CN219919457U - Rear cover sealing structure of display screen - Google Patents

Abstract

The utility model relates to the technical field of sealing of a combined display screen, in particular to a sealing structure of a rear cover of the display screen, which comprises a rear cover plate, sealing strips, pressing strips and fastening pieces, wherein a first caulking groove for the pressing strips to be clamped in is formed in the peripheral side surface of the rear cover plate, one side of each sealing strip is clamped in the corresponding first caulking groove and clamped between the rear cover plate and the corresponding pressing strip, the other side of each sealing strip extends to the peripheral side of the rear cover plate in a hanging mode, two sealing strips of the sealing structure of the rear cover of the adjacent two display screens abut against each other to seal gaps between the two rear cover plates, and the fastening pieces are simultaneously penetrated in the rear cover plate, the sealing strips and the pressing strips. The pressing strip presses the sealing strip on the back cover plate to deform and overhang the periphery of the back cover plate. The sealing strips of the sealing structures of the rear covers of the adjacent display screens are abutted against each other, so that gaps between the rear cover plates are closed. The fault display screen can be directly disassembled and assembled when being replaced, and the replacement efficiency is improved.

Description

Rear cover sealing structure of display screen

Technical Field

The utility model relates to the technical field of sealing of combined display screens, in particular to a sealing structure of a rear cover of a display screen.

Background

The display screen is used for displaying various information such as characters, images and videos, and when the display area requirement is large, a plurality of display screens are needed to be spliced into a combined display screen for use.

Each display screen in the combined display screen is of a relatively independent structure, each display screen comprises a rear cover plate and a display screen body arranged on the rear cover plate, and after splicing of two adjacent display screens, a certain gap is usually reserved between the rear cover plates of the two display screens, so that the watching effect of people is influenced. In order to reduce the influence of gaps, people can squeeze fillers such as silica gel into gaps between adjacent display screens to seal the gaps.

In the use process of the combined display screen, if one display screen fails, the display screen needs to be replaced. Because adopt filler such as silica gel to seal the clearance between the display screen to fill, operating personnel need clear away the filler earlier when demolishing trouble display screen, still need mend new filler in the clearance again and seal after changing new display screen, and then make the dismouting of display screen loaded down with trivial details, change inefficiency.

Disclosure of Invention

In order to solve the technical problems, the utility model provides a sealing structure of a rear cover of a display screen, which is characterized in that: including back shroud, sealing strip, layering and fastener, offer the confession on the week side face of back shroud the layering card goes into first caulking groove, one side card of sealing strip goes into in the first caulking groove and presss from both sides tightly back shroud with between the layering, the opposite side overhang of sealing strip is in the week side of back shroud, adjacent two display screen back shroud seal structure's two the sealing strip offsets in order to seal two gap between the back shroud, the fastener wears to establish simultaneously in back shroud, sealing strip and the layering.

By adopting the technical scheme, the pressing strip presses the sealing strip in the first caulking groove, so that the sealing strip deforms and extends outwards along the peripheral side of the rear cover plate; the fastener fixes the back cover plate, the sealing strip and the pressing strip together, and the sealing strip is maintained to extend outwards along the peripheral side of the back cover plate for a long time; two sealing strips of the sealing structures of the rear covers of the two adjacent display screens are abutted against each other, so that a gap between the two rear cover plates can be directly sealed; when the fault display screen is replaced, the new display screen is directly spliced with other display screens, and sealing strips between the display screens directly abut against each other, so that the replacement efficiency is improved.

Preferably, the rear cover plate is provided with a convex column in the first caulking groove, and the sealing strip is provided with a first fixing hole for the convex column to penetrate through.

Through adopting above-mentioned technical scheme, the projection wears to establish at first fixed orifices to the sealing strip wears to establish on the projection, restricts the sealing strip and removes in first caulking groove, has improved the stability of sealing strip in first caulking groove.

Preferably, the convex column is provided with a second fixing hole for the fastener to penetrate.

Through adopting above-mentioned technical scheme, the fastener wears to establish the second fixed orifices and fixes sealing strip and back shroud together simultaneously, and the thickness that the back shroud supplies the fastener to wear to establish can be indirectly increased in the setting of projection for the fastener is more stable in the back shroud, and the projection lets the fastener need not to directly perforate on the sealing strip, has reduced the wearing and tearing of fastener to the sealing strip.

Preferably, the sealing strip comprises a fixing part, a connecting part and an abutting part which are sequentially connected, a second caulking groove communicated with the first caulking groove is formed in the peripheral surface of the rear cover plate, the fixing part is clamped in the first caulking groove, the fastener penetrates through the fixing part, the connecting part is clamped in the second caulking groove, and one side of the abutting part, away from the connecting part, extends out of the second caulking groove and is suspended on the peripheral side of the rear cover plate.

Through adopting above-mentioned technical scheme, layering joint is in first caulking groove, and fixed part joint is in first caulking groove, and connecting plate and butt portion joint are in the second caulking groove, and the layering presss from both sides tightly the fixed part of sealing strip, and the stress area of sealing strip reduces to the deformation degree of sealing strip increases.

Preferably, the abutting portion is curved in a front side direction near the back cover plate.

Through adopting above-mentioned technical scheme, because the butt portion takes place the deformation after, the butt portion is crooked to the front side direction of keeping away from the back shroud gradually, when two butt portions of lid seal structure offset behind two adjacent display screens, the area of contact of two butt portions can increase gradually to make two butt portions laminating inseparabler, sealed effect is better.

Preferably, the pressing strip comprises a base strip and a first limiting strip connected to one side of the base strip, the base strip abuts against the fixing portion, the first limiting strip abuts against the connecting portion, and a third fixing hole for the fastener to penetrate is formed in the base strip.

Through adopting above-mentioned technical scheme, when the base strip compresses tightly the fixed part, the fixed part takes place deformation transmission to connecting portion, and the deformation force of first spacing with connecting portion leads the butt portion more to make the butt portion produce bigger deformation.

Preferably, the pressing strip further comprises a second limiting strip connected with the base strip, the second limiting strip and the first limiting strip are located on two opposite sides of the base strip, and the fixing part is clamped between the first limiting strip and the second limiting strip.

Through adopting above-mentioned technical scheme, when the fixed part takes place deformation, the deformation force of second spacing restriction fixed part keeps away from connecting portion.

Preferably, the base strip is provided with a sleeve at the edge of the third fixing hole.

Through adopting above-mentioned technical scheme, the sleeve has increased the thickness of base strip for the fastener is more stable in the base strip.

Preferably, a clamping strip is arranged on one side of the circumference of the rear cover plate, and a clamping seat suitable for clamping the clamping strip is arranged on the other side of the circumference of the rear cover plate; when the two adjacent display screen rear cover sealing structures are spliced, the clamping strip of one display screen rear cover sealing structure is clamped in the clamping seat of the other display screen rear cover sealing structure.

Through adopting above-mentioned technical scheme, when lid seal structure concatenation behind two adjacent display screens, lid seal structure's card strip joint behind one display screen in another display screen lid seal structure's cassette, its simple structure, convenient operation has increased lid seal structure's stability of connection behind the adjacent display screen, also is convenient for the dismouting simultaneously.

Preferably, the clamping seat comprises a first limiting block and a second limiting block, and the first limiting block and the second limiting block are arranged at intervals and are provided with clamping cavities for clamping the clamping strips.

Through adopting above-mentioned technical scheme, when card strip entering or break away from in the card chamber, all need only towards the direction of first stopper or second stopper with force can, its simple structure, the dismouting of being convenient for.

In summary, the utility model has the following beneficial effects:

1. because the pressing strip presses the sealing strip on the back cover plate to deform, the part of the sealing strip which is overhanging the periphery of the back cover plate continuously deforms outwards, the deformation of the sealing strip is kept for a long time by the fastening piece, and the two sealing strips of the sealing structures of the back covers of the two adjacent display screens are propped against each other, so that the gap between the two back cover plates is closed, the disassembly and the assembly are directly carried out when the fault display screen is replaced, and the replacement efficiency is improved;

2. the utility model adopts the convex column and the sleeve preferentially, thereby increasing the stability of the fastener in the back cover plate and the pressing strip; in addition, the convex columns also increase the stability of the sealing strip in the first caulking groove; the structural arrangement of the pressing strip and the sealing strip reduces the stress area of the sealing strip and increases the deformation degree of the sealing strip; the clamping strips and the clamping seats are arranged to facilitate the disassembly and assembly of the rear cover plates of the two adjacent display screens.

Drawings

Fig. 1 is a schematic structural view of a sealing structure of a rear cover of a display screen according to an embodiment of the present utility model.

Fig. 2 is a schematic diagram of an exploded structure of a bead, a sealing strip, a fastener and a back cover plate of a back cover sealing structure of a display screen according to an embodiment of the present utility model.

Fig. 3 is an enlarged schematic view of fig. 2 at a.

Fig. 4 is an enlarged schematic view of fig. 2 at B.

Fig. 5 is an enlarged schematic view of fig. 2 at C.

Fig. 6 is a schematic structural view of a bead of a sealing structure of a rear cover of a display screen according to an embodiment of the present utility model.

Fig. 7 is a schematic cross-sectional view of a clip strip and a clip seat of a sealing structure of a rear cover of two display screens according to an embodiment of the utility model.

Fig. 8 is a schematic structural diagram of a card holder of a sealing structure of a rear cover of a display screen according to an embodiment of the utility model.

Reference numerals illustrate:

1. a back cover plate; 11. a first caulking groove; 12. a convex column; 121. a second fixing hole; 13. a second caulking groove; 14. clamping strips; 141. a first guide surface; 15. a clamping seat; 151. a first limiting block; 1511. a second guide surface; 1512. a limiting surface; 152. a second limiting block; 1521. a third guide surface; 153. a cavity is blocked; 2. a sealing strip; 21. a fixing part; 211. a first fixing hole; 22. a connection part; 23. an abutting portion; 3. pressing strips; 31. a base strip; 311. a third fixing hole; 312. a sleeve; 313. reinforcing ribs; 32. a first limit bar; 33. the second limit bar; 4. a fastener.

Detailed Description

In order to make the objects, technical solutions and advantages of the present utility model more apparent, the present utility model will be further described in detail with reference to the accompanying drawings 1 to 8 and examples.

The embodiment of the utility model discloses a sealing structure of a rear cover of a display screen, which comprises a rear cover plate 1, a sealing strip 2, a pressing strip 3 and a fastener 4, and is disclosed with reference to fig. 1 and 2.

The pressing strip 3 presses the sealing strip 2 on the back cover plate 1, so that the sealing strip 2 deforms and extends out of the periphery of the back cover plate 1. The fastener 4 is simultaneously penetrated in the back cover plate 1, the sealing strip 2 and the pressing strip 3, so that the pressing strip 3 is fixedly arranged on the back cover plate 1 and compresses the sealing strip 2. When two adjacent display screen rear cover sealing structures are spliced, two corresponding rear cover plates 1 form a gap at the splicing position, and two sealing strips 2 pressed on the two rear cover plates 1 prop against the gap to seal the gap. Therefore, the fault display screen can be directly disassembled and assembled when being replaced, and the replacement efficiency is improved.

The rear cover plate 1 of the embodiment of the utility model is a square plate, and a first caulking groove 11 and a second caulking groove 13 are respectively formed on four peripheral surfaces of the rear cover plate 1 close to the rear side plate surface. The second caulking groove 13 on the peripheral surface of each back cover plate 1 is positioned on one side of the first caulking groove 11 facing the front side plate surface of the back cover plate 1, and the first caulking groove 11 and the second caulking groove 13 are mutually communicated, so that a step-shaped clamping surface is formed. The four first grooves 11 of each back plate 1 are connected to each other to form a ring groove, and the four second grooves 13 are also connected to each other to form a ring groove.

Referring to fig. 2 and 3, the sealing strips 2 in the sealing structure of the rear cover of the display screen in this embodiment may be a rectangular ring, or may be a rectangular ring formed by splicing a plurality of strip structures, and in this embodiment, four sealing strips 2 are specifically shown as an example. When the sealing strip 2 is damaged, only the damaged sealing strip 2 needs to be replaced, so that the replacement cost of the sealing structure of the rear cover of the display screen can be reduced. Each weather strip 2 includes a fixing portion 21, a connecting portion 22, and an abutting portion 23, which are connected in this order. The fixing portion 21 is engaged with the first insertion groove 11, and the connecting portion 22 and the abutting portion 23 are engaged with the second insertion groove 13.

Referring to fig. 3 and 4, the back cover 1 has a plurality of bosses 12 protruding in each first caulking groove 11, and the fixing portion 21 is provided with a first fixing hole 211 through which the boss 12 is inserted. The boss 12 is inserted into the first fixing hole 211, so that the fixing portion 21 can be restricted from moving in the first caulking groove 11, and stability of the fixing portion 21 in the first caulking groove 11 is improved. A second fixing hole 121 through which the fastener 4 passes is formed in the axial direction of the side of each boss 12 away from the first caulking groove 11. The fastener 4 wears to establish in the second fixed orifices 121 and fix fixed part 21 and back shroud 1 together simultaneously, and the thickness that back shroud 1 supplies fastener 4 to wear to establish can be indirectly increased to the setting of projection 12 for fastener 4 is more stable in back shroud 1, and projection 12 lets fastener 4 need not to directly perforate on fixed part 21, has reduced the wearing and tearing of fastener 4 to fixed part 21.

The abutting portion 23 protrudes from the second caulking groove 13 on a side away from the connecting portion 22 and overhangs on the peripheral side of the rear cover plate 1, and the abutting portion 23 is curved in a front side direction toward the rear cover plate 1. Because the abutting portion 23 is deformed and then the abutting portion 23 is gradually bent towards the front side direction far away from the rear cover plate 1, when the two abutting portions 23 of the sealing structure of the rear cover of the two adjacent display screens abut against each other, the contact area of the two abutting portions 23 is gradually increased, so that the two abutting portions 23 are tightly attached, and the sealing effect is better.

Referring to fig. 5, the molding 3 includes a base bar 31, a first stopper bar 32 and a second stopper bar 33, and the first stopper bar 32 and the second stopper bar 33 are connected to opposite sides of the base bar 31. Referring to fig. 3, the base bar 31 abuts against the fixing portion 21 to press the fixing portion 21, and the first limiting bar 32 and the second limiting bar 33 are limited on two opposite sides of the fixing portion 21 to clamp the fixing portion 21. When the base strip 31 presses the fixing portion 21, the deformation of the fixing portion 21 is transferred to the connecting portion 22, and the second limiting strip 33 limits the deformation force of the fixing portion 21 to be far away from the connecting portion 22. The first stopper 32 guides the deforming force of the connecting portion 22 to the abutting portion 23 more, thereby causing the abutting portion 23 to deform more.

The base strip 31 is provided with third fixing holes 311 through which the fasteners 4 are penetrated one by one. The fastener 4 may be a variety of parts such as a screw, a latch, etc. capable of tightly coupling the base strip 31, the fixing portion 21, and the boss 12 together. The fastener 4 in this embodiment is a countersunk head screw, and the third fixing hole 311 is a countersunk head hole. The fastening member 4 is penetrated in the third fixing hole 311 and is caught in the third fixing hole 311, thereby reducing surface abrasion due to the protruding fastening member 4 of the display screen rear cover sealing structure which is overlapped during transportation.

Referring to fig. 5 and 6, the base strip 31 is provided with a sleeve 312 at a side of each third fixing hole 311 near the fixing portion 21. The sleeve 312 increases the thickness of the base strip 31, making the fastener 4 more stable on the base strip 31. The base strip 31 is provided with a reinforcing rib 313 connected to the sleeve 312 on a side close to the fixing portion 21. The base strip 31 has a certain length, and is pressed on the fixing part 21, so that the base strip 31 is easy to deform due to stress, the strength and rigidity of the base strip 31 are improved due to the arrangement of the reinforcing ribs 313, and the service life of the base strip 31 is prolonged.

Referring to fig. 7, a plurality of clip strips 14 are protruded at intervals on a circumferential surface of one side of the back cover plate 1, and two clip strips are specifically shown in the figure, and a first guide surface 141 is smoothly excessively formed at a connection portion of each clip strip 14 and the back cover plate 1. The back cover plate 1 is provided with two clamping seats 15 for clamping the clamping strips 14 in one-to-one correspondence on the peripheral surface of the opposite side provided with the clamping strips 14. Each clamping seat 15 comprises a first limiting block 151 and a second limiting block 152, the first limiting blocks 151 and the second limiting blocks 152 are arranged at intervals along the circumferential direction of the rear cover plate 1 and the direction perpendicular to the rear cover plate 1, and therefore the first limiting blocks 151 and the second limiting blocks 152 are staggered to form a clamping cavity 153 for clamping the clamping strip 14. When the card strip 14 is clamped into the card cavity 153, the first limiting block 151 and the second limiting block 152 are respectively located at two opposite sides of the card strip 14.

Referring to fig. 7 and 8, in order to facilitate the card bar 14 to be able to be unidirectionally snapped into the card cavity 153, the first stopper 151 of the present embodiment is formed with a second guiding surface 1511 on a side facing away from the second stopper 152, and the first stopper 151 is formed with a limiting surface 1512 on a side facing toward the second stopper 152; the second stopper 152 is formed with a third guide surface 1521 on a side facing the first stopper 151. The card cavity 153 is formed by a limit surface 1512 and a third guide surface 1521, the card strip 14 is clamped into the card cavity 153 along the second guide surface 1511, and the limit surface 1512 can prevent the card strip 14 from sliding out of the card cavity 153 in the opposite direction; when the two back cover plates 1 need to be disassembled, the clamping strip 14 is used for marking the clamping cavity 153 along the third guiding surface 1521, so that the sealing structure of the back cover of the adjacent display screen can be conveniently disassembled.

The implementation principle of the embodiment of the utility model is as follows:

when the display screen is spliced for use, the sealing structures of the rear covers of the two adjacent display screens are spliced with each other, namely, the two rear cover plates 1 are connected through the matching of the clamping strips 14 and the clamping cavities 153, at the moment, the abutting parts 23 of the two sealing strips 2 are in sealing abutting connection, and gaps between the two rear cover plates 1 are sealed through the abutting parts 23. When the display screen needs to be replaced, the clamping strips 14 of the adjacent back cover plate 1 only need to be separated from the clamping cavities 153. Therefore, the sealing structure of the rear cover of the display screen is convenient to disassemble and assemble while ensuring the sealing effect, and is beneficial to improving the replacement efficiency of the display screen.

The present embodiment is only for explanation of the present utility model and is not to be construed as limiting the present utility model, and modifications to the present embodiment, which may not creatively contribute to the present utility model as required by those skilled in the art after reading the present specification, are all protected by patent laws within the scope of claims of the present utility model.

Claims (10)

1. A lid seal structure behind display screen, its characterized in that: including back shroud (1), sealing strip (2), layering (3) and fastener (4), offer on the week side face of back shroud (1) the confession layering (3) card goes into first caulking groove (11), one side card of sealing strip (2) goes into in first caulking groove (11) and presss from both sides tight back shroud (1) with between layering (3), the opposite side overhang of sealing strip (2) is in the week side of back shroud (1), adjacent two of display screen back shroud seal structure sealing strip (2) offset in order to seal two gap between back shroud (1), fastener (4) wear to establish simultaneously in back shroud (1), sealing strip (2) and layering (3).

2. The display screen rear cover sealing structure according to claim 1, wherein: the rear cover plate (1) is provided with a convex column (12) in the first caulking groove (11), and the sealing strip (2) is provided with a first fixing hole (211) for the convex column (12) to penetrate through.

3. The display screen rear cover sealing structure according to claim 2, wherein: the convex column (12) is provided with a second fixing hole (121) for the fastener (4) to penetrate through.

4. The display screen rear cover sealing structure according to claim 1, wherein: the sealing strip (2) comprises a fixing portion (21), a connecting portion (22) and an abutting portion (23) which are sequentially connected, a second caulking groove (13) communicated with the first caulking groove (11) is formed in the peripheral surface of the back cover plate (1), the fixing portion (21) is clamped in the first caulking groove (11), the fastener (4) is arranged on the fixing portion (21) in a penetrating mode, the connecting portion (22) is clamped in the second caulking groove (13), and one side, away from the connecting portion (22), of the abutting portion (23) stretches out of the second caulking groove (13) and is suspended on the peripheral side of the back cover plate (1).

5. The back cover seal structure of claim 4, wherein: the abutting portion (23) is curved in a front side direction near the rear cover plate (1).

6. The back cover seal structure of claim 4, wherein: the pressing strip (3) comprises a base strip (31) and a first limiting strip (32) connected to one side of the base strip (31), the base strip (31) is propped against the fixing portion (21), the first limiting strip (32) is propped against the connecting portion (22), and a third fixing hole (311) for the fastener (4) to penetrate is formed in the base strip (31).

7. The display screen rear cover sealing structure according to claim 6, wherein: the pressing strip (3) further comprises a second limiting strip (33) connected with the base strip (31), the second limiting strip (33) and the first limiting strip (32) are located on two opposite sides of the base strip (31), and the fixing part (21) is clamped between the first limiting strip (32) and the second limiting strip (33).

8. The display screen rear cover sealing structure according to claim 6, wherein: the base strip (31) is provided with a sleeve (312) at the edge of the third fixing hole (311).

9. The display screen rear cover sealing structure according to claim 1, wherein: a clamping strip (14) is arranged on one circumferential side of the rear cover plate (1), and a clamping seat (15) suitable for clamping the clamping strip (14) is arranged on the other circumferential side of the rear cover plate (1); when the two adjacent display screen rear cover sealing structures are spliced, the clamping strip (14) of one display screen rear cover sealing structure is clamped in the clamping seat (15) of the other display screen rear cover sealing structure.

10. The display screen rear cover sealing structure according to claim 9, wherein: the clamping seat (15) comprises a first limiting block (151) and a second limiting block (152), and the first limiting block (151) and the second limiting block (152) are arranged at intervals and are provided with a clamping cavity (153) for clamping the clamping strip (14).