Support seat and support

Abstract

The invention relates to the technical field of 3C accessories, in particular to a support base 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 present invention relates to the technical field of 3C accessories, in particular to a bracket seat and a bracket. Background Art

[0002] The mobile phone car holder is a commonly used mobile phone fixing holder for holding the mobile phone while driving a car. A display screen is currently installed on the center console of the car. In order to facilitate the installation of the car holder, a mobile phone car holder that can be clamped on a corner or edge of the display screen has appeared on the market.

[0003] The vehicle-mounted bracket pushes the pressing plate to press against a corner or edge of the display screen by turning the knob, and the pressing plate and the clamping plate arranged opposite to the vehicle-mounted bracket clamp together. However, since the pressing plate is pressed against the display screen by turning the knob to achieve clamping, if the knob is turned excessively, the pressing plate is likely to damage the display screen. Summary of the invention

[0004] The embodiment of the present invention 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 invention discloses a bracket seat, comprising a clamping plate, a clamping plate, a screw, an inner sleeve assembly and a clamping knob; the clamping plate has at least one clamping claw, and the clamping claw forms a clamping space; the clamping plate is located in the clamping space, one end of the screw is connected to the clamping plate, and the other end is provided with a clamping plate from one side of the clamping space; the inner sleeve assembly can be rotatably sleeved on the screw and is threadedly connected to the screw; a sleeve opening is provided on the clamping knob, and the clamping 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, and the rotary push grooves include a first rotary push wall and a second rotary push wall, and the inner sleeve assembly includes an elastic arm, which 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 against 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 be pressed 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 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 clamp; 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 clamp.

[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 communicated with the insertion cavity is provided in one end of the inner sleeve close to the clamping plate, and the nut is limitedly 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 cavity.

[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 cooperate with the tight-fitting convex columns.

[0012] Optionally, a plurality of limiting convex edges are arranged in the tight-fitting peripheral edge; a mounting groove is limited between the limiting convex edges, and one end of the elastic member is installed in the mounting groove.

[0013] Optionally, the first rotary push wall is an inclined wall inclined toward the center of the sleeve opening away from one end of the second rotary push wall; the first pushed side wall is adapted to 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 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 tangent circle 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 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 invention 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 beneficial effect of the bracket seat provided by the embodiment of the present invention is that: when the clamping knob of the present invention is rotated forward, the clamping knob pushes the first pushed side wall through the first rotary push wall to drive the inner sleeve assembly to rotate. Since the inner sleeve assembly is threadedly connected to the screw rod, the inner sleeve assembly thread drives the screw rod to extend in the clamping space, driving the clamping plate to be pressed on the clamping object, such as the display screen of the car center console. The clamping plate and the clamping claws of the clamping plate cooperate to achieve the clamping of the bracket seat. When the clamping plate is pressed on the display screen with a certain clamping force, the clamping knob continues to be rotated. Since the clamping plate has been pressed on the display screen and it is difficult to press further, 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 rotary push wall and the first pushed side wall slide relative to each other, and the elastic arm slides into the next rotary 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-spin groove and continuously slides from the current push-spin groove to the next push-spin 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 is a schematic diagram of a bracket seat according to an embodiment of the present invention;

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

[0020] Figure 3 is a cross-sectional view of a bracket seat according to an embodiment of the present invention;

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

[0022] Figure 5 is an exploded schematic diagram of a decorative cover and a pressing knob according to an embodiment of the present invention;

[0023] Figure 6 is another schematic diagram of a 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 is a schematic diagram of a kit in an embodiment of the present invention;

[0026] Fig. 9 is a schematic diagram of a pressing knob according to an embodiment of the present invention;

[0027] Fig.10is another schematic diagram of a pressing knob according to an embodiment of the present invention;

[0028] Fig.11 is a schematic diagram of an elastic arm sliding out of a rotary push groove according to an embodiment of the present invention;

[0029] Fig.12 is a schematic diagram of a decorative cover according to an embodiment of the present invention;

[0030] Fig.13 is an exploded schematic diagram of a bracket seat according to an embodiment of the present invention;

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

[0032] Fig.15 yes Fig.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. Installation cavity; 413. Limiting edge; 414. Elastic arm; 414a. Free end; 414a1. First thrust side wall; 414a2. Second thrust side wall; 42. Nut; 5. Outer sleeve assembly; 51. Extension; 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 convex edge; 20, second arm; 30, external part; 40, decorative cover; 401, tightening column; 402, tight fitting surrounding edge; 402a, tight fitting groove; 403, limiting convex edge; 404, installation groove. DETAILED DESCRIPTION

[0035] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. Now, in conjunction with the accompanying drawings, the preferred embodiments of the present invention are described in detail.

[0036] The embodiment of the present invention provides a bracket seat. Figures 1 to 9 , Fig.11As shown, the bracket seat includes a clamping plate 1, a clamping plate 2, a screw rod 3, an inner sleeve assembly 4 and a clamping knob 6; the clamping plate 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 rod 3 is connected to the clamping plate 2, and the other end of the clamping plate 1 is passed through one side of the clamping space 12; the inner sleeve assembly 4 can be rotatably mounted on the screw rod 3 and is threadedly connected to the screw rod 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 rotating push grooves 62 which surround the sleeve opening, and the rotating push grooves 62 include a first rotating push wall 621 and a second rotating push wall 622. The inner sleeve assembly 4 includes an elastic arm 414, and the elastic arm 414 is located in the sleeve opening 61. The free end 414a of the elastic arm 414 is embedded in the rotating 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, and the first pushed side wall 414a1 abuts against the first rotating push wall 621, and the second pushed side wall 414a2 abuts against the second rotating push wall 622.

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

[0039] The present invention rotates the clamping knob 6 forward, and the clamping knob 6 pushes the first pushed side wall 414a1 through the first rotary push wall 621 to drive 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 thread drives the screw rod 3 to extend in the clamping space 12, driving the clamping plate 2 to be pressed on the clamping object, such as the display screen of the central console of the car, and the clamping plate 2 cooperates with the clamping claw 11 of the clamping plate 1 to achieve the clamping of the bracket seat. When the clamping plate 2 is pressed on the display screen with a certain clamping force, the clamping knob 6 is continued to be rotated. Since the clamping plate 2 has been pressed on the display screen and it is difficult to press further, 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 rotary push wall 621 slides relative to the first pushed side wall 414a1, and the elastic arm 414 slides into the next rotary 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-spin groove 62 and continuously slides from the current push-spin groove 62 to the next push-spin groove 62. The clamping plate 2 will not be further driven to be pressed 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 positive rotation of the clamping knob 6 is the counterclockwise rotation of the clamping knob 6, that is, the positive rotation direction is the counterclockwise direction, and the reverse rotation is the clockwise direction. In the scheme of the present invention, the positive rotation is the counterclockwise rotation and the reverse rotation is the clockwise rotation. Of course, in another embodiment, the positive rotation of the clamping knob 6 can also be the clockwise rotation of the clamping knob 6, that is, the positive rotation direction is the clockwise direction, and the reverse rotation is the counterclockwise direction.

[0041] Furthermore, combined with Figures 7 to 11 As shown, the first rotary push wall 621 can be set to have an inclination direction and an inclination degree to achieve that the first rotary push wall 621 can not only push the first pushed side wall 414a1, but also slide relative to the first pushed side wall 414a1 when overloaded, so that the elastic arm 414 can slide into the next rotary push groove 62. The inclination degree of the first rotary push wall 621 determines the magnitude of the force that can cause "slippage" between the first rotary push wall 621 and the first pushed side wall 414a1 due to overload. The first pushed side wall 414a1 of the elastic arm 414 can be adaptively set corresponding to the first rotary push wall 621. The second rotary push wall 622 can be set as long as it can push against the second pushed side to push the inner sleeve assembly 4 to rotate, and the second pushed side wall 414a2 of the elastic arm 414 can be adaptively set corresponding to the second rotary push wall 622.

[0042] Specifically, Fig. 9 and Fig.10As shown, the first rotary push wall 621 is an inclined wall that is away from one end of the second rotary push wall 622 and is inclined toward the center of the sleeve opening 61; the first pushed side wall 414a1 is matched with the first rotary push wall 621; the second rotary push wall 622 is arranged toward the first rotary push wall 621, and the second pushed side wall 414a2 is matched with the second rotary push wall 622. The first rotary push wall 621 is tilted away from one end of the second rotary push wall 622 toward the center of the sleeve opening 61, so that the first rotary push wall 621 can not only push the first pushed side wall 414a1, but also slide relative to the first pushed side wall 414a1 when overloaded, so that the elastic arm 414 can slide into the next rotary push groove 62.

[0043] More specifically, if Fig.10 As shown, a tangent circle is defined with the center of the sleeve opening 61 as the center and the line between 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, and the tangent of 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, and the angle α between the first tangent and the first rotary push wall 621 is 10° to 45°. Preferably, the angle α between the first tangent 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] Furthermore, combined with Figures 13 to 15 As shown, the bracket seat also includes an outer sleeve 5, a locking knob 7 and a first arm 8; the outer sleeve 5 is sleeved on the inner sleeve component 4 on the side of the clamping plate 1 away from the clamping space 12, and is connected to the clamping plate 1; the locking knob 7 is sleeved on the outer sleeve 5 and is threadedly connected to the outer sleeve 5; the first arm 8 is sleeved on the outer sleeve and is located on the side of the locking knob 7 close to the clamping plate 1. When the clamping knob 6 is rotated, the clamping knob 6 drives the inner sleeve component 4 to rotate, and the inner sleeve component 4 drives the screw 3 to extend and retract relative to the clamping plate 1 through the thread, thereby driving the clamping plate 2 to move, and the clamping plate 2 cooperates with the clamping claw 11 to achieve clamping at the clamping position, such as a corner of the display screen of the car center console. 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 rotating the locking knob 7, thereby achieving 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, and in this case, the bracket seat can be clamped on a corner of the car center console display screen, or the clamping claws 11 can be provided on one side of the clamping plate 1, and in this case, the bracket seat can be clamped on the edge of the car center console display screen. Of course, the bracket seat of the present invention can also be applied to other applicable clamping positions, and the scenario of being applied to the car center console display screen exemplified here is only one example.

[0046] The first arm 8 can be connected to the clamping mechanism through the second arm 20 described below, and the clamping mechanism clamps electronic devices such as mobile phones. The outer sleeve 5 can be installed on the clamping plate 1 by screws, and an external thread is set on the outer sleeve 5, and an internal thread is set on the locking knob 7, so as to achieve a threaded connection between the outer sleeve 5 and the locking knob 7. When the locking knob 7 is rotated, the first arm 8 is pressed when the locking knob 7 moves toward the clamping plate 1, so as to achieve the locking of the first arm 8; when the locking knob 7 moves away from the clamping plate 1, the first arm 8 is loosened, so as to achieve the adjustment of the use angle of the first arm 8. The pressing sheet and the screw rod 3 can be fixed by screw connection.

[0047] Specifically, the inner sleeve assembly 4 includes an inner sleeve 41 and a nut 42; the inner sleeve 41 is rotatably sleeved on the screw rod 3, and the elastic arm 414 is arranged on the end of the inner sleeve 41 away from the clamping plate 1; the nut 42 is limitedly installed in the inner sleeve 41 so that the inner sleeve 41 can drive the nut 42 to rotate synchronously; the nut 42 is screwed with the screw rod 3; the outer sleeve 5 is sleeved 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 rotates, it drives the inner sleeve 41 to rotate, and the inner sleeve 41 then drives the nut 42 to rotate, and the nut 42 drives the screw rod 3 to expand and contract on the clamping plate 1, thereby driving the clamping plate 2 to expand and contract in the clamping space 12, so as to achieve 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, and a limiting groove 52 is provided in the outer sleeve 5 corresponding to the limiting edge 413, and the limiting edge 413 is embedded in the limiting groove 52, so as to limit the inner sleeve 41, and the inner sleeve 41 can rotate in the outer sleeve 5. The nut 42 cooperates with the screw 3, and the structure is stable, has a long service life, and is not easy to be damaged.

[0048] Specifically, no external thread is provided on the peripheral wall of the end where the screw rod 3 is connected to the clamping plate 2; an insertion cavity 411 is provided in the axial direction in the inner sleeve 41, and an elastic member 9 is provided at the end of the insertion cavity 411 away from the clamping plate 1, and the elastic member 9 abuts against the end of the screw rod 3 away from the clamping plate 1. No external thread is provided on the peripheral wall of the end where the screw rod 3 is connected to the clamping plate 2, so that after the clamping plate 2 is retracted to the limit position, the part of the screw rod 3 without the external thread will be disconnected from the threaded connection with the nut 42. At this time, even if the operator continues to rotate the clamping knob 6 clockwise, the screw rod 3 is in an "idling" state, so that the problem of damage caused by excessive force on the clamping knob 6 can be avoided. Furthermore, when it is necessary to drive the clamping plate 2 to clamp and rotate the clamping knob 6 counterclockwise, the elastic member 9 can push the screw rod 3 through the elastic force, so that the starting end of the thread of the screw rod 3 can easily engage with the nut 42.

[0049] Furthermore, if Figure 8 and Fig.12 As shown, the inner wall of the insertion cavity 411 is provided with a plurality of axially extending tight-fitting protrusions 411a; and a tight-fitting cavity 411a1 is provided on the tight-fitting protrusion 411a. The bracket seat also includes a decorative cover 40, which is covered on the clamping knob 6, and the inner side surface of the decorative cover 40 is provided with a plurality of tight-fitting columns 401 corresponding to the tight-fitting protrusion 411a, and the tight-fitting columns 401 are respectively inserted into the tight-fitting cavity 411a1. Through the cooperation of the tight-fitting columns 401 and the tight-fitting cavity 411a1, the decorative cover 40 can be firmly and conveniently installed on the clamping knob 6. The decorative cover 40 can cover the set opening 61, the rotary push groove 62 and the elastic arm 414, etc., making the bracket seat more beautiful. In addition, the tight-fitting protrusion 411a can also narrow the space of the tight-fitting cavity 411a1, playing the role of limiting the 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 plug-in columns 401. The tight fitting edge 402 is provided with tight fitting grooves 402a corresponding to the multiple plug-in columns 401, and the tight fitting grooves 402a are adapted to fit with the tight fitting convex columns 411a. The tight fitting grooves 402a can further improve the matching effect between the decorative cover 40 and the tight fitting convex columns 411a.

[0051] The tight fitting edge 402 is provided with a plurality of limiting protrusions 403, and a mounting groove 404 is limited between the limiting protrusions 403, and one end of the elastic member 9 is installed in the mounting groove 404. By providing the limiting protrusions 403 in the tight fitting edge 402 to form the mounting groove 404 for installing the elastic member 9, the structure is simple and the space is fully utilized. Specifically, the plurality of limiting protrusions 403 are connected to the tight fitting edge 402 to improve the structural strength. The elastic member 9 can be a spring.

[0052] Furthermore, an installation cavity 412 communicating with the insertion cavity 411 is provided in one end of the inner sleeve 41 close to the clamping plate 1, and the nut 42 is limitedly installed in the installation cavity 412. The side of the nut 42 has a plurality of edges, and the shape of the installation cavity 412 can be adapted to the shape of the nut 42, so that after the nut 42 is installed in the installation cavity 412, the installation cavity 412 can drive the nut 42 to rotate. The installation cavity 412 is provided in one end of the inner sleeve 41 close to the clamping plate 1 to facilitate the assembly of the nut 42.

[0053] The outer sleeve 5 is provided with an extension 51 on the circumference of one end of the outer sleeve 5 close to the clamping plate 1, and the extension 51 is connected and fixed to the clamping plate 1 by screws. The bracket seat includes a positioning piece 10, which is sleeved on the outer sleeve 5 and located between the first arm 8 and the extension 51; the positioning piece 10 is limitedly connected with the first arm 8 so that the positioning piece 10 can rotate around the outer sleeve 5 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, and a plurality of positioning grooves 511 surrounding the outer sleeve 51 are provided, and the plurality of positioning grooves 511 are all located on the rotation track of the spherical protrusion 101. When the first arm 8 rotates, the positioning piece 10 is driven to rotate, and during the rotation process, the spherical protrusion 101 is embedded in the positioning groove 511 or separated from the positioning groove 511. The cooperation between the spherical protrusion 101 and the positioning groove 511 can play the role of positioning the first arm 8, and at the same time improve the hand feeling 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 spaced evenly apart, 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, a locking convex edge 102 is provided on the positioning piece 10, and a first opening 81 is provided on the first support arm 8, and the locking convex edge 102 is locked in the first opening 81. Through the locking of the locking convex edge 102 and the first opening 81, the first support arm 8 can drive the positioning piece 10 to rotate together. The first opening 81 is extended along the length direction of the first support arm 8, so that when the locking knob 7 releases the first support arm 8, the first support arm 8 can adjust the position of the first support arm 8 within the length range of the first opening 81, thereby realizing the 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 service 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 through a damping shaft. The other end of the second arm 20 is provided with an external component 30 for connecting the clamping mechanism. The clamping mechanism 30 for clamping the mobile phone can be installed 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 opposite side of 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, including a clamping mechanism and the bracket seat, wherein the clamping mechanism is connected to the bracket seat. Specifically, the first arm 8 of the bracket seat is connected to the clamping mechanism through the second arm 20. An external component 30 is provided on the second arm 20, and the clamping mechanism is installed on the external component 30. Since the bracket has the bracket seat, it also has the same structure and technical effect as the bracket seat, which will not be described in detail.

[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. For those skilled in the art, the technical solutions described in the above embodiments can be modified, or some of the technical features therein can be replaced by equivalents; 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 invention comprises a clamping plate, a pressing plate, a screw, an inner sleeve assembly and a pressing knob; the clamping plate has at least one clamping claw, and 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 passed through the clamping plate 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 at 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, and the rotary push grooves include a first rotary push wall and a second rotary push wall, and the inner sleeve assembly includes an elastic arm, which 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; Among them, 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 rod to extend in the clamping space through threads, driving the clamping plate to be pressed 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 rod to contract in the clamping space through threads, 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 clamp; 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 clamp.

3. The bracket seat according to claim 2, characterized in that: No external thread is provided on the peripheral wall of the end of the screw rod 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 rod away from the clamping plate.

4. The bracket seat according to claim 3, characterized in that: An installation cavity communicated with the insert cavity is provided 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 bosses extending axially; the tight-fitting bosses are provided with a tightening cavity; the bracket seat also includes a decorative cover, the decorative cover is arranged 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 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, the tight-fitting edge is located in the area surrounded by the plurality of the tightening posts, the tight-fitting edge is provided with tight-fitting grooves corresponding to the plurality of the tightening posts, and the tight-fitting grooves are adapted to cooperate with the tight-fitting convex posts.

7. The bracket seat according to claim 6, characterized in that: A plurality of limiting convex edges are arranged in the tight-fitting surrounding edge; a mounting groove is limited between the limiting convex edges, 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 inclined toward the center of the sleeve opening; the first pushed side wall is adapted to 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 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 one end of the first rotary push wall away from the second rotary push wall and the center of the sleeve opening as the radius, a tangent line 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 line, an angle between the first tangent line and the first rotary push wall is 10° to 45°; and / or an 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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