CN216087225U - LED display device with corner protection function - Google Patents

Abstract

The utility model discloses an LED display device with corner protection function, comprising a display and four corner protection devices, wherein each corner protection device comprises a protection body, a torsional spring, a limiting piece and a supporting seat fixed on the display, the protection body is rotatably arranged on the supporting seat through the limiting piece, the torsional spring acts between the protection body and the supporting seat, the supporting seat is provided with a first limiting hole, the protection body is provided with a second limiting hole corresponding to the first limiting hole, the limiting piece comprises a limiting pin and a plurality of clamping blocks convexly arranged on the outer side surface of the limiting pin, the clamping blocks can be slidably inserted into the first limiting hole and the second limiting hole, the protection body is provided with a first position covering the corner of the display and a second position separated from the corner of the display, when the protection body is at the first position, one end of each clamping block is positioned in the first limiting hole, the other end of each clamping block is positioned in the second limiting hole, the torsional spring is in a squeezing state, when the protection body is at the second position, the clamping block is separated from the first limiting hole and/or the second limiting hole. The corner protection device can protect four corners of the display.

Description

LED display device with corner protection function

Technical Field

The utility model relates to the technical field of electronic equipment protection, in particular to an LED display device with a corner protection function.

Background

With the high-speed development of the LED display, the requirements for installation, construction, safety protection, transportation and the like of the LED display are higher and higher, and particularly, the protection of the LED display is more and more emphasized in transportation.

The LED display comprises a supporting main body and an LED screen body, wherein the supporting main body is of a box-type structure, the LED screen body is generally exposed on the surface of the supporting main body, and in the rotary rolling transportation process, the corner parts of the LED display are extremely easy to collide, so that the attractiveness of the LED display is influenced, and the LED screen body can be seriously damaged, even, so that the abnormal display of the LED display is caused.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model aims to provide an LED display device with a corner protection function, which can effectively solve the problems that the corner of the LED display is easily collided during the transportation process of the conventional LED display, the attractiveness of the LED display is affected, and the LED screen body is seriously damaged or even damaged, so that the LED display has abnormal impression.

The utility model is realized by adopting the following technical scheme:

the utility model provides an LED display device with a corner protection function, which comprises a display and four corner protection devices respectively fixed at four corners of the display, wherein each corner protection device comprises a protection body, a torsion spring, a limiting piece and a supporting seat fixed on the display, the protection body is rotatably arranged on the supporting seat through the limiting piece, the torsion spring acts between the protection body and the supporting seat, the supporting seat is provided with a first limiting hole, the protection body is provided with a second limiting hole arranged corresponding to the first limiting hole, the limiting piece comprises a limiting pin and a plurality of clamping blocks convexly arranged on the outer side surface of the limiting pin, the clamping blocks can be inserted into the first limiting hole and the second limiting hole along with the limiting pin in a sliding manner, the protection body is provided with a first position covering the corners of the display and a second position separated from the corners of the display, when the protector is located at the first position, one end of the clamping block is located in the first limiting hole, the other end of the clamping block is located in the second limiting hole, the torsion spring is in an extrusion state, and when the protector is located at the second position, the clamping block is separated from the first limiting hole and/or the second limiting hole.

Furthermore, the fixture block is convexly arranged on the outer side surface of one end of the limiting pin, the supporting seat is provided with two first lugs which are arranged at intervals, the protective body is provided with two second lugs which are arranged at intervals, the two first lugs are respectively provided with a first through hole and a first limiting hole, the two second lugs are respectively provided with a second through hole and a second limiting hole, the torsion spring is positioned between the two second lugs, one end of the limiting pin is positioned in the first limiting hole, the other end of the limiting pin sequentially penetrates through the second limiting hole, the torsion spring, the second through hole and the first through hole and then is convexly exposed outside the supporting seat, when the protective body is positioned at the first position, one end of the limiting part, provided with the fixture block, is simultaneously inserted into the first limiting hole and the second limiting hole, when the protective body is positioned at the second position, one end of the limiting piece, which is provided with the clamping block, is separated from the second limiting hole.

Further, the supporting seat is including being fixed in base and two on the display are all protruding to be located a base side first lug, the protective body includes guard shield and two protruding locating a guard shield side second lug, the guard shield has the protection groove that covers the display corner, the torsional spring include coiled coil portion, with first knuckle arm that coil portion one end is connected and with the second knuckle arm that the coil portion other end is connected, first knuckle arm clamp is located the base with between the display, the second knuckle arm be located the guard shield with between the display, the one end of spacer pin is located first spacing downthehole, the other end of spacer pin passes in proper order behind second spacing hole, coil portion, second perforation and the first perforation and protruding being exposed outside the supporting seat.

Further, an included angle between the first torsion arm and the second torsion arm is smaller than 90 degrees.

Further, the guard shield includes apron and two curb plates that become the contained angle setting and connect, works as the protective body is in when the primary importance, the second lug all locates the one end of apron, two the curb plate all is located the other end of apron and all protruding the locating the bottom of apron, apron and two curb plates enclose jointly and synthesize the guard slot.

Further, the spacer pin includes round pin head and pin rod, the external diameter of round pin head is greater than the external diameter of pin rod, the one end of pin rod with the round pin head is connected, the other end of pin rod passes in proper order first spacing hole, the spacing hole of second, torsional spring, second are perforated and first perforation, the fixture block is protruding to be located on the lateral surface of pin rod and close to the one end setting of pin head.

Furthermore, the number of the clamping blocks is two, the two clamping blocks are respectively arranged on the outer side surface of the pin rod in a protruding mode in a back-to-back mode, the first limiting hole and the second limiting hole respectively comprise a through hole and two oppositely arranged extending holes, the two extending holes are communicated with the through hole, the pin rod is located in the through hole, and the clamping blocks can stretch into the extending holes along with the pin rod.

Furthermore, the corner protection device further comprises a screw cap and a spring, the outer diameters of the first lug and the screw cap are larger than the outer diameter of the spring, and the limiting pin sequentially penetrates through the first limiting hole, the second limiting hole, the torsion spring, the second through hole, the first through hole and the spring and then is connected with the screw cap.

Further, the spiral shell lid is including having the lid that holds the chamber and being located hold the bulge of intracavity, the bulge with a ring channel is enclosed to the lid, the bulge is equipped with the internal thread hole, the spacer pin have with internal thread hole matched with external screw thread, keeping away from of spring the one end of supporting seat stretch into in the ring channel.

Furthermore, the display comprises a box body and a screen body fixedly arranged on one surface of the box body, and the corner protection device is arranged on the box body.

Compared with the prior art, the utility model has the beneficial effects that:

the spring is always under compression stress to force the protection body to be tightly attached to the supporting seat, and the protection body and the supporting seat limit the protection body to rotate relative to the supporting seat around the axial direction of the limiting piece through the limiting action of the limiting piece and the torsion spring;

when the protector is at the first position, the protector is under the action of the spring force, the protector, the supporting seat and the torsion spring contact point are stressed, the fixture block on the limiting piece penetrates through the first limiting hole of the supporting seat and the second limiting hole of the protector to achieve the purpose of position self-locking, and in the state, when the protector is impacted by external force, the protector is supported by the stress of the limiting piece and the supporting seat, so that the protector is prevented from contacting with the display and isolating an external object from colliding with the display;

when the protective body is converted from the first position to the second position, the protective body presses the screw cap to force the second limiting hole of the clamping block on the limiting part under the action of the spring force, and the protective body is driven by the torsion of the torsion spring to force the protective body to rotate around the limiting part, so that the purpose of disengaging from the corner protection is achieved.

Drawings

Fig. 1 is a schematic structural diagram of an LED display device with a corner protection function according to an embodiment of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is a schematic view of a portion of the protective body of the embodiment of the present invention in a second position on the box;

fig. 4 is a first schematic structural diagram of a corner protection device according to an embodiment of the present invention;

fig. 5 is a second schematic structural diagram of a corner protection device according to an embodiment of the present invention;

fig. 6 is a partial cross-sectional view of a corner protector provided by an embodiment of the present invention;

fig. 7 is an exploded view of a corner guard provided in accordance with an embodiment of the present invention;

FIG. 8 is a schematic structural diagram of a torsion spring according to an embodiment of the present invention;

fig. 9 is a schematic structural view of a support seat according to an embodiment of the present invention;

fig. 10 is a schematic structural diagram of a limiting element according to an embodiment of the present invention;

fig. 11 is a schematic structural diagram of a screw cap according to an embodiment of the present invention.

In the figure: 10. a display; 11. a box body; 20. a corner protector; 21. a body protector; 211. a second lug; 2111. a second limiting hole; 2112. a second perforation; 212. a shield; 2121. a protective bath; 2122. a cover plate; 2123. a side plate; 2124. a wiring trough; 22. a torsion spring; 221. a coil section; 222. a first torque arm; 223. a second torque arm; 23. a limiting member; 231. a spacing pin; 2331. a pin head; 2332. a pin rod; 2333. an external thread; 232. a clamping block; 24. a supporting seat; 241. a first lug; 2411. a first limit hole; 2412. a first perforation; 2413. a through hole; 2414. an extension hole; 242. a base; 243. mounting holes; 25. a screw cap; 251. a cover body; 2511. an accommodating chamber; 252. a projection; 2521. an internally threaded bore; 253. an annular groove; 26. a spring.

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.

It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.

It will also be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

In addition, the descriptions related to "first", "second", etc. in the present invention are 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 at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

Referring to fig. 1 to 8, an embodiment of the utility model provides an LED display device with a corner protection function, which is referred to as an LED display device for short, the LED display device includes a display 10 and four corner protection devices 20, the four corner protection devices 20 are respectively fixed at four corners of the display 10, the corner protection devices 20 can cover the corners of the display 10, and are detachably mounted on the display 10, and the corner protection devices 20 can prevent a protection body 21 from contacting the display 10 and prevent a foreign object from colliding with the display 10.

In this embodiment, the corner protection device 20 includes a protection body 21, a torsion spring 22, a limiting member 23 and a supporting seat 24, the supporting seat 24 is fixed on the display 10, the protection body 21 is rotatably installed on the supporting seat 24 through the limiting member 23, the torsion spring 22 acts between the protection body 21 and the supporting seat 24, the supporting seat 24 has a first limiting hole 2411, the protection body 21 has a second limiting hole 2111 corresponding to the first limiting hole 2411, the limiting member 23 includes a limiting pin 231 and a plurality of clamping blocks 232 protruding on an outer side surface of the limiting pin 231, and the clamping blocks 232 can slide along with the limiting pin 231 and be inserted into the first limiting hole 2411 and the second limiting hole 2111.

The protective body 21 has a first position covering the corner of the display 10 and a second position separated from the corner of the display 10, as shown in fig. 2, the first position of the protective body 21 is shown in fig. 3, when the protective body 21 is at the first position, one end of the fixture block 232 is located in the first position 2411, the other end is located in the second position 2111, the fixture block 232 prevents the protective body 21 from rotating relative to the support base 24, at this time, the torsion spring 22 is in a compression state, when the protective body 21 is at the second position, the fixture block 232 can be separated from the first position 2411 and enter the second position 2111, or separated from the second position 2111 and enter the first position 2411, or directly exit the second position 2111 and the first position 2411, at this time, the first position 2411 and the second position 2111 are still engaged with the position pin 231 inside to play a role, but the compression deformation of the torsion spring 22 is not large before, the torsion spring 22 can force the protecting body 21 to disengage from the corner of the display 10 and press against the protecting body 21.

Specifically, the retaining block 232 in the retaining member 23 is protruded on the outer side surface of one end of the retaining pin 231, the supporting seat 24 has two first lugs 241 arranged at intervals, the protecting body 21 has two second lugs 211 arranged at intervals, the two first lugs 241 are respectively provided with a first through hole 2412 and a first retaining hole 2411, the two second lugs 211 are respectively provided with a second through hole 2112 and a second retaining hole 2111, the torsion spring 22 is located between the two second lugs 211, the two second lugs 211 are located between the two first lugs 241, one end of the retaining pin 231 is located in the first retaining hole 2411, the other end of the retaining pin 231 sequentially passes through the second retaining hole 2111, the torsion spring 22, the second through hole 2112 and the first through hole 2412 and is protruded outside the supporting seat 24, the retaining pin 231 needs to have a sufficient length, so that when the protecting body 21 is at the first position, the end of the retaining member 23 having the retaining block 232 is simultaneously inserted into the first retaining hole 2411 and the second retaining hole 2111, when the protective body 21 is at the second position, the end of the limiting member 23 having the locking block 232 is separated from the second limiting hole 2111.

The supporting seat 24 includes a base 242 and two first lugs 241, the base 242 is fixed on the display 10, the two first lugs 241 are both protruded on one side of the base 242, the protective body 21 includes a shield 212 and two second lugs 211 protruded on one side of the shield 212, the shield 212 has a protective slot 2121 covering the corner of the display 10, the torsion spring 22 includes a coiled coil portion 221, a first torsion arm 222 connected to one end of the coil portion 221, and a second torsion arm 223 connected to the other end of the coil portion 221, the first torsion arm 222 is sandwiched between the base 242 and the display 10, the second torsion arm 223 is sandwiched between the shield 212 and the display 10, one end of the position-limiting pin 231 is positioned in the first position-limiting hole 2411, and the other end of the position-limiting pin 231 sequentially passes through the second position-limiting hole 2111, the coil portion 221, the second through hole 2112, and the first through hole 2412 and is protruded out of the supporting seat 24.

Preferably, the included angle between the first torsion arm 222 and the second torsion arm 223 is smaller than 90 degrees, so that the torsion spring 22 will press against the protection body 21 when the torsion spring 22 is in the extended state.

In this embodiment, the cover 212 includes a cover 2122 and two side plates 2123 connected at an included angle, preferably, the two side plates 2123 are perpendicular to each other, when the protective body 21 is in the first position, the two second lugs 211 are both disposed at one end of the cover 2122, the two side plates 2123 are both disposed at the other end of the cover 2122 and are both protruded from the bottom of the cover 2122, the cover 2122 and the two side plates 2123 jointly enclose the protection slot 2121, and at this time, the bottom of the cover 2122 is recessed with a strip-shaped wire harness slot 2124 for calibrating the second torsion arm 223, so as to prevent the torsion spring 22 from being deflected too much when being deformed by being pressed.

Referring to fig. 9 to 10, the stopper pin 231 includes a pin head 2331 and a pin rod 2332, the outer diameter of the pin head 2331 is greater than the outer diameter of the pin rod 2332, one end of the pin rod 2332 is connected to the pin head 2331, the other end of the pin rod 2332 sequentially passes through the first stopper hole 2411, the second stopper hole 2111, the torsion spring 22, the second through hole 2112 and the first through hole 2412 and then protrudes out of the support seat 24, so that the movement of the stopper pin 231 can be limited in one direction, and the stopper block 232 is protruded on the outer side surface of the pin rod 2332 and disposed near one end of the pin head 2331.

As a preferred embodiment, the number of the two fixture blocks 232 is two, the two fixture blocks 232 are respectively disposed on the outer side surface of the pin rod 2332 in an opposite protruding manner, the first limiting hole 2411 and the second limiting hole 2111 both include a through hole 2413 and two extending holes 2414 disposed oppositely, the two extending holes 2414 are both communicated with the through hole 2413, the pin rod 2332 is located in the through hole 2413, the fixture block 232 can extend into the extending holes 2414 along with the pin rod 2332, the two fixture blocks 232 can increase the overall strength of the limiting member 23, and the fixture block 232 on the limiting member 23 is prevented from being broken when a foreign object collides with the corner protector 20.

In a preferred embodiment, the corner protection device 20 further includes a screw cap 25 and a spring 26, the outer diameters of the first lug 241 and the screw cap 25 are both larger than the outer diameter of the spring 26, the limiting pin 231 sequentially passes through the first limiting hole 2411, the second limiting hole 2111, the torsion spring 22, the second through hole 2112, the first through hole 2412 and the spring 26 and then is connected to the screw cap 25, the spring 26 elastically compresses the screw cap 25, and the screw cap 25 and the pin head 2331 can limit the movement of the limiting pin 231 from two directions, so as to avoid the movement of the limiting member 23 during use.

Referring further to fig. 11, as a preferred embodiment, the screw cap 25 includes a cap body 251 having a receiving cavity 2511 and a protruding portion 252 located in the receiving cavity 2511, the protruding portion 252 is circular, the protruding portion 252 and the cap body 251 form an annular groove 253, the protruding portion 252 is provided with an internal threaded hole 2521 along an axial direction thereof, the stopper pin 231 has an external thread 2333 matched with the internal threaded hole 2521, an end of the spring 26 away from the supporting seat 24 extends into the annular groove 253, and the annular groove 253 can guide the spring 26.

In this embodiment, the display 10 includes a box 11 and a screen fixed on one side of the box 11, the supporting seat 24 of the corner protector 20 is installed on one side of the box 11 away from the screen, when the protecting body 21 is at the first position, the protecting groove 2121 on the protecting body 21 and the corner of the box 11 are disposed at an interval, the protecting body 21 and the supporting seat 24 have a limiting and self-locking function through the torsion spring 22 and the limiting piece 23, even if the protecting body 21 is under an external force, the protecting body 21 can effectively avoid the contact between the protecting body 21 and the display 10 and prevent the external object from colliding with the display 10 due to the support of the supporting seat 24.

The LED display device with the corner protection function further comprises a plurality of fasteners, the bottom of the supporting seat 24 is further provided with a plurality of mounting holes 243, a plurality of third through holes are formed in the box body 11, the fasteners penetrate through the third through holes from the interior of the box body 11 and then are connected with the mounting holes 243, and therefore the supporting seat 24 is fixed on the box body 11.

The working principle of the LED display equipment with the corner protection function is as follows:

firstly, assembling the corner protection devices 20, then respectively installing the four corner protection devices 20 at four corners of one surface of the box body 11 away from the screen body, at this time, fixing the first torsion arm 222 on the torsion spring 22 between the base 242 and the box body 11, positioning the second torsion arm 223 on the torsion spring 22 between the shield 212 and the display 10, when the corners of the display 10 need to be protected, pressing the screw cap 25 inwards to make the fixture block 232 on the limiting member 23 slide away from the second limiting hole 2111 of the protection body 21, keeping the posture, turning the protection body 21 to the first position by hand, then loosening the screw cap 25 to make the fixture block 232 on the limiting member 23 clamped in the first limiting hole 2411 of the supporting seat 24 and the second limiting hole 2111 of the protection body 21, so that the protection body 21 will not rotate relative to the supporting seat 24, thereby achieving the purpose of self-locking;

when the corner of the display 10 does not need to be protected any more, the screw cap 25 is pressed inward, so that the fixture block 232 on the limiting member 23 slides out of the second limiting hole 2111 of the protector 21, at this time, the torsion spring 22 can turn over the protector 21 from the first position to the second position under the action of its own elasticity, and then the screw cap 25 is loosened, and at this time, the fixture block 232 is mostly clamped in the first limiting hole 2411 of the support seat 24.

In summary, the spring 26 of the present invention is always under compressive stress, so as to force the protection body 21 to tightly attach to the supporting seat 24, and the protection body 21 and the supporting seat 24 are limited by the limiting member 23 and the torsion spring 22, so that the protection body 21 is limited to rotate around the axial direction of the limiting member 23 relative to the supporting seat 24;

when the protection body 21 is at the first position, the contact point of the protection body 21, the supporting seat 24 and the torsion spring 22 is stressed under the action of the spring 26, the fixture block 232 on the limiting piece 23 passes through the first limiting hole 2411 of the supporting seat 24 and the second limiting hole 2111 of the protection body 21, so as to achieve the purpose of position self-locking, and in this state, when the protection body 21 is impacted by external force, the protection body 21 is supported by the limiting piece 23 and the supporting seat 24 under stress, so that the protection body 21 is prevented from contacting the display 10 and isolating foreign objects from colliding the display 10;

when the protection body 21 is switched from the first position to the second position, the protection body 21 presses the screw cap 25 inwards under the action of the spring 26 to force the fixture block 232 on the limiting member 23 to be separated from the second limiting hole 2111, and the protection body 21 is forced to rotate around the limiting member 23 under the driving of the torsion force of the torsion spring 22, so that the purpose of separating from corner protection is achieved;

when the corner protection device 20 is in the first position, the corner protection device can be flatly placed and supported by the protection body 21, and bears the weight of dozens of kilograms without deformation and displacement, so that the corner protection function of the display 10 is greatly enhanced.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are within the protection scope of the present invention.

Claims (10)

1. The utility model provides a LED display device with corner safeguard function which characterized in that: the corner protector comprises a display and four corner protectors fixed at four corners of the display respectively, the corner protectors comprise protectors, torsional springs, limiting parts and supporting seats fixed on the display, the protectors are rotatably installed on the supporting seats through the limiting parts, the torsional springs act between the protectors and the supporting seats, the supporting seats are provided with first limiting holes, the protectors are provided with second limiting holes corresponding to the first limiting holes, the limiting parts comprise limiting pins and a plurality of clamping blocks convexly arranged on the outer side surfaces of the limiting pins, the clamping blocks can be inserted into the first limiting holes and the second limiting holes along with the limiting pins in a sliding manner, the protectors are provided with first positions covering the corners of the display and second positions breaking away from the corners of the display, when the protectors are positioned at the first positions, one end of the clamping block is located in the first limiting hole, the other end of the clamping block is located in the second limiting hole, the torsion spring is in an extrusion state, and when the protection body is located at the second position, the clamping block is separated from the first limiting hole and/or the second limiting hole.

2. The LED display device with corner protection as claimed in claim 1, wherein: the clamping block is convexly arranged on the outer side surface of one end of the limiting pin, the supporting seat is provided with two first lugs which are arranged at intervals, the protective body is provided with two second lugs arranged at intervals, the two first lugs are respectively provided with a first through hole and a first limit hole, the two second lugs are respectively provided with a second through hole and a second limit hole, the torsion spring is positioned between the two second lugs, one end of the limiting pin is positioned in the first limiting hole, the other end of the limiting pin sequentially passes through the second limiting hole, the torsion spring, the second through hole and the first through hole and then is protruded out of the supporting seat, when the protector is at the first position, one end of the limiting member having the clamping block is inserted into the first limiting hole and the second limiting hole simultaneously, when the protector is at the second position, the end of the limiting member having the block is separated from the second limiting hole.

3. The LED display device with corner protection as claimed in claim 2, wherein: the supporting seat is including being fixed in base and two on the display are all protruding to be located a base side first lug, the protective body includes that guard shield and two are protruding to be located a guard shield side second lug, the guard shield has the cover the protection groove of display corner, the torsional spring including curled coil portion, with first knuckle that coil portion one end is connected and with the second knuckle that the coil portion other end is connected, first knuckle clamp is located the base with between the display, the second knuckle be located the guard shield with between the display, the one end of spacer pin is located first spacing downthehole, the other end of spacer pin passes in proper order after second spacing hole, coil portion, second perforation and first perforation and protruding to be exposed outside the supporting seat.

4. The LED display device with corner protection as claimed in claim 3, wherein: the included angle between the first torsion arm and the second torsion arm is smaller than 90 degrees.

5. The LED display device with corner protection as claimed in claim 3, wherein: the guard shield includes apron and two curb plates that become the contained angle setting and connect, works as the protective body is in when the primary importance, the second lug is all located the one end of apron, two the curb plate all is located the other end of apron and all protruding the locating the bottom of apron, apron and two curb plates enclose jointly and become the protective housing.

6. The LED display device with corner protection as claimed in claim 2, wherein: the spacer pin includes round pin head and pin rod, the external diameter of round pin head is greater than the external diameter of pin rod, the one end of pin rod with the round pin head is connected, the other end of pin rod passes in proper order first spacing hole, the spacing hole of second, torsional spring, second are perforated and first perforation, the protruding locating of fixture block on the lateral surface of pin rod and near the one end setting of round pin head.

7. The LED display device with corner protection as claimed in claim 6, wherein: the number of the clamping blocks is two, the two clamping blocks are respectively arranged on the outer side surface of the pin rod in a protruding mode in a back-to-back mode, the first limiting hole and the second limiting hole respectively comprise a through hole and two oppositely arranged extending holes, the two extending holes are communicated with the through hole, the pin rod is located in the through hole, and the clamping blocks can stretch into the extending holes along with the pin rod.

8. The LED display device with corner protection as claimed in claim 2, wherein: the corner protection device further comprises a screw cap and a spring, the outer diameters of the first lug and the screw cap are larger than the outer diameter of the spring, and the limiting pin sequentially penetrates through the first limiting hole, the second limiting hole, the torsion spring, the second through hole, the first through hole and the spring and then is connected with the screw cap.

9. The LED display device with corner protection as claimed in claim 8, wherein: the spiral shell lid is including having the lid that holds the chamber and being located hold the bulge of intracavity, the bulge with the lid encloses into an annular groove, the bulge is equipped with the internal thread hole, the spacer pin have with internal thread hole matched with external screw thread, keeping away from of spring the one end of supporting seat stretch into in the annular groove.

10. The LED display device with corner protection as claimed in claim 1, wherein: the display comprises a box body and a screen body fixedly arranged on one surface of the box body, and the corner protector is arranged on the box body.

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