Holder for electronic devices

Abstract

A fixer for an electronic device comprises a positioning member having a base, an engagement ring arranged at intervals above the base, a track groove being arranged on the top surface of the engagement ring, a starting stop edge and a terminal stop edge being formed at the two ends of the track groove respectively, and a buckle groove being formed between the base and the engagement ring; and a rotating member having an axial column having a stop wing protruding radially above the axial column and an annular supporting platform protruding radially below, wherein at least three wings are extended axially downward from the periphery of the supporting platform, wherein at least two wings are respectively provided with a buckle hook capable of buckling the buckle groove, and another wing is radially extended from a limit plate arranged in the track groove; when the rotating member rotates relative to the positioning member, the limit plate is in contact with the terminal stop edge or the starting stop edge, and the stop wing and the supporting platform jointly clamp the electronic device, so as to lock or unlock the electronic device.

Description

Technical Field

[0001] The present invention relates to a fixer, and in particular to a fixer used for an electronic device, such as an M.2 solid state hard disk, a Wi-Fi wireless network card, a 3G network card or a circuit board. Background Art

[0002] For an electronic device, such as an M.2 solid-state hard disk, one end has a plug-in portion with a plurality of contact terminals, and the other end has a semicircular positioning groove for positioning. The contact portion is plugged into a plate, such as a default connector on a printed circuit board, and the positioning groove at the other end is clamped on a fixture, which includes a positioning member plugged into the plate, the positioning member having a column with an axially opened plug-in hole, the top surface of the column having a supporting recess for mounting the positioning groove of the electronic device; and a clamping member having a clamping sheet, the top surface of the clamping sheet axially extending a fixing pin inserted into the plug-in hole, so that the clamping sheet closes the supporting recess and clamps the positioning groove together with the supporting recess, so that the electronic device can be fixed on the plate and form an electrical connection with the connector.

[0003] The fixing pin is provided with a positioning buckle groove, and the insertion hole is provided with a positioning convex ring corresponding to the position of the positioning buckle groove. When the fixing pin is inserted into the insertion hole, the positioning buckle groove and the positioning convex ring interfere with each other to achieve the fixing effect of the clamping member being buckled to the positioning member. Since the aforementioned buckle structure is repeatedly plugged in and out, the positioning buckle groove and the positioning convex ring are worn, thereby reducing the holding force during fixing, and even losing the fixing effect due to no interference function after multiple uses, so it needs to be improved. Summary of the invention

[0004] The main purpose of the present invention is to provide a fixing device for an electronic device, which utilizes a rotating member to rotate and position on a positioning member, so that after the retaining wing of the rotating member and the supporting platform are rotated to a positioning state, the retaining wing will form a locking state for the electronic device, such as an M.2 solid state drive, a Wi-Fi wireless network card, a 3G network card or a circuit board.

[0005] To achieve the aforementioned purpose, the technical means adopted by the present invention provides a fixture for an electronic device, which includes a positioning member, which has a base, a coupling ring is arranged at intervals above the base, a rail groove is arranged on the top surface of the coupling ring, the two ends of the rail groove respectively form a starting stop edge and a terminal stop edge, and a buckle groove is formed between the base and the coupling ring; and the bottom surface of the base further includes a fixing structure for being connected to a plate; and a rotating member, which has a shaft column in the axial direction, a stop wing is radially protruded on the top of the shaft column, and an annular support plane for the electronic device to straddle is radially protruded on the bottom A platform is provided so that a gap is formed between the retaining wing and the supporting platform, wherein at least three wing pieces extend axially downward from the periphery of the supporting platform, wherein at least two of the wing pieces are respectively provided with hooks capable of buckling with the buckle groove, and the wing pieces extend radially outward from a limiting piece arranged in the track groove and touching the starting stop edge or the terminal stop edge as a rotation stop; when the rotating member rotates relative to the positioning member, the limiting piece abuts against the terminal stop edge or the starting stop edge, and whether the retaining wing and the supporting platform jointly clamp the electronic device to lock or unlock the electronic device.

[0006] In one embodiment, the support platform is used to straddle the positioning recess of the electronic device, and the shaft column is provided with a guiding slope at the opposite end of the retaining wing for the positioning recess to move downward and guide, so that the positioning recess is sleeved on the shaft column.

[0007] In one embodiment, the fixing structure includes a socket block at the bottom of the base that is sleeved into the plate hole of the plate, and an arrow-shaped fixing hook that extends axially from the bottom of the socket block; the fixing hook extends outwardly from a pair of elastic hook pieces, and the free ends of the pair of elastic hook pieces are relatively provided with a plurality of stepped teeth arranged in a step-like manner so as to be buckled into plates of different thicknesses or plate holes of different apertures.

[0008] In one embodiment, at least one outer surface of the fixing hook is axially protruded with an auxiliary fixing rib capable of increasing the degree of engagement with the plate hole.

[0009] In one embodiment, a fixing protrusion is protruding from the longitudinal outer surface of the fixing hook, so that the fixing hook and the fixing protrusion can be inserted into the T-shaped plate hole.

[0010] In one embodiment, an auxiliary fixing rib capable of increasing the degree of engagement with the plate hole is axially protruded from the outer surface of the fixing hook and / or the axial outer surface of the fixing hook opposite thereto.

[0011] In one embodiment, the positioning member and the rotating member are axially provided with a pivot structure, and adjacent surfaces of the pivot structure are relatively provided with a positioning mechanism, so that the rotating member has a positioning function relative to the positioning member.

[0012] In one embodiment, the pivot structure includes a spindle extending axially from the top surface of the coupling ring; and an axial hole axially arranged on the bottom surface of the shaft column and provided with the spindle sleeve; and the positioning mechanism includes a pair of positioning grooves formed on the inner circumference of the axial hole corresponding to the positions of the starting stop edge and the terminal stop edge; and at least one positioning tenon protruding from the outer circumference of the spindle at the position corresponding to the positioning groove; wherein during the rotation process, at least one of the positioning grooves will disengage from one of the positioning tenons originally engaged with the positioning grooves, and when the limiting plate touches the terminal stop edge, at least one positioning tenon will be engaged with the pair of positioning grooves in a transposed manner.

[0013] In one embodiment, a gripping piece for the user to hold and rotate extends radially from the top surface of the shaft column and / or the retaining wing. When the gripping piece is rotated, the retaining wing, the supporting platform, the buckles and the limiting piece also rotate synchronously.

[0014] In one embodiment, the bottom surface of the gripping piece is further connected to the top surface of the shaft column and / or the retaining wing by a connecting piece.

[0015] In one embodiment, a slot for inserting a tool is radially formed on the top surface of the shaft column and / or the retaining wing. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] To further disclose the specific technical content of the present invention, please refer to the drawings, wherein:

[0017] Figure 1 and Figure 2 Schematically showing a three-dimensional exploded view of the first embodiment of the fastener of the present invention at two different viewing angles;

[0018] Figure 3 A schematic diagram of a three-dimensional view of the first embodiment of the fastener of the present invention after assembly is shown, which shows an unlocked state;

[0019] Figure 4 Schematically shows Figure 3 a cross-sectional view taken along line AA;

[0020] Figure 5 Schematically shows Figure 3 a cross-sectional view taken along line BB;

[0021] Figure 6 A schematic perspective view of the first embodiment of the fastener of the present invention after operation is shown, showing a locked state;

[0022] Figure 7 Schematically shows Figure 6 a cross-sectional view taken along line CC;

[0023] Figures 8 to 11 The schematic diagram shows the assembly flow chart of the first embodiment of the fixing device of the present invention combined with the electronic device and the plate;

[0024] Fig.12 Schematically shows Fig.10 a cross-sectional view taken along line DD;

[0025] Fig.13 Schematically shows Fig.11 a cross-sectional view taken along line EE;

[0026] Fig.14 A perspective view schematically shows a second embodiment of the fastener of the present invention;

[0027] Fig.15 A schematic perspective exploded view of a second embodiment of a fastener and a plate of the present invention is shown;

[0028] Fig.16 A perspective view schematically shows a third embodiment of a fastener of the present invention;

[0029] Fig.17 A perspective view schematically shows a fourth embodiment of a fastener according to the present invention.

[0030] [Description of Reference Numerals]

[0031] 1- positioning member; 11- base;

[0032] 111-conical column; 12-mandrel;

[0033] 121-positioning tenon; 13-engaging ring;

[0034] 131-rail groove; 132-starting retaining edge;

[0035] 133-terminal stop edge; 134-buckle groove;

[0036] 14-fixed structure; 141-socket block;

[0037] 142-fixed hook; 143-elastic hook piece;

[0038] 144-tooth step; 145-auxiliary fixing rib;

[0039] 146-Fixed convex portion;

[0040] 2-rotating member; 21-shaft column;

[0041] 211- guiding inclined surface; 212- shaft hole;

[0042] 213-positioning groove; 22-blocking wing;

[0043] 23-support platform; 24-wing;

[0044] 241-hook; 242-limiting piece;

[0045] 25- gripping piece; 251 connecting piece;

[0046] 26-slots;

[0047] 3-plate; 31-plate hole;

[0048] 32-connector;

[0049] 4-electronic device; 41-contact part;

[0050] 42- positioning concave hole; DETAILED DESCRIPTION

[0051] like Figure 1 and Figure 2 As shown, it discloses a holder for electronic devices, such as a holder for an M.2 solid state drive, a Wi-Fi wireless network card, a 3G network card or a circuit board. In a first embodiment, the holder is made of an insulating material, such as a solid object formed by plastic injection molding, and therefore, the holder includes a positioning member 1 and a rotating member 2.

[0052] The positioning member 1 has a geometric shape, such as a circular base 11, and an engagement ring 13 is provided above the base 11 at intervals. The top surface of the engagement ring 13 is provided with an arc-shaped track groove 131, and the two ends of the track groove 131 respectively form a starting stop edge 132 and a terminal stop edge 133, and a buckle groove 134 is formed between the base 11 and the engagement ring 13; and a cone 111 (shown in Fig.12 and Fig.13 ) to be connected.

[0053] In order to enable the positioning member 1 to be fixed to the plate 3 (see Figures 8 to 9 ), in addition, the bottom surface of the base 11 further includes a fixing structure 14 that can be fixed to the plate 3, please refer to Figures 1 to 3 The fixing structure 14 includes a sleeve block 141 provided at the bottom of the base 11 and sleeved in the plate hole 31, and an arrow-shaped fixing hook 142 axially extending from the bottom of the sleeve block 141. The fixing hook 142 extends a pair of elastic hook pieces 143 outwardly, and the free ends of the pair of elastic hook pieces 143 are provided with a plurality of step-shaped tooth steps 144 arranged in a stepped manner so as to be buckled in the plates 3 of different thicknesses or the plate holes 31 of different apertures, so as to expand the scope of use.

[0054] Furthermore, at least one outer surface of the fixing hook 142 is axially protruded with an auxiliary fixing rib 145 that can increase the degree of engagement with the plate hole 31. In other words, the auxiliary fixing rib 145 can increase the degree of engagement with the plate hole 31 according to the tolerance of the plate hole 31 and utilize the plastic elastic deformation of the auxiliary fixing rib 145 itself to increase the fixing function.

[0055] The rotating member 2 has a shaft column 21 in the axial direction, and a retaining wing 22 is radially protruded above the shaft column 21. Figures 1 to 3 As shown, the retaining wing 22 is a half-moon-shaped sheet. An annular supporting platform 23 is radially protruded below the shaft column 21, so that a gap is formed between the retaining wing 22 and the supporting platform 23. Furthermore, the shaft column 21 is provided with a guiding inclined surface 211 at the opposite end of the retaining wing 22.

[0056] In addition, at least three winglets 24 extend axially downward from the periphery of the support platform 23, wherein at least two of the winglets 24 are each provided with a hook 241 capable of engaging with the buckle groove 134, and another winglet 24 extends radially from a limit plate 242 provided in the rail groove 131, so that the limit plate 242 touches the starting stop edge 132 or the terminal stop edge 133 as a rotation stop.

[0057] Furthermore, the positioning member 1 and the rotating member 2 are axially provided with a pivot structure, and the adjacent surface of the pivot structure is provided with a positioning mechanism, so that the rotating member 2 has a positioning function relative to the positioning member 1. The pivot structure includes a spindle 12 extending axially from the top surface of the engagement ring 13; and an axial hole 212 provided on the bottom surface of the shaft column 21 and for the spindle 12 to be sleeved. The inner circumference of the axial hole 212 is provided with a positioning mechanism opposite to the outer circumference of the spindle 12, such as Figure 2 The positioning mechanism shown in the figure includes: the inner circumference of the shaft hole 212 is provided with a positioning groove 213 at the position corresponding to the starting stop edge 132 and the terminal stop edge 133; and the outer circumference of the spindle 12 is provided with at least one positioning tenon 121 at the position corresponding to the positioning groove 213. Figure 4 As shown, a pair of positioning tenons 121 are protruded from the outer circumference of the spindle 12 at positions corresponding to the positioning grooves 213 to form a buckling configuration.

[0058] Furthermore, a gripping piece 25 for the user to hold is radially extended from the top surface of the shaft column 21 and / or the blocking wing 22, so that when the gripping piece 25 is rotated, the blocking wing 22, the supporting platform 23, the buckle hooks 241 and the limiting piece 242 can rotate synchronously. The bottom surface of the gripping piece 25 is further connected to the top surface of the shaft column 21 and / or the blocking wing 22 by a connecting piece 251 to facilitate operation.

[0059] like Figure 3 As shown, when the rotating member 2 and the positioning member 1 are combined, it is only necessary to sleeve the wing pieces 24 of the rotating member 2 on the engaging ring 13 of the positioning member 1, so that the respective hooks 241 of the at least two wing pieces 24 are buckled in the buckle groove 134, so that the rotating member 2 will not axially escape from the positioning member 1, and the limiting piece 242 of the other wing piece 24 extends into the rail groove 131, and the spindle 12 is inserted into the shaft hole 212, and the pair of positioning tenons 121 are buckled into the pair of positioning grooves 213.

[0060] like Figure 4 As shown, it shows that the spindle 12 is inserted into the shaft hole 212, and the pair of positioning tenons 121 are buckled into the pair of positioning grooves 213 to form a positioning relationship.

[0061] like Figure 5 As shown, the limiting piece 242 extends into the rail groove 131 and abuts against the starting stop edge 132, and the limiting piece 242 touches the starting stop edge 132 or the terminal stop edge 133 to serve as a rotation stop.

[0062] See also Figure 6 If the electronic device 4, such as an M.2 solid state drive, a Wi-Fi wireless network card, a 3G network card or a circuit board, is to be locked, the user only needs to rotate the gripping piece 25 so that the shaft hole 212 of the rotating member 2 rotates with the spindle 12 of the positioning member 1 as the axis, so that the blocking wing 22, the supporting platform 23, the hooks 241 and the limiting piece 242 also rotate synchronously, so that the limiting piece 242 moves along the rail groove 131 until it touches the terminal blocking edge 133 (shown in FIG. Figure 7 ); and the pair of positioning grooves 213 will at least disengage one of the positioning tenons 121 originally engaged therewith during the rotation process, and when the limiting piece 242 touches the terminal stop edge 133, at least one of the positioning tenons 121 and the pair of positioning grooves 213 will be engaged in a transposition manner, so that the rotating member 2 has a positioning function for the positioning member 1 and has an obvious segment operation feel; and the blocking wing 22 rotates to the opposite direction so as to move the electronic device 4 (see Figures 9 to 11 ) forms a lock.

[0063] Therefore, through the above description, the fixing device provides that when the rotating member 2 rotates relative to the positioning member 1, the limiting plate 242 is in contact with the terminal stop edge 133 or the starting stop edge 132, and whether the stop wing 22 and the supporting platform 23 jointly clamp the electronic device 4, so as to lock or unlock the electronic device 4.

[0064] When in the locked state, the retaining wing 22 and the supporting platform 23 together clamp the positioning recess 42 of the electronic device 4, so that the electronic device 4 is firmly positioned and does not shake.

[0065] like Figures 8 to 13 , which shows a schematic diagram of the installation process of the first embodiment of the fixing device, the plate 3 and the electronic device 4, wherein the plate 3 is implemented as a circuit board, and the electronic device 4 is implemented as an M.2 solid state drive, a Wi-Fi wireless network card, a 3G network card or a circuit board. When assembling, the assembler of the assembly plant first aligns the sleeve block 141, the fixed hook 142 and the elastic hook piece 143 of the fixing structure 14 of the positioning member 1 with the oblong plate hole 31 of the plate 3 and inserts them (shown in FIG. Figure 8), so that the sleeve block 141 is sleeved in the plate hole 31, and a pair of the equal tooth steps 144 of the pair of elastic hook pieces 143 are buckled to a pair of long side edges of the plate hole 31, and the fixing structure 14 is used to firmly connect the positioning member 1 to the plate 3 (shown in Fig. 9 ).

[0066] Next, the contact portion 41 of one end of the electronic device 4 is inserted into the connector 32 on the plate 3; and the positioning recess 42 at the other end is moved downward and placed along the guide slope 211 into the support platform 23 (as shown in FIG. Fig.10 and Fig.12 ), so that the positioning recessed hole 42 is sleeved on the shaft column 21. At this time, the assembler rotates the holding piece 25 in a clockwise direction, so that the blocking wing 22, the supporting platform 23, the hooks 241 and the limiting piece 242 also rotate synchronously, so that the limiting piece 242 moves along the track groove 131 until it touches the terminal blocking edge 133, and the pair of positioning grooves 213 will at least disengage from one of the positioning tenons 121 that were originally locked with it during the rotation process, and when the limiting piece 242 touches the terminal blocking edge 133, at least one of the positioning tenons 121 and the pair of positioning grooves 213 are replaced and locked, and the blocking wing 22 rotates to the opposite side, so that the blocking wing 22 and the supporting platform 23 jointly clamp the other end of the electronic device 4, so as to form a locking mode for the electronic device 4 (as shown in Fig.11 and Fig.13 ), and the positioning member 1 is fixedly connected to the plate 3, so that the electronic device 4 can be positioned firmly, not only preventing shaking, but also ensuring the electrical connection between the electronic device and the connector 32.

[0067] like Figure 14 to Figure 15 As shown, it discloses a second embodiment of the fastener. Compared with the first embodiment, the same reference numerals (symbols) are used to represent the same components in the second embodiment. Since the second embodiment shares many common components with the first embodiment, only the differences between the two are described in detail below.

[0068] The fixing hook 142 of this embodiment has a fixing protrusion 146 protruding from its axial outer surface. The fixing hook 142 and the fixing protrusion 146 can be inserted into the T-shaped plate hole 31 (see Fig.15 ) and provide a foolproof (anti-misinsertion) effect by means of the fixing protrusion 146.

[0069] Therefore, in this embodiment, the outer surface of the fixing protrusion 146 and / or the outer surface of the opposite fixing hook 142 are axially protruded with auxiliary fixing ribs 145 that can increase the degree of engagement with the plate hole 31. The auxiliary fixing ribs 145 can respond to the tolerance of the plate hole 31 and utilize the plastic elastic deformation of the auxiliary fixing ribs 145 themselves to increase the degree of engagement with the plate hole 31, thereby increasing the fixing function.

[0070] like Fig.16 As shown, it discloses the third embodiment of the fastener. Compared with the first embodiment, the same reference numerals (symbols) are used to represent the same components in the third embodiment. Since the second embodiment shares many common components with the first embodiment, only the differences between the two are described in detail below.

[0071] The gripping piece 25 of this embodiment is different from the gripping piece 25 of the first embodiment only in shape, and the bottom surface of the gripping piece 25 of this embodiment is also connected to the top surface of the shaft column 21 and / or the retaining wing 22 by a connecting piece 251. Therefore, the scope of claim of this embodiment is still the same as that of the first embodiment.

[0072] like Fig.17 As shown, it discloses the fourth embodiment of the fastener. Compared with the first embodiment, the same reference numerals (symbols) are used to represent the same components in the fourth embodiment. Since the second embodiment shares many common components with the first embodiment, only the differences between the two are described in detail below.

[0073] The present embodiment does not provide the holding piece 25 and the connecting piece 251 shown in the first embodiment, but instead radially opens a slot 26 on the top surface of the shaft column 21 and / or the retaining wing 22. The slot 26 is for a tool, such as a straight-shaped plug end of a screwdriver, to be inserted into, which can drive the rotating member 2 to rotate, thereby achieving the aforementioned locking or unlocking of the electronic device.

[0074] Therefore, through the implementation of the present invention, the added effect is that the blocking wing and the supporting plane are also rotated synchronously by utilizing the rotation of the rotating member on the positioning member, and the initial blocking edge and the terminal blocking edge of the limit plate on the track groove are used as the limit of the rotation angle to form the locking or unlocking of the electronic device. Furthermore, the positioning member and the rotating member are connected by a pivot structure, for example, the adjacent surface of the shaft hole and the spindle is provided with a positioning mechanism, so that the rotating member has a positioning function relative to the positioning member, and has a clear step operation feel.

[0075] The specific embodiments described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A holder for an electronic device, comprising: A positioning member, comprising a base, an engagement ring is arranged at intervals above the base, a rail groove is arranged on the top surface of the engagement ring, two ends of the rail groove form a starting stop edge and a terminal stop edge respectively, and a buckle groove is formed between the base and the engagement ring; and the bottom surface of the base further comprises a fixing structure for being connected to a plate; and The rotating member has a shaft column in the axial direction, a stop wing is radially protruded on the upper part of the shaft column, and an annular supporting platform for the electronic device to straddle is radially protruded on the lower part, so that a gap is formed between the stop wing and the supporting platform, wherein at least three wing pieces extend axially downward from the periphery of the supporting platform, wherein at least two of the wing pieces are respectively provided with hooks capable of buckling with the buckle groove, and the wing pieces radially extend out of the limit piece arranged in the track groove and touching the starting stop edge or the terminal stop edge as a rotation stop; When the rotating member rotates relative to the positioning member, the limiting piece abuts against the terminal stop edge or the starting stop edge, and the stop wing and the supporting platform jointly clamp the electronic device to lock or unlock the electronic device.

2. A fixture for an electronic device according to claim 1, wherein the support platform is provided to span the positioning recess of the electronic device, and the shaft column is provided with a guiding slope at the opposite end of the retaining wing for the positioning recess to move downward and guide, so that the positioning recess is sleeved on the shaft column.

3. A fixer for an electronic device according to claim 1, wherein the fixing structure includes a socket block provided at the bottom of the base and sleeved in a plate hole of the plate, and an arrow-shaped fixing hook extending axially from the bottom of the socket block; the fixing hook extends outwardly from a pair of elastic hook pieces, and the free ends of the pair of elastic hook pieces are relatively provided with a plurality of stepped teeth arranged in a step-like manner so as to be buckled into plates of different thicknesses or plate holes of different apertures.

4. The fixture for electronic devices according to claim 3, wherein at least one outer surface of the fixing hook is axially protruded with an auxiliary fixing rib capable of increasing the degree of engagement with the plate hole.

5. The holder for electronic devices according to claim 3, wherein a fixing protrusion is protruding from the longitudinal outer surface of the fixing hook, so that the fixing hook and the fixing protrusion can be inserted into the T-shaped plate hole.

6. The fixture for electronic devices according to claim 5, wherein the outer surface of the fixing hook and / or the axial outer surface opposite to the fixing hook are axially protruded with auxiliary fixing ribs capable of increasing the degree of engagement with the plate hole.

7. The fixture for electronic devices according to claim 1, wherein the positioning member and the rotating member are axially provided with a pivot structure, and adjacent surfaces of the pivot structure are relatively provided with positioning mechanisms, so that the rotating member has a positioning function relative to the positioning member.

8. A fixer for an electronic device according to claim 7, wherein the pivot structure includes a spindle extending axially from the top surface of the coupling ring; and an axial hole axially arranged on the bottom surface of the shaft column and provided with the spindle sleeve; and the positioning mechanism includes a pair of positioning grooves formed on the inner circumference of the axial hole corresponding to the positions of the starting stop edge and the terminal stop edge; and at least one positioning tenon protruding from the outer circumference of the spindle at the position corresponding to the positioning groove; wherein during the rotation process, at least one of the positioning grooves will disengage from one of the positioning tenons originally engaged with the positioning grooves, and when the limiting plate touches the terminal stop edge, at least one positioning tenon will be engaged with the pair of positioning grooves in a transposed manner.

9. A fixture for an electronic device according to claim 1, wherein the top surface of the shaft column and / or the retaining wing radially extends a gripping piece for the user to hold and rotate, and when the gripping piece is rotated, the retaining wing, the supporting platform, the buckle hook and the limiting piece also rotate synchronously. 10 . The holder for an electronic device according to claim 9 , wherein the bottom surface of the holding piece is further connected to the top surface of the shaft column and / or the retaining wing by a connecting piece. 11 . The fixture for an electronic device according to claim 1 , wherein a slot for inserting a tool is radially formed on a top surface of the shaft column and / or the retaining wing.

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