CN218044113U - Protective sleeve for tablet electronic equipment - Google Patents

Abstract

The utility model provides a flat-panel electronic equipment protective sleeve, belonging to the technical field of electronic product accessories, which comprises a protective shell, a protective cover and a support module; the protective cover comprises a first back plate, a first flexible part, a second back plate, a second flexible part and a panel which are sequentially connected, the first back plate is connected to the back of the protective shell, and the second back plate, the protective shell and the panel can enclose to form a triangular support structure; the supporting module comprises a first supporting structure and a second supporting structure, and the first supporting structure and the second supporting structure can be bent towards opposite directions and enclose to form a triangular supporting structure. The utility model provides a dull and stereotyped electronic equipment protective sheath, through the dull and stereotyped electronic equipment of horizontal or vertical support of mutually supporting of protection casing, back of the body flitch, panel and support module, realized dull and stereotyped electronic equipment's multi-angle and supported, richened user's use and experienced, be worth extensively promoting.

Description

Protective sleeve for tablet electronic equipment

Technical Field

The utility model belongs to the technical field of the electronic product accessory, more specifically say, relate to a dull and stereotyped electronic equipment protective sheath.

Background

With the development of society, various flat-type electronic products are becoming popular with the public, and the flat-type electronic products generally refer to various portable electronic products having a flat-type structure, such as a home education machine, a tablet computer, an electronic book, a large-screen smart phone, a game machine, and the like. In the prior art, when a user uses electronic equipment, the user usually sleeves a protective sleeve, and when the protective sleeve reduces the abrasion of the electronic equipment, part of the protective sleeve also has the function of supporting the electronic equipment.

However, when the user uses the electronic device, the user has the requirement of supporting the transverse screen and the vertical screen, and the existing protective sleeve has a single supporting angle and is difficult to meet the requirement of the user.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides a dull and stereotyped electronic equipment protective sheath to solve the more single technical problem of support angle of the current protective sheath that exists among the prior art.

In order to achieve the above object, the utility model provides a dull and stereotyped electronic equipment protective sheath, this dull and stereotyped electronic equipment protective sheath includes:

a protective housing;

the protective cover comprises a first back plate, a first flexible part, a second back plate, a second flexible part and a panel which are sequentially connected along the width direction of the protective shell, the first back plate is connected to the back of the protective shell, the second back plate has a first rotating position and a second rotating position relative to the first back plate, the second back plate is attached to the protective shell when rotating to the first rotating position, and when the second back plate rotates to the second rotating position, the second back plate, the protective shell and the panel enclose a triangular support structure to transversely support the protective shell; and

the supporting module comprises a first supporting structure and a second supporting structure movably arranged on the first supporting structure, the first supporting structure is connected to the protective shell, the second supporting structure is connected to the first back plate, the first supporting structure and the second supporting structure can be bent in opposite directions respectively along the length direction of the protective shell and form a triangular supporting structure in a surrounding mode, and the vertical supporting protective shell is used for supporting the protective shell.

Optionally, the first support structure includes a first support plate, a third flexible portion and a second support plate which are sequentially connected along the length direction of the protection housing, the second support structure includes a third support plate, a fourth flexible portion and a fourth support plate which are sequentially connected along the length direction of the protection housing, one end of the third support plate, which is far away from the fourth support plate, is flexibly connected with the first support plate, and one end of the fourth support plate, which is far away from the third support plate, is flexibly connected with the second support plate through a fifth flexible portion;

in the process of bending the first supporting structure and the second supporting structure, the fourth supporting plate is attached to the second supporting plate, and a combined piece formed by the first supporting plate and the second supporting plate, the first supporting plate and the third supporting plate are enclosed to form a triangular supporting structure.

Optionally, a limiting member is disposed on a surface of the first back plate and/or the second back plate close to the protection housing, and when the second support plate encloses to form the triangular support structure, the second support plate abuts against the limiting member.

Optionally, a fourth magnetic attraction piece is arranged on the second support plate, and a fifth magnetic attraction piece corresponding to the fourth magnetic attraction piece is arranged on the fourth support plate.

Optionally, the first supporting plate is fixedly connected to the protective casing, and at least a part of the third supporting plate is fixedly connected to the first back plate.

Optionally, the second supporting structure further includes a fifth supporting plate, the fifth supporting plate and one end of the third supporting plate far away from the fourth supporting plate are flexibly connected through a sixth flexible portion, and one end of the fifth supporting plate far away from the third supporting plate is flexibly connected with the first supporting plate through a seventh flexible portion.

Optionally, a first notch is formed in one side, connected with the second support plate, of the first support plate, a second notch is formed in one side, connected with the first support plate, of the second support plate, and the second notch and the first notch are communicated to form a window area for placing a second support structure.

Optionally, a magnetic member is disposed on the back surface of the protection housing, and a first magnetic attraction member corresponding to the magnetic member is disposed on the first back plate.

Optionally, the panel is provided with a second magnetic attraction piece and a third magnetic attraction piece at intervals, wherein the second magnetic attraction piece and the third magnetic attraction piece can be attracted to the tablet electronic device in the protective shell.

Optionally, the protective cover includes a first upper outer skin, a first supporting sheet layer and a first lower outer skin, which are sequentially stacked, and the second magnetic attraction element and the third magnetic attraction element are disposed between the first upper outer skin and the first supporting sheet layer.

The utility model provides a beneficial effect of dull and stereotyped electronic equipment protective sheath lies in: compared with the prior art, the protective sleeve for the flat-panel electronic equipment comprises a protective shell, a protective cover and a supporting module; the protective cover comprises a first back plate, a first flexible part, a second back plate, a second flexible part and a panel which are sequentially connected, the first back plate is connected to the back of the protective shell, the second back plate has a first rotating position and a second rotating position relative to the first back plate, and when the second back plate rotates to the second rotating position, the second back plate, the protective shell and the panel enclose a triangular support structure to transversely support the protective shell; the supporting module comprises a first supporting structure and a second supporting structure movably arranged on the first supporting structure, the first supporting structure is connected to the protective shell, the second supporting structure is connected to the first back plate, and the first supporting structure and the second supporting structure can be bent towards opposite directions and are enclosed to form a triangular supporting structure so as to vertically support the protective shell; therefore, the utility model discloses a dull and stereotyped electronic equipment protective sheath transversely supports dull and stereotyped electronic equipment through mutually supporting of protection casing, back of the body flitch and panel, simultaneously, the utility model discloses a dull and stereotyped electronic equipment protective sheath can also be through mutually supporting of protection casing, back of the body flitch and support module come vertical support dull and stereotyped electronic equipment, has realized dull and stereotyped electronic equipment's multi-angle and has supported, has richened user's use and has experienced, is worth extensively promoting.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.

Fig. 1 is an exploded schematic view of a protective cover for a tablet electronic device according to an embodiment of the present invention;

fig. 2 is a schematic perspective view of a protective cover of a tablet electronic device according to an embodiment of the present invention in an open state;

fig. 3 is a schematic perspective view of a protective cover of a tablet electronic device protective cover according to an embodiment of the present invention in a covering state;

fig. 4 is a schematic side view of a protective cover of a tablet electronic device according to an embodiment of the present invention in a covering state;

fig. 5 is a schematic view of a three-dimensional structure of a supporting module of a protective cover for a tablet electronic device according to an embodiment of the present invention in a supporting state;

fig. 6 is a schematic perspective view of a supporting module of a protective cover for a tablet electronic device according to an embodiment of the present invention in a supporting state;

fig. 7 is a schematic side view of a supporting module of a protective sleeve for a tablet electronic device according to an embodiment of the present invention in a supporting state;

fig. 8 is a schematic perspective view of a protective cover of a tablet electronic device protective cover in a support state according to an embodiment of the present invention;

fig. 9 is a schematic side view of a protective cover of a tablet electronic device protective cover in a stand state according to an embodiment of the present invention;

fig. 10 is a schematic perspective view of a support module of a protective cover for a tablet electronic device according to an embodiment of the present invention in a tiled state;

fig. 11 is an exploded schematic view of a back attachment plate and a panel of a protective cover for a tablet electronic device according to an embodiment of the present invention;

fig. 12 is an exploded schematic view of a support module of a protective case for a tablet electronic device according to an embodiment of the present invention.

Wherein, in the figures, the respective reference numerals:

10. a protective housing; 110. a magnetic member;

20. a protective cover; 210. a first back plate; 220. a first flexible portion; 230. a second back plate; 240. a second flexible portion; 250. a panel; 260. a first magnetic attraction member; 270. a second magnetic attraction member; 280. a third magnetic attraction member;

30. a stopper;

40. a support module; 410. a first support structure; 411. a first support plate; 412. a second support plate; 413. a third flexible portion; 420. a second support structure; 421. a third support plate; 422. a fourth support plate; 423. a fifth support plate; 424. a fourth flexible portion; 425. a fifth flexible portion; 426. a sixth flexible portion; 427. a seventh flexible portion; 430. a fourth magnetic attraction member; 440. a fifth magnetic attraction piece;

100. a first upper outer skin; 200. a first support sheet layer; 300. a first lower outer skin; 400. a second upper outer skin; 500. a second support sheet layer; 600. a second lower outer skin.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

As mentioned in the background, in the prior art, a user usually puts on a protective cover when using an electronic device, and the protective cover reduces the wear of the electronic device and also has a function of supporting the electronic device. However, when the user uses the electronic device, the user has not only the requirement of horizontal screen support, but also the requirement of vertical screen support, and the support angle of the existing protective sleeve is single, so that the user requirement is difficult to meet.

In order to solve the above problem, an embodiment of the present invention provides a protective cover for a tablet electronic device, please refer to fig. 1 to 12 together, the protective cover for a tablet electronic device includes a protective housing 10, a protective cover 20 and a supporting module 40; the protective cover 20 includes a first back plate 210, a first flexible portion 220, a second back plate 230, a second flexible portion 240 and a panel 250 sequentially connected along a width direction of the protective housing 10, the first back plate 210 is connected to the back of the protective housing 10, the second back plate 230 has a first rotation position and a second rotation position relative to the first back plate 210, the second back plate 230 is attached to the protective housing 10 when rotating to the first rotation position, and when the second back plate 230 rotates to the second rotation position, the second back plate 230, the protective housing 10 and the panel 250 enclose a triangular support structure to laterally support the protective housing 10; the supporting module 40 includes a first supporting structure 410 and a second supporting structure 420 movably disposed on the first supporting structure 410, the first supporting structure 410 is connected to the protection casing 10, the second supporting structure 420 is connected to the first back plate 210, and the first supporting structure 410 and the second supporting structure 420 can be respectively bent in opposite directions along the length direction of the protection casing 10 and form a triangular supporting structure by enclosure to vertically support the protection casing 10.

In the embodiment of the present invention, the protective cover for a tablet electronic device includes a protective casing 10, a protective cover 20 and a support module 40; the protective cover 20 includes a first back plate 210, a first flexible portion 220, a second back plate 230, a second flexible portion 240 and a panel 250, which are connected in sequence, the first back plate 210 is connected to the back of the protective casing 10, the second back plate 230 has a first rotation position and a second rotation position relative to the first back plate 210, when the second back plate 230 rotates to the second rotation position, the second back plate 230, the protective casing 10 and the panel 250 form a triangular support structure to support the protective casing 10 laterally; the supporting module 40 includes a first supporting structure 410 and a second supporting structure 420 movably disposed on the first supporting structure 410, the first supporting structure 410 is connected to the protection casing 10, the second supporting structure 420 is connected to the first back plate 210, and the first supporting structure 410 and the second supporting structure 420 can be bent in opposite directions and form a triangular supporting structure to vertically support the protection casing 10; therefore, the utility model discloses a dull and stereotyped electronic equipment protective sheath is through mutually supporting of protection casing 10, back of the body flitch and panel 250 and transversely supports dull and stereotyped electronic equipment, simultaneously, the utility model discloses a dull and stereotyped electronic equipment protective sheath can also come vertical support dull and stereotyped electronic equipment through mutually supporting of protection casing 10, back of the body flitch and support module 40, has realized dull and stereotyped electronic equipment's multi-angle and has supported, has richened user's use and has experienced, is worth extensively promoting.

It should be noted that the electronic device to which the protective cover for tablet electronic device of the present embodiment is applied is a tablet computer, and the width direction of the protective housing 10 refers to the x direction in fig. 1, and the length direction of the protective housing 10 refers to the y direction in fig. 1.

It is understood that, in other embodiments, the electronic device to which the tablet electronic device case is applied may be a mobile phone, a game machine, and the like, which are not limited herein.

It should be further noted that when the first back plate 210, the second back plate 230 and the front plate 250 of the protective cover 20 are in different spatial postures, the protective cover 20 is in different states correspondingly; correspondingly, when the first support structure 410 and the second support structure 420 of the support module 40 are in different spatial attitudes, the support module 40 is also in different states correspondingly.

For the protective cover 20, when the first back plate 210 and the second back plate 230 are both attached to the back surface of the protection housing 10, and the panel 250 is attached to the front surface of the protection housing 10, the protective cover 20 is in a covering state; when the first back plate 210 and the second back plate 230 are both attached to the back surface of the protection housing 10 and the panel 250 rotates to the side of the protection housing 10, the protection cover 20 is in an open state; when second back plate 230 rotates to the second rotating position, protective cover 20 is in the stand state.

For support module 40, before first support structure 410 and second support structure 420 are bent, the support structures are in a flat state; after the first supporting structure 410 and the second supporting structure 420 are respectively bent in opposite directions and enclosed to form a triangular supporting structure, the supporting structure is in a supporting state.

It should be understood that the following descriptions of different states of the protection cover 20 or the support module 40 are all the covering state, the opening state, or the supporting state of the protection cover 20, or the laying state or the supporting state of the support module 40, and are not repeated herein.

Further, the sum of the areas of the first back plate 210, the first flexible portion 220 and the second back plate 230 is equal to or slightly larger than the area of the protection housing 10, and correspondingly, the area of the face plate 250 is equal to the sum of the areas of the first back plate 210, the first flexible portion 220 and the second back plate 230, so that when the protection cover 20 is in the closed state, the protection cover 20 can completely cover the protection housing 10.

In an embodiment, referring to fig. 7 and 10 together, the first supporting structure 410 includes a first supporting plate 411, a third flexible portion 413 and a second supporting plate 412 sequentially connected along the length direction of the protection housing 10, the second supporting structure 420 includes a third supporting plate 421, a fourth flexible portion 424 and a fourth supporting plate 422 sequentially connected along the length direction of the protection housing 10, one end of the third supporting plate 421 away from the fourth supporting plate 422 is flexibly connected to the first supporting plate 411, and one end of the fourth supporting plate 422 away from the third supporting plate 421 is flexibly connected to the second supporting plate 412 through a fifth flexible portion 425; in the process of bending the first supporting structure 410 and the second supporting structure 420, the fourth supporting plate 422 is attached to the second supporting plate 412, and the assembly of the first supporting structure 410 and the second supporting structure is enclosed with the first supporting plate 411 and the third supporting plate 421 to form a triangular supporting structure.

By the above arrangement, the first support structure 410 and the second support structure 420 can be flatly laid on the back of the protection housing 10 before being bent to reduce the occupied space; the first supporting structure 410 and the second supporting structure 420 are respectively bent in opposite directions, and can be conveniently and quickly enclosed to form a triangular supporting structure to support the protection casing 10, so that the structure is simple and the use is convenient.

In an embodiment, referring to fig. 6 and fig. 7, the first back plate 210 and/or the second back plate 230 have a limiting member 30 disposed on a surface thereof close to the protection housing 10, and when the second supporting plate 412 forms a triangular supporting structure, the second supporting plate 412 abuts against the limiting member 30.

Specifically, in the process that the first supporting structure 410 and the second supporting structure 420 of the supporting module 40 are bent reversely to form a triangular supporting structure, the supporting module 40 is switched from the flat state to the supporting state, and when the supporting module 40 is in the supporting state, the second supporting plate 412 abuts against the limiting member 30 to limit the displacement of the second supporting plate 412, so as to stably maintain the supporting state of the supporting module 40.

Further, the two limiting members 30 in the embodiment of the present invention are provided, and the two limiting members 30 are respectively disposed on the first back plate 210 and the second back plate 230.

In other embodiments, the position-limiting member 30 is an adhesive tape, so as to be flexibly mounted on and dismounted from the first back plate 210 and/or the second back plate 230.

In a more specific embodiment, referring to fig. 12, a fourth magnetic element 430 is disposed on the second supporting plate 412, and a fifth magnetic element 440 corresponding to the fourth magnetic element 430 is disposed on the fourth supporting plate 422.

Thus, in the process of forming the triangular supporting structure by reversely bending the first supporting structure 410 and the second supporting structure 420 of the supporting module 40, the second supporting plate 412 can be attached to the fourth supporting plate 422, and the fourth magnetic attraction element 430 on the second supporting plate 412 and the fifth magnetic attraction element 440 on the fourth supporting plate 422 can be attracted to each other, so as to further limit the displacement of the second supporting plate 412 and further maintain the supporting state of the supporting module 40.

In other embodiments, referring to fig. 5 and fig. 6, the first supporting plate 411 is fixedly connected to the protective housing 10, and at least a portion of the third supporting plate 421 is fixedly connected to the first back plate 210.

Specifically, the area of the third supporting plate 421 fixed on the first back plate 210 changes according to the length of the third supporting plate 421 and the first back plate 210 along the x direction, and when the third supporting plate 421 exceeds the first back plate 210, it is only required to ensure that the third supporting plate 421 corresponding to the first back plate 210 is fixed on the first back plate 210.

In other embodiments, the fixed connection between the first supporting plate 411 and the protective casing 10 and the fixed connection between the third supporting plate 421 and the first back plate 210 may be glued or sewn, which is not limited herein.

In some embodiments, referring to fig. 6 and 7, the second supporting structure 420 further includes a fifth supporting plate 423, the fifth supporting plate 423 is flexibly connected to an end of the third supporting plate 421 away from the fourth supporting plate 422 through a sixth flexible portion 426, and an end of the fifth supporting plate 423 away from the third supporting plate 421 is flexibly connected to the first supporting plate 411 through a seventh flexible portion 427.

With the above arrangement, the second supporting structure 420 further includes the fifth supporting plate 423 disposed between the third supporting plate 421 and the first supporting plate 411, and the fifth supporting plate 423 can improve the degree of freedom of position change between the first supporting plate 411 and the third supporting plate 421, so that the first supporting plate 411 fixed to the back surface of the protective housing 10 can be away from the edge of the protective housing 10, and the influence of the first supporting plate 411 on the protective housing 10 is reduced.

In other embodiments, referring to fig. 6 and 10, a first notch is formed on a side of the first supporting plate 411 connected to the second supporting plate 412, a second notch is formed on a side of the second supporting plate 412 connected to the first supporting plate 411, and the second notch is communicated with the first notch to form a window area for placing the second supporting structure 420.

In this way, when the support module 40 is in a tiled state, the second support structure 420 is within the window area of the first support structure 410, and the second support structure 420 does not overlap the first support structure 410, thereby reducing the overall thickness of the support module 40.

In other embodiments, referring to fig. 4, fig. 6, fig. 7 and fig. 11, the magnetic member 110 is disposed on the back surface of the protection casing 10, and the first back plate 210 is disposed with a first magnetic attraction member 260 corresponding to the magnetic member 110.

In this way, when the supporting module 40 is in a tiled state, the magnetic member 110 and the first magnetic member 260 are attracted together, so that the protective housing 10 and the first back plate 210 are attracted together.

Specifically, when the protective cover 20 is in the covering state, the opening state and the supporting state, and in the process of switching the three states, the protective housing 10 and the first backplane 210 can be adsorbed together, so as to avoid the influence of the free movement of the protective housing 10 on the use of the tablet electronic device in the protective housing 10.

In other embodiments, referring to fig. 11, a second magnetic attraction member 270 and a third magnetic attraction member 280 capable of being attracted to the tablet electronic device in the protection housing 10 are disposed at an interval on the tablet 250.

It should be noted that, the second magnetic attraction piece 270 and the third magnetic attraction piece 280 can be matched with internal components of the tablet electronic device in the protection casing 10, and when the protection cover 20 is in the closed state, the second magnetic attraction piece 270 and the third magnetic attraction piece 280 are adsorbed on the tablet electronic device, so that the panel 250 can be firmly closed on the protection casing 10, and can be matched with the internal components to extinguish the screen of the tablet electronic device.

In one embodiment, referring to fig. 11, the protection cover 20 includes a first upper outer skin 100, a first supporting sheet layer 200 and a first lower outer skin 300, which are sequentially stacked, and a second magnetic element 270 and a third magnetic element 280 are disposed between the first upper outer skin 100 and the first supporting sheet layer 200.

Thus, the second magnetic attraction member 270 and the third magnetic attraction member 280 are hidden inside the protection cover 20 to improve the aesthetic appearance of the protection cover 20.

It is understood that the first magnetic member 260 is also disposed between the first upper outer skin 100 and the first support sheet layer 200.

Specifically, the first support sheet layer 200 includes support sheets corresponding to the first back sheet 210, the second back sheet 230, and the panel 250, respectively, and the support sheets are disposed at intervals therebetween, and the first upper skin 100 and the first lower skin 300 are fixedly connected to each other at the intervals to form the first flexible portion 220 and the second flexible portion 240.

In another embodiment, referring to fig. 12, the supporting module 40 includes a second upper outer skin 400, a second supporting sheet 500 and a second lower outer skin 600 which are sequentially stacked, and the fourth magnetic attraction element 430 and the fifth magnetic attraction element 440 are disposed between the second upper outer skin 400 and the second supporting sheet 500.

The fourth magnetic attraction element 430 and the fifth magnetic attraction element 440 are hidden inside the supporting module 40, and have the same effect as the first magnetic attraction element 260, the second magnetic attraction element 270 and the third magnetic attraction element 280, which are hidden inside the protecting cover 20, and thus the description thereof is omitted.

Specifically, the second support sheet layer 500 includes support pieces respectively corresponding to the first support plate 411, the second support plate 412, the third support plate 421, the fourth support plate 422, and the fifth support plate 423, and the support pieces are spaced apart from each other, and the second upper outer skin 400 and the second lower outer skin 600 are fixedly connected to each other at the respective spaces to form the third flexible part 413, the fourth flexible part 424, the fifth flexible part 425, the sixth flexible part 426, and the seventh flexible part 427.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above examples only represent some embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, without departing from the concept of the present invention, several variations and modifications can be made, which all fall within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (10)

1. A tablet electronic device protective cover, comprising:

a protective housing;

the protective cover comprises a first back plate, a first flexible part, a second back plate, a second flexible part and a panel which are sequentially connected along the width direction of the protective shell, the first back plate is connected to the back of the protective shell, the second back plate has a first rotating position and a second rotating position relative to the first back plate, the second back plate is attached to the protective shell when rotating to the first rotating position, and when the second back plate rotates to the second rotating position, the second back plate, the protective shell and the panel enclose a triangular support structure to transversely support the protective shell; and

the supporting module comprises a first supporting structure and a second supporting structure movably arranged on the first supporting structure, the first supporting structure is connected to the protective shell, the second supporting structure is connected to the first back plate, the first supporting structure and the second supporting structure can be arranged along the length direction of the protective shell, the length direction of the protective shell is bent towards the opposite direction respectively, and a triangular supporting structure is formed by enclosing the protective shell, and the protective shell is supported vertically.

2. The tablet electronic device protective cover according to claim 1, wherein the first support structure comprises a first support plate, a third flexible portion and a second support plate connected in sequence along the length direction of the protective housing, the second support structure comprises a third support plate, a fourth flexible portion and a fourth support plate connected in sequence along the length direction of the protective housing, an end of the third support plate far away from the fourth support plate is flexibly connected with the first support plate, and an end of the fourth support plate far away from the third support plate is flexibly connected with the second support plate through a fifth flexible portion;

in the process that the first supporting structure and the second supporting structure are bent, the fourth supporting plate is attached to the second supporting plate, and a combined part formed by the fourth supporting plate and the second supporting plate, the first supporting plate and the third supporting plate are enclosed to form the triangular supporting structure.

3. The protective case for tablet electronic devices according to claim 2, wherein a limiting member is disposed on a surface of the first back plate and/or the second back plate close to the protective case, and when the second support plate encloses the triangular support structure, the second support plate abuts against the limiting member.

4. The protective cover for tablet electronic devices according to claim 3, wherein a fourth magnetic member is disposed on the second supporting plate, and a fifth magnetic member corresponding to the fourth magnetic member is disposed on the fourth supporting plate.

5. A tablet electronic device case according to any one of claims 2-4 wherein the first support plate is fixedly attached to the protective case and at least part of the third support plate is fixedly attached to the first back plate.

6. The tablet electronic device case of any one of claims 2-4, wherein the second support structure further comprises a fifth support plate flexibly connected to the third support plate at an end distal from the fourth support plate by a sixth flexible portion, and flexibly connected to the first support plate at an end distal from the third support plate by a seventh flexible portion.

7. A tablet electronic device protective cover according to any one of claims 2 to 4, wherein a first notch is formed in a side of the first support plate adjacent to the second support plate, a second notch is formed in a side of the second support plate adjacent to the first support plate, and the second notch communicates with the first notch to form a window area for placing the second support structure.

8. The protective cover for the tablet electronic device according to any one of claims 1 to 4, wherein a magnetic member is disposed on a back surface of the protective housing, and a first magnetic member corresponding to the magnetic member is disposed on the first back plate.

9. A protective cover for a tablet electronic device according to any one of claims 1 to 4 wherein a second magnetic attraction member and a third magnetic attraction member are provided at intervals on the panel and can be attracted to the tablet electronic device inside the protective cover.

10. The protective cover for tablet electronic devices of claim 9, wherein the protective cover comprises a first upper outer skin, a first supporting sheet layer and a first lower outer skin, which are stacked in sequence, and the second magnetic attraction member and the third magnetic attraction member are disposed between the first upper outer skin and the first supporting sheet layer.

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