Rear shell assembly of arc-shaped screen and arc-shaped screen

Abstract

The utility model provides a rear shell assembly of an arc screen and the arc screen, the rear shell assembly of the arc screen comprises a plurality of rear shells which are spliced and connected, and each rear shell comprises a shell body; the slot is formed in the first side of the shell body; the inserting block is arranged on the second side, opposite to the first side of the shell body, of the shell body, and a limiting inclined plane is arranged on the front surface of the inserting block; in the direction from the second side of the shell body to the first side of the shell body, the distance between the limiting inclined face of the inserting block of one of the two adjacent rear shells and the front surface of the inserting groove of the other of the two adjacent rear shells is gradually reduced, and the inserting block can swing in the inserting groove and is provided with a first limiting position. When the inserting block is located at the first limiting position, the limiting inclined face abuts against the front surface of the inserting groove in a matched mode. According to the technical scheme, the problem that in the related technology, when an outer arc screen is formed, the angle between every two adjacent rear shells is large, and the lamp panel is prone to being damaged is effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of LED display, in particular to a rear shell component of a curved screen and the curved screen. Background Art

[0002] The arc screen includes a light board and a plurality of rear shells arranged at the rear side of the light board. The plurality of rear shells are fixedly connected to the light board, and the angle between two adjacent rear shells is changed so that the front surface of the light board forms an inner arc surface or an outer arc surface to form an inner arc screen or an outer arc screen.

[0003] In the related art, two adjacent rear shells are connected by hinges. When forming an outer arc screen, the angle between the two adjacent rear shells is likely to be large, so that the lamp board fixed on the front side of the rear shell is likely to bend excessively and damage the lamp board. Utility Model Content

[0004] The main purpose of the utility model is to provide a rear shell assembly of a curved screen and a curved screen, so as to solve the problem in the related art that when forming an outer curved screen, the angle between two adjacent rear shells is large, which easily damages the light board.

[0005] In order to achieve the above-mentioned purpose, according to one aspect of the utility model, a back shell assembly of a curved screen is provided, comprising: a plurality of back shells spliced ​​together, each back shell comprising: a shell body; a slot arranged on a first side of the shell body; an insert block arranged on a second side of the shell body opposite to the first side of the shell body, and a limiting inclined surface is arranged on the front surface of the insert block; wherein, in the direction from the second side of the shell body to the first side of the shell body, the distance between the limiting inclined surface of the insert block of one of the two adjacent back shells and the front surface of the slot of the other of the two adjacent back shells gradually decreases, the insert block can swing in the slot and has a first limiting position, and when the insert block is in the first limiting position, the limiting inclined surface abuts and cooperates with the front surface of the slot.

[0006] Furthermore, the plug block includes a first block connected to the first side of the shell body and a second block connected to the first block, the limiting slope is arranged on the front surfaces of the first block and the second block, and the width of the first block is smaller than the width of the second block; the slot is provided with a notch that passes through the first side of the shell body, and the width of the notch is greater than or equal to the width of the first block and smaller than the width of the second block; the plug block can move in the slot to have a second limiting position, and when the plug block is in the second limiting position, the side surface of the second block abuts against the side wall of the slot at the notch.

[0007] Furthermore, the slot includes a slot body and a contraction slot section connected to the slot body, the width of the slot body is greater than the width of the slot opening, the slot opening is arranged on the contraction slot section, and the slot side wall of the contraction slot section is provided with a first abutment slope located between the slot side wall of the slot body and the slot opening; the plug block also includes a second abutment slope connected between the first block and the second block; when the plug block is in the second limit position, the second abutment slope abuts and cooperates with the first abutment slope; when the plug block is in the first limit position, there is an adjustment gap between the second abutment slope and the first abutment slope.

[0008] Further, a first splicing slope is arranged on the side surface of the first side of the shell body, and the first splicing slope is arranged to be gradually inclined backward along the direction from the first side of the shell body to the second side of the shell body; and / or, a second splicing slope is arranged on the side surface of the second side of the shell body, and the second splicing slope is arranged to be gradually inclined backward along the direction from the second side of the shell body to the first side of the shell body.

[0009] Furthermore, the rear shell assembly of the curved screen also includes: a lock slot, which is arranged on a third side of the shell body adjacent to the first side of the shell body; a lock core, which is arranged on a fourth side of the shell body opposite to the third side of the shell body, the lock core includes an operating handle, a lock body connected to the operating handle, and a lock tongue arranged on the lock body, in a direction perpendicular to the second side of the shell body to the first side of the shell body, the lock body of one of the two adjacent rear shells can be rotatably arranged on the shell body so that the lock tongue has a locking position extending into the lock slot of the other rear shell of the two adjacent rear shells and an avoidance position avoiding the lock slot; wherein a first accommodating slot for accommodating the lock core is arranged on the shell body, and the rear shell assembly of the curved screen also includes a cover plate, the lock body can be rotatably arranged in the first accommodating slot and cooperate with the cover plate stopper, and the operating handle extends to the outside of the cover plate.

[0010] Furthermore, the rear shell assembly of the curved screen also includes an elastic abutment arranged on the lock body, and an annular groove for accommodating the elastic abutment is arranged on the lock body, and part of the elastic abutment is located outside the annular groove and abuts against the cover plate.

[0011] Furthermore, the rear shell assembly of the curved screen also includes a positioning structure arranged between the first accommodating groove and the lock body, the positioning structure includes a positioning hole and a positioning bead, the positioning hole is arranged on one of the first accommodating groove and the lock body, the positioning bead can be floatably arranged on the other of the first accommodating groove and the lock body, and the positioning bead floats to have a positioning position extending into the positioning hole and a retracted position avoiding the positioning hole.

[0012] Furthermore, a guide portion is provided on one end of the lock tongue away from the lock body, and a thickness of the guide portion gradually decreases in a direction from approaching the lock body to away from the lock body.

[0013] According to another aspect of the utility model, a curved screen is provided, comprising a light board and a rear shell assembly arranged at the rear side of the light board, and the rear shell assembly is the rear shell assembly of the curved screen mentioned above.

[0014] Further, the arc screen also includes an adjustment mechanism, which includes: a first mounting seat; a second mounting seat, which is spaced apart from the first mounting seat; a sleeve, which is hinged on the first mounting seat; a connecting rod, the first end of the connecting rod is telescopically arranged in the sleeve, the second end of the connecting rod is hinged on the second mounting seat, and a mounting groove is arranged on the connecting rod, the mounting groove includes a second receiving groove and a positioning groove, and there are multiple positioning grooves, and the multiple positioning grooves are spaced apart on the side wall of the second receiving groove; a connecting beam, which is arranged at an angle to the sleeve and connected to the sleeve; a pressing handle, which is movably arranged on the connecting beam; a swinging member, which is swingably arranged in the connecting beam, the first end of the swinging member has a positioning position and an unlocking position, the first end of the swinging member extends into the second receiving groove, when the first end of the swinging member is in the positioning position, the first end of the swinging member is positioned and matched with one of the multiple positioning grooves; when the first end of the swinging member is in the unlocking position, the first end of the swinging member is separated from the positioning groove; wherein the pressing handle moves toward the connecting beam to drive the second end of the swinging member to swing, so that the first end of the swinging member switches from the positioning position to the unlocking position.

[0015] By applying the technical solution of the utility model, the rear shell assembly of the curved screen includes a plurality of rear shells connected by splicing. Each rear shell includes: a shell body, a slot and an insert block. The slot is arranged on the first side of the shell body. The insert block is arranged on the second side of the shell body arranged opposite to the first side of the shell body. A limiting inclined surface is arranged on the front surface of the insert block. Among them, in the direction from the second side of the shell body to the first side of the shell body, the distance between the limiting inclined surface of the insert block of one of the two adjacent rear shells and the front surface of the slot of the other of the two adjacent rear shells gradually decreases. The insert block can swing in the slot and has a first limiting position. When the insert block is in the first limiting position, the limiting inclined surface abuts and cooperates with the front surface of the slot. In this way, the insert block is inserted into the slot, and when the angle between one of the two adjacent rear shells and the other of the two adjacent rear shells is adjusted, the insert block swings in the slot. Due to the setting of the limiting inclined surface, the angle at which one of the two adjacent rear shells swings backward relative to the other of the two adjacent rear shells can be limited, so that the angle formed between the two adjacent rear shells can be limited, so as to reduce the problem that when the outer arc screen is formed, the angle formed between the two adjacent rear shells is large, which causes the lamp board to be bent excessively and is easy to be damaged. Therefore, the technical solution of the present application effectively solves the problem in the related art that when the outer arc screen is formed, the angle between the two adjacent rear shells is large, which is easy to damage the lamp board. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0017] Figure 1 A rear view schematic diagram of an embodiment of a rear housing assembly of a curved screen according to the utility model is shown;

[0018] Figure 2 Shows Figure 1 A schematic diagram of the three-dimensional structure of the slot and the insert block of the rear shell assembly of the curved screen;

[0019] Figure 3 Shows Figure 1 A schematic cross-sectional view of the slot and the insert of the rear housing assembly of the curved screen;

[0020] Figure 4 Shows Figure 1 A schematic diagram of the three-dimensional structure of the lock core of the rear shell assembly of the curved screen;

[0021] Figure 5 Shows Figure 1 A schematic diagram of the exploded structure of the lock core of the rear shell assembly of the curved screen;

[0022] Figure 6 A schematic diagram of the three-dimensional structure of an embodiment of a curved screen according to the utility model is shown;

[0023] Figure 7 Shows Figure 6 A schematic diagram of a partially exploded structure of an adjustment mechanism of a curved screen;

[0024] Figure 8 Shows Figure 6 A schematic diagram of a partially exploded structure of the adjustment mechanism of the curved screen from another perspective.

[0025] The above drawings include the following reference numerals:

[0026] 100, light board;

[0027] 200, rear shell; 210, shell body; 211, first splicing inclined surface; 212, second splicing inclined surface; 213, first receiving groove;

[0028] 300, slot; 310, slot body; 311, contraction slot section;

[0029] 400, insert block; 410, first block; 420, second block; 430, limiting inclined surface; 440, second abutting inclined surface;

[0030] 500, lock slot;

[0031] 600, lock core; 610, operating handle; 620, lock body; 630, lock tongue; 640, guide part;

[0032] 700, cover plate;

[0033] 800, elastic abutment member;

[0034] 910, positioning hole; 920, positioning bead;

[0035] 11. First mounting seat; 12. Second mounting seat;

[0036] 21. sleeve; 22. connecting rod; 23. second receiving groove; 24. positioning groove;

[0037] 31. Connecting beam; 33. Pressing handle;

[0038] 40. Swinging piece. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means a limitation on the utility model and its application or use. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0040] like Figures 1 to 5 As shown, applying the technical solution of this embodiment, the rear shell assembly of the curved screen includes a plurality of rear shells 200 connected by splicing. Each rear shell 200 includes: a shell body 210, a slot 300 and an insert block 400. The slot 300 is arranged on the first side of the shell body 210. The insert block 400 is arranged on the second side of the shell body 210 which is arranged opposite to the first side of the shell body 210. A limiting inclined surface 430 is arranged on the front surface of the insert block 400. Among them, in the direction from the second side of the shell body 210 to the first side of the shell body 210, the distance between the limiting inclined surface 430 of the insert block 400 of one of the two adjacent rear shells 200 and the front surface of the slot 300 of the other rear shell 200 of the two adjacent rear shells 200 gradually decreases. The insert block 400 can swing in the slot 300 and has a first limiting position. When the insert block 400 is in the first limiting position, the limiting inclined surface 430 abuts and cooperates with the front surface of the slot 300.

[0041] In this way, the insert block 400 is inserted into the slot 300, and when the angle between one of the two adjacent rear shells 200 and the other of the two adjacent rear shells 200 is adjusted, the insert block 400 swings in the slot 300. Due to the setting of the limiting inclined surface 430, the angle of the rear shell 200 of one of the two adjacent rear shells 200 relative to the other of the two adjacent rear shells 200 can be limited, so that the angle formed between the two adjacent rear shells 200 can be limited, so as to reduce the problem that the lamp board 100 is bent excessively due to the large angle formed between the two adjacent rear shells 200 when forming the outer arc screen, which is easy to damage the lamp board 100. Therefore, the technical solution of this embodiment effectively solves the problem in the related art that the angle between the two adjacent rear shells is large when forming the outer arc screen, which is easy to damage the lamp board.

[0042] It should be noted that, in the direction from the second side of the shell body 210 to the first side of the shell body 210, the distance between the limiting inclined surface 430 of the inserting block 400 of one of the two adjacent rear shells 200 and the front surface of the slot 300 of the other of the two adjacent rear shells 200 gradually decreases. In this way, when the angle between the two adjacent rear shells 200 is adjusted, one of the two adjacent rear shells 200 swings backwards, so that one of the two adjacent rear shells 200 swings along the contact point between the limiting inclined surface 430 and the front surface of the slot 300 of the other of the two adjacent rear shells 200. When one of the two adjacent rear shells 200 swings until the limiting inclined surface 430 is in contact with the front surface of the slot 300, the inserting block 400 is in the first limiting position, so that one of the two adjacent rear shells 200 stops swinging backwards, so as to limit the angle formed between the two adjacent rear shells 200 when the outer arc screen is formed.

[0043] like Figures 1 to 3As shown, the plug block 400 includes a first block 410 connected to the first side of the shell body 210 and a second block 420 connected to the first block 410, and a limiting inclined surface 430 is provided on the front surface of the first block 410 and the second block 420. The width of the first block 410 is smaller than the width of the second block 420. The slot 300 is provided with a notch penetrating the first side of the shell body 210, and the width of the notch is greater than or equal to the width of the first block 410 and smaller than the width of the second block 420. The plug block 400 can move in the slot 300 to have a second limiting position. When the plug block 400 is in the second limiting position, the side surface of the second block 420 abuts against the side wall of the slot at the notch. In this way, the second block 420 can stop and cooperate with the side wall of the slot 300 at the notch to reduce the possibility of the plug block 400 coming out of the slot 300. Furthermore, when the inner arc screen is formed, the distance between the side surface of the second side of one of the two adjacent rear shells 200 and the side surface of the first side of the other of the two adjacent rear shells 200 gradually increases from front to back, and the plug-in block 400 of one of the two adjacent rear shells 200 is driven to move in the slot 300 of the other of the two adjacent rear shells 200. When the two adjacent rear shells 200 swing to make the plug-in block 400 of one of the two adjacent rear shells 200 in the second limit position, the side surface of the second block 420 abuts against the side wall of the groove at the notch to limit the swing between the two adjacent rear shells 200, thereby reducing the possibility of excessive bending of the lamp board 100 and damage to the lamp board 100 due to the small angle between the two adjacent rear shells 200 when the inner arc screen is formed.

[0044] like Figures 1 to 3As shown, the slot 300 includes a slot body 310 and a contraction slot section 311 connected to the slot body 310. The width of the slot body 310 is greater than the width of the slot opening. The slot opening is arranged on the contraction slot section 311. The slot sidewall of the contraction slot section 311 is provided with a first abutting inclined surface located between the slot sidewall of the slot body 310 and the slot opening. The insert block 400 also includes a second abutting inclined surface 440 connected between the first block 410 and the second block 420. When the insert block 400 is in the second limiting position, the second abutting inclined surface 440 abuts and cooperates with the first abutting inclined surface. When the insert block 400 is in the first limiting position, there is an adjustment gap between the second abutting inclined surface 440 and the first abutting inclined surface. The arrangement of the first abutting inclined surface and the second abutting inclined surface 440 makes it possible for the abutting fit of the inserting block 400 of one of the two adjacent rear shells 200 with the groove side wall of the slot 300 of the other of the two adjacent rear shells 200 to be more reliable when the inserting block 400 of one of the two adjacent rear shells 200 is in the second limiting position, so that the angle restriction between the two adjacent rear shells 200 is more reliable, further reducing the probability of damage to the light board 100. The arrangement of the adjustment gap facilitates the movement and swinging of the inserting block 400 in the slot 300, so that the angle between the two adjacent rear shells 200 can be adjusted.

[0045] like Figures 1 to 3 As shown, a first splicing slope 211 is provided on the side surface of the first side of the shell body 210, and the first splicing slope 211 is gradually tilted backward along the direction from the first side of the shell body 210 to the second side of the shell body 210. A second splicing slope 212 is provided on the side surface of the second side of the shell body 210, and the second splicing slope 212 is gradually tilted backward along the direction from the second side of the shell body 210 to the first side of the shell body 210. The first splicing slope 211 and the second splicing slope 212 are provided so that the first splicing slope 211 and the second splicing slope 212 can abut and cooperate when forming an outer arc screen, so as to limit the backward swing of one of the two adjacent rear shells 200 relative to the other of the two adjacent rear shells 200. The problem of damage to the light board 100 caused by the excessively large angle between the two adjacent rear shells 200 is further reduced.

[0046] In other embodiments, a first splicing slope 211 is provided on the side surface of the first side of the shell body 210, and the first splicing slope 211 is gradually tilted backward along the direction from the first side of the shell body 210 to the second side of the shell body 210. Alternatively, a second splicing slope 212 is provided on the side surface of the second side of the shell body 210, and the second splicing slope 212 is gradually tilted backward along the direction from the second side of the shell body 210 to the first side of the shell body 210.

[0047] In other embodiments, a first splicing straight surface is provided on the side surface of the first side of the shell body 210, and a second splicing straight surface is provided on the side surface of the second side of the shell body 210. There is an avoidance gap between the second splicing straight surface of one of the two adjacent rear shells 200 and the first splicing straight surface of the other of the two adjacent rear shells 200. A light board 100 is fixed to the front side of the two adjacent rear shells 200.

[0048] like Figures 1 to 3 As shown, the slot 300 also includes an opening that penetrates the rear surface of the shell body 210. The opening is provided to facilitate the insertion of the plug 400 of one of the two adjacent rear shells 200 into the slot 300 of the other of the two adjacent rear shells 200, which is convenient for processing and assembly.

[0049] like Figure 4 and Figure 5 As shown, the rear shell assembly of the curved screen also includes a lock slot 500 and a lock core 600. The lock slot 500 is arranged on the third side of the shell body 210 adjacent to the first side of the shell body 210. The lock core 600 is arranged on the fourth side of the shell body 210 opposite to the third side of the shell body 210. The lock core 600 includes an operating handle 610, a lock body 620 connected to the operating handle 610, and a lock tongue 630 arranged on the lock body 620. In the direction perpendicular to the second side of the shell body 210 to the first side of the shell body 210, the lock body 620 of one of the two adjacent rear shells 200 is rotatably arranged on the shell body 210 so that the lock tongue 630 has a locking position extending into the lock slot 500 of the other rear shell 200 of the two adjacent rear shells 200 and a evasive position evading the lock slot 500. Among them, the shell body 210 is provided with a first receiving groove 213 for accommodating the lock core 600, and the rear shell assembly of the curved screen also includes a cover plate 700, and the lock body 620 is rotatably arranged in the first receiving groove 213 and cooperates with the cover plate 700 to stop, and the operating handle 610 extends to the outside of the cover plate 700. In this way, when the curved screen is spliced ​​in the up and down directions, the two rear shells 200 adjacent in the up and down directions can be connected by switching the lock tongue 630 to the locking position, so as to reduce the distance between the front surfaces of the two rear shells 200 adjacent in the up and down directions in the front and rear directions, thereby reducing the height difference between the front surfaces of the two light panels 100 adjacent in the up and down directions, so as to improve the display effect. The setting of the cover plate 700 facilitates the setting and fixing of the lock body 620, and the setting of the operating handle 610 facilitates the operator to drive the lock body 620 at the rear of the rear shell 200, so as to switch the lock tongue 630 between the locking position and the avoidance position.

[0050] like Figure 4 and Figure 5As shown, the rear shell assembly of the curved screen also includes an elastic abutment 800 arranged on the lock body 620. An annular groove for accommodating the elastic abutment 800 is arranged on the lock body 620, and part of the elastic abutment 800 is located outside the annular groove and abuts against the cover plate 700. The provision of the elastic abutment 800 can reduce the shaking of the lock body 620 in the first accommodating groove 213, thereby reducing the movement of the lock body 620 in the front-to-back direction. In this way, the two rear shells 200 adjacent in the upper and lower directions are more stable when connected by the lock tongue 630 and the lock groove 500. The displacement of the two rear shells 200 adjacent in the upper and lower directions in the front-to-back direction caused by the movement of the lock body 620 in the front-to-back direction is reduced, and the height difference between the front surfaces of the two adjacent light panels 100 in the upper and lower directions is further reduced.

[0051] like Figure 4 and Figure 5 As shown, the rear shell assembly of the curved screen also includes a positioning structure arranged between the first receiving groove 213 and the lock body 620, and the positioning structure includes a positioning hole 910 and a positioning bead 920. The positioning hole 910 is arranged on the first receiving groove 213, and the positioning bead 920 can be floated on the lock body 620. The positioning bead 920 floats to have a positioning position extending into the positioning hole 910 and a retracted position avoiding the positioning hole 910. The setting of the positioning bead 920 facilitates the operator to judge whether the lock tongue 630 is in the locking position or the avoiding position through the sound and feel when the positioning bead 920 floats and extends into the positioning hole 910.

[0052] In other embodiments, the positioning hole 910 is disposed on the lock body 620 , and the positioning bead 920 can be floatingly disposed on the first receiving groove 213 .

[0053] like Figure 4 and Figure 5 As shown, a guide portion 640 is provided on one end of the lock tongue 630 away from the lock body 620, and the thickness of the guide portion 640 gradually decreases in the direction from close to the lock body 620 to away from the lock body 620. The provision of the guide portion 640 facilitates the operation of inserting the lock tongue 630 into the lock slot 500, so that the lock tongue 630 can be switched from the avoidance position to the locking position more smoothly. In this embodiment, the maximum thickness of the lock tongue 630 along the front-to-back direction is equal to the maximum distance of the side wall of the lock slot 500 along the front-to-back direction.

[0054] The present application also provides a curved screen, which includes a light board 100 and a rear shell assembly arranged at the rear side of the light board 100, and the rear shell assembly is the rear shell assembly of the curved screen described above. Since the rear shell assembly of the curved screen described above can solve the problem in the related art that the angle between two adjacent rear shells is large when forming an outer arc screen, which easily damages the light board, the curved screen having the rear shell assembly can solve the same technical problem.

[0055] like Figures 6 to 8 As shown, the arc screen also includes an adjustment mechanism, which includes: a first mounting seat 11, a second mounting seat 12, a sleeve 21, a connecting rod 22, a connecting beam 31, a pressing handle 33 and a swinging member 40. The second mounting seat 12 is spaced apart from the first mounting seat 11. The sleeve 21 is hinged on the first mounting seat 11. The first end of the connecting rod 22 is telescopically arranged in the sleeve 21, and the second end of the connecting rod 22 is hinged on the second mounting seat 12. A mounting groove is arranged on the connecting rod 22, and the mounting groove includes a second receiving groove 23 and a positioning groove 24. There are multiple positioning grooves 24, and the multiple positioning grooves 24 are spaced apart on the side wall of the second receiving groove 23. The connecting beam 31 is arranged at an angle with the sleeve 21 and connected to the sleeve 21. The pressing handle 33 is movably arranged on the connecting beam 31. The swinging member 40 is swingably arranged in the connecting beam 31, and the first end of the swinging member 40 has a positioning position and an unlocking position, and the first end of the swinging member 40 extends into the second receiving groove 23. When the first end of the swing member 40 is in the positioning position, the first end of the swing member 40 is positioned and matched with one of the plurality of positioning grooves 24. When the first end of the swing member 40 is in the unlocking position, the first end of the swing member 40 is separated from the positioning groove 24. The pressing handle 33 moves toward the connecting beam 31 to drive the second end of the swing member 40 to swing, so that the first end of the swing member 40 switches from the positioning position to the unlocking position.

[0056] In this way, the first mounting seat 11 and the second mounting seat 12 are respectively fixed at the two ends of the display unit, and the distance between the first mounting seat 11 and the second mounting seat 12 is adjusted by adjusting the extension and contraction of the connecting rod 22 relative to the sleeve 21, so as to adjust the curvature of the arc surface formed by the front surface of the display unit. The connecting rod 22 is provided with a mounting groove, and the mounting groove includes a second receiving groove 23 and a positioning groove 24. There are multiple positioning grooves 24, and the multiple positioning grooves 24 are arranged on the side wall of the second receiving groove 23 at intervals. The connecting beam 31 is arranged at an angle with the sleeve 21 and connected to the sleeve 21. The pressing handle 33 is movably arranged on the connecting beam 31. The swinging member 40 is swingably arranged in the connecting beam 31, and the first end of the swinging member 40 has a positioning position and an unlocking position, and the first end of the swinging member 40 extends into the second receiving groove 23. When the first end of the swinging member 40 is in the positioning position, the first end of the swinging member 40 is positioned and matched with one of the multiple positioning grooves 24. When the first end of the swing member 40 is in the unlocked position, the first end of the swing member 40 is separated from the positioning groove 24. In this way, by controlling the swing of the swing member 40, the first end of the swing member 40 can be switched between the positioning position and the unlocked position. When the first end of the swing member 40 is in the positioning position, the first end of the swing member 40 is positioned and matched with one of the plurality of positioning grooves 24 to limit the extension and contraction of the connecting rod 22 relative to the sleeve 21, so that the connecting rod 22 can be fixed relative to the sleeve 21, so that the distance between the first mounting seat 11 and the second mounting seat 12 can be fixed, and then the curvature of the arc-shaped surface formed by the front surface of the display unit is fixed. When the first end of the swing member 40 is in the unlocked position, the first end of the swing member 40 is separated from the positioning groove 24, and the first end of the swing member 40 can move in the second accommodating groove 23, so that the connecting rod 22 can be extended and contracted relative to the sleeve 21, so that the distance between the first mounting seat 11 and the second mounting seat 12 can be adjusted, and then the curvature of the arc-shaped surface formed by the front surface of the display unit can be adjusted. The pressing handle 33 moves toward the connecting beam 31 to drive the second end of the swinging member 40 to swing, so that the first end of the swinging member 40 switches from the positioning position to the unlocking position. The setting of the pressing handle 33 facilitates the operator to drive the second end of the swinging member 40 to swing by driving the pressing handle 33, so that the distance between the first mounting seat 11 and the second mounting seat 12 can be adjusted or fixed. Therefore, the technical solution of this embodiment effectively solves the problem in the related art that the curvature of the curved screen display surface needs to be adjusted by replacing different boxes, resulting in low work efficiency.

[0057] In this embodiment, the first mounting seat 11, the second mounting seat 12, the sleeve 21, the connecting rod 22 and the swinging member 40 are respectively arranged at two ends of the connecting beam 31. The arrangement of the connecting beam 31 facilitates the connection of the two sleeves 21 and the arrangement of the swinging member 40 and the pressing handle 33.

[0058] In this embodiment, the connecting rod 22 is telescopic relative to the sleeve 21 so that the distance between the first mounting seat 11 and the second mounting seat 12 can be changed. When the distance between the first mounting seat 11 and the second mounting seat 12 is equal to a preset value, the outer surface of the front surface of the display unit is a flat screen. When the distance between the first mounting seat 11 and the second mounting seat 12 is less than the preset value, the outer surface of the front surface of the display unit is an outer arc screen. When the distance between the first mounting seat 11 and the second mounting seat 12 is greater than the preset value, the outer surface of the front surface of the display unit is an inner arc screen.

[0059] In the description of the present utility model, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present utility model; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0060] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the utility model.

[0061] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A rear housing assembly of a curved screen, characterized in that: include: A plurality of spliced ​​connected rear shells (200), each of the rear shells (200) comprising: Shell body (210); A slot (300) disposed on a first side of the shell body (210); An insert block (400) is arranged on a second side of the shell body (210) opposite to the first side of the shell body (210), and a limiting inclined surface (430) is arranged on the front surface of the insert block (400); Wherein, in the direction from the second side of the shell body (210) to the first side of the shell body (210), the distance between the limiting inclined surface (430) of the plug block (400) of one of the two adjacent rear shells (200) and the front surface of the slot (300) of the other of the two adjacent rear shells (200) gradually decreases, and the plug block (400) can swing in the slot (300) and has a first limiting position. When the plug block (400) is in the first limiting position, the limiting inclined surface (430) abuts against the front surface of the slot (300).

2. The rear housing assembly of the curved screen according to claim 1, characterized in that: The insert block (400) comprises a first block (410) connected to a first side of the shell body (210) and a second block (420) connected to the first block (410), the limiting inclined surface (430) is arranged on the front surfaces of the first block (410) and the second block (420), and the width of the first block (410) is smaller than the width of the second block (420); The slot (300) is provided with a notch penetrating the first side of the shell body (210), and the width of the notch is greater than or equal to the width of the first block (410) and less than the width of the second block (420); The insert block (400) can move in the slot (300) to have a second limiting position, and when the insert block (400) is in the second limiting position, the side surface of the second block body (420) abuts against the slot side wall at the notch.

3. The rear housing assembly of the curved screen according to claim 2, characterized in that: The slot (300) comprises a slot body (310) and a contraction slot section (311) connected to the slot body (310); the width of the slot body (310) is greater than the width of the slot opening; the slot opening is arranged on the contraction slot section (311); a first abutment slope located between the slot side wall of the slot body (310) and the slot opening is arranged on the slot side wall of the contraction slot section (311); the insert block (400) further comprises a second abutment slope (440) connected between the first block body (410) and the second block body (420); When the insert block (400) is in the second limit position, the second abutment slope (440) abuts and cooperates with the first abutment slope; when the insert block (400) is in the first limit position, an adjustable gap is provided between the second abutment slope (440) and the first abutment slope.

4. The rear housing assembly of the curved screen according to claim 1, characterized in that: A first splicing slope (211) is arranged on the side surface of the first side of the shell body (210), and the first splicing slope (211) is arranged to be gradually inclined backwards along the direction from the first side of the shell body (210) to the second side of the shell body (210); and / or, A second splicing slope (212) is arranged on the side surface of the second side of the shell body (210), and the second splicing slope (212) is arranged to be gradually inclined backwards along the direction from the second side of the shell body (210) to the first side of the shell body (210).

5. The rear housing assembly of the curved screen according to claim 1, characterized in that: The rear housing assembly of the curved screen also includes: A locking groove (500) is arranged on a third side of the shell body (210) adjacent to the first side of the shell body (210); A lock core (600) is arranged on a fourth side of the shell body (210) which is arranged opposite to the third side of the shell body (210), the lock core (600) comprising an operating handle (610), a lock body (620) connected to the operating handle (610), and a lock tongue (630) arranged on the lock body (620), in a direction perpendicular to the second side of the shell body (210) to the first side of the shell body (210), the lock body (620) of one of the two adjacent rear shells (200) is rotatably arranged on the shell body (210) so that the lock tongue (630) has a locking position extending into the lock groove (500) of the other of the two adjacent rear shells (200) and a avoiding position avoiding the lock groove (500); In which, a first receiving groove (213) for receiving the lock core (600) is provided on the shell body (210), and the rear shell assembly of the arc screen also includes a cover plate (700), the lock body (620) is rotatably arranged in the first receiving groove (213) and cooperates with the cover plate (700) stopper, and the operating handle (610) extends to the outside of the cover plate (700).

6. The rear housing assembly of the curved screen according to claim 5, characterized in that: The rear shell assembly of the arc-shaped screen also includes an elastic abutment (800) arranged on the lock body (620), and the lock body (620) is provided with an annular groove for accommodating the elastic abutment (800), and part of the elastic abutment (800) is located outside the annular groove and abuts against the cover plate (700).

7. The rear housing assembly of the curved screen according to claim 5, characterized in that: The rear shell assembly of the curved screen also includes a positioning structure arranged between the first receiving groove (213) and the lock body (620), and the positioning structure includes a positioning hole (910) and a positioning bead (920). The positioning hole (910) is arranged on one of the first receiving groove (213) and the lock body (620), and the positioning bead (920) can be floatably arranged on the other of the first receiving groove (213) and the lock body (620). The positioning bead (920) floats to have a positioning position extending into the positioning hole (910) and a retracted position avoiding the positioning hole (910).

8. The rear housing assembly of the curved screen according to claim 5, characterized in that: A guide portion (640) is provided on one end of the lock tongue (630) away from the lock body (620), and the thickness of the guide portion (640) gradually decreases in a direction from approaching the lock body (620) to away from the lock body (620).

9. A curved screen, comprising a light board (100) and a rear housing assembly arranged at the rear side of the light board (100), characterized in that: The rear shell assembly is the rear shell assembly of the curved screen according to any one of claims 1 to 8.

10. The curved screen according to claim 9, characterized in that: The curved screen also includes an adjustment mechanism, which includes: A first mounting seat (11); A second mounting seat (12) is spaced apart from the first mounting seat (11); A sleeve (21) is hinged on the first mounting seat (11); A connecting rod (22), wherein a first end of the connecting rod (22) is telescopically arranged in the sleeve (21), and a second end of the connecting rod (22) is hinged on the second mounting seat (12). A mounting groove is arranged on the connecting rod (22), and the mounting groove comprises a second receiving groove (23) and a positioning groove (24). There are a plurality of positioning grooves (24), and the plurality of positioning grooves (24) are arranged at intervals on the side wall of the second receiving groove (23); A connecting beam (31) is arranged at an angle to the sleeve (21) and connected to the sleeve (21); A pressing handle (33) movably arranged on the connecting beam (31); A swinging member (40) is swingably disposed in the connecting beam (31); the first end of the swinging member (40) has a positioning position and an unlocking position; the first end of the swinging member (40) extends into the second receiving groove (23); when the first end of the swinging member (40) is in the positioning position, the first end of the swinging member (40) is positioned and matched with one of the plurality of positioning grooves (24); when the first end of the swinging member (40) is in the unlocking position, the first end of the swinging member (40) is separated from the positioning groove (24); The pressing handle (33) moves toward the connecting beam (31) to drive the second end of the swing member (40) to swing, so that the first end of the swing member (40) switches from the positioning position to the unlocking position.

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