Tray convenient to maintain and assembling method thereof

Abstract

The invention discloses a tray convenient to maintain and an assembling method thereof in the technical field of carrying brackets, and aims to solve the technical problems that in the prior art, the maintenance cost of a tray is high, and cargoes are easily scratched by protruding cap parts of connecting pieces. The tray comprises an upper supporting cross beam, an upper supporting longitudinal beam, a supporting pier and a lower supporting cross beam which are sequentially distributed from top to bottom, an upper supporting part of the tray comprises the upper supporting cross beam and the upper supporting longitudinal beam which are crossed vertically and horizontally, and a lower supporting part of the tray comprises a lower supporting cross beam which is in the same direction as the upper supporting cross beam; the supporting piers are arranged at the intersections of the upper supporting cross beams, the upper supporting longitudinal beams and the lower supporting cross beams; the supporting piers are matched with the connecting pieces to be provided with upper supporting parts and lower supporting parts respectively, and the upper supporting parts and the lower supporting parts are provided with mounting holes allowing the rod parts of the connecting pieces to pass in the vertical direction respectively.

Description

Technical Field

[0001] The invention relates to a pallet which is easy to maintain and an assembly method thereof, belonging to the technical field of object carriers. Background Art

[0002] A pallet is a movable cargo platform that can conveniently transport the goods loaded on the pallet. Therefore, it is widely used in production, transportation, warehousing and circulation, and plays a huge role in modern logistics with forklifts. A pallet usually consists of an upper and a lower support. The upper support is used to carry the goods, and the lower support is in contact with the ground and has a groove for forklift operation. The components of the upper and lower support parts are usually directly connected by nails, screws, etc., and the raised caps of the connecting parts such as nails and screws are easy to scratch the goods. The pallet made of wood material has low structural strength and poor durability. When the components of the pallet are connected by nails, the smooth surface of the nails can provide limited vertical tightening tension, and the components are easy to fall off and separate. When the components of the pallet are connected by screws, the surface thread of the screw rod can provide greater vertical tightening tension, but it is easy to cause damage to the components of the pallet, and the maintenance cost is high. The shapes and structures of the components of the upper and lower support parts are different, and the corresponding accessories cannot be universal, which increases the cost of daily use and maintenance. Summary of the invention

[0003] In view of the deficiencies of the prior art, the purpose of the present invention is to provide a pallet that is easy to maintain and an assembly method thereof, aiming to solve the technical problems in the prior art that the pallet has high maintenance costs and the raised cap portion of the connecting piece is prone to scratching the goods.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0005] A pallet that is easy to maintain, comprising an upper support beam, an upper support longitudinal beam, a support pier, and a lower support beam that are sequentially distributed from top to bottom, wherein the upper support portion of the pallet comprises an upper support beam and an upper support longitudinal beam that cross each other vertically and horizontally, and the lower support portion of the pallet comprises a lower support beam that is in the same direction as the upper support beam, and the support pier is arranged at the intersection of the upper support beam, the upper support longitudinal beam, and the lower support beam;

[0006] The supporting pier cooperates with the connecting piece to respectively assemble the upper supporting part and the lower supporting part. The upper supporting part and the lower supporting part are respectively provided with mounting holes for vertically accommodating the connecting piece rod to pass through.

[0007] Preferably, a first threaded hole is provided on the top surface of the supporting pier, and a second threaded hole is provided on the bottom surface of the supporting pier;

[0008] The connecting piece is a threaded connecting piece, including a first threaded connecting piece and a second threaded connecting piece respectively matched with the first threaded hole and the second threaded hole;

[0009] The rod of the first threaded connector is connected to the first threaded hole of the supporting pier after passing through the mounting hole of the upper supporting part, and the rod of the second threaded connector is connected to the second threaded hole of the supporting pier after passing through the mounting hole of the lower supporting part.

[0010] Preferably, a first supporting groove is provided on the top surface of the supporting pier, and a first boss matched with the first supporting groove is provided on the bottom surface of the upper supporting longitudinal beam;

[0011] A limiting column is provided in the first supporting groove, and a limiting hole matching the limiting column is provided on the first boss;

[0012] The mounting holes of the upper support portion include second mounting holes arranged at two side areas of the first boss.

[0013] Preferably, a second supporting groove is provided on the bottom surface of the supporting pier, a second boss matched with the second supporting groove is provided on the top surface of the lower supporting beam, a first avoiding groove corresponding to the second boss is provided on the bottom surface of the lower supporting beam, and the depth of the first avoiding groove is greater than the cap height of the second threaded connector;

[0014] The mounting hole of the lower support portion includes a third mounting hole arranged in the first avoidance groove.

[0015] Preferably, the upper supporting beam is identical to the lower supporting beam;

[0016] Second avoidance grooves are formed on both sides of the second boss, and the depth of the second avoidance grooves is greater than the height of the cap portion of the first threaded connector;

[0017] The mounting hole of the upper support portion includes a first mounting hole arranged in the second avoidance groove.

[0018] Preferably, the first threaded connection is identical to the second threaded connection.

[0019] Preferably, a material reduction groove is provided on the top surface or / and the bottom surface of the supporting pier.

[0020] Preferably, the supporting pier, the upper supporting cross beam, the upper supporting longitudinal beam and the lower supporting cross beam are respectively formed in one piece.

[0021] In order to solve the above technical problems, the present invention also provides an assembly method of the above pallet, wherein the connecting member comprises a first connecting member and a second connecting member respectively cooperating with the supporting pier to assemble the upper supporting part and the lower supporting part, and the method comprises the following steps:

[0022] The rod portion of the second connecting member is connected to the supporting pier through the mounting hole of the lower supporting portion;

[0023] The rod portion of the first connecting member is connected to the supporting pier through the mounting hole of the upper supporting portion.

[0024] Preferably, the upper support beam is the same as the lower support beam, the connecting piece is a threaded connecting piece, the top surface of the supporting pier is provided with a first support groove and a first threaded hole corresponding to the first connecting piece, the bottom surface of the upper support longitudinal beam is provided with a first boss matched with the first support groove, a limiting column is provided in the first support groove, a limiting hole matched with the limiting column is provided on the first boss, and the mounting holes of the upper support portion include second mounting holes provided on both side areas of the first boss;

[0025] Before the rod portion of the first connecting member is connected to the supporting pier through the mounting hole of the upper supporting portion, the method further comprises the following steps:

[0026] Place the upper supporting longitudinal beam on the supporting pier, and the first boss of the upper supporting longitudinal beam is engaged in the first supporting groove of the supporting pier and slides longitudinally forward and backward until the limiting column in the first supporting groove is engaged in the limiting hole of the first boss, ensuring that the second mounting hole is aligned with the first threaded hole.

[0027] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: the pallet and its assembly method of the present invention adopt a connection method of a support pier in cooperation with a threaded connector, which prevents the surface threads of the rod of the threaded connector from causing damage to the upper support beam, the upper support longitudinal beam, the lower support beam and other components. Usually, only the support pier needs to be replaced, which reduces the maintenance cost; the support pier between the upper support part and the lower support part also plays a shock-absorbing role, which prevents the goods carried by the upper support part from being damaged. The upper support beam and the lower support beam are designed to be the same, and the accessories of the upper support beam and the lower support beam can be universal. The manufacturer only needs to produce one component, which is conducive to reducing the manufacturing cost; the user unit also reduces the types and quantities of accessories that need to be stored, reducing the cost of daily use and maintenance. The caps of each threaded connector are correspondingly hidden in the first avoidance groove and the second avoidance groove to avoid contact with the goods or the lower pallet and causing damage. The upper supporting longitudinal beam and the top surface of the supporting pier are limited by limiting holes and limiting columns to ensure that the second mounting hole of the upper supporting longitudinal beam is strictly aligned with the first threaded hole of the supporting pier, which facilitates the alignment operation of the first mounting hole of the upper supporting cross beam, helps to reduce the difficulty of assembly operation and realize rapid alignment and assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural schematic diagram of the tray of the present invention;

[0029] Figure 2 It is a partial enlarged view of the top surface of the tray;

[0030] Figure 3 It is a partial enlarged view of the bottom of the tray;

[0031] Figure 4 It is a schematic diagram of the top surface structure of the supporting pier;

[0032] Figure 5 It is a schematic diagram of the bottom structure of the supporting pier;

[0033] Figure 6 It is a partial enlarged view of the top surface of the lower supporting beam or the upper supporting beam;

[0034] Figure 7 It is a partial enlarged view of the top surface of the upper supporting longitudinal beam;

[0035] Figure 8 This is a partial enlarged view of the bottom surface of the upper supporting longitudinal beam.

[0036] In the figure: 1. upper supporting beam; 11. second boss; 12. first avoidance groove; 13. third mounting hole; 14. second avoidance groove; 15. first mounting hole; 2. upper supporting longitudinal beam; 21. first boss; 22. limiting hole; 23. second mounting hole; 3. buttress; 31. first supporting groove; 32. limiting column; 33. first threaded hole; 34. second supporting groove; 35. second threaded hole; 36. material reduction groove; 4. lower supporting beam; 5. first threaded connector; 6. second threaded connector. DETAILED DESCRIPTION

[0037] The present invention will be further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention.

[0038] It should be noted that in the description of the present invention, the directions or positional relationships indicated by the terms "front", "rear", "left", "right", "up", "down", "inside", "outside", "horizontal", "vertical", "vertical", etc. are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention rather than requiring that the present invention must be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention. The terms "front", "rear", "left", "right", "up", and "down" used in the description of the present invention refer to directions in the accompanying drawings, the terms "inside" and "outside" refer to directions toward or away from the geometric center of a specific component, respectively, and "horizontal", "vertical", and "vertical" refer to three directions corresponding to a three-dimensional coordinate system.

[0039] The specific implementation of the present invention provides a pallet that is easy to maintain, which is composed of an upper support beam 1, an upper support longitudinal beam 2, a support pier 3, and a lower support beam 4 that are distributed in sequence from top to bottom. Figure 1As shown, five upper support beams 1 and five upper support longitudinal beams 2 cross horizontally and vertically, and together constitute an upper support part. The upper support beam 1 contacts the goods and plays the role of bearing the goods; three lower support beams 4 in the same direction as the upper support beam 1 constitute a lower support part, and the lower support part contacts the ground. When multiple pallets are stacked, the lower support part of the upper pallet contacts the upper support beam 1 of the lower pallet, and the groove between two adjacent lower support beams 4 plays the role of cooperating with the forklift operation. The support pier 3 is arranged at the intersection of the upper support beam 1, the upper support longitudinal beam 2, and the lower support beam 4, and the various components of the pallet are assembled with the connecting piece to form the pallet of the present invention. Among them, the connecting piece that cooperates with the support pier 3 to assemble the upper support part is the first connecting piece, and the connecting piece that cooperates with the support pier 3 to assemble the lower support part is the second connecting piece. In this embodiment, a total of fifteen support piers 3 are provided, and the upper support part and the lower support part are respectively provided with mounting holes for accommodating the rod of the connecting piece to pass through in the vertical direction. The connecting piece can be a common nail, screw, etc., or a rivet can be used according to a special usage scenario. The connecting piece produces vertical tension in cooperation with the supporting pier 3, thereby assembling the upper supporting cross beam 1, the upper supporting longitudinal beam 2, and the lower supporting cross beam 4, and does not produce vertical tension on the main components such as the upper supporting cross beam 1, the upper supporting longitudinal beam 2, and the lower supporting cross beam 4, thereby avoiding damage to the main components constituting the upper and lower supporting parts. If the connection structure between the connecting piece and the supporting pier 3 is damaged, only the connecting piece or the supporting pier 3 needs to be replaced accordingly, thereby reducing maintenance costs.

[0040] As a preferred solution, the connector in this embodiment adopts a threaded connector to increase the vertical tension between the connector and the pier 3, thereby improving the stability of the connection structure, and at the same time facilitating installation and disassembly, thereby improving maintainability. Based on this connection method, a first threaded hole 33 is provided on the top surface of the pier 3, and a mounting hole corresponding to the first threaded hole 33 is provided vertically on the upper support portion, and the rod of the first threaded connector 5 passes through the mounting hole of the upper support portion from top to bottom and is connected to the first threaded hole 33, thereby fixing the upper support portion to the pier 3. A second threaded hole 35 is provided on the bottom surface of the pier 3, and a mounting hole corresponding to the second threaded hole 35 is provided vertically on the lower support portion, and the rod of the second threaded connector 6 passes through the mounting hole of the lower support portion from bottom to top and is connected to the second threaded hole 35, thereby fixing the lower support portion to the pier 3. Specifically, Figure 2-5 As shown, the connection relationship between the various components of the pallet can be clearly presented.

[0041] The reason why the support pier 3 is connected with the threaded connector is that, firstly, the surface threads of the rod of the threaded connector mesh with the first threaded hole 33 and the second threaded hole 35 of the support pier 3, which can provide a sufficiently large vertical pulling force to avoid falling off and separation. Secondly, there is no threaded engagement between the surface threads of the rod of the threaded connector and the upper supporting beam 1, the upper supporting longitudinal beam 2, and the lower supporting beam 4, which avoids the surface threads of the rod of the threaded connector from damaging the above-mentioned components. Even if the support pier 3 is damaged by the vertical pulling force of the surface threads and the first threaded hole 33 and the second threaded hole 35, only the support pier 3 needs to be replaced without replacing the remaining components, which reduces maintenance costs and facilitates centralized procurement and management of accessories. Thirdly, the support pier 3 between the upper support part and the lower support part also plays a shock-absorbing role to avoid damage to the goods carried by the upper support part.

[0042] More specifically, the top surface of the support pier 3 is provided with a first support groove 31, and the bottom surface of the upper support longitudinal beam 2 is provided with a first boss 21 adapted to the first support groove 31, and the first boss 21 is just engaged in the first support groove 31, so as to achieve the left and right lateral limitation of the support pier 3 compared with the upper support longitudinal beam 2, and at this time, the two can slide in the front and rear longitudinal direction. The two side areas of the first boss 21 are provided with second mounting holes 23 corresponding to the first threaded hole 33. It should be noted that the two side areas of the first boss 21 are not the side surfaces of the first boss 21, but the vertical second mounting holes 23 are provided in the horizontal areas on both sides outside the first boss 21, so as to vertically accommodate the rod of the threaded connector to pass through. Two limiting holes 22 are provided on the first boss 21, and two limiting posts 32 are provided in the first support groove 31 to match the limiting holes 22. When the support pier 3 slides to a preset position along the front-to-back longitudinal direction relative to the upper support longitudinal beam 2, the limiting posts 32 are just engaged therein, thereby realizing the left-right lateral limiting and the front-to-back longitudinal limiting of the support pier 3 relative to the upper support longitudinal beam 2. At this time, the support pier 3 cannot continue to slide, thereby ensuring that the second mounting hole 23 of the upper support longitudinal beam 2 is strictly aligned with the first threaded hole 33 of the support pier 3. The shape structure of the top surface structure of the support pier 3 and the upper support longitudinal beam 2 is as follows: Figure 4 , 7 , as shown in Figure 8.

[0043] More specifically, the bottom surface of the support pier 3 is provided with a second support groove 34, and the top surface of the lower support beam 4 is provided with a second boss 11 adapted to the second support groove 34, and the second boss 11 is just engaged with the second support groove 34, so as to achieve the front and rear longitudinal limitation of the support pier 3 compared with the lower support beam 4. The bottom surface of the lower support beam 4 is provided with a first avoidance groove 12 corresponding to the second boss 11, that is, the first avoidance groove 12 is located on the back of the second boss 11. The mounting hole of the lower support portion includes a third mounting hole 13 provided in the first avoidance groove 12, that is, the rod of the second threaded connector 6 passes through the third mounting hole 13 from bottom to top and is connected to the second threaded hole 35.

[0044] In this embodiment, the upper support beam 1 is the same as the lower support beam 4, that is, the shape, size, and structure are exactly the same. To this end, on the basis of the aforementioned structure of the lower support beam 4, the areas on both sides of the second boss 11 are used as second avoidance grooves 14, and a first mounting hole 15 corresponding to the first threaded hole 33 is opened on the second avoidance groove 14. It should be noted that the first mounting hole 15 is vertically arranged in the horizontal area on both sides of the second boss 11, rather than being arranged on the side of the second boss 11. In summary, the mounting holes of the upper support portion include a first mounting hole 15 arranged on the upper support beam 1 and a second mounting hole 23 arranged on the upper support longitudinal beam 2. The rod portion of the first threaded connector 5 passes through the first mounting hole 15 and the second mounting hole 23 from top to bottom in sequence and is connected to the first threaded hole 33. The shape and structure of the upper support beam 1 or the lower support beam 4 are as follows: Figure 6 The first mounting hole 15, the second mounting hole 23, and the third mounting hole 13 are all vertical through holes with smooth inner walls, and do not engage with the threaded connector, thereby preventing the surface threads of the threaded connector rod from damaging the above-mentioned mounting holes. The upper support beam 1, the upper support longitudinal beam 2, and the lower support beam 4 with mounting holes usually do not need to be replaced, reducing maintenance costs.

[0045] The reason why the upper support beam 1 and the lower support beam 4 are designed the same is that, firstly, on the basis of the lower support beam 4, only the first mounting holes 15 need to be set at the corresponding positions of the second avoidance grooves 14 on both sides of the second boss 11 to realize the function of the upper support beam 1, and the function and structural strength of the lower support beam 4 will not be affected, which is easy to realize. Secondly, the accessories of the upper support beam 1 and the lower support beam 4 can be used universally, and the manufacturer only needs to produce one component, which is conducive to reducing manufacturing costs; the user unit also reduces the types and quantities of accessories that need to be stored, reducing the cost of daily use and maintenance.

[0046] In this embodiment, the first threaded connector 5 is matched with the first threaded hole 33, and the second threaded connector 6 is matched with the second threaded hole 35. In order to further improve the versatility of the accessories, the first threaded connector 5 is the same as the second threaded connector 6, that is, the shape, size, and structure are completely the same, so that they can be used interchangeably, reducing the manufacturing cost of the manufacturer and the maintenance cost of the user.

[0047] In this embodiment, the depth of the second avoidance groove 14 is greater than the height of the cap of the first threaded connector 5, so as to ensure that after the rod of the first threaded connector 5 is threadedly connected to the top surface of the supporting pier 3 through the mounting hole of the upper support part, the cap located on the top surface of the upper supporting beam 1 does not exceed the height of the top surface of the second boss 11 upwards, so as to avoid the cap from scratching the goods carried on the upper supporting beam 1. The depth of the first avoidance groove 12 is greater than the height of the cap of the second threaded connector 6, so as to ensure that after the rod of the second threaded connector 6 is threadedly connected to the bottom surface of the supporting pier 3 through the mounting hole of the lower support part, the cap located on the bottom surface of the lower supporting beam 4 does not exceed the height of the bottom surface of the lower supporting beam 4 downwards, so as to avoid damage to the lower pallet when multiple pallets are stacked.

[0048] In this embodiment, the upper support beam 1, the upper support beam 2, and the lower support beam 4 are made of polyurethane (PU) material. The specific gravity of PU is 1.2-1.3g / cm 3 , with the characteristics of high density, high strength, high toughness, high wear resistance, etc., which can significantly enhance the durability of the pallet. The one-piece molding process further enhances the compactness of the component structure and increases the strength of the component. The support pier 3 is made of polypropylene (PP) material. The specific gravity of PP is 0.9-0.91g / cm 3 , which has the advantages of light weight, good toughness, good chemical resistance, etc., and is conducive to enhancing the shock absorption performance of the supporting pier 3. As a preferred solution, the top and bottom surfaces of the supporting pier 3 are both provided with material reduction grooves 36, which play a role in saving materials.

[0049] The specific embodiment of the present invention also provides an assembly method for facilitating the maintenance of the pallet. The method is implemented based on the aforementioned invention pallet. First, the rod of the second connecting member is connected to the supporting pier 3 through the mounting hole of the lower supporting portion, and then the rod of the first connecting member is connected to the supporting pier 3 through the mounting hole of the upper supporting portion, thereby completing the assembly of the aforementioned invention pallet. The method specifically includes the following steps:

[0050] Step 1, place the supporting pier 3 on the lower supporting beam 4, and the second boss 11 of the lower supporting beam 4 is engaged in the second supporting groove 34 of the supporting pier 3 to achieve the front and rear longitudinal limitation of the supporting pier 3 compared with the lower supporting beam 4; align the third mounting hole 13 of the lower supporting beam 4 with the second threaded hole 35 of the supporting pier 3.

[0051] Step two, pass the rod of the second threaded connector 6 through the third mounting hole 13 of the lower supporting beam 4 and connect it to the second threaded hole 35 of the pier 3, thereby threading the lower supporting portion to the bottom surface of the pier 3; the cap of the second threaded connector 6 is located in the first avoidance groove 12 of the lower supporting beam 4 and does not exceed the height of the bottom surface of the lower supporting beam 4 downwards, so as to avoid damage to the lower pallet when multiple pallets are stacked.

[0052] Step three, place the upper supporting longitudinal beam 2 on the supporting pier 3, and the first boss 21 of the upper supporting longitudinal beam 2 is engaged in the first supporting groove 31 of the supporting pier 3 and slides longitudinally front and back until the limiting column 32 in the first supporting groove 31 is engaged in the limiting hole 22 of the first boss 21, thereby realizing the left and right lateral limitation and the front and back longitudinal limitation of the supporting pier 3 compared with the upper supporting longitudinal beam 2, and at the same time ensuring that the second mounting hole 23 of the upper supporting longitudinal beam 2 is strictly aligned with the first threaded hole 33 of the supporting pier 3, so as to facilitate the alignment operation of the first mounting hole 15 of the upper supporting crossbeam 1 in the next step, which is conducive to reducing the difficulty of assembly operation and realizing rapid alignment and assembly.

[0053] Step 4: Place the upper support crossbeam 1 on the upper support longitudinal beam 2 , and align the first mounting hole 15 of the upper support crossbeam 1 with the second mounting hole 23 of the upper support longitudinal beam 2 .

[0054] Step five, the rod of the first threaded connector 5 passes through the first mounting hole 15 of the upper supporting beam 1, the second mounting hole 23 of the upper supporting longitudinal beam 2 in sequence and is connected to the first threaded hole 33 of the supporting pier 3, and the cap of the first threaded connector 5 is located in the second avoidance groove 14 of the upper supporting beam 1, and does not exceed the height of the top surface of the second boss 11 of the upper supporting beam 1 upwards, so as to prevent the cap from scratching the goods carried on the upper supporting beam 1.

[0055] In this embodiment, the upper support beam 1 is identical to the lower support beam 4, that is, the shape, size, and structure are completely identical. The support pier 3 cooperates with the first threaded connector 5 and the second threaded connector 6 to detachably connect the upper support beam 1, the upper support longitudinal beam 2, and the lower support beam 4, which is convenient for assembly and replacement of accessories. The mounting holes of the upper support beam 1, the upper support longitudinal beam 2, and the lower support beam 4 are all vertical through holes with smooth inner walls, which do not form threaded engagement with the threaded connectors and are therefore not easily damaged. Under normal use conditions, it is generally only necessary to replace the easily damaged support pier 3, and the accessories of the upper support beam 1 and the lower support beam 4 are universal, which is convenient for centralized procurement of accessories and reduces maintenance costs.

[0056] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A pallet that is easy to maintain, characterized in that: The pallet comprises an upper support beam (1), an upper support longitudinal beam (2), a support pier (3), and a lower support beam (4) which are sequentially arranged from top to bottom. The upper support portion of the pallet comprises an upper support beam (1) and an upper support longitudinal beam (2) which cross each other vertically and horizontally. The lower support portion of the pallet comprises a lower support beam (4) which is in the same direction as the upper support beam (1). The support pier (3) is arranged at the intersection of the upper support beam (1), the upper support longitudinal beam (2), and the lower support beam (4). The supporting pier (3) cooperates with the connecting piece to respectively assemble the upper supporting part and the lower supporting part, and the upper supporting part and the lower supporting part are respectively provided with mounting holes for accommodating the connecting piece rod to pass through in the vertical direction.

2. The easy-to-maintain pallet according to claim 1, characterized in that: A first threaded hole (33) is provided on the top surface of the supporting pier (3), and a second threaded hole (35) is provided on the bottom surface of the supporting pier (3); The connecting member is a threaded connecting member, comprising a first threaded connecting member (5) and a second threaded connecting member (6) respectively matched with the first threaded hole (33) and the second threaded hole (35); The rod of the first threaded connector (5) is connected to the first threaded hole (33) of the support pier (3) through the mounting hole of the upper support portion, and the rod of the second threaded connector (6) is connected to the second threaded hole (35) of the support pier (3) through the mounting hole of the lower support portion.

3. The easy-to-maintain pallet according to claim 1, characterized in that: The top surface of the supporting pier (3) is provided with a first supporting groove (31), and the bottom surface of the upper supporting longitudinal beam (2) is provided with a first boss (21) matched with the first supporting groove (31); A limiting column (32) is provided in the first supporting groove (31), and a limiting hole (22) matched with the limiting column (32) is provided on the first boss (21); The mounting holes of the upper support portion include second mounting holes (23) arranged in areas on both sides of the first boss (21).

4. The easy-to-maintain pallet according to claim 2, characterized in that: The bottom surface of the supporting pier (3) is provided with a second supporting groove (34), the top surface of the lower supporting cross beam (4) is provided with a second boss (11) matched with the second supporting groove (34), the bottom surface of the lower supporting cross beam (4) is provided with a first avoidance groove (12) corresponding to the second boss (11), and the depth of the first avoidance groove (12) is greater than the cap height of the second threaded connector (6); The mounting holes of the lower support portion include a third mounting hole (13) arranged in the first avoidance groove (12).

5. The easy-to-maintain pallet according to claim 4, characterized in that: The upper supporting beam (1) is identical to the lower supporting beam (4); Second avoidance grooves (14) are formed in the areas on both sides of the second boss (11), and the depth of the second avoidance grooves (14) is greater than the height of the cap portion of the first threaded connector (5); The mounting hole of the upper support portion comprises a first mounting hole (15) arranged in the second avoidance groove (14).

6. The easy-to-maintain pallet according to claim 2, characterized in that: The first threaded connection (5) is identical to the second threaded connection (6).

7. The easy-to-maintain pallet according to claim 1, characterized in that: The top surface and / or bottom surface of the supporting pier (3) is provided with a material reduction groove (36).

8. The pallet for easy maintenance according to any one of claims 1 to 7, characterized in that: The supporting pier (3), the upper supporting cross beam (1), the upper supporting longitudinal beam (2), and the lower supporting cross beam (4) are respectively formed in one piece.

9. The method for assembling a pallet according to any one of claims 1 to 8, wherein the connecting member comprises a first connecting member and a second connecting member respectively cooperating with the supporting pier (3) to assemble the upper supporting part and the lower supporting part, wherein: The method comprises the following steps: The rod portion of the second connecting member is connected to the supporting pier (3) through the mounting hole of the lower supporting portion; The rod portion of the first connecting member is connected to the supporting pier (3) through the mounting hole of the upper supporting portion.

10. The assembly method according to claim 9, characterized in that: The upper support beam (1) is the same as the lower support beam (4), the connecting piece is a threaded connecting piece, the top surface of the support pier (3) is provided with a first support groove (31) and a first threaded hole (33) corresponding to the first connection piece, the bottom surface of the upper support longitudinal beam (2) is provided with a first boss (21) adapted to the first support groove (31), a limiting column (32) is provided in the first support groove (31), a limiting hole (22) adapted to the limiting column (32) is provided on the first boss (21), and the mounting holes of the upper support portion include second mounting holes (23) provided on both side areas of the first boss (21); Before the rod portion of the first connecting member is connected to the supporting pier (3) through the mounting hole of the upper supporting portion, the method further comprises the following steps: The upper supporting longitudinal beam (2) is placed on the supporting pier (3), and the first boss (21) of the upper supporting longitudinal beam (2) is engaged in the first supporting groove (31) of the supporting pier (3) and slides longitudinally forward and backward until the limiting column (32) in the first supporting groove (31) is engaged in the limiting hole (22) of the first boss (21), ensuring that the second mounting hole (23) is aligned with the first threaded hole (33).

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