Cushioned wooden pallet

Abstract

The application provides a shock-absorbing wooden pallet, and belongs to the technical field of warehouse logistics. In view of the poor reliability and compatibility of the shock-absorbing wooden pallet, the application provides a shock-absorbing wooden pallet, which comprises a bearing layer and a plurality of support assemblies arranged below the bearing layer. The bearing layer comprises a plurality of panels arranged in a column along a first direction. The plurality of support assemblies are arranged in a row and spaced apart parallel to the first direction, and an accommodating space is formed between adjacent support assemblies, which is used for the forklift fork to enter and exit. The support assembly comprises a bridge plate and a bottom plate arranged oppositely, and a plurality of isolation pieces arranged between the bridge plate and the bottom plate, and the plurality of isolation pieces are arranged spaced apart along the first direction. In addition, the isolation piece comprises a plurality of steel plates and elastic pads arranged in layers and alternately. The panel, the bridge plate and the bottom plate are all wooden boards. The application forms the isolation piece by alternately stacking the steel plate and the elastic pad, and has high vertical bearing capacity and strong horizontal shock-absorbing performance, thereby improving the reliability, and at the same time, the main structure is basically unchanged, and the compatibility is improved.

Description

Technical Field

[0001] This application relates to the field of warehousing and logistics technology, and in particular to shock-absorbing wooden pallets. Background Technology

[0002] Wooden pallets are horizontal platform devices made of wood. They are the basic carriers for unitized logistics operations and are widely used in all aspects of the supply chain, including production, warehousing, and transportation. With the rapid development of industries such as precision manufacturing, electronics, and medical devices, the market demand for vibration protection during cargo transportation is increasing. Traditional wooden pallets only have basic cargo carrying and stacking functions and lack targeted shock absorption designs.

[0003] In practical applications, goods are inevitably subjected to horizontal (such as inertial forces during turning and starting / stopping) and vertical (such as impact forces during loading and unloading) vibrations during forklift handling, rack storage and retrieval, and vehicle transportation. Especially for fragile or highly sensitive goods such as precision instruments, glass products, and electronic components, traditional wooden pallets cannot effectively absorb vibration energy, which can easily lead to damage to goods, performance failure, and economic losses to enterprises.

[0004] Furthermore, during an earthquake, the ground vibrations generate horizontal and vertical accelerations. Traditional wooden pallets are in rigid contact with the shelving, so the vibrations are transmitted to the goods with almost no attenuation. The weight of the goods increases the overall inertia of the shelving, amplifying the amplitude of horizontal and vertical swaying. This can easily exacerbate the deformation of the shelving beams and uprights, and even increase the risk of goods falling or the shelving overturning, causing huge losses to businesses.

[0005] To address the aforementioned issues, existing technologies have made corresponding improvements, such as adding rubber pads or spring structures to the bottom of wooden pallets to achieve shock absorption. However, these have significant limitations: 1) Rubber pads lack vertical stiffness and are prone to excessive deformation when bearing heavy loads. They also have weak horizontal shock absorption capabilities and cannot cope with multi-directional vibrations; 2) While spring structures can absorb some vertical impacts, their horizontal stability is poor, which can easily lead to goods tipping over. Furthermore, after long-term use, springs are prone to rust and fatigue failure, resulting in high maintenance costs; 3) Existing shock-absorbing pallets are mostly custom-designed structures with poor compatibility with conventional warehousing equipment (such as forklift forks and rack shelves), limiting their applicability. Utility Model Content

[0006] The purpose of this application is to address the problem of poor reliability and compatibility of existing shock-absorbing wooden pallets. Therefore, this application provides a shock-absorbing wooden pallet that uses alternating layers of steel plates and elastic pads to form isolation components, possessing both high vertical load-bearing capacity and strong horizontal shock absorption performance, thereby improving reliability. At the same time, the main structure remains essentially unchanged, thus improving compatibility.

[0007] This application provides a shock-absorbing wooden pallet, including a load-bearing layer and a plurality of support components disposed below the load-bearing layer; The supporting layer includes a plurality of panels arranged in a row along a first direction; The plurality of support components are arranged in a row parallel to the first direction, and there are gaps between adjacent support components to form a receiving space, which is used for the forks of the forklift to enter and exit. The support assembly includes two support plates disposed opposite to each other, and a plurality of spacers disposed between the two, the plurality of spacers being spaced apart along the first direction; and, The isolation element includes multiple steel plates stacked and alternately arranged and multiple elastic pads; Both the panel and the support plate are made of wood.

[0008] By adopting the above technical solution, the isolation component can convert some of the vibration energy into heat energy and dissipate it, thereby significantly reducing the vibration amplitude transmitted to the load-bearing layer and the goods. Furthermore, the isolation component, which is composed of multiple steel plates and multiple elastic pads stacked alternately, has good horizontal stability and strong vertical stiffness, thus ensuring the pallet's load-bearing capacity while cushioning vibrations. It has both high vertical load-bearing capacity and strong horizontal vibration cushioning performance, improving the reliability of the cushioned wooden pallet. It can meet the safe transfer requirements of highly sensitive goods and can isolate some vibrations to ensure the safety of goods in the event of a sudden earthquake. Moreover, the main structure of the pallet formed by the load-bearing layer and multiple support components is basically the same as the structure of a standard wooden pallet, thereby improving the compatibility of this wooden pallet.

[0009] In some embodiments, the steel plate is a Q235B hot-rolled steel plate, the elastic pad is natural rubber, the thickness ratio of the steel plate to the elastic pad is 1:(3-4), and the total number of layers is 10-15.

[0010] In some embodiments, the top and bottom layers of the insulating member are both steel plates.

[0011] By adopting the above technical solutions, the load-bearing capacity of pallets can be further improved, and the stability and durability of pallets during long-term use can be enhanced.

[0012] In some embodiments, the elastic pad is a rubber pad, and the rubber pad is formed by vulcanization and powder coating on the steel plate.

[0013] By adopting the above technical solution, the overall integrity of the steel plate and rubber pad is improved, making them less likely to separate, thereby improving the reliability of the pallet.

[0014] In some embodiments, the spacer is connected to the support plate by fasteners or adhesives; The fastener is an M8×50 bolt; the adhesive is epoxy resin glue.

[0015] In some embodiments, three isolation members are provided, with two isolation members located at both ends of the support plate and the remaining isolation member located at the center of the support plate.

[0016] In some embodiments, three of the plurality of support components are provided, with two of the support components located on both sides of the load-bearing layer and the remaining support component located at the center of the load-bearing layer.

[0017] Other features and corresponding beneficial effects of this application will be described in the latter part of the specification, and it should be understood that at least some of the beneficial effects will become obvious from the description in this application. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this application; Figure 2 This is a schematic diagram of the structure of the isolation component in this application.

[0019] Explanation of reference numerals in the attached figures: 1. Load-bearing layer; 11. Panel; 2. Support components; 201. Accommodation space; 21. Bridge plate; 22. Base plate; 23. Isolation components; 231. Steel plate; 232. Elastic pad. Detailed Implementation

[0020] The following specific embodiments illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification. Although the description of this application will be presented in conjunction with preferred embodiments, this does not mean that the features of this application are limited to this embodiment. On the contrary, the purpose of describing the application in conjunction with embodiments is to cover other options or modifications that may be derived based on the claims of this application. To provide a thorough understanding of this application, many specific details will be included in the following description. This application may also be implemented without using these details. Furthermore, to avoid confusion or obscuring the focus of this application, some specific details will be omitted in the description. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other.

[0021] It should be noted that in this specification, similar reference numerals and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0022] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing this application and for simplification, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," and "third" 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. Therefore, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more. Unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or a connection within two elements. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0023] Please see Figure 1-2 , Figure 1 This is a schematic diagram of the structure of this application; Figure 2 This is a schematic diagram of the structure of the isolation element 23 in this application.

[0024] This application provides a shock-absorbing wooden pallet, including a load-bearing layer 1 and a plurality of support components 2 disposed below the load-bearing layer 1. The load-bearing layer 1 includes a plurality of panels 11 arranged in a row along a first direction a. The plurality of support components 2 are arranged in a row parallel to the first direction a, thereby connecting the plurality of panels 11 in a row through the support components 2. Furthermore, there are gaps between adjacent support components 2 to form a receiving space 201, which is used for the entry and exit of forklift forks. That is, the main structure of the pallet is formed by the load-bearing layer 1 and the plurality of specifically arranged support components 2 below it. The main structure of the pallet is basically the same as the structure of a standard wooden pallet, thereby making the wooden pallet highly compatible. Furthermore, the dimensions of the main structure of the pallet and the dimensions of the receiving space 201 can also be set according to the dimensions of a standard wooden pallet, thereby directly adapting to existing warehousing equipment such as forklifts, stackers, and automated racks. This method is simple to design and manufacture, and can greatly improve the compatibility of the wooden pallet.

[0025] The support assembly 2 includes two support plates disposed opposite each other, and a plurality of spacers 23 disposed between them. The plurality of spacers 23 are spaced apart along a first direction a, thereby controlling the overall weight of the pallet and controlling costs. Furthermore, the two support plates clamping the plurality of spacers 23 to form an integral structure can improve the support capacity and stability of the support assembly 2, thereby improving the reliability of the pallet.

[0026] Based on their connection with the load-bearing layer 1, the two support plates can be divided into a bridge plate 21 and a bottom plate 22. The bridge plate 21 directly contacts and connects to the panel 11 of the load-bearing layer 1. The bottom plate 22 is not directly connected to the load-bearing layer 1, but is located below the bridge plate 21 and cooperates with it to clamp the isolation member 23, serving as the bottom surface of the entire pallet.

[0027] The panel 11 and the support plate, namely the panel 11, the bridge plate 21 and the bottom plate 22, are all made of wood, so that most of the main structure of the pallet is made of wood, which has a certain shock absorption effect, and is low in cost and easy to maintain. The wood can be made from the wood of existing wooden pallets.

[0028] The isolation component 23 comprises multiple steel plates 231 stacked and alternately arranged and multiple elastic pads 232. This allows some of the vibration energy to be dissipated as heat primarily through the elastic pads 232, significantly reducing the vibration amplitude transmitted to the load-bearing layer 1 and the cargo. Furthermore, the isolation component 23, composed of multiple steel plates 231 and multiple elastic pads 232 stacked and alternately arranged, exhibits good horizontal stability and strong vertical stiffness. This ensures the pallet's load-bearing capacity while providing shock absorption, combining high vertical load-bearing capacity with strong horizontal shock absorption performance. This improves the reliability of the shock-absorbing wooden pallet, meeting the safe transfer requirements of highly sensitive goods, and can isolate some vibrations during sudden earthquakes, ensuring cargo safety.

[0029] In other words, the multi-layer elastic pad 232 can effectively absorb horizontal vibration energy (such as inertial forces during handling and lateral swaying during transportation), allowing for large horizontal deformation (e.g., the maximum horizontal deformation can be no less than 15mm). Simultaneously, the elasticity of the elastic pad 232 enables automatic reset after vibration, preventing cargo shifting. The multi-layer steel plate 231, as a reinforcing material, significantly improves vertical stiffness, preventing excessive deformation of the shock-absorbing wooden pallet when bearing heavy loads, unlike single rubber pads or spring structures. For example, those skilled in the art can design pallets based on this structure to withstand vertical static loads of ≥1500kg, thus meeting the needs of most warehousing and logistics applications.

[0030] Furthermore, those skilled in the art also know that, according to earthquake engineering theory, when the natural period of a structure is far from the main energy frequency band of seismic waves (typically 0.2-2 seconds), the seismic force on the structure will be significantly reduced. In this embodiment, the inclusion of isolator 23 significantly extends the natural vibration period of the "pallet + goods" system. Therefore, by selecting the number of isolator layers and their specific materials, experiments can be conducted to ensure that the natural period of the pallet system avoids the dominant period of common ground motions, thus "avoiding" the main energy impact of earthquakes. In other words, this wooden pallet, through the synergistic effect of "energy dissipation" and "period extension," effectively isolates ground vibrations during an earthquake, providing crucial protection for goods and shelving.

[0031] In one specific embodiment, the steel plate 231 is made of Q235B hot-rolled steel plate, and the elastic pad 232 is made of natural rubber. The thickness ratio of the steel plate 231 to the elastic pad 232 is 1:(3-4), and the total number of layers is 10-15. For example, a 3mm thick Q235B hot-rolled steel plate and a 10mm thick natural rubber are used, with a total of 13 layers. Testing shows that the horizontal damping efficiency (vibration energy absorption rate) of this insulating component 23 is ≥60%, and its vertical load-bearing capacity is more than 30% higher than that of a traditional wooden pallet of the same size.

[0032] In one embodiment, the top and bottom layers of the separator 23 are both steel plates 231, that is, the bridge plate 21 and the bottom plate 22 are in direct contact with the steel plates 231. Due to the higher rigidity of the steel plates 231 compared with the elastic pads 232, the deformation is small, which can further improve the load-bearing capacity of the pallet and improve the stability and durability of the pallet during long-term use.

[0033] In one embodiment, the elastic pad 232 is a rubber pad, and the rubber pad is formed by vulcanization and powder coating on the steel plate 231, which improves the overall bonding between the steel plate 231 and the rubber pad, making them less prone to separation. Moreover, this molding process is mature and can effectively control costs. At the same time, this molding process makes the isolation component 23 less prone to corrosion, with a long service life, usually not less than 3 years, thus reducing maintenance costs.

[0034] In one embodiment, the spacer 23 is connected to the support plate by fasteners or adhesives, wherein fastener connection has better reliability and adhesive connection is convenient and easy to operate.

[0035] In one specific implementation, the fastener is an M8×50 bolt, which has high strength and meets the requirements.

[0036] In one specific embodiment, the adhesive is an epoxy resin glue, which can ensure a strong bond by allowing it to stand for 24 hours.

[0037] In one embodiment, three isolation members 23 are provided, with two isolation members 23 located at the two ends of the support plate respectively, and the remaining isolation member 23 located at the center of the support plate, thereby ensuring the stable support and shock absorption effect of the single support component 2.

[0038] In one embodiment, three of the multiple support components 2 are provided, with two support components 2 located on both sides of the load-bearing layer 1 and the remaining support component 2 located in the center of the load-bearing layer 1, thereby ensuring the overall reliability of the pallet and clearly distinguishing the two branches of the forklift fork, ensuring that the forklift is lifted and transferred close to the center, thus improving safety.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A shock-absorbing wooden pallet, characterized in that, It includes a load-bearing layer and multiple support components disposed below the load-bearing layer; The supporting layer includes a plurality of panels arranged in a row along a first direction; The plurality of support components are arranged in a row parallel to the first direction, and there are gaps between adjacent support components to form a receiving space, which is used for the forks of the forklift to enter and exit. The support assembly includes two support plates disposed opposite to each other, and a plurality of spacers disposed between the two, the plurality of spacers being spaced apart along the first direction; and, The isolation element includes multiple steel plates stacked and alternately arranged and multiple elastic pads; Both the panel and the support plate are made of wood.

2. The shock-absorbing wooden pallet according to claim 1, characterized in that, The steel plate is made of Q235B hot-rolled steel plate, the elastic pad is made of natural rubber, the thickness ratio of the steel plate to the elastic pad is 1:(3-4), and the total number of layers is 10-15.

3. The shock-absorbing wooden pallet according to claim 1, characterized in that, The top and bottom layers of the isolation component are both made of steel plates.

4. The shock-absorbing wooden pallet according to claim 1, characterized in that, The elastic pad is a rubber pad, and the rubber pad is formed by vulcanization and powder coating on the steel plate.

5. The shock-absorbing wooden pallet according to claim 1, characterized in that, The isolation element is connected to the support plate by fasteners or adhesives; The fastener is an M8×50 bolt; the adhesive is epoxy resin glue.

6. The shock-absorbing wooden pallet according to claim 1, characterized in that, There are three isolation components, with two of them located at the two ends of the support plate and the remaining one located at the center of the support plate.

7. The shock-absorbing wooden pallet according to claim 1, characterized in that, The plurality of support components are provided in three parts, with two of the support components located on both sides of the bearing layer and the remaining support component located at the center of the bearing layer.

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