Assembled plastic tray

Abstract

Disclosure is an assembled plastic tray. The plastic tray includes a mainboard and strakes fixed at two sides of the mainboard. The mainboard includes two rib frames and multiple strip-shaped pad feel uniformly distributed between the two rib frames. The steps for assembling the plastic tray includes: respectively inserting first mainboard steel tubes and second mainboard steel tubes into first mainboard steel tube holes and second mainboard steel tube holes of the rib frames on the mainboard, subsequently, mounting the two strakes on the two side surfaces of the mainboard through a boss and penetrating slots and fixing the boss and the penetrating slots through strake connection blocks, then inserting strake steel tubes into strake steel tube holes on the two strakes, and then, fixing the strake steel tubes and the first mainboard steel tubes through steel tube connection members and steel blocks.

Claims

1. An assembled plastic tray, comprising a mainboard and at least one strake fixed at two sides of the mainboard; the mainboard comprises at least one rib frame, a plurality of strip-shaped pads disposed on a lower end of the rib, at least one first mainboard steel tube, at least one second mainboard steel tube, at least one strake steel tube, at least one steel tube connection member and at least one steel tube block; wherein each one of the strip-shaped pads is provided with at least one second mainboard steel tube hole for mounting the second mainboard steel tube; both ends of the second mainboard steel tube extend out of the second mainboard steel tube hole; each of the strake is provided with a placement groove corresponding to the second mainboard steel tube hole on the strip-shaped pad; the second mainboard steel tube hole is arranged far away from the rib frame; and at least one penetrating slot is provided on one opposite side surfaces of the rib frame; at least one first mainboard steel tube hole for mounting the first mainboard steel tube is provided at both end and middle portions of the other opposite side surfaces of the rib frame, and the first mainboard steel tube hole is perpendicular to the second mainboard steel tube hole and penetrates through the rib frame; the strake, along a length direction, is provided with at least one strake steel tube hole for mounting the strake steel tube; the strake steel tube hole penetrates through one opposite side surfaces of the strake, the side surface of the strake opposite to the rib frame is provided with a boss matching with the penetrating slot, and the boss is inserted into the corresponding penetrating slot to connect the mainboard with the strake through a strake connection block; both ends of the first mainboard steel tube and both ends of the strake steel tube are connected through the steel tube connection member, and an outer side of the steel tube connection member is provided with a steel tube block for connecting the steel tube connection member with the mainboard and the strake.

2. The assembled plastic tray of claim 1, wherein the number of the rib frames is 2, and the plurality of strip-shaped pads are disposed between the two rib frames.

3. The assembled plastic tray of claim 2, wherein the first mainboard steel tube hole is provided with at least one second penetrating slot, the second penetrating slot is internally provided with a bumper block having a shape matched with the shape of the second penetrating slot; and the second penetrating slot is connected with the bumper block through the strake connection block.

4. The assembled plastic tray of claim 3, wherein an outer side of the strake is also provided with a connection bolt, and the connection bolt passes through the outer wall of the strake to be connected with the mainboard.

5. The assembled plastic tray of claim 1, wherein the strake connection block comprises a clamp portion as well as a first elastic button and a second elastic button symmetrically formed at a lower end of the clamp portion; and a first clamp convex and a second clamp convex are respectively formed in the outer sides of the first elastic button and the second elastic button.

6. The assembled plastic tray of claim 1, wherein both side surfaces of the mainboard opposite to the strake are provided with at least one positioning groove; and the strake is provided with at least one lug matching with the positioning groove.

7. The assembled plastic tray of claim 1, wherein a cross section of the steel tube connection member is of a concave shape, and the both ends of the steel tube connection member are respectively connected with the strake steel tube and the first mainboard steel tube in an insertion manner; the steel tube block further comprises a block body and a plurality of block connection members disposed on one side surface of the block body; each one of the block connection members comprises a third elastic button and a fourth elastic button arranged symmetrically; a third clamp convex and a fourth clamp convex are respectively formed on outer sides of the third elastic button and the fourth elastic button; each one of the block connection members passes through a the bottom of the steel tube connection member to be respectively connected with the strake and the mainboard in an insertion manner.

8. The assembled plastic tray of claim 1, wherein a material of the mainboard and the strake are both PP plastic or PE plastic.

Description

DESCRIPTION OF THE DRAWINGS

(1) FIG. 1 is a splitting diagram of an overall structure according to Embodiment 1-Embodiment 5 of the disclosure;

(2) FIG. 2 is a top view of an overall structure according to Embodiment 1-Embodiment 5 of the disclosure;

(3) FIG. 3 is a cross-sectional view of an overall structure from a plan view taken along A-A according to Embodiment 1-Embodiment 5 of the disclosure;

(4) FIG. 4 is a partially enlarged diagram of a structure at position A according to Embodiment 1-Embodiment 5 of the disclosure;

(5) FIG. 5 is a partially enlarged diagram of a structure at position B according to Embodiment 1-Embodiment 5 of the disclosure;

(6) FIG. 6 is a partially enlarged diagram of a structure at position C according to Embodiment 1-Embodiment 5 of the disclosure;

(7) FIG. 7 is a diagram of an overall structure of a strake connection block according to Embodiment 1-Embodiment 5 of the disclosure;

(8) FIG. 8 is a structural diagram of steel tube distribution according to Embodiment 1-Embodiment 5 of the disclosure;

(9) FIG. 9 is a diagram of an overall structure of a steel tube block according to Embodiment 1-Embodiment 5 of the disclosure;

(10) FIG. 10 is ail exposed structural view according to Embodiment 6-Embodiment 10 of the disclosure;

(11) FIG. 11 is a structural diagram of steel tube distribution according to Embodiment 6-Embodiment 10 of the disclosure;

(12) FIG. 12 is a top view of an overall structure according to embodiment 6-embodiment 10 of the disclosure;

(13) FIG. 13 is a cross-sectional view of an overall structure from a plan view taken along A-A according to Embodiment 6-Embodiment 10 of the disclosure;

(14) FIG. 14 is a partially enlarged diagram of a structure at position C of FIG. 13;

(15) FIG. 15 is a diagram of a strake structure according to Embodiment 6-Embodiment 10 of the disclosure;

(16) FIG. 16 is a partially enlarged diagram of a structure at position A of FIG. 1;

(17) FIG. 17 is a structural diagram of an overall structure of a strake connection block according to Embodiment 6-Embodiment 10 of the disclosure;

(18) FIG. 18 is a diagram of an overall structure of a steel tube block according to Embodiment 6-Embodiment 10 of the disclosure;

(19) FIG. 19 is a partially enlarged view of a structure at position B of FIG. 9;

(20) FIG. 20 is a splitting diagram of an overall structure according to Embodiment 11-Embodiment 15 of the disclosure;

(21) FIG. 21 is a partially enlarged view of a structure at position A of FIG. 20;

(22) FIG. 22 is a structural diagram of a strake of FIG. 20;

(23) FIG. 23 is a structural diagram of a strake connection block of FIG. 20;

(24) FIG. 24 is a structural diagram of a steel tube block of FIG. 20;

(25) FIG. 25 is a partially enlarged view of a structure at position C of FIG. 24;

(26) FIG. 26 is a top view of FIG. 20;

(27) FIG. 27 is a cross-sectional view taken along B-B of FIG. 26;

(28) FIG. 28 is a partially enlarged view of a structure at position D of FIG. 27;

(29) FIG. 29 is a partially enlarged view of a structure at position E of FIG. 27

(30) FIG. 30 is a structural diagram of front and rear mounting strakes of a mainboard according to Embodiment 11-Embodiment 15 of the disclosure;

(31) FIG. 31 is a diagram of steel tube installation of FIG. 30;

(32) FIG. 32 is a structural diagram of left and right mounting strakes of a mainboard according to Embodiment 11-Embodiment 15 of the disclosure;

(33) FIG. 33 is a diagram of steel tube installation of FIG. 32.

(34) Reference numbers are as follows:

(35) Reference numbers of Embodiment 6-Embodiment 10:

(36) 1, mainboard; 11, rib frame; 12, strip-shaped pad foot; 13, first mainboard steel tube hole; 14, second mainboard steel tube hole; 15, penetrating slot; 16, positioning groove; 2, first mainboard steel tube; 3, strake; 31, strake steel tube hole; 32, boss; 33, placement groove; 34, lug; 4, strake connection block; 41, clamp portion; 42, first elastic button; 43, second elastic button, 44, first clamp convex; 45, second clamp convex; 5, strake steel tube; 6, steel tube connection member; 7, steel tube block; 71, block body; 72, block connection member; 721, third elastic button; 722, fourth elastic button; 723, third clamp convex; 724, fourth clamp convex; 8, second mainboard steel tube.

(37) Reference numbers of Embodiment 1-Embodiment 5:

(38) 1, mainboard; 11, rib frame; 12, strip-shaped pad foot; 13, first mainboard steel tube hole; 14, second mainboard steel tube hole; 15, penetrating slot; 16, positioning groove; 2, first mainboard steel tube; 3, strake; 31, strake steel tube hole; 32, boss; 33, placement groove; 34, lug; 4, strake connection block; 41, clamp portion; 42, first elastic button; 43, second elastic button; 44, first clamp convex; 45, second clamp convex; 5, strake steel tube; 6, steel tube connection member; 7, steel tube block; 71, block body; 72, block connection member; 721, third elastic button; 722, fourth elastic button; 723, third clamp convex; 724, fourth clamp convex; 8, second mainboard steel tube.

(39) Reference numbers of Embodiment 11-Embodiment 15:

(40) 1, mainboard; 11, rib frame; 12, strip-shaped pad foot; 13, first mainboard steel tube hole; 14, second mainboard steel tube hole; 15, penetrating slot; 16, positioning groove; 2, first mainboard steel tube; 3, strake; 31, strake steel tube hole; 32, boss; 33, placement groove; 34, lug; 4, strake connection block; 41, clamp portion; 42, first elastic button; 43, second elastic button; 44, first clamp convex; 45, second clamp convex; 5, strake steel tube; 6, steel tube connection member; 7, steel tube block; 71, block body; 72, block connection member; 721, third elastic button; 722, fourth elastic button; 723, third clamp convex; 724, fourth clamp convex; 8, second mainboard steel tube; 9, bumper block; 10, connection bolt

DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS

(41) Embodiments of the disclosure will be described in detail in conjunction with drawings.

Embodiment 1

(42) As shown in FIGS. 1-9, an assembled plastic tray shaped like a Chinese word includes a mainboard 1 and strakes 3 fixed at two sides of the mainboard 1, the mainboard 1 includes rib frames 11 and a plurality of strip-shaped pad feet 12 uniformly distributed under the rib frames 11, and also includes first mainboard steel tubes 2, second mainboard steel tubes 8, strake steel tubes 31, steel tube connection members 6 and steel tube blocks 7;

(43) the strip-shaped pad feet 12, along the length direction, are all provided with second man board steel tube holes 14 for mounting the second mainboard steel tubes 8, the two ends of the second mainboard steel tube 8 extend out of the second mainboard steel tube hole 14, the second mainboard steel tube hole 14 of the strake 3 corresponding to the strip-shaped pad foot 12 is provided with a placement groove 33;

(44) opposite two side surfaces of the rib frame 11 are provided with a plurality of first mainboard steel tube holes 13 for mounting the first mainboard steel tubes 2, two ends and a middle portion of the rib frame 11 are each at least provided with one first mainboard steel tube hole 13, the first mainboard steel tube hole 13 and the second mainboard steel tube hole 14 are vertical and penetrate through the rib frame 11 and the other opposite two surfaces of the rib frame 11 are both provided with penetrating slots 15;

(45) the strake 3, along the length direction, is provided with a strake steel tube hole 31 for mounting a strake steel tube 31, the strake steel tube hole 31 penetrates through the opposite side surfaces of the strake 3, the side surface of the strake 3 opposite to the rib frame 11 is provided with a boss 32 matched with the penetrating slot 15, and the boss 32 is inserted into the corresponding penetrating slot 15 to connect the mainboard 1 with the strake 3 through, a strake connection block 4;

(46) two ends of the first mainboard steel tube 2 located at the two ends of the rib frame 11 and two ends of the strake steel tube 5 are all connected through steel tube connection members 6, the outer side of the steel tube connection member 6 is provided with a steel tube block 7 for connecting the steel tube connection member is with the rib frame 11 and the strake 3.

(47) When in use, a plurality of second mainboard steel tubes 8 are inserted into the second mainboard steel tube holes 14 on the strip-shaped pad feet 12 in advance, the bosses 32 on the strakes 3 are mutually connected with the penetrating slots 15 on the rib frames 11 in an insertion manner and then fixed through the strake connection blocks 4 after insertion, after that, the first mainboard steel tubes 2 are inserted into the first mainboard steel tube holes 13 on the rib frames 11, and the strake steel tubes 5 are inserted into the strake steel tubes 31 of the strakes 3; the first mainboard steel tubes 2 located at two ends of the rib frame 11 are connected with the strake 3 connection steel tubes on the strakes 3 through the strake 3 connection member, then the steel tube connection member 6 is fixed together with the mainboard 1 and the strake 3 through the steel tube block 7 disposed on the outer side of the steel tube connection member 6, and here a clamping manner is adopted for fixation in order to facilitate change of the strake 3; fixation is more firm through double fixation, the change of the strake 3 is convenient, and meanwhile the cost is saved; the injection molding process of the mainboard 1 and the widened strake 3 includes the following steps: (1) loading, namely, mixing selected materials in is proportion and putting the mixture into an injection molding machine; (2) drying the materials, namely, evaporating the moisture contained in the materials; (3) checking and testing a device, namely, detecting if there is any abnormality in the device; (4) changing a mould, namely, changing the corresponding mould to prepare for injection molding; (5) performing screw heating to melt the materials in the injection molding machine; (6) closing the mould, namely, closing upper and lower moulds; (7) performing injection molding, namely, inject melted materials into the moulds; (8) opening the moulds, namely, opening the moulds after the products subjected to injection molding are cooled; (9) finishing, namely, taking out the cooled products and finishing to remove burr edges; (10) performing quality inspection, namely, performing quality inspection on the corresponding products, to remove defective products; and (11) packaging, namely, independently packaging individual products, and after that, binning and pasting qualified certifications.

Embodiment 2

(48) As shown in FIG. 6, this embodiment is based on Embodiment 1. The shake connection block 4 includes a clamp portion 41 as well as a first elastic button 42 and a second clamp portion symmetrically formed at the lower end of the clamp portion 41, and a first clamp convex 44 and a second clamp convex 45 are respectively formed in the outer sides of the first elastic button 42 and the second elastic button 43.

(49) The strake connection block 4 includes the clamp portion 41 as well as the first elastic button 42 and the second clamp portion symmetrically formed at the lower end of the clamp portion 41, which is to facilitate installation, and when this strake connection block 4 connects the strake 3 with the rib frame 11, the strake and the rib frame are tightly clamped through the first clamp convex 44 and the second clamp convex 45 so that the structure is more firm, the upper end surface of the clamp portion 41 is also provided with a line-shaped opening which is parallel to the first elastic button 42 and the second elastic button 43; when in disassembling, the clamp portion 41 is broken through the line-shaped opening by virtue of a tool so as to separate the mainboard 1 from the strake 3.

Embodiment 3

(50) As shown in FIGS. 1-6, this embodiment is based on Embodiment 1. Opposite two side surfaces of the strip-shaped pad foot are also provided with positioning grooves 16, the positioning groove 16 and the second mainboard steel tube hole 14 are in the same plane, and the strake 3 is provided with a lug 34 matched with the positioning groove 16.

(51) The strip-shaped pad foot 12 is provided with the positioning groove 16, and the strake 3 is provided with the lug 54 corresponding to the positioning groove 16, which is to facilitate positioning, and meanwhile take an effect of limiting the strake 3 so that connection between the strake 3 and the mainboard 1 is more stable.

Embodiment 4

(52) As shown in FIGS. 1-9, this embodiment is bused on Embodiment 1. The cross section of the steel tube connection member 6 is of a concave shape, and two sides of the steel tube connection member 6 are respectively connected with the strake steel tube 5 and the first mainboard steel tube 2 in an insertion manner; the steel tube block 7 includes a block body 71 and a plurality of block connection members 72 disposed on one side surface of the block body 71, the block connection member 72 includes a third elastic button 721 and a fourth elastic button 722 which are symmetrically disposed, and a third clamp convex and a fourth clamp convex are respectively formed in the outer sides of the third elastic button 721 and the fourth elastic button 722; the block connection member 72 penetrates through the bottom of the steel tube connection member 6 to be respectively connected with the strake 3 and the mainboard 1 in an insertion manner.

(53) When in connection, two sides of the steel tube connection member 6 are respectively connected with the first mainboard steel tube 2 and the strake steel tube 5 in an insertion manner, the block connection member 72 disposed on the steel tube block 7 passes through the steel tube connection member 6 to be connected with the rib frame 11 and the strake 3, so that connection is convenient and the structure is firm when in use.

Embodiment 5

(54) As shown in FIGS. 1-3, this embodiment is based on Embodiment 1. The materials of the mainboard 1, the widened strake 3 and steel tube block 7 are all PP plastic or PE plastic; the material of the steel tube connection member 6 is iron; the mainboard 1 steel tube and the strake steel tube 5 are both formed by cutting a profile steel tube.

(55) The mainboard 1, the widened strike 3 and the steel tube block 7 all adopt PP plastic or PE plastic, which is because the PP plastic or PE plastic has the advantages of light weight, tasteless and no toxicity, acid alkali resistance and good chemical stability, the material of the steel tube connection member 6 is iron, which is because iron has high hardness and is not easy to deform; the mainboard 1 steel tube and the strake steel tube 5 are both formed by cutting the profile steel tube, so cost is low, and processing is convenient.

Embodiment 6

(56) As shown in FIGS. 10-19, an assembled plastic tray having a loop structure with four sides includes a mainboard 1 and strakes 3 fixed at two sides of the mainboard 1, the mainboard 1 includes two rib frames 11 and a plurality of strip-shaped pad feet 12 uniformly distributed under the two rib frames 11, and also includes first mainboard steel tubes 2, second mainboard steel tubes 8, strake steel tubes 5, steel tube connection members 6 and steel tube blocks 7;

(57) The front and rear side surfaces of the rib frame 11 are provided with second mainboard steel tube holes 14 for mounting the second main steel tubes 8, the two ends of the second mainboard steel tube 8 extend out of the rib frame 11, the strake 3 is provided with a placement groove corresponding to the second mainboard steel tube hole 14, and the front and rear side surfaces of the rib frame 11 are both provided with penetrating slots 15;

(58) The left and right side surfaces and the middle portion of the rib frame 11 are each at least provided with a first mainboard steel tube hole 13 for mounting the first mainboard steel tube 2, and the first mainboard steel tube hole 13 and the second mainboard steel tube hole 14 are vertical and respectively penetrate through the two rib frames 11;

(59) the strake 3, along the length direction, is provided with a strake steel tube hole 31 for mounting a strake steel tube 5, the strake steel tube hole 31 penetrates through the opposite side surfaces of the strake 3, the side surface of the strake 3 opposite to the rib frame 11 is provided with a boss 32 matched with the penetrating slot 15, and the boss 32 is inserted into the corresponding penetrating slot 15 to connect the mainboard 1 with the strake 3 through a strake connection block 4;

(60) two ends of the first mainboard steel tube 2 located at the two ends of the rib frame 11 and two ends of the strake steel tube 5 are all connected through the steel tube connection members 6, the outer side of the steel tube connection member 6 is provided with a steel tube block 7 for connecting the steel tube connection member 6 with the rib frame 11 and the strake 3.

(61) In the above structure, the steps for assembling the plastic tray comprise: firstly, respectively inserting first mainboard steel tubes 2 and second mainboard steel tubes 8 into first mainboard steel tube holes 13 and second mainboard steel tube holes 14 of the rib frames 11 on the mainboard 1, subsequently, mounting the two strakes 3 on the two side surfaces of the mainboard 1 through bosses 32 and penetrating slots 15 and fixing the bosses 32 and the penetrating slots 15 through strake connection blocks 4, then inserting strake steel tubes 5 into strake steel tube holes 31 on the two strakes 3, fixing the strake steel tubes 5 and the first mainboard steel tubes 2 through the steel tube connection members 6 and steel blocks 7, and finally, mounting top and bottom non-slip mats on the rib frames 11, wherein, the non-slip mats are mounted on the two rib frames 11 and extend out of the surfaces of the upper and lower rib fames 11 to take an antiskid effect, and the strake 3 and the rib frame 11 are fixed in a clamp manner; fixation is more firm through double fixation, and change of the strake 3 is convenient, and meanwhile cost is saved; the injection molding process of the mainboard 1 and the strake 3 comprise the following step: (1) loading, namely mixing selected materials in a proportion and putting the mixture into an injection molding machine; (2) drying the materials, namely, evaporating the moisture contained in the materials; (3) checking and testing a device, namely, detecting if there is any abnormality in the device; (4) changing a mould, namely, changing the corresponding mould to prepare for injection molding; (5) performing screw healing to melt the materials in the injection molding machine; (6) closing the mould, namely, closing upper and lower moulds; (7) performing injection molding, namely, injecting melted materials into the moulds; (8) opening the moulds, namely, opening the moulds after the products subjected to injection molding are cooled; (9) finishing, namely, taking out the cooled products and finishing to remove bun edges; (10) performing quality inspection, namely, performing quality inspection on the corresponding products to remove defective products; and (11) packaging, namely, independently packaging individual products, and after that, binning and pasting qualified certifications.

Embodiment 7

(62) As shown in FIG. 17, this embodiment is based on Embodiment 1. The strake connection block 4 includes a clamp portion 41 as well as a first elastic button 42 and a second clamp portion symmetrically formed at the lower end of the clamp portion 41, and a first clamp convex 42 and a second clamp convex 43 are respectively formed in the outer sides of the first elastic button 41 and the second elastic button 43.

(63) The strake connection block 4 includes a clamp portion 41 as well as a first elastic button 42 and a second elastic button 43 symmetrically formed at the lower end of the clamp portion 41, which is to facilitate installation, and when the strake connection block 4 connects the strake 3 with the rib frame 11, the strake 3 and the rib frame 11 are tightly clamped through the first clamp convex 44 and the second clamp convex 45 so that the structure is more stable, the upper end surface of the clamp portion 41 is also provided with a line-shaped opening which is parallel to the first elastic button 42 and the second elastic button 43; when in disassembling, the clamp portion 41 is broken through the line-shaped opening by virtue of a tool so as to separate the mainboard 1 from the strake 3.

Embodiment 8

(64) As shown in FIG. 15 and FIG. 16, this embodiment is based on Embodiment 1. The opposite two side surfaces of the strip-shaped pad foot 12 are also both provided positioning grooves 16, the positioning groove 16 and the second mainboard steel tube hole 14 are in the same plane, and the strake 3 is provided with a lug 34 matched with the positioning groove 16.

(65) The strip-shaped pad foot 12 is provided with the positioning groove 16, and the strake 3 is provided with the lug 34 corresponding to the positioning groove 16, which is to facilitate positioning, and meanwhile lakes an effect of limiting the strake 3, so that connection between the strake 3 and the mainboard 1 is more stable.

Embodiment 9

(66) As shown in FIG. 10, FIG. 18 and FIG. 19, this embodiment is based on Embodiment 1. The steel tube connection member 6 is of a concave shape, and two sides of the steel tube connection member 6 are respectively connected with the strake steel tube 5 and the first mainboard steel tube 2 in an insertion manner, the steel tube block 7 includes a block body 71 and a plurality of block connection members 72 disposed on one side surface of the block body 71, the block connection member 72 includes a third elastic button 721 and a fourth elastic button 722 which are symmetrically disposed, and a third clamp convex and a fourth clamp convex are respectively formed in the outer sides of the third elastic button 721 and the fourth elastic button 722; the block connection member 72 penetrates through the bottom of the steel tube connection member 6 to be respectively connected with the strake 3 and the mainboard 1 in an insertion manner.

(67) When in connection, two sides of the steel tube connection member 6 are respectively connected with the first mainboard steel tube 2 and the strake steel tube 5 in an insertion manner, the block connection member 72 disposed on the steel tube block 7 passes through the steel tube connection member 6 to be connected with the rib frame 11 and the strake 3, so that connection is convenient and the structure is firm when in use.

Embodiment 10

(68) This embodiment is based on Embodiment 1. The materials of the mainboard 1, the widened strake 3 and the steel tube block 7 are all PP plastic or PE plastic, the material of the steel tube connection member 6 is iron; the mainboard steel tube and the strake steel tube 5 are both formed by cutting the profile steel tube.

(69) The mainboard 1, the widened strake 3 and the steel tube block 7 all adopt PP plastic or PE plastic, which is because the PP plastic or PE plastic has the advantages of light weight, tasteless and no toxicity, acid alkali resistance and good chemical stability, the material of the stool tube connection member 6 is iron, which is because iron has high hardness and is not easy to deform; the mainboard stool tube and the shake steel tube 5 are both formed by cutting the profile steel tube, so cost is low, and processing is convenient.

Embodiment 11

(70) A shown in FIGS. 20-29, a dual-face assembled plastic tray includes a mainboard 1 and strakes 3 fixed at two sides of the mainboard 1, the mainboard 1 includes rib frames 11 and a plurality of strip-shaped pad feet 12 uniformly distributed under the rib frames 11, and also includes first mainboard steel tubes 2, second mainboard steel tubes 8, strake steel tubes 5, steel tube connection members 6 and steel tube blocks 7;

(71) The front and rear side surfaces of the rib frame 11 are provided with second mainboard steel tube holes 14 for mounting the second main steel tubes 8, the two ends and the middle portion of the rib frame 11 are at least provided with a second mainboard steel tube hole 14; the two ends of the second mainboard steel tube 8 located in the middle of the rib frame 11 extend out of the mainboard 1, and the strake 3 is provided with a placement groove 33 corresponding to the second mainboards steel tube 8; the front and rear side surfaces of the rib frame 11 are both provided with penetrating slots 15;

(72) the strake 3, along the length direction, is provided with a strake steel tube hole 31 for mounting an strake steel tube 5, the strake steel tube hole 31 penetrates through the opposite side surfaces of the strake 3, the side surface of the strake 3 opposite to the rib frame 11 is provided with a boss 32 matched with the penetrating slot 15, and the boss 32 is inserted into the corresponding penetrating slot 15 to connect the mainboard 1 with the strake 3 through a strake connection block;

(73) The left and right side surfaces and the middle portion of the rib frame 11 are provided with first mainboard steel tube holes 13 for mounting the first mainboard steel tubes 2, and the first mainboard steel tube hole 13 and the second mainboard steel tube hole 14 are vertical and respectively penetrate through the two rib frames 11; two ends of the first mainboard steel tube 2 located at the two ends of the rib frame 11 and the two ends and the middle portion of the rib frame 11 at least provided with one first mainboard steel tube hole 13, and the two ends of the first mainboard steel tube 2 located in the middle of the rib frame 1 extend out of the mainboard 1; the left and right side surfaces of the rib frame 11 are both provided with second penetrating slots 17, and the second penetrating slot 17 is internally provided with a bumper block 9 matched with the second penetrating slot 17;

(74) the first mainboard steel tubes 2 located at the two ends of the rib frame 11 and the two ends of the strake steel tube 5 are both connected through the steel tube connection members 6, and the outer side of the steel tube connection member 6 is provided with a steel tube block 7 for connecting the steel tube connection member 6 with the rib frame 11 and the strake 3.

(75) The steps for assembling the plastic tray comprise: firstly, respectively inserting first mainboard steel tubes 2 and second mainboard steel tubes 8 into first mainboard steel tube holes 13 and second mainboard steel tube holes 14 of the rib frames 11 on the mainboard 1, subsequently, mounting the two strakes 3 on the two side surfaces of the mainboard 1 through bosses 32 and penetrating slots 15 and fixing the bosses 32 and the penetrating slots 15 through strake connection blocks 4, then inserting strake steel tubes 5 into strake steel tube holes 31 on the two strakes 3, fixing the strake steel tubes 5 and the first mainboard steel tubes 2 through the steel tube connection members 6 and steel blocks 7, and finally, mounting top and bottom non-slip mats on the rib frame 11, wherein, the non-slip mats are mounted on the two rib frames 11 and extend out of the surfaces of the upper and lower rib fames 11 to take an antiskid effect, and the strake 3 and the rib frame 11 are fixed in a clamp manner, fixation is more firm through double fixation, and change of the strake 3 is convenient and meanwhile cost is saved; the injection molding process of the mainboard 1 and the strake 3 comprise the following steps: (1) loading, namely, mixing selected materials in a proportion and putting the mixture into an injection molding machine; (2) drying the materials, namely, evaporating the moisture contained in the materials; (3) checking and testing a device, namely, detecting if there is any abnormality in the device; (4) changing a mould, namely, changing the corresponding mould to prepare for injection molding; (5) performing screw heating to melt the materials in the injection molding machine; (6) closing the mould, namely, closing upper and lower moulds; (7) performing injection molding, namely, inject melted materials into the moulds; (8) opening the moulds, namely, opening the moulds after the products subjected to injection molding are cooled; (9) finishing, namely, taking out the cooled products and finishing to remove burr edges; (10) performing quality inspection, namely, performing quality inspection on the corresponding products, to remove defective products; and (11) packaging, namely, independently packaging individual products, and after that, binning and pasting qualified certifications.

(76) Meanwhile, when the strakes 3 are mounted in this mainboard 1, left and right strakes 3 or front and rear strakes 3 can only be mounted, the strakes 3 cannot be mounted from four surfaces. As shown in FIGS. 30-31, the strakes 3 are mounted in the front and rear of the mainboard 1. As shown in FIGS. 32-33, the strakes 3 are mounted in the left and right of the mainboard 1.

Embodiment 12

(77) As shown in FIG. 23, this embodiment is modified on the basis of Embodiment 1. The strake connection block 4 includes a clamp portion 41 as well as a first elastic button 42 and a second clamp portion symmetrically formed at the lower end of the clamp portion 41, and a first clamp convex 44 and a second clamp convex 45 are respectively formed in the outer sides of the first elastic button 42 and the second elastic button 43. The strake connection block 4 includes a clamp portion 41 as well as a first elastic button 42 and a second clamp portion symmetrically formed at the lower end of the clamp portion 41, which is to facilitate installation, and when this strake connection block 4 connects the strake 3 with the rib frame 11, the strake 3 and the rib frame 11 are tightly clamped through the first clamp convex 44 and the second clamp convex 45 so that the structures are more stable.

Embodiment 13

(78) As shown in FIG. 22, this embodiment is modified on the basis of Embodiment 1. The two side surfaces of the mainboard 1 relative to the strakes 3 are both provided with positioning grooves 16, and the strake 3 is provided with a lug 34 corresponding to the positioning groove 16. The strip-shaped pad foot 12 is provided with the positioning groove 16, and the strake 3 is provided with a lug 34 corresponding to the positioning groove 16, which is to facilitate positioning and meanwhile takes an effect of limiting the strake 3 so that connection between the strake 3 and the mainboard 1 is more stable.

Embodiment 14

(79) As shown in FIGS. 24-26, this embodiment is modified on the basis of Embodiment 1. The cross section of the stool tube connection member 6 is of a concave shape, and two sides of the connection member are respectively connected with the strake steel tube 5 and the first mainboard stool tube 2 in an insertion manner; the steel tube block 7 includes a block body 71 and a plurality of block connection members 72 disposed on one side surface of the block body 71, the block connection member 72 includes a third elastic button 721 and a fourth elastic button 722 which are symmetrically disposed, and a third clamp convex and a fourth clamp convex are respectively formed in the oilier sides of the third elastic button 721 and the fourth elastic button 722; the block connection member 72 penetrates through the bottom of the steel tube connection member 6 to be respectively connected with the strake 3 and the mainboard 1 in an insertion manner The concave-shaped steel tube connection member 6 is correspondingly inserted into the first mainboard steel tube 2 and the strake steel tube 5, the steel tube connection member 6 is connected with the mainboard 1 and the strake 3 through the steel tube block 7, which is to facilitate change of the strake 3. Here, a clamp manner is adopted for fixation in order to facilitate change of the strake 3.

Embodiment 15

(80) This embodiment is modified on the basis of Embodiment 1. The outer side of the strake 3 is provided with a connection bolt 10 which penetrates through the outer wall of the strake 3 to be connected with the mainboard 1. The strake 3 is connected with the mainboard 1 through the connection bolt 10, which improves the connection reliability of the strake 3.

(81) The above embodiments are only embodiments of the disclosure, and their descriptions are specific and detailed, but cannot thereby be understood as limiting the scope of the present invention patent. It should be noted that those skilled in the art can also make several deformations and improvements without departing from the concept of the disclosure, and these deformations and improvements are all included in the protection scope of the disclosure.