Support assembly and protective shell

Abstract

The utility model relates to the technical field of supports, in particular to a support assembly and a protective shell, the support assembly comprises a rotating assembly and a fixing piece, the rotating assembly is rotatably arranged on the fixing piece and comprises a ring and a base plate which are rotatably connected, a first through hole is formed in the center of the base plate, so that the base plate is annular, and the fixing piece is arranged on the fixing piece. An inner gear and an outer gear are respectively arranged on the inner side wall and the outer side wall of the first through hole; a mounting groove is formed in the fixing piece, two limiting pieces are arranged at the two ends of the inner wall of the mounting groove respectively, part of the annular area of the chassis is mounted in the mounting groove, and the two limiting pieces elastically abut against the inner gear and the outer gear respectively. The support assembly can solve the technical problem that an existing support is poor in stability when adjusted through gear matching.

Description

TECHNICAL FIELD

[0001] The utility model relates to a support technical field, especially a support assembly and protective housing. BACKGROUND

[0002] With the development of society and the progress of science and technology, the function of electronic equipment such as mobile phone, computer is more and more powerful, and is widely used in work and study, and in order to facilitate people to use electronic equipment, various supports have appeared on the market at present. The support is a kind of auxiliary accessory for placing electronic products, and a kind of electronic equipment support is used to fix or facilitate holding electronic equipment, which can be fixed on the back of electronic products such as mobile phone, and the electronic products are held by the finger ring on the support during use, but the stability of the existing support is poor when adjusting the angle by gear cooperation. UTILITY MODEL CONTENTS

[0003] To solve the technical problem that the stability of the existing support is poor when adjusting by gear cooperation, the utility model provides a support assembly and protective housing.

[0004] The technical problem of the utility model is solved by providing a support assembly, which comprises a rotating assembly and a fixing part, the rotating assembly is rotatably arranged on the fixing part, the rotating assembly comprises a finger ring and a bottom disc rotatably connected, a first through hole is formed in the center of the bottom disc, so that the bottom disc is annular, and an internal gear and an external gear are arranged on the inner side wall and the outer side wall of the first through hole respectively, an installation groove is formed in the fixing part, two limit parts are arranged at the both ends of the inner wall of the installation groove respectively, and part of the annular region of the bottom disc is installed in the installation groove, and the two limit parts are elastically abutted on the internal gear and the external gear respectively.

[0005] Preferably, the fixing part further comprises two upper guards and a lower guard fixedly connected, the two upper guards are arranged at the same side of the lower guard at intervals, the installation groove is located between the two upper guards, and the bottom surface of the installation groove is the side of the lower guard close to the upper guard.

[0006] Preferably, a containing space is arranged between the upper guard and the lower guard, the limit part is located in the containing space, and the end part of the limit part is exposed to the side wall of the installation groove.

[0007] Preferably, the fixing part further comprises two elastic parts, a sliding groove is arranged on one side of the upper guard / lower guard in the containing space, the side of the limit part away from the installation groove is connected with the elastic part and slidably placed in the sliding groove, and the limit part and the elastic part are slid in the sliding groove to move on the internal gear and the external gear respectively.

[0008] Preferably, an annular groove is formed on the outer peripheral sidewall of the base, which is located on the side far from the lower guard plate and is matched with the end of the upper guard plate for clamping.

[0009] Preferably, a second through hole is formed in the center of the ring, which is matched with the first through hole and has an area not less than that of the first through hole.

[0010] Preferably, the rotating assembly further comprises a connecting piece, and the ring and the base are rotationally connected through the connecting piece.

[0011] Preferably, a heat dissipation fin is further provided, a plurality of heat dissipation holes are formed on the heat dissipation fin, the end of the upper guard plate exposed to the first through hole is located in the first through hole, and the heat dissipation fin is connected to the side of the upper guard plate exposed to the first through hole and located in the first through hole.

[0012] Preferably, a dustproof screen is further arranged in the first through hole, and the dustproof screen is arranged at the end of the heat dissipation fin far from the ring.

[0013] The technical problem of the utility model is solved by providing a protective shell, which comprises a support assembly and a shell.

[0014] Compared with the prior art, the support assembly provided by the utility model has the following advantages.

[0015] 1. The support assembly provided by the utility model is characterized in that the limiting pieces are respectively engaged with the internal gear and the external gear on the inner and outer walls of the base to limit the base when the base rotates; specifically, the fixing piece can be fixed to the back of the electronic device, the base is installed on the fixing piece, and the base can rotate on the channel, i.e., the installation slot, defined by the fixing piece to realize 360° rotation; after the ring rotates to the position required by the user along with the base, the ring can be flipped out to hold the electronic device or be used as a support to place the electronic device on the desktop; when the base rotates, the limiting pieces are elastically deformed in the corresponding internal gear and external gear to realize movement and emit a clicking sound during the movement, thereby providing clear tactile feedback to the user and enhancing the user experience; at the same time, the two limiting pieces are matched with the internal gear and the external gear to limit the range of the base, and after the base stops rotating, the limiting pieces abut against the internal gear and the external gear, thereby ensuring the stability of the cooperation between the base and the fixing piece and avoiding displacement of the base during use of the support assembly, which is convenient for the user to use.

[0016] 2. The support assembly provided by the utility model is characterized in that the upper guard plate and the lower guard plate can form a stable installation slot and facilitate the arrangement of the limiting pieces.

[0017] 3. The bracket assembly provided in the utility model, the accommodating space provides position and space for setting the limiting piece, so that the two limiting pieces can be set inside the mounting groove.

[0018] 4. The bracket assembly provided in the utility model, the elastic piece plays a role of helping the limiting piece to elastically resist in the relative movement with the internal gear and the external gear, and the limiting piece slides in the sliding groove under the elastic force of the elastic piece in the process of elastic deformation.

[0019] 5. The bracket assembly provided in the utility model, the annular groove is matched and clamped with the end part of the lower guard plate, the end part of the lower guard plate also moves in the annular groove when the bottom disc rotates, and the stability and safety of the cooperation and rotation of the bottom disc and the fixing piece are enhanced.

[0020] 6. The bracket assembly provided in the utility model, the second through hole is used for the user to pass the fingers to hold the electronic equipment, and the second through hole does not cover the first through hole when the ring is folded and stored, so that the problem of dust accumulation is avoided.

[0021] 7. The bracket assembly provided in the utility model, the ring and the bottom disc are rotationally connected through the connecting piece, so that the ring is rotated to the position required by the user, and the ring is folded and stored when not in use to save space.

[0022] 8. The bracket assembly provided in the utility model, the heat dissipation fin is arranged in the first through hole, plays a role of dissipating the heat of the electronic equipment to the air, reduces the influence of the bracket equipment on the heat dissipation of the electronic equipment, and the heat dissipation hole can reduce the shielding area of the heat dissipation fin on the electronic equipment, so that part of the heat of the electronic equipment can be directly transmitted to the air.

[0023] 9. The bracket assembly provided in the utility model, the dust screen is arranged at one end of the heat dissipation fin away from the ring, blocks dust and other foreign matters from passing through the first through hole and the heat dissipation hole and accumulating on the electronic equipment, reduces the difficulty of cleaning the first through hole, and improves the user experience.

[0024] 10. The protective shell provided in the utility model, the shell is connected to the electronic equipment and used for protecting the electronic equipment, and the bracket assembly is arranged on the shell to assist the shell to play a supporting role or help the user to hold the electronic equipment.

DRAWING DESCRIPTION

[0025] Figure 1 It is a bracket assembly structure schematic provided by the first embodiment of the utility model Figure One .

[0026] Figure 2 It is a bracket assembly structure schematic provided by the first embodiment of the utility model Figure Two .

[0027] Figure 3It is a kind of support assembly partial section schematic view provided by the first embodiment of the utility model.

[0028] Figure 4 It is fixed part structure schematic view provided by the first embodiment of the utility model.

[0029] Figure 5 It is fixed part structure schematic view provided by the first embodiment of the utility model.

[0030] Figure 6 It is fixed part explosion schematic view provided by the first embodiment of the utility model.

[0031] Explanations of the drawings are as follows:

[0032] 1, rotating assembly;2, fixed part;3, fin;4, dust screen;

[0033] 11, chassis;12, finger ring;13, connecting piece;21, installation slot;22, limiting piece;23, upper guard plate;24, lower guard plate;25, containing space;26, elastic piece;27, sliding slot;31, heat dissipation hole;

[0034] 111, first through hole;112, internal gear;113, external gear;114, annular groove;115, containing groove;116, first gap;121, second through hole;122, second gap;221, step structure;231, installation column;241, installation hole;271, protruding part.

DETAILED DESCRIPTION

[0035] In order to make the purpose of the utility model, technical scheme and advantage more clear and explicit, the utility model is further explained in detail in the following with the drawings and embodiment.

[0036] It should be noted that the terms "first" and "second" in the specification and claims of the utility model are used to distinguish different objects, not to describe a specific order.

[0037] It should be noted that when an element is referred to as "fixed" to another element, it can be directly on another element or there can be a middle element. When an element is referred to as "connected" to another element, it can be directly connected to another element or there can be a middle element. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0038] In the utility model, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "transverse", "longitudinal" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are mainly used for better describing the utility model and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0039] In addition, the above-mentioned terms can be used to indicate other meanings in addition to the orientation or positional relationship, for example, the term "upper" can also be used to indicate a certain dependent relationship or connection relationship in some cases. For those skilled in the art, the specific meaning of these terms in the utility model can be understood according to the specific situation.

[0040] In addition, the terms "mounting", "setting", "providing", "connecting", "connecting" should be broadly understood. For example, it can be fixedly connected, detachably connected, or integrally constructed; it can be mechanically connected or electrically connected; it can be directly connected, or indirectly connected through an intermediate medium, or the internal communication between two devices, elements or components. For those skilled in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to the specific situation.

[0041] Please refer to Figure 1 , Figure 4 and Figure 5 , the utility model provides a kind of support assembly, including rotating assembly 1 and fixed part 2, rotating assembly 1 is rotatably arranged on fixed part 2, rotating assembly 1 includes rotationally connected bottom disc 11 and ring 12, first through-hole 111 is set in the center of bottom disc 11 so that bottom disc 11 is annular, and inner gear 112 and outer gear 113 are respectively arranged on the inner side wall and the outer side wall in first through-hole 111;Fixed part 2 is provided with mounting groove 21, and the inner wall of mounting groove 21 is provided with limiting piece 22 at both ends respectively, and part of annular region of bottom disc 11 is mounted in mounting groove 21, and two limiting pieces 22 are respectively elastically supported on inner gear 112 and outer gear 113.

[0042] It can be understood that the support assembly is fixed on the back of the electronic device by the fixing member 2, the chassis 11 is installed on the fixing member 2, and the chassis 11 can rotate on the channel, i.e. the installation slot 21, defined by the fixing member 2 to achieve 360° rotation; the ring 12 can be flipped out and rotated to the required position after the chassis 11 is rotated to the position required by the user, for the user to hold the electronic device or as a support to support the electronic device placed on the desktop; when the chassis 11 rotates, the limiting member 22 moves by elastically deforming in the corresponding internal gear 112 and external gear 113, and emits a click sound during the movement, providing clear tactile feedback to the user and enhancing the user experience; at the same time, compared with the cooperation structure of the limiting member 22 and the gear arranged on one side of the chassis 11, the two limiting members 22 cooperate with the internal gear 112 and the external gear 113 on both sides of the chassis 11, which is more stable in limiting the rotation range of the chassis 11; after the chassis 11 stops rotating, the limiting member 22 abuts against the internal gear 112 and the external gear 113, and the cooperation between the chassis 11 and the fixing member 2 is more stable and safe, avoiding displacement of the chassis 11 during use of the support assembly and facilitating use of the user.

[0043] Further, during the rotation of the chassis 11, different areas slide through the installation slot 21, thereby adjusting the direction and position of the ring 12 to adapt to the needs of the user.

[0044] Please refer to Figure 4 and Figure 5 , the fixing member 2 further comprises two upper guards 23 and a lower guard 24 fixedly connected, the two upper guards 23 are arranged on the same side of the lower guard 24 in a spaced manner, the installation slot 21 is located between the two upper guards 23, and the bottom surface of the installation slot 21 is the side of the lower guard 24 close to the upper guard 23. The upper guard 23 and the lower guard 24 can form a stable installation slot 21 to provide a stable movement area for the part annular area of the chassis 11, and facilitate the arrangement of the limiting member 22.

[0045] Please refer to Figure 4 , Figure 5 and Figure 6 , the exposed end of the limiting member 22 at the installation slot 21 is in a sharp structure, and a circular arc chamfer is arranged at the end of the sharp structure, so that the limiting member 22 can be matched with the teeth of the internal gear 112 / external gear 113 and smoothly transition between the internal gear 112 / external gear 113, reducing the loss of both parties in the sliding process, and prolonging the service life of the support assembly.

[0046] Further, a containing space 25 is arranged between the upper guard 23 and the lower guard 24, the limiting member 22 is located in the containing space 25, and the end of the limiting member 22 is exposed to the side wall of the installation slot 21. The containing space 25 provides a position and space for the arrangement of the limiting member 22, so that the two limiting members 22 can be arranged on the inner walls of the installation slot 21 on both sides.

[0047] Further, the fixing member 2 further comprises two elastic members 26, the upper guard plate 23 / the lower guard plate 24 is provided with a sliding groove 27 on one side in the accommodating space 25, the limiting member 22 is connected with the elastic member 26 and is slidingly placed in the sliding groove 27 away from the mounting groove 21, and the limiting member 22 is slidingly matched with the elastic member 26 in the sliding groove 27 to move on the inner gear 112 and the outer gear 113 respectively.

[0048] It can be understood that the elastic member 26 helps the limiting member 22 to elastically resist in the relative movement with the inner gear 112 and the outer gear 113, and the limiting member 22 slides in the sliding groove 27 under the elastic force of the elastic member 26 in the process of elastic deformation.

[0049] In the embodiment, the sliding groove 27 is arranged on the upper guard plate 23.

[0050] Further, the limiting member 22 is perpendicular to the tangent line of the contact point of the limiting member 22 with the inner gear 112 / outer gear 113 when placed in the sliding groove 27, so as to reduce the loss when sliding on the inner gear 112 / outer gear 113 and prolong the service life of the assembly.

[0051] It should be noted that the upper guard plate 23 and the lower guard plate 24 are arranged in parallel, which facilitates the arrangement of the sliding groove 27 in the accommodating space 25.

[0052] In the embodiment, the upper guard plate 23 is provided with a plurality of mounting columns 231 on one side in the accommodating space 25, and the lower guard plate 24 is provided with a same number of mounting holes 241 corresponding to the mounting columns 231, and the upper guard plate 23 and the lower guard plate 24 are arranged in parallel through the cooperation and connection of the mounting columns 231 and the mounting holes 241.

[0053] Alternatively, the positions of the mounting columns 231 and the mounting holes 241 can be interchanged.

[0054] Further, the sliding groove 27 is closed at one end away from the mounting groove 21, and the elastic member 26 is abutted at the closed end, so as to limit the sliding range of the limiting member 22 and avoid the limiting member 22 from deviating from the set path during the sliding process and affecting the movement of the limiting member 22.

[0055] Further, a protruding portion 271 is arranged at the opening of one end of the sliding groove 27 close to the mounting groove 21, and a step structure 221 is arranged corresponding to the protruding portion 271 at one end of the limiting member 22 exposed to the mounting groove 21. The step structure 221 is clamped with the protruding portion 271, so that the step structure 221 is always located in the sliding groove 27, avoiding the limiting member 22 from deviating from the sliding groove 27.

[0056] It can be understood that when the bottom disc 11 does not rotate, one end of the limiting piece 22 is abutted against the closed end of the sliding groove 27 through the elastic piece 26, and the other end is abutted against the step structure 221 and the inner gear 112 / outer gear 113 through the elastic force of the elastic piece 26, the activity range of the limiting piece 22 is limited through the step structure 221, it is ensured that the limiting piece 22 does not come off the sliding groove 27, the inner gear 112 / outer gear 113 is abutted against the inner and outer side walls of the bottom disc 11 to limit, the stability of the bottom disc 11 is improved, and the problems such as displacement, shaking and dislocation of the bottom disc 11 are avoided to affect the user's use; in the rotating process of the bottom disc 11, the inner gear 112 / outer gear 113 applies pressure to the limiting piece 22, the limiting piece 22 is compressed through sliding in the sliding groove 27 to realize the process of moving to the next inner gear 112 / outer gear 113, and the elastic piece 26 after compression applies elastic force to push the limiting piece 22 to abut against the inner gear 112 / outer gear 113 again to complete a moving process of the limiting piece 22.

[0057] Please refer to Figure 1 , Figure 3 and Figure 4 , an annular groove 114 is formed on the outer peripheral side wall of the bottom disc 11, the annular groove 114 is located away from the lower guard plate 24, and is matched and clamped with the end portion of the upper guard plate 23, so that the end portion of the lower guard plate 24 also moves in the annular groove 114 when the bottom disc 11 rotates, the stability and safety of the cooperation of the bottom disc 11 and the fixing piece 2 during rotation are enhanced, and the risk of the bottom disc 11 falling out of the mounting groove 21 is reduced.

[0058] Further, a second through hole 121 is formed in the center of the ring 12, the second through hole 121 is matched with the first through hole 111 and has an area not less than that of the first through hole 111. The ring 12 is annular, the second through hole 121 is used for the user's fingers to pass through and hold the electronic device, and the second through hole 121 will not cover the first through hole 111 when the ring 12 is folded and stored, so that problems such as dust accumulation are avoided.

[0059] Further, the rotating assembly 1 further comprises a connecting piece 13, the ring 12 and the bottom disc 11 are rotationally connected through the connecting piece 13, so that the ring 12 can be rotated to the position required by the user, and the ring 12 can be folded and stored when not in use to save space.

[0060] Further, a containing groove 115 is formed on the bottom disc 11 along the outer periphery of the first through hole 111, the containing groove 115 is annular, and the ring 12 can be folded and stored in the containing groove 115, so as to reduce the volume of the support assembly, make the support assembly as close as possible to the back of the electronic device after being stored, and avoid affecting the user's use of the electronic device.

[0061] Further, the surface of the ring 12 after being stored in the containing groove 115 is flush with the surface of the bottom disc 11, so as to facilitate the user's use.

[0062] Further, the connecting piece 13 is arranged in the accommodating groove 115. When the finger ring 12 rotates, the connecting end of the finger ring 12 and the bottom disc 11 is still in the mounting groove 21. The connecting end provides a support point for the finger ring 12 when the electronic device supported by the finger ring 12 is placed on the desktop, thereby improving the stability.

[0063] Further, the first notch 116 is arranged at the edge of the accommodating groove 115 away from the connecting piece 13, and the second notch 122 is arranged at the corresponding position on the finger ring 12. When the finger ring 12 is folded in the bottom disc 11, the user can turn the finger ring 12 out of the bottom disc 11 through the space formed by the first notch 116 and the second notch 122.

[0064] Further, the support assembly further comprises a heat dissipation fin 3. The end of the upper guard plate 23 close to the first through hole 111 is exposed to the first through hole 111. The heat dissipation fin 3 is connected to one side of the upper guard plate 23 exposed to the first through hole 111 and located in the first through hole 111. The heat dissipation fin 3 plays a role in dissipating the heat of the electronic device to the air, thereby reducing the influence of the support assembly on the heat dissipation of the electronic device.

[0065] Optionally, the heat dissipation fin 3 is made of metal, so that the heat dissipation fin 3 has better heat dissipation performance.

[0066] Optionally, the heat dissipation fin 3 is made of graphite material, which has better heat dissipation performance and is light and thin.

[0067] Further, a plurality of heat dissipation holes 31 are arranged on the heat dissipation fin 3. The heat dissipation holes 31 can reduce the shielding area of the heat dissipation fin 3 on the electronic device, so that part of the heat of the electronic device can be directly transmitted to the air through the heat dissipation holes 31.

[0068] Please refer to Figure 1 , Figure 2 and Figure 4 , a dust screen 4 is further arranged in the first through hole 111. The dust screen 4 is arranged at the end of the heat dissipation fin 3 away from the finger ring 12, which blocks dust and other foreign matters from passing through the first through hole 111 and the heat dissipation holes 31 and accumulating on the electronic device, thereby reducing the difficulty of cleaning the first through hole 111 and improving the user experience.

[0069] Preferably, the dust screen 4 is made of nylon screen and graphite heat dissipation material is arranged in the screen.

[0070] It should be noted that the nylon screen has good mechanical strength and flexibility, so that the dust screen 4 can withstand a certain physical pressure, and the graphite has very high thermal conductivity. When the support assembly is fixed to the back of the electronic device, the heat generated by the electronic device can be transmitted to the air through the dust screen 4 and the heat dissipation fin 3 in turn, which helps the electronic device to dissipate heat and reduces the influence of the dust screen 4 and the support assembly on the heat dissipation of the electronic device.

[0071] In summary, please refer toFigures 1 to 6 The working principle of the support assembly of the first embodiment of the utility model is as follows:

[0072] The support assembly is fixed to the back of the electronic device through the fixing part 2, and the bottom disc 11 enables the ring 12 to realize 360° rotation synchronously through rotation in the mounting groove 21; during the rotation of the bottom disc 11, the limiting part 22 cooperates with the elastic part 26 to slide in the sliding groove 27, so that the limiting part 22 can move with the internal gear 112 / external gear 113 and provide clear tactile feedback for the user, thereby improving the use experience; after the bottom disc 11 is adjusted to the required position through rotation, the limiting part 22 is abutted on the protruding part 271 and the internal gear 112 / external gear 113, thereby limiting the position of the internal gear 112 / external gear 113, and further improving the stability of the bottom disc 11 when the position is fixed, thereby facilitating the user to use; during the use of the support assembly, the dustproof net 4 in the first through hole 111 plays a dustproof role, reduces dust accumulation and facilitates the user to use, and meanwhile, the dustproof net 4 and the cooling fin 3 play a role in heat dissipation, thereby reducing the influence of the shielding of the support assembly and the dustproof net 4 on the heat dissipation of the electronic device.

[0073] Specifically, the utility model provides a protective shell, including the support assembly provided by the first embodiment, further including a shell, the support assembly is arranged on the shell, when the shell is connected to the electronic device, the user can hold the electronic device through the support assembly or place the electronic device on the external plane for use.

[0074] Please refer to Figure 1 The fixing part 2 is connected with the protective shell to realize the function of the support assembly.

[0075] Further, the fixing part 2 is fixedly connected to the protective shell through a screw, thereby improving the stability of the support assembly during work and avoiding dislocation of the support assembly to affect use.

[0076] Further, a groove is formed in the protective shell, and the bottom disc 11 is embedded in the protective shell through the groove, the groove plays a role in protecting the bottom disc 11, prolongs the service life of the support assembly, and makes the connection structure of the support assembly and the protective shell more stable.

[0077] Compared with the prior art, the support assembly provided by the utility model has the following advantages:

[0078] 1. The utility model provides a kind of support assembly, the utility model provides scheme by limiting piece, respectively with the internal gear and external gear on the inner wall and outer wall of base plate meshing, to realize the limiting of base plate when base plate rotates;Specifically, fixed part can be fixed on the back of electronic equipment, base plate is installed on fixed part, base plate can rotate on the channel, i.e. installation slot defined in fixed part to realize 360 ° rotation;After ring rotates to the position required by user with base plate, it can be turned out to hold electronic equipment for user or as support piece to place electronic equipment on desktop;When base plate rotates, limiting piece is elastically deformed in corresponding internal gear and external gear to realize movement, and click sound is emitted during movement, clear tactile feedback is provided to user, and user experience is enhanced;Meanwhile, by the cooperation of two limiting pieces with internal gear and external gear, the range of base plate is limited, after base plate stops rotating, limiting piece is supported on internal gear and external gear, the stability of the cooperation of base plate and fixed part is guaranteed, displacement of base plate during use of support assembly is avoided, and user is facilitated to use.

[0079] 2. The utility model provides a kind of support assembly, and upper guard plate and lower guard plate can form stable installation slot, and limiting piece is facilitated to set.

[0080] 3. The utility model provides a kind of support assembly, and accommodating space provides position and space for setting limiting piece, so that two limiting pieces can be set inside installation slot.

[0081] 4. The utility model provides a kind of support assembly, and elastic member plays the role of helping limiting piece to elastically support during relative motion with internal gear and external gear, and limiting piece slides in sliding groove under the elastic force of elastic member during elastic deformation.

[0082] 5. The utility model provides a kind of support assembly, and annular groove is matched with lower guard plate end portion and is connected, lower guard plate end portion also moves in annular groove when base plate rotates, so that the stability and safety of the cooperation of base plate and fixed part during rotation are enhanced.

[0083] 6. The utility model provides a kind of support assembly, and second through hole is used for the finger of user to pass through to hold electronic equipment, and second through hole does not cover first through hole when ring is folded and stored, so that dust accumulation and other problems are avoided.

[0084] 7. The utility model provides a kind of support assembly, and ring and base plate are rotatably connected by connecting piece, so that ring rotates to the position required by user, and ring is folded and stored to save space when not being used.

[0085] 8. The bracket assembly provided by the utility model, the radiating fin is arranged in the first through hole, plays a role of dissipating the heat of the electronic device to the air, reduces the influence of the bracket device on the heat dissipation of the electronic device, the heat dissipation hole can reduce the shielding area of the radiating fin on the electronic device, so that the heat of part of the electronic device can be directly transmitted to the air.

[0086] 9. The bracket assembly provided by the utility model, the dust screen is arranged at the end of the radiating fin away from the ring, blocks dust and other foreign matters from passing through the first through hole and the heat dissipation hole and accumulating on the electronic device, reduces the difficulty of cleaning the first through hole, and improves the user experience.

[0087] 10. The protective shell provided by the utility model, the shell is connected to the electronic device for protecting the electronic device, the bracket assembly is arranged on the shell to assist the shell to play a supporting role or help the user to hold the electronic device.

[0088] The above only describes the preferred embodiments of the utility model and is not used to limit the utility model, and any modification, equivalent replacement and improvement within the principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A stent assembly, characterized by: The rotating assembly and the fixed part, the rotating assembly is rotatably arranged on the fixed part, the rotating assembly includes a rotatingly connected finger ring and a base plate, the base plate is centrally provided with a first through hole to form a ring shape, and an internal gear and an external gear are arranged on the inner side wall and the outer side wall of the first through hole respectively; the fixed part is provided with a mounting groove, limiters are arranged on the inner wall of the mounting groove at both ends respectively, and part of the annular area of the base plate is mounted in the mounting groove, and the limiters are elastically abutted on the internal gear and the external gear respectively.

2. A support assembly as claimed in claim 1, wherein: The fixed part further includes two fixedly connected upper guards and a lower guard, the two upper guards are arranged at the same side of the lower guard at intervals, and the mounting groove is located between the two upper guards, and the bottom surface of the mounting groove is a side of the lower guard close to the upper guard.

3. A support assembly as claimed in claim 2, wherein: A containing space is arranged between the upper guard and the lower guard, the limiters are located in the containing space, and the end portions of the limiters are exposed to the side wall of the mounting groove.

4. A support assembly as claimed in claim 3, wherein: The fixed part further includes two elastic members, the upper guard / lower guard is provided with a sliding groove on one side in the containing space, the side of the limiter away from the mounting groove is connected with the elastic member and is slidably arranged in the sliding groove, and the limiter is matched with the elastic member to slide in the sliding groove to move on the internal gear and the external gear respectively.

5. A support assembly as claimed in claim 2, wherein: An annular groove is arranged on the outer circumferential side wall of the base plate, the annular groove is located on the side away from the lower guard, and is matched and clamped with the end portion of the upper guard.

6. A support assembly as claimed in claim 1, wherein: A second through hole is arranged in the center of the finger ring, the second through hole is matched with the first through hole and has an area not less than that of the first through hole.

7. A support assembly as claimed in claim 1, wherein: The rotating assembly further includes a connecting member, the finger ring and the base plate are rotatably connected through the connecting member.

8. A support assembly as claimed in claim 2, wherein: A heat sink is further included, a plurality of heat dissipation holes are arranged on the heat sink, the end portion of the upper guard close to the first through hole is exposed to the first through hole, and the heat sink is connected to the side of the upper guard exposed to the first through hole and located in the first through hole.

9. A support assembly as claimed in claim 8, wherein: A dustproof net is further arranged in the first through hole, and the dustproof net is arranged at the end of the heat sink away from the finger ring.

10. A protective case characterized by: The support assembly includes the support assembly of any one of claims 1-9, and further includes a shell, and the support assembly is arranged on the shell.

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