CN220870553U - Swing arm quick locking device and display support - Google Patents

Abstract

The utility model discloses a swing arm quick locking device and a display bracket, which comprise a swing arm A and a swing arm B, wherein a quick locker I is arranged between the swing arm A and the swing arm B, the quick locker I comprises a set screw I, a large steel ball I, a plastic sliding bush I and more than one small steel ball I, the plastic sliding bush I is fixed at one end of the swing arm B, one side of the swing arm A is provided with a positioning seat I, the plastic sliding bush I is sleeved outside the positioning seat I, a screw mounting hole is arranged in the positioning seat I, the set screw I is in threaded connection with the screw mounting hole, the large steel ball I is arranged in the screw mounting hole and below the set screw I, the small steel ball I is annularly arranged on one side wall of the positioning seat, and the small steel ball I can move along with the large steel ball to squeeze the plastic sliding bush I to the side after being extruded downwards so as to lock the swing arm A and the swing arm B. The utility model realizes quick installation and locking without affecting the rotating effect.

Description

Swing arm quick locking device and display support

Technical Field

The utility model relates to the technical field of display supports, in particular to a swing arm rapid locking device and a display support.

Background

The display bracket is a product capable of fixing a display, a notebook computer or a tablet personal computer and the like, can help solve various technical problems encountered when people operate the computer at home or business offices, has an ergonomic design, can prevent health problems caused by working fatigue, improves working efficiency, and brings ideal space for life and work. Display brackets have been widely cited in retail, recreational, financial, medical, transportation, and other fields; products cover single screen, double screen, large format spliced screen and the like.

The display is installed on the panel, and is connected with the panel by a fixed or detachable swing arm, ① fixed: the panel is arranged on the head connecting piece so as to support the display to be arranged and fixed, the first swing arm and the second swing arm are mutually assembled, and the second swing arm is assembled on the base; the base is provided with a clamping plate, so that the base and the clamping plate are clamped on the table and used for supporting the swing arm II, the swing arm I, the panel and the display. ② removable: the panel is arranged on the head connecting piece to support the display to be installed and fixed, and a screw is designed on the side edge of the second swing arm for locking when the first swing arm and the second swing arm are disassembled; swing arm two equipment is on the base, designs the screw on the base side and locks, and base design splint make base and splint centre gripping on the desk for support swing arm two, swing arm one and panel and display's mode, but above-mentioned two modes have following problem:

① Fixed type: the display brackets are mutually fixed after being installed, so that the installation is inconvenient and the packaging and transportation cost is high; ② removable: the screw is too little difficult installation when the screw equipment of side, and the screw is in order not to influence rotation function and generally to fall relatively short easily in addition, the screw sets up relatively simultaneously and fixes on swing arm two and base for the swing arm bearing is down pressed after the whole display support equipment when using, and the clamping force that screw lock provided is not at the stress point of swing arm one and swing arm two of pushing down relatively behind swing arm two and swing arm one rotation, leads to the product function to not satisfy the requirement, and clamping effect is poor relatively, so needs to improve.

Disclosure of utility model

The utility model aims to provide a quick locking device for swing arms and a display bracket, which are used for solving the problems that in the prior art, two swing arms are fixed by side screws at present, so that the clamping force provided by a screw lock is not on the stress points of a swing arm I and a swing arm II which are pressed down relatively, the clamping effect is poor, and quick locking cannot be realized and the installation is inconvenient.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a quick locking device of swing arm, includes swing arm A and swing arm B, swing arm A and swing arm B between be provided with the quick locker of locking force in swing arm stress point center first, quick locker first include holding screw first, big steel ball first, plastic sliding bush first and more than one little steel ball first, plastic sliding bush first is fixed swing arm B one end, one side of swing arm A is provided with a positioning seat first, plastic sliding bush first cover is outside positioning seat first, has placed a screw mounting hole in positioning seat first, holding screw one threaded connection is in the screw mounting hole, big steel ball first place in the screw mounting hole and be located the below of holding screw first, and big steel ball first is along with holding screw first rotatory and be extruded down to remove, little steel ball annular setting is in on the positioning seat one lateral wall, just little steel ball first can be along with big extrusion back down side remove plastic sliding bush first realization with swing arm A and B locking.

Preferably, a mounting limiting through hole is formed in one side wall of the positioning seat, and the small steel ball is arranged in the mounting limiting through hole.

The utility model also discloses a display bracket, which comprises a base component and a panel body for fixing a display screen, wherein the panel body and the other end of the swing arm A are provided with a rotating component I, the rotating component I comprises a head connecting piece, a rotating head and a swing arm connecting piece I which are spliced with the back of the panel body, the head connecting piece is hinged with one end of the rotating head through the rotating piece, the other end of the rotating head is hinged with one end of the swing arm connecting piece I through a rotating shaft II, the other end of the swing arm connecting piece I is hinged with the other end of the swing arm A, a quick locker II which has the same structure as the quick locker I is arranged between the base component and the swing arm B, the locking force of the quick locker II is positioned in the center of a stress point, the back of the panel body is provided with a socket, two sides in the socket are provided with inserting bars, and the front end of the head connecting piece is provided with a slot spliced with the inserting bars and a buckle buckled with the socket.

Preferably, the second quick locking device comprises a second fastening screw, a second large steel ball, a second plastic sliding bushing and a second small steel ball, the second plastic sliding bushing is fixed in the base assembly, the second positioning seat is fixed at the other end of the swing arm B, the second fastening screw is threaded in the second positioning seat, the second large steel ball positioned below the second fastening screw is further arranged in the second positioning seat, more than one second small steel ball is annularly arranged on the side edge of the second positioning seat, the second small steel ball is positioned below the second large steel ball, the second large steel ball is extruded to move downwards along with the rotation of the second fastening screw, the second small steel ball can move to the side edge along with the downward extrusion of the second large steel ball to lock the base assembly and the swing arm B, the second swing arm B comprises a swing arm support and a swing arm upper cover which are buckled with each other, the second positioning seat and the swing arm support are integrally formed, and the second fastening screw can be exposed when the swing arm upper cover is opened.

Preferably, for convenient installation, the base assembly comprises a base, a vertical plate, an L plate, a screw rod and an adjusting knob, wherein the vertical plate is fixed on the side edge of the base, the L plate is fixed on the vertical plate, the screw rod is connected to the L plate in a threaded manner, the adjusting knob is fixed at the lower end of the screw rod, a clamping plate parallel to the bottom surface of the base is fixed at the upper end of the screw rod, and the second plastic sliding bushing is fixed on the base.

Preferably, for the convenience of data transmission in the later stage and convenient connection, two data lines capable of being electrically connected with a computer are arranged on the side edge of the base.

Preferably, for the convenience of rotation, a rotating seat is arranged between the swing arm A and the swing arm B, the swing arm A is hinged with the rotating seat, the first positioning seat is fixed at the other end of the rotating seat, a gland is buckled on the rotating seat, and the first fastening screw can be exposed after the gland is opened.

Preferably, the clamping effect is improved, and the inner sides of the first plastic sliding bush and the second plastic sliding bush are respectively provided with a limiting groove matched with the corresponding small steel balls.

Preferably, the rotating member is a screw III and a nut III which are in threaded connection with each other, two sides of one end of the rotating head are respectively provided with a bowl-shaped groove, a diamond-shaped gasket is placed in each bowl-shaped groove, the head connecting member is provided with an inserting groove, one end of the rotating head is inserted into the inserting groove, the head connecting members on two sides of the inserting groove are respectively provided with a rotating through hole, two limiting strips are symmetrically arranged in the rotating through holes, a locking gasket is inserted into the rotating through holes, two sides of the locking gasket are provided with clamping grooves matched with the limiting strips, one side of the locking gasket is provided with a diamond-shaped groove propped against the side wall of the diamond-shaped gasket, and the screw III is sequentially locked with the nut III after penetrating through the left side locking gasket, the left side diamond-shaped gasket, the rotating head, the right side diamond-shaped gasket and the right side locking gasket from one side.

Compared with the prior art, the utility model has the beneficial effects that: the design of the utility model realizes that the locking force direction of the first set screw is positioned on the stress points of the swing arms A1 and B2, so that the clamping effect can be finally submitted without being influenced by stress, and meanwhile, the quick locking and mounting are realized, and the parts are relatively convenient to detach.

Drawings

Fig. 1 is a schematic diagram of the overall structure of a display stand in embodiment 1;

Fig. 2 is a schematic diagram of a connection structure between the swing arm a, the first rotating assembly and the panel body in embodiment 1;

fig. 3 is a schematic diagram of a connection structure between the swing arm a, the first rotating assembly and the panel body in the embodiment 1;

fig. 4 is a schematic structural view of the panel body in embodiment 1;

Fig. 5 is a schematic structural diagram of a swing arm B in embodiment 1;

FIG. 6 is a schematic view of the structure of the base assembly in embodiment 1;

fig. 7 is an exploded view of a display stand according to embodiment 1;

FIG. 8 is a schematic cross-sectional view of a monitor stand according to embodiment 1;

FIG. 9 is a schematic structural diagram of a second plastic sliding bushing in embodiment 1;

FIG. 10 is a schematic view of the structure of the first positioning seat in embodiment 1;

FIG. 11 is a schematic cross-sectional view of a first positioning seat;

FIG. 12 is a schematic diagram showing a connection structure between a panel body and a head connector in embodiment 2;

FIG. 13 is a second schematic view of the connection structure between the panel body and the head connector in embodiment 2;

FIG. 14 is an exploded view of FIG. 13;

Fig. 15 is a schematic view of the construction of the right lock washer.

In the figure: swing arm A1, swing arm B2, swing arm support 201, swing arm upper cover 202, quick lock first 3, set screw first 301, large steel ball first 302, plastic sliding bushing first 303, small steel ball first 304, positioning seat first 101, screw mounting hole 102, mounting limit through hole 103, base assembly 4, base 401, riser 402, L plate 403, screw 404, adjustment knob 405, panel body 5, socket 501, insert 502, slot 503, clasp 504, swivel assembly first 6, head connector 601, swivel 602, swing arm connector first 603, swivel 604, swivel shaft second 605, quick lock second 7, set screw second 701, large steel ball second 702, plastic sliding bushing second 703, small steel ball second 704, positioning seat second 705, data wire 9, limit groove 8, swivel seat 10, gland 11, threading hole 12, screw third 6041, nut third 6042, bowl groove 6021, gasket 6022, socket 6011, swivel through hole 6012, limit bar 6014, lock third 6013, hexagonal clamp nut third 60421, six-angle clamp groove 421, six-in-clamp groove 6016, diamond 6016, and groove 60131.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1:

Referring to fig. 1-11, the swing arm quick locking device disclosed in this embodiment includes a swing arm A1 and a swing arm B2, and is characterized in that a quick locking device a3 with locking force located at the center of a stress point of the swing arm is disposed between the swing arm A1 and the swing arm B2, the quick locking device a3 includes a fastening screw a 301, a large steel ball a 302, a plastic sliding bush a 303 and more than one small steel ball a 304, the plastic sliding bush a 303 is fixed at one end of the swing arm B2, a positioning seat a 101 is disposed at one side of the swing arm A1, the plastic sliding bush a 303 is sleeved outside the positioning seat a 101, a screw mounting hole 102 is disposed in the positioning seat a 101, the fastening screw a 301 is in threaded connection with the screw mounting hole 102, the large steel ball a 302 is disposed in the screw mounting hole 102 and located below the fastening screw a 301, the large steel ball a 302 is pressed down along with rotation of the fastening screw a 301, the small steel ball a circular positioning seat is disposed on one side of the swing arm a 101, and the small steel ball B can be pressed down along with the rotation of the fastening screw a side of the small steel ball a 304, and the small steel ball B can be pressed down to realize the downward movement of the small steel ball B2. The specific working principle of the structure is as follows: firstly, the positioning seat I101 is inserted into the plastic sliding bush I303, the fastening screw I301 is rotated to downwards move along with the rotation to extrude the large steel ball I302, the large steel ball I302 is extruded to downwards move to extrude the small steel ball I304 on the side edge, at the moment, the small steel ball I304 outwards moves and props against the plastic sliding bush I303 to realize the locking between the plastic sliding bush I303 and the positioning seat I101, and the small steel ball I304 is spherical, and the rotation operation between the plastic sliding bush I303 and the positioning seat I101 can be ensured, so that the locking force direction of the fastening screw I301 is positioned on the stress points of the swing arm A1 and the swing arm B2, the influence of stress can be avoided, the clamping effect is finally submitted, meanwhile, the quick locking installation is realized, and the relative disassembly of parts is convenient.

Preferably, a mounting limiting through hole 103 is formed in the side wall of the first positioning seat 101, and the first small steel ball 304 is arranged in the mounting limiting through hole 103.

The specific assembly method of the structure is as follows: s1, firstly assembling, and fixing a first plastic sliding bush 303 in a swing arm B2; then fixing the first positioning seat 101 in the swing arm A1; the first small steel balls 304 are firstly installed through the screw installation holes 102 and then are sent to the side edges of the first corresponding positioning seats 101, the first large steel balls 302 are installed, the side walls of the first large steel balls 302 are contacted with the side walls of the steel balls under the action of gravity, the first fastening screws 301 are placed into the screw installation holes 102, and the first positioning seats 101 are preferably inserted into the first plastic sliding bushings 303;

S2, by screwing the first fastening screw 301 from top to bottom, in the rotation process of the first fastening screw 301, the first fastening screw 301 moves downwards to press the first large steel ball 302, the first large steel ball 302 moves downwards to press each small steel ball 304 on the side edge, the first small steel ball 304 is pressed to be moved on two sides after being pressed to finally press the first plastic sliding bush 303 on the outer side of the first positioning seat 101, and at the moment, the first plastic sliding bush 303 deforms to be clamped with the first small steel ball 304 to lock the swing arm A1 and the swing arm B2, so that the swing arm A1 and the swing arm B2 are prevented from being loosened.

The embodiment also discloses a display bracket, which comprises a base component 4 and a panel body 5 for fixing a display screen, wherein a rotating component I6 is arranged between the panel body 5 and the other end of the swing arm A1, the rotating component I6 comprises a head connecting piece 601, a rotating head 602 and a swing arm connecting piece I603 which are spliced with the back surface of the panel body 5, the head connecting piece 601 is hinged with one end of the rotating head 602 through the rotating piece 604, the other end of the rotating head 602 is hinged with one end of the swing arm connecting piece I603 through a rotating shaft II 605, the other end of the swing arm connecting piece I603 is hinged with the other end of the swing arm A1, a quick locker II 7 which has the same structure as the quick locker I3 is arranged between the base component 4 and the swing arm B2, the locking force of the quick locker II 7 is positioned at the center of a stress point, the back of the panel body 5 is provided with a socket 501, two sides in the socket 501 are provided with a cutting 502, the front end of the head connecting piece 601 is provided with a slot 503 which is inserted with the cutting 502 and a buckle 504 which is buckled with the socket 501, the quick locking device II 7 comprises a fastening screw II 701, a big steel ball II 702, a plastic sliding bush II 703 and a small steel ball II 704, the plastic sliding bush II 703 is fixed in the base component 4, the other end of the swing arm B2 is fixed with a positioning seat II 705, the fastening screw II 701 is threaded in the positioning seat II 705, the positioning seat II 705 is also internally provided with a big steel ball II 702 which is positioned below the fastening screw II 701, the side edge of the positioning seat II 705 is annularly provided with more than one small steel ball II 704, the small steel ball II 704 is positioned below the big steel ball II 702, and big steel ball two 702 is moved down along with the rotation of holding screw two 701 by the extrusion, little steel ball two 704 can be along with big steel ball two 702 down after the extrusion to side remove extrusion plastic sliding bush two 703 realize locking base subassembly 4 and swing arm B2, swing arm B2 includes swing arm support 201 and swing arm upper cover 202 of mutual lock, positioning seat two 705 and swing arm support 201 integrated into one piece set up, just swing arm upper cover 202 can expose holding screw two 701 when opening, and set up swing arm upper cover 202 and conveniently later stage open and expose holding screw two 701, make things convenient for later stage operation, hide holding screw two 701 after the installation moreover, guarantee whole aesthetic property. The rotating member 604 described in this embodiment is a common rotating shaft.

Preferably, for easy installation, the base assembly 4 includes a base 401, a riser 402, an L plate 403, a screw 404 and an adjusting knob 405, where the riser 402 is fixed on a side of the base 401, the L plate 403 is fixed on the riser 402, the screw 404 is connected to the L plate 403 in a threaded manner, the adjusting knob 405 is fixed at a lower end of the screw 404, a clamping plate 406 parallel to a bottom surface of the base 401 is fixed at an upper end of the screw 404, and the second plastic sliding bushing 703 is fixed on the base 401.

Preferably, for the convenience of data transmission in the later stage, the side of the base 401 is provided with two data lines 9 which can be electrically connected with a computer, the data lines 9 are arranged, the connecting lines inside the data lines 9 are directly connected with the computer in the later stage, then other devices can be plugged in through the data lines 9, and the base 401 is positioned above a desk, so that the data transmission is convenient.

Preferably, for convenience in rotation, a rotating seat 10 is provided between the swing arm A1 and the swing arm B2, the swing arm A1 is hinged to the rotating seat 10, the first positioning seat 101 is fixed to the other end of the rotating seat 10, the pressing cover 11 is fastened to the rotating seat 10, the first fastening screw 301 can be exposed after the pressing cover 11 is opened, the first fastening screw 301 is exposed in a later period through the arrangement of the pressing cover 11, and meanwhile, the attractive appearance is achieved.

Preferably, a limiting groove 8 matching with a corresponding small steel ball is disposed on the inner side of the first plastic sliding bushing 303 and the second plastic sliding bushing 703 to improve the clamping effect, and it should be noted that the first plastic sliding bushing 303 and the second plastic sliding bushing 703 have the same structure, so that the first plastic sliding bushing 303 can refer to the second plastic sliding bushing 703 in fig. 9, and the first positioning seat 101 and the second positioning seat 705 have the same structure, so that the second positioning seat 705 can refer to the first positioning seat 101 in fig. 10 and 11.

Preferably, for the convenience of threading, the bottom of swing arm A1 is provided with through wires hole 12, through setting up through wires hole 12, realizes the convenience of line and passes, avoids the indiscriminate string of line to influence pleasing to the eye.

Preferably, for easy disassembly, a socket 501 is provided on the back surface of the panel body 5, inserting strips 502 are provided on both sides in the socket 501, and a slot 503 for inserting the inserting strips 502 and a buckle 504 for buckling the socket 501 are provided on the front end of the head connector 601.

The specific working mode of the television bracket disclosed in the embodiment is as follows: the panel body 5 and the head connecting piece 601 adopt an inserting connection mode and are used for realizing quick assembly and disassembly in use by a quick assembly and disassembly structure; the later transportation is convenient; the structure consists of four parts of a swing arm A1, a swing arm B2, a panel body 5 and a base component 4,

The swing arm A1 is hinged with a rotating seat 10, a first quick locker 3 is arranged between the rotating seat 10 and the swing arm B2 and comprises a first fastening screw 301, a first large steel ball 302, a first plastic sliding bush 303 and a first small steel ball 304, when the swing arm A1 works, downward pressure is generated by rotating and screwing the first fastening screw 301 into the first positioning seat 101, so that the first large steel ball 302 below the first fastening screw 301 is forced to move outwards under the downward pressure, at the moment, the first small steel ball 304 is driven to move outwards to generate transverse extrusion force, the first plastic sliding bush 303 on the inner wall of the swing arm B2 is extruded through the extrusion force, the swing arm A1 can realize quick locking of the swing arm on the swing arm B2, meanwhile, a second quick locker 7 is arranged between the swing arm B2 and the swing arm A1, and comprises a second fastening screw 701, a second large steel ball 702, a second plastic sliding bush 703, a second small steel ball 704 and a second positioning seat 705, when the swing arm A1 works, the second large steel ball 705 is driven to move downwards under the downward pressure, the second fastening screw 701 is driven to move outwards to generate transverse extrusion force, and the second plastic sliding bush 704 is driven to move outwards through the downward extrusion force of the second steel ball 702, and the second steel ball 702 is driven to move outwards through the extrusion force, and the second plastic sliding bush 704 is driven to move outwards;

The base component 4 mainly comprises a base 401, a vertical plate 402, an L plate 403, a screw 404 and an adjusting knob 405, and comprises a data line 9, when the base component is in operation, the base component is assembled on the screw 404 through a clamping plate 406 and the adjusting knob 40, the screw 404 is fixed on the L plate 403, the L plate 403 is assembled with the vertical plate 402, an upward clamping force is generated by rotating the adjusting knob 405, the clamping plate 406 is assembled on the adjusting knob 405, the clamping plate 406 and the L plate 403 can be clamped with a clampable table plate through the upward clamping force generated by the adjusting knob 405, and the base component 4 can be firmly fixed on the table plate; the base component 4 is assembled with the base 401 through the data line 9, and the other end of the data line can be connected with a computer host in actual use, so that the product can be connected with the computer host through the data line 9 in use, and equipment such as data transmission and mobile phone and the like can be conveniently charged.

Example 2:

Referring to fig. 12-14, the general structure of a swing arm quick locking device disclosed in this embodiment is the same as that of embodiment 1, except that, as an preference, the rotating member 604 is a screw three 6041 and a nut three 6042 which are in threaded connection with each other, two sides of one end of the rotating member 602 are respectively provided with a bowl-mounted groove 6021, a gasket 6022 is placed in each bowl-mounted groove 6021, a plug groove 6011 is arranged on the head connecting member 601, one end of the rotating member 602 is plugged in the plug groove 6011, two limit bars 6014 are symmetrically arranged in the rotating through hole 6012, a locking washer 6013 is plugged in the rotating through hole 6012, two sides of the locking washer 6013 are provided with clamping grooves 6015 matched with the limit bars 6014, one side of the locking washer 6013 is provided with a groove 6016 which abuts against the side wall of the diamond 6022, two sides of the three-sided clamping washer 6041 are sequentially inserted into the three-sided sealing washer 6041, two sides of the three-sided washer 6041 are sequentially matched with the nut 60135, and the two sides of the nut 60135 are respectively arranged in the groove 60135, and the two sides of the nut 6041 are respectively matched with the nut 60135, and the nut 6013 are respectively arranged at two sides of the three sides of the nut 6041 are respectively, and the nut 6013 are respectively matched with the two sides of the nut 6041, and the nut 6013 are respectively arranged at the two sides of the nut 6041, and the nut 6013 are respectively, and the two side nuts 6022 are respectively matched with the nut 6013 and the nut 6013, and the nut 6013 are respectively, and the nut 6013 is respectively arranged at the two sides and the two side and the nut 6022 and the nut is respectively, and the nut is convenient to be mounted, and guarantee through-hole and the alignment of rotatory through-hole 6012 in diamond packing ring 6022 center set up, insert the nut three 6042 in the lock packing ring 6013 on right side this moment, last with screw three 6041 run through left side lock packing ring 6013 in proper order, left side diamond packing ring 6022, head connecting piece 601, right side diamond packing ring 6022, behind the lock packing ring 6013 on right side with nut three 6042 locking realize spacing connection, this moment can guarantee that diamond packing ring 6022 one end and bowl dress recess 6021's inboard inclined plane offset realizes the clamp force, diamond packing ring 6022's the other end and lock packing ring 6016 on the inclined plane offset realization clamp force, the frictional force that produces when guaranteeing whole head namely rotating head 602 and head connecting piece 601 to do rotary motion is bigger, the final assurance product bearing capacity is bigger, the function is stronger.

The present application needs to be explained, a gas spring assembly driving the swing arm A1 to tilt up and down is disposed in the swing arm A1, and a specific structure of how the swing arm A1 is adjusted by the specific gas spring assembly belongs to a conventional technology in the art, so this will not be described in detail.

Claims (9)

1. The swing arm quick locking device comprises a swing arm A (1) and a swing arm B (2), and is characterized in that a quick locker I (3) with locking force positioned at the center of a stress point of the swing arm is arranged between the swing arm A (1) and the swing arm B (2), the quick locker I (3) comprises a fastening screw I (301), a large steel ball I (302), a plastic sliding bush I (303) and more than one small steel ball I (304), the plastic sliding bush I (303) is fixed at one end of the swing arm B (2), one side of the swing arm A (1) is provided with a positioning seat I (101), the plastic sliding bush I (303) is sleeved outside the positioning seat I (101), a screw mounting hole (102) is arranged in the positioning seat I (101), the fastening screw I (301) is in threaded connection with the screw mounting hole (102), the large steel ball I (302) is arranged in the mounting hole (102) and positioned below the fastening screw I (301), the large steel ball I (302) is arranged in an annular shape along with the rotation of the fastening screw (301) and is arranged on the small steel ball I (101), and the small steel ball I (304) can move to the side along with the large steel ball I (302) to extrude the plastic sliding bushing I (303) after being extruded downwards, so that the swing arm A (1) and the swing arm B (2) can be locked.

2. The swing arm quick lock device according to claim 1, wherein: the side wall of the first positioning seat (101) is provided with a mounting limiting through hole (103), and the first small steel ball (304) is arranged in the mounting limiting through hole (103).

3. A monitor stand comprising a swing arm quick lock apparatus employing the apparatus of claim 1, wherein: still include base subassembly (4) and be used for panel body (5) of fixed display screen, panel body (5) and swing arm A (1) the other end between be provided with rotating assembly one (6), rotating assembly one (6) include with panel body (5) the back grafting head connecting piece (601), rotating head (602), swing arm connecting piece one (603), head connecting piece (601) are articulated with rotating head (602) one end through rotating member (604), rotating head (602) other end is articulated with swing arm connecting piece one (603) one end through rotation axis two (605), swing arm connecting piece one (603) the other end and swing arm A (1) the other end articulated, base subassembly (4) and swing arm B (2) between be provided with one and quick lock ware one (3) the same quick lock ware two (7) structure, the locking force of quick lock ware two (7) is located the center of stress point the back of panel body (5) be provided with socket (501) in socket (501) both sides are provided with in socket (501) plug and socket (502) and are provided with socket (502) and are buckled with plug and socket (502) and are provided with.

4. A monitor support according to claim 3, wherein: the quick locking device II (7) comprises a set screw II (701), a large steel ball II (702), a plastic sliding bush II (703) and a small steel ball II (704), wherein the plastic sliding bush II (703) is fixed in the base component (4), a positioning seat II (705) is fixed at the other end of the swing arm B (2), the set screw II (701) is threaded in the positioning seat II (705), a large steel ball II (702) positioned below the set screw II (701) is further arranged in the positioning seat II (705), more than one small steel ball II (704) is annularly arranged at the side edge of the positioning seat II (705), the small steel ball II (704) is positioned below the large steel ball II (702), the large steel ball II (702) is extruded to move downwards along with the rotation of the set screw II (701), the small steel ball II (704) can move to extrude the plastic sliding bush II (703) along with the downward extrusion of the large steel ball II (702) to realize the integral locking of the base component (4) and the swing arm B (2) and the swing arm II (201) and the swing arm cover (201) are buckled with each other, and the swing arm II (201) are integrally formed, and the second set screw (701) can be exposed when the swing arm upper cover (202) is opened.

5. A monitor bracket according to claim 4, wherein: the base assembly (4) comprises a base (401), a vertical plate (402), an L plate (403), a screw rod (404) and an adjusting knob (405), wherein the vertical plate (402) is fixed on the side edge of the base (401), the L plate (403) is fixed on the vertical plate (402), the screw rod (404) is connected with the L plate (403) in a threaded manner, the adjusting knob (405) is fixed at the lower end of the screw rod (404), a clamping plate (406) parallel to the bottom surface of the base (401) is fixed at the upper end of the screw rod (404), and the second plastic sliding bushing (703) is fixed on the base (401).

6. A monitor bracket according to claim 5, wherein: two data wires (9) which can be electrically connected with a computer are arranged on the side edge of the base (401).

7. A monitor support according to claim 5 or 6, wherein: the swing arm A (1) and the swing arm B (2) are provided with a rotating seat (10), the swing arm A (1) is hinged with the rotating seat (10), a first positioning seat (101) is fixed at the other end of the rotating seat (10), a pressing cover (11) is buckled on the rotating seat (10), and the pressing cover (11) can be exposed out of the first fastening screw (301) after being opened.

8. A monitor support according to claim 3, wherein: and a limiting groove (8) matched with the corresponding small steel ball is arranged on the inner sides of the first plastic sliding bush (303) and the second plastic sliding bush (703).

9. A monitor support according to claim 3, wherein: rotating member (604) be screw three (6041) and nut three (6042) of mutual threaded connection, the both sides of rotating member (602) one end all are provided with a bowl dress recess (6021), have placed a diamond washer (6022) in each bowl dress recess (6021), be provided with spliced groove (6011) on head connecting member (601), rotating member (602) one end peg graft in spliced groove (6011), just all be provided with a rotatory through-hole (6012) on head connecting member (601) of spliced groove (6011) both sides rotating through-hole (6012) in symmetry are provided with two spacing bars (6014), have inserted a locking washer (6013) in rotatory through-hole (6012), the both sides of locking washer (6013) set up with spacing bar (6014) complex screens groove (6015), locking washer (6013) diamond one side is provided with recess (6016) with rhombus (6022) offset lateral wall, locking washer (6013) are followed side of rotation through-hole (6012), locking washer (6013) are followed side of rotation and nut (6012) are locked with the side of rotation of the screw three side of rotation (6042).