Mobile shelving with retractable trays

Abstract

The utility model discloses a mobile goods shelf with rearward material tray, including goods shelf body, track mechanism and drive mechanism, the goods shelf body includes vertical pole, crosspiece and material tray guide rail, the material tray guide rail is slidably connected with material tray group, the material tray group includes a plurality of stacked material tray, the track mechanism includes goods shelf guide rail, the drive mechanism includes drive motor, speed reducer, drive wheel and guide wheel, drive wheel and guide wheel are fixed at the bottom both ends of goods shelf body respectively, drive motor and speed reducer are all fixed in the one end of goods shelf body close to drive wheel, drive motor is connected with speed reducer transmission, speed reducer is connected with drive wheel transmission. This mobile goods shelf with rearward material tray has advanced design, compact structure, convenient to use, reliable operation, not only has improved the storage efficiency of goods, still strengthened the security and stability of goods shelf, has extensive application prospect.

Description

Technical Field

[0001] This utility model belongs to the field of logistics racking technology, specifically relating to a mobile rack with a retractable pallet. Background Technology

[0002] Electric mobile racking is a highly efficient space utilization and automated storage solution in logistics warehousing. It combines the advantages of high-density storage and automated control, making it particularly suitable for scenarios with large storage volumes, diverse product types, but where the requirements for access efficiency are not as stringent as those for automated storage and retrieval systems (AS / RS). Traditional fixed racking requires aisles between personnel and equipment; electric mobile racking "dynamically" makes these aisles: multiple rows of racks are placed side-by-side on tracks laid on the ground. Only when goods on a particular row need to be accessed will that row be driven by a motor to move along the tracks, creating a temporary aisle between adjacent racks for personnel or equipment to enter. After access is complete, the racks return to their original position, the aisle disappears, and space is significantly reduced. By eliminating fixed aisles (retaining only 1-2 main aisles for equipment scheduling), space utilization can reach 80% or even higher, saving 40%-70% of floor space compared to traditional racking (typically 50%-60%). This is significant for warehouses with high land costs or limited space.

[0003] Electric mobile shelving systems have some drawbacks in use. For example, only one aisle can be opened at a time, and the aisle formation takes a certain amount of time (usually tens of seconds to one or two minutes). Frequent aisle switching affects efficiency and makes them unsuitable for scenarios requiring extremely high throughput (such as the core warehouse of an e-commerce sorting center) or instantaneous random access. Therefore, there is an urgent need to design a mobile shelving system with a backward-moving pallet to solve the above problems. Utility Model Content

[0004] The purpose of this utility model is to provide a mobile shelf with a retractable tray to solve the problems existing in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a mobile shelf with a retractable tray, comprising: The main body of the shelf includes uprights, crossbars and a tray guide rail fixed to the top of the crossbars. A tray group is slidably connected on the tray guide rail. Several grooves are provided on both sides of the tray guide rail. The tray group includes several stacked trays. The two sides of the several trays are slidably connected to their corresponding grooves by sliders. The track mechanism includes shelf guide rails disposed on both sides of the bottom of the shelf body; The drive mechanism includes a drive motor, a reduction gear, a drive wheel, and a guide wheel. The drive wheel and the guide wheel are respectively fixed at both ends of the bottom of the rack body and are rotatably connected to the rack guide rail. The drive motor and the reduction gear are both fixed at the end of the rack body near the drive wheel. The drive motor is driven by the reduction gear, and the reduction gear is driven by the drive wheel.

[0006] Furthermore, the uprights are provided with several insertion holes, and diagonal braces are provided between two adjacent uprights.

[0007] Furthermore, insert plates are fixed at both ends of the crossbar. The cross-section of the insert plate is U-shaped. Several limiting blocks matching the insertion holes are provided on the inner side wall of the insert plate. The insert plate is sleeved on the upright and fixedly connected by bolts.

[0008] Furthermore, it also includes a control mechanism, which includes an electrical control box, a position sensor, and a safety sensor. The electrical control box is fixed to one end of the main body of the shelf, the position sensor is fixed to the other end of the main body of the shelf, and the safety sensor is fixed to both sides of the main body of the shelf.

[0009] Furthermore, it also includes a safety mechanism, which includes a locking device, an audible and visual alarm, and a buffer device. The locking device is located at one end of the main body of the shelf, the audible and visual alarm is fixed at the top of the main body of the shelf, and the buffer device is fixed at both ends of the bottom of the main body of the shelf.

[0010] Furthermore, the outer side of the electrical control box is provided with an operation panel, which is equipped with a start button, a number button, a confirmation button and an emergency stop button. The operation panel is internally connected to a PLC, which is electrically connected to a drive motor, a position sensor, a safety sensor, a locking device and an audible and visual alarm.

[0011] Furthermore, the position sensor includes a sensing probe fixed to one end of the shelf body and a trigger baffle fixed to the ground.

[0012] Furthermore, the locking device includes an electric telescopic rod fixed to one end of the shelf body and a limiting groove fixed to the ground. The distance between the electric telescopic rod and the sensor probe and the distance between the limiting groove and the corresponding trigger stop are the same.

[0013] The technical effects and advantages of this utility model are as follows: This mobile rack with a retractable pallet design is advanced, compact, easy to use, and reliable in operation. By setting pallet guide rails and pallet groups, multiple pallets can be stacked together. When goods are placed on the top pallet in the pallet group, the pallet moves backward along the pallet guide rail, allowing for continued placement of goods without switching channels, thus avoiding frequent channel switching and greatly improving the storage efficiency of goods. Through precise control of the drive motor and reduction device, the rack body moves smoothly on the rack guide rail, ensuring the safe storage and retrieval of goods. At the same time, the retractable design of the pallets in the pallet group allows each layer of pallets to effectively utilize space, increasing the storage capacity of the rack. In addition, the setting of control and safety mechanisms further enhances the automation and safety of the rack. Among them, position sensors and safety sensors can monitor the status of the rack in real time, ensuring the stability and safety of the rack during movement. Locking devices and audible and visual alarms can respond quickly in emergencies to prevent accidents. Buffer devices can effectively reduce the impact of the rack during movement and extend the service life of the rack. In conclusion, this mobile shelving unit with a retractable pallet not only improves the storage efficiency of goods but also enhances the safety and stability of the shelving unit, and has broad application prospects. Attached Figure Description

[0014] Figure 1 This is the front view of the present invention; Figure 2 This is the left view of the present invention; Figure 3 This is a top view of the present invention.

[0015] In the diagram: 100, Shelf body; 101, Upright; 1011, Insertion hole; 1012, Diagonal brace; 102, Horizontal bar; 1021, Insert plate; 103, Tray guide rail; 104, Tray assembly; 1041, Tray; 105, Slide rail; 200, Track mechanism; 201, Shelf guide rail; 300, Drive mechanism; 301, Drive motor; 302, Reducer; 303, Drive wheel; 304, Guide wheel; 400, Control mechanism; 401, Electrical control box; 4011, Operation panel; 402, Position sensor; 403, Safety sensor; 500, Safety mechanism; 501, Locking device; 502, Audible and visual alarm; 503, Buffer device. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0018] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0019] This utility model provides, for example Figure 1-3 The mobile shelving unit shown in the figure includes: The shelving body 100 includes uprights 101, crossbars 102, and a tray guide rail 103 fixed to the top of the crossbars 102. A tray assembly 104 is slidably connected to the tray guide rail 103. Several grooves 105 are provided on both sides of the tray guide rail 103. The tray assembly 104 includes several stacked trays 1041. The two sides of the several trays 1041 are slidably connected to their corresponding grooves 105 by sliders. The track mechanism 200 includes shelf guide rails 201 disposed on both sides of the bottom of the shelf body 100; The drive mechanism 300 includes a drive motor 301, a reduction gear 302, a drive wheel 303, and a guide wheel 304. The drive wheel 303 and the guide wheel 304 are respectively fixed at both ends of the bottom of the rack body 100 and are rotatably connected to the rack guide rail 201. The drive motor 301 and the reduction gear 302 are both fixed at the end of the rack body 100 near the drive wheel 303. The drive motor 301 is connected to the reduction gear 302 in a transmission connection, and the reduction gear 302 is connected to the drive wheel 303 in a transmission connection.

[0020] For example, see Figure 1 As shown, the upright 101 is provided with several insertion holes 1011, and a diagonal tie rod 1012 is provided between two adjacent uprights 101.

[0021] In this technical solution, adjacent uprights 101 are connected by diagonal braces 1012, enhancing the structural stability of the rack body 100 and ensuring the overall structure remains robust and safe even under high loads. The diagonal braces 1012 not only improve the rack's load-bearing capacity but also help resist external impacts, protecting the rack and stored goods from damage. Furthermore, the diagonal braces 1012 are easy and quick to install, requiring no complex construction steps, thus reducing installation costs and time.

[0022] For example, see Figure 1 As shown, the two ends of the crossbar 102 are fixed with insert plates 1021. The cross section of the insert plate 1021 is a "U" shaped structure. The inner side wall of the insert plate 1021 is provided with several limiting blocks that match the insertion holes 1011. The insert plate 1021 is sleeved on the upright 101 and fixedly connected by bolts.

[0023] In this technical solution, the crossbar 102 engages with the insertion hole 1011 of the upright 101 via a insert plate 1021 and is secured with bolts, achieving a stable connection between the crossbar 102 and the upright 101. This connection method not only enhances the overall stability of the shelving body 100 but also facilitates disassembly and reassembly, improving the flexibility and adaptability of the shelving. Furthermore, the U-shaped structure design of the insert plate 1021 makes the connection between the crossbar 102 and the upright 101 even tighter, effectively preventing swaying and deformation of the shelving during use, further ensuring the safe storage of goods.

[0024] For example, see Figure 1 As shown, it also includes a control mechanism 400, which includes an electrical control box 401, a position sensor 402, and a safety sensor 403. The electrical control box 401 is fixed to one end of the shelf body 100, the position sensor 402 is fixed to the other end of the shelf body 100, and the safety sensor 403 is fixed to both sides of the shelf body 100.

[0025] In this technical solution, the control mechanism 400 enables operators to remotely control the rack through the electrical control box 401, improving the convenience and efficiency of operation. The position sensor 402 can monitor the position information of the rack body in real time, ensuring the accuracy and stability of the rack during movement. The safety sensor 403 is responsible for monitoring the safety conditions around the rack. Once an abnormality is detected, the safety mechanism is immediately triggered to ensure the safety of personnel and goods.

[0026] For example, see Figure 1 As shown, it also includes a safety mechanism 500, which includes a locking device 501, an audible and visual alarm 502, and a buffer device 503. The locking device 501 is located at one end of the shelf body 100, the audible and visual alarm 502 is fixed at the top of the shelf body 100, and the buffer device 503 is fixed at both ends of the bottom of the shelf body 100.

[0027] In this technical solution, the locking device 501 automatically extends and engages with the limiting groove after the shelf body 100 is moved into place, thus fixing the shelf body 100 and preventing it from moving due to unexpected circumstances. This ensures the stability and safety of the shelf body 100. Simultaneously, when the shelf body 100 needs to be moved, the locking device 501 automatically retracts without hindering its normal movement. The audible and visual alarm 502 emits audible and visual signals when the shelf body 100 encounters an abnormal situation or when an operator triggers the alarm, alerting surrounding personnel to take timely countermeasures and prevent accidents. The buffer device 503 uses rubber buffer blocks, which buffer the movement of the shelf body 100, reducing the impact force on the shelf body 100 and protecting the shelf body 100 and stored goods from damage.

[0028] For example, see Figure 1 As shown, the outer side of the electrical control box 401 is provided with an operation panel 4011. The operation panel 4011 is provided with a start button, a number button, a confirmation button and an emergency stop button. The operation panel 4011 is internally connected to a PLC. The PLC is electrically connected to the drive motor 301, the position sensor 402, the safety sensor 403, the locking device 501 and the audible and visual alarm 502 respectively.

[0029] In this technical solution, the design of the operation panel 4011 allows operators to intuitively control the operation of the rack body 100. The start button is used to start the movement of the rack body 100, the digital buttons can be used to input specific rack body 100 positions or parameters, the confirmation button is used to confirm operation commands, and the emergency stop button can quickly stop the operation of the rack body 100 in an emergency to ensure safety. The PLC, as the control core, can receive commands from the operation panel 4011 and control the start, stop, and speed of the drive motor 301 according to a preset program. Simultaneously, the PLC can also receive feedback information from the position sensor 402 and the safety sensor 403 in real time, monitoring and controlling the position and safety status of the rack body 100. Once the position sensor 402 detects that the rack body 100 has reached the preset position, the PLC controls the drive motor 301 to stop running and uses the locking device 501 to fix the rack body 100. If the safety sensor 403 detects an abnormality, the PLC immediately triggers the audible and visual alarm 502 and can control the drive motor 301 to reverse or stop to prevent accidents.

[0030] For example, see Figure 1 As shown, the position sensor 402 includes a sensing probe fixed to one end of the shelf body 100 and a trigger baffle fixed to the ground.

[0031] In this technical solution, the position sensor 402 can be a contact sensor (such as a potentiometer) or a non-contact sensor (such as an ultrasonic sensor). The cooperation between the sensing probe and the trigger stop enables precise detection of the position of the rack body 100. When the rack body 100 moves to the preset position, the sensing probe contacts the trigger stop or reaches the set distance. At this time, the position sensor 402 outputs a signal. After receiving the signal, the PLC controls the drive motor 301 to stop running and fixes the rack body 100 through the locking device 501. This design not only improves the accuracy of the rack body 100's positioning but also helps to avoid damage or safety hazards caused by over- or misaligned rack body 100. At the same time, the sensing probe and trigger stop are easy to install and have low maintenance costs, improving the practicality and economy of the rack body.

[0032] For example, see Figure 1 As shown, the locking device 501 includes an electric telescopic rod fixed to one end of the shelf body 100 and a limiting groove fixed to the ground. The distance between the electric telescopic rod and the sensor probe and the distance between the limiting groove and the corresponding trigger stop are the same.

[0033] In this technical solution, the electric telescopic rod can automatically extend or retract after receiving a control signal from the PLC. When the rack body 100 moves to a preset position, the position sensor 402 outputs a signal. Upon receiving this signal, the PLC controls the electric telescopic rod to extend and engage in the limiting groove, thus fixing the rack body 100. This design ensures that the rack body 100 can be quickly and stably fixed after being moved into position, preventing movement of the rack body 100 due to unexpected situations, and improving the safety and stability of the rack body 100. At the same time, the distances between the electric telescopic rod and the sensor probe, and between the limiting groove and the trigger stop, are the same, ensuring the accuracy of the rack body 100's positioning and the reliability of the locking device 501.

[0034] Working Principle: When using this mobile rack with a retractable pallet, the operator first inputs commands through the operation panel 4011 on the control box 401. The PLC then controls a specific drive motor 301 to start according to the preset program. The drive motor 301 drives the drive wheel 303 to rotate through the reduction gear 302, thereby moving the rack body 100 along the rack guide rail 201. At the same time, the position sensor 402 and safety sensor 403 provide real-time feedback on the position and safety status information of the rack body 100, ensuring the stability and safety of the rack during movement. When the rack body 100 moves to the preset position... The PLC-controlled electric telescopic rod extends and engages with the limiting groove, fixing the rack body 100. At this point, a channel is formed between the specific rack bodies 100, facilitating direct access to and placement of goods. When goods are placed on the top tray 1041 of the tray group 104, the tray 1041 moves backward along the tray guide rail 103, allowing for continued placement of goods without switching channels, thus avoiding frequent channel switching and significantly improving storage efficiency. Furthermore, the control mechanism 400 and safety mechanism 500 further enhance the automation and safety of the rack. In summary, this mobile rack with a backward-moving tray not only improves storage efficiency but also enhances the safety and stability of the rack, showing broad application prospects.

[0035] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A mobile shelving unit with a retractable pallet, characterized in that, include: The shelf body (100) includes uprights (101), crossbars (102) and a tray guide rail (103) fixed to the top of the crossbars (102). A tray group (104) is slidably connected to the tray guide rail (103). Several grooves (105) are provided on both sides of the tray guide rail (103). The tray group (104) includes several stacked trays (1041). The two sides of the several trays (1041) are slidably connected to their corresponding grooves (105) by sliders. The track mechanism (200) includes shelf guide rails (201) disposed on both sides of the bottom of the shelf body (100). The drive mechanism (300) includes a drive motor (301), a reduction gear (302), a drive wheel (303), and a guide wheel (304). The drive wheel (303) and the guide wheel (304) are respectively fixed at both ends of the bottom of the shelf body (100) and are rotatably connected to the shelf guide rail (201). The drive motor (301) and the reduction gear (302) are both fixed at one end of the shelf body (100) near the drive wheel (303). The drive motor (301) is connected to the reduction gear (302) in a transmission connection, and the reduction gear (302) is connected to the drive wheel (303) in a transmission connection.

2. The mobile shelving unit with a retractable pallet according to claim 1, characterized in that: The upright (101) is provided with a number of insertion holes (1011), and a tie rod (1012) is provided between two adjacent uprights (101).

3. The mobile shelving unit with a retractable pallet according to claim 2, characterized in that: The crossbar (102) is fixed with insert plates (1021) at both ends. The cross section of the insert plate (1021) is a "U" shaped structure. The inner side wall of the insert plate (1021) is provided with several limiting blocks that match the insertion holes (1011). The insert plate (1021) is sleeved on the upright (101) and fixedly connected by bolts.

4. The mobile shelving unit with a retractable pallet according to claim 1, characterized in that: It also includes a control mechanism (400), which includes an electrical control box (401), a position sensor (402), and a safety sensor (403). The electrical control box (401) is fixed at one end of the shelf body (100), the position sensor (402) is fixed at the other end of the shelf body (100), and the safety sensor (403) is fixed on both sides of the shelf body (100).

5. The mobile shelving unit with a retractable pallet according to claim 4, characterized in that: It also includes a safety mechanism (500), which includes a locking device (501), an audible and visual alarm (502), and a buffer device (503). The locking device (501) is located at one end of the shelf body (100), the audible and visual alarm (502) is fixed at the top of the shelf body (100), and the buffer device (503) is fixed at both ends of the bottom of the shelf body (100).

6. The mobile shelving unit with a retractable pallet according to claim 5, characterized in that: The outer side of the electrical control box (401) is provided with an operation panel (4011). The operation panel (4011) is provided with a start button, a number button, a confirmation button and an emergency stop button. The operation panel (4011) is electrically connected to a PLC. The PLC is electrically connected to the drive motor (301), the position sensor (402), the safety sensor (403), the locking device (501) and the audible and visual alarm (502).

7. The mobile shelving unit with a retractable pallet according to claim 5, characterized in that: The position sensor (402) includes a sensing probe fixed to one end of the shelf body (100) and a trigger baffle fixed to the ground.

8. The mobile shelving unit with a retractable pallet according to claim 7, characterized in that: The locking device (501) includes an electric telescopic rod fixed to one end of the shelf body (100) and a limiting groove fixed to the ground. The distance between the electric telescopic rod and the sensor probe and the distance between the limiting groove and the corresponding trigger stop are the same.

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