods 6 rotates synchronously, making folding and unfolding quick and convenient. The folded size is small and easy to store. The design of the plug hole 18 facilitates connection with the outside world.

[0040] To ensure reliable synchronous rotation of the support leg 5 and the support rod 6, the support leg 5 and the support rod 6 rotate synchronously via a meshing first gear 7 and a second gear 8. Both the first gear 7 and the second gear 8 are rotatably connected to the connecting member 2. The support leg 5 is connected to the first gear 7, and the support rod 6 is connected to the second gear 8. The meshing of the first gear 7 and the second gear 8 allows either the rotation of the first gear 7 or the rotation of the second gear 8 to drive the other gear to rotate synchronously. The connection between the support leg 5 and the first gear 7, and the connection between the support rod 6 and the second gear 8, ensures that rotating the support leg 5 or the support rod 6 drives the other gear to rotate synchronously, thus achieving synchronous rotation of the support leg 5 and the support rod 6. In this embodiment, the first gear 7 and the second gear 8 have the same number of teeth and module, ensuring that the rotation angles of the support leg 5 and the support rod 6 are the same.

[0041] To ensure reliable rotation of the first gear 7 and the second gear 8, both are rotatably connected to the connecting member 2 via a rotating shaft 9. The rotating shaft 9 has a first plane 10, and the shaft holes of the first gear 7 and the second gear 8 have second planes 11, with the first plane 10 and the second plane 11 fitting together. The first plane 10 extends inward from one end of the rotating shaft 9, allowing the first gear 7 and the second gear 8 to pass through the initial end of the first plane 10 of the rotating shaft 9, ensuring reliable installation of the first gear 7 and the second gear 8. In this embodiment, both ends of the rotating shaft 9 are threaded and connected to the connecting member 2 via nuts.

[0042] To ensure reliable rotation of the support leg 5 and the support rod 6, the first gear 7 is provided with an outwardly extending first connecting block 20, and the second gear 8 is provided with an outwardly extending second connecting block 21. The support leg 5 is connected to the first connecting block 20, and the support rod 6 is connected to the second connecting block 21. The first connecting block 20 and the first gear 7 are integrally formed, and the second connecting block 21 and the second gear 8 are integrally formed. In this embodiment, the support leg 5 is a round tube, which is fitted onto the first connecting block 20 and riveted to it. The support rod 6 is a square tube, which is fitted onto the second connecting block 21 and riveted to it. The connection between the support leg 5 and the first connecting block 20 fixes the installation position of the support leg 5, improving assembly efficiency, and also ensures a firm connection between the support leg 5 and the first gear 7, guaranteeing reliable rotation. The connection between the support rod 6 and the second connecting block 21 fixes the installation position of the support rod 6, improving assembly efficiency, and also ensures a firm connection between the support rod 6 and the second gear 8, guaranteeing reliable rotation.

[0043] In order to make the expansion of the support rod 6 reliable, the support rod 6 is provided with a first limiting piece 12, the connecting piece 2 is provided with a limiting hole 13 matched with the first limiting piece 12, and the first limiting piece 12 is used for limiting the rotation of the support rod 6 in the expanded state. In the embodiment, the first limiting piece 12 is a limiting bead, the top of which is hemispherical, and the bottom of which is provided with a reset spring. When the support rod 6 is expanded to the position, the top of the limiting bead is just clamped into the limiting hole 13, so that the support rod 6 will abut against the side surface of the limiting bead when it continues to move, and the limiting bead plays a role of blocking the movement of the support rod 6. Of course, the first limiting piece 12 can also be a V-shaped elastic sheet.

[0044] In order to release the limiting of the support rod 6, the connecting piece 2 is provided with an unlocking key 14 for releasing the rotation limiting of the support rod 6, and the unlocking key 14 is matched with the first limiting piece 12. In the expanded state, the unlocking key 14 is pressed down to press the first limiting piece 12, and the limiting of the support rod 6 is released. In the embodiment, the unlocking key 14 is a button.

[0045] In order to make the rotation range of the support leg 5 and the support rod 6 reliable, the connecting piece 2 comprises a first baffle 15 located on the side opposite to the insertion hole 18, and the support leg 5 and the support rod 6 are located between the first baffle 15 and the insertion hole 18. In the expanded state of the support rod 6, the support rod 6 is attached to the first baffle 15. The design of the first baffle 15 can prevent the rotation of the support rod 6 from exceeding the range, and the support leg 5 and the support rod 6 are synchronously rotated. When the support rod 6 is attached and limited to move, the support leg 5 cannot rotate outward any more, which ensures the reliability of the expansion of the support leg 5 and the support rod 6. At the same time, the first baffle 15 can also provide a supporting action to the support rod 6. When the first limiting piece 12 fails, the support rod 6 will also be blocked by the first baffle 15, which prevents the support rod 6 from expanding outward and ensures the safety of use. Of course, the first baffle 15 can also block the support leg 5 alone or block the support leg 5 and the support rod 6 simultaneously. The first baffle 15 is located on the side opposite to the insertion hole 18, and the support leg 5 and the support rod 6 are located between the first baffle 15 and the insertion hole 18, so that when the support leg 5 and the support rod 6 are opened outward, they will be limited and blocked by the first baffle 15, and when the support leg 5 and the support rod 6 are folded inward, they will be limited and blocked by the insertion hole 18, which ensures the reliability of the expansion and folding.

[0046] In order to connect the member 2 reliably, the connecting member 2 comprises at least one first mounting slot 16 and at least one second mounting slot 17, the leg 5 is located in the first mounting slot 16, and the strut 6 is located in the second mounting slot 17. In the embodiment, one first mounting slot 16 and one second mounting slot 17 are provided, and the first mounting slot 16 and the second mounting slot 17 are communicated; the first gear 7 is located in the first mounting slot 16, and the second gear 8 is located in the second mounting slot 17. The design of the first mounting slot 16 limits the axial movement of the leg 5 towards the rotating shaft 9, ensures the reliable installation of the leg 5, and at the same time, the end of the leg 5 is located in the first mounting slot 16, which can reduce the influence of the outside on the connecting end of the leg 5 and improve the protection of the leg 5; the design of the second mounting slot 17 limits the axial movement of the strut 6 towards the rotating shaft 9, ensures the reliable installation of the strut 6, and at the same time, the end of the strut 6 is located in the second mounting slot 17, which can reduce the influence of the outside on the connecting end of the strut 6 and improve the protection of the strut 6; the second gear 8 is located in the second mounting slot 17, which has good protection for the second gear 8, the second gear 8 is not easy to contact with foreign matters outside, which can reduce the influence of the outside on the rotation of the second gear 8 and ensure the reliable rotation of the second gear 8; the first gear 7 is located in the first mounting slot 16, which has good protection for the first gear 7, the first gear 7 is not easy to contact with foreign matters outside, which can reduce the influence of the outside on the rotation of the first gear 7 and ensure the reliable rotation of the first gear 7.

[0047] The connecting member 2 is provided with a through hole, and the rotating shaft 9 is arranged in the through hole.

[0048] When folding, the unlocking key 14 is pressed to make the strut 6 in the unlocked state, and the leg 5 is grabbed to be folded inward, the leg 5 drives the first gear 7 to rotate through the first connecting block 20, so that the second gear 8 rotates synchronously, the second connecting block 21 on the second gear 8 drives the strut 6 to be folded inward, and the folding is completed.

[0049] Of course, the strut 6 can also be grabbed to be folded inward, the strut 6 drives the second gear 8 to rotate through the second connecting block 21, so that the first gear 7 rotates synchronously, and the first connecting block 20 on the first gear 7 drives the leg 5 to be folded inward, and the folding is completed.

[0050] When unfolding, the leg 5 is grabbed to be unfolded outward, the leg 5 drives the first gear 7 to rotate through the first connecting block 20, so that the second gear 8 rotates synchronously, the second connecting block 21 on the second gear 8 drives the strut 6 to be unfolded outward, until the first limiting piece 12 is clamped into the limiting hole 13, and the unfolding is completed.

[0051] Of course, the strut 6 can also be grabbed to be unfolded outward, the strut 6 drives the second gear 8 to rotate through the second connecting block 21, so that the first gear 7 rotates synchronously, and the first connecting block 20 on the first gear 7 drives the leg 5 to be unfolded outward, until the first limiting piece 12 is clamped into the limiting hole 13, and the unfolding is completed.

[0052] Example 2:

[0053] This embodiment provides a folding mechanism, such as Figure 4 , Figure 5 As shown, except that the first connecting block 20 on the first gear 7 is replaced by the connecting hole 24 on the support leg 5, everything else is the same as in Embodiment 1. The rotating shaft 9 passes through the connecting hole 24, and the connecting hole 24 is provided with a third plane 25, which cooperates with the first plane 10. The cooperation between the third plane 25 and the first plane 10 allows the rotation of the rotating shaft 9 to drive the support leg 5 to rotate.

[0054] To improve support, three first mounting slots 16 and one second mounting slot 17 are provided. Two support legs 5 and one support rod 6 are provided. The two support legs 5 are located in two of the first mounting slots 16 respectively. The second mounting slot 17 is located in the middle of the three first mounting slots 16. The first mounting slots 16 and the support legs 5 are arranged symmetrically with respect to the second mounting slots 17. The three first mounting slots 16 allow the two support legs 5 to be located in one first mounting slot 16 respectively, preventing them from interfering with each other and increasing the distance between the two support legs 5, resulting in more stable support. The second mounting slot 17 is located in the middle, which means that the support rod 6 is located in the middle of the two support legs 5. The force on the support rod 6 can be distributed to the two support legs 5. At the same time, the support rod 6 is located in the exact middle of the two support legs 5, so that the force can be evenly transmitted to the two support legs 5, making the support more stable and firm. The first mounting slot 16 in the middle is connected to the second mounting slot 17, and the first gear 7 is located in the first mounting slot 16 in the middle.

[0055] Of course, five first mounting slots 16 can also be provided. Five first mounting slots 16 can make the two side legs 5 of each pair of connectors 2 staggered, so that the two side legs 5 can be staggered after folding.

[0056] Example 3:

[0057] This embodiment provides a folding mechanism, such as Figure 12 As shown, in addition to the features described in Embodiment 2, two insertion holes 18 are provided, with the two insertion holes 18 located on both sides of the support rod 6 respectively; a handle 28 is provided on the side of the connector 2 away from the insertion holes 18. The design of two insertion holes 18 allows each pair of connectors 2 to be connected by two crossbars 4, resulting in higher structural strength. The two insertion holes 18 are located on both sides of the support rod 6, resulting in more balanced load bearing. The design of the handle 28 facilitates handling.

[0058] Example 4:

[0059] This embodiment provides a folding mechanism, such as Figure 13 , Figure 14As shown, except that the first limiting piece 12 and the limiting hole 13 are replaced by the limiting female buckle 29 and the limiting male buckle 30, and the unlocking key 14 is deleted, the rest is the same as that in Embodiment 1. The supporting rod 6 is provided with the limiting female buckle 29, and the connecting piece 2 is provided with the limiting male buckle 30 matched with the limiting female buckle 29. In the unfolded state of the supporting rod 6, the limiting male buckle 30 and the limiting female buckle 29 are buckled. The limiting male buckle 30 is in sliding connection with the connecting piece 2, and has a movement tendency towards the limiting female buckle 29, so as to ensure that the limiting male buckle 30 can be automatically buckled when the limiting female buckle 29 is in place.

[0060] In the embodiment, the limiting female buckle 29 is connected with the supporting rod 6, and rotates synchronously with the supporting rod 6. The limiting female buckle 29 is provided with a buckle hole 31. In the unfolded state of the supporting rod 6, part of the limiting male buckle 30 is located in the buckle hole 31 and abuts against the hole wall of the buckle hole 31, so that the buckle hole 31 is blocked by the limiting male buckle 30 and cannot rotate, and the supporting rod 6 cannot be folded and rotates in the locked state, thereby ensuring reliable unfolding. The connecting piece 2 is provided with a sliding groove 32, and part of the limiting male buckle 30 is arranged on the sliding groove 32, so as to ensure reliable movement of the limiting male buckle 30. Part of the limiting male buckle 30 is arranged outside the connecting piece 2, so as to facilitate the user to press the limiting male buckle 30 to release the locking of the supporting rod 6.

[0061] The movement tendency of the limiting male buckle 30 is realized by an elastic piece 33. The elastic piece 33 is a spring. One end of the spring abuts against the limiting male buckle 30, and the other end of the spring abuts against the connecting piece 2.

[0062] The connecting piece 2 is provided with an extension piece 34 extending outward, and the insertion hole 18 is arranged on the extension piece 34. One end of the extension piece 34 towards the connecting piece 2 is in a U shape, and the two sides of the U shape are connected with the connecting piece 2. The insertion hole 18 is located at the end away from the connecting piece 2.

[0063] In the embodiment, the supporting leg 5 is a circular tube, and the supporting leg 5 is arranged on the first connecting block 20. The supporting rod 6 is a circular tube, and the supporting rod 6 is arranged on the second connecting block 21.

[0064] Embodiment 5

[0065] The folding support provided in the embodiment, as shown in Figure 6 , Figure 7 , Figure 8 includes the cross rod 4, the intermediate connecting part 22, and at least two pairs of the folding mechanism described in Embodiment 1. Each pair of the folding mechanism is connected through the cross rod 4, and the cross rods 4 are connected through the intermediate connecting part 22. Through the intermediate connecting part 22, the folding mechanisms can be connected together to form a support for supporting.

[0066] In the embodiment, the folding support is used as a support of a chair, two pairs of folding mechanisms are arranged, two folding mechanisms in the same pair are arranged oppositely, two ends of the horizontal rod 4 are respectively arranged in two plug-in holes 18 of the same pair of folding mechanisms, and the two horizontal rods 4 are rotatably connected. The middle connecting part 22 is a rotatable connecting position between the two horizontal rods 4, and the folding mechanisms are more convenient to fold. The length of the support rod 6 in one pair of folding mechanisms is greater than the length of the support rod 6 in the other pair of folding mechanisms, or the length of the support rod 6 in two adjacent folding mechanisms is greater than the length of the support rod 6 in the remaining two folding mechanisms, so that the chair cloth can be conveniently arranged and a chair surface is formed.

[0067] The second limiting part 26 is further arranged, the second limiting part 26 is used for limiting the rotation range of the horizontal rod 4 and controlling the unfolding size of the folding support, the horizontal rod 4 is rotatably connected with the second limiting part 26, the second limiting part 26 includes a second baffle 27 used for blocking the rotation of the horizontal rod 4, and the horizontal rod 4 is attached to the second baffle 27 in the unfolded state of the horizontal rod 4. The horizontal rod 4 is provided with a bending part in the middle, which can be conveniently attached to the second baffle 27.

[0068] The folding support can also be used as a support of a table, as shown in Figure 9 When the folding support is used as a support of a table, two pairs of folding mechanisms are arranged, two folding mechanisms in the same pair are arranged oppositely, two ends of the horizontal rod 4 are respectively arranged in two plug-in holes 18 of the same pair of connecting parts 2, and the middle connecting part 22 is in the form of two connecting rods, two ends of the connecting rod are respectively connected with the two horizontal rods 4, and a rectangle is formed between the connecting rod and the horizontal rod 4. The lengths of the support rods 6 in the folding mechanisms are the same, and a table top 23 is arranged on the support rod 6.

[0069] Embodiment 6:

[0070] The folding support provided in the embodiment, as shown in Figure 15 includes the horizontal rod 4 and at least two pairs of the folding mechanism described in the embodiment 4, each pair of folding mechanisms is connected through the horizontal rod 4, and the two horizontal rods 4 are connected with each other.

[0071] In the embodiment, the folding support is used as a support of a chair, two pairs of folding mechanisms are arranged, two folding mechanisms in the same pair are arranged oppositely, two ends of the horizontal rod 4 are respectively arranged in two plug-in holes 18 of the same pair of folding mechanisms, and the two horizontal rods 4 are rotatably connected. The length of the support rod 6 in one pair of folding mechanisms is greater than the length of the support rod 6 in the other pair of folding mechanisms, or the length of the support rod 6 in two adjacent folding mechanisms is greater than the length of the support rod 6 in the remaining two folding mechanisms, so that the chair cloth can be conveniently arranged and a chair surface is formed. The folding support can also be used as a support of a table.

[0072] Embodiment 7:

[0073] The folding bed provided in the embodiment, as shown in Figure 10 ,Figure 11 , Figure 16 As shown, the folding mechanism includes any one of the folding mechanisms described in embodiments 1-4, fabric 1, and two bed rods 3. At least two pairs of folding mechanisms are provided, with each pair connected by a crossbar 4. The two bed rods 3 are respectively connected to support rods 6 on both sides; fabric 1 connects the two bed rods 3. The two ends of the crossbar 4 are respectively threaded through two insertion holes 18 of the same pair of folding mechanisms, ensuring a uniform and fixed installation angle of the crossbar 4 and guaranteeing the flatness of the cot. In this embodiment, three pairs of folding mechanisms are provided and arranged at the front, middle, and rear of the bed rods 3, providing support at all three positions of the cot.

[0074] For easy storage, the support rod 6 is detachably connected to the bed rod 3. In this embodiment, the support rod 6 is provided with a slot 19, which cooperates with the bed rod 3. Installation only requires inserting the bed rod 3 into the slot 19, and disassembly only requires pulling the bed rod 3 out of the slot 19, making assembly and disassembly quick and convenient.

[0075] Example 8:

[0076] This embodiment provides a folding bracket, such as Figure 17 As shown, the device includes a crossbar 4, an intermediate connecting portion 22, and at least two pairs of folding mechanisms as described in Embodiment 4. Each pair of folding mechanisms is connected by the crossbar 4, and the crossbars 4 are connected by the intermediate connecting portion 22. The intermediate connecting portion 22 allows the folding mechanisms to be connected together to form a support bracket.

[0077] In this embodiment, the folding bracket is used as a chair support. Two pairs of folding mechanisms are provided, with the two folding mechanisms of the same pair arranged opposite each other. The two ends of the crossbar 4 are respectively inserted into the two insertion holes 18 of the same pair of folding mechanisms. The middle connecting part 22 adopts two connecting rods, and the two ends of the connecting rods are respectively connected to the two crossbars 4. A rectangle is formed between the connecting rods and the crossbars 4.

[0078] Example 9:

[0079] This embodiment provides a folding bracket, such as Figure 18 As shown, it includes a crossbar 4 and four folding mechanisms as described in Embodiment 4, with adjacent folding mechanisms connected to each other by the crossbar 4 to form a rectangle.

[0080] In this embodiment, the folding bracket is used as a support for a chair. The folding mechanism has two insertion holes 18, which face to both sides respectively. The two ends of the crossbar 4 are respectively inserted into the two insertion holes 18 of the adjacent folding mechanism.

[0081] The above merely describes preferred embodiments of the present application, and is not intended to limit the present application in any form. Although the present application has been disclosed with preferred embodiments, it is not intended to limit the present application. Any person skilled in the art can make minor changes or modifications to the disclosed technical content, or make equivalent embodiments with equivalent changes, without departing from the technical solution of the present application. Any modification, equivalent change or modification of the above embodiments, which does not depart from the technical solution of the present application, is still within the scope of the technical solution of the present application.

Claims

1. A folding mechanism, characterized by: The utility model provides a kind of foldable support, including connecting piece (2), support leg (5), brace (6) and limiting mechanism, support leg (5) and brace (6) are rotatably connected with connecting piece (2), support leg (5) and brace (6) are synchronously rotated inwards or synchronously rotated outwards;Connecting piece (2) is equipped with at least one insertion hole (18);Insertion hole (18) is located between support leg (5) and brace (6);Limiting mechanism is used for the rotation limiting of brace (6) or support leg (5) in unfolded state.

2. A folding mechanism according to claim 1, characterised in that: The support leg (5) and the brace (6) are synchronously rotated through the first gear (7) and the second gear (8) engaged with each other, the first gear (7) and the second gear (8) are rotatably connected with the connecting piece (2), the support leg (5) is connected with the first gear (7), and the brace (6) is connected with the second gear (8).

3. A folding mechanism according to claim 2, characterised in that: The first gear (7) and the second gear (8) are rotatably connected with the connecting piece (2) through the rotating shaft (9), the rotating shaft (9) is provided with the first plane (10), the shaft hole of the first gear (7) and the second gear (8) is provided with the second plane (11), and the first plane (10) is attached to the second plane (11).

4. A folding mechanism according to claim 2, wherein: The first gear (7) is provided with the first connecting block (20) extending outward, the second gear (8) is provided with the second connecting block (21) extending outward, the support leg (5) is connected with the first connecting block (20), and the brace (6) is connected with the second connecting block (21).

5. The folding mechanism of claim 1, wherein: The limiting mechanism includes a limiting female buckle (29) and a limiting male buckle (30) matched with the limiting female buckle (29), the limiting female buckle (29) is arranged on the brace (6), the limiting male buckle (30) is arranged on the connecting piece (2), and the limiting male buckle (30) and the limiting female buckle (29) are buckled in the unfolded state of the brace (6); the limiting male buckle (30) is slidably connected with the connecting piece (2), and the limiting male buckle (30) has a movement trend towards the limiting female buckle (29).

6. The folding mechanism of claim 1, wherein: The limiting mechanism includes a first limiting member (12) and a limiting hole (13) matched with the first limiting member (12), the first limiting member (12) is arranged on the brace (6), the limiting hole (13) is arranged on the connecting piece (2), and the first limiting member (12) is used for limiting the rotation of the brace (6) in the unfolded state of the brace (6); the connecting piece (2) is provided with an unlocking key (14) for releasing the rotation limiting of the brace (6), and the unlocking key (14) is matched with the first limiting member (12).

7. The folding mechanism of claim 1, wherein: The connecting piece (2) includes a first baffle (15), the first baffle (15) is located on the side opposite to the insertion hole (18), and the support leg (5) and the brace (6) are located between the first baffle (15) and the insertion hole (18); in the unfolded state of the support leg (5) and / or the brace (6), the support leg (5) and / or the brace (6) are attached to the first baffle (15).

8. The folding mechanism of claim 1, wherein: The connecting piece (2) comprises at least one first mounting groove (16) and at least one second mounting groove (17), the supporting leg (5) is located in the first mounting groove (16), and the supporting rod (6) is located in the second mounting groove (17); the first mounting groove (16) is provided with three, the second mounting groove (17) is provided with one, the supporting leg (5) is provided with two, and the two supporting legs (5) are respectively located in the two first mounting grooves (16); the second mounting groove (17) is located between the two first mounting grooves (16); the first mounting groove (16) is symmetrically arranged relative to the second mounting groove (17); the two plug-in holes (18) are located on the two sides of the supporting rod (6); and the handle (28) is arranged on the side, away from the plug-in hole (18), of the connecting piece (2).

9. A foldable stand, characterized by: The folding mechanism comprises a cross rod (4), an intermediate connecting part (22) and at least two pairs of the folding mechanism according to any one of claims 1-8, each pair of the folding mechanism is connected through the cross rod (4), and the cross rods (4) are connected through the intermediate connecting part (22); or the folding mechanism comprises a cross rod (4) and four folding mechanisms according to any one of claims 1-8, and the folding mechanisms are connected through the cross rod (4) to form a rectangle.

10. A camp bed characterised in that: The folding mechanism comprises the folding mechanism according to any one of claims 1-8.

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