CN118252330A - Storage system - Google Patents

Abstract

The invention relates to a storage system, which comprises a bottom frame, a supporting frame and at least one middle layer plate movably connected with the supporting frame, wherein the supporting frame comprises a first folding part and a second folding part which are connected with the bottom frame; the middle layer plate can rotate to be close to the first folding part and/or the second folding part, so that a yielding space is formed in the middle of the supporting frame, the middle layer plate can rotate along with the first folding part and/or the second folding part, and the first folding part and the second folding part can be close to the underframe through the yielding space, so that the storage system is switched into a storage state. The middle part of the supporting frame of the storage system can form a yielding space, so that the storage system can be conveniently switched between a first use state and a storage state, the whole volume of the storage system after storage can be effectively reduced, and meanwhile, the storage capacity of the storage system in the first use state is ensured.

Description

Storage system

Technical Field

The invention relates to the technical field of storage, in particular to a storage system.

Background

In the prior art, a folding multi-layer storage system is often provided with a cross folding supporting mechanism between two adjacent layers, and the cross folding supporting mechanism occupies a certain space between the two adjacent layers after being folded, so that the middle layer plate and the two adjacent layers cannot be completely attached, the storage system is large in size in a storage state, more space area is occupied during storage, and the storage system is inconvenient to carry and high in packaging cost.

Disclosure of Invention

In view of the foregoing, it is desirable to provide a storage system.

A storage system, comprising: a chassis; the support frame comprises a plurality of first support rods and a plurality of second support rods, wherein the first support rods and the second support rods are both rotatably connected to the underframe, the first support rods form first folding parts, and the second support rods form second folding parts; and at least one intermediate deck movably connected to the support frame; the storage system is provided with a first use state and a storage state; in the first use state, a certain inclination angle is formed between the first support rod and the second support rod and the underframe, and the middle layer plate is positioned in the middle of the support frame; the middle layer plate can rotate to be close to the first folding part and/or the second folding part so as to form a yielding space in the middle of the supporting frame, and the middle layer plate can rotate along with the first folding part and/or the second folding part; the second folding part can rotate to be close to the underframe through the yielding space, and the first folding part can rotate to be close to the second folding part through the yielding space so as to enable the storage system to be switched into the storage state.

In one embodiment, the storage system further includes a connection structure, the middle layer board is rotatably connected to the first support rod through the connection structure, the middle layer board has a first end and a second end which are relatively far away, the first end of the middle layer board can rotate to an end, close to the bottom, of the first folding portion through the connection structure, and the second end of the middle layer board can rotate to an end, close to the top, of the first folding portion.

In one embodiment, the connecting structure comprises two first sliding blocks, the two first sliding blocks are respectively arranged on two opposite side edges of the first end of the middle layer plate in a protruding mode, the number of the first supporting rods is two, a first slideway is respectively arranged on two opposite side walls of the first supporting rods, the first slideway extends longitudinally along the first supporting rods, and the two first sliding blocks respectively extend into the first slideway and can slide along the first slideway.

In one embodiment, the first slideway comprises a positioning section, a transition section and a sliding section which are connected in sequence, wherein the positioning section and the transition section are both positioned at the top of the sliding section, the sliding section is positioned at one side of the first supporting rod, which is relatively close to the bottom, and the length of the sliding section is greater than that of the positioning section; when the middle layer plate is positioned in the middle of the supporting frame, the first sliding block is positioned in the positioning section; the first slider is capable of sliding to the sliding section via the transition section and sliding the first end of the intermediate laminate to an end of the first fold near the bottom.

In one embodiment, the connecting structure comprises two hinge rods, two ends of each hinge rod are respectively hinged to the middle layer plate and the first support rod, and in the first use state, the hinge rods and the middle layer plate and the hinge rods and the first support rod are all provided with inclination angles.

In one embodiment, two opposite side edges of the first end of the middle laminate are respectively provided with a second sliding block in a protruding mode, two first supporting rods are respectively provided with a second sliding way on opposite side walls of the first supporting rods, the second sliding ways extend longitudinally along the first supporting rods, and the two second sliding blocks respectively extend into the second sliding ways and can slide along the second sliding ways.

In one embodiment, the middle layer plate is two layers, wherein one layer of the middle layer plate is rotatably connected to the first supporting rod through the connecting structure, the first end of the middle layer plate can rotate to the end, close to the bottom, of the first folding part through the connecting structure, and the second end can rotate to the end, close to the top, of the first folding part; the other layer of middle layer board is rotatably connected to the second supporting rod through the connecting structure, the second end of the middle layer board can rotate to one end, close to the bottom, of the second folded portion through the connecting structure, and the first end can rotate to one end, close to the top, of the second folded portion.

In one embodiment, the middle layer plate comprises a first plate body and a second plate body which are connected in a rotating way, wherein the first plate body is connected with the first supporting rod in a rotating way, the second plate body is connected with the first plate body in a rotating way, and the second plate body is detachably connected with the second supporting rod; in the first use state, the first plate body and the second plate body are coplanar and positioned in the middle of the supporting frame; in the storage state, the first plate body and the second plate body are stacked and rotated together to be close to the first folding portion.

In one embodiment, the middle layer plate comprises a first plate body and a second plate body which are connected in a sliding manner, the first plate body is connected with the second supporting rod in a rotating manner, and the second plate body is connected with the second supporting rod in a detachable manner; in the first use state, the second plate body slides out relative to the first plate body, and the second plate body is connected with the second support rod; in the storage state, the second plate body is separated from the second supporting rod, the second plate body slides to be stacked with the first plate body, and the second plate body rotates along with the first plate body to be close to the first folding part.

In one embodiment, the middle layer plate comprises a first plate body and a second plate body which are detachably connected, the first plate body is rotatably connected with the first supporting rod, and the second plate body is rotatably connected with the second supporting rod; in the first use state, the first plate body and the second plate body are coplanar and positioned in the middle of the supporting frame; and in the storage state, the second plate body rotates to be close to the second folding part and rotates to be close to the underframe along with the second folding part, and the first plate body rotates to be close to the first folding part and rotates to be close to the second folding part along with the first folding part.

In one embodiment, the storage system further comprises a first clamping structure and a second clamping structure, wherein the first clamping structure is matched with the second clamping structure and is detachably connected with the second clamping structure, one of the first clamping structure and the second clamping structure is arranged on the middle layer plate, and the other is arranged on the second folding part; in the first use state, the first clamping structure and the second clamping structure are mutually clamped and fixed, so that the middle layer plate is fixed in the middle of the supporting frame.

In one embodiment, a second bump is arranged on one side, facing the second folding portion, of the middle layer plate in the first use state, and the first clamping structure is formed, and a positioning hole is formed on one side, facing the middle layer plate, of the second support rod, and the second clamping structure is formed; when the storage system is switched from the first use state to the storage state, the second lug can be pulled out of the positioning hole along with the rotation of the middle layer plate; when the storage system is switched from the storage state to the first use state, the second lug can enter and be clamped and fixed in the positioning hole along with the rotation of the middle layer plate, so that the middle layer plate is kept in the middle of the supporting frame.

In one embodiment, the second folding portion includes a first connecting rod, the first connecting rod is fixedly arranged between the two second supporting rods and is located in the middle of the supporting frame, and the second clamping structure is arranged on the first connecting rod.

In one embodiment, the first clamping structure comprises a first base, a first switch piece, a first clamping piece and a first elastic piece, wherein the first base is fixedly arranged on the middle layer plate, a long-strip-shaped sliding groove is formed in the first base, the first switch piece stretches into the sliding groove and can slide in the sliding groove, the first switch piece and the first elastic piece are both accommodated in the first base, the first switch piece is fixedly connected with the first clamping piece, one end of the first elastic piece is abutted to the inner wall of the first base, and the other end of the first elastic piece elastically acts on the first clamping piece; the second clamping structure comprises a second clamping piece, and the second clamping piece is fixedly arranged on the first connecting rod; the first clamping piece can move along with the first switch piece and is far away from the second clamping piece, so that the first clamping piece and the second clamping piece are mutually separated and unlocked; the first clamping piece can return to be mutually clamped and locked with the second clamping piece under the elastic action of the first elastic piece.

In one embodiment, the storage system further comprises a first positioning structure and a second positioning structure, wherein the first positioning structure is matched with the second positioning structure and is detachably connected, one of the first positioning structure and the second positioning structure is arranged on the middle layer plate, and the other is arranged on the first folding part; the first positioning structure and the second positioning structure can be clamped and fixed with each other, so that the middle layer plate can rotate to be close to the first folding portion and then fixed on the first folding portion.

In one embodiment, the first positioning structure includes a first bump, the first bump is disposed on a side edge of the second end of the middle layer board, the second positioning structure includes a first groove, the first groove is formed in the top of the first support rod, and when the second end of the middle layer board rotates to be close to the top of the first support rod, the first bump can be clamped in the first groove.

In one embodiment, the first folding portion includes a second connecting rod, the second connecting rod is fixedly arranged between the two first supporting rods and located at the top of the supporting frame, and the second positioning structure is arranged on the second connecting rod.

In one embodiment, the first positioning structure comprises a third clamping piece, the second positioning structure comprises a second base, a second switch piece, a fourth clamping piece and a second elastic piece, and the second base is fixedly arranged on the second connecting rod and a gap is reserved between the second base and the first supporting rod; the second switch piece and the fourth clamping piece are movably arranged on the second base, and the second elastic piece can elastically act on the second switch piece or the fourth clamping piece; the fourth clamping piece can extend out of the second base and into the gap, and when the middle layer plate rotates to be close to the first folding part, the third clamping piece can enter the gap; the fourth clamping piece can move along with the second switch piece and is far away from the third clamping piece, so that the third clamping piece and the fourth clamping piece are mutually separated and unlocked; the fourth clamping piece can return to be mutually clamped and locked with the third clamping piece under the elastic action of the second elastic piece.

In one embodiment, the storage system further has a second use state, in which the middle layer plate rotates to be close to the first folding portion and is fixed on the first folding portion, and the storage system is L-shaped.

In one embodiment, the storage system further includes a bracket, the bracket is fixedly arranged on the bottom frame, the first folding portion is rotatably connected to the bracket, and the height of the bracket is matched with the thickness of the second folding portion; in the storage state, the second folding portion rotates to be parallel to and attached to the bottom frame, and the first folding portion rotates to be parallel to and attached to the second folding portion.

In one embodiment, the storage system further comprises a locking structure mounted on the bracket, the locking structure having a first locking state, a second locking state, and an unlocking state; in the first locked state, the locking structure is capable of securing the first fold to the first use state; in the second locking state, after the first folding part is folded and rotated to be close to the second folding part, the locking structure can fix the first folding part; in the unlocked state, the locking structure is capable of allowing the first fold to rotate.

In one embodiment, a first abutting block is arranged on one side, relatively close to the second folding portion, of the support, a sliding groove is formed on one side, relatively far away from the second folding portion, of the support, a second abutting block is arranged on the first support rod in a protruding mode, the locking structure comprises a pedal rod and a third elastic piece, the pedal rod can slide in the sliding groove, and the third elastic piece is connected with the pedal rod and elastically acts on the pedal rod; in the first locking state, the pedal rod is abutted against the second abutting block under the elastic action of the third elastic piece, and one side, opposite to the side, away from the second abutting block, of the first supporting rod is abutted against the first abutting block; under the second locking state, the pedal rod is abutted against one side of the first support rod, which is opposite to the second abutting block, under the elastic action of the third elastic piece.

In one embodiment, the bottom of the first supporting rod is arc-shaped; and/or the pedal rod is also provided with a stop bulge, and the joint of the third elastic piece and the pedal rod is positioned between the stop bulge and the bracket.

In one embodiment, the first support rod is rotatably connected with the bracket through a rotating shaft, the rotating shaft is convexly arranged on the bracket, one end of the third elastic piece is sleeved with the rotating shaft, and the other end of the third elastic piece is sleeved with the pedal rod.

Compared with the prior art, the middle layer plate of the storage system can rotate to be close to the first folding part and/or the second folding part, so that a yielding space is formed in the middle of the supporting frame, the first folding part, the second folding part and the middle layer plate can rotate and fold towards the bottom plate through the yielding space, the storage system can be switched from a first use state to a storage state, in the storage state, the first folding part, the middle layer plate and the second folding part can be sequentially or indirectly attached to the bottom plate, the whole volume of the storage system after storage is effectively reduced, enough storage capacity of the storage system in the first use state can be kept, and meanwhile storage and carrying can be facilitated in the storage state.

Drawings

Fig. 1 is a schematic structural diagram of a first embodiment of a storage system according to the present application in a first use state.

Fig. 2 is a schematic view of the displacement system of fig. 1 in one of its states.

Fig. 3 is a schematic view of the displacement system of fig. 1 in one of its states.

Fig. 4 is an enlarged schematic view of the structure at a in fig. 3.

Fig. 5 is an enlarged schematic view of the structure at B in fig. 3.

Fig. 6 is an enlarged schematic view of the structure at C in fig. 3.

Fig. 7 is a schematic view of the displacement system of fig. 1 in one of its states.

Fig. 8 is an enlarged schematic view of the structure at D in fig. 7.

Fig. 9 is a schematic view of the first embodiment of the displacement system of fig. 1 in a second use condition.

Fig. 10 is a schematic view of the first embodiment of the placement system of fig. 1 in a storage state.

Fig. 11 is a schematic structural view of a second embodiment of the storage system in a first use state according to the present application.

Fig. 12 is a schematic view of a portion of the displacement system of fig. 11.

Fig. 13 is an enlarged schematic view of the structure at E in fig. 12.

Fig. 14 is an enlarged schematic view of the structure at F in fig. 12.

Fig. 15 is a schematic view of the displacement system of fig. 11 from one of its viewing angles.

Fig. 16 is an enlarged schematic view of the structure at G in fig. 15.

Fig. 17 is an enlarged schematic view of the structure at H in fig. 15.

Fig. 18 is a schematic view of the displacement system of fig. 11 from one of its viewing angles.

Fig. 19 is an enlarged schematic view of the structure at I in fig. 18.

Fig. 20 is a schematic view of the displacement system of fig. 11 from one of its viewing angles.

Fig. 21 is a schematic view of the displacement system of fig. 20 taken along section A-A.

Fig. 22 is an enlarged schematic view of the structure at J in fig. 21.

Fig. 23 is a schematic view of the displacement system of fig. 11 from one of its viewing angles.

Fig. 24 is an enlarged schematic view of the structure at K in fig. 23.

Fig. 25 is an enlarged schematic view of the structure at L in fig. 23.

Fig. 26 is a schematic view of a portion of the displacement system of fig. 11.

Fig. 27 is an enlarged schematic view of the structure at M in fig. 26.

Fig. 28 is a schematic view of the center-mount system of fig. 11 in one of its folded positions.

Fig. 29 is a schematic view of the center-mount system of fig. 11 in one of its folded positions.

Fig. 30 is a schematic view of the storage system of fig. 11 in one of its folded positions.

Fig. 31 is a schematic view of the displacement system of fig. 11 in a second use condition.

Fig. 32 is a schematic view of the storage system of fig. 11 in a storage state.

Fig. 33 is a schematic view of the displacement system of fig. 32 from another perspective.

Fig. 34 is a schematic view of the structure at N in fig. 33.

Fig. 35 is a schematic view of the structure at O in fig. 33.

Fig. 36 is a schematic view of the structure at P in fig. 33.

Fig. 37 is a schematic view of the structure at Q in fig. 33.

Fig. 38 is a schematic view of a portion of the displacement system of fig. 11 in a second use condition.

Fig. 39 is a schematic diagram of the structure at R in fig. 38.

Fig. 40 is a schematic diagram of the structure at S in fig. 38.

Fig. 41 is a side elevational schematic view of the displacement system of fig. 11 in a second use condition.

FIG. 42 is a schematic view of the displacement system of FIG. 41 in section B-B.

Fig. 43 is a schematic structural view of a fifth embodiment of a storage system according to the present application in a first use state.

Fig. 44 is a schematic view of the system of fig. 43 in one of its folded positions.

Fig. 45 is a schematic structural diagram of a sixth embodiment of a storage system according to the present application.

Fig. 46 is a schematic view of the system of fig. 45 in one of its folded positions.

Fig. 47 is a schematic structural view of a seventh embodiment of a storage system according to the present application.

Reference numerals: 100. a storage system; 10. a chassis; 20. a support frame; 201. a space for giving way; 21. a first folding portion; 211. a first support bar; 2111. a first groove; 212. a first slideway; 2121. a positioning section; 2122. a transition section; 2123. a sliding section; 213. a second slideway; 214. a second connecting rod; 215. a second abutment block; 22. a second folded portion; 221. a second support bar; 2211. positioning holes; 222. a first connecting rod; 223. a second groove; 30. an intermediate laminate; 30a, a first end; 30b, a second end; 31. a first bump; 32. a second bump; 33. a first plate body; 34. a second plate body; 35. rotating the connecting piece; 40. a bottom plate; 50. a top plate; 51. a third bump; 60. a connection structure; 61. a first slider; 62. a hinge rod; 63. a second slider; 71. a first clamping structure; 711. a first base; 712. a first switch member; 713. a first clamping piece; 714. a first elastic member; 715. a chute; 72. a second clamping structure; 721. a second clamping piece; 81. a first positioning structure; 811. a third clamping piece; 82. a second positioning structure; 821. a second base; 822. a second switching member; 823. a fourth clamping piece; 824. a second elastic member; 825. a gap; 91. a bracket; 911. a first abutment block; 912. a sliding groove; 92. a locking structure; 921. a foot pedal lever; 9211. a concave section; 9212. a straight rod section; 922. a third elastic member; 923. a stop protrusion; 924. a rotating shaft; 93. a roller; 94. a push-pull assembly; 941. a connecting piece; 942. a grip.

Detailed Description

In order that the above objects, features and advantages of the invention will be readily understood, a more particular description of the invention will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the invention, whereby the invention is not limited to the specific embodiments disclosed below.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

In the prior art, a foldable multi-layer storage system is often provided with a cross type folding supporting mechanism between two adjacent layers, and the cross type folding supporting mechanism occupies a certain space between the two adjacent layers after being folded, so that the middle layer plate and the two adjacent layers cannot be completely attached, the storage system is large in size in a storage state, more space area is occupied during storage, and the storage system is inconvenient to carry and high in packaging cost.

Referring to fig. 1, fig. 1 is a schematic structural diagram of a first embodiment of a storage system 100 according to the present application in a first use state; the present application provides a storage system 100, and the common application field of the storage system 100 is the tool storage and transfer field, and can also be applied to storage and transfer of other articles, where other articles include but are not limited to express, clothing, vegetables and fruits, etc.

Referring to fig. 1 again and fig. 2 to 10 together, fig. 2 is a schematic view of the placement system 100 in one of the states in fig. 1; FIG. 3 is a schematic illustration of the displacement system 100 of FIG. 1 in one of its states; FIG. 4 is an enlarged schematic view of the structure shown at A in FIG. 3;

FIG. 5 is an enlarged schematic view of the structure shown at B in FIG. 3; FIG. 6 is an enlarged schematic view of the structure of FIG. 3C; FIG. 7 is a schematic illustration of the displacement system 100 of FIG. 1 in one of its states; FIG. 8 is an enlarged schematic view of the structure of FIG. 7 at D; FIG. 9 is a schematic view of the first embodiment of the displacement system 100 of FIG. 1 in a second use configuration; fig. 10 is a schematic view of a first embodiment of the placement system 100 of fig. 1 in a storage state.

The storage system 100 includes a chassis 10, a support frame 20, and at least one intermediate deck 30; the support frame 20 includes a plurality of first support rods 211 and a plurality of second support rods 221, the first support rods 211 and the second support rods 221 are rotatably connected to the chassis 10, the plurality of first support rods 211 form a first folding portion 21, and the plurality of second support rods 221 form a second folding portion 22; the intermediate deck 30 is movably connected to the support frame 20.

The storage system 100 has a first use state and a storage state; in the first use state, the first support bar 211 and the second support bar 221 have a certain inclination angle with the underframe 10, and the middle layer plate 30 is located in the middle of the support frame 20; the middle layer plate 30 can rotate to be close to the first folding part 21 and/or the second folding part 22, so that a yielding space 201 is formed in the middle of the supporting frame 20, and the middle layer plate 30 can rotate along with the first folding part 21 and/or the second folding part 22; the second folding portion 22 can rotate to close to the chassis 10 through the abdication space 201, and the first folding portion 21 can rotate to close to the second folding portion 22 through the abdication space 201, so that the storage system 100 is switched to the storage state.

In this way, the middle layer board 30 of the storage system 100 provided by the invention can rotate to be close to the first folding portion 21 and/or the second folding portion 22, so that a yielding space 201 is formed in the middle of the supporting frame 20, and further the first folding portion 21, the middle layer board 30 and the second folding portion 22 can be rotated and folded towards the bottom board 40 via the yielding space 201, so that the storage system 100 can be switched from a first use state to a storage state, and in the storage state, the first folding portion 21, the middle layer board 30 and the second folding portion 22 can be sequentially or indirectly attached to the underframe 10, so that the overall volume of the storage system 100 after storage is effectively reduced, the storage capacity of the storage system 100 can be kept enough in the first use state, and meanwhile, the storage and transportation can be facilitated in the storage state, and the packaging and transportation cost can be reduced.

It is understood that the first folding portion 21 and the second folding portion 22 can be interchanged relatively in the present invention, so long as the use and folding of the storage system 100 are not affected.

The intermediate layer 30 is a layer provided on a non-top layer of the support frame 20, and is not limited to a layer located on the middle layer of the support frame 20. In addition, the middle of the support frame 20 refers to a position between the top and bottom of the support frame 20, and is not present just in the middle of the support frame 20.

Referring again to fig. 1-10, in a first embodiment of the invention, the storage system 100 includes an intermediate deck 30, a bottom deck 40 is further disposed on the bottom deck 10, and a top deck 50 is disposed on top of the support frame 20; alternatively, the bottom plate 40, the intermediate deck 30 and the top plate 50 are rectangular in shape.

Wherein one end of the top plate 50 is rotatably connected to the second folder 22, and the other end is detachably connected to the top of the first folder 21.

Referring to fig. 1 and 2, in the process of switching the storage system 100 from the first use state to the storage state, the top plate 50 may optionally be turned outwards to the outer side of the second folded portion 22, where the outer side of the second folded portion 22 refers to the side of the second folded portion 22 relatively far from the first folded portion 21. In other words, the top plate 50 may be optionally turned to a side away from the first folded portion 21, and the turned top plate 50 may be folded to the second folded portion 22.

It will be appreciated that in other embodiments, the top plate 50 may also be turned inwardly to fold inwardly inside the second fold 22 when switching from the first use state to the storage state. Specifically, the top plate 50 may be lifted to a certain height, then the middle layer plate 30 is turned over and closed to the first folding portion 21 to form the space 201, and then the top plate 50 is rotated to the inner side of the second supporting rod 221.

It should be noted that, alternatively, in the present embodiment, the length, width and thickness of the first support rods 211 are the same as those of the second support rods 221, and the distance between the two first support rods 211 is equal to the distance between the two second support rods 221.

Further, referring to fig. 3 and 5, the storage system 100 further includes a connection structure 60, the middle plate 30 is rotatably connected to the first support rod 211 through the connection structure 60, the middle plate 30 has a first end 30a and a second end 30b that are relatively far away, the first end 30a of the middle plate 30 can rotate to an end of the first folding portion 21 near the bottom through the connection structure 60, and the second end 30b of the middle plate 30 can rotate to an end of the first folding portion 21 near the top.

Referring to fig. 1 to 10, in the first embodiment of the present invention, the connecting structure 60 includes two first sliding blocks 61, the two first sliding blocks 61 are respectively protruded on two opposite sides of the first end 30a of the middle layer board 30, two first supporting rods 211 are respectively provided, two first sliding ways 212 are respectively provided on opposite side walls of the two first supporting rods 211, the first sliding ways 212 extend along the longitudinal direction of the first supporting rods 211, and the two first sliding blocks 61 respectively extend into the first sliding ways 212 and can slide along the first sliding ways 212.

Further, the first slideway 212 includes a positioning section 2121, a transition section 2122 and a sliding section 2123 which are sequentially connected, wherein the positioning section 2121 and the transition section 2122 are both positioned at the top of the sliding section 2123, the sliding section 2123 is positioned at one side of the first supporting rod 211 relatively close to the bottom, and the length of the sliding section 2123 is greater than that of the positioning section 2121; when the middle layer plate 30 is positioned in the middle of the supporting frame 20, the first sliding block 61 is positioned at the positioning section 2121; the first slider 61 is capable of sliding to the sliding section 2123 via the transition section 2122 and sliding the first end 30a of the intermediate layer plate 30 to the end of the first fold 21 near the bottom. So arranged, the first end 30a of the intermediate layer 30 can be turned from the horizontal direction to the vertical direction to close and attach to the first folding portion 21 only by turning to change the position of the first slider 61 corresponding to the first slideway 212.

In this embodiment, the first slideway 212 is barb-shaped, the sliding section 2123 and the positioning section 2121 extend along the length direction of the first supporting rod 211, and the transition section 2122 extends along the width direction of the first supporting rod 211 for connecting the sliding section 2123 and the positioning section 2121.

Further optionally, in the first use state, the sliding section 2123 and the positioning section 2121 are perpendicular to the chassis 10, the transition section 2122 is parallel to the chassis 10, and a side of the transition section 2122 relatively close to the chassis 10 has an arc, so as to improve the sliding smoothness of the first slider 61 at the transition section 2122, and improve the speed of folding or unfolding the middle laminate 30.

It should be understood that in other embodiments, the number of the first sliders 61 and the first slides 212 on each side may be more than two so long as the switching of the storage system 100 in different use states and storage states is not affected, so as to enhance the connection strength between the middle laminate 30 and the first folding portion 21.

Further, referring to fig. 3, 6, 7 and 8, the storage system 100 further includes a first clamping structure 71 and a second clamping structure 72, where the first clamping structure 71 is matched with and detachably connected to the second clamping structure 72, one of the first clamping structure 71 and the second clamping structure 72 is disposed on the middle layer plate 30, and the other is disposed on the second folded portion 22;

in the first use state, the first clamping structure 71 and the second clamping structure 72 are clamped and fixed with each other, so that the middle layer plate 30 is fixed at the middle part of the support frame 20.

Further, the middle layer board 30 is provided with a second bump 32 and forms a first clamping structure 71 on a side facing the second folding portion 22 in the first use state, and the second support bar 221 is provided with a positioning hole 2211 and forms a second clamping structure 72 on a side facing the middle layer board 30; when the storage system 100 is switched from the first use state to the storage state, the second bump 32 can be pulled out of the positioning hole 2211 along with the rotation of the middle layer board 30; when the storage system 100 is switched from the storage state to the first use state, the second bump 32 can enter and be clamped in the positioning hole 2211 along with the rotation of the middle layer board 30, so that the middle layer board 30 is kept in the middle of the support frame 20.

In the present embodiment, the first engaging structure 71 is the second bump 32, and the second engaging structure 72 is the positioning hole 2211. It will be appreciated that in other embodiments, the second end 30b of the intermediate ply 30 may be secured to the second fold 22 in the first use condition by other structures, such as a locking connection by a locking member.

Referring to fig. 3, 6, 7 and 8 again, further, the positioning hole 2211 is a gourd-shaped hole, and in the first usage state, the positioning hole 2211 includes a large diameter portion and a small diameter portion that are mutually communicated, wherein the small diameter portion is relatively closer to the chassis 10. In other words, in the first use state, that is, in a fully unfolded state of the placement system 100, the two second protrusions 32 of the middle layer plate 30 are respectively clamped at the small diameter portion of the gourd hole, when the middle layer plate 30 needs to be close to the first folding portion 21, the two second protrusions 32 move from the small diameter portion to the large diameter portion, the two first sliding blocks 61 respectively move from the positioning sections 2121 of the two first sliding ways 212 to the direction of the chassis 10 along the sliding section 2123 through the transition sections 2122, so that the two second protrusions 32 are separated from the large diameter portion, and when the two first sliding blocks 61 slide to the bottommost end of the sliding section 2123, the middle layer plate 30 is close to the first folding portion 21.

It is understood that the second bump 32 and the positioning hole 2211 may be disposed at opposite positions, so long as the two are not affected to cooperatively fix the intermediate layer plate 30.

Further, referring to fig. 1 to 3 again, the storage system 100 further includes a first positioning structure 81 and a second positioning structure 82, where the first positioning structure 81 and the second positioning structure 82 are matched and detachably connected, one of the first positioning structure 81 and the second positioning structure 82 is disposed on the middle layer board 30, and the other is disposed on the first folding portion 21; the first positioning structure 81 and the second positioning structure 82 can be clamped and fixed with each other, so that the middle layer plate 30 can rotate to be close to the first folding portion 21 and then be fixed on the first folding portion 21.

Referring to fig. 3 and 6 again, in the present embodiment, optionally, the first positioning structure 81 includes a first bump 31, the first bump 31 is disposed on a side of the second end 30b of the middle layer board 30, the second positioning structure 82 includes a first groove 2111, the first groove 2111 is disposed on a top of the first support rod 211, and when the second end 30b of the middle layer board 30 rotates to be close to the top of the first support rod 211, the first bump 31 can be clamped in the first groove 2111. It can be understood that, as long as the intermediate layer 30 can be rotated to be close to the first folding portion 21 and then fixed on the first folding portion 21, the first protrusion 31 and the first groove 2111 may be respectively formed at other positions of the intermediate layer 30 and the first supporting rod 211, for example, a fixing chute 715 similar to an inverted L shape is formed at a side wall of the first supporting rod 211, and the first protrusion 31 may enter a parallel portion of the fixing chute 715 from a side and then be clamped to a vertical portion of the fixing chute 715. It will be appreciated that the number of the first protrusions 31 and the number of the first grooves 2111 may be more set according to the requirement, which is not limited herein. Further, in other embodiments, the positional relationship of the first bump 31 and the first groove 2111 may be interchanged as long as the intermediate layer 30 is not affected by the attachment to the first folded portion 21.

Optionally, in this embodiment, the length of the middle layer 30 is equal to or slightly greater than the length of the first support rod 211, so that the first bump 31 can be more conveniently clamped in the first groove 2111 while the placeable length of the middle layer 30 is ensured. It will be appreciated that in other embodiments, the length of the intermediate layer 30 may be freely set as desired. The position of the first grooves 2111 of the first protrusions 31 may be adjusted according to the length of the middle laminate 30 and the length of the first support rods 211.

Further, it will be appreciated that in other embodiments, the attachment between the intermediate ply 30 and the first fold 21 may be located by other structures, such as a locking member.

Referring to fig. 1 again, it should be noted that, in the present embodiment, two side walls of the top plate 50 opposite to the end connected to the first folding portion 21 are further provided with a third bump 51, and when the storage system 100 needs to be switched from the storage state to the first use state, the two third bumps 51 can be respectively clamped into the two first grooves 2111 on the top of the first folding portion 21, so that the top plate 50 can be stably erected on the first folding portion 21.

Referring to fig. 3 and fig. 4 again, further, the storage system 100 further includes a bracket 91, the bracket 91 is fixedly disposed on the chassis 10, the first folding portion 21 is rotatably connected to the bracket 91, and the height of the bracket 91 is matched with the thickness of the second folding portion 22; in the storage state, the second folded portion 22 is rotated to be parallel to and attached to the chassis 10, and the first folded portion 21 is rotated to be parallel to and attached to the second folded portion 22. It will be appreciated that in other embodiments, when the thickness of the intermediate layer panel 30 and/or the top panel 50 is greater than the thickness of the second fold 22, the height of the bracket 91 may be correspondingly increased. Further, it will be appreciated that when the number of intermediate layers 30 is increased, the height of the bracket 91 may also be matched to the thickness of the second fold 22, the top panel 50, and/or the intermediate layers 30.

It will be appreciated that in other embodiments, when there are two intermediate plies 30, one intermediate ply 30 may be brought closer to the first fold 21 and the other intermediate ply 30 may be brought closer to the second fold 22; specifically, the top plate 50 may be turned over outwards to attach to one side of the second folding portion 22 relatively far from the first folding portion 21, and the second ends 30b of the two middle laminates 30 are further detached from the first folding portion 21 and the second folding portion 22 respectively, and are respectively turned to attach to the first folding portion 21 and the second folding portion 22, so that the second folding portion 22 and the first folding portion 21 are turned towards the bottom plate 40 in sequence until the storage system 100 is switched from the first use state to the storage state.

It will be appreciated that in other embodiments, the added intermediate layer 30 may be located between the two second support legs after being drawn to the second fold 22, and the thickness may not protrude beyond the second fold 22, so that the height of the bracket 91 may still match the thickness of the second fold 22.

Referring to fig. 3 and 4 again, further, the storage system 100 further includes a locking structure 92, the locking structure 92 is mounted on the bracket 91, and the locking structure 92 has a first locking state, a second locking state and an unlocking state; in the first locked state, the locking structure 92 is capable of fixing the first folded portion 21 to the first use state; in the second locking state, after the first folding portion 21 is folded and rotated to be close to the second folding portion 22, the locking structure 92 can fix the first folding portion 21; in the unlocked state, the locking structure 92 can allow the first folded portion 21 to rotate.

It will be appreciated that in the first use condition, the first fold 21 is perpendicular to the chassis 10. Of course, in the first use state, other angles between the first folded portion 21 and the chassis 10 are also possible, which is not limited herein.

Optionally, a first abutment block (not numbered) is disposed on a side of the bracket 91 relatively close to the second folding portion 22, a sliding groove 912 is disposed on a side of the bracket 91 relatively far from the second folding portion 22, a second abutment block (not numbered) is disposed on the first supporting rod 211 in a protruding manner, the locking structure 92 includes a pedal lever 921 and a third elastic member 922, the pedal lever 921 can slide in the sliding groove 912, and the third elastic member 922 is connected to and elastically acts on the pedal lever 921; in the first locked state, the foot lever 921 abuts against the second abutment block under the elastic action of the third elastic member 922, and the side of the first support rod 211 facing away from the second abutment block abuts against the first abutment block; in the second locked state, the foot lever 921 abuts against a side of the first support lever 211 opposite to the second abutment block under the elastic action of the third elastic member 922. It will be appreciated that when switching from the second locking state to the first locking state, only the first folded portion 21 needs to be forced to rotate to a substantially vertical state.

Further, the first supporting rod 211 is rotatably connected to the bracket 91 through a rotation shaft 924, the rotation shaft 924 is convexly arranged on the bracket 91, one end of the third elastic member 922 is sleeved with the rotation shaft 924, and the other end is sleeved with the pedal rod 921. So set up, axis of rotation 924 can provide the rotation fulcrum for first bracing piece 211, and it is more stable when guaranteeing that first bracing piece 211 rotates, is difficult for crooked, can guarantee simultaneously that the position of rotating back first folding portion 21 can be relatively fixed, keeps corresponding with second folding portion 22.

Further, it will be appreciated that the foot rest lever 921 may be a straight lever or may have a partially bent section, so long as the effect of the foot rest locking structure 92 is not affected; optionally, in an embodiment, the foot rest lever 921 includes a concave section 9211, two ends of the concave section 9211 extend to form a part of the straight bar section 9212, the two straight bar sections 9212 can slide in the two sliding grooves 912 respectively, the third elastic member 922 is connected to the straight bar section 9212, and the concave section 9211 can be conveniently pressed by a user to control the foot rest lever 921 to slide in the sliding grooves 912.

Further, in the present embodiment, the opening direction of the sliding groove 912 and the setting direction of the concave portion 9211 have a certain inclination angle with the bottom plate 40, so that the user can apply force to the foot lever 921 more easily to form the unlocked state. It will be appreciated that in other embodiments, the direction of opening of the sliding groove 912 may be perpendicular to the bottom plate 40 or the chassis 10, and the shape of the foot rest lever 921 may be varied as desired, so long as the function of the locking structure 92 is not affected.

Referring to fig. 1 again, further, the storage system 100 further includes a plurality of rollers 93, wherein the rollers 93 are disposed at the bottom of the bottom plate 40; further, the storage system 100 further includes a push-pull assembly 94, wherein the push-pull assembly 94 includes a connecting member 941 and a holding member 942, and the holding member 942 is fixedly connected to the first folding portion 21 through the connecting member 941. It is understood that the connector 941 and the grip 942 may be integrally formed or may be separately formed.

Optionally, in the present embodiment, the connecting member 941 is integrally formed with the holding member 942, and an inclination angle is formed between the connecting member 941 and the holding member 942, so that a certain distance is formed between the holding member 942 and the first folding portion 21, so that a person can hold the holding member 942 to push or pull the storage system 100. It will be appreciated that the number of rollers 93 is not limited herein, so long as the storage system 100 can be moved conveniently.

Further, the roller 93 may be a universal wheel with a locking structure, where the universal wheel can facilitate flexible steering of the storage system 100, and the locking structure on the universal wheel can ensure that the storage system 100 is not easy to move in a desired parking position.

Referring to fig. 3 and 9, further, the storage system 100 further has a second use state, in which the middle layer board 30 rotates to be close to the first folding portion 21 and is fixed on the first folding portion 21, and the storage system 100 has an L-shape. Specifically, the first protrusions 31 at two sides of the second end 30b of the middle layer plate 30 may be respectively engaged with the first grooves 2111 at the top of the two first support rods 211, so as to fix the middle layer plate 30 close to the first folding portion 21; then, the top plate 50 is turned to the outer side of the second folding portion 22, and the top plate 50 rotates towards the chassis 10 along with the second folding portion 22, so that the storage system 100 is kept in the second use state, and an L-shaped cart structure is formed. In this use state, the user can pull out the article with a larger cargo volume or a higher cargo height.

Referring to fig. 11 to 42, the present application further provides a second embodiment, which has the same concept and part of the structure as the first embodiment, except that:

In the second embodiment, referring to fig. 11, the connecting structure 60 includes two hinge rods 62, two ends of each hinge rod 62 are respectively hinged to the middle layer board 30 and the first support rod 211, and in the first use state, an inclination angle is formed between the hinge rod 62 and the middle layer board 30 and between the hinge rod 62 and the first support rod 211.

Further, two opposite side edges of the first end 30a of the middle layer plate 30 are respectively provided with two second sliding blocks 63, two first supporting rods 211 are respectively provided with a second slideway 213 on opposite side walls of the two first supporting rods 211, the second slideway 213 extends along the longitudinal direction of the first supporting rod 211, and the two second sliding blocks 63 respectively extend into the second slideway 213 and can slide along the second slideway 213. So arranged, the second slideway 213 can cooperate with the second slider 63 to play a guiding role, so that the middle layer board 30 can rotate towards the first folding portion 21; specifically, after the second end 30b of the middle layer board 30 is detached from the second folding portion 22, the second slider 63 at the first end 30a of the middle layer board 30 may slide down along the second slideway 213, so that the middle layer board 30 may rotate towards the first folding portion 21 and descend at the same time, after the middle layer board 30 and the first folding portion 21 are close, the second end 30b of the middle layer board 30 may be maximally close to the end of the first folding portion 21, which is relatively far away from the chassis 10, so as to avoid inconvenience caused by the second end 30b protruding too much. However, when the length of the intermediate plate 30 is greater than the length of the first support bar 211, the second end 30b will be higher than the top of the first support bar 211 after the intermediate plate 30 is drawn to the first folded portion 21.

In the first use state, the two hinge rods 62 can suspend and fix the first end 30a of the middle laminate 30, so in this embodiment, the second slideway 213 only has the sliding section 2123, the second slideway 213 is opened in the same direction as the extending direction of the first support leg, and the second slideway 213 is optionally perpendicular to the chassis 10.

Referring to fig. 11 again, and referring to fig. 18 to 22 together, further, in the present embodiment, the second folding portion 22 includes a first connecting rod 222, the first connecting rod 222 is fixed between two second supporting rods 221 and is located at the middle of the supporting frame 20, and the second clamping structure 72 is disposed on the first connecting rod 222.

Alternatively, in the present embodiment, the second clamping structure 72 is in locking engagement with the first clamping structure 71.

The first clamping structure 71 includes a first base 711, a first switch member 712, a first clamping member 713 and a first elastic member 714, wherein the first base 711 is fixedly arranged on the middle layer board 30, a long-strip-shaped sliding groove 715 is formed in the first base 711, the first switch member 712 extends into the sliding groove 715 and can slide in the sliding groove 715, the first switch member 712 and the first elastic member 714 are accommodated in the first base 711, the first switch member 712 is fixedly connected to the first clamping member 713, one end of the first elastic member 714 is abutted against the inner wall of the first base 711, and the other end elastically acts on the first clamping member 713; the second clamping structure 72 includes a second clamping member 721, and the second clamping member 721 is fixedly disposed on the first connecting rod 222; the first clamping member 713 can move along with the first switch member 712 and move away from the second clamping member 721, so that the first clamping member 713 and the second clamping member 721 are separated from each other for unlocking; the first locking member 713 can return to be locked with the second locking member 721 by the elastic action of the first elastic member 714. In this way, when the first engagement piece 713 and the second engagement piece 721 are engaged with each other and locked, the intermediate laminate 30 can be horizontally fixed between the first folded portion 21 and the second folded portion 22; when the first engagement piece 713 and the second engagement piece 721 are disengaged from each other, the intermediate laminate 30 can be rotated toward the first folded portion 21 away from the second folded portion 22.

It should be understood that in other embodiments, the first elastic member 714 may be omitted, the switch gear may be changed, and the second clamping member 721 may be disposed on the second supporting rod 221, so long as the second clamping member 721 and the first clamping member 713 are not affected to cooperatively connect the intermediate layer 30 and the second folding portion 22.

Further, in the present embodiment, the first folding portion 21 includes a second connecting rod 214, the second connecting rod 214 is fixed between the two first supporting rods 211 and is located at the top of the supporting frame 20, and the second positioning structure 82 is disposed on the second connecting rod 214.

As an alternative, referring to fig. 18, 19, 33, 37, 38, 40, and 42, in this embodiment, the first positioning structure 81 includes a third clamping member 811, the second positioning structure 82 includes a second base 821, a second switch member 822, a fourth clamping member 823, and a second elastic member 824, the second base 821 is fixedly disposed on the second connecting rod 214, and a gap 825 is formed between the second base 821 and the first supporting rod 211; the second switch 822 and the fourth clamp 823 are movably mounted on the second base 821, and the second elastic member 824 can elastically act on the second switch 822 or the fourth clamp 823; the fourth clamping member 823 can extend out of the second base 821 and extend into the gap 825, and when the middle layer plate 30 rotates to be close to the first folding portion 21, the third clamping member 811 can enter the gap 825; the fourth clamping member 823 can move along with the second switch member 822 and is far away from the third clamping member 811, so that the third clamping member 811 and the fourth clamping member 823 are separated from each other for unlocking; the fourth engaging member 823 is capable of returning to the engaged locking with the third engaging member 811 by the elastic action of the second elastic member 824.

In other words, in the present embodiment, the middle layer 30 is fixed on the first folded portion 21 by locking after being close to the first folded portion 21, so that the middle layer 30 can be more firmly and safely fixed, and the length limitation of the middle layer 30 can be reduced, no matter how high the first end 30a of the middle layer 30 protrudes from the first folded portion 21, the second positioning structure 82 only needs to be disposed at the position of the middle layer 30 corresponding to the first positioning structure 81.

It will be appreciated that in other embodiments, the second resilient member may be omitted and may be changed to a switch gear. It will be appreciated that the second positioning mechanism may be provided on the first support bar 211 as long as the intermediate layer plate 30 can be fixed inside the first folded portion 21.

It is to be understood that, in other embodiments, the second base 821 and the first support rod 211 may not have a gap 825, so long as the third engaging member 811 and the fourth engaging member 823 can form a gear relationship, and may be engaged with each other.

In one embodiment, the third engaging member 811 and the fourth engaging member 823 are positioned on both sides of the middle laminate 30 in a gear relationship. In other embodiments, the shift relationship may be located on only one side of the intermediate ply 30; or a fourth clamping piece 823 is convexly arranged at the middle part of one end of the middle layer plate 30, and a third clamping piece 811 is correspondingly arranged at the middle part of the second connecting rod 214.

Referring again to fig. 38-42, in the first use state, the fourth clamping member 823 extends into the gap 825; when the first use state is switched to the second use state or the storage state, the second switch member 822 is operated to move the fourth clamping member 823 in a direction away from the gap 825, the middle layer plate 30 is rotated to be close to the first folding portion 21, the third clamping member 811 can be clamped into the gap 825, and the fourth clamping member 823 can be reset to be clamped and locked with the third clamping member 811 under the action of the elastic member.

Optionally, in this embodiment, the first positioning mechanism and the second positioning mechanism are both provided with two groups, and the two groups of second positioning mechanisms are relatively arranged, so that the two second switch pieces 822 are adjacent, the extending directions of the two fourth clamping pieces 823 are opposite, so that a user can operate the two second operation pieces simultaneously and then drive the two fourth clamping pieces 823 to move, the two groups of third clamping pieces 811 are respectively arranged on two opposite sides of the middle layer plate 30, and can be respectively clamped and fixed in the gaps 825 at the corresponding positions of the two first support rods 211, thereby fixing the middle layer plate 30 more firmly and stably.

Referring to fig. 17 again, further, in the present embodiment, a second groove 223 is further formed on a side of the second supporting portion, which is relatively close to the chassis 10, and when the top plate 50 is turned over and closed to the outside of the second supporting portion, two third protrusions 51 on the top plate 50 can be snapped into the second groove 223 to fix the top plate 50 on the outside of the second supporting portion.

Referring to fig. 23 to 42, in the present embodiment, a first abutment block 911 is disposed on a side of the bracket 91 relatively close to the second folding portion 22, a sliding groove 912 is disposed on a side of the bracket 91 relatively far from the second folding portion 22, a second abutment block 215 is disposed on the first support bar 211, the locking structure 92 includes a pedal lever 921 and a third elastic member 922, the pedal lever 921 can slide in the sliding groove 912, and the third elastic member 922 is connected to and elastically acts on the pedal lever 921; in the first locked state, the foot lever 921 abuts against the second abutment block 215 under the elastic action of the third elastic member 922, and the first support lever 211 abuts against the first abutment block 911 on the side facing away from the second abutment block 215; in the second locked state, the foot lever 921 abuts against a side of the first support lever 211 opposite to the second abutment block 215 under the elastic action of the third elastic member 922. It will be appreciated that when switching from the second locking state to the first locking state, only the first folded portion 21 needs to be forced to rotate to the vertical state.

Referring to fig. 27 again, alternatively, in this embodiment, the bottom of the first support bar 211 is in a circular arc shape. In this way, when the first folding portion 21 is rotated toward the chassis 10, the bottom of the first support bar 211 is in the arc shape, so that the first support bar 211 can be rotated more easily with respect to the foot rest bar 921, and the smoothness of the folding rotation of the first folding portion 21 can be improved.

Referring to fig. 26 again, optionally, in this embodiment, the foot rest lever 921 is a straight rod, and has no concave section, the foot rest lever 921 is further provided with a stop boss 923, and a connection portion between the third elastic member 922 and the foot rest lever 921 is located between the stop boss 923 and the bracket 91. By this arrangement, the third elastic member 922 can be prevented from slipping on the pedal lever 921, and the stability and reliability of the elastic force of the third elastic member 922 can be ensured.

Referring to fig. 30 to 32 again, in addition, optionally, in the present embodiment, the width of the middle layer plate 30 and the top plate 50 is smaller than or equal to the distance between the two first support rods 211, and the thickness of the middle layer plate 30 and the top plate 50 is smaller than or equal to the thickness of the first support rods 211 or the second support rods 221, so that the space between the two first support rods 211 can accommodate the middle layer plate 30, and the space between the two second support rods 221 can accommodate the top plate 50 and/or the middle layer plate 30. So configured, the top plate 50 is located between the two second support bars 221 after being turned over, without increasing the thickness and width of the second folder 22 folded onto the bottom chassis 10. Further, the middle layer 30 can be located between the two first support rods 211 after being turned towards the first folding portion 21, that is, the thickness and width of the first folding portion 21 after being folded towards the chassis 10 will not be increased after the middle layer 30 is folded towards the first folding portion 21.

Referring to fig. 11 again, further, in the present embodiment, the holding member 942 of the push-pull assembly 94 and the connecting member 941 are separately provided, the holding member 942 is a round bar, the connecting member 941 is a metal iron sheet with a bend, two ends of the round bar are respectively connected to the first folding portion 21 through one connecting member 941, and a certain distance is provided between the round bar and the first folding portion 21 by the connecting member 941 with a bend, so that a user can hold the round bar to push-pull the placement system 100 for moving.

The present application is also provided with a third embodiment (not shown) which is the same as the first embodiment and the second embodiment, and in which the connection structure 60 is the same as the connection structure 60 of the second embodiment, and the remaining structures are the same as those of the first embodiment.

The present application also provides a fourth embodiment (not shown) which belongs to the same inventive concept as the above embodiment, and most of which have the same structure or some of which can be replaced with other functions, and the difference is that:

The middle layer plate 30 is formed by two layers, wherein one middle layer plate 30 is rotatably connected to the first supporting rod 211 through the connecting structure 60, the first end 30a of the middle layer plate 30 can rotate to the end, close to the bottom, of the first folding part 21 through the connecting structure 60, and the second end 30b can rotate to the end, close to the top, of the first folding part 21; the other intermediate layer 30 is rotatably connected to the second support bar 221 by the connection structure 60, and the second end 30b of the intermediate layer 30 can be rotated to the end of the second folded portion 22 near the bottom by the connection structure 60, and the first end 30a can be rotated to the end of the second folded portion 22 near the top.

The present application also provides a fifth embodiment which belongs to the same inventive concept as the above embodiment, and has the same or partial structures which can be replaced with the same functions, and the difference is that:

referring to fig. 43 and 44, the middle layer plate 30 includes a first plate 33 and a second plate 34 rotatably connected, the first plate 33 is rotatably connected to the first support rod 211 through a rotation connector 35, the second plate 34 is rotatably connected to the first plate 33, and the second plate 34 is detachably connected to the second support rod 221; in the first use state, the first plate 33 is coplanar with the second plate 34 and is located in the middle of the support frame 20; in the stored state, the first plate 33 and the second plate 34 are stacked and rotated together to approach the first folded portion 21.

The present application also provides a sixth embodiment, which belongs to the same inventive concept as the above embodiment, and has the same or partially identical structure, or is functionally replaceable, except that: referring to fig. 45 and 46, the middle layer plate 30 includes a first plate 33 and a second plate 34 that are slidably connected, the first plate 33 is rotatably connected to the second support rod 221, and the second plate 34 is detachably connected to the second support rod 221; in the first use state, the second plate 34 slides out relative to the first plate 33, and the second plate 34 is connected with the second support bar 221; in the housed state, the second plate 34 and the second support bar 221 are separated from each other, the second plate 34 slides to be stacked with the first plate 33, and the second plate 34 rotates with the first plate 33 to be brought close to the first folded portion 21.

It will be appreciated that sliding the second plate 34 into lamination with the first plate 33 means that the second plate 34 can be slid over, under or into the first body to be laminated with the first plate 33.

The present application also provides a seventh embodiment, which belongs to the same inventive concept as the above embodiment, and has the same or partially equivalent structure, except that: as shown in fig. 47, the middle layer plate 30 includes a first plate 33 and a second plate 34 which are detachably connected, the first plate 33 is rotatably connected to the first support bar 211, and the second plate 34 is rotatably connected to the second support bar 221; in the first use state, the first plate 33 is coplanar with the second plate 34 and is located in the middle of the support frame 20; in the storage state, the second plate 34 rotates to be close to the second folded portion 22, and rotates with the second folded portion 22 to be close to the chassis 10, and the first plate 33 rotates to be close to the first folded portion 21, and rotates with the first folded portion 21 to be close to the second folded portion 22.

It will be appreciated that some of the features of the various embodiments described above may be rearranged or otherwise substituted as desired to provide additional embodiments of the storage system 100.

The middle layer board 30 of the storage system 100 provided by the invention can rotate to be close to the first folding part 21 and/or the second folding part 22, so that a yielding space 201 is formed in the middle of the supporting frame 20, and further the first folding part 21, the second folding part 22 and the middle layer board 30 can rotate and fold towards the bottom board 40 through the yielding space 201, so that the storage system 100 can be switched from a first use state to a storage state, and in the storage state, the first folding part 21, the middle layer board 30 and the second folding part 22 can be sequentially or indirectly attached to the bottom board 40, so that the whole volume of the storage system 100 after storage is effectively reduced, and the storage system 100 can maintain enough storage capacity in the first use state and can be conveniently stored and carried in the storage state.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.

Claims (24)

1. A storage system, comprising:

A chassis;

The support frame comprises a plurality of first support rods and a plurality of second support rods, wherein the first support rods and the second support rods are both rotatably connected to the underframe, the first support rods form first folding parts, and the second support rods form second folding parts; and

At least one intermediate deck movably connected to the support frame;

the storage system is provided with a first use state and a storage state;

In the first use state, a certain inclination angle is formed between the first support rod and the second support rod and the underframe, and the middle layer plate is positioned in the middle of the support frame;

The middle layer plate can rotate to be close to the first folding part and/or the second folding part so as to form a yielding space in the middle of the supporting frame, and the middle layer plate can rotate along with the first folding part and/or the second folding part; the second folding part can rotate to be close to the underframe through the yielding space, and the first folding part can rotate to be close to the second folding part through the yielding space so as to enable the storage system to be switched into the storage state.

2. The storage system of claim 1, further comprising a connection structure by which the intermediate deck is rotatably connected to the first support bar, the intermediate deck having first and second ends that are relatively remote, the first end of the intermediate deck being rotatable by the connection structure to an end of the first fold that is proximate to the bottom, the second end of the intermediate deck being rotatable to an end of the first fold that is proximate to the top.

3. The storage system according to claim 2, wherein the connecting structure comprises two first sliding blocks, the two first sliding blocks are respectively arranged on two opposite side edges of the first end of the middle layer plate in a protruding mode, two first supporting rods are respectively arranged on two opposite side walls of the first supporting rods, one first slideway is respectively arranged on the two opposite side walls of the first supporting rods, the first slideway extends along the longitudinal direction of the first supporting rods, and the two first sliding blocks respectively extend into the first slideway and can slide along the first slideway.

4. The storage system of claim 3, wherein the first slideway comprises a positioning section, a transition section and a sliding section which are connected in sequence, wherein the positioning section and the transition section are both positioned at the top of the sliding section, the sliding section is positioned at one side of the first supporting rod relatively close to the bottom, and the length of the sliding section is longer than that of the positioning section;

when the middle layer plate is positioned in the middle of the supporting frame, the first sliding block is positioned in the positioning section; the first slider is capable of sliding to the sliding section via the transition section and sliding the first end of the intermediate laminate to an end of the first fold near the bottom.

5. The storage system according to claim 2, wherein the connecting structure comprises two hinge rods, two ends of each hinge rod are respectively hinged to the middle layer plate and the first support rod, and in the first use state, an inclination angle is formed between each hinge rod and the middle layer plate and between each hinge rod and the first support rod.

6. The storage system of claim 5, wherein two opposite side edges of the first end of the middle layer plate, opposite to each other, are respectively provided with a second sliding block in a protruding mode, two first support rods are respectively provided with a second sliding way on opposite side walls of the two first support rods, the second sliding ways extend in the longitudinal direction of the first support rods, and the two second sliding blocks respectively extend into the second sliding ways and can slide along the second sliding ways.

7. The storage system of claim 2, wherein the middle deck is two layers, wherein one layer of the middle deck is rotatably connected to the first support bar through the connection structure, the first end of the middle deck can be rotated to an end of the first folding portion near the bottom through the connection structure, and the second end can be rotated to an end of the first folding portion near the top;

The other layer of middle layer board is rotatably connected to the second supporting rod through the connecting structure, the second end of the middle layer board can rotate to one end, close to the bottom, of the second folded portion through the connecting structure, and the first end can rotate to one end, close to the top, of the second folded portion.

8. The storage system of claim 1, wherein the intermediate deck comprises a first plate and a second plate rotatably connected, the first plate rotatably connected to the first support bar, the second plate rotatably connected to the first plate, the second plate detachably connected to the second support bar;

In the first use state, the first plate body and the second plate body are coplanar and positioned in the middle of the supporting frame; in the storage state, the first plate body and the second plate body are stacked and rotated together to be close to the first folding portion.

9. The storage system of claim 1, wherein the intermediate deck comprises a first plate and a second plate slidably coupled, the first plate rotatably coupled to the second support bar, the second plate removably coupled to the second support bar;

In the first use state, the second plate body slides out relative to the first plate body, and the second plate body is connected with the second support rod; in the storage state, the second plate body is separated from the second supporting rod, the second plate body slides to be stacked with the first plate body, and the second plate body rotates along with the first plate body to be close to the first folding part.

10. The storage system of claim 1, wherein the intermediate deck comprises a first plate and a second plate that are removably coupled, the first plate being rotatably coupled to the first support bar and the second plate being rotatably coupled to the second support bar;

In the first use state, the first plate body and the second plate body are coplanar and positioned in the middle of the supporting frame; and in the storage state, the second plate body rotates to be close to the second folding part and rotates to be close to the underframe along with the second folding part, and the first plate body rotates to be close to the first folding part and rotates to be close to the second folding part along with the first folding part.

11. The storage system of claim 2, further comprising a first clamping structure and a second clamping structure, wherein the first clamping structure is matched with and detachably connected with the second clamping structure, one of the first clamping structure and the second clamping structure is arranged on the middle layer plate, and the other is arranged on the second folding part;

In the first use state, the first clamping structure and the second clamping structure are mutually clamped and fixed, so that the middle layer plate is fixed in the middle of the supporting frame.

12. The storage system according to claim 11, wherein a second bump is arranged on a side of the middle layer plate, which faces the second folding portion, in the first use state, and forms the first clamping structure, and a positioning hole is arranged on a side of the second support rod, which faces the middle layer plate, and forms the second clamping structure;

When the storage system is switched from the first use state to the storage state, the second lug can be pulled out of the positioning hole along with the rotation of the middle layer plate;

when the storage system is switched from the storage state to the first use state, the second lug can enter and be clamped and fixed in the positioning hole along with the rotation of the middle layer plate, so that the middle layer plate is kept in the middle of the supporting frame.

13. The storage system according to claim 11, wherein the second folding portion includes a first connecting rod, the first connecting rod is fixedly disposed between the two second support rods and is located in the middle of the support frame, and the second clamping structure is disposed on the first connecting rod.

14. The storage system of claim 13, wherein the first clamping structure comprises a first base, a first switch piece, a first clamping piece and a first elastic piece, the first base is fixedly arranged on the middle layer plate, a long-strip-shaped sliding groove is formed in the first base, the first switch piece stretches into the sliding groove and can slide in the sliding groove, the first switch piece and the first elastic piece are accommodated in the first base, the first switch piece is fixedly connected with the first clamping piece, one end of the first elastic piece is abutted to the inner wall of the first base, and the other end of the first elastic piece elastically acts on the first clamping piece;

The second clamping structure comprises a second clamping piece, and the second clamping piece is fixedly arranged on the first connecting rod;

The first clamping piece can move along with the first switch piece and is far away from the second clamping piece, so that the first clamping piece and the second clamping piece are mutually separated and unlocked;

the first clamping piece can return to be mutually clamped and locked with the second clamping piece under the elastic action of the first elastic piece.

15. The storage system of claim 2, further comprising a first positioning structure and a second positioning structure, the first positioning structure being mated with and detachably connected to the second positioning structure, one of the first positioning structure and the second positioning structure being disposed on the middle ply, the other being disposed on the first fold;

The first positioning structure and the second positioning structure can be clamped and fixed with each other, so that the middle layer plate can rotate to be close to the first folding portion and then fixed on the first folding portion.

16. The storage system of claim 15, wherein the first positioning structure comprises a first protrusion disposed on a side of the second end of the middle deck, the second positioning structure comprises a first groove formed in a top portion of the first support bar, and the first protrusion is capable of being engaged in the first groove when the second end of the middle deck is rotated to be close to the top portion of the first support bar.

17. The storage system of claim 15, wherein the first folding portion comprises a second connecting rod, the second connecting rod is fixedly arranged between the two first supporting rods and positioned at the top of the supporting frame, and the second positioning structure is arranged on the second connecting rod.

18. The storage system of claim 17, wherein the first positioning structure comprises a third clamping member, the second positioning structure comprises a second base, a second switch member, a fourth clamping member and a second elastic member, the second base is fixedly arranged on the second connecting rod, and a gap is formed between the second base and the first supporting rod; the second switch piece and the fourth clamping piece are movably arranged on the second base, and the second elastic piece can elastically act on the second switch piece or the fourth clamping piece;

the fourth clamping piece can extend out of the second base and into the gap, and when the middle layer plate rotates to be close to the first folding part, the third clamping piece can enter the gap;

The fourth clamping piece can move along with the second switch piece and is far away from the third clamping piece, so that the third clamping piece and the fourth clamping piece are mutually separated and unlocked;

The fourth clamping piece can return to be mutually clamped and locked with the third clamping piece under the elastic action of the second elastic piece.

19. The storage system of any one of claims 15 to 18, further comprising a second use state in which the intermediate deck is rotated to be in close proximity to and secured to the first fold, the storage system being L-shaped.

20. The storage system of claim 1, further comprising a bracket fixedly disposed on the chassis, the first fold rotatably coupled to the bracket, the bracket having a height that matches a thickness of the second fold;

In the storage state, the second folding portion rotates to be parallel to and attached to the bottom frame, and the first folding portion rotates to be parallel to and attached to the second folding portion.

21. The storage system of claim 20, further comprising a locking structure mounted on the rack, the locking structure having a first locked state, a second locked state, and an unlocked state;

in the first locked state, the locking structure is capable of securing the first fold to the first use state;

in the second locking state, after the first folding part is folded and rotated to be close to the second folding part, the locking structure can fix the first folding part;

in the unlocked state, the locking structure is capable of allowing the first fold to rotate.

22. The storage system according to claim 21, wherein a first abutment block is arranged on a side of the bracket, which is relatively close to the second folding portion, a sliding groove is formed on a side of the bracket, which is relatively far away from the second folding portion, a second abutment block is convexly arranged on the first supporting rod, the locking structure comprises a foot rest lever and a third elastic piece, the foot rest lever can slide in the sliding groove, and the third elastic piece is connected with and elastically acts on the foot rest lever;

In the first locking state, the pedal rod is abutted against the second abutting block under the elastic action of the third elastic piece, and one side, opposite to the side, away from the second abutting block, of the first supporting rod is abutted against the first abutting block;

Under the second locking state, the pedal rod is abutted against one side of the first support rod, which is opposite to the second abutting block, under the elastic action of the third elastic piece.

23. The storage system of claim 22, wherein the bottom of the first support bar is circular arc shaped; and/or the number of the groups of groups,

The pedal rod is also provided with a stop protrusion, and the joint of the third elastic piece and the pedal rod is positioned between the stop protrusion and the bracket.

24. The storage system according to claim 22, wherein the first support rod is rotatably connected to the bracket through a rotation shaft, the rotation shaft is protruding from the bracket, one end of the third elastic member is sleeved with the rotation shaft, and the other end of the third elastic member is sleeved with the foot rest lever.