CN102320407B - WPC pallet - Google Patents

Abstract

The invention relates to a wood-plastic tray, which is characterized by comprising at least three parallel longitudinal beam plates; at least three axisymmetric cushion blocks are arranged below each longitudinal beam plate; at least five top paving plates are axisymmetrically arranged on the top surfaces of the longitudinal beam plates; the length directions of the top paving plates and the length directions of the longitudinal beam plates are orthogonally arranged; the outer outlines of the cross section main bodies of the longitudinal beam plates are rectangular; two rows of T-shaped grooves are respectively and axisymmetrically arranged on upper and lower surfaces of the longitudinal beam plates; and the longitudinal beam plates are connected with the top paving plates and the cushion blocks through connecting pieces for the T-shaped grooves. According to the wood-plastic tray disclosed by the invention, a novel green environment-friendly wood-plastic material is used; a structural profile is adopted; on the premise of ensuring the performance requirements of the tray, the integral weight is reduced, and the production cost is reduced; because the T-shaped grooves are arranged on the longitudinal beam plates, the top paving plates and the cushion blocks are assembled, disassembled, adjusted and maintained flexibly; the tray is convenient to assemble and disassemble; the installation efficiency is increased; simultaneously, the tray is convenient to maintain and recycle; and the resources can be saved.

Description

WPC pallet

technical field

The invention relates to a pallet for cargo transportation and logistics, in particular to a wood-plastic pallet.

Background technique

Pallets are the key elements connecting transportation, storage, packaging, loading and unloading, and are the most basic handling tools in the modern logistics industry. Pallets play an extremely important role in the field of commodity circulation. At present, in terms of the use of pallet materials, wooden pallets account for about 85% of the total pallets. The manufacture of wooden pallets consumes a large amount of wood every year, resulting in a sharp decrease in forest resources. Plastic or paper pallets have a certain cost and performance. limit. The wood-plastic material made of thermoplastics and wood powder, plant straw powder, plant seed shells and other wood powders is a new green and environmentally friendly product that can be recycled, and it is also an ecologically clean composite material that helps Protect the environment and save resources. Therefore, environmentally friendly wood-plastic material pallets are becoming a development trend.

Existing wood-plastic pallets are usually composed of top planks made of wood-plastic materials and longitudinal beams with "I"-shaped cross-sections. Most of the wood-plastic pallets are two-way entry forks, which cannot meet the requirements of four-way entry forks. The loading and unloading of the goods is inconvenient, and the weight is too large, and the production cost is high; at the same time, the existing wood-plastic pallets are generally assembled by nailing or bonding, the production process is complicated, the labor intensity is high, and the assembly and disassembly are difficult. Plastic trays are difficult to repair and reuse, which is not conducive to the recycling of resources. the

Contents of the invention

In view of the above problems, the applicant has carried out research and improvement to provide a wood-plastic pallet, which can reduce the overall weight, reduce production costs, facilitate assembly and disassembly, improve installation efficiency, and facilitate maintenance and recycling under the premise of ensuring performance requirements. Reuse and save resources.

In order to solve the problems of the technologies described above, the present invention adopts the following technical solutions:

A wood-plastic pallet, comprising at least 3 longitudinal beam plates arranged in parallel, at least 3 axially symmetrical pads are arranged under each of the longitudinal beam plates, and at least 5 top planks are axially symmetrically arranged on the longitudinal beams On the top surface of the board, the length direction of the top plank is set perpendicularly to the length direction of the stringer board; There are two rows of T-shaped slots, and the longitudinal beam boards are connected to the top decking board and the cushion blocks by connecting pieces through the T-shaped slots; the top decking boards, stringer boards, and padding blocks are all made of wood-plastic materials.

further:

The middle part of the stringer plate is provided with lightening holes along the length direction.

Reinforcing ribs are provided in the lightening holes of the stringer plates.

The thickness of the reinforcing rib gradually becomes thicker from the center to both ends.

The outer contour of the main body of the cross-section of the top plank is rectangular, and two rows of axially symmetrical grooves are arranged on the top surface of the top plank, and the mounting holes for connecting the stringer plates are arranged in the grooves.

The cross section of the groove is rectangular or trapezoidal.

The middle part of the back of the top plank is provided with a weight-reducing groove along the length direction.

The spacer has a rectangular frame structure, and the middle part is provided with reinforcing ribs, and the top surface of the spacer is provided with mounting holes for connecting the stringer plates.

Technical effect of the present invention is:

A wood-plastic tray of the present invention uses new green and environmentally friendly wood-plastic materials and adopts structural profiles, so that the overall weight of the tray can be reduced and the production cost can be reduced under the premise of ensuring the performance requirements; It can realize the flexible assembly, disassembly, adjustment and maintenance of top decking and pads, facilitate the assembly and disassembly of pallets, improve installation efficiency, and facilitate maintenance and recycling, saving resources. the

Description of drawings

Fig. 1 is a schematic diagram of a three-dimensional structure of the present invention.

Figure 2 is a schematic diagram of the connection between the stringer plate and the pad.

Figure 3 is a schematic diagram of the connection between the stringer plate and the top deck.

Figure 4 is a schematic cross-sectional view of the top decking.

Fig. 5 is a schematic diagram of the cross-sectional structure of the stringer plate.

Fig. 6 is a schematic diagram of the three-dimensional structure of the spacer.

Detailed ways

The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings.

As shown in Figures 1 to 6, the wood-plastic pallet includes three longitudinal beams 2 arranged in parallel. The main outer contour of the cross-section of the longitudinal beams 2 is rectangular. Groove 4 and T-shaped groove 4 run through the entire length of the longitudinal beam plate 2, and the middle part of the longitudinal beam plate 2 is provided with a lightening hole 201 along the length direction. The thickness of 202 gradually becomes thicker from the center to both ends, and the weight-reducing hole 201 is rectangular, and can also be other shapes. Strength of plate 2. There are three axisymmetrically arranged pads 3 under each stringer plate 2. The pads 3 have a rectangular frame structure, with reinforcing ribs 301 in the middle. Holes 302. Seven top decking boards 1 are axisymmetrically arranged on the top surface of the stringer board 2, the length direction of the top decking board 1 is perpendicular to the length direction of the stringer board 2, and the outer contour of the main body of the cross section of the top boarding board 1 is rectangular. The top surface of the top plank 1 is provided with two rows of axisymmetrically arranged grooves 101, the grooves 101 run through the entire length of the top plank 1, the cross section of the grooves 101 is rectangular or trapezoidal, and are used to connect the installation of the stringer plate 2 The hole 102 is set in the groove 101, and the middle part of the back of the top plank 1 is provided with a weight-reducing groove 103 along the length direction. The groove 101 can not only reduce the weight, reduce the use of materials, but also prevent the installation bolts and nuts from protruding from the top. On the upper surface of the plank 1 , the weight-reducing groove 103 can reduce the weight of the top plank 1 and reduce the use of materials under the condition of ensuring the strength of the top plank 1 . The stringer plate 2 connects the top plank 1 and the spacer 3 with bolts 5 and nuts 6 through the T-shaped slot 4 (as shown in Figures 1, 2, and 3).

In the present invention, the top plank 1, the stringer plate 2 and the spacer 3 are all made of wood-plastic material, and the profile used as the top plank 1, the stringer plate 2 and the spacer 3 is made by molding the wood-plastic raw material. The cross-sectional structures are shown in Figures 4, 5 and 6. The number of top planks 1, longitudinal beams 2 and pads 3 used can be determined according to the design requirements. Usually, at least 3 longitudinal beams 2 are required in parallel, and each longitudinal beam 2 There are at least three axisymmetrically arranged pads 3 below, and at least five top planks 1 are axisymmetrically arranged on the top surface of the stringer board 2 .

When making wood-plastic pallets, the profile is cut into predetermined length and quantity of pallet structural parts according to the pallet specification and size, that is, the top plank 1, the stringer plate 2 and the spacer 3, and then on the top plank 1 and the spacer 3 The mounting hole 102 and the mounting hole 302 are processed separately.

The wood-plastic pallet assembly process follows the principle from bottom to top, as shown in Figure 2, first assemble the stringer plate 2 and the spacer 3, the specific method is to first take a stringer plate 2, and follow the T-shaped underside of the stringer plate 2 Three groups of bolts are placed in the groove 4, and each group of bolts has four bolts 5. Take three pads 3, and after the bolts 5 are introduced into the mounting holes 302 on the corresponding pads 3, screw the bolts 5 with the nuts 6, and then Install and fasten the three pads 3 in the groove direction to complete the assembly of a stringer plate 2 and the pads 3; further, assemble the top plank 1 and the three above-mentioned components orthogonally to form a wood-plastic pallet (see Figure 1), the specific method is to first take three assemblies of stringer plates 2 and pads 3 and place them in parallel, and place seven sets of bolts along the T-shaped groove 4 on each stringer plate, each set of bolts includes 4 The bolts 5 correspond to each piece of top decking 1. Take seven top deckings 1, insert the bolts 5 into the mounting holes 102 on the corresponding top decking, screw the bolts 5 with nuts 6 in the groove 101, and connect each set of connectors and After the top plank 1 is moved to the required position, tighten all the bolts and nuts one by one to complete the installation of the entire wood-plastic pallet (see Figure 1). It can be seen from Fig. 1 that the wood-plastic pallet of the present invention has fork-in space under the four sides, which can realize the four-way in-fork logistics condition, facilitate the loading and unloading of goods, and have good logistics adaptability.

Because in the pallet structure of the present invention, the T-shaped groove structure is arranged in the longitudinal beam plate 2, when the connecting parts are not fastened, the installation positions of the top plank 1 and the spacer 3 can be adjusted conveniently, or the top plank or pad can be increased or decreased. The number of blocks installed can adapt to the application requirements of different bearing characteristics, performance requirements and packaging products, which broadens the application range of pallets. the

Claims (6)

1. A wood-plastic pallet, characterized in that: it comprises at least 3 longitudinal beam plates arranged in parallel, each of the longitudinal beam plates is provided with at least 3 axisymmetric pads, and at least 5 top planks are axially symmetrical It is arranged on the top surface of the stringer plate, and the length direction of the top deck is perpendicular to the length direction of the stringer plate; the outer profile of the main body of the longitudinal beam plate is rectangular, and the longitudinal beam plate There are two rows of T-shaped grooves arranged symmetrically on the upper and lower sides, and the longitudinal beam boards are connected to the top plank and the cushion blocks through T-shaped grooves; the top plank, longitudinal beam plates and cushion blocks are all made of wood Made of plastic material. 2. The wood-plastic pallet according to claim 1, characterized in that: the middle part of the stringer plate is provided with a weight-reducing hole along the length direction. 3. The wood-plastic pallet according to claim 2, characterized in that: reinforcing ribs are provided in the weight-reducing holes of the stringer boards. 4. The wood-plastic pallet according to claim 1, characterized in that: the outer contour of the main body of the cross-section of the top plank is rectangular, and the top surface of the top plank is provided with two rows of axisymmetrically arranged grooves for Mounting holes for connecting the stringer plates are provided in the grooves. 5. The wood-plastic pallet according to claim 4, wherein the cross-section of the groove is rectangular or trapezoidal. 6. The wood-plastic pallet according to claim 1, characterized in that: the spacer has a rectangular frame structure, the middle part is provided with reinforcing ribs, and the top surface of the spacer is provided with a mounting bracket for connecting the longitudinal beam plate. hole.

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