Automobile space expansion mechanism

Abstract

To provide a space extension mechanism of an automobile capable of effectively extending an internal space of a passenger compartment.SOLUTION: A space extension mechanism of an automobile includes a space extension assembly and a rolling connection assembly. The space extension assembly is attached to a rear part of a passenger compartment via the rolling connection assembly. When a back door of the passenger compartment is opened, the space extension assembly extends rearward and downward by pulling and reverse operation to form a housing structure, and an opening side of the housing structure faces the passenger compartment of an automobile body and communicates with an internal space of the passenger compartment.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to the field of automobile components, and more particularly to a space expansion mechanism for an automobile. [Background technology]

[0002] According to the industry standard "Garage Building Design Standards" JGJ100-98, Chapter 4, Article 1.3, Table 4.1.3 "Minimum indoor ceiling height within garages" contains detailed regulations regarding the height of indoor garages, specifically as follows: The minimum net height for indoor garages for miniature cars and small cars is 2.2 meters. The minimum net height for an indoor garage for a light vehicle is 2.8 metres. The minimum net height for indoor garages for medium-sized, large and articulated buses is 3.4 metres. The minimum net height for indoor garages for medium-sized, large and articulated trucks is 4.2 metres. Therefore, according to the standard regulations, the height of garages in buildings such as high-rise buildings generally needs to be at least 2.2 meters net height.

[0003] Vehicle height is defined as the distance from the ground to the highest point of the vehicle. This refers to the highest point above the passenger compartment, but does not include the length of the roof antenna. A Baidu search reveals that family cars (sedans) range in length from 3800mm to 4300mm, width from 1600mm to 1800mm, and height from 1400mm to 1600mm, while SUVs generally range in height from 1600mm to 2400mm. The heights of various classes of SUVs are as follows: 1) small SUVs are generally 1720mm, 2) compact SUVs are generally 1950mm, 3) mid-size SUVs are generally 2000mm, 4) large SUVs are 2300mm, and the largest full-size SUVs are 2400mm.

[0004] For most families, the family car they choose is typically a standard sedan or a small or medium-sized SUV. While these types of vehicles offer the advantage of being easy to drive into a garage and convenient to park, they are primarily used to transport people or small amounts of goods. When used for sightseeing or overnight stays, however, the limited interior space presents a number of drawbacks. For example, they lack on-board restrooms (only large recreational vehicles have them), limiting tourist parking to campgrounds and parking lots with restrooms, significantly reducing the convenience of overnight parking. This is especially true when traveling through vast, uninhabited areas, on long commutes, or in special circumstances where a temporary restroom is needed. A standard family car simply cannot meet these needs.

[0005] Therefore, how to develop a space expansion mechanism for automobiles and assemble it into an ordinary automobile to expand the interior space of the automobile, provide a stable privacy space, and meet the needs of overnight travel, personal toilets, bathing, etc. has become a technical problem that must be solved as soon as possible by those skilled in the art. Summary of the Invention

[0006] The present invention aims to provide a space expansion mechanism for automobiles to solve the problems of traditional family cars, such as limited space and inconvenience for travel and accommodation. To solve the above technical problems, the present invention uses the following technical solutions:

[0007] The space expansion mechanism for an automobile of the present invention comprises a space expansion assembly and a rolling connection assembly, and the space expansion assembly is movably attached to the rear of the passenger compartment of the automobile body via the rolling connection assembly. When the back door of the passenger compartment is opened in use, the space expansion assembly is expanded rearward and downward by pulling and flipping operations to form a housing structure, and the opening side of the housing structure faces the passenger compartment of the automobile body and communicates with the interior space of the passenger compartment. Preferably, the space expansion assembly is slidably connected to both the left and right sides of the rear of the passenger compartment of the vehicle body or to an upper portion of the rear of the passenger compartment.

[0008] Preferably, the space expansion assembly is connected to both the left and right sides of the rear of the passenger compartment of the vehicle body via a slide rail connection assembly or a guide sliding positioning plate, the slide rail connection assembly includes a side guide chute and a side slide rail, the slide rail is slidably connected to the side guide chute, the side guide chute is attached to both the left and right sides of the rear of the passenger compartment of the vehicle body, the side slide rail is connected to the space expansion assembly, the guide sliding positioning plate is attached to both the left and right sides of the rear of the passenger compartment of the vehicle body, and the space expansion assembly is slidably connected within the chute of the guide sliding positioning plate. Preferably, the space expansion assembly includes three parts: a side plate assembly, a back plate assembly, and a bottom plate, which are connected to each other;

[0009] the side plate assembly includes a main side plate, an upper side plate, and a lower side plate, the upper side plate and the lower side plate being telescopically connected to both ends of the main side plate, and the side slide rail being connected to an outer surface of the main side plate;

[0010] The back plate assembly comprises an upper back plate, a main back plate and a lower back plate arranged from top to bottom, the main back plate, the upper back plate and the lower back plate being reversibly connected to the outer edges of the main side plate, the upper side plate and the lower side plate, respectively, and the bottom plate being connected to the bottom edge of the lower side plate.

[0011] Preferably, the bottom plate adopts a single-plate structure or a symmetrical double-plate structure. In the case of a single-plate structure, both ends of the bottom plate are connected to the bottom edges of the two lower plates via screws. In the case of a double-plate structure, the bottom plate is reversibly connected to the bottom edges of the lower plates via a third rotating connecting member.

[0012] Preferably, the main back panel is hingedly connected to the outer edge of the main side panel via a second rotating connecting member, and the upper and lower back panels are both connected to the outer edges of the upper and lower side panels via a first rotating connecting member, and the upper and lower back panels are folded together adjacent to the upper and lower side panels after being inverted, and the main back panel is parallel to the main side panels after being inverted, with a storage gap disposed in the middle, and the thickness of the storage gap is equal to the thickness of the upper, lower, upper back panel and lower back panel after being folded.

[0013] Preferably, clearance steps are provided on the inner surfaces of both the upper and lower ends of the main side plate, the depth of the clearance steps being equal to or greater than the height of the upper and lower side plates, and the height of the upper and lower back plates being equal to or less than the maximum height of the upper and lower side plates.

[0014] Preferably, the space expansion assembly is connected to the upper part of the rear compartment of the vehicle body via a lifting guide sliding assembly, and the lifting guide sliding assembly includes an upper guide chute and an upper guide sliding plate that are connected and slidably integrated, the upper guide chute being attached to the upper part of the rear compartment of the vehicle body, and the upper guide sliding plate being attached to the space expansion assembly.

[0015] Preferably, during lifting, the space-expanding assembly is installed on a lifting-folding assembly, which includes an upper connecting plate, a folding side plate assembly, and a folding back plate assembly, the upper surface of the upper connecting plate is slidably connected to the upper guide chute via the upper guide sliding plate, two groups of folding side plate assemblies are symmetrically arranged and connected to the left and right sides of the upper connecting plate, and the folding back plate assembly is reversibly connected to the folding side plate assembly.

[0016] Preferably, the folding side panel assembly comprises an upper folding side panel, a middle folding side panel and a lower folding side panel that are folded sequentially, one side edge of the upper folding side panel is connected to a side edge of the upper connecting panel, and the mutually connected edges of the upper folding side panel, the middle folding side panel and the lower folding side panel are integrally connected via a 180° hinge structure or a flexible connecting member;

[0017] the folding back panel assembly comprises an upper folding back panel, a middle folding back panel and a lower folding back panel, the upper folding back panel, the middle folding back panel and the lower folding back panel being connected to the outer edges of the upper folding side panel, the middle folding side panel and the lower folding side panel respectively via a 90° hinge structure or a flexible connecting member;

[0018] The bottom plate further comprises a double-plate structure, and the bottom plate is reversibly connected to the bottom edge of the lower folding side plate via a 90° hinge structure or a flexible connecting member.

[0019] Preferably, the space expansion assembly is designed as a hinged inversion assembly, and the hinged inversion assembly is reversibly connected to the self-adaptive positioning structure through a hinge, and the hinged inversion assembly includes an inverted side plate assembly, an inverted back plate assembly and an inverted bottom plate, and the inverted side plate assembly includes a main positioning plate and a lower inverted side plate, the inner side of the main positioning plate is hingedly connected to the self-adaptive positioning structure, and a side intermediate transition plate is hingedly connected between the main positioning plate and the lower inverted side plate, and two adjacent sides of the three are integrally connected through a 90° hinge member;

[0020] The inverting back plate assembly includes a rear upper inverting plate and a rear lower inverting plate, the rear upper inverting plate is hingedly connected to the outer vertical side of the main positioning plate, the rear lower inverting plate is hingedly connected to the outer vertical side of the lower inverting side plate, a rear middle transition plate is hingedly connected to the bottom side of the rear upper inverting plate, and the inverting bottom plate is hingedly connected to the bottom side of the rear lower inverting plate.

[0021] Preferably, the self-adaptive positioning structure includes a telescopic rod, the bottom of which is positioned and connected to the bottom of the vehicle compartment via a bottom connecting plate, the positioning hole of the bottom connecting plate overlapping the positioning hole of the vehicle seat, the top of the telescopic rod is connected to an upper positioning plate, and a self-adaptive block is connected to the upper surface of the upper positioning plate, the self-adaptive block is made of a flexible material, and an assembly positioning plate is connected to the outer side of the telescopic rod, the assembly positioning plate has a plurality of positioning holes, and the inner edge of the main positioning plate is hingedly connected to the assembly positioning plate.

[0022] Preferably, the space expansion assembly is designed as a roof folding expansion assembly, and the roof folding expansion assembly includes an upper assembly and a lower assembly, the upper assembly includes an upper plate and an upper back plate that are hinged together, and the left side of the upper plate is hinged to the rear door of the vehicle compartment, and the lower assembly includes a lower plate, a lower back plate and a bottom plate, and the three plates are hinged together at corresponding sides depending on the inverted position when opened, and the lower plate and the upper plate are either hinged together or connected so as to be removable, and are stacked when not unfolded and form a housing structure after unfolding.

[0023] Preferably, the space expansion assembly is designed as a Z-shaped roof folding assembly, and the Z-shaped roof folding assembly includes an upper folding assembly, a lower folding assembly, and a straight bottom plate. The upper folding assembly includes an upper plate and an upper back plate that are integrally hinged, and the left side of the upper plate is hinged to the rear door of the vehicle. The lower folding assembly includes a lower plate and a lower back plate that are integrally hinged, and the left and right sides of the two symmetrical lower plates are connected to the straight bottom plate. When the three plates are opened, corresponding sides are integrally hinged according to the inverted position. One adjacent edge of the lower plate and the upper plate is integrally hinged. When not unfolded, it is in a stacked state, and during unfolding it presents a Z-shape, and when fully unfolded it becomes a housing structure.

[0024] Preferably, the space expansion assembly is designed as a sliding inverted assembly, and includes an inverted drive assembly, an inverted expansion assembly, and a support roller, one end of the inverted drive assembly is connected to both the left and right sides of the rear of the passenger compartment of the automobile body, the other end of the inverted drive assembly is hingedly connected to the side wall of the inverted expansion assembly, the support roller is attached to the rear of the passenger compartment of the automobile body and is located below the inverted expansion assembly, and when the rear door of the passenger compartment is opened, the inverted drive assembly is activated and expanded, driving the inverted expansion assembly to slide backward and invert, and turn vertical, and the plates folded on the inverted expansion assembly are expanded sequentially to form a housing structure. Compared with the prior art, the beneficial technical effects of the present invention are as follows:

[0025] The space expansion mechanism for an automobile of the present invention comprises a space expansion assembly and a rolling connection assembly. The space expansion assembly is movably attached to the rear of the passenger compartment of the automobile body via the rolling connection assembly. The space expansion assembly is connected to both the left and right sides of the rear of the passenger compartment of the automobile body via a slide rail connection assembly or a guide slide positioning plate, or is connected to the upper part of the rear of the passenger compartment of the automobile body via a lifting guide slide assembly. In use, when the rear door of the passenger compartment is opened, the space expansion assembly is expanded by pulling and flipping to form a housing structure, and the open side of the housing structure faces the passenger compartment of the automobile body and communicates with the interior space of the passenger compartment.

[0026] The present invention is an ingeniously devised invention having a compact and rational structure. The space expansion assembly is folded and stored rationally inside the vehicle cabin, and is located at the rear of the vehicle cabin, so that it does not occupy passenger space. During travel, the vehicle can be smoothly driven to a parking lot. When the rear door of the vehicle cabin is opened, the space expansion assembly expands, effectively expanding the interior space of the vehicle cabin, providing excellent stability and privacy, and meeting needs such as nighttime travel, temporary toileting, and bathing, thereby improving the convenience of personnel movement. [Brief explanation of the drawings]

[0027] Next, the present invention will be further described in conjunction with the drawings. [Figure 1] FIG. 1 is a schematic diagram (embodiment 1) of a vehicle space expansion mechanism according to the present invention in a folded state inside the vehicle. [Figure 2] FIG. 2 is a schematic diagram (Example 1) of a state in the process of expanding the space expansion mechanism for an automobile according to the present invention. [Figure 3] FIG. 3 is a schematic diagram of a space expansion mechanism for an automobile according to the present invention in a fully open state (first embodiment). [Figure 4] FIG. 4 is a front view of the stretch and fold assembly of the present invention. [Figure 5] FIG. 5 is a side view of the stretch and fold assembly of the present invention. [Figure 6] FIG. 6 is a schematic diagram (partially overlapping) of a stretch-fold assembly of the present invention. [Figure 7] FIG. 7 is a schematic view of the vehicle space expansion mechanism according to the present invention in a folded state inside the vehicle (Example 2). [Figure 8] FIG. 8 is a schematic diagram of a state in the process of expanding the space expansion mechanism for an automobile according to the present invention (Embodiment 2). [Figure 9] FIG. 9 is a side view of a stretch and fold assembly according to a second embodiment of the present invention. [Figure 10] FIG. 10 is a schematic view of the vehicle space expansion mechanism according to the present invention in a folded state inside the vehicle (third embodiment). [Figure 11] FIG. 11 is a schematic diagram of a connecting structure of a guide sliding positioning plate according to a third embodiment of the present invention. [Figure 12] FIG. 12 is a schematic view of the vehicle space expansion mechanism according to the present invention in a folded state inside the vehicle (Embodiment 4). [Figure 13] FIG. 13 is a schematic diagram of a state in the process of expanding the space expansion mechanism for an automobile according to the present invention (Embodiment 4). [Figure 14] FIG. 14 is a side view of a lifting and folding assembly according to a fourth embodiment of the present invention. [Figure 15] FIG. 15 is a schematic diagram of the hinge structure of the present invention. [Figure 16] FIG. 16 is a schematic diagram of a usage process in the first embodiment of the present invention. [Figure 17] FIG. 17 is a schematic diagram of a usage process in Example 4 of the present invention. [Figure 18] FIG. 18 is a schematic view of the fifth embodiment of the present invention in a folded state inside the vehicle. [Figure 19] FIG. 19 is a schematic diagram of the half-open state in the fifth embodiment of the present invention. [Figure 20] FIG. 20 is a schematic diagram of the fully open state in the fifth embodiment of the present invention. [Figure 21] FIG. 21 is a schematic diagram of a folding structure of a hinge inversion assembly according to a fifth embodiment of the present invention. [Figure 22] FIG. 22 is a schematic view of the sixth embodiment of the present invention in a folded state inside the vehicle. [Figure 23] FIG. 23 is a schematic diagram of Example 6 of the present invention during the spreading process. [Figure 24] FIG. 24 is a schematic diagram of the sixth embodiment of the present invention in an expanded state. [Figure 25] FIG. 25 is a schematic diagram of the half-open state in the seventh embodiment of the present invention. [Figure 26] FIG. 26 is a schematic view of the rear of the eighth embodiment of the present invention (with the back door of the vehicle compartment open). [Figure 27] FIG. 27 is a side view (stored state) of the eighth embodiment of the present invention. [Figure 28] FIG. 28 is a schematic diagram of the fully open state in the eighth embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0028] In order to make the technical problems, technical solutions and beneficial effects of the present invention clearer, the present invention will be further described in detail below in conjunction with the drawings and examples. It should be understood that the specific examples described herein are only used to illustrate the present invention and are not used to limit the present invention.

[0029] As shown in Figures 1 to 25, the space expansion mechanism for an automobile comprises a space expansion assembly and a rolling connection assembly, and the space expansion assembly is attached to the rear of the passenger compartment of an automobile body 100 via the rolling connection assembly. When using the space expansion mechanism, when a back door 101 of the passenger compartment is opened, the space expansion assembly is expanded rearward and downward by pulling and reversing operations, forming a housing structure, and the opening side of the housing structure faces the passenger compartment of the automobile body 100 and communicates with the interior space of the passenger compartment.

[0030] Specifically, as shown in Figures 18 and 19, the rolling connection assembly uses a self-adaptive positioning structure, which includes a telescopic rod 102, the bottom of which is positioned and connected to the bottom of the vehicle compartment via a bottom connecting plate 103, the positioning holes of which are aligned with the positioning holes of the vehicle seat and synchronously fixed using the positioning bolts of the seat, an upper positioning plate 104 is connected to the top of the telescopic rod 102, and a self-adaptive block is connected to the top surface of the upper positioning plate 104, which is made of a flexible material, preferably sponge, polyurethane, or rubber block, so as to be able to adapt to various roof shapes, and an assembly positioning plate 105 is connected to the outside of the telescopic rod 102, and the assembly positioning plate 105 is provided with a number of positioning holes so as to be used in cooperation with other rolling connection components. In one specific embodiment, the space expansion assembly is slidably connected to both the left and right sides of the rear of the passenger compartment of the automobile body 100 or to the upper part of the rear of the passenger compartment.

[0031] Specifically, the space-expanding assembly is connected to both the left and right sides of the rear cabin of the vehicle body 100 via a slide rail connection assembly 200 or a guide sliding positioning plate 700, the slide rail connection assembly 200 including a side guide chute 201 and a side slide rail 202, the side slide rail 202 being slidably connected to the side guide chute 201, the side guide chute 201 being attached to both the left and right sides of the rear cabin of the vehicle body 100, the side slide rail 202 being connected to the space-expanding assembly, the guide sliding positioning plate 700 being attached to both the left and right sides of the rear cabin of the vehicle body 100, and the space-expanding assembly being slidably connected within the chute of the guide sliding positioning plate 700. Specifically, the side guide chute 201 or the guide sliding positioning plate 700 is directly connected to the extension rod 102 or connected to the assembly positioning plate 105, and the specific connection manner is selected according to the interior space or combination conditions of the vehicle. In the first embodiment, the space expansion assembly is connected to both the left and right sides of the rear of the passenger compartment of the automobile body 100 via a slide rail connection assembly 200 . As shown in FIGS. 1 to 6, the space expansion assembly includes three parts: a side plate assembly 300, a back plate assembly 400, and a bottom plate 500, which are connected to each other;

[0032] The side panel assembly 300 includes a main side panel 301, an upper side panel 302, and a lower side panel 303. The upper side panel 302 and the lower side panel 303 are telescopically connected to both ends of the main side panel 301. The side slide rails 202 are connected to the outer surfaces of the main side panel 301. Specifically, the upper side panel 302 and the lower side panel 303 are connected to the main side panel 301 using a drawer-type slide structure to cooperate with each other and realize up and down pulling operation. At the same time, linear movement can also be realized using automatic driving members such as linear motors and cylinders. The selection of driving members can reduce the labor intensity of manual operation, and the specific connection method can be selected according to actual needs.

[0033] The back plate assembly 400 comprises an upper back plate 402, a main back plate 401 and a lower back plate 403 arranged from top to bottom, the main back plate 401, the upper back plate 402 and the lower back plate 403 are reversibly connected to the outer edges of the main side plate 301, the upper plate 302 and the lower plate 303 respectively, and the bottom plate 500 is connected to the bottom edge of the lower plate 303, specifically, the bottom plate 500 can extend directly down to the ground or be suspended a short distance.

[0034] In addition, to increase the load-bearing capacity of the base plate, support legs 600 may be further installed at the four corners of the base plate 500. Specifically, whether support legs are required is determined based on the actual extension length of the base plate 500. During installation, the support legs 600 are quickly and disassembled and connected to the base plate 500. Positioning grooves are provided on the bottom surface of the base plate 500 at positions where the support legs 600 will fit to enable quick installation. Magnets may also be disposed in the positioning grooves to ensure connection stability. Specifically, the support legs 600 are installed in a height-adjustable structure and include an upper positioning leg and a lower telescopic leg. The upper ends of the telescopic legs are inserted into central positioning holes of the positioning legs and are positioned and locked by vertically arranged positioning pins.

[0035] Specifically, the bottom plate 500 adopts a symmetrical double-plate structure, in which the bottom plate 500 is reversibly connected to the bottom side of the lower plate 303 via a third rotating connecting member 501 .

[0036] The main back panel 401 is hingedly connected to the outer edge of the main side panel 301 via a second rotating connecting member 405, and the upper back panel 402 and the lower back panel 403 are both connected to the outer edges of the upper side panel 302 and the lower side panel 303 via a first rotating connecting member 404. After being inverted, the upper back panel 402 and the lower back panel 403 are folded together adjacent to the upper side panel 302 and the lower side panel 303. After being inverted, the main back panel 401 is parallel to the main side panel 301 and has a storage gap in the middle, and the thickness of the storage gap is the same as the thickness of the upper side panel 302, the lower side panel 303, the upper back panel 402 and the lower back panel 403 after being folded.

[0037] Specifically, the first rotating connecting member 404 and the third rotating connecting member 501 can be selected to have a 0°-90° hinge structure, and the second rotating connecting member 405 can also be a 90° hinge structure, with the connection position only needing to be adjusted to ensure a certain gap (parallel to the main back plate) when stacked, and ensuring the flatness of all the plates when stacked. Alternatively, the first rotating connecting member 404, the second rotating connecting member 405, and the third rotating connecting member 501 can all be replaced with flexible connecting member 908, with the distance between the plates only needing to be adjusted. A combination structure combining a hinge structure with a one-sided flexible connecting member can also be adopted, thereby ensuring the strength and tightness of the connection.

[0038] Specifically, as shown in FIG. 15, the hinge includes two rolling connecting plates and one hinge pin 120, where the first rolling connecting plate 110 and the second rolling connecting plate 130 are arranged crosswise or parallel to each other and attached to the same hinge pin 120, and a position-regulating spring or step is arranged according to need to position the rotation angle. At the same time, the lengths of the first rolling connecting plate 110 and the second rolling connecting plate 130 are different, and are adjusted according to the actual folding state after rotation. If a gap is required, one of the rolling connecting plates can be made longer; if not required, they can be designed to be the same length.

[0039] Clearance steps are provided on the inner surfaces of both the upper and lower ends of the main side plate 301, and the depth of the clearance steps is greater than or equal to the height of the upper side plate 302 and the lower side plate 303, and the height of the upper back plate 402 and the lower back plate 403 is less than the maximum height of the upper side plate 302 and the lower side plate 303. As shown in FIG. 16, the use process of this embodiment is as follows: Step 1, open the back door 101 of the vehicle compartment,

[0040] Step 2: The space expansion assembly slides outward. The main side plate 301 drives all components to slide outward along the side guide chute 201 under the movement of the side slide rail 202. In the initial state, the side plate assembly 300, the back plate assembly 400 and the bottom plate 500 are folded symmetrically into two groups and arranged in the vehicle interior; Step 3: Expanding the space expansion assembly, which mainly includes the following steps: 1) The upper plate 302 and the lower plate 303 are driven by simultaneously extending the folding upper back plate 402 and the folding lower back plate 403 in both the up and down directions. 2) The bottom plate 500 is inverted downwards to a horizontal position. 3) The lower back plate 403 is flipped outward until it is perpendicular to the lower side plate 303; 4) The main back panel 401 is flipped outward until it is perpendicular to the main side panel 301; 5) The lower back plate 402 is flipped outward until it is perpendicular to the lower side plate 302;

[0041] Step 4: Installing the support legs. The bottom corners of the base plate 500 are provided with grooves that fit the support legs. The support legs 600 can be placed directly vertically in the grooves, and then adjusted to the appropriate height and locked, so that the bottom ends of the support legs are stably supported on the ground. Through the above four steps, the space expansion assembly can be expanded, and by performing the reverse operation, the space expansion assembly can be stored. In the second embodiment, the space expansion assembly is connected to both the left and right sides of the rear of the passenger compartment of the automobile body 100 via a slide rail connection assembly 200 .

[0042] As shown in Figures 7 to 9, the overall structure is almost the same as in Example 1, with the difference being the structure of the bottom plate 500, which adopts a single-plate structure, and both ends of the bottom plate 500 are connected to the bottom edges of the two lower plates 303 via screws.

[0043] The operation steps of this embodiment are almost the same as those of embodiment 1, except for the first and second steps of step 3, in which the single-plate bottom plate 500 is extended to a predetermined position together with the lower plate 303, and no secondary inversion process is required.

[0044] As shown in steps 10 to 11 of Example 3, the overall structure is almost the same as that of Example 1, except for the structure of the rolling assembly, in which the space expansion assembly is connected to both the left and right sides of the rear of the passenger compartment of the automobile body 100 via a guide sliding positioning plate 700, and the guide sliding positioning plate 700 is attached to both the left and right sides of the rear of the passenger compartment of the automobile body 100, and the space expansion assembly is slidably connected within the chute of the guide sliding positioning plate 700.

[0045] The operation steps of this embodiment are almost the same as those of the first embodiment, except for step 2, in which the space expansion assembly slides outward. The main side plate 301 slides all components outward along the guide slide positioning plate 700. Specifically, rollers 701 or sliders are connected to both ends of the main side plate 301, which allows for quick sliding, making operation easier and saving time and effort. Example 4, as shown in Figures 12 to 15, has a lifting structure.

[0046] Specifically, the space expansion assembly is connected to the upper part of the rear cabin of the automobile body 100 via a lifting guide sliding assembly 800, and the lifting guide sliding assembly 800 includes an upper guide chute 801 and an upper guide sliding plate 802 that are slidably connected, and the upper guide chute 801 is attached to the upper part of the rear cabin of the automobile body 100, and the upper guide sliding plate 802 is attached to the space expansion assembly.

[0047] When lifting, the space-expanding assembly is installed on a lifting and folding assembly 900, which includes an upper connecting plate 901, a folding side plate assembly, and a folding back plate assembly. The upper surface of the upper connecting plate 901 is slidably connected to the upper guide chute 801 via the upper guide sliding plate 802. Two groups of folding side plate assemblies are symmetrically arranged and connected to the left and right sides of the upper connecting plate 901, and the folding back plate assembly is reversibly connected to the folding side plate assembly.

[0048] The folding side panel assembly includes an upper folding side panel 902, a middle folding side panel 903, and a lower folding side panel 904 that are sequentially folded, one side of the upper folding side panel 902 being connected to a side of the upper connecting panel 901, and the mutually connected edges of the upper folding side panel 902, the middle folding side panel 903, and the lower folding side panel 904 being integrally connected via a 180° hinge structure or a flexible connecting member 908;

[0049] The folding back panel assembly includes an upper folding back panel 905, a middle folding back panel 906, and a lower folding back panel 907, and the upper folding back panel 905, the middle folding back panel 906, and the lower folding back panel 907 are connected to the outer edges of the upper folding side panel 902, the middle folding side panel 903, and the lower folding side panel 904, respectively, via 90° hinge structures or flexible connecting members 908;

[0050] When the upper folding side panel 902, the middle folding side panel 903, the lower folding side panel 904, the upper folding back panel 905, the middle folding back panel 906 and the lower folding back panel 907 are all connected with plates of a certain thickness, it should be noted that the clearance position of the corresponding hinge members must be reserved in advance to ensure flatness after folding. At the same time, corresponding positioning assemblies are installed, and locking members are installed on the adjacent edges of the two upper folding side panels 902, and after overlapping, the locking members on both sides are directly connected to perform positioning and locking. Specifically, the locking member can be an assembly of a group of magnets, snaps or hook-and-loop members.

[0051] Specifically, the folding side panel assembly and the folding back panel assembly are made of flexible material and molded to have a suitable fit gap and width in advance in the inverted folding position to ensure flatness after folding. A cylindrical fabric can be used to reduce the weight of the assembly, making it easy to store and align.

[0052] Furthermore, it includes a base plate 500, which has a double-plate structure and is reversibly connected to the bottom edge of the lower folding side plate 904 via a 90° hinge structure or a flexible connecting member 908. In addition, support legs 600 are further installed at the four corners of the base plate 500, and the support legs 600 are quickly and detachably connected to the base plate 500. Specifically, whether support legs are required can be selected according to the actual extension length of the base plate 500. As shown in FIG. 17, the use process of this embodiment is as follows: Step 1, open the back door 101 of the vehicle compartment,

[0053] Step 2: The lifting and folding assembly 900 slides outward. The upper guide sliding plate 802 on the upper surface of the upper connecting plate 901 slides outward along the sliding plate chute 801 at the top of the vehicle compartment. In the initial state, the lifting and folding assembly 900 is folded together and placed at the top of the vehicle compartment. Step 3, unfolding the lifting and folding assembly 900, mainly includes the following steps: 1) The upper folding side panel 902 is inverted downward by 90° to assume a vertical position; 2) The middle folding side panel 903 is turned down 180° to assume a vertical position; 3) The lower folding side panel 904 is turned down 180° to assume a vertical position; 4) The bottom plate 500 is inverted downward by 90° to assume a horizontal state. 5) The lower folding back panel 907 is perpendicular to the lower folding side panel 904 after being turned outward by 90°; 6) The middle folding back panel 906 turns outward 90° and then becomes perpendicular to the middle folding side panel 903; 7) The upper folding back panel 905 is perpendicular to the upper folding side panel 902 after being flipped outward 90°;

[0054] Step 4: Installing the support legs. The bottom corners of the base plate 500 are provided with grooves that fit the support legs. The support legs 600 can be placed directly vertically in the grooves, and then adjusted to the appropriate height and locked, so that the bottom ends of the support legs are stably supported on the ground.

[0055] Through the above four steps, the lifting and folding assembly 900 (space expanding assembly) can be expanded, and by performing the reverse operation, the lifting and folding assembly 900 can be stored. Example 5, as shown in FIGS. 18 to 21, has a hinge inverted structure.

[0056] The space expansion assembly is designed as a hinge reversal assembly 910, which is reversibly connected to the assembly positioning plate 105 via a hinge, and in the folded state, the two assembly positioning plates 105 are vertically symmetrically arranged and approximately parallel to the rear door 101 of the vehicle compartment.

[0057] Specifically, the hinged inverting assembly 910 includes an inverted side plate assembly, an inverted back plate assembly, and an inverted bottom plate 917. The inverted side plate assembly includes a main positioning plate 911 and a lower inverted side plate 912. The inner side of the main positioning plate 911 is hingedly connected to the assembly positioning plate 105. A side intermediate transition plate 913 is hingedly connected between the main positioning plate 911 and the lower inverted side plate 912. Two adjacent sides of the three are integrally connected via a 90° hinge member. The inverted back plate assembly includes a rear upper inverting plate 914 and a rear lower inverting plate 915. The rear upper inverting plate 914 is hingedly connected to the outer vertical edge of the main positioning plate 911, the rear lower inverting plate 915 is hingedly connected to the outer vertical edge of the lower inverting side plate 912, the rear middle transition plate 916 is hingedly connected to the bottom edge of the rear upper inverting plate 914, and the inverting bottom plate 917 is hingedly connected to the bottom edge of the rear lower inverting plate 915, the width of the rear middle transition plate 916 and the side middle transition plate 913 are the same, and the total thickness of the main positioning plate 911, lower inverting side plate 912, rear upper inverting plate 914, rear lower inverting plate 915 and inverting bottom plate 917 after folding corresponds to the thickness of the side middle transition plate 913. The use process of this example is as follows: Step 1, open the back door 101 of the vehicle compartment,

[0058] Step 2: The two symmetrical hinge reversal assemblies 910 are rotated outward by 90° and spread apart, and under the initial state, the hinge reversal assemblies 910 are folded and positioned at the rear of the vehicle cabin; Step 3, unfolding the hinge inversion assembly 910, mainly includes the following steps:

[0059] 1) The lower inverted side plate 912 and the side intermediate transition plate 913 are synchronously inverted downward by 90°, and the side intermediate transition plate 913 assumes a vertical state. Thereafter, the lower inverted side plate 912 continues to be inverted downward by 90°, and the lower inverted side plate 912 assumes a vertical state.

[0060] 2) The rear upper inverting plate 914 rotates outward by 90° or 270° to be perpendicular to the main positioning plate 911, and the rear middle transition plate 916 at the bottom is inverted downward by 90°, which is then perpendicular to the side middle transition plate 913 after inversion; 3) The rear lower inversion plate 915 is inverted 90° outward and then becomes perpendicular to the lower inversion side plate 912, 4) The inverted bottom plate 917 is inverted downward by 90° to assume a horizontal state. Step 4: The hinge reversal assembly 910 on the other side is operated synchronously to complete the spreading operation.

[0061] Through the above four steps, the hinge inversion assembly 910 (space expansion assembly) can be expanded, and by performing the reverse operation, the hinge inversion assembly 910 can be retracted. The specific folding and reversing method can be adjusted according to actual needs and is not limited to the single embodiment described above. Example 6, as shown in Figures 22 to 24, is a roof folding and expanding structure.

[0062] The space expansion assembly is designed as a roof folding expansion assembly 920, and the roof folding expansion assembly 920 includes an upper assembly 921 and a lower assembly 922. The upper assembly 921 includes an upper plate and an upper back plate that are hinged together, and the left side of the upper plate is hinged to the rear door 101 of the vehicle compartment. The lower assembly 922 includes three plates, namely a lower plate, a lower back plate and a bottom plate. Depending on the inversion position when the three plates are opened, corresponding sides of the three plates are hinged together, and the lower plate and the upper plate are either hinged together or connected so as to be removable. They are stacked when not unfolded and form a housing structure after unfolding.

[0063] Referring to other embodiments, the use process of this embodiment can be simply described as follows: first, open the rear door 101 of the vehicle compartment; then, the upper assembly 921 is inverted to a vertical position; then, the lower assembly 922 is subsequently inverted or extended to a vertical position and positioned below the upper assembly 921; finally, through the hinge connection relationship, the upper back panel, lower back panel and bottom panel are inverted sequentially to a predetermined position; after being fully expanded, they become a housing structure; and the opening side of the housing structure faces the passenger compartment of the automobile body 100 and communicates with the interior space of the passenger compartment; finally, an auxiliary positioning member is used to position and lock the relative panels.

[0064] Through the above steps, the roof folding and expanding assembly 920 (space expanding assembly) can be expanded, and by performing the reverse operation, the roof folding and expanding assembly 920 can be stored. Example 7, as shown in Figure 25, is a Z-shaped roof folding structure.

[0065] Specifically, in this embodiment, the space expansion assembly is designed as a Z-shaped roof folding assembly 930, which includes an upper folding assembly 931, a lower folding assembly 932, and a linear bottom panel 933. The upper folding assembly 931 includes an upper panel and an upper back panel that are reversibly connected, and the left side of the upper panel is hinged to the rear door 101 of the vehicle cabin. The lower folding assembly 932 includes a lower panel and a lower back panel that are integrally hinged, and the left and right sides of the two symmetrical lower panels are connected to the linear bottom panel 933. When the three panels are opened, their corresponding sides are integrally hinged according to the reversal position. The lower panel and the upper panel are integrally hinged at one edge adjacent to each other. They are stacked when not unfolded, and form a Z-shape during unfolding, and form a housing structure after being fully unfolded.

[0066] Briefly, the use process of this embodiment is as follows: first, open the rear door 101 of the vehicle compartment; then, pull the bottom panel 933 downward to drive the lower folding assembly 932 and the upper folding assembly 931 to spread downward; after spreading out vertically, the upper and lower panels are vertical and perpendicular to the bottom panel 933; then, the hinged and foldable upper and lower panels are flipped clockwise or counterclockwise to spread out to corresponding positions perpendicular to the upper and lower panels; after being fully spread out, they become a housing structure, with the open side of the housing structure facing the passenger compartment of the automobile body 100 and communicating with the interior space of the passenger compartment; finally, use an auxiliary positioning member to position and lock the relative panels.

[0067] Through the above steps, the Z-shaped roof folding assembly 930 (space expanding assembly) can be expanded, and by performing the reverse operation, the Z-shaped roof folding assembly 930 can be retracted.

[0068] Specifically, Examples 6 and 7 are connected to the rear door 101 of the vehicle compartment via a hinge, do not occupy interior space, have little impact on the passenger storage function of the vehicle compartment, and are more convenient for modification work on existing automobile structures.

[0069] In embodiment 8, as shown in Figures 26 to 28, the space expansion assembly is designed as a sliding inverted assembly 940, and includes an inverted drive assembly 941, an inverted expansion assembly 942, and a support roller 943, one end of the inverted drive assembly 941 is connected to both the left and right sides of the rear of the passenger compartment of the automobile body 100, the other end of the inverted drive assembly 941 is hingedly connected to the side wall of the inverted expansion assembly 942, and the support roller 943 is attached to the rear of the passenger compartment of the automobile body 100 and is located below the inverted expansion assembly 942;

[0070] When the rear door 101 of the vehicle compartment is opened, the inverting drive assembly 941 is activated and spread out, and drives the inverting extension assembly 942 to slide backward and invert to become vertical, and the folded plates on the inverting extension assembly 942 are successively spread out to form a housing structure.

[0071] Specifically, the inverting drive assembly 941 uses multiple hydraulic cylinders to form an interlocking robot arm, and the movable end of the robot arm is always hinged to the bottom of the side wall of the inverting extension assembly 942. After the robot arm is extended, the arm length is sufficient for the inverting extension assembly 942 to slide out and invert. The height and width of the inverting extension assembly 942 are consistent with the space inside the vehicle body 100, avoiding interference problems. When stored, the inverting extension assembly 942 lies flat and maintains a rectangular housing structure. The bottom plate is folded inward and tightly attached to the inside of the left and right side plates (when the bottom plate is opened, The inverted extension assembly 942 includes a second main side panel 944, an extended side panel 945, a main back panel 946 connected perpendicularly to the side panels, and an extended back panel 947, which are symmetrically arranged. The extended side panel 945 and the second main side panel 944 are stacked together via a tensioning assembly or a flexible connecting member, and the extended back panel 947 and the main back panel 946 are folded together via a tensioning assembly or a flexible connecting member. When unfolding, they are pushed up directly or inverted. After being fully unfolded, the side panels, back panel, and bottom panel are perpendicular to each other, forming an enclosed enclosure structure and realizing the expansion of the interior space of the vehicle.

[0072] When it is necessary to store the vehicle, the side extension panels 945 and the rear extension panels 947 are first inverted or pushed inward, and then returned to the stacked state. Then, the linked robotic arms formed by hydraulic cylinders are retracted and returned, tilting and sliding the inverted extension assembly 942 in the stacked state upward. After the robotic arms are fully returned, the inverted extension assembly 942 is driven to its initial lying flat state. Finally, the rear door 101 of the vehicle compartment is closed, and the vehicle is returned to its original state.

[0073] In this embodiment, in addition to the above main components, other locking and positioning components are provided to ensure the stability of the sliding reverse assembly 940 during the vehicle running process.

[0074] Specifically, in all the above embodiments, the hinged connection members are preferably made of flexible connecting members 908, which are specifically made of outdoor tent fabric, waterproof fabric, tape or zipper combination fabric, etc., and are preferably made of outdoor tent fabric with waterproof function. When connecting, the two plates are specifically covered with appropriately cut connecting fabric to increase the overlapping area so as to ensure the strength of the connection, and an appropriate reversal gap is reserved on both the opposing sides of the two plates to ensure a completely sealed state when opening and a folding margin when closing.

[0075] In addition, a combination structure of a hinge structure and a flexible connecting member on one side may be adopted between two inverted or folded plates to ensure connection strength and sealing.

[0076] The board material constituting the space expansion assembly may specifically be an aluminum-plastic composite panel with a thickness of 2mm to 3mm, which is lightweight, strong, and can better meet the requirements for use.

[0077] It should be noted that, in this specification, relational terms such as first and second are used only to distinguish one entity or operation from another and do not necessarily require or imply an actual relationship or order between those entities or operations. Furthermore, "comprise," "contain," or any other variation thereof is intended to cover a non-exclusive inclusion, such that a process, method, article, or device comprising a set of elements includes not only those elements but also other elements not expressly listed or inherent in such process, method, article, or device.

[0078] The above examples are merely illustrative of preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention, provided that they do not deviate from the design spirit of the present invention, shall be included in the scope of protection defined by the claims of the present invention. [Explanation of symbols]

[0079] 100, automobile body, 101, rear door of the vehicle compartment, 102, telescopic rod, 103, bottom connection plate, 104, upper positioning plate, 105, assembly positioning plate, 200, slide rail connection assembly, 201, side guide chute, 202, side slide rail, 300, side plate assembly; 301, main side plate; 302, upper side plate; 303, lower side plate; 400, back plate assembly, 401, main back plate, 402, upper back plate, 403, lower back plate, 404, first rotating connection member, 405, second rotating connection member, 500, bottom plate, 501, third rotary connecting member, 600, support leg, 700, guide slide positioning plate, 701, roller, 800, lifting guide slide assembly, 801, upper guide chute, 802, upper guide slide plate, 900, lifting and folding assembly, 901, upper connecting plate, 902, upper folding side plate, 903, middle folding side plate, 904, lower folding side plate, 905, upper folding back plate, 906, middle folding back plate, 907, lower folding back plate, 908, flexible connecting member, 910, hinged inversion assembly, 911, main positioning plate, 912, lower inversion side plate, 913, side intermediate transition plate, 914, rear upper inversion plate, 915, rear lower inversion plate, 916, rear intermediate transition plate, 917, inversion side plate, 920, roof folding extension assembly, 921, upper assembly, 922, lower assembly, 930, roof folding Z-shaped assembly, 931, upper folding assembly, 932, lower folding assembly, 933, straight bottom plate, 940, sliding inverting assembly, 941, inverting drive assembly, 942, inverting extension assembly, 943, support roller, 944, second main side plate, 945, extension side plate, 946, main back plate, 947, extension back plate, 110, first rolling connection plate; 120, hinge pin; 130, second rolling connection plate.

Claims

1. The vehicle comprises a space expansion assembly and a rolling connection assembly, the space expansion assembly being movably attached to the rear of the cabin of the automobile body (100) via the rolling connection assembly, and in use, when the back door (101) of the cabin is opened, the space expansion assembly is expanded rearward and downward by pulling and reversing operations to form a housing structure, and the opening side of the housing structure faces the cabin of the automobile body (100) and communicates with the interior space of the cabin; The space expansion assembly is slidably connected to both the left and right sides of the rear of the vehicle compartment of the vehicle body (100) or to the upper part of the rear of the vehicle compartment, The space expansion assembly is connected to both the left and right sides of the rear of the passenger compartment of the vehicle body (100) via a slide rail connection assembly (200) or a guide sliding positioning plate (700), the slide rail connection assembly (200) includes a side guide chute (201) and a side slide rail (202), the side slide rail (202) is slidably connected to the side guide chute (201), the side guide chute (201) is attached to both the left and right sides of the rear of the passenger compartment of the vehicle body (100), the side slide rail (202) is connected to the space expansion assembly, the guide sliding positioning plate (700) is attached to both the left and right sides of the rear of the passenger compartment of the vehicle body (100), and the space expansion assembly is slidably connected within the chute of the guide sliding positioning plate (700), The space expansion assembly includes three parts: a side plate assembly (300), a back plate assembly (400), and a bottom plate (500) that are connected to each other; The side plate assembly (300) comprises a main side plate (301), an upper side plate (302) and a lower side plate (303), the upper side plate (302) and the lower side plate (303) are connected to both ends of the main side plate (301) in an extensible manner, and the side slide rail (202) is connected to the outer surface of the main side plate (301); The back plate assembly (400) comprises an upper back plate (402), a main back plate (401) and a lower back plate (403) arranged from top to bottom, and the main back plate (401), the upper back plate (402) and the lower back plate (403) are reversibly connected to the outer edges of the main side plate (301), the upper side plate (302) and the lower side plate (303), respectively; The bottom plate (500) is connected to the bottom edge of the lower plate (303). A space expansion mechanism for a vehicle.

2. 2. The space expansion mechanism for a vehicle according to claim 1, wherein the bottom plate (500) adopts a single-plate structure or a symmetrical double-plate structure, and in the case of a single-plate structure, both ends of the bottom plate (500) are connected to the bottom edges of the two lower plates (303) via screws, and in the case of a double-plate structure, the bottom plate (500) is reversibly connected to the bottom edges of the lower plates (303) via a third rotating connecting member (501).

3. 2. The vehicle space expansion mechanism of claim 1, wherein the main back panel (401) is hingedly connected to the outer edge of the main side panel (301) via a second rotary connecting member (405), the upper back panel (402) and the lower back panel (403) are both connected to the outer edges of the upper side panel (302) and the lower side panel (303) via a first rotary connecting member (404), the upper back panel (402) and the lower back panel (403) are folded together adjacent to the upper side panel (302) and the lower side panel (303) after being turned over, the main back panel (401) is parallel to the main side panel (301) after being turned over, and a storage gap is disposed in the middle, and the thickness of the storage gap is equal to the thickness of the upper side panel (302), the lower side panel (303), the upper back panel (402) and the lower back panel (403) after being folded.

4. The space expansion mechanism for an automobile according to claim 3, characterized in that clearance steps are provided on the inner surfaces of the upper and lower ends of the main side plate (301), the depth of the clearance steps is equal to or greater than the height of the upper side plate (302) and the lower side plate (303), and the height of the upper back plate (402) and the lower back plate (403) is equal to or less than the maximum height of the upper side plate (302) and the lower side plate (303).

5. The vehicle is provided with a space expansion assembly and a rolling connection assembly, and the space expansion assembly is movably attached to the rear of the passenger compartment of the automobile body (100) via the rolling connection assembly. When the back door (101) of the passenger compartment is opened in use, the space expansion assembly is expanded rearward and downward by pulling and reversing operations to form a housing structure, and the opening side of the housing structure faces the passenger compartment of the automobile body (100) and communicates with the internal space of the passenger compartment. The space expansion assembly is slidably connected to both the left and right sides of the rear of the vehicle compartment of the vehicle body (100) or to the upper part of the rear of the vehicle compartment, The space expansion assembly is connected to the upper part of the rear of the passenger compartment of the automobile body (100) through a lifting guide slide assembly (800), and the lifting guide slide assembly (800) includes an upper guide chute (801) and an upper guide slide plate (802) that are slidably connected together, the upper guide chute (801) is attached to the upper part of the rear of the passenger compartment of the automobile body (100), and the upper guide slide plate (802) is attached to the space expansion assembly; When lifting, the space expansion assembly is installed on a lifting and folding assembly (900), the lifting and folding assembly (900) includes an upper connecting plate (901), a folding side panel assembly and a folding back panel assembly, the upper surface of the upper connecting plate (901) is slidably connected to the upper guide chute (801) via the upper guide sliding plate (802), two groups of folding side panel assemblies are arranged symmetrically and connected to the left and right edges of the upper connecting plate (901), and the folding back panel assembly is reversibly connected to the folding side panel assembly.

6. The folding side panel assembly comprises an upper folding side panel (902), an intermediate folding side panel (903) and a lower folding side panel (904) that are sequentially folded, one side edge of the upper folding side panel (902) is connected to a side edge of the upper connecting panel (901), and the mutually connected edges of the upper folding side panel (902), the intermediate folding side panel (903) and the lower folding side panel (904) are integrally connected via a 180° hinge structure or a flexible connecting member (908); The folding back panel assembly comprises an upper folding back panel (905), a middle folding back panel (906) and a lower folding back panel (907), wherein the upper folding back panel (905), the middle folding back panel (906) and the lower folding back panel (907) are connected to the outer edges of the upper folding side panel (902), the middle folding side panel (903) and the lower folding side panel (904), respectively, via 90° hinge structures or flexible connecting members (908); 6. The space expansion mechanism for a vehicle according to claim 5, further comprising a bottom plate (500), the bottom plate (500) adopting a double-plate structure, and the bottom plate (500) being reversibly connected to the bottom edge of the lower folding side plate (904) via a 90° hinge structure or a flexible connecting member (908).

7. A space expansion assembly and a rolling connection assembly are provided, and the space expansion assembly is movably attached to the rear of the passenger compartment of the automobile body (100) via the rolling connection assembly. When the back door (101) of the passenger compartment is opened in use, the space expansion assembly is expanded rearward and downward by pulling and reversing operations, forming a housing structure, and the opening side of the housing structure faces the passenger compartment of the automobile body (100) and communicates with the internal space of the passenger compartment. The space expansion assembly is slidably connected to both the left and right sides of the rear of the vehicle compartment of the vehicle body (100) or to the upper part of the rear of the vehicle compartment, The space expansion assembly is designed as a hinged inversion assembly (910), and the hinged inversion assembly (910) is reversibly connected to the self-adaptive positioning structure via a hinge. The hinged inversion assembly (910) includes an inverted side plate assembly, an inverted back plate assembly, and an inverted bottom plate (917). The inverted side plate assembly includes a main positioning plate (911) and a lower inverted side plate (912). The inner edge of the main positioning plate (911) is hingedly connected to the self-adaptive positioning structure. A side intermediate transition plate (913) is hingedly connected between the main positioning plate (911) and the lower inverted side plate (912). Two adjacent edges of the three are integrally connected via a 90° hinge member. The inverted back plate assembly includes a rear upper inverted plate (914) and a rear lower inverted plate (915), the rear upper inverted plate (914) is hingedly connected to the outer vertical side of the main positioning plate (911), the rear lower inverted plate (915) is hingedly connected to the outer vertical side of the lower inverted side plate (912), a rear intermediate transition plate (916) is hingedly connected to the bottom side of the rear upper inverted plate (914), and the inverted bottom plate (917) is hingedly connected to the bottom side of the rear lower inverted plate (915).

8. 8. The vehicle space expansion mechanism of claim 7, wherein the self-adaptive positioning structure includes a telescopic rod (102), a bottom of which is positioned and connected to the bottom of the vehicle compartment via a bottom connecting plate (103), a positioning hole of which is aligned with a positioning hole of the vehicle seat, an upper positioning plate (104) connected to the top of the telescopic rod (102), a self-adaptive block connected to the upper surface of the upper positioning plate (104), the self-adaptive block being made of a flexible material, an assembly positioning plate (105) connected to the outer side of the telescopic rod (102), the assembly positioning plate (105) having a plurality of positioning holes, and an inner edge of the main positioning plate (911) hingedly connected to the assembly positioning plate (105).

9. A space expansion assembly and a rolling connection assembly are provided, and the space expansion assembly is movably attached to the rear of the passenger compartment of the automobile body (100) via the rolling connection assembly. When the back door (101) of the passenger compartment is opened in use, the space expansion assembly is expanded rearward and downward by pulling and reversing operations to form a housing structure, and the opening side of the housing structure faces the passenger compartment of the automobile body (100) and communicates with the internal space of the passenger compartment. The space expansion assembly is slidably connected to both the left and right sides of the rear of the vehicle compartment of the vehicle body (100) or to the upper part of the rear of the vehicle compartment, The space expansion assembly is designed as a roof folding expansion assembly (920), and the roof folding expansion assembly (920) includes an upper assembly (921) and a lower assembly (922), the upper assembly (921) includes an upper panel and an upper back panel that are integrally hinged, and the left side of the upper panel is hinged to the rear door (101) of the vehicle compartment, and the lower assembly (922) includes a lower panel, a lower back panel and a bottom panel, and the three panels are integrally hinged at corresponding sides depending on the inverted position when opened, and the lower panel and the upper panel are either hinged integrally or connected so as to be removable, and are stacked when not expanded and form a housing structure after expanded.

10. A space expansion assembly and a rolling connection assembly are provided, and the space expansion assembly is movably attached to the rear of the passenger compartment of the automobile body (100) via the rolling connection assembly. When the back door (101) of the passenger compartment is opened in use, the space expansion assembly is expanded rearward and downward by pulling and reversing operations, forming a housing structure, and the opening side of the housing structure faces the passenger compartment of the automobile body (100) and communicates with the internal space of the passenger compartment. The space expansion assembly is slidably connected to both the left and right sides of the rear of the vehicle compartment of the vehicle body (100) or to the upper part of the rear of the vehicle compartment, The space expansion assembly is designed as a roof folding Z-shaped assembly (930), and the roof folding Z-shaped assembly (930) includes an upper folding assembly (931), a lower folding assembly (932) and a straight bottom plate (933), the upper folding assembly (931) includes an upper plate and an upper back plate that are integrally hinged, and the left side of the upper plate is hinged to the rear door (101) of the vehicle compartment, and the lower folding assembly (932) The space expansion mechanism for an automobile comprises a lower panel and a lower back panel which are integrally hinged, the left and right sides of the two symmetrical lower panels are connected to a linear bottom panel (933), the three panels are hinged together at corresponding sides depending on the inverted position when opened, and one adjacent edge of the lower panel and the upper panel is hinged together, and is in a stacked state when not unfolded, and takes on a Z-shape during unfolding, and becomes a housing structure after being fully unfolded.

11. A space expansion assembly and a rolling connection assembly are provided, the space expansion assembly being movably attached to the rear of the passenger compartment of the automobile body (100) via the rolling connection assembly, and in use, when the back door (101) of the passenger compartment is opened, the space expansion assembly is expanded rearward and downward by pulling and reversing operations to form a housing structure, and the opening side of the housing structure faces the passenger compartment of the automobile body (100) and is connected to the internal space of the passenger compartment, The space expansion assembly is designed as a sliding inverted assembly (940), and includes an inverted drive assembly (941), an inverted expansion assembly (942), and a support roller (943), one end of the inverted drive assembly (941) is connected to both the left and right sides of the rear of the passenger compartment of the automobile body (100), the other end of the inverted drive assembly (941) is hingedly connected to the side wall of the inverted expansion assembly (942), and the support roller (943) is attached to the rear of the passenger compartment of the automobile body (100) and is located below the inverted expansion assembly (942); When the back door (101) of the vehicle compartment is opened, the reversal drive assembly (941) is activated and spreads, driving the reversal extension assembly (942) to slide backward and reverse to a vertical position, and the plates folded on the reversal extension assembly (942) are successively spread to form a housing structure.

Images