CN110972416B - Angle protection mechanism and LED display screen with same - Google Patents
Angle protection mechanism and LED display screen with same Download PDFInfo
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- CN110972416B CN110972416B CN201911319342.9A CN201911319342A CN110972416B CN 110972416 B CN110972416 B CN 110972416B CN 201911319342 A CN201911319342 A CN 201911319342A CN 110972416 B CN110972416 B CN 110972416B
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- corner protection
- connecting rod
- led display
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/0021—Side-by-side or stacked arrangements
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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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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/02—Details
- H05K5/0217—Mechanical details of casings
Abstract
The invention discloses an angle protection mechanism and an LED display screen with the angle protection mechanism. A corner protection mechanism comprises a base, a corner protection plate and a linkage assembly arranged between the corner protection plate and the base; the corner protection plate moves relative to the base through the linkage assembly; the linkage assembly comprises a first connecting rod hinged with the base and a second connecting rod hinged with the first connecting rod; the second connecting rod is hinged with a first supporting rod, and the first supporting rod is hinged with the corner protection plate; the first connecting rod is stopped against the angle protection plate so that the angle protection plate and the first connecting rod are driven. The corner protection mechanism is arranged at the corner of the LED display unit, so that the collision of disassembly, assembly and transportation is reduced, the damage is avoided, and the service life is prolonged. The mechanism is convenient to install and use on the LED display screen, does not need to be manually pressed to lock and unlock when the LED display screen box body is installed, and can realize idle time and working state switching by depending on the contact of the angle protection mechanism of the adjacent box body.
Description
Technical Field
The invention relates to the technical field of LED screens, in particular to an angle protection mechanism and an LED display screen with the angle protection mechanism.
Background
With the development of LED display technology, LED display technology is applied more and more widely in various occasions, such as at dance event evening, various releases, exhibitions, stadiums, theaters, auditoriums, etc. The stage in these places is mostly temporarily built and is disposable, and these display screens are LED lease screens basically. The LED leased screen causes the display screen to collide with because need often change the use place, frequently install, frequently dismantle and transport, especially LED lamp on four angles damages easily, not only influences the display effect, shortens the life of display screen moreover. Therefore, corner protection of the LED display screen is very important.
The Chinese utility model with application number of 201721422071.6 discloses an anti-collision protection device for an LED display screen, wherein a corner protector is provided with a folded edge, and the movable connection part with an LED box body is positioned at the inner side of the corner of the LED box body, so that the installation is inconvenient; in addition, in order to realize the lifting of the corner protector, an arc-shaped lifting surface occupying a large space is designed, and a rectangular groove needs to be designed on the box body, so that the LED display screen box body is greatly changed; and the working and idle state switching of the anti-collision protection device can be realized only by manually pressing.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides an angle protection mechanism and an LED display screen with the angle protection mechanism.
In order to achieve the purpose, the invention adopts the following technical scheme:
a corner protection mechanism comprises a base, a corner protection plate and a linkage assembly arranged between the corner protection plate and the base; the corner protection plate moves relative to the base through the linkage assembly; the linkage assembly comprises a first connecting rod hinged with the base and a second connecting rod hinged with the first connecting rod; the second connecting rod is hinged with a first supporting rod, and the first supporting rod is hinged with the corner protection plate; the first connecting rod is stopped against the angle protection plate, so that the angle protection plate and the first connecting rod are mutually driven.
The further technical scheme is as follows: the first end of the first supporting rod is hinged with the second connecting rod, the second end of the first supporting rod is hinged with the corner protection plate, and a hinged point of the first supporting rod and the base is located between a hinged point of the first supporting rod and the second connecting rod and a hinged point of the first supporting rod and the corner protection plate.
The further technical scheme is as follows: the linkage assembly further comprises a second support rod; the first end of the second supporting rod is hinged with the base, and the second end of the second supporting rod is hinged with the corner protection plate; the connecting lines are connected with the hinge point of the first supporting rod and the base and the hinge point of the second supporting rod and the base, the hinge point of the first supporting rod and the corner protection plate and the hinge point of the second supporting rod and the corner protection plate, the hinge points at two ends of the first supporting rod and the hinge points at two ends of the second supporting rod, and the connecting lines are connected end to form a quadrilateral connecting rod mechanism, so that the corner protection plate moves relative to the base when the corner protection plate is stressed; or when the first connecting rod is stressed, the linkage assembly drives the corner protection plate to move relative to the base. The second support bar can also be designed in two.
The further technical scheme is as follows: an elastic piece is arranged between the first connecting rod and the base, so that the first connecting rod has resetting force.
The further technical scheme is as follows: one end of the first connecting rod, which is far away from the second connecting rod, is provided with a connecting sheet; the connecting sheet is stopped against the corner protecting plate.
The further technical scheme is as follows: the first connecting rod is positioned and comprises a first hinged shaft fixedly connected with the base, a first transition rod and a second transition rod which are arranged along two radial directions of the first hinged shaft; the first transition rod is connected with the connecting sheet; the first transition rod is hinged with the second connecting rod; the first transition rod and the second transition rod form an included angle of 80-170 degrees.
The further technical scheme is as follows: the connecting sheet is of an arc-shaped structure; the corner protection plate is provided with a through hole matched with the connecting sheet.
The further technical scheme is as follows: the hinge point of the first connecting rod and the base is higher than the hinge point of the first supporting rod and the base; the hinge point of the first connecting rod and the base is higher than the hinge point of the second supporting rod and the base.
An LED display screen with an angle protection mechanism comprises a plurality of LED display units and the angle protection mechanism; the corner protection mechanism is arranged at the corner of the LED display unit; when the LED display units are spliced into the display screen, the angle protection mechanisms arranged on the LED display units correspond to the angle protection mechanisms of the adjacent LED display units.
The further technical scheme is as follows: when the angle protection mechanisms of the adjacent LED display units correspond to each other, the upper end surfaces of the angle protection plates are attached to each other.
Compared with the prior art, the invention has the beneficial effects that: the angle protection plate of the angle protection mechanism is connected with the base through the linkage assembly, the first connecting rod is in transmission connection with the angle protection plate through the connecting sheet, and the first connecting rod is in transmission connection with the first supporting rod through the second connecting rod so as to enable the angle protection plate to move in a translation mode relative to the base; and the first connecting rod is connected with the elastic piece, so that the whole linkage assembly has restoring force. When the angle protection plate is stressed, the elastic piece and the quadrilateral motion structure can absorb certain impact.
The corner protection mechanism is arranged at the corner of the LED display unit, so that the collision of disassembly, assembly and transportation is reduced, the damage is avoided, and the service life is prolonged. The mechanism is convenient to install and use on the LED display screen, does not need to be manually pressed to lock and unlock when the LED display screen box body is installed, and can realize idle time and working state switching by depending on the contact of the angle protection mechanism of the adjacent box body.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented according to the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more apparent, the following detailed description will be given of preferred embodiments.
Drawings
FIG. 1 is a perspective view of a corner protection mechanism of the present invention;
FIG. 2 is an exploded view of an angle protection mechanism of the present invention;
FIG. 3 is an exploded view from another perspective of a corner protection mechanism of the present invention;
FIG. 4 is a perspective view of a first link of the corner protection mechanism of the present invention;
FIG. 5 is an assembly view of an LED display screen with corner protection mechanisms according to the present invention;
FIG. 6 is a state diagram of adjacent corner protection mechanisms of an LED display screen with corner protection mechanisms according to the present invention before the LED display units are spliced;
FIG. 7 is a diagram of a state after the LED display units are spliced together, wherein the adjacent corner protection mechanisms of the LED display screen with the corner protection mechanisms are in accordance with the present invention;
FIG. 8 is a three-dimensional structure diagram of adjacent corner protection mechanisms of an LED display screen with corner protection mechanisms according to the present invention before the LED display units are spliced;
fig. 9 is a three-dimensional structural view of the adjacent corner protection mechanisms of the LED display screen with the corner protection mechanisms of the present invention after the LED display units are spliced.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings and the detailed description.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments 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.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be connected or detachably connected or integrated; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above should not be understood to necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by one skilled in the art.
FIGS. 1 to 9 are drawings of the present invention.
The present embodiment provides a corner protection mechanism Q, please refer to fig. 1 to 3, which includes a base 10, a corner protection plate 20, and a linkage assembly 30 disposed between the corner protection plate 20 and the base 10. The corner panel 20 is forced to move the corner panel 20 relative to the base 10 via the linkage assembly 30; or the linkage assembly 30 is forced to move the corner protector plate 20 relative to the base 10. The linkage assembly 30 includes a first link 31 hinged to the base 10, and a second link 32 hinged to the first link 31. The second connecting rod 32 is hinged with a first supporting rod 33, and the first supporting rod 33 is hinged with the corner protection plate 20. The first link 31 is stopped against the angle protection plate 20, so that the angle protection plate 20 is in transmission connection with the first link 31, that is, the upper end of the first link 31 contacts with the angle protection plate 20, so that the two transmit power mutually. When the angle protection plate 20 is pressed or stretched by an external force, the angle protection plate 20 drives the first link 31 to move, so that the linkage assembly 30 moves, and the angle protection plate 20 moves relative to the base 10. Or the first link 31 is pressed or stretched by an external force, so that the linkage assembly 30 drives the corner protection plate 20 to move relative to the base 10.
The first end of the first support rod 33 is hinged with the second connecting rod 32, the second end is hinged with the corner protection plate 20, and the hinge point of the first support rod 33 and the base 10 is positioned between the hinge point of the first support rod 33 and the second connecting rod 32 and the hinge point of the first support rod 33 and the corner protection plate 20. The hinge point of the first support rod 33 and the base 10 acts as a fulcrum, so that when the hinge point of the first end and the second link 32 is stressed, the second end of the first support rod 33 hinged with the corner protection plate 20 is stressed by an opposite force, so that the first support rod 33 not only plays a role of support, but also plays a role of lever.
Since the hinge point of the first support rod 33 and the second link rod 32 is located at the first end of the first support rod 33, so that the second link rod 32 is linked by the first link rod 31, and the first end of the first support rod 33 is forced, the first support rod 33 drives the corner protection plate 20 to move by using the base 10 as the hinge point. It is of course also possible that the hinge point of the first support bar 33 and the second link 32 is located between the hinge point of the first support bar 33 and the corner protection plate 20 and the hinge point of the first support bar 33 and the base 10, but in this way, without leverage, the transmission effect may be less pronounced.
The linkage assembly 30 may also include a second support bar 34. The second support bar 34 is hinged at a first end to the base 10 and at a second end to the corner guard 20. The connecting lines of the hinge point of the first support rod 33 and the base 10 and the hinge point of the second support rod 34 and the base 10, the connecting line of the hinge point of the first support rod 33 and the hinge point of the corner protection plate 20 and the hinge point of the second support rod 34 and the corner protection plate 20, the connecting line of the two hinge points on the first support rod 33 and the connecting line of the two hinge points on the second support rod 34 are connected end to form a quadrilateral linkage mechanism, so that when the corner protection plate 20 is stressed, the corner protection plate 20 moves relative to the base 10, or when the first connecting rod 31 is stressed, the linkage assembly 30 drives the corner protection plate 20 to move relative to the base 10. The second support bar 34 may be designed to be two, as shown in fig. 3, respectively located at the two rear sides of the first support bar 33.
An elastic member 11 is disposed between the first link 31 and the base 10 to make the first link 31 have a restoring force, and the elastic member 11 may be a compression spring or a torsion spring.
Preferably, the elastic member 11 is a torsion spring. The torsion spring is sleeved on the first hinge shaft 311 of the first connecting rod 31 and the base 10, and one end of the torsion spring is fixedly connected with the base 10, and the other end of the torsion spring is fixedly connected with the first connecting rod 31, so that when the first connecting rod 31 rotates, the torsion spring is compressed, and further the first connecting rod 31 and the base 10 generate torsion force. The elastic member 11 causes the first link 31 to generate a torsion force, thereby causing the link assembly 30 to have a restoring force.
The end of the first link 31 remote from the second link 32 is provided with a connecting piece 35. The connecting piece 35 is stopped against the corner protecting plate 20 so as to transmit power between the two. The connecting piece 35 is of an arc-shaped structure and is stopped against the corner plate 20, so that the movement of the corner plate 20 can drive the connecting piece 35 to move, and finally drive the first connecting rod 31 to move or the movement of the connecting piece 35 can drive the corner plate 20 to move, and preferably the connecting piece 35 is forced to move.
In this embodiment, the elastic force generated by the elastic member 11 has a self-locking function on the linkage assembly 30. The elastic member 11 generates an elastic force to make the connecting piece 35 of the first link 31 stop against the corner protecting plate 20, and the elastic member 11 generates an elastic force to make the linkage assembly 30 in an extended state. Since the linkage assembly 30 is in the extended state, the hinge point of the second link 32 and the first support bar 33 is located right below the hinge point of the first support bar 33 and the base 10, and the linkage assembly 30 has a self-locking function. When the connecting piece 35 receives a sufficiently large external force, the external force is larger than the elastic force of the elastic member 11, so that the elastic member 11 is compressed, the linkage assembly 30 is disturbed, the self-locking function is destroyed, and the corner protecting plate 20 moves relative to the base 10.
Wherein the first link 31 is located below the corner protection plate 20. The connecting piece 35 abuts against the corner panel 20 from the lower side of the corner panel 20.
Specifically, referring to fig. 2 to 4, the first link 31 includes a first hinge shaft 311 fixedly coupled to the base 10, a first transition rod 312 and a second transition rod 313 arranged along two radial directions of the first hinge shaft 311. The first transition bar 312 is coupled with the connecting piece 35. The second transition bar 313 is hinged to the second link 32. The first transition bar 312 forms an angle of 80-170 with the second transition bar 313. The connecting piece 35 is forced to move, and the second connecting rod 32 is pushed to move through the second transition rod 313.
In the free state of the corner protection mechanism Q, the elastic member 11 is also in the free state (i.e., the elastic member 11 does not generate an elastic force), and the corner protection plate 20 is extended upward with respect to the base 10. Referring to fig. 2 to 4, 6 to 7, or 8 to 9, it can be seen that the connecting portion 35 or the corner protection plate 20 is pressed downward, at this time, the hinge point of the second transition rod 313 and the second connecting rod 32 moves to the left and downward, the hinge point of the second connecting rod 32 and the first supporting rod 33 moves to the left, so that the hinge point of the first supporting rod 33 and the corner protection plate 10 moves to the right and downward, and the hinge point of the second supporting rod 34 and the corner protection plate 10 moves along with the hinge point of the first supporting rod 33 and the corner protection plate 10, so that the corner protection plate 20 moves to the right and downward relative to the base 10. The left lower side, and the right lower side are all in the paper surface direction of fig. 6 or 7. In actual movement, the corner guards 20 are a composite movement of up and down and side to side movement (in the direction of the page in fig. 6 or 7).
In other embodiments, the connecting piece 3 can be directly fixedly coupled or integrally formed with the first hinge shaft 311, and the first transition bar 312 can be omitted.
Preferably, the first connecting rod 31 is formed integrally with the connecting piece 35.
Preferably, the first end of the corner protection plate 20 is thinner than the second end, and has a certain inclination, that is, the cross section of the corner protection plate 20 is triangular, and when the first ends of the corner protection plates 20 of the upper and lower cases contact and interact, the second ends are separated from each other, thereby better protecting the cases.
Preferably, referring to fig. 3, the connecting piece 35 has an arc-shaped structure. The corner panel 20 is provided with a through hole 21 matching the attachment piece 35, and the attachment piece 35 extends from the through hole 21 to the upper end of the corner panel 20. The connecting piece 35 contacts with the inner wall of the through hole 21, so that the corner protecting plate 20 is driven by the movement of the connecting piece 35, and the connecting piece 35 is of an arc structure, so that the movement is smoother. Preferably, the arcuate configuration of the connecting tab 35 matches the curve of motion of the corner panel 20 such that the connecting tab 35 is always in contact with the corner panel 20 during the operation of the corner panel 20.
Referring to fig. 1, 2 and 6, the first supporting rod 33 is rotatably connected to the second hinge shaft 331, and the second hinge shaft 331 is fixedly connected to the base 10 and the corner protecting plate 20. A first end of the first support rod 33 is rotatably coupled by the second hinge shaft 331 fixedly coupled to the pin hole of the base 10, and a second end of the first support rod 33 is rotatably coupled by the second hinge shaft 331 fixedly coupled to the pin hole of the corner protective plate 20.
Similarly, the second support bar 34 is rotatably coupled to the third hinge shaft 341, and the third hinge shaft 341 is fixedly coupled to the base 10 and the corner protection plate 20. A first end of the second support bar 34 is rotatably coupled by a third hinge shaft 341 fixedly coupled with the pin hole of the base 10, and a second end of the second support bar 34 is rotatably coupled by a third hinge shaft 341 fixedly coupled with the pin hole of the corner protector 20. The hinge points at the two ends of the first support rod 33, the hinge points at the two ends of the second support rod 34 and the adjacent hinge points are connected to form a quadrilateral motion structure.
Preferably, referring to fig. 2, a first protrusion 12 is disposed on a side of the base 10 facing the corner plate 20, and the first protrusion 12 is formed with a pin hole fixedly coupled to the first hinge shaft 311, the second hinge shaft 331, and the third hinge shaft 341. The upper corner guard plate 20 is also provided with a second raised portion 23 on the side facing the base 10, and the second raised portion 23 is formed with a pin hole fixedly coupled to the second hinge shaft 331 and the third hinge shaft 341. When the first hinge shaft 311, the second hinge shaft 331, and the third hinge shaft 341 are inserted from the first protrusion 12, and are connected to the rotation holes of the first link 31, the first support rod 33, and the second support rod 34, and then are fixedly connected to the first protrusion 12. Similarly, the second hinge shaft 331 and the third hinge shaft 341 pass through the second raised portion 23, are coupled to the rotation holes of the first support rod 33 and the second support rod 34, and are fixed to the second raised portion 23.
In other embodiments, first hinge shaft 311 is fixed to first link 31, and first hinge shaft 311 is rotatably coupled with a pin hole on base 10. The second hinge shaft 331 is fixed to both ends of the first support rod 33, and the second hinge shaft 331 is rotatably coupled to pin holes of the base 10 and the corner protection plate 20, respectively. The third hinge shaft 341 is fixed at both ends of the second support bar 34, and the third hinge shaft 341 is rotatably coupled to the pin holes of the base 10 and the corner protection plate 20, respectively.
In order to better stress and generate the movement of the linkage assembly 30, a hinge point of the first link 31 and the base 10 (i.e., a rotation point of the first link 31 and the first hinge shaft 311) is higher than a hinge point of the first support 33 and the base 10 (i.e., a rotation point of the first end of the first support 33 and the second hinge shaft 331), and a hinge point of the first link 31 and the base 10 (i.e., a rotation point of the first link 31 and the first hinge shaft 311) is higher than a hinge point of the second support 34 and the base 10 (i.e., a rotation point of the first end of the second support 34 and the third hinge shaft 341), so that the first link 31 rotates to drive the second link 32 to move, and thus the first support 33 can move.
When the connecting piece 35 is squeezed by an external force, the connecting piece 35 moves to drive the first connecting rod 31 to move, the first connecting rod 31 moves to drive the second connecting rod 32 to move, so that the first supporting rod 33, the second supporting rod 34 and the corner protecting plate 20 are driven to move, and in this state, the elastic piece 11 is compressed by the force. When the external force of the connecting piece 35 disappears, the first connecting rod 31 moves under the action of the restoring force of the elastic piece 11, the connecting piece 35 drives the corner protecting plate 20 to return to move, the first connecting rod 31 drives the second connecting rod 32 to move, and the second connecting rod 32 drives the first supporting rod 33 to move, so that the linkage assembly 30 returns to the state that the elastic force of the elastic piece 11 disappears or is balanced.
Referring to fig. 1, 5 to 9, an LED display screen with an angle protection mechanism includes a plurality of LED display units 40, and the angle protection mechanism Q. The corner protection mechanism Q is arranged at the corner of the LED display unit 40; when the plurality of LED display units 40 are spliced into a display screen, the corner protection mechanisms Q arranged on the LED display units 40 correspond to the corner protection mechanisms Q on the adjacent LED display units 40.
Preferably, the LED display unit 40 has a quadrilateral structure, and the corner protection mechanisms Q are disposed at four corners of the upper and lower sides of the LED display unit 40. The base 10 of the corner protection mechanism Q is fixedly coupled to the mounting case 42 of the LED display unit 40.
When the corner protection mechanisms Q of the adjacent LED display units 40 are opposed to each other, the upper end surfaces of the corner protection plates 20 are opposed to each other. The connecting pieces 35 of adjacent corner protection mechanisms Q are in contact with each other. When the LED display units are spliced, the corner protection plate 20 or the connecting sheet 35 of each LED display unit 40 extrudes the corner protection plate 20 or the connecting sheet 35 of the adjacent LED display unit 40, so that the linkage assembly 30 moves, the corner protection plate 20 moves towards the base 10, and the elastic piece 11 is stressed and compressed, so that the adjacent LED display units 40 have elasticity, the splicing is firmer, and the corners of the display units 40 are also protected.
The LED display unit 40 includes an LED display module 41 and a mounting box 42. The corner protection mechanism Q is provided at a corner of the mounting box 42.
Before the LED display units 40 are spliced, the corner protection mechanism Q is not stressed to be in an extension state; after the LED display units 40 are spliced, the corner protection mechanisms Q are compressed by the pressing force of the corner protection mechanisms Q of the adjacent LED display units 40.
Referring to fig. 6 and 7, the connecting pieces 35 extend to the upper ends of the corner protection plates 20, so that when the LED display units 40 are spliced, the connecting pieces 35 of the adjacent corner protection mechanisms Q are pressed against each other, so that the connecting pieces 35 are stressed, the linkage assembly 30 is moved, and finally the corner protection plates 20 are moved. The radian of the connecting sheet 35 positioned above is smaller than that of the connecting sheet 35 positioned below, so that the connecting sheet 35 positioned above is wrapped on the outer side of the connecting sheet 35 positioned below, and the two connecting sheets 35 are stressed mutually.
Before splicing, the arc part of the connecting sheet 35 at the upper part is enveloped at the outer side of the arc part of the connecting sheet 35 at the lower part; during the splicing process, the arc part of the upper connecting sheet 35 moves relative to the arc part of the lower connecting sheet 35, is in an enveloping state, and passes through the through holes 21 of the upper corner protecting plate 20 and the lower corner protecting plate 20; after splicing, the arc portion of the upper connecting piece 35 is enveloped outside the arc portion of the lower connecting piece 35.
Compared with the prior art, the angle protection plate of the angle protection mechanism is connected with the base through the linkage assembly, the first connecting rod is in transmission connection with the angle protection plate through the connecting sheet, and the first connecting rod is in transmission connection with the first supporting rod through the second connecting rod so as to enable the angle protection plate to move relative to the base; and the first connecting rod is connected with the elastic piece, so that the whole linkage assembly has restoring force. When the force is applied, the elastic piece and the quadrilateral motion structure can absorb certain impact.
The corner protection mechanism is arranged at the corner of the LED display unit, so that the collision of disassembly, assembly and transportation is reduced, the damage is avoided, and the service life is prolonged. The mechanism is convenient to install and use on the LED display screen, does not need to be manually pressed to lock and unlock when the LED display screen box body is installed, and can realize idle time and working state switching by depending on the contact of the angle protection mechanism of the adjacent box body.
The technical contents of the present invention are further illustrated by the examples only for the convenience of the reader, but the embodiments of the present invention are not limited thereto, and any technical extension or re-creation based on the present invention is protected by the present invention. The protection scope of the invention is subject to the claims.
Claims (8)
1. A corner protection mechanism is characterized by comprising a base, a corner protection plate and a linkage assembly arranged between the corner protection plate and the base; the corner protection plate moves relative to the base through the linkage assembly; the linkage assembly comprises a first connecting rod hinged with the base and a second connecting rod hinged with the first connecting rod; the second connecting rod is hinged with a first supporting rod, and the first supporting rod is hinged with the corner protection plate; the first connecting rod is stopped against the angle protection plate so that the angle protection plate and the first connecting rod are mutually driven;
the first end of the first supporting rod is hinged with the second connecting rod, the second end of the first supporting rod is hinged with the corner protection plate, and a hinged point of the first supporting rod and the base is positioned between a hinged point of the first supporting rod and the corner protection plate and a hinged point of the first supporting rod and the second connecting rod;
the linkage assembly further comprises at least one second support bar; the first end of the second supporting rod is hinged with the base, and the second end of the second supporting rod is hinged with the corner protection plate.
2. The corner protector according to claim 1, wherein an elastic member is provided between the first link and the base to allow the first link to rotate to generate an elastic force.
3. The corner protection mechanism of claim 2, wherein the end of the first link remote from the second link is provided with a connecting piece; the connecting sheet is stopped against the corner protecting plate; or one end of the first connecting rod far away from the second connecting rod is stopped against the corner protection plate.
4. The corner protection mechanism according to claim 3, wherein the first link includes a first hinge shaft fixedly coupled to the base, a first transition lever and a second transition lever disposed along two radial directions of the first hinge shaft; the first transition rod is connected with the connecting sheet; the second transition rod is hinged with the second connecting rod.
5. The corner protection mechanism of claim 4, wherein the connecting piece is of an arc-shaped structure; the corner protection plate is provided with a through hole matched with the connecting sheet.
6. The corner protection mechanism of claim 5, wherein the hinge point of the first link and the base is higher than the hinge point of the first support rod and the base; the hinge point of the first connecting rod and the base is higher than the hinge point of the second supporting rod and the base.
7. An LED display screen with a corner protection mechanism, which is characterized by comprising a plurality of LED display units, the corner protection mechanism of any one of claims 1 to 6; the corner protection mechanism is arranged at the corner of the LED display unit; when the LED display units are spliced into the display screen, the angle protection mechanisms arranged on the LED display units correspond to the angle protection mechanisms of the adjacent LED display units.
8. The LED display screen with the corner protection mechanisms according to claim 7, wherein the upper end surfaces of the corner protection plates are in contact with each other or the connecting pieces are in contact with each other when the corner protection mechanisms of the adjacent LED display units are opposite.
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| CN201911319342.9A CN110972416B (en) | 2019-12-19 | 2019-12-19 | Angle protection mechanism and LED display screen with same |
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| CN201911319342.9A CN110972416B (en) | 2019-12-19 | 2019-12-19 | Angle protection mechanism and LED display screen with same |
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| CN110972416B true CN110972416B (en) | 2021-03-30 |
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| CN110972416A (en) | 2020-04-07 |
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