Main pipe pair combined packaging bottom support

Abstract

The utility model discloses a main pipe and auxiliary pipe combination packaging bottom support which comprises a support cover part and at least one limiting unit arranged on the support cover part, and each limiting unit comprises a first limiting part used for fixing and limiting one side of a main pipe and auxiliary pipe combination in the transverse direction. The second limiting part is parallel to the first limiting part and can limit the other side of the main pipe pair combination in the transverse direction and the vertical direction. The two limiting parts are arranged and comprise the two transverse limiting structures and the vertical limiting structure, transverse limiting on the two sides of the main pipe pair combination and vertical limiting on the main pipe pair combination are achieved respectively, and it is ensured that the situation of loosening and colliding is avoided in the transportation process.

Description

Technical Field

[0001] The utility model relates to the technical field of motorcycle parts packaging, in particular to a main and auxiliary combined packaging base. Background Art

[0002] The main and sub-assembly, also known as the main beam tube, is a key component of the front of the motorcycle frame. Its front part is connected to the outside of the seat tube, its upper part is connected to the bottom support of the fuel tank, and its lower part is connected to the upper end of the engine. The rear part is flattened to facilitate the installation and connection of the rear frame assembly. Therefore, it is particularly important to maintain the integrity of the main and sub-assembly during packaging and transportation.

[0003] The existing packaging method for motorcycle main and subassemblies involves wrapping the main assembly in bubble wrap, placing it in a paper-padded box, and then placing it directly into the cardboard box. The box is then covered and packaged for shipment. Because the main assembly is tubular and has a number of easily deformable lugs or wire frames on its surface, it is prone to movement within the box during transportation, resulting in damage and economic losses. Some existing packaging boxes have a slotted bottom retaining bar, into which components are snapped from top to bottom. While this improves component stability, vertical movement and loosening are still possible, and it cannot completely prevent bumps and dents. Utility Model Content

[0004] In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is to provide a main and sub-combination packaging base that can prevent the main and sub-combination packaging from loosening and bumping.

[0005] In order to solve the above technical problems, a technical solution adopted by the present invention is: to provide a main and auxiliary combination packaging base, including a cover portion and at least one limiting unit arranged on the cover portion, each of the limiting units includes a first limiting portion for fixing and laterally limiting one side of the main and auxiliary combination, and a second limiting portion arranged parallel to the first limiting portion and capable of limiting the other side of the main and auxiliary combination both laterally and vertically.

[0006] With the above structure, the first limiting portion and the second limiting portion are provided to limit the two sides of the main and sub-assembly in the transverse direction of the base respectively. At the same time, a limiting position for limiting the corresponding side of the main and sub-assembly in the vertical direction of the base is also provided on the second limiting portion, which greatly limits the movement space of the main and sub-assembly in the horizontal and vertical directions. On the premise that the two limiting portions are fixedly installed on the base, the packaging stability of the main and sub-assembly can be fully guaranteed to prevent loosening and collision during transportation. The structure is simple and easy to use.

[0007] In order to simplify the structure and facilitate installation, preferably, a first lateral limiting structure for fixing and laterally limiting one side of the main-sub assembly is formed on the first limiting portion, a second lateral limiting structure for fixing and laterally limiting the other side of the main-sub assembly is formed on one side of the second limiting portion, and a vertical limiting structure for fixing and vertically limiting the main-sub assembly is provided on the other side of the second limiting portion.

[0008] In order to simplify the structure and facilitate production, preferably, the first transverse limiting structure includes a first clamping groove which is provided on the first limiting portion and opens toward one side of the second limiting portion.

[0009] In order to adapt to the corresponding end of the packaging main and sub-combination, preferably, the first card slot includes a first notch opening toward one side of the second limiting portion and a second notch opening toward the top and connected to the first notch, and the second notch is for the corresponding end of the main and sub-combination to be vertically inserted from top to bottom.

[0010] To facilitate forming and assembly, preferably, the first limiting portion includes a first pressing plate made of corrugated paper and a first folding structure formed on the first pressing plate; the first folding structure includes four first folding lines spaced apart in sequence along the width direction of the first pressing plate, each of the first folding lines is arranged in parallel along the width direction of the first pressing plate so that the first pressing plate is sequentially divided into a first side panel, a first top panel, a second side panel, a first bottom panel and a third side panel, the first side panel and the second side panel are respectively bent vertically downward along the two first folding lines where the first top panel is located, the first bottom panel is bent horizontally toward one side of the first side panel along the first folding line between the first bottom panel and the second side panel, the third side panel is bent vertically upward along the first folding line between the third side panel and the first bottom panel and stacked on the inner side of the first side panel to form a square tube shape, the first notch is formed on the first side panel and the third side panel, and the second notch is formed on the first top panel.

[0011] In order to simplify the structure and facilitate production, preferably, the second transverse limiting structure includes a second slot that is provided on the second limiting portion and opens toward one side of the first limiting portion.

[0012] In order to adapt to the corresponding end of the packaging main and sub-combination, preferably, the second card slot includes a third notch opening toward one side of the first limiting portion and a fourth notch opening toward the top and connected to the third notch, and the third notch is for the main and sub-combination to be inserted into it along a horizontal direction perpendicular to the second limiting portion.

[0013] To facilitate forming and assembly, preferably, the second limiting portion includes a second pressing plate made of corrugated paper and a second folding structure formed on the second pressing plate; the second folding structure includes four second folding lines spaced apart in sequence along the width direction of the second pressing plate, and each of the second folding lines is arranged in parallel along the width direction of the second pressing plate so that the second pressing plate is sequentially divided into a fourth side panel, a second top panel, a fifth side panel, a second bottom panel and a sixth side panel, the fourth side panel and the fifth side panel are respectively bent vertically downward along the two second folding lines where the second top panel is located, the second bottom panel is laterally bent toward one side of the fourth side panel along the second folding line between the second bottom panel and the fifth side panel, the sixth side panel is vertically bent upward along the second folding line between the second bottom panel and the second top panel and stacked on the inner side of the fourth side panel to form a square tube shape, the third notch is formed on the fourth side panel and the sixth side panel, and the fourth notch is formed on the second top panel.

[0014] In order to facilitate vertical restriction of the movement of the main and sub-assemblies and simplify the installation structure, preferably, the vertical limiting structure includes a fifth notch provided on the fifth side plate and connected to the second slot.

[0015] Beneficial effect: The utility model is provided with two limiting parts, including two lateral limiting structures and one vertical limiting structure, which respectively realize the lateral limiting of both sides of the main and sub-combinations and the vertical limiting of the main and sub-combinations, ensuring that loosening and collision are avoided during transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0017] Figure 1 This is an exploded view of the installation structure of the utility model.

[0018] Figure 2 It is a structural diagram of the cover portion.

[0019] Figure 3 It is a structural schematic diagram of the first pressing plate and its bending forming.

[0020] Figure 4 It is a schematic diagram of the structure of the second pressing plate and its bending forming.

[0021] Figure 5 This is a schematic diagram of the installation structure of the utility model.

[0022] The meanings of the reference numerals in the accompanying drawings are:

[0023] Cover portion 1; bottom support plate 10; first enclosure 101; second enclosure 102; third enclosure 103; fourth enclosure 104; handle hole 105; first stopper 11; first pressure plate 110; first slot 111; first notch 111a; second notch 111b; first folding line 112; end plate 116;

[0024] Second limiting portion 12; second pressing plate 120; second slot 121; third notch 121a; fourth notch 121b; second folding line 122;

[0025] First side plate 21; second side plate 22; third side plate 23; fourth side plate 24; fifth side plate 25; fifth notch 251; sixth side plate 26;

[0026] First top plate 31; second top plate 32; first bottom plate 41; second bottom plate 42; strip-shaped hole 5. DETAILED DESCRIPTION

[0027] Depend on Figures 1 to 5 As shown, the utility model includes a cover supporting portion 1 and at least one limiting unit arranged on the cover supporting portion 1, each of the limiting units includes a first limiting portion 11 for fixing and laterally limiting one side of the main and auxiliary combination, and a second limiting portion 12 arranged parallel to the first limiting portion 11 and capable of limiting the other side of the main and auxiliary combination both laterally and vertically.

[0028] Specifically, a first lateral limiting structure for fixing and laterally limiting one side of the main-sub assembly is formed on the first limiting portion 11, a second lateral limiting structure for fixing and laterally limiting the other side of the main-sub assembly is formed on one side of the second limiting portion 12, and a vertical limiting structure for fixing and vertically limiting the main-sub assembly is provided on the other side of the second limiting portion 12.

[0029] Among them, the first lateral limiting structure includes a first card slot 111 opened on the first limiting portion 11 and opening toward the second limiting portion 12. The first card slot 111 includes a first notch 111a opening toward the second limiting portion 12 and a second notch 111b opening toward the top and connected to the first notch 111a. The second notch 111b is for the corresponding end of the main and sub-assembly to be vertically inserted therein from top to bottom.

[0030] The first limiting portion 11 includes a first pressing plate 110 made of corrugated paper and a first folding structure formed on the first pressing plate 110; the first folding structure includes four first folding lines 112 sequentially spaced along the width direction of the first pressing plate 110, each of the first folding lines 112 is arranged in parallel along the width direction of the first pressing plate 110 so that the first pressing plate 110 is sequentially divided into a first side plate 21, a first top plate 31, a second side plate 22, a first bottom plate 41 and a third side plate 23, the first side plate 21 and the second The side panels 22 are bent vertically downward along the two first folding lines 112 where the first top panel 31 is located, the first bottom panel 41 is bent horizontally toward one side of the first side panel 21 along the first folding line 112 between the first bottom panel 41 and the second side panel 22, and the third side panel 23 is bent vertically upward along the first folding line 112 between the first bottom panel 41 and the first side panel 21 and stacked on the inner side of the first side panel 21 to form a square tube shape. The first notch 111a is formed on the first side panel 21 and the third side panel 23, and the second notch 111b is formed on the first top panel 31.

[0031] In addition, the second lateral limiting structure includes a second card slot 121 opened on the second limiting portion 12 and opening toward the first limiting portion 11. The second card slot 121 includes a third notch 121a opening toward the first limiting portion 11 and a fourth notch 121b opening toward the top and connected to the third notch 121a. The third notch 121a is for the main and sub-assembly to be inserted into it along a direction perpendicular to the lateral direction of the second limiting portion 12.

[0032] The second limiting portion 12 includes a second pressing plate 120 made of corrugated paper and a second folding structure formed on the second pressing plate 120; the second folding structure includes four second folding lines 122 sequentially spaced along the width direction of the second pressing plate 120, each of the second folding lines 122 is arranged parallel to the width direction of the second pressing plate 120 so that the second pressing plate 120 is sequentially divided into a fourth side panel 24, a second top panel 32, a fifth side panel 25, a second bottom panel 42 and a sixth side panel 26, the fourth side panel 24 and the fifth side panel 25 The second bottom panel 42 is bent vertically downward along the two second folding lines 122 where the second top panel 32 is located, the second bottom panel 42 is bent horizontally toward the side of the fourth side panel 24 along the second folding line 122 between the second bottom panel 42 and the fifth side panel 25, and the sixth side panel 26 is bent vertically upward along the second folding line 122 between the second bottom panel 42 toward the side of the second top panel 32 and stacked on the inner side of the fourth side panel 24 to form a square tube shape. The third notch 121a is formed on the fourth side panel 24 and the sixth side panel 26, and the fourth notch 121b is formed on the second top panel 32.

[0033] At the same time, the vertical limiting structure includes a fifth notch 251 provided on the fifth side plate 25 and communicating with the second latching slot 121 .

[0034] The operating principle of this utility model is as follows:

[0035] like Figure 1 and Figure 2 As shown, at least one limiting unit is provided on the cover portion 1. The cover portion 1 is used to support the bottom of the packaging box. When the main and sub-packaging combinations are packaged, the cover portion 1 cooperates with other packaging parts to complete the packaging through the packing rope, thereby packaging the main and sub-packaging combinations inside the cover portion 1 to prevent the bottom of the main and sub-packaging combinations from contacting the ground.

[0036] First, the cover portion 1 includes a bottom support plate 10, which is a rectangular structure and can be a square or a rectangle as needed. A first panel 101, a second panel 102, a third panel 103 and a fourth panel 104 are formed integrally at the edge of the bottom support plate 10. The bottom support plate 10 and the four panels are arranged to form a cavity structure with an open top. The two ends of the third panel 103 intersect with the same-direction ends of the first panel 101 and the second panel 102, and the two ends of the fourth panel 104 intersect with the same-direction ends of the first panel 101 and the second panel 102, respectively. The first and second panels 101 and 102 intersect at the ends, and end panels 116 are provided at the corresponding intersection positions on the first and second panels 101 and 102, and the end panels 116 at the corresponding ends are connected to the corresponding third panel 103 or fourth panel 104 by gluing or nailing with metal nails. Hand holes 105 are symmetrically opened on the two panels, such as the first and second panels 101 and 102, and also on the third and fourth panels 103 and 104, so that the handling personnel can increase the gripping force between the packaging base and the hand through the hand holes 105, so that the handling personnel can move the packaging base. It should be noted that the horizontal direction in this embodiment refers to the first limiting portion 11 and the length and width direction, and the vertical direction refers to the vertical direction or height direction.

[0037] Next, each limiting unit includes a first limiting portion 11 for fixing and laterally limiting one side of the main pipe sub-assembly, and a second limiting portion 12 arranged parallel to the first limiting portion 11 and laterally limiting the other side of the main pipe sub-assembly. A second lateral limiting structure for fixing and laterally limiting the other side of the main pipe sub-assembly and a vertical limiting structure for fixing and vertically limiting the main pipe sub-assembly are formed on the second limiting portion 12. When the main pipe sub-assembly is installed on the first limiting portion 11, the second limiting portion 12 and the vertical limiting structure, the freedom of the main pipe sub-assembly can be fully limited in the lateral and vertical directions, preventing the main pipe sub-assembly from moving up and down or shaking laterally during transportation, thereby improving packaging stability and ensuring transportation safety of the main pipe sub-assembly.

[0038] Among them, such as Figure 1 and Figure 3As shown, the first limiting portion 11 includes a first pressing plate 110 made of corrugated paper, a first folding structure formed on the first pressing plate 110, and a first transverse limiting structure formed on the first pressing plate 110. The first pressing plate 110 cooperates with the first folding structure to fold into a tubular structure, which is not only low-cost but also simple and convenient to manufacture. The first transverse limiting structure is used to limit and fix one end of the main and sub-assembly in the transverse direction, thereby preventing the main and sub-assembly from shaking in the transverse direction and causing collision damage.

[0039] The first pressure plate 110 is a rectangular sheet structure. The lower end of the tubular structure after the first pressure plate 110 is folded is fixedly connected to the bottom support plate 10. At the same time, the left and right ends of the tubular structure are respectively abutted against the first enclosure 101 and the second enclosure 102 to increase the bearing capacity of the entire packaging base and improve the firmness of the packaging.

[0040] When the first limiting portion 11 is assembled, the first side panel 21 and the second side panel 22 are respectively bent vertically downward along the two first folding lines 112 where the first top panel 31 is located, the first bottom panel 41 is bent horizontally toward one side of the first side panel 21 along the first folding line 112 between the first bottom panel 41 and the second side panel 22, and the third side panel 23 is bent vertically upward along the first folding line 112 between the first bottom panel 41 and the first side panel 21 to form a square tube shape. The stacked first side panel 21 and the third side panel 23 are connected and fixed by nailing; wherein, the first card The groove 111 includes a first notch 111a opening toward one side of the second limiting portion 12 and a second notch 111b opening toward the top and connected to the first notch 111a. The first notch 111a is formed on the first side plate 21 and the third side plate 23, and the second notch 111b is formed on the first top plate 31. When the first pressing plate 110 is folded into a tubular structure, the second notch 111b and the first notch 111a are connected and enclosed to form the first card slot 111, and the second notch 111b is for the corresponding end of the main and sub-combination to be vertically inserted into it from top to bottom.

[0041] In addition, the thickness of the first pressure plate 110 should be set so that when one side of the main pipe sub-assembly is placed flat in the first card slot 111, the plane where the upper end of the main pipe sub-assembly is located is lower than or flush with the plane where the upper end surface of the first top plate 31 is located. Preferably, the plane where the upper end of the main pipe sub-assembly is located is lower than the plane where the upper end surface of the first top plate 31 is located to avoid squeezing and bruising during stacking and packaging.

[0042] Similarly, if Figure 1 and Figure 4As shown, the second limiting portion 12 includes a second pressing plate 120 made of corrugated paper, a second folding structure formed on the second pressing plate 120, and a second transverse limiting structure formed on one side of the second pressing plate 120. The second pressing plate 120 cooperates with the second folding structure to fold into a tubular structure. The second transverse limiting structure is used to limit and fix one end of the main and sub-assembly in the transverse direction, thereby preventing the main and sub-assembly from shaking in the transverse direction and causing collision damage.

[0043] The second pressure plate 120 is a rectangular sheet structure. The lower end of the tubular structure after the second pressure plate 120 is folded is fixedly connected to the bottom support plate 10. At the same time, the left and right ends of the tubular structure are respectively abutted against the first enclosure 101 and the second enclosure 102 to increase the bearing capacity of the entire packaging base and improve the firmness of the packaging.

[0044] When the second limiting portion 12 is assembled, the fourth side panel 24 and the fifth side panel 25 are respectively bent vertically downward along the two second folding lines 122 where the second top panel 32 is located, the second bottom panel 42 is bent horizontally toward the fourth side panel 24 along the second folding line 122 between the second bottom panel 42 and the fifth side panel 25, and the sixth side panel 26 is bent vertically upward along the second folding line 122 between the second bottom panel 42 and the second top panel 32 and stacked on the inner side of the fourth side panel 24 to form a square tube shape; wherein the second card slot 121 includes a second card slot 121 extending toward the first limiting portion 12 A third notch 121a is opened on one side of the position portion 11, and a fourth notch 121b is opened toward the top and connected to the third notch 121a. The third notch 121a is formed on the fourth side plate 24 and the sixth side plate 26. The fourth notch 121b is formed on the second top plate 32. When the second pressing plate 120 is folded into a tubular structure, the fourth notch 121b and the third notch 121a are connected and enclosed to form a second card slot 121, and the fourth notch 121b is for the corresponding end of the main and sub-assembly to be vertically inserted therein from top to bottom.

[0045] In addition, when the second pressing plate 120 is folded into a tubular structure, a vertical limiting structure for fixing and vertically limiting the main and sub-combinations is formed on the other side of the second limiting portion 12. The vertical limiting structure includes a fifth notch 251 provided on the fifth side plate 25 and connected to the second card slot 121, which facilitates the horizontal insertion of the rear flat position of the main and sub-combinations. In this way, the position of the second top plate 32 vertically limits the movement space of the main and sub-combinations. Combined with the transverse limiting packaging effect of the two limiting portions, the packaging and transportation stability of the main and sub-combinations can be fully guaranteed.

[0046] Among them, since the pressing plate itself has a certain thickness, it is easy for the creases to be not in a straight line when folded, which affects the quality of bending and forming. Therefore, a bending auxiliary part is formed on the first pressing plate 110, and the bending auxiliary part includes a plurality of strip holes 5 arranged on the first folding line 112 between the second side plate 22 and the first bottom plate 41. The strip holes 5 are opened at equal intervals along the length direction of the first folding line 112 to reduce the difficulty of bending and forming.

[0047] During packaging, after folding the first pressing plate 110 and the second pressing plate 120 through the first folding line 112 and the second folding line 122, the first limiting part 11 and the second limiting part 12 are installed in the cover part 1 and fixed, and then the flat mouth position of the rear end of the main body sub-assembly is first extended into the square tubular hollow part of the second limiting part 12 through the second card slot 121, and then horizontally extended into the fifth notch 251, and then, the front end of the main body sub-assembly is vertically inserted into the first card slot 111 from top to bottom, and at the same time, the rear end of the main body sub-assembly is also vertically inserted into the second card slot 121 from top to bottom. At this time, the main body sub-assembly is in a horizontal placement state, and the packaging and fixation of the main body sub-assembly is completed.

[0048] It should be noted that if Figure 5 As shown, if two limiting units need to be set on the cover part 1, it is only necessary to install the two limiting units in a mirror image, that is, place the two first limiting parts 11 back to back and the two second limiting parts 12 are respectively set in a mirror image.

Claims

1. A main and auxiliary combined packaging base, characterized by: The invention comprises a cover supporting portion (1) and at least one limiting unit arranged on the cover supporting portion (1), each limiting unit comprising a first limiting portion (11) for fixing and laterally limiting one side of the main and auxiliary combination, and a second limiting portion (12) arranged parallel to the first limiting portion (11) and capable of limiting the other side of the main and auxiliary combination both laterally and vertically.

2. The main and auxiliary combined packaging base according to claim 1, characterized in that: A first lateral limiting structure for fixing and laterally limiting one side of the main and auxiliary combination is formed on the first limiting portion (11), a second lateral limiting structure for fixing and laterally limiting the other side of the main and auxiliary combination is formed on one side of the second limiting portion (12), and a vertical limiting structure for fixing and vertically limiting the main and auxiliary combination is provided on the other side of the second limiting portion (12).

3. The main and auxiliary combined packaging base according to claim 2, characterized in that: The first transverse limiting structure comprises a first clamping groove (111) formed on the first limiting portion (11) and opening toward one side of the second limiting portion (12).

4. The main and auxiliary combined packaging base according to claim 3, characterized in that: The first slot (111) comprises a first notch (111a) opening toward one side of the second limiting portion (12) and a second notch (111b) opening toward the top and communicating with the first notch (111a); the second notch (111b) is for the corresponding end of the main and auxiliary combination to be inserted therein vertically from top to bottom.

5. The main and auxiliary combined packaging base according to claim 4, characterized in that: The first limiting portion (11) includes a first pressing plate (110) made of corrugated paper and a first folding structure formed on the first pressing plate (110); the first folding structure includes four first folding lines (112) sequentially spaced along the width direction of the first pressing plate (110), and each of the first folding lines (112) is arranged in parallel along the width direction of the first pressing plate (110) so that the first pressing plate (110) is sequentially divided into a first side plate (21), a first top plate (31), a second side plate (22), a first bottom plate (41) and a third side plate (23), the first side plate (21) and the second side plate The first side panel (22) is bent vertically downward along the two first folding lines (112) where the first top panel (31) is located, the first bottom panel (41) is bent horizontally toward one side of the first side panel (21) along the first folding line (112) between the first bottom panel (41) and the second side panel (22), the third side panel (23) is bent vertically upward along the first folding line (112) between the first bottom panel (41) and the first side panel (21) and is stacked on the inner side of the first side panel (21) to form a square tube shape, the first notch (111a) is formed on the first side panel (21) and the third side panel (23), and the second notch (111b) is formed on the first top panel (31).

6. The main and auxiliary combined packaging base according to claim 2, characterized in that: The second transverse limiting structure comprises a second clamping groove (121) formed on the second limiting portion (12) and opening toward one side of the first limiting portion (11).

7. The main and auxiliary combined packaging base according to claim 6, characterized in that: The second slot (121) comprises a third notch (121a) opening toward one side of the first limiting portion (11) and a fourth notch (121b) opening toward the top and communicating with the third notch (121a); ​​the third notch (121a) is for the main and auxiliary assembly to be inserted therein along a direction perpendicular to the transverse direction of the second limiting portion (12).

8. The main and auxiliary combined packaging base according to claim 7, characterized in that: The second limiting portion (12) includes a second pressing plate (120) made of corrugated paper and a second folding structure formed on the second pressing plate (120); the second folding structure includes four second folding lines (122) sequentially spaced along the width direction of the second pressing plate (120), and each of the second folding lines (122) is arranged in parallel along the width direction of the second pressing plate (120) so that the second pressing plate (120) is sequentially divided into a fourth side plate (24), a second top plate (32), a fifth side plate (25), a second bottom plate (42) and a sixth side plate (26), and the fourth side plate (24) and the fifth side plate (25) are respectively The second bottom plate (42) is bent vertically downward along the two second folding lines (122) where the second top plate (32) is located, the second bottom plate (42) is bent horizontally along the second folding line (122) between the second bottom plate (42) and the fifth side plate (25) toward the fourth side plate (24) side, the sixth side plate (26) is bent vertically upward along the second folding line (122) between the second bottom plate (42) and the second top plate (32) side and is stacked on the inner side of the fourth side plate (24) to form a square tube shape, the third notch (121a) is formed on the fourth side plate (24) and the sixth side plate (26), and the fourth notch (121b) is formed on the second top plate (32).

9. The main and auxiliary combined packaging base according to claim 2, characterized in that: The vertical limiting structure comprises a fifth notch (251) provided on the fifth side plate (25) and communicating with the second clamping groove (121).

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