Tray jack structure with detachable guard plate

Abstract

The utility model relates to the technical field of pallets, and provides a pallet jack structure with a detachable guard plate, the pallet jack structure comprises a pallet body, a guard plate member, a magnetic connection member and a repair member, the two sides of the pallet body are provided with jacks for the insertion of forks of a forklift, and the guard plate member is provided with a magnetic connection member. The protection plate component is detachably mounted in the jack inlet and used for covering the edge of the jack, and the magnetic attraction connecting component is arranged on the contact end face of the protection plate component and the inner wall of the jack; the protective plate component comprises a first protective plate block, a wedging plate and a second protective plate block, the first protective plate block is arranged at one end of the wedging plate, a connecting part is arranged at the other end of the wedging plate, and the second protective plate is detachably connected with the connecting part; the end faces, making contact with the pallet fork, of the first protection plate block, the wedging plate and the second protection plate block are each provided with a built-in cavity, and the repairing components are arranged in the built-in cavities.

Description

Technical Field

[0001] This utility model relates to the field of pallet technology, and in particular to a pallet insertion hole structure with a detachable protective plate. Background Technology

[0002] During logistics handling, forklifts must insert their forks into pallet slots to lift and move the pallet. Currently, most mainstream pallet structures use fixed slot edges, with thickened or bolted guards to prevent wear. However, in frequent operating environments, the slot edges are still damaged by fork impacts, and the deeper structures are easily cracked during forceful insertion, shortening the overall lifespan of the pallet. Replacing worn guards is difficult, usually requiring manual removal of bolts or clips, an operation that can take 15 minutes or more, reducing efficiency and increasing labor costs. Furthermore, traditional guards are made of a single rigid material, and surface damage cannot be repaired, requiring replacement of the entire piece, resulting in high maintenance costs. To improve protective performance and maintenance efficiency, the industry has proposed several improvement solutions. These shortcomings lead to a shortened overall pallet lifespan, reduced safety, and low maintenance efficiency. To improve durability and reduce maintenance costs, the industry has proposed several improvement solutions.

[0003] For example, Chinese patent CN212429605U discloses a high-performance buffer pallet. Its technical solution involves setting a "receiving groove" at the insertion hole location and fixing the buffer pad using an interference fit. When the buffer pad wears out, it can be removed and replaced to reduce the impact of fork insertion. While this solution is an improvement over traditional integral insertion holes, its technical implementation still has the following prominent drawbacks: lack of a removable guard plate—only the inner pad is replaced, leaving the edge of the insertion hole still exposed to the impact environment, which can easily lead to chipping over time; lack of deep protection—the buffer pad is only placed at the entrance, and there are no energy absorption measures at the bottom of the insertion hole, making it easy to crack the bottom structure when the fork is forcefully inserted; limited functionality—the protective element is a rubber pad, which cannot achieve wear resistance or repair, has limited buffering performance, and requires frequent replacement.

[0004] In addition, the existing technology also has the following drawbacks:

[0005] 1. Bolts or clips are used to fix the protective plate, which is cumbersome to disassemble and assemble and is not suitable for high-frequency maintenance scenarios;

[0006] 2. The guard plate is hard and cannot be repaired; once worn, it needs to be replaced entirely, resulting in high costs.

[0007] 3. The socket end lacks a buffer structure, making the tray body vulnerable to concentrated impact;

[0008] 4. Insufficient positioning structure, which is prone to loosening, shifting or even falling off after long-term use.

[0009] This utility model was developed to address the common problems in this field, such as inefficient installation and replacement, insufficient protective functions, lack of deep cushioning, and lack of repair capabilities for protective plates. Utility Model Content

[0010] The purpose of this utility model is to address the shortcomings of current technology by proposing a tray insertion hole structure with a detachable protective plate.

[0011] In order to overcome the shortcomings of the existing technology, the present invention adopts the following technical solution:

[0012] A pallet insertion structure with a removable guard plate is provided. The pallet insertion structure includes a pallet body, a guard plate component, a magnetic connection component, and a repair component. The pallet body has insertion holes on both sides for forklift forks to insert into. The guard plate component is detachably mounted in the insertion hole inlet and is used to cover the edge of the insertion hole. The magnetic connection component is disposed on the contact end face between the guard plate component and the inner wall of the insertion hole.

[0013] The protective plate component includes a first protective plate, a wedge plate, and a second protective plate. The first protective plate is connected to one end of the wedge plate, and the other end of the wedge plate is provided with a connecting part. The second protective plate is detachably connected to the connecting part.

[0014] The first guard plate, the wedge plate, and the second guard plate all have built-in cavities on their contact surfaces with the forks, and the repair component is built into the built-in cavity.

[0015] Optionally, the repair component includes a repair agent distributed in the inner layer of the protective plate, and the repair agent is released when the surfaces of the first protective plate, the wedge plate, and the second protective plate are damaged.

[0016] Optionally, the repair component further includes at least one partition cavity, wherein at least one partition cavity is respectively disposed inside the built-in cavity of the first guard plate, the wedge plate and the second guard plate, and is inclined toward the fork contact end face.

[0017] Optionally, the magnetic connection component includes a magnetic element disposed on the back of the protective plate and a metal insert disposed on the edge of the socket or in the groove.

[0018] Optionally, the contact surfaces of the first guard plate, the second guard plate, and the forks are provided with buffer cavities.

[0019] Optionally, the tray insertion structure further includes a spring-loaded buffer end stop component, which is disposed in the buffer cavity and detachably connected to the first protective plate and the second protective plate.

[0020] Optionally, the spring buffer end stop component includes a stop block, a compression spring, and a fixed base, with one end of the compression spring connected to the stop block and the other end of the compression spring connected to the fixed base.

[0021] Optionally, the inner sides of the first and second protective plates are provided with guide grooves extending axially along the buffer cavity.

[0022] Optionally, a locking block is provided on one side of the fixing base, and the locking block and the guide groove are detachably connected.

[0023] Optionally, the first guard plate, the wedge plate, and the second guard plate are all configured as multi-layer composite structures. The multi-layer composite structure includes an outer wear-resistant layer and an intermediate elastic buffer layer. The outer wear-resistant layer is located on the side of the guard plate component close to the forklift forks, and the intermediate elastic buffer layer is located inside the outer wear-resistant layer and faces the pallet body.

[0024] The outer wear-resistant layer and the middle elastic buffer layer are fixedly connected by a composite process.

[0025] The beneficial effects achieved by this utility model are:

[0026] 1. The cooperation between the protective plate component and the magnetic connection component enables the protective plate to be quickly installed and removed, ensuring that the entire device can be replaced without tools when the protective plate is damaged, reducing maintenance time and improving efficiency.

[0027] 2. By using magnetic connection components to work with repair components, the protective plate assembly can be quickly disassembled and replaced when the repair agent is exhausted or severely damaged, ensuring that the entire device has modular maintenance characteristics, shortening the maintenance cycle and reducing maintenance costs;

[0028] 3. The cooperation between the protective plate components and the magnetic connection components enables the protective plate to be quickly installed and removed, ensuring that the entire device can be replaced without tools when the protective plate is damaged, reducing maintenance time and improving efficiency.

[0029] 4. By combining the magnetic connection component with the spring buffer end stop component, the buffer end stop is hidden behind the guard plate and can be quickly replaced by disassembling the guard plate, ensuring the stability of the entire device structure, convenient maintenance, and extending the service life of the buffer mechanism.

[0030] 5. Through the cooperation of the guard plate component and the spring buffer end stop component, the guard plate can absorb the initial frictional impact, and the spring buffer end stop can absorb the deep insertion force impact, ensuring that the entire device reduces the impact force when the forks are inserted and protects the pallet from hard damage.

[0031] 6. By combining the repair components with the spring buffer end stop components, the device can repair minor damage to the guard plate after absorbing the impact, ensuring the integrity of the entire device under high-intensity operation and extending the overall life of the pallet. Attached Figure Description

[0032] The present invention can be further understood from the following description taken in conjunction with the accompanying drawings. The components in the drawings are not necessarily drawn to scale, but rather the emphasis is on illustrating the principles of the embodiments. In different views, the same reference numerals designate the same parts.

[0033] Figure 1 This is a front view schematic diagram of the tray body of this utility model.

[0034] Figure 2 This is a top view of the forks and pallet body of this utility model.

[0035] Figure 3 This is a side right view schematic diagram of the first protective plate, the wedge plate, and the second protective plate of this utility model in their assembled state.

[0036] Figure 4 This is a partial cross-sectional view of the first protective plate, the wedge plate, and the second protective plate of this utility model in their assembled state.

[0037] Figure 5 for Figure 4 Enlarged schematic diagram of section B.

[0038] Figure 6 This is a partial cross-sectional view of the wedge plate and the second protective plate of this utility model.

[0039] Figure 7 for Figure 6 Enlarged schematic diagram of section C.

[0040] Figure 8 for Figure 6 Enlarged schematic diagram of section D in the middle.

[0041] Figure 9 This is a schematic diagram of the repair agent and the partition cavity in the first protective plate of this utility model.

[0042] Explanation of reference numerals in the attached drawings: 1. First guard plate; 2. Wedge plate; 3. Second guard plate; 4. Stop block; 5. Insertion hole; 6. Metal insert; 7. Internal thread; 8. Pallet body; 9. External thread; 10. Limiting rod; 11. Compression spring; 12. Buffer cavity; 13. Limiting hole; 14. Fork; 15. Magnetic element; 16. Separating cavity; 17. Repairing agent; 18. Wear-resistant layer; 19. Elastic buffer layer. Detailed Implementation

[0043] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can understand the advantages and effects of this utility model from the content disclosed in this specification. This utility model can be implemented or applied through other different specific embodiments, and various details in this specification can also be modified and changed based on different viewpoints and applications without departing from the spirit of this utility model. Furthermore, the accompanying drawings of this utility model are for simple illustrative purposes only and are not depictions of actual dimensions, as stated in advance. The following embodiments will further describe the relevant technical content of this utility model in detail, but the disclosed content is not intended to limit the scope of protection of this utility model.

[0044] according to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 9 As shown, this embodiment provides a pallet insertion structure with a detachable guard plate. The pallet insertion structure includes a pallet body, a guard plate component, a magnetic connection component, and a repair component. The pallet body has insertion holes 5 on both sides for forklift forks 14 to insert into. The guard plate component is detachably mounted in the inlet of the insertion hole 5 and is used to cover the edge of the insertion hole 5. The magnetic connection component is disposed on the contact end face between the guard plate component and the inner wall of the insertion hole 5.

[0045] The protective plate component includes a first protective plate 1, a wedge plate 2, and a second protective plate 3. The first protective plate 1 is disposed at one end of the wedge plate 2 and connected to one end of the wedge plate 2. The other end of the wedge plate 2 is provided with a connecting part. The second protective plate is detachably connected to the connecting part.

[0046] In this embodiment, as Figure 3 As shown, the first protective plate 1 and the second protective plate 3 are disposed on both sides of the wedge plate 2. The first protective plate 1 is disposed at one end of the wedge plate 2 and connected to one end of the wedge plate 2. Meanwhile, the other end of the wedge plate 2 is provided with an external thread 9 to form a connecting part. The second protective plate is provided with a connecting hole on the side facing the wedge plate 2. The inner wall of the connecting hole is provided with an internal thread 7, and the internal thread 7 and the external thread 9 are adapted to each other.

[0047] Meanwhile, when the second protective plate 3 needs to be installed, align the connecting hole with the external thread 9 of the connecting part of the wedge plate 2, and rotate the second protective plate 3 in the spiral direction so that the internal thread 7 gradually engages with the external thread 9 until the second protective plate 3 is fastened to the end of the wedge plate 2, thereby achieving a detachable connection with the wedge plate 2.

[0048] The second protective plate 3 can be quickly installed and removed without additional tools, facilitating on-site replacement and maintenance, reducing repair time, and ensuring the overall structural strength and impact resistance of the protective plate.

[0049] The first protective plate 1, the wedge plate 2, and the second protective plate 3 have an n-shaped structure, and the hollow insertion hole 5 formed is for the forklift forks 14 to be inserted.

[0050] The first guard plate 1, the wedge plate 2, and the second guard plate 3 all have built-in cavities on their contact surfaces with the fork 14, and the repair component is built into the built-in cavity.

[0051] Optional,

[0052] Optionally, the first guard plate 1, the wedge plate 2, and the second guard plate 3 are all configured as multi-layer composite structures. The multi-layer composite structure includes an outer wear-resistant layer 18 and an intermediate elastic buffer layer 19. The outer wear-resistant layer 18 is located on the side of the guard plate member close to the forklift fork 14, and the intermediate elastic buffer layer 19 is located inside the outer wear-resistant layer 18 and faces the pallet body.

[0053] The outer wear-resistant layer 18 and the middle elastic buffer layer 19 are fixedly connected by a composite process. In this embodiment, the composite process may include, but is not limited to, the following methods:

[0054] Hot pressing molding process: After the wear-resistant layer 18 material and the buffer layer material are stacked together, they are placed in a mold. Pressure is applied and heated to 140℃-180℃ and held for 35 minutes to make the interface of the two layers melt and bond together. Then, they are cooled and shaped to form an integral structure.

[0055] Injection molding coating process: First, the buffer layer is formed, and then the molten wear-resistant layer 18 material is coated on the outer surface of the buffer layer through injection molding equipment. After cooling and solidification, the two layers are integrated, with high bonding strength, which is suitable for mass production.

[0056] Adhesive bonding process: Structural adhesive is evenly applied to the interface between the wear-resistant layer 18 and the buffer layer. The adhesive layer thickness is 0.3mm to 1mm. A strong bond is formed by hot pressing or room temperature curing, which is suitable for small-batch manufacturing or on-site maintenance.

[0057] In a preferred embodiment, to further enhance the bonding strength of the composite interface, a glass fiber mesh can be embedded in the buffer layer, or the bonding surface of the wear-resistant layer 18 can be sandblasted or plasma-activated to improve the bonding strength and prevent delamination. The above composite process ensures that the protective plate structure maintains overall durability under high-frequency friction and impact conditions.

[0058] The repair inner layer is located inside the intermediate elastic buffer layer 19, and the repair component is disposed in the repair inner layer for self-repair by releasing the repair agent 17 when the surface of the protective plate is damaged. When the first protective plate 1, the wedge plate 2, and the second protective plate 3 are cracked or damaged, the repair component will overflow and release the repair agent 17, which will then permeate the cracked or damaged area.

[0059] Optionally, the repair component includes a repair agent 17, which is distributed in the inner layer of the protective plate and is released when the surfaces of the first protective plate 1, the wedge plate 2, and the second protective plate 3 are damaged.

[0060] The repair agent 17 includes, but is not limited to, the following: epoxy resin-based repair agent 17, polyurethane-based repair agent 17, and acrylic ester-based repair agent 17. If the repair agent 17 is primarily epoxy resin, a compatible curing agent can be pre-placed in the partition cavity 16, or a curing reaction can be initiated by external moisture. When cracks appear in the protective plate, the repair agent 17 flows to the crack and comes into contact with the curing agent to undergo cross-linking polymerization, forming a high-strength cured product. This restores the overall strength and wear resistance of the protective plate and prevents crack propagation.

[0061] Meanwhile, if the repair agent 17 is a polyurethane prepolymer or its solution form, when a crack appears, the repair agent 17 flows to the damaged area and absorbs air or moisture to undergo a chemical reaction, curing to form a tough elastomer, effectively filling the crack and providing buffering performance, suitable for preventing further damage to the protective plate buffer layer.

[0062] In addition, if the repair agent 17 is a combination of acrylate monomers and initiators, when the repair agent 17 flows into the crack and comes into contact with air or is exposed to external light, it triggers a free radical polymerization reaction, quickly solidifies to form a tough repair layer, achieves crack closure and surface strength restoration, and is suitable for scenarios requiring rapid repair.

[0063] like Figure 7 , Figure 8 ,as well as Figure 9 As shown, the repair component further includes at least one partition cavity 16. The at least one partition cavity 16 is respectively disposed inside the built-in cavity of the first guard plate 1, the wedge plate 2 and the second guard plate 3, and is inclined toward the contact end face of the fork 14. The partition cavity 16 stores a fluid repair agent 17. When the guard plate cracks during use, the repair agent 17 flows along the inclined direction of the partition cavity 16 to the crack, and self-repair is achieved by the release and solidification of the repair agent 17.

[0064] All of the above-mentioned repair agents 17 types are supplied in a flow manner through the inclined drainage of the partition cavity 16. They do not rely on stress triggering, but utilize the crack leakage path and gravity guidance principle to ensure that the repair agent 17 can actively flow to the crack area and complete the curing repair after the protective plate is damaged.

[0065] The combination of the protective plate components and the repair components enables the protective plate to automatically fill and solidify when cracks or minor damage occur, ensuring that the entire device has a self-healing function and extending the service life of the protective plate and the tray.

[0066] Optionally, the magnetic connection component includes a magnetic element 15 disposed on the back of the protective plate and a metal insert 6 disposed on the edge or in the groove of the socket 5.

[0067] In this embodiment, the magnetic connection component includes a magnetic element 15 disposed on the back of the protective plate component, and a metal insert 6 disposed on the edge or in the groove of the insertion hole 5. The metal insert 6 is pre-installed in the edge of the insertion hole 5 of the tray body or in the tray rib plate, and is fixed by injection molding or die casting process, making it part of the tray structure. Therefore, it is not only used to cooperate with the magnetic element 15 for adsorption, but also to improve the overall load-bearing capacity and impact resistance of the edge of the tray insertion hole 5.

[0068] The magnetic element 15 is preferably a high-strength neodymium iron boron permanent magnet, with nickel plating for corrosion protection to prevent rusting and affecting adsorption performance in humid storage environments. The magnetic element 15 is fixed in the mounting groove on the back of the protective plate by molding or adhesive bonding, and is respectively arranged at the corresponding positions of the first protective plate 1, the wedge plate 2, and the second protective plate 3 to ensure that the protective plate can be precisely aligned with the metal insert 6 and achieve stable adsorption during installation.

[0069] To ensure the stability of the magnetic connection component under repeated insertion and removal of the forklift forks 14 and vibration conditions, the attraction force between the magnetic connection component and the metal insert 6 should be designed to meet the following requirements: when the guard plate assembly is subjected to the insertion force and inertial impact force of the fork 14, the magnetic attraction force should still provide a holding force of at least 50N to 80N to prevent the guard plate from falling off or shifting. The attraction force of the magnetic element 15 is achieved by reasonably selecting the specifications of the magnetic element 15 and the contact area with the metal insert 6.

[0070] The magnetic connection component, in conjunction with the repair component, allows the protective plate assembly to be quickly disassembled and replaced when the repair agent 17 is depleted or severely damaged, ensuring that the entire device has modular maintenance characteristics, shortening the maintenance cycle and reducing maintenance costs.

[0071] The magnetic connection structure enables quick disassembly and installation of the protective plate components, tool-free replacement, significantly improving maintenance efficiency. Furthermore, the metal insert 6 enhances the structural strength of the edges of the tray insertion holes 5, extending the overall service life of the tray.

[0072] In this embodiment, the cooperation between the protective plate component and the magnetic connection component enables the protective plate to be quickly installed and removed, ensuring that the entire device can be replaced without tools when the protective plate is damaged, reducing maintenance time and improving efficiency.

[0073] like Figure 6 As shown, optionally, the contact surfaces of the first guard plate 1, the second guard plate 3 and the fork 14 are provided with buffer cavities 12.

[0074] Optionally, the tray insertion hole structure further includes a spring buffer end stop component, which is disposed in the buffer cavity 12 and respectively disposed on the first protective plate 1 and the second protective plate 3.

[0075] Optionally, the spring buffer end stop component includes a stop block 4 and a compression spring 11, one end of the compression spring 11 is connected to the stop block 4, and the other end of the compression spring 11 is connected to the inner wall of the buffer cavity 12.

[0076] One side of the stop block 4 is hinged to the inner wall of the buffer cavity 12 to form a hinge portion, and the other side of the stop block 4 extends toward the side away from the buffer cavity 12 to form a contact portion.

[0077] Optionally, the inner walls of the buffer cavities 12 of the first protective plate 1 and the second protective plate 3 are provided with limiting holes 13.

[0078] Optionally, the spring buffer end stop component further includes a limiting rod 10, one end of which is connected to the side end face of the stop block 4 near the limiting hole 13, and the other end of which is wedged into the limiting hole 13.

[0079] In a preferred embodiment, the contact portion of the stop 4 extends outward, so that it first contacts the end face of the fork 14 when the fork 14 is inserted deep into the pallet insertion hole 5. As the fork 14 continues to be inserted and pushes the stop 4, the stop 4 rotates around the hinge, and the compression spring 11 deforms to absorb the impact energy, thereby effectively buffering the hard collision between the fork 14 and the pallet body and avoiding damage to the inner wall of the pallet insertion hole 5.

[0080] To prevent the stop block 4 from coming loose during repeated movements, a limiting rod 10 is connected to the end face of the stop block 4 near the limiting hole 13. The limiting rod 10 is arranged along the inner wall of the buffer cavity 12, and its other end is wedged into the limiting hole 13 provided in the inner wall of the buffer cavity 12, so as to realize the positioning and locking of the stop block 4 in the hinge axis and prevent the stop block 4 from shifting or falling off due to vibration or high-frequency impact.

[0081] In addition, one end of the limiting rod 10 is connected to the side face of the stop 4 near the limiting hole 13, and the other end is wedged into the limiting hole 13 in the inner wall of the buffer cavity 12 to position the stop 4 and prevent it from loosening or falling off during use. When the fork 14 is inserted deep into the pallet insertion hole 5 and contacts the stop 4, the stop 4 rotates around the hinge, driving the compression spring 11 to compress and absorb the impact energy, thereby effectively mitigating the impact of the insertion force and preventing direct damage to the inner wall of the pallet insertion hole 5.

[0082] Meanwhile, the magnetic connection component and the spring buffer end stop component work together to hide the buffer end stop behind the guard plate and can be quickly replaced by disassembling the guard plate, ensuring the stability of the entire device structure, convenient maintenance, and extending the service life of the buffer mechanism.

[0083] The spring-loaded end stop component can improve buffering performance and impact resistance while maintaining detachability, and ensure the reliability of the structure under high-frequency use conditions.

[0084] In addition, in this embodiment, the cooperation between the guard plate component and the spring buffer end stop component enables the guard plate to absorb the initial frictional impact and the spring buffer end stop to absorb the deep insertion force impact, ensuring that the entire device reduces the impact force when the fork 14 is inserted and protects the pallet from hard damage.

[0085] Meanwhile, through the cooperation of the repair components and the spring buffer end stop components, the device can repair minor damage to the guard plate after absorbing the impact, ensuring that the entire device maintains its integrity under high-intensity operation and extending the overall life of the pallet.

[0086] The above-disclosed content is only a preferred and feasible embodiment of the present utility model, and is not intended to limit the protection scope of the present utility model. Therefore, all equivalent technical changes made based on the contents of the present utility model specification and drawings are included within the protection scope of the present utility model. Furthermore, the elements therein can be updated as technology develops.

Claims

1. A tray jack structure with detachable guard, said tray jack structure comprising a tray body, characterized by, The pallet insertion structure also includes a protective plate component, a magnetic connection component, and a repair component. The pallet body has insertion holes on both sides for forklift forks to insert into. The protective plate component is detachably mounted in the insertion hole inlet and is used to cover the edge of the insertion hole. The magnetic connection component is disposed on the contact end face between the protective plate component and the inner wall of the insertion hole. The protective plate component includes a first protective plate, a wedge plate, and a second protective plate. The first protective plate is connected to one end of the wedge plate, and the other end of the wedge plate is provided with a connecting part. The second protective plate is detachably connected to the connecting part. The first guard plate, the wedge plate, and the second guard plate all have built-in cavities on their contact surfaces with the forks, and the repair component is built into the built-in cavity.

2. The tray jack structure with detachable shields according to claim 1, wherein, The repair component contains a repair agent distributed in the inner layer of the protective plate, and the repair agent is released when the surfaces of the first protective plate, the wedge plate, and the second protective plate are damaged.

3. The tray jack structure with detachable shields according to claim 2, wherein, The repair component further includes at least one partition cavity, which is respectively disposed inside the built-in cavity of the first guard plate, the wedge plate and the second guard plate, and is inclined toward the fork contact end face.

4. The tray jack structure with detachable shields according to claim 3, wherein, The magnetic connection component includes a magnetic element disposed on the back of the protective plate and a metal insert disposed on the edge of the socket or in the groove.

5. The tray-jack structure with detachable guards according to claim 3 or 4, characterized in that, The tray has a buffer cavity on the insertion contact end face.

6. The tray-jack structure with detachable guards according to claim 5, wherein, The tray insertion structure also includes a spring buffer end stop component, which is disposed in the buffer cavity and is detachably connected to the first protective plate and the second protective plate.

7. The tray-jack structure with detachable guards according to claim 6, wherein, The spring buffer end stop component includes a stop block, a compression spring, and a fixed base. One end of the compression spring is connected to the stop block, and the other end of the compression spring is connected to the fixed base.

8. The tray-jack structure with detachable guards according to claim 7, wherein, Limiting holes are provided on the inner walls of the buffer cavities of the first protective plate and the second protective plate.

9. The tray insertion hole structure with a removable protective plate according to claim 8, characterized in that, The spring buffer end stop component also includes a limiting rod, one end of which is connected to the side face of the stop block near the limiting hole, and the other end of which is wedged into the limiting hole.

10. The tray-jack structure with detachable guards according to claim 9, wherein, The first guard plate, the wedge plate, and the second guard plate are all configured as multi-layer composite structures. The multi-layer composite structure includes an outer wear-resistant layer and an intermediate elastic buffer layer. The outer wear-resistant layer is located on the side of the guard plate component close to the forklift forks, and the intermediate elastic buffer layer is located inside the outer wear-resistant layer and facing the pallet body. The outer wear-resistant layer and the middle elastic buffer layer are fixedly connected by a composite process.

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