Composite material logistics tray with embedded reinforcing ribs

Abstract

The utility model discloses an embedded reinforcing rib type composite material logistics tray which comprises a tray body and a plurality of strip-shaped plates, the tray body comprises a top plate, a plurality of columns and rows of supporting blocks are transversely arranged at the bottom of the top plate, longitudinal ribs A and transverse ribs A are arranged at the positions, outside the supporting blocks, of the bottom of the top plate, the strip-shaped plates comprise bottom plates, and a plurality of connecting grooves are formed in the tops of the bottom plates. Longitudinal ribs B and transverse ribs B are arranged at the positions, outside the connecting grooves, of the top of the bottom plate, a reinforcing rib is embedded in one longitudinal rib A to form a main longitudinal rib A, or a reinforcing rib is embedded in one transverse rib A to form a main transverse rib A, and a reinforcing rib is embedded in one longitudinal rib B to form a main longitudinal rib B. According to the structure, the reinforcing ribs are embedded and fixed to form the main longitudinal ribs A, the main transverse ribs and the main longitudinal ribs B, so that the supporting performance and the bearing performance of the logistics tray are effectively improved, production procedures are reduced, the production efficiency is improved, and the production cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of a compression-molded pallet, in particular to a composite material logistics pallet with embedded reinforcing ribs. Background Art

[0002] Pallets are widely used across various industries. Existing pallets are primarily made of wood or plastic. From a recycling perspective, plastic pallets are undoubtedly more recyclable. Waste plastic pallets can be recycled by recycling scrap and other processing, then heating them into a liquid form and reproducing them as pallets. However, ordinary plastic pallets have limited load-bearing capacity. To increase this capacity, reinforcing ribs are incorporated into plastic pallets, creating plastic-steel hybrid pallets.

[0003] Existing plastic-steel pallets can be divided into two types based on their production processes. One method involves first producing the plastic pallet structure, then inserting and securing the reinforcing ribs into the corresponding fixing slots or holes in the plastic pallet for the ribs. However, the drawback of this method is that the ribs may detach and fall out of their corresponding positions after the pallet has been used for a period of time. Furthermore, the additional process of assembling and securing the ribs to the corresponding pallet components is required, resulting in low production efficiency and requiring additional labor costs. The other method involves directly placing the ribs in the plastic production mold at the corresponding positions for the rib placement before the plastic pallet structure is produced. The plastic pallet with the ribs is then molded in one go using the plastic production mold. This method has fewer steps, higher production efficiency, and prevents the ribs from being dragged away from the plastic pallet during use. However, due to the different shrinkage rates of the plastic and the ribs during cooling, the resulting plastic pallet with the ribs may warp and deform after cooling, cracking and breaking in the plastic parts. Furthermore, deformation of the steel bars during subsequent use cannot be detected, posing a safety hazard.

[0004] In order to solve the above problems at the same time, the applicant has further improved the structure of the existing logistics pallet that is produced in one go by first fixing the reinforcing ribs to the mold, so as to solve the above technical problems. Utility Model Content

[0005] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a composite material logistics pallet with embedded reinforcing ribs, which effectively improves the supporting performance and load-bearing performance of the logistics pallet by respectively forming main longitudinal ribs A, main transverse ribs and main longitudinal ribs B after embedding and fixing the reinforcing ribs, and the weight increase of the pallet is relatively limited. Moreover, the positioning of the reinforcing ribs can be achieved directly by automated equipment in the molding process, thereby completing the molding directly. There is no need to manually connect and fix the reinforcing ribs to the pallet components after the molding, thereby reducing the production process, improving production efficiency and reducing production costs.

[0006] The technical solution adopted by this utility model is:

[0007] A composite logistics pallet with embedded reinforcing ribs comprises a pallet body and a plurality of strip plates arranged in parallel at the bottom of the pallet body, the pallet body comprising a top plate, the bottom of the top plate being provided with a plurality of columns and a plurality of rows of support blocks being arranged transversely, the bottom of the top plate and the area outside the support blocks being evenly provided with longitudinal ribs A and transverse ribs A arranged in an alternating manner, the strip plates comprising a bottom plate, the top of the bottom plate being provided with a plurality of connecting grooves matching the support blocks at equal intervals along the extension direction of the strip plates, the top of the bottom plate and the area outside the connecting grooves being evenly provided with longitudinal ribs B and transverse ribs B arranged in an alternating manner, one of the longitudinal ribs A between two adjacent columns of support blocks being embedded with and fixed with reinforcing ribs to form the main longitudinal ribs A or one of the transverse ribs A between two adjacent rows of support blocks being embedded with and fixed with reinforcing ribs to form the main transverse ribs A, and one of the longitudinal ribs B located in the middle of the bottom plate being embedded with and fixed with reinforcing ribs to form the main longitudinal ribs B.

[0008] A further improvement of the present invention is that the bottom edges of the two opposite side walls of the main longitudinal reinforcement A or the main transverse reinforcement A are respectively provided with multiple groups of grooves A at equal intervals along the length extension direction thereof, and the grooves A extend downward to pass through the bottom of the main longitudinal reinforcement A or the main transverse reinforcement A, and the top edges of the two opposite side walls of the main longitudinal reinforcement B are respectively provided with multiple groups of grooves B at equal intervals along the length extension direction thereof, and the grooves B extend upward to pass through the top of the main longitudinal reinforcement B.

[0009] A further improvement of the present invention is that the groove depth and the groove width of the groove A gradually increase from top to bottom, and the groove depth and the groove width of the groove B gradually increase from bottom to top.

[0010] A further improvement of the present invention is that a connecting hole is provided at the top of the main longitudinal rib B in the connecting groove at a position corresponding to the groove B, which connects the corresponding grooves B on both sides, and the bottom of the connecting hole extends downward to the top of the reinforcing rib.

[0011] A further improvement of the present invention is that the longitudinal ribs B respectively pass through the connecting grooves located in the middle of the strip plates, and both ends of the longitudinal ribs B extend to extend into the connecting grooves closest to the ends of the strip plates.

[0012] A further improvement of the present invention is that both ends of the reinforcing ribs of the main longitudinal ribs B extend into the connecting grooves closest to the ends of the strip plates.

[0013] A further improvement of the present invention is that reinforcing convex plates are symmetrically provided on the bottom edges of the two side walls of the main longitudinal ribs B, at the positions connected to the transverse ribs B and at the end positions.

[0014] A further improvement of the present invention is that the reinforcing ribs are respectively embedded and fixed in the embedding grooves provided in the main longitudinal ribs B and the main longitudinal ribs A or the main transverse ribs A.

[0015] A further improvement of the present invention is that a plurality of through holes penetrating two opposite side walls of the reinforcing rib are provided at equal intervals in the middle of the side wall of the reinforcing rib along the length direction of the reinforcing rib, and the through holes are filled with core rods fixed to the two opposite side walls of the embedding groove.

[0016] A further improvement of the present invention is that the edge of the groove opening on the inner side of the groove wall of the connecting groove is provided with a step groove matching the bottom edge of the outer side wall of the support block.

[0017] The beneficial effects of the present invention are:

[0018] First, the embedded reinforcing rib-type composite material logistics pallet of the present invention effectively improves the supporting performance and load-bearing performance of the logistics pallet by forming the main longitudinal ribs A, main transverse ribs and main longitudinal ribs B respectively after the reinforcing ribs are embedded and fixed, and the weight increase of the pallet is relatively limited. Moreover, the positioning of the reinforcing ribs can be achieved directly through automated equipment in the molding process, thereby completing the molding directly. There is no need to manually connect and fix the reinforcing ribs to the pallet components after molding, which reduces the production process, improves production efficiency, and reduces production costs.

[0019] Second, the embedded reinforcing rib composite material logistics pallet of the present invention forms a stress release groove at the bottom edge of the main longitudinal rib A or the bottom edge of the main transverse rib through the action of the groove A, thereby avoiding the inner wall of the connecting groove from being separated from the reinforcing rib or even causing cracking and damage to the plastic material due to inconsistent stress properties between the reinforcing rib and the plastic material covering the surface of the main longitudinal rib A or the main transverse rib A; and forms a stress release groove at the top edge of the main longitudinal rib B through the action of the groove B, thereby avoiding the inner wall of the connecting groove from being separated from the reinforcing rib or even causing cracking and damage to the plastic material due to inconsistent stress properties between the reinforcing rib and the plastic material covering the surface of the main longitudinal rib A or the main transverse rib A.

[0020] Third, the composite material logistics pallet with embedded reinforcing ribs of the present invention is more convenient for releasing stress due to the special groove structure of grooves A and B.

[0021] Fourth, the composite material logistics pallet with embedded reinforcing ribs of the present invention connects the corresponding grooves B through the connecting holes provided at the top of the main longitudinal ribs B located in the connecting grooves, exposing the top surfaces of the reinforcing ribs. This allows the inclination of the top surfaces of the reinforcing ribs at the connecting holes to be measured by a detection device after the logistics pallet has been used for a certain period of time, thereby determining the amount of bending deformation. If the bending deformation of the reinforcing ribs detected exceeds a specified value, it indicates that the reinforcing ribs of the strip plate have become fatigued and can no longer be used, requiring replacement with a new strip plate. If the bending deformation does not exceed the specified value, it indicates that the strip plate can still be used. In addition, the connecting holes are located in the connecting grooves. During normal use, the connecting grooves are connected to the supporting blocks in a matching manner, thereby isolating the connecting grooves from the outside world, thereby minimizing contact between the reinforcing ribs at the connecting holes and the outside world, and delaying oxidation of the reinforcing ribs.

[0022] Fifth, the composite material logistics pallet with embedded reinforcing ribs of the present invention not only improves the strength of the main longitudinal ribs B themselves, but also improves the connection strength between the main longitudinal ribs B and the bottom plate and the transverse ribs B respectively, by strengthening the convex plates.

[0023] Sixth, the embedded reinforcing rib-type composite material logistics pallet of the present invention can form a core rod after molding and cooling through the through holes provided by the reinforcing ribs. The action of the core rod can make the reinforcing ribs and the embedded grooves completely fixedly connected, thereby improving the connection strength of the reinforcing ribs with the main longitudinal ribs A, main transverse ribs A and main longitudinal ribs B respectively, ensuring that the reinforcing ribs and the main longitudinal ribs A, main transverse ribs A and main longitudinal ribs B are subjected to stress together during the product's stress process.

[0024] Seventh, the embedded reinforcing rib composite material logistics pallet of the present invention can also release the stress of the reinforcing rib itself through the through holes provided in the reinforcing rib, thereby preventing the reinforcing rib itself from being deformed or even broken due to long-term stress, thereby extending the service life of the reinforcing rib and thus extending the service life of the logistics pallet.

[0025] Eighth, the embedded reinforcing rib composite material logistics pallet of the present invention facilitates the support blocks to be conveniently and accurately spliced ​​and fixed with the connecting grooves through the setting of the step slots. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is an exploded perspective diagram of this application.

[0027] Figure 2 This is a three-dimensional schematic diagram of the tray body of the present application from a bottom-up perspective.

[0028] Figure 3 This is a three-dimensional schematic diagram of the strip plate of the present application from a top view.

[0029] Figure 4 Schematic diagram of the top view of the bottom strip plate.

[0030] Figure 5 for Figure 4 Enlarged cross-sectional view at the AA position in the middle.

[0031] Figure 6 for Figure 4 Enlarged cross-sectional view at the middle BB position.

[0032] Figure 7 for Figure 4 Schematic cross-sectional view at the center CC position. DETAILED DESCRIPTION

[0033] Combine Figures 1 to 7 It can be seen that the composite logistics pallet with embedded reinforcing ribs includes a pallet body 1 and a plurality of strip plates 2 arranged parallel to the bottom of the pallet body 1, the pallet body 1 includes a top plate 3, the bottom of the top plate 3 is provided with multiple columns and multiple rows of support blocks 4 are arranged horizontally, the bottom of the top plate 3 and the area outside the support blocks 4 are evenly provided with longitudinal ribs A8 and transverse ribs A9 arranged in an interlaced manner, the strip plates 2 include a bottom plate 5, the top of the bottom plate 5 is provided with multiple connecting grooves 6 matching the support blocks 4 at equal intervals along the extension direction of the strip plates 2, the top of the bottom plate 5 and the area outside the connecting grooves 6 are evenly provided with longitudinal ribs B13 and transverse ribs B14 arranged in an interlaced manner, one of the longitudinal ribs A8 located between two adjacent columns of support blocks 4 is embedded with a reinforcing rib 15 to form a main longitudinal rib A10, or one of the transverse ribs A9 located between two adjacent rows of support blocks 4 is embedded with a reinforcing rib 15 to form a main transverse rib A11, and one of the longitudinal ribs B13 located in the middle of the bottom plate 5 is embedded with a reinforcing rib 15 to form a main longitudinal rib B.

[0034] By embedding and fixing the reinforcing ribs, the main longitudinal ribs A10, main transverse ribs 11 and main longitudinal ribs B are formed respectively, thereby effectively improving the support performance and load-bearing performance of the logistics pallet, and the weight increase of the pallet is relatively limited. Moreover, the positioning of the reinforcing ribs can be achieved directly through automated equipment in the molding process, thereby completing the molding directly. There is no need to manually connect and fix the reinforcing ribs to the pallet components after molding, which reduces the production process, improves production efficiency and reduces production costs.

[0035] The bottom edges of the two opposite side walls of the main longitudinal reinforcement A10 or the main transverse reinforcement A11 are respectively provided with multiple groups of grooves A12 at equal intervals along the length extension direction thereof, and the grooves A12 extend downward to pass through the bottom of the main longitudinal reinforcement A10 or the main transverse reinforcement A11. The top edges of the two opposite side walls of the main longitudinal reinforcement B are respectively provided with multiple groups of grooves B17 at equal intervals along the length extension direction thereof, and the grooves B17 extend upward to pass through the top of the main longitudinal reinforcement B.

[0036] Through the action of the groove A12, a stress relief groove is formed at the bottom edge of the main longitudinal rib A10 or the bottom edge of the main transverse rib 11, thereby preventing the inner wall of the connecting groove 6 from being separated from the reinforcing rib 15 or even causing cracking and damage to the plastic material due to inconsistent stress properties between the reinforcing rib 15 and the plastic material covering the surface of the main longitudinal rib A10 or the main transverse rib A11; through the action of the groove B17, a stress relief groove is formed at the top edge of the main longitudinal rib B, thereby preventing the inner wall of the connecting groove 6 from being separated from the reinforcing rib 15 or even causing cracking and damage to the plastic material due to inconsistent stress properties between the reinforcing rib 15 and the plastic material covering the surface of the main longitudinal rib A10 or the main transverse rib A11.

[0037] The groove depth and groove width of the groove A12 gradually increase from top to bottom, and the groove depth and groove width of the groove B17 gradually increase from bottom to top.

[0038] The special groove structure of groove A12 and groove B17 makes it easier to release stress.

[0039] A connecting hole 18 is provided at the top of the main longitudinal rib B in the connecting groove 6 , corresponding to the groove B17 , for connecting the corresponding grooves B17 on both sides. The bottom of the connecting hole 18 extends downward to the top of the reinforcing rib 15 .

[0040] The corresponding groove B17 is connected through the connecting hole 18 provided at the top of the main longitudinal rib B in the connecting groove 6, and the top surface of the reinforcing rib 15 is exposed. Therefore, after the logistics pallet has been used for a certain period of time, the inclination of the top surface of the reinforcing rib 15 at the connecting hole 18 can be measured by the detection device, and the bending deformation can be determined. If the bending deformation of the reinforcing rib 15 detected exceeds the specified value, it indicates that the reinforcing rib 15 of the strip plate 2 has become fatigued and can no longer be used, and a new strip plate 2 needs to be replaced; if it does not exceed the specified value, it indicates that the strip plate 2 can still be used. In addition, the connecting hole 18 is located in the connecting groove 6. During normal use, the connecting groove 6 is matched with the support block 4 to isolate the connecting groove 6 from the outside world, thereby minimizing contact between the reinforcing rib 15 at the connecting hole 18 and the outside world, delaying the oxidation of the reinforcing rib 15.

[0041] The longitudinal ribs B13 pass through the connecting grooves 6 located in the middle of the strip plate 2 respectively, and both ends of the longitudinal ribs B13 extend into the connecting grooves 6 closest to the ends of the strip plate 2.

[0042] Both ends of the reinforcing ribs 15 of the main longitudinal ribs B extend into the connecting grooves 6 closest to the ends of the strip plates 2 .

[0043] Reinforcement convex plates 19 are symmetrically provided on the bottom edges of the two side walls of the main longitudinal ribs B, at the positions connected to the transverse ribs B14 and at the end positions.

[0044] By strengthening the convex plate 19, not only the strength of the main longitudinal reinforcement B itself is improved, but also the connection strength between the main longitudinal reinforcement B and the bottom plate 5 and the transverse reinforcement B14 is improved.

[0045] The reinforcing ribs 15 are respectively embedded and fixed in the embedding grooves 16 respectively provided in the main longitudinal ribs B and the main longitudinal ribs A10 or the main transverse ribs A11.

[0046] The middle portion of the side wall of the reinforcing rib 15 is provided with a plurality of through holes 20 penetrating two opposite side walls of the reinforcing rib 15 at equal intervals along the length direction of the reinforcing rib 15 . The through holes 20 are filled with core rods fixed to the two opposite side walls of the embedding groove 16 .

[0047] The core rod is formed by liquid material flowing into the through hole 20 during injection molding and then cooling.

[0048] Through the through hole 20 provided in the reinforcing rib 15, a core rod can be formed after molding and cooling, and the reinforcing rib 15 and the embedding groove 16 can be completely fixedly connected through the action of the core rod, thereby improving the connection strength between the reinforcing rib 15 and the main longitudinal rib B.

[0049] The groove edge on the inner side of the groove wall of the connecting groove 6 is provided with a step groove 7 that matches the bottom edge of the outer side wall of the support block 4.

[0050] By providing the step slot 7 , the support block 4 can be conveniently and accurately spliced ​​and fixed to the connecting slot 6 .

[0051] The reinforcing ribs 15 are made of high-strength composite material.

[0052] The reinforcing ribs 15 are made of polyurethane, nylon, metal Q235, glass fiber or basalt.

[0053] The present application is manufactured using a compression molding process. During compression molding, the reinforcing ribs are positioned and fixed in the mold of the pallet body 1 and the mold of the strip plate 2 through the structure of the mold itself, and then compression molding is performed to obtain the corresponding pallet body 1 and strip plate 2. Finally, the pallet body 1 and strip plate 2 are assembled to obtain a pallet product.

Claims

1. Composite material logistics pallet with embedded reinforcement ribs, characterized by: The invention comprises a pallet body (1) and a plurality of strip plates (2) arranged in parallel at the bottom of the pallet body (1), wherein the pallet body (1) comprises a top plate (3), the bottom of the top plate (3) is provided with a plurality of columns and a plurality of rows of support blocks (4) arranged transversely, the bottom of the top plate (3) and the area outside the support blocks (4) are evenly provided with longitudinal ribs A (8) and transverse ribs A (9) arranged in an interlaced manner, the strip plates (2) comprise a bottom plate (5), the top of the bottom plate (5) is provided with a plurality of connecting grooves (6) matching the support blocks (4) at equal intervals along the extension direction of the strip plates (2), The top of the bottom plate (5) and the area outside the connecting groove (6) are evenly provided with longitudinal ribs B (13) and transverse ribs B (14) arranged in an interlaced manner. One of the longitudinal ribs A (8) located between two adjacent rows of support blocks (4) is embedded with a reinforcing rib (15) to form a main longitudinal rib A (10), or one of the transverse ribs A (9) located between two adjacent rows of support blocks (4) is embedded with a reinforcing rib (15) to form a main transverse rib A (11). One of the longitudinal ribs B (13) located in the middle of the bottom plate (5) is embedded with a reinforcing rib (15) to form a main longitudinal rib B.

2. The composite material logistics pallet with embedded reinforcement ribs according to claim 1, characterized in that: The bottom edges of the two opposite side walls of the main longitudinal reinforcement A (10) or the main transverse reinforcement A (11) are provided with a plurality of grooves A (12) at equal intervals along the longitudinal extension direction thereof, and the grooves A (12) extend downward to pass through the bottom of the main longitudinal reinforcement A (10) or the main transverse reinforcement A (11). The top edges of the two opposite side walls of the main longitudinal reinforcement B are provided with a plurality of grooves B (17) at equal intervals along the longitudinal extension direction thereof, and the grooves B (17) extend upward to pass through the top of the main longitudinal reinforcement B.

3. The composite material logistics pallet with embedded reinforcement ribs according to claim 2, characterized in that: The groove depth and groove width of the groove A (12) gradually increase from top to bottom, and the groove depth and groove width of the groove B (17) gradually increase from bottom to top.

4. The composite material logistics pallet with embedded reinforcement ribs according to claim 2, characterized in that: A connecting hole (18) is provided at the top of the main longitudinal rib B in the connecting groove (6), corresponding to the position of the groove B (17), for connecting the corresponding grooves B (17) on both sides. The bottom of the connecting hole (18) extends downward to the top of the reinforcing rib (15).

5. The composite material logistics pallet with embedded reinforcement ribs according to claim 1, characterized in that: The longitudinal ribs B (13) respectively pass through the connecting grooves (6) located in the middle of the strip plate (2), and both ends of the longitudinal ribs B (13) extend to extend into the connecting grooves (6) closest to the ends of the strip plate (2).

6. The composite material logistics pallet with embedded reinforcement ribs according to claim 5, characterized in that: Both ends of the reinforcing ribs (15) of the main longitudinal ribs B extend into the connecting grooves (6) closest to the ends of the strip plates (2).

7. The composite material logistics pallet with embedded reinforcement ribs according to claim 1, characterized in that: Reinforcement convex plates (19) are symmetrically provided at the bottom edges of the two side walls of the main longitudinal ribs B, at the positions connected to the transverse ribs B (14), and at the end positions.

8. The composite material logistics pallet with embedded reinforcement ribs according to claim 1, characterized in that: The reinforcing ribs (15) are respectively embedded and fixed in the embedding grooves (16) respectively provided in the main longitudinal ribs B and the main longitudinal ribs A (10) or the main transverse ribs A (11).

9. The composite material logistics pallet with embedded reinforcement ribs according to claim 8, characterized in that: A plurality of through holes (20) penetrating two opposite side walls of the reinforcing rib (15) are provided at equal intervals in the middle of the side wall of the reinforcing rib (15) along the length direction of the reinforcing rib (15), and the through holes (20) are filled with core rods fixed to the two opposite side groove walls of the embedding groove (16).

10. The composite material logistics pallet with embedded reinforcement ribs according to claim 1, characterized in that: The groove edge on the inner side of the groove wall of the connecting groove (6) is provided with a step groove (7) that matches the bottom edge of the outer side wall of the support block (4).

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