CN211289365U

CN211289365U - Display support

Info

Publication number: CN211289365U
Application number: CN201921688527.2U
Authority: CN
Inventors: 张晓东
Original assignee: Wuhan Pansheng Dingcheng Technology Co ltd
Current assignee: Wuhan Pansheng Dingcheng Technology Co ltd
Priority date: 2019-10-10
Filing date: 2019-10-10
Publication date: 2020-08-18
Anticipated expiration: 2029-10-10

Abstract

The utility model discloses a display support, include: the lower ends of the left and right supporting arms are respectively fixed on the supporting base through a connecting shaft and a left and right fixed hinged support, and the upper ends of the left and right supporting arms are respectively connected with a display connecting piece fixed on a display; the angle of the display is adjusted and positioned by the relative movement of the display connecting piece and the left and right supporting arms; the utility model can not only realize the adjustment and fixation of the display in a vertical and certain angle, but also realize the adjustment of the left and right supporting arms in a lying posture; in addition, the left and right supporting arms of the support and the supporting base are included angles smaller than 90 degrees, so that the center of gravity of the display is always kept at the middle position of the support, and the display cannot topple over in the process of large-angle overturning, and is more firmly supported.

Description

Display support

Technical Field

The utility model relates to a computer accessories field especially relates to a display support.

Background

The display bracket is used for supporting computer display equipment and is generally arranged on a working table, the common display bracket is fixed and not adjustable, so that the use is inconvenient, people work in front of a computer for a long time, a sitting posture is continuously kept, fatigue is easy to generate, and the human health is influenced; at present, most display supports can only adjust a display by a certain angle when the display supports are adjusted by forward tilting and backward tilting, the adjusting range is small, the adjustment of the lying posture of the display supports cannot be realized, and the existing display supports cannot be met in some occasions where a computer display needs to be laid or rotated by a large angle.

The utility model patent of the utility model with the publication number of grant CN204026068U discloses a diversified adjustable display and support thereof, the support includes: the display device comprises a base, a telescopic supporting rod assembly arranged on the base and a hinge rotating assembly arranged at the top end of the supporting rod assembly and used for rotating the display; the display is fixedly connected through the hinge rotating assembly and can be rotated, so that both the transverse screen and the vertical screen can be hung; can correspond through telescopic bracing piece subassembly and reciprocate the display: although the utility model realizes the lifting through the pneumatic action, the display is moved by hand and the angle adjustment of the forward leaning and backward leaning of the display is realized by depending on the friction force and the display stays at the position of the adjusted angle, the structure of the device is complex, the whole support has larger volume and occupies space, and the situation that the computer display needs to be laid down or rotated by a larger angle can not be met; in addition, this utility model discloses a hinge fixed bolster and hinge runing rest relative rotation motion have realized that the display leans forward, the angle modulation that leans back, but relative rotation angle is realized by the spacing piece of bending of hinge fixed bolster and hinge runing rest's spacing bayonet socket cooperation, and angle modulation is less.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned deficiencies of the prior art, the present invention provides a display stand, which realizes the angle adjustment and positioning of the display through the relative movement of the display connecting piece and the left and right supporting arms, and realizes the angle adjustment and positioning of the left and right supporting arms through the locking device; the display bracket of the utility model can be adjusted to a larger angle when being adjusted to be inclined forward and backward, has a larger adjusting range, not only can realize the adjustment and fixation of the display in a vertical and certain angle, but also can realize the adjustment of the left and right supporting arms in a lying posture; the angle adjustment and the positioning of the left and the right supporting arms are realized through the separation and the clamping of a positioning pin in the locking device and a positioning hole; in addition, the left and right supporting arms of the support and the supporting base are included angles smaller than 90 degrees, so that the center of gravity of the display is always kept at the middle position of the support, and the display cannot topple over in the process of large-angle overturning, and is more firmly supported.

The utility model discloses a realize through following technical scheme.

A display stand, comprising: the lower ends of the left supporting arm and the right supporting arm are respectively fixed on the supporting base through a connecting shaft and a left fixed hinged support and a right fixed hinged support, and the upper ends of the left supporting arm and the right supporting arm are respectively connected with a display connecting piece fixed on a display; the left supporting arm and the right supporting arm are of hollow structures, a left locking device and a right locking device are respectively arranged in the inner cavities of the left supporting arm and the right supporting arm, and the upper ends of the left locking device and the right locking device are connected through a middle connecting rod.

Furthermore, the display connecting piece is respectively connected with the upper ends of the left supporting arm and the right supporting arm through a left rotating shaft of the display connecting piece and a right rotating shaft of the display connecting piece; the left rotating shaft of the connecting piece and the right rotating shaft of the display connecting piece are respectively and fixedly connected with the display connecting pieces on two sides, and the left rotating shaft of the connecting piece and the right rotating shaft of the display connecting piece are respectively and rotatably connected with the left supporting arm and the right supporting arm; the display connecting piece is locked with the left rotating shaft of the display connecting piece and the right rotating shaft of the display connecting piece through the elastic locking piece.

The left locking device comprises: the left pressing adjusting block, the left driving rod, the left rotating rod, the left driven rod, the left rotating pin, the left positioning pin and the left lower adjusting block; one end of the left pressing adjusting block is fixedly connected with the left end of the middle connecting rod, the upper end of the left driving rod is hinged to the left end of the middle connecting rod, the lower end of the left driving rod is rotatably connected with one end of the left rotating rod, and the other end of the left rotating rod is rotatably connected with the upper end of the left driven rod; the middle of the left rotating rod is fixed on the inner wall of the left supporting arm through a left rotating pin; the lower extreme of left driven lever articulates on left lower regulating block, the bottom of left lower regulating block still fixed mounting has left locating pin.

The right locking device comprises: the right pressing adjusting block, the right driving rod, the right rotating rod, the right driven rod, the right rotating pin, the right positioning pin and the right lower adjusting block; one end of the right pressing adjusting block is fixedly connected with the right end of the middle connecting rod, the upper end of the right driving rod is hinged to the right end of the middle connecting rod, the lower end of the right driving rod is rotatably connected with one end of the right rotating rod, and the other end of the right rotating rod is rotatably connected with the upper end of the right driven rod; the middle of the right rotating rod is fixed on the inner wall of the right supporting arm through a right rotating pin; the lower extreme of right driven lever articulates on the regulating block down in the right side, the bottom of regulating block down in the right side still fixed mounting has right locating pin.

The upper surfaces of the upper ends of the left support arm and the right support arm are respectively provided with a left arm upper chute and a right arm upper chute; the upper ends of the right side surface of the left supporting arm and the left side surface of the right supporting arm are respectively provided with a left arm side sliding chute and a right arm side sliding chute; two ends of the middle connecting rod respectively penetrate into the left supporting arm and the right supporting arm through the left arm side sliding chute and the right arm side sliding chute and are respectively connected with the left locking device and the right locking device; the left side of left locking device and right locking device presses down the regulating block and the right side presses down the end of pressing of regulating block and is stretched out and can follow left arm and go up spout and right arm upper chute and slide from top to bottom by spout and right arm upper chute on the left arm respectively.

The upper surfaces of the upper ends of the left support arm and the right support arm are also provided with a left arm lower sliding chute and a right arm lower sliding chute; and the left lower adjusting block and the right lower adjusting block of the left locking device and the right locking device respectively extend out of the left arm lower sliding groove and the right arm lower sliding groove and can slide up and down along the left arm lower sliding groove and the right arm lower sliding groove.

All be provided with the spring in spout, the spout on the right arm, spout under the left arm and the spout under the right arm on the left arm, the top of spring is pressed the regulating block by a left side respectively, is pressed the regulating block by the right side, is pressed regulating block, regulating block and right regulating block down and pushes down and the bottom passes through spring base location.

And the left fixed hinged support and the right fixed hinged support are respectively provided with a left positioning hole and a right positioning hole, and a left positioning pin and a right positioning pin at the bottoms of the left lower adjusting block and the right lower adjusting block are matched with the left positioning hole and the right positioning hole under the pressure action of the springs in a natural state.

Compared with the prior art, the beneficial effects of the utility model reside in that:

1. display support can adjust great angle when leaning forward backward and adjusting, accommodation is great, not only can realize that the display is vertical, be the fixed of certain angle, can also realize that the support arm is the regulation of the gesture of lying about.

2. Display support in left and right support arm be less than 90 degrees contained angles with supporting the base, make the focus of display remain throughout in support middle part position, carry out the in-process of wide-angle upset at the display, can not take place to empty.

3. The utility model relates to a supporting structure realizes the angle adjustment of the forward and backward tilting of a display by manually moving the display; the positioning pin is pushed to position by matching with a connecting rod mechanism in the locking device, so that the problem that the support arm of the existing display support cannot be adjusted in a lying posture is solved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic view of a display stand according to the present invention;

fig. 2 is a schematic view of a left and right locking device and a connection structure thereof in a display stand according to the present invention;

fig. 3 is a schematic structural view of the left and right locking devices inside the left and right supporting arms of the display stand according to the present invention;

fig. 4 is a schematic view illustrating an initial state of angle adjustment after the display is mounted in the display stand according to the present invention;

fig. 5 is a schematic view illustrating a display in a display stand according to the present invention when the display is adjusted to a horizontal state;

fig. 6 shows that the display stand adjusting and locking device of the present invention moves the left positioning pin and the right positioning pin upward to leave the left positioning hole and the right positioning hole;

fig. 7 is a schematic diagram of the display support according to the present invention when the left support arm 2 and the right support arm 3 rotate to the horizontal state.

In the figure: 1. a support base; 2. a left support arm; 201. a left arm upper chute; 202. a left arm side chute; 203. a left arm lower chute; 3. a right support arm; 301. a right arm upper chute; 302. a right arm side chute; 303. a right arm lower chute; 4. a left fixed hinged support; 5. a right fixed hinged support; 6. a display connector; 7. a left locking device; 701. pressing the adjusting block leftwards; 702. a left drive rod; 703. a left rotating rod; 704. a left driven lever; 705. a left turn pin; 706. a left locating pin; 707. a lower left adjustment block; 8. a right locking device; 801. pressing the adjusting block right; 802. a right drive rod; 803. a right rotating rod; 804. a right driven lever; 805. a right turn pin; 806. a right locating pin; 807. a lower right adjustment block; 9. a middle connecting rod; 10. a connecting shaft; 11. a left rotating shaft of the display connecting piece; 12. a display connector right rotating shaft; 13. an elastic locking member; 14. a spring; 15. a spring mount; 16. a left positioning hole; 17. a right positioning hole; 18. a display.

Detailed Description

The technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

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

Referring to fig. 1, a display stand includes: the support device comprises a support base 1 and a left support arm 2 and a right support arm 3 which are respectively positioned at two sides of the support base 1, wherein the lower ends of the left support arm 2 and the right support arm 3 are respectively fixed on the support base 1 through a connecting shaft 10 and a left fixed hinged support 4 and a right fixed hinged support 5, and the upper ends of the left support arm 2 and the right support arm 3 are respectively connected with a display connecting piece 6 fixed on a display 18; the left supporting arm 2 and the right supporting arm 3 are of hollow structures, a left locking device 7 and a right locking device 8 are arranged in the inner cavities of the left supporting arm and the right supporting arm respectively, and the upper ends of the left locking device 7 and the right locking device 8 are connected through a middle connecting rod 9.

According to fig. 1, the display connecting piece 6 is connected with the upper ends of the left supporting arm 2 and the right supporting arm 3 through a display connecting piece left rotating shaft 11 and a display connecting piece right rotating shaft 12 respectively; the left rotating shaft 11 of the connecting piece and the right rotating shaft 12 of the display connecting piece are respectively and fixedly connected with the display connecting pieces 6 at two sides, and the left rotating shaft 11 of the connecting piece and the right rotating shaft 12 of the display connecting piece are respectively and rotatably connected with the left supporting arm 2 and the right supporting arm 3; the display connecting piece 6 is locked with the display connecting piece left rotating shaft 11 and the display connecting piece right rotating shaft 12 through the elastic locking piece 13.

Referring to fig. 2, the left locking device 7 includes: a left pressing adjusting block 701, a left driving rod 702, a left rotating rod 703, a left driven rod 704, a left rotating pin 705, a left positioning pin 706 and a left lower adjusting block 707; one end of the left pressing adjusting block 701 is fixedly connected with the left end of the middle connecting rod 9, the upper end of the left driving rod 702 is hinged to the left end of the middle connecting rod 9, the lower end of the left driving rod 702 is rotatably connected with one end of a left rotating rod 703, and the other end of the left rotating rod 703 is rotatably connected with the upper end of a left driven rod 704; the middle of the left rotating rod 703 is fixed on the inner wall of the left support arm 2 through a left rotating pin 705; the lower end of the left driven rod 704 is hinged to a left lower adjusting block 707, and the bottom of the left lower adjusting block 707 is also fixedly provided with a left positioning pin 706.

Referring to fig. 2, the right locking device 8 includes: a right pressing adjusting block 801, a right driving rod 802, a right rotating rod 803, a right driven rod 804, a right rotating pin 805, a right positioning pin 806 and a right lower adjusting block 807; one end of the right pressing adjusting block 801 is fixedly connected with the right end of the middle connecting rod 9, the upper end of the right driving rod 802 is hinged to the right end of the middle connecting rod 9, the lower end of the right driving rod 802 is rotatably connected with one end of the right rotating rod 803, and the other end of the right rotating rod 803 is rotatably connected with the upper end of the right driven rod 804; the middle of the right rotating rod 803 is fixed on the inner wall of the right supporting arm 2 through a right rotating pin 805; the lower end of the right driven rod 804 is hinged to a right lower adjusting block 807, and the bottom of the right lower adjusting block 807 is fixedly provided with a right positioning pin 806.

Referring to fig. 1, the upper surfaces of the upper ends of the left support arm 2 and the right support arm 3 are respectively provided with a left arm upper chute 201 and a right arm upper chute 301; the upper ends of the right side surface of the left supporting arm 2 and the left side surface of the right supporting arm 3 are respectively provided with a left arm side sliding groove 202 and a right arm side sliding groove 302; two ends of the middle connecting rod 9 respectively penetrate into the left supporting arm 2 and the right supporting arm through a left arm side sliding groove 202 and a right arm side sliding groove 302 and are respectively connected with the left locking device 7 and the right locking device 8; the pressing ends of the left pressing adjusting block 701 and the right pressing adjusting block 801 of the left locking device 7 and the right locking device 8 respectively extend out of the left arm upper chute 201 and the right arm upper chute 301 and can slide up and down along the left arm upper chute 201 and the right arm upper chute 301.

Referring to fig. 1, the upper surfaces of the upper ends of the left support arm 2 and the right support arm 3 are further provided with a left arm lower chute 203 and a right arm lower chute 303; the left lower adjusting block 707 and the right lower adjusting block 807 of the left locking device 7 and the right locking device 8 respectively extend from the left arm lower chute 203 and the right arm lower chute 303 and can slide up and down along the left arm lower chute 203 and the right arm lower chute 303.

Referring to fig. 1 and 3, springs 14 are disposed in the left arm upper chute 201, the right arm upper chute 301, the left arm lower chute 203 and the right arm lower chute 303, top ends of the springs 14 are pressed by a left pressing adjusting block 701, a right pressing adjusting block 801, a left lower adjusting block 707 and a right lower adjusting block 807 respectively, and bottom ends of the springs are positioned by a spring base 15.

Referring to fig. 1, 3 and 4, the left fixing hinge 4 and the right fixing hinge 5 are respectively provided with a left positioning hole 16 and a right positioning hole 17, and naturally, a left positioning pin 706 and a right positioning pin 806 at the bottom of the left lower adjusting block 707 and the right lower adjusting block 807 are matched with the left positioning hole 16 and the right positioning hole 17 under the pressure of the spring 14.

Referring to fig. 4, 5, 6 and 7, the working principle of the display bracket of the present invention is: firstly, the display 18 is installed on the display connecting piece 6 (as shown in fig. 4), in a natural state, the left positioning pin 706 and the right positioning pin 806 are respectively matched with the left positioning hole 16 and the right positioning hole 17, the left supporting arm 2 and the right supporting arm 3 are hinged on the supporting base 1 at an inclination angle smaller than 90 degrees, and the gravity center of the display 18 is ensured to be positioned in a position that the left supporting arm 2 and the right supporting arm 3 cannot rotate because the positioning pins 806 are clamped in the left positioning hole 16 and the right positioning hole 17; the forward and backward tilting angle of the display 18 is adjusted by manually carrying the display 18, and the display 18 can be positioned and maintained at a certain position after rotating for a certain angle due to the friction force of the elastic locking piece 13; when the display 18 needs to be laid down (as shown in fig. 5), firstly, the display 18 is moved clockwise to a horizontal state, and then the left pressing adjusting block 701 and the right pressing adjusting block 801 are pressed simultaneously by two hands (as shown in fig. 6), and the left pressing adjusting block 701 and the right pressing adjusting block 801 slide downwards along the left arm upper chute 201 and the right arm upper chute 301 against the elastic force of the spring 14; the middle connecting rod 9 connected with the left pressing adjusting block 701 and the right pressing adjusting block 801 respectively pushes the left driving rod 702 and the right driving rod 802 to move downwards and pushes the left rotating rod 703 and the right rotating rod 803 to rotate clockwise, the other ends of the left rotating rod 703 and the right rotating rod 803 respectively push the left driven rod 704 and the right driven rod 804 to move upwards, so that the left lower adjusting block 707 and the right lower adjusting block 807 connected with the left driven rod 704 and the right driven rod 804 move upwards, and the left positioning pin 706 and the right positioning pin 806 connected with the left lower adjusting block 707 and the right lower adjusting block 807 move upwards to leave the left positioning hole 16 and the right positioning hole 17; at this time, the left support arm 2 and the right support arm 3 can rotate around the connecting shaft 10; the left support arm 2 and the right support arm 3 are manually moved to rotate counterclockwise around the connecting shaft 10 to be horizontal to the support base 1, the left pressing adjustment block 701 and the right pressing adjustment block 801 are released, and the left positioning pin 706 and the right positioning pin 806 are pushed into the left positioning hole 16 and the right positioning hole 17 (as shown in fig. 7) by the restoring force of the spring 14.

The display bracket of the utility model can adjust a larger angle when adjusting forward and backward, has a larger adjusting range, can realize the large-angle adjustment of the display in a lying posture (namely an angle of 90 degrees or more), and pulls the display 18 to a proper angle; the left positioning pin 706 and the right positioning pin 806 at the bottom of the left pressing adjusting block 701 and the right pressing adjusting block 801 are in contact with the left positioning hole 16 and the right positioning hole 17 under the pressure of the spring 14, so that the left support arm 2 and the right support arm 3 are kept at a fixed angle and cannot rotate; the left positioning pin 706 and the right positioning pin 806 are separated from the left positioning hole 16 and the right positioning hole 17 by manually pressing the left pressing adjusting block 701 and the right pressing adjusting block 801, the left supporting arm 2 and the right supporting arm 3 are rotated to a proper angle, finally the left pressing adjusting block 701 and the right pressing adjusting block 801 are loosened, and the left positioning pin 706 and the right positioning pin 806 are pushed into the left positioning hole 16 and the right positioning hole 17 under the restoring force of the spring 14, so that the left supporting arm 2 and the right supporting arm 3 are kept at a fixed angle and cannot rotate; the utility model discloses simple structure can realize the wide-angle motion to realize erectting of display, be certain angle fixed and the flat gesture such as lying and fix a position in every gesture.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; these modifications and substitutions do not depart from the essence of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. A display stand, comprising: the support device comprises a support base (1), and a left support arm (2) and a right support arm (3) which are respectively positioned at two sides of the support base (1), wherein the lower ends of the left support arm (2) and the right support arm (3) are respectively fixed on the support base (1) through a connecting shaft (10) and a left fixed hinged support (4) and a right fixed hinged support (5), and the upper ends of the left support arm (2) and the right support arm (3) are respectively connected with a display connecting piece (6) fixed on a display (18); the left supporting arm (2) and the right supporting arm (3) are of hollow structures, a left locking device (7) and a right locking device (8) are respectively arranged in the inner cavities of the left supporting arm and the right supporting arm, and the upper ends of the left locking device (7) and the right locking device (8) are connected through a middle connecting rod (9).

2. A monitor support according to claim 1, wherein the monitor connector (6) is connected to the upper ends of the left support arm (2) and the right support arm (3) via a monitor connector left pivot (11) and a monitor connector right pivot (12), respectively; the left rotating shaft (11) of the connecting piece and the right rotating shaft (12) of the display connecting piece are fixedly connected with the display connecting pieces (6) on the two sides respectively, and the left rotating shaft (11) of the connecting piece and the right rotating shaft (12) of the display connecting piece are rotatably connected with the left supporting arm (2) and the right supporting arm (3) respectively; the display connecting piece (6) is locked with the display connecting piece left rotating shaft (11) and the display connecting piece right rotating shaft (12) through an elastic locking piece (13).

3. A display stand according to claim 1, characterised in that the left locking device (7) comprises: the left pressing adjusting block (701), the left driving rod (702), the left rotating rod (703), the left driven rod (704), the left rotating pin (705), the left positioning pin (706) and the left lower adjusting block (707); one end of the left pressing adjusting block (701) is fixedly connected with the left end of the middle connecting rod (9), the upper end of the left driving rod (702) is hinged to the left end of the middle connecting rod (9), the lower end of the left driving rod (702) is rotatably connected with one end of a left rotating rod (703), and the other end of the left rotating rod (703) is rotatably connected with the upper end of a left driven rod (704); the middle of the left rotating rod (703) is fixed on the inner wall of the left supporting arm (2) through a left rotating pin (705); the lower end of the left driven rod (704) is hinged to a left lower adjusting block (707), and a left positioning pin (706) is fixedly mounted at the bottom of the left lower adjusting block (707).

4. A display stand according to claim 1, characterised in that the right locking means (8) comprises: the device comprises a right pressing adjusting block (801), a right driving rod (802), a right rotating rod (803), a right driven rod (804), a right rotating pin (805), a right positioning pin (806) and a right lower adjusting block (807); one end of the right pressing adjusting block (801) is fixedly connected with the right end of the middle connecting rod (9), the upper end of the right driving rod (802) is hinged to the right end of the middle connecting rod (9), the lower end of the right driving rod (802) is rotatably connected with one end of the right rotating rod (803), and the other end of the right rotating rod (803) is rotatably connected with the upper end of the right driven rod (804); the middle of the right rotating rod (803) is fixed on the inner wall of the right supporting arm (3) through a right rotating pin (805); the lower end of the right driven rod (804) is hinged to a right lower adjusting block (807), and a right positioning pin (806) is fixedly mounted at the bottom of the right lower adjusting block (807).

5. A monitor support according to claim 1, wherein the upper surfaces of the upper ends of the left support arm (2) and the right support arm (3) are respectively provided with a left arm upper chute (201) and a right arm upper chute (301); the upper ends of the right side surface of the left supporting arm (2) and the left side surface of the right supporting arm (3) are respectively provided with a left arm side sliding chute (202) and a right arm side sliding chute (302); two ends of the middle connecting rod (9) respectively penetrate into the left supporting arm (2) and the right supporting arm through a left arm side sliding groove (202) and a right arm side sliding groove (302) and are respectively connected with a left locking device (7) and a right locking device (8); the left side of left locking device (7) and right locking device (8) presses regulating block (701) and the right side presses the end of pressing of regulating block (801) and stretches out and can follow left arm upper chute (201) and right arm upper chute (301) and slide from top to bottom by left arm upper chute (201) and right arm upper chute (301) respectively.

6. A monitor support according to claim 5, characterized in that the upper surface of the upper end of the left support arm (2) and the right support arm (3) is further provided with a left arm lower chute (203) and a right arm lower chute (303); and a left lower adjusting block (707) and a right lower adjusting block (807) of the left locking device (7) and the right locking device (8) respectively extend out of the left arm lower sliding groove (203) and the right arm lower sliding groove (303) and can slide up and down along the left arm lower sliding groove (203) and the right arm lower sliding groove (303).

7. The display bracket according to claim 6, wherein springs (14) are arranged in the left arm upper sliding groove (201), the right arm upper sliding groove (301), the left arm lower sliding groove (203) and the right arm lower sliding groove (303), the top ends of the springs (14) are respectively pressed by a left pressing adjusting block (701), a right pressing adjusting block (801), a left lower adjusting block (707) and a right lower adjusting block (807), and the bottom ends of the springs are positioned by a spring base (15).

8. A monitor support according to claim 7, wherein the left fixing hinge (4) and the right fixing hinge (5) are respectively provided with a left positioning hole (16) and a right positioning hole (17), and a left positioning pin (706) and a right positioning pin (806) at the bottom of the left lower adjusting block (707) and the right lower adjusting block (807) are matched with the left positioning hole (16) and the right positioning hole (17) under the pressure of the spring (14) in a natural state.