Supporting structure of folding bed and folding bed

Abstract

The utility model provides a supporting structure of a folding bed and the folding bed, the supporting structure has a folding state and an unfolding state which are opposite, the supporting structure comprises a supporting frame and supporting legs connected to the supporting frame, the supporting frame comprises two sets of deformation rod assemblies, and each deformation rod assembly is provided with at least one folding joint; each side rod is a straight rod and is connected between the two deformation rod assemblies, and a supporting frame is defined by the side rods and the two deformation rod assemblies; in the folded state, the two straight rods get close to each other, all the deformation rod assemblies deform around the folding joints, the folding joints in the two sets of deformation rod assemblies are stacked in a staggered mode in the height direction, and the occupied space after folding is further reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to a children's product, in particular to a support structure of a folding bed and a folding bed. BACKGROUND

[0002] The folding bed comprises a support structure and a fence connected to the support structure, and can be used as a household children's appliance to provide protection.

[0003] The support structure can generally be folded, and has a relative folded state and an unfolded state. At least a part of the support structure is deformed by a joint thereof when folded, so as to facilitate storage. In addition, in order to maintain the unfolded state, a locking structure and an associated unlocking member can be arranged at the deformed part.

[0004] However, the existing support structure is difficult to further reduce the storage volume due to the interference between the deformed parts after folding, and further improvement is still needed. CONTENT OF THE UTILITY MODEL

[0005] The present application provides a support structure of a folding bed, which solves the problem that the existing folding bed has a limited contracted space after folding and is still inconvenient to store.

[0006] The present application provides a support structure of a folding bed, which has a relative folded state and an unfolded state, and comprises a support frame and a support leg connected to the support frame. The support frame comprises:

[0007] Two sets of deformation rod assemblies, each set of deformation rod assemblies comprising at least one folding joint;

[0008] Two side rods, each side rod being a straight rod and being connected between the two sets of deformation rod assemblies and surrounding the two sets of deformation rod assemblies to form the support frame;

[0009] In the folded state, the two straight rods are close to each other, each set of deformation rod assemblies is deformed around the folding joint, and the folding joints in the two sets of deformation rod assemblies are stacked in height.

[0010] The present application also provides another support structure of a folding bed, which has a relative folded state and an unfolded state, and comprises a support frame and a support leg connected to the support frame. The support frame is a coplanar structure in the unfolded state.

[0011] In the folded state, the two opposite sides of the support frame are deformed and close to each other, and then pass each other and are stacked in height.

[0012] Optionally, in the folded state, the other two opposite sides of the support frame remain unchanged and close to each other.

[0013] The application further provides another support structure of a folding bed, having opposite folded and unfolded states, comprising a support frame and support legs connected to the support frame, the support frame comprising:

[0014] corner members, the top end of the support leg being connected to a corresponding corner member, the top surface of the corner member defining a second reference surface;

[0015] deformation rod assemblies, wherein two corner members are connected by the deformation rod assemblies, the deformation rod assemblies being rotationally fitted relative to the connected corner members about end axes, at least one of the end axes having an angle with the second reference surface greater than 0° and less than 90°.

[0016] Optionally, the corner members are four, and are located at the four vertexes of a rectangular region, the deformation rod assemblies are two sets of opposite arrangements and are located at the long side of the rectangular region, and the short side of the rectangular region is connected between the corresponding two corner members by a straight rod.

[0017] The application further provides a folding bed, comprising the support structure and a surrounding member connected to the support structure.

[0018] The following further provides several optional modes, but not as additional limitations to the above general scheme, merely as further supplements or preferences, and under the premise of no technical or logical contradiction, each optional mode can be combined with the above general scheme alone, and can also be combined between multiple optional modes.

[0019] Optionally, the support frame continuously extends along the circumference, and has a polygonal or smooth curved contour.

[0020] Optionally, the support frame is a circular frame, an oblong frame or a rectangular frame with rounded corners.

[0021] Optionally, the support frame has opposite long sides and short sides, and the folding joint is located at the long side.

[0022] Optionally, each set of deformation rod assemblies has one or more foldable units, and the foldable unit comprises a folding joint and a pair of connecting rods movably connected by the folding joint.

[0023] Optionally, an auxiliary joint is arranged between adjacent foldable units, and in the folded state, the auxiliary joint and the folding joint are reversely moved.

[0024] Optionally, the two connecting rods in the pair are equal in length.

[0025] Optionally, the connecting rod is a straight rod or an arc-shaped rod.

[0026] Optionally, the support frame determines a first reference plane in the unfolded state, the arc-shaped rods are located in the first reference plane, and the corresponding centers are directed to the inner side of the support frame; or the plane in which the arc-shaped rods are located is perpendicular to the first reference plane.

[0027] Optionally, in the folded state, the projections of each set of shape-changing rod assemblies in the vertical direction have an overlapping area.

[0028] Optionally, the two sets of shape-changing rod assemblies move towards each other when the support frame is switched from the unfolded state to the folded state, and the folding joints on each shape-changing rod assembly that are close to each other approach in the horizontal direction and are staggered in the direction of their own movement.

[0029] Optionally, the folding joint comprises a first part and a second part that are hingedly connected to each other; one of the two connecting rods is connected to the first part, and the other is connected to the second part, and the connection is in the form of an integral structure or a separate fixed structure.

[0030] Optionally, the included angle between the first part and the second part directed to the outer side of the support frame is at most 180°.

[0031] Optionally, the folding joint further comprises a locking structure that cooperates with both the first part and the second part to maintain two pairs of angles of the two parts.

[0032] Optionally, the locking structure cooperates with the first part and the second part in the form of movable insertion or releasable engagement, and the locking structure can be switched between an unlocked position and a locked position, wherein:

[0033] In the unlocked position, the first part and the second part are allowed to rotate freely;

[0034] In the locked position, the relative rotation of the first part and the second part is interfered.

[0035] Optionally, the locking structure locks the first part and the second part at least when the folding joint is opened to the maximum angle.

[0036] Optionally, the locking structure can also have multiple locking positions to maintain the first part and the second part at corresponding angles.

[0037] Optionally, the shape-changing rod assembly has two opposite ends that are rotatably connected to the rest of the support frame through end shafts; the first part and the second part in the shape-changing rod assembly rotate around a third shaft, and the third shaft is parallel to the end shafts.

[0038] Optionally, the corner part comprises:

[0039] L-shaped member, which determines a second reference plane;

[0040] connecting seat, which extends downward from the corner of the L-shaped member and is connected with the corresponding supporting leg.

[0041] Optionally, the top end of the supporting leg is hinged with the corresponding corner component, and in the folded state, each supporting leg is attached to the lower side of the side rod.

[0042] Optionally, the supporting leg is four, and the bottom end of each supporting leg is independent of each other.

[0043] Optionally, the L-shaped member has a first connecting end and a second connecting end on both sides of the corner thereof, wherein the first connecting end is rotationally connected with the end portion between the end portion axis; and the second connecting end is fixed with the corresponding side rod.

[0044] Optionally, the corner of the L-shaped member corresponds to 60-120 degrees.

[0045] Optionally, one set of deformation rod assemblies is the first set, and the other set of deformation rod assemblies is the second set; the first set of deformation rod assemblies is surrounded by a third reference plane after deformation, and the second set of deformation rod assemblies is surrounded by a fourth reference plane after deformation; the third reference plane and the fourth reference plane are not intersected.

[0046] Optionally, the two end portion axes corresponding to the first set of deformation rod assemblies serve as the first axis group; the two end portion axes corresponding to the second set of deformation rod assemblies serve as the second axis group; the first axis group is perpendicular to the third reference plane, and the second axis group is perpendicular to the fourth reference plane.

[0047] Optionally, in the unfolded state, the supporting frame determines a first reference plane, and the second reference plane is parallel or coplanar with the first reference plane.

[0048] Optionally, one of the first axis group or the second axis group is perpendicular to the first reference plane, and the other group has an angle with the first reference plane greater than or equal to 60° and less than 90°.

[0049] Optionally, the first axis group and the second axis group are inclined relative to the first reference plane, and the first axis group and the second axis group are inclined on the same side, and the angle between the first axis group and the second axis group and the first reference plane is greater than or equal to 60°.

[0050] Optionally, the first axis group and the second axis group are inclined relative to the first reference plane, and the first axis group is parallel to the second axis group.

[0051] The application changes the deformation direction of the two sides of the support frame relative to the deformation, that is, changes the deformation direction of the deformation rod assembly, so that it is out of the limitation of the plane where the support frame is located, and the deformation directions of the deformation rod assemblies arranged opposite to each other are staggered in the folding process, further reducing the occupied space after folding. BRIEF DESCRIPTION OF DRAWINGS

[0052] Figure 1 It is a structural schematic diagram of a support structure in an unfolded state according to an embodiment of the application.

[0053] Figures 2-5 It is a structural schematic diagram of a support structure in a folded state according to an embodiment of the application. Figure 1

[0054] Figure 6 It is a position schematic diagram of a first reference surface and an end surface axis according to an embodiment of the application.

[0055] Figure 7 It is a schematic diagram of a third reference surface and a fourth reference surface according to an embodiment of the application.

[0056] Figures 8-10 It is a position relationship diagram of multiple reference surfaces according to different embodiments of the application.

[0057] Figure 11 It is a structural schematic diagram of a folding bed according to another embodiment of the application.

[0058] Figure 12 It is a structural schematic diagram of a support structure in an unfolded state according to an embodiment of the application.

[0059] Figure 13 It is a structural schematic diagram of a support structure in a folding process according to an embodiment of the application. Figure 12

[0060] It is a structural schematic diagram of a support structure in a folded state according to an embodiment of the application. Figure 14 Figure 12 It is a front view of a support structure in a folding process according to an embodiment of the application.

[0061] Figure 15 Figure 13 It is a sectional view of one folding joint of a support structure according to an embodiment of the application.

[0062] Figure 16 It is a partial sectional view in the B-B direction according to an embodiment of the application.

[0063] Figure 17 It is an enlarged view of the A part according to an embodiment of the application. Figure 16

[0064] Figure 18 Figure 12

[0065] Figure 19 ​​​​​​FIG. 1 is a schematic view of the position of the first reference surface and the end surface axis in an embodiment of the present application.

[0066] Reference signs are as follows:

[0067] 100, support frame; 110, side rod; 120, deformation rod assembly; 120a, deformation rod assembly; 120b, deformation rod assembly; 121, connecting rod; 121a, first connecting rod; 121b, second connecting rod;

[0068] 130, folding joint; 130a, folding joint; 130b, folding joint; 131, first part; 1311, lock slot; 132, second part; 1321, lock pin; 133, elastic member; 140, unlocking member; 141, operation part; 142, driving part;

[0069] 150, corner part; 151, L-shaped member; 152, connecting seat; 160, transmission seat; 161, linkage member;

[0070] 200, support leg; 210, top end; 220, bottom end;

[0071] 300, cover member;

[0072] 400, enclosing member;

[0073] 501, first reference surface; 503, third reference surface; 504, fourth reference surface; 505, first axis group; 506, second axis group; 507, third axis. DETAILED DESCRIPTION

[0074] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0075] It should be noted that when a component is referred to as being “connected” with another component, it can be directly connected with the other component or there can be a middle component. When a component is referred to as being “disposed on” another component, it can be directly disposed on the other component or there can be a middle component.

[0076] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description herein is for describing particular embodiments only and is not intended to be limiting of the application. The use herein of the terms "and / or" includes a set of one or more associated listed items.

[0077] In this application, the terms "first", "second" and the like are used only for descriptive purposes and do not imply or imply relative importance or imply the number, order or sequence of the indicated technical features. Thus, features defined with "first", "second" can explicitly or implicitly include one or more features. In the description of the application, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0078] Reference Figures 1-5 , and Figures 12-15 In an embodiment of the application, a support structure of a folding bed is provided, which has opposite folding and unfolding states, comprising a support frame 100 and a support leg 200 connected to the support frame 100. In the unfolded state, the support frame 100 and the support leg 200 are unfolded and supported by each other (for example Figure 1 and Figure 12 ), and in the folded state, the support frame 100 and the support leg 200 are folded and abut each other (for example Figure 2 and Figure 14 ).

[0079] In which, the support frame 100 comprises two sets of deformation rod assemblies 120 and two side rods 110. Each deformation rod assembly 120 has at least one folding joint 130, and the deformation rod assembly 120 can make its two ends close to each other through the rotation of the folding joint 130. Each side rod 110 is a straight rod and is connected between the two sets of deformation rod assemblies 120 and encloses the two sets of deformation rod assemblies 120 to form the support frame 100, that is, the support frame 100 is composed of the side rods 110 and the deformation rod assemblies 120 connected alternately end to end, and the corner parts 150 can be provided at the connection positions and connected through the corner parts.

[0080] The support leg 200 can adopt a conventional rod, and the top end 210 is hinged to the corner part to facilitate folding and storage. When folding, the bottom end 220 is turned over, so that the support leg 200 is abutted to the lower side of the side rod 110 as a whole to avoid the folding joint 130 and the two sets of deformation rod assemblies 120. In the folded state, the two side rods 110 are close to each other, and each deformation rod assembly 120 is deformed around the folding joint 130. When the deformation rod assembly 120 is deformed, the folding joint 130 moves to the inside of the support frame 100, and the folding joints 130 in the two sets of deformation rod assemblies 120 are stacked in height. Figure 3 ,Figure 4 As shown in FIG. 1, one set of deformation rod assembly 120a is stacked on another set of deformation rod assembly 120b, and correspondingly, one folding joint 130a is on top, and another folding joint 130a is on the bottom, and both are arranged in a staggered manner in the horizontal direction of the perspective view. Figure 3 As shown in FIG. 1, one set of deformation rod assembly 120a is stacked on another set of deformation rod assembly 120b, and correspondingly, one folding joint 130a is on top, and another folding joint 130a is on the bottom, and both are arranged in a staggered manner in the horizontal direction of the perspective view.

[0081] Compared with the horizontally flat manner, the present application can make the deformation rod assembly 120 obtain a larger deformation amount, and the final distance between the two side rods 110 is greatly reduced, which is more convenient for storage.

[0082] Referring to Figures 1-5 , and Figures 12-15 , another embodiment of the present application provides a support structure of a folding bed having opposite folded and unfolded states, comprising a support frame 100 and support legs 200 connected to the support frame 100, wherein the support frame 100 is a coplanar structure in the unfolded state, and the support frame 100 as a whole is on a plane in the unfolded state.

[0083] In the folded state, the opposite sides of the support frame 100 are deformed and approach each other until they are staggered and stacked in height. The opposite sides of the support frame 100 can adopt the manner of other embodiments of the present application, for example, in combination with the use of deformation rod assembly 120, the support frame 100 determines a first reference surface in the unfolded state, and the deformation rod assembly 120 is rotationally connected between the two ends and the adjacent parts around the end axis. The end axis can be arranged in a non-perpendicular manner with the first reference surface to obtain the staggered arrangement in height after folding. In this embodiment, the flatness of the top surface in the unfolded state and the volume in the folded state can be considered.

[0084] Referring to Figures 1-5 , and Figures 12-15 , another embodiment of the present application provides a support structure of a folding bed having opposite folded and unfolded states, comprising a support frame 100 and support legs 200 connected to the support frame 100, wherein the support frame 100 comprises corner components 150, the top ends of the support legs 200 are connected to the corresponding corner components 150, and the top surfaces of the corner components 150 determine a second reference surface; wherein the two corner components 150 are connected by deformation rod assemblies 120, the deformation rod assemblies 120 are rotationally connected relative to the connected corner components 150 around end axes, and the included angle between at least one end axis and the second reference surface is greater than 0° and less than 90°. For example, the included angle is greater than 60°, and for example, the included angle is greater than 75°. Relative to the vertical direction, the offset can be greater than 3°, for example, the offset can be greater than 5°. Similar to the above embodiment, the deformation rod assembly 120 will gradually deviate from the first reference surface or the second reference surface when folded, and the two sets of deformation rod assemblies 120 deviate in different directions, and finally obtain the staggered arrangement in height, which can be slightly spaced or attached to each other.

[0085] In some embodiments of the present application, the support frame 100 extends continuously in the circumferential direction, and the outer contour can be polygonal or adopt a smooth curved contour, and can specifically be a rectangular frame or a circular frame. For example Figure 1 and Figure 12 When a rectangular frame is adopted, opposite long sides and short sides are provided, and the folding joint 130 is located at the long side, and the side rod 110 is located at the short side.

[0086] Referring to Figure 1 and Figure 12 Each set of shape-changing rod assembly 120 has one or more foldable units, and each foldable unit includes a folding joint 130 and a pair of links 121, specifically a first link 121a and a second link 121b, which are movably connected through the folding joint 130. Further, when the shape-changing rod assembly has multiple foldable units, adjacent foldable units are movably connected.

[0087] To save more space in the folded state, an auxiliary joint is provided between adjacent foldable units, and the auxiliary joint moves in the opposite direction of the folding joint 130 when folding.

[0088] The link 121 is a straight rod or an arc-shaped rod, and the arc-shaped rod can be in the first reference plane, and the corresponding center of the arc-shaped rod faces the inner side of the support frame 100, for example, the center of the arc-shaped rod faces the center of the support frame 100; or the arc-shaped rod can be out of the first reference plane, and the plane in which the arc-shaped rod is located is perpendicular to the first reference plane, for example, the center of the arc-shaped rod faces downward.

[0089] Since the two sets of shape-changing rod assemblies 120 are stacked in height, the folding space can be further compressed, and therefore, in the folded state, the projections of the two sets of shape-changing rod assemblies 120 in the vertical direction should have an overlapping area.

[0090] Further, to achieve the stacking of the two sets of shape-changing rod assemblies 120 in height, the two sets of shape-changing rod assemblies 120 move towards each other when the support frame 100 is converted from the unfolded state to the folded state, and the folding joints 130 on each shape-changing rod assembly 120 that are close to each other are staggered in the direction of their own movement, that is, the two folding joints 130 remain at the same height before the shape-changing process of the respective shape-changing rod assembly 120, and then gradually stagger in height as the shape-changing rod assembly 120 changes shape. And the two folding joints 130 gradually approach each other and then move away from each other as the shape-changing rod assembly 120 changes shape.

[0091] In combination with Figure 1 and Figure 5 , and Figure 12 and Figure 14In some embodiments of the present application, the folding joint 130 comprises a first part 131 and a second part 132 hingedly connected to each other. The two links 121 follow the relative rotation of the first part 131 and the second part 132 to approach or move away. Preferably, the included angle between the first part 131 and the second part 132 is at most 180°.

[0092] In the present embodiment, the folding joint 130 further comprises a locking structure cooperating with both the first part 131 and the second part 132 to maintain the relative angle of the two parts.

[0093] Preferably, the locking structure cooperates with the first part 131 and the second part 132 in a movable plug-in or releasable engagement manner, and the locking structure is switchable between an unlocked position and a locked position.

[0094] In the unlocked position, the first part 131 and the second part 132 are allowed to rotate freely;

[0095] In the locked position, the relative rotation of the first part 131 and the second part 132 is interfered.

[0096] Preferably, the locking structure locks the first part 131 and the second part 132 at least when the folding joint 130 is opened to the maximum angle.

[0097] In order to maintain the first part 131 and the second part 132 at different angles, the locking structure can also have multiple locking positions to maintain the first part 131 and the second part 132 at corresponding angles.

[0098] The first link 121a of the two links 121 is connected to the first part 131 (e.g., fixedly connected in a split body or integrated structure), and the second link 121b is connected to the second part 132 (e.g., fixedly connected in a split body or integrated structure).

[0099] The deformation rod assembly 120 has opposite two ends which are rotatably connected to the rest of the support frame 100 (in some embodiments, the corner part) through end shafts.

[0100] In order to make the deformation rod assembly 120 in the same plane before and after deformation, the first part 131 and the second part 132 rotate around a third axis 507 which is parallel to the end shaft of the deformation rod assembly 120 where the folding joint 130 is located.

[0101] Referring to Figure 16 and Figure 17 , the locking structure comprises:

[0102] a locking slot 1311 provided on the first part 131;

[0103] The lock pin 1321 is slidingly arranged on the second component 132;

[0104] The elastic member 133 (e.g. a spring) is arranged in the second component 132 and acts on the lock pin 1321 to make it extend into the lock slot 1311 so that the locking structure is in the locked state. The shape-changing rod assembly 120 further comprises an unlocking member 140 movably arranged on the connecting rod 120 or the folding joint 130 and used to unlock the locking structure. In the illustrated example, the unlocking member 140 is rotatably arranged on the connecting rod 120 connected with the first component 131. The connecting rod 120 slidingly has a transmission seat 160 arranged therein. A linkage member 161 (e.g. a steel wire) is arranged between the transmission seat 160 and the lock pin 1321 to realize linkage. The unlocking member 140 has an operation portion 141 exposed outside the connecting rod 120 and a driving portion 142 pressed to rotate and act on the transmission seat 160. The specific unlocking operation is as follows: the unlocking member 140 is pressed, the driving portion 142 acts on the transmission seat 160 to make it slide, and the steel wire drives the lock pin 1321 to exit the lock slot 1311.

[0105] In combination with the foregoing, the folding joint 130 of one of the two sets of shape-changing rod assemblies is provided with the locking structure.

[0106] In combination with Figure 5 and Figure 18 In some embodiments of the present application, the corner component 150 comprises an L-shaped member 151 and a connecting seat 152. The L-shaped member 151 defines the second reference surface. The corner portion of the L-shaped member 151 extends downward and is connected with the corresponding support leg 200.

[0107] The L-shaped member 151 has a first connecting end and a second connecting end at both sides of the corner portion thereof,

[0108] The first connecting end is rotatably connected (e.g. through a pivot) with the end portion of the shape-changing rod assembly 120 about the end portion axis, and the second connecting end is fixed with the corresponding side rod 110.

[0109] Further, the corner portion of the L-shaped member 151 corresponds to 60-120 degrees, for example, 90 degrees.

[0110] Reference Figures 6-10 In some embodiments of the present application, one of the shape-changing rod assemblies 120 is the first set, and the other shape-changing rod assembly 120 is the second set.

[0111] In combination with Figure 6 and Figure 7 The third reference surface 503 is surrounded by the first set of shape-changing rod assemblies 120 after the shape-changing rod assemblies 120 are deformed, and the fourth reference surface 504 is surrounded by the second set of shape-changing rod assemblies 120 after the shape-changing rod assemblies 120 are deformed. The third reference surface 503 and the fourth reference surface 504 do not intersect (for example, the triangular area in the figure).

[0112] The two end axes corresponding to the first set of shape-changing rod assemblies 120 serve as a first axis group 505; the two end axes corresponding to the second set of shape-changing rod assemblies 120 serve as a second axis group 506; the first axis group 505 is perpendicular to the third reference surface 503, and the second axis group 506 is perpendicular to the fourth reference surface 504; the first reference surface 501 is determined by the surface on which the support frame 100 is located in the unfolded state, and the second reference surface is parallel to or coplanar with the first reference surface:

[0113] Figures 8-10 And Figure 19 When the support frame 100 is a rectangular plane, a simplified schematic view can be obtained by projecting the horizontal direction from the side on which the side rod 110 is located. Among them, the first reference surface 501 can be regarded as the support frame 100 (or the side rod 110), the third reference surface 503 and the fourth reference surface 504 are regarded as the two sets of shape-changing rod assemblies 120, respectively, the first axis group 505 can be regarded as the pivot axis skew direction of the first set of shape-changing rod assemblies 120 relative to the first reference surface 501, and the second axis group 506 can be regarded as the pivot axis skew direction of the second set of shape-changing rod assemblies 120 relative to the first reference surface 501.

[0114] The third reference surface 503 and the fourth reference surface 504 do not intersect, one of the first axis group 505 or the second axis group 506 is perpendicular to the first reference surface 501, and the other has an angle with the first reference surface 501 greater than or equal to 60° and less than 90°. For example Figure 8 In the fourth reference surface 504 is parallel to the first reference surface 501 (not excluding the possibility of coincidence), the angle α between the third reference surface 503 and the first reference surface 501 is less than or equal to 30°. Further, the third reference surface 503 and the fourth reference surface 504 do not intersect, the first axis group 505 and the second axis group 506 are inclined (not perpendicular) relative to the first reference surface 501, and the first axis group 505 and the second axis group 506 are inclined toward the same shape-changing side of the support frame 100, and the angle between the first axis group 505 and the second axis group 506 and the first reference surface is greater than or equal to 60°. For example Figure 9 In the first axis group 505 and the second axis group 506 are inclined toward the left side of the first reference surface 501 (which can be regarded as the side rod 110), and the inclination angles are different.

[0115] Under the premise that the first axis group 505 and the second axis group 506 are inclined toward the same shape-changing side of the support frame 100, further, the first axis group 505 and the second axis group 506 are inclined relative to the first reference surface 501, and the first axis group 505 and the second axis group 506 are parallel.

[0116] In the figure, the first axis group 505 and the second axis group 506 are two straight lines respectively arranged obliquely to the first reference surface 501, the inclination angle of the first axis group 505 to the first reference surface 501 is γ, the inclination angle of the second axis group 506 to the first reference surface 501 is β, and the range of the inclination angle γ and the inclination angle β is 75°-85°.

[0117] In combination Figure 1 With Figure 11 In an embodiment of the present application, a folding bed is also provided, which can be used as a play bed to provide protection or other application modes, and includes the support structure of the foregoing embodiments and the enclosure 400, the support structure including the support frame 100 switchable between a folded state and an unfolded state and the support leg 200 hinged to the support frame 100, and the enclosure 400 is arranged along the support frame 100, and the enclosure 400 can also adopt a bag-like structure with a bottom according to needs. In the unfolded state, the support frame 100 is a coplanar structure, and in the folded state, the opposite sides of the support frame 100 are deformed and close to each other until they are staggered and stacked in height.

[0118] Further, the enclosure 400 can adopt a fabric form, and the density can be set as needed, for example, a mesh structure, the enclosure 400 is circumferentially wrapped along the support frame 100 and extends in the height direction along the support leg 200, and the upper end of the enclosure 400 is fixed to the support frame 100, and the lower end is fixed to the lower end of the support leg 200.

[0119] In the embodiment, the folding bed further includes the cover 300, which surrounds the outside of the support frame 100 and the enclosure 400, and plays a role of pressing and covering the support frame 100 and the enclosure 400.

[0120] The technical features of the above embodiments can be combined in any manner, and to make the description concise, not all possible combinations of the technical features in the above embodiments are described, however, as long as the combinations of the technical features do not exist contradictions, they should be considered as the scope disclosed in the present application. When the technical features in different embodiments are embodied in the same figure, it can be considered that the figure also discloses the combination of the embodiments involved.

[0121] The above embodiments only express several implementation manners of the present application, the description is more specific and detailed, but it cannot be understood as a limitation on the patent application scope. It should be noted that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are within the protection scope of the present application.

Claims

1. A support structure for a foldable bed having opposite folded and unfolded states, comprising a support frame and support legs connected to the support frame, characterized in that, The support frame comprises: two sets of deformation rod assemblies, at least one folding joint in each set of deformation rod assembly; two side rods, each side rod being connected between the two sets of deformation rod assemblies and forming the support frame together with the two sets of deformation rod assemblies; in the folded state, the two side rods are close to each other, each set of deformation rod assembly is deformed around the folding joint, and the folding joints in the two sets of deformation rod assemblies are vertically overlapped.

2. The support structure of a foldable bed according to claim 1, wherein, The support frame in the unfolded state is a coplanar structure and determines a first reference plane.

3. The support structure of a foldable bed according to claim 2, wherein, Further comprising corner components, the top end of the support leg is connected to the corresponding corner component, the top surface of the corner component determines a second reference plane, wherein the two corner components are connected through the deformation rod assembly, the deformation rod assembly is rotationally fitted relative to the connected corner component around the end axis, and the included angle between at least one end axis and the second reference plane is greater than 0° and less than 90°.

4. The support structure of a foldable bed according to claim 3, wherein, One set of deformation rod assemblies is a first set, and the other set of deformation rod assemblies is a second set, the third reference plane is surrounded by the first set of deformation rod assemblies after deformation, and the fourth reference plane is surrounded by the second set of deformation rod assemblies after deformation, and the third reference plane and the fourth reference plane are not intersected.

5. The support structure of a foldable bed according to claim 4, wherein, In the unfolded state, the two end axes corresponding to the first set of deformation rod assemblies serve as a first axis group, and the two end axes corresponding to the second set of deformation rod assemblies serve as a second axis group. In the first axis group or the second axis group, one group is perpendicular to the first reference plane, and the other group has an included angle with the first reference plane greater than or equal to 60° and less than 90°.

6. The support structure of a foldable bed according to claim 3, wherein, The corner components are four, and are located at the four vertex positions of the rectangular area, the deformation rod assemblies are two sets of opposite arrangements and are located at the long side of the rectangle, the short side of the rectangle is connected between the corresponding two corner components by the side rod, and the side rod is a straight rod. The top end of the support leg is hinged to the corresponding corner component, and in the folded state, each support leg is attached to the lower side of the side rod.

7. The support structure of a foldable bed according to claim 1, wherein, In the folded state, the projection between each set of deformation rod assemblies in the vertical direction has an overlapping area.

8. The support structure of a foldable bed according to claim 1, wherein, Each set of deformation rod assemblies has one or more foldable units, and the foldable unit comprises a folding joint and a pair of connecting rods connected by the folding joint.

9. The support structure of a foldable bed according to claim 8, wherein, The folding joint comprises a first part and a second part hinged to each other, one of the two connecting rods is connected to the first part, the other is connected to the second part, and the connection is in the form of an integral structure or a separate fixed structure, and the folding joint further comprises a locking structure cooperating with the first part and the second part to maintain the two pairs of angles.

10. A foldable bed, characterized by The support structure comprises a support structure according to any one of claims 1-9 and a fence connected to the support structure.

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