Vehicle with expandable rear cabin space

Abstract

The invention relates to a vehicle with an expandable rear compartment space, which comprises a carriage, the carriage comprises a carriage top plate, a carriage bottom plate, a carriage left side coaming and a carriage right side coaming, a left back door is hinged to the carriage left side coaming, and a right back door is hinged to the carriage right side coaming; the rear cabin comprises a rear cabin top plate connected to the carriage top plate in a sliding mode, a rear cabin bottom plate connected to the carriage bottom plate in a sliding mode, a rear cabin left auxiliary back door hinged to the left back door and a rear cabin right auxiliary back door hinged to the right back door. When the storage space of the carriage needs to be expanded and increased, the rear cabin top plate and the rear cabin bottom plate extend out of the carriage top plate and the carriage bottom plate, and the rear cabin left auxiliary back door and the rear cabin right auxiliary back door are unfolded from the left back door and the right back door respectively. The rear cabin top plate, the rear cabin bottom plate, the left back door, the right back door, the rear cabin left auxiliary back door and the rear cabin right auxiliary back door are connected with one another to define a rear cabin protruding out of the rear portion of the carriage, and the storage space of the vehicle is expanded.

Description

Technical Field

[0001] The present application relates to the technical field of vehicle compartment expansion, and in particular to a vehicle with an expandable rear cabin space. Background Art

[0002] As an important means of transportation, car users pay more and more attention to the comfort of riding space and the use of cabin storage volume, and constantly pursue larger passenger living space. However, the rear cabin space volume of passenger cars with traditional technology is usually small. For example, the rear cabin back door of two-box / SUV cars generally adopts the "hatchback door" type, the three-box car generally adopts the "shelf board + rear hatch" type, and some off-road vehicles adopt the "single-sided tailgate" type. The rear cabin volume is generally only about 350-1200L, and the space for loading items is limited, which makes it difficult to meet the users' growing and diverse life needs. Summary of the invention

[0003] The embodiment of the present application provides a vehicle with an expandable rear cabin space to solve the problem in the related art that the vehicle's article loading space is limited and difficult to meet the user's needs.

[0004] An embodiment of the present application provides a vehicle with expandable rear cabin space, comprising:

[0005] A carriage, the carriage comprising a carriage roof, a carriage floor, a carriage left side panel, and a carriage right side panel, the carriage left side panel being hinged with a left rear door, and the carriage right side panel being hinged with a right rear door;

[0006] The rear cabin comprises a rear cabin top plate slidably connected to the vehicle compartment top plate, a rear cabin bottom plate slidably connected to the vehicle compartment bottom plate, a rear cabin left auxiliary rear cabin door hinged on the left rear door, and a rear cabin right auxiliary rear cabin door hinged on the right rear door.

[0007] In some embodiments: the vehicle roof, vehicle floor, vehicle left side panel, and vehicle right side panel are fixedly connected to each other to form a compartment with a rectangular cross-section and an opening at the rear; the rear cabin roof, rear cabin floor, left rear door, right rear door, left auxiliary rear door, and right auxiliary rear door are connected to each other to form a cabin with a rectangular cross-section and an opening at the front, and the cabin is connected to the vehicle compartment.

[0008] In some embodiments: an upper chamber with an opening facing rearwards and used to extend or retract the rear cabin top plate is provided in the car top plate, the rear cabin top plate is located in the upper chamber and is slidably connected to the car top plate via a slide rail, and a first driving mechanism for driving the rear cabin top plate to move along the slide rail is provided in the upper chamber.

[0009] In some embodiments: the height of the top edges of the left and right rear doors is higher than the upper chamber of the roof of the compartment, and when the left and right rear doors close the compartment, the left and right rear doors cover and block the upper chamber.

[0010] In some embodiments: a lower chamber with an opening facing rearwards and used to extend or retract the rear cabin floor is provided in the vehicle compartment floor; the rear cabin floor is located in the lower chamber and is slidably connected to the vehicle compartment floor via a slide rail; a second driving mechanism is provided in the lower chamber to drive the rear cabin floor to move along the direction of the slide rail.

[0011] In some embodiments: the height of the bottom edges of the left and right rear doors is lower than the lower chamber of the vehicle compartment floor, and when the left and right rear doors close the vehicle compartment, the left and right rear doors cover and block the lower chamber.

[0012] In some embodiments: the inner walls of the left and right rear back doors are provided with horizontally arranged sliding grooves for slidingly connecting the rear cabin top plate and the rear cabin bottom plate, and the two side walls of the rear cabin top plate and the rear cabin bottom plate are fixedly connected with sliders that are adapted to the sliding grooves and are slidably connected to each other, the cross-section of the sliding groove is a "C"-shaped structure, and the cross-section of the slider is an "I"-shaped structure.

[0013] In some embodiments: the left auxiliary rear door of the rear cabin is rotatably connected to the left rear door via a first hinge, and when the left auxiliary rear door of the rear cabin rotates forwardly around the first hinge, the left auxiliary rear door of the rear cabin is flipped to the outside of the left rear door and is in an unfolded state, and when the left auxiliary rear door of the rear cabin rotates backwardly around the first hinge, the left auxiliary rear door of the rear cabin is flipped to the inside of the left rear door and is in a folded state;

[0014] The rear cabin right auxiliary rear door is rotatably connected to the right rear door via a second hinge. When the rear cabin right auxiliary rear door rotates forwardly around the second hinge, the rear cabin right auxiliary rear door flips over to the outside of the right rear door and is in an expanded state. When the rear cabin right auxiliary rear door rotates reversely around the second hinge, the rear cabin right auxiliary rear door flips over to the inside of the right rear door and is in a folded state.

[0015] In some embodiments: the left rear cabin auxiliary back door and the right rear cabin auxiliary back door are both located between the rear cabin top plate and the rear cabin bottom plate, the upper and lower ends of the left rear cabin auxiliary back door are both connected to the rear cabin top plate and the rear cabin bottom plate through electromagnetic locks, the upper and lower ends of the right rear cabin auxiliary back door are both connected to the rear cabin top plate and the rear cabin bottom plate through electromagnetic locks, and the left rear cabin auxiliary back door and the right rear cabin auxiliary back door are connected through a mechanical door lock.

[0016] In some embodiments: the overlapping parts where the rear cabin top plate, the rear cabin bottom plate, the left rear door, the right rear door, the left rear door and the right rear door are connected to each other are all provided with waterproof rubber strips, and the top surface of the rear cabin top plate is provided with a plurality of drainage guide grooves spaced apart from each other, and the drainage guide grooves extend along the length direction of the compartment.

[0017] The beneficial effects of the technical solution provided by this application include:

[0018] An embodiment of the present application provides a vehicle with an expandable rear cabin space. Since the vehicle with an expandable rear cabin space of the present application is provided with a carriage, the carriage includes a carriage roof, a carriage floor, a left side panel of the carriage, and a right side panel of the carriage, a left rear door is hinged on the left side panel of the carriage, and a right rear door is hinged on the right side panel of the carriage; a rear cabin, the rear cabin includes a rear cabin roof slidably connected to the carriage roof, a rear cabin bottom plate slidably connected to the carriage floor, a rear cabin left auxiliary rear door hinged on the left rear door, and a rear cabin right auxiliary rear door hinged on the right rear door.

[0019] Therefore, when the storage space of the vehicle compartment needs to be expanded, the rear cabin top plate and the rear cabin bottom plate are extended out of the vehicle compartment top plate and the vehicle compartment bottom plate, and the rear cabin left auxiliary back door and the rear cabin right auxiliary back door are respectively unfolded from the left back door and the right back door. The rear cabin top plate, the rear cabin bottom plate, the left back door, the right back door, the rear cabin left auxiliary back door and the rear cabin right auxiliary back door are connected to each other to form a rear cabin protruding from the rear of the vehicle compartment, which expands the storage space of the vehicle, meets the user's greater storage needs, and improves the user's experience.

[0020] When the rear cabin does not need to be expanded, the rear cabin top plate and the rear cabin bottom plate are retracted into the cabin top plate and the cabin bottom plate respectively, and then the rear cabin left auxiliary rear door and the rear cabin right auxiliary rear door are folded into the left rear door and the right rear door respectively, and then the left rear door and the right rear door are closed to close the cabin, which is convenient for folding and storing the rear cabin. When the rear cabin is in the storage state, the rear cabin top plate, the rear cabin bottom plate, the rear cabin left auxiliary rear door and the rear cabin right auxiliary rear door of the rear cabin do not occupy the internal space of the cabin, do not affect the original space and use of the cabin, and provide users with a higher passenger space utilization rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 A structural front view provided for an embodiment of the present application;

[0023] Figure 2 A top view of the structure provided in the embodiment of the present application;

[0024] Figure 3 A rear view of the structure provided for an embodiment of the present application.

[0025] Reference numerals:

[0026] 10. Carriage; 11. Carriage roof; 12. Carriage floor; 13. Carriage left side panel; 14. Carriage right side panel; 15. Left rear door; 16. Right rear door; 17. Controller; 18. Wiring harness;

[0027] 20. Rear cabin; 21. Rear cabin top plate; 22. Rear cabin bottom plate; 23. Left auxiliary rear door of rear cabin; 24. Right auxiliary rear door of rear cabin; 25. Slide rail; 26. First hinge; 27. First driving mechanism; 28. Second driving mechanism. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0029] The embodiment of the present application provides a vehicle with an expandable rear cabin space, which can solve the problem in the related art that the vehicle's article loading space is limited and difficult to meet the user's needs.

[0030] See also Figures 1 to 3 As shown, an embodiment of the present application provides a vehicle with expandable rear cabin space, comprising:

[0031] The carriage 10 includes a carriage roof 11, a carriage floor 12, a carriage left side panel 13, and a carriage right side panel 14. The carriage roof 11, the carriage floor 12, the carriage left side panel 13, and the carriage right side panel 14 are fixedly connected end to end. A left rear door 15 is hinged on the carriage left side panel 13, and a right rear door 16 is hinged on the carriage right side panel 14. The left rear door 15 and the right rear door 16 are in a double-door structure for opening or closing the carriage 10.

[0032] The rear cabin 20 includes a rear cabin top plate 21 slidably connected to the compartment top plate 11, a rear cabin bottom plate 22 slidably connected to the compartment bottom plate 12, a rear cabin left auxiliary rear door 23 hinged to the left rear door 15, and a rear cabin right auxiliary rear door 24 hinged to the right rear door 16. The rear cabin top plate 21 is slidably connected to the compartment top plate 11 and can be extended or retracted into the compartment top plate 11, and the rear cabin bottom plate 22 is slidably connected to the compartment bottom plate 12 and can be extended or retracted into the compartment bottom plate 12.

[0033] The left auxiliary rear door 23 of the rear cabin is hinged on the left rear door 15 and can be folded or unfolded on the left rear door 15, and the right auxiliary rear door 24 of the rear cabin is hinged on the right rear door 16 and can be folded or unfolded on the right rear door 16. When the rear cabin top plate 21 extends out of the vehicle compartment top plate 11, the rear cabin bottom plate 22 extends out of the vehicle compartment bottom plate 12, the left auxiliary rear door 23 of the rear cabin unfolds the left rear door 15, and the right auxiliary rear door 24 of the rear cabin unfolds the right rear door 16, the rear cabin 20 is formed together.

[0034] In the embodiment of the present application, when it is necessary to expand and increase the storage space of the compartment 10, the rear compartment top plate 21 and the rear compartment bottom plate 22 are extended out of the compartment top plate 11 and the compartment bottom plate 12, and the rear compartment left auxiliary back door 23 and the rear compartment right auxiliary back door 24 are respectively unfolded from the left back door 15 and the right back door 16. The rear compartment top plate 21, the rear compartment bottom plate 22, the left back door 15, the right back door 16, the rear compartment left auxiliary back door 23 and the rear compartment right auxiliary back door 24 are connected to each other to form a rear compartment 20 protruding from the rear of the compartment 10, which expands the storage space of the vehicle, meets the user's greater storage needs, and improves the user's use experience.

[0035] In the embodiment of the present application, when there is no need to expand the rear cabin 20, the rear cabin top plate 21 and the rear cabin bottom plate 22 are retracted into the compartment top plate 11 and the compartment bottom plate 12 respectively, and then the rear cabin left auxiliary back door 23 and the rear cabin right auxiliary back door 24 are folded into the left back door 15 and the right back door 16 respectively, and then the left back door 15 and the right back door 16 are closed to close the compartment 10, so as to facilitate the folding and storage of the rear cabin 20. When the rear cabin 20 is in the storage state, the rear cabin top plate 21, the rear cabin bottom plate 22, the rear cabin left auxiliary back door 23 and the rear cabin right auxiliary back door 24 of the rear cabin 20 do not occupy the internal space of the compartment 10, do not affect the original space and use of the compartment 10, and provide users with a higher passenger space utilization rate.

[0036] In some alternative embodiments: See Figures 1 to 3As shown, the embodiment of the present application provides a vehicle with an expandable rear cabin space, wherein the vehicle's cabin roof 11, cabin floor 12, cabin left side panel 13, and cabin right side panel 14 are fixedly connected to each other to form a compartment with a rectangular cross-section and an opening at the rear. The rear cabin roof 21, rear cabin floor 22, left back door 15, right back door 16, rear cabin left back door 23, and rear cabin right back door 24 are connected to each other to form a compartment with a rectangular cross-section and an opening at the front, and the compartment is connected to the cabin.

[0037] The embodiment of the present application only adds a rear cabin top plate 21, a rear cabin bottom plate 22, a rear cabin left auxiliary rear door 23 and a rear cabin right auxiliary rear door 24 on the basis of the original vehicle, and then uses the vehicle's original left rear door 15 and right rear door 16 to form a cabin with a rectangular cross-section and an opening at the front, and the cabin is interconnected with the compartment to increase the space of the original compartment of the vehicle, which is beneficial to the expanded cabin space to add rear footsteps to enter the vehicle, add seat arrangements, camping equipment, transport goods and other functions.

[0038] In some alternative embodiments: See Figures 1 to 3 As shown, the embodiment of the present application provides a vehicle with an expandable rear cabin space, wherein an upper chamber with an opening facing backward and used to extend or retract the rear cabin top plate 21 is provided in the vehicle compartment top plate 11. The rear cabin top plate 21 is located in the upper chamber and is slidably connected to the vehicle compartment top plate 11 through a slide rail 25, and a first driving mechanism 27 is provided in the upper chamber to drive the rear cabin top plate 21 to move along the slide rail 25. The first driving mechanism 27 is preferably, but not limited to, a linear motion mechanism such as an electric cylinder, a linear module, a gear rack, etc.

[0039] The height of the top edge of the left and right rear doors 15 and 16 is higher than the upper chamber of the compartment roof 11. When the left and right rear doors 15 and 16 close the compartment 10, the left and right rear doors 15 and 16 cover and block the upper chamber. When the rear compartment 20 is in the storage state, the rear compartment roof 21 is retracted into the upper chamber, and the left and right rear doors 15 and 16 are used to cover and block the upper chamber, so that the rear compartment roof 21 is in a closed environment, and the upper chamber is covered and hidden, thereby improving the appearance of the vehicle.

[0040] In some alternative embodiments: See Figures 1 to 3 As shown, the embodiment of the present application provides a vehicle with an expandable rear cabin space, wherein a lower chamber with an opening facing backward and used to extend or retract the rear cabin floor 22 is provided in the vehicle compartment floor 12. The rear cabin floor 22 is located in the lower chamber and is slidably connected to the vehicle compartment floor 12 through a slide rail 25, and a second driving mechanism 28 is provided in the lower chamber to drive the vehicle compartment floor 12 to move along the slide rail 25. The second driving mechanism 28 is preferably, but not limited to, a linear motion mechanism such as an electric cylinder, a linear module, a gear rack, etc.

[0041] The height of the bottom edge of the left and right rear doors 15 and 16 is lower than the lower chamber of the vehicle compartment floor 12. When the left and right rear doors 15 and 16 close the vehicle compartment 10, the left and right rear doors 15 and 16 cover and block the lower chamber. When the rear compartment 20 is in the storage state, the rear compartment floor 22 is retracted into the lower chamber, and the left and right rear doors 15 and 16 are used to cover and block the lower chamber, so that the rear compartment floor 22 is in a closed environment, and the lower chamber is covered and hidden, thereby improving the appearance of the vehicle.

[0042] In some alternative embodiments: See Figures 1 to 3 As shown, the embodiment of the present application provides a vehicle with an expandable rear cabin space, and the inner walls of the left and right rear doors 15 and 16 of the vehicle are provided with horizontally arranged slide grooves (not shown in the figure) for slidingly connecting the rear cabin top plate 21 and the rear cabin bottom plate 22. Both side walls of the rear cabin top plate 21 and the rear cabin bottom plate 22 are fixedly connected with sliders (not shown in the figure) that are adapted to the slide grooves and slidably connected to each other, and the cross section of the slide groove is a "C"-shaped structure, and the cross section of the slider is an "I"-shaped structure.

[0043] In order to make the rear cabin top plate 21 and the rear cabin bottom plate 22 reliably connected to the left back door 15 and the right back door 16 respectively to form a stable structure, the embodiment of the present application has sliding grooves arranged in a horizontal direction and used for slidingly connecting the rear cabin top plate 21 and the rear cabin bottom plate 22 on the inner walls of the left back door 15 and the right back door 16, and sliding blocks adapted to the sliding grooves and slidably connected to each other are fixedly connected to the two side walls of the rear cabin top plate 21 and the rear cabin bottom plate 22.

[0044] After the left back door 15 and the right back door 16 are opened, the left and right back doors 23 and 24 of the rear cabin are unfolded from the left back door 15 and the right back door 16, and the first driving mechanism 27 and the second driving mechanism 28 are used to drive the rear cabin top plate 21 and the rear cabin bottom plate 22 to extend. During the extension of the rear cabin top plate 21 and the rear cabin bottom plate 22, the slider slides into the slide slot, so that the rear cabin top plate 21 and the rear cabin bottom plate 22 are connected between the left back door 15 and the right back door 16, and the left back door 15 and the right back door 16 are in a mutually parallel state.

[0045] In some alternative embodiments: See Figures 1 to 3 As shown, the embodiment of the present application provides a vehicle with an expandable rear cabin space, in which the left auxiliary rear door 23 of the rear cabin is rotatably connected to the left rear door 15 via a first hinge 26. When the left auxiliary rear door 23 of the rear cabin rotates 90° in the forward direction around the first hinge 26, the left auxiliary rear door 23 of the rear cabin is flipped to the outside of the left rear door 15 and is in an unfolded state. When the left auxiliary rear door 23 of the rear cabin rotates 90° in the reverse direction around the first hinge 26, the left auxiliary rear door 23 of the rear cabin is flipped to the inside of the left rear door 15, and the left auxiliary rear door 23 of the rear cabin is attached to the left rear door 15 and is in a folded state.

[0046] The rear cabin right auxiliary back door 24 is rotatably connected to the right back door 16 via a second hinge (not shown). When the rear cabin right auxiliary back door 24 rotates 90° in the forward direction around the second hinge, the rear cabin right auxiliary back door 24 flips to the outside of the right back door 16 and is in an unfolded state. When the rear cabin right auxiliary back door 24 rotates 90° in the reverse direction around the second hinge, the rear cabin right auxiliary back door 24 flips to the inside of the right back door 16, and the rear cabin right auxiliary back door 24 and the right back door 16 are attached to each other and are in a folded state.

[0047] In some alternative embodiments: See Figures 1 to 3 As shown, the embodiment of the present application provides a vehicle with an expandable rear cabin space, wherein the left and right rear cabin auxiliary back doors 23 and 24 of the vehicle are both located between the rear cabin top plate 21 and the rear cabin bottom plate 22. The upper and lower ends of the left rear cabin auxiliary back door 23 are connected to the rear cabin top plate 21 and the rear cabin bottom plate 22 through electromagnetic locks, and the upper and lower ends of the right rear cabin auxiliary back door 24 are connected to the rear cabin top plate 21 and the rear cabin bottom plate 22 through electromagnetic locks, and the left and right rear cabin auxiliary back doors 23 and 24 are connected through mechanical door locks.

[0048] The left and right rear back doors 23 and 24 of the rear cabin are both located between the top plate 21 and the bottom plate 22 of the rear cabin, and are fixedly connected to each other by electromagnetic locks. The left and right rear back doors 23 and 24 of the rear cabin are used to vertically connect and support the top plate 21 and the bottom plate 22 of the rear cabin. When the electromagnetic lock is energized, the electromagnetic lock generates a magnetic field to lock and fix the top plate 21 and the bottom plate 22 of the rear cabin to the left and right rear back doors 23 and 24 of the rear cabin, thereby improving the overall structural stability of the rear cabin 20.

[0049] In some alternative embodiments: See Figures 1 to 3 As shown, an embodiment of the present application provides a vehicle with an expandable rear cabin space, wherein the rear cabin top plate 21, the rear cabin bottom plate 22, the left rear door 15, the right rear door 16, the left rear cabin auxiliary rear door 23 and the right rear cabin auxiliary rear door 24 of the vehicle are all provided with waterproof rubber strips (not shown in the figure) at the overlapping parts where the rear cabin top plate 21, the rear cabin bottom plate 22, the left rear door 15, the right rear door 16, the left rear cabin auxiliary rear door 23 and the right rear cabin auxiliary rear door 24 are connected to each other, and the top surface of the rear cabin top plate 21 is provided with a plurality of drainage guide grooves (not shown in the figure) arranged at intervals from each other, and the drainage guide grooves extend along the length direction of the vehicle body 10.

[0050] In the embodiment of the present application, waterproof rubber strips are provided at the joints where the vehicle's rear cabin roof 21, rear cabin bottom 22, left back door 15, right back door 16, rear cabin left sub-back door 23 and rear cabin right sub-back door 24 are connected to each other. The waterproof rubber strips not only have the function of sealing and waterproofing, but also can play the role of vibration reduction and noise reduction. The top surface of the rear cabin roof 21 is provided with a plurality of drainage guide grooves arranged at intervals from each other, and the drainage guide grooves are used to quickly discharge rainwater from the rear cabin roof 21, and prevent rainwater from flowing into the interior of the rear cabin 20 through the connection between the rear cabin roof 21 and the left back door 15 and the right back door 16.

[0051] In addition, the embodiment of the present application is further provided with a controller 17 for controlling the electromagnetic lock, the first drive mechanism 27, and the second drive mechanism 28, and the controller 17 is connected to the electromagnetic lock, the first drive mechanism 27, and the second drive mechanism 28 through a harness 18. The controller 17 is also connected to a car instrument, on which a touch screen or a control switch for controlling the action of the electromagnetic lock, the first drive mechanism 27, and the second drive mechanism 28 is provided.

[0052] How it works

[0053] An embodiment of the present application provides a vehicle with an expandable rear cabin space. Since the vehicle with an expandable rear cabin space of the present application is provided with a carriage 10, the carriage 10 includes a carriage roof 11, a carriage floor 12, a carriage left side panel 13, and a carriage right side panel 14, a left tailgate 15 is hinged on the carriage left side panel 13, and a right tailgate 16 is hinged on the carriage right side panel 14; a rear cabin 20, the rear cabin 20 includes a rear cabin roof 21 slidably connected to the carriage roof 11, a rear cabin bottom plate 22 slidably connected to the carriage floor 12, a rear cabin left auxiliary tailgate 23 hinged on the left tailgate 15, and a rear cabin right auxiliary tailgate 24 hinged on the right tailgate 16.

[0054] Therefore, when the storage space of the compartment 10 needs to be expanded, the rear cabin top plate 21 and the rear cabin bottom plate 22 are extended out of the compartment top plate 11 and the compartment bottom plate 12, and the rear cabin left auxiliary back door 23 and the rear cabin right auxiliary back door 24 are respectively unfolded from the left back door 15 and the right back door 16. The rear cabin top plate 21, the rear cabin bottom plate 22, the left back door 15, the right back door 16, the rear cabin left auxiliary back door 23 and the rear cabin right auxiliary back door 24 are connected to each other to form a rear cabin 20 protruding from the rear of the compartment 10, which expands the storage space of the vehicle, meets the user's greater storage needs, and improves the user's use experience.

[0055] In the present application, when there is no need to expand the rear cabin 20, the rear cabin top plate 21 and the rear cabin bottom plate 22 are retracted into the compartment top plate 11 and the compartment bottom plate 12 respectively, and then the rear cabin left auxiliary back door 23 and the rear cabin right auxiliary back door 24 are folded into the left back door 15 and the right back door 16 respectively, and then the left back door 15 and the right back door 16 are closed to close the compartment 10, so as to facilitate the folding and storage of the rear cabin 20. When the rear cabin 20 is in the storage state, the rear cabin top plate 21, the rear cabin bottom plate 22, the rear cabin left auxiliary back door 23 and the rear cabin right auxiliary back door 24 of the rear cabin 20 do not occupy the internal space of the compartment 10, do not affect the original space and use of the compartment 10, and provide users with a higher passenger space utilization rate.

[0056] In the description of the present application, it should be noted that the terms "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0057] It should be noted that, in this application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0058] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. A vehicle with expandable rear cabin space, characterized in that: include: A carriage (10), the carriage (10) comprising a carriage roof (11), a carriage floor (12), a carriage left side panel (13), and a carriage right side panel (14), the carriage left side panel (13) being hingedly connected to a left rear door (15), and the carriage right side panel (14) being hingedly connected to a right rear door (16); A rear cabin (20), the rear cabin (20) comprising a rear cabin top plate (21) slidably connected to the vehicle compartment top plate (11), a rear cabin bottom plate (22) slidably connected to the vehicle compartment bottom plate (12), a rear cabin left auxiliary rear cabin door (23) hinged to the left rear door (15), and a rear cabin right auxiliary rear cabin door (24) hinged to the right rear door (16).

2. A vehicle with expandable rear cabin space as claimed in claim 1, characterized in that: The compartment roof (11), the compartment floor (12), the compartment left side panel (13), and the compartment right side panel (14) are fixedly connected to each other to form a compartment with a rectangular cross-section and an opening at the rear; the rear cabin roof (21), the rear cabin floor (22), the left back door (15), the right back door (16), the rear cabin left auxiliary back door (23), and the rear cabin right auxiliary back door (24) are connected to each other to form a cabin with a rectangular cross-section and an opening at the front, and the cabin is communicated with the compartment.

3. A vehicle with expandable rear cabin space as claimed in claim 1 or 2, characterized in that: An upper chamber with an opening facing backwards and used for extending or retracting the rear cabin top plate (21) is provided in the carriage top plate (11); the rear cabin top plate (21) is located in the upper chamber and is slidably connected to the carriage top plate (11) via a slide rail (25); and a first driving mechanism (27) is provided in the upper chamber for driving the rear cabin top plate (21) to move along the direction of the slide rail (25).

4. A vehicle with expandable rear cabin space as claimed in claim 3, characterized in that: The top edges of the left rear door (15) and the right rear door (16) are higher than the upper chamber of the compartment roof (11); when the left rear door (15) and the right rear door (16) close the compartment (10), the left rear door (15) and the right rear door (16) cover and block the upper chamber.

5. A vehicle with expandable rear cabin space as claimed in claim 1 or 2, characterized in that: The vehicle compartment floor (12) is provided with a lower chamber with an opening facing backwards and used for extending or retracting the rear compartment floor (22); the rear compartment floor (22) is located in the lower chamber and is slidably connected to the vehicle compartment floor (12) via a slide rail (25); and the lower chamber is provided with a second driving mechanism (28) for driving the rear compartment floor (22) to move along the direction of the slide rail (25).

6. The vehicle with expandable rear cabin space as claimed in claim 5, characterized in that: The bottom edges of the left rear door (15) and the right rear door (16) are at a height lower than the lower chamber of the vehicle compartment floor (12); when the left rear door (15) and the right rear door (16) close the vehicle compartment (10), the left rear door (15) and the right rear door (16) cover and block the lower chamber.

7. A vehicle with expandable rear cabin space as claimed in claim 1 or 2, characterized in that: The inner walls of the left back door (15) and the right back door (16) are both provided with sliding grooves arranged in a horizontal direction and used for slidably connecting the rear cabin top plate (21) and the rear cabin bottom plate (22); the two side walls of the rear cabin top plate (21) and the rear cabin bottom plate (22) are both fixedly connected with sliding blocks adapted to the sliding grooves and slidably connected to each other; the cross section of the sliding grooves is a "C"-shaped structure, and the cross section of the sliding blocks is an "I"-shaped structure.

8. A vehicle with expandable rear cabin space as claimed in claim 1 or 2, characterized in that: The left auxiliary rear door (23) of the rear cabin is rotatably connected to the left rear door (15) via a first hinge (26); when the left auxiliary rear door (23) of the rear cabin rotates forwardly around the first hinge (26), the left auxiliary rear door (23) of the rear cabin is flipped to the outside of the left rear door (15) and is in an unfolded state; when the left auxiliary rear door (23) of the rear cabin rotates backwardly around the first hinge (26), the left auxiliary rear door (23) of the rear cabin is flipped to the inside of the left rear door (15) and is in a folded state; The rear cabin right auxiliary rear door (24) is rotatably connected to the right rear door (16) via a second hinge. When the rear cabin right auxiliary rear door (24) rotates forwardly around the second hinge, the rear cabin right auxiliary rear door (24) flips to the outside of the right rear door (16) and is in an unfolded state. When the rear cabin right auxiliary rear door (24) rotates reversely around the second hinge, the rear cabin right auxiliary rear door (24) flips to the inside of the right rear door (16) and is in a folded state.

9. A vehicle with expandable rear cabin space as claimed in claim 1 or 2, characterized in that: The left and right rear cabin auxiliary back door (23) and the right rear cabin auxiliary back door (24) are both located between the rear cabin top plate (21) and the rear cabin bottom plate (22); the upper and lower ends of the left and right rear cabin auxiliary back door (23) are both connected to the rear cabin top plate (21) and the rear cabin bottom plate (22) through electromagnetic locks; the upper and lower ends of the right and right rear cabin auxiliary back door (24) are both connected to the rear cabin top plate (21) and the rear cabin bottom plate (22) through electromagnetic locks; and the left and right rear cabin auxiliary back door (23) and the right rear cabin auxiliary back door (24) are connected through a mechanical door lock.

10. A vehicle with expandable rear cabin space as claimed in claim 1 or 2, characterized in that: Waterproof rubber strips are provided at the overlapping places where the rear cabin top plate (21), the rear cabin bottom plate (22), the left back door (15), the right back door (16), the left rear cabin auxiliary back door (23) and the right rear cabin auxiliary back door (24) are connected to each other, and the top surface of the rear cabin top plate (21) is provided with a plurality of drainage guide grooves arranged at intervals from each other, and the drainage guide grooves extend along the length direction of the vehicle compartment (10).

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