Foldable paperboard angle bead
By using specific folding components and limiting sleeves designed for corrugated cardboard, the problems of complex and loose folding of foldable cardboard corner protectors are solved, achieving fast and effective protection of items.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-13
- Publication Date
- 2026-04-07
AI Technical Summary
Conventional foldable cardboard corner protectors have a complex folding method and are prone to loosening after folding, which affects their protective effect.
Using a corrugated cardboard design, it achieves quick folding and fixation of the folded state through a specific combination of folding components and the use of retaining sleeves, including the longitudinal and transverse folding of folding components one, two, three and four, and preventing loosening through retaining sleeves.
It enables quick and easy folding operations and effectively prevents the cardboard corner protectors from loosening, thus improving the protection of the edges and corners of items.
Smart Images
Figure CN224090653U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of packaging corner protector technology, and in particular to foldable cardboard corner protectors. Background Technology
[0002] Foldable cardboard corner protectors are an environmentally friendly packaging material used to protect the corners of products. They are made of multiple layers of kraft paper or corrugated paper and are designed with pre-pressed creases to achieve folding function, making them easy to store and transport. When in use, they unfold to wrap the corners of the items, providing protection against impact, pressure, and scratches.
[0003] In the existing use of foldable cardboard corner protectors, the cardboard is usually folded along predetermined creases to form a right angle to protect the corners of the transported items. However, the conventional folding method of foldable cardboard corner protectors is relatively complicated and cannot be folded quickly. Furthermore, the folded part is not limited and fixed after folding, which can easily lead to the cardboard corner protector becoming loose after folding, affecting the folding effect and thus the protective effect on the items. Summary of the Invention
[0004] In view of this, the present invention provides foldable cardboard corner protectors, the main technical problem to be solved is that conventional foldable cardboard corner protectors are relatively complicated to fold and are prone to loosening after folding.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a foldable cardboard corner protector, comprising a cardboard body, wherein the cardboard body is corrugated cardboard, the cardboard body comprising folding component one, folding component two, folding component three and folding component four, wherein folding component one and folding component three can be folded longitudinally together with folding component two and folding component four, wherein folding component one and folding component two can be folded laterally, wherein folding component three and folding component four can be folded laterally, wherein folding component one and folding component two can be folded laterally together with folding component three and folding component four, and wherein limiting sleeves are fitted at both ends of the outer wall of the cardboard body after folding.
[0006] By adopting the above technical solution, the cardboard body can be quickly folded and the edges of the item can be protected by first folding folding components two and four together with folding components one and three longitudinally, then folding folding components one and two longitudinally, and folding components three and four longitudinally. Then, two limiting sleeves are put on the outer walls of folding components one and two and folding components three and four after folding to prevent them from loosening after folding. Finally, folding components one and two together with folding components three and four longitudinally is folded so that folding components one and two together form a near right angle with folding components three and four.
[0007] As a further description of the above technical solution: the interior of the cardboard body is provided with folding area one, folding area two, folding area three and folding area four, folding area one is arranged horizontally, and folding areas two, three and four are arranged vertically.
[0008] By adopting the above technical solution, folding area one, folding area two, folding area three and folding area four assist in the folding work, and the cardboard body is corrugated cardboard, so folding area one, folding area two, folding area three and folding area four can all be stretched.
[0009] As a further description of the above technical solution: the folding component one and folding component three as a whole, together with the folding component two and folding component four as a whole, can be folded longitudinally along folding area one, and the folding component one and folding component two as a whole, together with the folding component three and folding component four as a whole, can be folded laterally along folding area three.
[0010] By adopting the above technical solution, folding component one and folding component three as a whole are folded longitudinally along folding area one along folding area two and folding component four as a whole, and folding component one and folding component two as a whole are folded laterally along folding area three.
[0011] As a further description of the above technical solution: the folding component one includes folding block one and folding block two, and folding block one and folding block two can be folded laterally along folding area two.
[0012] By adopting the above technical solution, folding block one and folding block two are folded laterally along folding area two, and the length of folding block two after folding is less than the length of folding block one.
[0013] As a further description of the above technical solution: the folding component two includes folding block three and folding block four, which can be folded laterally along the folding area two.
[0014] By adopting the above technical solution, folding block three and folding block four are folded horizontally along folding area two, and the length of folding block four after folding is less than the length of folding block three.
[0015] As a further description of the above technical solution: the folding component three includes folding block five and folding block six, which can be folded laterally along the folding area four.
[0016] By adopting the above technical solution, folding block five and folding block six are folded horizontally along folding area four, and the length of folding block six after folding is less than the length of folding block five.
[0017] As a further description of the above technical solution: the folding component four includes folding block seven and folding block eight, which can be folded laterally along the folding area four.
[0018] By adopting the above technical solution, folding block seven and folding block eight are folded horizontally along folding area four, and the length of folding block eight after folding is less than the length of folding block seven.
[0019] As a further description of the above technical solution: one of the limiting sleeves is fitted onto the outer walls of the folded folding components one and two after folding, and the other limiting sleeve is fitted onto the outer walls of the folded folding components three and four after folding.
[0020] By adopting the above technical solution, one limiting sleeve is fitted on the outer wall of the folded blocks 1, 2, 3 and 4 after folding, and another limiting sleeve is fitted on the outer wall of the folded blocks 5, 6, 7 and 8 after folding.
[0021] By employing the above technical solution, the foldable cardboard corner protector of this utility model has at least the following beneficial effects:
[0022] Compared with existing technologies, this foldable cardboard corner protector firstly folds folding components two and four longitudinally together with folding components one and three, then folds folding components one and two longitudinally together, and folding components three and four longitudinally together. Next, two limiting sleeves are placed on the outer walls of folding components one and two, and folding components three and four, to prevent them from loosening after folding. Finally, folding components one and two longitudinally together with folding components three and four forms a near-right angle, allowing for quick folding of the cardboard body and protection of the corners of items.
[0023] Compared with existing technologies, this foldable cardboard corner protector is folded longitudinally by folding folding blocks 1 and 3 as a whole, and folding blocks 2 and 4 as a whole in folding area 1. Folding blocks 2 and 4 as a whole, and folding blocks 1 and 3 as a whole in folding area 2 are folded laterally. Folding blocks 5, 7, 6 and 8 as a whole in folding area 4 are folded laterally. Folding blocks 1, 2, 3 and 4 as a whole in folding area 3 are folded laterally. The cardboard body is made of corrugated cardboard, which can be stretched laterally by 5-10% during the folding process. Therefore, folding areas 2, 3 and 4 can be stretched laterally during the folding process, which facilitates quick folding operations. Attached Figure Description
[0024] Figure 1 This is a structural diagram of the cardboard body of the foldable cardboard corner protector proposed in this utility model;
[0025] Figure 2 This is a first folding structure diagram of the foldable cardboard corner protector proposed in this utility model;
[0026] Figure 3 This is a second folding structure diagram of the foldable cardboard corner protector proposed in this utility model;
[0027] Figure 4 This is a folding and releasing structure diagram of the foldable cardboard corner protector proposed in this utility model;
[0028] Figure 5 This is a structural diagram of the limiting sleeve for the foldable cardboard corner protector proposed in this utility model.
[0029] Legend:
[0030] 1. Cardboard body; 101. Folding area one; 102. Folding area two; 103. Folding area three; 104. Folding area four; 2. Folding component one; 201. Folding block one; 202. Folding block two; 3. Folding component two; 301. Folding block three; 302. Folding block four; 4. Folding component three; 401. Folding block five; 402. Folding block six; 5. Folding component four; 501. Folding block seven; 502. Folding block eight; 6. Limiting sleeve. Detailed Implementation
[0031] Reference Figure 1-5 The foldable cardboard corner protector provided by this utility model includes a cardboard body 1, which is corrugated cardboard. The corrugated cardboard can be stretched laterally by 5-10%, and the folded area can be pre-crimped for shaping. The cardboard body 1 includes folding component 2, folding component 3, folding component 4, and folding component 5. Folding component 2 and folding component 3 can be folded longitudinally together with folding component 3 and folding component 4. Folding component 2 and folding component 3 and folding component 4 are folded longitudinally along the middle of the cardboard body 1, thus forming... Figure 2 In this state, folding components 1 (2) and folding component 2 (3) can be folded horizontally as a whole, folding components 1 (2) and folding component 2 (3) together fold along the middle of their entire structure. Similarly, folding components 3 (4) and folding component 4 (5) can be folded horizontally as a whole, folding components 3 (4) and folding component 4 (5) together fold along the middle of their entire structure, thus forming... Figure 3 In this configuration, folding components 1 (2) and 2 (3) can be folded horizontally together with folding components 3 (4) and 4 (5). They are folded at the middle, forming a right angle. After folding, the outer walls of the cardboard body 1 are fitted with limiting sleeves 6 at both ends. The limiting sleeves 6 are in use as follows: Figure 4In the right-angle state, with the limiting sleeve 6 in place, folding components 1 (2) and 2 (3) can be folded together with folding components 3 (4) and 4 (5) at the middle. The cardboard body 1 has folding areas 1 (101), 2 (102), 3 (103), and 4 (104) inside. Folding areas 1 (101), 2 (102), 3 (103), and 4 (104) all serve to assist in folding. Folding area 1 (101) is horizontally oriented. Folding areas 102, 3, and 4 are arranged vertically. One half of 103 is folding block 1 201 and folding block 3 301, and the other half is folding block 5 401 and folding block 7 501. Folding components 1 2 and 3 4 as a whole, along with folding components 2 3 and 4 5 as a whole, can be folded vertically along 101. Folding components 1 2 and 2 3 as a whole, along with folding components 3 4 and 4 5 as a whole, can be folded horizontally along 103.
[0032] Folding component 2 includes folding block 1 201 and folding block 2 202. Folding block 1 201 and folding block 2 202 can be folded laterally along folding area 2 102. After folding folding block 1 201 and folding block 2 202 laterally along folding area 2 102, the length of folding block 2 202 is less than the length of folding block 1 201. Folding component 3 includes folding block 3 301 and folding block 4 302. Folding block 3 301 and folding block 4 302 can be folded laterally along folding area 2 102. After folding folding block 3 301 and folding block 4 302 laterally along folding area 2 102, the length of folding block 4 302 is less than the length of folding block 3 301. Folding component 4 includes folding block 5 401 and folding block 6 402. Folding block 5 401 and folding block 6 402 can be folded laterally along folding area 2 102. After folding ... Folding block 6 402 can be folded laterally along folding area 4 104. After folding blocks 5 401 and 6 402 are folded laterally along folding area 4 104, the length of folding block 6 402 is less than the length of folding block 5 401. Folding component 4 5 includes folding block 7 501 and folding block 8 502. Folding blocks 7 501 and 8 502 can be folded laterally along folding area 4 104. After folding blocks 7 501 and 8 502 are folded laterally along folding area 4 104, the length of folding block 8 502 is less than the length of folding block 7 501. One limiting sleeve 6 is fitted on the outer wall of folding component 1 2 and folding component 2 3 after folding, and the other limiting sleeve 6 is fitted on the outer wall of folding component 3 4 and folding component 4 5 after folding.
[0033] Working principle: In use, first fold assemblies 2 (3) and 4 (5) together along folding area 101 and fold assemblies 2 and 3 (4) together to form... Figure 2Then, fold the entire assembly of folding block 202 and folding block 402 along folding area 2102, and fold the entire assembly of folding block 101 and folding block 301 along folding area 2104. Finally, fold the entire assembly of folding block 602 and folding block 802 along folding block 501 and folding block 701 along folding area 4104, forming... Figure 3 In the first position, take two limiting sleeves 6. Place one limiting sleeve 6 on the folded area 202 where folded block 2 and folded block 4 302 are folded together with folded block 1 201 and folded block 3 301 along folded area 2 102. Place the other limiting sleeve 6 on the folded area 404 where folded block 6 402 and folded block 8 502 are folded together with folded block 5 401 and folded block 7 501 along folded area 4 104, forming... Figure 4 The state, finally in Figure 4 In this state, the parts covered by the two limiting sleeves 6 are folded at a right angle along the folding area 3 103, which can protect the corners of the transported items. Not only is the folding operation simple, but it can also limit the folded cardboard corner protectors to prevent them from becoming loose and affecting the effectiveness of the cardboard corner protectors in protecting the corners of the items.
[0034] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A foldable cardboard corner protector, comprising a cardboard body (1), characterized in that: The cardboard body (1) is corrugated cardboard. The cardboard body (1) includes folding component one (2), folding component two (3), folding component three (4) and folding component four (5). The folding component one (2) and folding component three (4) can be folded longitudinally together with the folding component two (3) and folding component four (5). The folding component one (2) and folding component two (3) can be folded laterally. The folding component three (4) and folding component four (5) can be folded laterally. The folding component one (2) and folding component two (3) can be folded laterally together with the folding component three (4) and folding component four (5). The cardboard body (1) after folding is fitted with limiting sleeves (6) at both ends of its outer wall.
2. The foldable cardboard corner protector according to claim 1, characterized in that: The cardboard body (1) is provided with folding area one (101), folding area two (102), folding area three (103) and folding area four (104) inside. Folding area one (101) is arranged horizontally, and folding area two (102), folding area three (103) and folding area four (104) are arranged vertically.
3. The foldable cardboard corner protector according to claim 2, characterized in that: The folding component one (2) and folding component three (4) together with the folding component two (3) and folding component four (5) can be folded longitudinally along folding area one (101), and the folding component one (2) and folding component two (3) together with the folding component three (4) and folding component four (5) can be folded laterally along folding area three (103).
4. The foldable cardboard corner protector according to claim 3, characterized in that: The folding component one (2) includes folding block one (201) and folding block two (202), which can be folded laterally along folding area two (102).
5. The foldable cardboard corner protector according to claim 4, characterized in that: The second folding component (3) includes a third folding block (301) and a fourth folding block (302), which can be folded laterally along the second folding area (102).
6. The foldable cardboard corner protector according to claim 5, characterized in that: The folding component three (4) includes folding block five (401) and folding block six (402), which can be folded laterally along folding area four (104).
7. The foldable cardboard corner protector according to claim 6, characterized in that: The folding assembly four (5) includes folding block seven (501) and folding block eight (502), which can be folded laterally along folding area four (104).
8. The foldable cardboard corner protector according to claim 1, characterized in that: One of the limiting sleeves (6) is fitted on the outer wall of the folded folding component one (2) and folding component two (3) after folding, and the other limiting sleeve (6) is fitted on the outer wall of the folded folding component three (4) and folding component four (5) after folding.