Folding mobile phone support, its opening and closing method and double shaft linkage hinge folding rivet manufacturing method

Abstract

The application discloses a folding mobile phone support and an opening and closing method thereof, and a manufacturing method of a double-shaft linkage hinge riveting part of the folding mobile phone support. Through the synergistic effect of the double-shaft linkage hinge and a dynamic fulcrum, the unfolding movement of the support is innovatively divided into two stages of rotation and lifting, thereby solving the core technical problem faced by the ultra-thin built-in support. On the one hand, the structure utilizes the dynamic fulcrum formed by the contact between the convex part and the bottom table, and automatically converts the rotating force into lifting force after reaching the preset angle, thereby realizing the adaptive optimization of the supporting angle, and more importantly, forming a reliable physical limit, which fundamentally avoids the interference between the upper hinge and the edge of the mobile phone shell groove due to excessive unfolding, and effectively prevents the plastic deformation and damage of the hinged structure. Meanwhile, since the structure adopts the double-shaft connection through the riveting part, the structural strength is greatly increased, and even if the support is opened to nearly 180 degrees, the hinge can still be ensured not to be damaged, and the support can be normally opened and closed.

Description

Technical Field

[0001] This invention relates to the field of mobile phone stands, and particularly to folding mobile phone stands, their opening and closing methods, and the manufacturing method of dual-axis linkage hinge rivet parts. Background Technology

[0002] To protect the phone and integrate a stand function, a common solution is to create a recess on the back of the phone case to accommodate a folding stand. This design aims to allow the stand to fold flat against the back of the phone case, ensuring both aesthetics and portability. However, this structure presents new technical challenges.

[0003] When the user unfolds the stand, the hinge, which is fixed to the phone case, will rotate out of the groove along with the stand body. If the unfolding angle is too large, the hinge will mechanically interfere with the edge of the groove opening and get stuck. If the user continues to apply force at this time, attempting to forcibly unfold the stand to a larger angle (such as close to 180 degrees), the huge leverage force will act directly on the hinge structure of the hinge, which can easily cause plastic deformation or permanent damage.

[0004] On the other hand, to achieve wireless charging, the overall thickness of the phone case and its housing is strictly limited, requiring the built-in folding bracket to be extremely thin. Traditional single-axis hinges, in order to provide sufficient support strength within such a thin space (e.g., requiring the total thickness of the bracket to be less than 2.7 mm), often require welding for reinforcement or increasing the diameter of the rolled section to strengthen the shaft. However, welding points are prone to uneven strength and corrosion; while increasing the rolled section directly leads to the bracket thickness exceeding the limit, protruding from the phone case surface, affecting not only the feel but also hindering the effective coupling of the wireless charging coil, resulting in charging failure.

[0005] Therefore, there is an urgent need in this field for a folding bracket solution that can be perfectly integrated into the ultra-thin receiving slot of a mobile phone case and can effectively avoid interference damage to the slot during opening and closing. Summary of the Invention

[0006] The main objective of this invention is to propose a folding phone holder and a method for manufacturing and opening / closing the folding components of its dual-axis linkage hinge. The aim is to provide a folding phone holder that can be perfectly integrated into the ultra-thin receiving slot of the phone case and can effectively avoid interference damage to the slot during the opening and closing process.

[0007] To achieve the above objectives, the present invention proposes a folding mobile phone holder, comprising a first support member, a second support member, and a dual-axis linkage hinge; The dual-axis linkage hinge includes an upper hinge fixedly connected to a first support member, a lower hinge fixedly connected to a second support member, and a rivet connecting the upper hinge and the lower hinge. The two ends of the rivet are respectively hinged to the upper hinge and the lower hinge, forming a first rotation axis and a second rotation axis; The upper hinge has a protrusion on its side wall, and the lower hinge has a base on its top wall corresponding to the movement trajectory of the protrusion. The upper hinge can rotate around the first rotation axis to realize the unfolding and folding of the first support member; When the upper hinge unfolds from the closed state, the protrusion moves synchronously with the upper hinge; When the upper hinge is unfolded to a preset angle, the protrusion moves to contact the base and forms a dynamic fulcrum; After the dynamic fulcrum is formed, the upper hinge continues to rotate, driving the stacked riveting to rotate around the second rotation axis through the dynamic fulcrum, thereby driving the first rotation axis and the first support to generate a lifting displacement.

[0008] Preferably, both the first support member and the second support member are annular flat structures.

[0009] Preferably, the first support member and the second support member are made of metal material, and the first support member has a magnet embedded in it for adsorbing and fixing the second support member when the dual-axis linkage hinge is closed.

[0010] Preferably, the second support member has a receiving groove that matches the shape of the first support member. When the dual-axis linkage hinge is in the closed state, the first support member is housed in the receiving groove.

[0011] Preferably, the first support member has a first mounting groove adapted to the shape of the upper hinge, and the upper hinge is fixedly embedded in the first mounting groove; The second support member has a second mounting groove adapted to the shape of the lower hinge, and the lower hinge is fixedly embedded in the second mounting groove; The upper hinge has an exposed first rolled portion, and the lower hinge has an exposed second rolled portion. The two ends of the folded riveting are respectively hinged to the first rolled portion and the second rolled portion to form the first rotation axis and the second rotation axis.

[0012] Preferably, the first support member also integrally extends to form a shielding portion; When the dual-axis linkage hinge is in the closed state, the blocking part is located above the first rolled structure of the upper hinge and forms a visual obstruction to it.

[0013] Preferably, the protrusion is a fan-shaped block structure.

[0014] Preferably, the second support member is detachably mounted in a positioning slot of an external device; The outer side wall of the second support member is provided with at least one pair of limiting flanges. When the second support member is placed in the positioning groove, the limiting flanges cooperate with the inner top wall of the positioning groove to prevent the second support member from detaching from the positioning groove. The bottom of the positioning groove is provided with a ring of retaining teeth corresponding to the internal area of ​​the second support member; An elastic locking block is movably disposed within the second support member, and the elastic locking block has an elastic tendency to engage with the locking teeth.

[0015] This invention also proposes an opening and closing method for a folding phone holder, applicable to the aforementioned folding phone holder, the method comprising the following steps: Unfolding step: Drive the upper hinge to unfold relative to the lower hinge around the first rotation axis; Fulcrum formation step: When the upper hinge is unfolded to a preset angle, the protrusion on the side wall of the upper hinge contacts the base on the top wall of the lower hinge and forms a dynamic fulcrum. Linked lifting step: Continue to drive the upper hinge to unfold around the first rotation axis. Through the dynamic fulcrum formed by the protrusion and the base, force the stacked riveting to rotate around the second rotation axis, thereby driving the first rotation axis and the first support member on it to generate lifting displacement.

[0016] The present invention also proposes a manufacturing method for the above-mentioned stacked riveted parts, comprising the following steps: Stamping and riveting process: Multiple metal stampings are provided, and the stampings are joined together through a stacking and riveting process to form a stacked and riveted blank; Welding reinforcement step: Welding is performed on the side of the stacked riveted blank to enhance its structural strength; Heat treatment steps: The welded stacked riveted blank is heat treated to improve its overall hardness; Surface finishing steps: Grind the heat-treated stacked riveted blanks to remove burrs and improve surface finish; Surface plating step: Chemical nickel plating is performed on the surface of the ground and riveted parts to form a metal protective layer.

[0017] This invention innovatively decomposes the unfolding motion of the bracket into two stages—rotation and lifting—through the synergistic effect of a dual-axis linkage hinge and a dynamic fulcrum, thus solving the core technical challenge faced by ultra-thin built-in brackets. On one hand, the structure utilizes the dynamic fulcrum formed by the contact between the protrusion and the base platform. After reaching a preset angle, it automatically converts rotational force into lifting force, achieving adaptive optimization of the support angle and, more importantly, establishing a reliable physical limit. This fundamentally prevents the upper hinge from interfering with the edge of the phone case groove due to over-unfolding, effectively preventing plastic deformation and damage to the hinge structure. On the other hand, by embedding the hinge into the mounting groove of the support component and using an exposed rolled-up hinge method, the overall thickness is successfully controlled within the limits required for wireless charging while ensuring support strength, perfectly balancing thinness, high strength, and functional reliability. Furthermore, the manufacturing process specifically designed for folding components further ensures the durability of the core transmission components under long-term use. This invention ultimately provides a folding bracket solution that can be perfectly integrated into ultra-thin phone cases and operate safely and stably. Attached Figure Description

[0018] Fig. 1 A schematic diagram of a folding phone holder and external devices; Fig. 2 An exploded view of a folding phone stand; Fig. 3 This is a schematic diagram of the dual-axis linkage hinge closing. Fig. 4 This is a schematic diagram illustrating the unfolding process of the hinge. Fig. 5 This is a schematic diagram showing the hinge when it is opened to approximately 180°. Detailed Implementation

[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0021] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0022] This invention proposes a foldable mobile phone holder.

[0023] In embodiments of the present invention, such as Figs. 1 to 5 As shown, the folding phone holder consists of a first support member 1, a second support member 2, and a dual-axis linkage hinge connecting the two.

[0024] The dual-axis linkage hinge includes an upper hinge 3, a lower hinge 4, and a mortise and tenon joint 5 manufactured using a special process. The upper hinge 3 is fixedly connected to the first support member 1, and the lower hinge 4 is fixedly connected to the second support member 2. The two ends of the mortise and tenon joint 5 are hinged to the upper hinge 3 and the lower hinge 4 respectively, forming a first rotation axis 100 and a second rotation axis 200 that are independent but interconnected.

[0025] Specifically, a protrusion 31 is provided on the side wall of the upper hinge 3. This protrusion 31 is preferably a fan-shaped block structure to provide a stable contact surface. A base 41 is provided on the top wall of the lower hinge 4 corresponding to the movement trajectory of the protrusion 31. When the support begins to unfold from the folded state, the upper hinge 3 rotates around the first rotation axis 100, and the protrusion 31 moves accordingly. This stage is the free unfolding stage.

[0026] Furthermore, when the upper hinge 3 unfolds to a specific preset angle, the protrusion 31 moves precisely to the position of contact with the base 41, and a dynamic fulcrum is immediately formed upon contact. The formation of this dynamic fulcrum is the turning point of the entire support and lifting action, and also constitutes a physical limit. After this, if the user continues to try to unfold the upper hinge 3, since the protrusion 31 is blocked by the base 41, the upper hinge 3 can no longer simply rotate around the first rotation axis 100. Instead, it transmits the force to the folding member 5 through the dynamic fulcrum, forcing the folding member 5 to begin rotating around the second rotation axis 200. This ingenious linkage process not only drives the first rotation axis 100 and the first support member 1 fixed thereto to produce an upward lifting displacement, realizing automatic optimization of the support angle, but more importantly, it fundamentally prevents the upper hinge 3 from unfolding to a larger angle, such as close to 180 degrees, that could cause it to interfere with the edge of the phone case groove, thus effectively avoiding damage to the hinge structure due to mechanical interference.

[0027] Specifically, to meet the stringent thickness requirements of wireless charging, the first support member 1 and the second support member 2 are preferably designed as a ring-shaped flat structure. They can be made of metal to ensure strength, and magnets 6 can be embedded in the first support member 1 to attract and fix the second support member 2 when the bracket is folded, keeping the whole structure compact.

[0028] Specifically, to achieve a perfect folded shape, a receiving groove 21 that matches the shape of the first support member 1 is formed on the second support member 2. When the bracket is folded, the first support member 1 can be smoothly embedded into the receiving groove 21, making the overall structure flush with the back of the phone case.

[0029] Specifically, to achieve extreme thinness, an embedded installation scheme is adopted. A first mounting groove 32, adapted to the shape of the upper hinge 3, is formed on the first support member 1, and the upper hinge 3 is fixedly embedded therein; a second mounting groove is formed on the second support member 2 to embed the lower hinge 4. This installation method allows the thickness of the hinge to be accommodated by the support member without adding extra thickness to the overall structure. At the same time, the upper hinge 3 and the lower hinge 4 each have an exposed first rolled portion 33 and a second rolled portion 42, and the two ends of the rivet 5 are hinged to these exposed rolled portions. This design, while ensuring smooth rotation and strength, controls the structural thickness to the maximum extent, ensuring that the total thickness is less than 2.7 mm, meeting the stringent requirement.

[0030] Specifically, to enhance aesthetics, the first support member 1 also integrally extends to form a covering part 34. When the bracket is closed, the covering part 34 is positioned directly above the rolled structure of the upper hinge 3, visually concealing it.

[0031] Specifically, the second support member 2 can be designed as a detachable structure. Its outer wall is provided with at least one pair of limiting flanges 43, which engage with the inner top wall of the positioning groove 71 of the external device 7 to prevent detachment. The bottom of the positioning groove 71 is provided with a ring of retaining teeth 72, which engage with the elastic retaining block 44 inside the second support member 2 to achieve stepless adjustment of the support angle. It should be noted that the "opening edge of the groove" mentioned in the background art corresponds to the opening edge of the positioning groove 71. When the first rotation axis 100 and the first support member 1 are raised, the first rotation axis 100 is misaligned with the opening edge of the positioning groove 71, thereby providing more space for the first support member 1 to continue rotating, thus solving the existing mechanical interference problem.

[0032] Specifically, based on the above structure, the opening and closing method of the folding phone holder of the present invention includes: Drive the upper hinge 3 to unfold around the first rotation axis 100; When unfolded to a preset angle, the protrusion 31 contacts the base 41 to form a dynamic fulcrum; Continue unfolding the upper hinge 3, and force the stacked riveted parts 5 to rotate around the second rotation axis 200 through the dynamic fulcrum, thereby driving the first support 1 to rise and avoid over-unfolding.

[0033] Specifically, to ensure the high strength and durability of the rivet 5 despite its thin dimensions, its manufacturing method includes a precision process: Stamping and riveting process: Multiple metal stampings are provided, and the stampings are joined together through a stacking and riveting process to form a stacked and riveted blank; Welding reinforcement step: Welding is performed on the side of the stacked riveted blank to enhance its structural strength; Heat treatment steps: The welded stacked riveted blank is heat treated to improve its overall hardness; Surface finishing steps: Grind the heat-treated stacked riveted blanks to remove burrs and improve surface finish; Surface plating step: Chemical nickel plating is performed on the surface of the ground and riveted parts to form a metal protective layer.

[0034] This invention innovatively decomposes the unfolding motion of the bracket into two stages—rotation and lifting—through the synergistic effect of a dual-axis linkage hinge and a dynamic fulcrum, thus solving the core technical challenge faced by ultra-thin built-in brackets. On one hand, the structure utilizes the dynamic fulcrum formed by the contact between the protrusion and the base platform. After reaching a preset angle, it automatically converts rotational force into lifting force, achieving adaptive optimization of the support angle and, more importantly, establishing a reliable physical limit. This fundamentally prevents the upper hinge from interfering with the edge of the phone case groove due to over-unfolding, effectively preventing plastic deformation and damage to the hinge structure. On the other hand, by embedding the hinge into the mounting groove of the support component and using an exposed rolled-up hinge method, the overall thickness is successfully controlled within the limits required for wireless charging while ensuring support strength, perfectly balancing thinness, high strength, and functional reliability. Furthermore, the manufacturing process specifically designed for folding components further ensures the durability of the core transmission components under long-term use. This invention ultimately provides a folding bracket solution that can be perfectly integrated into ultra-thin phone cases and operate safely and stably.

[0035] The above description is merely a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A folding phone holder, characterized in that: It includes a first support member (1), a second support member (2), and a dual-axis linkage hinge; The dual-axis linkage hinge includes an upper hinge (3) fixedly connected to the first support member (1), a lower hinge (4) fixedly connected to the second support member (2), and a rivet (5) connecting the upper hinge (3) and the lower hinge (4). The two ends of the folded riveting (5) are respectively hinged to the upper hinge (3) and the lower hinge (4) to form a first rotation axis (100) and a second rotation axis (200). The upper hinge (3) has a protrusion (31) on its side wall, and the lower hinge (4) has a base (41) on its top wall corresponding to the movement trajectory of the protrusion (31). The upper hinge (3) can rotate around the first rotation axis (100) to realize the unfolding and folding of the first support member (1); When the upper hinge (3) unfolds from the closed state, the protrusion (31) moves synchronously with the upper hinge (3); When the upper hinge (3) unfolds to a preset angle, the protrusion (31) moves to contact the base (41) and forms a dynamic fulcrum; After the dynamic fulcrum is formed, the upper hinge (3) continues to rotate, and the stacked riveting (5) is driven to rotate around the second rotation axis (200) through the dynamic fulcrum, thereby driving the first rotation axis (100) and the first support member (1) to generate lifting displacement; The first support member (1) has a first mounting groove (32) that matches the shape of the upper hinge (3), and the upper hinge (3) is fixedly embedded in the first mounting groove (32); The second support member (2) has a second mounting groove that matches the shape of the lower hinge (4), and the lower hinge (4) is fixedly embedded in the second mounting groove; The upper hinge (3) has an exposed first rolled portion (33), the lower hinge (4) has an exposed second rolled portion (42), and the two ends of the folding member (5) are respectively hinged to the first rolled portion (33) and the second rolled portion (42) to form the first rotation axis (100) and the second rotation axis (200). The second support member (2) is used for detachable installation in the positioning slot (71) of an external device (7); The outer side wall of the second support member (2) is provided with at least one pair of limiting flanges (43). When the second support member (2) is placed in the positioning groove (71), the limiting flanges (43) cooperate with the inner top wall of the positioning groove (71) to restrict the second support member (2) from disengaging from the positioning groove (71). The bottom of the positioning groove (71) is provided with a ring of teeth (72) corresponding to the inner area of ​​the second support member (2). An elastic locking block (44) is movably disposed inside the second support member (2), and the elastic locking block (44) has an elastic tendency to engage with the locking teeth (72); When the first rotation axis (100) and the first support member (1) are raised, the first rotation axis (100) is offset from the opening edge of the positioning groove (71).

2. The folding phone holder as described in claim 1, characterized in that: Both the first support member (1) and the second support member (2) are annular flat structures.

3. The folding phone holder as described in claim 1, characterized in that: The first support member (1) and the second support member (2) are made of metal material, and the first support member (1) is embedded with a magnet (6) for adsorbing and fixing the second support member (2) when the dual-axis linkage hinge is closed.

4. The folding phone holder as described in claim 1, characterized in that: The second support member (2) has a receiving groove (21) that matches the shape of the first support member (1). When the dual-axis linkage hinge is in the closed state, the first support member (1) is stored in the receiving groove (21).

5. The folding phone holder as described in claim 1, characterized in that: The first support member (1) also integrally extends to form a shielding part (34); When the dual-axis linkage hinge is in the closed state, the blocking part (34) is located above the first rolled circular structure of the upper hinge (3) and forms a visual blockage to it.

6. The folding phone holder as described in claim 1, characterized in that: The protrusion (31) is a fan-shaped block structure.

7. A method for opening and closing a folding mobile phone holder, characterized in that, The method, applied to a folding phone holder as described in any one of claims 1 to 6, comprises the following steps: Unfolding steps: Drive the upper hinge (3) to unfold relative to the lower hinge (4) around the first rotation axis (100); Fulcrum formation step: When the upper hinge (3) is unfolded to a preset angle, the protrusion (31) set on the side wall of the upper hinge (3) contacts the base (41) set on the top wall of the lower hinge (4) and forms a dynamic fulcrum; Linkage lifting step: Continue to drive the upper hinge (3) to unfold around the first rotation axis (100). Through the dynamic fulcrum formed by the protrusion (31) and the base (41), force the stacked riveting (5) to rotate around the second rotation axis (200), thereby driving the first rotation axis (100) and the first support member (1) on it to generate lifting displacement.

8. A method for manufacturing a stacked riveted part, characterized in that, The folding component is applied to a folding mobile phone holder as described in any one of claims 1 to 6, comprising the following steps: Stamping and riveting process: Multiple metal stampings are provided, and the stampings are joined together through a stacking and riveting process to form a stacked and riveted blank; Welding reinforcement step: Welding is performed on the side of the stacked riveted blank to enhance its structural strength; Heat treatment steps: The welded stacked riveted blank is heat treated to improve its overall hardness; Surface finishing steps: Grind the heat-treated stacked riveted blanks to remove burrs and improve surface finish; Surface plating step: Chemical nickel plating is performed on the surface of the ground and riveted blank to form a metal protective layer.

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