CN219780190U

CN219780190U - Support protective housing

Info

Publication number: CN219780190U
Application number: CN202320342492.7U
Authority: CN
Inventors: 伍徇忠; 魏伟; 王明
Original assignee: Shenzhen Ranvoo Technology Co Ltd
Current assignee: Shenzhen Ranvoo Technology Co Ltd
Priority date: 2023-02-20
Filing date: 2023-02-20
Publication date: 2023-09-29
Anticipated expiration: 2033-02-20

Abstract

The utility model provides a support protective shell which comprises a shell and a support assembly, wherein a side frame of the shell is arranged on a backboard of the shell in a surrounding manner; the first support, the second support and the third support of the support assembly are sequentially arranged on the periphery of the side frame, the second support is respectively connected with the first support and the third support in a rotating mode, one end, far away from the second support, of the first support is connected with the side frame in a rotating mode, one end, far away from the second support, of the third support is connected with the side frame in a rotating mode, the protective shell further comprises a limiting structure, and the limiting structure is used for limiting rotation of the third support when the first support and the second support rotate simultaneously or limiting rotation of the first support when the second support and the third support rotate simultaneously; because the bracket component encloses the outside of locating the side frame, the bracket component has avoided wireless charger magnetism to inhale the back position setting that is fixed in the bracket protective housing to the bracket component can not influence wireless charger and carry out wireless charging to the mobile phone.

Description

Support protective housing

Technical Field

The utility model relates to the technical field of electronic equipment accessories, in particular to a support protective shell.

Background

In order to release both hands when a user uses a mobile phone to carry out video call or watch a film, a protection shell with a support function is generally selected to be sleeved on the mobile phone and matched with the mobile phone, an included angle is formed between the protection shell and the support to be unfolded, and the support can support electronic equipment such as the mobile phone sleeved with the protection shell on a desktop in a transverse state.

Because the support is two independent electronic equipment accessories with the protective housing, the support needs to be fixed in the back of protective housing through modes such as magnetism is inhaled, viscose or moulding plastics, and the support has certain thickness and generally all can be outstanding in the surface setting of protective housing, and when the protective housing cover that has the support function was on the cell-phone, because of the support outstanding in the surface of protective housing, the support can interfere wireless charger to carry out wireless charging to the cell-phone of the protective housing that has the support function to make wireless charger can not normally carry out wireless charging to the cell-phone. Meanwhile, when the support structure of the protective shell is improved, stability of the support in supporting effect on the protective shell is considered.

Disclosure of Invention

In view of the above, the present utility model provides a protective case for a stand.

The embodiment of the utility model provides a support protective shell,

the device comprises a shell and a bracket assembly, wherein the shell comprises a back plate and side frames, and the side frames are arranged around the periphery of the back plate;

the support assembly comprises a first support, a second support and a third support, wherein the first support, the second support and the third support are sequentially arranged on the periphery of the side frame, two ends of the second support are respectively connected with the first support and the third support in a rotating mode, one end, far away from the second support, of the first support is connected with the side frame in a rotating mode, and one end, far away from the second support, of the third support is connected with the side frame in a rotating mode;

the protective housing still includes limit structure, limit structure is used for limiting when first support with the rotation of second support simultaneously the rotation of third support, perhaps when second support with the rotation of third support simultaneously the rotation of first support.

In an embodiment, the limit structure includes a first limit structure and a second limit structure;

the first limiting structure is positioned between the first bracket and the side frame and is used for limiting the rotation of the first bracket when the second bracket and the third bracket rotate simultaneously;

the second limiting structure is located between the third support and the side frame and is used for limiting rotation of the third support when the first support and the second support rotate simultaneously.

In an embodiment, the first support includes a first straight section, a second straight section and a first arc section located between the first straight section and the second straight section, the first limiting structure includes a first limiting portion and a second limiting portion, the first limiting portion is disposed on one side of the side frame, which is close to the second straight section, and the second limiting portion is disposed on the second straight section and can be mutually clamped with the first limiting portion.

In an embodiment, one of the first limiting portion and the second limiting portion is of a convex structure, and the other of the first limiting portion and the second limiting portion is of a concave structure.

In an embodiment, the first limiting structure further includes a first magnetic member and a second magnetic member, the first magnetic member is disposed on the first support, the second magnetic member is disposed on the side frame, and the first magnetic member may be magnetically attracted to the second magnetic member.

In one embodiment, the third bracket comprises a third straight section, a fourth straight section, and a second arcuate section between the third straight section and the fourth straight section;

the second limiting structure comprises a third limiting part and a fourth limiting part, the third limiting part is arranged on one side, close to the third straight section, of the side frame, and the fourth limiting part is arranged on the third straight section and can be mutually clamped with the third limiting part.

In an embodiment, one of the third limiting portion and the fourth limiting portion is of a convex portion structure, and the other of the third limiting portion and the fourth limiting portion is of a groove structure.

In an embodiment, the second limiting structure further includes a third magnetic member and a fourth magnetic member, the third magnetic member is disposed on the third support, the fourth magnetic member is disposed on the side frame, and the third magnetic member may be magnetically attracted to the fourth magnetic member.

In an embodiment, the length of the support and protection shell is L, and the distance from the end of the first straight section away from the second straight section to the second straight section is X, where: x is more than or equal to 0.2L.

In an embodiment, the width of the protective bracket is H, and the distance from the end of the fourth straight section away from the third straight section to the third straight section is Y, wherein: y is more than or equal to 0.2H.

In an embodiment, a key structure is movably mounted on the third straight section, a deformable movable portion is disposed on the side frame, and the key structure can selectively contact with the movable portion.

In an embodiment, a mounting groove is concavely formed in one side, far away from the side frame, of the third straight section, a through hole is formed in the bottom of the mounting groove, the key structure is movably arranged in the mounting groove, and at least part of the key structure can penetrate through the through hole to be in contact with the movable part.

In an embodiment, the through holes include a first through hole and a second through hole;

the key structure comprises a pressing part, an elastic piece and an anti-falling part, wherein the anti-falling part is provided with a limiting hole, and the anti-falling part can be movably clamped at one end, close to the side frame, of the second through hole;

one side of the pressing part is convexly provided with a first bulge and a second bulge respectively, the pressing part is arranged in the mounting groove, the first bulge is inserted in the first through hole and can selectively contact with the movable part, the second bulge is clamped in the limiting hole, and two ends of the elastic piece are respectively connected with the pressing part and the bottom of the mounting groove.

In an embodiment, the axis of rotation of the first bracket relative to the side frame and the axis of rotation of the second bracket relative to the third bracket are collinear with each other, and the axis of rotation of the second bracket relative to the first bracket and the axis of rotation of the third bracket relative to the side frame are collinear with each other.

Compared with the prior art, the support protective housing provided by the utility model has the advantages that the limiting structure is used for limiting the rotation of the third support when the first support and the second support rotate simultaneously, or limiting the rotation of the first support when the second support and the third support rotate simultaneously, so that the first support and the second support can stably support the housing on the tabletop in a longitudinal posture when the first support and the second support rotate to a preset supporting angle simultaneously, or the second support and the third support can stably support the housing on the tabletop in a transverse posture when the second support and the third support rotate to another preset supporting angle simultaneously; meanwhile, the support assembly is arranged on the outer side of the side frame in a surrounding mode, and the support assembly avoids the back position of the support protective shell, which is fixed to the support protective shell through magnetic attraction of the wireless charger, so that the support assembly cannot influence the wireless charger to wirelessly charge the mobile phone.

Drawings

Fig. 1 is a schematic view of a stent protecting case of the present utility model.

Fig. 2 is a first exploded view of the protective case of the stand of fig. 1.

Fig. 3 is a second exploded view of the stent protecting case of fig. 1.

Fig. 4 is a third exploded view of the protective case of the stand of fig. 1.

Fig. 5 is an exploded view of the bracket assembly of fig. 1.

Fig. 6 is a fourth exploded view of the protective case of the stand of fig. 1.

Fig. 7 is a schematic view of the protective case of the stand of fig. 1 in a first state.

Fig. 8 is a schematic view of the protective case of fig. 1 in a second state.

Detailed Description

Before the embodiments are explained in detail, it is to be understood that the utility model is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the drawings. The utility model is capable of other embodiments and of being practiced or of being carried out in various ways. Also, it is to be understood that the phraseology and terminology used herein is for the purpose of description and should not be regarded as limiting. The use of the terms "comprising," "including," "having," and the like are intended to encompass the items listed thereafter and equivalents thereof as well as additional items. In particular, when "a certain element" is described, the present utility model is not limited to the number of the element as one, but may include a plurality of the elements.

As shown in fig. 1 to 8, a support protective housing 10 includes a housing and a support assembly, the housing includes a back plate 21 and a side frame 22, the side frame 22 is disposed at a periphery of the back plate 21 to form a receiving cavity 23, the support assembly includes a first support 30, a second support 40 and a third support 50, the first support 30, the second support 40 and the third support 50 are sequentially disposed around an outer side of the side frame 22, two ends of the second support 40 are respectively rotatably connected to the first support 30 and the third support 50, one end of the first support 30 far from the second support 40 is rotatably connected to the side frame 22, one end of the third support 50 far from the second support 40 is rotatably connected to the side frame 22, the limit structure is used for limiting rotation of the third support 50 when the first support 30 and the second support 40 are simultaneously rotated, or limiting rotation of the first support 30 when the second support 40 and the third support 50 are simultaneously rotated, or for limiting rotation of the third support 50 when the first support 30 and the third support 40 are simultaneously rotated, or for stabilizing a preset angle between the first support 40 and the second support 30 and the first support 40 can be simultaneously rotated to a preset angle, and the second support 30 can be simultaneously rotated to a stable position; meanwhile, the bracket component is arranged on the periphery of the side frame 22 away from the accommodating cavity 23 in a surrounding mode, and avoids the position, fixed to the bracket protection shell 10, of the wireless charger in a magnetic attraction mode, so that the wireless charger cannot be affected by the bracket component to charge the mobile phone wirelessly.

In an embodiment, the axis of rotation of the opposite side frame 22 of the first bracket 30 is collinear with the axis of rotation of the second bracket 40 relative to the third bracket 50, and the axis of rotation of the second bracket 40 relative to the first bracket 30 is collinear with the axis of rotation of the opposite side frame 22 of the third bracket 50; because the axis of rotation of the first bracket 30 relative to the side frame 22 and the axis of rotation of the second bracket 40 relative to the third bracket 50 are collinear with each other, the axis of rotation of the second bracket 40 relative to the first bracket 30 and the axis of rotation of the third bracket 50 relative to the side frame 22 are collinear with each other, so that the first bracket 30 and the second bracket 40 can jointly and smoothly rotate to a preset supporting angle relative to the side frame 22, and the bracket assembly can support the housing on the tabletop in a longitudinal posture (refer to fig. 7); the second bracket 40 and the third bracket 50 can be rotated together and smoothly to another predetermined supporting angle with respect to the side frame 22 so that the bracket assembly can support the housing on the table top in a lateral posture (refer to fig. 8); that is, the stand-off case 10 can selectively support the electronic device on the desk in a longitudinal or lateral posture.

Referring to fig. 7 and 8, it should be noted that the preset support angle is greater than 0 ° and less than 180 °. The first bracket 30 is indirectly rotatably connected to the side frame 22 through the first rotating member 31, or the first bracket 30 is directly rotatably connected to the side frame 22 through the first rotating member 31. The third bracket 50 is indirectly rotatably connected to the side frame 22 through the fourth rotating member 61, or the third bracket 50 is directly rotatably connected to the side frame 22 through the fourth rotating member 61.

As shown in fig. 1 to 5, in the embodiment, the bracket assembly further includes a first rotating member 31, a second rotating member 41, a third rotating member 51, and a fourth rotating member 61, the first bracket 30 is rotatably connected to the side frame 22 through the first rotating member 31, the first bracket 30 is rotatably connected to the second bracket 40 through the second rotating member 41, the second bracket 40 is rotatably connected to the third bracket 50 through the third rotating member 51, the third bracket 50 is rotatably connected to the side frame 22 through the fourth rotating member 61, specifically, the first rotating member 31 is fixedly connected to the side frame 22, and the first bracket 30 is rotatably connected to the rotating member; the second rotating member 41 is fixedly connected with the first bracket 30, and at least part of the second bracket 40 is positioned at the periphery of the first bracket 30 away from the accommodating cavity 23 and is rotationally connected with the rotating member; the third rotating member 51 is fixedly connected with the third bracket 50, and the second bracket 40 is at least partially positioned on the periphery of the third bracket 50 away from the accommodating cavity 23 and is rotationally connected with the third rotating member 51; the fourth rotating member 61 is fixedly connected to the side frame 22, and the fourth rotating member 61 is rotatably connected to the third bracket 50.

In the embodiment, the bracket assembly further includes a fourth bracket 60, where the first bracket 30, the second bracket 40, the third bracket 50 and the fourth bracket 60 are sequentially surrounded on the outer side of the side frame 22, and the fourth bracket 60 is fixedly connected with the side frame 22, the first bracket 30 is rotationally connected with the fourth bracket 60 through the first rotating member 31, the third bracket 50 is rotationally connected with the fourth bracket 60 through the fourth rotating member 61, specifically, the first rotating member 31 is fixedly connected with the fourth bracket 60, the first bracket 30 is at least partially located on a side of the fourth bracket 60 far from the accommodating cavity 23 and is rotationally connected with the first rotating member 31, the fourth rotating member 61 is fixedly connected with the fourth bracket 60, and the third bracket 50 is at least partially located on a side of the fourth bracket 60 far from the accommodating cavity 23 and is rotationally connected with the third rotating member 51.

As shown in fig. 1 to 6, in the embodiment, the first bracket 30 includes a first straight section 301, a second straight section 302, and a first arc section 303 located between the first straight section 301 and the second straight section 302, where the first straight section 301 and the second straight section 302 are disposed at a preset angle, the first straight section 301 is rotationally connected with the side frame 22 through the first rotating member 31, the length of the bracket protecting shell 10 is L, and a distance from a side of the first straight section 301 away from the second straight section 302 to the second arc section 503 is X, where: when X is more than or equal to 0.2L and X and L meet that X is more than or equal to 0.2L, the first bracket 30 and the second bracket 40 rotate to a preset supporting angle relative to the side frame 22, and the first bracket 30 and the second bracket 40 can stably support the shell on the tabletop in a longitudinal posture.

In an embodiment, the limiting structure includes a first limiting structure and a second limiting structure, the first limiting structure is located between the first support 30 and the side frame 22, the first limiting structure is used for limiting rotation of the first support 30 when the second support 40 and the third support 50 rotate simultaneously, that is, the first limiting structure alone plays a role in limiting rotation of the first support 30, the second limiting structure is located between the third support 50 and the side frame 22, the second limiting structure is used for limiting rotation of the third support 50 when the first support 30 and the second support 40 rotate simultaneously, that is, the second limiting structure alone plays a role in limiting rotation of the third support 50, when the first support 30, the second support 40 and the third support 50 are all accommodated in the side frame 22, and when a user selects to rotate the first support 30 and the second support 40 together relative to the housing, the second limiting structure can limit rotation of the third support 50, so as to prevent occurrence of interference caused by rotation of the third support 50 relative to the first support 30 and the second support 40 relative to the housing, thereby ensuring smooth rotation of the first support 30 and the second support 40 relative to the housing. When the first bracket 30, the second bracket 40 and the third bracket 50 are all accommodated in the side frame 22, and the user selects to rotate the second bracket 40 and the third bracket 50 together relative to the housing, the first limiting structure can limit the rotation of the first bracket 30, so as to prevent the rotation of the first bracket 30 relative to the housing from interfering with the rotation of the second bracket 40 and the third bracket 50 together, thereby ensuring that the second bracket 40 and the third bracket 50 can smoothly rotate relative to the housing.

In the embodiment, the first limiting structure includes a first limiting portion 221 and a second limiting portion 322, the first limiting portion 221 is disposed on one side of the side frame 22 near the second straight section 302, the second limiting portion 322 is disposed on the second straight section 302 and can be engaged with the first limiting portion 221, specifically, one of the first limiting portion 221 and the second limiting portion 322 is a protruding portion structure, and the other is a recessed portion structure, in the embodiment of the utility model, the first limiting portion 221 is a protruding portion structure, and the second limiting portion 322 is a recessed portion structure, when the second bracket 40 and the third bracket 50 rotate to a preset supporting angle relative to the side frame 22, the first limiting portion 221 and the second limiting portion 322 are engaged with each other, so that the second straight section 302 can be stably attached to the side frame 22, that is, the first bracket 30 can be stably attached to the side frame 22, and the situation that the second straight section 302 is tilted relative to the first straight section 301 and is separated from the side frame 22 is prevented, and the second bracket 40 and the third bracket 50 can stably support the side frame 22 until the electronic device can be stably supported on the lateral table top.

In the embodiment, the first limiting structure further includes a first magnetic member 311 and a second magnetic member 222, the first magnetic member 311 is disposed on the first bracket 30, the second magnetic member 222 is disposed on the side frame 22, and the first magnetic member 311 can be magnetically connected with the second magnetic member 222, when the first bracket 30 is received on the side frame 22, the first magnetic member 311 and the second magnetic member 222 are magnetically attracted to each other, so that the first bracket 30 can be stably received on the side frame 22; when the opposite side frames 22 of the second support 40 and the third support 50 rotate to the preset supporting angle, the first magnetic member 311 and the second magnetic member 222 magnetically attract each other, so that the second straight section 302 can be stably attached to the side frame 22, and the second straight section 302 is prevented from being warped and separated from the side frame 22, and further the second support 40 and the third support 50 can firmly support the opposite side frame 22 and stably support the electronic device on the desktop in a transverse posture.

In the embodiment, the third bracket 50 includes a third straight section 501, a fourth straight section 502, and a second arc section 503 located between the third straight section 501 and the fourth straight section 502, the third straight section 501 is disposed at a predetermined angle on the fourth straight section 502, the fourth straight section 502 is rotationally connected with the side frame 22 through the fourth rotating member 61, the width of the bracket protecting housing 10 is H, and the distance from the side of the fourth straight section 502 away from the third straight section 501 to the third straight section 501 is Y, wherein: y is more than or equal to 0.2H. When Y and H satisfy Y being greater than or equal to 0.2H, when the opposite side frames 22 of the second bracket 40 and the third bracket 50 rotate to a preset supporting angle, the second bracket 40 and the third bracket 50 can stably support the shell on the desktop in a transverse posture. In the embodiment, the second limiting structure includes a third limiting portion and a fourth limiting portion, the third limiting portion 223 is disposed on one side of the side frame 22 near the third straight section 501, the fourth limiting portion 511 is disposed on the third straight section 501 and can be engaged with the third limiting portion 223, specifically, one of the third limiting portion 223 and the fourth limiting portion 511 is a convex portion structure, and the other is a concave portion structure. In the embodiment of the utility model, the third limiting portion 223 is located on the protruding portion, and the fourth limiting portion 511 is located on the recessed portion, when the first bracket 30 and the second bracket 40 rotate to a preset supporting angle relative to the side frame 22, the third limiting portion 223 and the fourth limiting portion 511 are engaged with each other, so that the third straight section 501 can be stably attached to the side frame 22, that is, the third bracket 50 can be stably attached to the side frame 22, such that the situation that the third straight section 501 is warped relative to the fourth straight section 502 and is separated from the side frame 22 is prevented, and further the first bracket 30 and the second bracket 40 can firmly support the side frame 22, and can stably support the electronic device on the desktop in a longitudinal posture.

In the embodiment, the second limiting structure further includes a third magnetic member 531 and a fourth magnetic member 224, the third magnetic member 531 is disposed on the third support 50, the fourth magnetic member 224 is disposed on the side frame 22, and the third magnetic member 531 and the fourth magnetic member 224 can be magnetically connected. When the third bracket 50 is received on the side frame 22, the third magnetic member 531 and the fourth magnetic member 224 magnetically attract each other, so that the third bracket 50 can be stably received on the side frame 22; when the first support 30 and the second support 40 rotate to the preset supporting angles relative to the side frame 22, the third magnetic piece 531 and the fourth magnetic piece 224 magnetically attract each other, so that the third straight section 501 can be stably attached to the side frame 22, and the third straight section 501 is prevented from being warped and separated from the side frame 22, and further the first support 30 and the second support 40 can firmly support the side frame 22 and stably support the electronic device on the desktop in a longitudinal posture.

In an embodiment, the third straight section 501 is movably provided with a key structure, and the side frame 22 is provided with a movable portion 225 capable of being deformed, and the key structure can be selectively contacted with the movable portion 225. When the support protective case 10 is sleeved on the electronic device, the movable portion 225 aligns with the function key of the electronic device and plays a role in preventing the function key from being scratched, while the third support 50 can be movably opposite to the side frame 22, the third support 50 is accommodated in the side frame 22, the key structure aligns with the movable portion 225, and the user presses the key structure to squeeze the movable portion 225 to regulate the function key of the electronic device.

Further, a mounting groove 512 is concavely formed on one side of the third straight section 501 away from the accommodating cavity 23, a through hole is formed at the bottom of the mounting groove 512, the key structure is movably disposed in the mounting groove 512, and at least part of the key structure can pass through the through hole to contact with the movable portion 225. Specifically, the through hole includes a first through hole 503 and a second through hole 504, the key structure includes a pressing portion 71, an elastic member 72 and an anti-disengaging portion 73, the anti-disengaging portion 73 is provided with a limiting hole, the anti-disengaging portion 73 can be movably clamped on one side of the second through hole 504 close to the side frame 22, a first protrusion 711 and a second protrusion 712 are respectively protruding on one side of the pressing portion 71, the pressing portion 71 is disposed in the mounting groove 512, the first protrusion 711 can be movably inserted into the first through hole 503 and can selectively contact with the movable portion 225, the second protrusion 712 can be movably clamped on the limiting hole, the pressing portion 71 is prevented from being separated from the mounting groove 512 by the anti-disengaging portion 73, two ends of the elastic member 72 are respectively connected with bottoms of the pressing portion 71 and the mounting groove 512, and the elastic member 72 is mounted between the pressing portion 71 and the bottoms of the mounting groove 512, so that the first protrusion 711 on the pressing portion 71 is contracted in the first through hole 503, that is not formed in the process of rotating the side frame 22 opposite to the third bracket 50, and when the pressing portion 71 is used, the first protrusion 711 protrudes out of the first protrusion portion 503 to press the electronic device 225, so that the electronic device is regulated and controlled.

In summary, according to the support protective case provided by the utility model, the limiting structure is used for limiting the rotation of the third support when the first support and the second support rotate simultaneously, or limiting the rotation of the first support when the second support and the third support rotate simultaneously, so that the first support and the second support can stably support the shell on the tabletop in a longitudinal posture when the first support and the second support rotate to a preset supporting angle simultaneously, or the second support and the third support can stably support the shell on the tabletop in a transverse posture when the second support and the third support rotate to another preset supporting angle simultaneously; meanwhile, the support assembly is arranged on the outer side of the side frame in a surrounding mode, and the support assembly avoids the back position of the support protective shell, which is fixed to the support protective shell through magnetic attraction of the wireless charger, so that the support assembly cannot influence the wireless charger to wirelessly charge the mobile phone.

The concepts described herein may be embodied in other forms without departing from the spirit or characteristics thereof. The particular embodiments disclosed are illustrative and not restrictive. The scope of the utility model is, therefore, indicated by the appended claims rather than by the foregoing description. Any changes which come within the meaning and range of equivalency of the claims are to be embraced within their scope.

Claims

1. The support protective shell is characterized by comprising a shell and a support assembly, wherein the shell comprises a back plate and side frames, and the side frames are arranged around the periphery of the back plate;

2. The protective case of claim 1, wherein the limit structure comprises a first limit structure and a second limit structure;

3. The protective case of claim 2, wherein the first bracket includes a first straight section, a second straight section, and a first arc section located between the first straight section and the second straight section, the first limiting structure includes a first limiting portion and a second limiting portion, the first limiting portion is disposed on a side of the side frame adjacent to the second straight section, and the second limiting portion is disposed on the second straight section and is capable of being engaged with the first limiting portion.

4. The protective case of claim 3, wherein one of the first and second limiting portions is a convex structure and the other is a concave structure.

5. The protective case of claim 3, wherein the first limiting structure further comprises a first magnetic member and a second magnetic member, the first magnetic member is disposed on the first bracket, the second magnetic member is disposed on the side frame, and the first magnetic member is magnetically attracted to the second magnetic member.

6. The protective brace of any of claims 2-5, wherein the third brace comprises a third straight section, a fourth straight section, and a second arcuate section positioned between the third straight section and the fourth straight section;

7. The protective case of claim 6, wherein one of the third and fourth limiting portions is a convex portion structure and the other is a concave portion structure.

8. The protective case of claim 6, wherein the second limiting structure further comprises a third magnetic member and a fourth magnetic member, the third magnetic member is disposed on the third bracket, the fourth magnetic member is disposed on the side frame, and the third magnetic member is magnetically attracted to the fourth magnetic member.

9. A protective case according to claim 3, wherein the protective case has a length L and the first straight section is distant from the end of the second straight section by a distance X from the second straight section, wherein: x is more than or equal to 0.2L.

10. The protective brace of claim 6, wherein the protective brace has a width H and the fourth straight segment is spaced from an end of the third straight segment by a distance Y, wherein: y is more than or equal to 0.2H.

11. The protective case of claim 6, wherein the third straight section is movably provided with a key structure, the side frame is provided with a movable portion capable of being deformed, and the key structure is selectively contacted with the movable portion.

12. The protective case of claim 11, wherein a mounting groove is concavely formed in a side of the third straight section away from the side frame, a through hole is formed in a bottom of the mounting groove, the key structure is movably disposed in the mounting groove, and at least part of the key structure can pass through the through hole to be in contact with the movable portion.

13. The protective case of claim 12, wherein the through-holes comprise a first through-hole and a second through-hole;

14. The protective case of claim 1, wherein the axis of rotation of the first bracket relative to the side frame and the axis of rotation of the second bracket relative to the third bracket are collinear with each other, and wherein the axis of rotation of the second bracket relative to the first bracket and the axis of rotation of the third bracket relative to the side frame are collinear with each other.