storage cabinet

Abstract

The application discloses a storage cabinet and belongs to the technical field of refrigeration equipment, and aims to solve the technical problem of complex structure of related storage cabinets. The storage cabinet is characterized in that: the lifting assembly is in one-to-one correspondence with the shelves; the lifting assembly comprises a lifting shell, a locking mechanism and a sliding mechanism; each shelf is connected to the corresponding lifting shell; in the use state, the locking mechanism locks the lifting shell and the support frame, so that the shelf is kept at a set height; when the height of the shelf needs to be adjusted, the locking mechanism unlocks the lifting shell and the support frame, and the sliding mechanism is slid to the engagement position, so that the matching structure and the engagement structure are engaged; at this time, the driving device is started, the driving device drives the driving member to move, the driving member drives the sliding mechanism, the lifting shell and the shelf to ascend or descend along the height direction, so as to adjust the height of the shelf; the height of multiple shelves can be adjusted by using one driving device, the number of required driving devices is reduced, and the structure of the storage cabinet is simplified.

Description

Technical Field

[0001] This application relates to the field of refrigeration equipment technology, and more particularly to a storage cabinet. Background Technology

[0002] Storage cabinets, such as freezers and cigar cabinets, are used to store items and provide suitable temperature and humidity to extend their shelf life.

[0003] In related technologies, storage cabinets are equipped with multiple shelves, which divide the storage room into multiple independent storage spaces to make full use of the vertical space of the storage room, improve the space utilization rate, and increase the overall storage capacity. Each shelf is equipped with a corresponding drive device, which drives the corresponding shelf to lift and lower, thereby adjusting the shelf height to suit the height requirements of the items placed on the shelf.

[0004] However, the storage cabinet requires multiple drive units inside, which leads to the complexity of the cabinet's structure. Summary of the Invention

[0005] This application provides a storage cabinet that can solve the technical problem of complex structure of related storage cabinets.

[0006] This application provides a storage cabinet, including:

[0007] Cabinets are used to create storage rooms;

[0008] Support frame, installed inside the storage room;

[0009] The active component is mounted on the support frame and has an interlocking structure.

[0010] The drive unit is located in the cabinet and connected to the active component;

[0011] Multiple lifting components are spaced apart on the support frame along the height direction; the lifting components include:

[0012] The lifting shell is slidably mounted on the support frame along the height direction;

[0013] Locking mechanism, used to lock or unlock the lifting shell and support frame;

[0014] A sliding mechanism is slidably disposed on the lifting housing to switch between an engaged position and a disengaged position; the sliding mechanism is constructed with a mating structure, which engages with the engagement structure when the sliding mechanism is in the engaged position; and disengages from the engagement structure when the sliding mechanism is in the disengaged position.

[0015] Multiple shelves are provided, each corresponding to a different lifting shell, and the shelves are connected to the corresponding lifting shell.

[0016] When the locking mechanism unlocks the lifting shell and the support frame, and the biting structure and the mating structure are engaged, the driving device drives the active component, which in turn drives the sliding mechanism, the lifting shell and the shelf to move along the height direction.

[0017] The storage cabinet in this embodiment of the application allows the drive device to adjust the height of one shelf at a time, and can also simultaneously raise or lower multiple shelves. This is achieved simply by unlocking the locking mechanism corresponding to the shelf to be adjusted from the lifting housing and support frame, and engaging the interlocking and mating structures. The active component can then simultaneously drive multiple sliding mechanisms to rise and fall, improving the efficiency of shelf height adjustment. The storage cabinet in this embodiment of the application uses only one drive device to adjust the height of multiple shelves, reducing the number of drive devices required and simplifying the cabinet's structure.

[0018] In some embodiments of this application, the lifting shell is ferromagnetic;

[0019] The sliding mechanism includes mating parts and an electromagnetic module;

[0020] The mating parts are slidably mounted on the lifting housing, and the mating parts have a mating structure.

[0021] The electromagnetic module is connected to one side of the mating part along the engagement direction; when the electromagnetic module is de-energized, the mating part is in the disengaged position; when the electromagnetic module is energized, it drives the mating part to move relative to the lifting shell to the engagement position and engage with the lifting shell.

[0022] The lifting assembly also includes an elastic reset component, which is disposed between the lifting housing and the sliding mechanism. The elastic reset component is used to apply a spring force to the sliding mechanism when the electromagnetic module is de-energized, so that the sliding mechanism moves from the engaging position to the disengaged position.

[0023] With this setup, the engagement or disengagement of the mating and interlocking structures can be controlled by turning the electromagnetic module on and off. The structure is simple and the fit is reliable.

[0024] In some embodiments of this application, the storage cabinet further includes a button control component, which is disposed in the cabinet body; the button control component includes:

[0025] The rise button is electrically connected to the drive unit and is used to control the drive unit to drive the sliding mechanism to rise.

[0026] The descent button is electrically connected to the drive unit and is used to control the drive unit to drive the sliding mechanism to descend.

[0027] Multiple selection buttons are set one-to-one with multiple lifting components. The selection buttons are electrically connected to the corresponding electromagnetic modules to control the electromagnetic modules to be powered on or off.

[0028] With this setup, the selection, raising, lowering, and resetting of shelves can be completed sequentially via button control components. This reduces the amount of manual disassembly and point-by-point calibration, improves the accuracy, continuity, and stability of height adjustment during use, and helps to enhance the display and replenishment efficiency of the storage cabinets.

[0029] In some embodiments of this application, the lifting shell is constructed with a sliding channel, and the sliding mechanism is slidably disposed within the sliding channel;

[0030] The electromagnetic module has a guide groove on the side opposite to the mating part, and the depth direction of the guide groove is parallel to the sliding direction of the sliding mechanism.

[0031] A limit post is provided on the channel wall of the sliding channel facing the electromagnetic module. The limit post extends along the sliding direction of the sliding mechanism, and at least part of the limit post passes through the guide groove.

[0032] With this configuration, the limiting post guides the electromagnetic module, allowing it to slide along the sliding direction of the sliding mechanism without significant deflection, thus improving the reliability of the sliding cooperation between the sliding mechanism and the lifting housing.

[0033] In some embodiments of this application, the elastic reset member is sleeved on the limiting post, and at least a portion of the elastic reset member is located in the guide groove.

[0034] With this configuration, since the elastic reset component is at least partially located within the guide groove, its reset force can directly act on the sliding mechanism within a shorter force transmission path. At the same time, the guide groove forms a covering and limiting effect on the elastic reset component and the mating component, which can reduce shaking, uneven wear, and rebound impact during the reset process. This makes the switching between the engagement and disengagement positions of the sliding mechanism more reliable, thereby enabling the sliding mechanism to quickly disengage from the active component, improving the response consistency, positioning stability, and long-term reliability of the shelf adjustment.

[0035] In some embodiments of this application, the support frame is constructed with a plurality of locking holes spaced apart along the height direction of the cabinet.

[0036] The lifting shell is constructed with a limiting hole, which selectively corresponds to one of a plurality of locking holes during the lifting process of the lifting shell;

[0037] When the locking mechanism is inserted into the limiting hole and the corresponding locking hole, the locking mechanism locks the lifting shell and the support frame.

[0038] When the locking mechanism moves out of the locking hole corresponding to the limit hole, the locking mechanism unlocks the lifting shell and the support frame.

[0039] With this configuration, when the locking mechanism passes through the limiting hole and the corresponding locking hole, it locks the lifting housing and the support frame. When the locking mechanism moves out of the locking hole corresponding to the limiting hole, it unlocks the lifting housing and the support frame.

[0040] In some embodiments of this application, the axis of the limiting hole is perpendicular to the height direction and also perpendicular to the sliding direction of the sliding mechanism;

[0041] The limiting hole is a multi-stage stepped hole, including a first-stage hole segment, a second-stage hole segment, and a third-stage hole segment with successively decreasing hole diameters. The third-stage hole segment is closer to the locking hole than the first-stage hole segment. A first step surface is formed between the first-stage hole segment and the second-stage hole segment, and a second step surface is formed between the second-stage hole segment and the third-stage hole segment.

[0042] The locking mechanism includes a pin and a resilient element;

[0043] The pin consists of a connecting rod and a head; the side of the head facing away from the rod is a convex spherical surface.

[0044] When the sliding mechanism is in the disengaged position, the rod passes through the second-stage hole, the third-stage hole, and the locking hole, with the head located in the first-stage hole; the elastic element is located in the second-stage hole, and both ends of the elastic element along the axial direction of the second-stage hole are elastically pressed and engaged with the head and the second step surface, respectively, with the end of the head away from the rod engaging with the stop of the sliding mechanism.

[0045] The sliding mechanism has a relief recess on the side facing the limiting hole, and the wall of the relief recess is partially spherical.

[0046] When the sliding mechanism is in the disengaged position, the clearance recess is located on the side of the locking mechanism opposite to the engagement direction;

[0047] During the process of the sliding mechanism moving to the engagement position, the head is pushed into the avoidance recess under the elastic force of the elastic element, and the rod moves out of the limiting hole.

[0048] With this configuration, when the sliding mechanism is in the disengaged position, the head of the pin is located outside the clearance recess, which is located on the side of the locking mechanism opposite to the engagement direction. The head of the pin abuts against the side wall of the sliding mechanism, compressing the elastic element. The pin does not connect the lifting housing to the sliding mechanism, allowing the sliding mechanism to slide relative to the lifting housing.

[0049] As the sliding mechanism moves to the engagement position, the clearance recess gradually approaches the head. When the clearance recess and the head are aligned, the head is pushed into the clearance recess by the elastic force of the elastic element, and the rod moves out of the limiting hole. At this time, the lifting shell and the support frame are unlocked, and the lifting shell can be raised and lowered relative to the support frame. Since the head of the pin is inserted into the clearance recess, the sliding mechanism is difficult to slide relative to the lifting shell, so that the sliding mechanism can remain in the disengaged position.

[0050] In some embodiments of this application, the active component is a lead screw, which extends along the height direction and is rotatably mounted on the support frame.

[0051] The drive unit is used to drive the lead screw to rotate around its own axis;

[0052] The mating structure is an internal thread constructed within the sliding mechanism;

[0053] When the sliding mechanism moves to the engagement position, the internal thread engages with the lead screw thread.

[0054] This configuration, due to the superior displacement resolution and self-locking characteristics of the screw drive, allows the sliding mechanism to maintain its current position after reaching the target height, even if the drive unit stops operating. This ensures more accurate shelf height positioning. Simultaneously, the helical drive ensures continuous and smooth operation, reducing impact and swaying during lifting and lowering, and improving load-bearing stability and display consistency.

[0055] In some embodiments of this application, the lifting shell has a slot with a top opening on the front side along the depth direction of the cabinet;

[0056] The shelf structure has a plug-in part, which is inserted into the slot from top to bottom.

[0057] This design allows the slot to form an embedded interface between the shelf and the lifting housing. The insertion of the connector from top to bottom into the slot enables rapid assembly, accurate positioning, and stable support of the shelf relative to the lifting housing. This structure allows the shelf to reliably connect with the lifting housing in the installed state, relying on the lateral containment of the connector by the slot and the bottom support. This maintains the shelf's stability as the lifting housing moves the shelf vertically, reducing the possibility of lateral swaying, forward / backward movement, and accidental detachment.

[0058] In some embodiments of this application, the lifting assembly further includes a limiting member, which is detachably connected to the lifting housing;

[0059] The bottom of the limiting component is pressed against the top of the shelf.

[0060] With this configuration, the bottom of the limiting component is pressed against the top of the shelf, forming a pressing relationship between the bottom and the top of the shelf. At this time, the limiting component is equivalent to establishing a stable constraint point above the shelf, so that the shelf can still maintain a good positioning state when it is affected by product load, opening and closing disturbance or vibration. Attached Figure Description

[0061] To more clearly illustrate the implementation methods in the embodiments of this application or related technologies, the accompanying drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings.

[0062] Figure 1 This is a schematic diagram of the structure of the storage cabinet according to an embodiment of this application;

[0063] Figure 2 for Figure 1 A structural diagram of the storage cabinet after the shelves have been removed;

[0064] Figure 3 for Figure 2 A magnified view of a section at point P1;

[0065] Figure 4 This is a structural schematic diagram of the support frame, active component, lifting assembly, and shelf in the storage cabinet according to an embodiment of this application;

[0066] Figure 5 for Figure 3 Sectional view along the middle AA direction;

[0067] Figure 6 for Figure 1 A magnified view of a section at point P2;

[0068] Figure 7 This is a schematic diagram of the lifting shell in the storage cabinet according to an embodiment of this application;

[0069] Figure 8 for Figure 4 A magnified view of a section at point P3;

[0070] Figure 9 for Figure 5 A schematic diagram of the sliding mechanism when it moves to the disengaged position;

[0071] Figure 10 for Figure 5 A magnified view of a portion of P4 in the middle;

[0072] Figure 11 for Figure 9 A magnified view of a portion of P5 in the middle;

[0073] Figure 12 This is a schematic diagram of the sliding mechanism in the storage cabinet according to an embodiment of this application;

[0074] Figure 13 for Figure 12 A schematic diagram of the exploded structure;

[0075] Figure 14 for Figure 2 A magnified view of a portion of P6 in the diagram.

[0076] Explanation of reference numerals in the attached figures:

[0077] 10-Cabinet; 11-Storage room;

[0078] 20-Support bracket; 21-Locking hole;

[0079] 30 - Active component; 31 - Interlocking structure;

[0080] 40 - Lifting assembly;

[0081] 41-Lifting housing; 411-Sliding channel; 412-Limiting post; 413-Limiting hole; 4131-First-stage hole section; 4132-Second-stage hole section; 4133-Third-stage hole section; 414-First-stage surface; 415-Second-stage surface; 416-Slot;

[0082] 42-Locking mechanism; 421-Pin; 4211-Lever; 4212-Head; 4213-Partial spherical surface; 422-Elastic element;

[0083] 43-Sliding mechanism; 431-Matching part; 4311-Matching structure; 4312-Avoidance recess; 4313-Insertion slot; 432-Electromagnetic module; 4321-Guide groove; 4322-Insertion part;

[0084] 44 - Elastic reset element;

[0085] 45-Limiting component; 451-Connecting plate; 452-Pressure plate;

[0086] 50 - Shelf; 51 - Connector;

[0087] 60 - Button control component; 61 - Up button; 62 - Down button; 63 - Selection button. Detailed Implementation

[0088] To make the objectives and implementation methods of this application clearer, the exemplary implementation methods of this application will be clearly and completely described below with reference to the accompanying drawings of the exemplary embodiments of this application. Obviously, the exemplary embodiments described are only some embodiments of this application, and not all embodiments.

[0089] It should be noted that the brief descriptions of terms in this application are only for the convenience of understanding the embodiments described below, and are not intended to limit the embodiments of this application. Unless otherwise stated, these terms should be understood in their ordinary and common meaning.

[0090] The terms "first," "second," "third," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar or related objects or entities, and do not necessarily imply a specific order or sequence, unless otherwise specified. It should be understood that such terms are interchangeable where appropriate.

[0091] The terms “comprising” and “having”, and any variations thereof, are intended to cover but not exclude inclusion, for example, a product or device that includes a range of components is not necessarily limited to all of the components that are clearly listed, but may include other components that are not clearly listed or that are inherent to such product or device.

[0092] As stated in the background section, in the storage cabinets of the related art, each shelf is driven to rise and fall by a corresponding drive device. The number of drive devices is the same as the number of shelves. When there are many shelves, the number of drive devices required for the storage cabinet also increases accordingly, resulting in a complex structure of the storage cabinet.

[0093] To address the aforementioned technical problems, this application provides a storage cabinet comprising a support frame, an active component, a drive device, and multiple lifting components within the storage compartment. Each lifting component corresponds to a shelf. Each lifting component includes a lifting housing, a locking mechanism, and a sliding mechanism. Each shelf is connected to its corresponding lifting housing. When in use, the locking mechanism locks the lifting housing and the support frame to maintain the shelf at a set height. When the shelf height needs adjustment, the locking mechanism unlocks the lifting housing and the support frame, and the sliding mechanism slides to the engaging position, engaging the mating structure and the engaging structure. The drive device is then activated, driving the active component to move. The active component causes the sliding mechanism, the lifting housing, and the shelf to rise or fall along the height direction to adjust the shelf height. After the shelf height adjustment is complete, the sliding mechanism slides to the disengaged position to disengage the mating structure and the engaging structure, and the locking mechanism locks the lifting housing and the support frame to maintain the shelf at the set height, completing the entire shelf adjustment process. The storage cabinet in this embodiment of the application can adjust the height of multiple shelves using a single drive device, reducing the number of drive devices required and simplifying the structure of the storage cabinet.

[0094] 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 some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0095] refer to Figure 1 The storage cabinet provided in this application embodiment can be a refrigerator, freezer, cigar cabinet, vending machine, etc. The storage cabinet includes a cabinet body 10 for forming a storage room 11, a shelf 50 disposed in the storage room 11, and a door for opening and closing the storage room 11.

[0096] Shelves 50 are used to place items. There can be multiple shelves 50. Multiple shelves 50 are arranged at intervals along the height direction Z of the cabinet 10 to divide the storage room 11 into multiple independent storage spaces, which improves the space utilization rate of the storage room 11 in the height direction Z and increases the storage capacity of the entire storage room 11.

[0097] refer to Figure 1 and Figure 2 The storage cabinet in this embodiment of the application also includes a support frame 20, an active component 30, a drive device, and multiple lifting components 40.

[0098] The support frame 20 is installed inside the storage room 11 and can be fixedly connected to the cabinet 10.

[0099] refer to Figure 2 and Figure 3 The active component 30 is disposed on the support frame 20 and can extend along the height direction Z of the cabinet 10. The active component 30 is constructed with an interlocking structure 31.

[0100] The drive unit is located in the cabinet 10, and is connected to the active component 30, and drives the active component 30 to move.

[0101] The driving device can be a drive motor or other device that can output rotational motion.

[0102] refer to Figure 2 and Figure 3 In some possible implementations of this application, the active component 30 can be a lead screw, which extends along the height direction Z of the cabinet 10 and is rotatably mounted on the support frame 20. The driving device is used to drive the lead screw to rotate clockwise or counterclockwise relative to the support frame 20 about the axis of the lead screw.

[0103] In some other possible implementations of this application, the active component 30 can be a rack extending along the height direction Z of the cabinet 10, and the rack is vertically and flexibly mounted on the support frame 20. A driving device is used to drive the rack to rise or fall relative to the support frame 20 along the height direction Z.

[0104] refer to Figure 1 , Figure 2 and Figure 4 Each lifting assembly 40 is spaced Z-interval on the support frame 20 along the height direction Z of the cabinet 10. The number of lifting assemblies 40 is the same as the number of shelves 50, with each lifting assembly 40 corresponding to one shelf 50. Each shelf 50 is connected to its corresponding lifting assembly 40, so that each shelf 50 is arranged at Z-intervals along the height direction Z of the cabinet 10 within the storage room 11.

[0105] refer to Figure 3 and Figure 5 The lifting assembly 40 includes a lifting housing 41, a locking mechanism 42, and a sliding mechanism 43.

[0106] refer to Figure 3 The lifting shell 41 is slidably mounted on the support frame 20 along the height direction Z of the cabinet 10, that is, the lifting shell 41 can rise or fall along the support frame 20.

[0107] refer to Figure 6 The shelf 50 is connected to the lifting housing 41 of the corresponding lifting assembly 40. The lifting housing 41 drives the shelf 50 to rise and fall relative to the support frame 20.

[0108] refer to Figure 3 , Figure 7 and Figure 8 In some possible implementations of the embodiments of this application, the lifting shell 41 may be constructed with a slot 416 with a top opening on the front side along the depth direction Y of the cabinet 10.

[0109] refer to Figure 8 The shelf 50 has a plug-in part 51, which is inserted into the slot 416 from top to bottom.

[0110] The slot 416 forms an embedded interface between the shelf 50 and the lifting housing 41. After the insertion part 51 is inserted into the slot 416 from top to bottom, the shelf 50 can be quickly assembled, accurately positioned, and stably supported relative to the lifting housing 41. This structure allows the shelf 50 to form a reliable connection with the lifting housing 41 in the installed state, relying on the lateral containment and bottom support of the insertion part 51 by the slot 416. This keeps the shelf 50 stable when the lifting housing 41 moves the shelf 50 along the height direction Z, reducing the possibility of lateral swaying, forward and backward movement, and accidental detachment.

[0111] The slot 416 is located on the front side of the lifting shell 41 along the depth direction Y of the cabinet 10, and is usually arranged near the opening of the cabinet 10 or the side of the merchandise display, so that the operator can place or remove the shelf 50 from above.

[0112] The insertion part 51 can be provided on the support foot, connecting ear or local reinforcement at the bottom of the shelf 50, and form an insertion fit with the inner cavity of the slot 416.

[0113] refer to Figure 3 and Figure 6 The lifting assembly 40 may also include a limiting member 45, which is detachably connected to the lifting housing 41. The limiting member 45 is located above the shelf 50.

[0114] The bottom of the limiting member 45 is pressed against the top of the shelf 50, so that the bottom of the shelf 50 is pressed against the top of the shelf 50. At this time, the limiting member 45 is equivalent to establishing a stable constraint point above the shelf 50, so that the shelf 50 can still maintain a good positioning state when it is affected by product load, opening and closing disturbance or vibration.

[0115] As the lifting shell 41 is adjusted on the support frame 20, the limiting member 45 moves synchronously with the lifting shell 41 and continuously applies constraint to the top of the shelf 50, so that the fit between the shelf 50 and the lifting shell 41 remains consistent throughout the height adjustment process, and avoids the shelf 50 from swaying due to gap changes or local loosening.

[0116] Meanwhile, since the limiting component 45 adopts a detachable connection method, when the shelf 50 needs to be replaced, cleaned, repaired or rearranged, the connection between the limiting component 45 and the lifting shell 41 can be disconnected first, and then the shelf 50 can be disassembled and reassembled, thus taking into account both the stability during use and the convenience during maintenance.

[0117] Based on the above process, it can be seen that the solution can effectively suppress the tilting and swaying of the shelf 50 without significantly increasing the structural complexity, improve the load-bearing stability and reliability of the shelf 50, and facilitate subsequent disassembly and maintenance.

[0118] refer to Figure 6 The limiting member 45 may include a connecting plate 451 and a pressure plate 452 connected together. The connecting plate 451 and the lifting housing 41 may be connected by fastening screws or snap-fit. The pressure plate 452 is connected to the bottom of the connecting plate 451. The pressure plate 452 may be approximately parallel to the layer direction of the shelf 50. The pressure plate 452 presses against the top of the shelf 50 to prevent the shelf 50 from detaching upward from the slot 416.

[0119] The limiting member 45, which consists of connecting plate 451 and pressure plate 452, has a simple structure, which simplifies the structure of the storage cabinet.

[0120] refer to Figure 5 and Figure 9 The locking mechanism 42 is used to lock or unlock the lifting housing 41 and the support frame 20. (See reference) Figure 9 When the locking mechanism 42 locks the lifting housing 41 to the support frame 20, the lifting housing 41 cannot slide relative to the support frame 20. (Reference) Figure 5 When the locking mechanism 42 unlocks the lifting shell 41 and the support frame 20, the lifting shell 41 can slide up or down along the support frame 20.

[0121] refer to Figure 3 and Figure 6 In some possible implementations of the embodiments of this application, the support frame 20 may be constructed with a plurality of locking holes 21 spaced apart along the height direction Z of the cabinet 10.

[0122] refer to Figure 5 and Figure 7 The lifting housing 41 can be constructed with a limiting hole 413, which selectively corresponds to one of the multiple locking holes 21 during the lifting process of the lifting housing 41.

[0123] refer to Figure 9 When the locking mechanism 42 passes through the limiting hole 413 and the locking hole 21 corresponding to the limiting hole 413, it can lock the lifting shell 41 and the support frame 20.

[0124] refer to Figure 5 When the locking mechanism 42 moves out of the locking hole 21 corresponding to the limiting hole 413, the locking mechanism 42 unlocks the lifting shell 41 and the support frame 20.

[0125] In some embodiments, the locking mechanism 42 can be a plug rod, which can be inserted into the limiting hole 413 and the corresponding locking hole 21 to lock the lifting shell 41 and the support frame 20, so that the lifting shell 41 and the shelf 50 connected thereto are held at a set height. When it is necessary to unlock the lifting shell 41 and the support frame 20, it is only necessary to remove the plug rod from the limiting hole 413 and the locking hole 21.

[0126] In other embodiments, the axis of the limiting hole 413 may be perpendicular to the height direction Z of the cabinet 10 and perpendicular to the sliding direction of the sliding mechanism 43.

[0127] refer to Figure 5 and Figure 10The limiting hole 413 can be a multi-stage stepped hole, including a first-stage hole segment 4131, a second-stage hole segment 4132 and a third-stage hole segment 4133 with successively decreasing hole diameters. The third-stage hole segment 4133 is closer to the locking hole 21 than the first-stage hole segment 4131. A first step surface 414 is formed between the first-stage hole segment 4131 and the second-stage hole segment 4132, and a second step surface 415 is formed between the second-stage hole segment 4132 and the third-stage hole segment 4133.

[0128] refer to Figure 5 and Figure 10 The locking mechanism 42 may include a pin 421 and an elastic element 422.

[0129] The pin 421 includes a connected rod portion 4211 and a head 4212; the side of the head 4212 facing away from the rod portion 4211 is a convex spherical surface 4213.

[0130] refer to Figure 11 When the sliding mechanism 43 is in the disengaged position, the rod 4211 passes through the second-stage hole 4132, the third-stage hole 4133, and the locking hole 21 to lock the lifting housing 41 and the support frame 20. The head 4212 is located in the first-stage hole 4131. The elastic element 422 can be a compression spring, a wave spring, or an elastic washer, etc., and the material can be stainless steel, spring steel, alloy steel, or a hardened metal with wear resistance to adapt to long-term reciprocating work in low-temperature environments such as freezers and storage cabinets. The elastic element 422 is located in the second-stage hole 4132, and both ends of the elastic element 422 along the axial direction of the second-stage hole 4132 are elastically pressed and engaged with the head 4212 and the second step surface 415, respectively. The end of the head 4212 away from the rod 4211 is engaged with the stop of the sliding mechanism 43.

[0131] The sliding mechanism 43 has a relief recess 4312 on the side facing the limiting hole 413. The wall of the relief recess 4312 is partially spherical 4213 and the wall of the relief recess 4312 is adapted to the head 4212 of the pin 421.

[0132] refer to Figure 9 and Figure 11 When the sliding mechanism 43 is in the disengaged position, the head 4212 of the pin 421 is located outside the clearance recess 4312, which is located on the side of the locking mechanism 42 opposite to the engagement direction. The head 4212 of the pin 421 abuts against the side wall of the sliding mechanism 43, and the elastic element 422 is compressed. The pin 421 does not connect the lifting housing 41 to the sliding mechanism 43, and the sliding mechanism 43 can slide relative to the lifting housing 41 at this time.

[0133] As the sliding mechanism 43 moves to the engagement position, the clearance recess 4312 gradually approaches the head 4212. When the clearance recess 4312 and the head 4212 are aligned, the head 4212 is pushed into the clearance recess 4312 under the elastic force of the elastic member 422, and the rod 4211 moves out of the limiting hole 413. (Reference) Figure 5 and Figure 10 At this time, the lifting shell 41 is unlocked from the support frame 20, and the lifting shell 41 can be raised and lowered relative to the support frame 20. Since the head 4212 of the pin 421 is inserted into the relief recess 4312, the sliding mechanism 43 is difficult to slide relative to the lifting shell 41, so that the sliding mechanism 43 can remain in the disengaged position.

[0134] The radius of the arc corresponding to the relief recess 4312 can be greater than the radius of the arc corresponding to the head 4212 of the pin 421, so that the curvature of the relief recess 4312 is less than the curvature of the head 4212 of the pin 421. This makes it easier for the head 4212 of the pin 421 to disengage from the relief recess 4312 when the sliding mechanism 43 moves away from the engagement direction, and makes it easier for the sliding mechanism 43 to return to the disengaged position.

[0135] The sliding mechanism 43 is slidably disposed on the lifting housing 41 to switch between an engaged position and a disengaged position. The sliding direction of the sliding mechanism 43 relative to the lifting housing 41 can be perpendicular to the height direction Z of the cabinet 10. For example, the sliding direction of the sliding mechanism 43 relative to the lifting housing 41 can be parallel to the depth direction Y of the cabinet 10 (see reference). Figure 5 and Figure 9 (e.g., width direction X) or width direction X.

[0136] refer to Figure 5 and Figure 7 The lifting housing 41 can be constructed with a sliding channel 411, and the extension direction of the sliding channel 411 can be along the depth direction Y of the cabinet 10 (see reference). Figure 5 and Figure 9 The sliding mechanism 43 is slidably disposed within the sliding channel 411 in the depth direction Y or width direction X of the cabinet 10 relative to the lifting shell 41.

[0137] refer to Figure 9 and Figure 12 The sliding mechanism 43 is equipped with a mating structure 4311. (See reference) Figure 5 When the sliding mechanism 43 is in the engaging position, the mating structure 4311 engages with the engaging structure 31. (Reference) Figure 9 When the sliding mechanism 43 is in the disengaged position, the mating structure 4311 disengages from the engagement structure 31.

[0138] refer to Figure 12In the implementation where the active component 30 is a lead screw, the mating structure 4311 can be an internal thread constructed on the sliding mechanism 43. When the sliding mechanism 43 moves to the engaged position, the internal thread engages with the lead screw thread. When the lead screw rotates forward, it can drive the sliding mechanism 43, the lifting housing 41, and the shelf 50 to rise along the height direction Z. When the lead screw rotates in reverse, it can drive the sliding mechanism 43, the lifting housing 41, and the shelf 50 to descend along the height direction Z. When the sliding mechanism 43 moves to the disengaged position, the internal thread disengages from the lead screw, and the rotation of the lead screw will no longer drive the sliding mechanism 43 to rise or fall.

[0139] Because the lead screw drive has good displacement resolution and self-locking characteristics, the sliding mechanism 43 can maintain its current position under the action of screw engagement after reaching the target height, even if the drive device stops working, thus making the height positioning of the shelf 50 more accurate. At the same time, the screw pair drive makes the operation continuous and smooth, which can reduce the impact and shaking during the lifting process, and improve the load-bearing stability and display consistency.

[0140] In the implementation where the active component 30 is a rack, the mating structure 4311 can be a mating tooth constructed on the sliding mechanism 43. When the sliding mechanism 43 moves to the engagement position, the mating tooth engages with the rack, and the rack can drive the sliding mechanism 43, the lifting shell 41, and the shelf 50 to rise or fall along the height direction Z.

[0141] When the sliding mechanism 43 moves to the disengaged position, the meshing teeth and the rack disengage. When the rack slides along the height direction Z, it will be unable to drive the sliding mechanism 43 to rise and fall along the height direction Z.

[0142] refer to Figure 5 When the locking mechanism 42 unlocks the lifting shell 41 and the support frame 20, and the engaging structure 31 engages with the mating structure 4311, the driving device drives the active component 30. The active component 30 drives the sliding mechanism 43, the lifting shell 41 and the shelf 50 to rise or fall along the height direction Z, so as to adjust the height of the shelf 50.

[0143] refer to Figure 9 When the shelf 50 is in use, the locking mechanism 42 locks the lifting shell 41 and the support frame 20, so that the lifting shell 41 cannot slide relative to the support frame 20, thereby keeping the shelf 50 at a set height.

[0144] When the height of the shelf 50 needs to be adjusted, the locking mechanism 42 unlocks the lifting housing 41 and the support frame 20, and the sliding mechanism 43 slides to the engaging position so that the mating structure 4311 engages with the engaging structure 31. (Refer to...) Figure 5 At this time, the drive device is turned on, and the drive device will drive the active component 30 to move. The active component 30 drives the sliding mechanism 43, the lifting shell 41 and the shelf 50 to rise or fall along the height direction Z, so as to adjust the height of the shelf 50.

[0145] After the shelf 50 height is adjusted, the sliding mechanism 43 is slid to the disengagement position so that the mating structure 4311 disengages from the interlocking structure 31, and the locking mechanism 42 locks the lifting shell 41 and the support frame 20 to keep the shelf 50 at the set height, thus completing the entire shelf 50 adjustment process.

[0146] In the storage cabinet of this application embodiment, the driving device can adjust the height of one shelf 50 at a time, and can also raise or lower multiple shelves 50 simultaneously. It is only necessary to unlock the locking mechanism 42 corresponding to the shelf 50 to be adjusted, the lifting shell 41 and the support frame 20, and the engaging structure 31 and the cooperating structure 4311 engage. The active component 30 can then drive multiple sliding mechanisms 43 to rise and fall at the same time, which improves the efficiency of adjusting the height of the shelf 50.

[0147] The storage cabinet of this application embodiment can adjust the height of multiple shelves 50 using a single drive device, reducing the number of drive devices required and simplifying the structure of the storage cabinet.

[0148] The lifting shell 41 may be ferromagnetic. For example, the lifting shell 41 may be made of low carbon steel plate by stamping, iron-based alloy by casting, or a composite shell structure with a non-ferromagnetic substrate covered with a ferromagnetic layer.

[0149] refer to Figure 5 , Figure 9 and Figure 13 The sliding mechanism 43 includes a mating part 431 and an electromagnetic module 432 connected to each other.

[0150] refer to Figure 13 In some possible implementations of the embodiments of this application, the mating part 431 may be constructed with a plug-in groove 4313 extending along the height direction Z of the cabinet 10. The top of the plug-in groove 4313 may penetrate the mating part 431, and the opening of the plug-in groove 4313 faces the electromagnetic module 432. The width of the plug-in groove 4313 decreases from the bottom to the opening.

[0151] refer to Figure 13 The electromagnetic module 432 may have an insertion part 4322 on the side facing the mating part 431. The shape of the insertion part 4322 is adapted to the shape of the insertion groove 4313, and the insertion part 4322 is inserted into the insertion groove 4313 from top to bottom. Since the width of the insertion groove 4313 gradually narrows from the bottom to the opening, the groove wall of the insertion groove 4313 can stop the insertion part 4322, reducing the possibility of the insertion part 4322 moving out of the opening of the insertion groove 4313, and improving the reliability of the connection between the electromagnetic module 432 and the mating part 431.

[0152] The mating part 431 is slidably disposed on the lifting shell 41, and the mating part 431 is constructed with a mating structure 4311.

[0153] The electromagnetic module 432 can be a coil electromagnet, a miniature electromagnetic push rod assembly, or an electromagnetic chuck-type drive component, etc. The electromagnetic module 432 is connected to one side of the mating component 431 along the engagement direction. The engagement direction refers to the path along which the sliding mechanism 43 moves from the disengaged position to the engaged position.

[0154] refer to Figure 9 When the power is off, the electromagnetic module 432 does not have electromagnetic attraction, and the mating part 431 is in the disengaged position.

[0155] refer to Figure 5 When the electromagnetic module 432 is powered on, it generates electromagnetic attraction, which drives the mating part 431 to move relative to the lifting shell 41 to the engagement position and engage with the lifting shell 41.

[0156] refer to Figure 5 and Figure 9 The lifting assembly 40 may also include an elastic reset member 44, which is disposed between the lifting housing 41 and the sliding mechanism 43. When the electromagnetic module 432 is de-energized, the elastic reset member 44 applies a spring force to the sliding mechanism 43 so that the sliding mechanism 43 moves from the engaging position to the disengaged position.

[0157] When the electromagnetic module 432 is in a de-energized state, the mating part 431 remains in the disengaged position under the initial action of the elastic reset part 44. At this time, the mating structure 4311 separates from the engagement structure 31, and the action of the active component 30 will not be able to drive the lifting component 40 corresponding to the mating part 431 to rise or fall.

[0158] When the height of a shelf 50 needs to be adjusted, the electromagnetic module 432 corresponding to the shelf 50 is energized to generate a magnetic attraction force, causing the sliding mechanism 43, which is composed of the electromagnetic module 432 and the mating part 431, to move as a whole along the engagement direction, so that the sliding mechanism 43 moves to the engagement position, and the electromagnetic module 432 is attracted to the lifting shell 41. Due to the attraction between the electromagnetic module 432 and the lifting shell 41, the sliding mechanism 43 can be kept in the engagement position, which improves the reliability of the cooperation between the active component 30 and the sliding mechanism 43.

[0159] After the shelf 50 height is adjusted, the electromagnetic module 432 is de-energized, the electromagnetic attraction of the electromagnetic module 432 to the lifting shell 41 disappears, and the sliding mechanism 43 formed by the electromagnetic module 432 and the mating part 431 is pushed to the disengagement position under the elastic force of the elastic reset part 44, so that the mating structure 4311 disengages from the interlocking structure 31.

[0160] Therefore, by controlling the on and off of the electromagnetic module 432, the engagement or disengagement of the mating structure 4311 and the biting structure 31 can be controlled. The structure is simple and the engagement is reliable.

[0161] refer to Figure 1 , Figure 2 and Figure 14 The storage cabinet may also include a button control component 60, which is located on the cabinet body 10, for example, on the front edge of the storage compartment 11 of the cabinet body 10, so that the button control component 60 can be manually controlled after the cabinet door is opened.

[0162] refer to Figure 14 The button control component 60 may include an up button 61, a down button 62, and multiple selection buttons 63.

[0163] The up button 61 is electrically connected to the drive device and is used to control the drive device to drive the sliding mechanism 43 to rise.

[0164] The descent button 62 is electrically connected to the drive device and is used to control the drive device to drive the sliding mechanism 43 to descend.

[0165] For example, the up button 61 can be used to control the drive device to rotate forward, so as to drive the sliding mechanism 43 to rise through the active member 30; the down button 62 can be used to control the drive device to rotate in reverse, so as to drive the sliding mechanism 43 to fall through the active member 30.

[0166] Multiple selection buttons 63 are configured one-to-one with multiple lifting components 40. Each selection button 63 is electrically connected to a corresponding electromagnetic module 432 and is used to control the electromagnetic module 432 to be powered on or off. For example, when the selection button 63 is pressed for the first time, it controls the electromagnetic module 432 to be powered on, and when it is pressed for the second time, it controls the electromagnetic module 432 to be powered off.

[0167] When it is necessary to adjust the height of the second shelf 50 from the top, press the selection button 63 corresponding to the second shelf 50. At this time, the electromagnetic module 432 in the lifting assembly 40 corresponding to the second shelf 50 is energized, and the sliding mechanism 43 moves to the engagement position. Then press the up button 61 to activate the drive device, which drives the sliding mechanism 43, the lifting housing 41, and the shelf 50 to rise as a whole through the active component 30 until the shelf 50 rises to the required height. Then release the up button 61, and the drive device stops working.

[0168] Finally, press the selection button 63 corresponding to the second shelf 50 again to de-energize the electromagnetic module 432. The sliding mechanism 43 is reset to the disengaged position under the action of the elastic reset member 44, completing the entire lifting adjustment process.

[0169] When it is necessary to adjust the height of multiple shelves 50 synchronously, for example, when it is necessary to synchronously lower the first shelf 50 and the third shelf 50 counting from top to bottom, press the selection button 63 corresponding to the first shelf 50 and the third shelf 50. At this time, the electromagnetic modules 432 in the lifting components 40 corresponding to the first shelf 50 and the third shelf 50 are energized, and the sliding mechanisms 43 move to the engagement position. Then press the descent button 62 to activate the drive device, which drives the sliding mechanism 43, the lifting shell 41 and the shelf 50 to descend as a whole through the active component 30 until the shelf 50 descends to the required height. Then release the descent button 62, and the drive device stops working.

[0170] Finally, press the selection button 63 corresponding to the first shelf 50 and the third shelf 50 again to de-energize the electromagnetic module 432. The sliding mechanism 43 is reset to the disengaged position under the action of the elastic reset member 44, thus completing the entire synchronous adjustment process.

[0171] The selection, raising, lowering, and resetting of the shelf 50 can be completed sequentially through the button control component 60, which reduces the amount of manual disassembly and point-by-point calibration, improves the accuracy, continuity, and stability of height adjustment during use, and helps to improve the display efficiency and replenishment efficiency of the storage cabinet.

[0172] refer to Figure 5 and Figure 9 The electromagnetic module 432 may have a guide groove 4321 on the side opposite to the mating part 431. The depth direction of the guide groove 4321 may be parallel to the sliding direction of the sliding mechanism 43.

[0173] refer to Figure 5 and Figure 9 A limiting post 412 is provided on the channel wall of the sliding channel 411 facing the electromagnetic module 432. The limiting post 412 extends along the sliding direction of the sliding mechanism 43, and at least a portion of the limiting post 412 passes through the guide groove 4321. The limiting post 412 guides the electromagnetic module 432, allowing the electromagnetic module 432 to slide along the sliding direction of the sliding mechanism 43 without significant deflection, thus improving the reliability of the sliding cooperation between the sliding mechanism 43 and the lifting housing 41.

[0174] The elastic reset member 44 is sleeved on the limiting post 412, and at least a portion of the elastic reset member 44 is located in the guide groove 4321.

[0175] The elastic reset element 44 can be any one or a combination of a helical compression spring, a disc spring assembly, or an elastic rubber sleeve. The helical compression spring can provide a more stable linear restoring force, the disc spring assembly is suitable for providing a larger reset force within a shorter stroke, and the elastic rubber sleeve can take into account both buffering and reset functions.

[0176] The elastic reset member 44 is sleeved on the limiting post 412. In this way, the limiting post 412 can not only guide the sliding mechanism 43, but also limit the direction of the elastic force of the elastic reset member 44, so that the direction of the elastic force can be more stably along the sliding direction of the sliding mechanism 43, thereby improving the stability of the elastic reset member 44 when pushing the sliding mechanism 43 to reset.

[0177] When the electromagnetic module 432 is powered on, the sliding mechanism 43 moves toward the engagement position under the action of electromagnetic attraction, and the elastic reset member 44 is compressed and stores elastic potential energy. During this process, the limiting post 412 provides guidance and limitation for the sliding mechanism 43 and the elastic reset member 44 to prevent the sliding mechanism 43 from deflecting.

[0178] When the electromagnetic module 432 is de-energized, the electromagnetic attraction is released, the elastic reset member 44 releases its stored energy and applies a spring force to the sliding mechanism 43 in the direction away from the attraction, pushing the sliding mechanism 43 to smoothly retract to the disengagement position along the limit post 412.

[0179] Since the elastic reset member 44 is at least partially disposed in the guide groove 4321, its reset force can directly act on the sliding mechanism 43 within a shorter force transmission path. At the same time, the guide groove 4321 forms a covering limit on the elastic reset member 44 and the mating member 431, which can reduce the shaking, uneven wear and rebound impact during the reset process, making the switching of the sliding mechanism 43 between the engagement position and the disengagement position more reliable. This allows the sliding mechanism 43 to quickly release the engagement state with the active member 30, improving the response consistency, positioning stability and long-term reliability of the shelf 50 adjustment.

[0180] In some other possible implementations of this application, a portion of the sliding mechanism 43 may extend into the storage compartment 11 so that the user can manually control the sliding mechanism 43 to slide relative to the lifting housing 41, thereby switching the sliding mechanism 43 between an engaged position and a disengaged position.

[0181] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

[0182] For ease of explanation, the above description has been provided in conjunction with specific embodiments. However, the above exemplary discussion is not intended to be exhaustive or to limit the embodiments to the specific forms disclosed above. Various modifications and variations can be obtained based on the above teachings. The selection and description of the above embodiments are for the purpose of better explaining the principles and practical applications, thereby enabling those skilled in the art to better utilize the above embodiments and various different variations of embodiments suitable for specific application considerations.

Claims

1. A storage cabinet, characterized in that, include: Cabinet (10) is used to form a storage room (11); A support frame (20) is installed inside the storage room (11); An active component (30) is disposed on the support frame (20) and has an interlocking structure (31). A drive unit is disposed in the cabinet (10) and connected to the active component (30); Multiple lifting components (40) are spaced apart on the support frame (20) along the height direction of the cabinet (10); each lifting component (40) includes: The lifting shell (41) is slidably disposed on the support frame (20) along the height direction; Locking mechanism (42) for locking or unlocking the lifting shell (41) and the support frame (20); A sliding mechanism (43) is slidably disposed on the lifting shell (41) to switch between an engaging position and a disengaged position; the sliding mechanism (43) is constructed with a mating structure (4311), which engages with the engaging structure (31) when the sliding mechanism (43) is in the engaging position; and disengages from the engaging structure (31) when the sliding mechanism (43) is in the disengaged position. Multiple shelves (50) are provided one-to-one with multiple lifting shells (41), and the shelves (50) are connected to the corresponding lifting shells (41). When the locking mechanism (42) unlocks the lifting shell (41) and the support frame (20), and the biting structure (31) engages with the mating structure (4311), the driving device drives the active component (30), and the active component (30) drives the sliding mechanism (43), the lifting shell (41) and the shelf (50) to move along the height direction; The support frame (20) is constructed with a plurality of locking holes (21) spaced apart along the height direction of the cabinet (10). The lifting housing (41) is constructed with a limiting hole (413), which selectively corresponds to one of the plurality of locking holes (21) during the lifting process of the lifting housing (41); When the locking mechanism (42) passes through the limiting hole (413) and the locking hole (21) corresponding to the limiting hole (413), the locking mechanism (42) locks the lifting shell (41) and the support frame (20). When the locking mechanism (42) moves out of the locking hole (21) corresponding to the limiting hole (413), the locking mechanism (42) unlocks the lifting shell (41) and the support frame (20). The axis of the limiting hole (413) is perpendicular to the height direction and perpendicular to the sliding direction of the sliding mechanism (43); The limiting hole (413) is a multi-stage stepped hole, including a first-stage hole segment (4131), a second-stage hole segment (4132), and a third-stage hole segment (4133) with successively decreasing hole diameters. The third-stage hole segment (4133) is closer to the locking hole (21) than the first-stage hole segment (4131). A first step surface (414) is formed between the first-stage hole segment (4131) and the second-stage hole segment (4132), and a second step surface (415) is formed between the second-stage hole segment (4132) and the third-stage hole segment (4133). The locking mechanism (42) includes a pin (421) and an elastic element (422). The pin (421) includes a rod (4211) and a head (4212) connected to each other; the side of the head (4212) facing away from the rod (4211) is a convex spherical surface (4213). When the sliding mechanism (43) is in the disengaged position, the rod (4211) passes through the second-stage hole (4132), the third-stage hole (4133), and the locking hole (21), and the head (4212) is located in the first-stage hole (4131); the elastic element (422) is located in the second-stage hole (4132), and the two ends of the elastic element (422) along the axial direction of the second-stage hole (4132) are elastically pressed and engaged with the head (4212) and the second step surface (415), respectively, and the end of the head (4212) away from the rod (4211) is engaged with the stop of the sliding mechanism (43); The sliding mechanism (43) has a relief recess (4312) on the side facing the limiting hole (413), and the wall of the relief recess (4312) is partially spherical (4213). When the sliding mechanism (43) is in the disengaged position, the clearance recess (4312) is located on the side of the locking mechanism (42) away from the engagement direction; During the process of the sliding mechanism (43) moving to the engagement position, the head (4212) is pushed into the relief recess (4312) under the elastic force of the elastic member (422), and the rod (4211) moves out of the limiting hole (413).

2. The storage cabinet according to claim 1, characterized in that, The lifting shell (41) is ferromagnetic; The sliding mechanism (43) includes a mating part (431) and an electromagnetic module (432). The mating component (431) is slidably disposed on the lifting shell (41), and the mating component (431) is constructed with the mating structure (4311). The electromagnetic module (432) is connected to one side of the mating part (431) along the engagement direction; when the electromagnetic module (432) is de-energized, the mating part (431) is located in the disengaged position; when the electromagnetic module (432) is energized, it drives the mating part (431) to move relative to the lifting shell (41) to the engagement position and engage with the lifting shell (41); The lifting assembly (40) further includes an elastic reset member (44), which is disposed between the lifting housing (41) and the sliding mechanism (43) and is used to apply elastic force to the sliding mechanism (43) when the electromagnetic module (432) is de-energized, so that the sliding mechanism (43) moves from the engagement position to the disengagement position.

3. The storage cabinet according to claim 2, characterized in that, The storage cabinet also includes a button control component (60), which is disposed on the cabinet body (10); the button control component (60) includes: The up button (61) is electrically connected to the drive device and is used to control the drive device to drive the sliding mechanism (43) to rise; The descent button (62) is electrically connected to the drive device and is used to control the drive device to drive the sliding mechanism (43) to descend; Multiple selection buttons (63) are set one-to-one with multiple lifting components (40). The selection buttons (63) are electrically connected to the corresponding electromagnetic modules (432) and are used to control the electromagnetic modules (432) to be powered on or off.

4. The storage cabinet according to claim 2, characterized in that, The lifting shell (41) is constructed with a sliding channel (411), and the sliding mechanism (43) is slidably disposed in the sliding channel (411); The electromagnetic module (432) has a guide groove (4321) on the side opposite to the mating part (431), and the depth direction of the guide groove (4321) is parallel to the sliding direction of the sliding mechanism (43). The sliding channel (411) is provided with a limiting post (412) on the channel wall facing the electromagnetic module (432). The limiting post (412) extends along the sliding direction of the sliding mechanism (43), and at least a portion of the limiting post (412) passes through the guide groove (4321).

5. The storage cabinet according to claim 4, characterized in that, The elastic reset member (44) is sleeved on the limiting post (412), and at least a portion of the elastic reset member (44) is located in the guide groove (4321).

6. The storage cabinet according to any one of claims 1-5, characterized in that, The active component (30) is a lead screw, which extends along the height direction and is rotatably mounted on the support frame (20). The drive device is used to drive the lead screw to rotate around its own axis. The mating structure (4311) is an internal thread constructed on the sliding mechanism (43); When the sliding mechanism (43) moves to the engagement position, the internal thread engages with the lead screw thread.

7. The storage cabinet according to any one of claims 1-5, characterized in that, The lifting shell (41) has a slot (416) with a top opening on the front side along the depth direction of the cabinet (10). The shelf (50) is provided with a plug-in part (51), which is inserted into the slot (416) from top to bottom.

8. The storage cabinet according to claim 7, characterized in that, The lifting assembly (40) also includes a limiting member (45), which is detachably connected to the lifting housing (41). The bottom of the limiting member (45) is pressed against the top of the shelf (50).

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