A new type of pull-out plate rack

Abstract

The utility model relates to the technical field of warehouse shelves, and specifically relates to a novel pullable plate material shelf, which comprises: a frame, a plurality of goods plate racks slidingly arranged in the frame, and guide rails arranged on the sliding-out paths of the goods plate racks to guide the sliding of the goods plate racks; a shared power source; a surrounding transmission mechanism in transmission connection with the power source to synchronously convert the rotation of a single output shaft of the power source into the rotation of a plurality of output points. The utility model drives the surrounding transmission mechanism by a shared power source, thereby synchronously driving the rotation of all output points. When it is necessary to operate the goods plate racks of a certain layer, the power is transmitted from the output points to the driving member by controlling the corresponding clutch structure of the layer, the driving member and the driven member fixed on the goods plate racks interact with each other, the rotary motion is converted into the linear motion of the goods plate racks, and single low-cost power source is used to realize the automatic storage and taking of the multi-layer shelves, thereby significantly reducing the labor intensity and equipment cost.

Description

Technical Field

[0001] This utility model relates to the field of warehouse racking technology, and in particular to a novel pull-out sheet metal rack. Background Technology

[0002] In areas such as sheet metal processing workshops, multi-level pull-out shelves are common storage equipment. (Refer to the attached document.) Figure 6 As shown, this type of shelving typically consists of a frame, sliding multi-layer pallet racks, and guide rails. It is also often equipped with an openable door frame with auxiliary guide rails on the side. When storing or retrieving materials, operators need to manually pull out or push back the pallet racks carrying heavy objects along the guide rails. This manual operation method constitutes the basic working mode of existing technology.

[0003] However, when pallet racks bear several tons of pallet material, the enormous friction makes manual pushing and pulling operations extremely laborious, not only inefficient but also posing safety risks and failing to meet the ergonomic requirements of modern production. To overcome this deficiency, existing technologies have proposed an automated solution that equips each pallet rack with a separate motor or push rod. While this solves the labor-saving problem, the number of drive devices is proportional to the number of layers, leading to a significant increase in equipment cost, control system complexity, and failure rate.

[0004] Therefore, there is an urgent need in this field for an innovative solution that can both reduce the effort and automate the operation, and fundamentally avoid the dual pressures of cost and energy consumption brought about by the "one-layer-one-drive" model. Utility Model Content

[0005] In view of this, the purpose of this utility model is to propose a new type of pull-out shelving unit to solve the above-mentioned technical problems.

[0006] To achieve the above objectives, this utility model provides a novel pull-out shelving unit for sheet materials, comprising: A frame, multiple pallet racks slidably disposed within the frame, and guide rails disposed on the sliding path of the pallet racks to guide their sliding motion; A shared power source; A surrounding transmission mechanism is connected to the power source to synchronously convert the rotation of a single output shaft of the power source into the rotation of multiple output points; Multiple conversion mechanisms, each of which includes a drive component rotatably connected to the frame, and a driven component fixed to the pallet rack and adapted to the drive component. The driven component is used to convert the axial rotational motion of the drive component into its own linear motion, thereby driving the pallet rack to slide synchronously. A clutch structure is provided between the output point and the driving element for selectively coupling or disconnecting any of the driving elements from the corresponding output point.

[0007] As a preferred embodiment of this utility model, the power source includes an electric motor.

[0008] As a preferred embodiment of this utility model, a motor mounting plate is provided on the outer side of the frame, which is used to support and fix the motor.

[0009] As a preferred embodiment of this utility model, the surrounding transmission mechanism includes a closed-loop transmission belt and multiple pulleys, all of which mesh or frictionally engage with the transmission belt and are tensioned by it, and the power source is connected to one of the pulleys in a transmission connection.

[0010] As a preferred embodiment of this utility model, the frame is provided with multiple supports, each of which is rotatably connected to a rotating shaft, one end of which is fixedly connected to a pulley.

[0011] As a preferred embodiment of this utility model, the driving component is a gear, one end of which is connected to a rotating rod, which is rotatably connected to the frame, and the driven component is a rack fixed to the bottom of the pallet frame and meshing with the gear.

[0012] As a preferred embodiment of this utility model, the clutch structure includes: The first transmission component has one end fixedly connected to the rotating shaft; The telescopic component has one end fixedly connected to the rotating rod and the other end connected to a second transmission component. When the telescopic component pushes the second transmission component to press against the first transmission component, the rotating shaft can be connected to the rotating rod by the friction between the contact surfaces of the second transmission component and the first transmission component.

[0013] As a preferred embodiment of this utility model, the first transmission component is a clutch plate, the second transmission component is a pressure plate, the telescopic component is an electric actuator, the base of the electric actuator is fixedly connected to the rotating rod through a connecting plate, and the telescopic head of the electric actuator is fixedly connected to the second transmission component.

[0014] As a preferred embodiment of this utility model, the bottom of the pallet frame is rotatably connected to a pulley adapted to the guide rail.

[0015] As a preferred embodiment of this utility model, the shelf further includes: At least two door frames are rotatably connected to one end of the frame; Multiple first guide rails are mounted on the frame; Multiple second guide rails are provided on the door frame, and the first and second guide rails can be joined together to form a long guide rail for guiding the pallet rack to slide out when the door frame is opened.

[0016] The beneficial effects of this utility model are as follows: This utility model drives a circular transmission mechanism through a common power source, thereby synchronously driving all output points to rotate. When it is necessary to operate a certain layer of the pallet rack, the power is transmitted from the output point to the driving component by controlling the clutch structure corresponding to that layer. The driving component interacts with the driven component fixed on the pallet rack, converting the rotational motion into the linear motion of the pallet rack. It is a centralized drive with selective engagement, realizing the automated storage and retrieval of multi-layer racks with a single low-cost power source, significantly reducing labor intensity and equipment costs. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the main structure of this utility model; Figure 3 This is a side view of the structure of this utility model; Figure 4 This is a three-dimensional structural diagram of the frame, motor, pulley, transmission belt, pallet rack, pulley and first guide rail of this utility model; Figure 5 This is a three-dimensional structural diagram of the frame, bracket, pulley, first transmission component, second transmission component, electric actuator, rotating shaft, and gear of this utility model; Figure 6 This is a schematic diagram of the existing shelving structure.

[0019] The components in the diagram are labeled as follows: 1. Frame; 2. Door frame; 3. First guide rail; 4. Second guide rail; 5. Pallet rack; 6. Pulley; 7. Handle; 8. Motor mounting plate; 9. Motor; 10. Bracket; 11. Pulley; 12. First transmission component; 13. Rotating rod; 14. Connecting plate; 15. Electric actuator; 16. Second transmission component; 17. Gear; 18. Rack; 19. Transmission belt. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments.

[0021] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0022] like Figure 1 , Figure 2 and Figure 3 As shown, a novel pull-out shelving unit includes: a frame 1, multiple shelving units 5 slidably disposed within the frame 1, and guide rails disposed on the sliding path of the shelving units 5 to guide their sliding; a common power source, including a motor 9; a surrounding transmission mechanism, which is connected to the power source for synchronously converting the rotation of a single output shaft of the power source into the rotation of multiple output points; multiple conversion mechanisms, each including a drive member rotatably connected to the frame 1, and a driven member fixed to the shelving units 5 and adapted to the drive member, the driven member being used to convert the axial rotational motion of the drive member into its own linear motion, thereby driving the shelving units 5 to slide synchronously; and a clutch structure disposed between the output points and the drive members for selectively coupling or disconnecting any drive member from the corresponding output point. The above technical solution solves the problems of high cost and complex control systems caused by the need for independent drive sources for each layer in traditional multi-layer racking, as well as the pain points of manual pushing and pulling of heavy pallet racks 5, which are laborious and pose safety hazards. Its core lies in the design of a transmission system combining centralized drive and distributed clutch. The racking system has a common power source, preferably a worm gear reducer motor with a brake, ensuring self-locking in the event of a power outage. This power source drives a circular transmission mechanism that synchronously distributes a single input power to multiple output points, each corresponding to a pallet rack layer. Each pallet layer is equipped with a conversion mechanism, which includes a drive component rotatably connected to the frame 1 and a driven component fixed to the bottom of the pallet rack 5. These two components work together to convert rotational motion into linear motion. Simultaneously, a clutch structure is provided between each output point and the drive component, which can be independently controlled to achieve selective on / off of power. Specifically, its working principle is as follows: the power source continuously drives the surrounding transmission mechanism, keeping all output points in standby mode; when a certain shelf layer needs to be operated, simply control the engagement of the clutch structure of that layer to transmit power to the conversion mechanism of that layer, driving the shelf movement; after the operation is completed, the clutch structure disengages, and the power is cut off. The operation steps include: first, selecting the target shelf layer, activating the clutch structure of that layer through the control panel or remote control, and after receiving the engagement confirmation signal, starting the power source to rotate forward or reverse, and the pallet rack 5 will automatically extend or retract. A single low-cost drive source enables selective automated storage and retrieval of multi-layer shelves, significantly reducing equipment manufacturing costs and energy consumption, and significantly improving operational convenience and safety.

[0023] like Figure 1 , Figure 2 and Figure 4 As shown, in this embodiment, a motor mounting plate 8 is provided on the outer side of the frame 1. The motor mounting plate 8 is used to support and fix the motor 9. The above technical solution solves the problem of motor 9 shifting or loosening due to vibration during operation, affecting the smoothness and lifespan of the transmission system. Specifically, a motor mounting plate 8 is welded or bolted to the side of the frame 1. This mounting plate is made of steel plate of sufficient thickness and has mounting holes and adjustment slots that match the base of motor 9. In use, motor 9 is firmly secured to the motor mounting plate 8 with bolts, ensuring stable installation of the power source, improving the overall rigidity of the system, and facilitating installation, commissioning, and subsequent maintenance.

[0024] like Figure 1 , Figure 3 and Figure 4 As shown, in this embodiment, the surrounding transmission mechanism includes a closed-loop transmission belt 19 and multiple pulleys 11. The multiple pulleys 11 are engaged or frictionally connected with the transmission belt 19 and are tensioned by it. The power source is connected to one of the pulleys 11 in a transmission connection. The above technical solution solves the problem of how to efficiently, cost-effectively, and smoothly transmit central power synchronously to multiple spatially discrete levels. Specifically, the surrounding transmission mechanism is implemented as a belt drive system. It includes a closed annular transmission belt 19, which can be a V-belt, flat belt, or synchronous belt, and multiple pulleys 11, the number of which corresponds to the number of shelf layers. These pulleys 11 are mounted on the same side of the frame 1 via bearing seats or brackets 10, arranged longitudinally. The transmission belt 19 surrounds all pulleys 11 and maintains appropriate tension. The output shaft of the motor 9 is directly or via a reducer connected to one of the pulleys 11 located at the top or bottom as the driving pulley. During operation, the motor 9 drives the driving pulley 11 to rotate, and through the friction or meshing of the transmission belt 19, synchronously drives all driven pulleys 11 to rotate at the same linear speed.

[0025] like Figure 4 As shown, in this embodiment, a plurality of supports 10 are provided on the frame 1, and each support 10 is rotatably connected to a rotating shaft, one end of which is fixedly connected to a pulley 11. The above technical solution solves the problems of support, positioning, and rotational flexibility of the pulleys 11. Specifically, to achieve precise installation and smooth rotation of each pulley 11, multiple supports 10 are fixed at corresponding positions on the frame 1. Each support 10 supports a rotating shaft via rolling bearings. One end of the rotating shaft is fixed to the corresponding pulley 11 via a key or flange connection, allowing it to rotate with the shaft; the other end of the rotating shaft is used to connect to the subsequent clutch structure. The supports 10 ensure the parallelism and coaxiality requirements of each rotating shaft, guaranteeing stable operation of the transmission belt 19, reducing power loss, and extending the service life of the transmission components.

[0026] like Figure 3 and Figure 4 As shown, in this embodiment, the driving component is a gear 17, one end of which is connected to a rotating rod 13. The rotating rod 13 is rotatably connected to the frame 1. The driven component is a rack 18 fixed to the bottom of the pallet frame 5 and meshing with the gear 17. The above technical solution solves the core problem of how to efficiently, accurately, and reliably convert rotational power into linear thrust. Specifically, the conversion mechanism employs a high-efficiency gear and rack pair. The driving component is a gear 17, which is fixed to a rotating rod 13 via a key connection. This rotating rod 13 is rotatably connected to the frame 1 via a bearing housing. The driven component is an elongated rack 18, which is securely mounted on the bottom edge of the pallet frame 5 via bolt or welding, corresponding to the mounting position of the gear 17 to ensure proper meshing. During operation, when the gear 17 is driven to rotate, it converts torque into a thrust or pull force on the pallet frame 5 through meshing with the rack 18, driving it to move linearly along the guide rail.

[0027] like Figure 4 and Figure 5 As shown, in this embodiment, the clutch structure includes: a first transmission component 12, one end of which is fixedly connected to the rotating shaft; a telescopic component, one end of which is fixedly connected to the rotating rod 13, and the other end of which is connected to a second transmission component 16. When the telescopic component pushes the second transmission component 16 to press against the first transmission component 12, the rotating shaft can be connected to the rotating rod 13 by the friction between the contact surfaces of the second transmission component 16 and the first transmission component 12. Preferably, the first transmission component 12 is a clutch plate, the second transmission component 16 is a pressure plate, the telescopic component is an electric push rod 15, the base of the electric push rod 15 is fixedly connected to the rotating rod 13 through a connecting plate 14, and the telescopic head of the electric push rod 15 is fixedly connected to the second transmission component 16. The above technical solution solves the problem of how to quickly and smoothly transfer power from a common transmission link to or from a specific working unit without stopping the machine. Specifically, the clutch structure adopts a friction clutch scheme to connect the rotating shaft surrounding the transmission mechanism and the rotating rod 13 of the drive gear 17. It mainly includes a clutch friction plate, i.e., the first transmission component 12, and a clutch pressure plate, i.e., the second transmission component 16, which is axially movable on the rotating rod 13 via a telescopic component. The second transmission component 16 is loosely fitted on the rotating rod 13, and its circumferential connection to the rotating rod 13 is via a spline or keyway, allowing it to slide axially along the rotating rod 13 but not to rotate relative to it [not shown in the figure]. During operation, when the telescopic component moves, it pushes the second transmission component 16 against the continuously rotating first transmission component 12. The frictional torque generated between their contact surfaces causes the rotating rod 13 to start rotating, thereby driving the gear 17 to rotate.

[0028] like Figure 1 , Figure 2 and Figure 4 As shown, in this embodiment, the bottom of the pallet rack 5 is rotatably connected to a pulley 6 that is adapted to the guide rail; The above technical solution solves the problems of excessive friction, difficulty in pushing and pulling, and severe wear under heavy loads by converting sliding friction into rolling friction. Specifically, to support the weight of the heavy pallet rack 5 and the pallet sheets and make its movement easy, multiple pulleys 6 are evenly distributed at the four corners or edges of the bottom of the pallet rack 5. These pulleys 6 are connected to the bottom surface of the pallet rack 5 through wheel frames and axles. The groove shape of the pulleys 6 matches the flange shape of the guide rail, ensuring that the pallet rack 5 will not derail. In use, the weight of the pallet rack 5 is borne by the pulleys 6, and under the action of the drive mechanism, it moves by rolling the pulleys 6 on the guide rail. Converting sliding friction into rolling friction makes movement extremely effortless, protects the guide rail and rack structure, and ensures smooth and stable operation.

[0029] like Figure 1 , Figure 2 and Figure 3 As shown, in this embodiment, the shelf also includes: at least two door frames 2 rotatably connected to one end of the frame 1; a plurality of first guide rails 3 disposed on the frame 1; and a plurality of second guide rails 4 disposed on the door frames 2, wherein the first guide rails 3 and the second guide rails 4 can engage to form a long guide rail for guiding the pallet rack 5 to slide out when the door frame 2 is opened. The above technical solution solves the support and guidance problem when the pallet rack 5 needs to be partially or completely removed from the frame 1 for operation. Specifically, the access surface of the rack is designed with an opening, and two door frames 2 are symmetrically installed at the opening via hinges or heavy-duty hinges. First guide rails 3 are fixed to both sides inside the frame 1, and correspondingly, second guide rails 4 are fixed to the inner side of each door frame 2. The models, heights, and interface shapes of the first guide rails 3 and the second guide rails 4 are matched. During operation, when materials need to be stored or retrieved, the door frame 2 is rotated outwards to be flush with the side of the frame 1 or at a certain angle (180 degrees in this embodiment). At this time, the end of the second guide rail 4 is precisely aligned with the end of the first guide rail 3, forming a continuous, seamless long guide rail. This ensures that the pallet rack 5 is supported and guided throughout its extension process, preventing it from tipping over or getting stuck, and ensuring operational safety.

[0030] like Figure 1 and Figure 2 As shown, in this embodiment, the frame 1 is a box-shaped structure with one open side, consisting of several columns and several intersecting horizontal and vertical beams. The first guide rails 3 are evenly distributed in the vertical direction of the columns, so that each layer of the first guide rails 3 forms a platform for supporting the pallet rack 5, so that the pallet rack 5 can be slidably set in the frame 1. The above technical solution solves the problem of constructing a rigid main structure capable of bearing huge static and dynamic loads and providing precise guidance for multi-layer sliding racks. Specifically, the main structure of frame 1 is constructed from high-strength steel such as square or rectangular tubes, welded or bolted together to form a robust, one-sided open three-dimensional box. This structure includes vertical columns, horizontal beams, and longitudinal beams connecting the front and rear, forming a stable grid-like load-bearing system. Multiple layers of first guide rails 3 are fixedly installed at equal intervals along the vertical direction on the columns on both sides. The upper surfaces of these first guide rails 3 collectively form the platform supporting and guiding each layer of pallet rack 5. The pallet rack 5 sits atop the first guide rails 3 on both sides via pulleys 6 at its bottom. The overall structure is stable and reliable, with excellent load-bearing capacity, clear space division, and flexible layer height design according to the size of the stored items, maximizing space utilization.

[0031] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.

[0032] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A novel pull-out shelving unit for sheet metal, comprising: A frame (1), a plurality of pallet racks (5) slidably disposed within the frame (1), and a guide rail disposed on the sliding path of the pallet racks (5) to guide their sliding; The characteristic feature is that the shelf further includes: A shared power source; A surrounding transmission mechanism is connected to the power source to synchronously convert the rotation of a single output shaft of the power source into rotation of multiple output points; Multiple conversion mechanisms, each of which includes a drive member rotatably connected to the frame (1) and a driven member fixed to the pallet frame (5) and adapted to the drive member. The driven member is used to convert the axial rotational motion of the drive member into its own linear motion, thereby driving the pallet frame (5) to slide synchronously. A clutch structure is provided between the output point and the driving element for selectively coupling or disconnecting any of the driving elements from the corresponding output point.

2. The novel pull-out shelving unit according to claim 1, characterized in that, The power source includes an electric motor (9).

3. The novel pull-out shelving unit according to claim 2, characterized in that, A motor mounting plate (8) is provided on the outside of the frame (1), and the motor mounting plate (8) is used to support and fix the motor (9).

4. The novel pull-out shelving unit according to claim 1, characterized in that, The surrounding transmission mechanism includes a closed-loop transmission belt (19) and multiple pulleys (11), each of which engages or frictionally engages with the transmission belt (19) and is tensioned thereon. The power source is connected to one of the pulleys (11) in a transmission connection.

5. The novel pull-out shelving unit according to claim 4, characterized in that, The frame (1) is provided with a plurality of brackets (10), each bracket (10) is rotatably connected to a rotating shaft, one end of the rotating shaft being fixedly connected to a pulley (11).

6. The novel pull-out shelving unit according to claim 5, characterized in that, The driving component is a gear (17), one end of which is connected to a rotating rod (13). The rotating rod (13) is rotatably connected to the frame (1). The driven component is a rack (18) fixed to the bottom of the pallet frame (5) and meshing with the gear (17).

7. The novel pull-out shelving unit according to claim 6, characterized in that, The clutch structure includes: The first transmission component (12) has one end fixedly connected to the rotating shaft; The telescopic component has one end fixedly connected to the rotating rod (13) and the other end connected to the second transmission component (16). When the telescopic component pushes the second transmission component (16) to press against the first transmission component (12), the friction between the contact surfaces of the second transmission component (16) and the first transmission component (12) can make the rotating shaft dock with the rotating rod (13).

8. The novel pull-out shelving unit according to claim 7, characterized in that, The first transmission component (12) is a clutch plate, the second transmission component (16) is a pressure plate, the telescopic component is an electric push rod (15), the base of the electric push rod (15) is fixedly connected to the rotating rod (13) through a connecting plate (14), and the telescopic head of the electric push rod (15) is fixedly connected to the second transmission component (16).

9. The novel pull-out shelving unit according to claim 1, characterized in that, The bottom of the pallet rack (5) is rotatably connected to a pulley (6) that is compatible with the guide rail.

10. The novel pull-out shelving unit according to any one of claims 1-9, characterized in that, The shelf also includes: At least two door frames (2) are rotatably connected to one end of the frame (1); Multiple first guide rails (3) are provided on the frame (1); Multiple second guide rails (4) are provided on the door frame (2), and the first guide rail (3) and the second guide rail (4) can be joined together to form a long guide rail for guiding the pallet rack (5) to slide out when the door frame (2) is opened.

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