Foldable box body and cart

Abstract

The utility model discloses a foldable box body and a cart. The box body comprises a base, a front side plate, a rear side plate, a left side plate and a right side plate, the front side plate, the rear side plate, the left side plate and the right side plate are rotationally connected to the base, the left end and the right end of the front side plate are detachably connected with the front ends of the left side plate and the right side plate respectively, and the left end and the right end of the right side plate are detachably connected with the rear ends of the left side plate and the right side plate respectively. The box body has a first unfolded state and a second folded state. The box body and the vehicle body are divided into two parts which can be assembled, the box body can be folded into a thin object so as to be conveniently stored, the box body can also be unfolded into a component with a large object containing cavity, the structural strength is higher, the stability is higher in the folded and unfolded states, and the operation of connecting and separating the box body and the vehicle body is convenient and fast; the vehicle body can be folded and stored, and the stability of the vehicle body is better after the vehicle body is folded as an independent component.

Description

Technical Field

[0001] The invention relates to the technical field of outdoor products, in particular to a foldable box and a cart. Background Art

[0002] The foldable outdoor stroller is very popular among users. When folded, it takes up little space and is easy to carry. When unfolded, it has a large storage space and is very suitable for outdoor activities such as self-driving tours.

[0003] The existing common folding stroller usually consists of a frame composed of X-shaped folding components and a storage bag installed on the frame, such as the patent document CN221090839U previously applied for by the applicant, and other patent documents US9211897B2, etc.

[0004] This type of outdoor stroller utilizes the deformability of the storage bag, and the bag can be folded when the frame is folded, but it also has the following disadvantages:

[0005] First, it is easy to unfold by itself after being folded and stored, and requires additional catching and tying structure to be positioned;

[0006] Secondly, the storage cloth bag is prone to obvious creases after repeated use, and the appearance is not high when in use.

[0007] Based on this, the applicant filed this application. Summary of the invention

[0008] In view of the deficiencies in the prior art, the present invention provides a foldable box and a cart, wherein the box and the cart body are divided into two assembleable parts. The box can be folded into a thinner body for easy storage, and the box has high stability in both the folded and unfolded states. The cart body can also be folded for storage, and after the cart body is folded, there are no additional components (such as storage bags) to exert force in the unfolding direction on the cart body, and the folding effect is better.

[0009] In order to solve the above technical problems, the present invention is solved by the following technical solutions:

[0010] A foldable box, the box comprising a base and front and rear side panels and left and right side panels rotatably connected to the base, the left and right ends of the front side panel are detachably connected to the front ends of the left and right side panels, and the left and right ends of the right side panel are detachably connected to the rear ends of the left and right side panels;

[0011] The box has a first state of being unfolded and a second state of being folded;

[0012] When it is in the first state, the two ends of the front side plate are respectively connected to the front ends of the left and right side plates, and the two ends of the rear side plate are respectively connected to the rear ends of the left and right side plates, and cooperate with the base to form a storage cavity for storing items;

[0013] When it is in the second state, the front and rear side panels and the left and right side panels are folded over the bottom surface of the base respectively.

[0014] In the above solution, preferably, the front end and / or rear end of the base includes a first extension portion extending upward, and the front and rear side plates are respectively rotatably connected to the corresponding first extension portions;

[0015] When the left and right side panels are flipped and folded, at least one end thereof abuts against the first extension portion, so that a space for accommodating the front and rear side panels is formed between the left and right side panels and the inner bottom surface of the base, and the front and rear side panels are placed below the left and right side panels.

[0016] In the above solution, preferably, the left end and / or the right end of the base includes a second extension portion extending upward, and the left and right side panels are respectively rotatably connected to the corresponding second extension portion;

[0017] The height of the second extension portion is higher than the height of the first extension portion;

[0018] At least one end of the left and right side panels includes a first folded edge. When the left and right side panels are flipped and folded, the outer end of the first folded edge abuts against the upper part of the first extension portion to increase the staying height of the main body of the left and right side panels.

[0019] In the above scheme, preferably, inner cuts are respectively provided at both ends of the side parts of the left and right side panels rotatably connected to the second extension part, the end angles of the second extension part are adapted to the inner cuts, the end angles of the second extension part are connected to the corresponding first extension part through the second folded edge, and the end angles of the second extension part and the height of the second folded edge are higher than the height of the second extension part.

[0020] In the above solution, preferably, one or more first slots are formed at the outer ends of the left plate and / or the right plate, and a second slot connected to the outside is formed on the side wall of the first slot;

[0021] The device further comprises a first positioning member, wherein the first positioning member comprises a pull ring and a positioning head connected to each other, the pull ring is movably arranged at the first slot body, and the positioning head is movably arranged at the second slot body;

[0022] When the left and right side panels are flipped and folded, the outer ends of the left side panel and / or the right side panel include a groove for the positioning head to be inserted into, so as to limit the folded left and right side panels through the first positioning member.

[0023] In the above scheme, preferably, the front side plate includes a U-shaped outer frame and a main side plate rotatably connected to the outer frame, one or more third slots are formed on the main side plate, a fourth slot connected to the outside is formed on the side wall of the third slot, and a fifth slot is formed on the outer frame;

[0024] It also includes a first positioning member, the first positioning member includes a pull ring and a positioning head connected to each other, the pull ring is movably arranged at the third slot body, and the positioning head is movably arranged at the fourth slot body;

[0025] When the main side plate is unfolded to correspond to the outer frame, the fourth slot body corresponds to the fifth slot body, so that the positioning head can be pushed into the fifth slot body to position the main side plate on the outer frame.

[0026] In the above solution, preferably, a first through hole is provided on the front side plate and / or the rear side plate;

[0027] The front side plate includes a first accommodating cavity, and the first accommodating cavity includes a flippable cover plate;

[0028] The rear side plate includes an inner groove body, the upper end of the inner groove body is rotatably connected to a first bracket, the first bracket is provided with a second through hole, the lower end of the inner groove body is rotatably connected to a second bracket, the second bracket includes a boss adapted to the second through hole, and the outer diameter of the boss is smaller than the outer diameter of the main body of the second bracket;

[0029] When the first bracket and the second bracket are both flipped and folded in the inner groove body, the boss is penetrated through the second through hole, and the first bracket covers the second bracket.

[0030] In the above scheme, preferably, it further includes an upper cover plate for covering the upper opening of the accommodating cavity, and the left and right side plates include support bars for supporting the upper cover plate;

[0031] The upper cover plate includes at least two cover plate groups, each cover plate group includes at least two cover plates that can be flipped and folded;

[0032] The front end and / or rear end of the base includes a first extension portion extending upward, and at least one end of the left and right side panels includes a first folded edge. When the left and right side panels are flipped and folded, the outer end of the first folded edge abuts against the upper portion of the first extension portion to form a space for accommodating the flipped and folded cover panel group.

[0033] In the above scheme, preferably, it includes a cart body, on which the above-mentioned foldable box is installed;

[0034] The cart body comprises

[0035] At least two connecting members, wherein the upper portion of the connecting members includes a plurality of positioning grooves with openings facing upward;

[0036] A first frame, wherein two ends of the right end of the first frame are rotatably connected to the corresponding left ends of the connecting member, and a plurality of wheels are disposed on the left end of the first frame; and

[0037] A second frame, wherein two ends of the left end of the second frame are rotatably connected to the right ends of the corresponding connecting members, and a plurality of wheels are arranged at the right end of the second frame;

[0038] The right end of the first frame and the left end of the second frame are respectively provided with limiting columns adapted to the positioning grooves;

[0039] The cart body has a first folded state and a second unfolded state. When the cart body is in the first state, the limit column leaves the positioning groove; when the cart body is in the second state, the limit column is inserted into the positioning groove.

[0040] In the above solution, preferably, the first frame and / or the second frame is provided with a handle;

[0041] The cart body is provided with a plurality of second positioning members, the base is provided with a third positioning member matched with the second positioning member, and the second positioning member and the third positioning member are respectively provided with corresponding through holes so as to position the foldable box on the cart body through a pin shaft.

[0042] The beneficial effects of the present invention are:

[0043] The present invention divides the box body and the vehicle body into two parts that can be assembled. The box body can be folded into a thinner part for easy storage, and can also be unfolded into a component with a larger storage cavity. The structural strength is higher, the folded and unfolded states have higher stability, and the connection and separation operations with the vehicle body are convenient.

[0044] The vehicle body can also be folded and stored, and the vehicle body as an independent component has better stability after folding. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 It is a schematic diagram of the matching state of the box body and the cart body of the present invention.

[0046] Figure 2 This is a schematic diagram from another perspective showing the cooperation between the box body and the cart body of the present invention.

[0047] Figure 3 It is a schematic diagram of the box of the present invention.

[0048] Figure 4 It is a schematic diagram of another viewing angle of the box of the present invention.

[0049] Figure 5 It is a schematic diagram of the upper cover plate of the present invention.

[0050] Figure 6 It is a schematic diagram of the unfolded state of the box body of the present invention.

[0051] Figure 7 It is a schematic diagram of the box body of the present invention in a folded state.

[0052] Figure 8 It is a schematic diagram of the folded state of the front and rear side panels of the present invention.

[0053] Fig. 9 It is a schematic diagram of the base of the present invention.

[0054] Fig.10 It is a schematic diagram of the left side panel or the right side panel of the present invention.

[0055] Fig.11 It is a schematic diagram of the matching relationship between the left and right side panels and the front and rear side panels when the box body of the present invention is in a folded state.

[0056] Fig.12 for Fig.11 Enlarged schematic diagram of point D in the middle.

[0057] Fig.13 It is a bottom view schematic diagram of the matching relationship between the left and right side panels and the front and rear side panels when the box body of the present invention is in a folded state.

[0058] Fig.14 It is a schematic diagram of the disassembled state of the front side panel of the present invention.

[0059] Fig.15 It is a schematic diagram of the outer frame of the present invention.

[0060] Fig.16 It is a schematic diagram of the front side plate of the present invention.

[0061] Fig.17 It is a schematic diagram of the rear side plate of the present invention.

[0062] Fig.18 It is a schematic diagram of the overlapping state of the first bracket and the second bracket of the present invention.

[0063] Fig.19 It is a schematic diagram of the stroller main body of the present invention in an unfolded state.

[0064] Fig. 20 This is a schematic diagram of the stroller body of the present invention in a folded state. DETAILED DESCRIPTION

[0065] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments:

[0066] See also Figure 1-Figure 20 The foldable box includes a base 1 and front and rear side panels and left and right side panels rotatably connected to the base 1, wherein the front and rear side panels refer to the front side panel 2 and the rear side panel 3; the left and right side panels refer to the left side panel 4 and the right side panel 5, the left and right ends of the front side panel 2 are respectively detachable and connected to the front ends of the left and right side panels, and the left and right ends of the rear side panel 3 are respectively detachable and connected to the rear ends of the left and right side panels.

[0067] The bottom surface of the base 1 is relatively flat so that it can be stably placed on the cart, and the outer periphery of the bottom surface has a side strip extending upward. Specifically, the front and rear ends of the base 1 include a first extension portion 11 extending upward, and the left and right ends of the base 1 include a second extension portion 12 extending upward.

[0068] The first extension portion 11 and the second extension portion 12 may both have a certain thickness so that other components can be rotatably arranged thereon. In this embodiment, the front side plate 2 is rotatably connected to the first extension portion 11 located at the front end of the base 1; the rear side plate 3 is rotatably connected to the first extension portion 11 located at the rear end of the base 1; the left side plate 4 is rotatably connected to the second extension portion 12 located at the left end of the base 1; and the right side plate 5 is rotatably connected to the second extension portion 12 located at the right end of the base 1.

[0069] As one of the embodiments, the front and rear side panels are respectively rotatably connected to the inner position of the corresponding first extension part 11, and the left and right side panels are respectively rotatably connected to the inner position of the corresponding second extension part 12, so that the lower bottom surface of the corresponding side panel can be matched and placed on the upper surface of the corresponding extension part after being flipped and unfolded, so as to make the overall matching effect and sealing degree better.

[0070] As one embodiment, the first extension portion 11 and the second extension portion 12 are connected in sequence to surround and form an extended edge strip around the outer periphery of the base. Specifically, the first extension portion 11 located at the front end of the base 1 and the two ends of the first extension portion 11 located at the rear end of the base 1 are respectively connected to the two ends of the two second extension portions 12. Fig. 9 shown.

[0071] In this embodiment, the front and rear side panels and the left and right side panels can also be connected and assembled with each other after being turned up and unfolded. Figure 6 As shown, the two ends of the front side panel 2 are respectively connected to the front ends of the left and right side panels, and the two ends of the rear side panel 3 are respectively connected to the rear ends of the left and right side panels, so that after unfolding, they cooperate with the base 1 to form a storage cavity for storing items, and the connection method between adjacent side panels can be selected by snap fit, etc.

[0072] The flip combination of the front and rear side panels and the left and right side panels enables the box body to have a first state of unfolding and a second state of folding, such as Figure 6 The first state of the expansion is shown. Figure 7 The second folded state is shown. In the second state, the front and rear side panels and the left and right side panels are folded over the bottom surface of the base 1 respectively.

[0073] like Figure 6 As shown, after the front and rear side panels and the left and right side panels are unfolded and combined, the upper part of the box body also has an opening, and the opening can be used for storing and taking out food. In order to be able to close the opening, in this embodiment, an upper cover plate 6 is also provided for covering the opening above the accommodating cavity. The upper cover plate 6 is detachable, and when covered, it is supported by the support strips 41 arranged on the left and right side panels. Since there are no other parts to lock it, it can be directly removed when taking it out.

[0074] The support strips 41 on the left and right side panels can be specifically formed by extending the inner side walls of the left and right side panels. Figure 6 In the unfolded state shown, the support strips 41 are arranged horizontally, and their outer ends exceed the edge strips of the left and right side panels themselves, that is, the size of the opening above the accommodating cavity is limited by the edge strips of the front and rear side panels and the left and right side panels themselves. The overall size of the upper cover plate 6 can be adapted to the size of the opening, and the more protruding support strip 41 parts can play a role in supporting and positioning the upper cover plate 6.

[0075] The support bar 41 can be a whole bar or arranged in the form of multiple relatively short bars, and the specific selection can be made according to actual needs.

[0076] To facilitate the storage of the upper cover plate 6, in this embodiment, the upper cover plate 6 includes at least two groups of cover plate groups, such as Figure 3-Figure 5 As shown, the upper cover plate 6 includes two groups of cover plate groups, each group of cover plate groups includes two flip-foldable cover plates 61, and the two cover plates 61 can form an integrally flat or relatively flat plate (such as the upper surfaces of the two cover plates are flush) after unfolding; after folding, they are superimposed on each other and combined in an upper and lower distribution manner. As one implementation method, the two cover plates 61 on each group of cover plate groups are the same in shape and size, so that after folding, they only occupy the length and width of one cover plate, and only increase to a certain extent in the height direction.

[0077] The above-mentioned design of the upper cover plate 6 can cooperate with the front and rear side plates and the left and right side plates after folding, so as to make the folding structure of the box body more reasonable.

[0078] In this embodiment, after the left and right side panels are turned over and folded, the main body parts 42 thereof are relatively raised to provide a certain storage space H, which can be used for storing the folded upper cover plate 6. Fig.11 , Fig.12 shown.

[0079] Specifically, Fig. 9As shown, the height of the second extension portion 12 is higher than that of the first extension portion 11, and the ends of the left and right side panels include a first folded edge 43. When the left and right side panels are flipped and folded, the first folded edge 43 abuts against the upper part of the first extension portion 11, thereby raising the staying height of the main body portion 42 of the left and right side panels, achieving the purpose of making the main body portion 42 relatively raised, so as to increase the space under the left and right side panels in the folded state.

[0080] Furthermore, because the first extension portion 11 also has a certain height, it can be achieved that after the front and rear side panels are flipped and folded, their upper edges can be equal to or lower than the horizontal height of the upper edges of the first extension portion 11, and the first folded edges 43 of the left and right side panels are abutted against the upper portion of the first extension portion 11, so that in the folded state, the front and rear side panels are not only located below the left and right side panels, but also there is still space between the two for storing the upper cover 6.

[0081] In this embodiment, when folding is required, the front and rear side panels are first flipped and folded, and then the upper cover plate 6 is folded and placed above the front and rear side panels (when arranged, the front and rear ends of the upper cover plate 6 are respectively facing the front and rear ends of the base 1, one cover plate group is close to the left side panel, and one cover plate group is close to the right side panel), and finally the left and right side panels are flipped and folded.

[0082] For details about the storage space H for accommodating the upper cover plate 6, please refer to Figure 11-13 As shown, in order to further limit the upper cover plate 6 stored in the folded state, two limit baffles 44 can be respectively arranged on the inner walls of the left and right side plates, and the distance between the two limit baffles 44 is adapted to the length of the cover plate group after folding, as shown in FIG. Fig.11 shown.

[0083] The role of designing the first folded edge 43 on the left and right side panels has been specifically described above. After designing the first folded edge 43, it is also necessary to consider the sealing performance when it is unfolded. In this embodiment, the two ends of the side portions of the left and right side panels that are rotatably connected to the second extension portion 12 are respectively provided with inner cutouts 45, and the end angle 121 of the second extension portion 12 is adapted to the inner cutout 45. The end angle 121 of the second extension portion 12 is connected to the corresponding first extension portion 11 through the second folded edge 122, and the upper edge height of the end angle 121 and the second folded edge 122 is higher than the horizontal height of the upper edge of the second extension portion 12. Fig. 9 As shown, after the left and right side panels are unfolded, their end corners (inner cutouts) fit with the end corners 121 of the second extension portion 12, and the first folded edge 43 fits with the second folded edge 122, as shown in FIG. Figure 6 shown.

[0084] In this embodiment, when the box body is in the folded state, the left and right side panels can be locked with each other to further limit the upper cover plate 6 and the front and rear side panels thereunder.

[0085] Specifically, one or more first grooves 51 are formed at the outer end of the left side plate 4 and / or the right side plate 5, and a second groove 52 connected to the outside is formed on the side wall of the first groove 51. A first positioning member is arranged in the combined groove body composed of the first groove body 51 and the second groove body 52. ​​The first positioning member includes a pull ring 53 and a positioning head 54 that are connected to each other. The pull ring 53 is movably arranged at the first groove body 51, and the positioning head 54 is movably arranged at the second groove body 52.

[0086] The mutual locking of the left side plate 4 and the right side plate 5 has at least the following two forms:

[0087] First, a combination of a first slot 51 and a second slot 52 is opened on one of the side panels, and only a slot corresponding to the second slot 52 is opened on the other side panel, so that in the folded state, the outer end of the positioning head 54 of the first positioning member can be inserted into the slot to lock the left side panel 4 and the right side panel 5.

[0088] Secondly, a combination of a first slot 51 and a second slot 52 is provided on both the left side panel 4 and the right side panel 5. The positions of the two second slots 52 on the two side panels correspond to each other. The first positioning member is installed at one of the combined slots so that in the folded state, the outer end of the positioning head 54 of the first positioning member can be inserted into the second slot 52 of the other side panel to lock the left side panel 4 and the right side panel 5.

[0089] In this embodiment, it is further provided that the front side panels of the box body can be opened separately when the box body is in the unfolded state, so as to facilitate the storage and retrieval of articles.

[0090] Specifically, the front side panel 2 includes a U-shaped outer frame 21 and a main side panel 22 rotatably connected to the outer frame 21. The outer frame 21 is used to cooperate with the left and right side panels to position the left and right side panels so that the box body maintains a stable unfolded state.

[0091] As one implementation manner, the main side plate 22 is rotatably connected to the outer position of the lower part of the outer frame 21.

[0092] In this embodiment, a third groove body 221 is respectively provided at the left and right ends of the main side plate 22, and a fourth groove body 222 connected to the outside is provided on the side wall of the third groove body 221, and a first positioning member is installed in the combination of the third groove body 221 and the fourth groove body 222. The first positioning member includes a pull ring 53 and a positioning head 54 that are connected to each other, wherein the pull ring 53 is movably arranged at the third groove body 221, and the positioning head 54 is movably arranged at the fourth groove body 222, and the first positioning member can move laterally along the combined groove body.

[0093] The first positioning member arranged on the front side plate 2 may have the same or similar structure as the first positioning members arranged on the left and right side plates.

[0094] Furthermore, a fifth slot 211 corresponding to the fourth slot 222 is provided on the outer frame 21. When the main side panel 22 is unfolded, the outer end of the positioning head 54 of the first positioning member can be laterally inserted into the fifth slot 211 to lock the main side panel 22 and the outer frame 21 into one.

[0095] To facilitate operation of the front side plate 2 and the rear side plate 3 , in this embodiment, first through holes 23 are respectively opened on the front side plate 2 and the rear side plate 3 , and the first through holes 23 can be used for users to pass their hands through or hold for operation.

[0096] For the front side plate 2, if Figure 3 , Fig.14 , Fig.16 As shown, it also includes a first accommodating cavity 24, and the first accommodating cavity 24 includes a flip-up cover 25. The first accommodating cavity 24 can be used to store items, such as batteries and other components. The cover 25 can be snap-fitted onto the main side plate 22 of the front side plate 2 by a snap-fit ​​manner.

[0097] For the rear side panel 3, as shown in FIG. Figure 4 , 17 , Fig.18 As shown, it includes an inner groove body 31, the upper end of the inner groove body 31 is rotatably connected to a first bracket 32, a second through hole 321 is opened on the first bracket 32, and the lower end of the inner groove body 31 is rotatably connected to a second bracket 33, the second bracket 33 includes a boss 331 adapted to the second through hole 321, and the outer diameter of the boss 331 is smaller than the outer diameter of the main part of the second bracket 33.

[0098] The first bracket 32 ​​and the second bracket 33 can be unfolded and folded. Figure 4 , Fig.17 The expanded state is shown. Figure 8 , Fig.18 Shown folded.

[0099] The first bracket 32 ​​and the second bracket 33 are mainly unfolded when the rear side panel 3 is in the unfolded state, and can be used to place objects such as water cups. The first bracket 32 ​​can be maintained in the unfolded state by a damping rotation connection, or it can be maintained in the unfolded position by a snap structure or a magnetic structure when unfolded, and the second bracket 33 can rely on the inner wall of the inner groove body 31 to support it and keep it in the unfolded state.

[0100] When the first bracket 32 ​​and the second bracket 33 are folded in the inner groove body 31, the two brackets cooperate with each other and are assembled into one. Fig.18As shown, specifically, the boss 331 of the second bracket 33 is penetrated through the second through hole 321, the boss 331 is adapted to the shape and size of the second through hole 321, and the first bracket 32 ​​covers the second bracket 33. As one of the implementation methods, the thickness of the boss 331 is designed so that when the two are combined, the upper surface of the boss 331 is flush with the outer surface of the first bracket 32.

[0101] A cart comprises a cart body 7, on which the above-mentioned foldable box is installed. The foldable box can be directly placed flat on the cart body 7 or connected to the cart body 7. For example, a second positioning member 71 is provided on the cart body 7, and a third positioning member 72 matching with the second positioning member 71 is arranged on the base of the foldable box. The second positioning member 71 can be further designed as a U-shaped member, and the third positioning member 72 can be installed in the installation space of the U-shaped member. The second positioning member 71 and the third positioning member 72 are respectively provided with corresponding through holes, so that the foldable box can be positioned on the cart body through a pin shaft, such as Figure 1 shown.

[0102] Of course, the foldable box body may also be positioned on the cart body in other ways, such as by a slide groove.

[0103] In this embodiment, the cart body is foldable. Specifically, the cart body 7 includes a first frame 73 , a second frame 74 and at least two connecting members 75 .

[0104] Specifically, the upper portion of the connecting member 75 includes a plurality of positioning grooves 751 with openings facing upward, and the two ends of the right end of the first frame 73 are respectively rotatably connected to the corresponding left end of the connecting member 75, and the two ends of the left end of the second frame 74 are respectively rotatably connected to the corresponding right end of the connecting member 75, so that the first frame 73, the second frame 74 and the two connecting members 75 are assembled into one.

[0105] Furthermore, the right end of the first frame 73 and the left end of the second frame 74 are respectively provided with a limiting column 76 adapted to the positioning groove 751, and the first frame 73 and the second frame 74 can rotate along the connecting member 75. After the first frame 73 and the second frame 74 are unfolded, the limiting column 76 is inserted into the corresponding positioning groove 751 to maintain the stability of the unfolded cart. Fig.19 After the first frame 73 and the second frame 74 are folded, the limiting column 76 leaves the positioning groove 751, and the first frame 73 and the second frame 74 are in an upright state, such as Fig. 20 shown.

[0106] Similar to the prior art, a plurality of wheels may be respectively disposed on the left end of the first frame 73 and the right end of the second frame 74 , and a handle may also be disposed on the first frame 73 and / or the second frame 74 .

[0107] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. Foldable box, characterized by: The box body includes a base, and front and rear side panels and left and right side panels rotatably connected to the base, the left and right ends of the front side panel are detachably connected to the front ends of the left and right side panels, and the left and right ends of the right side panel are detachably connected to the rear ends of the left and right side panels; The box has a first state of being unfolded and a second state of being folded; When it is in the first state, the two ends of the front side plate are respectively connected to the front ends of the left and right side plates, and the two ends of the rear side plate are respectively connected to the rear ends of the left and right side plates, and cooperate with the base to form a storage cavity for storing items; When it is in the second state, the front and rear side panels and the left and right side panels are folded over the bottom surface of the base respectively.

2. The foldable box according to claim 1, characterized in that: The front end and / or rear end of the base includes a first extension portion extending upward, and the front and rear side plates are respectively rotatably connected to the corresponding first extension portions; When the left and right side panels are flipped and folded, at least one end thereof abuts against the first extension portion, so that a space for accommodating the front and rear side panels is formed between the left and right side panels and the inner bottom surface of the base, and the front and rear side panels are placed below the left and right side panels.

3. The foldable box according to claim 2, characterized in that: The left end and / or the right end of the base includes a second extension portion extending upward, and the left and right side panels are respectively rotatably connected to the corresponding second extension portion; The height of the second extension portion is higher than the height of the first extension portion; At least one end of the left and right side panels includes a first folded edge. When the left and right side panels are flipped and folded, the outer end of the first folded edge abuts against the upper part of the first extension portion to increase the staying height of the main body of the left and right side panels.

4. The foldable box according to claim 3, characterized in that: The two ends of the side parts of the left and right side panels rotatably connected to the second extension part are respectively provided with inner cuts, and the end angles of the second extension part are adapted to the inner cuts. The end angles of the second extension part are connected to the corresponding first extension part through second folded edges, and the end angles of the second extension part and the height of the second folded edge are higher than the height of the second extension part.

5. The foldable box according to any one of claims 1 to 4, characterized in that: One or more first slots are formed at the outer ends of the left plate and / or the right plate, and a second slot connected to the outside is formed on the side wall of the first slot; The device further comprises a first positioning member, wherein the first positioning member comprises a pull ring and a positioning head connected to each other, the pull ring is movably arranged at the first slot body, and the positioning head is movably arranged at the second slot body; When the left and right side panels are flipped and folded, the outer ends of the left side panel and / or the right side panel include a groove for the positioning head to be inserted into, so as to limit the folded left and right side panels through the first positioning member.

6. The foldable box according to any one of claims 1 to 4, characterized in that: The front side plate comprises a U-shaped outer frame and a main side plate rotatably connected to the outer frame, one or more third slots are formed on the main side plate, a fourth slot connected to the outside is formed on the side wall of the third slot, and a fifth slot is formed on the outer frame; It also includes a first positioning member, the first positioning member includes a pull ring and a positioning head connected to each other, the pull ring is movably arranged at the third slot body, and the positioning head is movably arranged at the fourth slot body; When the main side plate is unfolded to correspond to the outer frame, the fourth slot body corresponds to the fifth slot body, so that the positioning head can be pushed into the fifth slot body to position the main side plate on the outer frame.

7. The foldable box according to claim 1, characterized in that: The front side plate and / or the rear side plate are provided with a first through hole; The front side plate includes a first accommodating cavity, and the first accommodating cavity includes a flippable cover plate; The rear side plate includes an inner groove body, the upper end of the inner groove body is rotatably connected to a first bracket, the first bracket is provided with a second through hole, the lower end of the inner groove body is rotatably connected to a second bracket, the second bracket includes a boss adapted to the second through hole, and the outer diameter of the boss is smaller than the outer diameter of the main body of the second bracket; When the first bracket and the second bracket are both flipped and folded in the inner groove body, the boss is penetrated through the second through hole, and the first bracket covers the second bracket.

8. The foldable box according to claim 1 or 7, characterized in that: It also includes an upper cover plate for covering the upper opening of the accommodating cavity, and the left and right side plates include support bars for supporting the upper cover plate; The upper cover plate includes at least two cover plate groups, each cover plate group includes at least two cover plates that can be flipped and folded; The front end and / or rear end of the base includes a first extension portion extending upward, and at least one end of the left and right side panels includes a first folded edge. When the left and right side panels are flipped and folded, the outer end of the first folded edge abuts against the upper portion of the first extension portion to form a space for accommodating the flipped and folded cover panel group.

9. A cart, characterized in that: It comprises a cart body, on which a foldable box as claimed in any one of claims 1 to 8 is installed; The cart body comprises At least two connecting members, wherein the upper portion of the connecting members includes a plurality of positioning grooves with openings facing upward; A first frame, wherein two ends of the right end of the first frame are rotatably connected to the corresponding left ends of the connecting member, and a plurality of wheels are disposed on the left end of the first frame; and A second frame, wherein two ends of the left end of the second frame are rotatably connected to the right ends of the corresponding connecting members, and a plurality of wheels are arranged at the right end of the second frame; The right end of the first frame and the left end of the second frame are respectively provided with limiting columns adapted to the positioning grooves; The cart body has a first folded state and a second unfolded state. When the cart body is in the first state, the limit column leaves the positioning groove; when the cart body is in the second state, the limit column is inserted into the positioning groove.

10. A cart according to claim 9, characterized in that: The first frame and / or the second frame is provided with a handle; The cart body is provided with a plurality of second positioning members, the base is provided with a third positioning member matched with the second positioning member, and the second positioning member and the third positioning member are respectively provided with corresponding through holes so as to position the foldable box on the cart body through a pin shaft.

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