Storage equipment

Abstract

The invention discloses storage equipment, and belongs to the technical field of refrigeration. The storage equipment comprises a cabinet body, a door body, at least one placing box group and at least one connecting rod assembly, wherein the door body is mounted on the cabinet body; the placing box group comprises at least two box bodies; the connecting rod assemblies are installed among the cabinet body, the door body and the containing box sets so that the corresponding containing box sets can be in a folded state and an unfolded state. Wherein when the placing box set is in the storage state, all the corresponding box bodies are arranged at intervals in the vertical direction, when the placing box set is in the unfolding state, all the corresponding box bodies are arranged at intervals in the vertical direction, and at least parts of every two adjacent box bodies are arranged in a staggered mode in the horizontal direction. By arranging the connecting rod assemblies, the corresponding containing box sets have the containing state and the opening state, the function of containing objects in order can be achieved, the objects can be taken out from the gaps between the box bodies in the horizontal direction when the containing box sets are in the unfolding state, taking and using are convenient and efficient, and the experience feeling of a user is improved.

Description

Technical Field

[0001] The present application belongs to the field of refrigeration technology, and in particular relates to a storage device. Background Art

[0002] When using a horizontal freezer, users often place and retrieve items from above the cabinet opening. Since items are usually stacked inside the freezer, it is not only difficult to properly classify and place items inside the cabinet, but also necessary to take out all the items above before reaching the items below. This is time-consuming and laborious, making it difficult to retrieve the required items in time, which affects the user experience. Summary of the Invention

[0003] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application proposes a storage device, which, by providing a connecting rod assembly, enables a corresponding placement box group to have a storage state and an open state. When the placement box group is in the storage state, it is arranged in sequence from top to bottom through at least two box bodies, thereby playing the role of storing items neatly and orderly. When the placement box group is in the open state, items can be taken from the horizontal gap between the box bodies, which is convenient and efficient to take, thereby improving the user experience.

[0004] In a first aspect, the present application provides a storage device, comprising:

[0005] Cabinet;

[0006] A door body, the door body being installed on the cabinet body;

[0007] At least one placement box group, the placement box group including at least two box bodies;

[0008] At least one connecting rod assembly is installed between the cabinet body, the door body and the placement box group, and the connecting rod assembly and the placement box group correspond one to one, so that the corresponding placement box group has a storage state and an expanded state; wherein, when the placement box group is in the storage state, all the corresponding box bodies are spaced apart in the up-down direction, and when the placement box group is in the expanded state, all the corresponding box bodies are spaced apart in the up-down direction, and two adjacent box bodies are at least partially staggered in the horizontal direction.

[0009] According to the storage device of the present application, on the one hand, since at least two box bodies are provided, when the placement box group is in a storage state under the action of the connecting rod assembly, that is, the box bodies corresponding to each placement box group are arranged in sequence from top to bottom, thereby being able to store items neatly and orderly; on the other hand, when it is necessary to take items located in the box body arranged below, the placement box group is placed in an expanded state through the connecting rod assembly, so that items can be taken from the gap along the horizontal direction between the box bodies, which is convenient and efficient to take, and improves the user experience.

[0010] According to one embodiment of the present application, the connecting rod assembly includes:

[0011] a first connecting rod, at least one of which is provided between two adjacent box bodies, and two ends of the first connecting rod are hinged to the corresponding two box bodies respectively;

[0012] a second connecting rod, each box body corresponding to at least one second connecting rod, one end of the second connecting rod being hinged to the box body, and the other end being hinged to the cabinet body;

[0013] A third connecting rod, one end of which is hinged to one of the box bodies, and the other end of which is hinged to the door body.

[0014] According to an embodiment of the present application, the lengths of the plurality of second connecting rods gradually decrease from top to bottom, and the hinge points where the second connecting rods are connected to the cabinet body are located in the same horizontal plane.

[0015] According to one embodiment of the present application, one end of the third connecting rod is hinged to the box body located at the bottom, and the other end is hinged to the door body.

[0016] According to one embodiment of the present application, a hinge point where the third connecting rod is connected to the box body and a hinge point where the box body is connected to the first connecting rod are located on the same axis.

[0017] According to one embodiment of the present application, it further includes:

[0018] A connecting portion, provided on the door body;

[0019] a mating portion, provided on the connecting rod assembly;

[0020] A switch is configured to connect the connecting portion and the matching portion when a trigger signal is received, so that the door body and the placement box group move synchronously.

[0021] According to one embodiment of the present application, one of the connecting portion and the mating portion includes an electromagnetic coil, the other of the connecting portion and the mating portion includes a magnet, and the switch is configured to control the on and off of power to the electromagnetic coil.

[0022] According to one embodiment of the present application, it further includes:

[0023] A handle is installed on the door body, and the switch is integrated into the handle.

[0024] According to one embodiment of the present application, it further includes:

[0025] An elastic member, one end of which is connected to the connecting rod assembly, and the other end of which is connected to the matching portion, is used to drive the matching portion to reset.

[0026] According to one embodiment of the present application, the box body is provided with a gripping portion for applying external force.

[0027] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become obvious from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0029] Figure 1 It is a structural diagram of the storage device provided in an embodiment of the present application;

[0030] Figure 2 This is a cross-sectional view of a storage device in which the box set is placed in the storage state provided by an embodiment of the present application. Figure 1 ;

[0031] Figure 3 This is a cross-sectional view of a storage device in which the box set is placed in the storage state provided by an embodiment of the present application. Figure 2 ;

[0032] Figure 4 is a cross-sectional view of a storage device in which a placement box group provided by an embodiment of the present application is in an unfolded state;

[0033] Figure 5 This is a structural diagram of a storage device with a hidden cabinet body and cabinet doors provided in an embodiment of the present application.

[0034] Reference numerals:

[0035] 100, cabinet body; 110, cabinet opening; 120, accommodating cavity;

[0036] 200, door body;

[0037] 310, box body; 311, avoidance groove;

[0038] 400, connecting rod assembly; 410, first connecting rod; 420, second connecting rod; 430, third connecting rod; 440, rotating shaft;

[0039] 500, connecting portion; 600, mating portion; 700, switch;

[0040] 800. Handle. DETAILED DESCRIPTION

[0041] The following describes in detail embodiments of the present application. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application and are not to be construed as limiting the present application.

[0042] Reference below Figure 1-Figure 5 The storage device provided in an embodiment of the present application is described, and the storage device includes a cabinet body 100, a door body 200, at least one placement box group and at least one connecting rod assembly 400.

[0043] The door body 200 is installed on the cabinet body 100. The materials of the cabinet body 100 and the cabinet door include but are not limited to hard plastic, stainless steel, aluminum alloy or titanium alloy.

[0044] It can be understood that one side of the door body 200 is pivotally connected to the cabinet body 100 so that the other side of the door body 200 can selectively abut the cabinet body 100, thereby realizing that the door body 200 has two states of open and closed, that is, the door body 200 opens the cabinet opening 110 in the open state to allow the user to take items from the storage cavity 120, and the door body 200 closes the cabinet opening 110 in the closed state to ensure the sealing of the storage cavity 120.

[0045] In this embodiment, the cabinet body 100 has a accommodating cavity 120 with the cabinet opening 110 facing upward, which facilitates the user to place and remove items. Under the action of gravity of the door body 200, the sealing of the cabinet opening 110 can be further improved. It should be noted that the number, shape, and specific distribution of the accommodating cavities 120 and the cabinet opening 110 can be designed according to actual conditions. The door body 200 and the cabinet opening 110 correspond one-to-one, and the shape and size of the door body 200 can be designed according to the cabinet opening 110. This embodiment does not impose any specific restrictions on this.

[0046] It should be noted that the storage devices in the embodiments can be understood as refrigerated storage devices in a broad sense, including but not limited to refrigerators, freezers, display cabinets, beverage cabinets, wine cabinets, cold storage cabinets, and refrigerated vending machines. Storage devices have diverse structural forms and a wide range of applications. As a specific example, a refrigerator is used as an example in the embodiments of this application. Since the cabinet opening 110 in this embodiment faces upward, the refrigerator is a horizontal refrigerator.

[0047] The placement box set includes at least two box bodies 310. The material of the box body 310 includes but is not limited to hard plastic, stainless steel, aluminum alloy or titanium alloy.

[0048] In this embodiment, the box body 310 is a structure with an open top and a hollow interior, so as to be able to store and limit items. It should be noted that the number, size and shape of the box body 310 can be designed according to actual needs, and this embodiment does not impose specific restrictions on this.

[0049] The connecting rod assembly 400 is installed between the cabinet body 100, the door body 200 and the placement box group, and the connecting rod assembly 400 corresponds to the placement box group one by one, so that the corresponding placement box group has a storage state and an expanded state; wherein, when the placement box group is in the storage state, all corresponding box bodies 310 are spaced apart in the vertical direction, and when the placement box group is in the expanded state, all corresponding box bodies 310 are spaced apart in the vertical direction, and adjacent two box bodies 310 are at least partially staggered in the horizontal direction. It should be noted that the distance between each adjacent two placement box groups in the vertical direction and the distance between them in the horizontal direction when expanded can be designed according to actual needs, and this embodiment does not impose specific restrictions on this.

[0050] It can be understood that, on the one hand, since at least two box bodies 310 are provided, when the placement box group is in the storage state under the action of the connecting rod assembly 400, that is, the box bodies 310 corresponding to each placement box group are arranged in sequence from top to bottom in the accommodating cavity 120, thereby being able to store items in an orderly manner; on the other hand, when it is necessary to take items in the box body 310 arranged below, the placement box group is placed in the expanded state and at least partially located outside the accommodating cavity 120 through the connecting rod assembly 400, so that items can be taken from the gap along the horizontal direction between the box bodies 310, which is convenient and efficient, and improves the user experience.

[0051] According to the storage device provided in the embodiment of the present application, the corresponding placement box group has a storage state and an open state by setting the connecting rod assembly 400, so that when the placement box group is in the storage state, it is arranged in sequence from top to bottom through at least two box bodies 310, so that it can play a role in storing items neatly and orderly. When the placement box group is in the unfolded state, items can be taken from the gap between the box bodies 310 along the horizontal direction, which is convenient and efficient to take, thereby improving the user experience.

[0052] In some embodiments, as Figures 3 to 5As shown, the connecting rod assembly 400 includes a first connecting rod 410, a second connecting rod 420, and a third connecting rod 430. At least one first connecting rod 410 is provided between each of two adjacent boxes 310. The two ends of the first connecting rod 410 are respectively hinged to the corresponding two boxes 310. Each box 310 corresponds to at least one second connecting rod 420. One end of the second connecting rod 420 is hinged to the box 310 and the other end is hinged to the cabinet 100. One end of the third connecting rod 430 is hinged to one of the boxes 310 and the other end is hinged to the door 200. The materials of the first connecting rod 410, the second connecting rod 420, and the third connecting rod 430 include, but are not limited to, hard plastic, stainless steel, aluminum alloy, or titanium alloy.

[0053] For the sake of convenience, the hinge point between each first connecting rod 410 and the box body 310 is the first hinge point, the hinge point between each second connecting rod 420 and the cabinet body 100 is the second hinge point, the hinge point between each third connecting rod 430 and the door body 200 is the third hinge point, and the box body 310 hinged to the door body 200 is the driving box body 310.

[0054] It should be noted that when the box group needs to be switched from the storage state to the unfolded state, the driving box body 310 rotates clockwise with the first hinge point as the center. At the same time, since the driving box body 310 and the adjacent box body 310 are connected by the first connecting rod 410, the box body 310 adjacent to the driving box body 310 rotates counterclockwise with the first hinge point of the driving box body 310 as the center. In addition, each box body 310 is hinged to the cabinet body 100, so each box body 310 rotates counterclockwise with the second hinge point as the center until the two adjacent box bodies 310 are spaced apart in the vertical direction and at least partially staggered in the horizontal direction. Similarly, when the box group needs to be switched from the expanded state to the stored state, the driving box body 310 rotates counterclockwise around the first hinge point. At the same time, since the driving box body 310 and the adjacent box body 310 are connected by the first connecting rod 410, the box body 310 adjacent to the driving box body 310 rotates clockwise around the first hinge point of the driving box body 310. In addition, each box body 310 is hinged to the cabinet body 100, so each box body 310 rotates clockwise around the second hinge point until all the box bodies 310 are spaced apart in the up and down directions, and the projections of the two adjacent box bodies 310 in the up and down directions completely overlap.

[0055] It is understood that by providing at least one first connecting rod 410 between two adjacent box bodies 310, and by hingedly connecting each box body 310 to the inner wall of the cabinet body 100 via a third connecting rod 430, the relative positions of the two adjacent box bodies 310 in the stored state and the deployed state are fixed, ensuring that there is no interference between the adjacent box bodies 310 when switching between the stored state and the deployed state. Furthermore, by hingedly connecting one of the box bodies 310 to the inner wall of the door body 200 via the first connecting rod 410, not only can the support strength of the box body 310 be further improved, but also the box body 310 can be driven to move synchronously when the door body 200 is opened or closed, realizing the automatic switching of the placement box group between the stored state and the deployed state, thus avoiding the need for the user to manually apply external force, saving time and effort, and further improving the user experience.

[0056] In this embodiment, Figure 2 and Figure 3 As shown, there is one placement box group, two box bodies 310, one connecting rod assembly 400, two third connecting rods 430, and multiple first connecting rods 410 and second connecting rods 420, that is, each box body 310 is provided with a first connecting rod 410 and a second connecting rod 420 on both sides along the length direction of the cabinet 100, and the driving box body 310 is also provided with a third connecting rod 430 on both sides along the length direction of the cabinet 100, so that each box body 310 is hinged to the two inner side surfaces of the cabinet 100, so as to ensure the support strength of the placement box group.

[0057] Of course, in other embodiments, at least two placement box groups may be provided, that is, each box body 310 is hinged to only one side of the cabinet body 100, and each placement box group is hinged to different sides of the cabinet body 100, so that each placement box group can be unfolded in different directions, further improving the classification and storage effect of the entire storage device.

[0058] In some embodiments, as Figure 3 and Figure 4 As shown, the lengths of the plurality of second connecting rods 420 gradually decrease from top to bottom, and the hinge points where the second connecting rods 420 are connected to the cabinet body 100 are located in the same horizontal plane.

[0059] It is understood that because all second hinge points are located on the same horizontal plane and the lengths of the second connecting rods 420 connecting different boxes 310 gradually decrease from top to bottom, it is possible to ensure that when the box group is in the stored and deployed states, two adjacent boxes 310 are spaced apart in the vertical direction, and when the box group is in the deployed state, two adjacent boxes 310 are at least partially offset in the horizontal direction. It should be noted that the length difference between two adjacent second connecting rods 420 in the vertical direction can be designed according to actual needs and is not specifically limited in this embodiment.

[0060] In some embodiments, as Figure 3 and Figure 4 As shown, one end of the third connecting rod 430 is hinged to the box body 310 located at the bottom, and the other end is hinged to the door body 200.

[0061] It is understandable that the driving box body 310 is at the bottom, so that when the placement box group switches between the expanded state and the stored state, it can drive the adjacent box bodies 310 to move from bottom to top, ensuring the stability and smoothness of the movement of the entire placement box group.

[0062] In some embodiments, as Figure 3 and Figure 4 As shown, the hinge point where the third link 430 is connected to the box body 310 and the hinge point where the same box body 310 is connected to the first link 410 are located on the same axis.

[0063] It is understandable that by arranging the hinge point on the driving box body 310 connected to the third connecting rod 430 and the hinge point on the driving box body 310 connected to the first connecting rod 410 to be located on the same axis, the structure of the entire connecting rod assembly 400 is made more compact, thereby further improving space utilization.

[0064] In some implementations, such as Figure 1 and Figure 5 As shown, the storage device also includes a connecting part 500, a matching part 600 and a switch 700. The connecting part 500 is arranged on the door body 200; the matching part 600 is arranged on the connecting rod assembly 400; the switch 700 is configured to connect the connecting part 500 and the matching part 600 when a trigger signal is received, so that the door body 200 and the placement box group move synchronously.

[0065] It can be understood that the connecting portion 500 is arranged on the inner wall of the door body 200, and the matching portion 600 is arranged at the hinge point where the third connecting rod 430 is connected to the door body 200, that is, when the user only needs to take out the items placed in the top box body 310, since there is no need to switch the placement box group from the storage state to the expanded state, since the connecting portion 500 and the matching portion 600 are not connected, that is, there is no connection between the placement box group and the door body 200, even if the user opens the door body 200, the placement box group is still in the storage state; when the user needs to take out the items placed in the box body 310 below, the connecting portion 500 and the matching portion 600 are connected through the switch 700, that is, the placement box group and the door body 200 are connected through the third connecting rod 430, so the user opens the door body 200 and the placement box group switches from the storage state to the expanded state at the same time, further improving the flexibility of the storage device and improving the user experience.

[0066] In some implementations, such as Figure 5As shown, one of the connecting portion 500 and the mating portion 600 includes an electromagnetic coil, the other of the connecting portion 500 and the mating portion 600 includes a magnet, and the switch 700 is configured to control the on and off of the electromagnetic coil.

[0067] It can be understood that the switch 700 includes an electromagnetic switch 700. The user can turn on the electromagnetic switch 700 to energize the electromagnetic coil, generate an attractive force between the electromagnetic coil and the magnet, and cause the magnet to drive the third connecting rod 430 close to the door body 200, so that the box group can be automatically switched from the storage state to the expanded state when the door body 200 is open; when the door body 200 is closed, the box group can be automatically switched from the expanded state to the storage state, and before the door body 200 is opened next time, only the items in the top box body 310 need to be taken out, and the electromagnetic switch 700 is turned off to lose the attractive force between the electromagnetic coil and the magnet, so that the box group is still in the storage state when the door body 200 is opened.

[0068] In this embodiment, Figure 1 and Figure 5 As shown, the connecting part 500 includes an electromagnetic coil, and a first mounting groove is opened on the inner wall of the door body 200. The electromagnetic coil is installed in the first mounting groove. Under the action of attraction, the magnet at least partially extends into the first mounting groove to be magnetically connected with the electromagnetic coil, so as to facilitate wiring while ensuring the aesthetics of the storage device.

[0069] In some implementations, such as Figure 1 As shown, the storage device also includes a handle 800, which is mounted on the door body 200, and the switch 700 is integrated into the handle 800. The material of the handle 800 includes, but is not limited to, hard plastic, stainless steel, aluminum alloy, or titanium alloy. The connection method between the handle 800 and the door body 200 includes, but is not limited to, snap connection, threaded connection, and welding. It should be noted that the size and shape of the handle 800 can be designed according to actual needs, and this embodiment is not limited to this.

[0070] It is understood that the handle 800 is mounted on the side of the door 200 away from the pivot connection with the cabinet 100, so that the user can open and close the door 200 conveniently and in accordance with ergonomics. At the same time, the switch 700 is integrated into the handle 800, which is not only convenient for user operation but also makes the storage device more compact.

[0071] In some implementations, the storage device further includes an elastic member, one end of which is connected to the connecting rod assembly 400 and the other end of which is connected to the mating portion 600, for driving the mating portion 600 to reset. The elastic member includes but is not limited to a spring.

[0072] It is understandable that if Figure 5As shown, the third connecting rod 430 and the door body 200 are rotatably connected via a rotating shaft 440. A second mounting slot is provided on the side of the rotating shaft 440 close to the door body 200. One end of the elastic member is mounted in the second mounting slot, and the other end is connected to one end of the magnet, so that the magnet at least partially slides with the second mounting slot under the action of the rebound force of the elastic member. That is, when the electromagnetic coil is energized, the end of the magnet away from the elastic member causes the elastic member to deform and approach the electromagnetic coil, thereby achieving hinged connection between the third connecting rod 430 and the door body 200 and the drive box body 310, respectively. When the electromagnetic coil is de-energized, the magnet moves away from the electromagnetic coil under the action of the rebound force of the elastic member, thereby achieving separation of the third connecting rod 430 from the door body 200.

[0073] In some implementations, such as Figure 5 As shown, the box body 310 is provided with a gripping portion for applying external force.

[0074] It can be understood that by providing a grip portion on the box body 310, it is not only convenient for users to disassemble and assemble the box body 310, but also convenient to apply external force to the box body 310 through the grip portion in the event of an emergency power outage, so as to manually realize the switching of the box group between the storage state and the unfolded state.

[0075] In this embodiment, Figure 5 As shown, the grip portion includes avoidance grooves 311 opened on both sides of the box body 310, which not only improves the aesthetics but also reduces the weight of the box body 310. It should be noted that the size and shape of the avoidance grooves 311 can be designed according to actual needs, and this embodiment is not limited to this.

[0076] In this embodiment, Figure 5 As shown, the avoidance groove 311 and the first connecting rod 410 are located on the same side of the box body 310 for user convenience.

[0077] The terms "first," "second," and the like in the specification and claims of this application are used to distinguish similar objects, and are not used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of this application can be implemented in an order other than that illustrated or described herein, and that the objects distinguished by "first," "second," and the like are generally of the same type, and do not limit the number of objects; for example, the first object can be one or more. In addition, the term "and / or" in the specification and claims refers to at least one of the connected objects, and the character " / " generally indicates that the objects connected are in an "or" relationship.

[0078] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0079] In the description of this application, "first feature" and "second feature" may include one or more of the features.

[0080] In the description of this application, “plurality” means two or more.

[0081] In the description of the present application, a first feature being “on” or “under” a second feature may include the first and second features being in direct contact with each other, or the first and second features being in contact with each other not directly but via another feature therebetween.

[0082] In the description of this application, a first feature “on”, “above” and “above” a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature.

[0083] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0084] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and intent of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A storage device, characterized in that: include: Cabinet; A door body, the door body being installed on the cabinet body; At least one placement box group, the placement box group including at least two box bodies; At least one connecting rod assembly is installed between the cabinet body, the door body and the placement box group, and the connecting rod assembly and the placement box group correspond one to one, so that the corresponding placement box group has a storage state and an expanded state; wherein, when the placement box group is in the storage state, all the corresponding box bodies are spaced apart in the up-down direction, and when the placement box group is in the expanded state, all the corresponding box bodies are spaced apart in the up-down direction, and two adjacent box bodies are at least partially staggered in the horizontal direction.

2. The storage device according to claim 1, characterized in that: The connecting rod assembly comprises: a first connecting rod, at least one of which is provided between two adjacent box bodies, and two ends of the first connecting rod are hinged to the corresponding two box bodies respectively; a second connecting rod, each box body corresponding to at least one second connecting rod, one end of the second connecting rod being hinged to the box body, and the other end being hinged to the cabinet body; A third connecting rod, one end of which is hinged to one of the box bodies, and the other end of which is hinged to the door body.

3. The storage device according to claim 2, characterized in that: From top to bottom, the lengths of the plurality of second connecting rods gradually decrease, and the hinge points where the second connecting rods are connected to the cabinet body are located in the same horizontal plane.

4. The storage device according to claim 2, characterized in that: One end of the third connecting rod is hinged to the box body located at the bottom, and the other end is hinged to the door body.

5. The storage device according to claim 2, characterized in that: The hinge point where the third connecting rod is connected to the box body and the hinge point where the box body is connected to the first connecting rod are located on the same axis.

6. The storage device according to any one of claims 1 to 5, characterized in that: Also includes: A connecting portion, provided on the door body; a mating portion, provided on the connecting rod assembly; A switch is configured to connect the connecting portion and the matching portion when a trigger signal is received, so that the door body and the placement box group move synchronously.

7. The storage device according to claim 6, characterized in that: One of the connecting portion and the mating portion includes an electromagnetic coil, the other of the connecting portion and the mating portion includes a magnet, and the switch is configured to control on and off power to the electromagnetic coil.

8. The storage device according to claim 7, characterized in that: Also includes: A handle is installed on the door body, and the switch is integrated into the handle.

9. The storage device according to claim 6, characterized in that: Also includes: An elastic member, one end of which is connected to the connecting rod assembly, and the other end of which is connected to the matching portion, is used to drive the matching portion to reset.

10. The storage device according to any one of claims 1 to 5, characterized in that: The box body is provided with a gripping portion for applying external force.

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