Splicing type LED display screen backboard

Abstract

The utility model relates to a splicing type LED display screen back plate which comprises a back plate body and a plug pin plate installed at the top of the back plate body in a sliding mode, the bottom of the back plate body is provided with a plug pin groove used for allowing the plug pin plate on the adjacent back plate body to be connected in an inserted mode, and the plug pin plate is rotationally installed on a locking rotary knob; the backboard main body is provided with a locking groove for the locking knob to slide up and down; the backboard body is provided with a first locking protruding block used for limiting the locking rotary knob from sliding downwards. The display pin plate has an ejection state and a reset state; and when the bolt plate is in an ejection state, the locking knob is propped against the top surface of the first locking bump. The connection stability of the two adjacent back plate main bodies can be ideal.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of LED display screens, in particular to a splicable LED display screen backboard. BACKGROUND

[0002] With the rapid development of display technology, the demand for large-size display screens is increasing, and it is difficult to directly manufacture large-size screens, so it is common to splice multiple small-size LED display screen units to form a large-size LED display screen, and the LED display screen unit comprises an LED display screen backboard and an LED screen mounted on the display screen backboard.

[0003] In the prior art, the LED display screen backboard comprises a backboard body and a latch plate slidably mounted on the top of the backboard body, and the bottom of the backboard body is provided with a latch slot for carding with the latch plate of the LED display screen backboard located below. When installing two adjacent LED display screen backboards, the latch plate on the backboard body located below is pushed out to extend to the outside, and then the latch slot of the backboard body located above is carded with the latch plate of the backboard body located below, so that the two backboard bodies are connected together, thereby realizing the splicing of the two LED display screen units.

[0004] For the related technology in the above, the inventor believes that the latch plate cannot be fixed when it is pushed out to extend to the outside, so that the latch plate has a probability of returning when the two backboard bodies are installed, so that the two adjacent backboard bodies are not stably connected. CONTENT OF THE UTILITY MODEL

[0005] In order to improve the stability of the connection of the two adjacent backboard bodies, the present application provides a splicable LED display screen backboard.

[0006] The splicable LED display screen backboard provided by the present application adopts the following technical scheme:

[0007] A splicable LED display screen backboard comprises a backboard body and a latch plate slidably mounted on the top of the backboard body, the bottom of the backboard body has a latch slot for inserting the latch plate on the adjacent backboard body, and further comprises a locking knob rotatably mounted on the latch plate; the backboard body is provided with a locking slot for the up-down sliding of the locking knob; the backboard body is provided with a first locking protrusion for limiting the downward sliding of the locking knob; the latch plate has an ejection state and a reset state; when the latch plate is in the ejection state, the locking knob abuts against the top surface of the first locking protrusion.

[0008] By adopting the technical scheme, when two adjacent backboard bodies need to be spliced, the top of the plug-in plate is slid to the outside of the backboard body by pushing the locking knob of the backboard body on the lower side upwards, the top of the locking knob is abutted with the top surface of the first locking protrusion by rotating the locking knob, the downward sliding of the locking knob is limited, the downward movement of the plug-in plate is limited, the plug-in slot of the backboard body on the upper side can be clamped with the plug-in board of the backboard body on the lower side, and the stability of the connection of the two adjacent backboard bodies is ideal.

[0009] Optionally, the backboard body has a sliding groove for arranging the sliding of the plug-in plate, and a first clamping groove and a second clamping groove are sequentially arranged on the two side walls of the sliding groove from bottom to top; the plug-in plate has an elastic clamping block for clamping cooperation with the first clamping groove / second clamping groove; when the plug-in plate is in a reset state, the elastic clamping block is clamped with the first clamping groove; when the plug-in plate is in an ejection state, the elastic clamping block is clamped with the second clamping groove.

[0010] By adopting the technical scheme, when the plug-in plate slides up and down and is in the reset state, the elastic clamping block can be clamped into the first clamping groove, so that the plug-in board is not easy to move when it is in the reset state; when the plug-in plate is in the ejection state, the elastic clamping block can be clamped into the second clamping groove, so that the plug-in plate is not easy to move when it is in the ejection state.

[0011] Optionally, the first clamping groove has a guide slope for guiding the elastic clamping block to the second clamping groove.

[0012] By adopting the technical scheme, the arrangement of the guide slope makes the elastic clamping block more smoothly slide from the first clamping groove to the second clamping groove.

[0013] Optionally, the plug-in plate and the backboard body are connected through a clamping structure; the clamping structure comprises a limiting clamping buckle arranged on the backboard body and a limiting groove arranged on the plug-in plate and used for clamping cooperation with the limiting clamping buckle.

[0014] By adopting the technical scheme, the plug-in plate and the backboard body are connected through the clamping structure, so that the installation of the plug-in plate is more convenient.

[0015] Optionally, the plug-in plate has a plug-in sleeve for mounting the locking knob, the locking knob has a rotating sleeve for rotating cooperation with the plug-in sleeve, and the inner diameter of the rotating sleeve is matched with the outer diameter of the plug-in sleeve.

[0016] By adopting the technical scheme, the connection relationship between the locking knob and the bolt plate is disclosed. The cooperation of the rotating sleeve and the rotating convex column enables the bolt plate to be pushed by the rotating sleeve through sliding while the locking knob can be rotated, so that when the bolt plate is in the ejection state, the locking knob can be rotated to abut against the first locking convex block to limit the downward movement of the locking knob.

[0017] Optionally, four positioning grooves are uniformly and circumferentially spaced apart on the inner side wall of the rotating sleeve, and the outer side wall of the bolt sleeve is circumferentially spaced apart and provided with positioning convex edges corresponding to the four positioning grooves.

[0018] By adopting the technical scheme, the four positioning grooves are uniformly and circumferentially spaced apart on the inner side wall of the rotating sleeve, and the cooperation of the four positioning grooves and the four positioning convex edges enables the locking knob to be clamped every 90 degrees when rotating, so that the stability of the locking knob in the horizontal or vertical state is ideal.

[0019] Optionally, the back plate body has a support portion extending to the locking groove, and a first support groove for abutting against the rotating sleeve is arranged on the top surface of the support portion; and a second support groove for abutting against the rotating sleeve is arranged on the top surface of the locking groove.

[0020] By adopting the technical scheme, when the bolt plate slides upward and is in the ejection state, the rotating sleeve can abut against the first support groove, so that the bolt plate is not easy to move; and when the bolt plate slides upward and is in the reset state, the rotating sleeve can abut against the second support groove, so that the bolt plate is not easy to move.

[0021] Optionally, a second locking convex block for limiting the upward sliding of the locking knob is arranged above the locking groove of the back plate body, and a locking arc groove for the first locking convex block / second locking convex block is arranged on the side of the locking knob facing the bolt plate along the axis direction.

[0022] By adopting the technical scheme, the second locking convex block enables the locking knob to abut against the bottom surface of the second locking convex block when moving upward in the vertical state, so as to limit the upward movement of the bolt plate. The arrangement of the locking arc groove can reduce the probability of interference between the locking knob and the first locking convex block / second locking convex block when rotating.

[0023] In summary, the present application has at least one of the following beneficial technical effects:

[0024] 1. A splicable LED display screen backboard, by setting the locking knob on the plug-in plate, when the plug-in plate is in the ejection state, the locking knob can abut the top surface of the first locking protrusion, and the locking knob can be limited to move downward, thereby limiting the downward movement of the plug-in plate, so that the stability of the connection of the adjacent two backboard bodies is ideal.

[0025] 2. By setting the first clamping groove and the second clamping groove in the sliding groove and the elastic clamping block in the plug-in plate, the cooperation of the elastic clamping block and the first clamping groove makes the stability of the plug-in plate in the reset state ideal, and the cooperation of the elastic clamping block and the second clamping groove makes the stability of the plug-in plate in the ejection state ideal.

[0026] 3. By setting four positioning grooves on the inner side wall of the rotating sleeve and positioning protrusions corresponding to the positioning grooves on the outer side wall of the plug-in sleeve, the stability of the locking knob in the horizontal or vertical state is ideal. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 is the overall structure schematic diagram of the embodiment of the application.

[0028] Figure 2 is the overall structure schematic diagram of the embodiment of the application.

[0029] Figure 3 is the structure schematic diagram of the plug-in plate in the embodiment of the application.

[0030] Figure 4 is the structure schematic diagram of the locking knob in the embodiment of the application.

[0031] Figure 5 is the structure schematic diagram of the locking slot in the embodiment of the application.

[0032] Figure 6 is Figure 2 is the local enlarged view of A in FIG.

[0033] Figure 7 is the structure schematic diagram of the cooperation of the plug-in plate and the sliding groove in the embodiment of the application.

[0034] Figure 8 is the structure schematic diagram of the cooperation of the locking knob and the second locking protrusion in the embodiment of the application.

[0035] Explanation of reference signs: 1, back plate main body; 11, bolt slot; 12, sliding slot; 13, bolt opening; 14, locking slot; 141, second support slot; 15, support part; 151, first locking protrusion; 152, first support slot; 16, limiting buckle; 161, limiting part; 162, buckle part; 1621, inclined surface; 17, first clamping slot; 18, second clamping slot; 19, second locking protrusion; 2, bolt plate; 21, bolt main body; 211, accommodation slot; 212, limiting slot; 2121, mounting slot section; 2122, sliding slot section; 22, bolt tongue; 23, bolt sleeve; 231, positioning protrusion; 24, elastic clamping block; 3, locking knob; 31, knob part; 311, locking arc slot; 32, rotating sleeve; 321, positioning slot. DETAILED DESCRIPTION

[0036] The following will be described in detail in combination with the accompanying drawings. Figures 1-8 The application is further described in detail.

[0037] The application discloses a splicable LED display screen back plate.

[0038] Reference will be made to Figure 1 and Figure 2 The splicable LED display screen back plate comprises a back plate main body 1, a bolt plate 2 slidably mounted on the back plate main body 1, and a locking knob 3 rotatably mounted on the bolt plate 2. The bottom of the back plate main body 1 is provided with a bolt slot 11 for inserting the bolt plate 2 on the adjacent back plate main body 1.

[0039] Reference will be made to Figure 3 The bolt plate 2 comprises a bolt main body 21, a bolt tongue 22 arranged on the top of the bolt main body 21, a bolt sleeve 23 arranged on the bolt main body 21, and elastic clamping blocks 24 arranged on both sides of the bolt main body 21. The bolt main body 21, the bolt tongue 22, the bolt sleeve 23, and the elastic clamping blocks 24 are integrally arranged. The bolt main body 21 is provided with an accommodation slot 211 for bending the elastic clamping blocks 24 on both sides towards the middle. The outer wall of the bolt sleeve 23 is uniformly and spacedly provided with four positioning protrusions 231 in the circumferential direction. The four positioning protrusions 231 are respectively located in the extension direction of two orthogonal axes in the sleeve cross section, wherein two positioning protrusions 231 are located at the two ends of the horizontal axis, and the other two positioning protrusions 231 are located at the two ends of the vertical axis. The cross section of the positioning protrusion 231 is semicircular.

[0040] Reference will be made to Figure 3 and Figure 4The locking knob 3 comprises a knob part 31 and a rotating sleeve 32 connected at the middle of the knob part 31. The inner diameter of the rotating sleeve 32 is adapted to the outer diameter of the bolt sleeve 23, and the rotating sleeve 32 is sleeved on the outside of the bolt sleeve 23. The inner side wall of the rotating sleeve 32 is uniformly and circumferentially spaced to be provided with four positioning grooves 321 corresponding to the four positioning protrusions 231 of the bolt sleeve 23. The locking knob 3 has a horizontal state and a vertical state after being rotated. When the two longer sides of the knob part 31 are arranged horizontally, the locking knob 3 is in the horizontal state. When the two longer sides of the knob part 31 are arranged vertically, the locking knob 3 is in the vertical state. When the locking knob 3 is in the horizontal state / vertical state, the four positioning grooves 321 can be clamped and matched with the four positioning protrusions 231 of the bolt sleeve 23, so that the stability of the locking knob 3 in the horizontal state / vertical state is ideal.

[0041] With reference to Figure 2 and Figure 5 , the back plate body 1 is provided with a sliding groove 12 for sliding arrangement of the bolt plate 2. The back plate body 1 is provided with a bolt hole 13 penetrating the upper and lower surfaces at the top surface of the sliding groove 12. The back plate body 1 is provided with a locking groove 14 penetrating the front and rear surfaces in the vertical direction at the sliding groove 12. The back plate body 1 further has a support part 15 extending from the bottom to the locking groove 14.

[0042] With reference to Figure 2 and Figure 6 , the bolt plate 2 and the back plate body 1 are connected by a buckle structure. The buckle structure comprises a limiting buckle 16 provided on the back plate body 1 and close to the sliding groove 12, and a limiting groove 212 provided on the bolt body 21 and used for clamping and matching with the limiting buckle 16. In the embodiment, the number of limiting buckles 16 is two and located on the two sides of the locking groove 14. The limiting buckle 16 comprises a limiting part 161 connected with the back plate body 1 and a buckle part 162 connected to the upper side of the limiting part 161. The two buckle parts 162 each have an inclined surface 1621 arranged towards the direction of approaching each other. The thickness of the limiting part 161 is less than the thickness of the bolt plate 2. The limiting groove 212 comprises an installation groove section 2121 and a sliding groove section 2122 from top to bottom. When the bolt plate 2 is installed in the sliding groove 12, the buckle part 162 can pass through the installation groove section 2121, so that the part of the bolt plate 2 located between the two limiting grooves 212 can be clamped below the two buckle parts 162.

[0043] With reference to Figure 6 and Figure 7When the latch plate 2 slides upward in the sliding groove 12, the latch tongue 22 can slide out of the latch opening 13 to the outside of the back plate body 1. When the latch plate 2 slides upward to a specified distance, the bottom surface of the limiting portion 161 can abut against the bottom surface of the sliding groove segment 2122, thereby limiting the latch plate 2 from continuously sliding upward. When the bottom of the latch plate 2 abuts against the bottom of the sliding groove 12, the latch plate 2 is in the reset state; when the latch tongue 22 of the latch plate 2 slides out of the latch opening 13 to the outside of the back plate body 1, the latch plate 2 is in the ejecting state.

[0044] With reference to Figure 7 , the back plate body 1 is provided with a first clamping groove 17 and a second clamping groove 18 from bottom to top on the two side walls of the sliding groove 12. When the latch plate 2 is in the reset state, the elastic clamping block 24 can be clamped into the first clamping groove 17; when the latch plate 2 is in the ejecting state, the elastic clamping block 24 can be clamped into the second clamping groove 18. The first clamping groove 17 has a guide inclined surface 171 for guiding the elastic clamping block to the second clamping groove 18.

[0045] With reference to Figure 1 and Figure 5 , in order to limit the downward sliding of the latch plate 2 in the ejecting state, the supporting portion 15 is provided with a first locking protrusion 151 at the top. By rotating the locking knob 3, the bottom of the knob portion 31 can abut against the top surface of the first locking protrusion 151 when the locking knob 3 is in the vertical state, thereby limiting the downward sliding of the latch plate 2.

[0046] With reference to Figure 4 and Figure 8 , in order to limit the upward movement of the latch plate 2 in the reset state, the back plate body 1 is provided with a second locking protrusion 19 above the locking groove 14. By rotating the locking knob 3, the top of the knob portion 31 can abut against the bottom surface of the second locking protrusion 19 when the latch plate 2 moves upward, thereby limiting the upward movement of the latch plate 2. The knob portion 31 is provided with a locking arc groove 311 on the side facing the latch plate 2 along the axis direction; when the latch plate 2 is in the reset position and the locking knob 3 is rotated, the locking knob 3 will not interfere with the first locking protrusion 151; when the latch plate 2 is in the ejecting state and the locking knob 3 is rotated, the locking knob 3 will not interfere with the second locking protrusion 19.

[0047] With reference to Figure 5 , in order to reduce the probability of left-right movement of the latch plate 2 in the reset state / ejecting state, the top surface of the supporting portion 15 is provided with a first supporting groove 152 for abutting against the rotating sleeve 32, and the back plate body 1 is provided with a second supporting groove 141 on the top surface of the locking groove 14.

[0048] The implementation principle of the embodiment of the splicable LED display screen backboard is as follows: the locking knob 3 is arranged on the plug-in plate 2, the first locking protrusion 151 is arranged on the backboard body 1, when the plug-in plate 2 is in the ejection state, the knob part 31 of the locking knob 3 can abut against the top surface of the first locking protrusion 151, the probability that the plug-in plate 2 can retreat to the reset state when the plug-in plate 2 is in the ejection state is reduced, and therefore the stability of the connection between the two adjacent backboard bodies 1 is ideal.

[0049] The above are preferred embodiments of the present application, and do not limit the protection scope of the present application, so: any equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A splicable LED display screen backboard, comprising a backboard body (1) and a plug-in plate (2) slidably mounted on the top of the backboard body (1), the bottom of the backboard body (1) is provided with a plug-in slot (11) for plugging the plug-in plate (2) on the adjacent backboard body (1), characterized in that, Further comprising a locking knob (3) rotatably mounted on the latch plate (2); the back plate body (1) is provided with a locking groove (14) for the locking knob (3) to slide up and down; the back plate body (1) is provided with a first locking protrusion (151) for limiting the downward sliding of the locking knob (3); the latch plate (2) has an ejection state and a reset state; when the latch plate (2) is in the ejection state, the locking knob (3) abuts against the top surface of the first locking protrusion (151). 2.The splicable LED display screen backboard of claim 1, wherein, The back plate body (1) has a sliding groove (12) for the sliding arrangement of the latch plate (2), and first and second clamping grooves (17, 18) are sequentially arranged on the two side walls of the sliding groove (12) from bottom to top; the latch plate (2) has a resilient clamping block (24) for clamping cooperation with the first clamping groove (17) / the second clamping groove (18); when the latch plate (2) is in the reset state, the resilient clamping block (24) is clamped with the first clamping groove (17); when the latch plate (2) is in the ejection state, the resilient clamping block (24) is clamped with the second clamping groove (18). 3.The splicable LED display screen backboard of claim 2, wherein, The first clamping groove (17) has a guide slope for guiding the resilient clamping block (24) to the second clamping groove (18). 4.The splicable LED display screen backboard of claim 1, wherein, The latch plate (2) and the back plate body (1) are connected by a buckle structure; the buckle structure includes a limiting buckle (16) arranged on the back plate body (1) and a limiting groove (212) opened on the latch plate (2) and used for clamping cooperation with the limiting buckle (16). 5.The splicable LED display screen backboard of claim 1, wherein, The latch plate (2) has a latch sleeve (23) for mounting the locking knob (3), the locking knob (3) has a rotating sleeve (32) for rotating cooperation with the latch sleeve (23), and the inner diameter of the rotating sleeve (32) is matched with the outer diameter of the latch sleeve (23). 6.The splicable LED display screen backboard of claim 5, wherein, The inner side wall of the rotating sleeve (32) is uniformly and circumferentially spaced apart to form four positioning grooves (321), and the outer side wall of the latch sleeve (23) is circumferentially spaced apart to form a positioning protrusion (231) corresponding to the four positioning grooves (321). 7.The splicable LED display screen backboard of claim 5, wherein, The back plate body (1) has a support portion (15) extending to the locking groove (14) and a first support groove (152) arranged on the top surface of the support portion (15) for abutting against the rotating sleeve (32); the back plate body (1) is provided with a second support groove (141) on the top surface of the locking groove (14) for abutting against the rotating sleeve (32). 8.The splicable LED display screen backboard of claim 1, wherein, The back plate body (1) is provided with a second locking protrusion (19) above the locking groove (14) for limiting the upward sliding of the locking knob (3), and the locking knob (3) is provided with a locking arc groove (311) on the side facing the latch plate (2) along the axis direction for the first locking protrusion (151) / the second locking protrusion (19) to borrow.

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