Support seat and support

Abstract

The utility model relates to the technical field of 3C accessories, in particular to a support seat and a support. The support base comprises a clamping plate, a pressing plate, a screw rod, an inner sleeve assembly and a pressing rotary knob. The clamping plate is provided with at least one clamping jaw which forms a clamping space; the pressing plate is located in the clamping space, one end of the screw is connected with the pressing plate, and the other end of the screw penetrates through the clamping plate from one side of the clamping space. The inner sleeve assembly is rotatably arranged on the screw rod in a sleeving manner and is in threaded connection with the screw rod; the pressing knob is provided with a sleeving opening, and the pressing knob is installed at one end of the inner sleeve assembly through the sleeving opening. A plurality of rotary pushing grooves surrounding a circle are formed in the side wall of the sleeving opening, each rotary pushing groove comprises a first rotary pushing wall and a second rotary pushing wall, the inner sleeve assembly comprises an elastic arm, the elastic arms are located in the sleeving opening, and the free ends of the elastic arms are embedded into the rotary pushing grooves under the action of elastic force; the free end is provided with a first pushed side wall and a second pushed side wall, the first pushed side wall abuts against the first rotary pushing wall, and the second pushed side wall abuts against the second rotary pushing wall.

Description

Technical Field

[0001] The utility model relates to the technical field of 3C accessories, in particular to a bracket seat and a bracket. Background Art

[0002] A mobile phone car mount is a commonly used device for holding a mobile phone while driving. Cars currently have a display screen installed on their center consoles. To facilitate installation, mobile phone car mounts have emerged on the market that can be clamped to a corner or edge of the display screen.

[0003] This vehicle-mounted holder uses a knob to push a clamping plate against a corner or edge of the display screen. The clamping plate and opposing clamping plates on the vehicle-mounted holder work together to clamp the display screen. However, since the clamping plate is clamped against the display screen by turning the knob, excessive rotation of the knob can easily damage the display screen. Utility Model Content

[0004] The embodiment of the utility model provides a bracket seat and a bracket to solve the problem in the prior art that the bracket clamping plate is clamped on the display screen by rotating a knob, and if the knob is rotated excessively, the clamping plate is likely to damage the display screen.

[0005] The utility model discloses a bracket seat, comprising a splint, a pressing plate, a screw, an inner sleeve assembly and a pressing knob; the splint has at least one clamping claw, the clamping claw forms a clamping space; the pressing plate is located in the clamping space, one end of the screw is connected to the pressing plate, and the other end is provided with a splint from one side of the clamping space; the inner sleeve assembly can be rotatably sleeved on the screw and threadedly connected to the screw; a sleeve opening is provided on the pressing knob, and the pressing knob is installed on one end of the inner sleeve assembly through the sleeve opening; a plurality of rotary push grooves surrounding the sleeve opening are provided on the side wall of the sleeve opening, the rotary push groove comprises a first rotary push wall and a second rotary push wall, the inner sleeve assembly comprises an elastic arm, the elastic arm is located in the sleeve opening, and the free end of the elastic arm is embedded in the rotary push groove under the action of elastic force; the free end has a first pushed side wall and a second pushed side wall, the first pushed side wall abuts against the first rotary push wall, and the second pushed side wall abuts against the second rotary push wall;

[0006] Among them, when the clamping knob is rotated forward, the first push wall pushes the first pushed side wall, and the inner sleeve assembly extends in the clamping space through the threaded driving screw, driving the clamping plate to press on the clamped object, and when the elastic arm is overloaded in the forward rotation direction, the first push wall and the first pushed side wall slide relative to each other, and the elastic arm slides into the next push groove; when the clamping knob is rotated backward, the second push wall pushes the second pushed side wall, and the inner sleeve assembly contracts in the clamping space through the threaded driving screw, driving the clamping plate to release the clamped object.

[0007] Optionally, the inner sleeve assembly includes an inner sleeve and a nut; the inner sleeve can be rotatably mounted on the screw, and the elastic arm is arranged on the end of the inner sleeve away from the splint; the nut is limitedly installed in the inner sleeve so that the inner sleeve can drive the nut to rotate synchronously; the nut is threadedly connected to the screw; and the tightening knob is installed on the end of the inner sleeve away from the splint.

[0008] Optionally, no external thread is provided on the peripheral wall of the end where the screw is connected to the clamping plate; an insertion cavity is axially opened in the inner sleeve, and an elastic member is provided at the end of the insertion cavity away from the clamping plate, and the elastic member abuts against the end of the screw away from the clamping plate.

[0009] Optionally, an installation cavity communicating with the insertion cavity is defined in one end of the inner sleeve close to the splint, and the nut is positionally installed in the installation cavity.

[0010] Optionally, the inner wall of the insertion cavity is provided with a plurality of tight-fitting bosses extending axially; a tightening cavity is opened on the tight-fitting bosses; the bracket seat also includes a decorative cover, the decorative cover is provided on the tightening knob, and the inner side surface of the decorative cover is provided with a plurality of tightening columns corresponding to the tight-fitting bosses, and the tightening columns are respectively inserted into the tightening cavities.

[0011] Optionally, the inner side surface of the decorative cover is provided with a tight-fitting edge, which is located in the area surrounded by the multiple tightening columns. The tight-fitting edge is provided with tight-fitting grooves corresponding to the multiple tightening columns, and the tight-fitting grooves are adapted to fit the tight-fitting protrusions.

[0012] Optionally, a plurality of limiting protrusions are provided in the tight-fitting peripheral edge; a mounting groove is defined between the limiting protrusions, and one end of the elastic member is mounted in the mounting groove.

[0013] Optionally, the first rotary push wall is an inclined wall that is inclined away from one end of the second rotary push wall toward the center of the sleeve opening; the first pushed side wall is adapted to be matched with the first rotary push wall; the second rotary push wall is arranged toward the first rotary push wall, and the second pushed side wall is adapted to be matched with the second rotary push wall.

[0014] Optionally, a tangent circle is defined with the center of the sleeve opening as the center and a line between the end of the first rotary push wall away from the second rotary push wall and the center of the sleeve opening as the radius, the tangent of the end of the first rotary push wall away from the second rotary push wall at the end of the first rotary push wall away from the second rotary push wall to the tangent circle is the first tangent, and the angle between the first tangent and the first rotary push wall is 10° to 45°; and / or the angle between the first rotary push wall and the second rotary push wall is 52° to 62°.

[0015] The utility model also discloses a bracket, comprising a clamping mechanism and the bracket seat, wherein the clamping mechanism is connected to the bracket seat.

[0016] Compared with the prior art, the bracket seat provided by the embodiment of the present invention has the following beneficial effects: when the clamping knob of the present invention is rotated in the forward direction, the clamping knob pushes the first pushed side wall against the first pushed side wall to drive the inner sleeve assembly to rotate. Since the inner sleeve assembly is threadedly connected to the screw, the inner sleeve assembly thread drives the screw to extend in the clamping space, driving the clamping plate to press on the clamping object, such as the car center console display screen. The clamping plate and the clamping claws of the clamping plate cooperate to achieve the clamping of the bracket seat. When the clamping plate presses on the display screen with a certain clamping force, the clamping knob continues to be rotated. Since the clamping plate is already pressed on the display screen and it is difficult to press further down, the elastic arm will be overloaded in the forward rotation direction. That is, when the operator continues to forcefully rotate the clamping knob, the first push wall and the first pushed side wall slide relative to each other, and the elastic arm slides into the next push groove. In this way, after the clamping plate is pressed into place on the display screen, even if the operator continues to rotate the clamping knob, the elastic arm "slips" in the push-rotation groove and continuously slides from the current push-rotation groove to the next push-rotation groove, and the clamping plate will not be further driven to press against the display screen, thereby avoiding the problem of the display screen being damaged by the clamping plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments, in which:

[0018] Figure 1 It is a schematic diagram of the bracket seat of the embodiment of the utility model;

[0019] Figure 2 This is another schematic diagram of the bracket seat according to an embodiment of the present invention;

[0020] Figure 3 It is a cross-sectional view of the bracket seat of the embodiment of the utility model;

[0021] Figure 4 yes Figure 3 A partial enlarged view of part A;

[0022] Figure 5 This is an exploded schematic diagram of the decorative cover and the pressing knob of an embodiment of the present utility model;

[0023] Figure 6 This is another schematic diagram of the bracket seat according to an embodiment of the present invention;

[0024] Figure 7 yes Figure 6 A partial enlarged view of part C in the middle;

[0025] Figure 8 It is a schematic diagram of the kit in an embodiment of the present utility model;

[0026] Figure 9 It is a schematic diagram of a pressing knob according to an embodiment of the present utility model;

[0027] Figure 10 This is another schematic diagram of a compression knob according to an embodiment of the present invention;

[0028] Figure 11 This is a schematic diagram of an embodiment of the utility model in which the elastic arm slides out of the rotary push slot;

[0029] Figure 12 It is a schematic diagram of a decorative cover according to an embodiment of the present utility model;

[0030] Figure 13 This is an exploded schematic diagram of the bracket seat of the embodiment of the utility model;

[0031] Figure 14 This is another exploded schematic diagram of the bracket seat according to an embodiment of the present invention;

[0032] Figure 15 yes Figure 14 A partial enlarged view of part B.

[0033] The reference numerals in the figures are:

[0034] 1. Clamping plate; 11. Clamping claw; 12. Clamping space; 2. Pressing plate; 3. Screw; 4. Inner sleeve assembly; 41. Inner sleeve assembly; 411. Insertion cavity; 411a. Tight fitting boss; 411a1. Insertion cavity; 412. Mounting cavity; 413. Limiting edge; 414. Elastic arm; 414a. Free end; 414a1. First push side wall; 414a2. Second push side wall; 42. Nut; 5. Outer sleeve assembly; 51. Extension portion; 511. Positioning groove; 52. Limiting edge Groove; 6. Pressing knob; 61. Set opening; 62. Push groove; 621. First push wall; 622. Second push wall; 7. Locking knob; 8. First arm; 81. First opening; 9. Elastic member; 10. Positioning piece; 101. Spherical protrusion; 102. Positioning ridge; 20. Second arm; 30. External part; 40. Decorative cover; 401. Tightening column; 402. Tight fitting edge; 402a. Tight fitting groove; 403. Limiting ridge; 404. Mounting groove. DETAILED DESCRIPTION

[0035] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. Now, in conjunction with the accompanying drawings, a detailed description of the preferred embodiments of the present utility model will be given.

[0036] The present invention provides a support seat. Figures 1 to 9 、 Figure 11As shown, the bracket seat includes a splint 1, a clamping plate 2, a screw 3, an inner sleeve assembly 4 and a clamping knob 6; the splint 1 has at least one clamping claw 11, and the clamping claw 11 forms a clamping space 12; the clamping plate 2 is located in the clamping space 12, one end of the screw 3 is connected to the clamping plate 2, and the other end is passed through the splint 1 from one side of the clamping space 12; the inner sleeve assembly 4 can be rotatably sleeved on the screw 3 and is threadedly connected to the screw 3; a sleeve opening 61 is provided on the clamping knob 6, and the clamping knob 6 is installed on one end of the inner sleeve assembly 4 through the sleeve opening 61.

[0037] The side wall of the sleeve opening 61 is provided with a plurality of rotary push grooves 62 which surround the sleeve, and the rotary push grooves 62 include a first rotary push wall 621 and a second rotary push wall 622. The inner sleeve assembly 4 includes an elastic arm 414, which is located in the sleeve opening 61. The free end 414a of the elastic arm 414 is embedded in the rotary push groove 62 under the action of elastic force; the free end 414a has a first pushed side wall 414a1 and a second pushed side wall 414a2, the first pushed side wall 414a1 abuts against the first rotary push wall 621, and the second pushed side wall 414a2 abuts against the second rotary push wall 622.

[0038] When the clamping knob 6 is rotated forward, the first rotary pushing wall 621 pushes against the first pushed side wall 414a1, and the inner sleeve assembly 4 extends in the clamping space 12 via the threaded drive screw 3, driving the clamping plate 2 to press against the clamped object. When the elastic arm 414 is overloaded in the forward rotation direction, the first rotary pushing wall 621 slides relative to the first pushed side wall 414a1, and the elastic arm 414 slides into the next rotary pushing groove 62. When the clamping knob 6 is rotated backward, the second rotary pushing wall 622 pushes against the second pushed side wall 414a2, and the inner sleeve assembly 4 contracts in the clamping space 12 via the threaded drive screw 3, driving the clamping plate 2 to release the clamped object.

[0039] When the clamping knob 6 of the present invention is rotated forward, the first push wall 621 pushes against the first pushed side wall 414a1, driving the inner sleeve assembly 4 to rotate. Since the inner sleeve assembly 4 is threadedly connected to the screw rod 3, the inner sleeve assembly 4 threads drive the screw rod 3 to extend in the clamping space 12, driving the clamping plate 2 to clamp against the clamping object, such as a display screen on a car center console. The clamping plate 2 cooperates with the clamping claws 11 of the clamping plate 1 to clamp the bracket. When the clamping plate 2 is pressed against the display screen with a certain clamping force, the clamping knob 6 is further rotated. Since the clamping plate 2 is already pressed against the display screen and cannot be pressed further downward, the elastic arm 414 will be overloaded in the forward rotation direction. That is, when the operator continues to forcefully rotate the clamping knob 6, the first push wall 621 slides relative to the first pushed side wall 414a1, and the elastic arm 414 slides into the next push groove 62. In this way, after the clamping plate 2 is pressed into place on the display screen, even if the operator continues to rotate the clamping knob 6, the elastic arm 414 "slips" in the push-rotation groove 62 and continuously slides from the current push-rotation groove 62 to the next push-rotation groove 62. The clamping plate 2 will not be further driven to press against the display screen, thereby avoiding the problem of the display screen being damaged by the clamping plate 2.

[0040] Specifically, in one embodiment, the forward rotation of the clamping knob 6 is the counterclockwise rotation of the clamping knob 6, that is, the forward rotation direction is the counterclockwise direction, and the reverse rotation is the clockwise direction. In the present invention, the forward rotation is the counterclockwise rotation and the reverse rotation is the clockwise rotation. Of course, in another embodiment, the forward rotation of the clamping knob 6 can also be the clockwise rotation of the clamping knob 6, that is, the forward rotation direction is the clockwise direction, and the reverse rotation is the counterclockwise direction.

[0041] Further, combined with Figures 7 to 11 As shown, by setting the inclination direction and degree of inclination of the first rotary pushing wall 621, the first rotary pushing wall 621 can be configured to not only push the first pushed side wall 414a1, but also slide relative to the first pushed side wall 414a1 when overloaded, allowing the elastic arm 414 to slide into the next rotary pushing groove 62. The degree of inclination of the first rotary pushing wall 621 determines the magnitude of the force that can cause "slippage" between the first rotary pushing wall 621 and the first pushed side wall 414a1 under overload. The first pushed side wall 414a1 of the elastic arm 414 can be adaptively configured to correspond to the first rotary pushing wall 621. The second rotary pushing wall 622 can be configured to contact the second pushed side wall 414a2 of the elastic arm 414 to correspond to the second rotary pushing wall 622.

[0042] Specifically, if Figure 9 and Figure 10As shown, the first rotary pushing wall 621 is an inclined wall with one end away from the second rotary pushing wall 622 tilted toward the center of the sleeve opening 61; the first pushed side wall 414a1 is adapted to be disposed with the first rotary pushing wall 621; the second rotary pushing wall 622 is disposed toward the first rotary pushing wall 621, and the second pushed side wall 414a2 is adapted to be disposed with the second rotary pushing wall 622. The inclination of the first rotary pushing wall 621 with one end away from the second rotary pushing wall 622 toward the center of the sleeve opening 61 enables the first rotary pushing wall 621 to both push the first pushed side wall 414a1 and, when overloaded, slide relative to the first pushed side wall 414a1, allowing the elastic arm 414 to slide into the next rotary pushing groove 62.

[0043] More specifically, if Figure 10 As shown, a tangent circle is defined with the center of the sleeve opening 61 as the center and the line connecting the end of the first rotary push wall 621 away from the second rotary push wall 622 and the center of the sleeve opening 61 as the radius. The tangent line of the tangent circle at the end of the first rotary push wall 621 away from the second rotary push wall 622 at the end of the first rotary push wall 621 away from the second rotary push wall 622 is the first tangent line. The angle α between the first tangent line and the first rotary push wall 621 is 10° to 45°. Preferably, the angle α between the first tangent line and the first rotary push wall 621 is 16°. The angle β between the first rotary push wall 621 and the second rotary push wall 622 is 52° to 62°. Preferably, the angle β between the first rotary push wall 621 and the second rotary push wall 622 is 57°±0.2°.

[0044] Further, combined with Figures 13 to 15 As shown, the bracket base also includes an outer sleeve 5, a locking knob 7, and a first arm 8. On the side of the clamping plate 1 facing away from the clamping space 12, the outer sleeve 5 is mounted on the inner sleeve 4 and connected to the clamping plate 1. The locking knob 7 is mounted on the outer sleeve 5 and threadedly connected to the outer sleeve 5. The first arm 8 is mounted on the outer sleeve and is located on the side of the locking knob 7 closer to the clamping plate 1. When the clamping knob 6 is rotated, the clamping knob 6 drives the inner sleeve 4 to rotate. The inner sleeve 4 extends and retracts relative to the clamping plate 1 via the threaded drive screw 3, thereby driving the clamping plate 2 to move. The clamping plate 2 cooperates with the clamping claw 11 to achieve clamping at the clamping position, such as the corner of the car's center console display. The bracket seat is also provided with a locking knob 7 and an outer sleeve 5, wherein the locking knob 7 is sleeved on the outer sleeve 5 and is threadedly connected to the outer sleeve 5. The first arm 8 can be locked or loosened by turning the locking knob 7, thereby realizing the angle adjustment and firm positioning of the first arm 8. Even when bumped or shaken, the arm is not prone to unexpected rotation and can be maintained at the use angle, and the positioning effect of the first arm 8 is good.

[0045] Specifically, the clamping claws 11 can be provided on two adjacent sides of the clamping plate 1, in which case the bracket can be clamped on a corner of the car's center console display screen. Alternatively, the clamping claws 11 can be provided on one side of the clamping plate 1, in which case the bracket can be clamped on the edge of the car's center console display screen. Of course, the bracket of the present invention can also be applied to other applicable clamping positions. The scenario of application on the car's center console display screen exemplified here is only one example.

[0046] The first arm 8 can be connected to a clamping mechanism via the second arm 20 described below, which clamps electronic devices such as mobile phones. The outer sleeve 5 can be mounted on the clamping plate 1 using screws. The outer sleeve 5 is provided with external threads, and the locking knob 7 is provided with internal threads, thereby achieving a threaded connection between the outer sleeve 5 and the locking knob 7. When the locking knob 7 is rotated, it moves toward the clamping plate 1, pressing the first arm 8, thereby locking the first arm 8. When the locking knob 7 moves away from the clamping plate 1, it releases the first arm 8, thereby adjusting the operating angle of the first arm 8. The pressing plate and the screw 3 can be fixed together using screws.

[0047] Specifically, the inner sleeve assembly 4 includes an inner sleeve 41 and a nut 42; the inner sleeve 41 is rotatably mounted on the screw 3, and the elastic arm 414 is provided on the end of the inner sleeve 41 away from the clamping plate 1; the nut 42 is limitedly mounted in the inner sleeve 41 so that the inner sleeve 41 can drive the nut 42 to rotate synchronously; the nut 42 is threadedly connected to the screw 3; the outer sleeve 5 is mounted on the inner sleeve 41, and the clamping knob 6 is installed on the end of the inner sleeve 41 away from the clamping plate 1. When the clamping knob 6 is rotated, it drives the inner sleeve 41 to rotate, and the inner sleeve 41 in turn drives the nut 42 to rotate. The nut 42 drives the screw 3 to extend and retract on the clamping plate 1, thereby driving the clamping plate 2 to extend and retract in the clamping space 12, thereby achieving the clamping or loosening of the bracket seat. A limiting edge 413 is provided on the peripheral wall of the inner sleeve 41 near one end of the clamping plate 1. A limiting groove 52 is provided in the outer sleeve 5 corresponding to the limiting edge 413. The limiting edge 413 is embedded in the limiting groove 52, thereby limiting the position of the inner sleeve 41 and allowing the inner sleeve 41 to rotate within the outer sleeve 5. The nut 42 cooperates with the screw 3, providing a stable structure, long service life, and resistance to damage.

[0048] Specifically, the outer wall of the screw rod 3 at the end connected to the clamping plate 2 is not provided with an external thread; the inner sleeve 41 is provided with an insertion cavity 411 along the axial direction, and an elastic member 9 is provided in the insertion cavity 411 at the end away from the clamping plate 1. The elastic member 9 abuts against the end of the screw rod 3 away from the clamping plate 1. The outer wall of the screw rod 3 at the end connected to the clamping plate 2 is not provided with an external thread. This allows the portion of the screw rod 3 without the outer thread to be disengaged from the threaded connection with the nut 42 after the clamping plate 2 is retracted to the limit position. At this time, even if the operator continues to rotate the clamping knob 6 clockwise, the screw rod 3 is in an "idle" state. This can prevent the elastic arm 414 from being damaged by excessive force from the clamping knob 6. Furthermore, when it is necessary to drive the clamping plate 2 to tighten and rotate the clamping knob 6 counterclockwise, the elastic member 9 can push the screw rod 3 through its elastic force, so that the starting end of the screw rod 3 can easily engage with the nut 42.

[0049] Further, if Figure 8 and Figure 12 As shown, the inner wall of the insertion cavity 411 is provided with a plurality of axially extending tight-fitting protrusions 411a; the tight-fitting protrusions 411a are provided with a tightening cavity 411a1. The bracket seat also includes a decorative cover 40, which is provided on the clamping knob 6. The inner side of the decorative cover 40 is provided with a plurality of tightening columns 401 corresponding to the tight-fitting protrusions 411a. The tightening columns 401 are respectively inserted into the tightening cavities 411a1. Through the cooperation between the tightening columns 401 and the tightening cavity 411a1, the decorative cover 40 can be securely and conveniently installed on the clamping knob 6. The decorative cover 40 can cover the sleeve opening 61, the push-pull groove 62, and the elastic arm 414, etc., making the bracket seat more beautiful. In addition, the tight-fitting protrusions 411a can also narrow the space of the tightening cavity 411a1, acting as a limit screw 3, especially when the screw 3 is not engaged with the nut 42.

[0050] The inner side of the decorative cover 40 is provided with a tight-fitting edge 402, which is located in the area surrounded by the multiple locking posts 401. The tight-fitting edge 402 is provided with tight-fitting grooves 402a corresponding to the multiple locking posts 401. The tight-fitting grooves 402a are adapted to fit with the locking protrusions 411a. The tight-fitting grooves 402a can further improve the fit between the decorative cover 40 and the locking protrusions 411a.

[0051] The tight-fitting edge 402 is provided with multiple limiting protrusions 403, defining a mounting slot 404 between these protrusions 403. One end of the elastic member 9 is mounted in the mounting slot 404. By providing the limiting protrusions 403 in the tight-fitting edge 402 to form the mounting slot 404 for mounting the elastic member 9, the structure is simple and space is fully utilized. Specifically, the multiple limiting protrusions 403 are connected to the tight-fitting edge 402 to enhance structural strength. The elastic member 9 may be a spring.

[0052] Furthermore, a mounting cavity 412 is defined within the end of the inner sleeve 41 near the clamping plate 1 and communicates with the insertion cavity 411. The nut 42 is positioned within the mounting cavity 412. The side of the nut 42 has multiple edges, and the shape of the mounting cavity 412 is adapted to the shape of the nut 42. This allows the nut 42 to rotate after being installed within the mounting cavity 412. The provision of the mounting cavity 412 within the end of the inner sleeve 41 near the clamping plate 1 facilitates assembly of the nut 42.

[0053] An extension 51 is provided around the outer sleeve 5 at one end near the clamping plate 1. The extension 51 is secured to the clamping plate 1 via screws. The bracket seat includes a positioning piece 10, which is mounted on the outer sleeve 5 and positioned between the first arm 8 and the extension 51. The positioning piece 10 is positionally connected to the first arm 8, allowing the positioning piece 10 to rotate around the outer sleeve 5 along with the first arm 8. At least one spherical protrusion 101 is provided on the side of the positioning piece 10 facing the extension 51. The extension 51 is also provided with a plurality of positioning grooves 511 extending around the outer sleeve 5. Each of the positioning grooves 511 is located along the rotational trajectory of the spherical protrusion 101. When the first arm 8 rotates, it drives the positioning piece 10 to rotate. During this rotation, the spherical protrusion 101 engages with or disengages from the positioning groove 511. The cooperation between the spherical protrusion 101 and the positioning groove 511 serves to position the first arm 8 while enhancing the feel of the rotation operation. When the pressing knob 6 is pressed, the first arm 8 is pressed against the positioning piece 10 .

[0054] Specifically, the multiple positioning grooves 511 are evenly spaced, and the number of spherical protrusions 101 is equal to the number of positioning grooves 511 and is arranged one-to-one with the positioning grooves 511. This ensures that all spherical protrusions 101 are embedded in the corresponding positioning grooves 511, thereby improving the positioning effect of the first arm 8.

[0055] Furthermore, the positioning piece 10 is provided with a locking ridge 102, and the first arm 8 is provided with a first opening 81. The locking ridge 102 is locked in the first opening 81. By locking the locking ridge 102 with the first opening 81, the first arm 8 can drive the positioning piece 10 to rotate together. The first opening 81 extends along the length of the first arm 8. Thus, when the locking knob 7 releases the first arm 8, the first arm 8 can be adjusted within the length of the first opening 81, thereby achieving adjustment of the clamping position.

[0056] More specifically, the bracket seat also includes a second arm 20, one end of which is rotatably connected to the end of the first arm 8 away from the clamping plate 1. The addition of the second arm 20 can extend the usable length of the clamping seat, and the rotatable connection between the second arm 20 and the first arm 8 can adjust the clamping angle. The second arm 20 and the first arm 8 can be rotatably connected via a damping shaft. The other end of the second arm 20 is provided with an external component 30 for connecting to a clamping mechanism. The clamping mechanism 30 for clamping a mobile phone can be mounted on the external component 30. The external component 30 can be, for example, a universal ball. When the angle between the first arm 8 and the second arm 20 is °, the connecting member is on the same side as the clamping plate 1, and the end of the second arm 20 where the external component 30 is located is tilted toward the side opposite to the side where the external component 30 is located, so that the clamping mechanism is at a suitable clamping angle.

[0057] The present invention also discloses a bracket comprising a clamping mechanism and the bracket base described above, wherein the clamping mechanism is connected to the bracket base. Specifically, the first support arm 8 of the bracket base is connected to the clamping mechanism via the second support arm 20 described above. The second support arm 20 is provided with an external connection 30, and the clamping mechanism is mounted on the external connection 30. Since this bracket includes the bracket base described above, it also has the same structure and technical effects as the bracket base, and will not be further described here.

[0058] It should be understood that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Those skilled in the art may modify the technical solutions described in the above embodiments, or make equivalent replacements for some of the technical features therein; and all these modifications and replacements should fall within the scope of protection of the claims attached to the present invention.

Claims

1. A bracket seat, characterized in that: The cam is secured to the inner wall of the cam and is adapted to engage the engagement of the locking cam with the locking cam, with the locking cam being secured to the locking cam and with the locking cam being engageable with the locking cam. In which, when the clamping knob is rotated forward, the first push wall pushes against the first pushed side wall, and the inner sleeve assembly drives the screw to extend in the clamping space through the thread, driving the clamping plate to press on the clamped object, and when the elastic arm is overloaded in the forward rotation direction, the first push wall and the first pushed side wall slide relative to each other, and the elastic arm slides into the next push groove; when the clamping knob is rotated backward, the second push wall pushes against the second pushed side wall, and the inner sleeve assembly drives the screw to contract in the clamping space through the thread, driving the clamping plate to release the clamped object.

2. The bracket seat according to claim 1, characterized in that: The inner sleeve assembly includes an inner sleeve and a nut; the inner sleeve can be rotatably mounted on the screw, and the elastic arm is arranged on the end of the inner sleeve away from the clamping plate; the nut is limitedly installed in the inner sleeve so that the inner sleeve can drive the nut to rotate synchronously; the nut is threadedly connected to the screw; the tightening knob is installed on the end of the inner sleeve away from the clamping plate.

3. The bracket seat according to claim 2, characterized in that: No external thread is provided on the peripheral wall of the end where the screw is connected to the clamping plate; an insertion cavity is axially opened in the inner sleeve, and an elastic member is provided at the end of the insertion cavity away from the clamping plate, and the elastic member abuts against the end of the screw away from the clamping plate.

4. The bracket seat according to claim 3, characterized in that: An installation cavity communicating with the inserting cavity is defined in one end of the inner sleeve close to the clamping plate, and the nut is limitedly installed in the installation cavity.

5. The bracket seat according to claim 3, characterized in that: The inner wall of the insertion cavity is provided with a plurality of tight-fitting protrusions extending in the axial direction; the tight-fitting protrusions are provided with a tightening cavity; the bracket seat also includes a decorative cover, which is provided on the tightening knob, and the inner side surface of the decorative cover is provided with a plurality of tightening columns corresponding to the tight-fitting protrusions, and the tightening columns are respectively inserted into the tightening cavity.

6. The bracket seat according to claim 5, characterized in that: The inner side surface of the decorative cover is provided with a tight-fitting edge, which is located in the area surrounded by the multiple tightening columns. The tight-fitting edge is provided with tight-fitting grooves corresponding to the multiple tightening columns, and the tight-fitting grooves are adapted to cooperate with the tight-fitting protrusions.

7. The bracket seat according to claim 6, characterized in that: A plurality of limiting protrusions are provided in the tight-fitting surrounding edge; a mounting groove is defined between the limiting protrusions, and one end of the elastic member is mounted in the mounting groove.

8. The bracket seat according to any one of claims 1 to 7, characterized in that: The first rotary push wall is an inclined wall that is away from one end of the second rotary push wall and is inclined toward the center of the sleeve opening; the first pushed side wall is adapted to be matched with the first rotary push wall; the second rotary push wall is arranged toward the first rotary push wall, and the second pushed side wall is adapted to be matched with the second rotary push wall.

9. The bracket seat according to claim 8, characterized in that: A tangent circle is defined with the center of the sleeve opening as the center and a line between the end of the first rotary push wall away from the second rotary push wall and the center of the sleeve opening as the radius, the tangent of the end of the first rotary push wall away from the second rotary push wall at the end of the first rotary push wall away from the second rotary push wall on the tangent circle is a first tangent, and the angle between the first tangent and the first rotary push wall is 10° to 45°; and / or the angle between the first rotary push wall and the second rotary push wall is 52° to 62°.

10. A bracket, characterized in that: It comprises a clamping mechanism and the bracket seat according to any one of claims 1 to 9, wherein the clamping mechanism is connected to the bracket seat.

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