Camper van

Abstract

A caravan characterized in that it comprises: a frame (1) that is unfoldable or collapsible; a storage compartment (2) that is unfoldable or collapsible and flexible; wherein the storage compartment (2) is arranged in the frame (1), and the unfolding or collapsing of the frame (1) can cause the storage compartment (2) to unfold or collapse; a push bar (3) arranged at the front of the frame (1); rollers (4) arranged at the bottom of the frame (1); and a strap (5) wherein the strap (5) is located between the bottom of the storage compartment (2) and the frame (1), and the strap (5) is arranged in a forward-backward direction; wherein the strap (5) comprises a first connecting end (51) and a second connecting end (52), and both the first connecting end (51) and the second connecting end (52) are attached to the frame (1).

Description

Technical field The present application concerns the field of caravans, in particular a caravan. State of the art A camping cart is a portable piece of camping equipment typically used to transport and store camping gear, food, and other essential items. To improve portability and ease of use, and to save the user time and effort, camping carts are generally foldable or collapsible. Existing camping carts generally consist of a frame and a flexible storage compartment. However, because the storage compartment is flexible, its rigidity is insufficient. Furthermore, the frame is made up of several foldable poles, meaning there are many notches in the base. This can cause the storage compartment to tip or collapse easily if items are not packed evenly. Content of the present application To overcome the disadvantages of the current state of the art, the present application offers a camper van. The technical solution used in this application to solve the technical problems is as follows. The present application provides for a caravan comprising: a frame that is unfoldable or collapsible; a storage compartment that is unfoldable or collapsible and flexible; wherein the storage compartment is arranged in the frame, and the unfolding or collapsing of the frame can cause the storage compartment to unfold or collapse; a push bar arranged at the front of the frame; rollers arranged at the bottom of the frame; and a strap, wherein the strap is located between the bottom of the storage compartment and the frame, and the strap is arranged in a forward-backward direction. In some embodiments, the band comprises a first connecting end and a second connecting end, with both the first connecting end and the second connecting end being attached to the frame. In some embodiments, a crossband is arranged at the rear end of the frame, wherein the second connecting end of the band extends a band extension section to the rear, and the rear end of the band extension section is connected to the crossband. In some embodiments, the rear end of the band extension section is sewn into the middle of the crossband. In some embodiments, the frame comprises two front columns, two middle columns, and two rear columns; wherein the bottom wall of the frame comprises a first folding component and a second folding component, the first folding component being pivotably mounted on the bottoms of the two front columns and on the bottoms of the two middle columns, and the second folding component being pivotably mounted on the bottoms of the two middle columns and on the bottoms of the two rear columns; the first connecting end of the strap being attached to the first folding component, and the second connecting end of the strap being attached to the second folding component. In some embodiments, mounting areas are arranged at both ends of the crossbar, and the two mounting areas are each attached to the two rear columns. In some embodiments, the first folding component comprises a first center connecting part and four first connecting rods, wherein the first ends of each first connecting rod are pivotably mounted on the first center connecting part and the second ends of each first connecting rod are pivotably mounted on the bases of the two front columns and on the bases of the two middle columns; wherein the second folding component comprises a second center connecting part and four second connecting rods; the first ends of each second connecting rod are pivotably mounted on the second center connecting part and the second ends of each second connecting rod are pivotably mounted on the bases of the two middle columns and on the bases of the two rear columns. In some embodiments, the first connecting end of the band is attached to the first center connecting part, and the second connecting end of the band is attached to the second center connecting part. In some embodiments, the caravan further comprises a first screw and a second screw; wherein the first screw passes through the first connecting end of the strap and is screwed to the first center connecting part, and the second screw passes through the second connecting end of the strap and is screwed to the second center connecting part. In some embodiments, a first fastening strap and a second fastening strap are arranged at the bottom of the storage compartment, wherein the first fastening strap is attached to the first center connecting part and the second fastening strap is attached to the second center connecting part. In some designs, a handle area is arranged in the storage compartment. In some embodiments, connecting columns are arranged behind each of the two rear columns, with the bottoms of the two connecting columns being pivotably mounted on the bottoms of the two rear columns. In some embodiments, the caravan further includes a locking structure wherein the locking structure can lock the connecting column to the rear column; and when the locking structure is unlocked, the connecting column can rotate open relative to the rear column. In some embodiments, the locking structure comprises a locking sleeve, the locking sleeve is fitted onto the rear column, the locking sleeve extends towards the connecting column and has an elastic locking latch, and the locking latch engages in the connecting column to lock the connecting column to the rear column. In some embodiments, a stop block is arranged on the rear column, a rotatable stop guide slide is arranged on the connecting column, the stop block is located in the stop guide slide, and when the connecting column opens by rotating relative to the rear column, the stop block slides relative to the stop guide slide to limit the range of motion of the opening of the connecting column. In some embodiments, a support structure is arranged between the two rear columns. In some embodiments, the support structure comprises a first support rod, a second support rod, and a connecting sleeve; wherein the first support rod is pivotably mounted on the top of one of the rear columns; a first end of the connecting sleeve is fitted onto the end piece of the first support rod and the first end of the connecting sleeve can slide relative to the end piece of the first support rod; the second support rod is pivotably mounted on the top of the other rear column; and when the first support rod and the second support rod rotate into a straight line, the first end of the connecting sleeve slides relative to the end piece of the first support rod, so that a second end of the connecting sleeve is fitted onto the end piece of the second support rod. In some embodiments, a first limiting section is arranged on the outer wall of the end piece of the first support rod, a second limiting section is arranged on the inner wall of the first end of the connecting sleeve, and the interaction of the first limiting section and the second limiting section prevents the first end of the connecting sleeve from sliding off the end piece of the first support rod. In some embodiments, the frame further comprises folding connecting rod components, the folding connecting rod component is arranged between the two front columns, the folding connecting rod component is arranged between each of the two front columns and the two middle columns, the folding connecting rod component is arranged between each of the two middle columns and the two rear columns, and the connecting rod component is arranged between the two connecting columns. The advantageous effect of the present application is: The above structural arrangement provides a band between the bottom of the storage compartment and the frame, arranged in a forward-backward direction to effectively reinforce the bottom of the storage compartment and thus prevent the bottom of the storage compartment from tipping, collapsing or the like during the stowing process. Brief description of the drawings To clarify the technical solution in the embodiments of the present application, the drawings required for the description of the embodiments are briefly presented below. The drawings described below represent only some embodiments of the present application. A person skilled in the art can derive further drawings from these without inventive step. The present application and the embodiments are further explained below with reference to the drawings. Fig. 1 is a schematic perspective view according to the present application. Fig. 2 is a schematic top view according to the present application. Fig. 3 is a schematic bottom view according to the present application. Fig. 4 is a schematic representation according to the present application without a storage compartment. Fig. 5 is a schematic representation of the folding mechanism according to the present application without a storage compartment. Fig. 6 is a schematic representation according to the present application without a storage compartment, showing the connecting columns in the unfolded position. Fig. 7 is a schematic representation of Fig. 6 without the band and crossband. Fig. 8 is a schematic representation of a first folding component. Fig. 9 is a schematic representation of a second folding component. Fig. 10 is an enlarged view of area A in Fig. 4.Fig. 11 is a schematic representation of Fig. 6 from a different viewpoint. Fig. 12 is a magnified view of area B in Fig. 11. Fig. 13 is a cross-sectional view of a support structure. Detailed description of the embodiments With reference to Figs. 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12 to 13, a caravan comprising: a frame 1 which is unfoldable or collapsible; a storage compartment 2 which is unfoldable or collapsible and flexible; wherein the storage compartment 2 is arranged in the frame 1, and the unfolding or collapsing of the frame 1 can cause the storage compartment 2 to unfold or collapse; wherein the storage compartment may, for example, be made of fabric; a push bar 3 which is arranged at the front of the frame 1; wheels 4 which are arranged at the bottom of the frame 1; and a band 5, wherein the band 5 is located between the bottom of the storage compartment 2 and the frame 1 and the band 5 is arranged in a forward-backward direction. The above structural arrangement incorporates a band positioned between the base of the storage compartment and the frame, running in a forward-backward direction. This effectively reinforces the base of the storage compartment, preventing it from tipping, collapsing, or similar issues during the storage process. Furthermore, this design allows the storage compartment to support heavier items. Here, the strap 5 comprises a first connecting end 51 and a second connecting end 52, wherein both the first connecting end 51 and the second connecting end 52 are attached to the frame 1 to fix the strap so that the strap can effectively reinforce and support the bottom of the storage compartment. Furthermore, a transverse band 6 is arranged at the rear end of the frame 1. The second connecting end 52 of the band 5 extends a band extension section 53 to the rear, and the rear end of the band extension section 53 is connected to the transverse band 6. On the one hand, this increases the extension area of ​​the band, so that the band has a greater length in the forward-backward direction and can reinforce and support the floor of the storage compartment over a larger area; on the other hand, the arrangement of the transverse band ensures that the rear area of ​​the storage compartment is horizontally reinforced and supported, which improves the reinforcing and supporting effect. In some preferred embodiments, the rear end of the band extension section 53 is sewn into the middle of the crossband 6 to achieve mutual fixation of the band extension section and the crossband. In some preferred embodiments, the frame 1 comprises two front columns 11, two middle columns 12, and two rear columns 13; the bottom wall of the frame 1 comprises a first folding component 7 and a second folding component 8, the first folding component 7 being pivotably mounted on the bottoms of the two front columns 11 and on the bottoms of the two middle columns 12, and the second folding component 8 being pivotably mounted on the bottoms of the two middle columns 12 and on the bottoms of the two rear columns 13; the first connecting end 51 of the strap 5 is attached to the first folding component 7, and the second connecting end 52 of the strap 5 is attached to the second folding component 8. Furthermore, mounting areas 61 are arranged at both ends of the crossbar 6, and the two mounting areas 61 are each attached to the two rear columns 13 to enable the assembly of the crossbar. In some preferred embodiments, the first folding component 7 comprises a first center connecting part 71 and four first connecting rods 72, wherein the first ends of each first connecting rod 72 are pivotably mounted on the first center connecting part 71 and the second ends of each first connecting rod 72 are pivotably mounted on the bases of the two front columns 11 and on the bases of the two middle columns 12. The second folding component 8 comprises a second center connecting part 81 and four second connecting rods 82, wherein the first ends of each second connecting rod 82 are pivotably mounted on the second center connecting part 81 and the second ends of each second connecting rod 82 are pivotably mounted on the bases of the two middle columns 12 and on the bases of the two rear columns 13.When folding, the first and second center connecting pieces are pulled upwards to fold the two front and two middle columns closer together using the first connecting rods, and the two middle and two rear columns closer together using the second connecting rods. Similarly, when unfolding, the first and second center connecting pieces can be pushed downwards to unfold the two front and two middle columns using the first connecting rods, and the two middle and two rear columns using the second connecting rods. Specifically, a first fastening strap 21 and a second fastening strap 22 are arranged on the bottom of storage compartment 2, wherein the first fastening strap 21 is attached to the first central connecting part 71 and the second fastening strap 22 is attached to the second central connecting part 81. Both the first and the second fastening straps each comprise two strap units, which are connected to each other by hook and loop fasteners to secure the first and second fastening straps. In addition, a handle area 23 is arranged in storage compartment 2 to allow the first center connecting part and the second center connecting part to be pulled upwards simultaneously when folding. Furthermore, the frame comprises 1 folding connecting rod component 17. One folding connecting rod component 17 is arranged between the two front columns 11, another between each of the two front columns 11 and the two middle columns 12, a third between each of the two middle columns 12 and the two rear columns 13, and a fourth between the two connecting columns 14. Each connecting rod component has hinge sections at its four corners. These hinge sections are pivotally mounted on the upper and lower surfaces of the columns on both sides of the connecting rod component. In this way, the connecting rod components can form the side walls of the frame and can be unfolded or folded together with the columns.The structural form of the connecting rod component can be varied and is not defined in more detail here, as long as it allows for unfolding or folding. In some preferred embodiments, the first connecting end 51 of the band 5 is attached to the first center connecting part 71, and the second connecting end 52 of the band 5 is attached to the second center connecting part 81. In detail, the caravan further comprises a first screw 54 and a second screw 55, wherein the first screw 54 passes through the first connecting end 51 of the band 5 and is screwed to the first center connecting part 71, and the second screw 55 passes through the second connecting end 52 of the band 5 and is screwed to the second center connecting part 81 in order to realize the fixing of the first connecting end 51 of the band 5 and the second connecting end 52 of the band 5. In some preferred embodiments, connecting columns 14 are arranged behind each of the two rear columns 13, wherein the bottoms of the two connecting columns 14 are pivotably mounted on the bottoms of the two rear columns 13. Furthermore, the caravan includes a locking structure 9, wherein the locking structure 9 can lock the connecting column 14 to the rear column 13; and when the locking structure 9 is unlocked, the connecting column 14 can rotate open relative to the rear column 13, i.e., the rear of the frame can open an opening for loading and unloading items, which facilitates the use of the caravan. Specifically, the locking structure 9 comprises a locking sleeve 91, which is fitted onto the rear column 13; the locking sleeve 91 extends towards the connecting column 14 and has an elastic locking latch 92, and the locking latch 92 engages in the connecting column 14 to lock the connecting column 14 to the rear column 13. In use, only the connecting column needs to be released from the elastic locking latch. Furthermore, a stop block 15 is arranged on the rear column 13, and a rotatable stop guide slide 16 is arranged on the connecting column 14; the stop block 15 is located in the stop guide slide 16, and when the connecting column 14 rotates open relative to the rear column 13, the stop block 15 slides relative to the stop guide slide 16 to limit the range of motion of the opening of the connecting column 14. The maximum range to which the connecting column can open is reached when the plane formed by the two connecting columns is substantially level with the bottom wall of the frame. In some preferred embodiments, a support structure 10 is arranged between the two rear columns 13. When the connecting columns are unfolded, the presence of the support structure ensures that the overall structure of the frame is more stable. In detail, the support structure 10 comprises a first support rod 101, a second support rod 102, and a connecting sleeve 103, wherein the first support rod 101 is pivotably mounted on the top of one of the rear columns 13, the first end of the connecting sleeve 103 is attached to the end piece of the first support rod 101 and the first end of the connecting sleeve 103 can slide relative to the end piece of the first support rod 101, and the second support rod 102 is pivotably mounted on the top of the other rear column 13. When the first support rod 101 and the second support rod 102 rotate into a straight line, the first end of the connecting sleeve 103 slides relative to the end piece of the first support rod 101, so that the second end of the connecting sleeve 103 is placed onto the end piece of the second support rod 102, thereby realizing the assembly combination of the first support rod and the second support rod and achieving the support function.Similarly, by allowing the connecting sleeve to slide so that the second end of the connecting sleeve is separated from the end piece of the second support rod, the first support rod can be separated from the second support rod, and the first support rod and the second support rod can of course rotate downwards and have no supporting function. Furthermore, a first limiting section 104 is arranged on the outer wall of the end piece of the first support rod 101, and a second limiting section 105 is arranged on the inner wall of the first end of the connecting sleeve 103. The interaction of the first limiting section 104 and the second limiting section 105 prevents the first end of the connecting sleeve 103 from slipping off the end piece of the first support rod 101, resulting in a simple and reliable structure. Additionally, a stop section 106 is arranged on the second support rod 102. This stop section ensures that when the second end of the connecting sleeve 103 is attached to the end piece of the second support rod 102, the second end of the connecting sleeve 103 rests against the stop section 106, thus verifying that the connecting sleeve 103 is correctly installed. The above description presents one or more embodiments combined with specific content and does not establish that the actual implementation of the present application is limited to this information. Any similarities or equivalences with the method, structure, etc., of the present application, or any technical derivations or substitutions made under the premise of the concept of the present application, should be considered within the scope of protection of the present application.

Claims

A caravan characterized in that it comprises: a frame (1) that is unfoldable or collapsible; a storage compartment (2) that is unfoldable or collapsible and flexible; wherein the storage compartment (2) is arranged in the frame (1), and the unfolding or collapsing of the frame (1) can cause the storage compartment (2) to unfold or collapse; a push bar (3) arranged at the front of the frame (1); rollers (4) arranged at the bottom of the frame (1); and a strap (5) wherein the strap (5) is located between the bottom of the storage compartment (2) and the frame (1), and the strap (5) is arranged in a forward-backward direction; wherein the strap (5) comprises a first connecting end (51) and a second connecting end (52), and both the first connecting end (51) and the second connecting end (52) are attached to the frame (1). The caravan according to claim 1, wherein a transverse band (6) is arranged at the rear end of the frame (1), the second connecting end (52) of the band (5) is extended to the rear by a band extension section (53), and the rear end of the band extension section (53) is connected to the transverse band (6). The caravan according to claim 1 or 2, wherein the frame (1) comprises two front columns (11), two middle columns (12), and two rear columns (13); the bottom wall of the frame (1) comprises a first folding component (7) and a second folding component (8), the first folding component (7) being pivotably mounted on the bottoms of the two front columns (11) and on the bottoms of the two middle columns (12), and the second folding component (8) being pivotably mounted on the bottoms of the two middle columns (12) and on the bottoms of the two rear columns (13); the first connecting end (51) of the strap (5) is attached to the first folding component (7), and the second connecting end (52) of the strap (5) is attached to the second folding component (8). The caravan according to claim 3, wherein an attachment area (61) is arranged at each end of the crossbar (6), and the two attachment areas (61) are each placed on the two rear columns (13).The caravan according to claim 3, wherein the first folding component (7) comprises a first center connecting part (71) and four first connecting rods (72); the first ends of each first connecting rod (72) are pivotably mounted on the first center connecting part (71), and the second ends of each first connecting rod (72) are pivotably mounted on the bases of the two front columns (11) and on the bases of the two middle columns (12); wherein the second folding component (8) comprises a second center connecting part (81) and four second connecting rods (82); the first ends of each second connecting rod (82) are pivotably mounted on the second center connecting part (81), and the second ends of each second connecting rod (82) are pivotably mounted on the bases of the two middle columns (12) and on the bases of the two rear columns (13);the first connecting end (51) of the band (5) is attached to the first central connecting part (71), and the second connecting end (52) of the band (5) is attached to the second central connecting part (81). The caravan according to claim 5, further comprising a first screw (54) and a second screw (55); wherein the first screw (54) passes through the first connecting end (51) of the strap (5) and is screwed to the first central connecting part (71), and the second screw (55) passes through the second connecting end (52) of the strap (5) and is screwed to the second central connecting part (81). The caravan according to claim 5, wherein a first fastening strap (21) and a second fastening strap (22) are arranged on the floor of the storage compartment (2); the first fastening strap (21) is attached to the first central connecting part (71), and the second fastening strap (22) is attached to the second central connecting part (81). The caravan according to claim 3, wherein a connecting column (14) is arranged behind each of the two rear columns (13), and the bases of the two connecting columns (14) are pivotably mounted on the bases of the two rear columns (13); the caravan further comprises a locking structure (9), wherein the locking structure (9) can lock the connecting column (14) to the rear column (13); the connecting column (14), when the locking structure (9) is unlocked, can rotate open relative to the rear column (13). The caravan according to claim 8, wherein the rear column (13) is provided with a stop block (15), and the connecting column (14) is provided with a rotatable stop guide slide (16); the stop block (15) is located in the stop guide slide (16), and when the connecting column (14) opens by rotating relative to the rear column (13), the stop block (15) slides relative to the stop guide slide (16) to limit the range of movement of the opening of the connecting column (14). The caravan according to claim 8, wherein a support structure (10) is arranged between the two rear columns (13); the support structure (10) comprises a first support rod (101), a second support rod (102), and a connecting sleeve (103); the first support rod (101) is pivotably mounted on the top of one of the rear columns (13), a first end of the connecting sleeve (103) is attached to the end piece of the first support rod (101), and the first end of the connecting sleeve (103) can slide relative to the end piece of the first support rod (101); the second support rod (102) is pivotably mounted on the top of the other rear column (13), and when the first support rod (101) and the second support rod (102) rotate into a straight line, the first end of the connecting sleeve (103) slides relative to the end piece of the first support rod (101), so that a second end of the connecting sleeve (103) is fitted onto the end piece of the second support rod (102).

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