A kind of electronic demonstration board with safeguard function
Technical field
The present invention relates to a kind of electronic demonstration board, more particularly to a kind of electronic demonstration board with safeguard function.
Background technology
Electronics is a kind of subatomic particle with negative electricity, and electronics belongs to lepton class, be the first generation Chinese wikipedia not
There is the first generation page, refer to the corresponding page of English wikipedia.The member of lepton family, with gravitation, electromagnetic force and weak core
Power and other particle interactions.Lepton is one of elementary particle of composition material, i.e., it cannot be broken down into smaller particle.
Electronics, with 1/2 spin, is a kind of fermion.Electronics can mutually be buried in oblivion with positron because of collision, during this, create a pair
Gamma-ray photon above.
Because when existing electronic demonstration board is shown out of doors to be publicized, surface easily because being stained with ash, causes to see not
Clear promotional content.
Therefore need a kind of electronic demonstration board with safeguard function that can be cleared up electronic demonstration board of research and development badly, come
Overcome the shortcoming that can not be cleared up electronic demonstration board in the prior art.
The content of the invention
(1) technical problem to be solved
The present invention in order to overcome the shortcoming that can not be cleared up electronic demonstration board in the prior art, the invention solves the problems that
Technical problem be to provide a kind of electronic demonstration board with safeguard function that can be cleared up electronic demonstration board.
(2) technical scheme
In order to solve the above-mentioned technical problem, the invention provides the electronic demonstration board that such a has safeguard function, bag
Installing plate, display screen, cylinder cleaning block, travel mechanism and rotating mechanism have been included, it is symmetrical on installing plate to be provided with installation
Hole, installing plate top is connected with display screen, and display screen top is provided with travel mechanism, cylindrical cleaning is connected with travel mechanism
Block, cylinder cleaning block is located at display screen left side, and travel mechanism is provided with rotating mechanism, and rotating mechanism connects with cylinder cleaning block
Connect.
Preferably, travel mechanism includes top board, first bearing seat, screw mandrel, the first bull stick, nut, the first guide pin bushing and
One guide rail, display screen top is connected with top board, and top board bottom is symmetrical to be connected with first bearing seat, is connected in first bearing seat
There is screw mandrel, screw mandrel passes through the first bearing seat on right side, and screw mandrel right-hand member is connected with the first bull stick, and slidingtype is connected with spiral shell on screw mandrel
Mother, nut coordinates with screw mandrel, and first bearing seat bottom is connected with the first guide rail, and slidingtype is connected with first and leads on the first guide rail
Set, the first guide pin bushing and the first guide rail coordinate, and nut bottom is connected with the first guide pin bushing top, are connected with the first guide pin bushing cylindrical clear
Reason block.
Preferably, rotating mechanism includes second bearing seat, the second bull stick, tooth bar, gear, connecting rod and connecting rod, first
Second bearing seat is connected with guide pin bushing, the second bull stick is connected with second bearing seat, the first guide rail bottom is connected with tooth bar, second
Bull stick bottom is connected with gear, and gear is located at tooth bar front side, and rack and pinion engagement is connected with connecting rod, connecting rod bottom on gear
It is connected with cylinder cleaning block.
Preferably, because also including screw rod, spill spin block, kelly, fixture block and fix bar, connecting rod bottom is connected with screw rod,
The outer surface of screw rod is provided with external screw thread, and the mode being connected through a screw thread on screw rod is connected with spill spin block, be provided with spill spin block with outward
The internal thread that screw thread coordinates, is cased with cylinder cleaning block on connecting rod, cylinder cleaning block bottom is symmetrical to be connected with fix bar,
Through hole is provided with fix bar, the left and right sides middle part rotary type of spill spin block is connected with kelly, and kelly top is respectively connected with card
Block, fixture block coordinates with through hole.
Preferably, placing box, baffle plate and rubber blanket are also included, the installing plate right side in left side is connected with placing box, places
Case top wall right end rotary type is connected with baffle plate, and rubber blanket is bonded with the first bull stick.
Preferably, the material of installing plate is stainless steel.
Preferably, the material of top board is high-quality steel, surface covering zinc layers.
Preferably, the material of placing box is Q235 steel.
Operation principle:When needing to clear up electronic demonstration board, user of service is to be capable of achieving to allow by travel mechanism
Cylinder cleaning block side-to-side movement on electronic demonstration board wipe the purpose of cleaning, by rotating mechanism, is capable of achieving to allow circle
Cylindricality clears up block on electronic demonstration board while side-to-side movement, and rotary type carries out wiping cleaning, reaches and electronic demonstration board is entered
Row clears up thoroughly purpose.
Because travel mechanism includes top board, first bearing seat, screw mandrel, the first bull stick, nut, the first guide pin bushing and first and leads
Rail, display screen top is connected with top board, and top board bottom is symmetrical to be connected with first bearing seat, and silk is connected with first bearing seat
Bar, screw mandrel passes through the first bearing seat on right side, and screw mandrel right-hand member is connected with the first bull stick, and slidingtype is connected with nut, spiral shell on screw mandrel
Female to coordinate with screw mandrel, first bearing seat bottom is connected with the first guide rail, and slidingtype is connected with the first guide pin bushing, first on the first guide rail
Guide pin bushing and the first guide rail coordinate, and nut bottom is connected with the first guide pin bushing top, and cylinder cleaning block is connected with the first guide pin bushing.Enter
During row cleaning, by rotating clockwise the first bull stick, the first bull stick drives screw mandrel to rotate clockwise to user of service, and then screw mandrel band
Dynamic nut is moved right by the first guide pin bushing, and the first guide pin bushing drives cylinder cleaning block to move right, and rotates counterclockwise first turn
Bar, the first bull stick drives screw mandrel to rotate counterclockwise, and then screw mandrel drives nut by the first guide pin bushing to left movement, the first guide pin bushing band
To left movement, so repeatedly, user of service passes through constantly to be realized along the bull stick of inverse alternate rotation first dynamic cylinder cleaning block
Constantly side-to-side movement carries out wiping cleaning on a display screen to allow cylinder to clear up block, and cleaning is completed, and display screen returns to original
Behind position, stop operating the first bull stick.
Because rotating mechanism includes second bearing seat, the second bull stick, tooth bar, gear, connecting rod and connecting rod, the first guide pin bushing
Second bearing seat is inside connected with, the second bull stick is connected with second bearing seat, the first guide rail bottom is connected with tooth bar, the second bull stick
Bottom is connected with gear, and gear is located at tooth bar front side, and rack and pinion engagement is connected with connecting rod, connecting rod bottom and circle on gear
Cylindricality cleaning block connection.When the first guide pin bushing is moved right, the first guide pin bushing drives the second bull stick and gear to move right, and gear is just
Can be rotated counterclockwise by tooth bar, and then gear driven connecting rod is rotated counterclockwise, connecting rod drives cylinder cleaning block to turn counterclockwise
Dynamic, when guide pin bushing is to left movement, the first guide pin bushing drives the second bull stick and gear to left movement, and gear will be clockwise by tooth bar
Rotate, and then gear driven connecting rod is rotated clockwise, connecting rod drives cylinder cleaning block to rotate clockwise, so repeatedly, cylinder
Shape cleaning block is constantly rotated clockwise or counterclockwise so that the scope that cylinder cleaning block is contacted to display screen is increased, and then
That clears up is cleaner.
Because also including screw rod, spill spin block, kelly, fixture block and fix bar, connecting rod bottom is connected with screw rod, outside screw rod
Surface is provided with external screw thread, and the mode being connected through a screw thread on screw rod is connected with spill spin block, is provided with spill spin block and coordinated with external screw thread
Internal thread, cylinder cleaning block is cased with connecting rod, cylinder cleaning block bottom is symmetrical to be connected with fix bar, in fix bar
Through hole is provided with, the left and right sides middle part rotary type of spill spin block is connected with kelly, and kelly top is respectively connected with fixture block, and fixture block is equal
Coordinate with through hole.User of service can remove to the cylinder cleaning block after cleaning and change new cylinder cleaning for convenience
Block, by the kelly for moving both sides so that fixture block is left in through hole, then by screwing out spill spin block, you can remove and be enclosed within roller
Cylinder cleaning block, when needing to change new cylinder cleaning block, the new cylinder on set on connecting rod of user of service is clear
After reason block, turn spill spin block moves up to fixture block on screw rod and is located in same horizontal line with the through hole in fix bar, breaks
The kelly on dynamic both sides so that fixture block is stuck in through hole, is fixed to new cylinder cleaning block.
Because also including placing box, baffle plate and rubber blanket, the installing plate right side in left side is connected with placing box, placing box top
Wall right-hand member rotary type is connected with baffle plate, and rubber blanket is bonded with the first bull stick.Because there is rubber blanket, can play anti-skidding
Effect, because there is placing box, being capable of convenient use personnel storage maintenance tool.
Because the material of installing plate is stainless steel, stainless steel corrosion resistance and acid resistance are strong, make the service life of equipment more
It is long.
Because the material of top board is high-quality steel, surface covering zinc layers so that this equipment is not perishable, and raising uses the longevity
Life.
Because the material of placing box is Q235 steel, Q235 steel hardness is high and does not allow yielding, makes the service life of equipment more
It is long.
(3) beneficial effect
The present invention reaches and is cleared up thoroughly mesh to electronic demonstration board by being provided with travel mechanism and rotating mechanism
, user of service can remove to the cylinder cleaning block after cleaning and change new cylinder cleaning block for convenience, pass through
Move the kelly on both sides so that fixture block is left in through hole, then by screwing out spill spin block, you can remove the cylinder being enclosed within roller
Cleaning block, moves up to fixture block on screw rod and is located in same horizontal line with the through hole in fix bar by turn spill spin block,
Move the kelly on both sides so that fixture block is stuck in through hole, new cylinder cleaning block can be fixed.
Brief description of the drawings
Fig. 1 is the first main structure diagram of the invention.
Fig. 2 is the main structure diagram of travel mechanism of the present invention.
Fig. 3 is the main structure diagram of rotating mechanism of the present invention.
Fig. 4 is the main structure diagram of cylinder cleaning block of the invention.
Fig. 5 is second main structure diagram of the invention.
Mark in accompanying drawing for:1- installing plates, 2- mounting holes, 3- display screens, 4- cylinder cleaning blocks, 5- travel mechanisms,
51- top boards, 52- first bearing seats, 53- screw mandrels, the bull sticks of 54- first, 55- nuts, the guide pin bushings of 56- first, the guide rails of 57- first, 6-
Rotating mechanism, 61- second bearing seats, the bull sticks of 62- second, 63- tooth bars, 64- gears, 65- connecting rods, 66- connecting rods, 7- screw rods,
8- spill spin blocks, 9- kellies, 10- fixture blocks, 11- fix bars, 12- through holes, 13- rubber blankets, 14- placing boxes, 15- baffle plates.
Specific embodiment
The present invention is further illustrated with reference to the accompanying drawings and examples.
Embodiment 1
A kind of electronic demonstration board with safeguard function, as Figure 1-5, includes installing plate 1, display screen 3, cylinder
Cleaning block 4, travel mechanism 5 and rotating mechanism 6, symmetrical on installing plate 1 to be provided with mounting hole 2, the top of installing plate 1 is connected with
Display screen 3, the top of display screen 3 is provided with travel mechanism 5, and cylinder cleaning block 4, cylinder cleaning block 4 are connected with travel mechanism 5
Positioned at the left side of display screen 3, travel mechanism 5 is provided with rotating mechanism 6, and rotating mechanism 6 is connected with cylinder cleaning block 4.
Embodiment 2
A kind of electronic demonstration board with safeguard function, as Figure 1-5, includes installing plate 1, display screen 3, cylinder
Cleaning block 4, travel mechanism 5 and rotating mechanism 6, symmetrical on installing plate 1 to be provided with mounting hole 2, the top of installing plate 1 is connected with
Display screen 3, the top of display screen 3 is provided with travel mechanism 5, and cylinder cleaning block 4, cylinder cleaning block 4 are connected with travel mechanism 5
Positioned at the left side of display screen 3, travel mechanism 5 is provided with rotating mechanism 6, and rotating mechanism 6 is connected with cylinder cleaning block 4.
Travel mechanism 5 includes top board 51, first bearing seat 52, screw mandrel 53, the first bull stick 54, nut 55, the first guide pin bushing
56 and first guide rail 57, the top of display screen 3 is connected with top board 51, and the bottom of top board 51 is symmetrical to be connected with first bearing seat 52,
Screw mandrel 53 is connected with first bearing seat 52, screw mandrel 53 passes through the first bearing seat 52 on right side, and the right-hand member of screw mandrel 53 is connected with first
Bull stick 54, slidingtype is connected with nut 55 on screw mandrel 53, and nut 55 coordinates with screw mandrel 53, and the bottom of first bearing seat 52 is connected with
One guide rail 57, slidingtype is connected with the first guide pin bushing 56 on the first guide rail 57, and the first guide pin bushing 56 coordinates with the first guide rail 57, nut 55
Bottom is connected with the top of the first guide pin bushing 56, and cylinder cleaning block 4 is connected with the first guide pin bushing 56.
Embodiment 3
A kind of electronic demonstration board with safeguard function, as Figure 1-5, includes installing plate 1, display screen 3, cylinder
Cleaning block 4, travel mechanism 5 and rotating mechanism 6, symmetrical on installing plate 1 to be provided with mounting hole 2, the top of installing plate 1 is connected with
Display screen 3, the top of display screen 3 is provided with travel mechanism 5, and cylinder cleaning block 4, cylinder cleaning block 4 are connected with travel mechanism 5
Positioned at the left side of display screen 3, travel mechanism 5 is provided with rotating mechanism 6, and rotating mechanism 6 is connected with cylinder cleaning block 4.
Travel mechanism 5 includes top board 51, first bearing seat 52, screw mandrel 53, the first bull stick 54, nut 55, the first guide pin bushing
56 and first guide rail 57, the top of display screen 3 is connected with top board 51, and the bottom of top board 51 is symmetrical to be connected with first bearing seat 52,
Screw mandrel 53 is connected with first bearing seat 52, screw mandrel 53 passes through the first bearing seat 52 on right side, and the right-hand member of screw mandrel 53 is connected with first
Bull stick 54, slidingtype is connected with nut 55 on screw mandrel 53, and nut 55 coordinates with screw mandrel 53, and the bottom of first bearing seat 52 is connected with
One guide rail 57, slidingtype is connected with the first guide pin bushing 56 on the first guide rail 57, and the first guide pin bushing 56 coordinates with the first guide rail 57, nut 55
Bottom is connected with the top of the first guide pin bushing 56, and cylinder cleaning block 4 is connected with the first guide pin bushing 56.
Rotating mechanism 6 includes second bearing seat 61, the second bull stick 62, tooth bar 63, gear 64, connecting rod 65 and connecting rod
66, second bearing seat 61 is connected with the first guide pin bushing 56, the second bull stick 62, the bottom of the first guide rail 57 are connected with second bearing seat 61
Portion is connected with tooth bar 63, and the bottom of the second bull stick 62 is connected with gear 64, and gear 64 is located at the front side of tooth bar 63, tooth bar 63 and gear 64
Engagement, is connected with connecting rod 65 on gear 64, the bottom of connecting rod 65 is connected with cylinder cleaning block 4.
Embodiment 4
A kind of electronic demonstration board with safeguard function, as Figure 1-5, includes installing plate 1, display screen 3, cylinder
Cleaning block 4, travel mechanism 5 and rotating mechanism 6, symmetrical on installing plate 1 to be provided with mounting hole 2, the top of installing plate 1 is connected with
Display screen 3, the top of display screen 3 is provided with travel mechanism 5, and cylinder cleaning block 4, cylinder cleaning block 4 are connected with travel mechanism 5
Positioned at the left side of display screen 3, travel mechanism 5 is provided with rotating mechanism 6, and rotating mechanism 6 is connected with cylinder cleaning block 4.
Travel mechanism 5 includes top board 51, first bearing seat 52, screw mandrel 53, the first bull stick 54, nut 55, the first guide pin bushing
56 and first guide rail 57, the top of display screen 3 is connected with top board 51, and the bottom of top board 51 is symmetrical to be connected with first bearing seat 52,
Screw mandrel 53 is connected with first bearing seat 52, screw mandrel 53 passes through the first bearing seat 52 on right side, and the right-hand member of screw mandrel 53 is connected with first
Bull stick 54, slidingtype is connected with nut 55 on screw mandrel 53, and nut 55 coordinates with screw mandrel 53, and the bottom of first bearing seat 52 is connected with
One guide rail 57, slidingtype is connected with the first guide pin bushing 56 on the first guide rail 57, and the first guide pin bushing 56 coordinates with the first guide rail 57, nut 55
Bottom is connected with the top of the first guide pin bushing 56, and cylinder cleaning block 4 is connected with the first guide pin bushing 56.
Rotating mechanism 6 includes second bearing seat 61, the second bull stick 62, tooth bar 63, gear 64, connecting rod 65 and connecting rod
66, second bearing seat 61 is connected with the first guide pin bushing 56, the second bull stick 62, the bottom of the first guide rail 57 are connected with second bearing seat 61
Portion is connected with tooth bar 63, and the bottom of the second bull stick 62 is connected with gear 64, and gear 64 is located at the front side of tooth bar 63, tooth bar 63 and gear 64
Engagement, is connected with connecting rod 65 on gear 64, the bottom of connecting rod 65 is connected with cylinder cleaning block 4.
Because also including screw rod 7, spill spin block 8, kelly 9, fixture block 10 and fix bar 11, the bottom of connecting rod 65 is connected with screw rod
7, the outer surface of screw rod 7 is provided with external screw thread, and the mode being connected through a screw thread on screw rod 7 is connected with spill spin block 8, is opened on spill spin block 8
There is the internal thread coordinated with external screw thread, cylinder cleaning block 4, the cylinder cleaning symmetrical company in the bottom of block 4 are cased with connecting rod 65
Fix bar 11 is connected to, through hole 12 is provided with fix bar 11, the left and right sides middle part rotary type of spill spin block 8 is connected with kelly 9,
The top of kelly 9 is respectively connected with fixture block 10, and fixture block 10 coordinates with through hole 12.
Placing box 14, baffle plate 15 and rubber blanket 13 are also included, the right side of installing plate 1 in left side is connected with placing box 14, puts
Put the top wall right end rotary type of case 14 and be connected with baffle plate 15, rubber blanket 13 is bonded with the first bull stick 54.
The material of installing plate 1 is stainless steel.
The material of top board 51 is high-quality steel, surface covering zinc layers.
The material of placing box 14 is Q235 steel.
Operation principle:When needing to clear up electronic demonstration board, user of service is capable of achieving to allow by travel mechanism 5
The cylinder cleaning side-to-side movement on electronic demonstration board of block 4 wipe the purpose of cleaning, by rotating mechanism 6, is capable of achieving to allow
On electronic demonstration board while side-to-side movement, rotary type carries out wiping cleaning to cylinder cleaning block 4, reaches to electronic demonstration board
Cleared up thoroughly purpose.
Because travel mechanism 5 includes top board 51, first bearing seat 52, screw mandrel 53, the first bull stick 54, nut 55, first
The guide rail 57 of guide pin bushing 56 and first, the top of display screen 3 is connected with top board 51, and the bottom of top board 51 is symmetrical to be connected with first bearing seat
52, it is connected with screw mandrel 53 in first bearing seat 52, through the first bearing seat 52 on right side, the right-hand member of screw mandrel 53 is connected with the to screw mandrel 53
One bull stick 54, slidingtype is connected with nut 55 on screw mandrel 53, and nut 55 coordinates with screw mandrel 53, and the bottom of first bearing seat 52 is connected with
First guide rail 57, slidingtype is connected with the first guide pin bushing 56 on the first guide rail 57, and the first guide pin bushing 56 coordinates with the first guide rail 57, nut
55 bottoms are connected with the top of the first guide pin bushing 56, and cylinder cleaning block 4 is connected with the first guide pin bushing 56.When being cleared up, user
By rotating clockwise the first bull stick 54, the first bull stick 54 drives screw mandrel 53 to rotate clockwise to member, and then screw mandrel 53 drives nut
55 are moved right by the first guide pin bushing 56, and the first guide pin bushing 56 drives cylinder cleaning block 4 to move right, and rotates counterclockwise first turn
Bar 54, the first bull stick 54 drives screw mandrel 53 to rotate counterclockwise, and then screw mandrel 53 drives nut 55 to be transported to the left by the first guide pin bushing 56
Dynamic, the first guide pin bushing 56 drives cylinder cleaning block 4 to left movement, and so repeatedly, user of service along inverse alternating by constantly turning
The first bull stick 54 is moved to realize that allowing cylinder to clear up the continuous side-to-side movement on display screen 3 of block 4 carries out wiping cleaning, clears up
Complete, and after display screen 3 returns to original position, stop operating the first bull stick 54.
Because rotating mechanism 6 includes second bearing seat 61, the second bull stick 62, tooth bar 63, gear 64, connecting rod 65 and connection
Bar 66, second bearing seat 61 is connected with the first guide pin bushing 56, and the second bull stick 62, the first guide rail 57 are connected with second bearing seat 61
Bottom is connected with tooth bar 63, and the bottom of the second bull stick 62 is connected with gear 64, and gear 64 is located at the front side of tooth bar 63, tooth bar 63 and gear
64 engagements, are connected with connecting rod 65 on gear 64, the bottom of connecting rod 65 is connected with cylinder cleaning block 4.When the first guide pin bushing 56 is transported to the right
When dynamic, the first guide pin bushing 56 drives the second bull stick 62 and gear 64 to move right, and gear 64 will be rotated counterclockwise by tooth bar 63,
And then the drivening rod 65 of gear 64 is rotated counterclockwise, connecting rod 65 drives cylinder cleaning block 4 to rotate counterclockwise, when guide pin bushing is transported to the left
When dynamic, the first guide pin bushing 56 drives the second bull stick 62 and gear 64 to left movement, and gear 64 will be rotated clockwise by tooth bar 63,
And then the drivening rod 65 of gear 64 is rotated clockwise, connecting rod 65 drives cylinder cleaning block 4 to rotate clockwise, so repeatedly, circle
Cylindricality cleaning block 4 is constantly rotated clockwise or counterclockwise so that the scope that cylinder cleaning block 4 is contacted to display screen 3 is increased,
And then cleaning is cleaner.
Because also including screw rod 7, spill spin block 8, kelly 9, fixture block 10 and fix bar 11, the bottom of connecting rod 65 is connected with screw rod
7, the outer surface of screw rod 7 is provided with external screw thread, and the mode being connected through a screw thread on screw rod 7 is connected with spill spin block 8, is opened on spill spin block 8
There is the internal thread coordinated with external screw thread, cylinder cleaning block 4, the cylinder cleaning symmetrical company in the bottom of block 4 are cased with connecting rod 65
Fix bar 11 is connected to, through hole 12 is provided with fix bar 11, the left and right sides middle part rotary type of spill spin block 8 is connected with kelly 9,
The top of kelly 9 is respectively connected with fixture block 10, and fixture block 10 coordinates with through hole 12.After user of service can be to cleaning for convenience
Cylinder cleaning block 4 is removed and changes new cylinder cleaning block 4, by the kelly 9 for moving both sides so that fixture block 10 leaves through hole
In 12, then by screwing out spill spin block 8, you can the cylinder cleaning block 4 being enclosed within roller is removed, when needing to change new cylinder
During cleaning block 4, after new on the set cylinder cleaning block 4 on the connecting rod 65 of user of service, turn spill spin block 8 on screw rod 7 to
On the through hole 12 that moves in fixture block 10 and fix bar 11 be located in same horizontal line, move the kelly 9 on both sides so that fixture block 10
It is stuck in through hole 12, new cylinder cleaning block 4 is fixed.
Because also including placing box 14, baffle plate 15 and rubber blanket 13, the right side of installing plate 1 in left side is connected with placing box
14, the top wall right end rotary type of placing box 14 is connected with baffle plate 15, and rubber blanket 13 is bonded with the first bull stick 54.Because there is rubber blanket
13 effect, can play anti-skidding effect, because there is placing box 14, being capable of convenient use personnel storage maintenance tool.
Because the material of installing plate 1 is stainless steel, stainless steel corrosion resistance and acid resistance are strong, make the service life of equipment more
It is long.
Because the material of top board 51 is high-quality steel, surface covering zinc layers so that this equipment is not perishable, and raising uses the longevity
Life.
Because the material of placing box 14 is Q235 steel, Q235 steel hardness is high and does not allow yielding, makes the service life of equipment
It is longer.
Embodiment described above only expresses the preferred embodiment of the present invention, and its description is more specific and detailed, but simultaneously
Therefore the limitation to the scope of the claims of the present invention can not be interpreted as.It should be pointed out that for one of ordinary skill in the art
For, without departing from the inventive concept of the premise, some deformations, improvement can also be made and substituted, these belong to this hair
Bright protection domain.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.