Inner container and cooking equipment

By using a snap-on shelf installation assembly on the inner liner of the steam and baking machine, the complex problem of shelf assembly in the prior art is solved, the assembly efficiency is improved and suitable for large-scale assembly.

CN222815645UActive Publication Date: 2025-05-02HANGZHOU ROBAM APPLIANCES CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202421639291.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-11
Publication Date
2025-05-02
Estimated Expiration
2034-07-11

AI Technical Summary

Technical Problem

The shelf assembly process of existing steam and baking machines is complicated, resulting in low assembly efficiency and is not suitable for large-scale assembly.

Method used

The shelf mounting assembly arranged in a snap-on manner quickly fixes the shelf on the inner liner through the combination of fixtures and fasteners, simplifying the assembly process.

Benefits of technology

Improves the assembly efficiency of shelves and inner shells, simplifies the assembly process, is suitable for large-scale assembly, and reduces time and cost.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN222815645U_ABST
    Figure CN222815645U_ABST
Patent Text Reader

Abstract

The utility model belongs to the technical field of kitchen utensils, and discloses an inner container and cooking equipment, the inner container comprises an inner container body and a shelf installation assembly, the shelf installation assembly is arranged on the inner container body in a buckling mode, and the shelf installation assembly is used for fixing a shelf. The cooking equipment comprises a shelf and an inner container, and the shelf is connected with the shelf mounting assembly. The inner container provided by the utility model is convenient to assemble and has higher assembly efficiency, and the cooking equipment provided by the utility model has higher assembly efficiency.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The utility model relates to the technical field of kitchen utensils, in particular to an inner pot and cooking equipment. Background Art

[0002] The all-in-one steam-bake machine has become an indispensable cooking appliance in the kitchen. The all-in-one steam-bake machine is usually equipped with a baking tray, a grill, etc. for users to use during the cooking process.

[0003] In the prior art, the racks carrying the baking tray and the grill are installed on the left and right side walls of the inner pot of the steam-bake combination machine. When using, the user needs to select the appropriate number of layers, push the baking tray and the grill loaded with food into the rack track, and cook. The rack is fixed to the side wall of the inner pot by screws and nuts. Specifically, when assembling the rack, the screws need to be passed through the rack and the side wall of the inner pot in turn, and then locked with nuts. It can be seen that the assembly process of the rack is relatively complicated, resulting in low assembly efficiency of the rack, which is not suitable for large-scale assembly.

[0004] Therefore, there is an urgent need for an inner pot and cooking equipment with high assembly efficiency. Utility Model Content

[0005] One purpose of the utility model is to provide an inner container which is easy to assemble and has high assembly efficiency.

[0006] As conceived above, the technical solution adopted by the utility model is:

[0007] The liner comprises an liner body and a shelf mounting assembly, wherein the shelf mounting assembly is arranged on the liner body in a snap-fit ​​manner, and the shelf mounting assembly is used to fix the shelf.

[0008] Optionally, the shelf mounting assembly includes a fixing member and a snap-on member;

[0009] The inner liner body is provided with a mounting hole, the fixing piece includes a connected large end and a small end, the radial length of the large end is greater than the aperture of the mounting hole, the small end passes through the mounting hole and is clamped with the snap-fit ​​piece, and the radial length of the snap-fit ​​piece is greater than the aperture of the mounting hole.

[0010] Optionally, a slot is formed at the small end, and the buckle is sleeved on the small end and axially limited in the slot.

[0011] Optionally, the buckle includes a buckle body and a plurality of elastic buckling parts, the buckle body is annular and is sleeved on the fixing member, the plurality of elastic buckling parts are arranged on the inner wall of the buckle body at intervals along the circumference of the buckle body, a buckling groove is circumferentially opened at the small end, and the elastic buckling parts abut against the groove wall of the buckle groove.

[0012] Optionally, the edge of the clip contacts the inner liner body, the middle portion of the clip protrudes in a direction away from the inner liner body, and the small end passes through the mounting hole and is clipped with the middle portion of the clip.

[0013] Optionally, the groove wall of the slot in the direction of the small end axis away from the large end is a first inclined wall, and the distance between the first inclined wall and the center axis of the small end gradually increases along the direction away from the large end, and the snap member can slide along the first inclined wall.

[0014] Optionally, the small end is provided with a second inclined wall, and in the axial direction of the small end, the card slot is located between the second inclined wall and the large end, and along the direction away from the large end, the distance between the second inclined wall and the central axis of the small end gradually decreases, and the snap member can slide along the second inclined wall.

[0015] Optionally, the snap fastener is arranged outside the inner liner body.

[0016] Optionally, the shelf installation assembly is provided with a socket, and the socket is used for inserting the shelf; or,

[0017] The shelf installation components are provided in plurality, and the shelf is supported by the plurality of shelf installation components.

[0018] Another object of the present invention is to provide a cooking device with higher assembly efficiency.

[0019] As conceived above, the technical solution adopted by the utility model is:

[0020] A cooking device comprises a rack and the inner pot as described above, wherein the rack is mounted on the inner pot body through the rack mounting assembly.

[0021] The inner pot and cooking device provided by the utility model have at least the following beneficial effects:

[0022] The shelf is connected to the inner liner body through a shelf mounting assembly, and the shelf mounting assembly is arranged on the inner liner body in a snap-on manner, so that the shelf mounting assembly can be quickly assembled on the inner liner body. After the shelf mounting assembly is assembled on the inner liner body, the shelf can be installed on the inner liner through the shelf mounting assembly, which simplifies the assembly process of the shelf mounting assembly and the inner liner body, improves the assembly efficiency, and is suitable for large-scale assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is an exploded schematic diagram of the inner container provided by the embodiment of the utility model;

[0024] Figure 2 It is a structural schematic diagram of a fixing member provided in an embodiment of the utility model;

[0025] Figure 3 is a cross-sectional view of a fixing member provided in an embodiment of the utility model;

[0026] Figure 4 It is a structural schematic diagram of a buckle provided in an embodiment of the utility model;

[0027] Figure 5 is a cross-sectional view of a fastener provided in an embodiment of the utility model;

[0028] Figure 6 It is a partial cross-sectional view of the inner container provided by the embodiment of the utility model;

[0029] Figure 7 It is a structural schematic diagram of part of the cooking equipment provided by the embodiment of the utility model.

[0030] In the figure:

[0031] 100, liner body; 110, mounting hole; 200, shelf mounting assembly; 201, jack; 210, fixing piece; 211, slot; 212, large end; 213, small end; 214, first slanted wall; 215, second slanted wall; 220, buckle; 221, elastic clamping part; 222, buckle body; 223, through hole; 300, shelf. DETAILED DESCRIPTION

[0032] In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the present invention are further described below in conjunction with the accompanying drawings and through specific implementation methods. It is understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for the convenience of description, only the parts related to the present invention are shown in the accompanying drawings, rather than all of them.

[0033] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0034] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] In the present utility model, unless otherwise clearly stipulated and limited, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them. Moreover, the first feature being "above", "above" and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature. In the description of this embodiment, unless otherwise specified, "multiple" specifically refers to two or more.

[0036] In the description of this embodiment, the terms "upper", "lower", "right", etc., are based on the directions or positions shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0037] This embodiment provides an inner pot that can be used in cooking equipment, is easy to assemble, and has high assembly efficiency.

[0038] like Figures 1 to 6 As shown, the liner includes an liner body 100 and a shelf mounting assembly 200. The shelf mounting assembly 200 is arranged on the liner body 100 in a snap-fit ​​manner to facilitate the assembly of the shelf mounting assembly 200 and the liner body 100. In some optional embodiments, the shelf mounting assembly 200 is arranged on the inner wall of the liner body 100 in a snap-fit ​​manner.

[0039] The shelf installation assembly 200 is used to install the shelf 300 , that is, the shelf 300 is installed on the inner container body 100 through the shelf installation assembly 200 .

[0040] The inner liner provided in this embodiment has a shelf 300 connected to the inner liner body 100 through a shelf mounting assembly 200. The shelf mounting assembly 200 is set on the inner liner body 100 in a snap-fit ​​manner, so that the shelf mounting assembly 200 can be quickly assembled on the inner liner body 100. After the shelf mounting assembly 200 is assembled on the inner liner body 100, the shelf 300 can be installed on the inner liner through the shelf mounting assembly 200, which simplifies the assembly process of the shelf mounting assembly 200 and the inner liner body 100, improves the assembly efficiency, and is suitable for large-scale assembly.

[0041] Furthermore, compared with the prior art, the inner liner provided in this embodiment reduces the operation of locking the nuts during assembly, reduces the installation time, reduces the time cost, and thus improves the assembly efficiency.

[0042] Alternatively, if Figure 1 As shown, the shelf mounting assembly 200 includes a fixing member 210 and a buckle member 220. The inner wall of the inner tank body 100 is provided with a mounting hole 110. The fixing member 210 includes a large end 212 and a small end 213 connected. For example, the large end 212 and the small end 213 in this embodiment are coaxially connected.

[0043] The radial length of the large end 212 is greater than the aperture of the mounting hole 110, so that the large end 212 does not pass through the mounting hole 110, but is always located on the side of the inner wall provided with the mounting hole 110. It should be noted that the radial length of the large end 212 is the maximum length of the large end 212 in the radial direction of the fixing member 210, and the aperture of the mounting hole 110 is the diameter of the mounting hole 110.

[0044] The small end 213 passes through the mounting hole 110 and is engaged with the fastener 220 , thereby achieving the engagement of the shelf mounting assembly 200 with the inner container body 100 .

[0045] In this embodiment, the radial length of the buckle 220 is greater than the aperture of the mounting hole 110, so that the buckle 220 does not pass through the mounting hole 110, but is always located on the other side of the inner wall provided with the mounting hole 110. It should be noted that the radial length of the buckle 220 is the maximum length of the buckle 220 in its radial direction.

[0046] For example, the mounting hole 110 in this embodiment can be a circular hole, which is convenient for processing and manufacturing the mounting hole 110 and for passing the small end 213. Of course, it can be understood that the mounting hole 110 can also be a polygonal hole, etc., which is not limited in this embodiment.

[0047] Alternatively, if Figure 2 As shown, the small end 213 is provided with a slot 211 in the circumferential direction, the buckle 220 is sleeved on the small end 213, and the buckle 220 is axially limited in the slot 211, so that the buckle 220 will not move axially relative to the small end 213, so as to realize the buckle connection between the small end 213 and the buckle 220. By providing the slot 211 on the small end 213, the structure of the shelf mounting assembly 200 can be simpler on the basis of realizing the buckle connection function.

[0048] It can be understood that the clamping method of the small end 213 and the fastener 220 is not limited to the form of setting the clamping groove 211. For example, the circumferential outer wall of the small end 213 can also be provided with a groove, and the fastener 220 is sleeved on the small end 213, and the fastener 220 can also be connected with a top screw, and the top screw elastically presses against the groove to achieve the clamping connection between the small end 213 and the fastener 220.

[0049] In this embodiment, Figure 4 or Figure 5 As shown, the buckle 220 includes a buckle body 222 and a plurality of elastic clamping parts 221. The buckle body 222 is annular and sleeved on the fixing member 210. The plurality of elastic clamping parts 221 are arranged at intervals on the inner wall of the buckle body 222 along the circumference of the buckle body 222. The small end 213 is provided with a clamping groove 211. Each elastic clamping part 221 abuts against the groove wall of the clamping groove 211 to limit the axial movement of the buckle 220. In this embodiment, by providing a plurality of elastic clamping parts 221, the reliability and stability of the clamping of the buckle 220 and the fixing member 210 are improved, thereby improving the load-bearing capacity of the shelf mounting assembly 200.

[0050] Further optionally, if Figure 3 As shown, the slot 211 can extend in a ring shape along the circumference of the small end 213, which is convenient for processing and manufacturing, and also reduces the difficulty of assembling the shelf mounting assembly 200. The slot 211 can also be provided with a plurality of elastic clamping parts 221 corresponding to the slot 211, and each elastic clamping part 221 can abut against the slot wall of the corresponding slot 211, and can also realize the clamping connection between the small end 213 and the buckle 220.

[0051] For example, one end of the multiple elastic clamping parts 221 away from the inner wall of the buckle body 222 cooperates with each other to form a through hole 223, and the through hole 223 is used for the small end 213 to pass through. It should be noted that, since one end of the elastic clamping part 221 is fixed and the other end is free, the free end of the elastic clamping part 221 can move along the axial direction of the buckle 220, thereby making the aperture size of the through hole 223 formed by the multiple elastic clamping parts 221 variable, which is convenient for the small end 213 to penetrate and withdraw.

[0052] For example, Figure 4 As shown, the width of the elastic clip part 221 at one end away from the inner wall of the clip body 222 is smaller than the width of the end connected to the clip body 222. On the one hand, the elastic clip part 221 and the clip body 222 can have a higher connection strength. On the other hand, the probability of interference between two adjacent elastic clip parts 221 is reduced, thereby improving the reliability of the shelf mounting assembly 200.

[0053] It should be noted that the elastic clamping portion 221 and the buckle body 222 in this embodiment can be an integrated structure, so that the shelf installation assembly 200 has a high degree of integrity. Of course, it is understandable that the elastic clamping portion 221 and the buckle body 222 can also be a split structure, which is not limited in this embodiment.

[0054] Alternatively, if Figure 6 As shown, the edge of the clip 220 contacts the liner body 100, the middle of the clip 220 protrudes in a direction away from the liner body 100, and the small end 213 passes through the mounting hole 110 and is engaged with the middle of the clip 220, so that the clip 220 contacts the liner body 100 and the small end 213, thereby preventing the fixing member 210 from shaking, improving the stability of the shelf mounting assembly 200, and thereby improving the stability of the shelf 300 fixed on the shelf mounting assembly 200. In this embodiment, the outer edge of the clip body 222 contacts the liner body 100, and the middle of the clip body 222 and the elastic clamping portion 221 are in a protruding shape protruding in a direction away from the liner body 100.

[0055] In some optional embodiments, the buckle body 222 is in a spherical crown shape, that is, the surface of the buckle body 222 facing away from the inner liner body 100 is an arc surface, which is convenient for processing and manufacturing the buckle body 222. For example, the buckle body 222 can be formed by stamping. Of course, it can be understood that the buckle body 222 can also be a planar structure, which is not limited in this embodiment.

[0056] The elastic clamping portion 221 in this embodiment is arc-shaped, and multiple elastic clamping portions 221 are located on the same virtual sphere to facilitate clamping and matching with the annular clamping groove 211. For example, the virtual sphere where the buckle body 222 is located is the same as the virtual sphere where the multiple elastic clamping portions 221 are located, so that the buckle body 222 and the elastic clamping portions 221 are formed at the same time.

[0057] Optionally, see Figure 2 or Figure 3 , the side wall of the slot 211 that is away from the large end 212 in the axial direction of the small end 213 is the first inclined wall 214. Along the direction away from the large end 212, the distance between the first inclined wall 214 and the central axis of the small end 213 gradually increases, and the buckle 220 can slide along the first inclined wall 214. By providing the first inclined wall 214, it is convenient for the buckle 220 to slide out of the slot 211 under the action of external force, and the first inclined wall 214 can also guide the buckle 220 to slide out of the slot 211, so that the elastic clamping part 221 can be separated from the small end 213, so that the shelf installation assembly 200 can be reused, and the efficiency of disassembling the inner tank is improved.

[0058] In some optional embodiments, when the buckle 220 is limited in the slot 211, Figure 6 As shown, the plurality of elastic clamping parts 221 are all against the first inclined wall 214. When the buckle 220 passes through the first inclined wall 214 in a direction away from the large end 212, under the action of the first inclined wall 214, the plurality of elastic clamping parts 221 are elastically deformed, and the diameter of the through hole 223 formed by the surrounding is gradually increased. The gradual deformation of the elastic clamping parts 221 can reduce the probability of the elastic clamping parts 221 being broken.

[0059] Optionally, the small end 213 is provided with a second inclined wall 215. Specifically, in the axial direction of the small end 213, the slot 211 is located between the second inclined wall 215 and the large end 212. In the direction away from the large end 212, the distance between the second inclined wall 215 and the central axis of the small end 213 gradually decreases, and the buckle 220 can slide along the second inclined wall 215. By providing the second inclined wall 215, it is easy for the buckle 220 to slide into the slot 211 under the action of external force, so that the buckle 220 and the small end 213 are smoothly engaged, reducing the difficulty of connecting the fixing member 210 with the buckle 220.

[0060] Specifically, when the latch 220 passes through the second inclined wall 215 in a direction close to the slot 211, under the action of the second inclined wall 215, multiple elastic clamping parts 221 are elastically deformed, and the diameter of the through hole 223 formed therein gradually increases. The gradual deformation of the elastic clamping parts 221 can reduce the probability of the elastic clamping parts 221 breaking.

[0061] In this embodiment, the fastener 220 is disposed outside the liner body 100 so that the fastener 220 does not occupy the space inside the liner body 100. The large end 212 is disposed inside the liner body 100 and can be thinner so as not to occupy too much inner wall space of the liner body 100.

[0062] In some optional embodiments, such as Figure 2 As shown, the shelf installation assembly 200 is provided with a socket 201, and the socket 201 is used for inserting the shelf 300. The shelf 300 is inserted on the shelf installation assembly 200 to achieve installation on the inner tank body 100. Further, the socket 201 in this embodiment is arranged on the fixing member 210. Specifically, the socket 201 is arranged on the end surface of the large end 212 and extends along the axial direction of the fixing member 210 to the end surface of the small end 213 to have a long insertion length, so that the shelf 300 is not easy to be removed from the socket 201 during use, thereby improving the reliability of the connection between the shelf and the fixing member 210.

[0063] In some other optional embodiments, a plurality of shelf mounting assemblies 200 are provided, and the shelf 300 is supported on a plurality of shelf mounting assemblies 200, so as to facilitate the assembly of the shelf 300 with the shelf mounting assemblies 200. For example, the portion of the fixing member 210 located in the inner tank body 100 may be provided with a mounting groove, and the shelf 300 is supported in the mounting groove.

[0064] When the shelf fixing assembly 200 provided in this embodiment is assembled on the inner container body 100, the initial state of the fixing member 210 and the snap member 220 is a separated state, and the small end 213 of the fixing member 210 is controlled to pass through the mounting hole 110 in the inner container body 100, and then the snap member 220 is inserted into the small end 213 from one end of the small end 213 until the elastic snap-in portion 221 abuts against the groove wall of the slot 211 on the small end 213, and the edge of the snap body 222 contacts the inner container body 100, so that the shelf mounting assembly 200 is set on the inner container body 100.

[0065] The inner pot provided in this embodiment has a simple structure and a shelf mounting assembly 200 installed in the inner pot body 100, and occupies a small space, so that the inner pot and the cooking equipment using the inner pot have a more beautiful appearance.

[0066] This embodiment also provides a cooking device, such as Figure 7 As shown, the cooking device comprises a rack 300 and the inner pot as described above, and the rack 300 is installed on the inner pot body 100 through the rack mounting assembly 200. The cooking device provided in this embodiment has a high assembly efficiency.

[0067] Optionally, the shelf 300 may include a frame body and an inserting portion, wherein the inserting portion is inserted into the inserting hole 201 of the shelf mounting assembly 200, and the frame body has a slide for supporting a baking tray or other structures.

[0068] Optionally, two opposite inner walls of the inner container may be provided with a shelf installation assembly 200, and two shelves 300 are provided, and the two shelves 300 are respectively arranged on the two opposite inner walls of the inner container.

[0069] The cooking device in this embodiment may be a steamer, an oven, or a steam-bake-in-one machine, which is not limited in this embodiment.

[0070] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention is described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. Inner liner, characterized in that: It comprises an inner container body (100) and a shelf installation component (200), wherein the shelf installation component (200) is arranged on the inner container body (100) in a snap-fit ​​manner, and the shelf installation component (200) is used to install a shelf (300).

2. The liner according to claim 1, characterized in that: The shelf installation assembly (200) comprises a fixing member (210) and a buckle member (220); The inner liner body (100) is provided with a mounting hole (110); the fixing member (210) comprises a large end (212) and a small end (213) which are connected; the radial length of the large end (212) is greater than the aperture of the mounting hole (110); the small end (213) passes through the mounting hole (110) and is engaged with the snap member (220); and the radial length of the snap member (220) is greater than the aperture of the mounting hole (110).

3. The inner container according to claim 2, characterized in that: The small end (213) is provided with a slot (211), and the buckle (220) is sleeved on the small end (213) and axially limited in the slot (211).

4. The inner container according to claim 2, characterized in that: The buckle (220) comprises a buckle body (222) and a plurality of elastic buckle parts (221); the buckle body (222) is annular and sleeved on the fixing member (210); the plurality of elastic buckle parts (221) are arranged on the inner wall of the buckle body (222) at intervals along the circumference of the buckle body (222); a buckle groove (211) is circumferentially opened at the small end (213); and the elastic buckle parts (221) abut against the groove wall of the buckle groove (211).

5. The inner container according to any one of claims 2 to 4, characterized in that: The edge of the snap-fit ​​member (220) contacts the inner liner body (100), the middle portion of the snap-fit ​​member (220) protrudes in a direction away from the inner liner body (100), and the small end (213) passes through the mounting hole (110) and snaps into engagement with the middle portion of the snap-fit ​​member (220).

6. The inner container according to claim 3 or 4, characterized in that: The groove side wall of the clamping groove (211) which is away from the large end (212) in the axial direction of the small end (213) is a first inclined wall (214), and the distance between the first inclined wall (214) and the central axis of the small end (213) gradually increases along the direction away from the large end (212), and the locking member (220) can slide along the first inclined wall (214).

7. The inner container according to claim 3 or 4, characterized in that: The small end (213) is provided with a second inclined wall (215); in the axial direction of the small end (213), the locking groove (211) is located between the second inclined wall (215) and the large end (212); along the direction away from the large end (212), the distance between the second inclined wall (215) and the central axis of the small end (213) gradually decreases, and the locking member (220) can slide along the second inclined wall (215).

8. The inner container according to any one of claims 2 to 4, characterized in that: The buckle (220) is arranged outside the inner container body (100).

9. The inner container according to any one of claims 1 to 4, characterized in that: The shelf installation assembly (200) is provided with a plug hole (201), and the plug hole (201) is used for plugging the shelf (300); or, The shelf installation components (200) are provided in plurality, and the shelf (300) is supported by the plurality of shelf installation components (200).

10. A cooking device, characterized in that It comprises a shelf (300) and an inner container according to any one of claims 1 to 9, wherein the shelf (300) is installed on the inner container body (100) through the shelf installation assembly (200).