Anti-toppling device for the bottom of a compact shelving unit

Abstract

The utility model provides a kind of shelf bottom anti-toppling device, it is related to shelf technical field, specifically including shelf body, the inside sliding connection of shelf body has multiple fixed plates, both sides of multiple fixed plates are fixedly installed with rack, multiple racks are slidably connected with shelf body, the outside of multiple racks is engaged with gear, the inside of shelf body and located the both sides of multiple fixed plates are provided with first support rod and second support rod respectively.The application can quickly respond to uneven ground conditions through gear screw rod transmission system and sensor monitoring, automatically adjust the height of the shelf, at the same time, the mode of combining electric adjustment with manual adjustment improves the adjustment efficiency and ensures that the device can still be operated in special situations such as power failure, improving the safety and stability of the device. The coordinated adjustment of mounting plate and support foot can adapt to different degrees of ground concave-convex, and the application scenarios are more extensive.

Description

Technical Field

[0001] This utility model relates to the field of mobile shelving technology, specifically a bottom anti-tipping device for mobile shelving. Background Technology

[0002] In terms of data storage security, mobile shelving has confidential and sealed characteristics, excellent dustproof, moisture-proof and rodent-proof performance, which can effectively extend the data preservation period. Its multi-layer sealing structure and the use of special materials provide all-round protection for important data such as archives and securities certificates, avoiding data damage caused by environmental factors.

[0003] Chinese Patent Publication No. CN218008890U discloses a bottom anti-swaying and anti-tipping device for mobile shelving units, belonging to the field of mobile shelving technology. It includes: a base with a limiting frame, the two sides of which are bent inward to form limiting portions; a base frame movably connected to the base, the base frame having a limiting seat, and rotatable limiting wheels on both sides of the limiting seat. The limiting wheels can abut against the limiting portions and roll along the limiting portions. A mobile shelving unit is also provided, with at least four of the aforementioned bottom anti-swaying and anti-tipping devices installed along its direction of movement. The beneficial effects of this invention are: the limiting wheels can abut against the limiting portions and roll along them, thus limiting the tilting of the base frame relative to the base in the front-to-back direction; and the use of rolling friction instead of sliding friction reduces wear between the limiting wheels and the limiting portions.

[0004] In the existing technology, during the use of a mobile shelving bottom anti-swaying and anti-tipping device, the rolling cooperation between the base limiting frame and the base frame limiting wheel can only limit the tilting of the base frame in the front and back direction, and lacks effective protection against swaying and tilting in the left and right direction. When facing lateral thrust, eccentric placement of items, etc., it is difficult to ensure the stability of the mobile shelving. Therefore, we have made improvements and proposed a mobile shelving bottom anti-tipping device. Utility Model Content

[0005] The purpose of this utility model is to address the problem that the current anti-shaking and anti-tipping device for the bottom of mobile shelving has a relatively simple structure and function, and a small protective range.

[0006] To achieve the above-mentioned objectives, this utility model provides the following technical solution:

[0007] A bottom anti-tipping device for mobile shelving units, through a gear and screw transmission system and sensor monitoring, can quickly respond to uneven ground conditions and automatically adjust the height of the mobile shelving units to improve the aforementioned problems.

[0008] The application is as follows:

[0009] A bottom anti-tipping device for a mobile shelving unit includes a mobile shelving unit body. Multiple fixed plates are slidably connected inside the mobile shelving unit body. Racks are fixedly installed on both sides of each fixed plate, and each rack is slidably connected to the mobile shelving unit body. Gears mesh with the outer sides of each rack. First and second support rods are respectively arranged inside the mobile shelving unit body and on both sides of the multiple fixed plates. The first and second support rods are fixedly connected to the gears. Worm gears are fixedly installed at the bottom of each of the second support rods. Reciprocating screws are fixedly installed at the bottom of each of the first support rods and worm gears. The first, second, gears, and reciprocating screws are rotatably connected to the mobile shelving unit body. A mounting plate is provided below each of the first support rods, and a support foot is provided below each of the second support rods. The reciprocating screw passes through the mounting plate and the support foot and is threadedly connected to them.

[0010] As a preferred technical solution of this application, multiple mounting plates are slidably connected to the mobile shelving body, and movable wheels are fixedly installed on the bottom of multiple mounting plates and on the corresponding sides of the first support rod. Multiple support feet pass through the bottom of the mobile shelving body and are slidably connected to it. A worm is engaged on one side of multiple worm gears. Multiple worm gears and worms are rotatably connected to the mobile shelving body. A handle is fixedly installed on one side of multiple worms, and the handle passes through one side of the mobile shelving body and is rotatably connected to it.

[0011] As a preferred technical solution of this application, an auxiliary structure is provided on one side of each of the plurality of worm gears. The auxiliary structure includes a first servo motor, which is fixedly connected to the mobile shelving body. A rotating block is fixedly installed at the output end of the first servo motor. The rotating block is rotatably connected to the mobile shelving body. A first electric telescopic rod is fixedly installed inside the rotating block. An insert is fixedly installed at the output end of the first electric telescopic rod. The insert passes through one side of the rotating block and is slidably connected to it. The insert is inserted into the inside of the worm gear and is slidably connected to it.

[0012] As a preferred technical solution of this application, the mobile shelving body is provided with an L-shaped sliding plate inside, the L-shaped sliding plate passes through one side of the mobile shelving body and is slidably connected to it, the mobile shelving body is provided with a threaded rod and a guide rod inside, a second servo motor is fixedly installed inside the mobile shelving body, the output end of the second servo motor is fixedly connected to the threaded rod, the threaded rod is rotatably connected to the mobile shelving body, and the threaded rod passes through the L-shaped sliding plate and is threadedly connected to it.

[0013] As a preferred technical solution of this application, the guide rod passes through the L-shaped sliding plate and is slidably connected to it. An auxiliary plate is provided on the side of the L-shaped sliding plate away from the mobile shelving body. The auxiliary plate is inserted into the interior of the L-shaped sliding plate and is slidably connected to it. Two second electric telescopic rods are fixedly installed inside the L-shaped sliding plate. The output ends of the two second electric telescopic rods are fixedly connected to the auxiliary plate.

[0014] As a preferred technical solution of this application, displacement sensors are embedded on the side of the L-shaped sliding plate and auxiliary plate away from the mobile shelving body, tilt sensors are embedded on both sides of the bottom of the mobile shelving body, pressure sensors are embedded on the bottom of the multiple support legs, and a control module is provided inside the mobile shelving body. The control module is electrically connected to the first servo motor, the first electric telescopic rod, the second electric telescopic rod, the second servo motor, the displacement sensor, the tilt sensor, and the pressure sensor.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] In the scheme of this application:

[0017] (1) Through the gear screw transmission system and sensor monitoring, it can quickly respond to uneven ground conditions and automatically adjust the height of the mobile shelving. At the same time, the combination of electric adjustment and manual adjustment not only improves the adjustment efficiency, but also ensures that it can still be operated in special circumstances such as power failure, thus improving the safety and stability of the device. The coordinated adjustment of the mounting plate and the support legs can adapt to different degrees of ground unevenness, making it more applicable to a wider range of scenarios.

[0018] (2) Through the linkage structure composed of L-shaped sliding plate and auxiliary plate, the adjacent mobile shelving can be quickly connected when an external force impact is detected. Compared with the independent anti-tipping structure, this device forms an overall support through physical connection, which can effectively disperse the external force and distribute the impact force borne by a single mobile shelving to multiple adjacent mobile shelving. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a side view sectional structural diagram of the present invention;

[0021] Figure 3 This is a partial structural diagram of the present invention;

[0022] Figure 4 This is a frontal cross-sectional view of the present invention.

[0023] Explanation of reference numerals in the accompanying drawings: 1. Mobile shelving unit; 2. Track; 301. First support rod; 302. Second support rod; 4. Gear; 5. Fixing plate; 6. Rack; 7. Reciprocating lead screw; 8. Mounting plate; 9. Worm gear; 10. Worm; 11. Support leg; 12. First servo motor; 13. Rotating block; 14. First electric telescopic rod; 15. Insert block; 16. L-shaped sliding plate; 17. Auxiliary plate; 18. Second electric telescopic rod; 19. Second servo motor; 20. Threaded rod; 21. Displacement sensor; 22. Tilt sensor; 23. Control module. Detailed Implementation

[0024] The present invention will be further described in detail below with reference to the accompanying drawings.

[0025] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

[0026] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0027] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0028] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0029] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0030] Example 1: Please refer to the appendix of the instruction manual. Figure 1-3 A bottom anti-tipping device for a mobile shelving unit includes a mobile shelving unit body 1. Multiple fixed plates 5 are slidably connected inside the mobile shelving unit body 1. Racks 6 are fixedly installed on both sides of each fixed plate 5, and the racks 6 are slidably connected to the mobile shelving unit body 1. Gears 4 mesh with the outer sides of each rack 6. First support rods 301 and second support rods 302 are respectively arranged inside the mobile shelving unit body 1 on both sides of the multiple fixed plates 5. The first support rods 301 and second support rods 302 are fixedly connected to the gears 4. Worm gears 9 are fixedly installed at the bottom of each of the second support rods 302. Reciprocating screws 7 are fixedly installed at the bottom of each of the first support rods 301 and worm gears 9. The first support rods 301, second support rods 302, gears 4, and reciprocating screws 7 are rotatably connected to the mobile shelving unit body 1. Mounting plates 8 are provided below each of the first support rods 301, and support feet 11 are provided below each of the second support rods 302. The reciprocating screws 7 pass through the mounting plates 8 and support feet 11 and are threadedly connected to them.

[0031] In this embodiment of the utility model, a track 2 is provided at the bottom of the mobile shelving body 1. The track 2 provides guidance and support for the movement of the mobile shelving, ensuring that it maintains a stable trajectory during movement. The track 2 is an existing structure, equipped with a limiting structure, which can effectively prevent the mobile shelving from deviating or leaving the track during movement, further enhancing the safety of movement.

[0032] Inside the mobile shelving unit 1, multiple fixed plates 5 are slidably connected. The racks 6 on both sides of the racks slidably engage with the mobile shelving unit 1 and mesh with the gears 4. The gears 4 are connected to the first support rod 301 and the second support rod 302. The latter has a worm gear 9 at its bottom. The reciprocating screw 7 at the bottom of the first support rod 301 and the worm gear 9 passes through the mounting plate 8 and the support leg 11 and is threadedly connected to form the core transmission structure for height adjustment.

[0033] In this embodiment of the utility model, the support legs 11 extend downwards, increasing the contact area between the mobile shelving body 1 and the ground. At the same time, pressure sensors monitor the pressure on the support legs 11 in real time to ensure that the support legs 11 are evenly stressed, effectively enhancing the stability of the mobile shelving body 1 and preventing it from tipping over. The movable wheels on the mounting plate 8 can be moved downwards and into contact with the ground by the support legs 11 moving upwards when the mobile shelving body 1 is moving normally, realizing the convenient movement function of the device. The movable wheels adopt a non-contact connection method through the bottom of the cabinet, reducing the frictional resistance during movement and further improving the practicality of the device.

[0034] Multiple mounting plates 8 are slidably connected to the mobile shelving body 1. Multiple mounting plates 8 are fixedly mounted with movable wheels on their bottom sides and on the corresponding sides of the first support rod 301. Multiple support legs 11 pass through the bottom of the mobile shelving body 1 and are slidably connected to it. Multiple worm gears 9 are engaged with worms 10 on one side. Multiple worm gears 9 and worms 10 are rotatably connected to the mobile shelving body 1. Multiple worms 10 are fixedly mounted with handles on one side, and the handles pass through one side of the mobile shelving body 1 and are rotatably connected to it.

[0035] Each of the multiple worm gears 10 has an auxiliary structure on one side. The auxiliary structure includes a first servo motor 12, which is fixedly connected to the mobile shelving body 1. A rotating block 13 is fixedly installed at the output end of the first servo motor 12. The rotating block 13 is rotatably connected to the mobile shelving body 1. A first electric telescopic rod 14 is fixedly installed inside the rotating block 13. An insert 15 is fixedly installed at the output end of the first electric telescopic rod 14. The insert 15 passes through one side of the rotating block 13 and is slidably connected to it. The insert 15 is inserted into the inside of the worm gear 10 and is slidably connected to it.

[0036] In this embodiment of the utility model, the mounting plate 8 is slidably connected to the mobile shelving body 1, and movable wheels are installed on both sides of its bottom. The movable wheels cooperate with the track 2 to facilitate the smooth movement of the mobile shelving along the track 2. The worm gear 9 meshes with the worm 10 on one side, and the worm 10 passes through the mobile shelving body 1 through a turner for easy manual operation. At the same time, an auxiliary structure consisting of a first servo motor 12, a rotating block 13, a first electric telescopic rod 14, and an insert block 15 is provided on one side of the worm 10 to realize electric control.

[0037] In this embodiment of the invention, the automated control of the worm gear 10 improves the convenience and automation of operation, making it particularly suitable for large mobile shelving units 1 or scenarios requiring frequent adjustments to the height of the support legs 11. Simultaneously, this structure allows the insert block 15 to be retracted when automated operation is not required, avoiding unnecessary energy consumption.

[0038] Example 2: Please refer to the appendix of the instruction manual. Figure 3-4 In a preferred embodiment of the present invention, an L-shaped sliding plate 16 is provided inside the mobile shelving body 1. The L-shaped sliding plate 16 passes through one side of the mobile shelving body 1 and is slidably connected to it. A threaded rod 20 and a guide rod are provided inside the mobile shelving body 1. A second servo motor 19 is fixedly installed inside the mobile shelving body 1. The output end of the second servo motor 19 is fixedly connected to the threaded rod 20. The threaded rod 20 is rotatably connected to the mobile shelving body 1. The threaded rod 20 passes through the L-shaped sliding plate 16 and is threadedly connected to it.

[0039] The guide rod passes through the L-shaped slide plate 16 and is slidably connected to it. An auxiliary plate 17 is provided on the side of the L-shaped slide plate 16 away from the mobile shelving body 1. The auxiliary plate 17 is inserted into the interior of the L-shaped slide plate 16 and is slidably connected to it. Two second electric telescopic rods 18 are fixedly installed inside the L-shaped slide plate 16. The output ends of the two second electric telescopic rods 18 are fixedly connected to the auxiliary plate 17.

[0040] Displacement sensors 21 are embedded on the side of the L-shaped sliding plate 16 and auxiliary plate 17 away from the mobile shelving body 1. Tilt sensors 22 are embedded on both sides of the bottom of the mobile shelving body 1. Pressure sensors are embedded on the bottom of multiple support legs 11. A control module 23 is installed inside the mobile shelving body 1. The control module 23 is electrically connected to the first servo motor 12, the first electric telescopic rod 14, the second electric telescopic rod 18, the second servo motor 19, the displacement sensors 21, the tilt sensors 22 and the pressure sensors.

[0041] In this embodiment of the utility model, the second electric telescopic rod 18 inside the L-shaped slide plate 16 can push the auxiliary plate 17 to extend and retract. In conjunction with the displacement sensor 21, the positions of the L-shaped slide plate 16 and the auxiliary plate 17 can be flexibly adjusted according to actual needs for auxiliary support or use in conjunction with other equipment, thereby enhancing the multifunctionality and adaptability of the mobile shelving body 1.

[0042] In this embodiment of the utility model, the control module 23 is connected to the displacement sensor 21, the tilt sensor 22, and the pressure sensor via a data line to receive displacement, tilt angle, and bottom force data in real time; it is connected to the first servo motor 12 and other actuators via a control line to precisely control the movement of the motor and the telescopic rod; the external controller interacts with the control module 23 via a communication line, supports parameter setting, status monitoring, and manual operation, and adopts a standardized interface to ensure connection stability and maintainability.

[0043] Working principle: Multiple sensors work together to provide data support for the stable operation of the mobile shelving unit 1. The tilt sensor 22 monitors the tilt angle. When the tilt angle exceeds the threshold, the control module 23 activates the anti-tipping program, adjusting the height of the support legs 11, the position of the L-shaped slide plate 16 and the auxiliary plate 17; the pressure sensor ensures that the support legs 11 are subjected to balanced force; the displacement sensor 21 provides feedback on the position of the slide plate and the auxiliary plate 17, achieving precise adjustment.

[0044] By installing an infrared detector on the mobile shelving unit 1, and simultaneously configuring the sleep and wake-up mechanisms of the device via the control module 23, the control module 23 automatically shuts off the power to non-essential components when the mobile shelving unit 1 is not in use for an extended period. For example, when there is no risk of tilting and the support legs 11 are in a fixed position, the first servo motor 12 and the second servo motor 19 are turned off, leaving only the sensors and the control module 23 in a low-power monitoring state. When the infrared detector detects that someone is approaching or that the mobile shelving unit 1 shows signs of movement or tilting, the relevant components are promptly woken up to resume normal operation, reducing power consumption when the mobile shelving unit 1 is idle.

[0045] When the tilt sensor 22 detects that the mobile shelving is tilted or the pressure sensor senses that the ground is uneven, the control module 23 sends a command to the first servo motor 12. The first servo motor 12 drives the rotating block 13 to rotate, and at the same time, the first electric telescopic rod 14 extends the insert block 15. The side of the insert block 15 near the worm gear 10 is set in a cross shape, so that it is inserted into the worm gear 10 and drives the worm gear 10 to rotate. The rotation of the worm gear 10 causes the worm wheel 9 to drive the second support rod 302 to rotate, and then adjusts the extension length of the support leg 11 through the reciprocating screw 7. At the same time, the first support rod 301 rotates synchronously, driving the reciprocating screw 7 to adjust the height of the mounting plate 8, so that the mobile shelving remains horizontal and stable.

[0046] When the displacement sensor 21 detects that a certain column of mobile shelving is displaced by an external force, the control module 23 controls the second servo motor 19 to start, driving the threaded rod 20 to rotate, so that the L-shaped sliding plate 16 extends and inserts into the adjacent mobile shelving for connection. When the spacing between the mobile shelving changes due to installation errors, minor displacements during use, etc., the second electric telescopic rod 18 pushes the auxiliary plate 17 to extend for assistance, realizing the linkage anti-tilting of multiple columns of mobile shelving and jointly resisting the impact of external forces.

[0047] In addition to intelligent control, staff can manually adjust the height of the support leg 11 and the mounting plate 8 by rotating the handle on the worm gear 10. When the mobile shelving unit is moved, the support leg 11 can be retracted and the unit can move on the track 2 by relying on the moving wheels. After reaching the designated position, the support leg 11 can be put down and fixed.

[0048] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall fall within the scope of the technical solution of the present utility model.

Claims

1. A bottom anti-tipping device for a mobile shelving unit, comprising a mobile shelving unit body (1), characterized in that, The mobile shelving unit (1) has multiple fixed plates (5) slidably connected inside. Racks (6) are fixedly installed on both sides of each fixed plate (5). Each rack (6) is slidably connected to the mobile shelving unit (1). Gears (4) mesh with the outer sides of each rack (6). First support rods (301) and second support rods (302) are respectively provided inside the mobile shelving unit (1) and on both sides of the multiple fixed plates (5). The first support rods (301) and second support rods (302) are fixedly connected to the gears (4). The second support rods... A worm gear (9) is fixedly installed at the bottom of each of the (302) units. A reciprocating screw (7) is fixedly installed at the bottom of each of the first support rods (301) and the worm gear (9). The first support rods (301), the second support rods (302), the gear (4) and the reciprocating screw (7) are rotatably connected to the mobile shelving body (1). An installation plate (8) is provided below each of the first support rods (301). A support foot (11) is provided below each of the second support rods (302). The reciprocating screw (7) passes through the installation plate (8) and the support foot (11) and is threadedly connected to them.

2. The anti-tipping device at the bottom of a mobile shelving unit according to claim 1, characterized in that, Multiple mounting plates (8) are slidably connected to the mobile shelving body (1). Multiple mounting plates (8) are fixedly mounted with movable wheels on the bottom and on the corresponding sides of the first support rod (301). Multiple support legs (11) pass through the bottom of the mobile shelving body (1) and are slidably connected to it. Multiple worm gears (9) are engaged with worms (10) on one side. Multiple worm gears (9) and worms (10) are rotatably connected to the mobile shelving body (1). Multiple worms (10) are fixedly mounted with a handle on one side, and the handle passes through one side of the mobile shelving body (1) and is rotatably connected to it.

3. The anti-tipping device at the bottom of a mobile shelving unit according to claim 2, characterized in that, Each of the multiple worm gears (10) is provided with an auxiliary structure on one side. The auxiliary structure includes a first servo motor (12). The first servo motor (12) is fixedly connected to the mobile shelving body (1). A rotating block (13) is fixedly installed at the output end of the first servo motor (12). The rotating block (13) is rotatably connected to the mobile shelving body (1). A first electric telescopic rod (14) is fixedly installed inside the rotating block (13). An insert (15) is fixedly installed at the output end of the first electric telescopic rod (14). The insert (15) passes through one side of the rotating block (13) and is slidably connected to it. The insert (15) is inserted into the inside of the worm gear (10) and is slidably connected to it.

4. The anti-tipping device at the bottom of a mobile shelving unit according to claim 1, characterized in that, The mobile shelving unit (1) is provided with an L-shaped sliding plate (16) inside. The L-shaped sliding plate (16) passes through one side of the mobile shelving unit (1) and is slidably connected to it. The mobile shelving unit (1) is provided with a threaded rod (20) and a guide rod inside. The mobile shelving unit (1) is fixedly installed with a second servo motor (19) inside. The output end of the second servo motor (19) is fixedly connected to the threaded rod (20). The threaded rod (20) is rotatably connected to the mobile shelving unit (1). The threaded rod (20) passes through the L-shaped sliding plate (16) and is threadedly connected to it.

5. The anti-tipping device at the bottom of a mobile shelving unit according to claim 4, characterized in that, The guide rod passes through the L-shaped slide plate (16) and is slidably connected to it. An auxiliary plate (17) is provided on the side of the L-shaped slide plate (16) away from the mobile shelving body (1). The auxiliary plate (17) is inserted into the interior of the L-shaped slide plate (16) and is slidably connected to it. Two second electric telescopic rods (18) are fixedly installed inside the L-shaped slide plate (16). The output ends of the two second electric telescopic rods (18) are fixedly connected to the auxiliary plate (17).

6. The anti-tipping device for the bottom of a mobile shelving unit according to claim 4, characterized in that, The L-shaped sliding plate (16) and the auxiliary plate (17) are each embedded with a displacement sensor (21) on the side away from the mobile shelving body (1). The bottom sides of the mobile shelving body (1) are each embedded with a tilt sensor (22). The bottom of the multiple legs (11) is embedded with a pressure sensor. The mobile shelving body (1) is equipped with a control module (23). The control module (23) is electrically connected to the first servo motor (12), the first electric telescopic rod (14), the second electric telescopic rod (18), the second servo motor (19), the displacement sensor (21), the tilt sensor (22), and the pressure sensor.

Images