Combined goods shelf convenient for adjusting floor height
By using a U-shaped shelving and slot structure design, and leveraging the linkage of springs and pull rods, tool-free and rapid adjustment of shelf height is achieved, solving the problems of low adjustment efficiency and unstable connection of traditional shelving, and improving warehouse management efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG GUANGLONG GUANYU METAL PROD CO LTD
- Filing Date
- 2025-06-20
- Publication Date
- 2026-05-12
AI Technical Summary
Existing modular shelving requires tools to adjust the shelf spacing, which is time-consuming and affects connection stability, making it difficult to adapt to frequent warehouse adjustment needs.
The structure features a U-shaped shelf, slots, sliding grooves, springs, and pull rods. By pulling the L-shaped pull plate with one hand, the spring compression and the inclined surface contact allow for quick disengagement and insertion of the insert rod, enabling tool-free shelf height adjustment.
It enables a single person to quickly, accurately, and conveniently adjust the floor height, improving the efficiency of warehouse space adjustment and reducing labor costs.
Smart Images

Figure CN224219720U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of modular shelving technology, specifically a modular shelving unit that is easy to adjust in terms of shelf height. Background Technology
[0002] Modular shelving is a type of warehouse storage equipment based on a modular design concept. It uses standardized components such as uprights, beams, and shelves, which are freely combined and flexibly assembled using bolt fastening. The uprights are typically made of cold-rolled steel sheet, roll-formed with precisely arranged snap-fit holes. Hooks at both ends of the beams can be directly inserted into the upright holes for quick assembly, eliminating the need for welding or complex tools. Shelves are mostly made of cold-rolled steel sheet or wood panels, laid flat on the beams to support goods. The biggest advantage of this type of shelving lies in its high flexibility and scalability. The number of shelves, shelf height, length, and width can be adjusted according to the size, weight, access frequency, and warehouse space layout to meet diverse storage needs. Furthermore, the disassembled components are easy to transport and reuse, effectively reducing warehousing costs. Whether storing light-duty boxed goods or heavy-duty palletized goods, modular shelving achieves efficient space utilization and safe storage of goods through optimized component configuration. It is widely used in warehousing scenarios in e-commerce logistics, manufacturing, retail, and many other fields.
[0003] Most existing shelving systems use a bolted connection between the frame and the shelf panels. When adjusting the shelf spacing, all bolts must be unscrewed one by one using external tools such as wrenches and screwdrivers to disassemble the shelf panels for height adjustment. Then, the bolts must be reinstalled and secured. This repeated disassembly and reassembly of bolts is not only time-consuming but can also affect the stability of the connection due to issues such as stripped bolt threads and worn bolt holes. The inefficiency of traditional bolted connections is particularly pronounced in scenarios where the specifications of stored goods change frequently and the need for shelf spacing adjustments is frequent. This not only prolongs the operation cycle but also increases labor costs, making it difficult to adapt to the actual needs of modern warehousing for rapid and flexible adjustments. To a certain extent, this restricts the convenience of shelving use and the efficiency of warehouse management. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides a modular shelving unit that is easy to adjust in terms of shelf height. It has the advantages of tool-free and rapid adjustment, flexible and variable shelf spacing, and stable and reliable connection. It solves the problems of low shelf spacing adjustment efficiency, high labor costs, and difficulty in adapting to frequent adjustment needs in traditional shelving systems mentioned in the background technology.
[0005] To achieve the aforementioned objectives of tool-free rapid adjustment, flexible and variable layer spacing, and stable and reliable connection, this utility model provides the following technical solution: A modular shelving unit with adjustable layer height, comprising a base plate, with U-shaped shelves installed on both sides of the top of the base plate. Each of the two U-shaped shelves has evenly distributed slots extending through its sides. A placement plate is positioned between the two U-shaped shelves, with sliding grooves extending through its four sides. A spring is fixedly connected to one side of each sliding groove that is close to the other. A spring is inserted through a placement plate on the side away from the sliding groove and is slidably connected to an insert rod. The insert rod, on one side of the placement plate, engages with a slot. An abutting groove is formed on one side of the insert rod. An H-shaped groove is formed in the middle of the inner cavity of the placement plate. Pull rods are slidably connected to both sides of the inner cavity of the H-shaped groove and engage with the abutting groove. An angled abutting block is fixedly connected to both sides of the two pull rods and abuts against the abutting groove. A connecting plate is slidably connected to the middle of the inner cavity of the H-shaped groove, and both ends of the connecting plate are fixedly connected to the pull rods.
[0006] As a further improvement of this utility model: the two U-shaped shelves are fixedly connected to the relatively close side by evenly distributed guide positioning plates, and the guide positioning plates cooperate with the slots.
[0007] As a further improvement of this utility model: the inner cavity of the H-shaped groove is fixedly connected to a second spring for movement away from the pull rod, and the side of the second spring away from the H-shaped groove is fixedly connected to the pull rod.
[0008] As a further improvement of this utility model: the inner cavity of the placement plate is provided with a movable groove through one side of the middle of the H-shaped groove.
[0009] As a further improvement of this utility model: an L-shaped pull plate is fixedly connected to the bottom center of the connecting plate, and the L-shaped pull plate passes through the moving groove.
[0010] As a further improvement of this utility model, a groove is provided at the bottom of one side of the L-shaped pull plate that passes through the moving groove.
[0011] As a further improvement of this utility model: a baffle is fixedly connected to one side of each of the two U-shaped shelves, and the bottom of the baffle is fixedly connected to the base plate.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] In this invention, when the floor height needs to be adjusted, the worker can easily pull the L-shaped pull plate with one hand through the pull groove. Through the linkage of the connecting plate, pull rod and angled contact block, the spring compression and the angled contact allow the insertion rod to quickly disengage from the slot and release the jamming. Then the placement plate can be smoothly moved and disassembled along the guide positioning plate. When adjusting the height, the pull groove is kept under force to keep the insertion rod retracted to avoid interference. The placement plate is pushed in along the guide positioning plate. After it contacts the baffle and triggers the limit, the pull groove is released, and the spring quickly rebounds to drive the insertion rod to automatically engage with the new height slot. The entire process requires no tools, realizing efficient, accurate and convenient rapid floor height adjustment by a single person, greatly improving the efficiency of warehouse space adjustment. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of this utility model;
[0015] Figure 2 This is a schematic diagram of the baffle of this utility model;
[0016] Figure 3 This is a top sectional view of the placement plate of this utility model;
[0017] Figure 4 This is a cross-sectional view of the insertion rod of this utility model;
[0018] Figure 5 This is a schematic diagram of the L-shaped pull plate of this utility model;
[0019] Figure 6 This is a schematic diagram of the bottom of the placement plate of this utility model.
[0020] In the diagram: 1. Base plate; 2. U-shaped shelf; 3. Slot; 4. Guide positioning plate; 5. Placement plate; 6. Sliding groove; 7. Spring 1; 8. Insert rod; 9. Abutting inclined groove; 10. H-shaped groove; 11. Pull rod; 12. Angled abutting block; 13. Connecting plate; 14. Moving groove; 15. L-shaped pull plate; 16. Pull groove; 17. Spring 2; 18. Baffle. Detailed Implementation
[0021] 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.
[0022] Please see Figures 1-6In this embodiment of the utility model, a modular shelving unit with adjustable shelf height includes a base plate 1. U-shaped shelves 2 are installed on both sides of the top of the base plate 1. Slots 3 are evenly distributed and penetrate both sides of the two U-shaped shelves 2. A placement plate 5 is provided between the two U-shaped shelves 2. Sliding grooves 6 are provided on all four sides of the inner cavity of the placement plate 5. Springs 7 are fixedly connected to the inner cavities of the two sliding grooves 6 on the side closest to each other. Insert rods 8 are slidably connected to the side of the two springs 7 away from the sliding grooves 6, penetrating the placement plate 5. The side of the insert rod 8 penetrating the placement plate 5 engages with the slot 3, and a contact point is provided on one side of the insert rod 8. An H-shaped groove 10 is formed in the middle of the inner cavity of the placement plate 5, with pull rods 11 slidably connected to both sides of the inner cavity of the H-shaped groove 10. At this time, the angled abutment blocks 12 fixed at both ends of the pull rods 11 move with the pull rods 11, causing the inclined surfaces of the angled abutment blocks 12 to gradually abut against the abutment groove 9 on the side of the insertion rod 8. This causes the insertion rod 8 to slide, and the elastic force of the spring 7 contracts into the sliding groove 6 until the head of the insertion rod 8 completely disengages from the slot 3 on the side wall of the U-shaped shelf 2 and engages with the abutment groove 9. An angled abutment blocks 12 are fixedly connected to both sides of the two pull rods 11, and the angled abutment blocks 12 abut against the abutment groove 9. The H-shaped groove 10... A connecting plate 13 is slidably connected to the middle of the inner cavity of the H-shaped groove 10, and both ends of the connecting plate 13 are fixedly connected to the pull rod 11. The movement of the middle of the inner cavity of the H-shaped groove 10 away from the pull rod 11 is fixedly connected to a second spring 17. When the pull groove 16 is released, the compressed second spring 17 releases its potential energy, pushing the pull rod 11 to quickly return to its original position. The angled contact block 12 disengages from the contact groove 9, and the insertion rod 8 pops out instantly under the restoring force of the first spring 7. Its end is precisely inserted into the slot 3 of the corresponding height to form an automatic lock. The side of the second spring 17 away from the H-shaped groove 10 is fixedly connected to the pull rod 11. The inner cavity of the placement plate 5 is located in the middle of the H-shaped groove 10. A movable groove 14 is provided through one side. An L-shaped pull plate 15 is fixedly connected to the bottom center of the connecting plate 13. The L-shaped pull plate 15 passes through the movable groove 14. A pull groove 16 is provided at the bottom of the side of the L-shaped pull plate 15 that passes through the movable groove 14. First, use your left hand to hold the placement plate 5 firmly to support its weight. Then, insert your right hand into the pull groove 16 and apply a horizontal pulling force with your fingers to make the L-shaped pull plate 15 slide laterally in the movable groove 14. During this process, the L-shaped pull plate 15 moves towards the center synchronously through the pull rod 11 driven by the bottom connecting plate 13. During this period, the spring 17 undergoes elastic deformation due to compression and accumulates reset potential energy.
[0023] Two U-shaped shelves 2 are fixedly connected to evenly distributed guide positioning plates 4 on their relatively close sides, and the guide positioning plates 4 cooperate with slots 3. The side of the guide positioning plate 4 away from the U-shaped shelf 2 protrudes, allowing the placement plate 5 to be placed on the guide positioning plate 4. The guide positioning plate 4 can guide the placement plate 5 to slide, ensuring accurate positioning without deviation when adjusting the shelf height, and can also support the placement plate 5. A baffle 18 is fixedly connected to one side of the two U-shaped shelves 2, and the bottom of the baffle 18 is fixedly connected to the base plate 1. The baffle 18 is used to limit the placement plate 5, prevent it from moving excessively during adjustment, and provide an installation positioning reference.
[0024] The working principle of this utility model is as follows: When the floor height needs to be adjusted, the worker first uses their left hand to firmly support the placement plate 5 to support its weight, while their right hand is inserted into the pull groove 16. By applying horizontal pulling force with their fingers, the L-shaped pull plate 15 slides laterally within the moving groove 14. During this process, the L-shaped pull plate 15 moves synchronously towards the center via the pull rod 11 driven by the bottom connecting plate 13. During this period, the spring 17 undergoes elastic deformation due to compression, accumulating restoring potential energy. At this time, the angled contact blocks 12 fixed at both ends of the pull rod 11 move along with the pull rod 11. The pull rod 11 moves, causing the inclined surface of the angled contact block 12 to gradually contact the contact groove 9 on the side of the insertion rod 8, causing the insertion rod 8 to slide. At the same time, the elastic force of the spring 7 retracts into the sliding groove 6 until the head of the insertion rod 8 is completely disengaged from the slot 3 on the side wall of the U-shaped shelf 2, releasing the mechanical locking state. After the locking is released, the worker applies an outward horizontal force with his left hand supporting the placement plate 5, causing the placement plate 5 to move along the rectangular cross-section track of the guide positioning plate 4 until the placement plate 5 is completely disengaged from the guide positioning plate 4, completing the disassembly action.
[0025] During the height adjustment phase, the operator must maintain a continuous pulling force on the pull groove 16 to keep the insertion rod 8 in the retracted state, avoiding interference with the U-shaped shelf 2 during movement. When the placement plate 5 is aligned with the guide positioning plate 4 at the target height, the operator pushes the placement plate 5 along the guide surface of the guide positioning plate 4 with the left hand until the side of the placement plate 5 touches the baffle 18 to form a limit. At this time, the pull groove 16 is released, the compressed spring 17 releases its potential energy, and pushes the pull rod 11 to quickly reset. The angled contact block 12 disengages from the contact groove 9, and the insertion rod 8 pops out instantly under the restoring force of the spring 7. Its end is precisely inserted into the slot 3 of the corresponding height to form an automatic lock. The entire adjustment process does not require the use of screwdrivers or other tools, and the floor height adjustment can be quickly completed by a single person.
[0026] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.
[0027] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.
[0028] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. 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 modular shelving unit with adjustable shelf height, comprising a base plate (1), characterized in that: U-shaped shelves (2) are installed on both sides of the top of the base plate (1). Slots (3) are evenly distributed and penetrate both sides of the two U-shaped shelves (2). A placement plate (5) is provided between the two U-shaped shelves (2). Sliding grooves (6) are provided on all four sides of the inner cavity of the placement plate (5). A spring (7) is fixedly connected to one side of the inner cavity of the two sliding grooves (6) that are close to each other. A rod (8) is slidably connected to the side of the two springs (7) that is away from the sliding grooves (6) that penetrates the placement plate (5). The rod (8) penetrates the placement plate (5) on one side and is connected to... The slot (3) is matched with the insertion rod (8). A contact groove (9) is provided on one side of the insertion rod (8). An H-shaped groove (10) is provided in the middle of the inner cavity of the placement plate (5). Pull rods (11) are slidably connected to both sides of the inner cavity of the H-shaped groove (10) and are matched with the contact groove (9). An angled contact block (12) is fixedly connected to both sides of the two pull rods (11), and the angled contact block (12) abuts against the contact groove (9). A connecting plate (13) is slidably connected to the middle of the inner cavity of the H-shaped groove (10), and both ends of the connecting plate (13) are fixedly connected to the pull rod (11).
2. The modular shelving unit with adjustable shelf height according to claim 1, characterized in that: Two U-shaped shelves (2) are fixedly connected to a uniformly distributed guide positioning plate (4) on their relatively close sides, and the guide positioning plate (4) cooperates with the slot (3).
3. The modular shelving unit with adjustable shelf height according to claim 1, characterized in that: The inner cavity of the H-shaped groove (10) is fixedly connected to a second spring (17) for movement away from the pull rod (11), and the side of the second spring (17) away from the H-shaped groove (10) is fixedly connected to the pull rod (11).
4. The modular shelving unit with adjustable shelf height according to claim 1, characterized in that: The inner cavity of the placement plate (5) is located on one side of the middle of the H-shaped groove (10) and has a moving groove (14).
5. A modular shelving unit with adjustable shelf height according to claim 1, characterized in that: An L-shaped pull plate (15) is fixedly connected to the bottom center of the connecting plate (13), and the L-shaped pull plate (15) passes through the moving groove (14).
6. A modular shelving unit with adjustable shelf height according to claim 5, characterized in that: The L-shaped pull plate (15) has a pull groove (16) at the bottom of one side that passes through the moving groove (14).
7. A modular shelving unit with adjustable shelf height according to claim 1, characterized in that: One side of each of the two U-shaped shelves (2) is fixedly connected to a baffle (18), and the bottom of the baffle (18) is fixedly connected to the base plate (1).