Luggage case with foldable backrest

Abstract

The utility model relates to a trunk with a foldable backrest, which comprises a trunk body and a frame, the trunk body is arranged on the frame, the frame is connected with a saddle component, the saddle component comprises a saddle main body, a backrest plate and a seat plate, the top of the saddle main body is recessed inwards to form a storage cavity, one end of the seat plate is rotatably connected with the front end of the saddle main body, and the other end of the seat plate is rotatably connected with the backrest plate. The other end of the seat plate is a free end capable of being opened and closed and can cover the storage cavity, one end of the backrest plate is rotatably connected with the rear end of the saddle body, and the other end of the backrest plate is a free end capable of being opened and closed and can rotate relative to the saddle body until the backrest plate is in an unfolded state or a stored state. The child seat is very convenient to use, when a child needs to be carried, the backrest plate can be folded from the interior of the containing cavity to be in an open state to be used as a backrest of the child, when the child does not need to be carried, the backrest plate can be folded and contained in the containing cavity, and space is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of luggage cases, in particular to a luggage case with a foldable backrest. Background Art

[0002] For example, a luggage case for carrying children with announcement number CN202874103U comprises a case body, an openable case cover with a zipper at the front of the case body, a push-pull retractable pull rod at the upper back of the case body, and main wheels at the bottom of the case body, a concave surface for placing a sponge pad is provided at the top of the case body, a closable backrest is provided at the rear edge of the top of the case body, and a foldable support frame is provided on the back of the case body, one end of the foldable support frame is connected to the back of the case body, the other end is connected to a roller, and the middle is connected to one end of a pair of folding rods, and the other end of the folding rods is connected to the back of the case body. However, the structure of the luggage case in the prior art is not stable enough. When a child sits on the sponge pad and leans against the backrest, the backrest is easily shaken due to vibration during the movement of the luggage case, and the child is very uncomfortable leaning against the shaking backrest, and sometimes even causes the child to fall off the luggage case, which is very inconvenient and unsafe for the user. Utility Model Content

[0003] The purpose of the utility model is to overcome the above-mentioned deficiencies of the prior art and to provide a luggage case with a foldable backrest which is stable in structure and convenient to use.

[0004] The purpose of the utility model is achieved through the following technical solutions:

[0005] A luggage case with a foldable backrest comprises a box body and a frame, wherein the box body is arranged on the frame, a seat assembly is connected to the frame, and the seat assembly comprises a seat body, a backrest board and a seat plate, wherein the top of the seat body is recessed inwardly to form a storage cavity, one end of the seat plate is rotatably connected to the front end of the seat body, the other end of the seat plate is an openable and closable free end and can cover the storage cavity, one end of the backrest board is rotatably connected to the rear end of the seat body, and the other end of the backrest board is a foldable free end. The free end of the seat can be opened and closed and can be rotated relative to the vehicle seat body to the backrest board in an expanded state or a stored state. In the initial state, the backrest board is in the stored state, and the backrest board is folded and stored in the storage cavity and covered by the seat board. When the backrest board is transferred from the stored state to the expanded state, the seat board is rotated and folded upward to be in an open state so that the backrest board can be folded upward to be in a fully expanded state, and then the seat board can be covered so that its free end abuts against the backrest board and the backrest board is locked in the expanded state.

[0006] Furthermore, a first rotating connection portion is provided at the rear end of the seat body, a first rotating connection piece is provided on the backrest plate, a first mounting hole is provided on the first rotating connection piece, a first rotating shaft is passed through the first mounting hole, a first through hole is provided on the first rotating connection portion, the first rotating connection piece is passed through the first through hole and the first mounting hole in sequence through the first rotating shaft and is rotatably connected to the first rotating connection portion.

[0007] Furthermore, a second rotating connection portion is provided at the front end of the seat body, a second rotating connection piece is provided on the seat plate, a second mounting hole is provided on the second rotating connection piece, a second rotating shaft is passed through the second mounting hole, a second through hole is provided on the second rotating connection portion, and the second rotating connection piece is sequentially passed through the second through hole and the second mounting hole through the second rotating shaft and is rotatably connected to the second rotating connection portion.

[0008] Furthermore, the first rotating connection part is an installation cavity which is recessed inwardly and connected to the storage cavity on one side. A long avoidance hole is arranged on the bottom cavity wall of the installation cavity. A limiting member which is penetrated through the avoidance hole is arranged on the first rotating connection member. When the backrest plate is in an open state, the limiting member abuts against the front end of the avoidance hole for limiting position. When the backrest plate is in a folded state, the limiting member abuts against the rear end of the avoidance hole for limiting position.

[0009] Furthermore, a circle of stop edge is provided at the upper end of the storage cavity, and when the seat plate is covered, the bottom end of the seat plate is stopped by the stop edge.

[0010] Furthermore, the frame also includes a front leg frame that can be unfolded or folded relative to the box body, a caster is arranged at the lower end of the front leg frame, and a rotating wheel is arranged at the bottom of the box body.

[0011] Furthermore, a retractable pull rod is provided on the frame.

[0012] Furthermore, armrests are connected to both sides of the backrest plate.

[0013] Furthermore, a cushion is provided on the seat plate.

[0014] Furthermore, the size of the backrest plate is adapted to the size of the storage cavity.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] The utility model provides a luggage case with a foldable backrest. When the backrest is needed, the seat plate can be folded first to be in an open state, and then the backrest plate can be folded upward to be in an unfolded state. After that, the seat plate is covered on the vehicle seat body and the backrest plate is locked in the unfolded state. At this time, the backrest plate in the unfolded state is very stable and very convenient to use. At the same time, the backrest plate can be stored in the storage cavity for folding and storage, thereby reducing the occupied volume of the luggage case. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a three-dimensional structure diagram of the backrest board in the utility model in an open state. Figure 1 .

[0018] Figure 2 This is a three-dimensional structure diagram of the backrest board in the utility model in an open state. Figure 2 .

[0019] Figure 3 It is a three-dimensional structural schematic diagram of the backrest board in the utility model in the storage state.

[0020] Figure 4 It is a three-dimensional structural schematic diagram of the vehicle frame in the utility model.

[0021] Figure 5 It is a three-dimensional structural schematic diagram of the vehicle seat assembly in the utility model.

[0022] Figure 6 This is a schematic diagram of the exploded structure of the seat assembly in the utility model. Figure 1 .

[0023] Figure 7 This is a schematic diagram of the exploded structure of the seat assembly in the utility model. Figure 2 . DETAILED DESCRIPTION

[0024] The utility model is further described in detail below with reference to the embodiments given in the accompanying drawings.

[0025] like Figures 1 to 7As shown, a luggage case with a foldable backrest provided in this embodiment comprises a case body 1 and a frame 2, wherein the case body 1 is arranged on the frame 2, and a seat assembly 3 is connected to the frame 2. Specifically, in order to facilitate pushing and pulling the luggage case, a retractable pull rod 21 is arranged on the frame 2. The seat assembly 3 comprises a seat body 4, a backrest board 5 and a seat board 6. Specifically, in order to make the child sit more comfortably, a cushion 60 is also arranged on the seat board 6. The top of the seat body 4 is recessed inwardly to form a storage cavity 7, one end of the seat board 6 is rotatably connected to the front end of the seat body 4, and the other end of the seat board 6 is a free end that can be opened and closed and can be covered on the storage cavity 7. One end of the backrest board 5 is rotatably connected to the rear end of the seat body 4, and the other end of the backrest board 5 is a free end that can be opened and closed and can be rotated relative to the seat body 4 until the backrest board 5 is in an expanded state or a stored state. Specifically, armrests 8 are connected to both sides of the backrest plate 5, which can make children sit more comfortably while ensuring their safety.

[0026] As described above, in the initial state, the backrest board 5 is in the storage state, and the backrest board 5 is folded and stored in the storage cavity 7 and covered by the seat plate 6. When the backrest board 5 is transferred from the storage state to the unfolded state, the seat plate 6 is rotated upward to be in the open state so that the backrest board 5 can be folded upward to be in the fully unfolded state, and then the seat plate 6 can be covered so that its free end abuts against the backrest board 5 and the backrest board 5 is locked in the unfolded state. Specifically, the size of the backrest board 5 is adapted to the size of the storage cavity 7.

[0027] As described above, a first rotating connection portion 41 is provided at the rear end of the seat body 4, a first rotating connection member 51 is provided on the backrest plate 5, a first mounting hole 52 is provided on the first rotating connection member 51, a first rotating shaft 53 is passed through the first mounting hole 52, a first through hole 42 is provided on the first rotating connection portion 41, and the first connecting rotating connection member 51 is sequentially passed through the first through hole 42 and the first mounting hole 52 through the first rotating shaft 53 and is rotatably connected to the first rotating connection portion 41.

[0028] As described above, a second rotating connection portion 43 is provided at the front end of the seat body 4, a second rotating connection member 61 is provided on the seat plate 6, a second mounting hole 62 is provided on the second rotating connection member 61, a second rotating shaft 63 is passed through the second mounting hole 62, a second through hole 44 is provided on the second rotating connection portion 43, and the second connecting rotating connection member 61 is sequentially passed through the second through hole 44 and the second mounting hole 62 through the second rotating shaft 63 and is rotatably connected to the second rotating connection portion 43.

[0029] As described above, the first rotating connection part 41 is a mounting cavity 45 that is inwardly recessed and communicates with the storage cavity 7 on one side. A long strip-shaped avoidance hole 46 is provided on the bottom cavity wall of the mounting cavity 45. The first rotating connection member 51 is provided with a stopper 47 that penetrates the avoidance hole 46. When the backrest board 5 is in the open state, the stopper 47 abuts against the front end of the avoidance hole 46 for a limit, and when the backrest board 5 is in the folded state, the stopper 47 abuts against the rear end of the avoidance hole 46 for a limit.

[0030] As described above, a circle of stop edge 71 is provided at the upper end of the storage cavity 7 , and when the seat plate 6 is covered, the bottom end of the seat plate 6 is stopped by the stop edge 71 .

[0031] As described above, the frame 2 further includes a front leg frame 22 that can be unfolded or folded relative to the box body 1, a caster 23 is provided at the lower end of the front leg frame 22, and a rotating wheel 11 is provided at the bottom of the box body 1. When the front leg frame 22 and the box body 11 are unfolded, a triangular support structure is formed with the ground, and the children's suitcase is very stable when being pushed. When the front leg frame 22 and the box body 1 are folded, the space occupied by the children's suitcase can be reduced, making it convenient to carry and store the children's suitcase.

[0032] In summary, when the backrest board 5 is needed, the seat board 6 can be folded first to be in the open state, and then folded upward to be in the unfolded state, and then the seat board 6 is covered on the vehicle seat body 4 and the backrest board 5 is locked in the unfolded state. At this time, the backrest board 5 in the unfolded state is very stable and very convenient to use. Otherwise, the backrest board 5 can be stored in the storage cavity 7 to reduce the occupied volume of the luggage box.

[0033] The above is only a preferred embodiment of the present utility model, and it cannot be used to limit the scope of the implementation of the present utility model. That is, all simple equivalent changes and modifications made according to the scope of the patent application of the present utility model and the content of the utility model description are still within the scope of the present utility model patent.

Claims

1. A luggage case with a foldable backrest, comprising a case body and a frame, wherein the case body is arranged on the frame, and characterized in that: The foldable seat back is configured to be folded upward to form a foldable seat, wherein the foldable seat back is configured to be folded upward to form a foldable seat, wherein the foldable seat back is configured to be folded upward to form a foldable seat.

2. A luggage case with a foldable backrest according to claim 1, characterized in that: A first rotating connection portion is provided at the rear end of the seat body, a first rotating connection piece is provided on the backrest plate, a first mounting hole is provided on the first rotating connection piece, a first rotating shaft is passed through the first mounting hole, a first through hole is provided on the first rotating connection portion, the first rotating connection piece is passed through the first through hole and the first mounting hole in sequence through the first rotating shaft and is rotatably connected to the first rotating connection portion.

3. A luggage case with a foldable backrest according to claim 2, characterized in that: A second rotating connection portion is provided at the front end of the seat body, a second rotating connection piece is provided on the seat plate, a second mounting hole is provided on the second rotating connection piece, a second rotating shaft is passed through the second mounting hole, a second through hole is provided on the second rotating connection portion, and the second rotating connection piece is passed through the second through hole and the second mounting hole in sequence through the second rotating shaft and is rotatably connected to the second rotating connection portion.

4. A luggage case with a foldable backrest according to claim 3, characterized in that: The first rotating connection part is an installation cavity which is recessed inwardly and communicated with the storage cavity on one side. A long avoidance hole is arranged on the bottom cavity wall of the installation cavity. A limiting member which is penetrated into the avoidance hole is arranged on the first rotating connection member. When the backrest plate is in an open state, the limiting member abuts against the front end of the avoidance hole for limiting position. When the backrest plate is in a folded state, the limiting member abuts against the rear end of the avoidance hole for limiting position.

5. The luggage case with a foldable backrest according to claim 1, characterized in that: A circle of stop edge is arranged at the upper end of the storage cavity, and when the seat plate is covered, the bottom end of the seat plate is stopped by the stop edge.

6. The luggage case with a foldable backrest according to claim 1, characterized in that: The frame also includes a front foot frame which can be unfolded or folded relative to the box body, a caster is arranged at the lower end of the front foot frame, and a rotating wheel is arranged at the bottom of the box body.

7. The luggage case with a foldable backrest according to claim 1, characterized in that: The frame is provided with a retractable pull rod.

8. The luggage case with a foldable backrest according to claim 1, characterized in that: Armrests are connected to both sides of the backrest plate.

9. The luggage case with a foldable backrest according to claim 1, characterized in that: The seat plate is also provided with a cushion.

10. The luggage case with a foldable backrest according to claim 1, characterized in that: The size of the backrest plate is adapted to the size of the storage cavity.

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