A gear rack linkage clamping mechanism and mobile phone holder

Abstract

The present invention discloses a gear rack linkage clamping mechanism, which includes a support frame, two transverse clamping jaws, a longitudinal clamping jaw, a central gear and a driving motor, wherein the transverse clamping jaw includes a transverse spur rack, the longitudinal clamping jaw includes a longitudinal spur rack, the central gear is embedded in the support frame, the two transverse spur racks are symmetrically arranged on both sides of the central gear, the longitudinal spur rack is arranged on the side of the central gear, and the longitudinal spur rack and the two transverse spur racks are meshed with the central gear, a transmission spur rack is formed on the longitudinal spur rack, a driving gear is fixed on the output shaft of the driving motor, the driving gear and the transmission spur rack are meshed with each other, and when the driving motor is running, the driving gear drives the transmission spur rack to move, and at the same time drives the longitudinal clamping jaw and the two transverse clamping jaws to open or close at the same time. The present invention can make the two transverse clamping jaws and the longitudinal clamping jaw perform the opening or closing action at the same time, and saves space, is easy to drive, and is stable and reliable.

Description

Technical Field

[0001] The invention relates to a mobile phone holder, and in particular to a gear-rack linkage type clamping mechanism and a mobile phone holder. Background Art

[0002] A mobile phone holder is a device used to clamp a mobile phone and support it on a desktop, a car center console, etc. The mobile phone holder in the prior art usually has two clamping claws and a supporting claw. The supporting claws are generally fixed in position. The two clamping claws are pulled by a spring. With the help of the tension of the spring, the two clamping claws clamp the mobile phone. When the spring fails, the mobile phone holder will be unusable, thereby reducing the service life of the mobile phone holder. In addition, in the existing mobile phone holder, there is a lack of linkage function between the two clamping claws and the supporting claw, resulting in a poor user experience and difficulty in meeting user and market needs. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a rack and pinion linkage clamping mechanism and a mobile phone holder that can enable two horizontal clamping jaws and one longitudinal clamping jaw to simultaneously perform opening or closing actions, while saving space, having a simple structure, and being stable and reliable, in view of the shortcomings of the existing technology.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions.

[0005] A gear-rack linkage clamping mechanism comprises a supporting frame, two transverse clamping jaws, a longitudinal clamping jaw, a central gear and a driving motor, the transverse clamping jaw comprises a transverse spur rack, the longitudinal clamping jaw comprises a longitudinal spur rack, the central gear is embedded in the supporting frame and the two are rotatably connected, the two transverse spur racks are symmetrically arranged on both sides of the central gear, the longitudinal spur rack is arranged on the side of the central gear, and the longitudinal spur rack and the two transverse spur racks are all meshed with the central gear, a transmission spur rack is formed on the longitudinal spur rack, the driving motor is fixed on the supporting frame, a driving gear is fixed on the output shaft of the driving motor, the driving gear and the transmission spur rack are meshed with each other, when the driving motor is running, the transmission spur rack is driven to move by the driving gear, and the longitudinal clamping jaw and the two transverse clamping jaws are driven to open or close at the same time by the cooperation of the longitudinal spur rack, the two transverse spur racks and the central gear.

[0006] Preferably, the transmission spur rack is located at the end of the longitudinal spur rack, and the transmission spur rack and the longitudinal spur rack have the same extension direction.

[0007] Preferably, the tooth opening direction of the longitudinal spur rack and the tooth opening direction of the transmission spur rack are perpendicular to each other.

[0008] Preferably, the transverse clamp comprises a transverse support arm, and the transverse spur rack is located at the end of the transverse support arm.

[0009] Preferably, the longitudinal clamping jaw comprises a longitudinal support arm, and the longitudinal spur rack is located at the end of the longitudinal support arm.

[0010] Preferably, a transverse slide and a longitudinal slide are provided on the support frame, two transverse support arms are respectively inserted into the transverse slide from both sides, and the transverse support arms are slidably connected to the transverse slide, and the longitudinal support arms are inserted into the longitudinal slide and the two are slidably connected.

[0011] Preferably, a receiving groove is provided on the support frame, and the central gear is arranged in the receiving groove.

[0012] A mobile phone holder, comprising a shell, a circuit board is arranged in the shell, a supporting mechanism is arranged at the bottom of the shell, a clamping mechanism is arranged in the shell, the clamping mechanism comprises a supporting frame, two horizontal clamping jaws, a longitudinal clamping jaw, a central gear and a driving motor, the horizontal clamping jaw and the longitudinal clamping jaw respectively pass through the shell and extend outward, the horizontal clamping jaw comprises a horizontal spur rack, the longitudinal clamping jaw comprises a longitudinal spur rack, the central gear is embedded in the supporting frame and the two are rotatably connected, the two horizontal spur racks are symmetrically arranged on both sides of the central gear, the longitudinal spur rack is arranged on the side of the central gear, and the longitudinal The spur rack and the two transverse spur racks are all meshed with the central gear, a transmission spur rack is formed on the longitudinal spur rack, the drive motor is electrically connected to the circuit board, and the power-on operation of the drive motor is controlled by the circuit board. The drive motor is fixed on the support frame, and a drive gear is fixed on the output shaft of the drive motor. The drive gear and the transmission spur rack are meshed with each other. When the drive motor is running, the transmission spur rack is driven to move by the drive gear, and the longitudinal clamping jaw and the two transverse clamping jaws are driven to open or close at the same time by the cooperation of the longitudinal spur rack, the two transverse spur racks and the central gear.

[0013] Preferably, a top shell is fixed on the top of the shell, a wireless charging module is embedded in the top shell, and the wireless charging module is electrically connected to the circuit board, and the wireless charging module is controlled by the circuit board to radiate wireless electromagnetic energy outward.

[0014] Preferably, a surface cover is fixed on the top shell, and the surface cover covers the wireless charging module.

[0015] In the gear rack linkage clamping mechanism disclosed in the present invention, the longitudinal spur rack and the two transverse spur racks are both meshed with the central gear, so only a push-pull force needs to be applied to any one of the longitudinal spur rack and the two transverse spur racks to achieve an opening or closing action under the cooperation of the longitudinal spur rack, the two transverse spur racks and the central gear. On this basis, the present invention arranges a transmission spur rack on the longitudinal spur rack, and arranges the driving motor on the supporting frame. When the driving motor is running, the transmission spur rack is driven to translate back and forth through the driving gear, thereby driving the longitudinal clamping claw to move, so that the longitudinal spur rack and the two transverse spur racks can better perform the action of clamping or releasing the mobile phone. Compared with the prior art, the present invention realizes the three-axis linkage function of the longitudinal spur rack and the two transverse spur racks, which helps to improve the automation performance of the mobile phone holder and improve the user experience. In addition, the present invention adopts the method of applying push-pull force to the longitudinal clamping jaws to realize linkage control. Compared with the method of applying power to the center gear, there is no need to design the center gear as a multi-layer gear, which helps to save the internal space of the mobile phone holder. At the same time, it is easy to drive the longitudinal clamping jaws to move back and forth. On this basis, the present invention has a simple structure, is easy to implement, and has a stable and reliable structure. Therefore, it is suitable for application in mobile phone holder products. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Three-dimensional mobile phone bracket Figure 1 ;

[0017] Figure 2 Three-dimensional mobile phone bracket Figure 2 ;

[0018] Figure 3 The internal structure of the mobile phone holder Figure 1 ;

[0019] Figure 4 The internal structure of the mobile phone holder Figure 2 ;

[0020] Figure 5 It is a three-dimensional gear rack linkage clamping mechanism. Figure 1 ;

[0021] Figure 6 Decomposition of the rack and pinion linkage clamping mechanism Figure 1 ;

[0022] Figure 7 It is a three-dimensional gear rack linkage clamping mechanism. Figure 2 ;

[0023] Figure 8 Decomposition of the rack and pinion linkage clamping mechanism Figure 2 ;

[0024] Fig. 9 is a three-dimensional diagram of the central gear;

[0025] Fig.10 To support the three-dimensional structure Figure 1 ;

[0026] Fig.11 To support the three-dimensional structure Figure 2 ;

[0027] Fig.12 Decomposition of supporting structures Figure 1 ;

[0028] Fig.13 Decomposition of supporting structures Figure 2 ;

[0029] Fig.14 This is a structural diagram of the vertical rod and the slider. DETAILED DESCRIPTION

[0030] The present invention will be described in more detail below with reference to the accompanying drawings and embodiments.

[0031] Embodiment 1

[0032] This embodiment proposes a gear rack linkage clamping mechanism, combined with Figures 1 to 9 As shown, it includes a support frame 1, two transverse clamping jaws 2, a longitudinal clamping jaw 3, a central gear 4 and a driving motor 5, the transverse clamping jaw 2 includes a transverse spur rack 20, the longitudinal clamping jaw 3 includes a longitudinal spur rack 30, the central gear 4 is embedded in the support frame 1 and the two are rotatably connected, the two transverse spur racks 20 are symmetrically arranged on both sides of the central gear 4, the longitudinal spur rack 30 is arranged on the side of the central gear 4, and the longitudinal spur rack 30 and the two transverse spur racks 20 are meshed with the central gear 4 A transmission spur rack 31 is formed on the longitudinal spur rack 30, the driving motor 5 is fixed on the supporting frame 1, and a driving gear 50 is fixed on the output shaft of the driving motor 5. The driving gear 50 and the transmission spur rack 31 are meshed with each other. When the driving motor 5 is running, the driving gear 50 drives the transmission spur rack 31 to move, and the longitudinal spur rack 30, the two transverse spur racks 20 and the central gear 4 cooperate to drive the longitudinal clamping jaws 3 and the two transverse clamping jaws 2 to open or close at the same time.

[0033] In the above structure, the longitudinal spur rack 30 and the two transverse spur racks 20 are both meshed with the central gear 4, so only a push-pull force needs to be applied to any one of the longitudinal spur rack 30 and the two transverse spur racks 20, so that the opening or closing action can be achieved under the cooperation of the longitudinal spur rack 30, the two transverse spur racks 20 and the central gear 4. On this basis, the present invention provides a transmission spur rack 31 on the longitudinal spur rack 30, and provides the driving motor 5 on the support frame 1. When the driving motor 5 is running, the transmission spur rack 31 is driven to translate back and forth through the driving gear 50, thereby driving the longitudinal clamping jaw 3 to move, so that the longitudinal spur rack 30 and the two transverse spur racks 20 can better perform the action of clamping or releasing the mobile phone. Compared with the prior art, the present invention realizes the three-axis linkage function of the longitudinal spur rack 30 and the two transverse spur racks 20, which helps to improve the automation performance of the mobile phone holder and improve the user experience. In addition, the present invention adopts the method of applying push-pull force to the longitudinal clamping jaw 3 to achieve linkage control. Compared with the method of applying power to the center gear 4, there is no need to design the center gear 4 as a multi-layer gear, which helps to save the internal space of the mobile phone holder. At the same time, it is easy to drive the longitudinal clamping jaw 3 to move forward and backward. On this basis, the present invention has a simple structure, is easy to implement, and has a stable and reliable structure. Therefore, it is suitable for application in mobile phone holder products.

[0034] As a preferred embodiment, the transmission spur rack 31 is located at the end of the longitudinal spur rack 30, and the transmission spur rack 31 extends in the same direction as the longitudinal spur rack 30. The transmission spur rack 31 in this embodiment extends outward from the longitudinal spur rack 30, so as to better match the drive motor 5.

[0035] On this basis, the tooth opening direction of the longitudinal spur rack 30 is perpendicular to the tooth opening direction of the transmission spur rack 31. This structure allows the drive motor 5 to be arranged horizontally without occupying the vertical space of the mobile phone holder, which helps the mobile phone holder to develop in the direction of being light and thin.

[0036] Furthermore, the transverse clamping jaw 2 includes a transverse support arm 21 , and the transverse spur rack 20 is located at the end of the transverse support arm 21 .

[0037] In this embodiment, the longitudinal clamping jaw 3 includes a longitudinal support arm 32 , and the longitudinal spur rack 30 is located at the end of the longitudinal support arm 32 .

[0038] In order to better cooperate with the two transverse clamps 2 and the longitudinal clamps 3 and ensure reliable sliding, in this embodiment, a transverse slide 10 and a longitudinal slide 11 are provided on the support frame 1, and two transverse support arms 21 are respectively inserted into the transverse slide 10 from both sides, and the transverse support arms 21 are slidably connected to the transverse slide 10, and the longitudinal support arms 32 are inserted into the longitudinal slide 11 and the two are slidably connected.

[0039] In order to accommodate and restrict the central gear 4 , in this embodiment, a receiving groove 12 is provided on the support frame 1 , and the central gear 4 is disposed in the receiving groove 12 .

[0040] The present embodiment can be applied to a mobile phone holder, which includes a shell 7, a circuit board 14 is arranged in the shell 7, a support mechanism 8 is arranged at the bottom of the shell 7, a clamping mechanism is arranged in the shell 7, and the clamping mechanism includes a support frame 1, two transverse clamping jaws 2, a longitudinal clamping jaw 3, a central gear 4 and a driving motor 5. The transverse clamping jaw 2 and the longitudinal clamping jaw 3 respectively pass through the shell 7 and extend outward, the transverse clamping jaw 2 includes a transverse spur rack 20, the longitudinal clamping jaw 3 includes a longitudinal spur rack 30, the central gear 4 is embedded in the support frame 1 and the two are rotatably connected, the two transverse spur racks 20 are symmetrically arranged on both sides of the central gear 4, the longitudinal spur rack 30 is arranged on the side of the central gear 4, and The longitudinal spur rack 30 and the two transverse spur racks 20 are both meshed with the central gear 4. A transmission spur rack 31 is formed on the longitudinal spur rack 30. The drive motor 5 is electrically connected to the circuit board 14, and the power-on operation of the drive motor 5 is controlled by the circuit board 14. The drive motor 5 is fixed on the support frame 1, and a drive gear 50 is fixed on the output shaft of the drive motor 5. The drive gear 50 and the transmission spur rack 31 are meshed with each other. When the drive motor 5 is running, the transmission spur rack 31 is driven to move by the drive gear 50, and the longitudinal clamp 3 and the two transverse clamps 2 are driven to open or close at the same time by the cooperation of the longitudinal spur rack 30, the two transverse spur racks 20 and the central gear 4.

[0041] In order to realize the wireless charging function, in this embodiment, a top shell 9 is fixed on the top of the shell 7, and a wireless charging module 13 is embedded in the top shell 9. The wireless charging module 13 is electrically connected to the circuit board 14, and the wireless charging module 13 is controlled by the circuit board 14 to radiate wireless electromagnetic energy outward.

[0042] Furthermore, a cover 15 is fixed on the top shell 9 , and the cover 15 covers the wireless charging module 13 .

[0043] In practical applications, if the central gear 4 is used to cooperate with the central gear 4, the central gear 4 needs to be designed as a structure of at least three gears. This structure will occupy the internal space of the mobile phone holder, making it difficult for the mobile phone holder to achieve a thin and light structure. In contrast, the present invention realizes the linkage function by applying power to the longitudinal clamping jaws 3. This driving method allows the central gear 4 to be designed as a double-layer gear, specifically:

[0044] The center gear 4 includes a first gear portion 40 and a second gear portion 41, the first gear portion 40 and the second gear portion 41 are stacked up and down, the diameter of the first gear portion 40 is larger than the diameter of the second gear portion 41, the first gear portion 40 is meshed with the longitudinal spur rack 30, and the second gear portion 41 is meshed with the transverse spur rack 20.

[0045] To facilitate user operation, in this embodiment, touch buttons 16 are embedded on both sides of the shell 7, and the touch buttons 16 are electrically connected to the circuit board 14. The circuit board 14 controls the drive motor 5 to run forward or reverse according to the control instructions entered by the touch buttons 16.

[0046] Embodiment 2

[0047] In actual applications, when the mobile phone holder is used in a car environment, it is sometimes necessary to fix the mobile phone holder on the car center console or the air outlet grille of the air conditioner. For the structure matching the air outlet grille, a vertical rod with a hook is usually set at the bottom of the mobile phone holder, and the air outlet grille is hooked by the hook, and the support seat on the vertical rod is fixed to the outside of the air outlet grille. Although this matching method can play a supporting and fixing role, the relative angular position between the support seat and the vertical rod cannot be adjusted. For the narrow and special structure of the outer side of the air outlet grille, the mobile phone holder may not be matched with the car air outlet grille. It can be seen that the support mechanism of the existing mobile phone holder lacks the orientation adjustment function and cannot meet the application requirements of multiple scenarios.

[0048] In this regard, this embodiment proposes a rotating support mechanism for a mobile phone holder, which helps to adjust the relative angular position between the support ring and the vertical rod, thereby matching a variety of application scenarios. Figure 1 , Figure 2 , Figure 4 , Figures 10 to 14As shown, the support mechanism 8 includes a support ring 80, a chassis 81, a cover body 82, a vertical rod 83 and a slider 84, the slider 84 is located in the cover body 82, a spring 85 is sandwiched between one end of the slider 84 and the inner wall of the cover body 82, the other end of the slider 84 passes through the side wall of the cover body 82 and extends outward, the slider 84 is provided with a gap-avoiding opening 840, the cover body 82 is provided with an upper plug hole 820, the chassis 81 is provided with a lower plug hole 810, the vertical rod 83 passes through the upper plug hole 820, the gap-avoiding opening 840 and the lower plug hole 810 from top to bottom in sequence, the opening length of the gap-avoiding opening 840 is greater than the thickness of the vertical rod 83, so that the slider 84 can be relatively As the vertical rod 83 slides back and forth, a locking tongue 841 is formed on the inner wall of the air-avoiding opening 840 close to the spring 85, and a vertical tooth portion 830 is formed on the side of the vertical rod 83. The vertical tooth portion 830 extends along the length direction of the vertical rod 83, and the vertical tooth portion 830 is arranged opposite to the locking tongue 841. The locking tongue 841 and the vertical tooth portion 830 are engaged with each other by the elastic force applied by the spring 85. A hook 831 is formed at the lower end of the vertical rod 83, and the cover body 82 and the chassis 81 are respectively arranged on the upper and lower sides of the support ring 80, and the cover body 82 is fixedly connected to the chassis 81, and the cover body 82 and the chassis 81 are both rotatably matched with the support ring 80.

[0049] In the above structure, the hook 831 at the lower end of the vertical rod 83 can be hooked on the inner side of the automobile air outlet grille, and at the same time, the support ring 80 is fastened to the outer side of the automobile air outlet grille, thereby fixing the support mechanism to the automobile air outlet grille, and then the insertion depth of the vertical rod 83 can be adjusted through the cooperation of the vertical tooth portion 830 and the locking tongue 841, and the insertion position of the vertical rod 83 is limited and fixed, so that the support mechanism is easy to install and disassemble. On this basis, in this embodiment, the support ring 80 is clamped between the cover body 82 and the chassis 81, and at the same time, the support ring 80 can be rotated relative to the cover body 82 and the chassis 81. When the orientation of the support ring 80 needs to be adjusted, the support ring 80 can be directly screwed, thereby meeting the application requirements of multiple scenarios, which not only helps to improve the overall performance of the mobile phone holder, but also can further improve the user experience.

[0050] As a preferred embodiment, the upper end surface of the support ring 80 is formed with a plurality of lower protrusions 800, and the lower protrusions 800 abut against the lower end surface of the cover body 82. The lower end surface of the cover body 82 is formed with a plurality of upper protrusions 821, and the upper protrusions 821 abut against the upper end surface of the support ring 80. When the support ring 80 is rotated by a preset angle, the lower protrusions 800 and the upper protrusions 821 abut against each other. When the support ring 80 is further screwed, the clamping force between the lower protrusions 800 and the upper protrusions 821 needs to be overcome. By setting a reasonable number of lower protrusions 800 and an appropriate position in this embodiment, the upper protrusions 821 can also play a travel limiting role. For example, the upper protrusion 821 can be clamped between two adjacent lower protrusions 800 to achieve a limit function.

[0051] In order to facilitate the passage of the slider 84 , in this embodiment, a slider hole 822 is opened on the side wall of the cover body 82 , and the slider 84 passes through the slider hole 822 and the two are slidably matched.

[0052] In order to limit the slider 84, in this embodiment, two vertical slider limit plates 811 are formed on the chassis 81. The two slider limit plates 811 are parallel to each other, and the slider 84 is located between the two slider limit plates 811. The two slider limit plates 811 help the slider 84 to slide smoothly along a preset track and prevent the slider 84 from deflecting.

[0053] In order to better support the outside of the air outlet grille of the automobile, in this embodiment, support legs 801 are respectively formed on both sides of the support ring 80.

[0054] Furthermore, the support leg 801 extends obliquely downward.

[0055] In this embodiment, the chassis 81 and the cover 82 are preferably assembled by plugging and fixing, specifically, a plurality of plug posts 812 are formed on the chassis 81, a plurality of plug holes 823 are formed on the inner side of the cover 82, the plug posts 812 are aligned with the plug holes 823 one by one, the plug posts 812 are inserted into the plug holes 823, and the two are tightly matched. The above assembly method is not only structurally reliable, but also does not require screws, and the assembly process is simple and convenient.

[0056] In order to ensure that the support ring 80 rotates stably and reliably, in this embodiment, an inner step opening 802 is formed at the bottom opening of the support ring 80, and the chassis 81 is embedded in the inner step opening 802 and the two are rotatably matched.

[0057] The present embodiment can be applied to a mobile phone holder, which includes a shell 7, a supporting mechanism is provided at the bottom of the shell 7, and the supporting mechanism 8 includes a supporting ring 80, a chassis 81, a cover body 82, a vertical rod 83 and a slider 84, wherein the slider 84 is located in the cover body 82, a spring 85 is sandwiched between one end of the slider 84 and the inner wall of the cover body 82, and the other end of the slider 84 passes through the side wall of the cover body 82 and extends outward, an air avoidance opening 840 is provided on the slider 84, an upper plug hole 820 is provided on the cover body 82, and a lower plug hole 810 is provided on the chassis 81, and the upper end of the vertical rod 83 is connected to the shell 7, and the vertical rod 83 passes through the upper plug hole 820, the air avoidance opening 840 and the lower plug hole 810 from top to bottom in sequence, and the air avoidance opening 84 0 is greater than the thickness of the vertical rod 83, so that the slider 84 can slide back and forth relative to the vertical rod 83, and a locking tongue 841 is formed on the inner wall of the air-avoiding opening 840 close to the spring 85, and a vertical tooth portion 830 is formed on the side of the vertical rod 83, and the vertical tooth portion 830 extends along the length direction of the vertical rod 83, and the vertical tooth portion 830 is arranged opposite to the locking tongue 841, and the locking tongue 841 and the vertical tooth portion 830 are engaged with each other by the elastic force applied by the spring 85, and a hook 831 is formed at the lower end of the vertical rod 83, and the cover body 82 and the chassis 81 are respectively arranged on the upper and lower sides of the support ring 80, and the cover body 82 is fixedly connected to the chassis 81, and the cover body 82 and the chassis 81 are both rotatably matched with the support ring 80.

[0058] Furthermore, a universal shaft seat 70 is fixed to the bottom of the shell 7, and a locking nut 72 is sleeved on the outer side of the universal shaft seat 70 and the two are screwed together and fixed, and a universal ball 832 is formed at the upper end of the vertical rod 83, and the universal ball 832 is clamped in the universal shaft seat 70.

[0059] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions or improvements made within the technical scope of the present invention should be included in the scope of protection of the present invention.

Claims

1. A mobile phone holder, characterized in that: The invention comprises a shell, a circuit board is arranged in the shell, a supporting mechanism is arranged at the bottom of the shell, a clamping mechanism is arranged in the shell, the clamping mechanism comprises a supporting frame, two transverse clamping jaws, a longitudinal clamping jaw, a central gear and a driving motor, the transverse clamping jaw and the longitudinal clamping jaw respectively pass through the shell and extend outward, the transverse clamping jaw comprises a transverse spur rack, the longitudinal clamping jaw comprises a longitudinal spur rack, the central gear is embedded in the supporting frame and the two are rotatably connected, the two transverse spur racks are symmetrically arranged on both sides of the central gear, the longitudinal spur rack is arranged on the side of the central gear, and the longitudinal spur rack and The two transverse spur racks are both meshed with the central gear, a transmission spur rack is formed on the longitudinal spur rack, the drive motor is electrically connected to the circuit board, and the circuit board is used to control the power-on operation of the drive motor, the drive motor is fixed on the support frame, a drive gear is fixed on the output shaft of the drive motor, the drive gear and the transmission spur rack are meshed with each other, when the drive motor is running, the drive gear drives the transmission spur rack to move, and the longitudinal clamping jaw and the two transverse clamping jaws are driven to open or close at the same time by the cooperation of the longitudinal spur rack, the two transverse spur racks and the central gear; The transmission spur rack is located at the end of the longitudinal spur rack, and the transmission spur rack and the longitudinal spur rack extend in the same direction; The tooth opening direction of the longitudinal spur rack is perpendicular to the tooth opening direction of the transmission spur rack; The transverse clamp includes a transverse support arm, and the transverse spur rack is located at the end of the transverse support arm; The longitudinal clamping jaw comprises a longitudinal support arm, and the longitudinal spur rack is located at the end of the longitudinal support arm; The support frame is provided with a transverse slide and a longitudinal slide, two transverse support arms are respectively inserted into the transverse slide from both sides, and the transverse support arms are slidably connected to the transverse slide, and the longitudinal support arms are inserted into the longitudinal slide and the two are slidably connected; The support frame is provided with a receiving groove, and the central gear is arranged in the receiving groove; The supporting mechanism comprises a supporting ring, a chassis, a cover body, a vertical rod and a slider, the slider is located in the cover body, a spring is sandwiched between one end of the slider and the inner wall of the cover body, the other end of the slider passes through the side wall of the cover body and extends outward, the slider is provided with a space-avoiding opening, the cover body is provided with an upper plug hole, the chassis is provided with a lower plug hole, the vertical rod passes through the upper plug hole, the space-avoiding opening and the lower plug hole from top to bottom in sequence, the opening length of the space-avoiding opening is greater than the thickness of the vertical rod, so that the slider can reciprocate relative to the vertical rod, and a locking tongue is formed on the inner wall of the space-avoiding opening close to the spring side, and a vertical tooth portion is formed on the side of the vertical rod, the vertical tooth portion extends along the length direction of the vertical rod, and the vertical tooth portion is aligned with the lock The tongues are arranged opposite to each other, and the locking tongue and the vertical tooth portion are driven to engage with each other by the elastic force applied by the spring, and a hook is formed at the lower end of the vertical rod, and the cover body and the chassis are respectively arranged on the upper and lower sides of the support ring, the cover body and the chassis are fixedly connected, and the cover body and the chassis are rotatably matched with the support ring; the upper end surface of the support ring is formed with a plurality of lower protrusions, and the lower protrusions are abutted against the lower end surface of the cover body, and the lower end surface of the cover body is formed with a plurality of upper protrusions, and the upper protrusions are abutted against the upper end surface of the support ring; a slider hole is provided on the side wall of the cover body, and the slider passes through the slider hole and the two are slidably matched; two vertically arranged slider limit plates are formed on the chassis, the two slider limit plates are parallel to each other, and the slider is located between the two slider limit plates.

2. The mobile phone holder according to claim 1, characterized in that: A top shell is fixed on the top of the shell, a wireless charging module is embedded in the top shell, and the wireless charging module is electrically connected to the circuit board. The wireless charging module is controlled by the circuit board to radiate wireless electromagnetic energy outward.

3. The mobile phone holder according to claim 2, characterized in that: A surface cover is fixed on the top shell, and the surface cover covers the wireless charging module.

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