Specific embodiment
To enable the above objects, features and advantages of the present invention more obvious understandable, below in conjunction with the accompanying drawings to the present invention
Specific embodiment be described in detail.Elaborate many details in order to fully understand this hair in the following description
It is bright.But the present invention can be implemented with being much different from other manner described here, and those skilled in the art can be not
Similar improvement is done in the case of running counter to intension of the present invention, therefore the present invention is not limited by following public specific embodiment.
In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", " on ", D score, "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outward ", " up time
The orientation or position relationship of the instruction such as pin ", " counterclockwise ", " axial direction ", " radial direction ", " circumference " be based on orientation shown in the drawings or
Position relationship, is for only for ease of the description present invention and simplifies description, must rather than the device or element for indicating or imply meaning
With specific orientation, with specific azimuth configuration and operation, therefore must be not considered as limiting the invention.
Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that indicating or implying relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or
Implicitly include at least one this feature.In the description of the invention, " multiple " is meant that at least two, such as two, three
It is individual etc., unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " fixation " etc.
Term should be interpreted broadly, for example, it may be fixedly connected, or be detachably connected, or integrally;Can be that machinery connects
Connect, or electrically connect;Can be joined directly together, it is also possible to be indirectly connected to by intermediary, can be in two elements
The connection in portion or two interaction relationships of element, unless otherwise clearly restriction.For one of ordinary skill in the art
For, can as the case may be understand above-mentioned term concrete meaning in the present invention.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score can be with
It is the first and second feature directly contacts, or the first and second features are by intermediary mediate contact.And, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature are directly over second feature or oblique upper, or be merely representative of
Fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be
One feature is immediately below second feature or obliquely downward, or is merely representative of fisrt feature level height less than second feature.
It should be noted that when element is referred to as " being fixed on " or " being arranged at " another element, it can be directly another
On one element or can also there is element placed in the middle.When an element is considered as " connection " another element, it can be with
It is directly to another element or may be simultaneously present centering elements.Term as used herein " vertical ", " level
", " on ", D score, "left", "right" and similar statement for illustrative purposes only, it is unique implementation to be not offered as
Mode.
Fig. 1 is referred to, it is the structural representation of cable accepting rack 90 in one embodiment, for example, a kind of cable is received
Frame 90 includes base 901, support body 902 and connection terminal 903.For example, base 901 is arranged on the floor under desk, for example,
Base 901 is arranged on the floor under the desk with cable exits, that is to say, that cable exits of the base 901 adjacent to floor
In order to guide cable to enter base 901.For example, support body 902 is connected with base 901, for the cable that will be introduced by base 901
Neatly intensively received, cable is left floor in an orderly manner and is led on desk.For example, connection terminal 903 is distinguished
It is connected with support body 902 and desk, to improve the weight capacity of support body 902.
As shown in Fig. 2 for example, base 901 include chassis 911 and mounting post 912, chassis 911 is connected with mounting post 912.
For example, chassis 911 is connected the cross section to form inverted T-shape with mounting post 912.For example, the central region on chassis 911 offer into
Line mouthful 913.For example, mounting post 912 is both-side opening hollow circuit cylinder, for example, mounting post 912 is hollow circuit cylinder, the hollow circuit cylinder
Both sides have opening so that a mounting post generally cylindrical shape, and the thickness of barrel is set according to actual conditions.For example, mounting post
912 are connected with chassis 911, and mounting post 912 is connected with incoming line 913.When using, chassis 911 is arranged on the floor under desk
On, it is preferred that chassis 911 is arranged on the floor under desk and neighbouring cable exits, it is preferred that the incoming line on chassis 911
913 cable exits for being located at base plate, it is so convenient all to collect through incoming line 913 cable, it is to avoid cable part is exposed at
So as to surprisingly be kicked by user in the scope of activities of user foot.
As shown in figure 3, for example, support body 902 includes plate body 921 and some elastic bands 922.For example, some elastic bands 922 are equal
It is even to be distributed on plate body 921.For example, plate body 921 is cuboid.For example, one end of elastic band 922 is fixedly connected with plate body 921,
The other end is detachably connected by VELCRO with plate body 921.For example, plate body 921 is set up in the top of mounting post 912, that is, plate
Body 921 is arranged on plate body 921 along away from the direction tried to get to the heart of a matter, so may be used located at the top of mounting post 912, some elastic bands 922
The cable being distributed on plate body 921 is held onto with using elastic band 922.
As shown in figure 4, for example, connection terminal 903 includes boards 931 and winding section 932.For example, boards 931 with
Away from the end connection tried to get to the heart of a matter, boards 931 offer mounting hole to plate body 921, for connecting desk.For example, winding section 932
Including the fixed part 933, bending section 934 and the freedom portion 935 that are sequentially connected, fixed part 933 is arranged at the side of boards 931,
Bending section 934 extends towards the side camber away from boards 931, and freedom portion 935 extends towards the side of boards 931, for example
, towards the roundabout extension in side of boards 931, and for example freedom portion 935 is square to surround towards the side of boards 931 for freedom portion 935
Formula extends, and line concentration space 936 is formed between bending section 934 and the side of freedom portion 935 and boards 931, so, is distributed in
Cable on plate body 921 accesses electrical appliance after can eventually passing through line concentration space 936.
Above-mentioned cable accepting rack 90, is arranged on the floor under desk, by connection terminal 903 by by chassis 911
Boards 931 are arranged on office table, and various cables enter mounting post 912 through incoming line 913, and cable is in elastic band 922
Constraint lower edge away from the direction tried to get to the heart of a matter it is in good order be arranged on plate body 921, cable pass through boards 931 and winding section
It is connected with electrical appliance such as computer behind line concentration space between 932, because winding section 932 is near desk, therefore by cable from doing
Floor under public table is accommodated on plate body 921 by elastic band 922 in good orderly, prevents user from kicking open cable and socket, electricity consumption
The connection of device etc., it is to avoid electrical appliance accident power-off is damaged, and improves the service life of electrical appliance.
It is that cable is all introduced into chassis by cable exits, for example, the middle part on chassis has arch portion, incoming line is opened in
Arch portion.For example, chassis is arched upward into the arch portion, to cause to have the space for housing cable between chassis and floor upwards.
For ease of threading, for example, mounting post is detachably connected with chassis.In the present embodiment, the incoming line on chassis is located at the cable of base plate
Outlet, so, arch portion causes there is the space for housing cable between chassis and floor, cable can be all drawn by cable exits
Enter chassis, improve take-up efficiency.
It is connection mounting post 912 and plate body 921, with reference to Fig. 1, Fig. 2 and Fig. 3, for example, the top of mounting post 912 offers
Resigning breach 914, plate body 921 is inserted in resigning breach 914.For example, plate body 921 passes through tight after being inserted in resigning breach 914
Firmware is fixed in mounting post 912.For example, the opening depth of resigning breach 914 is the 80% of the height of mounting post 912, to improve
After plate body 921 is inserted in resigning breach 914, the stress of plate body 921 and mounting post 912, it is to avoid breach is broken because load is larger.
As shown in figure 5, to set elastic band 922 with reasonable layout cable, for example, plate body 921 is cuboid.For example, plate
Body 921 has the affixed side 941 and free side 942 be arrangeding in parallel, and affixed side 941 is provided with some fixed bits 943, free side
942 are provided with some connection positions 944, and the fixing end of elastic band 922 is arranged at fixed bit 943, the free end of elastic band 922 and company
Position 944 is connect to be detachably connected.For example, the fixing end of elastic band 922 is fixed on fixed bit 943 by rivet, so can be
The free end of elastic band 922 and the connection of connection position 944 are unclamped during constraint cable, is being reconnected after cable is fettered, side
Just it is quick.
For example, connection position 944 is provided with clasp, free end and the clasp of elastic band 922 are detachably connected.For example, elastic
922 free end is provided with VELCRO, the free end of elastic band 922 is adhesively fixed after being arranged in clasp, for example, described elastic
Itself it is adhesively fixed after the free end of band is arranged in the clasp.In this way, in wiring, by the free end of elastic band 922 and company
Connect position 944 to unclamp, the free end of elastic band 922 reconnected with connection position 944 again after cable is placed on plate body 921,
So as to cable is fixed on plate body 921;Particularly, when there is more cable, distribution that can be successively is different elastic
922 corresponding temporary transient fixed cables of band, after elastic part is adjusted further according to installation scenarios after the fixation of all cables, with reasonably by line
Cable is all fixed on plate body 921.
As shown in fig. 6, the desk to adapt to different height, for example, plate body 921 includes the first set being slidably connected successively
Body 951, the second body 952 and the 3rd body 953;For example, the first body 951 is slidably connected with the second body 952, the second body
952 are slidably connected with the 3rd body 953.First body 951, the second body 952 and the 3rd body 953 are respectively arranged with elastic band
922.For example, between the first body 951, the second body 952 and the 3rd body 953 formed can linear telescopic plate body 921.Example
Such as, boards 931 are connected with the end of the 3rd body 953.In this way, chassis 911 is arranged on the floor under desk, by even
The boards 931 of connecting terminal 903 are arranged on office table, and various cables enter mounting post 912, cable through incoming line 913
Elastic band 922 constraint lower edge away from the direction tried to get to the heart of a matter it is in good order be arranged at the first body 951, the second body 952 and
On 3rd body 953, cable connects through behind the line concentration space boards 931 and winding section 932 with electrical appliance such as computer
Connect, the first body 951, the second body 952 and the 3rd body 953 are slidably connected successively, therefore adjustable connection terminal 903 is external
The distance on plate 931 and chassis 911 is with the distance according to the height of desk setting boards 931 and chassis 911.
To reduce the weight of cable accepting rack itself, for example, the first body 951, the second body 952 and the 3rd body 953
It is hollow cuboid.For example, the first body 951, the second body 952 and the 3rd body 953 are plastic part;And for example,
The cross-sectional area of the first body 951, the second body 952 and the 3rd body 953 is reduced successively.For example, the horizontal stroke of the second body 952
Area of section is the 95% of the cross-sectional area of the first body 951;And for example, the cross-sectional area of the 3rd body 953 is second set
The 90% of the cross-sectional area of body 952.For example, the cross-sectional area of the second body 952 is the cross-sectional area of the first body 951
80%;And for example, the cross-sectional area of the 3rd body 953 is the 60% of the cross-sectional area of the second body 952.It is so hollow
Cuboid and plastic part and cross-sectional area reduce successively, can effectively mitigate the cable accepting rack weight of itself,
Improve the weight limit that cable accepting rack bears cable.
It is flexible to realize, while adjustable retractable is highly, for example, the first body offers the first slot and connection first is inserted
Some first screws of groove, the second body is inserted in the first slot and wears the first screw by the first screw and is fixed on first
In slot, i.e. the second body is inserted in the first slot, and the second body wears the first screw by the first screw, also,
Second body is fixed in the first slot by the first screw.For example, some first screws along the first body length direction into
One row is set.For example, the second body offers some second screws of the second slot of the second slot and connection, the 3rd body is plugged
In the second slot and wear the second screw by the second screw to be fixed in the second slot, i.e. the 3rd body is inserted in second
In slot, and the 3rd body wears the second screw by the second screw, also, the 3rd body is fixed on by the second screw
In two slots.For example, length direction in a row setting of some second screws along the second body.So, by the first screw with
The cooperation of the first screw, the second body can be fixed on the suitable position of the first slot of the first body according to default requirement for height
Put, similarly, the 3rd body can be fixed on the correct position of the second slot of the second body according to default requirement for height,
It is achieved thereby that the technique effect of the flexible height of flexible and adjustment.
Refer to Fig. 7, it is the structural representation of cable accepting rack in another embodiment, for ease of by cable pass through into
Line mouthful 913 enters mounting post 912, for example, chassis 911 is provided with transparent window 961 adjacent to incoming line 913.For example, transparent window
961 have sector structure;For example, transparent window 961 is sector.For example, transparent window 961 has square structure;For example, transparent
Form 961 is square.In this way, under the auxiliary of transparent window 961, be arranged on the floor under desk by by chassis 911,
The boards 931 of connection terminal 903 are arranged on when on office table, various cables rapidly can be passed through into incoming line 913
Into mounting post 912, the efficiency of lead and wiring is improve.
It is appreciated that cable has a point thickness, when the species of cable is more and there is the larger cable of radius again, only lean on
Elastic band realizes that to the constraint of cable be far from being enough, that is to say, that elastic because the body weight of the larger cable of radius is larger
Band is difficult to bear larger weight loading.To solve this problem, realize arranging the indiscriminate constraint of cable of various radiuses,
As shown in figure 8, cable accepting rack also includes fixture 10.For example, fixture 10 is connected with plate body 921;And for example, the activity of fixture 10 is set
In or be fixedly installed on plate body 921.For example, fixture 10 is located between two elastic bands 922.Further to improve constraint effect, example
Such as, the quantity of fixture 10 has multiple.Specifically, referring to Fig. 9, it is the structural representation of fixture 10 in one embodiment, example
Such as, a kind of fixture 10 includes connecting seat 101 and cramping body 102, and connecting seat 101 is connected with cramping body 102.Connecting seat 101 is used for
It is fixed on plate body.Cramping body 102 is used to clamp the cable being placed in cramping body 102.For example, by connecting seat 101
Upper setting cramping body 102, clamping cable or other using cramping body 102 needs clamped object.
Figure 10 is referred to, it is the structural representation of connecting seat 101 in one embodiment, for example, connecting seat 101 includes seat
Body 201 and fastening bolt 202.Pedestal 201 and fastening bolt 202 on existing market are separate sale, in mounting body 201
Need to buy again during to plate body, but the model of fastening bolt 202 has various, it is easy to buy unmatched.To improve
Installation effectiveness, for example, fastening bolt 202 is embedded on pedestal 201, has fastening bolt 202 to cause that pedestal 201 is self-contained,
Without being pedestal 201 in supporting arrangement fastening bolt, seem very convenient in mounting body 201 to plate body, favorably
In the installation effectiveness for improving pedestal 201.
For ease of setting cramping body 102, for example, pedestal 201 is rectangular structure.For example, pedestal 201 has opposite peace
Dress face 203 and joint face (not shown), for example, pedestal 201 is in mounting groove 204 is provided with mounting surface 203, for example, mounting groove
204 central areas for being arranged at mounting surface 203.For example, the central area of mounting surface is the center of mounting surface and its area of surrounding
Domain, for example, mounting surface is for zhou duicheng tuxing and with two symmetry axis, the center of mounting surface is two friendships of symmetry axis
Point;And for example, symmetric figure centered on mounting surface.Region around the center of mounting surface, including shape is similar in appearance to mounting surface
The region of figure, such as its area for mounting surface area 10%~70%, the center of the central area of such as mounting surface with
The center of mounting surface coincides, and/or the area of the central area of mounting surface is the 20%~60% of the area of mounting surface, for example
50%.For example, mounting surface has rectangular configuration, the center of the central area of the rectangular configuration of mounting surface and the rectangle knot of mounting surface
The center of structure coincides, and the area of the central area of the rectangular configuration of mounting surface is the area of the rectangular configuration of mounting surface
20%~50%, such as 40%.Other central areas are by that analogy.For example, the cramping body 102 is arranged at the mounting groove
On 204.Used as the positioning region for setting the cramping body 102, also referred to as coordinate is the cramping body 102 to mounting groove 204
Installation settings provides region, so that easily cramping body 102 is arranged on pedestal 201, to realize holding function.For example, seat
Body 201 offers mounting groove 204, i.e. mounting groove wears whole pedestal, including wears mounting surface and joint face, and pedestal exists
Part between two faces, to form a groove, for connecting the connecting seat 101.
For ease of setting fastening bolt 202, for example, pedestal 201 offers the installing port for wearing mounting surface 203 and joint face
205, i.e. pedestal 201 offers installing port 205, and installing port wears whole pedestal, including wears mounting surface and joint face, and
Part of the pedestal between two faces, to form a port, for wearing fastening bolt;For example, installing port 205 closes on installation
Groove 204.To make pedestal 201 more stable and firm when being connected to plate body, in the present embodiment, the quantity of installing port 205 is four, right
Answer, the quantity of fastening bolt 202 is four, and each fastening bolt 202 is correspondingly arranged in an installing port 205.For example, four
Individual installing port 205 closes on mounting groove 204 and is uniformly distributed.In this way, passing through four fastening bolts 202 so that the stress of pedestal 201 is equal
It is even, it is more stable and firm during by pedestal 201 installed in plate body.
It is that fastening bolt 202 is limited on pedestal 201, for example, fastening bolt 202 includes tightening latch 206 and limited block
207.For example, tightening latch 206 is arranged in installing port 205.For example, tightening latch 206 has the screw thread body of rod 208 and is arranged on the screw thread body of rod
The pole cap 209 of 208 fixing end.For example, limited block 207 is movably set on the screw thread body of rod 208 away from pole cap 209, pole cap 209
Positioned at the side of mounting surface 203, limited block 207 is located at joint face side.For example, the external diameter of limited block 207 is more than installing port 205
Internal diameter, to prevent limited block 207 from passing through installing port 205.For example, the distance between limited block 207 and pole cap 209 are more than mounting surface
The distance between 203 and joint face so that there is the space of activity between the screw thread body of rod 208 and pedestal 201, and due to limited block
207 are movably set on the screw thread body of rod 208 away from pole cap 209, and the spiral shell that limited block 207 does not interfere with the screw thread body of rod 208 twists function,
Realize and fastening bolt 202 is limited on pedestal 201.
Figure 11 is referred to, it is the structural representation of cramping body 102 in one embodiment, for example, cramping body 102 includes work(
Energy part 301 and holder 302, holder 302 are connected with functor 301, and functor 301 is used to drive holder 302 to act, with
Clamping is placed on the cable in the grasping part 303 of holder 302.With reference to Fig. 9 and Fig. 8, in an embodiment, mounting groove 204
Shape and structure mutually agrees with the shape and structure of functor 301.For example, functor 301 is snapped in mounting groove 204 and by installing
Screw is set in groove 204 to be limited in mounting groove 204 with by functor 301.
Figure 12 is referred to, it is the cross section structure diagram of cramping body 102 in one embodiment, for example, functor 301 is wrapped
Housing 401 and functional unit 402 are included, in the insertion mounting groove 204 of housing 401.For example, the shape and structure and housing of mounting groove 204
401 shape and structure agrees with, for example, housing 401 is tight fit with mounting groove 204;And for example, housing 401 is with mounting groove 204
Interference fit.For example, functional unit 402 is arranged in housing 401.For example, functional unit 402 includes telescoping mechanism 403, consolidates
Fixed end 404 and free terminal 405, telescoping mechanism 403 and fixing terminal 404 are connected with housing 401 respectively, free terminal 405
It is arranged on the telescopic end of telescoping mechanism 403.Telescoping mechanism 403 is used to operationally drive free terminal 405 towards fixing end
The direction motion of son 404, i.e., drive free terminal 405 to be moved along the direction of X when the stress of telescoping mechanism 403 works, and is not stressing
When, drive free terminal 405 along the direction counter motion of X, also can be regarded as telescoping mechanism 403 and free terminal is driven when flexible
405 move back and forth in the direction of X.
In the present embodiment, telescoping mechanism is linear actuator for electric pushrod.It should be noted that electric pushrod can be recognized
Extend in one kind of configuration aspects to be electric rotating machine.For example, what electric pushrod was made up of motor push rod and control device mechanism
Straight line executing mechanism.And for example, telescoping mechanism is linear stepping motor.It should be noted that straight line stepping electricity is also known as linear stepping
Motor, is to produce rotation by with the pulse electromagnetic field interactions produced by stator by magnet rotor iron core, straight line stepping
Motor is linear movement convert rotational motion in motor internal.For example, telescoping mechanism is by power line external power supply power taking
Mode power taking;And for example, telescoping mechanism is powered by battery, so as to realize working on power.
To make holder 302 to clamp cable, for example, holder 302 includes fixed clip 406 and free folder 407, example
Such as, fixed clip 406 is connected with fixing terminal 404, and free folder 407 is connected with free terminal 405, and telescoping mechanism 403 works
When drive free folder 407 to be moved towards the direction of fixed clip 406, i.e., drive free folder 407 when telescoping mechanism 403 works
Moved along the direction of X, in this way, can clamp being placed on clamping when free folder 407 is moved towards the direction of fixed clip 406
Cable in the grasping part 303 of part 302.
Above-mentioned fixture 10, by setting cramping body 102 on connecting seat 101, cable, a side is clamped using cramping body 102
Face, connecting seat 101 includes pedestal 201 and fastening bolt 202, and eliminate needs to be further provided with fastening bolt 202 in assembling, and
Pedestal 201 has opposite mounting surface 203 and joint face, and pole cap 209 is located at the side of mounting surface 203, and limited block 207 is located at connection
Face side, the internal diameter of the external diameter more than installing port 205 of limited block 207 so that fastening bolt 202 does not fall off in pedestal 201;It is another
Aspect, by driving the direction motion of free folder 407 towards fixed clip 406 when telescoping mechanism 403 works, the process by
Moved in only free folder 407, when cable is clamped, cable is close to the static placement of fixed clip 406, makes fixed clip 406
And gap between free folder 407 is slow diminishes and clamp the cable between fixed clip 406 and free folder 407,
The stability of clamping is high, is conducive to the stabilization that cable is follow-up.
Because the telescopic end of telescoping mechanism 403 is only connected with free folder 407, driven freely when telescoping mechanism 403 works
Folder 407 moved along the direction of X during under the influence of frictional force free folder 407 deviation can occur unavoidably, in order to most
The deviation of the free folder 407 of reduction of limits, as shown in figure 12, cramping body 102 also includes positioning strip 410.For example, condensing tube tongs
Part 407 offers the first posting 421 and is provided with the first elastic component 422.For example, the first elastic component 422 is contained in first determining
The bottom of the first posting 421 is fixed in position frame 421, one end of the first elastic component 422, the other end of the first elastic component 422 with
One end connection of positioning strip 410.For example, fixed clip 406 offers the second posting 431 and is provided with the second elastic component 432.
The bottom of the second posting 431, the other end and the positioning strip 410 of the second elastic component 432 are fixed in one end of second elastic component 432
The other end connection.For example, the first elastic component 422 and the second elastic component 432 are spring.For example, the cross-sectional area of positioning strip 410
Less than the first posting 421 and the cross-sectional area of the second posting 431.For example, the length of positioning strip 410 is equal to the first posting
421 and second posting 431 depth sum.In this way, driving free folder 407 to be transported along the direction of X when telescoping mechanism 403 works
In dynamic process, under the guide effect of positioning strip 410, the first posting 421 and the second posting 431, free folder 407 will
Advanced according to set track, meanwhile, under the elastic reaction of the first elastic component 422 and the second elastic component 432, work as telescoping mechanism
403 when being stopped, and free folder 407 recovers to original position along the rightabout of X, thus reduce to greatest extent from
By the deviation of folder 407.
To improve clamping effect, for example, free folder 407 and the relative side of fixed clip 406 offer teeth 440.
For example, teeth 440 is triangular structure of right angle.Further, for the fixture for making the present embodiment is suitable for clamping default external diameter
Cylinder or class cylinder, for example, free folder 407 offers the first clamping breach 451, fixed clip 406 is offered
Second clamping breach 452, for example, the first clamping breach 451 has semicircular cross section, for example, the second clamping breach 452 has
There is semicircular cross section, for example, the first clamping clamping breach 452 of breach 451 and second forms the second grasping part of circle.
In this way, forming the second grasping part of circle due to the first clamping clamping breach 452 of breach 451 and second, clamping is suitable for pre-
If the cylinder of external diameter or class cylinder, effectively improve the practicality of fixture.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
Apply all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, the scope of this specification record is all considered to be.
Embodiment described above only expresses several embodiments of the invention, and its description is more specific and detailed, but simultaneously
Can not therefore be construed as limiting the scope of the patent.It should be pointed out that coming for one of ordinary skill in the art
Say, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.