Disclosure of Invention
The invention aims to provide an LED display screen, and aims to solve the problem that the existing LED display screen is inconvenient to operate when a control assembly is maintained.
In order to achieve the purpose, the invention adopts the technical scheme that: the utility model provides a LED display screen, includes the box, slidable mounting in a plurality of display module on the box and electric connection in display module's control assembly, control assembly install in on the box, and, display module will control assembly covers, display module towards keeping away from control assembly's direction slides so that control assembly shows.
In one embodiment, the display assemblies are distributed in two rows in the width direction of the box body, and the moving direction of the display assemblies is consistent with the width direction or the length direction of the box body; the two rows of display components are abutted to cover the control component, or one row of the display components covers the control component.
In one embodiment, the display assemblies are distributed in two rows in the width direction of the box body, the moving direction of the display assemblies forms an included angle with the width direction or the length direction of the box body, and the two rows of the display assemblies are abutted to cover the control assembly, or one row of the display assemblies covers the control assembly.
In one embodiment, the LED display screen further includes a sliding mechanism, the box body is provided with a mounting bracket for connecting the display assembly, and the sliding mechanism includes a sliding groove formed in the mounting bracket and a limiting member arranged on the display assembly and adapted to the sliding groove; or, the sliding mechanism comprises a sliding groove arranged on the display component and a limiting part arranged on the mounting rack and matched with the sliding groove.
In one embodiment, the stopper includes a movable rod capable of moving in a direction perpendicular to a display surface of the display assembly; or, the limiting part comprises a telescopic rod capable of stretching along a direction perpendicular to the display surface of the display assembly.
In one embodiment, the limiting member further includes a sleeve for limiting the movable rod, and two sets of positioning structures matched with the sleeve are arranged on the movable rod along the moving direction of the movable rod.
In one embodiment, the positioning structure includes a positioning hole formed in the movable rod, a spring disposed in the positioning hole, and beads abutting against two ends of the spring, and one side of the sleeve abutting against the movable rod is provided with a limiting groove adapted to the beads.
In one embodiment, the limiting member includes a limiting plate for limiting the mounting frame or the display module to be separated from the sliding groove, the LED display screen further includes a mounting hole disposed at an end of the sliding groove and communicated with the sliding groove, and the mounting hole can allow the limiting plate to pass through.
In one embodiment, the LED display screen further includes a locking member for fixing the display module to the mounting bracket, the locking member includes a lock button and a rotating shaft having two ends respectively connected to the lock button and the display module, and the mounting bracket is provided with a lock hole matched with the lock button.
In one embodiment, the control assembly includes a control box fixed on the box body and a plurality of control box covers detachably mounted on the control box, and each control box cover is arranged corresponding to each display assembly.
The invention has the beneficial effects that: in the LED display screen, the control assembly at the corresponding position of the display assembly can be maintained by moving the display assembly, and compared with the prior art, the structure solves the problem that the control assembly can only be maintained by integrally disassembling the display screen when the conventional LED display screen is maintained; moreover, the control assembly can be exposed after the display assembly is moved, so that the control assembly can be maintained from the front end face of the LED display screen, and the problem that the control assembly needs to be moved or rotated integrally in the maintenance process is solved; and when maintaining, can have pointed to certain control assembly somewhere to operate, avoided needing to carry out the dismouting to control assembly wholly, the inconvenient problem of operation, from this, the LED display screen that this application provided is when maintaining control assembly to needs, the operation mode is simple, it is little to receive the environmental impact restriction, consuming time is shorter, the cost is lower, can also avoid when high altitude construction because the maintenance space is little, the problem of inconvenient storage, can reduce the risk that drops in the high altitude construction transportation simultaneously, the security is higher.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed 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 fixedly connected, detachably connected, or integrally formed; 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.
Referring to fig. 1 to 9, an LED display screen 100 of the present application is shown, which includes a box 10, a plurality of display elements 20 slidably mounted on the box 10, and a control element 30 electrically connected to the display elements 20, wherein the control element 30 is mounted on the box 10, the display elements 20 cover the control element 30, and the display elements 20 slide in a direction away from the control element 30 to expose the control element 30. Then, the control assembly 30 at the corresponding position of the display assembly 20 can be maintained by moving the display assembly 20, and compared with the prior art, the structure solves the problem that the control assembly 30 can be maintained only by disassembling the whole display screen when the existing LED display screen 100 is maintained; moreover, after the display component 20 is moved, the control component 30 can be exposed, so that the control component 30 can be repaired from the front end face of the LED display screen 100, and the problem that the control component 30 needs to be moved or rotated integrally in the maintenance process is solved; and when maintaining, can have pointed to certain control assembly 30 somewhere to carry out the operation, avoided needing to carry out the dismouting to control assembly 30 wholly, the inconvenient problem of operation can also be avoided because the maintenance space is little when can also avoid high altitude construction, can reduce the risk that drops in the high altitude construction transportation simultaneously, and the security is higher.
Referring to fig. 1, as an embodiment of the LED display screen 100 provided by the present application, the display modules 20 are distributed in two rows in the width direction of the box 10, the display modules 20 slide in the width direction of the box 10, and the two rows of display modules 20 cover the control module 30 when abutting, that is, the control module 30 is located at the boundary between the two rows of display modules 20. Specifically, the box body 10 is a rectangular body, the display assemblies 20 have the same size, each display assembly 20 is divided into two rows in the width direction of the box body 10, the two display assemblies 20 located on two sides of the central line of the box body 10 cover the control assembly 30 when approaching the central line of the box body 10, and the control assembly 30 can be exposed by moving the corresponding two display assemblies 20 respectively to the direction far away from the central line of the box body 10, so that the control assembly 30 is maintained. The control assembly 30 is installed on the central line of the box 10, so that on one hand, the installation positions of the control assemblies 30 and the display assembly 20 are conveniently arranged, and on the other hand, the connection between the control assemblies 30 and the display assembly 20 is more conveniently carried out. Meanwhile, since the control members 30 themselves have a certain size, one control member 30 is covered by the two display members 20 cooperating with each other, so that one display member 20 only needs to move a relatively short distance to expose the control member 30. In further embodiments, the display assemblies 20 may be divided into two rows along the length direction of the box 10, and the display assemblies 20 may be further arranged in four rows, six rows, eight rows, and the like along the length direction or the width direction of the box 10, as long as the display assemblies 20 are arranged in multiple rows of two, each two rows of the display assemblies 20 correspond to one group of the control assemblies 30, and each two rows of the display assemblies 20 cover one group of the control assemblies 30 when abutting against each other, that is, the arrangement direction and the specific number of the display assemblies 20 may be selected according to actual requirements.
In an alternative embodiment, the display assemblies 20 are distributed in two rows in the width direction of the box 10, the display assemblies 20 slide in the width direction of the box 10, and one row of the display assemblies 20 covers the control assembly 30, so that the control assembly 30 can be exposed by moving only one display assembly 20 covering the control assembly 30, and the control assembly 30 can be maintained. In this embodiment, the width of the display module 20 covering the control module 30 is smaller than the width of the display module 20 not covering the control module 30, so that the load of the display module 20 on the box 10 during the moving process is less, and the operation of the worker is more convenient. In further embodiments, the display modules 20 may also be divided into two rows along the length direction of the box 10, and the two rows may be selected according to actual requirements.
In an alternative embodiment, the display modules 20 are arranged in two rows in the width direction of the housing 10, and the moving direction of the display modules 20 forms an angle with the width direction or the length direction of the housing 10. Each display assembly 20 is abutted near the center line of the box 10, a certain included angle is formed between the display assemblies 20 positioned on the two sides of the center line, two columns of display assemblies 20 formed finally after being sequentially arranged are inclined by a certain included angle relative to the frame of the box 10, and the sliding direction of the display assemblies 20 is consistent with the inclined direction thereof. This arrangement provides more possibilities for installation of the display assembly 20, and the effect presented after installation can satisfy more demands. In further embodiments, the display modules 20 may also be divided into two rows along the length direction of the box 10, and the two rows may be selected according to actual requirements.
Referring to fig. 2 to fig. 4, as an embodiment of the LED display screen 100 provided in the present application, the LED display screen 100 further includes a sliding mechanism, the box 10 includes a mounting frame 11 for mounting the display module 20, the sliding mechanism includes a sliding slot 111 disposed on the mounting frame 11, and a limiting member 21 disposed on the display module 20 and adapted to the sliding slot 111, and the limiting member 21 moves within a stroke range of the sliding slot 111. The mounting bracket 11 is used for fixing the display module 20, so that the display module 20 can be stably mounted on the box body 10 and can move relative to the box body 10 through the limiting member 21, and meanwhile, the sliding groove 111 on the mounting bracket 11 limits the moving range of the display module 20, so that the display module 20 can move to expose the control module 30 without unlimited movement.
Further, the mounting frame 11 is transversely disposed on the box body 10, two sliding grooves 111 are formed in the mounting frame 11 located at the top of the box body 10, the two sliding grooves 111 are symmetrical about a center line of the box body 10 and are arranged along the length direction of the mounting frame 11, and two display assemblies 20 mounted near the top of the box body 10 are respectively and correspondingly mounted in the two sliding grooves 111 of the mounting frame 11; two sliding grooves 111 are formed in the mounting frame 11 located at the bottom of the box body 10, the two sliding grooves 111 are symmetrical about the center line of the box body 10 and are arranged along the length direction of the mounting frame 11, and two display assemblies 20 mounted close to the bottom of the box body 10 are respectively and correspondingly mounted in the two sliding grooves 111 of the mounting frame 11; except for two mounting brackets 11 located at the top of the box body 10 and at the bottom of the box body 10, four sliding grooves 111 are formed in each mounting bracket 11, the four sliding grooves 111 are symmetrical about the central line of the box body 10, and four display assemblies 20 located on the peripheral sides of the mounting brackets 11 are correspondingly mounted in the sliding grooves 111 respectively, so that the upper side and the lower side of any display assembly 20 are correspondingly mounted in one sliding groove 111 through limiting pieces 21 respectively, and therefore each display assembly 20 is stably mounted and stably moves. It is understood that, depending on the size of the display module 20, in order to ensure the stability of the installation and movement of the display module 20, more mounting brackets 11 may be provided on the box body 10 corresponding to the display module 20, or more sliding grooves 111 may be provided on each mounting bracket 11.
Optionally, the LED display screen 100 further includes a sliding mechanism, the box body 10 includes a mounting bracket 11 for mounting the display assembly 20, the sliding mechanism includes a sliding groove 111 disposed on one side of the display assembly 20 close to the mounting bracket 11, and a limiting member 21 disposed on the mounting bracket 11 and adapted to the sliding groove 111, and the limiting member 21 moves within a stroke range of the sliding groove 111. The limiting member 21 is fixed on the mounting block 11, when the limiting member 21 moves in the sliding groove 111, the display module 20 moves relative to the box body 10, and the mounting block 11 plays a role in fixing the display module 20, so that the display module 20 can be stably mounted on the box body 10 and move relative to the box body 10 through the matching of the limiting member 21 and the sliding groove 111.
Referring to fig. 4-6, as an embodiment of the LED display screen 100 provided by the present application, the position-limiting member 21 includes a movable rod 211 capable of moving in a direction perpendicular to the display surface of the display module 20, and the display module 20 is connected to the movable rod 211, so that when the movable rod 211 moves, the display module 20 correspondingly moves together, the display module 20 connected to the movable rod 211 can also move in a direction perpendicular to the display surface of the display module 20, and when the display module 20 moves in a direction away from the box body, the display module 20 can be separated from the frame of the box body 10, so as to smoothly slide on the box body 10.
In an alternative embodiment, the movable rod 211 is connected to the mounting frame 11, and the mounting frame 11 is fixed, so that the movable rod 211 moves relative to the display module 20 in a direction perpendicular to the display surface of the display module 20, that is, the display module 20 moves, and the display module 20 further moves out of the frame of the box 10 in a direction perpendicular to the display surface of the display module 20, so as to further slide along the width or length direction of the box 10.
In an alternative embodiment, the position-limiting member 21 includes a telescopic rod capable of extending and retracting in a direction perpendicular to the display surface of the display module 20, the telescopic rod is connected to the display module 20, when the telescopic rod extends and retracts, a distance between the display module 20 connected to the telescopic rod and the mounting frame 11 is changed, and the display module 20 is further separated from the frame of the box 10 in the direction perpendicular to the display surface of the display module 20, so as to further slide in the width direction or the length direction of the box 10.
In an alternative embodiment, the position limiting member 21 includes a telescopic rod capable of extending and retracting in a direction perpendicular to the display surface of the display module 20, the telescopic rod is connected to the mounting frame 11, when the telescopic rod extends and retracts, a distance between the mounting frame 11 connected to the telescopic rod and the display module 20 changes, and the position of the mounting frame 11 is fixed, so that the display module 20 actually moves, and the display module 20 further comes out of the frame of the box 10 in the direction perpendicular to the display surface of the display module 20, so as to further slide in the width or length direction of the box 10.
In an alternative embodiment, the limiting member 21 includes a connecting rod, the connecting rod is connected to the display assembly 20, the mounting frame 11 is provided with a sliding slot 111, and when the frame of the box 10 does not limit the display assembly 20, the display assembly 20 can directly move in the sliding slot 111 through the connecting rod, so that the control assembly 30 is exposed. In other embodiments, the connecting rod may also be connected to the mounting frame 11, and when the frame of the box 10 does not limit the display module 20, the display module 20 may also slide.
Referring to fig. 5 and fig. 6, as an embodiment of the LED display screen 100 provided by the present application, the limiting member 21 further includes a sleeve 212 for limiting the movable rod 211, and two sets of positioning structures 214 matched with the sleeve 212 are disposed on the movable rod 211 along a moving direction of the movable rod 211. The movable rod 211 moves in the sleeve 212, and when the movable rod 211 moves to the position where the positioning structure 214 is connected with the sleeve 213, the sleeve 213 can position the movable rod 211, so as to avoid the situation that the movable rod 211 moves without limitation, so as to be separated from the sliding groove 111.
Specifically, the sleeve 212 is provided with a through hole 2121 for the movable rod 211 to move, the movable rod 211 and the through hole 2121 have the same size, and the through hole 2121 is a special-shaped hole, and after the movable rod 211 is placed therein, the movable rod 211 can only slide along the length direction, and does not rotate relatively. The sleeve 212 prevents the movable rod 211 from directly contacting with the wall of the sliding slot 111, so that the movable rod 211 is more convenient to move, and the movable rod 211 is prevented from being worn when the limiting member 21 moves in the sliding slot 111. Two groups of positioning structures 214 are arranged on the movable rod 211 in the direction of the extension degree, the distance between the two groups of positioning structures 214 is the moving range of the movable rod 211, one group of positioning structures 214 is relatively closer to the display assembly 20, when the positioning structures 214 are aligned with the sleeve 212, the position of the display assembly 20 connected with the movable rod 211 is determined, and the display assembly 20 is further installed on the box body 10; when the other set of positioning structures 214 is aligned with the sleeve 212, the display module 20 is away from the sleeve 212 and further away from the housing 10, so as to be able to move in the sliding slot 111.
Referring to fig. 5-6, fig. 8-9, as an embodiment of the LED display panel 100 of the present application, the positioning structure 214 includes a positioning hole 2141 disposed on the movable rod 211, a spring 2143 disposed in the positioning hole 2141, and beads 2142 abutting against two ends of the spring 2143, a limit groove adapted to the beads 2142 is disposed on one side of the sleeve 212 abutting against the movable rod 211, when the movable rod 222 moves, after the beads 2142 in the positioning structure 214 sink into the limit groove, the movable rod 211 is positioned in the sleeve 212, and an operator can know that the movable rod 211 has moved to a position to be moved when feeling the locking process during operation, so that the operation is more convenient. Because the spring 2143 has elasticity, after the wave bead 2142 sinks into the limiting groove, a certain force acts on the movable rod 211 along the moving direction of the movable rod 211, so that the wave bead 2142 moves into the positioning hole 2141, the movable rod 211 can move relative to the sleeve 212, the movable rod 211 and the sleeve 212 can be detached while the moving requirement is met, and the movable rod 211 or the sleeve 212 can be replaced conveniently. When the movable rod 211 moves in the sleeve 212, the wave beads 2142 always abut against the wall of the sleeve 212 when contacting the sleeve 212 due to the action of the spring 2143, so that the operator can receive a certain resistance when moving the movable rod 211, a certain buffering effect is provided for the operation process, and the display module 20 and the box body 10 can be protected to a certain extent.
In an alternative embodiment, the positioning structure 214 is a baffle protruding from the movable rod 211, the movable rod 211 moves on the sleeve 212 within the range of two baffles, when any one baffle abuts against the sleeve 212, the movable rod 211 is restricted from moving, so as to prevent the movable rod 211 from falling out of the sleeve.
Referring to fig. 2 and fig. 4, as an embodiment of the LED display screen 100 provided by the present application, the limiting member 21 includes a limiting plate 213 for limiting the display module 20 to be separated from the sliding slot 111, the LED display screen 100 further includes a mounting hole 112 disposed at an end of the sliding slot 111 and communicated with the sliding slot 111, and the mounting hole 112 is capable of allowing the limiting plate 213 to pass through. The size of the sleeve 212 is equivalent to the size of the sliding groove 111, the limit plate 213 is located on one side of the mounting frame 11 away from the display assembly 20, the limit plate 213 prevents the sleeve 212 and even the whole limit piece 21 from falling off the sliding groove 111, the mounting hole 112 is located on one end of the sliding groove 111 away from the control assembly 30, after the limit piece 21 moves to the position of the mounting hole 112, because the size of the mounting hole 112 is larger than or equal to the size of the limit plate 213, the limit plate 213 can penetrate through the mounting hole 112 and further enables the whole limit piece 21 to fall off from the mounting hole 112, the display assembly 20 correspondingly falls off from the mounting frame 11, and therefore the display assembly 20 can be detached for maintenance or replacement.
Furthermore, as shown in fig. 6, in this embodiment, the limiting plate 213 is detachably connected to the sleeve 212, the movable rod 211 moves in the limiting plate 213, the sliding groove 111 is formed in the mounting frame 11, the movable rod 211 is connected to the display module 20, and the limiting plate 213 limits the sleeve 212 in the sliding groove 111 from a side of the sleeve 212 far away from the display module 20, so that an operator can detach the limiting plate 213 from the back of the box 10 when performing maintenance, thereby detaching the display module 20, that is, the operator can also maintain the LED display screen 100 from the back of the LED display screen 100.
In an optional embodiment, the limiting member 21 includes a limiting plate 213 for limiting the mounting block 10 to be disengaged from the sliding groove 111, the LED display screen 100 further includes a mounting hole 112 disposed at an end of the sliding groove 111 and communicated with the sliding groove 111, the mounting hole 112 can allow the limiting plate 213 to pass through, the sliding groove 111 is disposed on the display module 20, the mounting hole 112 communicated with the sliding groove 111 is disposed at an end of the sliding groove 111 close to the control module 30, the limiting member 21 is disposed on the mounting block 11, and the limiting member 21 includes an expansion link, so that when the display module 20 moves in a direction away from the control module 30, the limiting member 21 can finally be disengaged from the sliding groove 111 from the mounting hole 112, and the display module 20 correspondingly disengages from the mounting block 11, so that the display module 20 can be detached for maintenance or replacement.
Referring to fig. 4 and 7, as an embodiment of the LED display screen 100 provided by the present application, the LED display screen 100 further includes a locking member 22 for fixing the display module 20 on the mounting bracket 11, the locking member 22 includes a locking button 221 and a rotating shaft 223 having two ends respectively connected to the locking button 221 and the display module 20, and the mounting bracket 11 is provided with a locking hole matched with the locking button 221. When installing display module 20, pass the lockhole with lock button 221 for lock button 221 is located the one side that display module 20 was kept away from to mounting bracket 11, and then, rotates lock button 221 through pivot 223, makes lock button 221 and lockhole dislocation, thereby makes display module 20 be connected with lock button 221 through pivot 223 locked to mounting bracket 11 on. When display module 20 is moved to needs, rotate lock button 221 and make lock button 221 and lockhole counterpoint, to the direction removal display module 20 of keeping away from mounting bracket 11, can make lock button 221 pass the lockhole and then break away from mounting bracket 11, then alright remove display module 20. The locking member 22 further includes a sleeve 222 fixed to the box 10 and sleeved on the rotating shaft 223, and a waterproof rubber ring 224 is disposed between the rotating shaft 223 and the sleeve 222 to prevent moisture from affecting the service life of the locking member 22.
Specifically, a plurality of locking members 22 are arranged on one display module 20, when the LED display screen 100 is used normally, each display module 20 is installed in the box body 10, and each locking member 22 locks the display module 20 on the installation frame 11, at this time, the display module 20 is close to the installation frame 11 and is limited by the box body 10. When the LED display screen 100 needs to be maintained, the locking members 22 on the display assembly 20 are unlocked, so that the display assembly 20 is in a movable state relative to the box 10, the display assembly 20 is pulled in a direction away from the box 10, a structure of the display assembly 20 except a portion connected to the limiting member 21 is separated from the box 10, the display assembly 20 is further moved in a direction away from the control assembly 30, the limiting member 21 connected to the display assembly 20 slides in the sliding groove 111, the control assembly 30 covered by the display assembly 20 is exposed, and the maintenance of the control assembly 30 is facilitated.
Optionally, in a further embodiment, the locking member 22 may also be a snap structure or a bolt structure, when the display module 20 is close to the mounting frame 11, the display module 20 is fixed to the mounting frame 11 through the snap structure or the bolt structure, and when the display module 20 needs to be moved, the display module 20 can be moved relative to the mounting frame 11 by loosening the snap structure or the bolt structure, so as to maintain the control module 30 or the display module 20.
Referring to fig. 2, as an embodiment of the LED display screen 100 provided in the present application, the control assembly 30 includes a control box 31 fixed on the box body 10 and a plurality of control box covers 32 covering the control box 31, and each control box cover 32 is disposed corresponding to each display assembly 20. The display component 20 covers the control box cover 32, the control box cover 32 is exposed by moving the display component 20, the control box cover 32 is detached, and maintenance of the control component 30 can be achieved. One control box cover 32 may be covered by two display modules 20 together, or may be covered by only one display module 20.
Specifically, control assembly 30 includes control box 31 and places power, HUB (multiport repeater) board, wire rod etc. in control box 31 in, thereby control box lid 32 lid is located and is protected power, HUB board, wire rod etc. on the control box 31, when maintaining control assembly 30, can need not whole control assembly 30 of pulling down, to control box lid 32 dismantle can.
Referring to fig. 2 and fig. 3, as an embodiment of the LED display screen 100 provided by the present application, the box 10 further includes a frame 12, an oblique beam 13 is disposed at a corner of the frame 12, and two ends of the oblique beam 13 are respectively fixed on two adjacent frames of the frame 12. The frame body 12 is an outer edge structural member of the box body 10, the frame body 12 determines the overall shape of the box body 10, the oblique beams 13 are arranged at the corners of the frame body 12, two ends of each oblique beam 13 are respectively abutted against the frame body 12, and a triangular structure is formed between two adjacent sides of the frame body 12 and the oblique beams 13, so that the overall structure of the frame body 12 is stable, the mounting frame 11 connected with the frame body 12 is stable in structure, and stable mounting of the display assembly 20 and the control assembly 30 is guaranteed.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.