drawer box

By incorporating a switchable support mechanism in both the drawer body and the drawer, the problems of traditional drawer boxes being prone to tipping over and sliding automatically are solved, thus improving the stability and safety of the drawer box.

CN224577002UActive Publication Date: 2026-07-31MERIDIAN INT
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
MERIDIAN INT
Filing Date
2025-08-15
Publication Date
2026-07-31

AI Technical Summary

Technical Problem

Traditional drawer boxes are prone to tipping over due to changes in the center of gravity during use, and they can slide automatically on slopes or due to misoperation, posing a safety hazard.

Method used

Design a drawer box by setting wheels on the drawer body and support components on the drawer, and switching the support mode according to the state change to ensure that the drawer body is supported by the drawer in the natural state and by the wheels in the tilted state, thus preventing automatic sliding.

Benefits of technology

It improves the stability and safety of the drawer box, preventing it from sliding automatically on slopes or due to misoperation, and enhances the safety and convenience of opening the drawer.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224577002U_ABST
    Figure CN224577002U_ABST
Patent Text Reader

Abstract

This application provides a drawer box, comprising: a drawer box body having a natural state and a tilted state, with wheels mounted on the drawer box body; when the drawer box body is in the natural state, the bottom of the wheels is not lower than the bottom of the drawer box body; and a drawer disposed within the drawer box body having an extended state and a closed state, with a support component mounted on the drawer; when the drawer is in the extended state and the drawer box body is in the natural state, the bottom of the drawer box body supports the drawer box body, and the support component supports the drawer; when the drawer is in the closed state and the drawer box body is in the tilted state, the wheels support the drawer box body. Thus, without the need for a separate braking device, the drawer box body can be prevented from automatically sliding on slopes or due to accidental operation. The structure is simple, stable, and reliable, improving the safety and stability of the drawer when it is opened.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This application relates to the field of storage tools technology, specifically to a drawer box. Background Technology

[0002] Traditional drawer boxes mainly consist of the drawer body, drawer, guide rails, casters, and pull rod. During use, when the drawer is pulled out, the center of gravity shifts, making the drawer box prone to tipping forward and affecting safety. Existing technology adds support wheels to the bottom of the drawer for support when it's pulled out. However, in practical applications, because the casters on the drawer body and the support wheels at the bottom of the drawer simultaneously support the entire drawer box when it's pulled out, the drawer box can easily slide automatically on slopes or due to misoperation, potentially causing a safety accident. Utility Model Content

[0003] In view of this, this application provides a drawer box with a simple structure, stable and reliable, which can prevent automatic sliding on slopes or due to misoperation.

[0004] To achieve the above objectives, this application provides the following technical solution:

[0005] A drawer box, comprising:

[0006] The drawer box body has a natural state and an inclined state. The drawer box body is equipped with wheels. When the drawer box body is in the natural state, the bottom of the wheels is not lower than the bottom of the drawer box body.

[0007] A drawer, disposed within the drawer box body, has a pulled-out state and a closed state, and a support assembly is provided on the drawer;

[0008] When the drawer is in the pulled-out state and the drawer box body is in the natural state, the bottom of the drawer box body supports the drawer box body, and the support component supports the drawer; when the drawer is in the closed state and the drawer box body is in the tilted state, the wheels support the drawer box body.

[0009] Optionally, when the drawer body is in its natural state, the bottom of the wheels is flush with the bottom of the drawer body.

[0010] Optionally, the support assembly is connected to the drawer via an elastic element, so that the support assembly can provide elastic support to the drawer.

[0011] Optionally, the support assembly is movably connected to the drawer. When the drawer is closed, the support assembly is in a retracted state and hidden relative to the bottom of the drawer; when the drawer is pulled out, the support assembly is in an extended state and protrudes relative to the bottom of the drawer.

[0012] Optionally, the bottom of the drawer is provided with a storage slot, and the support component is connected to the storage slot. When the support component is in a retracted state, it is located inside the storage slot, and when the support component is in an extended state, it is located outside the storage slot.

[0013] Optionally, a guide rail assembly is provided between the drawer and the drawer box body to guide the drawer between the closed state and the pulled-out state.

[0014] Optionally, multiple sets of the guide rail assemblies are provided and arranged vertically on the side of the drawer along the pull-out direction of the drawer.

[0015] Optionally, the wheels are disposed on one side of the drawer body in the closing direction of the drawer; and / or, the support assembly is disposed on one side of the drawer in the pulling-out direction.

[0016] Optionally, the support component may be configured as a support foot or a support wheel.

[0017] Optionally, the drawer body is provided with a pull rod assembly on one side of the drawer in the closing direction.

[0018] The drawer box provided in this application, when the drawer is pulled out and the drawer box body is in its natural state, uses the bottom of the drawer box body to support it instead of the original casters. The support components also support the drawer. The bottom of the drawer box body has a large contact area with the ground, providing stable support without the need for a separate braking device. This prevents the casters from accidentally rolling, thus avoiding automatic sliding on slopes or due to misoperation. The structure is simple, stable, and reliable, improving the safety and stability of the drawer when it is opened. Furthermore, when the drawer is closed and the drawer box body is tilted, the casters are in contact with the ground, supporting the drawer box body. Users can pull the drawer box body using the casters, improving the convenience of moving the drawer box body. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0020] Figure 1 A perspective view of a drawer box with support wheels as the supporting component provided in an embodiment of this application;

[0021] Figure 2 for Figure 1 Side view of the structure shown;

[0022] Figure 3 A perspective view of the support components in the drawer box provided in this application embodiment, which are support legs;

[0023] Figure 4 for Figure 3 Side view of the structure shown;

[0024] Figure 5 A perspective view of a support component extending from a storage slot in a drawer box, provided in an embodiment of this application;

[0025] Figure 6 A perspective view of the support assembly in the drawer box retracted into the storage slot, provided in an embodiment of this application;

[0026] Figure 7 A perspective view of a drawer provided in an embodiment of this application.

[0027] Explanation of reference numerals in the attached figures:

[0028] 1-Drawer box body, 2-Drawer, 7-Rotating wheels, 8-Support wheels, 9-Support feet, 10-Storage slot, 11-Guide rail assembly, 12-Pull rod assembly;

[0029] 101 - Box opening;

[0030] 202-Back panel, 203-Front panel, 204-Bottom panel, 205-Side panel. Detailed Implementation

[0031] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0032] like Figures 1-7As shown, this application embodiment provides a drawer box, including a drawer box body 1 and drawers 2. The drawer box includes a drawer box body 1 and at least one drawer 2 disposed within the drawer box body 1, that is, one or more drawers 2 are disposed within the drawer box body 1. The drawer 2 has a closed state and a pulled-out state, wherein the closed state of the drawer 2 refers to the state in which the drawer 2 is not pulled out from the box opening 101 of the drawer box body 1 and is located inside the drawer box body 1 (e.g., ...). Figure 6 (As shown); the pulled-out state of drawer 2 refers to the state in which drawer 2 is pulled out from the box opening 101 of the drawer box body 1.

[0033] like Figure 1 , 7 As shown, drawer 2 has a back panel 202, a front panel 203, a bottom panel 204, and two side panels 205. The two side panels 205 are connected between the back panel 202 and the front panel 203 to form a square area, which is located above the bottom panel 204. The left-right direction of drawer 2 is the arrangement direction of the two side panels 205. Figure 1 As shown in the X direction, the vertical direction of drawer 2 corresponds to the arrangement of the square area and the base plate 204. Figure 1 As shown in the Z direction, the direction in which drawer 2 is pulled out is from the back panel 202 to the front panel 203 of drawer 2, that is... Figure 1 Y direction shown.

[0034] Drawer 2 is equipped with a support component. When drawer 2 is in the pulled-out state and drawer body 1 is in its natural state, the support component supports drawer 2, and the bottom of drawer body 1 also supports drawer body 1. The support component protrudes downward relative to the bottom of drawer 2, and both the support component and drawer body 1 directly contact the ground, providing support for drawer 2. Specifically, the connection between the support component and drawer 2 can take various forms. For example, the support component can be directly connected to the bottom plate 204 of drawer 2, so that the support component protrudes downward relative to the bottom of drawer 2; or, the support component can be connected to the front plate 203 or side plate 205 of drawer 2, extending downward and with its bottom lower than the bottom plate of drawer 2. By supporting drawer 2 in the pulled-out state, the support component prevents drawer 2 and drawer body 1 from tipping over, improving the safety and stability of drawer 2 in the pulled-out state.

[0035] like Figure 1 , 2As shown, the drawer body 1 is equipped with casters 7, which allow users to pull the drawer body 1 to move, thus improving the ease of transporting the drawer. Specifically, to facilitate the movement of the drawer body 1, a pull rod assembly 12 is provided on the drawer body 1, with the pull rod assembly 12 and the casters 7 located on the same side. The pull rod assembly 12 is located on the side of the drawer body 1 facing the closing direction of the drawer 2 (i.e., the opposite direction of the Y direction). The pull rod assembly 12 is a telescopic sleeve structure, which can be pulled out from the drawer body 1 and retracted into the drawer body 1. By providing the pull rod assembly 12, the lever arm for tilting the drawer body 1 can be lengthened when the pull rod assembly 12 is pulled out, making it easier to switch the drawer body 1 from its natural state to its tilted state. It also provides a higher handle position for the user to hold and pull the drawer.

[0036] The drawer body 1 has a natural state and a tilted state. When the drawer body 1 is in the natural state, it rests naturally on the ground (e.g., ...). Figure 2 , 4 (As shown); The user can apply force to operate the pull rod assembly 12 to tilt the drawer body 1 to one side of the pull rod assembly 12, so that the drawer body 1 switches to the tilted state. At this time, only the travel wheels 7 touch the ground to move the drawer. When the drawer body 1 is in the natural state, the bottom of the travel wheels 7 is not lower than the bottom of the drawer body 1 (that is, the bottom of the travel wheels 7 is flush with the bottom of the drawer body 1, or the bottom of the travel wheels 7 is higher than the bottom of the drawer body 1), so that the bottom of the drawer body 1 is kept in contact with the ground, that is, the bottom of the drawer body 1 supports the drawer body 1 on the ground. When it is necessary to move the drawer, the user can apply force to rotate and tilt the drawer body 1 around the travel wheels 7, so that the drawer body 1 switches to the tilted state. At this time, the travel wheels 7 support the drawer body 1 on the ground, and the bottom of the drawer body 1 is no longer in contact with the ground. The user can easily move the drawer body 1 on the ground by using the travel wheels 7.

[0037] During use, when drawer 2 is pulled out and drawer body 1 is in its natural state, the bottom of drawer body 1 supports the drawer body 1, and the support components support drawer 2. The bottom of drawer body 1 has a large contact area with the ground, and the support effect is stable, eliminating the need for a separate braking device. Since the travel wheels 7 do not support the drawer body 1 when it is in its natural state, compared to existing technologies, this prevents the drawer body 1 from automatically sliding on slopes or due to misoperation. The structure is simple, stable, and reliable, improving the safety and stability of drawer 2 when it is opened. Moreover, when drawer 2 is closed and drawer body 1 is tilted, the travel wheels 7 support the drawer body 1, and the bottom of drawer body 1 is detached from the ground. The user can use the travel wheels 7 to move the drawer body 1, improving the convenience of moving the drawer body 1.

[0038] In the optional solution, the drawer body 1 is in its natural state, and the bottom of the wheels 7 is flush with the bottom of the drawer body 1, so that the bottom of the drawer body 1 and the bottom of the wheels 7 simultaneously touch the ground. When the drawer body 1 needs to be moved, the user only needs to tilt the drawer body 1 at a small angle to lift the bottom of the drawer body 1 off the ground and make the wheels 7 support the drawer body 1, so that the user can pull the drawer body 1 forward by using the wheels 7.

[0039] In addition, when the drawer body 1 is in its natural state, the bottom of the wheels 7 can be higher than the bottom of the drawer body 1, creating a height difference between the bottom of the wheels 7 and the bottom of the drawer body 1, so that the wheels 7 do not contact the ground when the drawer is in its natural state. When the drawer body 1 is on an uneven surface, the bottom of the drawer body 1 can have more contact with the ground, further improving the stability of the drawer body 1 in its natural state and the safety of opening the drawer 2.

[0040] In this design, the wheels 7 are positioned on one side of the drawer body 1 in the closing direction of the drawer 2, such as... Figure 2 , 4As shown, the travel wheel 7 is located at the lower right corner of the drawer body 1, with its right side protruding beyond the right side of the drawer body 1. This allows the travel wheel 7 to move the drawer body 1, while the drawer 2 is pulled out from the left side of the drawer body 1. Thus, when the drawer 2 is pulled out, the drawer 2 and the travel wheel 7 are positioned on opposite sides of the drawer body 1, with a greater distance between them. This provides more stable support for the drawer body 1 in its natural state. The bottom of the drawer body 1, which supports the drawer body 1 in its natural state, is on the same side as the travel wheel 7, further enhancing stability. Furthermore, this design allows the travel wheel 7 to move the drawer body 1 even when it is pulled out, making it more versatile for various applications. Alternatively, in other designs, the travel wheel 7 can be positioned on one side of the drawer body 1 in the direction the drawer 2 is pulled out. In this case, the travel wheel 7 can only move the drawer body 1 when it is closed, preventing the drawer 2 from opening during the movement of the drawer body 1 and creating a safety hazard.

[0041] In some embodiments, a guide rail assembly 11 is provided between drawer 2 and drawer body 1. This guide rail assembly 11 is used to guide and support drawer 2 when it is pulled out and closed, so as to ensure the stability of the force between drawer 2 and drawer body 1. Specifically, the guide rail of the guide rail assembly 11 can be set on the side plate 205 of drawer 2 or on the bottom plate 204 of drawer 2, and slidably connected to drawer body 1. In addition to making the drawer 2 slide more smoothly on drawer body 1, the guide rail assembly 11 can also strengthen the structural strength. For example, when drawer body 1 is placed on uneven bearing positions such as a high platform, the rear of a vehicle, or a construction site, relying solely on the bottom of drawer body 1 to contact the bearing position can easily cause the bottom of drawer 2 to be suspended when it is opened. In this case, by connecting drawer 2 and drawer body 1 through the guide rail assembly 11, the collapse or breakage of drawer 2 due to its suspended bottom can be prevented, thus having high structural stability. In other words, on a flat surface, the support assembly of drawer 2 can support the weight of the items inside drawer 2; on uneven surfaces, the guide rail assembly 11 can support the weight of the items inside drawer 2.

[0042] The guide rail assembly 11 has multiple guide rails arranged in parallel, such as two or three guide rails. These guide rails are arranged perpendicular to the pull-out direction of the drawer 2, and all guide rails are mounted on the side panel 205 of the drawer 2. Specifically, for example... Figure 2 , 4As shown, each of the two side panels 205 of drawer 2 is equipped with two horizontally extending guide rails arranged vertically. This combination of multiple guide rails further enhances the load-bearing capacity of drawer 2 and improves the safety of pulling out drawer 2. Here, the guide rail assembly 11 can be made of three metal rails.

[0043] The support assembly is connected to drawer 2 via an elastic element, such as a shock-absorbing spring. When drawer 2 is pulled out, the elastic element acts between the support assembly and drawer 2 and undergoes elastic deformation to provide elastic support for drawer 2. This can compensate for installation errors of the support assembly and ensure that the bottom of the support assembly is on the same horizontal plane as the bottom of the drawer body 1.

[0044] It should be noted that the support component can also be directly connected to drawer 2. When drawer 2 is pulled out, if there are no items inside drawer 2, the bottom of the support component can be slightly higher than the bottom of drawer body 1 (that is, the bottom of the support component and the bottom of drawer body 1 form a height difference). After drawer 2 is filled with items, the center of gravity of drawer 2 shifts, which can compensate for the above height difference and make the support component touch the ground.

[0045] In this embodiment, the support component can be configured as a support foot 9 or a support wheel 8 to support the drawer 2. This embodiment lists three different support component structures, which will be described in detail below.

[0046] [First Embodiment]

[0047] like Figure 1-2 As shown, in the first embodiment, the support component is configured as support wheels 8, with two support wheels 8 rotatably connected to the drawer 2. When the drawer 2 moves in the pull-out direction, the support wheels 8 can drive the drawer 2 to slide, thereby making it easier and more convenient to pull out the drawer 2.

[0048] The support wheel 8 is located on one side of the drawer 2 in the pull-out direction. For example... Figure 2 As shown, the support wheel 8 is located at the lower left corner of the drawer 2, and the bottom of the support wheel 8 protrudes from the bottom of the drawer 2. When the drawer 2 is pulled out, the support wheel 8 is far from the drawer body 1. The support wheel 8 and the drawer body 1 are respectively supported at both ends of the drawer 2, and the support force of the drawer 2 is relatively balanced and stable.

[0049] Specifically, the front panel 203 and bottom panel 204 of drawer 2 are provided with mounting grooves for the support wheel 8 to be embedded. The support wheel 8 is connected to the two opposite side walls of the mounting groove by a pivot, that is, the support wheel 8 is connected to the side panel 205 and bottom panel 204 by a pivot. At the same time, the bottom of the support wheel 8 is lower than the bottom panel 204 so that the support wheel 8 protrudes downward relative to the bottom of drawer 2.

[0050] [Second Embodiment]

[0051] like Figure 3-4 As shown, in the second embodiment, the support component is configured as support feet 9, with two support feet 9 protruding downwards relative to the bottom of drawer 2. When drawer 2 is in the pulled-out state, the support feet 9 support drawer 2. Since the contact between support feet 9 and the ground is relatively stable, the support stability of drawer 2 can be improved, preventing drawer 2 from sliding unnecessarily relative to drawer box body 1, which helps to keep drawer 2 in the pulled-out state.

[0052] The support foot 9 is located on one side of the drawer 2 in the pull-out direction. For example... Figure 4 As shown, the support foot 9 is located at the lower left corner of drawer 2, and the bottom of the support foot 9 protrudes from the bottom of drawer 2. When drawer 2 is pulled out, the distance between the support foot 9 and the drawer body 1 is relatively large. The support foot 9 and the drawer body 1 support the two ends of drawer 2 respectively, and the support force on drawer 2 is relatively balanced and stable. Specifically, the support foot 9 is connected to the front panel 203 of the drawer. For example, the support foot 9 and the front panel 203 are integrally formed, which helps to improve the connection stability of the support foot 9.

[0053] [Third Embodiment]

[0054] like Figure 5-6 As shown, in the third embodiment, the support component is movably connected to the drawer 2. Here, the movement of the support component relative to the drawer 2 can be set as a flipping action, a telescopic action, or a sliding action, etc. By moving the support component relative to the drawer 2, the support component can switch between a retracted state and an extended state. When the support component is in the retracted state, it is hidden relative to the bottom of the drawer 2, so that the bottom of the support component is not lower than the bottom of the drawer 2, facilitating the movement of the drawer 2 in the closing direction. When the support component is in the extended state, it protrudes downward relative to the bottom of the drawer 2, so that the bottom of the support component is lower than the bottom of the drawer 2, facilitating the support of the drawer 2.

[0055] When drawer 2 moves in the closing direction, drawer 2 can drive the support component to switch from the extended state to the retracted state, so as to avoid the support component from hindering the movement of drawer 2; when drawer 2 moves in the pulling direction to the pulling-out state, the support component switches from the retracted state to the extended state, so that the support component supports drawer 2.

[0056] The drawer 2 has a storage slot 10 at its bottom. This slot 10 is located on one side of the drawer 2 in the pull-out direction, at a corner, which facilitates processing and does not affect the ability to hold or display items. A support component is connected within the storage slot 10. When the support component is retracted, it is located inside the storage slot 10; when it is extended, it is located outside the storage slot 10. The state of the support component is changed by switching between its position inside and outside the storage slot 10.

[0057] Here, the support component is flipped and connected to the side wall of the storage slot 10 in the closing direction of the drawer 2. A spring is provided between the support component and the drawer 2. During the closing process of the drawer 2, the support component abuts against the drawer body 1, causing the spring to deform. At the same time, the support component is embedded in the storage slot 10. During the opening process of the drawer 2, the spring returns to its original shape and drives the support component to extend out of the storage slot 10, so that the support component supports the drawer 2.

[0058] Specifically, the support assembly includes two support wheels 8 (or support feet 9) and a wheel frame connecting the two support wheels 8. The wheel frame is rotatably connected within the storage slot 10 of the drawer 2. A spring is installed between the wheel frame and the storage slot 10, causing the wheel frame to rotate relative to the storage slot 10, thus switching the support assembly between a retracted and extended state. During the closing of the drawer 2, the support wheels 8 abut against the drawer body 1, causing the spring to deform, and the support wheels 8 embed into the storage slot 10. During the opening of the drawer 2, the spring returns to its original shape, causing the wheel frame and support wheels 8 to extend out of the storage slot 10, thus providing support for the drawer 2.

[0059] The basic principles of this application have been described above with reference to specific embodiments. However, it should be noted that the advantages, benefits, and effects mentioned in this application are merely examples and not limitations, and should not be considered as essential features of each embodiment of this application. Furthermore, the specific details disclosed above are for illustrative and facilitative purposes only, and are not limitations. These details do not limit the application to the necessity of employing the aforementioned specific details for implementation.

[0060] The block diagrams of devices, apparatuses, devices, and systems involved in this application are merely illustrative examples and are not intended to require or imply that they must be connected, arranged, or configured in the manner shown in the block diagrams. As those skilled in the art will recognize, these devices, apparatuses, devices, and systems can be connected, arranged, and configured in any manner. Words such as “comprising,” “including,” “having,” etc., are open-ended terms meaning “including but not limited to,” and are used interchangeably with them. The terms “or” and “and” as used herein refer to the terms “and / or,” and are used interchangeably with them unless the context clearly indicates otherwise. The term “such as” as used herein refers to the phrase “such as but not limited to,” and is used interchangeably with it.

[0061] It should also be noted that in the apparatus, equipment, and methods of this application, the components or steps can be disassembled and / or recombined. These disassemblies and / or recombinations should be considered as equivalent solutions of this application.

[0062] The above description of the disclosed aspects is provided to enable any person skilled in the art to make or use this application. Various modifications to these aspects will be readily apparent to those skilled in the art, and the general principles defined herein can be applied to other aspects without departing from the scope of this application. Therefore, this application is not intended to be limited to the aspects shown herein, but rather to be accorded the widest scope consistent with the principles and novel features disclosed herein.

[0063] It should be understood that the qualifiers “first,” “second,” “third,” “fourth,” “fifth,” and “sixth” used in the description of the embodiments of this application are only used to more clearly illustrate the technical solutions and are not intended to limit the scope of protection of this application.

[0064] The above description has been given for purposes of illustration and description. Furthermore, this description is not intended to limit the embodiments of this application to the forms disclosed herein. Although numerous exemplary aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, alterations, additions, and sub-combinations thereof.

Claims

1. A drawer case characterized by comprising: include: The drawer box body has a natural state and an inclined state. The drawer box body is equipped with wheels. When the drawer box body is in the natural state, the bottom of the wheels is not lower than the bottom of the drawer box body. A drawer, disposed within the drawer box body, has a pulled-out state and a closed state, and a support assembly is provided on the drawer; When the drawer is in the pulled-out state and the drawer box body is in the natural state, the bottom of the drawer box body supports the drawer box body, and the support component supports the drawer; when the drawer is in the closed state and the drawer box body is in the tilted state, the wheels support the drawer box body.

2. The drawer case according to claim 1, wherein When the drawer box body is in its natural state, the bottom of the wheels is flush with the bottom of the drawer box body.

3. The drawer case of claim 1, wherein, The support assembly is connected to the drawer via an elastic element, so that the support assembly can provide elastic support to the drawer.

4. The drawer case of claim 1, wherein, The support assembly is movably connected to the drawer, and when the drawer is closed, the support assembly is in a retracted state and hidden relative to the bottom of the drawer; When the drawer is in the pulled-out state, the support assembly is in the extended state and protrudes relative to the bottom of the drawer.

5. The drawer case of claim 4, wherein, The bottom of the drawer is provided with a storage slot, and the support component is connected to the storage slot. When the support component is in the retracted state, it is located inside the storage slot, and when the support component is in the extended state, it is located outside the storage slot.

6. The drawer case of claim 1, wherein, A guide rail assembly is provided between the drawer and the drawer box body to guide the drawer between the closed state and the pulled-out state.

7. The drawer case of claim 6, wherein, Multiple sets of guide rail assemblies are provided and arranged vertically on the side of the drawer along the direction in which the drawer is pulled out.

8. The drawer case of claim 1, wherein, The wheels are disposed on one side of the drawer body in the closing direction of the drawer; and / or, the support assembly is disposed on one side of the drawer in the pulling-out direction.

9. The drawer case of claim 1, wherein, The support components are configured as support feet or support wheels.

10. The drawer case of claim 1, wherein, The drawer body is provided with a pull rod assembly on one side of the drawer in the closing direction.