Mobile device stand

Abstract

The present invention discloses a mobile device bracket, comprising a shell, a clamping arm and a lower supporting arm movably connected relative to the shell, a linkage mechanism and a reset mechanism, wherein the linkage mechanism comprises a gear rotatably mounted on the shell, the lower supporting arm is transmission-connected to the clamping arm through the gear, the reset mechanism comprises a reset button and a guide portion slidably connecting the reset button and the gear, when the lower supporting arm is acted upon by the gravity of an object placed thereon and moves in a direction away from the shell, the gear is driven to rotate in a first direction, and the gear drives the clamping arms to move towards each other to a clamping state of the clamped object; when the reset button is pressed, the reset button drives the gear to rotate in a second direction through the guide portion, and the gear drives the clamping arms to move in opposite directions and switch to an unlocking state for loosening the object, and the lower supporting arm moves in a direction close to the shell and returns to an initial position; even if vibration or bump occurs during use by the user, the mobile device on the mobile device bracket will not fall off from the bracket.

Description

Technical Field

[0001] The present invention relates to the technical field of brackets, and in particular to a bracket for a mobile device. Background Art

[0002] As living standards improve, people use mobile devices in more and more occasions. Holding mobile devices often causes inconvenience, so many brackets have appeared on the market. Among them, car brackets have received extensive attention in the bracket field. However, the known car brackets usually have weak clamping force. When encountering vibrations and bumps, the clamped mobile devices will loosen, making the user experience very poor during use. Summary of the invention

[0003] The invention provides a mobile device bracket which has more stable clamping and can prevent loosening due to vibration.

[0004] The present invention provides a mobile equipment bracket, comprising a shell, a clamping arm and a lower support arm movably connected relative to the shell, a linkage mechanism and a reset mechanism, the linkage mechanism comprising a gear rotatably mounted on the shell, the lower support arm is transmission-connected to the clamping arm through the gear, the reset mechanism comprises a reset button, and a guide portion slidably connecting the reset button and the gear, when the lower support arm is acted upon by the gravity of an object placed thereon and moves in a direction away from the shell, the gear is driven to rotate in a first direction, and the gear drives the clamping arms to move toward each other to a clamping state of clamping the object; the reset button is pressed, and the reset button drives the gear to rotate in a second direction opposite to the first direction through the guide portion, and the gear drives the clamping arm to move inversely and switch to an unlocking state for loosening the object, and the lower support arm moves in a direction close to the shell and returns to its initial position.

[0005] In one embodiment, the linkage mechanism also includes a locking portion, both ends of which are respectively connected to the gear and the housing, and the locking portion follows the rotation of the gear and deflects relative to the center of the gear. In the clamping state, the locking portion deflects and is located on one side of the center of the gear, providing a pulling force to the gear that tends to rotate in the first direction, thereby keeping the clamping arm clamped.

[0006] In one embodiment, the locking portion includes an elastic member, one end of the elastic member connected to the shell is a fixed end, and one end connected to the gear is a free end, and the free ends follow the gear to rotate in the first direction or in the second direction and are respectively located on opposite sides of the center of the gear.

[0007] In one embodiment, a groove is provided on the lower support arm at a position corresponding to the fixed end, and the fixed end is connected to the shell after passing through the groove. The groove is open on the side facing the gear. During the rotation of the gear, the free end rotates with the fixed end as the center, and the fixed end moves in the groove along the width direction of the opening. The width of the opening corresponds to the angle formed by the rotation of the elastic member.

[0008] In one embodiment, the linkage mechanism also includes a pushing part, both ends of which are respectively connected to the clamping arm and the shell, and when the gear rotates in the first direction, one end of the pushing part follows the movement of the clamping arm to form a restoring force, and when the gear rotates in the second direction, the restoring force pushes the clamping arm to move in the opposite direction and switch to an unlocked state to loosen the object.

[0009] In one embodiment, a guide structure is further provided between the gear and the lower support arm, and the guide structure includes a guide column and a guide groove, and the extension direction of the guide groove forms an angle with the movement direction of the lower support arm. The guide column is inserted into the guide groove, and when the lower support arm moves in a direction away from the shell, the guide column moves in the guide groove to drive the gear to rotate.

[0010] In one embodiment, the linkage mechanism also includes a rotating wheel, and the clamping arm includes a first clamping arm and a second clamping arm, the first clamping arm and the second clamping arm are located on opposite sides of the rotating wheel, and the first clamping arm and the second clamping arm are respectively provided with latching teeth engaged with the rotating wheel, and the first clamping arm is also provided with latching teeth engaged with the gear on the side away from the rotating wheel.

[0011] In one embodiment, the rotating wheel includes a disc portion close to the rear side wall of the shell and a boss extending from the center of the disc portion to the front side wall of the shell, and the outer periphery of the boss is provided with latching teeth respectively engaging with the first clamping arm and the second clamping arm.

[0012] In one embodiment, the guide portion includes a linkage groove provided on the reset button and a linkage column provided on the gear, the linkage column is inserted in the linkage groove, and the extension direction of the linkage groove is inclined relative to the movement direction of the lower support arm. When the reset button is pressed, the reset button telescopes and drives the linkage column to move along the linkage groove, thereby driving the gear to move in the second direction.

[0013] In one embodiment, the housing comprises a front housing and a rear housing that are detachably connected;

[0014] The side of the front shell facing the clamped object is provided with an anti-slip portion; and / or the side of the rear shell away from the clamped object is provided with a connecting portion.

[0015] In summary, an embodiment of the present invention discloses a mobile device bracket, comprising a shell, a clamping arm and a lower supporting arm movably connected relative to the shell, a linkage mechanism and a reset mechanism, wherein the linkage mechanism comprises a gear rotatably mounted on the shell, the lower supporting arm is transmission-connected to the clamping arm through the gear, the reset mechanism comprises a reset button, and a guide portion slidably connecting the reset button and the gear, when the lower supporting arm is acted upon by the gravity of an object placed thereon and moves in a direction away from the shell, the gear is driven to rotate in a first direction, and the gear drives the clamping arms to move toward each other to a clamping state of clamping the object; when the reset button is pressed, the reset button is driven by the guide portion. The gear is driven to rotate in a second direction, and the gear drives the clamping arm to move in the opposite direction and switch to an unlocked state for loosening the object. The lower support arm moves in a direction close to the shell and returns to its initial position. Through the arrangement of the linkage mechanism and the reset mechanism, when the clamped object is placed on the lower support arm, the clamping arm is maintained in a state of clamping the object through the object's own gravity and the transmission connection between the linkage mechanism and the clamping arm. When unlocking, it is necessary to press the reset button to drive the gear to rotate in the opposite direction through the guide part to switch to the unlocked state for loosening the object. Therefore, the problem of the mobile device bracket being easily loosened due to vibration, bumps, etc. can be avoided. It is especially suitable for vehicle-mounted use, which enhances the user experience during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional schematic diagram of a mobile device bracket in one embodiment of the present invention.

[0017] Figure 2 for Figure 1 Exploded view of the mobile device holder.

[0018] Figure 3 for Figure 1 Another exploded view of the mobile device holder.

[0019] Figure 4 for Figure 1 Schematic diagram of the structure of the mobile device support in the extended state.

[0020] Figure 5 for Figure 1 A three-dimensional schematic diagram of a mobile device holder in a clamped state.

[0021] Figure 6 for Figure 5 Schematic diagram of the structure of the mobile equipment bracket in the clamped state. DETAILED DESCRIPTION

[0022] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0023] Before describing the embodiments in detail, it should be understood that the present invention is not limited to the detailed structure or component arrangement described below or in the accompanying drawings in this application. The present invention may be an embodiment implemented in other ways. Moreover, it should be understood that the words and terms used herein are only used for descriptive purposes and should not be interpreted restrictively. The words "including", "comprising", "having" and the like used herein are meant to include the items listed thereafter, their equivalents and other additional items. In particular, when describing "a certain element", the present invention does not limit the number of the element to one, but may also include multiple elements.

[0024] See also Figures 1 to 3 An embodiment of the present invention provides a mobile device bracket, including a shell 20, a clamping arm and a lower support arm 10 movably connected relative to the shell 20, a linkage mechanism and a reset mechanism, the linkage mechanism including a gear 50 rotatably mounted on the shell 20, the lower support arm 10 is transmission-connected to the clamping arm through the gear 50, the reset mechanism includes a reset button 30, and a guide portion slidably connecting the reset button 30 and the gear 50, when the lower support arm 10 is affected by the gravity of an object placed thereon and moves in a direction away from the shell 20, the gear 50 is driven to rotate in a first direction, and the gear 50 drives the clamping arms to move toward each other until they are in a clamping state of the clamped object. Taking the clamped object as a mobile device as an example, during use, the user can place the mobile device on the lower support arm of the mobile device holder and between the clamping arms to achieve the effect of automatic clamping. The clamping arm is kept in a state of clamping the mobile device by the gravity of the mobile device itself and the transmission connection between the linkage mechanism and the clamping arm, which is convenient for the user to use; press the reset button 30, the reset button 30 drives the gear 30 to rotate in a second direction opposite to the first direction through the guide part, the gear 30 drives the clamping arm to move in the opposite direction and switch to the unlocking state to loosen the object, and the lower support arm 10 moves in the direction close to the shell 20 and returns to the initial position. Still taking the clamped object as a mobile device as an example, when the user wants to take out the mobile device, he only needs to press the reset button 30, the guide part drives the gear 30 to rotate in the opposite direction, the lower support arm 10 moves in the direction close to the shell 10, and the clamping arm will open at the same time, the clamping arm will loosen the mobile device, and the user can directly take out the mobile device.

[0025] Please refer to Figures 4 to 6Furthermore, the linkage mechanism also includes a locking portion, both ends of which are respectively connected to the gear 50 and the housing 20. The locking portion rotates with the gear 50 and deflects relative to the center of the gear 50. In the clamping state, the locking portion deflects and is located on one side of the center of the gear 50, providing a pulling force to the gear 50 that tends to rotate in the first direction, thereby keeping the clamping arm clamped. After the user places the mobile device on the lower support arm of the mobile device holder and locates it between the clamping arms, the weight of the mobile device itself drives the lower support arm 10 to move downward, and the lower support arm 10 drives the gear 50 to rotate. When the end of the locking portion connected to the gear 50 rotates in the first direction with the gear 50 and is located on the center side of the gear 50, the locking portion will provide a pulling force to the gear 50 to continue rotating in the first direction until the clamping arms are tightly clamped on the opposite sides of the mobile device. At this time, the pulling force formed by the locking portion will make the gear 50 have a tendency to continue rotating in the first direction. The user does not need to adjust it by hand. The clamping arm will automatically remain clamped under the drive of the gear 50, so that the mobile device will not loosen from the mobile device holder even when encountering bumps or vibrations.

[0026] Further, the locking portion includes an elastic member 40, one end of the elastic member 40 connected to the housing 20 is a fixed end, and one end connected to the gear is a free end, and the free ends follow the gear 50 to rotate in the first direction or the second direction and are respectively located on opposite sides of the center of the gear 50. In this embodiment, taking the fixed end as point A, the free end as point B, and the center of the gear 50 as point C as an example, when the gear 50 rotates clockwise to the right around point C, the free end of the elastic member 40 also rotates clockwise to the right around the fixed end, as shown in FIG. Figure 6 As shown in FIG. 1 , when the mobile device bracket is in the clamped state, point B is located on the right side of point C, and line AB is located on the right side of point C. The tension of the elastic member 40 causes the gear 50 to continue to rotate clockwise to the right; conversely, when the gear 50 rotates counterclockwise to the left, the free end of the elastic member 40 rotates counterclockwise to the left with the fixed end as the center, as shown in FIG. Figure 4 As shown, when the mobile device bracket is in a loose state, point B is located on the left side of point C, and the AB line is located on the left side of point C. The tension of the elastic member 40 can keep the clamping arm in an extended unlocked state. Optionally, a first bolt 54 is provided on the side wall of the gear 50 close to the front side of the shell 20, and a second bolt 24 is provided inside the side wall of the rear side of the shell 20. The first bolt 54 includes a first card slot 541, and the second bolt 24 includes a second card slot 241. The free end of the elastic member 40 is engaged with the first card slot 541, and the fixed end of the elastic member 40 is engaged with the second card slot 241. The first card slot 541 and the second card slot 241 are provided, so that the connection between the elastic member 40 and the gear 50 and the shell 20 is more reliable.

[0027] Furthermore, a groove 12 is provided at a position corresponding to the fixed end on the lower support arm 10, and the second bolt 24 is inserted into the groove 12. The groove 12 is open on the side facing the gear 50. During the rotation of the gear 50, the free end of the elastic member 40 rotates with the fixed end as the center, and the elastic member 40 moves in the groove 12 along the width direction of the opening of the groove 12. The width of the opening of the groove 12 corresponds to the angle formed by the rotation of the elastic member 40. In this embodiment, the groove 12 is generally V-shaped with the opening facing the direction where the gear 50 is located. Through the design of the groove 12, not only the thickness of the mobile device bracket in the front-to-back direction is reduced, but also the travel of the elastic member 40 following the rotation of the gear 50 will not be limited by the travel of the lower support arm 10 moving up and down, thereby improving the reliability of the electronic device bracket switching between the clamped state and the unlocked state.

[0028] In other embodiments, the linkage mechanism further includes a pushing part, which is disposed between the clamping arm and the housing 20. When the gear 50 rotates in the first direction, one end of the pushing part follows the movement of the clamping arm to form a restoring force. For example, the pushing part may be an elastic member, the two ends of which are respectively connected to the clamping arm and the housing 20. The elastic member is squeezed to form a rebound force, and the rebound force is the restoring force that can push the clamping arm to move inversely and switch to an unlocked state to loosen the object; or, the pushing part may include two magnets, which are respectively disposed on the clamping arm and the housing 20 and the two magnets are arranged so that the same magnetic poles face each other and repel each other. When the clamping arm moves inwards under the drive of the gear 50 to clamp the object, the magnets are relatively close to form a repulsive force. When the guide part of the reset mechanism drives the gear 50 to rotate in the second direction, the repulsive force is the restoring force that can push the clamping arm to move inversely and switch to an unlocked state to loosen the object. When the user takes out the mobile device during use, the gravity acting on the lower support arm 10 disappears. Through the transmission action between the lower support arm 10, the linkage mechanism and the clamping arm, the clamping arm loses the force to continue clamping, and the resilience of the pushing part bounces the clamping arm open. The movement of the clamping arm drives the linkage mechanism and the lower support arm 10 to transmit, so that the lower support arm 10 moves in the direction of the gear 50. The lower support arm 10 gives the mobile device an upward force, thereby making it easier for the user to take out the mobile device.

[0029] Furthermore, a guide structure is provided between the gear 50 and the lower support arm 10, and the guide structure includes a guide column 53 and a guide slot 11. The extension direction of the guide slot 11 forms a set angle with the movement direction of the lower support arm 10. The guide column 53 is inserted into the guide slot 11. When the lower support arm 10 moves in a direction away from the housing 20, the guide column 53 moves in the guide slot 11 to drive the gear 50 to rotate. The guide structure is provided between the gear 50 and the lower support arm 10, so that the downward linear movement of the lower support arm 10 can be converted into the rotation of the driving gear 50. After the user places the mobile device on the lower support arm 10, the lower support arm 20 will drive the gear 50 to rotate under the gravity of the mobile device, and then drive the clamping arm to telescope through the gear 50 to achieve the effect of controlling the clamping arm to clamp.

[0030] Further, the linkage mechanism also includes a rotating wheel 60, and the clamping arm includes a first clamping arm 70 and a second clamping arm 80. The first clamping arm 70 and the second clamping arm 80 are located on opposite sides of the rotating wheel 60, and the first clamping arm 70 and the second clamping arm 80 are respectively provided with a clamping tooth engaged with the rotating wheel 60. The first clamping arm 70 is further provided with a clamping tooth engaged with the gear 50 on a side away from the rotating wheel 60. The first clamping arm 70 is provided with a first clamping tooth 52 on at least part of the periphery of the gear 50, and the periphery of the rotating wheel 60 is provided with a second clamping tooth 61. The first clamping arm 70 and the second clamping arm 80 are relatively located from the housing 20. The two sides are inserted into the interior of the shell 20. For the sake of convenience, the teeth provided on the opposite sides of the first clamping arm 70 are defined as the third teeth 71, and the teeth provided on the second clamping arm 80 are defined as the fourth teeth 81. The third teeth 71 on the first clamping arm 70 are respectively engaged with the first teeth 52 and the second teeth 61, and the fourth teeth 81 on the second clamping arm 80 are engaged with the second teeth 61. When the gear 50 rotates, the first clamping arm 70, the second clamping arm 80, and the rotating wheel 50 are driven, so that the first clamping arm 70 and the second clamping arm 80 are relatively opened or relatively clamped.

[0031] Furthermore, the rotating wheel 60 includes a disc portion close to the rear side wall of the shell and a boss extending from the center of the disc portion to the front side wall of the shell, and the outer periphery of the boss is provided with a second locking tooth 61 respectively engaged with the first clamping arm 70 and the second clamping arm 80; the disc portion can prevent the first clamping arm 70 from deviating from the operating trajectory during movement.

[0032] Further, the guide portion includes a linkage groove 31 provided on the reset button 30 and a linkage column 51 on the gear 50, the linkage column 51 is inserted into the linkage groove 31, the extension direction of the linkage groove 51 is inclined relative to the movement direction of the lower support arm 10, when the reset button 30 is pressed, the reset button 30 telescopes and drives the linkage column 51 to move along the linkage groove 31, driving the gear 50 to move in the second direction. Among them, the extension direction of the linkage groove 51 is inclined relative to the movement direction of the lower support arm 10, the direction of the pressing force on the reset button 30 is perpendicular to the movement direction of the lower support arm 10, the end of the reset button 30 away from the linkage groove 31 protrudes from one side of the electronic device bracket, when the reset button 30 is pressed, the reset button 30 moves in the direction close to the center of the gear 50, forcing the linkage column 51 to slide upward along the linkage groove 31, and then driving the gear 50 to rotate in the second direction. Due to the setting of the linkage between the gear 50 and the lower support arm 10 and the clamping arm, the electronic device bracket can be switched from the clamped state to the unlocked state.

[0033] Furthermore, the shell 20 includes a front shell and a rear shell that are detachably connected; an anti-skid portion 21 is provided on the side of the front shell facing the clamped object. In the present embodiment, the anti-skid portion 21 includes a plurality of long strip-shaped protrusions, which can increase the friction between the mobile device and the mobile device holder, thereby further preventing the mobile phone from slipping. In other embodiments, the anti-skid portion 21 can be provided with protrusions of other shapes; and / or, a connecting portion 22 is provided on the side of the rear shell away from the clamped object, and a thread 221 is provided on the outer surface of the connecting portion 22. Users can connect the connecting portion 22 with different connecting parts as needed, so as to facilitate the installation of the electronic device holder as a whole on a vehicle frame or other locations for use.

[0034] In summary, the mobile device holder provided by the embodiment of the present invention includes a shell 20, a clamping arm and a lower support arm 10 movably connected relative to the shell 20, a linkage mechanism and a reset mechanism, the linkage mechanism includes a gear 50 rotatably mounted on the shell 20, the lower support arm 10 is transmission-connected to the clamping arm through the gear 50, the reset mechanism includes a reset button 30, and a guide portion slidingly connecting the reset button 30 and the gear 50, when the lower support arm 10 is subjected to the gravity of the object placed thereon and moves in a direction away from the shell 20, the gear 50 is driven to rotate in a first direction, and the gear 50 drives the clamping arms to move toward each other to a clamping state of the clamped object; the reset button 30 is pressed, and the reset button 30 drives the gear 50 to rotate in a second direction opposite to the first direction through the guide portion, and the gear 50 drives the clamping arm to move inversely and switch to an unlocking state to loosen the object, and the lower support arm 10 moves in a direction close to the shell 20 and returns to its initial position.

[0035] When the user wants to open the mobile device holder to take out the mobile device, he needs to press the reset button 30 to make the reset button 30 move laterally, thereby driving the gear 50 in the linkage mechanism to rotate, and the locking portion rotates with the gear 50 and deflects relative to the center of the gear 50. The locking portion deflects and is located on one side of the center of the gear 50, thereby driving the linkage mechanism to move and then drive the clamping arm to extend, and the lower support arm 10 clamps to generate an upward thrust, which is convenient for the user to take the mobile device; when the mobile device is placed on the lower support arm 10, the gravity of the mobile device acts on the lower support arm 10, and the lower support arm 10 drives the gear 50 in the linkage mechanism to rotate, thereby driving the reset button 30 to reset, and the clamping arms are clamped with each other, and the locking portion rotates with the gear 50 and deflects relative to the center of the gear 50. The locking portion deflects and is located on the other side of the center of the gear 50. The force formed by the locking portion acts on the gear 50, driving the gear 50 to rotate, and then driving the clamping arm to clamp. At this time, the mobile device holder will remain clamped under the force of the locking portion, making the clamping of the mobile device more stable and preventing vibration from loosening.

[0036] The above is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technician familiar with this profession can make some changes or modifications to the technical contents disclosed above without departing from the scope of the technical solution of the present invention, which are equivalent embodiments of equivalent changes. However, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims

1. A mobile device stand, characterized in that: The invention comprises a shell, a clamping arm and a lower supporting arm movably connected relative to the shell, a linkage mechanism and a reset mechanism, the linkage mechanism comprising a gear rotatably mounted on the shell, the lower supporting arm is transmission-connected to the clamping arm through the gear, the reset mechanism comprises a reset button and a guide portion slidably connecting the reset button and the gear, when the lower supporting arm is acted upon by the gravity of an object placed thereon and moves in a direction away from the shell, the gear is driven to rotate in a first direction, and the gear drives the clamping arms to move towards each other to a clamping state where the clamping object is clamped; when the reset button is pressed, the reset button drives the gear to rotate in a second direction opposite to the first direction through the guide portion, and the gear drives the clamping arm to move in the opposite direction and switch to an unlocking state where the object is loosened, and the lower supporting arm moves in a direction close to the shell and returns to an initial position; The linkage mechanism further comprises a locking part, two ends of which are connected to the gear and the housing respectively, and the locking part follows the rotation of the gear and deflects relative to the center of the gear. In the clamping state, the locking part deflects and is located on one side of the center of the gear, providing a pulling force to the gear that tends to rotate in the first direction, thereby keeping the clamping arm clamped; The locking portion comprises an elastic member, wherein one end of the elastic member connected to the housing is a fixed end, and one end connected to the gear is a free end, and the free ends rotate along with the gear in the first direction or in the second direction and are respectively located at two opposite sides of the center of the gear; The linkage mechanism also includes a pushing part, both ends of which are respectively connected to the clamping arm and the shell. When the gear rotates in the first direction, one end of the pushing part follows the movement of the clamping arm to form a restoring force. When the gear rotates in the second direction, the restoring force pushes the clamping arm to move in the opposite direction and switch to an unlocked state to loosen the object.

2. The mobile device stand according to claim 1, characterized in that: A groove is provided on the lower supporting arm at a position corresponding to the fixed end. The fixed end is connected to the shell after passing through the groove. The groove is open on the side facing the gear. During the rotation of the gear, the free end rotates with the fixed end as the center. The fixed end moves in the groove along the width direction of the opening. The width of the opening corresponds to the angle formed by the rotation of the elastic member.

3. The mobile device stand according to claim 1, characterized in that: A guide structure is also provided between the gear and the lower supporting arm, and the guide structure includes a guide column and a guide groove. The extension direction of the guide groove forms an angle with the movement direction of the lower supporting arm. The guide column is inserted into the guide groove. When the lower supporting arm moves in a direction away from the shell, the guide column moves in the guide groove to drive the gear to rotate.

4. The mobile device stand according to claim 1, characterized in that: The linkage mechanism also includes a rotating wheel, and the clamping arm includes a first clamping arm and a second clamping arm, the first clamping arm and the second clamping arm are located on opposite sides of the rotating wheel, and the first clamping arm and the second clamping arm are respectively provided with latching teeth engaged with the rotating wheel, and the first clamping arm is also provided with latching teeth engaged with the gear on a side away from the rotating wheel.

5. The mobile device stand according to claim 4, characterized in that: The rotating wheel comprises a disc portion close to the rear side wall of the shell and a protruding column extending from the center of the disc portion to the front side wall of the shell, and the outer periphery of the protruding column is provided with latching teeth respectively engaged with the first clamping arm and the second clamping arm.

6. The mobile device stand according to any one of claims 1 to 5, characterized in that: The guide portion includes a linkage groove provided on the reset button and a linkage column provided on the gear, the linkage column is inserted in the linkage groove, and the extension direction of the linkage groove is inclined relative to the movement direction of the lower support arm. When the reset button is pressed, the reset button telescopes and drives the linkage column to move along the linkage groove, thereby driving the gear to move in the second direction.

7. The mobile device stand according to any one of claims 1 to 5, characterized in that: The housing comprises a front housing and a rear housing that are detachably connected; The side of the front shell facing the clamped object is provided with an anti-slip portion; and / or the side of the rear shell away from the clamped object is provided with a connecting portion.

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