Multi-layer bidirectional drawer type goods shelf with good load bearing effect

By using a multi-layer, two-way drawer-type rack with a push-pull trolley and rack meshing structure, the problem of time-consuming and laborious pulling of heavy items in existing racks is solved, enabling quick retrieval and safe storage of heavy items and improving warehouse operation efficiency.

CN122296624APending Publication Date: 2026-06-30HANDAN FENGFENG MINING DISTRICT FENGZHAN MECHANICAL & ELECTRICAL CO LTD
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Patent Information

Application Number
CN202610507329.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-05-28
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Existing drawer-type shelves are time-consuming and laborious to pull out when under load, making it difficult to efficiently retrieve and place heavy items, which affects the efficiency of warehousing operations.

Method used

The design incorporates a multi-layer, two-way drawer-type shelving unit with a push-pull trolley and rack and pinion mechanism. It utilizes a motor-driven pinwheel reducer and chain drive to enable convenient movement and safe storage of goods.

Benefits of technology

It improves the efficiency and security of cargo storage, enables quick retrieval and placement of heavy items, and enhances warehousing operation efficiency.

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Abstract

This invention discloses a multi-layer, two-way drawer-type shelving unit with good load-bearing capacity, comprising a top shelf, a middle shelf, a rack, uprights, and a push-pull trolley. The top shelf and middle shelf are arranged vertically, with uprights respectively located below the top shelf and middle shelf. The rack is horizontally positioned on the side of the uprights. The push-pull trolley is located below the top shelf and middle shelf, and is movable on the side of the uprights. The push-pull trolley includes a main frame, a motor, a pinwheel reducer, a traveling shaft, a bearing housing, a chain, and gears. The gears are meshed with the rack, and the two ends of the traveling shaft pass through the gears. The bearing housing is sleeved on the traveling shaft. The main frame is located on the bearing housing, and the motor and pinwheel reducer are located on the main frame. The chain is sleeved on the pinwheel reducer and the traveling shaft. Thus, the movement of the shelving unit is controlled by the push-pull trolley, facilitating the retrieval and placement of goods by workers, greatly improving work efficiency. It can also be used in conjunction with forklifts and intelligent loading and unloading vehicles.
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Description

Technical Field

[0001] This invention relates to the technical field of shelving, and more particularly to a multi-layer, two-way drawer-type shelving with good load-bearing capacity. Background Technology

[0002] With societal development, shelves have become ubiquitous in daily life. Whether in supermarkets or warehouses, shelves are essential for storing and displaying goods, facilitating organization, and are in high demand. In warehouse shelving, drawer-type shelves are designed to facilitate forklifts in placing heavy items. However, due to their weight, drawer-type heavy-duty shelves are generally very time-consuming and laborious to pull out and return to their original positions when loaded with heavy items. Summary of the Invention

[0003] The present invention aims to at least partially solve one of the technical problems in the related art.

[0004] Therefore, the purpose of this invention is to propose a multi-layer bidirectional drawer-type rack with good load-bearing capacity. The rack movement is controlled by a push-pull trolley, which makes the picking and placing of items both quick and safe, greatly improving the efficiency of warehousing operations. It can also be used in conjunction with forklifts and intelligent loading and unloading vehicles.

[0005] To achieve the above objectives, this invention proposes a multi-layer, two-way drawer-type shelving unit with good load-bearing capacity, comprising a top shelf, a middle shelf, a rack, uprights, and a push-pull trolley. The top shelf and middle shelf are arranged vertically. The uprights are respectively positioned below the top shelf and middle shelf and connected to the middle shelf. The rack is horizontally positioned on the side of the uprights and below the top shelf and middle shelf. The push-pull trolley is respectively positioned below the top shelf and middle shelf and meshes with the rack. The push-pull trolley is movable on the side of the uprights. The push-pull trolley includes a main frame, a motor, a pinwheel reducer, a traveling shaft, a bearing seat, a chain, and gears. The gears are meshed with the rack. The traveling shaft passes through the gears at both ends. The bearing seat is sleeved on the traveling shaft. The main frame is positioned on the bearing seat. The motor and pinwheel reducer are positioned on the main frame and connected. The chain is sleeved on the pinwheel reducer and the traveling shaft.

[0006] In addition, the fire-retardant coating production and processing equipment proposed above according to the present invention may also have the following additional technical features:

[0007] Specifically, a drive sprocket is sleeved at the connection between the pinwheel reducer and the chain, and the chain is sleeved on the drive sprocket.

[0008] Specifically, a driven sprocket is sleeved at the connection between the traveling shaft and the chain, and the chain is sleeved on the driven sprocket.

[0009] Specifically, the column is provided with a support roller on its side, and the main frame is provided with a groove structure to accommodate the support roller on its side.

[0010] Specifically, the traveling shaft and bearing assembly are located at the center of the main frame.

[0011] Specifically, beam brackets are provided at the connection points between the middle and top shelves and the columns.

[0012] Specifically, the middle layer frame includes middle layer side beams and middle layer cross beams, wherein the middle layer side beams are respectively disposed on both sides of the uprights, the two ends of the middle layer cross beams are connected to the uprights, and the middle layer cross beams are arranged parallel to each other.

[0013] Specifically, the top-level frame includes top-level end beams, top-level longitudinal beams, and top-level side beams. The top-level end beams are respectively located on both sides of the column, and both ends of the top-level end beams are connected to the column. The top-level end beams are arranged parallel to each other, and both ends of the top-level longitudinal beams are respectively connected between the top-level end beams.

[0014] Compared with existing technologies, the technical solution provided by this invention has the following beneficial effects: The multi-layer, two-way drawer-type shelving unit of this invention, with its excellent load-bearing capacity, not only expands storage space but also improves storage efficiency through its multi-layer and two-way structural design. The structural design of each shelf layer can withstand heavy loads, ensuring the safe storage of goods.

[0015] In the push-pull trolley, the motor drives the entire system, working in conjunction with a pinwheel reducer to enhance the stability of power transmission. The ingenious design of the traveling shaft and bearing housing ensures smooth movement of the trolley on a horizontal plane. A chain connects the pinwheel reducer and the traveling shaft, forming a closed transmission chain system, enabling the trolley to move in both directions. This innovative design not only improves the efficiency of the shelving but also ensures convenient retrieval and placement of goods, meeting diverse warehousing needs.

[0016] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, wherein:

[0018] Figure 1 This is a schematic diagram of the multi-layer bidirectional drawer-type shelving structure with good load-bearing capacity according to the present invention;

[0019] Figure 2 This is a side view of the multi-layer bidirectional drawer-type shelving unit with good load-bearing capacity according to the present invention.

[0020] Figure 3This is a top view of the top shelf of the multi-layer bi-directional drawer-type shelving unit with good load-bearing capacity according to the present invention.

[0021] Figure 4 This is a top view of the middle shelf structure of the multi-layer bi-directional drawer-type shelving with good load-bearing capacity according to the present invention.

[0022] Figure 5 This is a schematic diagram of the push-pull trolley structure of the multi-layer bidirectional drawer-type shelf with good load-bearing capacity of the present invention;

[0023] Figure 6 This is a top view of the multi-layer bidirectional drawer-type push-pull trolley with good load-bearing capacity, as shown in the present invention.

[0024] As shown in the figure: 1. Top layer frame; 2. Middle layer frame; 3. Rack; 4. Column; 5. Push-pull trolley; 6. Main frame; 7. Motor; 8. Pinwheel reducer; 9. Traveling shaft; 10. Bearing seat; 11. Chain; 12. Gear; 13. Drive sprocket; 14. Driven sprocket; 15. Beam bracket; 16. Middle layer side beam; 17. Middle layer cross beam; 18. Top layer end beam; 19. Top layer longitudinal beam; 20. Top layer side beam; 21. Support roller. Detailed Implementation

[0025] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the invention, and should not be construed as limiting the invention. Rather, embodiments of the invention include all variations, modifications, and equivalents falling within the spirit and scope of the appended claims.

[0026] The fire-retardant coating production and processing equipment of the present invention will be described below with reference to the accompanying drawings.

[0027] like Figure 1 As shown, the fire-retardant coating production and processing equipment of this embodiment of the invention may include a top layer frame 1, a middle layer frame 2, a rack 3, a column 4, and a push-pull trolley 5.

[0028] The top shelf 1 and the middle shelf 2 are arranged vertically, the columns 4 are respectively located below the top shelf 1 and the middle shelf 2 and connected to the middle shelf 2, and the racks 3 are horizontally located on the side of the columns 4 and respectively located below the top shelf 1 and the middle shelf 2.

[0029] The push-pull trolley 5 is respectively set below the top shelf 1 and the middle shelf 2, and is meshed with the gear 12. The push-pull trolley 5 is movably set on the side of the column 4. The push-pull trolley 5 includes a main frame 6, a motor 7, a pinwheel reducer 8, a traveling shaft 9, a bearing seat 10, a chain 11 and a gear 12.

[0030] Among them, gear 12 is meshed with rack 3, both ends of the traveling shaft 9 pass through gear 12, bearing seat 10 is sleeved on traveling shaft 9, main frame 6 is set on bearing seat 10, motor 7 and pinwheel reducer 8 are set on main frame 6, and motor 7 and pinwheel reducer 8 are connected, and chain 11 is sleeved on pinwheel reducer 8 and traveling shaft 9.

[0031] It should be noted that the main body of the push-pull trolley 5 is made of No. 12 channel steel. The channel steel is divided into two layers: the upper layer is the weighing layer and the lower layer is the support layer. After welding, a patterned steel plate is laid on the upper layer. A detachable movable steel plate is laid on the motor 7 and the pinwheel reducer 8 to facilitate the maintenance of the motor 7 in the future.

[0032] Specifically, motor 7 drives pinwheel reducer 8 to rotate. Pinwheel reducer 8 drives driven sprocket 14 to rotate through drive sprocket 13 and chain 11. Driven sprocket 14 drives travel shaft 9 to rotate. At the same time, gears 12 located at both ends of travel shaft 9 rotate synchronously. Gears 12 are meshed with rack 3. Gears 12 move on rack 3, pushing the trolley to move parallel on the shelf, so that the goods placed on the trolley are moved away from the shelf. The goods are moved to one side of the shelf, and the staff can take the goods off the trolley.

[0033] In one embodiment of the present invention, such as Figure 1 As shown, a drive sprocket 13 is sleeved at the connection between the pinwheel reducer 8 and the chain 11, and the chain 11 is sleeved on the drive sprocket 13. A driven sprocket 14 is sleeved at the connection between the traveling shaft 9 and the chain 11, and the chain 11 is sleeved on the driven sprocket 14. A support roller 21 is provided on the side of the column 4, and a groove structure for accommodating the support roller 21 is provided on the side of the main frame 6.

[0034] It should be noted that the pinwheel reducer 8 described in this embodiment drives the driven sprocket 14 to rotate through the driving sprocket 13 and the chain 11, and drives the traveling shaft 9 to rotate through the driven sprocket 14. The motor 7 used in the pinwheel reducer 8 has a power of 2.2KW. The support roller 21 is rotatably mounted on the column 4. The support roller 21 is located in the groove structure of the main frame 7 to maintain the flatness of the main frame 7 and to weigh the load.

[0035] In one embodiment of the present invention, such as Figure 1 As shown, the traveling shaft 9 and the bearing assembly are located at the center of the main frame 6.

[0036] In one embodiment of the present invention, such as Figure 1 As shown, beam brackets 15 are provided at the connection between the middle layer frame 2 and the top layer frame 1 and the column 4.

[0037] It should be noted that the beam bracket 15 described in this embodiment is fixed to the middle frame 2 and the top frame 1 by bolts at both ends.

[0038] In one embodiment of the present invention, such as Figure 4 As shown, the middle shelf 2 includes a middle shelf side beam 16 and a middle shelf cross beam 17.

[0039] Among them, the middle layer side beams 16 are respectively set on both sides of the column 4, and the two ends of the middle layer cross beams 17 are connected to the column 4. The middle layer cross beams 17 are set parallel to each other.

[0040] In one embodiment of the present invention, such as Figure 3 As shown, the top layer frame 1 includes a top layer end beam 18, a top layer longitudinal beam 19, and a top layer side beam 20.

[0041] Among them, the top end beams 18 are respectively set on both sides of the column 4, the two ends of the top end beams 18 are connected to the column 4, the top end beams 18 are set parallel to each other, and the two ends of the top longitudinal beams 19 are respectively connected between the top end beams 18.

[0042] In summary, the multi-layer, two-way drawer-type shelving unit of this invention, with its excellent load-bearing capacity, not only expands storage space but also improves storage efficiency through its multi-layer and two-way structural design. Each shelf layer is designed to withstand heavy loads, ensuring the safe storage of goods and facilitating the entry and exit of goods. This makes the retrieval and placement of items both quick and safe, greatly improving the efficiency of warehousing operations.

[0043] In the push-pull trolley, the motor drives the entire system, working in conjunction with a pinwheel reducer to enhance the stability of power transmission. The ingenious design of the traveling shaft and bearing housing ensures smooth movement of the trolley on a horizontal plane. A chain connects the pinwheel reducer and the traveling shaft, forming a closed transmission chain system, enabling the trolley to move in both directions. This innovative design not only improves the efficiency of the shelving but also ensures convenient retrieval and placement of goods, meeting diverse warehousing needs.

[0044] In the description of this specification, 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 indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0045] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0046] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A multi-layer, two-way drawer-type shelving unit with good load-bearing capacity, characterized in that, It includes a top shelf (1), a middle shelf (2), a rack (3), uprights (4), and a push-pull trolley (5), among which, The top shelf (1) and the middle shelf (2) are arranged vertically; The columns (4) are respectively located below the top shelf (1) and the middle shelf (2), and are connected to the middle shelf (2); The rack (3) is horizontally arranged on the side of the column (4) and is respectively arranged below the top shelf (1) and the middle shelf (2); The push-pull trolley (5) is respectively located below the top shelf (1) and the middle shelf (2), and is meshed with the gear (12). The push-pull trolley (5) is movably mounted on the side of the column (4). The push-pull trolley (5) includes a main frame (6), a motor (7), a pinwheel reducer (8), a traveling shaft (9), a bearing seat (10), a chain (11), and a gear (12). The gear (12) is meshed with the rack (3); The two ends of the walking shaft (9) pass through the gear (12); The bearing housing (10) is sleeved on the traveling shaft (9); The main frame (6) is mounted on the bearing seat (10); The motor (7) and the pinwheel reducer (8) are mounted on the main frame (6) and are connected to each other. The chain (11) is sleeved on the pinwheel reducer (8) and the travel shaft (9).

2. The multi-layer bi-directional drawer-type shelving with good load-bearing capacity according to claim 1, characterized in that, A drive sprocket (13) is sleeved at the connection between the pinwheel reducer (8) and the chain (11), and the chain (11) is sleeved on the drive sprocket (13).

3. The multi-layer bidirectional drawer-type shelving with good load-bearing capacity according to claim 1, characterized in that, A driven sprocket (14) is sleeved at the connection between the walking shaft (9) and the chain (11), and the chain (11) is sleeved on the driven sprocket (14).

4. The multi-layer bi-directional drawer-type shelving with good load-bearing capacity according to claim 1, characterized in that, The column (4) has a support roller (21) on its side, and the main frame (6) has a groove structure on its side to accommodate the support roller (21).

5. The multi-layer, two-way drawer-type shelving with good load-bearing capacity according to claim 1, characterized in that, The traveling shaft (9) and bearing assembly are located at the center of the main frame (6).

6. The multi-layer bi-directional drawer-type shelving with good load-bearing capacity according to claim 1, characterized in that, The middle layer frame (2) and the top layer frame (1) are provided with beam brackets (15) at the connection between the column (4).

7. The multi-layer bi-directional drawer-type shelving with good load-bearing capacity according to claim 1, characterized in that, The middle shelf (2) includes middle shelf side beams (16) and middle shelf cross beams (17), wherein, The middle-layer side beams (16) are respectively set on both sides of the column (4); The two ends of the middle layer beam (17) are connected to the column (4), and the middle layer beams (17) are arranged parallel to each other.