Foldable support of mobile terminal

Abstract

The utility model provides a foldable support of a mobile terminal, which comprises a folding arm, a magnetic attraction seat and a base, the magnetic attraction seat and the base are respectively and rotatably connected to two ends of the folding arm, the base comprises a bottom box and a surface cover, the surface cover is rotatably connected with the folding arm, a rotary column is vertically arranged on the surface of the surface cover facing the bottom box, and the rotary column is rotatably connected with the folding arm. A through hole is formed in the surface, facing the surface cover, of the bottom box, the rotating column penetrates through the through hole and extends into the bottom box, an annular groove is formed in the rotating column, and a ball extruding and holding mechanism used for being matched with the annular groove is arranged in the position, around the rotating column, in the bottom box. According to the base of the foldable support, a traditional planetary gear meshing type rotating mechanism is replaced by the enclasping mechanism with the annular grooves and the balls in an extrusion fit mode, the enclasping damping of the balls is easier to overcome when the base rotates, rotation is smoother, and the mechanism is not prone to being damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of brackets, and in particular to a foldable bracket for a mobile terminal. Background Art

[0002] A mobile phone holder is a device installed in a car's center console, desktop, or other place to secure a mobile phone. To adjust the phone's rotational direction, a mobile phone holder typically features a rotating base. Existing low-cost mobile phone holders often use a gear mechanism to control the rotating base. However, these gear-controlled mobile phone holders rotate erratically, and the meshing gears are prone to wear and damage after prolonged use, resulting in a short lifespan.

[0003] Therefore, the existing technology still needs to be improved and developed. Utility Model Content

[0004] The utility model provides a foldable bracket for a mobile terminal, aiming to solve the technical problems mentioned in the background art existing in the prior art.

[0005] The technical solution of the utility model is as follows:

[0006] A foldable bracket for a mobile terminal comprises a folding arm and a magnetic seat and a base rotatably connected to both ends of the folding arm, the base comprising a bottom box and a face cover, the face cover being rotatably connected to the folding arm, a rotating column being vertically provided on the surface of the face cover facing the bottom box, a through hole being provided on the surface of the bottom box facing the face cover, the rotating column extending into the interior of the bottom box through the through hole, an annular groove being provided on the rotating column, and a ball squeezing and clamping mechanism for cooperating with the annular groove being provided in the bottom box around the rotating column.

[0007] In an optional embodiment of the present invention, the ball squeezing and clamping mechanism includes a ring sleeve arranged around the rotating column, and a plurality of through screw holes are arranged in an array on the side of the ring sleeve. A ball is arranged at one end of the through screw hole close to the rotating column, and an adjusting screw is arranged at one end of the through screw hole away from the rotating column, and the adjusting screw is used to squeeze the ball into the annular groove.

[0008] In an optional embodiment of the present invention, a sinking groove is provided on the surface of the bottom box around the through hole, and a damping pad is provided in the sinking groove.

[0009] In an optional embodiment of the present invention, a pushing block is provided in the through screw hole between the adjusting screw and the ball, and a hemispherical groove adapted to the contour of the ball is provided on the side of the pushing block facing the ball.

[0010] In an optional embodiment of the present invention, a detachable bottom plate is provided on a side of the bottom box facing away from the surface cover, and the ball squeezing and clamping mechanism is installed on the inner surface of the detachable bottom plate.

[0011] In an optional embodiment of the present invention, an adhesive pad is provided on the outer surface of the detachable bottom plate.

[0012] In an optional embodiment of the present invention, a fastening tool through-hole is provided on the side wall of the bottom box opposite to the through screw hole.

[0013] In an optional embodiment of the present invention, the magnetic seat and the base are both rotatably connected to the folding arm via a damping shaft.

[0014] In an optional embodiment of the present invention, when the foldable bracket is folded, the magnetic seat rotates and folds toward the first surface of the folding arm, and the base rotates and folds toward the second surface of the folding arm, and the first surface and the second surface are opposite surfaces.

[0015] In an optional embodiment of the present invention, the magnetic seat includes an annular shell and a magnetic ring arranged inside the annular shell.

[0016] The beneficial effects are as follows: The present invention provides a foldable stand for a mobile terminal, comprising a folding arm and a magnetic seat and a base rotatably connected to both ends of the folding arm, the base comprising a bottom box and a surface cover, the surface cover being rotatably connected to the folding arm, a rotating column being vertically provided on the surface of the surface cover facing the bottom box, a through hole being provided on the surface of the bottom box facing the surface cover, the rotating column extending through the through hole into the interior of the bottom box, an annular groove being provided on the rotating column, and a ball extrusion and clamping mechanism for cooperating with the annular groove being provided in the bottom box around the rotating column. The base of the foldable stand of the present invention adopts a clamping mechanism that cooperates with an annular groove and ball extrusion to replace the traditional planetary gear meshing rotation mechanism. It is easier to overcome the ball's clamping damping when the base rotates, the rotation is smoother, and the mechanism is less susceptible to damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The present invention is a schematic diagram of a foldable stand of a mobile terminal in an unfolded state.

[0018] Figure 2 The figure is a cross-sectional view of a foldable bracket for a mobile terminal according to the present invention.

[0019] Figure 3 for Figure 2 Enlarged view of area A in the middle.

[0020] Figure 4This is an exploded view of a base of the utility model.

[0021] The reference numerals in the figures are as follows:

[0022] 10-folding arm; 20-magnetic base; 30-base; 40-annular shell; 50-magnetic ring; 60-bottom box; 70-face cover; 80-rotating column; 90-through hole; 100-annular groove; 110-ball squeezing and clamping mechanism; 120-ring sleeve; 130-through screw hole; 140-ball; 150-adjusting screw; 160-sunk groove; 170-damping pad; 180-pushing block; 190-hemispherical groove; 200-removable base plate; 210-adhesive pad; 220-fastening tool perforation. DETAILED DESCRIPTION

[0023] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0024] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0025] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0026] Reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Thus, when the phrases "in one embodiment" or "in some embodiments" appear in various places throughout this specification, not all references are to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0027] See also Figure 1The present invention provides a foldable bracket for a mobile terminal, comprising a folding arm 10 and a magnetic seat 20 and a base 30 rotatably connected to both ends of the folding arm 10, for example, in order to prevent the folded magnetic seat 20 and the base 30 from being easily unfolded, the magnetic seat 20 and the base 30 are both rotatably connected to the folding arm 10 through a damping shaft; in terms of the folding method, in order to prevent the folding of the magnetic seat 20 and the base 30 from interfering with each other and making it more convenient to unfold, for example, the magnetic seat 20 is rotated to fold toward the first surface of the folding arm 10 (the lower surface of the folding arm 10 in the figure), and the base 30 is rotated to fold toward the second surface of the folding arm 10 (the upper surface of the folding arm 10 in the figure), and the first surface and the second surface are opposite surfaces.

[0028] See also Figure 2 In the present invention, the magnetic seat 20 includes an annular housing 40 and a magnetic ring 50 disposed inside the annular housing 40; see Figure 3 and Figure 4 The base 30 includes a bottom box 60 (exemplarily circular) and a surface cover 70 (exemplarily circular), and the base 30 is rotatably connected to the folding arm 10 through the surface cover 70.

[0029] In this utility model, see Figure 2 、 Figure 3 and Figure 4 A rotating post 80 is vertically provided on the surface of the cover 70 facing the bottom box 60 (exemplarily, the rotating post 80 is centrally provided on the cover 70), a through hole 90 is provided on the surface of the bottom box 60 facing the cover 70, the rotating post 80 extends into the interior of the bottom box 60 through the through hole 90, an annular groove 100 is provided on the rotating post 80, and a ball squeezing and holding mechanism 110 for cooperating with the annular groove 100 is provided in the bottom box 60 around the rotating post 80 (see Figure 2 In the present invention, the ball squeezing and clamping mechanism 110 is used to clamp the rotating column 80 by squeezing and fitting the ball annular groove. In the present invention, when someone applies a rotational force to the surface cover 70 that is large enough, the rotating column 80 can overcome the clamping force of the ball squeezing and clamping mechanism 110 and the surface contact friction between the surface cover 70 and the bottom box 60 and rotate. When no rotational force is applied manually, the surface cover 70 is restrained from rotating to a certain extent by the clamping force of the ball squeezing and clamping mechanism 110 and the surface contact friction between the surface cover 70 and the bottom box 60.

[0030] In an optional embodiment of the present invention, in order to further increase the friction between the surface cover 70 and the bottom box 60, see Figure 2 、 Figure 3 and Figure 4 The bottom box 60 is provided with a sunken groove 160 around the through hole 90. A damping pad 170 is disposed within the sunken groove 160. The damping pad 170 is in frictional contact with the surface of the cover 70. The material of the damping pad 170 may be, for example, foam or rubber. In this embodiment, when the cover 70 needs to be rotated, the damping pad 170 can be disconnected by slightly pulling the cover 70, and then rotating the cover 70.

[0031] In an optional embodiment of the present invention, see Figure 2 、 Figure 3 and Figure 4 The ball squeezing and clamping mechanism 110 includes a ring sleeve 120 arranged around the rotating column 80. A plurality of through-screw holes 130 are arranged in an array on the side surface of the ring sleeve 120. A ball 140 is arranged at one end of the through-screw hole 130 close to the rotating column 80, and an adjusting screw 150 is arranged at the end of the through-screw hole 130 away from the rotating column 80. The adjusting screw 150 is used to squeeze the ball 140 into the annular groove 100. In the present invention, the adjusting screw 150 can directly push the ball 140 into the annular groove 100. Of course, in order to prevent the adjusting screw 150 from damaging the ball 140, a pushing block 180 can be further arranged in the through-screw hole 130 between the adjusting screw 150 and the ball 140. The pushing block 180 is provided with a hemispherical groove 190 that matches the contour of the ball 140 on the side facing the ball 140.

[0032] In another optional embodiment of the present invention, the screw hole on the ring sleeve 120 can be passed through one end of the rotating column 80 and closed at the other end; a spring is arranged inside the screw hole to drive the ball 140 to be clamped into the annular groove 100 and tightly hold the rotating column 80.

[0033] In an optional embodiment of the present invention, see Figure 2 、 Figure 3 and Figure 4 The bottom box 60 is provided with a removable bottom plate 200 on a side facing away from the cover 70, and the ball-pressing and clamping mechanism 110 is mounted on the inner surface of the removable bottom plate 200. In this embodiment, the ball-pressing and clamping mechanism 110 can be more conveniently aligned with the rotating column 80. At the same time, after the ball-pressing and clamping mechanism 110 clamps the rotating column 80, the ball-pressing and clamping mechanism 110 can also prevent the removable bottom plate 200 from falling.

[0034] In an optional embodiment of the present invention, see Figure 3 and Figure 4 The outer surface of the detachable bottom plate 200 is provided with an adhesive pad 210. Furthermore, a release film is provided on the bottom surface of the adhesive pad 210. When the bottom box 60 needs to be fixed, the release film can be torn off and adhered to the car center console or desktop.

[0035] In an optional embodiment of the present invention, see Figure 4 A fastening tool hole 220 is provided on the side wall of the bottom box 60 opposite the through screw hole 130. The fastening tool hole 220 is used to further tighten the adjustment screw 150 with a fastening tool after the ball squeezing and clamping mechanism 110 becomes loose to a certain extent during long-term use of the bracket, thereby extending the service life of the bracket.

[0036] In summary, the present invention provides a foldable stand for a mobile terminal, comprising a folding arm and a magnetic seat and a base rotatably connected to the two ends of the folding arm, the base comprising a bottom box and a face cover, the face cover being rotatably connected to the folding arm, a rotating column being vertically provided on the surface of the face cover facing the bottom box, a through hole being provided on the surface of the bottom box facing the face cover, the rotating column extending through the through hole into the interior of the bottom box, an annular groove being provided on the rotating column, and a ball extrusion and clamping mechanism for cooperating with the annular groove being provided in the bottom box around the rotating column. The base of the foldable stand of the present invention adopts a clamping mechanism that cooperates with an annular groove and ball extrusion to replace the traditional planetary gear meshing rotation mechanism. It is easier to overcome the clamping damping of the ball when the base rotates, the rotation is smoother, and the mechanism is less susceptible to damage.

[0037] Although the present invention has been disclosed above with reference to preferred embodiments, the above preferred embodiments are not intended to limit the present invention. A person skilled in the art may make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be based on the scope defined by the claims.

Claims

1. A foldable bracket for a mobile terminal, comprising a foldable arm and a magnetic seat and a base rotatably connected to both ends of the foldable arm, characterized in that: The base includes a bottom box and a surface cover, the surface cover is rotatably connected to the folding arm, a rotating column is vertically arranged on the surface of the surface cover facing the bottom box, a through hole is arranged on the surface of the bottom box facing the surface cover, the rotating column extends into the interior of the bottom box through the through hole, an annular groove is arranged on the rotating column, and a ball squeezing and clamping mechanism for cooperating with the annular groove is arranged in the bottom box around the rotating column.

2. The foldable stand for a mobile terminal according to claim 1, characterized in that: The ball squeezing and clamping mechanism includes a ring sleeve arranged around the rotating column, and a plurality of through screw holes are arranged in an array on the side of the ring sleeve. A ball is arranged at one end of the through screw hole close to the rotating column, and an adjusting screw is arranged at one end of the through screw hole away from the rotating column. The adjusting screw is used to squeeze the ball into the annular groove.

3. The foldable stand for a mobile terminal according to claim 2, characterized in that: A sinking groove is arranged on the surface of the bottom box around the through hole, and a damping pad is arranged in the sinking groove.

4. The foldable stand for a mobile terminal according to claim 2 or 3, characterized in that: A pushing block is arranged in the through screw hole between the adjusting screw and the ball, and a hemispherical groove matching the contour of the ball is arranged on a side of the pushing block facing the ball.

5. The foldable stand for a mobile terminal according to claim 4, characterized in that: A detachable bottom plate is arranged on a side of the bottom box facing away from the surface cover, and the ball squeezing and clamping mechanism is installed on the inner surface of the detachable bottom plate.

6. The foldable stand for a mobile terminal according to claim 5, characterized in that: An adhesive pad is arranged on the outer surface of the detachable bottom plate.

7. The foldable stand for a mobile terminal according to claim 2, characterized in that: A fastening tool through hole is arranged on the side wall of the bottom box opposite to the through screw hole.

8. The foldable stand for a mobile terminal according to claim 1, characterized in that: The magnetic seat and the base are both rotatably connected to the folding arm via a damping shaft.

9. The foldable stand for a mobile terminal according to claim 1, characterized in that: When the foldable bracket is folded, the magnetic seat rotates and folds toward the first surface of the folding arm, and the base rotates and folds toward the second surface of the folding arm, and the first surface and the second surface are opposite surfaces.

10. The foldable stand for a mobile terminal according to claim 1, characterized in that: The magnetic suction seat comprises an annular shell and a magnetic ring arranged inside the annular shell.

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