CN115031092A - Screen rotation quick-release structure - Google Patents

Abstract

The invention relates to a screen rotation quick-release structure, wherein one end of a connecting piece is connected with a support frame; one end of a positioning pin protrudes out of one end of the adapter, and the positioning pin is positioned in the adapter in a reciprocating mode; the pivot module comprises a first pivot and a second pivot, and the adjacent ends of the first pivot and the second pivot are provided with an end which is spaced to accommodate the positioning pin; the first buckling ring is contained and limited in the clamping space of the top seat, the inner annular surface of the first buckling ring is provided with a first clamping groove and a second clamping groove, the first clamping groove and the second clamping groove respectively correspond to the far ends of the first pivot and the second pivot, and therefore when the first buckling ring is pushed and pressed to rotate, the other end of the positioning pin is pressed and limited in the positioning groove above one side of the support frame, the rotation safety of a display is ensured, and the display is convenient to disassemble and assemble with the second buckling ring.

Description

Rotary quick-dismantling structure for screen

Technical Field

The present invention relates to a screen rotation quick-release structure, and more particularly, to a quick-release structure capable of quickly assembling and disassembling a stand and a screen and safely rotating the screen.

Background

The integrated computer has a main frame built in the display and combined to the top of a foot rest via the back locking structure of the display, so that the foot rest can support the display and stand on desktop or plane. The locking structure is not convenient to assemble and disassemble, and takes much time. Therefore, as shown in the "display quick release structure" of chinese patent application No. 202010626128.4, a feasible solution is provided, in which the foot rest includes a top seat connected to one side of the top end of a supporting frame, the top seat has a front cover body and a rear cover body which are oppositely covered, a clamping space is provided between the front cover body and the rear cover body, the outer periphery of the front cover body has a plurality of notches, and one side of the rear cover body has a first limiting hole; the first buckling ring is limited in the clamping space in a mode of resetting after rotating, and the pushing part of the first buckling ring penetrates through the first limiting hole to push and press the first buckling ring to rotate; and a second buckling ring is connected to the rear side surface of the display, and the second buckling ring is provided with a plurality of second buckling parts so as to correspondingly buckle a plurality of first buckling parts of the first buckling ring after being respectively inserted into a plurality of notches of the front cover body, thereby conveniently and quickly assembling or disassembling the foot rest and the screen.

As shown in the chinese patent publication CN101881365, a "support frame for interlocking the rotation and height adjustment of a screen" is provided, which is applied to a screen that can be rotated horizontally or vertically, and mainly controls whether the screen can be rotated vertically or not by a specific height of the screen, and controls whether the height of the screen can be adjusted or not by the rotation of the screen, so that the rotation and height adjustment of the screen can be interlocked. Therefore, when the screen is in the vertical state, the height of the screen cannot be adjusted, and when the height of the screen rises, the screen cannot be converted into the vertical state, so that the screen in the vertical state can only be kept at the lowest position.

Through the structure of the patent of 'quick-release structure for display' of the above application No. 202010626128.4, the assembly of the coupling rack and the display can be completed quickly, but the position for assembling and disassembling the display is not limited to a specific height of the supporting frame, and the display can be disassembled when the display rotates, so that the display, which is changed from horizontal to vertical, can be easily bumped on the base or the desktop to cause damage when the display rotates, and after the display is disassembled, the coupling rack can not be confirmed to be in the horizontal or vertical position, which is not favorable for the reassembly; in addition, in the rotation process of the display, if the user mistakenly touches the pushing part of the first buckling ring, the display may be separated from the combination frame and fall off. The structure of CN101881365 can limit the rotation of the screen at a specific height to maintain the overall stability to avoid falling, but the structural disadvantage of the fast-detachable display structure can not be completely improved. Therefore, in order to provide a structure different from the prior art and improve the above-mentioned disadvantages, the inventor has made many years of experience and continuous research and development improvements, and has come to the present invention.

Disclosure of Invention

In order to solve the above-mentioned deficiencies in the prior art, the present invention provides a rotary and quick-release structure for a screen, which can prevent a display from being damaged during rotation; and after the display is disassembled, the exact position of the combining frame can not be confirmed, which is not beneficial to the reassembling, and the display can be rotated or disassembled at the same time when the display is horizontally positioned above one side of the supporting frame, so as to ensure the use safety and convenient assembling.

The present invention provides a screen rotation quick release structure, which can improve the problem that the display and the combining frame are separated and fall off due to the user mistakenly touching the pushing part during the rotation of the display, and can be locked during the rotation of the display to prevent the user from mistakenly touching to ensure the safety of use.

To achieve the above-mentioned purpose, the present invention provides a rotary quick-release structure for a screen, which comprises a foot stand, a top seat and a first fastening ring. The foot rest comprises a support frame and a switching component, and a positioning groove is formed above one side of the support frame; the switching assembly comprises a switching piece and a rotating shaft module, wherein one end of the switching piece is connected with the support frame in a mode of moving up and down; one end of a positioning pin protrudes out of one end of the adapter, and the positioning pin is coaxially positioned in the adapter in a reciprocating manner, so that the other end of the positioning pin is pressed against and limited in the positioning groove; one side of the rotating shaft module is connected with one end of the adapter piece, the rotating shaft module comprises a first pivot and a second pivot which are on the same horizontal straight line, and the near ends of the first pivot and the second pivot, which are connected with each other, are provided with a space for accommodating one end of the positioning pin; the top seat comprises a clamping space for accommodating the limiting rotating shaft module; one side of the top seat is provided with a first limiting hole which is communicated with the clamping space; the first buckling ring can be accommodated and limited in the clamping space in a reset mode after rotating, one side of the first buckling ring is provided with a pushing part, and the pushing part penetrates through the first limiting hole and protrudes out of the outer side of the top seat so as to push the first buckling ring to rotate; the inner ring surface of the first buckling ring is provided with a first clamping groove and a second clamping groove, and the first clamping groove and the second clamping groove respectively correspond to the far ends of the first pivot and the second pivot.

When the clamping device is implemented, the top seat further comprises a front cover body and a rear cover body which are oppositely covered with the rear cover body, the clamping space is formed between the front cover body and the rear cover body, a first limiting hole is formed in one side of the rear cover body, a plurality of first notches are formed in the outer periphery of the front cover body, and the first notches are communicated with the clamping space.

When the screen rotation quick-release structure is implemented, the screen rotation quick-release structure further comprises a second buckling ring, the second buckling ring is connected to the rear side face of a display, and the second buckling ring is provided with a plurality of second buckling parts which are respectively inserted into the plurality of first notches of the front cover body and respectively correspond to the plurality of first buckling parts on one side face of the first buckling ring.

When the device is implemented, one side of the support frame is provided with a guide groove, and a positioning groove is arranged above the guide groove; one end of the adapter piece of the adapter assembly penetrates through the guide groove to be connected with the support frame in a vertically movable mode.

When the device is implemented, the adapter comprises a sleeve, a positioning column and a lifting plate, the sleeve is sleeved with the positioning column, one end of the positioning column is connected with the rotating shaft module, the other end of the positioning column is provided with a clamping groove for clamping the lifting plate, the clamping groove is communicated with a through hole, and one end of the positioning column protrudes outwards; one end of the lifting plate penetrates through the guide groove, a horizontal limiting groove is formed in the plate surface of the other end of the lifting plate, the positioning pin capable of moving back and forth is positioned, and the other end of the positioning pin is abutted against the guide groove or limited in the positioning groove.

When the positioning device is implemented, one end of the positioning pin penetrates through a spring, so that the positioning pin can move back and forth; the horizontal limiting groove at the other end of the lifting plate is T-shaped, and the other end of the positioning pin is provided with a head part for positioning in the horizontal limiting groove.

When the adapter assembly is implemented, the adapter assembly further comprises a stop ring, and the outer periphery of the stop ring is provided with a first stop part and a second stop part; the top seat also comprises a linkage piece which is clamped and connected between the front cover body and the rear cover body, and the inner periphery of the linkage piece is provided with a pressing part for respectively pressing the first stopping part or the second stopping part after the linkage piece rotates synchronously with the top seat and the display, so that the display is positioned on the vertical longitudinal position or the horizontal transverse position.

When the rotating shaft module is implemented, the rotating shaft module further comprises a connecting assembly, the connecting assembly comprises a fixed plate group and a limiting plate group, the fixed plate group is coaxially pivoted with the first pivot and the second pivot, the fixed plate group and the limiting plate group are connected with the stop ring in a clamping mode, and the linkage piece is rotatably clamped between the fixed plate group and the limiting plate group.

When in implementation, the top seat also comprises a linkage piece, the outer periphery of the linkage piece is provided with a positioning component, and the positioning component is provided with a positioning piece capable of radially reciprocating; the rotating shaft module also comprises a connecting component, the connecting component comprises a fixed plate group and a limiting plate group, the fixed plate group is coaxially pivoted with the first pivot and the second pivot, and the linkage component is rotatably clamped between the fixed plate group and the limiting plate group; the limiting plate set comprises a limiting plate, and the outer periphery of the limiting plate is provided with a first limiting part and a second limiting part for clamping the positioning piece after the linkage piece rotates.

When the positioning device is implemented, the outer periphery of the linkage piece is provided with a second notch, the positioning assembly further comprises a first elastic piece and a pair of clamping pieces, and one end of the first elastic piece is pressed against the positioning piece; the pair of clamping sheets are positioned in the second gap, two ends of the pair of clamping sheets are respectively connected with the linkage piece, and a positioning space is arranged between the pair of clamping sheets for positioning the first elastic piece and the positioning piece so as to enable the positioning piece to move in a reciprocating manner in the radial direction.

When in use, the positioning piece is also provided with a guide rod which penetrates out of one side of the pair of clamping pieces; one side surface of the first buckling ring is provided with a containing groove for containing and limiting a second elastic piece and a pressing piece, one end of the pressing piece presses against the second elastic piece, and the other end of the pressing piece presses against the guide rod for limiting the movement of the guide rod.

When the first buckling ring is used, the first buckling ring comprises an annular buckling plate and a plurality of third elastic pieces, a plurality of third limiting parts which are arranged in an annular array form are arranged on the annular buckling plate and used for limiting one ends of the plurality of third elastic pieces respectively, and a plurality of fourth limiting parts which are arranged in an annular array form are arranged on one side surface of the front cover body and used for limiting the other ends of the plurality of third elastic pieces respectively.

When the annular buckling plate is used, a plurality of first arc-shaped grooves which are arranged in an annular array form are formed in one side surface of the annular buckling plate, a third limiting portion is formed at one end of each first arc-shaped groove, a plurality of second arc-shaped grooves which are arranged in an annular array form are formed in one side surface of the front cover body, and a fourth limiting portion is formed at one end of each second arc-shaped groove.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

FIG. 1: the preferred embodiment of the invention is a three-dimensional appearance schematic diagram when combined with a display and a base;

FIG. 2: the perspective appearance diagram of the preferred embodiment of the invention when separated from the display;

FIG. 3: the top seat and the foot rest are in exploded view;

FIG. 4: the first buckling ring of the invention has a schematic three-dimensional appearance;

FIG. 5: a partial exploded view of the preferred embodiment of the present invention;

FIG. 6: the invention discloses an exploded view of elements of a positioning component and a linkage piece;

FIG. 7: the invention relates to an exploded component view of an adapter assembly and a support frame;

FIG. 8: a back side view of the display of the present invention in a horizontal landscape position;

FIG. 9: the display of the invention is in the use state schematic diagram of the horizontal position;

FIG. 10: the invention is a schematic cross-sectional top view;

FIG. 11: the use state schematic diagram of the push part of the preferred embodiment of the invention when the push part is shifted to the bottom;

FIG. 12: the invention is a schematic diagram of the using state of a positioning pin when the positioning pin is pressed against a positioning groove;

FIG. 13 is a schematic view of: a rear side view of the display of the present invention when rotated;

FIG. 14 is a schematic view of: the display of the invention is a schematic diagram of the using state when rotating;

FIG. 15 is a schematic view of: a back side view of the display of the present invention in a vertical portrait position;

FIG. 16: the display of the invention is in the schematic view of the using state when vertical and longitudinal position;

FIG. 17: the display of the invention is schematically used in a vertical longitudinal position.

Description of the reference numerals

1 screen rotation quick-release structure

2 foot stool

21 support frame

211 guide groove

212 locating slot

22 adapter assembly

23 adaptor

231 sleeve

232 positioning column

2321 clamping groove

2322 perforating

233 lifting board

2331 horizontal limit groove

234 positioning pin

2341 head

235 spring

24-shaft module

241 first pivot

242 second pivot

243 space

25 stop ring

251 arc-shaped groove

252 first stop

253 second stop

26 connecting assembly

261 fixed plate group

262 spacing plate group

263 position limiting plate

264 first limit part

265 second limiting part

3 top seat

31 front cover

311 first gap

312 second arc-shaped groove

313 fourth position-limiting part

32 rear cover

321 first limit hole

33 linkage piece

331 pressing part

332 second limiting hole

333 second notch

34 positioning assembly

341, 341' holding piece

342 positioning space

343 first elastic member

344 positioning piece

345 guide bar

35 sandwiching space

4 first fastening ring

41 annular buckling plate

411 first fastening part

412 first arc-shaped groove

413 third position-limiting part

414 pushing part

415 accommodation groove

416 first card slot

417 second card slot

418 second elastic member

419 press piece

42 third elastic member

5 second clasp

51 second fastening part

9 base

91 display

911 circular groove.

Detailed Description

The technical solution in the embodiments of the present invention is clearly and completely described below with reference to the drawings in the embodiments of the present invention. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described and will be readily apparent to those of ordinary skill in the art without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.

Referring to fig. 1 and 2, a foot rest 2 of the screen rotation and quick release structure 1 of the present invention includes a support frame 21 and a switching assembly 22, one end of the switching assembly 22 is connected to one side of the support frame 21 in a manner of moving up and down, and the bottom end of the support frame 21 is mounted on a base 9, and in implementation, the bottom end of the support frame 21 can be inserted downward into a telescopic bracket or an adjustable support arm, or directly fixed on a desktop or equipment through a clamp; a first snap ring 4 is received and retained in the clamping space of a top base 3 in a manner of being reset after being rotated, and a second snap ring 5 is fixed on the rear side of a display 91 for connecting the first snap ring 4.

As shown in fig. 2 to 10, which are preferred embodiments of the screen rotation and quick release structure 1 of the present invention, mainly include a stand 2, a top base 3, a first fastening ring 4 and a second fastening ring 5, wherein the stand 2 includes a supporting frame 21 and a fastening assembly 22, the supporting frame 21 is an upright cylinder, one side of the cylinder has a strip-shaped guide slot 211, a positioning slot 212 is formed on the upper half of the guide slot 211, and the diameter of the positioning slot 212 is greater than the width of the guide slot 211; the adapter assembly 22 includes an adapter 23, a pivot module 24, and a stop ring 25.

The adaptor 23 includes a sleeve 231, a positioning post 232 and a lifting plate 233, the sleeve 231 is sleeved with the positioning post 232, one end of the positioning post 232 is locked with the rotating shaft module 24, the other end of the positioning post 232 is provided with a flat clamping groove 2321 which coaxially extends with the positioning post 232, and a circular through hole 2322 is communicated with the clamping groove 2321 and penetrates through two ends of the positioning post 232; the lifting plate 233 is a vertical plate, and one end of the lifting plate 233 passes through the guide slot 211 at one side of the supporting frame 21 and is connected to a lifting adjusting mechanism inside the supporting frame 21, so that the lifting plate 233 can move up and down; the other end of the lifting plate 233 is inserted to be clamped in the clamping groove 2321 of the positioning post 232, a horizontal limiting groove 2331 in a T shape is formed in the plate surface of the other end of the lifting plate 233, a positioning pin 234 with a head 2341 is accommodated in the horizontal limiting groove 2331, and the head 2341 of the positioning pin 234 corresponds to the positioning groove 212 on one side of the support frame 21 and keeps a distance from the positioning groove 212; one end of the positioning pin 234 passes through a spring 235 and then protrudes out from one end of the positioning post 232, so that the positioning pin 234 can reciprocate back and forth.

The hinge module 24 includes a connecting assembly 26, a first pivot 241 and a second pivot 242, the connecting assembly 26 includes a fixing plate set 261 and a limiting plate set 262, the fixing plate set 261 mainly includes two symmetrical L-shaped bent plates for coaxially pivoting the first pivot 241 and the second pivot 242, so that the first pivot 241 and the second pivot 242 are on the same horizontal straight line, and a space 243 is formed between the adjacent ends of the first pivot 241 and the second pivot 242 to accommodate one end of the positioning pin 234. The rotation axis module 24 is connected to one end of the positioning column 232, and can rotate around the first pivot 241 and the second pivot 242 to drive the display 91 to tilt. The fixed plate set 261 is locked with the limiting plate set 262, and the stop ring 25 is clamped and connected between the fixed plate set 261 and the limiting plate set 262, the outer periphery of the circular plate-shaped stop ring 25 is provided with an arc-shaped groove 251, and a first stopping portion 252 and a second stopping portion 253 are respectively formed on two sides of the arc-shaped groove 251. The limiting plate set 262 includes a limiting plate 263, and the outer periphery of the annular limiting plate 263 has two grooves disposed at an angle of 90 degrees, and the two grooves are respectively used as a first limiting portion 264 and a second limiting portion 265.

The top base 3 includes a front cover 31, a rear cover 32, a linking member 33 and a positioning member 34, wherein the front cover 31 and the rear cover 32 are covered with each other, and a clamping space 35 is formed between the front cover 31 and the rear cover 32 to accommodate the limit shaft module 24. The front cover 31 is disc-shaped, the outer periphery of the front cover 31 has a plurality of first notches 311 distributed in a ring array, and the plurality of first notches 311 are communicated with the clamping space 35; a plurality of second arc-shaped grooves 312 arranged in an annular array are formed on one side surface of the front cover 31, and are used for accommodating and positioning a part of the plurality of third elastic members 42 therein, and a fourth limiting portion 313 is formed at one end of each of the plurality of second arc-shaped grooves 312, and is used for limiting one end of each of the plurality of third elastic members 42; an arc-shaped through hole is formed on one side surface of the rear cover 32, and the arc-shaped through hole is used as a first limiting hole 321, and the first limiting hole 321 is communicated with the clamping space 35.

The linkage member 33 is an annular plate, the linkage member 33 is clamped and locked between the front cover 31 and the rear cover 32, and the linkage member 33 is sleeved on the stop ring 25, so that the linkage member 33 is rotatably clamped between the fixed plate set 261 and the limiting plate set 262. The inner annular surface of the linking member 33 has a radially protruding pressing portion 331, and the pressing portion 331 is limited in the arc-shaped groove 251 on the outer periphery of the stop ring 25, so that after the linking member 33 rotates, two sides of the pressing portion 331 respectively press the first stopping portion 252 or the second stopping portion 253. In addition, the plate surface of the linking member 33 has a second limiting hole 332, and the outer periphery of the linking member 33 has an arc-shaped second notch 333.

The positioning assembly 34 includes a pair of clamping plates (341, 341 '), a first elastic member 343 and a positioning member 344, wherein the pair of clamping plates (341, 341 ') are positioned in the arc-shaped second notch 333 at the outer periphery of the linking member 33, and two ends of the pair of clamping plates (341, 341 ') are respectively connected to the linking member 33. A positioning space 342 is formed between the pair of clamping pieces (341, 341') to position a spring serving as a first elastic member 343 and a positioning member 344. The first elastic member 343 is disposed in a notch of the positioning member 344, and one end of the first elastic member 343 abuts against the positioning member 344, so that the positioning member 344 can move back and forth in a radial direction relative to the linking member 33. In addition, the positioning member 344 further has a guide rod 345 extending laterally, and the guide rod 345 passes through the slot on one side of the pair of clamping pieces (341, 341') and protrudes outwards.

The first snap ring 4 is accommodated and limited in the clamping space 35 between the front cover body 31 and the rear cover body 32, the first snap ring 4 comprises an annular snap plate 41 and a plurality of third elastic pieces 42, the outer annular surface of the annular snap plate 41 is provided with a plurality of wedge blocks which are arranged in an annular array and protrude forwards, and the wedge blocks are used as first snap parts 411; a plurality of arc-shaped guiding blocks arranged in an annular array are arranged on one side surface of the annular buckling plate 41, and are correspondingly guided into the plurality of second arc-shaped grooves 312 to form a stable guiding function, so that the plurality of first buckling parts 411 respectively reciprocate in the plurality of first notches 311 in a movable manner; in addition, the plurality of arc-shaped guiding blocks are respectively provided with a first arc-shaped groove 412 in a concave manner for accommodating and positioning another part of the plurality of third elastic members 42 therein, and a third limiting portion 413 is respectively formed at one end of the plurality of first arc-shaped grooves 412 and at a position corresponding to the plurality of arc-shaped guiding blocks for respectively limiting the other end of the plurality of third elastic members 42.

The other side surface of the annular fastening plate 41 has a pushing portion 414 and an accommodating slot 415, the pushing portion 414 sequentially passes through the second limiting hole 332 of the linking member 33 and the first limiting hole 321 of the rear cover 32 and protrudes outside the top base 3, so as to push the pushing portion 414, so that the first fastening ring 4 can be reset after rotating, and the first fastening portions 411 are respectively hidden in the first notches 311 of the front cover 31 to form protection. The annular fastening plate 41 has a first engaging groove 416 and a second engaging groove 417 on an inner annular surface thereof, and the first engaging groove 416 and the second engaging groove 417 are opposite to each other and correspond to the opposite ends of the first pivot 241 and the second pivot 242, respectively.

A compression spring and a pressing member 419 are respectively accommodated and limited in the accommodating groove 415 on one side surface of the annular fastening plate 41, and the compression spring serves as a second elastic member 418. One end of the pressing member 419 presses against the second elastic member 418, and the other end of the pressing member 419 presses against the guide rod 345 of the positioning member 344, so as to limit the movement of the guide rod 345 in the accommodating groove 415.

The second snap ring 5 is a circular ring, and the second snap ring 5 is accommodated and connected in a circular groove 911 on the rear side of the display 91; the inner ring surface of the second snap ring 5 is provided with a plurality of wedge blocks which are arranged in an annular array and protrude backwards, and the wedge blocks are used as second snap parts 51; the second fastening portions 51 are respectively inserted into the first notches 311 of the front cover 31, and the second fastening portions 51 respectively correspond to the first fastening portions 411 on the outer circumferential surface of the fastening ring-shaped fastening plate 41, so that the second fastening ring 5 is connected to or separated from the first fastening ring 4.

Thereby, the monitor 91 can be positioned up and down when the monitor 91 is in the horizontal lateral position. As shown in fig. 2, 3, 11 and 12, when the display 91 is horizontally positioned above one side of the supporting frame 21, the user pushes the pushing portion 414 to toggle the annular fastening plate 41 of the first fastening ring 4, so that the plurality of third elastic members 42 form a compressed energy storage state, the first engaging groove 416 and the second engaging groove 417 of the annular fastening plate 41 are respectively displaced from the distant ends of the first pivot 241 and the second pivot 242, the proximal ends of the first pivot 241 and the second pivot 242 simultaneously push one end of the positioning pin 234, and the display 91 cannot be adjusted to move up and down to be positioned at a fixed height when the positioning pin 234 moves to make the head 2341 correspondingly press the positioning slot 212 on one side of the supporting frame 21. At this time, if the user pushes the pushing portion 414 to the bottom, the locking action of the plurality of second locking portions 51 and the plurality of first locking portions 411 can be completely released, so that the display 91 can be separated from the first locking ring 4 after being pulled.

In addition, as shown in fig. 5, 6, 13 to 17, when the user slightly pushes the pushing portion 414 to make the first engaging groove 416 and the second engaging groove 417 of the annular fastening plate 41 and the far ends of the first pivot 241 and the second pivot 242 offset from each other, the display 91 can be prevented from being adjusted to move up and down to be positioned at a fixed height; however, due to the guide rod 345 pushed by the inclined sidewall of the receiving groove 415 of the annular latching plate 41, the positioning element 344 moves radially in a direction away from the axis of the linking element 33, so that one end of the positioning element 344 is separated from the limitation of the first position-limiting portion 264 of the annular position-limiting plate 263, and one side end of the pressing element 419 presses the guide rod 345, so that the user cannot push the pushing portion 414 continuously during the process of rotating the display 91, thereby preventing the display 91 from separating from the first latching ring 4.

When the user pushes the monitor 91 to make the linkage 33 and the first fastening ring 4 rotate synchronously with the front cover 31 and the rear cover 32 of the top seat 21, the second stopping portion 253 of the stopping ring 25 is pressed by one side of the pressing portion 331 of the linkage 33, so that the monitor 91 does not rotate excessively; when the positioning element 344 reaches the second position-limiting portion 265 of the annular position-limiting plate 263, one end of the positioning element 344 moves radially in a direction close to the axis of the position-limiting plate 263 to engage with the second position-limiting portion 265, so that the display 91 is positioned at a vertical position.

Based on the structure, the display can be rotated or disassembled by a user only when being positioned at a fixed height, so that the display can be prevented from being damaged during rotation, and the display can be conveniently reassembled after being disassembled; in addition, in the rotating process of the display, the pushing part cannot be stirred and cannot ascend and descend, so that the display can be effectively prevented from falling off due to mistaken touch of a user, and the display cannot be detached to ensure the product and the use safety. In addition, in the aspect of rotation positioning, the invention uses two stopping parts to replace the traditional positioning structure, and the two limiting parts are respectively clamped with the positioning part, so that when the display rotates to be vertical longitudinal or horizontal transverse, the display can form a stop to avoid tilting or excessive rotation. The first buckling part is accommodated in the shell of the foot rest top seat, so that the first buckling part and the second buckling part can be prevented from being too abrupt, and the damage or injury to a user caused by impact can be prevented.

The foregoing description is only of the preferred embodiments of the present invention, and it should be understood that the described embodiments are only a few, and not all, of the embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Claims (13)

1. A rotary quick-release structure of a screen is characterized by comprising

The foot rest comprises a support frame and a switching component, wherein a positioning groove is formed above one side of the support frame; the switching assembly comprises a switching piece and a rotating shaft module, wherein one end of the switching piece is connected with the supporting frame in a vertically movable mode; one end of a positioning pin protrudes out of one end of the adapter piece, and the positioning pin is coaxially positioned in the adapter piece in a reciprocating mode, so that the other end of the positioning pin is pressed and limited in the positioning groove; one side of the rotating shaft module is connected with one end of the adaptor, the rotating shaft module comprises a first pivot and a second pivot which are on the same horizontal straight line, and the adjacent ends of the first pivot and the second pivot are provided with a space for accommodating one end of the positioning pin;

the top seat comprises a clamping space for accommodating and limiting the rotating shaft module; one side of the top seat is provided with a first limiting hole which is communicated with the clamping space; and

a first buckling ring which can be accommodated and limited in the clamping space in a reset mode after rotation, wherein one side of the first buckling ring is provided with a pushing part which passes through the first limiting hole and protrudes out of the outer side of the top seat so as to push the first buckling ring to rotate; the inner ring surface of the first buckling ring is provided with a first clamping groove and a second clamping groove, and the first clamping groove and the second clamping groove respectively correspond to the far ends of the first pivot and the second pivot.

2. The screen rotation quick release structure of claim 1, wherein the top base comprises a front cover and a rear cover, the front cover and the rear cover are closed with respect to each other, the clamping space is formed between the front cover and the rear cover, the first limiting hole is formed at one side of the rear cover, the first notches are formed in an outer periphery of the front cover, and the first notches communicate with the clamping space.

3. The screen rotation quick release structure of claim 2, further comprising a second fastening ring connected to a rear side of a display, the second fastening ring having a plurality of second fastening portions for being respectively inserted into the plurality of first notches of the front cover and respectively fastening to the plurality of first fastening portions on a side of the first fastening ring.

4. The screen rotation quick release structure of claim 1, wherein the supporting frame has a guiding groove on one side, and the positioning groove is disposed above the guiding groove; one end of the adapter assembly passes through the guide groove so as to be connected with the support frame in a vertically movable mode.

5. The screen rotation quick release structure of claim 4, wherein the adaptor comprises a sleeve, a positioning post and a lifting plate, the sleeve is sleeved on the positioning post, one end of the positioning post is connected to the rotating shaft module, the other end of the positioning post is provided with a clamping groove for clamping the lifting plate, the clamping groove is communicated with a through hole for one end of the positioning post to protrude outwards; one end of the lifting plate penetrates through the guide groove, and a horizontal limiting groove is formed in the plate surface of the other end of the lifting plate and used for positioning the positioning pin capable of moving back and forth, and the other end of the positioning pin is enabled to abut against the guide groove or is limited in the positioning groove.

6. The screen rotation quick release structure of claim 5, wherein one end of the positioning pin passes through a spring for the positioning pin to reciprocate; the horizontal limiting groove at the other end of the lifting plate is T-shaped, and the other end of the positioning pin is provided with a head part for positioning in the horizontal limiting groove.

7. The screen rotation quick-release structure of claim 3, wherein the adapter assembly further comprises a stop ring having a first stop portion and a second stop portion on an outer periphery thereof; the top seat also comprises a linkage piece which is clamped and connected between the front cover body and the rear cover body, and the inner periphery of the linkage piece is provided with a pressing part for respectively pressing the first stopping part or the second stopping part after the linkage piece rotates synchronously with the top seat and the display, so that the display is positioned on the vertical longitudinal position or the horizontal transverse position.

8. The screen rotation quick release structure of claim 7, wherein the hinge module further comprises a connecting assembly, the connecting assembly comprises a fixing plate set and a limiting plate set, the fixing plate set is coaxially pivoted to the first pivot and the second pivot, the fixing plate set and the limiting plate set are connected to the stop ring in a clamping manner, and the linkage assembly is rotatably clamped between the fixing plate set and the limiting plate set.

9. The screen rotation quick-release structure of claim 1, wherein the top base further comprises a linking member, a positioning assembly is disposed on an outer periphery of the linking member, and the positioning assembly has a positioning member capable of reciprocating radially; the rotating shaft module also comprises a connecting component, the connecting component comprises a fixed plate group and a limiting plate group, the fixed plate group is coaxially pivoted with the first pivot and the second pivot, and the linkage piece is rotatably clamped between the fixed plate group and the limiting plate group; the limiting plate set comprises a limiting plate, and the outer periphery of the limiting plate is provided with a first limiting part and a second limiting part for clamping the positioning piece after the linkage piece rotates.

10. The screen rotation quick release structure of claim 9, wherein the linkage member has a second notch at an outer periphery thereof, the positioning assembly further comprises a first elastic member and a pair of clamping pieces, and one end of the first elastic member presses against the positioning member; the pair of clamping pieces are positioned in the second gap, two ends of each clamping piece are respectively connected with the linkage piece, and a positioning space is formed between the clamping pieces for positioning the first elastic piece and the positioning piece so as to enable the positioning piece to move in a reciprocating manner in the radial direction.

11. The screen rotation quick release structure of claim 10, wherein the positioning member further comprises a guide bar, the guide bar penetrates through one side of the pair of clamping pieces; one side surface of the first buckling ring is provided with an accommodating groove for accommodating and limiting a second elastic piece and a pressing piece, one end of the pressing piece presses against the second elastic piece, and the other end of the pressing piece presses against the guide rod for limiting the movement of the guide rod.

12. The screen rotation quick release structure of claim 2, wherein the first snap ring comprises an annular snap plate and a plurality of third elastic members, the annular snap plate has a plurality of third limiting portions arranged in an annular array for respectively limiting one end of the plurality of third elastic members, and a side surface of the front cover has a plurality of fourth limiting portions arranged in an annular array for respectively limiting the other end of the plurality of third elastic members.

13. The screen rotation quick release structure of claim 12, wherein a side of the annular fastening plate has a plurality of first arc-shaped grooves arranged in an annular array, one end of the first arc-shaped groove forms the third position-limiting portion, a side of the front cover has a plurality of second arc-shaped grooves arranged in an annular array, and one end of the second arc-shaped groove forms the fourth position-limiting portion.

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