Packaging plate and mobile phone support

By using a cardboard integrated folding design, and utilizing limiting grooves and creases to form a support structure, the problem of existing mobile phone holders being non-removable is solved, achieving convenient use of mobile phone holders and environmentally friendly production.

CN223508859UActive Publication Date: 2025-11-04CHINA MOBILE COMM GRP CO LTD +1
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Patent Information

Application Number
CN202423208848.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-25
Publication Date
2025-11-04
Estimated Expiration
2034-12-25

AI Technical Summary

Technical Problem

Existing mobile phone stands are generally made of polymer injection molding or paper folding. Once formed, they cannot be disassembled and require glue or clips for fixation, making them inconvenient to use.

Method used

It adopts a cardboard one-piece folding design. By setting the limiting groove and crease on the base plate, the support structure is formed by the folding of the plug plate and the support plate, forming a mobile phone stand without the need for glue or clips.

Benefits of technology

This invention enables the phone holder to be detachable and foldable, with a simple structure, convenient operation, reduced production and processing costs, and improved environmental friendliness.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of mobile phone accessories, and provides a packaging plate and a mobile phone support, the packaging plate comprises a bottom plate, a first support plate and a second support plate, and the bottom plate is provided with a limiting groove; a first inserting plate is arranged at the end, away from the bottom plate, of the first supporting plate, the first supporting plate can be folded along the first fold so that the first inserting plate can be inserted into the limiting groove, and the first supporting plate is bent to form a first supporting part; a second inserting plate is arranged at the end, away from the bottom plate, of the second supporting plate, the second supporting plate can be folded along the second fold so that the second inserting plate can be inserted into the limiting groove, and the second supporting plate is bent to form a second supporting part; a containing groove is formed between the first supporting part and the second supporting part. According to the packaging plate in the scheme, the first inserting plate and the second inserting plate are inserted into the limiting grooves, so that the packaging plate can be directly folded to form the mobile phone support, other structures such as glue and clamps are not needed for auxiliary fixing, the structure is simple, and operation is convenient and fast.
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Description

Technical Field

[0001] This utility model relates to the field of mobile phone accessories technology, and in particular to packaging boards and mobile phone stands. Background Technology

[0002] Existing mobile phone stands are generally made by injection molding of polymer materials or by folding paper into a stand and fixing it with glue. Once formed, they are fixed and cannot be changed, and cannot be disassembled to restore their original shape. They also require glue, clips and other auxiliary fixation. Utility Model Content

[0003] This utility model aims to solve at least one of the technical problems existing in the related art. To this end, this utility model proposes a packaging board that uses cardboard to fold into a mobile phone stand in one piece, without the need for glue or clips for auxiliary fixation.

[0004] This utility model also proposes a mobile phone holder.

[0005] The packaging board according to the first aspect of the present utility model includes:

[0006] The base plate has a limiting groove.

[0007] A first support plate is connected to one side of the base plate and has a first crease at the connection with the base plate. A first insertion plate is provided at the end of the first support plate away from the base plate. A first insertion crease is formed at the connection between the first insertion plate and the first support plate. The first support plate can be folded along the first crease so that the first insertion plate is inserted into the limiting groove. The first support plate is bent to form a first support part.

[0008] The second support plate is connected to the bottom plate on one side away from the first support plate, and a second crease is formed at the connection with the bottom plate. A second insertion plate is provided at one end of the second support plate away from the bottom plate. A second insertion crease is formed at the connection between the second insertion plate and the second support plate. The second support plate can be folded along the second crease so that the second insertion plate is inserted into the limiting groove. The second support plate is bent to form a second support part.

[0009] The height of the first support part is higher than the height of the second support part, and a placement groove is formed between the first support part and the second support part.

[0010] According to an embodiment of this utility model, the packaging board is constructed by connecting a first support plate and a second support plate to two opposite sides of a base plate, with creases formed at the connection points between the two support plates and the base plate, namely a first crease and a second crease. Simultaneously, a limiting groove is formed on the base plate. This allows the first support plate to be folded along the first crease, so that the end of the first support plate away from the base plate folds into the corresponding limiting groove, thereby inserting a first insert plate into the limiting groove. The first insert plate can also be folded along the first insertion crease to abut against the back of the base plate, fixing the folded first support plate and forming a first support portion. Furthermore, the second support plate can be folded along the second crease, so that the end of the second support plate away from the base plate folds into the corresponding limiting groove, thereby inserting a second insert plate into the limiting groove. The second insert plate can also be folded along the second insertion crease to abut against the back of the base plate, fixing the folded second support plate and forming a second support portion. A placement groove is formed between the first and second support parts for placing electronic products such as mobile phones. The height of the first support part is higher than that of the second support part so that the mobile phone at the placement groove position is not blocked by the first support part, making it easy to view. Therefore, the packaging plate in this solution can be directly folded to form a mobile phone stand by inserting the first and second plug-in plates into the limiting groove, without the need for glue, clips or other structural auxiliary fixation. The structure is simple and the operation is convenient.

[0011] According to one embodiment of the present invention, the first support plate includes two connected first back plates and second back plates. The first back plate is connected to the bottom plate and forms the first crease. The second back plate is connected to the side of the first back plate away from the bottom plate. A rear crease is formed at the connection between the first back plate and the second back plate. The first insertion plate is connected to the side of the second back plate away from the first back plate and forms the first insertion crease.

[0012] According to one embodiment of the present invention, the first back plate and the second back plate are symmetrically arranged about the rear crease.

[0013] According to one embodiment of the present invention, the second back plate is provided with a card slot for inserting a card.

[0014] According to one embodiment of the present invention, the second back plate has two spaced-apart strip holes, and the second back plate adapts to deformation along the two strip holes to form the card slot, and the card is inserted through the two strip holes.

[0015] According to one embodiment of the present invention, the second support plate includes two connected first front plates and second front plates. The first front plate is connected to the bottom plate and forms the second crease. The second front plate is connected to the side of the first front plate away from the bottom plate. A front crease is formed at the connection between the first front plate and the second front plate. The second insertion plate is connected to the side of the second front plate away from the first front plate and forms the second insertion crease.

[0016] According to one embodiment of the present invention, the first front plate and the second front plate are symmetrically arranged about the front crease.

[0017] According to one embodiment of the present invention, the first plug-in plate has a first latch protruding outward at both ends extending along the first plug-in crease;

[0018] And / or, the second plug plate has a second latch protruding outward at both ends extending along the second plug crease.

[0019] According to one embodiment of the present utility model, the first support plate has two first slots on one side of the first plug-in plate. The two first slots are spaced apart and extend in a direction away from the first plug-in plate. One of the first slots corresponds to one end of the first plug-in plate, and the other first slot corresponds to the other end of the first plug-in plate.

[0020] And / or, the second support plate has two second slots on one side of the second plug plate, the two second slots are spaced apart, the second slots extend in a direction away from the second plug plate, one of the second slots corresponds to one end of the second plug plate, and the other second slot corresponds to the other end of the second plug plate.

[0021] According to a second aspect of the present invention, the mobile phone holder is formed by folding the aforementioned packaging board.

[0022] The mobile phone holder according to the present utility model includes the above-mentioned packaging board, and therefore has all the technical effects of the above-mentioned packaging board, which will not be repeated here.

[0023] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or related technologies, the drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a structural schematic diagram of the unfolded state of the packaging board provided in an embodiment of this utility model.

[0026] Figure 2 This is a structural schematic diagram of the unfolded state of the packaging board provided in an embodiment of this utility model.

[0027] Figure 3 This is a schematic diagram of the folded state of the packaging board provided in this embodiment of the utility model.

[0028] Figure 4 This is a side view of the packaging board in a folded state according to an embodiment of the present invention.

[0029] Figure 5 This is a side view of the packaging board in a folded state according to an embodiment of the present invention, wherein a card is installed in the card slot.

[0030] Figure 6 This is a rear view of the packaging board during the card installation process provided in this embodiment of the utility model.

[0031] Figure 7 This is a rear view of the packaging board after the card is installed, according to an embodiment of this utility model.

[0032] Figure 8 This is a schematic diagram of the structure of the mobile phone holder for placing a mobile phone according to an embodiment of this utility model.

[0033] Figure label:

[0034] 1. Base plate; 11. Limiting groove; 2. First support plate; 21. First back plate; 22. Second back plate; 221. Slot; 222. Strip hole; 23. First insertion plate; 231. First latch; 232. First latch; 24. First insertion crease; 25. Rear crease; 3. First crease; 4. Second support plate; 41. First front plate; 42. Second front plate; 43. Second insertion plate; 431. Second latch; 432. Second latch; 44. Second insertion crease; 45. Front crease; 5. Second crease; 6. Placement slot; 7. Card. Detailed Implementation

[0035] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0036] In the description of the embodiments of this utility model, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0037] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this utility model based on the specific circumstances.

[0038] In this embodiment of the utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0039] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0040] like Figures 1 to 3 As shown, the packaging board according to the first aspect of the present invention includes a base plate 1, a first support plate 2, and a second support plate 4. The base plate 1 has a limiting groove 11. The first support plate 2 is connected to one side of the base plate 1 and has a first crease 3 formed at the connection with the base plate 1. A first insertion plate 23 is provided at the end of the first support plate 2 away from the base plate 1. A first insertion crease 24 is formed at the connection between the first insertion plate 23 and the first support plate 2. The first support plate 2 can be folded along the first crease 3 so that the first insertion plate 23 can be inserted. In the limiting groove 11, the first support plate 2 is bent to form a first support part; the second support plate 4 is connected to a side of the base plate 1 away from the first support plate 2, and a second crease 5 is formed at the connection with the base plate 1. A second insertion plate 43 is provided at the end of the second support plate 4 away from the base plate 1. A second insertion crease 44 is formed at the connection between the second insertion plate 43 and the second support plate 4. The second support plate 4 can be folded along the second crease 5 so that the second insertion plate 43 is inserted into the limiting groove 11. The second support plate 4 is bent to form a second support part.

[0041] The height of the first support part is higher than the height of the second support part, and a placement groove 6 is formed between the first support part and the second support part. It should be noted that the height of the first support part and the height of the second support part are based on the base plate 1.

[0042] According to the packaging board of this utility model embodiment, a first support plate 2 and a second support plate 4 are respectively connected to two opposite sides of the base plate 1, and creases are formed at the connection points of the two support plates and the base plate 1, namely a first crease 3 and a second crease 5. At the same time, a limiting groove 11 is formed on the base plate 1, so that the first support plate 2 can be folded along the first crease 3, so that the end of the first support plate 2 away from the base plate 1 is folded to the corresponding limiting groove 11, thereby inserting the first insertion plate 23 into the limiting groove 11. The first insertion plate 23 can be folded along the first insertion crease 24 to abut against the back of the base plate 1, fixing the folded first support plate 2 in place, forming a first support part. Furthermore, the second support plate 4 can be folded along the second crease 5, so that the end of the second support plate 4 away from the base plate 1 is folded to the corresponding limiting groove 11, thereby inserting the second insertion plate 43 into the limiting groove 11. The second insertion plate 43 can be folded along the second insertion crease 44 to abut against the back of the base plate 1, fixing the folded second support plate 4 in place, forming the second support part. A placement groove 6 is formed between the first support part and the second support part for placing electronic products such as mobile phones. The height of the first support part is higher than the height of the second support part so that the mobile phone at the placement groove 6 position is not blocked by the first support part, making it easy to view. Therefore, the packaging plate in this solution can be directly folded to form a mobile phone holder by inserting the first insertion plate 23 and the second insertion plate 43 into the limiting groove 11, without the need for glue, clips or other structural auxiliary fixation, making the structure simple and the operation convenient.

[0043] In one embodiment, the packaging board can be made of polymer material, cardboard from a set-top box, or coated paper, i.e., it can be made of cardboard. For example, a pre-designed integrated shape and templates for folding and cutting are printed on the cardboard material. Simultaneously, the cardboard material is cut into irregular shapes, and structures such as a limiting groove 11, a first fold 3, a second fold 5, a first insert plate 23, a first insert fold 24, a second insert plate 43, and a second insert fold 44 are formed on the cardboard material to create the packaging board. The packaging board can be attached to the SIM card mailed to the user. After receiving the packaging board, the user folds it according to the instructions to form a phone holder, which can then be used to place a mobile phone or tablet in the placement slot 6. The raw materials used to form the packaging board are simple and inexpensive, thus keeping the cost relatively low. Furthermore, the process is simple, requiring only folding to form the shape, reducing processing costs. Additionally, the packaging board is made of a biodegradable material, making it easy to recycle and reuse. Even after use and disposal, it can degrade quickly, thus avoiding environmental pollution and improving the environmental friendliness of the packaging board.

[0044] According to one embodiment of the present invention, the first support plate 2 includes two connected first back plates 21 and second back plates 22. The first back plate 21 is connected to the bottom plate 1 and forms a first crease 3. The second back plate 22 is connected to the side of the first back plate 21 away from the bottom plate 1. A rear crease 25 is formed at the connection between the first back plate 21 and the second back plate 22. The first insertion plate 23 is connected to the side of the second back plate 22 away from the first back plate 21 and forms a first insertion crease 24.

[0045] Understandably, the first back plate 21 and the second back plate 22 are bent along the rear crease 25 to form a triangular support structure. The first insertion plate 23 is inserted into the limiting groove 11, and the position of the rear crease 25 is the highest point of the first support plate 2. The first back plate 21 is inclined to the bottom plate 1. When the mobile phone is placed in the placement groove 6, the first back plate 21 can serve as a support plate to support the mobile phone. At the same time, one end of the second back plate 22 supports the bottom plate 1, and the other end supports the first back plate 21, so that the first back plate 21 does not fall towards the bottom plate 1.

[0046] According to one embodiment of the present invention, the first back plate 21 and the second back plate 22 are symmetrically arranged about the back crease 25. In this way, after the first plug plate 23 is inserted into the limiting groove 11, the first back plate 21 and the second back plate 22 support each other to form an isosceles triangle structure, which makes the support structure more stable. At the same time, the tilt angle of the first back plate 21 is appropriate, which makes it easy to view the mobile phone screen placed in the placement groove 6.

[0047] like Figures 4 to 7 As shown, according to one embodiment of this utility model, the second back plate 22 is provided with a card slot 221 for inserting a card 7. It is understood that when the supporting strength of the packaging board is insufficient, the card 7 can be inserted into the card slot 221 to enhance the bending resistance of the second back plate 22. For example, a SIM card holder can be inserted into the card slot 221, and the card 7 can be removed for use when needed. It should be noted that a phone holder formed by folding a packaging board made of a harder material can directly support a phone or tablet, while a softer material (such as coated paper) can have the card 7 inserted into the card slot 221 to strengthen the support capacity of the phone holder, thus supporting a phone or tablet.

[0048] According to one embodiment of the present invention, the second back plate 22 has two spaced-apart strip-shaped holes 222. The second back plate 22 deforms along the two strip-shaped holes 222 to form a slot 221, through which a card 7 is inserted. The strip-shaped holes 222 penetrate the front and back of the second back plate 22. It is understood that the extending directions of the two strip-shaped holes 222 are parallel to each other. The card 7 is inserted through the two strip-shaped holes 222 so that part of the card 7 abuts against the front of the second back plate 22, and the other part abuts against the back of the second back plate 22. The card 7 is fixed by the strip-shaped holes 222, which can enhance the strength of the second back plate 22 and improve the support effect.

[0049] like Figure 1 As shown, according to one embodiment of the present invention, the second support plate 4 includes two connected first front plates 41 and second front plates 42. The first front plate 41 is connected to the bottom plate 1 and forms a second crease 5. The second front plate 42 is connected to the side of the first front plate 41 away from the bottom plate 1. A front crease 45 is formed at the connection between the first front plate 41 and the second front plate 42. The second insertion plate 43 is connected to the side of the second front plate 42 away from the first front plate 41 and forms a second insertion crease 44.

[0050] In this embodiment, the first front plate 41 and the second front plate 42 are bent along the front crease 45 to form a triangular support structure. After the second insertion plate 43 is inserted into the limiting groove 11, the position of the front crease 45 is the highest point of the second support plate 4. The first front plate 41 is inclined to the bottom plate 1. When the mobile phone is placed in the placement groove 6, the first front plate 41 can serve as a point support to prevent the mobile phone from slipping. At the same time, one end of the second front plate 42 supports the bottom plate 1, and the other end supports the first front plate 41, so that the first front plate 41 does not fall towards the bottom plate 1. The distance between the end of the first front plate 41 away from the bottom plate 1 and the bottom plate 1 is defined as the length of the first front plate 41. Then, the distance between the end of the first back plate 21 away from the bottom plate 1 and the bottom plate 1 is defined as the length of the first back plate 21. Here, the length of the first back plate 21 is longer than the length of the first front plate 41, so that the first back plate 21 supports the back of the mobile phone, while the first front plate 41 supports the side of the mobile phone, without obstructing the user's view of the mobile phone screen.

[0051] According to one embodiment of the present invention, the first front plate 41 and the second front plate 42 are symmetrically arranged about the front crease 45. In this way, after the second plug plate 43 is inserted into the limiting groove 11, the first front plate 41 and the second front plate 42 support each other to form an isosceles triangle structure, and the support structure is more stable.

[0052] According to one embodiment of the present invention, the first plug-in plate 23 has a first latch 231 protruding outward at both ends extending along the first plug-in fold 24; optionally, the second plug-in plate 43 has a second latch 431 protruding outward at both ends extending along the second plug-in fold 44. It is understood that the first plug-in plate 23 and the second plug-in plate 43 can serve as tongues for insertion into the limiting groove 11. The first plug-in plate 23 is folded along the first plug-in fold 24 and abuts against the back of the base plate 1, and the second plug-in plate 43 is folded along the second plug-in fold 44 and abuts against the back of the base plate 1. Therefore, the first latch 231 can serve as ears protruding outward on both sides of the first plug-in plate 23, and the second latch 431 can serve as ears protruding outward on both sides of the second plug-in plate 43. This allows the first plug-in plate 23 and the second plug-in plate 43 to be locked in place after insertion into the limiting groove 11, preventing them from falling out and improving connection stability.

[0053] According to one embodiment of the present invention, the first support plate 2 has two first latches 232 on one side of the first plug-in plate 23. The two first latches 232 are spaced apart and extend in a direction away from the first plug-in plate 23. One first latch 232 corresponds to one end of the first plug-in plate 23, and the other first latch 232 corresponds to the other end of the first plug-in plate 23. It can be understood that the first latch 232 is a small opening, which helps the first plug-in plate 23 to be firmly locked in the limiting groove 11, improving connection stability.

[0054] Optionally, the second support plate 4 has two second latches 432 on one side of the second plug-in plate 43. The two second latches 432 are spaced apart and extend in a direction away from the second plug-in plate 43. One second latch 432 corresponds to one end of the second plug-in plate 43, and the other second latch 432 corresponds to the other end of the second plug-in plate 43. It can be understood that the second latch 432 is a small opening, which helps the second plug-in plate 43 to be firmly locked in the limiting groove 11, improving connection stability.

[0055] like Figure 3 and Figure 8 As shown, the mobile phone holder according to the second aspect of the present invention is formed by folding the above-mentioned packaging plate.

[0056] The mobile phone holder according to the present utility model includes the above-mentioned packaging board, and therefore has all the technical effects of the above-mentioned packaging board, which will not be repeated here.

[0057] Finally, it should be noted that the above embodiments are only used to illustrate the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the embodiments, those skilled in the art should understand that various combinations, modifications, or equivalent substitutions of the technical solutions of the present invention do not depart from the spirit and scope of the technical solutions of the present invention and should be covered within the scope of the claims of the present invention.

Claims

1. A packaging board, characterized in that, include: The base plate has a limiting groove. A first support plate is connected to one side of the base plate and has a first crease at the connection with the base plate. A first insertion plate is provided at the end of the first support plate away from the base plate. A first insertion crease is formed at the connection between the first insertion plate and the first support plate. The first support plate can be folded along the first crease so that the first insertion plate is inserted into the limiting groove. The first support plate is bent to form a first support part. The second support plate is connected to the bottom plate on one side away from the first support plate, and a second crease is formed at the connection with the bottom plate. A second insertion plate is provided at one end of the second support plate away from the bottom plate. A second insertion crease is formed at the connection between the second insertion plate and the second support plate. The second support plate can be folded along the second crease so that the second insertion plate is inserted into the limiting groove. The second support plate is bent to form a second support part. The height of the first support part is higher than the height of the second support part, and a placement groove is formed between the first support part and the second support part.

2. The packaging board according to claim 1, characterized in that, The first support plate includes two connected first back plates and second back plates. The first back plate is connected to the base plate and forms the first crease. The second back plate is connected to the side of the first back plate away from the base plate. A back crease is formed at the connection between the first back plate and the second back plate. The first insertion plate is connected to the side of the second back plate away from the first back plate and forms the first insertion crease.

3. The packaging board according to claim 2, characterized in that, The first back plate and the second back plate are symmetrically arranged about the rear crease.

4. The packaging board according to claim 2, characterized in that, The second back plate is provided with a card slot for inserting a card.

5. The packaging board according to claim 4, characterized in that, The second back plate has two spaced-apart strip holes. The second back plate deforms along the two strip holes to form the card slots, and the cards are inserted through the two strip holes.

6. The packaging board according to any one of claims 1 to 5, characterized in that, The second support plate includes two connected first front plates and second front plates. The first front plate is connected to the bottom plate and forms the second crease. The second front plate is connected to the side of the first front plate away from the bottom plate. A front crease is formed at the connection between the first front plate and the second front plate. The second insertion plate is connected to the side of the second front plate away from the first front plate and forms the second insertion crease.

7. The packaging board according to claim 6, characterized in that, The first front panel and the second front panel are symmetrically arranged about the front crease.

8. The packaging board according to any one of claims 1 to 5, characterized in that, The first plug plate has a first latch protruding outward at both ends extending along the first plug crease; And / or, the second plug plate has a second latch protruding outward at both ends extending along the second plug crease.

9. The packaging board according to any one of claims 1 to 5, characterized in that, The first support plate has two first slots on one side of the first plug-in plate. The two first slots are spaced apart and extend in a direction away from the first plug-in plate. One of the first slots corresponds to one end of the first plug-in plate, and the other first slot corresponds to the other end of the first plug-in plate. And / or, the second support plate has two second slots on one side of the second plug plate, the two second slots are spaced apart, the second slots extend in a direction away from the second plug plate, one of the second slots corresponds to one end of the second plug plate, and the other second slot corresponds to the other end of the second plug plate.

10. A mobile phone stand, characterized in that, The mobile phone holder is formed by folding a packaging plate as described in any one of claims 1 to 9.