CN115050273A - LED display panel group - Google Patents

Abstract

An LED display panel group belongs to the technical field of LED display screens. The LED display panel comprises at least two LED display panels which are arranged in parallel, two longitudinal reference parts which are arranged at the back parts of all the LED display panels, and a power supply control box which is arranged between the two longitudinal reference parts; the longitudinal reference piece is respectively provided with a locking groove and a tensioning groove along the length direction at two opposite sides, and the locking groove and the tensioning groove are both provided with structures with narrow openings and wide inner cavities; the LED display panel is provided with a lock matched with the lock groove, and the two ends of the power supply control box are provided with mounting assemblies matched with the tensioning grooves. The invention can effectively accord with the use requirements in the industry, has higher selection flexibility for the specification and is convenient for developing cooperation and popularization in the industry.

Description

LED display panel group

Technical Field

The invention relates to the technical field of LED display screens, in particular to an LED display panel group.

Background

The LED display screen is an active controllable electric light-emitting device which takes an LED as a basic luminous body, information such as characters, figures, images and the like can be displayed through a control processing unit of a system, the LED display screen adopts low-voltage scanning driving, has the advantages of power consumption saving, low cost, high brightness, large visual angle, long visual distance, water resistance, multiple specification varieties and the like, can meet the requirements of various application scenes, has very wide development prospect, is generally accepted as having the most growth potential, and is also the fastest-developing LED application market.

The current indoor outer large-scale LED display screen, like the chinese utility model patent of patent number ZL201420685738.1 discloses a LED display screen box and LED display screen, its LED display screen includes the LED display screen box and installs in the display module of LED display screen box. If chinese utility model patent No. ZL201921475480.1 discloses a display screen box, LED display screen and LED display screen assemble structure again, and its LED display screen includes LED module, power pack and display screen box.

As mentioned above, because the existing LED display screens are assembled by a plurality of display units, and the display units need to use the box as a carrier, in order to meet the requirement of the box for structural strength, the disadvantage of heavy weight is inevitable. Therefore, the existing LED display screen has the following defects: 1. the heavy weight makes the transportation, installation and maintenance inconvenient; 2. the minimum assembly unit is a box body, the size of the whole display screen can be adjusted only according to the number of the box bodies, and each box body comprises a plurality of modules, so that the size adjustment of the display screen is not flexible enough; the size of the box body is generally uniform in the industry and is difficult to change; 3. the cost is higher, and both the production cost, the transportation cost and the maintenance cost are increased due to the characteristic of the thickness; 4. the appearance is heavy and the aesthetic property is poor.

Therefore, in order to solve the above drawbacks, an LED display panel is conceived and the whole display screen is formed directly by assembling the LED display panel. Meanwhile, the use habit in the industry needs to be considered so as to develop cooperation and popularization in the industry, namely, an LED display panel group with the specification similar to that of a module unit can be formed on the premise of canceling the box body, and then the LED display panel group is assembled to form the display screen.

Disclosure of Invention

The invention aims to solve the problems in the prior art, and provides an LED display panel group which can effectively meet the use requirements in the industry, has higher specification selection flexibility and is convenient for developing cooperation and popularization in the industry.

The purpose of the invention is realized by the following technical scheme:

an LED display panel group comprises at least two LED display panels arranged in parallel, two longitudinal reference pieces arranged at the back of all the LED display panels, and a power supply control box arranged between the two longitudinal reference pieces;

the longitudinal reference piece is respectively provided with a locking groove and a tensioning groove along the length direction on two opposite sides, and the locking groove and the tensioning groove are both provided with structures with narrow openings and wide inner cavities;

the LED display panel is provided with a lock matched with the lock groove, and the two ends of the power supply control box are provided with mounting assemblies matched with the tensioning grooves.

Preferably, the lock is provided with locking blocks on the back side of one end of a telescopic locking groove of the lock cylinder, the distance between the back ends of the two locking blocks is larger than the width of the opening of the locking groove, and the front side surface of the LED display panel and/or the longitudinal reference part are/is provided with operation holes communicated with the lock cylinder.

Preferably, the lock cylinder is provided with a locking platform on the side surface, the locking platform is provided with a locking inclined surface facing one side of the locking block, and the panel body is provided with a pushing piece matched with the locking inclined surface.

Preferably, the pushing part is a pushing screw arranged on the outer side surface of the panel main body, and a fixing block for connecting and fixing the pushing screw is arranged on the inner side surface of the panel main body.

Preferably, the middle of the fixing block is provided with a through hole for the lock cylinder to pass through, the inner side wall of the through hole is provided with an in-place prompting groove, and the side surface of the locking table is provided with an in-place prompting bulge.

Preferably, the longitudinal reference member is provided with a positioning hole, and the LED display panel is provided with a positioning column.

Preferably, the mounting assembly comprises a fastening plate, a fastening nut and a fastening bolt, the fastening plate is abutted against the longitudinal reference member, the fastening nut is arranged in the tensioning groove, and the fastening bolt penetrates through a hole in the fastening plate and is in threaded connection with the fastening nut; the fastening block is provided with a limiting structure which is matched with the inner cavity of the tensioning groove or the opening of the tensioning groove.

Preferably, the fastening nut is provided with an elastic sheet, and the bottom of the tensioning groove is provided with a clamping groove matched with the elastic sheet, so that the fastening nut can be positioned at any position in the tensioning groove.

Preferably, the LED display panel comprises a panel body, a display module disposed on the panel body, and a plug panel disposed on the back of the panel body; the plug-in panel is electrically connected with the power supply control box.

Preferably, the plug panel is provided with a signal power supply collinear cable with a plug, and the power supply control box is provided with a signal power supply collinear plug interface.

The invention has the advantages that:

1. the use requirements in the industry can be effectively met, and the development of cooperation and popularization in the industry is facilitated;

2. compared with the fixed specification of the box body structure, the LED display panel group has higher flexibility in specification selectivity;

3. because a box body structure is cancelled, the overall production cost is greatly reduced, the weight is lighter, and the cost of manpower and material resources required during transportation, carrying, installation and maintenance is effectively reduced;

4. the surface flatness of the LED display panel group is effectively guaranteed by utilizing the reference property of the longitudinal reference component;

5. the gradual locking structure formed by the locking inclined plane of the lockset and the abutting screw ensures that the locking operation is smoother and the locking effect is more stable and reliable; in addition, an in-place prompting structure is designed, so that the stability of a locking position is guaranteed, and meanwhile, the assembly and maintenance personnel can conveniently master the locking state;

6. the LED display panel is light and thin in structure, has excellent heat dissipation and waterproof performance, and can be suitable for indoor and outdoor various environments;

7. by designing the limiting grooves and the plastic strips, holes on the LED display panel are reduced, and therefore the production and processing efficiency is improved;

8. the mounted position of power control box can be adjusted according to actual conditions to satisfy the adaptation to the display screen specification, or prevent to take place to interfere with the external world and wait the requirement.

Drawings

FIG. 1 is a rear view of an LED display panel assembly according to the present invention;

FIG. 2 is a schematic view of an LED display panel according to the present invention;

FIG. 3 is a side view of an LED display panel of the present invention;

FIG. 4 is a side view of the aluminum profile plate body of the present invention;

FIG. 5 is a schematic view of the closure of the present invention;

FIG. 6 is a schematic structural diagram of an interface between a signal and a power of an LED display panel according to the present invention;

FIG. 7 is a schematic view of the structure of the waterproof ring of the present invention;

FIG. 8 is a schematic view of a longitudinal reference member according to the present invention;

FIG. 9 is a schematic view of the lock of the present invention;

FIG. 10 is a schematic structural view of the lock of the present invention at the opening at the side end of the aluminum profile plate;

FIG. 11 is a schematic view of the structure of the power control box of the present invention;

fig. 12 is a schematic view of the construction of the mounting member of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1, an LED display panel set includes a plurality of LED display panels arranged longitudinally and in parallel in sequence, longitudinal reference members disposed on the back of all the LED display panels and close to both sides, and a power control box disposed between the two longitudinal reference members. The structure of the LED display panel will be described first.

As shown in fig. 2 and 3, the LED display panel 1 is mainly composed of a panel main body 11, a display module 12, and a patch panel 13.

The panel body 11 includes an integrally formed aluminum plate 111, and a sealing member 112 inserted into the aluminum plate 111 and penetrating through the two openings.

As shown in fig. 4, the aluminum plate 111 further includes a mounting plate 1111 and a heat insulation plate 1112 arranged at intervals, two end plates 1113 connecting the mounting plate 1111 and the end of the heat insulation plate 1112, and three support ribs 1114 connecting the mounting plate 1111 and the interior of the heat insulation plate 1112. Further, the both ends and the middle part on mounting panel 1111 surface are provided with a spacing groove 1115 respectively, be used for setting up mounting such as plastic strip in the spacing groove 1115 for the cooperation screw is fixed in display module 12 on mounting panel 1111, in order to avoid additionally punching on the mounting panel, and because the mounting panel is thinner, will come direct fixation screw through punching, stability is not good. The limiting groove 1115 has a structure with a narrow opening and a wide inner portion, so as to ensure the position stability of the plastic strip inside the limiting groove. Two sides of the surface of the mounting plate 1111 are further respectively provided with an avoidance groove 1117 for avoiding elements such as a capacitor in the display module 12, so as to reduce the thickness of the whole LED display panel as much as possible.

The heat insulation plate 1112 and the mounting plate 1111 form a heat insulation and flow guide cavity 1118, on one hand, the mounting plate 1111 absorbs heat generated by the display assembly 12 and discharges the heat into the heat insulation and flow guide cavity 1118, and efficient heat dissipation is performed through convection action formed among a plurality of heat dissipation holes arranged on the opposite side surfaces of the panel body; on the other hand, when the display screen is used outdoors, due to the direct radiation of sunlight, the temperature of the heat insulation plate 1112 is too high, and the heat insulation diversion cavity 1118 effectively prevents the heat on the heat insulation plate 1112 from directly acting on the mounting plate 1111 and the display component 12, that is, the heat insulation diversion cavity 1118 is also utilized for efficient heat dissipation.

Three brace bars 1114 locate two grooves 1117 of dodging respectively, and a spacing groove 1115 department at middle part, on the one hand directly utilize the structural strength who dodges groove 1117 and spacing groove 1115, on the other hand has shortened the length of brace bar 1114 on mounting panel 1111 and heat insulating board 1112 connected direction to improve the structural strength of brace bar self, thereby improved the support strength between mounting panel 1111 and heat insulating board 1112, ensure the stability of distance between the two, prevent to warp. In addition, the surface of the heat insulation board 1112 is also provided with four extension ribs 1119 which are respectively extension sections of the two end plates 1113 and extension sections of the support ribs 1114 at the two avoiding grooves 1117, so that the overall structural strength is mainly improved, and meanwhile, a certain position marking function is provided for installation personnel.

As shown in fig. 5, the sealing member 112 may be a plastic member, which mainly serves as a sealing member without supporting. The aluminum profile plate comprises a cover 1121 and a plug-in connector 1122 matched with the end opening shape of the aluminum profile plate body 111, and the aluminum profile plate body 111 is divided into four chambers due to the existence of the three support ribs 1114, so that the plug-in connectors 1122 have four corresponding chambers, and meanwhile, a flow guide heat dissipation hole 1123 penetrating through the outside of the cover 1121 is formed in each plug-in connector 1122. Because the sealing piece needs to be produced independently and is formed by injection molding, the flow guide heat dissipation holes 1123 can be directly and integrally formed on the sealing piece 112, so that later-stage reprocessing is avoided, heat dissipation holes are also avoided being processed on the aluminum profile plate body 111, and the production efficiency is improved. During actual use, if the LED display panel is horizontally installed, that is, the two sealing members 112 are located at the left and right ends of the same height, that is, the corresponding multiple sets of flow guiding and heat dissipating holes 1123 are located at the left and right ends of the same height, at this time, convection is formed between the heat dissipating holes at the left and right ends under the action of external air flow, and the internal air flow penetrates through the whole heat insulation and flow guiding cavity 1118 to effectively dissipate heat. If the LED display panel is vertically installed, that is, two sealing members 112 are located at the upper and lower ends of the same vertical direction, that is, the plurality of sets of opposite guiding heat dissipation holes 1123 are located at the upper and lower ends of the same vertical direction, the principle of hot air rising can be effectively utilized, and more efficient air convection is formed between the upper and lower heat dissipation holes, so as to realize efficient heat dissipation, and the LED display panel is particularly suitable for the open air with hot weather. In addition, in order to improve the mounting stability of the sealing member 112, a fixing hole is provided in the plug 1122 so that the sealing member 112 and the aluminum plate 111 are stably connected by a screw.

The display assembly 12 comprises a PCB, IC control chips and LED lamps, wherein the IC control chips are respectively arranged on two sides of the back of the PCB, and are main heat-generating parts of the display assembly, so that the IC control chips are directly attached to the surface of the mounting plate 1111 to rapidly conduct heat generated by the IC control chips to the mounting plate 1111 by utilizing good heat conductivity of aluminum, and then the heat is dissipated by the heat insulation and diversion cavity 1118 and the heat dissipation holes 1123. As shown in fig. 6, the display module 12 further has a signal and power interface 124, the signal and power interface 124 is disposed inside the panel body 11 through an opening on the mounting plate 1111, and a waterproof ring 125 for connecting the mounting plate 1111 and the heat insulation plate 1112 is disposed at a side of the opening to separate a waterproof cavity in the heat insulation and flow guiding cavity 1118, so as to satisfy the waterproof requirement of the signal and power interface 124. Of course, the heat shield 1112 also has openings to allow for wiring to be routed. Specifically, as shown in fig. 7, one end of the waterproof ring 125 is provided with a flange 1251 for being snapped into an opening of the mounting plate 1111 to ensure the waterproof property of the end, and the other end of the waterproof ring is provided with a snap groove 1252 so as to use the elasticity of the waterproof ring to snap the edge of the opening of the heat insulation plate 1112 into the snap groove 1252, thereby realizing the mounting and fixing of the waterproof ring. In addition, the above-mentioned clamping structure of the waterproof ring 125 and the heat insulation board 1112 also makes one end of the waterproof ring 125 extend to the outside of the heat insulation board 1112 to tightly contact the inner side surface of the plug panel 13, so that the water seeping from between the plug panel 13 and the heat insulation board 1112 cannot enter the waterproof ring 125 and flows downward along the outer side surface of the waterproof ring 125, thereby further ensuring the waterproof performance.

The plug panel 13 is disposed outside the opening of the heat insulation board 1112 through a screw, a signal and power plug is disposed in the plug panel 13, when the plug panel is mounted on the heat insulation board 1112, the signal and power plug is just inserted into the signal and power interface 124 of the display module 12, meanwhile, a signal and power collinear cable 132 is led out from the plug panel 13 at the other end of the signal and power plug, and a signal and power collinear plug 1321 is disposed at the extending end of the signal and power collinear cable 132, so as to be directly connected to the signal and power collinear plug port on the power control box 4. Meanwhile, a sealing ring is arranged at the hole on the plug panel 13 for the extension of the signal power supply collinear cable 132, so as to further ensure the waterproofness. And, be equipped with the seal cover on the plug of signal power collinear cable 132, the seal cover is connected with the plug rotation to be equipped with the internal thread, and be equipped with the external screw thread on signal power collinear interface on power control box 4, in order to guarantee the compactness and the waterproof nature that plug and interface are connected through threaded connection. In addition, the inserting panel is also provided with a handle 133 so as to facilitate the dismounting operation of the assembly and maintenance personnel.

In addition, four side ends of the LED display panel 1 are respectively provided with a slope structure 101 with a wide front and a narrow back, and one end of the slope structure 101 close to the front side is provided with a small segment of splicing plane 102; namely, the two end plates 1113 of the aluminum profile plate 111 and the outer ends of the sealing member 112 have the slope structure 101 and the splicing plane 102. Through this design, the area of contact between the adjacent LED display panel is reduced greatly to greatly reduced the concatenation face roughness between the adjacent LED display panel to the influence of whole display screen surface roughness, also reduced the production requirement to LED display panel, reduced the product defective rate. And the standard parts with higher strength but less required quantity ensure the flatness of the surface of the display screen in the assembling process of the LED display panel. In addition, the design also increases the gap part between the adjacent LED display panels, which is more beneficial to heat dissipation, especially between the LED display panels which are transversely spliced, because the diversion heat dissipation holes 1123 are arranged at the transverse splicing end, the heat dissipation gap is indispensable.

The above is the main structure of the LED display panel 1, and in order to cooperate with the longitudinal reference component 21 to assemble and form the LED display panel group, the back of each LED display panel is provided with a lock and a positioning column near both sides, and the power control box also needs to cooperate with the longitudinal reference component to realize the installation and fixation. The longitudinal reference part 21 is also an integrally formed section bar, and meanwhile, the structural strength and the flatness of the longitudinal reference part 21 are high, and the plurality of LED display panels 1 are sequentially attached to the plane of the longitudinal reference part 21, so that the flatness of the surface of the longitudinally assembled LED display panel is ensured.

As shown in fig. 8, the longitudinal reference member 21 specifically includes a splicing portion 211 and a connecting portion 212, the splicing portion 211 is mainly a flat plate horizontally attached to the back of the LED display panel 1, and a portion of the splicing portion extends out of the LED display panel, because the side end of the LED display panel 1 has the inclined plane structure 101, only a small section of the splicing plane 102 on the front side is mutually abutted between the horizontally adjacent LED display panels 1, and the splicing portion 211 plays a role of abutting on the back side between the horizontally adjacent LED display panels, thereby ensuring that all the front and back abutting between the horizontally assembled LED display panels, i.e., ensuring the flatness after assembly. Moreover, in order to make the abutting relationship between the splicing portions 211 of the two longitudinal reference members 21 more stable, the end portion of the splicing portion 211 is provided with a section of abutting strip 2111 which is bent inwards and vertically, so as to increase the abutting area, meanwhile, the inclined plane structure 101 at the side end of the LED display panel 1 also provides a space for the abutting strip 2111, so as to avoid the abutting strip 2111 from bending outwards, thereby also ensuring the smoothness of the splicing portion 211 back to one side of the LED display panel, so as to be convenient for installation and fixation with the square steel 5.

The connecting portion 212 mainly includes a locking groove 2121 and a tightening groove 2122, which are oppositely arranged and vertically run through, and share a groove bottom plate 2123, and both have a limiting structure with a narrow opening and a wide inner cavity. The locking groove 2121 faces the LED display panel 1 and is used for matching with the lock and the positioning column 23 to realize the installation and connection between the LED display panel and the longitudinal reference member 21. Specifically, both ends all are equipped with a reference column 23 and two tool to lock about every LED display panel back, and reference column 23 is located the middle part, and reference column 23 both sides are located to two tool to locks branch. Correspondingly, the groove bottom plate 2123 is provided with a positioning hole matched with the positioning column 23, and the distance between every two adjacent positioning holes is equal to the longitudinal width of the LED display panel 1, so that the installation accuracy is ensured, and the installation efficiency is improved.

As shown in fig. 9 and 10, the lock includes a lock cylinder 221, a lock cylinder sleeve 222, a fixing block 223, and a pushing screw 224, wherein holes are formed in both the mounting plate 1111 and the heat insulation plate 1112, and the lock cylinder 221 is inserted from the hole in the heat insulation plate 1112 until the end portion is just inserted into the hole in the mounting plate 1111. The lock block 2211 is arranged on the back side of one end of the lock cylinder 221, and the distance between the back ends of the two lock blocks 2211 is greater than the width of the opening of the lock slot 2121, that is, when the lock cylinder 221 rotates to the state that the two lock blocks 2211 are positioned in the width direction of the lock slot 2121, the two lock blocks 2211 are limited in the lock slot 2121; when the two locking blocks 2211 are rotated to be in the length direction of the locking slot 2121, the locking blocks 2211 and the lock cylinder 221 can be withdrawn from the locking slot.

Be equipped with annular locking platform 2212 on the middle part side of lock core 221, be equipped with on the locking platform 2212 towards one side of locking piece 2211 and be equipped with locking inclined plane 2213, locking inclined plane 2213 has the same two, the low department on a locking inclined plane links up the eminence on another locking inclined plane to two links up the department and all are equipped with spacing platform 2214. Correspondingly, the two pushing screws 224 are fastened on the outer side of the heat insulation plate 1112 through the fixing blocks 223 on the inner side of the heat insulation plate 1112, the two pushing screws 224 are respectively located on the opposite sides of the lock cylinder 221, and simultaneously, screw heads of the two pushing screws 224 need to have edges partially extending out of the opening on the heat insulation plate 1112 so as to be matched with the locking inclined plane 2213. Of course, the fixing block 223 also has a through hole for the lock cylinder 221 to pass through; and one end of the fixing block 223 is just clamped between the outer bottom surface of the avoiding groove 1117 and the inner side surface of the heat insulation plate 1112, so that the auxiliary supporting function for the fixing block is realized before the pushing screw is screwed tightly. When the lock cylinder rotates, due to the pushing action of the locking inclined plane 2213 and the pushing screw 224, the lock cylinder 221 gradually moves towards the front side of the LED display panel, so that the two locking blocks 2211 gradually press the opening part of the locking groove 2121, and the locking connection between the LED display panel 1 and the longitudinal reference member 21 is realized. In addition, the side surfaces of the two limiting tables 2214 are respectively provided with an in-place prompting protrusion 2215, and the inner side wall of the through hole of the fixing block 223 is provided with an in-place prompting groove 2232, so that on one hand, the locking position of the lock cylinder is positioned, and the lock cylinder is prevented from loosening; on the other hand, under the condition that the inside of the lockset cannot be seen, an operator can master the lock cylinder rotation in-place condition by sensing the vibration or sound when the in-place prompt protrusion 2215 is clamped into the in-place prompt groove 2232.

The part of the key cylinder 221 inside the LED display panel 1 is sleeved with a key cylinder sleeve 222, that is, the key cylinder sleeve 222 is located between one end of the locking table 2212 back to the locking inclined plane 2213 and the inner side surface of the mounting plate 1111, so as to limit the distance that the key cylinder 221 moves towards the front side of the LED display panel 1. Moreover, two opposite side surfaces of the lock cylinder sleeve 222 are planes, and one of the planes is just attached to the outer wall of the avoidance groove 1117 after installation, so that the rotation of the lock cylinder sleeve 222 is limited, and the position stability of the lock cylinder sleeve is ensured. Finally, the front and rear ends of the lock cylinder 221 are provided with hexagonal socket holes for front and rear maintenance, and correspondingly, holes for the insertion of a hexagon wrench need to be opened on the PCB 121 and the groove bottom plate 2123.

Because the back of the LED display panel is provided with the plug panel 13, in order to avoid the plug panel 13, the plug panel 13 is more conveniently electrically connected with the power supply control box 4, and the power supply control box 4 is arranged at the adjacent position of two LED display panels.

Specifically, as shown in fig. 11 and 12, the power control box 4 is also mounted and fixed by the longitudinal reference member 21, that is, two ends of the power control box 4 are respectively mounted and connected with the longitudinal reference members 21 at two ends of the LED display panel 1, so that the power control box 4 does not need to be directly attached to the LED display panel 1, and a heat dissipation gap is formed between the two to prevent the LED display panel 1 from being affected by heat generated by the power control box 4. Wherein, 4 both ends of power control box all are equipped with integrated into one piece's installed part, and the installed part includes connecting plate 41 through the fix with screw at 4 side ends of power control box, divide two mounting plates 42 of locating connecting plate 41 both sides, locate the handheld board 43 of connecting plate 41 upper end, and mounting plate 42 is through cutting out fore-and-aft channel on connecting plate 41, then carries out 90 and buckles and form, and handheld board 43 then directly carries out 90 by connecting plate 41 upper end part and buckles and form. The fastening plate 42 is provided with a hole, a fastening nut 44 is arranged in the tightening groove 2122 of the longitudinal reference part 21, and the fastening bolt 45 penetrates through the hole in the fastening plate 42 and is in threaded connection and fastening with the fastening nut 44, so that the power control box 4 is installed and fixed.

Moreover, since the plug panel 13 is disposed on the back of the LED display panel, if the power control box 4 slides along the back of the LED display panel to the installation position, it will interfere with the plug panel 13, so that it can only be directly attached at the correct position, that is, the fastening nut 44 cannot be connected with the fastening bolt 45 in advance, and the fastening nut 44 needs to be moved in place in the tightening slot 2122 alone, and then connected with the fastening bolt 45 penetrating through the fastening plate 42. For this purpose, it is necessary to ensure the positional stability of the fastening nut 44 after it is moved in place in the tightening slot 2122, so that the elastic piece 441 is provided at the side thereof, the elastic piece 441 is bent toward the bottom of the tightening slot, and a catching slot 442 is further provided on the slot bottom plate 2123 for catching the end of the elastic piece 441 so that the elastic piece 441 is always kept in a tightened state to always press the fastening nut 44 against the notch of the tightening slot 2122 to prevent it from sliding freely along the tightening slot. Of course, the position of the fastening nut 44 can be manually adjusted according to actual conditions to adjust the installation position of the power control box 4 on the longitudinal reference member 21, so as to ensure the flexibility and applicability of installation. In order to prevent the fastening bolt 45 from rotating, the fastening nut 44 is provided with a boss 443 to be engaged with the notch of the tightening groove 2122, thereby limiting the fastening nut 44, and the elastic sheet structure ensures that the boss 443 of the fastening nut 44 is always engaged with the notch of the tightening groove. In addition, the hand-held plate 43 is mainly used for providing a force application position for an assembly and maintenance worker when the power supply control box is moved.

As described above in the description of the LED display panel structure, the power control box 4 is provided with a signal power collinear jack for connecting a cable of the jack panel 13 on the LED display panel 1. Generally, the power control box 4 can be disposed in the middle of a group of LED display panels, and signal power collinear sockets are disposed on the upper and lower sides, so that cables of the LED display panels on the upper and lower sides are connected to the power control box.

In summary, the installation principle of the display screen is as follows:

first, regarding the single LED display panel itself, the display module 12 is mainly fixed on the panel body 11 by screws, which is not described in detail. When the lock is installed, because the installation position of the lock is close to the side end of the panel, before the sealing member 112 is installed, the fixing block 223 is placed into the opening at the side end of the aluminum profile plate 111, and one end of the fixing block 223 is clamped between the outer bottom surface of the avoiding groove 1117 and the inner side surface of the heat insulation plate 1112, and the screw hole on the fixing block 223 is aligned to the screw hole on the heat insulation plate 1112 through adjustment. Then, the lock cylinder 221 sleeved with the lock cylinder sleeve 222 is placed into the opening on the heat insulation plate 1112 and penetrates through the through hole on the fixing block 223 until the end of the lock cylinder 221 is inserted into the hole on the mounting plate 1111. Then, two pushing screws 224 are inserted through the screw holes on the heat insulation plate 1112 to be tightly connected with the fixing blocks 223. At this time, one end of the key cylinder 221 is limited by the key cylinder sleeve 222, and the other end is limited by the two pushing screws 224, that is, the key cylinder 221 has been stably assembled to the LED display panel. The four locks are sequentially installed, and the positioning column 23 is directly connected with a threaded hole formed in the panel main body through threads arranged at the end part of the positioning column. Finally, the sealing pieces 112 are inserted into two ends of the aluminum profile plate body 111 and fixed by screws, and the insertion panel 13 is mounted to the opening at the back of the panel body through screws, so that the assembly of the single LED display panel is completed. Of course, the assembly process is certainly completed before shipping, and is not reassembled on site.

Secondly, a plurality of LED display panels are longitudinally assembled. The front surfaces of the LED display panels are downward, the LED display panels are sequentially laid on a horizontal plane in an aligned mode, and it is ensured that the locking block 2211 on the lock cylinder 221 of each LED display panel faces to the longitudinal splicing direction. Then, the positioning holes on the longitudinal reference member 21 are aligned with the positioning posts 23 on the back of the LED display panel to tightly attach the longitudinal reference member 21 to the back of the LED display panel, and then a hexagon socket wrench is used to insert the hexagon socket hole at the end of the key cylinder 221 through the holes on the bottom plate 2123 in the groove of the longitudinal reference member, so as to rotate the key cylinder, so that the lock 2211 block of the key cylinder presses the longitudinal reference member 21 on the LED display panel. And sequentially completing the locking work of all the locksets, and installing longitudinal reference parts 21 at the two ends of the LED display panel. Finally, the power control box 4 is mounted to the back of one LED display panel group, and the cable on each patch panel 13 is plugged into the power control box. So far, the assembly of one LED display panel is completed. Generally, the assembling process also needs to be completed before leaving the factory so as to avoid the influence of the environment of the display screen installation site, reduce the installation procedures of the installation site as much as possible and improve the installation efficiency of the site.

Of course, the size of the LED display panel group can be adjusted only by changing the number of the LED display panels and matching with the longitudinal reference component with the corresponding length, and the use is flexible.

The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above embodiment, and any changes or substitutions that can be easily made by those skilled in the art within the technical scope of the present invention should be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (10)

1. The LED display panel group is characterized by comprising at least two LED display panels arranged in parallel, two longitudinal reference parts arranged on the backs of all the LED display panels, and a power supply control box arranged between the two longitudinal reference parts;

the longitudinal reference piece is respectively provided with a locking groove and a tensioning groove along the length direction on two opposite sides, and the locking groove and the tensioning groove are both provided with structures with narrow openings and wide inner cavities;

the LED display panel is provided with a lock matched with the lock groove, and the two ends of the power supply control box are provided with mounting assemblies matched with the tensioning grooves.

2. The LED display panel group according to claim 1, wherein the lock blocks are arranged on the back side of one end of a telescopic lock groove of the lock cylinder of the lock, the distance between the back ends of the two lock blocks is larger than the width of an opening of the lock groove, and the front side surface and/or the longitudinal reference member of the LED display panel are/is provided with an operation hole communicated with the lock cylinder.

3. The LED display panel set according to claim 2, wherein a locking table is disposed on a side surface of the lock cylinder, a locking inclined surface facing one side of the locking block is disposed on the locking table, and a pushing member is disposed on the panel body and engaged with the locking inclined surface.

4. The set of LED display panels according to claim 3, wherein the pushing member is a pushing screw disposed on an outer side of the panel body, and a fixing block is disposed on an inner side of the panel body for connecting and fixing the pushing screw.

5. The LED display panel set according to claim 4, wherein a through hole for the lock cylinder to pass through is formed in the middle of the fixing block, an in-place prompting groove is formed in the inner side wall of the through hole, and an in-place prompting protrusion is formed on the side surface of the locking table.

6. The set of LED display panels as claimed in claim 1, wherein the longitudinal reference member has positioning holes and the LED display panels have positioning posts.

7. The set of LED display panels according to claim 1, wherein the mounting assembly comprises a fastening plate, a fastening nut, and a fastening bolt, the fastening plate abuts against the longitudinal reference member, the fastening nut is disposed in the tightening slot, and the fastening bolt passes through a hole on the fastening plate and is screwed with the fastening nut; the fastening block is provided with a limiting structure which is matched with the inner cavity of the tensioning groove or the opening of the tensioning groove.

8. The set of LED display panels according to claim 7, wherein the fastening nut has a spring piece, and the bottom of the tightening slot has a locking slot for engaging the spring piece, so that the fastening nut can be positioned at any position in the tightening slot.

9. The set of LED display panels according to claim 1, wherein the LED display panel comprises a panel body, a display module disposed on the panel body, and a plug panel disposed on a back of the panel body; the plug-in panel is electrically connected with the power supply control box.

10. The set of LED display panels as claimed in claim 9, wherein the plugging panel has a signal power collinear cable with a plug, and the power control box has a signal power collinear socket.

Images