CN210219295U - Corner splicing structure of flat plate device and flat plate device - Google Patents

Abstract

The utility model relates to a display device technical field provides a corner mosaic structure and dull and stereotyped device of dull and stereotyped device, and dull and stereotyped device includes first section bar and second section bar, and first section bar includes with the mutual corner mosaic structure of splicing of second section bar: the first front splicing part of the first section bar is positioned on the front side of the flat panel device, the first section bar fixing part of the first section bar is positioned on the opposite side of the first front splicing part, the second front splicing part of the second section bar is positioned on the front side of the flat panel device, the second section bar fixing part of the second section bar is positioned on the opposite side of the second front splicing part, and the corner connecting piece; after the corner connecting piece is connected with the first profile and the second profile, the first front splicing part and the second front splicing part are spliced into a structure which completely shields the corner connecting piece from the front side of the flat plate device, so that the splicing gap of the front side of the flat plate device is reduced, the structure is simple, and the cross-tolerance and the color-difference of the corner position of the existing flat plate device are effectively improved.

Description

Corner splicing structure of flat plate device and flat plate device

Technical Field

The utility model relates to a display device technical field, concretely relates to dull and stereotyped device's corner mosaic structure and dull and stereotyped device.

Background

The frame of current large-size screen structure is mostly rectangular section bar, because the corner position department processing technology of rectangle is complicated, if adopt the integrated into one piece mode with the sharp section bar of corner and frame to process, then can greatly increase manufacturing cost.

In order to reduce the production and processing cost, the straight line section of the outer frame is usually processed by adopting one type of aluminum material, the structure at the corner position is processed by adopting the other type of aluminum material, and then the two materials are spliced into a whole.

However, due to different materials, when the corner and the straight section are spliced, the surface at the splicing position may have color difference, and the gap at the splicing position may be enlarged during splicing, which affects the overall aesthetic property.

SUMMERY OF THE UTILITY MODEL

Based on above-mentioned current situation, the utility model discloses a main aim at provides a corner mosaic structure and dull and stereotyped device of dull and stereotyped device to when the frame section bar of the touch-control display equipment who exists among the solution prior art splices in corner position department, the whole aesthetic property of existence is poor, influences touch-control display equipment's product quality and market competition's problem.

In order to achieve the above object, on the one hand, the utility model discloses a technical scheme as follows:

a corner splicing structure of a panel device comprises a first profile and a second profile which are spliced with each other to form a preset included angle between the first profile and the second profile,

the corner mosaic structure includes: a first front splicing part formed on the first section bar and positioned on the front side of the panel device, a first section bar fixing part formed on the first section bar and positioned on the opposite side of the first front splicing part, a second front splicing part formed on the second section bar and positioned on the front side of the panel device, a second section bar fixing part formed on the second section bar and positioned on the opposite side of the second front splicing part, and a corner connecting piece used for connecting the first section bar fixing part and the second section bar fixing part,

the corner splicing structure is configured such that: after the first profile and the second profile are connected through the corner connector, the first front splicing part and the second front splicing part are spliced with each other to completely shield the corner connector from the front side of the flat panel device.

Preferably, the first profile comprises a first profile body, the first front splicing part comprises a splicing plate, one end of the splicing plate is connected with the first profile body, the other end of the splicing plate is a free end, the front of the splicing plate is formed by extending the front of the first profile out of the end part of the first profile, the splicing plate comprises a first side surface located between the free end and the end connected with the first profile body, and the first side surface forms a first splicing surface spliced with the second profile;

the second front splicing part comprises a second splicing surface which is formed on the end part, close to the end part, of the second section bar, and the second splicing surface abuts against the first splicing surface to form splicing between the first front splicing part and the second front splicing part.

Preferably, the corner connector comprises a connector body, a first connecting part used for being connected with the first profile fixing part and a second connecting part used for being connected with the second profile fixing part;

wherein, first connecting portion and second connecting portion all construct for elongated structure, and the contained angle between the extending direction of first connecting portion and the extending direction of second connecting portion is predetermined contained angle.

Preferably, the first profile is formed with a first accommodating cavity, the first connecting portion extends into the first accommodating cavity, and a side wall of the first accommodating cavity forms the first profile fixing portion;

the second section bar is provided with a second containing cavity, the second connecting part extends into the second containing cavity, and the side wall of the second containing cavity forms the second section bar fixing part.

Preferably, a first connecting piece positioning structure is arranged at one end, close to the end part of the first profile, of the side wall of the first accommodating cavity, a first profile positioning structure is arranged on the connecting piece body, and positioning between the corner connecting piece and the first profile in the extending direction of the first profile is realized through matching of the first connecting piece positioning structure and the first profile positioning structure;

the side wall of the second containing cavity is close to one end of the end part of the second profile, a second connecting piece positioning structure is arranged at one end of the end part of the second profile, a second profile positioning structure is arranged on the connecting piece body, and the corner connecting piece and the second profile are positioned in the extending direction of the second profile through the cooperation of the second connecting piece positioning structure and the second profile positioning structure.

Preferably, the side wall of the first receiving cavity includes a first side wall and a second side wall, the first side wall and the second side wall both extend along the length direction of the first profile, the first side wall is configured such that a first side edge thereof is located near the front side of the flat panel device and a second side edge thereof is located near the back side of the flat panel device, and a first side edge of the second side wall is connected to a second side edge of the first side wall, the first connector positioning structure includes a first connector positioning surface formed on an end portion of the first side wall near the first profile and a second connector positioning surface formed on an end portion of the second side wall near the first profile, wherein the first connector positioning surface is disposed closer to the end portion of the first profile than the second connector positioning surface in the extension direction of the first profile;

the side wall of the second accommodating cavity comprises a third side wall, a fourth side wall, a fifth side wall and a sixth side wall, the third side wall, the fourth side wall, the fifth side wall and the sixth side wall all extend along the length direction of the second section bar, the third side wall is structured such that a first side edge thereof is positioned close to the front side of the flat panel device and a second side edge thereof is positioned on the back side of the flat panel device, the first side edge of the fourth side wall is connected with a second side edge of the third side wall, the fifth side wall is structured such that a first side edge thereof is positioned close to the front side of the flat panel device and a second side edge thereof is positioned on the back side of the flat panel device, the first side edge of the sixth side wall is connected with the second side edge of the fifth side wall, a partial structure of the fourth side wall and a partial structure of the sixth side wall are overlapped with each other in a projection on the front side of the flat panel device, and a third connecting and positioning surface is formed at an end portion, and the end parts, close to the second front splicing part, of the fourth side wall and the fifth side wall form a fourth connecting and positioning surface, wherein the third connecting and positioning surface is arranged closer to the end part of the second profile than the fourth connecting and positioning surface in the extending direction of the second profile.

Preferably, the first profile positioning structure comprises a first profile positioning surface and a second profile positioning surface which are arranged on the connecting piece body, the first profile positioning surface is matched with the first connecting positioning surface, the second profile positioning surface is matched with the second connecting positioning surface, and the second profile positioning surface is arranged on the back side close to the flat device;

the second profile positioning structure comprises a third profile positioning surface and a fourth profile positioning surface which are arranged on the connecting piece body, the third profile positioning surface is matched with the third connecting positioning surface, and the fourth profile positioning surface is matched with the fourth connecting positioning surface.

Preferably, the predetermined included angle is 90 degrees, the first profile positioning surface and the third profile positioning surface are perpendicular to each other, the outer edge of the connecting piece body, which is located between the first profile positioning surface and the third profile positioning surface, is configured into a cylindrical surface, and after assembly, the axis of the cylindrical surface extends along the front-back direction of the flat plate device.

Preferably, the connecting piece body includes the square structure, the square structure includes consecutive first side, second side, third side and fourth side, first connecting portion connect on the first side, the second connecting portion connect on the second side, first connection locating surface with the fourth side sets up perpendicularly, third section bar locating surface with the third side sets up perpendicularly, the cylinder sets up between first section bar locating surface and third section bar locating surface to be located the juncture that is close to third side and fourth side.

Preferably, the square structure further comprises a first end face and a second end face which are oppositely arranged, wherein the first end face is arranged at the front side close to the flat panel device, the second end face is arranged at the back side close to the flat panel device, and a groove is formed on the second end face and constitutes an avoiding structure for installing a back plate of the flat panel device;

the connecting piece body is fixedly connected with the back plate through the mounting blocks.

In order to achieve the above object, on the other hand, the utility model adopts the following technical scheme:

the flat panel device comprises a touch display screen, a first profile and a second profile, wherein the first profile and the second profile are arranged on the outer side of the edge of the touch display screen, and the first profile and the second profile are connected with each other through the corner splicing structure.

The panel device is a touch all-in-one machine, an electronic blackboard, an electronic whiteboard, a multimedia large screen, a touch panel television, an intelligent interactive panel or an interactive display screen.

The utility model provides a dull and stereotyped device's corner mosaic structure and dull and stereotyped device, because first positive concatenation portion splices each other with the positive concatenation portion of second, shelter from the corner connecting piece completely from dull and stereotyped device's positive side to reduced the positive concatenation gap of dull and stereotyped device, simple structure has effectively improved disconnected poor sense and the colour difference sense that exists in the corner position department of current dull and stereotyped device simultaneously. The whole aesthetic property and the texture of the flat panel device are improved, the hand feeling of a user at the position of the touch corner is improved, the first feeling of people to the flat panel device is greatly improved, and the quality and the market competitiveness of a product are improved.

Drawings

Hereinafter, preferred embodiments of a corner splicing structure of a tablet device and a tablet device according to the present invention will be described with reference to the accompanying drawings.

Fig. 1 is a front view of a corner of a tablet device according to a preferred embodiment of the present invention;

fig. 2 is a side view of a corner of a tablet device according to a preferred embodiment of the present invention;

fig. 3 is a rear view of a corner of a tablet device according to a preferred embodiment of the present invention;

fig. 4 is one of the schematic structural views of the first section bar of the corner splicing structure of the flat plate device according to a preferred embodiment of the present invention;

fig. 5 is a second schematic structural view of the first section bar of the corner splicing structure of the flat plate device according to a preferred embodiment of the present invention;

fig. 6 is one of the structural diagrams of the second section bars of the corner splicing structure of the flat plate device according to a preferred embodiment of the present invention;

fig. 7 is a second schematic structural view of a second section bar of the corner splicing structure of the flat plate device according to a preferred embodiment of the present invention;

fig. 8 is one of the schematic structural views of the corner connecting member of the corner splicing structure of the flat plate device according to a preferred embodiment of the present invention;

fig. 9 is a second schematic structural view of a corner connector of a corner splicing structure of a flat plate device according to a preferred embodiment of the present invention;

fig. 10 is a schematic view illustrating a connection structure between a corner connector and a first profile of a corner splicing structure of a flat plate device according to a preferred embodiment of the present invention;

fig. 11 is one of schematic connection structures of a corner connector and a second profile of a corner splicing structure of a flat plate device according to a preferred embodiment of the present invention;

fig. 12 is a second schematic view illustrating a connection structure between the corner connector and the second section bar of the corner splicing structure of the flat plate device according to a preferred embodiment of the present invention.

In the figure:

1. frame section bar; 11. an upper frame; 12. a right frame; 13. a first profile; 131. a first front side splice; 132. a first profile fixing section; 133. a first profile body; 1331. a first transitional connecting surface; 134. splicing plates; 1341. a free end; 1342. a first side surface; 135. a first splicing surface; 136. a first inclined plane; 137. a first accommodating cavity; 1371. a first connector positioning structure; 13711. a first connecting and positioning surface; 13712. a second connecting and positioning surface; 1372. a first side wall; 13721. a first side edge; 13722. a second side edge; 1373. a second side wall; 13731. a first side edge; 13732. a first profile first locating hole; 14. a second profile; 141. a second front surface splice; 142. a second profile fixing part; 143. a second splicing surface; 144. a second inclined plane; 145. a second accommodating cavity; 1451. a second connector positioning structure; 1452. a third side wall; 14521. a first side edge; 14522. a second side edge; 14523. the third connecting and positioning surface; 1453. a fourth side wall; 14531. a first side edge; 1454. a fifth side wall; 14541. a first side edge; 14542. a second side edge; 1455. a sixth side wall; 14551. a first side edge; 14552. a second positioning hole of a second profile; 1456. the fourth connecting positioning surface; 146. a second profile body; 1461. a second transitional connecting surface;

2. a display screen; 21. a front side; 22. a back side;

3. a corner connector; 31. a connector body; 311. a first profile positioning structure; 3111. a first profile positioning surface; 3112. a second profile positioning surface; 312. a second profile positioning structure; 3121. a third profile positioning surface; 3122. a fourth profile positioning surface; 313. a square structure; 3131. a first side surface; 3132. a second side surface; 3133. a third side; 3134. a fourth side; 3135. a first end face; 3136. a second end face; 31361. a groove; 31362. mounting blocks; 31363. fixing the mounting hole; 314. a cylindrical surface; 32. a first connection portion; 321. a corner first positioning hole; 33. a second connecting portion; 331. a corner second positioning hole;

4. splicing seams; 41. splicing seams on the front surface; 42. a first side face splicing seam; 43. a second side surface splicing seam; 44. splicing seams on the back;

5. a back plate.

Detailed Description

The large-screen profile corner structure aims at the problem that in the prior art, due to the fact that different types of outer frame profiles and corner splicing materials exist, the splicing surface of the materials is poor in color difference, splicing gaps and splicing break differences are enlarged, and accordingly the appearance of a large screen is not attractive. The application provides a dull and stereotyped device's corner mosaic structure and have this corner mosaic structure to there is the uneven, the gap is big, the obvious problem of disconnected poor sense in the concatenation position to improve, and then has promoted dull and stereotyped device's whole feel and user touch and feel, has improved product quality and market competition.

The corner splicing structure of the flat panel device provided by the present application is described in detail below with reference to fig. 1 to 12. Usually, the outer edge of the flat plate device is square, and the frame section bar 1 is formed by sequentially connecting an upper frame 11, a lower frame (not shown in the figure), a left frame (not shown in the figure) and a right frame 12 end to end and splicing. Due to the large size of the large-screen flat plate device, the frame section bars need to be processed separately and then spliced together in the processing process. The same connecting mode is adopted at the corner connecting positions of the upper frame 11, the lower frame, the left frame and the right frame 12, so that the appearance attractiveness can be ensured at the connecting positions of the frames. The following is a detailed description of the corner splicing structure at one of the corner connecting positions.

As shown in fig. 1, the connection relationship between the upper frame 11 and the right frame 12 of the tablet device is shown. The panel device comprises a display screen 2 and a first profile 13 and a second profile 14 which are arranged at the edge of the display screen 2, wherein the first profile 13 forms an upper frame 11, the second profile 14 forms a right frame 12, and the first profile 13 and the second profile 14 are spliced with each other to form a preset included angle between the first profile 13 and the second profile 14. In order to facilitate the processing while ensuring the aesthetic appearance, the predetermined angle is preferably set to 90 ° so that the first profile 13 and the second profile 14 are perpendicular to each other. Of course, it will be appreciated that the predetermined included angle may be set at other angles, such as 45 or 60, when particular structural or aesthetic requirements dictate.

In a preferred embodiment, as shown in fig. 1, 3 to 7, the corner splicing structure includes: the first front splicing part 131 formed on the first profile 13 and located on the front side 21 of the flat panel device, the first profile fixing part 132 formed on the first profile 13 and located on the opposite side of the first front splicing part 131, the second front splicing part 141 formed on the second profile 14 and located on the front side 21 of the flat panel device, the second profile fixing part 142 formed on the second profile 14 and located on the opposite side of the second front splicing part 141, and the corner connector 3 for connecting the first profile fixing part 132 and the second profile fixing part 142. The corner splicing structure is configured such that: after connecting the first profile 13 and the second profile 14 by means of the corner connector 3, the first front splice 131 and the second front splice 141 are spliced to each other in such a way that the corner connector 3 is completely hidden from the front side 21 of the panel installation (see fig. 1), i.e. the connector 3 is completely hidden from view from the front side 21 of the panel installation. In this embodiment, the first section bar 13 forms the upper frame 11, the second section bar 14 forms the right frame 12, the first front splicing portion 131 of the upper frame 11 and the second front splicing portion 141 of the right frame 12 completely shield the corner connector 3, the first section bar fixing portion 132 of the upper frame 11 and the second section bar fixing portion 142 of the right frame 12, and only one splicing seam 4 extending along the transverse direction is left on the front side 21 of the flat panel device, so that the flat panel device has a good visual effect on the front side 21 and is more attractive. In another alternative embodiment (not shown), the second profile may form the upper rim and the first profile may form the right rim, leaving only one vertically extending splice seam (not shown) on the front side 21 of the plate means.

As shown in fig. 4, 5 and 6, the first profile 13 includes a first profile body 133, the first front splicing portion 131 includes a splicing plate 134, one end of the splicing plate 134 is connected to the first profile body 133 (in the embodiment shown in fig. 4, the splicing plate 134 and the first profile body 133 are an integral structure), the other end is a free end 1341, the front surface of the splicing plate 134 (i.e., the surface located on the front surface side of the flat plate device) is formed by extending the front surface of the first profile body 133 (i.e., the surface located on the front surface side of the flat plate device) outward from the end of the first profile body 133, and the splicing plate 134 can shield the corner connector 3 and the second profile fixing portion 142. The splice plate 134 includes a first side 1342 located between the end connected to the first profile body 133 and the free end 1341, and the first side 1342 forms a first splice face 135 spliced with the second profile 14, and the above structure is convenient for positioning and reliable in connection.

As shown in fig. 6 and 7, the second front splicing portion 141 includes a second splicing surface 143 formed on the end portion, close to the second section bar 14, and the second splicing surface 143 abuts against the first splicing surface 135 to form splicing between the first front splicing portion 131 and the second front splicing portion 141, so that when the front side 21 of the flat panel device is observed, only one transversely extending splicing seam 4 can be seen at the connecting position of the first section bar 13 and the second section bar 14, the appearance is high, and the visual and touch experience of a user is improved.

As shown in fig. 1, 4 to 7, since the first profile 13 and the second profile 14 have a certain thickness, in order to avoid a large distance between the connection positions of the first profile 13 and the second profile 14 and the display screen 2 at the front side 21 of the flat panel device, the first profile body 133 is provided with a first transitional connection surface 1331, the second profile body 146 is provided with a second transitional connection surface 1461, and the first profile body 133 and the second profile body 146 are connected to the display screen 2 through the first transitional connection surface 1331 and the second transitional connection surface 1461, respectively. The end of the first transitional connecting surface 1331 close to the end of the first profile body 133 has a first inclined surface 136, and the first inclined surface 136 and the first splicing surface 135 have a first inclined angle therebetween. Preferably, the first inclination angle is preferably 45 °. The end of the second transitional coupling surface 1461 adjacent to the end of the second profile body 146 has a second inclined surface 144, and a second inclination angle is formed between the second inclined surface 144 and the second splicing surface 143. Preferably, the second angle of inclination is 135 °. When the first splicing surface 135 is attached to the second splicing surface 143, the first inclined surface 136 and the second inclined surface 144 are attached to each other for splicing, so that the joints between the first section bar 13 and the second section bar 14 and the display screen 2 can be smoothly transited without being obtrusive on the premise of ensuring the appearance.

As shown in fig. 8 to 12, the corner connector 3 includes a connector body 31, a first connecting portion 32 for connecting with the first profile fixing portion 132, and a second connecting portion 33 for connecting with the second profile fixing portion 142. Wherein, first connecting portion 32 and second connecting portion 33 are all constructed as rectangular structure, and the contained angle between the extending direction of first connecting portion 32 and the extending direction of second connecting portion 33 is the same with the contained angle between first section bar 13 and second section bar 14 to guarantee that corner connecting piece 3 can be stable and fixed mutually with first section bar 13 and second section bar 14, preferably, the contained angle between first connecting portion 32 and second connecting portion 33 is 90 also, convenient location and processing. It will of course be appreciated that as the angle between the first profile 13 and the second profile 14 changes, the angle between the first connection 32 and the second connection 33 will also change accordingly.

Further, as shown in fig. 4, 5 and 10, the first section 13 is formed with a first receiving cavity 137, the first connecting portion 32 extends into the first receiving cavity 137, and a side wall of the first receiving cavity 137 forms the first section fixing portion 132. A first connecting piece positioning structure 1371 is arranged at one end of the side wall of the first accommodating cavity 137, which is close to the end part of the first profile 13, a first profile positioning structure 311 is arranged on the connecting piece body 31, and the positioning between the corner connecting piece 3 and the first profile 13 in the extending direction of the first profile 13 is realized through the matching of the first connecting piece positioning structure 1371 and the first profile positioning structure 311. Specifically, the side walls of the first receiving cavity 137 include a first side wall 1372 and a second side wall 1373, the first side wall 1372 and the second side wall 1373 both extend along the length direction of the first profile 13, the first side wall 1372 is configured such that the first side edge 13721 is located near the front side 21 of the tablet device, the second side edge 13722 is located near the back side 22 of the tablet device, the first side edge 13731 of the second side wall 1373 is connected to the second side edge 13722 of the first side wall 1372, the first connector positioning structure 1371 includes a first connector positioning surface 13711 formed at an end of the first side wall 1372 near the first profile 13, and a second connector positioning surface 13712 formed at an end of the second side wall 1373 near the first profile 13, wherein, in the extending direction of the first profile 13, the first connector positioning surface 13711 is disposed closer to the end of the first profile 13 than the second connector positioning surface 13712. First section bar location structure 311 is including setting up first section bar locating surface 3111 and second section bar locating surface 3112 on connecting piece body 31, and first section bar locating surface 3111 cooperatees with first connection locating surface 13711, and second section bar locating surface 3112 cooperatees with second connection locating surface 13712, and wherein, second section bar locating surface 3112 sets up and is being close to dull and stereotyped device's back side 22. The first connecting portion 32 of the corner connecting member 3 is provided with a plurality of corner first positioning holes 321, and the corner first positioning holes 321 may be uniformly distributed or irregularly distributed. The second side wall 1373 of the first accommodating cavity 137 is provided with a first positioning hole 13732 of a first profile, and the first positioning hole 321 of the corner and the first positioning hole 13732 of the first profile are correspondingly arranged, and the corresponding arrangement includes number correspondence, position correspondence and size correspondence. After the first profile positioning surface 3111 is attached to the first connecting positioning surface 13711 and the second profile positioning surface 3112 is attached to the second connecting positioning surface 13712, a fastener (not shown), such as a screw or a bolt, is sequentially inserted through the first corner positioning hole 321 and the first profile positioning hole 13732 to fasten and connect the first profile 13 and the first connecting portion 32 of the corner connecting member 3 together.

As shown in fig. 6, 7, 11 and 12, the second profile 14 is formed with a second receiving cavity 145, the second connecting portion 33 extends into the second receiving cavity 145, and a sidewall of the second receiving cavity 145 constitutes the second profile fixing portion 142. A second connector positioning structure 1451 is arranged at one end of the side wall of the second accommodating cavity 145 close to the end part of the second profile 14, the connector body 31 is provided with a second profile positioning structure 312, and the positioning between the corner connector 3 and the second profile 14 in the extending direction of the second profile 14 is realized through the matching of the second connector positioning structure 1451 and the second profile positioning structure 312. The sidewalls of the second receiving chamber 145 include a third sidewall 1452, a fourth sidewall 1453, a fifth sidewall 1454 and a sixth sidewall 1455, the third sidewall 1452, the fourth sidewall 1453, the fifth sidewall 1454 and the sixth sidewall 1455 all extend along the length of the second profile 14, the third sidewall 1452 is configured such that a first side 14521 thereof is positioned near the front side 21 of the tablet device, a second side 14522 is positioned on the back side 22 of the tablet device, a first side 14531 of the fourth sidewall 1453 is connected to a second side 14522 of the third sidewall 1452, the fifth sidewall 1454 is configured such that a first side 14541 thereof is positioned near the front side 21 of the tablet device, a second side 14542 thereof is positioned on the back side 22 of the tablet device, preferably, the third sidewall 1452 and the fifth sidewall 1454 are substantially parallel, a first side 14551 of the sixth sidewall 1455 is connected to a second side 14542 of the fifth sidewall 1454, a partial structure of the fourth sidewall 1453 and a partial structure of the sixth sidewall 1455 are projected onto the front side 21 of the tablet device, a third coupling positioning surface 14523 is formed at the end of the third side wall 1452 close to the second profile 14 and fourth coupling positioning surfaces 1456 are formed at the ends of the fourth side wall 1453 and the fifth side wall 1454 close to the second profile 14, wherein the third coupling positioning surface 14523 is disposed closer to the end of the second profile 14 than the fourth coupling positioning surface 1456 in the extending direction of the second profile 14. Preferably, the fourth connecting and positioning surface 1456 and the second splicing surface 143 are located on the same plane. The second profile positioning structure 312 comprises a third profile positioning surface 3121 and a fourth profile positioning surface 3122 provided on the connecting piece body 31, the third profile positioning surface 3121 cooperates with the third connecting positioning surface 3122, and the fourth profile positioning surface 3122 cooperates with the fourth connecting positioning surface 1456. The second connecting portion 33 of the corner connector 3 is provided with a corner second positioning hole 331, the sixth sidewall 1455 of the second receiving cavity 145 is provided with a second profile second positioning hole 14552, and the corner second positioning hole 331 and the second profile second positioning hole 14552 are correspondingly arranged, including corresponding number, position and size. After the third profile positioning surface 3121 is attached to the third connection positioning surface 14523 and the fourth profile positioning surface 3122 is attached to the fourth connection positioning surface 1456, a fastener (not shown), such as a screw or a bolt, is used to sequentially pass through the corner second positioning hole 331 and the second profile second positioning hole 14552 to fasten and connect the second profile 14 and the second connection portion 33 of the corner connection member 3 together.

As shown in fig. 8 and 9 in combination with fig. 10 to 12, the connector body 31 includes a square structure 313, and the square structure 313 includes a first side 3131, a second side 3132, a third side 3133, and a fourth side 3134 connected in sequence. In a preferred embodiment, the first connecting portion 32 is connected to the first side surface 3131, the second connecting portion 33 is connected to the second side surface 3132, the angle between the first connecting portion 32 and the second connecting portion 33 is 90 °, the first profile alignment surface 3111 and the third profile alignment surface 3121 are perpendicular to each other, the outer edge of the portion of the connecting member body 31 between the first profile alignment surface 3111 and the third profile alignment surface 3121 is configured as a cylindrical surface 314, and after assembly, the axis 314 of the cylindrical surface extends in the front-rear direction of the plate device. The first profile-positioning surface 3111 is arranged perpendicular to the fourth side 3134, the third profile-positioning surface 3121 is arranged perpendicular to the third side 3133, and the cylindrical surface 314 is arranged between the first profile-positioning surface 3111 and the third profile-positioning surface 3121 and is located close to the intersection of the third side 3133 and the fourth side 3134. Preferably, second profile positioning surface 3112 is constituted by a portion of first side 3131 and fourth profile positioning surface 3122 is constituted by a portion of second side 3132. Further, the quad structure 313 further includes a first end surface 3135 and a second end surface 3136 oppositely disposed, wherein the first end surface 3135 is disposed near the front side 21 of the flat panel device, the second end surface 3136 is disposed near the back side 22 of the flat panel device, and a groove 31361 is formed on the second end surface 3136, the groove 31361 constituting an avoiding structure for mounting the back panel of the flat panel device. The groove 31361 is provided with a mounting block 31362, and the connector body 31 is fixedly connected to the back plate 5 (see fig. 3) through the mounting block 31362. The mounting block 31362 is provided with a fixing hole 31363, the back plate 5 is provided with a threaded hole corresponding to the fixing hole 31363, and when the connector is mounted, the back plate 5 and the connector body 31 are fixedly mounted together by passing a fastening member such as a screw through the back plate 5 and the mounting block 31362 in sequence.

As shown in fig. 1 to 3, with the corner splicing structure of the flat panel device in the present application, when viewed from the front side 21 of the flat panel device, only one front splicing seam 41 can be viewed from the front side 21, which improves the aesthetic property of the flat panel device. The problem that due to the fact that the material of the section bar is different from that of the corner connecting piece, the chromatic aberration between the section bar and the corner connecting piece is large, and the fault effect of the splicing position is enlarged is avoided. Also, since the front side 21 has only one front splice seam 41, the feel is better when the user touches the tablet device. A transverse first side seam 42 and a vertical second side seam 43 are provided on the side of the plate device; the two fold lines of the back side seam 44 are provided on the back side 22 of the tablet device, but when the tablet device is used at ordinary times, the user generally does not notice the back side 22 and the side, and does not observe the existence of the first side seam 42, the second side seam 43 and the back seam 44, thereby improving the overall aesthetic property of the tablet device. Meanwhile, the first side splicing seam 42 and the second side splicing seam 43 can effectively reduce the thickness of the product and give a light and thin feeling to a user. Preferably, the cylinder of corner connecting piece 3 is by aluminium ADC12 die-casting shaping, and first section bar 13 and second section bar 14 make the shaping by aluminium 6063, because the colour of two kinds of materials is different, and the position department is prominent with the concatenation easily during the concatenation, influences the aesthetic property, adopts the corner mosaic structure of flat device in this application, because the corner connecting piece only exposes the edge of cylinder in corner junction, just can realize the complete circular arc transition in the corner of flat device, promotes the quality and the market competition of product.

The present application further provides a flat panel device, as shown in fig. 1 to 3, including a display screen 2, preferably a touch display screen, and further including a first section bar 13 and a second section bar 14 disposed outside the edge of the display screen 2, wherein the first section bar 13 and the second section bar 14 are connected to each other through the corner splicing structure as described above. In a preferred embodiment, the first profiles 13 are upper and lower profiles and the second profiles 14 are left and right profiles. Of course, it is understood that the first profile may be a left and right profile and the second profile may be an upper and lower profile.

The panel device is a touch all-in-one machine, an electronic blackboard, an electronic whiteboard, a multimedia large screen, a touch panel television, an intelligent interactive panel or an interactive display screen.

It will be appreciated by those skilled in the art that the above-described preferred embodiments may be freely combined, superimposed, without conflict.

It will be understood that the above-described embodiments are illustrative only and not restrictive, and that various obvious and equivalent modifications and substitutions may be made in the details described herein by those skilled in the art without departing from the basic principles of the invention.

Claims (12)

1. A corner splicing structure of a panel device, the panel device comprises a first section bar and a second section bar which are spliced with each other to form a preset included angle between the first section bar and the second section bar, and is characterized in that,

the corner mosaic structure includes: the first front splicing part is formed on the first section bar and is positioned on the front side of the panel device, the first section bar fixing part is formed on the first section bar and is positioned on the opposite side of the first front splicing part, the second front splicing part is formed on the second section bar and is positioned on the front side of the panel device, the second section bar fixing part is formed on the second section bar and is positioned on the opposite side of the second front splicing part, and the corner connecting piece is used for connecting the first section bar fixing part and the second section bar fixing part;

the corner splicing structure is configured such that: after the first profile and the second profile are connected through the corner connector, the first front splicing part and the second front splicing part are spliced with each other to completely shield the corner connector from the front side of the flat panel device.

2. The corner splicing structure of a flat plate device according to claim 1, wherein the first section bar comprises a first section bar body, the first front splicing part comprises a splicing plate, one end of the splicing plate is connected with the first section bar body, the other end of the splicing plate is a free end, the front surface of the splicing plate is formed by extending the front surface of the first section bar to the outside of the end part of the first section bar, the splicing plate comprises a first side surface between the free end and the end of the splicing plate connected with the first section bar body, and the first side surface forms a first splicing surface spliced with the second section bar;

the second front splicing part comprises a second splicing surface which is formed on the end part, close to the end part, of the second section bar, and the second splicing surface abuts against the first splicing surface to form splicing between the first front splicing part and the second front splicing part.

3. The corner splicing structure of a plate device according to claim 2, wherein the corner connector comprises a connector body, a first connecting part for connecting with the first profile fixing part and a second connecting part for connecting with the second profile fixing part;

wherein, first connecting portion and second connecting portion all construct for elongated structure, and the contained angle between the extending direction of first connecting portion and the extending direction of second connecting portion is predetermined contained angle.

4. The corner splicing structure of a flat panel device according to claim 3, wherein the first section bar is formed with a first receiving cavity, the first connecting portion extends into the first receiving cavity, and a side wall of the first receiving cavity forms the first section bar fixing portion;

the second section bar is provided with a second containing cavity, the second connecting part extends into the second containing cavity, and the side wall of the second containing cavity forms the second section bar fixing part.

5. The corner splicing structure of a flat panel device according to claim 4, wherein a first connecting piece positioning structure is arranged at one end of the side wall of the first accommodating cavity, which is close to the end of the first section bar, a first section bar positioning structure is arranged on the connecting piece body, and the positioning between the corner connecting piece and the first section bar in the extending direction of the first section bar is realized through the matching of the first connecting piece positioning structure and the first section bar positioning structure;

the side wall of the second containing cavity is close to one end of the end part of the second profile, a second connecting piece positioning structure is arranged at one end of the end part of the second profile, a second profile positioning structure is arranged on the connecting piece body, and the corner connecting piece and the second profile are positioned in the extending direction of the second profile through the cooperation of the second connecting piece positioning structure and the second profile positioning structure.

6. The corner splicing structure of a flat panel device according to claim 5, wherein the side walls of the first accommodating cavity comprise a first side wall and a second side wall, the first side wall and the second side wall both extend along the length direction of the first profile, the first side wall is configured such that a first side edge thereof is located near the front side of the flat panel device, and a second side edge thereof is located near the back side of the flat panel device, the first side edge of the second side wall is connected with the second side edge of the first side wall, the first connecting piece positioning structure comprises a first connecting and positioning surface which is formed at the end part, close to the first section bar, of the first side wall, and a second connection positioning surface formed at the end of the second side wall close to the first section bar, wherein, in the extending direction of the first section bar, the first connecting and positioning surface is closer to the end part of the first section bar than the second connecting and positioning surface;

the side wall of the second accommodating cavity comprises a third side wall, a fourth side wall, a fifth side wall and a sixth side wall, the third side wall, the fourth side wall, the fifth side wall and the sixth side wall all extend along the length direction of the second section bar, the third side wall is structured such that a first side edge thereof is positioned close to the front side of the flat panel device and a second side edge thereof is positioned on the back side of the flat panel device, the first side edge of the fourth side wall is connected with a second side edge of the third side wall, the fifth side wall is structured such that a first side edge thereof is positioned close to the front side of the flat panel device and a second side edge thereof is positioned on the back side of the flat panel device, the first side edge of the sixth side wall is connected with the second side edge of the fifth side wall, a partial structure of the fourth side wall and a partial structure of the sixth side wall are overlapped with each other in a projection on the front side of the flat panel device, and a third connecting and positioning surface is formed at an end portion, and the end parts, close to the second front splicing part, of the fourth side wall and the fifth side wall form a fourth connecting and positioning surface, wherein the third connecting and positioning surface is arranged closer to the end part of the second profile than the fourth connecting and positioning surface in the extending direction of the second profile.

7. The corner splicing structure of a flat panel device according to claim 6, wherein the first profile positioning structure comprises a first profile positioning surface and a second profile positioning surface arranged on the connector body, the first profile positioning surface is matched with the first connecting positioning surface, the second profile positioning surface is matched with the second connecting positioning surface, and the second profile positioning surface is arranged close to the back side of the flat panel device;

the second profile positioning structure comprises a third profile positioning surface and a fourth profile positioning surface which are arranged on the connecting piece body, the third profile positioning surface is matched with the third connecting positioning surface, and the fourth profile positioning surface is matched with the fourth connecting positioning surface.

8. The corner splicing structure of a flat panel device according to claim 7, wherein the predetermined included angle is 90 degrees, the first profile positioning surface and the third profile positioning surface are perpendicular to each other, the outer edge of the connecting member body between the first profile positioning surface and the third profile positioning surface is configured as a cylindrical surface, and after assembly, the axis of the cylindrical surface extends along the front-rear direction of the flat panel device.

9. The corner splicing structure of a flat plate device according to claim 8, wherein the connecting member body comprises a square structure, the square structure comprises a first side surface, a second side surface, a third side surface and a fourth side surface which are sequentially connected, the first connecting portion is connected to the first side surface, the second connecting portion is connected to the second side surface, the first profile positioning surface is perpendicular to the fourth side surface, the third profile positioning surface is perpendicular to the third side surface, and the cylindrical surface is arranged between the first profile positioning surface and the third profile positioning surface and is located near a junction of the third side surface and the fourth side surface.

10. The corner splicing structure of a flat panel device according to claim 9, wherein the square structure further comprises a first end surface and a second end surface which are oppositely arranged, wherein the first end surface is arranged near the front side of the flat panel device, the second end surface is arranged near the back side of the flat panel device, and a groove is formed on the second end surface, and the groove forms an avoiding structure for installing a back plate of the flat panel device;

the connecting piece body is fixedly connected with the back plate through the mounting blocks.

11. A flat panel device comprising a touch screen and a first profile and a second profile disposed outside the edges of the touch screen, wherein the first profile and the second profile are connected to each other by a corner splicing structure according to any one of claims 1 to 10.

12. The tablet device of claim 11, wherein the tablet device is a touch-all-in-one machine, an electronic blackboard, an electronic whiteboard, a multimedia large screen, a touch-control flat-panel television, an intelligent interactive tablet, or an interactive display screen.

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