Novel stacking frame

Abstract

The utility model provides a novel stacking frame, which comprises a main body support, a plurality of stacking plates, a plurality of stacking plates and a plurality of stacking plates, and is characterized in that the main body support is provided with an insertion space for fork arms of transportation equipment to extend; the first stand column structure is located at the top of the main body support, and the first end of the first stand column structure is detachably connected with the main body support; the second stand column structure is located on the top of the first stand column structure, and the second stand column structure is detachably connected with the second end of the first stand column structure. The problem that a novel stacking frame in the prior art is poor in universality is solved.

Description

Technical Field

[0001] This utility model relates to the field of stacking device design technology, and more specifically, to a novel stacking rack. Background Technology

[0002] In the automotive spare parts warehousing sector, pallet racks are commonly used equipment for storing and handling goods. Currently, most pallet racks on the market are designed for forklifts, with a low bottom fork entry position (usually less than 120mm from the ground). This makes it difficult for the forks of manual hydraulic pallet jacks (pallet jacks) to easily insert, causing difficulties for pallet jacks when handling such pallet racks. This limits the application of pallet jacks in pallet rack handling, increases equipment reliance and costs in warehousing operations.

[0003] Furthermore, the frame height of existing stacking racks is usually a fixed structure, which cannot be flexibly adjusted according to the different heights of automotive spare parts (such as the storage height difference between large components and small parts), resulting in poor versatility. When spare parts of different heights need to be stored, multiple sizes of stacking racks are required, which not only occupies storage space but also increases management costs.

[0004] To address the aforementioned problems in the existing technology, no effective technical solution has yet been proposed. Utility Model Content

[0005] The main objective of this invention is to provide a novel stacking rack to solve the problem of poor versatility of novel stacking racks in the prior art.

[0006] To achieve the above objectives, according to one aspect of the present invention, a novel stacking rack is provided, comprising: a main support frame having an insertion space for the forks of a transport device to extend into; a first column structure located at the top of the main support frame, with a first end of the first column structure detachably connected to the main support frame; and a second column structure located at the top of the first column structure, with a second end of the second column structure detachably connected to the second end of the first column structure.

[0007] Furthermore, the second column structure is magnetically connected to the second end of the first column structure.

[0008] Furthermore, the first end of the first column structure is bolted to the main support frame.

[0009] Furthermore, the main support frame is provided with multiple legs spaced circumferentially. The first end of each leg is connected to the main support frame, and the second end of each leg extends vertically upward. The second end of each leg is provided with a first mounting hole. The side wall of the first mounting hole has bolt holes. The first column structure includes multiple first column segments, which are provided one-to-one with the multiple legs. When the first column structure is connected to the main support frame, the first column segment is located in the corresponding first mounting hole, and the connecting bolts used to fix the first column segment and the main support frame are located in the bolt holes.

[0010] Furthermore, the second column structure includes multiple second column segments, which are arranged one-to-one with multiple first column segments. The bottom of each second column segment is provided with a magnetic connecting block, and the top of each first column segment has a second mounting hole. When the second column structure is connected to the first column structure, the end of the second column segment with the magnetic connecting block is located in the second mounting hole.

[0011] Furthermore, the first column structure is provided with multiple third column segments spaced apart along its circumference, and the second column structure is provided with multiple fourth column segments spaced apart along its circumference. The multiple third column segments and multiple fourth column segments are arranged in a one-to-one correspondence. The top of the third column segment has a mounting cavity. When the first column structure is connected to the second column structure, the fourth column segment is located in the mounting cavity of the corresponding third column segment. The side wall of the mounting cavity is provided with a guide rail groove, and the fourth column segment is provided with a slider assembly. The slider assembly is adapted to the guide rail groove so that the second column structure and the first column structure can be relatively movable along the first direction.

[0012] Furthermore, the slider assembly includes: a slider connected to the side wall at the bottom end of the fourth column section; and a ball bearing connected to the slider; wherein, when the second column structure is connected to the first column structure, the slider is located in the guide groove, and the ball bearing contacts the bottom of the guide groove.

[0013] Furthermore, the slider has a hollow cavity, within which a motion track for the spring pin is formed. The slider has openings on both sides for the extension and retraction of the spring pin. The guide rail groove is provided with multiple locking grooves at equal intervals along the longitudinal direction. The spring pin has a locking position where the pin is inserted into the locking groove to lock the slider relative to the guide rail groove, and a release position where the pin retracts inward to disengage from the locking groove.

[0014] Furthermore, at least one of the first column structure and the second column structure is provided with a shelf, which is parallel to the horizontal plane.

[0015] Furthermore, the main support structure includes two parallel transverse support beams and longitudinal support beams connected to both ends of the transverse support beams to form a rectangular frame structure. The height of the transverse support beams is L, where 200mm ≥ L ≥ 160mm.

[0016] By applying the technical solution of this utility model, and by setting up a first column structure and a second column structure, the new stacking rack can be adapted to the height of automotive spare parts, thus improving the versatility of the new stacking rack. This application solves the problem of poor versatility of existing new stacking racks. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0018] Figure 1 A structural schematic diagram of an embodiment of the novel stacking rack according to the present invention is shown;

[0019] Figure 2 A structural schematic diagram of an embodiment of the main support according to the present invention is shown;

[0020] Figure 3 A schematic diagram of an embodiment of the first column structure according to the present invention is shown;

[0021] Figure 4 A schematic diagram of an embodiment of the second column structure according to the present invention is shown.

[0022] The above figures include the following reference numerals:

[0023] 1. Main support frame;

[0024] 2. First column structure;

[0025] 3. Second column structure;

[0026] 4. Support legs;

[0027] 5. First column section;

[0028] 6. Second column section;

[0029] 7. Horizontal support beam. Detailed Implementation

[0030] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0031] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0032] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that the embodiments of this application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0033] Exemplary embodiments according to this application will now be described in more detail with reference to the accompanying drawings. However, these exemplary embodiments may be implemented in many different forms and should not be construed as being limited to the embodiments set forth herein. It should be understood that these embodiments are provided so that the disclosure of this application is thorough and complete, and that the concept of these exemplary embodiments is fully conveyed to those skilled in the art. In the drawings, for clarity, the thickness of layers and regions may be exaggerated, and the same reference numerals are used to denote the same devices, and therefore their description will be omitted.

[0034] Combination Figures 1 to 3 As shown, according to a specific embodiment of this application, a novel stacking rack is provided, comprising: a main support 1 having an insertion space for the forks of a transport device to extend into; a first column structure 2 located at the top of the main support 1, the first end of the first column structure 2 being detachably connected to the main support 1; and a second column structure 3 located at the top of the first column structure 2, the second column structure 3 being detachably connected to the second end of the first column structure 2.

[0035] By applying the technical solution of this utility model, and by setting the first column structure 2 and the second column structure 3, the new stacking rack can be adapted to the height of automotive spare parts, thus improving the versatility of the new stacking rack. This application solves the problem of poor versatility of existing new stacking racks.

[0036] By applying the technical solution of this utility model, the height of the stacking rack can be flexibly adjusted by introducing a detachable first column structure 2 and a second column structure 3.

[0037] Stacking racks can be quickly adjusted to accommodate different heights of stored items without replacing the entire rack, reducing the types of storage equipment, simplifying warehouse management, and improving space utilization and operational efficiency.

[0038] The design of the main support frame 1 ensures that both forklifts and manual hydraulic pallet jacks can perform handling operations smoothly. The increased insertion space allows the pallet jack's forks to extend, reducing reliance on forklifts, increasing handling flexibility, and lowering handling costs.

[0039] The detachable design of the column structure simplifies the maintenance and expansion of the stacking rack. When a column is damaged or needs to be increased in height, individual column sections can be replaced or added without affecting the overall structural stability.

[0040] Furthermore, by reducing reliance on specific handling equipment and simplifying the adjustment process of stacking racks, the overall cost of warehousing operations is reduced, while avoiding space waste caused by fixed column heights, thus further improving economic efficiency.

[0041] The main support frame 1 and the column structure are integrated with load-bearing capacity monitoring sensors, which can monitor the load of the stacking rack in real time and automatically issue an alarm when overload is detected to prevent safety accidents caused by overload.

[0042] The contact surfaces of the main support frame 1 and the column structure are made of anti-slip material, such as rubber pads, to increase connection stability; anti-collision material or anti-collision strips are added to the outer edge of the stacking rack to protect the stacking rack from damage during handling, and also to protect the handling equipment from impact.

[0043] Furthermore, the second column structure 3 is magnetically connected to the second end of the first column structure 2.

[0044] Magnetic connections offer a faster way to assemble and disassemble than traditional bolts or welding, significantly improving the deployment and adjustment speed of stacking racks and enhancing work efficiency.

[0045] Since magnetic connections require no additional tools, movers can easily connect and disconnect the columns by hand, reducing operational difficulty and improving the convenience of daily operations.

[0046] Magnetic connections are non-permanent and non-destructive, meaning that the columns can maintain good connection performance and structural integrity even after frequent disassembly and assembly, extending the service life of the stacking rack.

[0047] Magnetic connections provide a stable bond through strong magnetic force, effectively preventing items from falling during handling due to unstable connections and ensuring the safety of warehousing operations. Compared to rigid metal connections, magnetic connections generate less noise during assembly, contributing to a quieter working environment, especially suitable for nighttime operations or noise-sensitive areas.

[0048] In one alternative embodiment, while magnetic attraction provides initial connection stability, additional locking may be required under high-intensity handling conditions. A built-in locking mechanism, such as a spring clip, can be designed at the column connection point. Once the magnetic connection is complete, the spring clip automatically pops out and locks, further reinforcing the connection between the columns.

[0049] The stacking rack integrates a magnetic connection status monitoring sensor, which can detect the stability of the column connection in real time and transmit the data wirelessly to the warehouse management system or a handheld device used by staff to provide early warning of potential connection problems and prevent losses caused by items collapsing. Furthermore, the first end of the first column structure 2 is bolted to the main support 1.

[0050] Furthermore, the main support 1 is provided with a plurality of legs 4 at circumferential intervals. The first end of the legs 4 is connected to the main support 1, and the second end of the legs 4 extends upward in the vertical direction. The second end of the legs 4 is provided with a first mounting hole. The side wall of the first mounting hole has bolt holes. The first column structure 2 includes a plurality of first column segments 5. The plurality of first column segments 5 are provided in a one-to-one correspondence with the plurality of legs 4. When the first column structure 2 is connected to the main support 1, the first column segment 5 is located in the corresponding first mounting hole, and the connecting bolts used to fix the first column segment 5 and the main support 1 are located in the bolt holes.

[0051] The outrigger design ensures the stability of the stacking rack, especially under heavy loads. The first upright section 5 is bolted into the first mounting hole of the outrigger, forming a robust connection that significantly enhances the structural stability and load-bearing capacity of the stacking rack.

[0052] The precise correspondence between each first upright segment 5 and the first mounting hole on the support leg 4 makes the height adjustment of the stacking rack more accurate and stable. The position and number of bolt holes can be adjusted according to actual needs, allowing the upright segments to be fixed at different heights to meet the storage requirements of different goods. This structural design supports a modular assembly process, meaning that the first upright segment 5 can be produced and transported independently and quickly assembled with the main support frame 1 on site. This not only reduces production and transportation costs but also improves the flexibility and efficiency of on-site layout.

[0053] The outrigger design can be adjusted according to the ground conditions of the storage environment. For example, adjustable outriggers can be added on uneven ground to ensure that the stacking rack can stand stably under any conditions.

[0054] Optionally, a hydraulic or pneumatic piston can be integrated at the connection between the outrigger 4 and the first column section 5, allowing the first column section 5 to be finely adjusted within the first mounting hole to compensate for uneven ground or slight differences in cargo height, thereby improving the adaptability and efficiency of the stacking rack.

[0055] Furthermore, the second column structure 3 includes multiple second column segments 6, which are arranged one-to-one with multiple first column segments 5. The bottom of the second column segment 6 is provided with a magnetic connecting block, and the top of the first column segment 5 has a second mounting hole. When the second column structure 3 is connected to the first column structure 2, the end of the second column segment 6 with the magnetic connecting block is located in the second mounting hole.

[0056] Furthermore, the first column structure 2 is provided with multiple third column segments spaced apart along its circumference, and the second column structure 3 is provided with multiple fourth column segments spaced apart along its circumference. The multiple third column segments and multiple fourth column segments are arranged in a one-to-one correspondence. The top of the third column segment has a mounting cavity. When the first column structure 2 is connected to the second column structure 3, the fourth column segment is located in the mounting cavity of the corresponding third column segment. The side wall of the mounting cavity is provided with a guide rail groove, and the fourth column segment is provided with a slider assembly. The slider assembly is adapted to the guide rail groove so that the second column structure 3 and the first column structure 2 can be relatively movable along the first direction.

[0057] The sliding connection between the third and fourth column sections allows for fine-tuning of the stacking rack's height, rather than just coarse adjustments. This provides greater adaptability for storing goods of different sizes and improves space utilization efficiency. The adaptive design of the slider assembly and guide rail grooves makes the relative movement between the second column structure 3 and the first column structure 2 smoother, allowing operators to adjust the height more easily and reducing adjustment difficulty and time costs.

[0058] The matching design of the mounting cavity and the fourth column section, along with the tight fit between the guide rail groove and the slider assembly, provides structural stability and rigidity. Even after height adjustment, the stacking rack maintains good stability and load-bearing capacity. This sliding connection design simplifies the assembly and disassembly process of the column structure, allowing operators to easily complete height adjustments without additional tools, thus improving operational efficiency. The design of the slider assembly and guide rail groove reduces swaying and instability during adjustment, lowering the risk of goods falling due to structural instability and enhancing the safety of the stacking rack during use.

[0059] An auxiliary lifting mechanism, such as a small electric or pneumatic lift, is provided at the connection between the first column structure 2 and the second column structure 3 to assist in adjusting the height, reduce the physical burden on operators, and improve operating efficiency.

[0060] Safety limiters are installed at both ends of the guide rail to prevent excessive movement of the fourth column section, which could cause structural damage or instability and ensure the safety of the stacking rack when adjusting its height.

[0061] Furthermore, the slider assembly includes: a slider connected to the side wall at the bottom end of the fourth column section; and a ball bearing connected to the slider; wherein, when the second column structure 3 is connected to the first column structure 2, the slider is located in the guide groove, and the ball bearing contacts the bottom of the guide groove.

[0062] Furthermore, the slider has a hollow cavity, within which a motion track for the spring pin is formed. The slider has openings on both sides for the extension and retraction of the spring pin. The guide rail groove is provided with multiple locking grooves at equal intervals along the longitudinal direction. The spring pin has a locking position where the pin is inserted into the locking groove to lock the slider relative to the guide rail groove, and a release position where the pin retracts inward to disengage from the locking groove.

[0063] The slider is designed as a hollow cavity with an internal track for the spring pin. This track guides the movement of the spring pin, allowing it to slide smoothly within the track and extend or retract into the openings on both sides of the slider. This design ensures that the spring pin precisely engages with the locking groove on the guide rail as the slider moves along the guide rail.

[0064] The guide rail groove is provided with multiple locking grooves at equal intervals along its longitudinal direction. The function of these grooves is to provide a position for the spring pin to engage when the slider is adjusted to the specified height. When the fourth column section reaches the required height, the pin of the spring pin naturally extends under the action of the spring and enters the nearest locking groove, thereby locking the slider relative to the guide rail groove and preventing the column section from changing height due to vibration or external force during transportation.

[0065] When the slider moves to the target height, the spring pin automatically extends and engages in the locking groove of the guide rail, forming a secure lock and ensuring that the height of the stacking rack remains constant during handling. To adjust the height of the upright section, the operator can trigger the release device on the slider (such as a button or lever) to cause the pin to retract inward against the spring resistance, disengaging from the current locking groove. At this point, the slider can move freely, allowing for height readjustment.

[0066] The advantage of this design lies in its combination of simple physical principles (springs and friction) with a clever mechanical structure, achieving both precise height adjustment and ease of operation. Furthermore, because the spring pin locking mechanism does not require an external power source, it ensures the stability of the stacking rack structure in the event of a power outage or equipment failure, thus improving system reliability.

[0067] In an optional embodiment, a locking mechanism combining magnetic attraction and spring pins is used between the first column structure 2 and the second column structure 3. Magnetic attraction ensures quick connection, while the spring pins, under pressure, engage with corresponding locking grooves to provide additional safety locking, ensuring that the structures will not accidentally separate during transportation.

[0068] Furthermore, at least one of the first column structure 2 and the second column structure 3 is provided with a shelf, which is parallel to the horizontal plane.

[0069] The shelves are designed as height-adjustable modules. Depending on storage needs, the shelves can be moved between different heights via quick-connect devices (such as clips) with the first upright section 5 and the second upright section 6. This not only improves versatility but also allows users to flexibly adjust storage space according to spare parts sizes, further optimizing space utilization.

[0070] Optionally, the main support frame 1 and the shelves can be made of environmentally friendly materials, such as recycled steel and biodegradable wood, to reduce the impact on the environment and conform to the environmental protection trend of modern warehouse management.

[0071] Furthermore, the main support 1 includes two parallel transverse support beams 7 and longitudinal support beams connected to both ends of the transverse support beams 7 to form a rectangular frame structure. The height of the transverse support beams 7 is L, wherein 200mm ≥ L ≥ 160mm.

[0072] In an optional embodiment, the stacker rack includes a bottom support (main support 1), uprights (first upright structure 2, second upright structure 3), and shelves. The bottom support consists of two parallel transverse support beams and longitudinal support beams connected to both ends of the transverse support beams, forming a rectangular frame structure. The height of the transverse support beams is 160-200mm (preferably 180mm), which is greater than the height of the pallet jack's fork arm (usually 150mm), ensuring that the pallet jack's fork arm can be smoothly inserted under the bottom support to facilitate the pallet jack's handling of the stacker rack. Simultaneously, the transverse support beams have grooves that match the forklift forks, facilitating forklift fork insertion and meeting forklift handling requirements. The bottom support has legs fixed to the uprights at its four corners, each leg having two through holes for bolting to the first-layer uprights. When the stacker is empty, the upper bolts can be opened to fold the uprights, saving stacking space. The uprights above the second layer are composed of multiple upright segments connected vertically by a magnetic connection structure. The bottom of each upright section is equipped with a magnetic connecting block, which is smaller than the hollow part at the top. The magnetic connecting blocks of adjacent upright sections are fixed together by magnetic attraction. Each upright section is 500mm high (different specifications can be set according to actual needs). Users can choose to add one or more upright sections to the bottom upright section according to the height of the spare parts to adjust the overall height of the stacking rack.

[0073] To protect spare parts and to allow for temperature and humidity regulation, the shelves are made of wood and placed on crossbeams to support the automotive spare parts.

[0074] Handling operations: When using a forklift, insert the forklift forks into the grooves of the bottom bracket and lift the forklift to move the stacker; when using a pallet jack, insert the pallet jack forks from the side adjacent to the bottom bracket (because the bottom bracket is 150-200mm high, the pallet jack forks can be inserted smoothly), and lift the stacker through the hydraulic system of the pallet jack for handling.

[0075] Height adjustment operation: When the frame height needs to be increased, the additional column section is attached to the top of the existing column section using the magnetic connector; when the frame height needs to be decreased, the top column section is simply removed. The entire adjustment process requires no tools and is achieved solely through the attachment and removal of the magnetic connector, making the operation simple and quick.

[0076] Through the above technical solutions, the height design of the bottom support solves the problem of transporting the pallet jack, and the magnetic adjustable column structure enables flexible adjustment of the frame height, thereby producing the beneficial effects of improved compatibility, enhanced versatility, and high connection stability.

[0077] In one optional embodiment, the transverse support beam is 180mm high, the longitudinal support beam is 1200mm long and 1000mm wide, and is made of Q235 steel. Each column consists of two 500mm high column segments connected by a crossbeam. Each column segment has a magnetic connecting block at its bottom, located at the top and bottom of the segment respectively. The magnetic connecting block is a rectangular block structure with embedded permanent magnets and a rust-proof coating. The shelf is a wooden pallet, measuring 1200mm × 1000mm, placed on the crossbeam. When in use, the pallet jack fork arm (150mm high) can be smoothly inserted under the bottom bracket to realize pallet jack movement; when it is necessary to store automotive spare parts with a height of 1000mm, after the first layer of columns is fixed, a magnetic column is added, and the total height of the columns is 1000mm (two 500mm column sections); when it is necessary to store spare parts with a height of 1500mm, another 500mm high column section is added, and the total height of the columns becomes 1500mm.

[0078] As can be seen from the above description, the embodiments of this utility model achieve the following technical effects: the stacking rack can be moved by forklifts and also used by manual hydraulic pallet jacks. The height of the stacking rack frame is flexibly adjustable, suitable for storing automotive spare parts of different heights, reducing the requirements for stacking rack specifications and saving storage space and management costs. Magnetic connections provide the ability to quickly assemble and disassemble, while also ensuring the stability of the connection parts, avoiding the loosening problems that may be encountered with traditional connection methods.

[0079] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0080] In addition to the above, it should be noted that the terms "one embodiment," "another embodiment," and "embodiment" used in this specification refer to specific features, structures, or characteristics described in connection with that embodiment, which are included in at least one embodiment described in the general description of this application. The appearance of the same expression in multiple places in the specification does not necessarily refer to the same embodiment. Furthermore, when a specific feature, structure, or characteristic is described in connection with any embodiment, the intention is to suggest that implementing such a feature, structure, or characteristic in conjunction with other embodiments also falls within the scope of this utility model.

[0081] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0082] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any 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 stacking rack, characterized in that, include: The main support (1) has an insertion space for the forks of the transport equipment to extend into; The first column structure (2) is located on top of the main support (1), and the first end of the first column structure (2) is detachably connected to the main support (1). The second column structure (3) is located on top of the first column structure (2) and is detachably connected to the second end of the first column structure (2).

2. The novel stacking rack according to claim 1, characterized in that, The second column structure (3) is magnetically connected to the second end of the first column structure (2).

3. The novel stacking rack according to claim 1, characterized in that, The first end of the first column structure (2) is bolted to the main support (1).

4. The novel stacking rack according to claim 3, characterized in that, The main support (1) is provided with a plurality of legs (4) spaced around its perimeter. The first end of each leg (4) is connected to the main support (1), and the second end of each leg (4) extends upward in the vertical direction. The second end of each leg (4) is provided with a first mounting hole. The side wall of the first mounting hole has bolt holes. The first column structure (2) includes a plurality of first column segments (5). The plurality of first column segments (5) are provided in a one-to-one correspondence with the plurality of legs (4). When the first column structure (2) is connected to the main support (1), the first column segment (5) is located in the corresponding first mounting hole. The connecting bolts for fixing the first column segment (5) and the main support (1) are located in the bolt holes.

5. The novel stacking rack according to claim 4, characterized in that, The second column structure (3) includes multiple second column segments (6), which are arranged one-to-one with multiple first column segments (5). The bottom of the second column segment (6) is provided with a magnetic connecting block, and the top of the first column segment (5) has a second mounting hole. When the second column structure (3) is connected to the first column structure (2), the end of the second column segment (6) with the magnetic connecting block is located in the second mounting hole.

6. The novel stacking rack according to claim 1, characterized in that, The first column structure (2) is provided with a plurality of third column segments at intervals along its circumference, and the second column structure (3) is provided with a plurality of fourth column segments at intervals along its circumference. The plurality of third column segments and the plurality of fourth column segments are provided in a one-to-one correspondence. The top of the third column segment has a mounting cavity. When the first column structure (2) is connected to the second column structure (3), the fourth column segment is located in the mounting cavity of the corresponding third column segment. The side wall of the mounting cavity is provided with a guide rail groove, and the fourth column segment is provided with a slider assembly. The slider assembly is adapted to the guide rail groove so that the second column structure (3) and the first column structure (2) are relatively movable in a first direction.

7. The novel stacking rack according to claim 6, characterized in that, The slider assembly includes: A slider, which is connected to the side wall at the bottom end of the fourth column segment; A ball bearing, which is connected to the slider; When the second column structure (3) is connected to the first column structure (2), the slider is located in the guide rail groove, and the ball bearing is in contact with the bottom of the guide rail groove.

8. The novel stacking rack according to claim 7, characterized in that, The slider has a hollow cavity, within which a movement track for the spring pin is formed. The slider has openings on both sides for the extension and retraction of the spring pin. The guide rail groove is provided with multiple locking grooves at equal intervals along the longitudinal direction. The spring pin has a locking position where the pin is embedded in the locking groove to lock the slider relative to the guide rail groove, and a release position where the pin retracts inward to disengage from the locking groove.

9. The novel stacking rack according to claim 1, characterized in that, At least one of the first column structure (2) and the second column structure (3) is provided with a shelf, which is parallel to the horizontal plane.

10. The novel stacking rack according to claim 1, characterized in that, The main support (1) includes two parallel transverse support beams (7) and longitudinal support beams connected to both ends of the transverse support beams (7) to form a rectangular frame structure. The height of the transverse support beams (7) is L, wherein 200mm ≥ L ≥ 160mm.

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