CN110913619B

CN110913619B - Angle bead mechanism and display screen

Info

Publication number: CN110913619B
Application number: CN201910729721.9A
Authority: CN
Inventors: 刘欣欣; 颜小平; 李大政; 李学昂
Original assignee: Shenzhen Eastar Electronic Co ltd
Current assignee: Shenzhen Eastar Electronic Co ltd
Priority date: 2019-08-08
Filing date: 2019-08-08
Publication date: 2021-07-20
Anticipated expiration: 2039-08-08
Also published as: CN110913619A

Abstract

The application relates to a corner protection mechanism and a display screen. The angle protection mechanism comprises a seat body and an angle protection body, wherein the seat body is provided with a first abutting surface and a second abutting surface, the seat body is also provided with a first spiral surface, and the first spiral surface respectively extends to the first abutting surface and the second abutting surface; the corner protector body comprises a corner protector body and a rotating part connected to one side of the corner protector body, a first boss and a second boss are arranged at the end part of the rotating part, which is adjacent to the base body, a second spiral surface is also arranged at the end part of the rotating part, which is adjacent to the base body, and the second spiral surface extends to the first boss and the second boss respectively; foretell angle bead mechanism of display screen connects all the time in the holding tank of box in the use, no matter whether use the display screen to splice promptly and use, angle bead mechanism all need not to dismantle, only need adjust the relative angular position of pedestal and angle bead body can, solved the relatively poor and easy problem of losing of the convenient to use nature of traditional plastic angle bead.

Description

Angle bead mechanism and display screen

Technical Field

The application relates to the technical field of display equipment, in particular to a corner protection mechanism and a display screen.

Background

Because the display screen bight bumps easily and leads to damaging in links such as transportation, storage, adopts the plastic angle bead to install in the bight of display screen in order to protect the display screen, installs corresponding plastic angle bead respectively in four bights of display screen promptly. When a plurality of display screens are needed to be spliced and displayed, the plastic corner protector needs to be taken down for additional placement, and the adjacent two display screens are reliably spliced. When the display screen is not needed for displaying, the plastic corner protector is arranged at the corner of the display screen. Therefore, the plastic corner protector needs to be repeatedly disassembled and assembled in the using process of the display screen, so that the plastic corner protector is poor in use convenience. In addition, the plastic corner protector is easy to lose in the high-frequency disassembly and assembly process.

Disclosure of Invention

Therefore, it is necessary to provide a corner protection mechanism and a display screen to solve the problems of poor convenience and easy loss of the conventional plastic corner protector.

A corner guard mechanism comprising:

the seat body is provided with a first abutting surface and a second abutting surface, and is also provided with a first spiral surface which extends to the first abutting surface and the second abutting surface respectively;

the corner protector comprises a corner protector body and a rotating part connected to one side of the corner protector body, wherein a first boss and a second boss are arranged at the end part, close to the seat body, of the rotating part, the distance between the first boss and the axial end part of the rotating part is larger than the distance between the second boss and the axial end part of the rotating part, a second spiral surface is further arranged at the end part, close to the seat body, of the rotating part, the second spiral surface extends to the first boss and the second boss respectively, the rotating part is rotatably connected with the seat body, and the rotating part is elastically abutted to the seat body; the distance between the first abutting surface and the axial end of the rotating part is smaller than the distance between the second abutting surface and the axial end of the rotating part; the axial end part of the rotating part is the end part of the rotating part connected with the corner protector body;

when the first boss abuts against the first abutting surface, a distance exists between the second boss and the second abutting surface; when the first boss abuts against the second abutting surface, the second boss abuts against the first abutting surface.

In one embodiment, the first spiral surface includes a first spiral unit surface and a second spiral unit surface which are connected, the first spiral unit surface extends to the first abutting surface, the second spiral unit surface extends to the second abutting surface, the first abutting surface is connected with the second abutting surface through the first spiral unit surface and the second spiral unit surface in sequence, so that the first boss slides from the first abutting surface to the second abutting surface through the first spiral unit surface and the second spiral unit surface in sequence, or slides from the second abutting surface to the first abutting surface through the second spiral unit surface and the first spiral unit surface in sequence, and therefore sliding of the first boss between the first abutting surface and the second abutting surface is more stable.

In one embodiment, the first spiral surface further includes a first plane, and the first plane is connected to the first spiral unit surface and the second spiral unit surface respectively, so that the first spiral unit surface and the second spiral unit surface are connected and transited through the first plane, and the first spiral unit surface and the second spiral surface are prevented from being directly connected to form a too sharp junction, so that the seat body and the rotating portion are prevented from generating large vibration during rotation.

In one embodiment, the second spiral surface comprises a third spiral unit surface and a fourth spiral unit surface which are connected, the third spiral unit surface extends to the first boss, the fourth spiral unit surface extends to the second boss, the first boss is connected with the second boss sequentially through the third spiral unit surface and the fourth spiral unit surface, and therefore the second spiral surface is gentle, and rotation between the base body and the rotating portion is more stable.

In one embodiment, the second spiral surface further includes a second plane, and the second plane is connected to the third spiral unit surface and the fourth spiral unit surface, so that the third spiral unit surface and the fourth spiral unit surface are connected and transited through the second plane, and an excessively sharp joint formed by directly connecting the third spiral unit surface and the fourth spiral surface is avoided, so that the seat body and the rotating portion are prevented from generating large vibration during rotation.

In one embodiment, the corner protection mechanism further includes a connecting rod, the base body is provided with a sliding hole, the connecting rod is inserted into the sliding hole and is rotatably connected with the base body, and the rotating portion is connected with one end of the connecting rod.

In one embodiment, the corner protection mechanism further includes an elastic member, the elastic member is sleeved on the connecting rod, and two ends of the elastic member are respectively abutted against the seat body and the other end of the connecting rod, so that the rotating portion is elastically abutted against the seat body.

In one embodiment, the seat body is provided with a groove, the first spiral surface is arranged around the groove, the end part of the rotating part, which is adjacent to the seat body, is provided with a rotating protrusion, the second spiral surface is arranged around the rotating protrusion, and the rotating protrusion is positioned in the groove and is rotationally connected with the seat body, so that the rotation between the seat body and the rotating part is more stable; the elastic piece is abutted against the rotating bulge, so that the elastic piece is abutted against the rotating part.

A display screen comprises a box body and the corner protection mechanism in any one of the embodiments, wherein a containing groove is formed at the corner of the box body, and a seat body is positioned in the containing groove and connected with the box body;

when the first lug boss abuts against the first abutting surface, the corner protection body part is positioned outside the accommodating groove and abuts against the corner edge of the box body;

when the first boss abuts against the second abutting surface, the corner protector body is completely positioned in the accommodating groove.

In one embodiment, a rib structure is arranged on one side of the corner protection body, which is adjacent to the rotating part; when the first boss is abutted to the first abutting surface, the convex rib structure is abutted to the edge of the corner of the box body, so that the situation that the whole corner protecting surface of the corner protecting body abuts to the side surface of the box body frame to cause the corner protecting body to touch the display surface of the display screen or even damage the display surface is avoided.

In the corner protection mechanism and the display screen, the seat body can be connected in the accommodating groove at the corner part of the box body; because the distance between the first abutting surface and the axial end part of the rotating part is smaller than the distance between the second abutting surface and the axial end part of the rotating part, namely the first abutting surface and the second abutting surface are positioned at different height positions of the seat body, and because the first abutting surface and the second abutting surface and the first spiral surface respectively extend to the first abutting surface and the second abutting surface, the first abutting surface is connected to the second abutting surface through the first spiral surface; because the distance between the first boss and the axial end part of the rotating part is greater than the distance between the second boss and the axial end part of the rotating part, namely the first boss and the second boss are respectively positioned at different height positions of the rotating part; when the first boss abuts against the first abutting surface, a distance exists between the second boss and the second abutting surface, namely the second boss and the second abutting surface are in a non-abutting state, and the distance between the end part of the seat body far away from the rotating part and the axial end part of the rotating part is the largest at the moment; when the first boss is abutted against the second abutting surface, the second boss is abutted against the first abutting surface, and the distance between the end part of the seat body far away from the rotating part and the axial end part of the rotating part is the minimum at the moment; the rotation part is rotatably connected with the base body, and the rotation part is elastically abutted against the base body, so that the base body is elastically rotatably connected with the rotation part, the first boss can be reliably abutted against the first abutting surface or the second abutting surface, the second spiral surface respectively extends to the first boss and the second boss, when the first boss is adjusted from the position abutted against the second abutting surface to the position abutted against the first abutting surface, the corner protector body is rotated along the first direction to drive the rotation part to rotate relative to the base body, the first boss can slide to the first abutting surface from the second abutting surface through the first spiral surface until the corner protector body is partially positioned outside the accommodating groove and abutted against the corner edge of the box body, and the corner protector body is in a protection state at the moment, so that the corner protector body can protect the display screen; conversely, when the first boss is adjusted to be abutted to the position of the second abutting surface from the first abutting surface, the angle bead body is rotated along a second direction opposite to the first direction to drive the rotating part to rotate relative to the base body, the first boss can slide to the second abutting surface from the first abutting surface through the first spiral surface until the angle bead body is completely positioned in the accommodating groove, and at the moment, the angle bead body is in a shadow hiding state, so that the angle bead mechanism is completely accommodated in the accommodating groove without influencing splicing among display screens; foretell angle bead mechanism of display screen connects all the time in the holding tank of box in the use, no matter whether use the display screen to splice promptly and use, angle bead mechanism all need not to dismantle, only need adjust the relative angular position of pedestal and angle bead body can, solved the relatively poor and easy problem of losing of the convenient to use nature of traditional plastic angle bead.

Drawings

FIG. 1 is a schematic view of a corner protection mechanism of a display screen horizontally mounted in a cabinet according to an embodiment;

FIG. 2 is a schematic view of another embodiment of a corner protection mechanism of a display screen vertically mounted to a cabinet;

FIG. 3 is a schematic view of the corner protection mechanism of the display screen of FIG. 2 in a shadow-hidden state;

FIG. 4 is a partial schematic view of the display screen of FIG. 3;

FIG. 5 is a schematic view of the corner guard mechanism of the display screen of FIG. 2 in a protected state;

FIG. 6 is a partial schematic view of the display screen of FIG. 5;

FIG. 7 is a schematic view of a corner guard mechanism of the display screen of FIG. 5;

FIG. 8 is a schematic view of a housing of the corner protection mechanism shown in FIG. 7;

FIG. 9 is a schematic view of a corner guard body of the corner guard mechanism of FIG. 7;

FIG. 10 is a schematic view of a corner guard mechanism of the display screen of FIG. 3;

fig. 11 is an exploded view of the corner guard mechanism of fig. 10;

FIG. 12 is a cross-sectional view of the corner guard mechanism shown in FIG. 10;

fig. 13 is an exploded view of the display screen of fig. 5.

Detailed Description

To facilitate an understanding of the present application, the corner guard mechanism and display screen will be described more fully below with reference to the associated drawings. Preferred embodiments of the corner guard mechanism and display screen are shown in the accompanying drawings. However, the corner guard mechanism and display screen may be implemented in many different forms and are not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the corner guard mechanisms and display screens is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

One embodiment is that, a corner protection mechanism includes a seat body and a corner protection body, the seat body is provided with a first abutting surface and a second abutting surface, the seat body is further provided with a first spiral surface, and the first spiral surface extends to the first abutting surface and the second abutting surface respectively; the corner protector body comprises a corner protector body and a rotating part connected to one side of the corner protector body, a first boss and a second boss are arranged at the end part, close to the seat body, of the rotating part, the distance between the first boss and the axial end part of the rotating part is larger than the distance between the second boss and the axial end part of the rotating part, a second spiral surface is further arranged at the end part, close to the seat body, of the rotating part, the second spiral surface extends to the first boss and the second boss respectively, the rotating part is rotatably connected with the seat body, and the rotating part is elastically abutted to the seat body; the distance between the first abutting surface and the axial end of the rotating part is smaller than the distance between the second abutting surface and the axial end of the rotating part; the axial end part of the rotating part is the end part of the rotating part connected with the corner protector body; when the first boss abuts against the first abutting surface, a distance exists between the second boss and the second abutting surface; when the first boss abuts against the second abutting surface, the second boss abuts against the first abutting surface.

As shown in fig. 1 and 2, the display screen 10 of an embodiment includes a box 100 and a corner protection mechanism 200. The corner of the box 100 is formed with a receiving groove 110, and the corner guard 200 is positioned in the receiving groove 110 and connected to the box 100. In this embodiment, the display screen 10 further includes a display panel 300, the receiving groove 110 is opened on a side of the frame of the box 100 away from the display panel 300, and the corner protection mechanism 200 is connected to the frame. In one embodiment, the cross section of the accommodating groove is L-shaped, namely the accommodating groove is provided with two inner walls which are perpendicular to each other, and the corner protection mechanism is connected to one of the inner walls, so that the corner protection mechanism is installed on the horizontal surface of the box body, or the corner protection mechanism is installed on the vertical surface of the box body. As shown in fig. 3 and 4, specifically, the number of the corner protection mechanisms 200 is four, the receiving grooves 110 are formed at four corners of the frame, and the four corner protection mechanisms 200 are respectively connected in the corresponding receiving grooves 110, so that the corner protection mechanisms 200 are arranged at the four corners of the frame, and the problem that the corners of the display panel 300 are easily collided or even damaged when the display screen 10 is not spliced in a use state is avoided.

As shown in fig. 5 and 7, in one embodiment, the corner protection mechanism 200 includes a base 210 and a corner protection body 220. As shown in fig. 8, the base 210 has a first abutting surface 211 and a second abutting surface 213. The base 210 further has a first spiral surface 212, and the first spiral surface 212 extends to the first abutting surface 211 and the second abutting surface 213 respectively, so that the first abutting surface 211 is connected to the second abutting surface 213 through the first spiral surface 212.

In one embodiment, the number of the first spiral surfaces 212 is two, and any one of the first spiral surfaces 212 is located between the first abutting surface 211 and the second abutting surface 213, so that the two first spiral surfaces 212 are symmetrically disposed on the base body 210, and thus the first boss can slide from the first abutting surface 211 to the second abutting surface 213 through any one of the first spiral surfaces 212, thereby improving the convenience of the corner protection mechanism 200. In this embodiment, the two first spiral surfaces 212 are connected to the first abutting surface 211, so that the base 210 forms a first groove 210a, wherein the first abutting surface 211 is a bottom of the first groove 210 a. The two first spiral surfaces 212 are connected to the second abutting surface 213, so that the base 210 further forms a second groove 210b, wherein the second abutting surface 213 is a bottom of the second groove 210 b. The first abutting surface 211, the second abutting surface 213 and the two first spiral surfaces 212 are disposed on the end surface of the seat body 210 adjacent to the rotating portion, and the first abutting surface 211, the second abutting surface 213 and the two first spiral surfaces 212 together form a spiral structure surface of the seat body 210.

As shown in fig. 8, in the present embodiment, the seat 210 is located in the receiving groove 110 and connected to the frame. In one embodiment, the base 210 is formed with a through hole 215. Referring to fig. 4, the display screen 10 further includes a fixing member 400, the frame is provided with a threaded hole (not shown) communicated with the accommodating groove 110, and the fixing member 400 is respectively inserted into the through hole 215 and the threaded hole, so that the base 210 is fixedly connected to the frame. In this embodiment, the sidewall of the seat body 210 is formed with a lug structure 216, and the through hole 215 is opened on the lug structure 216, so that the seat body 210 is conveniently fixed on the frame by the fixing member 400. The fixing member 400 is a screw, and the screw hole is formed on an inner wall of the accommodating groove 110, so that the fixing member 400 is screwed to the frame. It is understood that in other embodiments, the fixing member 400 can be omitted, and the seat 210 can be fixed to the frame by welding or gluing.

As shown in fig. 9, in one embodiment, the corner protector 220 includes a corner protector body 220a and a rotation part 220b connected to one side of the corner protector body 220 a. The rotating portion 220b is rotatably connected to the base 210, and the rotating portion 220b is elastically abutted against the base 210, so that the rotating portion 220b is elastically rotatably connected to the base 210. In this embodiment, the direction in which the rotating portion 220b elastically abuts against the seat body 210 is perpendicular to the plane in which the rotating direction of the rotating portion 220b is located. In an embodiment, the cross section of the corner protecting body 220a is L-shaped, that is, the corner protecting body 220a has two perpendicular protecting walls, so that when the corner protecting body 220a rotates to a position abutting against the frame relative to the base 210, the corner protecting body 220a can abut against two adjacent side surfaces of the frame, respectively, so that the corner protecting body 220a can better protect the display panel 300. In one embodiment, the rotating portion 220b is connected to a side of the corner protecting body 220a adjacent to the frame, that is, the rotating portion 220b is connected to a side of a protecting wall of the corner protecting body 220a, so that the rotating portion 220b is better accommodated in the accommodating groove 110.

As shown in fig. 9, in one embodiment, the end of the rotating part 220b adjacent to the holder body 210 is provided with a first boss 221 and a second boss 222. The distance between the first boss 221 and the axial end of the rotating portion 220b is greater than the distance between the second boss 222 and the axial end of the rotating portion 220b, that is, the first boss 221 and the second boss 222 are respectively located at different height positions of the rotating portion 220 b. In the present embodiment, the axial end of the rotating portion 220b is the end of the rotating portion connected to the corner protector body. In one embodiment, the end of the rotating part 220b adjacent to the holder body 210 is further provided with a second spiral surface 223, and the second spiral surface 223 extends to the first boss 221 and the second boss 222 respectively. When the rotating portion 220b rotates relative to the seat body 210, the first boss 221 slides between the first abutting surface 211 and the second abutting surface 213, and since the rotating portion 220b elastically abuts against the seat body 210, the relative position of the rotating portion 220b in the axial direction of the rotation during the rotation process relative to the seat body 210 changes, so that the first boss 221 slides from the first abutting surface 211 to the second abutting surface 213, or from the second abutting surface 213 to the first abutting surface 211, and simultaneously the first spiral surface 212 slides relative to the second spiral surface 223, so that the rotational connection between the rotating portion 220b and the rotating portion 220b is more stable.

In one embodiment, the number of the second spiral surfaces 223 is two, and any one of the second spiral surfaces 223 is located between the first bosses 221 and the second bosses 222, so that the two second spiral surfaces 223 are symmetrically disposed on the seat body 210. Thus, the angle adjustment flexibility and the convenience of use of the angle guard mechanism 200 are improved by sliding from the first abutting surface 211 to the second abutting surface 213 through rotation in the first direction or the second direction, or sliding from the second abutting surface 213 to the first abutting surface 211 through rotation in the first direction or the second direction. In this embodiment, the first boss 221, the second boss 222 and the two second spiral surfaces 223 are disposed on the end surface of the rotating portion 220b adjacent to the seat body 210, and the first boss 221, the second boss 222 and the two second spiral surfaces 223 jointly form a spiral structure surface of the rotating portion 220 b.

In one embodiment, the distance between the first abutting surface 211 and the axial end of the rotating portion 220b is smaller than the distance between the second abutting surface 213 and the axial end of the rotating portion 220b, that is, the first abutting surface 211 and the second abutting surface 213 are located at different height positions of the seat body 210. As shown in fig. 7 to 9, in one embodiment, when the first boss 221 abuts against the first abutting surface 211, there is a distance between the second boss 222 and the second abutting surface 213, that is, the second boss 222 and the second abutting surface 213 are in an un-abutting state, and at this time, a distance between an end of the seat body 210 far from the rotating portion 220b and an axial end of the rotating portion 220b is the largest. In one embodiment, when the first protrusion 221 abuts against the first abutment surface 211, the corner protection body 220a is partially located outside the receiving groove 110 and abuts against the corner edge of the box 100.

As shown in fig. 8 to 10, in one embodiment, when the first boss 221 abuts against the second abutting surface 213, the second boss 222 abuts against the first abutting surface 211, and at this time, the distance between the end of the seat body 210 far away from the rotating portion 220b and the axial end of the rotating portion 220b is the smallest. In one embodiment, when the first protrusion 221 abuts against the second abutting surface 213, the corner protection body 220a is completely located in the receiving groove 110.

In the corner protection mechanism 200 and the display panel 10, the base 210 can be connected to the receiving groove 110 at the corner of the box 100. Since the second spiral surfaces 223 extend to the first bosses 221 and the second bosses 222, when the first bosses 221 are adjusted from the positions abutting against the second abutting surfaces 213 to the positions abutting against the first abutting surfaces 211, referring to fig. 2, the corner protector body 220a is rotated in the first direction to drive the rotating parts 220b to rotate relative to the base 210, so that the corner protector body 220a rotates 180 ° relative to the base 210 in the first direction, and the first bosses 221 can slide from the second abutting surfaces 213 to the first abutting surfaces 211 through the first spiral surfaces 212 until the corner protector body 220a is partially located outside the receiving grooves 110 and abuts against the corner edges of the box 100, as shown in fig. 6, that is, the corner protector body 220a abuts against the corner edges of the box 100, and at this time, the corner protector body 220a is in a protection state, so that the corner protector body 220a protects the display screen 10.

Conversely, when the first protrusion 221 is adjusted from abutting against the first abutting surface 211 to abutting against the second abutting surface 213, referring to fig. 2, the corner protector body 220a is rotated in a second direction opposite to the first direction to drive the rotating portion 220b to rotate relative to the base 210, so that the corner protector body 220a rotates 180 ° relative to the base 210 in the second direction, and the first protrusion 221 can slide from the first abutting surface 211 to the second abutting surface 213 through the first spiral surface 212 until the corner protector body 220a is completely located in the accommodating slot 110, at this time, the corner protector body 220a is in a shadow-hidden state, as shown in fig. 4, so that the corner protector 200 is completely accommodated in the accommodating slot 110 without affecting the splicing between the cases 100 of the display screen 10.

Foretell corner protector mechanism 200 of display screen 10 connects all the time in the holding tank 110 of box 100 in the use, no matter whether use display screen 10 to splice the use promptly, corner protector mechanism 200 all need not to dismantle, only need adjust the relative angular position of pedestal 210 and corner protector body 220a can, solved the relatively poor and easy problem of losing of the convenient to use nature of traditional plastic corner protector.

As shown in fig. 7 and 8, in one embodiment, the corner guard mechanism 200 further includes a connecting rod 230. The base 210 has a sliding hole 217, and the connecting rod 230 is inserted into the sliding hole 217 and rotatably connected to the base 210. The rotating part 220b is connected to one end of the connecting rod 230, so that the rotating part 220b is rotatably connected to the seat body 210.

As shown in fig. 11, in one embodiment, the corner protection mechanism 200 further includes an elastic member 240, the elastic member 240 is sleeved on the connecting rod 230, and two ends of the elastic member 240 respectively abut against the other ends of the seat 210 and the connecting rod 230, so that the rotating portion 220b elastically abuts against the seat 210. In this embodiment, the seat body is also slidable relative to the connecting rod in the axial direction of the connecting rod. The elastic member 240 is a coil spring. In other embodiments, the elastic member 240 may also be an elastic rubber sleeve.

As shown in fig. 11, in one embodiment, the connecting rod 230 includes a rod 231 and a rod head 233 connected together, the diameter of the cross section of the rod 231 is smaller than that of the cross section of the rod head 233, and the elastic member 240 is sleeved on the rod 231 and abuts against the rod head 233, so that the elastic member 240 reliably abuts against the connecting rod 230. In this embodiment, the cross-sectional diameter of the head is also larger than the cross-sectional diameter of the elastic member. Referring to fig. 12 and 13, in one embodiment, a positioning groove 218 communicating with the sliding hole 217 is formed on a side of the seat body 210 away from the rotating portion 220b, and the elastic member 240 is located in the positioning groove 218 and abuts against the seat body 210, so that the elastic member 240 abuts against the seat body 210 better. In this embodiment, the base 210 is respectively provided with a sliding hole 217 and a positioning groove 218, so that the base 210 is formed with a stepped circular tube structure, so as to facilitate the installation of the connecting rod 230 and the elastic element 240.

As shown in fig. 12, in an embodiment, one end of the elastic element 240 abuts against an end of the connecting rod 230 far away from the rotating portion 220b, and the other end abuts against a side of the seat body 210 far away from the rotating portion 220b, that is, the elastic element is not located between the rotating portion 220b and the seat body 210, so as to avoid interference of the elastic element 240 on rotation of the rotating portion 220 b. It is understood that in other embodiments, the elastic element 240 may also be located between the rotating portion 220b and the seat body 210. In one embodiment, the elastic element 240 is sleeved on the connecting rod 230, and two ends of the elastic element 240 respectively abut against the rotating portion 220b and the base 210.

As shown in fig. 12, in one embodiment, the rotating portion 220b is detachably connected to the connecting rod 230, so that the corner protection mechanism 200 can be disassembled and maintained, and the convenience of use of the corner protection mechanism 200 is improved. In one embodiment, the corner protection mechanism 200 further comprises a locking member 250, and the corner protection body 220a is provided with a first mounting hole 224. The rotating portion 220b is provided with a second mounting hole 225 communicated with the first mounting hole 224, the end portion of the connecting rod 230 adjacent to the rotating portion 220b is provided with a screwing hole 235, the locking member 250 is respectively arranged through the first mounting hole 224 and the second mounting hole 225, and the locking member 250 is partially positioned in the screwing hole 235 and screwed with the connecting rod 230. When the maintenance convenience of the corner protection mechanism 200 is not considered, for example, the corner protection mechanism 200 is a maintenance-free mechanism, in other embodiments, the rotating portion 220b and the connecting rod 230 may be a non-detachable connecting structure. In one embodiment, the rotating portion 220b is connected to the connecting rod 230 by means of gluing or welding.

As shown in fig. 12, in one embodiment, the rotating portion 220b is further formed with a fixing hole 226 communicating with the second mounting hole 225, and the connecting rod 230 is partially positioned in the fixing hole 226 and connected to the rotating portion 220b, so that the connecting rod 230 is better connected to the rotating portion 220 b. In this embodiment, since the rotating portion 220b is formed with the fixing hole 226 and the second mounting hole 225, and the corner protector body 220a is formed with the first mounting hole 224, the corner protector body 220 forms a stepped hole structure, so that the connecting rod 230 is better fixed on the corner protector body 220. In order to prevent the connecting rod 230 from rotating relative to the rotating portion 220b, in one embodiment, the fixing hole 226 is a flat circular hole, and the end of the connecting rod 230 that is engaged with the fixing hole 226 is provided with a rotation stop surface 234 to prevent the connecting rod 230 from rotating relative to the rotating portion 220b, so that the connecting rod 230 is reliably positioned in the fixing hole 226. In the present embodiment, the fixing hole 226 is located at the center position of the spiral structure surface of the rotating portion 220 b.

In the present embodiment, the corner protection mechanism 200 includes a corner protection body 220, a seat body 210, a connecting rod 230, an elastic member 240, and a locking member 250. Because the angle bead mechanism 200 comprises five small parts, namely the angle bead body 220, the seat body 210, the connecting rod 230, the elastic part 240 and the locking part 250, the structures of the parts are simple, the volume is small, and the cost is very low. During assembly, firstly, the spring is sleeved into the connecting rod 230, then the connecting rod 230 is inserted from the bottom of the seat body 210, then the connecting rod 230 is installed in the installation hole of the corner protector 220, then the locking member 250 is screwed into the top of the corner protector 220, and finally the seat body 210 is installed in the threaded hole of the accommodating groove 110, so that the assembly of the corner protector mechanism 200 is rapid and convenient.

Of course, in other embodiments, the elastic member 240 may be omitted. In one embodiment, the rotating portion 220b is an elastic gel structure, so that the rotating portion 220b has a certain elastic deformation amount and is always elastically abutted against the seat body 210 in the rotating process relative to the seat body 210. Or, the corner protector 220 is an elastic colloid structure, which not only makes the rotating part 220b elastically abut against the seat body 210 all the time in the rotating process relative to the seat body 210, but also makes the corner protector 220 have better buffering performance in the abutting process against the protection frame. Or, the base 210 is an elastic colloid structure, so that the rotating portion 220b is always elastically abutted in the rotating process relative to the base 210.

In one embodiment, the first abutting surface 211 and the second abutting surface 213 are parallel to each other. In other embodiments, the first abutting surface 211 and the second abutting surface 213 are not limited to being parallel to each other. In one embodiment, the first boss 221 is parallel to the second boss 222. In other embodiments, the first and

second bosses

221, 222 are not limited to being parallel to each other.

As shown in fig. 8, in one embodiment, the first spiral surface 212 includes a first spiral unit surface 212a and a second spiral unit surface 212b connected, the first spiral unit surface 212a extends to the first abutment surface 211, the second spiral unit surface 212b extends to the second abutment surface 213, the first abutment surface 211 is connected to the second abutment surface 213 via the first spiral unit surface 212a and the second spiral unit surface 212b in sequence, so that the first boss 221 slides from the first abutment surface 211 to the second abutment surface 213 via the first spiral unit surface 212a and the second spiral unit surface 212b in sequence, or slides from the second abutment surface 213 to the first abutment surface 211 via the second spiral unit surface 212b and the first spiral unit surface 212a in sequence, thereby making the sliding of the first boss 221 between the first abutment surface 211 and the second abutment surface 213 more smooth.

As shown in fig. 8, in one embodiment, the first spiral surface 212 further includes a first plane 212c, and the first plane 212c is respectively connected to the first spiral unit surface 212a and the second spiral unit surface 212b, so that the first spiral unit surface 212a and the second spiral unit surface 212b are connected and transited through the first plane 212c, and the first spiral unit surface 212a and the second spiral surface 223 are prevented from being directly connected to form an excessively sharp junction, so as to prevent the seat body 210 and the rotating portion 220b from generating large vibration during rotation.

In the present embodiment, the first spiral unit surfaces 212a of the two symmetrically disposed first spiral surfaces 212 extend to the first abutting surface 211, forming a first groove 210a structure. When the first boss 221 abuts against the first abutting surface 211, there is a distance between the second boss 222 and the second abutting surface 213, that is, the second boss 222 and the second abutting surface 213 are in an un-abutting state, and at this time, the distance between the end of the base 210 away from the rotating portion 220b and the axial end of the rotating portion 220b is the largest. It is defined that the first spiral unit surface 212a is a high point spiral surface, and the first contact surface 211 is a high point plane.

The second spiral unit surfaces 212b of the two symmetrically arranged first spiral surfaces 212 extend to the second abutting surfaces 213, forming a second groove 210b structure. When the first boss 221 abuts against the second abutment surface 213, the second boss 222 abuts against the first abutment surface 211, and at this time, the distance between the end of the seat body 210 far from the rotating portion 220b and the axial end of the rotating portion 220b is the smallest. It is defined that the second spiral unit surface 212b is a low point spiral surface, and the second contact surface 213 is a low point plane.

As shown in fig. 9, in one embodiment, the second spiral surface 223 includes a third spiral unit surface 223a and a fourth spiral unit surface 223b connected to each other. The third screw unit surface 223a extends to the first boss 221. The fourth screw unit surface 223b extends to the second boss 222, so that the first boss 221 is connected with the second boss 222 sequentially through the third screw unit surface 223a and the fourth screw unit surface 223b, and the second screw surface 223 is relatively gentle, so that the rotation between the seat body 210 and the rotating part 220b is more stable.

As shown in fig. 9, in one embodiment, the second spiral surface 223 further includes a second plane 223c, and the second plane 223c is respectively connected to the third spiral unit surface 223a and the fourth spiral unit surface 223b, so that the third spiral unit surface 223a and the fourth spiral unit surface 223b are connected and transited through the second plane 223c, and the third spiral unit surface 223a and the fourth spiral surface are prevented from being directly connected to form an excessively sharp junction, so as to prevent the seat body 210 and the rotating part 220b from generating large vibration during the rotation process.

In this embodiment, a third helicoid of the two symmetrically disposed second helicoids 223 extends to the first boss 221. A fourth of the two symmetrically arranged second helicoids 223 extends to the second boss 222. The spiral surface of the rotating portion 220b has a high-stage position and a low-stage position. Wherein the first boss 221 and the two third helicoids together form a high-platform position, and the second boss 222 and the two fourth helicoids together form a low-platform position. In one embodiment, the distance between the first boss 221 and the axial end of the rotating portion 220b is a first distance, the distance between the second boss 222 and the axial end of the rotating portion 220b is a second distance, and the distance between the first distance and the second distance is 3mm to 10mm, so that a height difference exists between the high platform position and the low platform position.

As shown in fig. 8, in one embodiment, the base 210 has an avoiding groove 219 communicated with the sliding hole 217, and the first spiral surface 212 is disposed around the avoiding groove 219. Referring to fig. 9, the end of the rotating portion 220b adjacent to the holder body 210 is provided with a rotating protrusion 229. The second spiral surface 223 is disposed around the rotation protrusions 229. The rotation protrusions 229 are disposed in the avoiding grooves 219 and rotatably connected to the seat body 210, so that the rotation between the seat body 210 and the rotation portion 220b is more stable. Because the seat body 210 is provided with the avoiding groove 219 to avoid the rotating protrusion 229, the seat body 210 and the rotating portion 220b can rotate better, and the first spiral surface 212 and the second spiral surface 223 can better fit and slide. In the present embodiment, the avoiding groove 219 is opened at the center of the rotation structure surface of the base 210.

As shown in fig. 9, in one embodiment, a rib structure 227 is provided on a side of the corner guard body 220a adjacent to the rotating portion 220 b. When the first protrusion 221 abuts against the first abutting surface 211, the rib structure 227 abuts against the edge of the corner of the box 100, so as to prevent the whole corner protecting surface of the corner protecting body 220a from abutting against the side surface of the frame of the box 100, which may cause the corner protecting body 220a to touch the display surface of the display screen 10, or even damage the display surface. In this embodiment, the rib structure 227 includes a first support rib and a second support rib, and one end of the first support rib is connected with one end of the second support rib to form the L-shaped rib structure 227. The first support rib and the second support rib respectively support against two vertical side surfaces of the corner of the box body 100.

The principle of adjusting the corner protection mechanism 200 to the protection state is:

the corner protector 220 is pushed forward to rotate the rotating portion 220b relative to the base 210 in the first direction, the corner protector 220 rotates and moves upward along the first spiral surface 212 of the base 210, and at a position close to 180 °, the corner protector 220 is positioned in the first groove 210a under the pulling force of the elastic member 240, so that the corner protector 220 is fixedly abutted against the first abutting surface 211, even if the corner protector 220 is fixed at the first fixing point of the base 210, at this time, the support ribs on the inner walls of the two corner protector walls of the corner protector 220 abut against the two vertical surfaces at the corner of the box 100, that is, the first support rib and the second support rib abut against the two vertical sides at the corner of the box 100. Because one of the corner protecting walls abuts against one of the corners of the box 100, the corner protecting body 220 can not rotate in the first direction any more, but only in the second direction, and the first protrusion 221 is fixed at the first fixing point due to the elastic force of the elastic member 240.

The principle of adjusting the corner protection mechanism 200 to the shadow hiding state is as follows:

the corner protector 220 is pushed reversely to rotate the rotating portion 220b relative to the base 210 along the second direction, the corner protector 220 rotates and moves downward along the first spiral surface 212 of the base 210, and at a position close to 180 °, the corner protector 220 is positioned in the second groove 210b by the pulling force of the elastic member 240, so that the corner protector 220 is fixedly abutted against the second abutting surface 213, even if the corner protector 220 is fixed at the second fixed point of the base 210, meanwhile, when the corner protector 220 continues to rotate along the second direction, the first boss 221 is fixed at the second fixed point due to the inner wall of the accommodating groove 110, the second groove 210b and the elastic member 240.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present application shall be subject to the appended claims.

Claims

1. A corner guard mechanism, comprising:

when the first boss abuts against the first abutting surface, a distance exists between the second boss and the second abutting surface; when the first boss abuts against the second abutting surface, the second boss abuts against the first abutting surface;

the base body is provided with a groove, the first spiral surface is arranged around the groove, a rotating protrusion is arranged at the end part of the rotating part, which is adjacent to the base body, the second spiral surface is arranged around the rotating protrusion, and the rotating protrusion is positioned in the groove and is rotationally connected with the base body.

2. The corner guard mechanism according to claim 1, wherein the first screw surface comprises a first screw unit surface and a second screw unit surface connected, the first screw unit surface extending to the first abutment surface, the second screw unit surface extending to the second abutment surface.

3. The corner guard mechanism according to claim 2, the first spiral surface further comprising a first plane surface connected with the first spiral unit surface and the second spiral unit surface, respectively.

4. The corner guard mechanism according to any one of claims 1 to 3, wherein the second helical surface comprises a third helical unit surface and a fourth helical unit surface connected, the third helical unit surface extending to the first boss and the fourth helical unit surface extending to the second boss.

5. The corner guard mechanism of claim 4, wherein the second helical surface further comprises a second planar surface connected to the third and fourth helical unit surfaces, respectively.

6. The corner protection mechanism according to any one of claims 1 to 3, further comprising a connecting rod, wherein the base body is provided with a sliding hole, the connecting rod is inserted into the sliding hole and slidably connected with the base body, and the rotating portion is connected with one end of the connecting rod.

7. The corner protection mechanism according to claim 6, further comprising an elastic member, wherein the elastic member is sleeved on the connecting rod, and two ends of the elastic member are respectively abutted against the seat body and the other end of the connecting rod.

8. The corner protection mechanism according to any one of claims 1 to 3, further comprising a connecting rod, wherein the base body is provided with a sliding hole, the connecting rod is inserted into the sliding hole and is slidably connected with the base body, and the rotating part is connected with one end of the connecting rod;

the corner protection mechanism further comprises an elastic piece, the elastic piece is sleeved on the connecting rod, one end of the elastic piece abuts against the end portion, far away from the rotating portion, of the connecting rod, and the other end of the elastic piece abuts against the rotating protrusion.

9. A display screen, comprising a box body and the corner protection mechanism of any one of claims 1 to 8, wherein a corner of the box body is formed with a receiving groove, and the seat body is located in the receiving groove and connected with the box body;

10. The display screen of claim 9, wherein a rib structure is arranged on one side of the corner protector body adjacent to the rotating part; when the first boss abuts against the first abutting surface, the rib structure abuts against the corner edge of the box body.