CN220061280U - Opening and closing structure and digital screen - Google Patents

Abstract

The utility model discloses an opening and closing structure and a digital screen, and relates to the technical field of support rotating shafts, wherein the opening and closing structure comprises: the rotating shaft is provided with a first rotation stopping part; the movable assembly comprises a bracket and a cam, wherein the bracket is provided with a mounting groove for mounting the cam, both sides of the mounting groove are respectively provided with a first through hole communicated with the mounting groove, the position of the cam corresponding to the first through hole is provided with a second through hole, the rotating shaft penetrates through the first through hole and the second through hole, at least one first through hole is provided with a second rotation stopping part matched with the first rotation stopping part, and the rotating shaft drives the cam to rotate; an elastic member for abutting against an outer peripheral surface of the cam, the elastic member for providing a pre-compression force to the cam; the installation component, the pivot passes through installation component and is connected with the casing, the pivot can rotate for installation component. The embodiment of the utility model can reduce the abrasion of the bracket and is beneficial to prolonging the service life.

Description

Opening and closing structure and digital screen

Technical Field

The utility model relates to the technical field of support rotating shafts, in particular to an opening and closing structure and a digital screen.

Background

A digital screen is essentially a display device, in particular a special display with a drawing function (electromagnetic induction). In the related art, a support for supporting the digital screen is mainly movably connected with a plastic support and a metal pin, and abrasion is easy to occur between the plastic support and the metal pin, so that the service life is influenced.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model provides the opening and closing structure which can effectively prolong the service life.

The utility model also provides a digital screen with the opening and closing structure.

According to an embodiment of the present utility model, an opening and closing structure includes: the rotating shaft is provided with a first rotation stopping part; the movable assembly comprises a bracket and a cam, wherein the bracket is provided with a mounting groove for mounting the cam, both sides of the mounting groove are respectively provided with a first through hole communicated with the mounting groove, the position of the cam corresponding to the first through hole is provided with a second through hole, the rotating shaft penetrates through the first through hole and the second through hole, at least one first through hole is provided with a second rotation stopping part matched with the first rotation stopping part, and the rotating shaft drives the cam to rotate; an elastic member for abutting against an outer peripheral surface of the cam, the elastic member for providing a pre-compression force to the cam; the installation assembly is connected with the shell through the rotating shaft, and the rotating shaft can rotate relative to the installation assembly.

Further, the first rotation stopping portion is provided with an axially extending rotation stopping groove, the second rotation stopping portion comprises a rotation stopping protrusion, and the rotation stopping protrusion is at least partially inserted into the rotation stopping groove so as to limit the rotation of the support relative to the rotating shaft.

Further, the first rotation stopping portion is further provided with a first rotation stopping surface, the cross section profile of the first rotation stopping surface is a non-circular arc, and the second rotation stopping portion is provided with a second rotation stopping surface matched with the first rotation stopping surface.

Further, the rotation stopping protrusion is disposed opposite to the second rotation stopping surface.

Further, the cross section profile of the mounting groove is non-circular arc, and the cam is provided with a connecting part which is in fit connection with the mounting groove.

Further, the cam is further provided with a damping surface, a first locking surface and a second locking surface, the first locking surface and the second locking surface are respectively positioned at two sides of the circumferential direction of the damping surface, and the elastic part is provided with a working surface which is abutted with the damping surface, the first locking surface and the second locking surface; wherein the position state of the bracket comprises a first state, a second state and a third state;

the working surface is abutted with the first locking surface in the first state;

the working surface is abutted with the second locking surface in the second state;

and in the third state, the working surface is abutted with the damping surface.

Further, the installation component includes a first support piece, a first support piece with the one end of pivot rotates to be connected, a first support piece has the guide ring, the support corresponds the position of guide ring is provided with the guiding hole, the guide ring is at least partly worn to locate the guiding hole.

Further, the material of the rotating shaft and/or the cam and/or the elastic component and/or the mounting component is a metal material.

According to the digital screen, the digital screen comprises the opening and closing structure and further comprises the shell, the installation assembly is connected with the shell, the elastic component is installed on the shell, one end of the elastic component is arranged in a cantilever mode and is abutted to the cam, and the support can rotate relative to the shell.

Further, the shell is further provided with a first connecting hole, the cross section outline of the first connecting hole is at least partially non-circular arc, the digital screen further comprises a first connecting piece and a second connecting piece matched and connected with the first connecting piece, the shape of the first connecting piece is matched with that of the first connecting hole, and the elastic component is fixed on the shell through the first connecting piece and the second connecting piece.

The opening and closing structure and the digital screen have the following advantages: the rotating shaft is connected with the second rotation stopping part of the support in a matched mode through the first rotation stopping part, so that connection between the rotating shaft and the support is achieved, and the rotating shaft cannot rotate relative to the support. Compared with the connection mode of the movable connection of the bracket and the metal pin, the embodiment can reduce the abrasion of the bracket and is beneficial to prolonging the service life. Meanwhile, the contact area of the first rotation stopping part and the second rotation stopping part is larger, so that uniform stress is realized, and the loosening condition between the rotating shaft and the bracket is reduced.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The utility model is further described with reference to the accompanying drawings and examples, in which:

FIG. 1 is a schematic diagram of an overall structure of one embodiment of a digital screen according to an embodiment of the present utility model;

FIG. 2 is an exploded view of a portion of the structure of one embodiment of a digital screen in accordance with an aspect of the present utility model;

FIG. 3 is a schematic view of a back portion of a housing in a digital screen according to an embodiment of the present utility model;

FIG. 4 is a schematic view of an embodiment of an opening/closing structure according to another embodiment of the present utility model;

FIG. 5 is a schematic view of one embodiment of a stand in an open-close structure according to another embodiment of the present utility model;

FIG. 6 is a schematic view of one embodiment of a stand in an open-close structure according to another embodiment of the present utility model;

FIG. 7 is a schematic view of one embodiment of a stand in an open-close structure according to another embodiment of the present utility model;

FIG. 8 is a schematic structural view of one embodiment of a rotating shaft in an opening and closing structure according to another embodiment of the present utility model;

FIG. 9 is a schematic structural view of one embodiment of a rotating shaft in an opening and closing structure according to another embodiment of the present utility model;

FIG. 10 is a schematic view of one embodiment of a cam in an open-close configuration according to another embodiment of the present utility model;

FIG. 11 is a schematic view showing a state of the elastic member, the bracket and the cam engaged in the opening and closing structure according to another embodiment of the present utility model;

FIG. 12 is a schematic view of an embodiment of an elastic member in an open-close structure according to another embodiment of the present utility model;

FIG. 13 is a schematic view of an embodiment of a first support member in an open-close structure according to another embodiment of the present utility model;

FIG. 14 is a schematic view of an embodiment of a second support member in an open-close structure according to another embodiment of the present utility model;

fig. 15 is a schematic structural view of one embodiment of the first connecting member in the opening and closing structure according to another embodiment of the present utility model.

Reference numerals:

100. a housing; 110. a receiving groove; 120. a first connection hole;

200. an opening and closing structure;

210. a rotating shaft; 211. a first portion; 2111. a first mating surface; 212. a second portion; 2121. a rotation stopping groove; 2122. a first rotation stopping surface; 213. a third section; 2131. a second mating surface;

220. a movable assembly; 221. a bracket; 2211. a first through hole; 2212. a mounting groove; 2213. a rotation stopping protrusion; 2214. a second rotation stopping surface; 2215. a guide hole; 222. a cam; 2221. a second through hole; 2222. a third mating surface; 2223. a first locking surface; 2224. a second locking surface; 2225. damping surface; 2226. a fourth mating surface;

230. an elastic member; 231. a working surface; 232. a mounting part;

240. a mounting assembly; 241. a first support; 2411. a first mounting hole; 2412. a guide ring; 2413. a fifth mating surface; 242. a second support; 2421. a second mounting hole;

310. a first connector; 311. a sixth mating surface; 312. and a connecting part.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the description of the present utility model, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present utility model and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, the meaning of a number is one or more, the meaning of a number is two or more, and greater than, less than, exceeding, etc. are understood to exclude the present number, and the meaning of a number is understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.

In the description of the present utility model, the descriptions of the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

A digital screen is essentially a display device, in particular a special display with a drawing function (electromagnetic induction). In the related art, a support for supporting the digital screen is mainly formed by sliding connection of a plastic support and a metal pin, and abrasion is easy to occur between the plastic support and the metal pin, so that the service life is influenced. In addition, in order to increase the damping sense of the rotation of the bracket, a plastic cam is usually arranged to be in movable contact with one end arc surface of the bracket, but the plastic cam rubs with the bracket made of plastic materials, so that the service life is short.

In view of this, the embodiment of the utility model provides an opening and closing structure 200 and a digital screen to effectively solve the foregoing problems.

In another aspect, a digital screen is disclosed, and referring to fig. 1 to 4, the digital screen includes a housing 100 and an opening and closing structure 200, and the opening and closing structure 200 is connected to the housing 100 through a mounting assembly 240.

The embodiment of the utility model discloses an opening and closing structure 200, referring to fig. 4 to 15, the opening and closing structure 200 comprises a rotating shaft 210, a movable component 220, an elastic component 230 and a mounting component 240. Specifically, the rotating shaft 210 is mounted on the housing 100 through the mounting assembly 240, the rotating shaft 210 can rotate relative to the mounting assembly 240 or the housing 100, and the rotating shaft 210 is provided with a first rotation stopping portion; the movable assembly 220 comprises a bracket 221 and a cam 222, the bracket 221 is provided with a mounting groove 2212 for mounting the cam 222, both sides of the mounting groove 2212 are provided with first through holes 2211 communicated with the mounting groove 2212, the position of the cam 222 corresponding to the first through holes 2211 is provided with second through holes 2221, a rotating shaft 210 is arranged through the first through holes 2211 and the second through holes 2221, at least one first through hole 2211 is provided with a second rotation stopping part matched with the first rotation stopping part, and the rotating shaft 210 drives the cam 222 to rotate; the elastic member 230 is used to abut against the outer circumferential surface of the cam 222, and the elastic member 230 is used to provide pre-compression to the cam 222 to increase the damping effect of the rotation of the bracket 221.

In the embodiment of the utility model, the rotating shaft 210 is connected with the second rotation stopping part of the bracket 221 through the first rotation stopping part in a matching way, so that the connection between the rotating shaft 210 and the bracket 221 is realized, the rotating shaft 210 cannot rotate relative to the bracket 221, and compared with the connection mode of movably connecting the bracket 221 and the metal pin, the abrasion of the bracket 221 can be reduced, and the service life is prolonged. Meanwhile, the contact area of the first rotation stopping part and the second rotation stopping part is larger, so that uniform stress is realized, and the loosening condition between the rotating shaft 210 and the bracket 221 is reduced.

In some embodiments of the present utility model, referring to fig. 4 to 8, the first rotation stopping portion has an axially extending rotation stopping groove 2121, and the second rotation stopping portion includes a rotation stopping protrusion 2213, and the rotation stopping protrusion 2213 is at least partially inserted into the rotation stopping groove 2121 to limit rotation of the bracket 221 relative to the rotation shaft 210. Specifically, the rotation shaft 210 includes a first portion 211, a second portion 212, and a third portion 213 that are sequentially connected, and the second portion 212 is provided with a rotation stopping groove 2121. When assembled, the rotating shaft 210 is inserted into the first through hole 2211 of the bracket 221, and the rotation stopping protrusion 2213 is at least partially connected with the rotation stopping groove 2121 in a matching manner. During assembly, the anti-rotation protrusions 2213 and the anti-rotation grooves 2121 can act as guides; after the assembly is completed, the rotation stopping protrusion 2213 is matched with the rotation stopping groove 2121, so that the rotation shaft 210 and the bracket 221 cannot rotate relatively, and the rotation shaft 210 and the bracket 221 are rigidly connected.

In some embodiments of the present utility model, as shown in fig. 4 to 9, the first rotation stopping portion further has a first rotation stopping surface 2122, the cross-sectional profile of the first rotation stopping surface 2122 is non-circular arc, and the second rotation stopping portion has a second rotation stopping surface 2214 matching the first rotation stopping surface 2122. The cross-sectional profile of the first rotation stopping surface 2122 is non-circular, and when the first rotation stopping surface 2122 is connected with the second rotation stopping surface 2214, the first rotation stopping surface 2122 and the second rotation stopping surface 2214 can mutually limit the rotation of the other, so that the rotation moment can be uniformly dispersed to various positions of the rotating shaft 210 or the bracket 221, the damage probability of the rotation stopping protrusion 2213 can be reduced, and the service life of the rotating shaft 210 can be prolonged.

It should be understood that non-circular arc means that the entire contour cannot be rotated about a fixed center by a line segment of the same fixed radius. That is, the non-circular arc can be formed by splicing a plurality of sections of arcs with different radiuses in sequence, or can be formed by splicing a line segment and an arc, and the line segment and the arc can be one section or a plurality of sections respectively. The non-circular arc profile comprises two symmetrically arranged circular arcs, and the two circular arcs are connected through a straight line segment.

In some embodiments of the present utility model, referring to fig. 5, the anti-rotation protrusion 2213 is disposed opposite to the second anti-rotation surface 2214, so as to increase the torque that the bracket 221 can withstand. In this embodiment, the bracket 221 is made of plastic material, and the rotation stop protrusion 2213 and the second rotation stop surface 2214 are disposed opposite to each other, so that the capability of the bracket 221 to bear a rotation moment can be improved, and the deformation of the first through hole 2211 caused by excessive stress can be reduced.

In some embodiments of the utility model, referring to FIG. 6, the cross-sectional profile of the mounting groove 2212 is non-circular, and the cam 222 has a connection portion for mating connection with the mounting groove 2212. Specifically, the rotating shaft 210 is disposed through the second through hole 2221 of the cam 222, and the connecting portion of the cam 222 is matched with the mounting groove 2212, so that the cam 222 cannot rotate relative to the bracket 221. And the elastic member 230 applies a pre-pressure to the cam 222, thereby enhancing the damping effect of the rotation of the bracket 221.

In particular, in the present embodiment, referring to fig. 6 and 10, the bottom surface and both side surfaces of the mounting groove 2212 are planar, and the cam 222 has a fourth mating surface 2226 matching with the bottom surface of the mounting groove 2212, and the side surfaces on both sides of the fourth mating surface 2226 also correspondingly match with the mounting groove 2212.

In the embodiment, referring to fig. 6, the elastic member 230 and the cam 222 are made of uniform metal materials, so that the wear resistance is better, and the wear of the cam 222 can be reduced during the opening and closing process of the bracket 221, which is helpful for prolonging the service life of the opening and closing structure 200.

In some embodiments of the present utility model, referring to fig. 10 and 12, the cam 222 further includes a damping surface 2225, a first locking surface 2223, and a second locking surface 2224, the first locking surface 2223 and the second locking surface 2224 are located on two sides of the damping surface 2225 in the circumferential direction, and the elastic member 230 includes a working surface 231 that abuts against the damping surface 2225, the first locking surface 2223, and the second locking surface 2224. Specifically, the cam 222 includes a body and an abutment protruding from the outer periphery of the body, and the damping surface 2225 is the outer periphery of the abutment, where the damping surface 2225 is an arc surface; a step surface is formed between the abutment portion and the body, the first locking surface 2223 is a step surface located at one side of the abutment portion, and the second locking surface 2224 is another step surface located at the other side of the abutment portion. The elastic member 230 includes a mounting portion 232 and a working surface 231, where the connecting portion is fixedly connected to the outside, and the working surface 231 can abut against the first locking surface 2223, the second locking surface 2224, or the damping surface 2225, respectively. As can be seen from the drawing, the working surface 231 is a cambered surface, and can slide between the first locking surface 2223, the second locking surface 2224, or the damping surface 2225.

In the present embodiment, the positional states of the holder 221 include a first state, a second state, and a third state. Referring to fig. 11, fig. 11 shows a schematic view of the stand 221 in a first state, i.e., a stowed state, and the stand 221 in the figure can only be rotated clockwise, i.e., rotating the stand 221 clockwise, to enable the stand 221 to be rotated from the stowed state to the deployed state. In the drawing, the working surface 231 of the elastic member 230 abuts against the first locking surface 2223, at this time, the stand 221 is in a retracted state, and since the working surface 231 of the elastic member 230 is engaged with the first locking surface 2223, the stand 221 needs to overcome the blocking effect of the working surface 231 to rotate clockwise, so that when the working surface 231 is engaged with the first locking surface 2223, the stand 221 has a self-locking function, and the stand 221 is effectively prevented from self-expanding. When the stand 221 is in the second state, that is, when the stand 221 is in the fully-extended state, the working surface 231 abuts against the second locking surface 2224, and at this time, the stand 221 needs to overcome the blocking effect of the working surface 231 on the second locking surface 2224, so that the stand 221 can rotate counterclockwise relative to the elastic member 230, and therefore, when the working surface 231 is engaged with the second locking surface 2224, the stand 221 also has a self-locking function, and the stand 221 can be effectively prevented from retracting by itself. When the bracket 221 is in the third state, the working surface 231 is in contact with the damping surface 2225, and at this time, friction is generated between the working surface 231 and the damping surface 2225, so that the bracket 221 has a certain damping effect when rotating. It should be appreciated that the amount of damping depends on the material of the working surface 231 and the damping surface 2225, and also on the amount of pre-compression of the damping surface 2225 by the resilient member 230.

It should be appreciated that the position states of the stand 221 may also include a fourth state, a fifth state, etc., where the stand 221 in different states corresponds to different unfolding angles, which is not limited herein.

In this embodiment, the elastic member 230 and the cam 222 are both made of metal, and have better wear resistance, so that the service life of the opening and closing structure 200 can be prolonged.

In the present embodiment, referring to fig. 8 to 10, a second mating surface 2131 is provided on a third portion of the rotating shaft 210, and a third mating surface 2222 is provided on the cam 222 corresponding to the second mating surface 2131, so that the cam 222 and the rotating shaft 210 cannot rotate relatively.

In some embodiments of the present utility model, referring to fig. 4, 7 and 13, the mounting assembly 240 includes a first support 241, the first support 241 is rotatably connected to one end of the rotating shaft 210, the first support 241 has a guide ring 2412, a guide hole 2215 is disposed on the support 221 corresponding to the guide ring 2412, and the guide ring 2412 is at least partially penetrating through the guide hole 2215. Specifically, the first support 241 has a first mounting hole 2411 cooperatively connected with the rotating shaft 210, the first mounting hole 2411 is concentrically disposed with the guide hole 2215, an end surface of the guide ring 2412 adjacent to the first support 241 is a fifth mating surface 2413, and the fifth mating surface abuts against a bottom surface of the guide hole 2215 to limit the axial movement of the bracket 221 along the rotating shaft 210.

In this embodiment, referring to fig. 9, the shaft 210 has a first mating surface 2111, and the first mating surface 2111 is used to mate with a fixture for convenience of assembly.

In some embodiments of the present utility model, referring to fig. 4 and 14, the mounting assembly 240 further includes a second support 242, the second support 242 having a second mounting hole 2421, the second mounting hole 2421 for rotatably coupling with one end of the rotation shaft 210.

In some embodiments of the present utility model, the material of the shaft 210 and/or the cam 222 and/or the elastic member 230 and/or the mounting assembly 240 is a metal material. The metal parts have better wear resistance, and are favorable for reducing abrasion and prolonging service life.

In some embodiments of the present utility model, referring to fig. 1 to 3, the digital screen includes a housing 100, the housing 100 having a receiving groove 110, the receiving groove 110 for receiving a bracket 221. The housing 100 further has a first connecting hole 120, the cross-sectional profile of the first connecting hole 120 is at least partially non-circular arc, the digital screen further includes a first connecting piece 310 and a second connecting piece cooperatively connected with the first connecting piece 310, the shape of the first connecting piece 310 matches the shape of the first connecting hole 120, and the first connecting piece 310 cannot rotate in the first connecting hole 120; the elastic member 230 is fixed to the housing 100 by the first and second connection members 310 and 310.

In this embodiment, referring to fig. 15, the first connecting member 310 has a sixth mating surface 311, the sixth mating surface 311 is a plane, two sides of the sixth mating surface 311 are cambered surfaces, and the shape of the first connecting hole 120 matches that of the first connecting member 310. Includes a connection portion 312, the connection portion 312 being adapted to connect with a second connector. In practical applications, the first connecting piece 310 may be fixedly installed in the first connecting hole 120 by dispensing or hot melting; the first connecting piece 310 may be a copper nut, and the second connecting piece may be a thread screw, and the thread screw is matched with the copper nut to avoid sliding.

The embodiments of the present utility model have been described in detail with reference to the accompanying drawings, but the present utility model is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present utility model. Furthermore, embodiments of the utility model and features of the embodiments may be combined with each other without conflict.

Claims (10)

1. An opening and closing structure, characterized by comprising:

the rotating shaft is provided with a first rotation stopping part;

the movable assembly comprises a bracket and a cam, wherein the bracket is provided with a mounting groove for mounting the cam, both sides of the mounting groove are respectively provided with a first through hole communicated with the mounting groove, the position of the cam corresponding to the first through hole is provided with a second through hole, the rotating shaft penetrates through the first through hole and the second through hole, at least one first through hole is provided with a second rotation stopping part matched with the first rotation stopping part, and the rotating shaft drives the cam to rotate;

an elastic member for abutting against an outer peripheral surface of the cam, the elastic member for providing a pre-compression force to the cam;

the installation assembly is connected with the shell through the rotating shaft, and the rotating shaft can rotate relative to the installation assembly.

2. The opening and closing structure according to claim 1, wherein the first rotation stopping portion has an axially extending rotation stopping groove, and the second rotation stopping portion includes a rotation stopping protrusion at least partially inserted into the rotation stopping groove to limit rotation of the bracket relative to the rotation shaft.

3. The opening and closing structure according to claim 2, wherein the first rotation stopping portion further has a first rotation stopping surface, a cross-sectional profile of the first rotation stopping surface is a non-circular arc, and the second rotation stopping portion has a second rotation stopping surface that cooperates with the first rotation stopping surface.

4. An opening and closing structure according to claim 3, wherein the rotation stopping protrusion is disposed opposite to the second rotation stopping surface.

5. The opening and closing structure according to claim 1, wherein the cross-sectional profile of the mounting groove is a non-circular arc, and the cam has a connecting portion that is cooperatively connected with the mounting groove.

6. The opening and closing structure according to any one of claims 1 to 5, wherein the cam further has a damping surface, a first locking surface and a second locking surface, the first locking surface and the second locking surface being located on both sides of the damping surface in a circumferential direction, respectively, the elastic member having a working surface abutting against the damping surface, the first locking surface and the second locking surface; wherein the position state of the bracket comprises a first state, a second state and a third state;

the working surface is abutted with the first locking surface in the first state;

the working surface is abutted with the second locking surface in the second state;

and in the third state, the working surface is abutted with the damping surface.

7. The opening and closing structure according to claim 1, wherein the mounting assembly comprises a first supporting member rotatably connected to one end of the rotating shaft, the first supporting member has a guide ring, a guide hole is formed in the position of the support corresponding to the guide ring, and the guide ring is at least partially penetrated through the guide hole.

8. The opening and closing structure according to claim 1, wherein the material of the rotating shaft and/or the cam and/or the elastic member and/or the mounting component is a metal material.

9. A digital screen, characterized by, including the structure that opens and shuts of any one of claims 1 to 8, still include the casing, the installation component with the casing is connected, elastomeric element install in the casing, elastomeric element's one end cantilever setting and with the cam butt, the support can rotate relatively with the casing.

10. The digital screen of claim 9, wherein the housing further has a first attachment aperture having a cross-sectional profile that is at least partially non-circular, the digital screen further comprising a first attachment member and a second attachment member cooperatively coupled to the first attachment member, the first attachment member having a shape that matches the first attachment aperture, the resilient member being secured to the housing by the first attachment member and the second attachment member.