Floating support structure, pallet using the same, and manufacturing method

Abstract

This application relates to the technical field of pallets and discloses a floating support structure, a pallet using the structure, and a manufacturing method. The floating support structure comprises a load-bearing portion and a support portion. The load-bearing portion is provided with at least two expansion slots on a side away from the object being placed. The support portion is sealingly and slidably connected to the expansion slots, with one end extending out of the slot. A channel is provided within the load-bearing portion for connecting the multiple expansion slots. The channel is located at one end of the multiple expansion slots away from the support portion, and both the expansion slots and the channel are filled with hydraulic fluid. This application has the advantage of reducing the impact on the stability of palletized cargo during transportation.

Description

Technical Field

[0001] The present application relates to the technical field of pallets, and in particular to a floating support structure, a pallet using the structure, and a manufacturing method. Background Art

[0002] A pallet is a medium that transforms static goods into dynamic goods. It is a cargo platform, and it is also an active platform, or a movable ground. Even goods that lose their flexibility when placed on the ground will immediately become active and become flexible mobile goods once they are loaded on a pallet, because the goods loaded on the pallet are always ready to move. This dynamic loading and unloading method, which uses pallets as basic tools, is called pallet operation. Pallets can be divided into types such as wood, steel, plastic, and composite material according to their materials. Among them, plastic pallets have different specifications and sizes, and are classified into the following types: nine-foot grid plastic pallets, nine-foot flat plastic pallets, Sichuan-shaped grid plastic pallets, Sichuan-shaped flat plastic pallets, Tian-shaped grid plastic pallets, blow-molded nine-foot plastic pallets, and blow-molded double-sided plastic pallets.

[0003] Since plastic pallets are generally one-piece molded, in actual use, when transporting palletized goods, especially when the vehicle is on a bumpy road, the goods will also be affected by the bumps, thereby affecting the stability of the goods. Therefore, there is room for improvement. Summary of the Invention

[0004] In order to reduce the impact on the stability of palletized cargo during transportation, the present application provides a floating support structure, a pallet using the structure, and a manufacturing method.

[0005] On the one hand, the present application provides a floating support structure, which adopts the following technical solutions:

[0006] A floating support structure includes a bearing portion and a supporting portion, wherein at least two expansion slots are provided on the side of the bearing portion away from the placed object, and the supporting portion is sealingly and slidably connected to the expansion slots and one end extends out of the expansion slots; a channel for connecting multiple expansion slots is provided inside the bearing portion, and the channel is located at one end of the multiple expansion slots away from the supporting portion, and both the expansion slots and the channel are filled with hydraulic fluid.

[0007] By adopting the above technical solution, when the transported goods are subject to bumps, the shaking of the goods will cause the supporting part to be bumped first. However, since the liquids in the multiple expansion grooves are connected, when the supporting part is subject to bumps, the relative depth of the supporting part in the expansion groove will change. At the same time, the multiple supporting parts are affected by the hydraulic liquid, which will also affect the relative depths of other supporting parts. Therefore, it can play a certain buffering effect and has a certain damping effect, thereby reducing the impact of the bumps on the objects placed on the load-bearing part.

[0008] Optionally, a mounting groove is provided in the telescopic groove at one end of the telescopic groove away from the supporting part, and an elastic ring is provided in the mounting groove; a first driving component for reducing the inner diameter of the elastic ring is provided on the bearing part, and a second driving component for reducing the inner diameter of the elastic ring is provided on the supporting part.

[0009] By adopting the above technical solution, an elastic ring is additionally provided, and the inner diameter of the elastic ring is changed by utilizing the first drive assembly and / or the second drive assembly, thereby changing the flow rate of the hydraulic liquid passing through the elastic ring; when the inner diameter of the elastic ring is reduced, the flow rate of the liquid slows down, especially when carrying heavy cargo, the depth of the support portion relative to the telescopic groove changes relatively slowly, thereby having a greater damping effect, which can further reduce the impact of bumps on the stability of the carried cargo; at the same time, after the inner diameter of the elastic ring is reduced, it can also serve the purpose of limiting the displacement of the support portion and limiting the overall tilt angle of the load-bearing portion.

[0010] Optionally, the first driving assembly includes an elastic ring with a notch that is clamped on the outside of the elastic ring, and a first wedge block is fixedly connected to the outside of the elastic ring. The outside of the elastic ring abuts against the inner wall of the mounting groove relative to one side of the first wedge block, and the first wedge block is sealingly and slidingly connected to the bearing part; a pushing assembly is slidably connected to the bearing part for abutting and pushing the first wedge block close to the inner side of the elastic ring.

[0011] By adopting the above technical solution, the displacement of the first wedge block is pushed by the pushing component, thereby changing the inner diameter of the elastic ring with the notch, thereby changing the inner diameter of the elastic ring, and then changing the inner diameter of the elastic ring. Therefore, the size of the elastic ring can be adjusted, the flow rate of the hydraulic liquid can be changed, and the stability of the carried objects can be improved; when there is no pushing component, since the elastic ring has a certain elastic deformation ability, it is also beneficial to the resetting of the first wedge block.

[0012] Optionally, the pushing assembly includes a first push rod, one end of the first push rod away from the first wedge block protrudes from the upper part of the bearing portion, and the other end of the first push rod is used to abut against the inclined surface on the first wedge block and to push the first wedge block close to the elastic ring.

[0013] By adopting the above technical solution, when cargo is placed on the load-bearing part, the first push rod will be pressed, so that the first push rod pushes the first wedge block close to the inner side of the elastic ring, thereby reducing the inner diameter of the elastic ring and changing the flow rate of the hydraulic fluid at the elastic ring; the heavier the cargo is, the greater the pressing depth of the first push rod. Although the change in the depth dimension here is relatively small, the elastic ring and the elastic ring are deformed in turn through the transmission of the first wedge block, and the inner diameter dimension of the elastic ring can still be changed; therefore, the heavier the cargo is, the greater the deformation degree of the elastic ring is, the stronger the anti-floating ability of the floating support structure is, the less it is affected by the inertia of the cargo, and therefore the more conducive to the stability of the load.

[0014] Optionally, the first push rod is telescopically connected to the bearing portion via a first elastic member.

[0015] By adopting the above technical solution, when there is no cargo being carried, although the first wedge block will be helped to push the first push rod in the opposite direction under the action of the elastic ring, the addition of the first elastic member will help to better reset the first push rod, and may prevent the first push rod from always being in contact with the first wedge block, or may help to prevent the first push rod from falling off the load-bearing part, thereby improving the stability of the overall structure.

[0016] Optionally, the pushing assembly includes a second push rod, which extends from one end of the first wedge block toward the bottom of the support portion and is used to abut against the placement surface; the other end of the second push rod is used to abut against the inclined surface of the first wedge block and to push the first wedge block close to the elastic ring.

[0017] By adopting the above technical solution, when the load-bearing part tilts, the second push rod will be abutted by the placement surface, thereby pushing the displacement of the first wedge block, thereby changing the shape of the elastic ring, and then tightening the elastic ring, reducing the inner diameter of the elastic ring, changing the flow rate of the hydraulic fluid, and thus slowing down the tilting speed of the load-bearing part; even if the cargo is light, but the tilt angle is large, due to the presence of the second push rod, the inner diameter of the elastic ring is eventually changed, so that when the tilt angle is larger, the load-bearing part will tilt more slowly, thereby cushioning the bumps. During the bumps, or when the vehicle is going uphill or downhill, the floating support structure can be continuously adjusted and then gradually maintain relative stability.

[0018] Optionally, the second push rod is telescopically connected to the bearing portion via a second elastic member.

[0019] By adopting the above technical solution, when there is no tilting of the cargo, although the first wedge block will be helped to push the second push rod in the opposite direction under the action of the elastic ring, the addition of the second elastic member will help the second push rod to better reset on the load-bearing part and prevent it from falling off.

[0020] Optionally, the pushing assembly includes a third push rod and a fourth push rod, the end of the third push rod away from the first wedge block protruding from the upper part of the bearing portion, the other end of the third push rod is used to abut against the first inclined surface of the first wedge block, and is used to push the first wedge block close to the elastic ring; the end of the fourth push rod away from the first wedge block extends toward the bottom of the support portion, and is used to abut against the placement surface; the other end of the fourth push rod is used to abut against the second inclined surface of the first wedge block, and is used to push the first wedge block close to the elastic ring.

[0021] By adopting the above technical solution, the third push rod is used to push the upper part of the load-bearing part, and the crimping depth of the third push rod is changed according to the weight of the load, thereby changing the inner diameter of the spring coil. Therefore, the heavier the cargo, the better the buffering effect; the fourth push rod is used to push the lower part of the load-bearing part, which can achieve a better buffering effect even if the cargo is light and has a large degree of inclination.

[0022] Optionally, the third push rod is telescopically connected to the bearing portion via a third elastic member, and the fourth push rod is telescopically connected to the bearing portion via a fourth elastic member.

[0023] By adopting the above technical solution, the provision of the third elastic member is conducive to the resetting of the third push rod, and the provision of the fourth elastic member is conducive to the resetting of the fourth push rod.

[0024] Optionally, the second driving assembly includes a pushing portion slidably connected to the mounting groove, and the pushing portion is fixedly connected to the supporting portion; when the pushing portion approaches the elastic ring, it is used to squeeze the elastic ring.

[0025] By adopting the above technical solution, when the load-bearing part is bumped and tilted, the support part at the lower end of the tilt will move toward the elastic ring, so that the pushing part squeezes the elastic ring. Since the elastic ring is still under the pressure of the hydraulic liquid when it is not squeezed, it will abut against the side wall of the installation groove; when the elastic ring is squeezed, it is deformed, and the inner diameter of the elastic ring will be reduced. Therefore, when tilting occurs, the flow velocity at the corresponding lower end of the tilt will be reduced, which is conducive to slowing down the tilting speed at this location, thereby helping to improve the stability of the load-bearing object.

[0026] Optionally, an elastic protrusion facing the inside of the elastic ring is provided on the inner side of the elastic ring.

[0027] By adopting the above technical solution, an elastic protrusion is added, which is conducive to further reducing the size of the flow channel inside the elastic ring, thereby further facilitating the flow of heavier objects or load-bearing parts with larger inclinations, and making the space for the hydraulic liquid to flow through the elastic protrusion smaller, thereby further facilitating the reduction of the flow rate of the hydraulic liquid, thereby providing a buffering effect on the load and reducing the interference of vibration on the stability of the goods.

[0028] Optionally, one end of the elastic ring close to the support portion is in a flared shape; and / or one end of the elastic ring away from the support portion is in a flared shape.

[0029] By adopting the above technical solution, the flared shape is set at one end or both ends of the elastic ring, which plays a guiding role in the pushing of the pushing part, so that the elastic ring is more likely to bulge toward the inside of the elastic ring during the deformation process, thereby being more conducive to playing a flow limiting role and improving the stability of the floating support structure when it is subjected to bumps.

[0030] Optionally, a limiting groove is provided on the outer side of the elastic ring at a position corresponding to the elastic ring.

[0031] By adopting the above technical solution, the limiting groove is conducive to limiting the position of the elastic ring relative to the elastic ring, thereby improving the stability of the relative position of the two; and the limiting groove is more conducive to causing the elastic ring to deform, thereby making the elastic ring more conducive to playing a flow limiting role, and thus having a better damping effect.

[0032] Optionally, a sealing member is provided between the support portion and the telescopic slot, and the sealing member is pressed tightly between the inner wall of the telescopic slot and the outer wall of the support portion.

[0033] By adopting the above technical solution, the sealing member is helpful to improve the sealing performance of the device.

[0034] Optionally, the support portion is rotatably connected to the telescopic slot.

[0035] By adopting the above technical solution, the support part can not only be slidably connected to the telescopic slot, but also be rotatably connected to the telescopic slot. When the bearing part is twisted relative to the support part, it can have a buffering effect to a certain extent.

[0036] On the one hand, the present application provides a pallet, which adopts the following technical solution:

[0037] A pallet comprises any one of the above-mentioned floating support structures, wherein the bearing portion comprises a bearing panel and a structural member located on one side of the bearing panel; a plurality of telescopic slots are provided and are located on a side of the structural member away from the bearing panel.

[0038] By adopting the above technical solution, when a pallet carrying cargo is subjected to bumps during transportation, the support at the bottom of the pallet continuously adjusts its height based on the location of the bump, utilizing the floating effect of hydraulic fluid to provide a cushioning effect. Furthermore, the inner diameter of the elastic ring can be adjusted based on the weight of the cargo and the tilt of the load-bearing panel. As a result, the heavier the cargo and the greater the tilt angle, the smaller the inner diameter of the elastic ring, the greater the damping between the structural member and the support, and the slower the cargo follows the changes in the support, thus improving the pallet's cushioning capacity. The physical principle employed is that greater damping consumes more kinetic energy and slows the object's movement.

[0039] Optionally, the channel is provided in the bearing panel, a steel pipe is injection-molded in the bearing panel, and the steel pipe is provided in the channel and communicated with the channel.

[0040] By adopting the above technical solution, steel pipes are added, which not only enhances the structural strength of the pallet but also reduces the difficulty of the pallet manufacturing process.

[0041] On the other hand, the present application provides a method for manufacturing a pallet, which adopts the following technical solution:

[0042] A method for manufacturing a pallet, comprising the following steps:

[0043] The bearing part is formed, the welded steel pipe is placed in the first mold, and the molten plastic raw material is injected into the first mold. A reserved opening communicating with the channel is reserved on the bearing part;

[0044] forming a support portion, and injecting molten plastic material into the second mold;

[0045] To assemble, insert the support part into the expansion slot and install the seal between the support part and the expansion slot; after installing the support part, pour hydraulic liquid into the reserved opening and seal the reserved opening.

[0046] In summary, this application includes at least one of the following beneficial technical effects:

[0047] 1. The floating support structure adopts a floating hydraulic structure, which uses the damping effect generated by hydraulic changes to slow down the tilting speed of the load-bearing part, thereby achieving a shock-absorbing and buffering effect and improving the stability of cargo transportation;

[0048] 2. The floating support structure is provided with two types of structures. The inner diameter of the elastic ring can be changed according to the weight of the cargo, thereby changing the damping size of the floating support structure, which is conducive to adaptively adjusting the floating capacity of the floating support structure;

[0049] 3. The floating support structure changes the inner diameter of the elastic ring according to the degree of inclination of the load-bearing part, thereby changing the damping size of the floating support structure, which helps prevent the cargo from tilting excessively, especially when the vehicle is driving uphill or downhill, or in bumpy conditions;

[0050] 4. The floating support structure can adjust the damping of the floating support structure from multiple angles based on the weight of the cargo and the inclination angle of the load-bearing part, thereby improving the stability of cargo transportation;

[0051] 5. The addition of steel pipes in the pallet not only facilitates processing and production, but also improves the structural strength of the pallet. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] Figure 1 It is a schematic diagram of the overall structure of a floating support structure.

[0053] Figure 2 The cross-sectional view of a floating support structure is an embodiment without an elastic ring.

[0054] Figure 3 The present invention is a cross-sectional view of a floating support structure, which is one embodiment of the structure having an elastic ring and a first push rod.

[0055] Figure 4 It is a structural diagram of an elastic ring in a floating support structure.

[0056] Figure 5 It is a cross-sectional view of an elastic ring in a floating support structure.

[0057] Figure 6 This is a cross-sectional view of a floating support structure, which is another embodiment in which an elastic ring and a first push rod are provided.

[0058] Figure 7 The present invention is a cross-sectional view of a floating support structure, which is a cross-sectional view of an embodiment in which an elastic ring and a second push rod are provided.

[0059] Figure 8 The present invention is a cross-sectional view of a floating support structure, which is an implementation method in which an elastic ring, a third push rod and a fourth push rod are provided.

[0060] Figure 9 The present invention is a cross-sectional view of a floating support structure, which is an implementation method provided with an elastic ring and a pushing part.

[0061] Figure 10 This is a cross-sectional view of one type of elastic ring structure in a floating support structure.

[0062] Figure 11This is a cross-sectional view of one type of elastic ring structure in a floating support structure.

[0063] Figure 12 This is a cross-sectional view of one type of elastic ring structure in a floating support structure.

[0064] Figure 13 This is a cross-sectional view of one type of elastic ring structure in a floating support structure.

[0065] Figure 14 This is a cross-sectional view of one type of elastic ring structure in a floating support structure.

[0066] Figure 15 This is a cross-sectional view of one type of elastic ring structure in a floating support structure.

[0067] Figure 16 This is a cross-sectional view of one type of elastic ring structure in a floating support structure.

[0068] Figure 17 This is a cross-sectional view of one type of elastic ring structure in a floating support structure.

[0069] Figure 18 The present invention is a cross-sectional view of a floating support structure, which is an implementation method in which an elastic ring, a pushing portion, a third push rod and a fourth push rod are provided.

[0070] Figure 19 It is a schematic diagram of the overall structure of a pallet.

[0071] Figure 20 It is a structural diagram of steel pipes in a pallet.

[0072] Figure 21 The present invention is a cross-sectional view of a tray, which is an embodiment without an elastic ring.

[0073] Figure 22 The present invention is a cross-sectional view of a tray, which is an embodiment in which an elastic ring and a first push rod are provided.

[0074] Figure 23 The present invention is a cross-sectional view of a tray, which is an embodiment in which an elastic ring and a second push rod are provided.

[0075] Figure 24 The present invention is a cross-sectional view of a tray, which is an embodiment in which an elastic ring, a third push rod and a fourth push rod are provided.

[0076] Figure 25 The present invention is a cross-sectional view of a tray, which is an embodiment in which an elastic ring and a pushing portion are provided.

[0077] 1. Bearing portion; 2. Support portion; 3. Telescopic groove; 4. Channel; 5. Mounting groove; 6. Elastic ring; 7. Elastic ring; 8. First wedge block; 9. First push rod; 10. First elastic member; 11. Second push rod; 12. Second elastic member; 13. Third push rod; 14. Fourth push rod; 15. Third elastic member; 16. Fourth elastic member; 17. Pushing portion; 18. Elastic protrusion; 19. Limiting groove; 20. Sealing member; 21. Bearing panel; 22. Structural member; 23. Steel pipe; 24. First inclined plane; 25. Second inclined plane; 26. Telescopic zone; 27. Sliding zone; 28. First push plate; 29. ​​Second push plate; 30. Third push plate; 31. Fourth push plate; 32. Accommodating groove. DETAILED DESCRIPTION

[0078] The present application will be further described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present application and are not intended to limit the present application.

[0079] The embodiment of the present application discloses a floating support structure.

[0080] Reference Figure 1 and Figure 2 , a floating support structure includes a load-bearing part 1 and a plurality of support parts 2 perpendicular to one side of the load-bearing part 1. In this embodiment, the load-bearing part 1 is in the shape of a square plate as a whole, and one side thereof is integrally formed with a plurality of square columnar structures distributed in an array. In this embodiment, four are taken as an example for demonstration. Each columnar structure is provided with a telescopic groove 3 on the side away from the object to be placed, and the support part 2 is sealed and slidably connected in the telescopic groove 3. A channel 4 for connecting the multiple telescopic grooves 3 is provided inside the load-bearing part 1, and the channel 4 is located at one end of the four telescopic grooves 3 away from the support part 2. In order to make the floating support structure have a certain damping, the telescopic groove 3 and the channel 4 are filled with hydraulic liquid. When bumps occur during transportation, the support part 2 is subjected to the resistance of the bumps and the hydraulic liquid. Different support parts 2 will have different floating movements in different floating grooves, so that the load-bearing part 1 remains relatively stable.

[0081] To improve the sealing performance of the structure, a cylindrical sealing member 20 is provided between the support portion 2 and the expansion slot 3. The cylindrical sealing member 20 is tightly pressed between the inner wall of the expansion slot 3 and the outer wall of the support portion 2. The cylindrical sealing member 20 not only helps improve the sealing performance of the device, but also uses its own friction to limit the position of the support portion 2 to a certain extent, making it difficult for the support portion 2 to escape from the expansion slot 3.

[0082] Reference Figure 3 、 Figure 4 and Figure 5To further enhance the floating support structure's adaptability to various weights or usage scenarios, the following structure is added: A mounting groove 5 is provided within one or more expansion slots 3, located at the end of the slot 3 facing away from the support portion 2. An elastic ring 6 is installed within the mounting groove 5, coaxial with the slot 3. In this embodiment, the mounting groove 5 is an annular groove with an inner diameter larger than that of the slot 3 to facilitate the installation of the elastic ring 6. The elastic ring 6 is an annular columnar structure and is made of rubber or silicone. Under the pressure of the hydraulic fluid, the elastic ring 6 conforms to the sidewalls of the mounting groove 5.

[0083] In order to change the inner diameter of the elastic ring 6, thereby changing the size of the channel 4 at the inner diameter of the elastic ring 6, thereby changing the flow speed of the liquid when passing through the inner diameter of the elastic ring 6, and thus changing the floating damping of the floating support structure, there are three ways to change the inner diameter of the elastic ring 6:

[0084] The first way: a first driving component for reducing the inner diameter of the elastic ring 6 is provided on the bearing portion 1 .

[0085] The second method: a second driving component for reducing the inner diameter of the elastic ring 6 is provided on the support portion.

[0086] The third mode: the bearing portion 1 is provided with a first driving component for reducing the inner diameter of the elastic ring 6 , and the supporting portion 2 is provided with a second driving component for reducing the inner diameter of the elastic ring 6 .

[0087] By utilizing any of the three aforementioned methods to change the inner diameter of the load-bearing portion 1, reducing the inner diameter of the elastic ring 6 slows the flow of liquid through the inner diameter of the elastic ring 6 as the support portion 2 floats within the expansion slot 3. This slows the change in depth of the support portion 2 within the expansion slot 3, particularly when carrying heavy cargo. This provides greater damping, reducing instability caused by the cargo's high inertia, and thus further improving the stability of the cargo carried on the load-bearing portion 1. Furthermore, the reduced inner diameter of the elastic ring 6 also serves to limit the maximum displacement of the support portion 2, thereby limiting the overall tilt angle of the load-bearing portion 1.

[0088] For the first method of changing the inner diameter of the elastic ring 6, only the first drive assembly is provided:

[0089] Reference Figure 3 、 Figure 4 and Figure 5, the first driving component includes an elastic ring 7, which is an elastic metal ring with a cylindrical shape as a whole and a notch; the elastic ring 7 is coaxially mounted on the outside of the elastic ring 6. The outer wall of the elastic ring 7 is vertically fixed with a first wedge block 8, and the bearing part 1 is provided with a telescopic area 26 connected to the mounting groove 5. The first wedge block 8 is sealingly and slidably connected in the telescopic area 26 on the bearing part 1. The outer wall of the elastic ring 7 opposite to the first wedge block 8 abuts against the inner wall of the mounting groove 5; when the first wedge block 8 approaches or moves away from the elastic ring 7, the elastic ring 7 contracts or recovers. In one embodiment, the telescopic area 26 is located inside the bearing part 1, and the first wedge block 8 does not extend out of the side wall of the bearing part 1 during the sliding process. In order to achieve the sliding of the first wedge block 8, the bearing part 1 is provided with a pushing component for abutting and pushing the first wedge block 8 close to the inner side of the elastic ring 7. By pushing the first wedge block 8, the pushing assembly shifts the inner diameter of the notched elastic ring 7, thereby changing the inner diameter of the elastic ring 7 and, in turn, the inner diameter of the elastic ring 6. This allows the inner diameter of the elastic ring 6 to be adjusted, altering the flow rate of the hydraulic fluid and improving the damping of the floating support structure. Furthermore, when the pushing assembly stops pushing, the elastic potential energy released by the elastic ring 7 is converted into kinetic energy for its return, thereby facilitating the return of the first wedge block 8.

[0090] In order to improve the sealing of the structure, an annular sealing ring is further provided between the first wedge block 8 and the inner wall of the telescopic zone 26 , and the annular sealing ring is tightly pressed between the axial side wall of the first wedge block 8 and the inner wall of the telescopic zone 26 .

[0091] Reference Figure 6 In other embodiments, the telescopic zone 26 passes through the side wall of the bearing portion 1, and the first wedge block 8 can extend out of the side wall of the bearing portion 1 during the sliding process. This structure reduces the difficulty of production and is more convenient for production and manufacturing.

[0092] There are three structures for the push component:

[0093] The first structure for the push component:

[0094] Reference Figure 3 and Figure 6The push assembly includes a first push rod 9. A sliding zone 27 is defined on the load-bearing portion 1, parallel to the axial direction of the support portion 2. The first push rod 9 is slidably connected within the sliding zone 27 and is in communication with the telescopic zone 26. One end of the first push rod 9, distal from the first wedge block 8, protrudes from the upper portion of the load-bearing portion 1. The other end of the first push rod 9 is configured as a wedge-shaped end, designed to abut against the inclined surface of the first wedge block 8, which faces the top of the load-bearing portion 1. When the first push rod 9 is subjected to pressure from the cargo, it approaches the first wedge block 8 and pushes against it, causing the elastic ring 7 to contract and reducing the inner diameter of the elastic ring 6. To increase the contact area between the cargo and the first push rod 9, a first push plate 28 is fixedly mounted on the end of the first push rod 9 that protrudes from the upper end of the load-bearing portion 1. When cargo is placed on the load-bearing portion 1, the displacement of the first push rod 9 into the sliding zone 27 adaptively changes according to the cargo's weight, thereby varying the inner diameter of the elastic ring 6 according to the cargo's weight. Therefore, the heavier the cargo is, the greater the crimping depth of the first push rod 9, the greater the deformation of the elastic ring 6, the greater the damping of the floating support structure, and the smaller the influence of the cargo inertia, which is more conducive to improving the stability of the cargo on the load-bearing part 1.

[0095] To facilitate the resetting of first push rod 9, it is telescopically connected to support portion 1 via a first elastic member 10. First elastic member 10 is a spring that is sleeved over first push rod 9, with one end secured to first push rod 9 and the other to support portion 1. In actual use, although first wedge block 8 and elastic ring 7 facilitate the reverse push of first push rod 9, to reduce unnecessary friction between the first push rod 9 and first wedge block 8, first elastic member 10 facilitates rapid resetting of first push rod 9. The provision of first elastic member 10 also prevents first push rod 9 from falling off support portion 1, improving the stability of the overall structure.

[0096] The second structure for the push component:

[0097] Reference Figure 7The pushing assembly includes a second push rod 11. A sliding area 27 is also provided on the bearing portion 1 in parallel with the axial direction of the support portion 2, and the sliding area 27 is located at the bottom of the bearing portion 1. The second push rod 11 is slidingly connected in the sliding area 27. The end of the second push rod 11 away from the first wedge block 8 extends out of the bottom of the bearing portion 1 and extends toward the bottom of the support portion 2, for contacting with the placement surface of the floating support structure; and a second push plate 29 is also fixedly installed at the end of the second push rod 11 to increase the contact area with the placement surface. The other end of the second push rod 11 is set as a wedge-shaped end, for contacting the inclined surface of the first wedge block 8, and the inclined surface of the first wedge block 8 faces the side where the support portion 2 is located; the wedge-shaped end of the second push rod 11 is used to push the first wedge block 8 close to the elastic ring 7. When the load-bearing portion 1 tilts due to bumps or ups and downslopes, the second push rod 11 is abutted by the placement surface, thereby pushing the first wedge block 8 to push against the elastic ring 7, thereby reducing the inner diameter of the elastic ring 7. This increases the resistance of the hydraulic fluid flowing through the elastic ring 6, thereby increasing the damping of the floating support structure and mitigating the tilt of the load-bearing portion 1. Due to the configuration of the second push rod 11, even if the cargo is light, the damping can be adaptively adjusted according to the degree of tilt when the load-bearing portion 1 tilts, allowing the floating support structure to continuously float and adjust, and then gradually maintain relative stability.

[0098] Similarly, to facilitate the resetting of the second push rod 11 and reduce friction between the second push rod 11 and the first wedge block 8, the second push rod 11 is telescopically connected to the supporting portion 1 via a second elastic member 12. The second elastic member 12 is a spring that is sleeved on the second push rod 11. One end of the spring is fixedly mounted on the second push rod 11, and the other end is fixedly mounted on the supporting portion 1. In addition, the second elastic member 12 also helps prevent the second push rod 11 from falling off.

[0099] The third structure for the push component:

[0100] Reference Figure 8The pushing assembly includes a third push rod 13 and a fourth push rod 14. A sliding area 27 is also provided on the load-bearing part 1, parallel to the axial direction of the support part 2, and runs through the upper and lower parts of the load-bearing part 1. The third push rod 13 is slidably connected to the upper part of the sliding area 27. The end of the third push rod 13 away from the first wedge block 8 protrudes from the upper part of the load-bearing part 1; the other end of the third push rod 13 is a wedge-shaped end, which is used to abut against the first inclined surface 24 of the first wedge block 8, and the first inclined surface 24 faces the upper part of the load-bearing part 1. When the cargo is placed on the load-bearing part 1, the third push rod 13 will be subjected to the pressure of the cargo, thereby moving toward the first wedge block 8 and pushing the first wedge block 8, thereby tightening the elastic ring 7 and reducing the inner diameter of the elastic ring 6. In order to increase the contact area between the cargo and the third push rod 13, a third push plate 30 is fixedly installed on the end of the third push rod 13 protruding from the upper end of the load-bearing part 1. The fourth push rod 14 is slidably connected to the lower portion of the sliding zone 27. The end of the fourth push rod 14, away from the first wedge block 8, extends out of the bottom of the bearing portion 1 and toward the bottom of the support portion 2, for contact with the placement surface of the floating support structure. To increase the contact area between the fourth push rod 14 and the placement surface, a fourth push plate 31 is fixedly mounted to this end of the fourth push rod 14. The other end of the fourth push rod 14 is configured as a wedge-shaped end for contacting the second inclined surface 25 of the first wedge block 8, which is positioned toward the bottom of the bearing portion 1. The wedge-shaped end of the fourth push rod 14 is used to push the first wedge block 8 toward the elastic ring 7, thereby reducing the inner diameter of the elastic ring 6.

[0101] At the same time, to facilitate the resetting of the third push rod 13 and the fourth push rod 14 and to prevent them from falling off the load-bearing portion 1, the third push rod 13 is telescopically connected to the load-bearing portion 1 via a third elastic member 15, and the fourth push rod 14 is telescopically connected to the load-bearing portion 1 via a fourth elastic member 16. The third elastic member 15 and the fourth elastic member 16 are both springs, with one end of the third elastic member 15 fixedly mounted to the third push rod 13 and the other end fixedly mounted to the load-bearing portion 1; the fourth elastic member 16 is fixedly mounted to the fourth push rod 14 and the other end fixedly mounted to the load-bearing portion 1. In this embodiment, the simultaneous operation of the third push rod 13 and the fourth push rod 14 allows the damping of the floating support structure to be adjusted based on both the weight of the cargo and the tilt of the load-bearing portion 1. Therefore, the greater the weight of the cargo, and even when the cargo is light but tilts significantly, the better the cushioning effect. This provides a good cushioning effect not only for bumpy transport but also for uphill and downhill transport.

[0102] Among them, the springs in the first elastic member 10 to the fourth elastic member 16 mentioned above are all springs with relatively small elastic force, which do not play a large elastic buffering role for the weight of the cargo itself. The main purpose is to achieve the reset of the corresponding first push rod 9 to the fourth push rod 14.

[0103] Regarding the second case of changing the inner diameter of the elastic ring 6, only the second drive assembly is provided:

[0104] Reference Figure 9 The second drive assembly includes a pusher 17 that is slidably connected to the mounting groove 5. The pusher 17 is fixedly mounted on one end of the support portion 2 that extends into the telescopic groove 3. The connection between the pusher 17 and the support portion 2 is a detachable fixing method, such as screw fixing, clamping fixing, thread fixing, etc. The outer diameter of the pusher 17 is larger than the outer diameter of the support portion 2, and the pusher 17 is provided with a sliding space for the pusher 17 to slide along the axial direction of the support shaft in the mounting groove 5. Therefore, the pusher 17 can also play a role in limiting the position of the support portion 2. In order to ensure that the capacity of the hydraulic liquid between the support portion 2 and the elastic ring 6 is appropriate, a receiving groove 32 is provided in the middle of the support portion 2 and the pusher 17 on the side facing the elastic ring 6 for filling with hydraulic liquid. When the pusher 17 approaches the elastic ring 6, it squeezes the elastic ring 6. When not being squeezed by the pusher 17, the elastic ring 6 is subjected to the pressure of the hydraulic fluid and abuts against the sidewall of the mounting groove 5. When squeezed by the pusher 17, the elastic ring 6 deforms, and its inner diameter decreases. When the vehicle is jolted during transportation and the load-bearing portion 1 tilts, the support portion 2 at the lower end of the tilt moves toward the elastic ring 6, causing the pusher 17 to squeeze the elastic ring 6. Therefore, when tilting occurs, the inner diameter of the elastic ring 6 at the lower end of the tilt decreases, reducing the flow rate of the hydraulic fluid at this location and increasing damping. This slows the tilting speed at this location and improves the stability of the load-bearing portion 1 while carrying cargo.

[0105] Among them, when the implementation structure is not provided with a pushing part 17, in order to ensure that the support part 2 is not easily separated from the telescopic slot 3, a protrusion block is provided at the end of the support part 2 inserted into the telescopic slot 3, and the protrusion block is restricted by the sealing part 20, thereby ensuring that the support part 2 is limited in the telescopic slot 3.

[0106] In addition, the elastic ring 6 structure is also provided with a variety of situations:

[0107] Reference Figure 10 An annular retaining groove 19 is provided on the outer side of the elastic ring 6, corresponding to the position of the elastic ring 7. Retaining groove 19 stabilizes the relative position of the elastic ring 7 and the elastic ring 6, preventing the elastic ring 7 from easily separating from the elastic ring 6. Furthermore, the provision of retaining groove 19 further facilitates the inner side of the elastic ring 6 to bulge inward, thereby enhancing the flow limiting function of the elastic ring 6 and improving the damping effect of the floating support structure.

[0108] Reference Figure 11-13The end of the elastic ring 6 close to the support portion 2 is flared; and / or the end of the elastic ring 6 away from the support portion 2 is flared. The flared structure can be provided at one or both ends of the elastic ring 6. When the push portion 17 pushes the elastic ring 6, the flared structure can serve as a guide. At the same time, the outer wall of the elastic ring 6 forms a groove due to the flared structure, which helps to limit the position of the elastic ring 7. Therefore, it is more conducive to the inner side wall of the elastic ring 6 to bulge toward the inside of the elastic ring 6; therefore, the elastic ring 6 is more conducive to playing a flow limiting role, thereby improving the damping effect of the floating support structure and thus improving the stability of the floating support structure when subjected to bumps.

[0109] Reference Figure 14-17 In addition to the aforementioned limiting grooves 19 and flared structure, an elastic protrusion 18 is integrally formed on the inner side of the elastic ring 6, facing inward. This elastic protrusion 18 further reduces the inner diameter of the elastic ring 6 and facilitates the reduction of this inner diameter. Therefore, when the load-bearing portion 1 is carrying a heavy object or at a significant inclination, the space for the hydraulic fluid to flow through the elastic protrusion 18 is further reduced, further reducing the flow rate of the hydraulic fluid and thus providing a better cushioning effect on the load.

[0110] Regarding the third situation of changing the inner diameter of the elastic ring 6, the first drive assembly and the second drive assembly coexist.

[0111] Reference Figure 18 On the basis of providing the third push rod 13 and the fourth push rod 14, combined with the structure of the pushing portion 17, it is possible to adjust the damping size according to the weight of the goods and the tilt angle of the load-bearing portion 1, and to change the damping size according to the weight of the goods themselves and the degree of tilt, while limiting the position of the support portion 2, so that the load-bearing portion 1 is not easily tilted excessively, and the support portion 2 is not easily separated from the telescopic slot 3.

[0112] In this embodiment, the telescopic column and support portion 2 are square-pillar structures, which can also serve as a guide during the telescopic and sliding process. In other embodiments, the telescopic slot 3 and support portion 2 can both be cylindrical structures. The cylindrical structure can further enhance the cushioning effect, especially in the event of turning or shaking during transportation. The seal 20 between the support portion 2 and the telescopic slot 3 can provide a certain damping effect, allowing the load-bearing portion 1 to twist at a small angle relative to the support portion 2, thereby further improving the cushioning effect of the floating support structure.

[0113] The floating support structure of the present embodiment is based on the principle that during cargo transportation, bumps may occur. The support portion 2, which is in contact with the transport equipment, is first subjected to the bumps. Because the hydraulic fluid within the multiple expansion slots 3 is interconnected and the support portion 2 is telescopically connected within the expansion slots 3, when bumps occur, the support portion 2 changes its relative depth within the expansion slots 3, extending and retracting. The hydraulic fluid provides a buffering effect, reducing the impact of bumps on objects placed on the support portion 1. To further achieve this damping effect, an elastic ring 6 is provided in conjunction with an elastic ring 7, along with a pusher assembly. This allows for adjustment of the damping force based on the weight of the cargo and the tilt of the support portion 1, thereby further enhancing the cushioning effect. Alternatively, a pusher 17 can be provided in conjunction with the elastic ring 6 to adjust the damping force based on the weight of the cargo and the tilt of the support portion 1. The physical principle employed is that greater damping dissipates more kinetic energy and slows down the object's movement.

[0114] The embodiment of the present application also discloses a tray.

[0115] Reference Figure 19 and Figure 20 A pallet includes any one of the above-mentioned floating support structure embodiments, wherein the load-bearing portion 1 includes a load-bearing panel 21 in the shape of a square plate and a structural member 22 integrally formed on one side of the load-bearing panel 21; in this embodiment, the number of structural members 22 is set to nine, and the array is distributed on one side of the load-bearing panel 21; the structural member 22 is set to a square column or cylindrical structure, and is perpendicular to the load-bearing panel 21, and the square column is used as an example for illustration in the accompanying drawings. The telescopic slot 3 is provided on the side of the structural member 22 away from the load-bearing panel 21, and the support portion 2 is telescopically connected in the telescopic slot 3. The structure of the pallet is a floating support structure.

[0116] Reference Figure 20 In this embodiment, a channel 4 is provided within the support panel 21 and connects to the multiple expansion slots 3. A steel tube 23 is injection-molded within the support panel 21 and is positioned within and connected to the channel 4. The steel tube 23 is welded together from square or round steel tubes in a "T-shaped" configuration, with through-holes defined at the bottom of the tube 23 corresponding to the locations of the expansion slots 3. The addition of the steel tube 23 enhances the structural strength of the pallet and reduces the difficulty of creating through-holes within the support panel 21, facilitating production.

[0117] Reference Figure 21 Hydraulic liquid is set in the channel 4 of the tray, and the support part 2 is telescopically connected in the telescopic groove 3. There is no elastic ring 6 in the telescopic groove 3. Only the pressure of the liquid is used to realize the basic floating function, thereby achieving a buffering effect.

[0118] Reference Figure 22 The pallet is provided with a pushing assembly structure consisting of a first push rod 9 and a first wedge block 8. An elastic ring 6 and an elastic ring 7 are provided within the mounting groove 5. The pushing assembly can be used to adjust the inner diameter of the elastic ring 6 according to the weight of the cargo. In this embodiment, the central support portion 2 may be provided with no elastic ring 6, or may be provided with an elastic ring 6 with a fixed inner diameter that does not require any variation in the inner diameter.

[0119] Reference Figure 23 The tray is provided with a pushing assembly structure composed of a second push rod 11 and a first wedge block 8. An elastic ring 6 and an elastic ring 7 are provided within the mounting groove 5. The pushing assembly can be used to adjust the inner diameter of the elastic ring 6 according to the degree of inclination of the support panel 21. In this embodiment, the central support portion 2 may be provided without the elastic ring 6, or may be provided with the elastic ring 6 with a fixed inner diameter, but this does not require any variation in the inner diameter.

[0120] Reference Figure 24 The pallet is equipped with a pushing assembly structure composed of a third push rod 13, a fourth push rod 14, and a first wedge block 8. An elastic ring 6 and an elastic ring 7 are disposed within the mounting groove 5. The pushing assembly can be used to adjust the inner diameter of the elastic ring 6 based on the tilt of the load-bearing panel 21 and the weight of the cargo. In this embodiment, the central support portion 2 may be provided with no elastic ring 6, or may be provided with an elastic ring 6 with a fixed inner diameter, but this does not require any variation in the inner diameter.

[0121] Reference Figure 25 The support portion 2 of the pallet is provided with a pushing portion 17. When bumping, the pushing portion 17 squeezes the elastic ring 6, thereby changing the inner diameter of the elastic ring 6. Therefore, the inner diameter of the elastic ring 6 can be changed according to the degree of inclination of the load-bearing panel 21 or the weight of the cargo.

[0122] The implementation principle of a pallet in an embodiment of the present application is as follows: during transportation, when the vehicle is bumped, the support portion 2 at the bottom of the pallet will continuously adjust its height according to the location of the bump, utilizing the floating effect of the hydraulic fluid to achieve a buffering effect. At the same time, a combination of different drive structures is provided, which can adjust the inner diameter of the elastic ring 6 according to the weight of the cargo and the degree of inclination of the load-bearing panel 21, that is, adjust the damping between the support portion 2 and the telescopic slot 3. As a result, the pallet's anti-buffering capacity varies according to the load and the actual usage scenario, thereby better achieving the buffering effect. The physical principle utilized is that the greater the damping, the more kinetic energy of the object is consumed, and the slower the speed of the object's movement.

[0123] The present application discloses a method for manufacturing a pallet, which includes the following steps:

[0124] To form the bearing part 1, place the welded F-shaped steel pipe 23 into the first mold, inject the molten plastic raw material into the first mold, and reserve a reserved opening on the bearing part 1 to communicate with the channel 4; after the bearing part 1 is injection-molded and cooled, open the first mold and take out the bearing part 1.

[0125] The support part 2 is formed by injecting the molten plastic raw material into the second mold; after the support part 2 is cooled after injection molding, the second mold is opened and the support part 2 is taken out.

[0126] Assembly: insert the support part 2 into the telescopic slot 3, and install the cylindrical sealing member 20 between the support part 2 and the telescopic slot 3; after installing the support part 2, pour hydraulic liquid into the reserved opening and seal the reserved opening.

[0127] The structures including the pushing assembly, the elastic ring 6 , the elastic ring 7 , the pushing portion 17 and the spring can be installed to corresponding positions before the support portion 2 is installed into the telescopic slot 3 .

[0128] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A floating support structure, comprising a bearing portion (1) and a supporting portion (2), wherein at least two telescopic grooves (3) are provided on a side of the bearing portion (1) away from the object to be placed, and the supporting portion (2) is sealingly and slidably connected to the telescopic grooves (3) and one end thereof extends out of the telescopic grooves (3); a channel (4) for connecting a plurality of the telescopic grooves (3) is provided inside the bearing portion (1), the channel (4) is located at one end of the plurality of telescopic grooves (3) away from the supporting portion (2), and the telescopic grooves (3) and the channel (4) are both filled with hydraulic fluid; A mounting groove (5) is provided in the telescopic groove (3) at one end of the telescopic groove (3) away from the support portion (2), and an elastic ring (6) is provided in the mounting groove (5); a first driving component for reducing the inner diameter of the elastic ring (6) is provided on the bearing portion (1), and a second driving component for reducing the inner diameter of the elastic ring (6) is provided on the support portion (2).

2. The floating support structure according to claim 1, characterized in that: The first driving assembly comprises an elastic ring (7) with a notch and is arranged on the outside of the elastic ring (6); a first wedge block (8) is fixedly connected to the outside of the elastic ring (7); the outside of the elastic ring (7) abuts against the inner wall of the mounting groove (5) relative to one side of the first wedge block (8); the first wedge block (8) is sealingly and slidably connected to the bearing portion (1); and a pushing assembly for abutting and pushing the first wedge block (8) close to the inner side of the elastic ring (7) is slidably connected to the bearing portion (1).

3. The floating support structure according to claim 2, characterized in that: The pushing assembly comprises a first push rod (9), one end of the first push rod (9) away from the first wedge block (8) protruding from the upper part of the bearing portion (1), and the other end of the first push rod (9) being used to abut against the inclined surface of the first wedge block (8) and to push the first wedge block (8) close to the elastic ring (7); The first push rod (9) is telescopically connected to the bearing portion (1) via a first elastic member (10).

4. The floating support structure according to claim 2, characterized in that: The pushing assembly comprises a second push rod (11), one end of the second push rod (11) away from the first wedge block (8) extends toward the bottom of the support portion (2) and is used to abut against the placement surface; the other end of the second push rod (11) is used to abut against the inclined surface of the first wedge block (8) and to push the first wedge block (8) close to the elastic ring (7); The second push rod (11) is telescopically connected to the bearing portion (1) via a second elastic member (12).

5. The floating support structure according to claim 2, characterized in that: The pushing assembly comprises a third push rod (13) and a fourth push rod (14), wherein one end of the third push rod (13) away from the first wedge block (8) protrudes from the upper part of the bearing portion (1), and the other end of the third push rod (13) is used to abut against the first inclined surface (24) of the first wedge block (8) and to push the first wedge block (8) close to the elastic ring (7); one end of the fourth push rod (14) away from the first wedge block (8) extends toward the bottom of the support portion (2) and is used to abut against the placement surface; the other end of the fourth push rod (14) is used to abut against the second inclined surface (25) of the first wedge block (8) and to push the first wedge block (8) close to the elastic ring (7); The third push rod (13) is telescopically connected to the bearing portion (1) via a third elastic member (15), and the fourth push rod (14) is telescopically connected to the bearing portion (1) via a fourth elastic member (16).

6. The floating support structure according to claim 2, characterized in that: The second driving assembly comprises a pushing portion (17) slidably connected to the mounting groove (5), and the pushing portion (17) is fixedly connected to the supporting portion (2); when the pushing portion (17) approaches the elastic ring (6), it is used to squeeze the elastic ring (6).

7. The floating support structure according to claim 6, characterized in that: An elastic protrusion (18) facing the inside of the elastic ring (6) is provided on the inside of the elastic ring (6); The end of the elastic ring (6) close to the support portion (2) is flared; and / or the end of the elastic ring (6) away from the support portion (2) is flared; A limiting groove (19) is provided on the outer side of the elastic ring (6) at a position corresponding to the elastic ring (7).

8. The floating support structure according to claim 1, characterized in that: A sealing member (20) is provided between the support portion (2) and the telescopic groove (3), and the sealing member (20) is tightly pressed between the inner wall of the telescopic groove (3) and the outer wall of the support portion (2); The support portion (2) is rotatably connected in the telescopic slot (3).

9. A pallet, characterized by: The floating support structure comprises the floating support structure according to any one of claims 1 to 8, wherein the bearing portion (1) comprises a bearing panel (21) and a structural member (22) located on one side of the bearing panel (21); a plurality of telescopic slots (3) are provided and are located on a side of the structural member (22) away from the bearing panel (21); The channel (4) is provided in the bearing panel (21), a steel pipe (23) is injection-molded in the bearing panel (21), and the steel pipe (23) is provided in the channel (4) and communicates with the channel (4).

10. A method for manufacturing a pallet, comprising manufacturing the pallet according to claim 9, characterized in that: The steps include: A bearing portion (1) is formed, the welded steel pipe (23) is placed in a first mold, and molten plastic material is injected into the first mold, wherein a reserved opening communicating with the channel (4) is reserved on the bearing portion (1); A support portion (2) is formed, and molten plastic material is injected into the second mold; Assemble, insert the support part (2) into the telescopic groove (3), install the sealing member (20) between the support part (2) and the telescopic groove (3); after installing the support part (2), inject hydraulic liquid from the reserved opening, and seal the reserved opening.

Images