Folding mechanism and bed, table and chair using same

Abstract

The utility model discloses a folding mechanism and a bed, a table and a chair using the folding mechanism, the folding mechanism comprises a cross rod, a supporting leg, a top rod and a connecting piece, the connecting piece comprises a connecting part and side pieces integrally arranged on the two sides of the connecting part; the cross rod is connected with the connecting part, one end of the top rod is rotationally connected with the side piece, one end of the supporting leg is rotationally connected with the side piece, and the rotational connection position of the supporting leg and the side piece is located above the rotational connection position of the top rod and the side piece; an auxiliary rod is rotationally connected between the top rod and the supporting leg; limiting mechanisms are arranged between the supporting legs and the side pieces, after the supporting legs are unfolded, the limiting mechanisms limit the supporting legs, one ends of the supporting legs abut against the ejector rods, and after the supporting legs are folded, the cross rods, the supporting legs and the ejector rods are stacked. The volume is relatively small after folding, and the unfolding is simple and convenient.

Description

Technical Field

[0001] The utility model relates to the field of folding components, in particular to a folding mechanism and a bed, a table and a chair used therein. Background Art

[0002] As people's living standards improve, various furniture used in life have become more intelligent and comfortable. Folding equipment has also been widely used. By setting a motor under the equipment to drive the rotation and lifting of the load-bearing plate, the shape of the equipment can be adjusted according to people's needs to adapt to people's sleeping posture.

[0003] The existing household folding equipment and outdoor products on the market are large in size and heavy in weight. Even after folding, they still occupy a large volume and cannot meet the user's demand for equipment to be as small and thin as possible. The design thickness of the folding frame is generally high, with a general thickness of 120mm to 200mm. In addition, the existing folding equipment has a complex structure, is heavy in weight, and has a high transportation cost. Utility Model Content

[0004] In order to overcome the deficiencies of the prior art, the utility model provides a folding mechanism which has a simple structure, a relatively small volume after folding, and is easy to unfold.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: a folding mechanism, including a cross bar, a leg, a top bar and a connecting piece, the connecting piece including a connecting portion and side pieces integrally arranged on both sides of the connecting portion; the cross bar is connected to the connecting portion, one end of the top bar is rotatably connected to the side piece, one end of the leg is rotatably connected to the side piece, and the rotational connection between the leg and the side piece is located above the rotational connection between the top bar and the side piece; an auxiliary rod is rotatably connected between the top bar and the leg; a limiting mechanism is provided between the leg and the side piece, after unfolding, the limiting mechanism limits the leg, and one end of the leg contacts the top bar, after folding, the cross bar, the leg and the top bar are stacked.

[0006] As a preferred technical solution of the utility model, the connecting portion is provided with a positioning hole and a positioning pin, one end of the cross bar is sleeved in the connecting portion and is limited by the positioning pin and the positioning hole.

[0007] As a preferred technical solution of the utility model, the other end of the supporting leg is sleeved with an anti-slip sleeve.

[0008] As a preferred technical solution of the utility model, there are two auxiliary rods, which are symmetrically arranged on both sides of the top rod.

[0009] As a preferred technical solution of the utility model, the limiting mechanism includes a spring buckle arranged on the supporting leg and a buckle hole arranged on the side piece and cooperating with the spring buckle to limit the position.

[0010] Another object of the utility model is to provide a chair, comprising a fixed plate, a seat surface and four folding mechanisms as described above, the other ends of the four cross bars are connected to the fixed plate, and the four cross bars are evenly distributed circumferentially; the four corners of the seat surface are respectively connected to the other ends of the four top bars.

[0011] As a preferred technical solution of the utility model, a connecting slot is provided on the fixing plate, and the other end of the cross bar is rotatably connected to the connecting slot.

[0012] As a preferred technical solution of the utility model, the four push rods are divided into two groups, each group has two push rods, and the length of the push rods in one group is greater than the length of the push rods in the other group.

[0013] Another object of the utility model is to provide a bed, comprising two bed rods and at least four of the folding mechanisms described above, wherein the two folding mechanisms form a group, and the cross rods in the same group are connected or are an integrated structure; the top rods on the same side are connected to the same bed rod; and a bed surface is connected between the two bed rods.

[0014] Another object of the utility model is to provide a table, comprising a tabletop and four folding mechanisms as described above, the other ends of the four cross bars being connected, and the tabletop being connected to the other end of the top bar.

[0015] As a preferred technical solution of the utility model,

[0016] Compared with the prior art, the utility model can achieve the following beneficial effects:

[0017] 1. In the present device, through the combined structure of the support assembly and the fixed plate, the user can first combine and connect the fixed plate and the support assembly, sleeve the cross bar and the connecting part, and connect and fix the cross bar, the legs and the top rod to the connecting part and the side piece through multiple groups of connecting pins, and then sleeve one end of the cross bar in the connecting slot, and connect and fix it through four groups of cross bars between the connecting columns, and contact the ground through the anti-slip sleeve structure at the bottom. The present device can achieve support through the four groups of anti-slip sleeve structures at the bottom, and because two groups of positioning pins are provided between the legs and the connecting piece, a fixed structure is formed, which cannot be deflected, and the top rod-side piece is connected by a positioning pin, and the auxiliary rod provided between the top rod and the legs can also achieve angular deflection (angle deflection is performed around the positioning pin connecting the auxiliary rod and the legs as the center of the circle), which is convenient for connection and fixation with different structures.

[0018] 2. In this device, the top rod structure can be connected and fixed with the hinge seat, and then the combined structure can be movably connected with the bottom of the bearing surface of the bed, table and chair. First, it can improve the deformation effect of the above three groups of structures and is suitable for users of different body shapes. Second, it is convenient for the combined connection and fixation of this device and the above structures. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the folding mechanism of the utility model;

[0020] Figure 2 It is an exploded view of the folding mechanism of the utility model;

[0021] Figure 3 It is a schematic diagram of the structure of the folding mechanism of the utility model after folding;

[0022] Figure 4 It is a structural schematic diagram of the chair of the utility model;

[0023] Figure 5 A schematic diagram of the chair of the utility model from another direction;

[0024] Figure 6 This is a structural schematic diagram of the utility model chair with the crossbar disassembled;

[0025] Figure 7 This is a schematic diagram of the structure of the chair of the utility model after being stored;

[0026] Figure 8 This is a schematic diagram of the structure of the bed of the utility model;

[0027] Fig. 9 It is a structural schematic diagram of the table of the utility model.

[0028] Among them: 1. fixing plate; 11. connecting column; 12. connecting slot; 2. bed pole; 3. bed surface; 4. table top; 21. cross bar; 22. supporting leg; 23. top bar; 24. connecting piece; 241. connecting part; 242. side piece; 243. positioning hole; 244. positioning pin; 245. spring buckle; 246. buckle hole; 25. auxiliary rod; 26. anti-slip sleeve. DETAILED DESCRIPTION

[0029] In order to make the technical means, creative features, purpose and efficacy of the utility model easy to understand, the utility model is further described below in conjunction with specific embodiments, but the following embodiments are only preferred embodiments of the utility model, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the scope of protection of the utility model. The experimental methods in the following embodiments are conventional methods unless otherwise specified, and the materials, reagents, etc. used in the following embodiments are all commercially available unless otherwise specified.

[0030] Embodiment one:

[0031] like Figure 1-3As shown, a folding mechanism includes a cross bar 21, a leg 22, a top bar 23 and a connecting piece 24, wherein the connecting piece 24 includes a connecting portion 241 and side pieces 242 integrally arranged on both sides of the connecting portion 241; the cross bar 21 is connected to the connecting portion 241, the cross bar 21 is a square tube, and the connecting portion 241 is provided with a square hole sleeved with the cross bar 21, one end of the top bar 23 is rotatably connected to the side piece 242, one end of the leg 22 is rotatably connected to the side piece 242, and the rotatable connection between the leg 22 and the side piece 242 is located above the rotatable connection between the top bar 23 and the side piece 242; an auxiliary rod 25 is rotatably connected between the top bar 23 and the leg 22; a limiting mechanism is provided between the leg 22 and the side piece 242, after unfolding, the limiting mechanism limits the leg 22, and one end of the leg 22 conflicts with the top bar 23, after folding, the cross bar 21, the leg 22 and the top bar 23 are stacked.

[0032] The connection portion 241 is provided with a positioning hole 243 and a positioning pin 244 . One end of the cross bar 21 is sleeved in the connection portion 241 and is limited by the positioning pin 244 and the positioning hole 243 .

[0033] The other end of the support leg 22 is sleeved with an anti-slip sleeve 26 .

[0034] There are two auxiliary rods 25 symmetrically arranged on both sides of the top rod 23 .

[0035] The limiting mechanism includes a spring buckle 245 disposed on the supporting leg 22 and a buckle hole 246 disposed on the side piece 242 and cooperating with the spring buckle 245 for limiting the position.

[0036] Embodiment two:

[0037] like Figure 4-7 As shown, the utility model provides a chair, including a fixed plate 1, a seat surface and a folding mechanism. The fixed plate 1 is connected to four folding mechanisms so that the unfolding state of the folding mechanisms can be restricted. The seat surface is arranged on the folding mechanism so that the folding mechanism has the function of carrying people.

[0038] The folding mechanism includes a cross bar 21, a leg 22, a top bar 23 and a connecting member 24. The cross bar 21, the leg 22 and the top bar 23 all have one end located in the connecting member 24. The connecting member 24 includes a connecting portion 241 and side pieces 242 integrally arranged on both sides of the connecting portion 241. One end of the top bar 23 is rotatably connected to the side piece 242. The leg 22 is also rotatably connected to the side piece 242. The rotational connection position of the leg 22 is located above the rotational connection position of the top bar 23. The top bar 23 is connected to the leg 2 2, an auxiliary rod 25 is symmetrically connected between the legs 2, so that the two ends of the auxiliary rod 25 are respectively hinged on the side wall of the top rod 23 and the side wall of the leg 22, and the leg 22 is also connected with a spring buckle 245, and a buckle hole 246 for cooperating with the spring buckle 245 is opened on the side piece 242, so that the spring buckle 245 on the leg 22 can be inserted into the buckle hole 246 on the side piece 242, thereby limiting the position of the leg 22. After the position of the leg 22 is limited, the position of the top rod 23 connected to the leg 22 is also limited.

[0039] The cross bar 21 is plugged into the connecting part 241, and positioning holes 243 are provided on the connecting part 241 and the side piece 242. A positioning pin 244 is inserted into the positioning hole 243, so that the connecting part 241 and the side piece 242 are tightly connected through the positioning hole 243 and the positioning pin 244, thereby limiting the position of the cross bar 21. The cross bar 21 is sleeved with an anti-slip sleeve 26 at the end away from the connecting part 241.

[0040] The fixing plate 1 is circular, and a connecting column 11 is integrally connected to the middle of the bottom end of the fixing plate 1. A connecting slot 12 is also integrally connected to the bottom end of the fixing plate 1. Four connecting slots 12 are evenly distributed around the connecting column 11. The folding mechanism is inserted into the connecting slot 12 through the end of the cross bar 21 away from the connecting member 24. The four cross bars 21 on the four folding mechanisms are respectively plugged into the four connecting slots 12 on the fixing plate 1. Elastic ropes are also connected between the cross bars 21 and the connecting column 11. The elastic ropes limit the cross bars 21 and the connecting column 11. The distance between them makes it possible for the elastic rope to keep the cross bar 21 connected to the connecting column 11 of the fixed disk 1 at all times when the cross bar 21 rotates in a direction perpendicular to the fixed disk 1, so that the cross bar 21 and the fixed disk 1 can be accurately and conveniently folded or unfolded, and the side wall height of the connecting slot 12 near the connecting column 11 is greater than the side wall height of the connecting slot 12 far from the connecting column 11, so that when the cross bar 21 is connected to the connecting slot 12, the cross bar 21 is limited by the connected slot 12, and when the cross bar 21 and the fixed disk 1 are folded, the cross bar 21 is also effectively limited.

[0041] The four top rods 23 are divided into two groups, each group consists of two top rods 23, and the length of one group of top rods 23 is greater than the length of the other group of top rods 23. The seat surface is sleeved on the four top rods 23 on the four folding mechanisms. The two longer top rods 23 support the seat surface to become a chair back, and the two shorter top rods 23 serve as supporting parts of the seat, so that the user can sit on the seat surface that is supported by the four folding mechanisms.

[0042] Furthermore, in this embodiment, the elastic rope can be other elastic members, and it is only necessary to make the cross bar 21 foldable on the fixed plate 1.

[0043] Furthermore, in this embodiment, the top rod 23 can be connected and fixed to the hinge seat, so that the upper end of the top rod can not only be connected to the chair surface, but also can be hinged to the bottom of other load-bearing surfaces such as beds, tables and chairs for movably connected. This can not only improve the deformation effect of the above three groups of structures, and be suitable for users of different body shapes, but also facilitate the combined connection and fixation of the device and the above structures.

[0044] Furthermore, in this embodiment, the end of each set of legs 22 is sleeved with an anti-slip sleeve 26 .

[0045] Furthermore, in this embodiment, a connecting rod structure can be fixed on the outer side of the connecting column 11, so that one end of the connecting column 11 is fixedly connected to the cross bar 21 through the positioning column, and the connecting slot 12 is a hollow structure with no surface at one end and a frame-shaped cross-section.

[0046] The device can achieve support through the four groups of anti-slip sleeves 26 structures at the bottom, and because a positioning pin 244 is provided between the leg 22 and the connecting piece 24, a fixed structure is formed and cannot be deflected. The top rod 23-side piece 242 is connected by a positioning pin 24, and an auxiliary rod 25 is provided between the top rod 23 and the leg 22, which can also achieve angular deflection (angle deflection is performed around the positioning pin 244 connecting the auxiliary rod 25 and the leg 22 as the center of the circle), which is convenient for connection and fixation with different structures.

[0047] Embodiment three:

[0048] like Figure 8 As shown, a bed comprises two bed rods 2 and the above-mentioned folding mechanism, the two folding mechanisms form a group, the cross rods 21 in the same group are connected or are an integrated structure; the top rods 23 on the same side are all connected to the same bed rod 2; and a bed surface 3 is connected between the two bed rods 2.

[0049] Embodiment 4:

[0050] like Fig. 9 As shown, a table includes a tabletop 4 and the above-mentioned folding mechanism, the other ends of the four crossbars 21 are connected, and the tabletop 4 is connected to the other end of the top rod 23.

[0051] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A folding mechanism, characterized in that: The invention comprises a cross bar (21), a leg (22), a top bar (23) and a connecting member (24); the connecting member (24) comprises a connecting portion (241) and side pieces (242) integrally arranged on both sides of the connecting portion (241); the cross bar (21) is connected to the connecting portion (241); one end of the top bar (23) is rotatably connected to the side piece (242); one end of the leg (22) is rotatably connected to the side piece (242); and the leg (22) is rotatably connected to the side piece (242). 42) The rotation connection is located above the rotation connection between the top rod (23) and the side plate (242); an auxiliary rod (25) is rotationally connected between the top rod (23) and the supporting leg (22); a limiting mechanism is provided between the supporting leg (22) and the side plate (242); after unfolding, the limiting mechanism limits the supporting leg (22), and one end of the supporting leg (22) contacts the top rod (23); after folding, the cross bar (21), the supporting leg (22) and the top rod (23) are stacked.

2. A folding mechanism according to claim 1, characterized in that: The connecting portion (241) is provided with a positioning hole (243) and a positioning pin (244); one end of the cross bar (21) is sleeved in the connecting portion (241) and is limited in position by the positioning pin (244) and the positioning hole (243).

3. A folding mechanism according to claim 1, characterized in that: The other end of the supporting leg (22) is sleeved with an anti-slip sleeve (26).

4. A folding mechanism according to claim 1, characterized in that: There are two auxiliary rods (25) symmetrically arranged on both sides of the top rod (23).

5. A folding mechanism according to claim 1, characterized in that: The limiting mechanism comprises a spring buckle (245) arranged on the supporting leg (22) and a buckle hole (246) arranged on the side piece (242) and cooperating with the spring buckle (245) for limiting the position.

6. A chair, characterized in that: It comprises a fixed plate (1), a seat surface and four folding mechanisms as described in any one of claims 1 to 5, wherein the other ends of the four cross bars (21) are connected to the fixed plate (1), and the four cross bars (21) are evenly distributed in the circumferential direction; the four corners of the seat surface are respectively connected to the other ends of the four top bars (23).

7. A chair according to claim 6, characterized in that: The fixed disk (1) is provided with a connecting slot (12), and the other end of the cross bar (21) is rotatably connected to the connecting slot (12), so that the position of the cross bar (21) is limited by the connecting slot (12); an elastic member may also be connected between the fixed disk (1) and the cross bar (21).

8. A chair according to claim 6, characterized in that: The four push rods (23) are divided into two groups, each group consists of two push rods (23), and the length of the push rods (23) in one group is greater than the length of the push rods (23) in the other group.

9. A bed, characterized in that: The invention comprises two bed rods (2) and at least four folding mechanisms as described in any one of claims 1 to 5, wherein the two folding mechanisms form a group, and the cross rods (21) in the same group are connected or are an integrated structure; the top rods (23) on the same side are all connected to the same bed rod (2); and a bed surface (3) is connected between the two bed rods (2).

10. A table, characterized in that: It comprises a tabletop (4) and four folding mechanisms as described in any one of claims 1 to 5, the other ends of the four crossbars (21) are connected, and the tabletop (4) is connected to the other end of the top rod (23).

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