A combined protection plate

Abstract

This application relates to the field of packaging technology and discloses a combined protective panel, including: corner protectors and a top protector; the corner protectors include a first protector and a second protector, the first protector and the second protector are connected to adjacent sides, and the first protector and the second protector intersect along the connected sides to form an included angle; the top protector includes a first side plate, a second side plate, and an end plate, the first side plate and the second side plate are fixedly connected to the corner protectors, so that the end plate is located at the end of the corner protectors; the top protector is provided with a toothed line, and the end plate can be separated from the first side plate and the second side plate along the toothed line. This combined protective panel allows a single operator to independently complete vertical packing, thereby saving labor costs, reducing packing difficulty and workload. At the same time, the easy-to-tear toothed line facilitates tearing off the end plate of the top protector, making the combined protective panel usable for horizontal hanging of packed items, thereby improving the functionality and applicability of the combined protective panel, reducing inventory types, and reducing inventory pressure.

Description

Technical Field

[0001] This application relates to the field of packaging technology, specifically to a combined protective plate. Background Technology

[0002] Paper corner protectors, also known as edge protectors, are one of the most popular packaging products internationally. They are used to replace wooden packaging and other bulky packaging methods to protect the edges of various packaging boxes and prevent them from being worn, crushed, or damaged during logistics transportation and handling. Made from waste paper and other materials, they are characterized by low price, light weight, sturdiness, and compliance with environmental protection requirements.

[0003] Currently available simple corner protectors cannot achieve natural vertical hanging of items at the top corners. When packing items placed on pallets of a certain height or items that are already quite tall, at least two people are needed to complete the task, resulting in high labor costs and significant packing difficulty and workload. Furthermore, in typical product packing scenarios, vertical and horizontal packing often occur simultaneously, which existing corner protectors cannot adequately meet. Utility Model Content

[0004] This application provides a combined protective plate that facilitates single-person operation for vertical hanging corner protectors and is applicable to various application scenarios such as vertical hanging, horizontal packaging, and multiple size specifications.

[0005] This application provides a combined protection board, comprising: Corner guards and ceiling guards; The corner protector includes a first protector and a second protector. The first protector and the second protector are connected on adjacent sides, and the first protector and the second protector intersect along the connected sides to form an included angle. The top plate includes a first side plate, a second side plate, and an end plate. The end plate has a apex corner, and a first side and a second side adjacent to the apex corner. The first side plate is adjacent to the first side, and the second side plate is adjacent to the second side. The top plate is located at the end of the corner plate. The first side plate is fixedly connected to the first guard plate, and the second side plate is fixedly connected to the second guard plate. The end plate is located at the end of the corner plate and is perpendicular to the first guard plate and the second guard plate. The apex angle of the end plate matches the included angle. The top plate is provided with a toothed line, and the end plate can be separated from the first side plate and the second side plate along the toothed line.

[0006] In one embodiment of this application, the cutting edge includes a first cutting edge and a second cutting edge, and one end of each of the first cutting edge and the second cutting edge is connected near the apex. The toothed cutter lines are disposed on the end plate. The first toothed cutter line is adjacent to the first side and extends approximately along the first side to the edge of the end plate. The second toothed cutter line is adjacent to the second side and extends approximately along the second side to the edge of the end plate. The portion of the end plate located on the side of the first and second toothed cutter lines away from the top corner can be separated from the top plate along the first and second toothed cutter lines.

[0007] In one embodiment of this application, the first side plate and the second side plate are located outside the included angle of the corner protector plate. The first side plate and the second side plate are each provided with an adhesive area on the side surface facing the corner protector plate. The first protector plate and the first side plate, and the second protector plate and the second side plate are respectively bonded and fixed through the adhesive area.

[0008] In one embodiment of this application, the end face of the corner protector facing the end plate is fixedly connected to the surface of the end plate facing the corner protector.

[0009] In one embodiment of this application, the end plate is divided into a connecting portion and a main body portion by the first toothed line and the second toothed line. The connecting portion is located between the first toothed line and the first side and between the second toothed line and the second side. The end of the corner protector is bonded and fixed to the connecting portion. The main body portion can be separated from the connecting portion along the first toothed line and the second toothed line.

[0010] In one embodiment of this application, the end plate is triangular, and the end plate further includes a third side opposite to the apex angle, and the main body is located between the first tooth cutter line, the second tooth cutter line and the third side.

[0011] In one embodiment of this application, the cutting edge includes a first cutting edge and a second cutting edge; The first toothed cutter line is disposed on the first side plate and extends to the edge of the first side plate; the second toothed cutter line is disposed on the second side plate and extends to the edge of the second side plate. The first side plate is bonded and fixed to the first guard plate at the portion of the first toothed cutter line away from the first side edge, and the second side plate is bonded and fixed to the second guard plate at the portion of the second toothed cutter line away from the second side edge.

[0012] In one embodiment of this application, the first guard plate and the second guard plate are each provided with one or more cuts on the edge line on the side away from the included angle, and the cuts on the first guard plate and the cuts on the second guard plate are symmetrically arranged with the adjacent side of the first guard plate and the second guard plate as the axis of symmetry.

[0013] In one embodiment of this application, the plurality of cuts are evenly spaced along the length of the corner protector.

[0014] In one embodiment of this application, the first side plate, the second side plate, and the end plate are integrally cut paper protective boards folded into shape.

[0015] In one embodiment of this application, the protective top plate is an integrally formed paper protective plate, plastic protective plate, or foam protective plate.

[0016] In one embodiment of this application, the corner protector is an integrally formed yarn tube plate.

[0017] The beneficial effects of this application are: A top protector is installed at one end of the corner protector, allowing the vertically packed corner protector to be easily hung on the top of the vertical edge of the packaged item. A single operator can complete the vertical packing independently without additional manpower to assist in fixing it, thereby saving labor costs, reducing packing difficulty and workload, and shortening packing time. At the same time, an easy-tear toothed line is set on the top protector, making it easy to tear off the end plate of the top protector. This allows the combined protective plate to be used for horizontal hanging of packaged items to protect the horizontal edges of the packaged items, thereby improving the functionality and applicability of the combined protective plate, reducing the types of inventory, and reducing inventory pressure. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is an exploded structural diagram of an embodiment of the combined protective plate shown in this application; Figure 2 yes Figure 1 A three-dimensional structural diagram of the central protective roof slab from one perspective; Figure 3 yes Figure 2 Schematic diagram of the structure at point A in the diagram; Figure 4 This is a schematic diagram of the combined structure of one embodiment of the combined protection plate shown in this application; Figure 5 yes Figure 1 A three-dimensional structural diagram of the central protective roof slab from another perspective; Figure 6 yes Figure 1 A schematic diagram of the unfolded state of the central protective roof slab; Figure 7 This is a partial schematic diagram of the combined structure of another embodiment of the combined protection plate shown in this application; Figure 8 yes Figure 4 Schematic diagram of the structure at point B in the diagram; Figure 9 This is a schematic diagram of a usage scenario for the combined protection board shown in this application.

[0020] Explanation of reference numerals in the attached figures: 10. Corner guard; 11. First guard plate; 12. Second guard plate; 13. Cut; 14. Notch; 20. Top guard plate; 21. First side plate; 22. Second side plate; 23. End plate; 231. First side edge; 232. Second side edge; 233. Toothed line; 2331. First toothed line; 2332. Second toothed line; 234. Third side edge; 24. Adhesive area; 25. Connecting part; 26. Main body; 30. Carton; 31. Pallet; 32. Straps; a. Angle; b. Top corner. Detailed Implementation

[0021] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. In addition, it should be understood that the specific embodiments described herein are only for illustration and explanation of this application and are not intended to limit this application. In this application, unless otherwise stated, directional terms such as "up," "down," "left," and "right" generally refer to up, down, left, and right in the actual use or working state of the device, specifically the drawing directions in the accompanying drawings.

[0022] In this application, unless otherwise expressly specified and limited, the terms "connected," "linked," "stacked," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two elements or the interaction between two elements. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0023] Please refer to Figures 1 to 3 One embodiment of this application provides a combined protective plate, including a corner guard 10 and a top guard 20.

[0024] Specifically, the corner protector 10 includes a first protector 11 and a second protector 12. The adjacent sides of the first protector 11 and the second protector 12 are connected, and the first protector 11 and the second protector 12 intersect along their connected sides to form an included angle α. The included angle α satisfies the following range: 0° < α < 180°. The included angle α can be any value within the above angle range, such as 30°, 45°, 60°, or 90°. It can be adaptively adjusted according to the shape of the edges of the packaged items to ensure that when this combined protective plate is used, the first protector 11 and the second protector 12 of the corner protector 10 can fit snugly against the two side surfaces of the edges, improving the coverage and protection effect on the edges of the packaged items.

[0025] It should be noted that, under normal circumstances, the two sides of the edge of an item are generally perpendicular or nearly perpendicular to each other. However, when hanging items vertically, the top three surfaces of the vertical edge of the packaged item are perpendicular or nearly perpendicular to each other. Therefore, the included angle α between the first guard plate 11 and the second guard plate 12 of the corner protector 10 is generally 90° or approximately 90° to accommodate the protection of most packaged item edges on the market.

[0026] The roof support plate 20 includes a first side plate 21, a second side plate 22, and an end plate 23. The end plate 23 has a apex angle b, and a first side edge 231 and a second side edge 232 adjacent to the apex angle b. The first side plate 21 is adjacent to the first side edge 231, and the second side plate 22 is adjacent to the second side edge 232. In other words, the first side plate 21 is connected to the end plate 23 as a whole via the first side edge 231, and the second side plate 22 is connected to the end plate 23 as a whole via the second side edge 232. The first side plate 21 and the second side plate 22 are interconnected through the end plate 23 to form a single unit. When the combined protective plate is installed on the vertical edge of the packaged item, the first side plate 21, the second side plate 22 and the end plate 23 respectively fit into the three surfaces at the top corner of the vertical edge, thereby hanging the combined protective plate on the top of the vertical edge of the packaged item without the need for additional manual assistance in fixing. The first protective plate 11 and the second protective plate 12 respectively cover the two sides of the vertical edge of the packaged item, realizing the vertical hanging and protection of the vertical edge of the packaged item.

[0027] The top guard plate 20 is located at the end of the corner guard plate 10. The first side plate 21 is fixedly connected to the first guard plate 11, and the second side plate 22 is fixedly connected to the second guard plate 12. The end plate 23 is located at the end of the corner guard plate 10 and is perpendicular to the first guard plate 11 and the second guard plate 12. The apex angle b of the end plate 23 matches the included angle a. By setting the apex angle b to match the included angle a, it can be ensured that the first guard plate 11 of the corner guard plate 10 and the first side plate 21 of the top guard plate 20 are correspondingly fitted, and the second guard plate 12 and the second side plate 22 are correspondingly fitted, thereby increasing the connection area between the first guard plate 11 and the second guard plate 12 and the first side plate 21 and the second side plate 22, respectively, and ensuring that the corner guard plate 10 and the top guard plate 20 have good connection stability.

[0028] It should be noted that in this embodiment, when the first side plate 21 is connected to the first protective plate 11, the first side plate 21 is located outside the first protective plate 11, and the second side plate 22 is located outside the second protective plate 12. That is, the first protective plate 11 and the second protective plate 12 of the corner protector 10 are inserted into the space enclosed by the first side plate 21, the second side plate 22, and the end plate 23. In this way, when packing items, the first protective plate 11 and the second protective plate 12 can better fit against the two side surfaces of the edges of the packed items, preventing the first protective plate 11 and the second protective plate 12 from moving relative to the edges of the packed items, so that the corner protector 10 can provide better protection for the corners of the packed items. Of course, in other embodiments, the first side plate 21 can also be located inside the first protective plate 11, and the second side plate 22 can also be located inside the second protective plate 12, that is, the top plate 20 can be placed within the space enclosed by the first protective plate 11 and the second protective plate 12. Although placing the top plate 20 within the space enclosed by the first protective plate 11 and the second protective plate 12 can achieve the application of the combined protective plate of this application for various scenarios such as vertical hanging and horizontal packing of packaged items, compared with the assembly method of inserting the corner plate 10 into the space enclosed by the first side plate 21, the second side plate 22 and the end plate 23, there will be gaps between the first protective plate 11 and the second protective plate 12 of the corner plate 10 and the two side surfaces of the edges of the packaged items, which affects the protective effect of the combined protective plate on the edges of the packaged items.

[0029] The top plate 20 is provided with a toothed line 233, and the end plate 23 can be separated from the first side plate 21 and the second side plate 22 along the toothed line 233. The combined protective plate of this application is assembled from the corner guard plate 10 and the top plate 20 to package the edges of the packaged items. When packaging the vertical edges of the packaged items, it is not necessary to separate the end plate 23 along the toothed line 233. The end plate 23 of the top plate 20 is attached to the upper surface of the top corner of the vertical edge. When the corner guard plate 10 is inserted into the top plate 20, the first guard plate 11 and the second guard plate 12 of the corner guard plate 10 are attached to the two sides of the vertical edge, respectively. When the top plate 20 is placed inside the corner guard plate 10, the first side plate 21 and the second side plate 22 of the top plate 20 are attached to the two sides of the vertical edge, respectively. Therefore, the modular protective panel allows for vertical hanging of the vertical edges of packaged items. The panel is placed on top of the vertical edge without requiring additional manpower for securing it, allowing a single operator to pack the items along their vertical edges. In particular, when packaging items with large dimensions along their vertical edges, using the modular protective panel in a vertical hanging manner effectively solves the problem of a single operator being unable to complete the packing independently.

[0030] When packaging the transverse edges of the packaged items, the end plate 23 can be torn off along the toothed line 233, so that the combined protective plate can be used for transverse packaging to protect the transverse edges. When the corner protector 10 is inserted into the top protector 20, the distance between the first side 231 and the corresponding toothed line 233 must be less than or equal to the thickness of the first protector 11, and the distance between the second side 232 and the corresponding toothed line 233 must be less than or equal to the thickness of the second protector 12, so that the boundary after the end plate 23 is torn off does not protrude from the inner surfaces of the first protector 11 and the second protector 12, thereby preventing gaps between the first protector 11 and the second protector 12 on the side adjacent to the top protector 20 and the two side surfaces of the transverse edge; when the top protector 20 is placed into the corner protector 10, the first side 231 and the first toothed line 2331 should be kept as coincident as possible, and the second side 232 and the second toothed line 2332 should be kept as coincident as possible, so that the boundary after the end plate 23 is torn off should be kept as coincident as possible with the inner surfaces of the first side plate 21 and the second side plate 22, thereby reducing the size of the gap between the first protector 11 and the second protector 12 on the side adjacent to the top protector 20 and the two side surfaces of the transverse edge.

[0031] Therefore, it can be ensured that the combined protective plate formed by the corner protector 10 and the top protector 20 in the above two assembly methods can maintain a large area of ​​contact with the two sides of the edge of the packaged item, thereby improving the protective effect of the combined protective plate on the edge of the packaged item.

[0032] By using the above method, a top protection plate 20 is set at one end of the corner protector 10, so that the vertically packaged corner protector 10 can be easily hung on the top of the vertical edge of the packaged item. A single operator can complete the vertical packaging independently without additional manpower to assist in fixing it, thereby saving labor costs, reducing packaging difficulty and workload, and shortening packaging time. At the same time, an easy-tear toothed line 233 is set on the top protection plate 20, making it easy to tear off the end plate 23 of the top protection plate 20, so that the combined protective plate can be used for the horizontal hanging of packaged items to protect the horizontal edges of the packaged items, thereby improving the functionality and applicability of the combined protective plate, reducing the types of inventory, and reducing inventory pressure.

[0033] In one embodiment, please refer to Figures 1 to 4 The toothed cutter line 233 includes a first toothed cutter line 2331 and a second toothed cutter line 2332. One end of each of the first toothed cutter line 2331 and the second toothed cutter line 2332 is connected near the apex corner b. The first toothed cutter line 2331 extends adjacent to the first side 231 and approximately along the first side 231 to the edge of the end plate 23. The portion of the end plate 23 located on the side of the first toothed cutter line 2331 and the second toothed cutter line 2332 away from the apex corner b can be separated from the top plate 20 along the first toothed cutter line 2331 and the second toothed cutter line 2332. In this embodiment, the toothed cutter line 233 is disposed on the end plate 23. The first toothed cutter line 2331 can be used to tear off the side of the end plate 23 adjacent to the first side 231, and the second toothed cutter line 2332 can be used to tear off the side of the end plate 23 adjacent to the second side 232. When using this combination protective panel to package the lateral edges of the items, the end plate 23 can be torn off the top plate 20 to protect the lateral edges.

[0034] It should be noted that, in this embodiment, since the toothed blade line 233 is set on the end plate 23, in practical applications, the first toothed blade line 2331 and the second toothed blade line 2332 should be made as close as possible to the first side 231 and the second side 232, respectively. This is to prevent the boundary of the end plate 23 left on the top plate 20 from protruding from the inner side of the first guard plate 11 and the second guard plate 12 after the end plate 23 is torn off when the corner protector 10 is inserted into the top plate 20 and the packaged items are wrapped in the transverse edge. This is to make the gap between the first guard plate 11 and the second guard plate 12 of the corner protector 10 and the two sides of the transverse edge of the packaged items smaller, so that the corner protector 10 can better fit the two sides of the transverse edge of the packaged items.

[0035] In one embodiment, please Figure 2 Further reference Figure 4The first side plate 21 and the second side plate 22 are located outside the included angle α of the corner protector 10. Each of the surfaces of the first side plate 21 and the second side plate 22 facing the corner protector 10 has an adhesive area 24. The first protective plate 11 is bonded to the first side plate 21, and the second protective plate 12 is bonded to the second side plate 22 through the adhesive area 24. The adhesive area 24 can be a layer of adhesive applied to the surfaces of the first side plate 21 and the second side plate 22 facing the corner protector 10 (i.e., the inner surfaces of the first side plate 21 and the second side plate 22). When the corner protector 10 is inserted into the top plate 20, the outer surfaces of the first protective plate 11 and the second protective plate 12 are bonded to the first side plate 21 and the second side plate 22 through the adhesive layer.

[0036] In other embodiments, when the first side plate 21 and the second side plate 22 are located inside the included angle α of the corner guard plate 10, the adhesive area 24 can be located on the outer side of the first side plate 21 and the second side plate 22. When the top guard plate 20 is placed inside the corner guard plate 10, the inner side of the first guard plate 11 and the second guard plate 12 are bonded and fixed to the first side plate 21 and the second side plate 22 by an adhesive layer.

[0037] It should be noted that, in the two assembly methods described above, the combined protective plate formed by inserting the corner protector 10 into the top protector 20 has a larger contact area with the two sides of the edges of the packaged items when protecting the edges of the packaged items, resulting in a better fit and thus better protection for the product.

[0038] In one embodiment, please continue to refer to Figure 2 and Figure 4 The end face of the corner protector 10 facing the end plate 23 is fixedly connected to the surface of the end plate 23 facing the corner protector 10. Specifically, the end faces of the first guard plate 11 and the second guard plate 12 of the corner protector 10 facing the end plate 23 are attached to the end plate 23. An adhesive layer can be applied to the surface of the end plate 23 facing the corner protector 10 to bond and fix the end plate 23 to the end faces of the first guard plate 11 and the second guard plate 12 facing the end plate 23. This can be combined with the bonding and fixing between the first guard plate 11 and the second guard plate 12 and the first side plate 21 and the second side plate 22, respectively, to achieve a more stable connection between the corner protector 10 and the top plate 20.

[0039] In one embodiment, please Figure 2 , Figure 4 Further reference Figure 5The end plate 23 is divided into a connecting portion 25 and a main body portion 26 by the first toothed line 2331 and the second toothed line 2332. The connecting portion 25 is located between the first toothed line 2331 and the first side 231, and between the second toothed line 2332 and the second side 232. The end of the corner guard 10 is bonded and fixed to the connecting portion 25. The main body portion 26 can be separated from the connecting portion 25 along the first toothed line 2331 and the second toothed line 2332. Specifically, the connecting portion 25 is roughly divided into two parts. One part of the connecting portion 25 is located between the first side 231 and the first toothed line 2331, and the width of this part of the connecting portion 25 is roughly the same as the thickness of the first guard plate 11. The other part of the connecting portion 25 is located between the second side 232 and the second toothed line 2332, and the width of this part of the connecting portion 25 is roughly the same as the thickness of the second guard plate 12. When the combined protective plate adopts the assembly form of corner protectors 10 inserted into the top protector 20, after the two connecting parts 25 are glued and fixed to the first protective plate 11 and the second protective plate 12 respectively, after the main body 26 is torn off along the first toothed line 2331 and the second toothed line 2332, the sides of the remaining two connecting parts 25 of the end plate 23 can be kept as close as possible to the inner sides of the first protective plate 11 and the second protective plate 12 respectively. When packaging the transverse edges of the packaged items, the first protective plate 11, the second protective plate 12 and the two connecting parts 25 can keep a large contact area with the two sides of the transverse edges, thereby improving the covering and protection effect on the edges of the packaged items.

[0040] In one embodiment, please further refer to Figure 6 The end plate 23 is triangular and includes a third side 234 opposite to the apex angle b. The main body 26 is located between the first tooth cutter line 2331, the second tooth cutter line 2332, and the third side 234. Specifically, depending on the angle value of the apex angle b, the end plate 23 can be an acute triangle, a right triangle, or an obtuse triangle. The main body 26 is a triangle of the same type as the end plate 23. That is, when the end plate 23 is an acute triangle, the main body 26 is an acute triangle; when the end plate 23 is a right triangle, the main body 26 is a right triangle; and when the end plate 23 is an obtuse triangle, the main body 26 is an obtuse triangle.

[0041] In one embodiment, please refer to Figure 7 The toothed cutter line 233 includes a first toothed cutter line 2331 and a second toothed cutter line 2332.

[0042] The first toothed cutter line 2331 is located on the first side panel 21 and extends to the edge of the first side panel 21, allowing the portion of the first side panel 21 near the top panel 20 and the end panel 23 to be torn off along the first toothed cutter line 2331. The second toothed cutter line 2332 is located on the second side panel 22 and extends to the edge of the second side panel 22, allowing the portion of the second side panel 22 near the top panel 20 and the end panel 23 to be torn off along the second toothed cutter line 2332. Thus, when using this combined protective panel to wrap the transverse edges of packaged items, the portion of the top panel 20 near the end panel 23 and the end panel 23 can be torn off along the first toothed cutter line 2331 and the second toothed cutter line 2332, leaving the combined protective panel with the entire corner protector 10 and portions of the first side panels 21 and the second side panels 22 of the top panel 20 intact. The first protective panel 11 and the second protective panel 12 can cover and protect both sides of the transverse edges of the packaged items.

[0043] In practical applications, when the adjacent edges of the first side plate 21 and the second side plate 22 are connected, the ends of the first toothed cutter line 2331 and the second toothed cutter line 2332 closest to the apex b are directly connected. When the adjacent edges of the first side plate 21 and the second side plate 22 are not connected, the extensions of the ends of the first toothed cutter line 2331 and the second toothed cutter line 2332 closest to the apex b are connected.

[0044] The first side plate 21 is bonded and fixed to the first protective plate 11 at the portion of the first toothed line 2331 away from the first side edge 231, and the second side plate 22 is bonded and fixed to the second protective plate 12 at the portion of the second toothed line 2332 away from the second side edge 232. Therefore, it does not affect the removal of the end plate 23 along the toothed line 233, and the entire end plate 23 can be removed, making it more convenient to use the corner protector 10 for horizontal packaging.

[0045] It should be noted that in this embodiment, the first toothed cutter line 2331 and the second toothed cutter line 233 are provided on the first side plate 21 and the second side plate 22. In practical applications, the positions of the first toothed cutter line 2331 and the second toothed cutter line 2332 on the first side plate 21 and the second side plate 22 are not particularly limited. It is only necessary to ensure that the first side plate 21 and the second side plate 22 have a sufficiently large bonding area with the first guard plate 11 and the second guard plate 12, respectively, so as to ensure that the top guard plate 20 and the corner guard plate 10 have good connection strength.

[0046] When packing items such as those on pallet 31, various sizes of protective packaging boards are often required. This is especially true when there are differences in the long and short sides of the items on pallet 31, or when packing items that are not fully loaded or in small order quantities on pallet 31, requiring smaller protective packaging boards. Currently, for high-strength protective packaging boards, cutting tools are used to cut them to the required shorter lengths. However, this method is complex and requires additional cutting tools. For lower-strength protective packaging boards, they are generally broken manually, but this method may result in poor control over the size and appearance of the protective packaging boards.

[0047] To solve the above problem, please... Figure 4 Further reference Figure 8 and Figure 9 The first protective plate 11 and the second protective plate 12 each have one or more cuts 13 on their edges facing away from the included angle α. The positions of the cuts 13 on the first protective plate 11 and the second protective plate 12 are symmetrically arranged about the adjacent sides of the first and second protective plates 11 and 12. Specifically, the cuts 13 can be grooves extending from the two edges of the corner protector 10 to the adjacent lines of the first and second protective plates 11 and 12 where the apex of the included angle α is located. Thus, by symmetrically setting the cuts 13 on both sides of the first and second protective plates 11 and 12, an easy-break opening is formed on the corner protector 10. The corner protector 10 can be broken through the easy-break opening, making it convenient to adjust the overall length of the combined protective plate according to the size of the packaged items such as the pallet 31. The operation is convenient, and there is no need to use additional cutting tools to cut the combined protective plate. It also allows for better control of the size and appearance of the combined protective plate, making the combined protective plate more practical.

[0048] In one embodiment, please continue to refer to Figure 1 , Figure 4 , Figure 7 Multiple cuts 13 are evenly spaced along the length of the corner protector 10. By setting multiple cuts 13, the cut 13 closest to the size of the packaged item can be selected to break the corner protector 10, so that the overall size of the combined protective plate is as consistent as possible with the size of the packaged item, thereby further improving the applicability and practicality of the combined protective plate.

[0049] In one embodiment, please continue to refer to Figure 6 The first side panel 21, the second side panel 22, and the end panel 23 are formed by folding a paper protective board cut as a single piece. Specifically, it can be cut along both sides and the top edge of the first side panel 21, the top edge, the bottom edge and one side edge of the second side panel 22, and the third side edge 234. After cutting, the first side panel 21 is bent along the first side edge 231, and the second side panel 22 is bent along the second side edge 232 to form a shape as shown. Figure 2The structure of the top cover 20 shown is made by folding a paper cover that has been cut in one piece, which makes the top cover 20 have stronger integrity and higher strength, and improves the protective performance of the combined protective plate when in use.

[0050] It should be noted that, please refer to Figure 2 , Figure 3 and Figure 5 , Figure 6 After cutting out Figure 6 When the top plate 20 is shown, an additional notch 14 needs to be cut at the top corner b of the end plate 23. Thus, when bending the first side plate 21 and the second side plate 22, the presence of the notch 14 can prevent the adjacent sides of the first side plate 21 and the second side plate 22 from interfering with each other and hindering the folding of the first side plate 21 and the second side plate 22. At the same time, when assembling the combined protective plate, it also helps the first guard plate 11 and the second guard plate 12 of the corner guard plate 10 to better fit with the inner side of the first side plate 21, the second side plate 22 and the end plate 23 of the top plate 20.

[0051] In one embodiment, the top cover 20 can be a one-piece molded paper cover, plastic cover, or foam cover. Therefore, by making the top cover 20 a paper cover, plastic cover, or foam cover, it is easier to manually separate the end plate 23 along the toothed cutter line 233, reducing the difficulty of separating the end plate 23 and simplifying the operation. Of course, the top cover 20 can also be made of other easily breakable materials, all of which are covered within the scope of this application and are not limited thereto.

[0052] In one embodiment, the corner protector 10 can be a one-piece molded yarn tube board. Because the yarn tube board has high strength, high stiffness and environmental friendliness, the corner protector 10 made of the yarn tube board can be held by hand during the process of hanging packaged items placed on a pallet 31 of a certain height or packaged items with a large height along the vertical edge, which is convenient for installation. At the same time, the material is environmentally friendly and will not cause pollution to the environment.

[0053] In practical applications, please refer to Figures 1 to 4 as well as Figure 9When the packaged item is a cardboard box 30, the cardboard boxes 30 are stacked on the pallet 31 in sequence. When the combined protective plate of this application is used to package the vertical edge of the cardboard box 30, it is not necessary to separate the end plate 23 along the first toothed blade line 2331 and the second toothed blade line 2332. The end plate 23 of the top plate 20 of the combined protective plate is attached to the surface of the top of the vertical edge, so that the corner protector 10 is placed along the vertical edge, thereby realizing the vertical hanging of the combined protective plate. Meanwhile, when using the combined protective plate of this application to package the transverse edges of the carton 30, the end plate 23 can be torn off along the first toothed blade line 2331 and the second toothed blade line 2332. According to the length of the edge of the carton 30, the corresponding cuts 13 on the first protective plate 11 and the second protective plate 12 are selected and broken off, so that the overall length of the combined protective plate is adapted to the length of the edge of the carton 30. The corner protector 10 is placed along the transverse edge of the carton 30, thereby installing the combined protective plate on the transverse edge of the carton 30. Subsequently, the operator can use the straps 32 to tie the carton 30 after it has been packaged with the combined protective plate, thereby achieving the packaging and fixing of the carton 30 on the pallet 31 and improving the stability of the carton 30 during transportation.

[0054] Therefore, the combined protective plate in this application not only protects the edges of various packaged items, such as cardboard boxes 30, preventing wear, compression, or damage caused by impact or friction during logistics transportation and handling, thus improving the safety and stability of item stacking, but also allows for vertical and horizontal hanging of packaged item edges, and is adaptable to packaging of various sizes and specifications of packaged items. This combined protective plate is simple to operate, easy to manufacture and process, and has a wide range of applications in packaging, offering good economic benefits and market application prospects.

[0055] Therefore, by using the combined protective plate of this application, only one type of protective plate is needed for both vertical hanging and horizontal packaging. Different types of protective plates are not required, which can reduce the variety of inventory and reduce inventory pressure.

[0056] The combined protection board provided in this application has been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A combination protective panel, characterized by, include: Corner guards and ceiling guards; The corner protector includes a first protector and a second protector. The first protector and the second protector are connected on adjacent sides, and the first protector and the second protector intersect along the connected sides to form an included angle. The top plate includes a first side plate, a second side plate, and an end plate. The end plate has a apex corner, and a first side and a second side adjacent to the apex corner. The first side plate is adjacent to the first side, and the second side plate is adjacent to the second side. The top plate is located at the end of the corner plate. The first side plate is fixedly connected to the first guard plate, and the second side plate is fixedly connected to the second guard plate. The end plate is located at the end of the corner plate and is perpendicular to the first guard plate and the second guard plate. The apex angle of the end plate matches the included angle. The top plate is provided with a toothed line, and the end plate can be separated from the first side plate and the second side plate along the toothed line.

2. The combined protection plate according to claim 1, characterized in that, The cutting edge includes a first cutting edge and a second cutting edge, and one end of the first cutting edge and the second cutting edge are connected near the apex. The cutting edge is disposed on the end plate. The first cutting edge is adjacent to the first side and extends approximately along the first side to the edge of the end plate. The second cutting edge is adjacent to the second side and extends approximately along the second side to the edge of the end plate. The portion of the end plate located on the side opposite to the apex angle along the first and second toothed lines can be separated from the top plate.

3. The combination protective sheet according to claim 1, wherein The first side plate and the second side plate are located outside the included angle of the corner protector. The first side plate and the second side plate are each provided with an adhesive area on the side surface facing the corner protector. The first protector and the first side plate, and the second protector and the second side plate are respectively bonded and fixed through the adhesive area.

4. The combined protection plate according to claim 2, characterized in that, The end face of the corner protector facing the end plate is fixedly connected to the surface of the end plate facing the corner protector.

5. The combined protection plate according to claim 4, characterized in that, The end plate is divided into a connecting part and a main body part by the first toothed line and the second toothed line. The connecting part is located between the first toothed line and the first side and between the second toothed line and the second side. The end of the corner guard is bonded and fixed to the connecting part. The main body part can be separated from the connecting part along the first toothed line and the second toothed line.

6. The combined protection plate according to claim 5, characterized in that, The end plate is triangular, and the end plate also includes a third side opposite to the apex angle. The main body is located between the first tooth cutter line, the second tooth cutter line, and the third side.

7. The combined protection plate according to claim 1, characterized in that, The cutting edge includes a first cutting edge and a second cutting edge; The first toothed cutter line is disposed on the first side plate and extends to the edge of the first side plate; the second toothed cutter line is disposed on the second side plate and extends to the edge of the second side plate. The first side plate is bonded and fixed to the first guard plate at the portion of the first toothed cutter line away from the first side edge, and the second side plate is bonded and fixed to the second guard plate at the portion of the second toothed cutter line away from the second side edge.

8. The combined protection plate according to claim 1, characterized in that, The first and second protective plates each have one or more cuts on the edge line on the side away from the included angle. The cuts on the first protective plate and the cuts on the second protective plate are arranged symmetrically about the side of the first and second protective plates that are adjacent to each other.

9. The combined protection plate according to claim 8, characterized in that, The multiple cuts are evenly spaced along the length of the corner protector.

10. The combined protection plate according to claim 1, characterized in that, The first side plate, the second side plate, and the end plate are folded from a single piece of paper protective board.

11. The combined protection plate according to claim 1, characterized in that, The top cover is a one-piece molded paper cover, plastic cover, or foam cover.

12. The combined protection plate according to claim 1, characterized in that, The corner protector is a one-piece molded yarn tube plate.

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