Folding bed
By using a multi-vertical support frame and side frame linkage assembly design, combined with a limiting structure and sliding guide groove, the problem of complex structure and cumbersome operation of existing folding beds is solved, realizing simple and convenient folding operation and miniaturized storage.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-05
- Publication Date
- 2026-03-20
AI Technical Summary
Existing folding beds have complex frame structures and cumbersome folding operations, which reduces the user experience.
The design employs multiple vertical support frames and side frames, and uses a linkage assembly to realize the unfolding and folding state conversion of the folding bed. The limiting structure and sliding guide groove ensure simple operation. The linkage assembly slides and rotates on the vertical support frame to achieve automatic unlocking and folding.
The folding bed features a simple structure, convenient operation, small size after folding for easy storage, a neat and beautiful appearance, and good stability when unfolded.
Smart Images
Figure CN224008138U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a folding bed. BACKGROUND
[0002] In the prior art, part of the bed frame has folding function, for example, some baby beds, play beds can be folded to reduce the volume of the bed frame after folding, so as to achieve the effect of convenient carrying and storage, but most of the bed frame structure is complex, the folding principle is complex, and the folding operation is tedious, which reduces the user experience. SUMMARY
[0003] The utility model aims at providing a new folding bed.
[0004] In order to achieve the above-mentioned purpose, the utility model adopts the technical scheme of: a folding bed has an unfolded state and a folded state, the folding bed comprises a plurality of vertical support frames and a side wall frame arranged between two adjacent vertical support frames;
[0005] The side wall frame comprises a connecting seat and two groups of connecting rod assemblies, one group of connecting rod assemblies is arranged between the connecting seat and the two vertical support frames, wherein the connecting rod assembly comprises a first connecting rod, the first connecting rod has a first end and a second end arranged at different ends of the length direction, the first end is rotatably connected to the connecting seat, and the second end is rotatably and slidably connected to the vertical support frame;
[0006] When the folding bed is in the unfolded state, the two groups of connecting rod assemblies are unfolded relative to the two vertical support frames, when the folding bed is in the folded state, the two vertical support frames are folded relative to each other, the first connecting rod is folded relative to the vertical support frame, and the two groups of connecting rod assemblies are folded between the two vertical support frames.
[0007] In some embodiments, the vertical support frame is provided with a limiting structure, the second end is provided with a rotating shaft, the rotating shaft is movable relative to the vertical support frame between a first position and a second position, when the rotating shaft is in the first position, the first connecting rod is engaged with the limiting structure to limit the relative rotation of the first connecting rod and the vertical support frame, and the first connecting rod is supported between the vertical support frame and the connecting seat, when the rotating shaft is in the second position, the first connecting rod is disengaged from the limiting structure to make the first connecting rod rotate relative to the vertical support frame.
[0008] In some embodiments, a sliding groove is arranged on the vertical support frame and is adapted to the rotating shaft, and in the unfolded state, the sliding groove extends along a direction parallel or collinear to the extension direction of the first connecting rod; the limiting structure comprises a limiting groove arranged on the vertical support frame, and in the unfolded state, the limiting groove is arranged open along a direction parallel or collinear to the extension direction of the first connecting rod, and the first connecting rod is provided with a limiting piece arranged in cooperation with the limiting structure; and the limiting piece and the rotating shaft are arranged spaced apart in the extension direction of the first connecting rod.
[0009] When the rotating shaft is in the first position, the limiting piece is inserted and positioned into the limiting groove; under the cooperation of the rotating shaft and the limiting piece, the first connecting rod is supported on the vertical support frame; when the rotating shaft is in the second position, the limiting piece moves to be disengaged from the limiting groove, and the first connecting rod can rotate relative to the vertical support frame.
[0010] In some embodiments, the limiting groove is recessed on the side wall of the vertical support frame, and the side wall of the vertical support frame further has a rotating guide groove in communication with the limiting groove, and when the first connecting rod rotates relative to the vertical support frame, the limiting piece slides along the rotating guide groove. Preferably, the rotating guide groove is entirely arc-shaped. Preferably, the length extension direction of the sliding groove is collinearly extended with the extension direction of the limiting groove, and when the first connecting rod translates relative to the vertical support frame along the length direction thereof, switching between the first position and the second position is achieved.
[0011] In some embodiments, in the length extension direction of the first connecting rod, the first position is adjacent to the first end portion relative to the second position, or the first position is away from the first end portion relative to the second position.
[0012] In some embodiments, the first end portion is rotatably connected to the connecting seat about a rotation axis, the connecting seat is provided with a guide groove with the rotation axis as the rotation center line, and the first connecting rod is further provided with a guide piece slidingly fitted into the guide groove; and / or, in the unfolded state of the folding bed, the first connecting rods in the two groups of connecting rod assemblies on the same side wall frame extend along the same length direction.
[0013] In some embodiments, the side wall frame is arranged between the upper portions of a plurality of vertical support frames, and in the process of switching the folding bed between the unfolded state and the folded state, the spacing between the lower portions of the plurality of vertical support frames changes, the vertical support frames deflect relative to the side wall frame, so that the rotating shaft switches from the first position to the second position; the folding bed further comprises a connecting mechanism arranged between the lower portions of the plurality of vertical support frames, and the connecting mechanism is configured to enable the lower portions of the plurality of vertical support frames to move closer to or away from each other.
[0014] In some embodiments, the linkage assembly further includes a second linkage, one end of which is rotatably connected to the vertical support frame and the other end of which is rotatably connected to the connecting seat, wherein the first linkage and the second linkage are parallel to each other and arranged one above the other.
[0015] In some embodiments, all the vertical support frames are distributed sequentially and spaced apart along the circumference, and a side frame is provided between any two adjacent vertical support frames. When the folding bed is in the unfolded state, all the side frames and the vertical support frames form a frame-shaped space along the circumference. When the folding bed is in the folded state, all the vertical support frames are close to each other, and any side frame is folded together between two adjacent vertical support frames along the length direction.
[0016] In some embodiments, the vertical support frame includes a vertical pole extending in a vertical direction and a mounting base fixed on the vertical pole, wherein the first connecting rod is connected to the mounting base; wherein there are four vertical support frames, four sets of side frames, and the mounting base has two seats arranged perpendicularly to each other, and two adjacent sets of side frames are correspondingly connected to the two seats.
[0017] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art: The folding bed of this utility model has a simple structure. By driving the relative folding or unfolding of the side frame and the vertical support frame, the folding bed can be switched between the unfolded state and the folded state. At the same time, when the lower ends of the vertical support frame approach each other and the vertical support frame tilts, the first connecting rod can slide on the vertical support frame, thereby making each side frame automatically unlock and rotate and fold relative to the vertical support frame, making the folding operation convenient. Attached Figure Description
[0018] Appendix Figure 1 This is a three-dimensional structural diagram of the folding bed according to Embodiment 1 of this utility model;
[0019] Appendix Figure 2 For the appendix Figure 1 A diagram from another perspective;
[0020] Appendix Figure 3 For the appendix Figure 1 Front view;
[0021] Appendix Figure 4 For the appendix Figure 3 Enlarged view of point A in the middle;
[0022] Appendix Figure 5 For the appendix Figure 3 Enlarged view of point B in the middle;
[0023] Figure 1 is a perspective view of a folding bed according to an embodiment of the present application; Figure 6 Figure 2 is a schematic view of the first step of the folding process of the folding bed of Figure 1 ;
[0024] Figure 3 is a schematic view of the second step of the folding process of the folding bed of Figure 1 ; Figure 7 Figure 4 is a schematic view of the third step of the folding process of the folding bed of Figure 1 ; Figure 6 Figure 5 is a schematic view of the fourth step of the folding process of the folding bed of Figure 1 ;
[0025] Figure 6 is a schematic view of the fifth step of the folding process of the folding bed of Figure 1 ; Figure 8 Figure 7 is a perspective view of the folding bed of Figure 1 in the process of folding;
[0026] Figure 8 is a schematic view of the sixth step of the folding process of the folding bed of Figure 1 ; Figure 9 Figure 9 is a schematic view of the seventh step of the folding process of the folding bed of Figure 1 ; Figure 8 Figure 10 is a front view of the folding bed of Figure 1 ;
[0027] Figure 11 is a schematic view of the eighth step of the folding process of the folding bed of Figure 1 ; Figure 10 Figure 12 is a schematic view of the ninth step of the folding process of the folding bed of Figure 1 ; Figure 9 Figure 13 is a schematic view of the tenth step of the folding process of the folding bed of Figure 1 ;
[0028] Figure 14 is a perspective view of the folding bed of Figure 1 in the folded state; Figure 11 Figure 15 is a front view of the folding bed of Figure 1 in the folded state;
[0029] Figure 16 is a schematic view of the eleventh step of the folding process of the folding bed of Figure 1 ; Figure 12 Figure 17 is a schematic view of the twelfth step of the folding process of the folding bed of Figure 1 ; Figure 11 Figure 18 is a front view of the folding bed of Figure 1 ;
[0030] Figure 19 is a schematic view of the thirteenth step of the folding process of the folding bed of Figure 1 ; Figure 13 Figure 20 is a front view of the folding bed of Figure 1 according to an embodiment of the present application;
[0031] Figure 21 is a schematic view of the fourteenth step of the folding process of the folding bed of Figure 1 ; Figure 14 Figure 22 is a schematic view of the fifteenth step of the folding process of the folding bed of Figure 1 ; Figure 13 Figure 23 is a schematic view of the sixteenth step of the folding process of the folding bed of Figure 1 ; Figure 24 is a schematic view of the seventeenth step of the folding process of the folding bed of Figure 1 ;
[0032] Wherein: 1, vertical support frame; 11, vertical rod; 12, mounting seat; 120, seat body; 121, guide groove; 1211, limiting groove; 1212, rotating guide groove; 122, sliding groove; 2, side wall frame; 21, connecting seat; 211, guide groove; 22, second connecting rod; 221, first shaft; 222, second shaft; 23, first connecting rod; 231, rotating shaft; 232, limiting member; 233, rotating shaft; 234, guide member; 3, connecting mechanism; 31, support rod; 32, fixed seat. DETAILED DESCRIPTION
[0033] The technical scheme of the present application will be further described below in combination with the drawings and specific embodiments.
[0034] Embodiment 1
[0035] Reference is made to the accompanying drawings and specific embodiments to further describe the technical scheme of the present application. Figures 1 to 3The folding bed shown has an unfolded state and a folded state, and comprises a plurality of vertical support frames 1 and a side frame 2 arranged between two adjacent vertical support frames 1. The side frame 2 comprises a connecting seat 21 and two sets of connecting rod assemblies, and each set of connecting rod assemblies is arranged between the connecting seat 21 and two vertical support frames 1. The connecting rod assembly comprises a first connecting rod 23. The first connecting rod 23 has a first end and a second end arranged at different ends of the length direction of the first connecting rod 23. The first end is rotatably connected to the connecting seat 21, and the second end is rotatably and slidably connected to the vertical support frame 1.
[0036] When the folding bed is in the unfolded state, the two sets of connecting rod assemblies are unfolded relative to the two vertical support frames 1 to maintain the structure of the folding bed. When the folding bed is in the folded state, the two vertical support frames 1 are folded relative to each other, the first connecting rod 23 is rotated relative to the vertical support frame 1 to fold the two sets of connecting rod assemblies between the two vertical support frames 1.
[0037] Specifically, all the vertical support frames 1 are arranged in a circumferential sequence and are spaced apart, and each adjacent two vertical support frames 1 are provided with a side frame 2. When the folding bed is in the unfolded state, all the side frames 2 and the vertical support frames 1 are circumferentially arranged to form a frame-shaped space. When the folding bed is in the folded state, all the vertical support frames 1 are close to each other, and each side frame 2 is folded along the length direction between the two adjacent vertical support frames 1, and the size of the folding bed is greatly reduced, which is convenient for storage and arrangement.
[0038] In the embodiment, the vertical support frame 1 comprises a vertical rod 11 extending in the up-down direction, a mounting seat 12 fixed to the vertical rod 11, and the first connecting rod 23 connected to the mounting seat 12. Referring to Figure 1 、 Figure 2 In the embodiment, the vertical support frame 1 has four vertical support frames 1, the side frame 2 has four sets of side frames 2, the mounting seat 12 has two seat bodies 120 arranged perpendicular to each other, and the two adjacent sets of side frames 2 are correspondingly connected to the two seat bodies 120. In the unfolded state, the side frame 2 and the vertical support frame 1 are circumferentially arranged to form a rectangular frame-shaped space.
[0039] In the embodiment, the vertical support frame 1 is provided with a limiting structure, and the second end portion is provided with a rotating shaft 231. The rotating shaft 231 has a first position and a second position on the vertical support frame 1. Specifically, the rotating shaft 231 has a first position and a second position on the seat body 120. When the rotating shaft 231 is in the first position, the first connecting rod 23 is engaged with the limiting structure to limit the relative rotation of the first connecting rod 23 and the vertical support frame 1. The first connecting rod 23 is fixed relative to the vertical support frame 1, and the first connecting rod 23 is supported between the vertical support frame 1 and the connecting seat 21 to stabilize the folding bed in the unfolded state. When the rotating shaft 231 is in the second position, the first connecting rod 23 is disengaged from the limiting structure to enable the first connecting rod 23 to rotate relative to the vertical support frame 1 about the rotating shaft 231. The folding bed can be converted between the unfolded state and the folded state.
[0040] In the embodiment, the first connecting rod 23 is translated along the length direction of the first connecting rod 23 to switch the rotating shaft 231 between the first position and the second position. Specifically, the vertical support frame 1 is provided with a sliding groove 122 adapted to the rotating shaft 231. The sliding groove 122 guides the sliding of the rotating shaft 231. As shown in Figure 4 The sliding groove 122 is provided on the seat body 120, and the sliding groove 122 extends along the extension direction of the first connecting rod 23. In the embodiment, the first position and the second position are located at different sides of the length direction of the sliding groove 122. The rotating shaft 231 can be switched between the first position and the second position during the sliding in the sliding groove 122.
[0041] In some embodiments, the first position is closer to the first end portion than the second position along the length extension direction of the first connecting rod 23. When the first connecting rod 23 is close to the vertical support frame 1, the rotating shaft 231 can be switched to the second position. In other embodiments, the first position is away from the first end portion than the second position. When the first connecting rod 23 is away from the vertical support frame 1, the rotating shaft 231 can be switched to the second position.
[0042] In the embodiment, as shown in Figure 7 The second position is located at the side of the sliding groove 122 close to the vertical support frame 1. As shown in Figure 4 The first position is located at the side of the sliding groove 122 away from the vertical support frame 1. In the unfolded state, the rotating shaft 231 is located at the side of the sliding groove 122 away from the vertical support frame 1. When the first connecting rod 23 is close to the vertical support frame 1 along the length direction, the rotating shaft 231 can be switched to the second position.
[0043] In the embodiment, the limiting structure comprises a limiting groove 1211 arranged on the vertical support frame 1. In the unfolded state, the limiting groove 1211 is arranged open along the extension direction of the first connecting rod 23, and the limiting groove 1211 constitutes the limiting structure. The first connecting rod 23 is provided with a limiting piece 232 matched with the limiting structure.
[0044] In the embodiment, the limiting piece 232 and the rotating shaft 231 are arranged in the length extension direction of the first connecting rod 23. When the rotating shaft 231 is in the first position, the limiting piece 232 is inserted and positioned in the limiting groove 1211. Under the joint action of the rotating shaft 231 and the limiting piece 232, the first connecting rod 23 is supported on the vertical support frame 1. When the rotating shaft 231 is in the second position, the limiting piece 232 moves out of the limiting groove 1211, and the first connecting rod 23 can rotate relative to the vertical support frame 1.
[0045] In the embodiment, the limiting groove 1211 is concavely arranged on the side wall of the vertical support frame 1. The side wall of the vertical support frame 1 further has a rotating guide groove 1212 communicated with the limiting groove 1211. When the first connecting rod 23 rotates relative to the vertical support frame 1, the limiting piece 232 slides along the rotating guide groove 1212. When the rotating shaft 231 is in the first position, the limiting piece 232 is located in the limiting groove 1211, and the groove wall of the limiting groove 1211 prevents the rotating shaft 231 from rotating, thereby limiting the rotating shaft 231. When the rotating shaft 231 is in the second position, the limiting piece 232 is located in the rotating guide groove 1212, and the limiting piece 232 can slide in the rotating guide groove 1212 and enable the first connecting rod 23 to rotate. Specifically, the rotating guide groove 1212 is arc-shaped as a whole. When the rotating shaft 231 is in the second position, the center line of rotation of the rotating guide groove 1212 and the axis line of the rotating shaft 231 extend in line, at this time, the limiting piece 232 can slide along the rotating guide groove 1212, and the first connecting rod 23 can rotate around the rotating shaft 231.
[0046] In the embodiment, the length extension direction of the sliding groove 122 and the length extension direction of the limiting groove 1211 extend in parallel or in line. When the first connecting rod 23 translates relative to the vertical support frame 1 along the length direction thereof, the limiting piece 232 can also move from the limiting groove 1211 into the rotating guide groove 1212, thereby releasing the fixation between the first connecting rod 23 and the vertical support frame 1.
[0047] In the embodiment, during the process that the first connecting rod 23 relatively approaches the vertical support frame 1 along the length direction thereof, the limiting piece 232 can move into the rotating guide groove 1212. Specifically, referring to Figure 4As shown, the limiting groove 1211 is located on the side of the sliding groove 122 close to the connecting seat 21, and the limiting groove 1211 is connected to the rotating guide groove 1212 close to the end of the vertical support frame 1. In this way, during the process of the first connecting rod 23 approaching the vertical support frame 1, the rotating shaft 231 is converted to the second position, and the limiting piece 232 moves to the rotating guide groove 1212. In some preferred embodiments, the length of the sliding groove 122 is consistent with the length of the limiting groove 1211, and when the sliding groove 122 is converted to the second position, the limiting piece 232 also enters the rotating guide groove 1212.
[0048] In this embodiment, the limiting groove 1211 and the rotating guide groove 1212 together constitute a guide groove 121 that provides guidance for the movement of the limiting piece 232, see Figure 4 As shown, the guide groove 121 is provided on the vertical support frame 1, specifically, the guide groove 121 is provided on the seat body 120, and the limiting piece 232 is slidingly fitted in the guide groove 121. The rotating guide groove 1212 serves to guide the movement of the limiting piece 232, so as to limit the rotating direction of the first connecting rod 23 relative to the vertical support frame 1, and ensure that the folding chair is correctly folded. In this embodiment, the mounting seat 12 is fixedly provided on the upper part of the vertical rod 11, and the side wall frame 2 is provided between the upper parts of the plurality of vertical support frames 1. During the conversion between the unfolded state and the folded state of the folding bed, the connecting rod assembly is flipped downward and folded relative to the vertical support frame 1. See Figure 4 As shown, the rotating guide groove 1212 is curved downward from the end of the limiting groove 1211 away from the connecting seat 21, so that the first connecting rod 23 can only rotate downward relative to the vertical support frame 1 and be folded relative to the vertical support frame 1, and the upward rotation of the first connecting rod 23 relative to the vertical support frame 1 is prevented. In this embodiment, the rotating guide groove 1212 is in the shape of a quarter of a circle, which is used to limit the length of the movement path of the limiting piece 232, thereby limiting the rotation angle of the first connecting rod 23.
[0049] In some embodiments, the first end portion is rotatably connected to the connecting seat 21 about the rotating shaft 233, the connecting seat 21 is provided with a guide groove 211, the guide groove 211 has the axis of the rotating shaft 233 as the rotation center line, and the first connecting rod 23 is further provided with a guide piece 234 slidingly fitted in the guide groove 211. Through the cooperation between the guide groove 211 and the guide piece 234, the rotating direction of the first connecting rod 23 relative to the connecting seat 21 is limited, so as to guide the two groups of first connecting rods 23 on both sides of the connecting seat 21 to be correctly folded. See Figure 5As shown, in the embodiment, the guide groove 211 is in the shape of a quarter of a circular arc, and the guide groove 211 is located on the upper side of the rotating shaft 233 and on the side of the rotating shaft 233 close to the second end portion. Under the guidance of the guide groove 211, the first connecting rod 23 can only rotate upward relative to the connecting seat 21. In the folding process, the first connecting rods 23 on both sides drive the connecting seat 21 to move downward, and the first connecting rods 23 on both sides are relatively folded upward of the connecting seat 21.
[0050] In some embodiments, the distance between the lower portions of the plurality of vertical support frames 1 changes during the conversion of the folding bed between the unfolded state and the folded state, the vertical support frames 1 deflect relative to the side enclosure 2, and the rotating shaft 231 switches from the first position to the second position. In the embodiment, during the folding process, the lower portions of the plurality of vertical support frames 1 are relatively close, the upper portions of the vertical support frames 1 are relatively close to the first connecting rod 23, so that the rotating shaft 231 switches to the second position, and the limiting piece 232 moves into the rotating guide groove 1212.
[0051] In the embodiment, the connecting rod assembly further includes a second connecting rod 22, one end of the second connecting rod 22 is rotatably connected to the vertical support frame 1, and the other end of the second connecting rod 22 is rotatably connected to the connecting seat 21, and the second connecting rod 22, the first connecting rod 23, the vertical support frame 1 and the connecting seat 21 form a four-bar linkage mechanism, and the four-bar linkage mechanism can drive the side enclosure 2 and the vertical support frame 1 to unfold or fold relative to each other.
[0052] In the embodiment, as shown in Figure 4 , Figure 5 As shown, one end of the second connecting rod 22 is rotatably connected to the vertical support frame 1 about a first shaft 221, and specifically, the second connecting rod 22 is rotatably connected to the seat body 120 about the first shaft 221, the other end of the second connecting rod 22 is rotatably connected to the connecting seat 21 about a second shaft 222, and the axis of the first shaft 221, the axis of the second shaft 222, the axis of the rotating shaft 231 and the axis of the rotating shaft 233 are parallel to each other. During the process of changing the distance between the lower portions of the plurality of vertical support frames 1, the upper portions of the vertical support frames 1 deflect relative to the connecting rod assembly about the first shaft 221, and the seat body 120 slides relative to the first connecting rod 23, so that the rotating shaft 231 slides along the sliding groove 122, and the limiting piece 232 slides along the limiting groove 1211.
[0053] In the embodiment, the second connecting rod 22 is located above the first connecting rod 23, and during the conversion of the folding bed between the unfolded state and the folded state, as shown in Figure 6 , Figure 7As shown, by driving the lower portions of the plurality of vertical support frames 1 to move closer to each other, the vertical support frames 1 are deflected downward around the first shaft 221 to the linkage assembly, and the seat body 120 is rotated around the first shaft 221 and moved closer to the first link 23, so as to drive the rotating shaft 231 to switch to the second position, and drive the limiting member 232 to move into the rotating guide groove 1212.
[0054] In some preferred embodiments, in the unfolded state, the sliding groove 122 and the extending direction of the limiting groove 1211 form an angle with the horizontal direction, so that in the process of deflection of the vertical support frame 1, the limiting member 232 can more smoothly move from the limiting groove 1211 to the rotating guide groove 1212, and the rotating shaft 231 can be switched from the first position to the second position. In this embodiment, as shown in Figure 4 As shown, along the extending direction from the first end of the first link 23 to the second end, the sliding groove 122 extends downwardly, and the limiting groove 1211 also extends downwardly.
[0055] In this embodiment, in the unfolded state, along the length extending direction of the first link 23, the sliding groove 122 is located on the side close to the vertical support frame 1 compared to the rotating connection position of the first shaft 221 and the seat body 120. Preferably, along the direction approaching the connecting seat 21, the end of the limiting groove 1211 away from the vertical support frame 1 is also not more than the rotating connection position of the first shaft 221 and the seat body 120. In this way, in the process of deflection of the vertical support frame 1, the rotating shaft 231 is facilitated to switch to the second position, and the limiting member 232 is facilitated to move from the limiting groove 1211 to the rotating guide groove 1212.
[0056] In this embodiment, the folding bed further comprises a connecting mechanism 3 arranged between the lower portions of the plurality of vertical support frames 1, which can drive the lower portions of the plurality of vertical support frames 1 to move closer to or away from each other. As shown in Figure 1 、 Figure 2 As shown, the connecting mechanism 3 comprises a plurality of support rods 31 and a fixed seat 32. One end of the support rod 31 is rotatably connected to the lower portion of the vertical support frame 1 around a third shaft, and the other end of the support rod 31 is rotatably connected to the fixed seat 32 around a fourth shaft. The axis of the third shaft and the fourth shaft are parallel to each other, and the extending direction of the axis of the third shaft and the fourth shaft is perpendicular to the length extending direction of the vertical support frame 11. In this embodiment, four support rods 31 are provided, and each of the four support rods 31 is rotatably connected to the lower portion of the four vertical support frames 11. In the unfolded state, all the support rods 31 are relatively unfolded, and the support rods 31 can drive the lower portions of the plurality of vertical support frames 1 to be relatively unfolded, and maintain the stability of the vertical support frames 1, so as to maintain the folding bed in the unfolded state.
[0057] When folding the folding bed, the fixed seat 32 is lifted upward, and the fixed seat 32 drives the plurality of supporting rods 31 to move upward, and the supporting rods 31 drive the lower parts of the plurality of vertical support frames 1 to relatively close, so that the vertical support frames 1 are deflected. In this process, the rotating shaft 231 is switched to the second position, and the connecting rod assembly can be folded by rotating relative to the vertical support frame 1. When the folding bed is in the folded state, the connecting mechanism 3 is folded between the plurality of vertical support frames 1, and the connecting mechanism 3 is folded between the side walls 2.
[0058] In some preferred embodiments, the fixed seat 32 is provided with a pull ring, which facilitates the user to lift the fixed seat 32 upward.
[0059] In some embodiments, the second connecting rod 22 and the first connecting rod 23 are arranged in parallel and one above the other, which not only makes the folding bed more beautiful and tidy, but also facilitates the folding of the side walls 2. In this embodiment, the connecting line of the first shaft 221, the second shaft 222, the rotating shaft 231, and the rotating shaft 233 projected in the vertical plane forms a parallelogram, so that the folding of the connecting rod assembly is more smooth, and after folding, the connecting rod assembly and the vertical support frame 1 can be more compactly folded together, so that the volume of the folding bed is smaller.
[0060] In some preferred embodiments, along the length extension direction of the first connecting rod 23, the first shaft 221 and the rotating shaft 231 are arranged on different sides of the seat body 120, and along the up-down direction, the first shaft 221 and the rotating shaft 231 are also arranged on different sides of the seat body 120. In this way, the first shaft 221 and the rotating shaft 231 are staggered as far as possible along the length extension direction of the first connecting rod 23, and at the same time, the first connecting rod 23 and the second connecting rod 22 are spaced apart by a large distance along the up-down direction in the unfolded state, so as to improve the stability of the side walls 2.
[0061] When the folding bed is in the unfolded state, the four groups of side walls 2 are relatively unfolded, and the four supporting rods 31 are also relatively unfolded, the bottom of the vertical rod 11 is supported on the ground, the rotating shaft 231 is located at the first position, and the limiting piece 232 is also located in the limiting groove 1211. A lateral fence can be arranged between the side walls 2 and the vertical support frames 1, and a bottom plate can be arranged above the connecting mechanism 3, so as to form a lying space between the lateral fence and the bottom plate, and the user can rest in the lying space or play in the lying space.
[0062] In this embodiment, when the folding bed is in the unfolded state, the second connecting rod 22 of the two groups of connecting rod assemblies on the same side wall 2 extends along the same length direction, and the first connecting rod 23 of the two groups of connecting rod assemblies on the same side wall 2 extends along the same length direction. In this way, the appearance of the folding chair is more neat and beautiful, and it is also convenient to fix the components such as the lateral fence on the side wall 2, and the components fixed on the side wall 2 are more flat and beautiful.
[0063] When it is needed to fold the folding bed, the fixed seat 32 is lifted up by the pull ring, as shown in Figure 6 , Figure 7 During the lifting, the lower parts of the plurality of vertical supports 11 are relatively close to each other under the driving of the supporting rod 31, the vertical support frames 1 are deflected relative to the side frames 2, the seat body 120 is relatively close to the first connecting rod 23, the rotating shaft 231 is switched to the second position, and the limiting piece 232 moves into the rotating guide groove 1212. When the rotating shaft 231 is switched to the second position, the limiting piece 232 also enters the rotating guide groove 1212, the locking between the first connecting rod 23 and the seat body 120 is released, the connecting rod assembly can rotate relative to the vertical support frame 1, and the upper parts of the plurality of vertical support frames 1 can also be close to each other. At this time, the plurality of vertical support frames 1 are close to each other as a whole under the driving of the supporting rod 31, and the side frame 2 starts to be folded under the force of the vertical support frames 1 being close to each other and the gravity of the side frame 2 itself. Specifically, as shown in Figures 8 to 10 under the guidance of the rotating guide groove 1212 and the guide groove 211, the connecting seat 21 moves downward, and the two connecting rod assemblies of each group of side frames 2 are relatively close to the vertical support frame 1 on the same side and are also close to each other.
[0064] In the folded state, as shown in Figure 11 , Figure 12 two vertical support frames 1 are folded together, the side frame 2 is folded between the two adjacent vertical support frames 1, and the two connecting rod assemblies of each group of side frames 2 are also folded together. The frame space surrounded by the side frame 2 and the vertical support frame 1 is greatly reduced, and the connecting mechanism 3 is closely accommodated in the frame space, wherein the fixed seat 32 is accommodated between the upper parts of the plurality of vertical support frames 1. The folding bed in the folded state is greatly reduced in size, and the folding bed in this state has a regular cuboid shape, which is convenient for packaging and storage. By adopting the opposite operation, the side frame 2 and the vertical support frame 1 are relatively unfolded, and the fixed seat 32 is driven to move downward, so that the folding bed can be switched to the unfolded state. The operation is simple, and the limiting structure can automatically fix the first connecting rod 23 and the seat body 120, so that the folding bed can be maintained stably.
[0065] Example 2
[0066] Referring to Figure 13 , Figure 14As shown, the specific difference between the embodiment and embodiment 1 is that in the embodiment, the limiting groove 1211 is located at the side of the sliding groove 122 close to the vertical support frame 1, and the end of the limiting groove 1211 close to the vertical support frame 1 is in communication with the rotating guide groove 1212. In the process of driving the lower parts of the plurality of vertical support frames 1 to approach each other, the seat body 120 approaches the first connecting rod 23, and the limiting member 232 can move from the limiting groove 1211 into the rotating guide groove 1212.
[0067] In the embodiment, the rotating guide groove 1212 extends upward from the end of the limiting groove 1211 close to the vertical support frame 1, so as to guide the rotation of the first connecting rod 23 in the folding process, so that the first connecting rod 23 is flipped downward and is folded relative to the vertical support frame 1.
[0068] Embodiment 3
[0069] Without drawings, the specific difference between the embodiment and embodiments 1 and 2 is that in the embodiment, the second connecting rod 22 is located below the first connecting rod 23, and in the process of converting the folding bed to the folded state, the lower parts of the plurality of vertical support frames 1 approach each other, according to the principle of lever, the seat body 120 rotates around the first shaft 221 and moves away from the first connecting rod 23 located above the second connecting rod 22. Compared with embodiments 1 and 2, in the embodiment, the first position and the second position in the sliding groove 122 are reversed, and the end of the limiting groove 1211 in communication with the rotating guide groove 1212 is also reversed, so that in the process of rotating the seat body 120 around the first shaft 221 and moving away from the first connecting rod 23, the rotating shaft 231 can be converted to the second position, and the limiting member 232 can also move into the rotating guide groove 1212. Specifically, the first position is located at the side of the sliding groove 122 close to the vertical support frame 1, the second position is located at the side of the sliding groove 122 away from the vertical support frame 1, when the limiting groove 1211 is located at the side of the sliding groove 122 close to the vertical support frame 1, the end of the limiting groove 1211 away from the vertical support frame 1 is in communication with the rotating guide groove 1212; when the limiting groove 1211 is located at the side of the sliding groove 122 close to the connecting seat 21, the end of the limiting groove 1211 close to the connecting seat 21 is in communication with the rotating guide groove 1212.
[0070] Embodiment 4
[0071] Without drawings, the specific difference between the embodiment and embodiments 1 to 3 is that in the embodiment, the side wall frame 2 is arranged between the lower parts of the plurality of vertical support frames 1, and in the process of converting the folding bed to the folded state, the connecting rod assembly is flipped upward and is folded relative to the vertical support frame 1. In order to ensure that the connecting rod assembly flips in the correct direction and the folding operation is correctly performed, compared with embodiments 1 to 3, the rotating guide groove 1212 and the guide groove 211 are arranged upside down.
[0072] In summary, the folding bed structure of all the above embodiments is simple, in the unfolded state, through the limiting structure, the folding bed can be maintained stable, when folding the folding bed, only need to lift up the fixed seat 32, in the process of lifting up, the fixing between the first connecting rod 23 and the seat body 120 is automatically released, and the side wall frame 2 and the vertical support frame 1 can be folded together, the operation is simple, and the folded folding bed occupies small space, the shape is regular, and is convenient to store and arrange.
[0073] The above embodiments are only for illustrating the technical concept and characteristics of the present application, the purpose is to enable the person skilled in the art to understand the content of the present application and to implement it, and cannot limit the protection scope of the present application. Any equivalent changes or modifications made according to the spirit and essence of the present application shall be covered within the protection scope of the present application.
Claims
1. A folding bed, having an unfolded state and a folded state, characterized in that: The folding bed includes multiple vertical support frames and side frames arranged between two adjacent vertical support frames; The side frame includes a connecting seat and two sets of connecting rod assemblies. Each of the connecting seats and the two vertical support frames is provided with a set of connecting rod assemblies. The connecting rod assembly includes a first connecting rod, which has a first end and a second end located at opposite ends along its length. The first end is rotatably connected to the connecting seat, and the second end is rotatably and slidably connected to the vertical support frame. When the folding bed is in the unfolded state, the two sets of linkage assemblies are unfolded relative to each other between the two vertical support frames; when the folding bed is in the folded state, the two vertical support frames are retracted to each other, and the first linkage rotates and retracts relative to the vertical support frames, so that the two sets of linkage assemblies are retracted between the two vertical support frames.
2. The folding bed according to claim 1, characterized in that: The vertical support frame is provided with a limiting structure; the second end is provided with a rotating shaft, which moves between a first position and a second position relative to the vertical support frame; When the rotating shaft is in the first position, the first connecting rod engages with the limiting structure to restrict the relative rotation of the first connecting rod and the vertical support frame, and the first connecting rod is supported between the vertical support frame and the connecting seat; When the pivot is in the second position, the first link disengages from the limiting structure, causing the first link to rotate relative to the vertical support frame.
3. The folding bed according to claim 2, characterized in that: The vertical support frame is provided with a sliding groove adapted to the rotating shaft. In the unfolded state, the sliding groove extends parallel or collinearly to the extension direction of the first connecting rod. The limiting structure includes a limiting groove provided on the vertical support frame. In the unfolded state, the limiting groove is opened along the extension direction of the first connecting rod, which is parallel or collinear. The first connecting rod is provided with a limiting member that cooperates with the limiting structure. The limiting member is spaced apart from the rotating shaft in the extension direction of the first connecting rod. When the rotating shaft is in the first position, the limiting member is inserted and positioned into the limiting groove; under the joint operation of the rotating shaft and the limiting member, the first connecting rod is supported on the vertical support frame; When the rotating shaft is in the second position, the limiting member moves to disengage from the limiting groove, and the first connecting rod can rotate relative to the vertical support frame.
4. The folding bed according to claim 3, characterized in that: The limiting groove is recessed on the side wall of the vertical support frame, and the side wall of the vertical support frame also has a rotation guide groove communicating with the limiting groove. When the first connecting rod rotates relative to the vertical support frame, the limiting member slides along the rotation guide groove. The rotating guide groove is arc-shaped in shape. The length extension direction of the slide groove extends collinearly with the extension direction of the limiting groove, and the first connecting rod switches between the first position and the second position when it translates relative to the vertical support frame along its own length direction.
5. The folding bed according to claim 2, characterized in that: Along the length extension direction of the first link, the first position is closer to the first end than the second position, or the first position is farther away from the first end than the second position.
6. The folding bed according to claim 2, characterized in that: The first end is rotatably connected to the connecting seat about the rotating axis. The connecting seat is provided with a guide groove with the axis of rotation of the rotating shaft as the rotation center line. The first connecting rod is also provided with a guide member that is slidably inserted into the guide groove. And / or, when the folding bed is in the unfolded state, the first link in one of the two sets of link assemblies on the same side frame extends along the same length direction.
7. The folding bed according to claim 2, characterized in that: The side frame is disposed between the upper parts of the multiple vertical support frames. During the transition between the unfolded state and the folded state of the folding bed, the spacing between the lower parts of the multiple vertical support frames changes, and the vertical support frames deflect relative to the side frame, causing the pivot to switch from the first position to the second position. The folding bed also includes a connecting mechanism disposed between the lower parts of the multiple vertical support frames, and the connecting mechanism is configured to allow the lower parts of the multiple vertical support frames to move closer to or further away from each other.
8. The folding bed according to claim 1, characterized in that: The linkage assembly further includes a second linkage, one end of which is rotatably connected to the vertical support frame and the other end of which is rotatably connected to the connecting seat, wherein the first linkage and the second linkage are parallel to each other and arranged one above the other.
9. The folding bed according to any one of claims 1 to 8, characterized in that: All the vertical support frames are distributed sequentially and at intervals along the circumference. A side frame is provided between any two adjacent vertical support frames. When the folding bed is in the unfolded state, all the side frames and the vertical support frames form a frame-shaped space along the circumference. When the folding bed is in the folded state, all the vertical support frames are close to each other, and any side frame is folded up between two adjacent vertical support frames along the length direction.
10. The folding bed according to claim 9, characterized in that: The vertical support frame includes a vertical pole extending in the vertical direction and a mounting base fixed on the vertical pole, and the first connecting rod is connected to the mounting base; The vertical support frame has four members, the side frame has four sets, and the mounting base has two seats that are perpendicular to each other. The two adjacent sets of side frames are connected to the two seats respectively.