Corrugated carton capable of improving central loading capacity

Abstract

The utility model relates to a corrugated carton capable of improving central loading capacity, which comprises a carton body, the upper ends of four side walls of the carton are respectively and fixedly connected with a sealing cover, the sealing cover connected with the width edge of the carton is a sealing cover I, the sealing cover connected with the length edge of the carton is a sealing cover II, the sealing cover I is positioned below the sealing cover II, and meanwhile, the sealing cover I is positioned below the sealing cover II. A supporting plate made of hard materials is further arranged in the carton and located between the two sealing covers I. When the lower end faces of the sealing covers I abut against the supporting plate, the included angle between the lower end faces of the sealing covers I and the horizontal plane is zero, and therefore the close ends of the two sealing covers I can be supported through the supporting plate, the sealing covers I can be effectively prevented from deforming and being embedded into the carton, and the sealing effect is improved. Therefore, the central loading capacity of the carton is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of corrugated paper boxes, in particular to a corrugated paper box with improved central pressure bearing capacity. Background Art

[0002] Corrugated paperboard is a common and widely used packaging product, which has penetrated into every aspect of our daily life. Because of its extremely wide range of applications, its usage has always been at the forefront of various packaging products.

[0003] In order to facilitate the placement of items, the upper end of the existing corrugated cardboard is generally set to an open structure in the initial state. After the items are placed, multiple covers are stacked and matched, and the covers are limited by tape to complete the sealing work of the upper end of the carton.

[0004] Therefore, in actual use, although the adhesive effect of the tape allows the covers to limit each other and provide a certain degree of deformation resistance, when the covers are subjected to downward impact force, especially between adjacent covers, that is, when the middle section of the carton is subjected to downward impact, since the support position of the cover is located away from the adjacent cover, the cover will inevitably undergo a significant deformation.

[0005] Therefore, we believe that there is a need for a corrugated box that can resist the impact force on the middle section of the box and protect the box from deformation. Summary of the invention

[0006] In view of the deficiencies in the prior art, the utility model proposes a corrugated paper box with improved central pressure bearing capacity, which has the advantage of resisting the impact force exerted on the middle section of the paper box, and solves the problem that the paper box will inevitably produce a large degree of deformation when the middle section of the paper box is subjected to impact force.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A corrugated paper box with improved central pressure bearing capacity comprises a paper box body, wherein the upper ends of the four side walls of the paper box are respectively fixedly connected with a cover, wherein the cover connected to the width side of the paper box is cover I, and the cover connected to the length side of the paper box is cover II, cover I is located below cover II, a support plate made of hard material is arranged inside the paper box, the support plate is located between the two covers I, and when the lower end surface of cover I abuts against the support plate, the angle between the lower end surface of cover I and the horizontal plane is zero, a support member is respectively arranged near the end of the two length side side walls of the paper box, and the two ends of the support plate are movably connected to the two support members.

[0009] Preferably, each of the support members includes a positioning section, and an auxiliary support section is fixedly connected to each side of the positioning section. The height of the upper end surface of the positioning section is less than that of the upper end surface of the auxiliary support section, and the height of the lower end surface of the positioning section is equal to that of the lower end surface of the auxiliary support section.

[0010] Preferably, mounting grooves are respectively formed at both ends of the support plate, and the upper end of the positioning section is embedded in the mounting groove.

[0011] Preferably, the support plate comprises a fitting member I and a fitting member II, a mounting groove is respectively provided at the distal end of the fitting member I and the fitting member II, and the proximal end of the fitting member I and the fitting member II are nested and slidably connected.

[0012] Preferably, the maximum width of the support plate is greater than the width of the cover I, and the two support members are arranged opposite to each other along the length direction of the support plate.

[0013] Preferably, the support member is projected into a wavy linear structure on a vertical plane, and the support member and the matching member I and the matching member II are all formed by bending in one piece.

[0014] Preferably, a limiting plate made of corrugated cardboard is respectively provided at the proximal end of the two supporting members, and the limiting plate is movably connected to the inner wall of the carton.

[0015] Preferably, each of the limit plates has a U-shaped cross section, and a plurality of plug-in boards arranged up and down and having a trapezoidal cross section are fixedly connected at both ends of each limit plate, and slots are provided on the side walls of the support box along the length of the plug-in boards.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] The utility model arranges a support plate below the two cover plates I and supports the two cover plates I near the ends, which can effectively prevent the cover plates I from deforming and embedding into the carton, thereby improving the pressure bearing capacity of the center of the carton.

[0018] The utility model embeds a support member in the carton, which can not only provide high support to the support plate, but also improve the impact resistance of the side wall of the carton by fitting the support member to the inner wall of the carton. Moreover, the upper end of the support member can also support the cover I, thereby preventing the cover I from twisting and deforming. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the cooperation between the support plate and the support member of the utility model;

[0021] Figure 3 This is a schematic diagram of the connection between the matching piece Ⅰ and the matching piece Ⅱ of the utility model.

[0022] In the figure: 1. Carton; 2. Cover I; 3. Cover II; 4. Support plate; 401. Mounting slot; 402. Matching piece I; 403. Matching piece II; 5. Support piece; 501. Auxiliary support section; 502. Positioning section; 6. Limiting plate; 7. Slot; 8. Plug-in board. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0025] Please refer to Figure 1-3 A corrugated paper box with improved central pressure bearing capacity includes a paper box 1 body, which is consistent with a traditional paper box 1. The paper box 1 in the device includes four side walls of a rectangular structure in the overall unfolded view, and the four side walls are connected end to end to form the main structure of the paper box 1.

[0026] Each side wall is fixedly connected to a cover at both ends, and the covers at both ends are stacked to cover the upper and lower openings of the carton 1. At this time, the side wall and the cover together form a complete closed corrugated carton 1.

[0027] Specifically, the cover connected to the width side of the carton 1 is limited to be cover I2, and the cover connected to the length side of the carton 1 is limited to be cover II3. By constraining cover I2 to be located below cover II3, the purpose of stacking cover I2 and cover II3 is achieved.

[0028] At the same time, in this case, since cover I2 is shorter, its overall structure is closer to a cube, and therefore, its ability to resist deformation is stronger. At this time, cover I2 can provide a certain supporting force for cover II3 to prevent the carton 1 from twisting and deforming when it is subjected to downward pressure.

[0029] It should be noted that, in actual use, carton 1 is mainly used to store items for easy stacking, and the structural characteristics of carton 1 itself (the four side walls influence each other) determine that carton 1 has a strong ability to resist side impacts. However, no matter whether it is cover Ⅰ2 or cover Ⅱ3, only one end is fixedly connected to the side wall of carton 1, and the side wall of carton 1 can only provide upward support for one end of the cover. At this time, when the upper end of carton 1 is subjected to downward pressure, especially when the middle part of the upper end of carton 1 is subjected to downward pressure, the part of the cover that is not fixedly connected to the side wall is very likely to twist and deform, thereby causing the cover to be embedded in carton 1, and losing the function of the cover to support the structure of carton 1.

[0030] Therefore, when the upper end of the carton 1, especially the middle part of the upper end of the carton 1, is susceptible to additional impact force, in order to give full play to the protective effect of the carton 1 and prevent the carton 1 from deforming, it is necessary to set additional support points at the lower ends of the two covers Ⅰ2 to prevent the covers Ⅰ2 from deforming and embedding into the carton 1.

[0031] Specifically, the device is provided with a support plate 4 at the lower end of the two covers Ⅰ2, and the position of the support plate 4 is limited by the movably connected support plate 4 and the carton 1. At this time, when the lower end surface of the cover Ⅰ2 abuts against the support plate 4, the angle between the lower end surface of the cover Ⅰ2 and the horizontal plane is zero, that is, the cover Ⅰ2 can maintain a horizontal state at this time, thereby maximizing the supporting effect of the cover Ⅰ2 on the cover Ⅱ3 under the expected state.

[0032] Specifically, the device is provided with a support member 5 near the end of the two length side walls of the carton 1, and the support plate 4 is placed above the support member 5 by constraining the height of the middle section of the support member 5. When the height of the support plate 4 is limited by the support member 5, the cover Ⅰ2 abuts against the support plate 4 to maintain a level.

[0033] It should be noted that the support plate 4 is made of a hard material, and the support plate 4 can be made of iron or hard plastic material, so as to meet the supporting effect for the cover Ⅰ2.

[0034] At the same time, in order to ensure that the support plate 4 can provide sufficient support for the cover Ⅰ2, the present device constrains the maximum width of the support plate 4 to be greater than the width of the cover Ⅰ2. This enables the support plate 4 to provide support for at least multiple areas at the lower ends of the two covers Ⅰ2, thereby preventing the middle section of the cover Ⅰ2 from being deformed by impact.

[0035] It should be noted that, in practice, the lower end of the support plate 4 is subjected to the upward support force of the support member 5, and the upper end of the support plate 4 is subjected to the downward pressure of the cover Ⅰ2. The mutual influence of these two forces can, to a certain extent, hinder the relative position movement of the support plate 4 in the horizontal direction, thereby giving full play to the supporting effect of the support plate 4 on the two covers Ⅰ2 away from the corresponding side wall end.

[0036] Furthermore, in order to enhance the stability of the connection between the support member 5 and the support plate 4 so that the support plate 4 can maintain its position and not change arbitrarily during the packaging process (before the cover Ⅰ2 abuts against the support plate 4), the device is provided with a mounting groove 401 at both ends of the support plate 4, and the support member 5 and the support plate 4 are embedded in the mounting groove 401 at corresponding positions to achieve the purpose of further enhancing the stability of the connection between the support plate 4 and the support member 5.

[0037] Furthermore, in order to give full play to the supporting effect of the support member 5 on the support plate 4, the device is respectively provided with a limit plate 6 near the end of the two support members 5, and the position of the support member 5 is constrained by movably connecting the limit plate 6 with the inner wall of the carton 1, thereby ensuring that the position of the middle section of the support member 5 cannot change, so that the support plate 4 can remain stable during use.

[0038] Specifically, the cross-section of the limit plate 6 of the present device is a U-shaped structure, which can increase the contact area between the limit plate 6 and the inner wall of the carton 1, and utilize a larger friction force to ensure that the relative position of the limit plate 6 does not change, thereby enhancing the position constraint effect of the limit plate 6 on the support member 5.

[0039] Furthermore, the device has a plurality of upper and lower plug-in plates 8 fixedly connected to both ends of each limit plate 6, and a slot 7 is provided on the side wall of the carton 1 for the plug-in plate 8. At this time, the position constraint of the limit plate 6 can be fully achieved by embedding the plug-in plate 8 into the slot 7.

[0040] Specifically, as shown in the figure, the limiting plate 6 is made of corrugated cardboard, and the plug-in plate 8 is produced by cutting and bending the limiting plate 6, which can effectively reduce the processing cost.

[0041] Furthermore, the cross section of the constraint plug board 8 is a trapezoidal structure, and the width of the plug board 8 at one end close to the limiting plate 6 is greater than the width of the plug board 8 at one end away from the limiting plate 6 , which can facilitate the insertion of the plug board 8 into the slot 7 .

[0042] Furthermore, the middle section of the limiting support member 5 of the device is a positioning section 502, and the positioning section 502 is projected into an N-shaped structure on the vertical plane. This allows the lower end of the positioning section 502 to abut against the inner wall of the lower end of the carton 1, thereby fully ensuring the supporting effect of the support plate 4.

[0043] At the same time, the two ends of the positioning section 502 are limited by the auxiliary support section 501, and the projection of the auxiliary support section 501 on the vertical plane is also an N-shaped structure. At this time, the height of the upper end surface of the auxiliary support section 501 is constrained so that the height of the upper end surface of the auxiliary support section 501 can be greater than the height of the upper end surface of the positioning section 502. At this time, when the cover I2 abuts against the support plate 4, the lower end surface of the cover I2 can abut against the auxiliary support section 501 at the same time. At this time, the auxiliary support section 501 can also support the cover I2, further preventing the cover I2 from being deformed by external force.

[0044] Therefore, it should be noted that the support member 5 as a whole can be as shown in the figure, and the support member 5 is projected into a wavy line structure on the vertical plane. At this time, the support member 5 can be formed by integrated bending, which reduces the processing steps and thus reduces the processing cost.

[0045] It should be noted that the device does not limit the material of the support member 5 , and the support member 5 may also be made of corrugated cardboard or hard material.

[0046] Furthermore, as shown in the figure, the support plate 4 is formed by bending an iron plate. At this time, in order to reduce processing costs and increase the adaptability range, the device limits the support plate 4 to a two-section structure, and the support plate 4 is composed of a matching piece Ⅰ402 and a matching piece Ⅱ403.

[0047] Specifically, the fitting member I 402 and the fitting member II 403 are nested and slidably connected, and a mounting groove 401 is respectively provided at the far end of the fitting member I 402 and the fitting member II 403 to correspond to the two support members 5 .

[0048] Specifically, the matching piece I 402 and the matching piece II 403 are integrally bent and formed, thereby reducing the number of operation steps and lowering the processing cost.

[0049] In actual use, the utility model:

[0050] First, the operator inserts the support members 5 into the support box respectively, ensuring that the two ends of the support members 5 are in contact with the inner side of the length side wall of the carton 1;

[0051] Then, the operator inserts the limit plate 6 into the support box to ensure that the U-shaped openings of the two limit plates 6 are opposite to each other. At this time, the plug-in board 8 is inserted into the slot 7 at the corresponding position in sequence. At this time, the limit plate 6 is in contact with the support member 5;

[0052] Finally, the matching piece I 402 and the matching piece II 403 are assembled into a support plate 4 , and the two support pieces 5 are inserted into the two installation grooves 401 .

[0053] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A corrugated paper box with improved center pressure bearing capacity, characterized in that: The invention comprises a carton (1) body, wherein the upper ends of the four side walls of the carton (1) are respectively fixedly connected with a cover, wherein the cover connected to the width side of the carton (1) is cover I (2), and the cover connected to the length side of the carton (1) is cover II (3), and cover I (2) is located below cover II (3); A support plate (4) made of a hard material is arranged inside the carton (1), the support plate (4) is located between the two covers I (2), and when the lower end surface of the cover I (2) abuts against the support plate (4), the angle between the lower end surface of the cover I (2) and the horizontal plane is zero; A support member (5) is respectively provided near the end of the two longitudinal side walls of the carton (1), and the two ends of the support plate (4) are movably connected to the two support members (5).

2. A corrugated paper box with improved center pressure bearing capacity according to claim 1, characterized in that: Each of the support members (5) comprises a positioning section (502), and an auxiliary support section (501) is fixedly connected to each of the two sides of the positioning section (502), the height of the upper end surface of the positioning section (502) is less than the height of the upper end surface of the auxiliary support section (501), and the height of the lower end surface of the positioning section (502) is equal to the height of the lower end surface of the auxiliary support section (501).

3. A corrugated paper box with improved center pressure bearing capacity according to claim 2, characterized in that: The support plate (4) is provided with mounting grooves (401) at both ends, and the upper end of the positioning section (502) is embedded in the mounting groove (401).

4. A corrugated paper box with improved center pressure bearing capacity according to claim 3, characterized in that: The support plate (4) comprises a fitting part I (402) and a fitting part II (403), wherein the fitting part I (402) and the fitting part II (403) are respectively provided with a mounting groove (401) at their distal ends, and the fitting part I (402) and the fitting part II (403) are nested and slidably connected at their proximal ends.

5. A corrugated paper box with improved center pressure bearing capacity according to claim 4, characterized in that: The maximum width of the support plate (4) is greater than the width of the cover I (2), and the two support members (5) are arranged opposite to each other along the length direction of the support plate (4).

6. A corrugated paper box with improved center pressure bearing capacity according to claim 4, characterized in that: The support member (5) is projected into a wavy linear structure on a vertical plane, and the support member (5) and the matching member I (402) and the matching member II (403) are all formed by bending in one piece.

7. A corrugated paper box with improved center pressure bearing capacity according to claim 1, characterized in that: A limiting plate (6) made of corrugated cardboard is respectively arranged near the end of the two supporting members (5), and the limiting plate (6) is movably connected to the inner wall of the carton (1).

8. A corrugated paper box with improved center pressure bearing capacity according to claim 7, characterized in that: Each of the limit plates (6) has a U-shaped cross section, and a plurality of plug-in boards (8) arranged up and down and having a trapezoidal cross section are fixedly connected at both ends of each limit plate (6), and slots (7) are provided on the side walls of the support box along the length of the plug-in boards (8).

Images