Double-layer goods shelf trolley

Abstract

The utility model provides a double-layer goods shelf trolley which comprises two vertical plates, inner gears and a goods shelf dynamic adjusting mechanism, the inner side of each vertical plate is fixedly provided with the inner gear, the vertical plates are provided with the goods shelf dynamic adjusting mechanism, and the goods shelf dynamic adjusting mechanism is provided with the inner gears. A dynamic gear of the goods shelf dynamic adjusting mechanism is connected with the inner gear in a meshed mode, and the dynamic gear is installed on a rotating arm in a rotating mode. Through innovative combination of the inner gear and the dynamic adjusting mechanism, flexible staggered layout of the double-layer goods shelf is achieved, traditional alignment limitation is broken through, collision interference is avoided, and lifting, carrying and storage are convenient, fast and safe. The gland packaging design of the inner gear effectively isolates dust and water, prolongs the service life, simplifies maintenance, and ensures long-term stable operation of the system.

Description

Technical Field

[0001] The utility model belongs to the technical field of trolleys, and in particular relates to a double-layer shelf trolley. Background Art

[0002] A double-layer shelf trolley is usually designed for transporting and storing goods in warehouses, supermarkets, offices and other places. Its structural features mainly include double-layer shelves, push handles and mobile wheels.

[0003] While traditional double-deck racks are commonly equipped with lifting mechanisms to flexibly accommodate storage needs for goods of varying heights and sizes, their design limitations cannot be ignored. Specifically, due to the inherent characteristics of the double-deck structure, the lower rack is often constrained by the upper rack when performing lifting or cargo handling operations, leading to a series of operational difficulties.

[0004] During operation, the lifting and lowering of the lower shelves and the loading and unloading of goods can easily cause unexpected collisions with the upper shelves. This can not only damage the goods, but also cause unnecessary wear and tear on the shelf structure itself, affecting its overall service life. In addition, the presence of the upper shelves often becomes an "invisible obstacle" in the operating space below, making it difficult for workers to accurately place goods on the lower shelves. Such challenges include obstructed vision and limited operating space, which reduces work efficiency and increases the risk of operational errors.

[0005] Therefore, it is very necessary to invent a double-deck shelf trolley. Utility Model Content

[0006] In order to solve the above technical problems, the utility model provides a double-layer shelf trolley, including a vertical plate, an internal gear and a shelf dynamic adjustment mechanism. There are two vertical plates, and an internal gear is fixedly installed on the inner side of each vertical plate. The shelf dynamic adjustment mechanism is installed on the vertical plate, and the dynamic gear of the shelf dynamic adjustment mechanism is meshed and connected with the internal gear, and the dynamic gear is rotatably installed on the rotating arm.

[0007] Preferably, the shelf dynamic adjustment mechanism also includes a shelf platform and a driving component, and two of the shelf platform and the driving component are provided, and the shelf platform is fixed to the dynamic gear; a single driving component is fixedly installed on the outer side of each vertical plate, and the output end of the driving component is fixed to the corresponding rotating arm.

[0008] Preferably, dynamic gears are fixedly mounted on both ends of the shelf platform via rotating shafts, and a group of dynamic gears is fixedly mounted on each shelf platform. There are four dynamic gears in total, and two of them form a group.

[0009] Preferably, each of the internal gears is meshed with a group of dynamic gears, and a pressure cover is rotatably mounted on the internal gear, and the pressure cover is used to encapsulate the internal gear.

[0010] Preferably, the dynamic gear is located on the inner side of the pressure cover, and the dynamic gear and the rotating shaft fixed to the shelf platform are rotatably connected to the pressure cover.

[0011] The two shelf platforms are always flush with the ground, and the upper surfaces are always facing upwards.

[0012] Preferably, the two driving components are used to drive the two rotating arms to rotate in the same direction.

[0013] Preferably, the two vertical plates are fixedly mounted on the base plate in a mirror-symmetrical manner, and push hand frames are fixedly mounted on the two vertical plates; universal wheels are fixedly mounted at the lower angles of the base plate.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] This innovative design cleverly incorporates an internal gear and a dynamic shelf adjustment mechanism, enabling flexible adjustment of the shelf platform height. It also offers a groundbreaking staggered layout for the double-layer shelves, effectively breaking the traditional vertical alignment limitation of double-layer shelves. This design frees the two shelf platforms from being constrained to the same vertical line, completely preventing collision or interference between the lower shelf and the upper shelf during operation, significantly improving the convenience and safety of cargo handling and storage.

[0016] Furthermore, the ingenuity of the internal gear lies in its encapsulation within a carefully designed gland. This detail not only creates a solid barrier, effectively protecting it from external factors such as dust and moisture, but also ensures the cleanliness and dryness of the internal gear, significantly extending its service life. This encapsulation design also greatly simplifies subsequent maintenance and servicing, allowing staff to more easily and quickly perform daily inspections and maintenance, ensuring the long-term stable operation of the racking system. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0018] Figure 2 It is a structural diagram of the dynamic adjustment mechanism of the shelf of the utility model.

[0019] Figure 3 This is a schematic diagram of the disassembled structure of the utility model without the dynamic adjustment mechanism of the shelf installed.

[0020] In the picture:

[0021] Vertical plate 1, internal gear 2, shelf dynamic adjustment mechanism 3, rotating arm 31, dynamic gear 32, shelf platform 33, driving component 34, bottom plate 4, universal wheel 5, hand frame 6. DETAILED DESCRIPTION

[0022] In order to help those skilled in the art better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work should fall within the scope of protection of the present invention.

[0023] In the description of the embodiments, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. In the description of the utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. 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, an indirect connection through an intermediate medium, or it can be a communication between the internal parts of two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0024] As attached Figure 1 To the attached Figure 3 As shown:

[0025] The utility model provides a double-layer shelf trolley, including a vertical plate 1, an internal gear 2 and a shelf dynamic adjustment mechanism 3. The vertical plates 1 are provided with two, and the internal gear 2 is fixedly installed on the inner side of each vertical plate 1. The shelf dynamic adjustment mechanism 3 is installed on the vertical plate 1, and the dynamic gear 32 of the shelf dynamic adjustment mechanism 3 is meshed and connected with the internal gear 2, and the dynamic gear 32 is rotatably installed on the rotating arm 31.

[0026] Furthermore, the core components of the dynamic shelf adjustment mechanism 3 include two shelf platforms 33 and two drive components 34. These two shelf platforms 33 are used to carry goods, and each platform is tightly fixed to a set of dynamic gears 32, achieving synchronization between the platform's lifting and the gear's rotation. The drive components 34 are cleverly mounted on the outside of each vertical panel 1, with their output terminals directly connected to the corresponding pivot arms 31. The operation of the drive components 34 effortlessly rotates the pivot arms 31, thereby driving the lifting and lowering of the shelf platforms 33.

[0027] Furthermore, to ensure smooth lifting and lowering of the shelf platforms 33, dynamic gears 32 are mounted on both ends of each shelf platform 33 via rotating shafts, forming a symmetrical arrangement. The system contains four dynamic gears 32, divided into two groups, with two gears in each group working together to ensure stability and precision during the lifting process.

[0028] Furthermore, as a key component of the lifting system, the internal gear 2's operational stability and durability are crucial. To this end, a specially designed pressure cap 7 encapsulates the internal gear 2, effectively shielding it from external environmental damage such as dust and moisture. The dynamic gear 32 is located inside the pressure cap 7, which is rotationally connected to the shaft of the dynamic gear 32 and the shelf platform 33, protecting the dynamic gear 32 without hindering its normal operation.

[0029] Furthermore, the two shelf platforms 33 are always flush with the ground, and the upper surfaces are always facing upward.

[0030] Furthermore, the two drive components 34 are designed to synchronously rotate the two rotating arms 31 in the same direction. This design ensures consistency and coordination during the lifting and lowering of the double-layer shelf. Simultaneously, the two uprights 1 are fixed to the base plate 4 in a mirror-symmetrical manner, which not only enhances the stability of the entire trolley but also enhances its appearance. Furthermore, a push handle 6 is fixed to the uprights to facilitate the operator's pushing of the trolley. Universal wheels 5 are installed beneath the base plate 4, making the trolley more flexible and convenient to move.

[0031] Furthermore, the internal gear 2 is a circular gear structure, and the function of the internal gear 2 is to cooperate with the dynamic gear 32 so that the upper surface of the shelf platform 33 is always facing upward.

[0032] The operating principle is as follows: First, when the double-layer rack cart is stationary, the two rack platforms 33 are located between the uprights 1, with their upper surfaces facing upward and flush with the ground. At this point, the internal gear 2, a key component fixed to the inner side of the uprights 1, maintains a stable circular gear structure, providing a stable base for subsequent lifting operations.

[0033] Then, when the height of the shelf platform 33 needs to be adjusted, the operator activates the two drive components 34. These two drive components 34 are mounted on the outside of the two vertical panels 1, and their output ends are directly connected to the corresponding rotating arms 31. As the drive components 34 are activated, the rotating arms 31 begin to rotate, driving one shelf platform 33 upward and the other shelf platform 33 downward. Consequently, the two shelf platforms 33 are offset and no longer on the same vertical line.

[0034] Because dynamic gear 32 is rotatably mounted on arm 31 and meshes with internal gear 2, it rotates with arm 31. Crucially, dynamic gear 32 drives the corresponding shelf platform 33 to rotate, adjusting the angle of the shelf platform 33 and ensuring that its top surface always faces upward.

[0035] Furthermore, to protect the dynamic gear 32 from external environmental damage, such as dust and moisture, a specially designed pressure cap 7 encapsulates the internal gear 2 and the dynamic gear 32. The pressure cap 7 is rotationally connected to the shaft of the dynamic gear 32 and the shelf platform 33, ensuring proper operation of the gears while effectively isolating them from external environmental influences.

[0036] Finally, when the shelf platform 33 is adjusted to the desired height, the operator stops the drive unit 34. At this point, thanks to the precise fit between the internal gear 2 and the dynamic gear 32, as well as the protective effect of the pressure cover 7, the shelf platform will remain at its current height, with its upper surface always facing upward, making it easy to place and retrieve goods.

[0037] During the entire lifting process, the two drive components 34 are designed to synchronously drive the two rotating arms 31 to rotate in the same direction, ensuring consistency and coordination during the lifting of the double-layer shelf. Furthermore, the two uprights 1 are fixed to the base plate 4 in a mirror-symmetrical manner, which not only enhances the stability of the entire trolley but also enhances its appearance. The uprights are also fixed with a push handle 6 and universal wheels 5, facilitating the operator's pushing and the trolley's flexible movement, respectively.

[0038] Utilizing the technical solution described in the utility model, or those skilled in the art designing similar technical solutions inspired by the technical solution of the utility model to achieve the above-mentioned technical effects, all fall within the scope of protection of the utility model.

Claims

1. A double-layer shelf trolley, characterized in that: The invention comprises a vertical plate (1), an internal gear (2) and a shelf dynamic adjustment mechanism (3), wherein two vertical plates (1) are provided, an internal gear (2) is fixedly mounted on the inner side of each vertical plate (1), a shelf dynamic adjustment mechanism (3) is mounted on the vertical plate (1), and a dynamic gear (32) of the shelf dynamic adjustment mechanism (3) is meshed and connected with the internal gear (2), and the dynamic gear (32) is rotatably mounted on a rotating arm (31).

2. A double-layer shelf trolley according to claim 1, characterized in that: The shelf dynamic adjustment mechanism (3) further comprises a shelf platform (33) and a driving component (34), wherein two shelf platforms (33) and two driving components (34) are provided, and the shelf platform (33) is fixed to the dynamic gear (32); a single driving component (34) is fixedly mounted on the outer side of each vertical plate (1), and the output end of the driving component (34) is fixed to the corresponding rotating arm (31).

3. A double-layer shelf trolley according to claim 2, characterized in that: Dynamic gears (32) are fixedly mounted on both ends of the shelf platform (33) via rotating shafts. A group of dynamic gears (32) is fixedly mounted on each shelf platform (33). There are four dynamic gears (32) in total, and two of them form a group.

4. A double-layer shelf trolley according to claim 3, characterized in that: Each of the internal gears (2) is meshed with a group of dynamic gears (32), and a pressure cover (7) is rotatably mounted on the internal gear (2), and the pressure cover (7) is used to encapsulate the internal gear (2).

5. A double-layer shelf trolley according to claim 4, characterized in that: The dynamic gear (32) is located on the inner side of the pressure cover (7), and the rotating shaft to which the dynamic gear (32) and the shelf platform (33) are fixed is rotatably connected to the pressure cover (7).

6. A double-layer shelf trolley according to claim 5, characterized in that: The two shelf platforms (33) are always flush with the ground, and the upper surfaces are always facing upwards.

7. The double-layer shelf trolley according to claim 2, characterized in that: The two driving components (34) are used to drive the two rotating arms (31) to rotate in the same direction.

8. The double-layer shelf trolley according to claim 1, characterized in that: The two vertical plates (1) are fixedly mounted on the bottom plate (4) in a mirror-symmetrical manner, and a pushing hand frame (6) is fixedly mounted on the two vertical plates (1); universal wheels (5) are fixedly mounted at the lower angles of the bottom plate (4).

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