CN108648637B - Front maintenance structure of LED display screen - Google Patents

Front maintenance structure of LED display screen Download PDF

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Publication number
CN108648637B
CN108648637B CN201810457352.8A CN201810457352A CN108648637B CN 108648637 B CN108648637 B CN 108648637B CN 201810457352 A CN201810457352 A CN 201810457352A CN 108648637 B CN108648637 B CN 108648637B
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China
Prior art keywords
plate
led display
display screen
elastic component
lock pin
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Expired - Fee Related
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CN201810457352.8A
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CN108648637A (en
Inventor
魏东
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Vtron Group Co Ltd
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Vtron Group Co Ltd
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Publication of CN108648637A publication Critical patent/CN108648637A/en
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Publication of CN108648637B publication Critical patent/CN108648637B/en
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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/33—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes

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  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

The invention relates to the technical field of LED display screens, in particular to a front maintenance structure of an LED display screen. The invention discloses a front maintenance structure of an LED display screen, which comprises: the LED display screen comprises a lamp panel, a unit box body, a unit back frame, a lock pin, a magnetic suction plate, a movable plate, a base, a first elastic part and a second elastic part, wherein the lock pin can move between a first through hole and the movable plate; the regulation of roughness also can go on before passing through the screen completely, need not dismantle lamp plate and unit box, when having solved the LED display screen and maintaining, need pull down the lamp plate, tries on the dress repeatedly and adjusts LED display screen concatenation gap, has the technical problem that requires height to the processing of lamp plate.

Description

Front maintenance structure of LED display screen
Technical Field
The invention relates to the technical field of LED display screens, in particular to a front maintenance structure of an LED display screen.
Background
The existing front maintenance structure of the LED display screen mainly comprises the following steps: the lamp house is fixed, and the lamp plate (or called as module) leans on magnetism to inhale to fix on the lamp house, can only take out the lamp plate in the past with the help of the instrument during adjustment lamp plate, or the roughness of lamp plate is adjusted to adjusting screw in the lamp house, and this kind of method requires very high to the overall dimension precision of lamp house, and in addition, need pull down the lamp plate when adjusting the lamp plate, tries on clothes repeatedly, and the lamp pearl at lamp plate edge is very easily damaged in the dismouting process.
Disclosure of Invention
The invention provides a front maintenance structure of an LED display screen, which solves the technical problems that the lamp panel needs to be detached and repeatedly trial-assembled when the flatness of the LED lamp panel is adjusted at present, and the requirement on the dimensional precision of the lamp panel is high.
The invention discloses a front maintenance structure of an LED display screen, which comprises:
the lamp panel, the unit box body, the unit back frame, the lock pin, the magnetic attraction plate, the movable plate, the base, the first elastic component and the second elastic component;
the unit back frame is provided with a first through hole;
the movable plate is connected with the unit back frame;
the base is positioned between the movable plate and the first through hole;
the lamp panel is arranged on the front face of the unit box body, a guide rod is vertically arranged on the back face of the unit box body, the guide rod is inserted into the first through hole, and the guide rod can move along the first through hole;
the movable plate is provided with an inclined plate and the magnetic suction plate and is connected with the unit back frame through the first elastic component;
the lock pin is horizontally arranged between the movable plate and the first through hole and is elastically connected with the side surface of the base through the second elastic component;
the first end of the lock pin is always kept against the inclined plate under the action of the restoring force of the second elastic component;
when the magnetic attraction plate is attracted by magnetic force vertical to the unit box body, the movable plate moves towards the direction close to the unit box body, the lock pin and the inclined plate slide relatively, and the second end of the lock pin leaves the guide rod under the action of the second elastic component;
when the magnetic force is removed, the movable plate moves towards the direction far away from the unit box body under the action of the restoring force of the first elastic component, the inclined plate and the lock pin slide relatively, and the lock pin is pushed to move towards the guide rod until the second end of the lock pin abuts against the guide rod.
Preferably, the base is provided with a second through hole, and the lock pin is inserted into the second through hole.
Preferably, the second elastic member is located between the base and the inclined surface;
the first end of the second elastic component is fixedly connected with one end of the base, and the second end of the second elastic component is fixedly connected with the lock pin;
the second resilient member is in a compressed state.
Preferably, the second elastic part is located between the base and the guide rod;
the first end of the second elastic component is fixedly connected with one end of the base, and the second end of the second elastic component is fixedly connected with the lock pin;
the second elastic member is in a stretched state.
Preferably, the fixing plate is vertically fixed on the unit back frame, and a first side wall and a second side wall are respectively arranged at the first end of the fixing plate and the second end of the fixing plate;
the movable plate and the fixed plate are arranged in a parallel staggered manner;
the movable plate is provided with a third side wall, and the third side wall is positioned between the first side wall and the second side wall;
the shaft pin sequentially penetrates through the first side wall, the third side wall and the second side wall;
the first elastic component is sleeved on the shaft pin, is positioned between the first side wall and the third side wall and is in a natural state;
the movable plate can move along the shaft pin relative to the fixed plate under the action of external force.
Preferably, the method further comprises the following steps: a push-pull assembly;
the adjacent unit back frames are connected through a push-pull assembly;
the push-pull assembly is used for adjusting the distance between the adjacent unit back frames.
Preferably, the method further comprises the following steps: a fixed support;
the first end of the fixed support is fixed on the unit back frame, and the second end of the fixed support is fixed on the fixed plate and used for reinforcing the fixed plate.
Preferably, the method further comprises the following steps: connecting a bracket;
the connecting support is used for fixing the unit back frame on an object to be fixed.
Preferably, the method further comprises the following steps: the locking clamping plate, the rotating shaft and the fixing pin are arranged on the rotating shaft;
the fixing pin penetrates through the unit back frame, and the first end of the fixing pin is fixedly connected with the back of the unit box body;
the rotating shaft penetrates through the unit back frame and is rotatably connected with the unit back frame;
the locking clamping plate is fixedly connected with one end of the rotating shaft and can rotate to a position where the second end of the fixing pin is clamped.
Preferably, the push-pull assembly is a left-right screw.
According to the technical scheme, the invention has the following advantages:
the unit back frame is provided with a first through hole, the movable plate is connected with the unit back frame, the base is positioned between the movable plate and the first through hole, and the lock pin is horizontally arranged between the movable plate and the first through hole and is elastically connected with the side surface of the base through a second elastic part, so the lock pin can move between the first through hole and the movable plate;
the front surface of the unit box body is provided with a lamp panel, the back surface of the unit box body is vertically provided with a guide rod, the guide rod is inserted in the first through hole, and the guide rod can move along the first through hole, so that the distance between the unit lamp panel and the unit back frame is adjustable; the movable plate is provided with an inclined plate and a magnetic attraction plate and is connected with the unit back frames through a first elastic part, so that the movable plate can move relative to the unit back frames, and the plurality of unit back frames are connected to form the LED display screen;
when the flatness of the LED display screen needs to be adjusted, the magnetic suction plate can be attracted by a magnetic suction tool in front of the lamp panel to drive the movable plate to move towards the direction close to the unit box body by overcoming the restoring force of the first elastic component, then the lock pin and the inclined plate slide relatively, and as the first end of the lock pin is always kept to be abutted against the inclined plate under the action of the restoring force of the second elastic component, the second end of the lock pin leaves the guide rod under the action of the second elastic component, at the moment, the guide rod is in an unlocking state, and a worker can control the guide rod to move along the first through hole to adjust the distance between the lamp panel and the unit back;
after the flatness is adjusted, the magnetic force is removed, the movable plate moves towards the direction far away from the unit box body under the action of the restoring force of the first elastic component, the inclined plate and the lock pin slide relatively, and the lock pin is pushed to move towards the guide rod until the second end of the lock pin abuts against the guide rod, so that the guide rod is locked to fix the unit box body;
therefore, before the lamp panel is installed, workers can adjust the position and the posture of the unit back frame from the front, the adjusting space is sufficient, the operation is convenient and fast, the positioning is accurate, the pre-positioning of the lamp panel can be easily realized, and the front installation of the lamp panel is completed; the adjustment of the flatness can be completely carried out before passing through the screen, the lamp panel and the unit box body do not need to be disassembled, so that the installation and the maintenance of an engineer are greatly facilitated, and the debugging workload is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a schematic view of a front maintenance structure of an LED display screen according to an embodiment of the present invention;
FIG. 2 is an installation diagram of a front maintenance structure of an LED display screen according to an embodiment of the present invention;
FIG. 3 is a diagram of a position relationship when the magnetic attraction plate of the front maintenance structure of the LED display screen provided by the embodiment of the invention moves towards the direction of the unit back frame;
FIG. 4 is a schematic diagram of the operation of the locking pin, the second elastic component and the inclined plane of the LED display screen front maintenance structure provided by the embodiment of the invention;
FIG. 5 is a schematic working diagram of the locking pin, the second elastic component, the magnetic attraction plate, the movable portion and the inclined plane of the front maintenance structure of the LED display screen according to the embodiment of the present invention;
FIG. 6 is an exploded view of a movable plate and a magnetic attraction plate of the front maintenance structure of the LED display screen according to the embodiment of the present invention;
fig. 7 is a schematic structural view of a movable plate, a fixed support and a unit back frame of the LED display front maintenance structure according to the embodiment of the present invention;
fig. 8 is a schematic structural view of a back surface of a unit back frame of the front maintenance structure of the LED display screen according to the embodiment of the present invention;
FIG. 9 is a schematic diagram of a first structure of a plurality of unit back frames of a front maintenance structure of an LED display screen according to an embodiment of the present invention;
FIG. 10 is an enlarged schematic view of detail A in FIG. 9;
FIG. 11 is an enlarged schematic view of detail B of FIG. 9;
fig. 12 is a second structural schematic view of a plurality of unit back frames of the LED display front maintenance structure provided in the embodiment of the present invention;
FIG. 13 is an enlarged schematic view of detail C of FIG. 12;
the drawings illustrate the following:
1. a lamp panel; 2. a unit box body; 3. a unit back frame; 4. a guide bar; 5. a first through hole; 6. a locking clamping plate; 7. a push-pull assembly; 8. connecting a bracket; 9. a lock pin; 10. a magnetic attraction plate; 11. a movable plate; 12. a first elastic member; 13. a second elastic member; 14. a base; 15. a sloping plate; 16. a fixing plate; 17. a first side wall; 18. a second side wall; 19. a third side wall; 20. a fixed support; 21. a pin.
Detailed Description
The embodiment of the invention provides a front maintenance structure of an LED display screen, which is used for solving the technical problem that the lamp panel needs to be detached and repeatedly trial-installed to adjust the splicing gap of the LED display screen when the LED display screen is maintained, and the requirement on the processing of the lamp panel is high.
In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the embodiments described below are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Fig. 1 is a schematic view of a front maintenance structure of an LED display screen according to an embodiment of the present invention.
Fig. 2 is a schematic view of an installation of a front maintenance structure of an LED display screen according to an embodiment of the present invention.
Fig. 3 is a diagram of a position relationship when the magnetic attraction plate of the front maintenance structure of the LED display screen moves toward the unit back frame according to the embodiment of the present invention.
Referring to fig. 4, a working diagram of the locking pin, the second elastic component and the inclined plane of the front maintenance structure of the LED display screen according to the embodiment of the present invention is shown.
Fig. 5 is a schematic working diagram of the locking pin, the second elastic component, the magnetic attraction plate, the movable portion and the inclined plane of the front maintenance structure of the LED display screen according to the embodiment of the present invention.
The invention provides an embodiment of a front maintenance structure of an LED display screen, which comprises the following steps:
the lamp panel 1, the unit box 2, the unit back frame 3, the lock pin 9, the magnetic attraction plate 10, the movable plate 11, the first elastic component 12 and the second elastic component 13.
The unit back frame 3 is provided with a first through hole 5, a base 14 and a movable plate 11 in sequence.
As shown in fig. 2, in the embodiment of the present invention, the first through hole 5, the base 14 and the movable plate 11 are sequentially disposed from top to bottom.
Besides, the first through hole 5, the base 14 and the movable plate 11 may also be sequentially arranged from bottom to top, or may also be sequentially arranged from left to right.
In the embodiment of the present invention, the first through holes 5 are disposed at four corners of the unit back frame 3, and the position where the first through holes 5 are disposed is not particularly limited.
The front of the unit box body 2 is provided with the lamp panel 1, which is not described herein.
The back of the unit box body 2 is vertically provided with a guide rod 4, the guide rod 4 is inserted in the first through hole 5, and the guide rod 4 can move along the first through hole 5.
The number of guide rods 4 is the same as the number of first through holes 5.
The movable plate 11 is provided with a sloping plate 15 and a magnetic attraction plate 10.
In the embodiment of the present invention, the first through hole 5, the base 14 and the movable plate 11 are sequentially disposed from top to bottom, the inclined plate 15 is disposed on the upper side surface and the lower side surface of the movable plate 11, and an extension line of one end of the inclined plate 15 close to the unit back frame 3 forms an included angle smaller than 90 degrees with the unit back frame 3.
The magnetic attraction plate 10 may be disposed between the movable plate 11 and the unit case 2, and fixedly connected with the movable portion.
The magnetic attraction plate 10 may also be disposed between the movable plate 11 and the unit back frame 3, and the position where the magnetic attraction plate 10 is disposed is not particularly limited.
The movable plate 11 is connected to the unit back frame 3 through a first elastic member 12.
The first elastic member 12 may be a spring.
The lock pin 9 is horizontally disposed between the movable plate 11 and the first through hole 5, and is elastically connected to a side surface of the base 14 by a second elastic member 13.
The second elastic member 13 may be a spring, and is not particularly limited herein.
The first end of the lock pin 9 is always kept against the inclined plate 15 under the action of the restoring force of the second elastic component 13, so that the unit box body 2 and the unit back frame 3 are fixed.
When the magnetic attraction plate 10 is attracted by the magnetic force of the vertical unit box 2, the movable plate 11 moves towards the direction approaching the unit box 2, the lock pin 9 slides relative to the inclined plate 15, and the second end of the lock pin 9 leaves the guide rod 4 under the action of the second elastic component 13.
Specifically, the number of the locking pins 9 is the same as that of the inclined plate 15, and when the movable plate 11 moves in a direction approaching the unit case 2, the movement of the inclined plate 15 pushes the second end of the locking pin 9 on the upper side of the movable plate 11 to move downward under the action of the second elastic member 13, and the locking pin 9 on the lower side of the movable plate 11 moves upward under the action of the second elastic member 13 to be away from the guide bar 4, so that the guide bar 4 can move freely in the first through hole 5.
The second elastic member 13 may be a spring.
When the magnetic force is removed, the movable plate 11 moves away from the unit case 2 under the action of the restoring force of the first elastic component 12, the inclined plate 15 slides relative to the lock pin 9, and pushes the lock pin 9 to move towards the guide rod 4 until the second end of the lock pin 9 abuts against the guide rod 4.
Specifically, when the movable plate 11 moves away from the unit case 2 by the restoring force of the first elastic member 12, the movement of the inclined plate 15 pushes the second end of the lock pin 9 on the upper side of the movable plate 11 to move upward and the second end of the lock pin 9 on the upper side of the movable plate 11 to move downward until the lock pin 9 abuts against the guide rod 4, so that the guide rod 4 is fixed in the first through hole 5.
The second end of the lock pin 9 is also provided with a rubber sleeve, when the second end of the lock pin 9 is abutted to the guide rod 4, the friction force between the second end of the lock pin 9 and the guide rod 4 is increased, and the locking stability of the guide rod 4 is increased.
It should be noted that, when the first through hole 5, the base 14 and the movable plate 11 are sequentially arranged from left to right in the horizontal direction, the lock pin 9 is also arranged between the movable plate 11 and the first through hole 5, and a first end of the lock pin 9 abuts against the inclined plate 15 through an elastic component, except that the movement mode and principle of the lock pin 9, the inclined plate 15 and the movable plate 11 are the same as those described above, and no further description is given here.
The foregoing is a detailed description of an embodiment of a front maintenance structure for an LED display screen according to an embodiment of the present invention, and another embodiment of the front maintenance structure for an LED display screen according to an embodiment of the present invention is described in detail below.
Fig. 6 is an exploded view of a movable plate and a magnetic attraction plate of a front maintenance structure of an LED display screen according to an embodiment of the present invention.
Fig. 7 is a schematic structural diagram of a movable plate, a fixed support and a unit back frame of a front maintenance structure of an LED display screen according to an embodiment of the present invention.
Fig. 8 is a schematic diagram of a back side structure of a unit back frame of a front maintenance structure of an LED display screen according to an embodiment of the present invention.
The base 14 is provided with a second through hole, and the lock pin 9 is inserted in the second through hole, that is, the lock pin 9 passes through the second through hole and is elastically connected with the base 14, and when the lock pin 9 moves, the second through hole can play a guiding role.
Further, when the second elastic component 13 is located between the base 14 and the inclined plane, a first end of the second elastic component 13 is fixedly connected with one end of the base 14, a second end of the second elastic component 13 is fixedly connected with the lock pin 9, and the second elastic component 13 is in a compressed state; when the second elastic component 13 is located between the base 14 and the guide rod 4, the first end of the second elastic component 13 is fixedly connected with one end of the base 14, the second end of the second elastic component 13 is fixedly connected with the lock pin 9, and the second elastic component 13 is in a stretching state.
In the embodiment of the present invention, the lock pin 9 is fixedly provided with a limit stop piece, and the second elastic component 13 is limited between the limit stop piece and the base 14.
As shown in fig. 4, in the embodiment of the present invention, two cotters are respectively located at two sides of the base 14, specifically, when the cotter and the limiting blocking piece are located at the same side, the limiting blocking piece is located between the cotter and the base 14, so that the lockpin 9 moves up and down within a fixed range, so as to prevent the lockpin 9 from moving excessively due to the restoring force of the second elastic component 13 to interfere with other components.
Further, the fixed plate 16 is vertically fixed on the unit back frame 3, and a first side wall 17 and a second side wall 18 are respectively disposed on a first end of the fixed plate 16 and a second end of the fixed plate 16, the movable plate 11 is disposed in parallel with the fixed plate 16, the movable plate 11 is disposed with a third side wall 19, and the third side wall 19 is disposed between the first side wall 17 and the second side wall 18.
The first, second and third sidewalls 17, 18 and 19 are provided with through holes, and the shaft pins 21 sequentially pass through the first, third and second sidewalls 17, 19 and 18 through the through holes, so that the fixed plate 16 is fixed to the movable plate 11.
As shown in fig. 6, in the embodiment of the present invention, the magnetic attraction plate 10 may also be provided with through holes.
The first elastic component 12 is sleeved on the shaft pin 21 and is positioned between the first side wall 17 and the third side wall 19, and is in a natural state.
The first end of the first elastic member 12 is fixedly connected to the shaft pin 21, and the second end of the first elastic member 12 contacts the first side wall 17.
The movable plate 11 is movable along the first axis pin 21 relative to the stationary plate 16 by an external force.
Specifically, when the magnetic attraction tool attracts the magnetic attraction plate 10 to move the movable plate 11 toward the unit case 2, the movable plate 11 moves along the first axis pin 21 relative to the fixed plate 16, such that the first elastic member 12 is compressed, and when the magnetic attraction tool is removed, the movable plate 11 moves along the first axis pin 21 to the original position under the restoring force of the first elastic member 12.
In the embodiment of the present invention, in order to save space and adapt to the narrow space between the unit back frame 3 and the unit box 2, a third through hole is formed on the unit back frame 3, a fixed support 20 is arranged on the edge of the third through hole, the fixed plate 16 and the movable plate 11 are both arranged in the third through hole, and the fixed plate 16 is connected with the fixed support 20.
As shown in fig. 7, the fixing plate 16 is connected to the fixing support 20 by screws, and in order to enhance the fixing effect, a buckle is provided on the fixing plate 16, and the fixing plate 16 is further clamped to the fixing support 20 by the buckle.
The number of the first shaft pins 21 is not particularly limited in the present invention, and for example, the number of the first shaft pins 21 may be two.
Please refer to fig. 9 to fig. 13.
Further, LED display screen front maintenance structure still includes: a push-pull assembly 7.
The adjacent unit back frames 3 are connected through a push-pull assembly 7, and the push-pull assembly 7 is used for adjusting the distance between the adjacent unit back frames 3.
According to the LED display screen splicing method, the distance between the unit back frame 3 and the unit back frame 3 is adjusted through the push-pull assembly 7, the splicing gap of the LED display screen is further adjusted, and since the position of the unit back frame 3 is pre-assembled and adjusted from the front by engineering personnel before the unit box body 2 is installed, after the unit box body 2 is installed on the unit back frame 3, the splicing gap of the whole LED display screen can be adjusted quickly only by finely adjusting the unit back frame 3 left, right, up and down, and the method is sufficient in adjusting space, convenient and rapid to operate and accurate in positioning.
In addition, the unit back frame 3 may carry some of the equipment within the unit, such as: power and integrated circuit board to alleviate the dead weight of unit box 2, make unit box 2 light adjustable more.
Further, LED display screen front maintenance structure still includes: a bracket 8 is attached.
The connecting bracket 8 is used for fixing the unit back frame 3 on an object to be fixed, for example, the connecting bracket 8 may be a wall or a frame.
Further, LED display screen front maintenance structure still includes: locking cardboard 6, pivot and fixed pin.
The fixed pin runs through unit back of the body frame 3, and fixed pin first end and 2 back fixed connection of unit box, and the pivot runs through unit back of the body frame 3 and with unit back of the body frame 3 rotatable coupling, locking cardboard 6 and pivot one end fixed connection, and rotatable to the position that blocks with the fixed pin second end.
It can be understood that because the pivot runs through unit back of the body frame 3, so the pivot both ends are located unit back of the body frame 3 both sides respectively, and the one end through stirring the pivot can drive the locking cardboard rotation of the pivot other end, when the locking cardboard 6 was rotatory to the position that the fixed pin blocked, the unit box 2 drops from unit back of the body frame 3 under the prevention maintenance or the unexpected circumstances.
In addition, as shown in fig. 8, in the embodiment of the present invention, the LED display screen front maintenance structure further includes: spring and spacing hole. Spacing hole sets up at the 3 backs of unit back of the body frame, spring one end is connected with locking cardboard 6, the other end and 3 back connections of unit back of the body frame, when making locking cardboard 6 rotatory round the pivot, the spring plays taut effect to locking cardboard 6, locking cardboard 6 is from "locking pivot" to the in-process of "unblock pivot", the spring is stretched, inherent shrink elasticity makes locking cardboard 6 revolute the rotation of axes until berthhing on spacing pore wall, can not kick-back.
Wherein, only need to use ordinary instrument can realize stirring of pivot, so control locking cardboard 6 realizes locking and unblock more convenient.
Further, the push-pull assembly 7 is a left-right rotating screw rod, and the number of the left-right rotating screw rods can be set to be multiple in order to achieve good fixing and adjusting effects.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims (10)

1. The utility model provides a LED display screen front maintenance structure which characterized in that includes: the lamp panel, the unit box body, the unit back frame, the lock pin, the magnetic attraction plate, the movable plate, the base, the first elastic component and the second elastic component;
the unit back frame is provided with a first through hole;
the movable plate is connected with the unit back frame;
the base is positioned between the movable plate and the first through hole;
the lamp panel is arranged on the front face of the unit box body, a guide rod is vertically arranged on the back face of the unit box body, the guide rod is inserted into the first through hole, and the guide rod can move along the first through hole;
the movable plate is provided with an inclined plate and the magnetic suction plate and is connected with the unit back frame through the first elastic component;
the lock pin is horizontally arranged between the movable plate and the first through hole and is elastically connected with the side surface of the base through the second elastic component;
the first end of the lock pin is always kept against the inclined plate under the action of the restoring force of the second elastic component;
when the magnetic attraction plate is attracted by magnetic force vertical to the unit box body, the movable plate moves towards the direction close to the unit box body, the lock pin and the inclined plate slide relatively, and the second end of the lock pin leaves the guide rod under the action of the second elastic component;
when the magnetic force is removed, the movable plate moves towards the direction far away from the unit box body under the action of the restoring force of the first elastic component, the inclined plate and the lock pin slide relatively, and the lock pin is pushed to move towards the guide rod until the second end of the lock pin abuts against the guide rod.
2. The LED display screen front maintenance structure of claim 1, wherein the base is provided with a second through hole, and the locking pin is inserted into the second through hole.
3. The LED display screen front maintenance structure of claim 2, wherein the second elastic member is located between the base and the sloping plate;
the first end of the second elastic component is fixedly connected with one end of the base, and the second end of the second elastic component is fixedly connected with the lock pin;
the second resilient member is in a compressed state.
4. The LED display screen front maintenance structure of claim 2, wherein the second elastic member is located between the base and the guide rod;
the first end of the second elastic component is fixedly connected with one end of the base, and the second end of the second elastic component is fixedly connected with the lock pin;
the second elastic member is in a stretched state.
5. The LED display screen front maintenance structure of claim 1, further comprising: a fixing plate and a shaft pin;
the fixing plate is vertically fixed on the unit back frame, and a first side wall and a second side wall are respectively arranged at the first end of the fixing plate and the second end of the fixing plate;
the movable plate and the fixed plate are arranged in a parallel staggered manner;
the movable plate is provided with a third side wall, and the third side wall is positioned between the first side wall and the second side wall;
the shaft pin sequentially penetrates through the first side wall, the third side wall and the second side wall;
the first elastic component is sleeved on the shaft pin, is positioned between the first side wall and the third side wall and is in a natural state;
the movable plate can move along the shaft pin relative to the fixed plate under the action of external force.
6. The LED display screen front maintenance structure of claim 1, further comprising: a push-pull assembly;
the adjacent unit back frames are connected through a push-pull assembly;
the push-pull assembly is used for adjusting the distance between the adjacent unit back frames.
7. The LED display screen front maintenance structure of claim 1, further comprising: a fixed support;
the first end of the fixed support is fixed on the unit back frame, and the second end of the fixed support is fixed on the fixed plate and used for reinforcing the fixed plate.
8. The LED display screen front maintenance structure of claim 1, further comprising: connecting a bracket;
the connecting support is used for fixing the unit back frame on an object to be fixed.
9. The LED display screen front maintenance structure of claim 1, further comprising: the locking clamping plate, the rotating shaft and the fixing pin are arranged on the rotating shaft;
the fixing pin penetrates through the unit back frame, and the first end of the fixing pin is fixedly connected with the back of the unit box body;
the locking clamping plate is fixedly connected with one end of the rotating shaft and can rotate to a position where the second end of the fixing pin is clamped.
10. The LED display screen front maintenance structure of claim 6, wherein the push-pull assembly is a left-right-hand screw.
CN201810457352.8A 2018-05-14 2018-05-14 Front maintenance structure of LED display screen Expired - Fee Related CN108648637B (en)

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