Bottom plate for folding square cabin

By designing a bottom plate that can be installed by air membranes, and using rotating connections and detachable connection components, the problem of fixed space of the folding cabin is solved, the space is expanded rapidly and conveniently operated, and the greater use needs are met.

CN222349937UActive Publication Date: 2025-01-14CHANGZHOU ALUMINUM MOBILE CAPSULE CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202421055597.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-15
Publication Date
2025-01-14
Estimated Expiration
2034-05-15

AI Technical Summary

Technical Problem

The internal space of the existing folding cabin is fixed, which is difficult to expand and cannot meet the needs of larger usage space.

Method used

A bottom plate for air film installation is designed, including a single or multiple extension plates. Through rotary connection and removable connection components, it can form a detachable fixation with the air film. The extension plate is equipped with a zipper and a fixing rod. , hook and matte surface to achieve rapid installation and disassembly of the air film and expand the length of the base plate.

Benefits of technology

It effectively expands the use space of the folding cabin, which is simple and convenient to operate, and the installation and separation of the air membrane is simpler, making it easier to quickly expand and store the space.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN222349937U_ABST
    Figure CN222349937U_ABST
Patent Text Reader

Abstract

The utility model relates to a bottom plate for a folding square cabin, which is provided with a bottom plate, the bottom plate comprises an extension plate or a plurality of extension plates capable of mutually forming rotary connection, the extension plate closest to the folding square cabin is provided with a rotary base capable of forming rotary connection, and the extension plate on the outermost side is provided with a first connecting assembly. The first connecting assembly comprises a first fixing block and a first inserting rod and is further provided with a first annular film which is fixedly arranged at the lower end of the gas film and can communicate with the gas film. The first fixing block is provided with a first inserting groove capable of being in inserting fit with the first annular film, the first inserting rod can be inserted into the first annular film to form inserting fit, and the side edge of the bottom plate can be detachably fixed to the side edge of the gas film through inserting fit between the second inserting opening and the second inserting rod and inserting fit between the second annular film and the second inserting groove. The use space of the folding square cabin can be expanded, and the folding square cabin is convenient to use.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The utility model relates to a bottom plate for a foldable cabin. Background Art

[0002] The foldable shelter is a whole formed by the folding combination of panels. It is a room that can be moved and adjusted at any time. According to different needs, the corresponding structural design is carried out inside it. The shelter is mainly composed of upper panels, lower panels, left panels, right panels, front panels and rear panels.

[0003] When a common folding cabin is in use, since the folding cabin is formed by positioning and adjusting the roof panels one by one after another, the internal space of the folding cabin after unfolding is relatively fixed, and it is not easy to expand the internal space of the folding cabin. In order to achieve a larger usable space, the volume of the folding cabin is also larger.

[0004] A bottom plate is provided which can expand the space outwards on the basis of an existing folding square cabin. Utility Model Content

[0005] The utility model aims to provide a bottom plate for a foldable cabin, which can expand the use space of the foldable cabin and is convenient to use.

[0006] The technical solution for achieving the purpose of the utility model is: the utility model has a base plate for installing an air membrane, the base plate includes a single extension plate or multiple extension plates that can be rotatably connected to each other and can be folded to each other. When the base plate is multiple extension plates, a first rotating base that can form a rotating connection is provided between two adjacent extension plates, a second rotating base that can form a rotating connection is provided on the rightmost extension plate, and a first connecting component is provided on the leftmost extension plate along the extension direction of the profile and can be detachably connected to the air membrane. The first connecting component includes a first fixing block and a first plug rod fixedly arranged on the leftmost extension plate, and also includes a first fixing block fixedly arranged on the lower end of the air membrane and connected to the air membrane. The first annular membrane; the first fixing block is provided with a first slot into which the first annular membrane can be inserted and which can form a plug-in fit with the inflated first annular membrane; the first annular membrane can form a first socket with a hollow middle portion after the air membrane is inflated, the first plug rod can be inserted into the first socket to form a plug-in fit with the first annular membrane, and the leftmost extension plate is detachably fixed to the lower end of the air membrane through the plug-in fit between the first socket and the first plug rod and the plug-in fit between the first annular membrane and the first slot; when the bottom plate is a single extension plate, a second rotating base for forming a rotating connection is provided on the right side of the extension plate, and a first connecting component is provided on the left side of the extension plate along the extension direction of the profile and can form a detachable connection with the air membrane.

[0007] Furthermore, a second connecting component is provided on the front and rear sides of the extension plate along the side extension direction of the extension plate and can be detachably connected to the air membrane. The second connecting component includes a second fixing block and a second plug rod fixedly arranged on the side of the base plate along the side extension direction of the extension plate, and also includes a second annular membrane fixedly arranged on the side of the air membrane and connected to the air membrane; the second fixing block is provided with a second slot for the second annular membrane to be inserted and can form a plug-in fit with the inflated second annular membrane, and the second annular membrane can form a second socket with a hollow middle part after the air membrane is inflated, and the second plug rod can be inserted into the second socket to form a plug-in fit with the second annular membrane, and the side of the base plate can be detachably fixed to the side of the air membrane through the plug-in fit between the second socket and the second plug rod and the plug-in fit between the second annular membrane and the second slot.

[0008] Furthermore, zippers extending along the extension direction of the extension plate are provided on the front and rear sides of the extension plate, one side of the zipper is fixed on the extension plate, and the other side of the zipper is fixed on the air film. The side edge of the bottom plate can be detachably fixed to the side edge of the air film through the action of the zipper.

[0009] Furthermore, the front and rear sides of the extension plate are provided with a plurality of fixing rods evenly arranged along the extension direction of the extension plate, and are also equipped with a plurality of hooks fixedly arranged on the side edges of the air membrane and corresponding to each of the fixing rods to form a snap-fit; the side edges of the base plate can be detachably fixed to the side edges of the air membrane through the snap-fit ​​between the hooks and the fixing rods.

[0010] Furthermore, the side of the extension plate is provided with a rough surface arranged along the extension direction of the extension plate, and is also provided with a hook surface fixedly arranged on the side of the air membrane and capable of forming a match with the rough surface; the side of the extension plate can be detachably fixed to the side of the air membrane through the cooperation of the hook surface and the rough surface.

[0011] Furthermore, when the bottom plate is a plurality of extension plates, the first rotating base is a first rotating member arranged between two adjacent extension plates, and the two adjacent extension plates are rotatably connected to each other through the first rotating member, and the first rotating member includes a first rotating block and a second rotating block respectively fixedly arranged on the two adjacent extension plates, and a first connecting block that can be rotatably matched with the first rotating block and the second rotating block, the first connecting block is symmetrically provided with a first rotating groove and a second rotating groove extending from the side of the connecting block to the middle, the first rotating block is provided with a first rotating ear that can be rotatably matched with the first rotating groove, the second rotating block is provided with a second rotating ear that can be rotatably matched with the second rotating groove, and the two adjacent extension plates are connected through the first rotating ear The foldable luggage carrier is connected to the foldable luggage carrier with a second rotatable luggage carrier, and the foldable luggage carrier is connected to the foldable luggage carrier with a second rotatable luggage carrier.

[0012] Furthermore, when the bottom plate is a single extension plate, the second rotation base is a second rotation member arranged on the right side of the extension plate, and the right side of the extension plate is rotatably connected to the folding cabin through the second rotation member. The second rotation member includes a second connecting block fixedly arranged on the folding cabin and a third rotating block fixedly arranged on the right side of the extension plate and rotatably matched with the second connecting block. The second connecting block is provided with a third rotation groove arranged along the extension direction of the second connecting block, and the third rotating block is provided with a third rotation ear that can rotate with the third rotation ear groove. The right side of the extension plate is rotatably connected to the folding cabin through the rotational cooperation of the third rotating ear and the third rotating groove.

[0013] Furthermore, the first fixing block, the first annular membrane and the first insertion rod are all arranged along the extension direction of the profile from one end to the other end, and the second fixing block, the second annular membrane and the second insertion rod are all arranged along the side direction of the extension plate from one end to the other end of the extension plate.

[0014] Furthermore, a support nail for supporting the bottom plate is fixedly provided at the lower end of the extension plate.

[0015] The utility model has positive effects: (1) the bottom plate of the utility model includes an extension plate or multiple extension plates that can be rotatably connected to each other and can be folded together. After being rotated down from the folding square cabin, one extension plate can form an expansion cabin with the external air film through the first connecting member to expand the use space; multiple extension plates are rotatably connected to each other through the first connecting member. The rotation of multiple extension plates can make the length of the bottom plate longer and provide a larger extension space. At the same time, due to the setting of the first connecting member, the installation and removal of the air film will be simpler and more convenient.

[0016] (2) The plug-in fit between the first socket and the first plug rod in the first connecting member of the utility model and the plug-in fit between the first annular membrane and the first slot enable the first annular membrane to be tightly fixed in the first slot of the first fixing block. The lower end of the air membrane can be detachably fixed to the outermost extension plate through the plug-in fit between the first socket and the first plug rod and the plug-in fit between the first annular membrane and the first slot, so as to facilitate the quick disassembly and assembly of the lower end of the air membrane.

[0017] (3) The second socket of the second connecting member of the utility model can form a plug-in fit with the second plug rod, and the second annular membrane can form a plug-in fit with the second slot. The side of the air membrane can be detachably fixed to the side of the base plate through the plug-in fit between the second socket and the second plug rod, and the second annular membrane and the second slot. The side of the air membrane can be fixed to the base plate by the second connecting member arranged on the side of the base plate, so as to prevent the side of the air membrane from falling off when it is not fixed, causing inconvenience in use.

[0018] (4) The side edge of the bottom plate of the utility model is provided with a zipper extending along the extension direction of the bottom plate, one side of the zipper is fixedly set on the extension plate, and the other side of the zipper is fixedly set on the air film. The side edge of the air film can be detachably fixed on the side edge of the bottom plate by the action of the zipper. The setting of the zipper makes the operation simple, quick and convenient.

[0019] (5) The side of the base plate of the utility model is provided with a plurality of fixing rods evenly arranged along the extension direction of the extension plate, and is also equipped with a plurality of hooks fixedly arranged on the side of the air film and corresponding to each fixing rod to form a snap fit; the side of the air film can be detachably fixed on the side of the base plate through the snap fit of the hooks and the fixing rods, and the operation is simple, quick and convenient through the cooperation of the hooks and the fixing rods.

[0020] (6) The side edge of the bottom plate of the utility model is provided with a rough surface arranged along the extension direction of the extension plate, and is also equipped with a hook surface fixedly arranged on the side edge of the air film and capable of forming a match with the rough surface; the side edge of the air film can be detachably fixed on the side edge of the bottom plate through the cooperation of the hook surface and the rough surface, and the operation is simple, quick and convenient through the cooperation of the rough surface and the hook surface.

[0021] (7) The extension plate of the utility model can form a rotational connection with the adjacent extension plate through the rotational cooperation between the first rotating ear and the first rotating groove in the first rotating member and the rotational cooperation between the second rotating ear and the second rotating groove. At the same time, an additional extension plate can also be added to the base plate through the first rotating member to extend the length of the base plate so as to expand a larger usage area. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to make the content of the utility model easier to understand, the utility model is further described in detail according to specific embodiments and in conjunction with the accompanying drawings.

[0023] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0024] Figure 2 It is a structural schematic diagram of the first connecting member in the utility model;

[0025] Figure 3 is a schematic structural diagram of the second connecting member in Example 1;

[0026] Figure 4 This is a schematic diagram of the installation structure of the zipper in Example 2;

[0027] Figure 5 This is a schematic diagram of the cooperation between the hook and the fixing rod in Example 3;

[0028] Figure 6 Schematic diagram of the matching of the fleece surface and the hook surface in Example 4;

[0029] Figure 7 It is a structural schematic diagram of the first rotating member of the utility model;

[0030] Figure 8 This is a structural schematic diagram of the first connecting block of the utility model;

[0031] Fig. 9 It is a structural schematic diagram of the first rotating block of the utility model;

[0032] Fig.10 It is a structural schematic diagram of the second rotating block of the utility model;

[0033] Fig.11 This is a schematic diagram of the structure of the second connecting member of the utility model

[0034] Fig.12 This is a schematic diagram of the structure of the second connecting block of the utility model

[0035] Fig.13 This is a schematic diagram of the structure of the third rotating block of the utility model DETAILED DESCRIPTION

[0036] (Example 1)

[0037] See Figure 1 , Figure 2 , Figure 3 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 , Fig.11 , Fig.12 as well as Fig.13 The utility model has a bottom plate for installing an air film, the bottom plate includes a single extension plate 1 or multiple extension plates 1 that can be rotatably connected to each other and can be folded to each other. When the bottom plate is multiple extension plates 1, a first rotation base that can form a rotational connection is provided between two adjacent extension plates 1, and a second rotation base that can form a rotational connection is provided on the rightmost extension plate 1. A first connecting component 2 that is detachably connected to the air film and is provided on the leftmost extension plate 1 along the extension direction of the profile, the first connecting component 2 includes a first fixing block 21 and a first plug rod 22 fixedly arranged on the leftmost extension plate 1, and also includes a first annular film 23 that can be fixedly arranged on the lower end of the air film and is connected to the air film; the first fixing block 21 is provided with a first fixing block 21. A first slot 24 is provided for the first annular membrane 23 to be inserted and can form a plug-in fit with the inflated first annular membrane 23. The first annular membrane 23 can form a first socket 25 with a hollow middle part after the air membrane is inflated. The first plug rod 22 can be inserted into the first socket 25 to form a plug-in fit with the first annular membrane 23. The leftmost extension plate 1 is detachably fixed to the lower end of the air membrane through the plug-in fit between the first socket 25 and the first plug rod 22 and the plug-in fit between the first annular membrane 23 and the first slot 24. When the bottom plate is a single extension plate 1, a second rotating base for forming a rotating connection is provided on the right side of the extension plate 1, and a first connecting component 2 is provided on the left side along the extension direction of the profile and can form a detachable connection with the air membrane.

[0038] The front and rear sides of the extension plate 1 are provided with a second connecting component 3 which is extended along the side direction of the extension plate 1 and can be detachably connected to the air membrane. The second connecting component 3 includes a second fixing block 31 and a second plug rod 32 which are fixedly arranged on the side of the base plate along the side extension direction of the extension plate 1, and also includes a second annular membrane 33 which can be fixedly arranged on the side of the air membrane and is connected to the air membrane; the second fixing block 31 is provided with a second slot 34 for the second annular membrane 33 to be inserted and which can form a plug-in fit with the inflated second annular membrane 33; the second annular membrane 33 can form a second socket 35 with a hollow middle part after the air membrane is inflated; the second plug rod 32 can be inserted into the second socket 35 to form a plug-in fit with the second annular membrane 33; the side of the base plate can be detachably fixed to the side of the air membrane through the plug-in fit between the second socket 35 and the second plug rod 32 and the plug-in fit between the second annular membrane 33 and the second slot 34.

[0039] When the bottom plate is a plurality of extension plates 1, the first rotation base is a first rotation member 9 arranged between two adjacent extension plates 1, and the two adjacent extension plates 1 are connected to each other by the first rotation member 9. The first rotation member 9 includes a first rotation block 91 and a second rotation block 92 respectively fixed on the two adjacent extension plates 1, and a first connecting block 93 that can form a rotational match with the first rotation block 91 and the second rotation block 92. The first connecting block 93 is symmetrically provided with a first rotation groove 931 and a second rotation groove 932 extending from the side of the connecting block to the middle, the first rotation block 91 is provided with a first rotation ear 911 that can form a rotational match with the first rotation groove 931, and the second rotation block 92 is provided with a second rotation ear 921 that can form a rotational match with the second rotation groove 932. The two adjacent extension plates 1 are connected to the first rotation groove 931 through the first rotation ear 911. The second rotating base is a second rotating member 10 arranged on the rightmost extension plate 1, and the rightmost extension plate 1 is rotatably connected to the folding cabin through the second rotating member 10. The second rotating member 10 includes a second connecting block 101 fixedly arranged on the folding cabin and a third rotating block 102 fixedly arranged on the right side of the extension plate 1 and capable of forming a rotational cooperation with the second connecting block 101. The second connecting block 101 is provided with a third rotation groove 1011 arranged along the extension direction of the second connecting block 101, and the third rotating block 102 is provided with a third rotating ear 1021 which can form a rotational cooperation with the third rotating ear 1021 groove. The right side of the extension plate 1 is rotatably connected to the folding cabin through the rotational cooperation between the third rotating ear 1021 and the third rotation groove 1011.

[0040] When the bottom plate is a single extension plate 1, the second rotation base is a second rotation member 10 arranged on the right side of the extension plate 1, and the right side of the extension plate 1 is rotationally connected to the folding cabin through the second rotation member 10. The second rotation member 10 includes a second connecting block 101 fixedly arranged on the folding cabin and a third rotating block 102 fixedly arranged on the right side of the extension plate 1 and capable of rotating with the second connecting block 101. The second connecting block 101 is provided with a third rotating groove 1011 arranged along the extension direction of the second connecting block 101, and the third rotating block 102 is provided with a third rotating ear 1021 capable of rotating with the third rotating ear 1021 groove. The right side of the extension plate 1 is rotationally connected to the folding cabin through the rotational cooperation between the third rotating ear 1021 and the third rotating groove 1011.

[0041] The first fixing block 21, the first annular membrane 23 and the first insertion rod 22 are all arranged along the extension direction of the profile from one end to the other end, and the second fixing block 31, the second annular membrane 33 and the second insertion rod 32 are all arranged along the side direction of the extension plate from one end to the other end of the extension plate.

[0042] A supporting nail 1 - 1 for supporting the bottom plate is fixedly provided at the lower end of the extension plate 1 .

[0043] (Example 2)

[0044] See Figure 4 The front and rear sides of the extension plate 1 of the utility model are provided with a zipper 4 extending along the extension direction of the extension plate 1, one side of the zipper is fixedly set on the extension plate 1, and the other side of the zipper is fixedly set on the air film. The side edge of the bottom plate can be detachably fixed with the side edge of the air film through the action of the zipper; the other technical features are consistent with those of Example 1.

[0045] (Example 3)

[0046] See Figure 5 The front and rear sides of the extension plate 1 of the utility model are provided with a plurality of fixing rods 5 evenly arranged along the extension direction of the extension plate 1, and are also equipped with a plurality of hooks 6 fixedly arranged on the side edges of the air membrane and corresponding to each fixing rod 5 to form a snap fit; the side edges of the bottom plate can be detachably fixed to the side edges of the air membrane through the snap fit of the hooks 6 and the fixing rods 5; the remaining technical features are consistent with those of Example 1.

[0047] (Example 4)

[0048] See Figure 6 The side of the extension plate 1 of the utility model is provided with a rough surface 7 arranged along the extension direction of the extension plate 1, and is also equipped with a hook surface 8 fixedly arranged on the side of the air film and capable of forming a match with the rough surface 7; the side of the extension plate 1 can be detachably fixed to the side of the air film through the cooperation of the hook surface 8 and the rough surface 7; the remaining technical features are consistent with those of Example 1.

[0049] The working principle of the utility model is as follows: when the bottom plate is a single extension plate 1, one end of an extension plate 1 is rotated and released from the folding cabin through the second rotating member 10, and the other end of an extension plate 1 is detachably fixed to the air film through the first connecting member; when the bottom plate is a plurality of extension plates 1, two adjacent extension plates 1 are rotated with each other through the first rotating member 9, and the extension plate 1 closest to the folding cabin is rotatably set on the folding cabin through the second rotating member 10; a second connecting component 3 is provided on the front and rear sides of the extension plate 1 along the side extension direction of the extension plate 1 and can be detachably connected to the air film, and the side of the extension plate 1 is detachably fixed to the side of the air film through the plug-in cooperation of the second socket 35 in the second connecting component 3 and the second plug rod 32 and the plug-in cooperation of the second annular membrane 33 and the second slot 34; after use, the plurality of extension plates 1 are stacked together through the first rotating member 9, and then rotated into the folding cabin for storage through the second rotating member 10.

[0050] The specific embodiments described above further illustrate the purpose, technical solutions and beneficial effects of the present invention. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A bottom plate for a foldable shelter, having a bottom plate for installing an air membrane, characterized in that: The bottom plate comprises a single extension plate (1) or a plurality of extension plates (1) which can be rotatably connected to each other and can be folded to each other. When the bottom plate comprises a plurality of extension plates (1), a first rotation base which can be rotatably connected is provided between two adjacent extension plates (1), a second rotation base which can be rotatably connected is provided on the rightmost extension plate (1), and a first connection component (2) which is detachably connected to the air film and extends along the extension direction of the profile on the leftmost extension plate (1). The first connection component (2) comprises a first fixing block (21) and a first insertion rod (22) which are fixedly arranged on the leftmost extension plate (1), and also comprises a first annular film (23) which can be fixedly arranged on the lower end of the air film and is connected to the air film; the first fixing block (21) is provided with a first annular film (23) which can be inserted into the first annular film (23). The first annular membrane (23) is inserted into and can form a first slot (24) that can be plugged into and fit with the inflated first annular membrane (23); the first annular membrane (23) can form a first socket (25) with a hollow center after the air membrane is inflated; the first plug rod (22) can be inserted into the first socket (25) to form a plug-in fit with the first annular membrane (23); the leftmost extension plate (1) can be detachably fixed to the lower end of the air membrane through the plug-in fit between the first socket (25) and the first plug rod (22) and the plug-in fit between the first annular membrane (23) and the first slot (24); when the bottom plate is a single extension plate (1), the right side of the extension plate (1) is provided with a second rotation base that can form a rotational connection, and the left side of the extension plate (1) is provided with a first connection component (2) that is along the extension direction of the profile and can form a detachable connection with the air membrane.

2. A bottom plate for a foldable shelter according to claim 1, characterized in that: The front and rear sides of the extension plate (1) are both provided with a second connection assembly (3) extending in the direction of the side edge of the extension plate (1) and capable of being detachably connected to the air membrane. The second connection assembly (3) comprises a second fixing block (31) and a second insertion rod (32) fixedly arranged on the side edge of the bottom plate along the direction of the side edge of the extension plate (1), and also comprises a second annular membrane (33) fixedly arranged on the side edge of the air membrane and connected to the air membrane; the second fixing block (31) is provided with a second annular membrane (33) for insertion and A second slot (34) can be formed to be plugged in with the inflated second annular membrane (33); after the air membrane is inflated, the second annular membrane (33) can form a second socket (35) with a hollow center; the second plug rod (32) can be inserted into the second socket (35) to be plugged in with the second annular membrane (33); the side edge of the bottom plate can be detachably fixed to the side edge of the air membrane through the plug-in fit between the second socket (35) and the second plug rod (32) and the plug-in fit between the second annular membrane (33) and the second slot (34).

3. A bottom plate for a foldable shelter according to claim 1, characterized in that: The front and rear sides of the extension plate (1) are both provided with zippers (4) extending along the extension direction of the extension plate (1); one side of the zipper is fixedly arranged on the extension plate (1), and the other side of the zipper is fixedly arranged on the air membrane; the side edge of the bottom plate can be detachably fixed to the side edge of the air membrane through the action of the zipper.

4. The bottom plate for a foldable shelter according to claim 1, characterized in that: The front and rear sides of the extension plate (1) are provided with a plurality of fixing rods (5) evenly arranged along the extension direction of the extension plate (1), and are also provided with a plurality of hooks (6) fixedly arranged on the side edges of the air membrane and corresponding to each fixing rod (5) to form a snap fit; the side edges of the bottom plate can be detachably fixed to the side edges of the air membrane through the snap fit between the hooks (6) and the fixing rods (5).

5. The bottom plate for a foldable shelter according to claim 1, characterized in that: The side edge of the extension plate (1) is provided with a rough surface (7) arranged along the extension direction of the extension plate (1), and is also provided with a hook surface (8) fixedly arranged on the side edge of the air membrane and capable of forming a match with the rough surface (7); the side edge of the extension plate (1) can be detachably fixed to the side edge of the air membrane through the cooperation of the hook surface (8) and the rough surface (7).

6. The bottom plate for a foldable shelter according to claim 1, characterized in that: When the bottom plate is a plurality of extension plates (1), the first rotation base is a first rotation member (9) arranged between two adjacent extension plates (1), and the two adjacent extension plates (1) are connected to each other in rotation via the first rotation member (9). The first rotation member (9) comprises a first rotation block (91) and a second rotation block (92) respectively fixedly arranged on the two adjacent extension plates (1), and a first connecting block (93) capable of forming a rotational fit with the first rotation block (91) and the second rotation block (92). The first connecting block (93) is symmetrically provided with a first rotation groove (931) and a second rotation groove (932) extending from the side edge of the connecting block to the middle. The first rotation block (91) is provided with a first rotation ear (911) capable of forming a rotational fit with the first rotation groove (931), and the second rotation block (92) is provided with a second rotation ear (921) capable of forming a rotational fit with the second rotation groove (932). The two adjacent extension plates (1) are connected to the first rotation groove (931) via the first rotation ear (911). The second rotating base is a second rotating member (10) arranged on the rightmost extension plate (1), and the rightmost extension plate (1) is rotatably connected to the folding cabin through the second rotating member (10). The second rotating member (10) includes a second connecting block (101) fixedly arranged on the folding cabin and a third rotating block (102) fixedly arranged on the right side of the extension plate (1) and capable of forming a rotatable cooperation with the second connecting block (101). The second connecting block (101) is provided with a third rotating groove (1011) arranged along the extension direction of the second connecting block (101). The third rotating block (102) is provided with a third rotating ear (1021) capable of forming a rotatable cooperation with the third rotating ear (1021) groove. The right side of the extension plate (1) is rotatably connected to the folding cabin through the rotatable cooperation between the third rotating ear (1021) and the third rotating groove (1011).

7. The bottom plate for a foldable shelter according to claim 1, characterized in that: When the bottom plate is a single extension plate (1), the second rotation base is a second rotation member (10) arranged on the right side of the extension plate (1), and the right side of the extension plate (1) is rotationally connected to the folding cabin through the second rotation member (10). The second rotation member (10) comprises a second connecting block (101) fixedly arranged on the folding cabin and a third rotating block (102) fixedly arranged on the right side of the extension plate (1) and capable of forming a rotational fit with the second connecting block (101). The second connecting block (101) is provided with a third rotation groove (1011) arranged along the extension direction of the second connecting block (101), and the third rotating block (102) is provided with a third rotation ear (1021) capable of forming a rotational fit with a third rotation ear (1021) groove. The right side of the extension plate (1) is rotationally connected to the folding cabin through the rotational fit between the third rotation ear (1021) and the third rotation groove (1011).

8. The bottom plate for a foldable shelter according to claim 2, characterized in that: The first fixing block (21), the first annular membrane (23) and the first insertion rod (22) are all arranged along the extension direction of the profile from one end to the other end of the profile, and the second fixing block (31), the second annular membrane (33) and the second insertion rod (32) are all arranged along the side direction of the extension plate from one end to the other end of the extension plate.

9. The bottom plate for a foldable shelter according to claim 1, characterized in that: A supporting nail (1-1) for supporting the bottom plate is fixedly provided at the lower end of the extension plate (1).