The content of the invention
In order to solve the above technical problems, the present invention provides a kind of pull-type operating mechanism of vehicle door of plug, the structure of the operating mechanism
It is simplified, and enabling efficiency can be improved.
The pull-type operating mechanism of vehicle door of plug that the present invention is provided, including by the shutter device of handle drives opening/closing door of vehicle, with
And car door described in locking is in the lock assembly of car body, the handle drives the lock assembly action to solve in the first working position
Lock or locking;In the second working position, the shutter device action is driven to be turned on and off the car door;Also include switching described
Handle is in the first working position, the switching part of the second working position.
The driving of this programme, shutter device and lock assembly is by handle drives, compared to background technology, it is clear that operation
Efficiency is improved, also, eliminates the door lock mechanism of special driving lock assembly, simplifies the operating mechanism of car door.
Alternatively, the lock assembly includes being installed on the first power transmission shaft of the car door, the handle connection described the
One power transmission shaft;The shutter device includes the second driving shaft for being installed on the car door;First power transmission shaft and described second
Power transmission shaft is vertically arranged;
The handle rotates in the first working position and drives first drive axis, to realize that the car door is unlocked or lock
Only;After unblock, the switching part can connect the handle and the second driving shaft, into second working position to drive
The second driving shaft, which is rotated, to be driven after opening and closing of opening the door, closing of the door, and the handle can be released with the second driving shaft to be connected
Connect.
Alternatively, first power transmission shaft and the second driving shaft, one is nested in another one, and the two sets with one heart
Put;
The switching part is located at the second driving shaft, and the switching part forms screens, and the handle is in the first working position
Rotate and after solution locks door, the handle is inserted into the connection second driving shaft in the screens, to drive described second
Drive axis.
As further technical scheme, the first power transmission shaft and the embedded setting of second driving shaft can then be reduced exposed
Part so that the outward appearance of car door is cleaner and tidier.Particular, it is important that because the two is nested and is arranged concentrically, handle can continue
Rotate and drive corresponding first power transmission shaft and/or second driving shaft to rotate, and when driving second driving shaft, not by first
The interference of power transmission shaft.Screens is formed on second driving shaft so that the switching of the first working position and the second working position is easier to reality
It is existing.
Alternatively, the circumferential clamping of the handle and first power transmission shaft, to drive the handle to rotate, and with described the
One power transmission shaft is in radially movable connection, so that after solution locks door, the handle can move radially and insert the screens
It is interior.
Alternatively, the lock assembly also includes overcoat and the first adapter sleeve fixed with first power transmission shaft, described
First adapter sleeve has the first radial opening;
The handle inserts first radial opening, and runs through connection first adapter sleeve and described by connecting shaft
Handle, realizes circumferential clamping;And first adapter sleeve or the handle are radially to prolong for the jack that the connecting shaft runs through
The elongated hole stretched, realizes radially movable connection.
Alternatively, the switching part is overcoat and the second adapter sleeve fixed with the second driving shaft, and described second connects
Female connector is provided with the second radial opening, and second radial opening forms the screens.
Alternatively, first power transmission shaft is embedded in the second driving shaft;The second driving shaft include epimere and
Hypomere;
Second adapter sleeve includes the upper collar of epimere insertion and trapping for hypomere insertion for the second driving shaft
Ring, the upper collar and the lower collar are equipped with the screens, under the handle connection exposes to the upper collar and be described
The part of first power transmission shaft between the collar;
Second adapter sleeve also includes connecting the upper collar and the connecting plate of the lower collar.
Alternatively, the handle is turned to after lucky solution locks door, and the handle contacts at the connecting plate, and positioned at energy
Enough insert the position of the screens.
Alternatively, the second driving shaft is provided with barrier portion, and the handle is turned to after lucky solution locks door, the handle
The barrier portion is contacted at, and positioned at the position for being inserted into the screens.
Alternatively, the lock assembly also includes lock pillar and lock, and the lock is fixed on the car body, and the lock is set
There is fore shaft;The lock pillar is fixed on the end of first power transmission shaft, and is set with the pivot center bias of first power transmission shaft
Put, the fore shaft is located on the rotation path of the lock pillar, during first drive axis, the lock pillar can be driven to fall into
Clamping is with car door described in locking in the fore shaft or departs from the fore shaft to unlock the car door.
Alternatively, when being additionally provided with closing of the door and locking, the handle lock of handle described in locking.
Brief description of the drawings
Fig. 1 is a kind of structural representation for filling in pull-type car door in the prior art;
Fig. 2 is the pull-type a kind of structural representation of specific embodiment of car door of plug provided by the present invention;
Fig. 3 is the structural representation of the first power transmission shaft in Fig. 2;
Fig. 4 is the structural representation of second driving shaft in Fig. 2;
Fig. 5-1 is the close-up schematic view at I positions in Fig. 2;
The schematic perspective view that Fig. 5-2 coordinates for the lock pillar below the first power transmission shaft in Fig. 2 with lock;
Fig. 6 is the top view of lock position in Fig. 5-1;
Fig. 7-1 is the close-up schematic view at II positions in Fig. 2;
Fig. 7-2 is Fig. 7-1 schematic perspective view;
Fig. 7-3 is the structural representation of the second adapter sleeve in Fig. 7-2;
Fig. 8 for Fig. 7-1 A-A to sectional view;
Fig. 9 is Fig. 7-1 top view;
Figure 10 is that handle rotates the position view after 90 degree from Fig. 9;
Figure 11 is the position view after handle in Figure 10 radially passage;
Figure 12 rotates counterclockwise 90 degree for handle in Figure 11, realizes the view of car door opening.
Fig. 1 description of reference numerals is as follows:
111 doorframes, 112 car doors, 12 lock iron, 131 first locking bars, 132 second locking bars, 14 handles, 15 power transmission shafts, on 161
Pulley, 162 lower sheaves, crank throw, 172 times crank throws, 181 upper rails, 182 lower guideways, 19 door lock mechanisms on 171
Fig. 2-9 description of reference numerals is as follows:
21 first rotary shafts, 211 lock pillars, 212 first adapter sleeves, 212 ' first radial openings, 213 connecting shafts, X rotary shafts
Line;
22 second driving shafts, 221 second adapter sleeves, the upper collars of 221a, 221b connecting plates, 221b ' barrier portions, 221c trap
Ring, 221 ' second radial openings;
23 car doors, 24 mounting seats;
25 handles, 251 elongated holes;
261 top sheaves, 262 lower sheaves, crank throw on 271,272 times crank throws, 281 upper rails, 282 lower guideways, 29 locks,
291 fore shafts;
Embodiment
In order that those skilled in the art more fully understands technical scheme, it is below in conjunction with the accompanying drawings and specific real
Applying example, the present invention is described in further detail.
Refer to Fig. 2-4, Fig. 2 is the pull-type a kind of structural representation of specific embodiment of car door of plug provided by the present invention;Fig. 3
For the structural representation of the first power transmission shaft 21 in Fig. 2;Fig. 4 is the structural representation of second driving shaft 22 in Fig. 2.
The operating mechanism of pull-type car door is filled in the embodiment, including the opening and closing group that car door 23 is opened and closed is driven by handle 25
Part, and locking car door 23 is in the lock assembly of car body.
The shutter device that can refer in background technology understanding, the present embodiment also includes two power transmission shafts and matching song
Turn, pulley, two second driving shafts 22 as shown in Figure 2, top sheave 261, lower sheave 262, upper crank throw 271, lower crank throw 272,
Upper crank throw 271 and lower crank throw 272 are fixed on the upper and lower ends of second driving shaft 22, and crank throw connection pulley, car body is located at car door 23
Upper-lower position has upper rail 281, lower guideway 282, can be located at doorframe.Power transmission shaft (including first following power transmission shafts 21) is
Car door 23 is installed on by mounting seat 24, is only capable of rotating around the axis of itself relative to car door 23.Two side handles 25, which are rotated, to be driven
When second driving shaft 22 is turned out, car door 23 can be displaced outwardly.
In the program, each handle 25 has two working positions, and in the first working position, handle 25 can drive lock assembly
Action is to unlock or locking;In the second working position, handle 25 can be turned on and off car door 23 with the action of driven opening/closing component;Also
The switching part of the first working position, the second working position is in including switching handle 25.I.e. the both driven opening/closing component of handle 25, also drives
Lock assembly.
Understand please continue to refer to Fig. 2 and with reference to Fig. 5-1~6, Fig. 5-1 is the close-up schematic view at I positions in Fig. 2;Figure
The schematic perspective view that 5-2 coordinates for the lock pillar below the first power transmission shaft in Fig. 2 with lock;Fig. 6 is the position of lock 29 in Fig. 5-1
Top view, and the rotation path of lock pillar 211 is shown.
Lock assembly includes being installed on the first power transmission shaft 21 and Fig. 4 of car door 23, the lock pillar 211 shown in 5 and is located at
The lock 29 of car body, lock 29 can be located at the doorframe of car body, and lock 29 is provided with the fore shaft 291 coordinated with lock pillar 211, lock pillar
211 are fixed on the upper and lower end of the first power transmission shaft 21.The first power transmission shaft 21 in Fig. 2 is embedded in second driving shaft 22, the first transmission
Axle 21 and the equal general vertical of second driving shaft 22 are set.I.e. in the program, the first power transmission shaft 21 is driven to rotate drive by handle 25
Lock pillar 211 is rotated into clamping locking or disengaging fore shaft 291 in fore shaft 291 and unlocked, the side linked with locking bar in background technology
Formula is significantly different.
Based on foregoing description, handle 25 needs that lock assembly energy driven opening/closing component again can be driven, this two kinds of components
There is sequencing in action, therefore need to set switching part to switch the working condition of handle 25, it is driven on appropriate opportunity
First power transmission shaft 21 and/or second driving shaft 22.In the present embodiment, switching part is is arranged at second driving shaft 22 and forms screens
The second adapter sleeve 221.
As shown in Fig. 7-1, Fig. 7-1 is the close-up schematic view at II positions in Fig. 2, and now car door 23, which is in, closes locking
State;Fig. 7-2 is Fig. 7-1 schematic perspective view;Fig. 7-3 is the structural representation of the second adapter sleeve in Fig. 7-2;Fig. 8 is Fig. 7-1
A-A to sectional view;Fig. 9 is Fig. 7-1 top view.
As shown in Fig. 2,7, second driving shaft 22 is fixed with the second adapter sleeve 221, and the first power transmission shaft 21 is fixed with the first company
Female connector 212, it is fixed to be realized by welding.Due to embedded setting, and handle 25 must can first drive the first transmission
Axle 21 is unlocked, then handle 25 needs to set up with the first embedded power transmission shaft 21 and is connected.To avoid the second driving shaft 22 of overcoat dry
Relate to handle 25 to be connected with the first embedded power transmission shaft 21, two in the present embodiment piece second driving shaft 22 is divided into upper and lower two sections
Set, the second adapter sleeve 221 includes upper collar 221a and lower collar 221c, and the upper collar 221a of connection, lower collar 221c
Connecting plate 221b, upper collar 221a, lower collar 221c and connecting plate 221b can be wholely set as shown in Fig. 7-3, can also
Split is welded and fixed.
The lower end of the epimere of second driving shaft 22 is inserted and fixed to collar 221a, and the upper end of hypomere is inserted and fixed to lower collar
221c, in this way, the first embedded power transmission shaft 21 can be integral type axis body, with through the epimere of second driving shaft 22, hypomere, or
Person, the first power transmission shaft 21 is also set (as shown in Fig. 7-1,7-2) for upper and lower section, and the epimere lower end of the first power transmission shaft 21 is exposed
In the epimere lower end of second driving shaft 22, the hypomere upper end of the first power transmission shaft 21 exposes to the hypomere upper end of second driving shaft 22, exposed
Position is both secured in the first adapter sleeve 212.
That is, in the connecting plate 221b of the second adapter sleeve 221 position, the first embedded power transmission shaft 2121 can be exposed one
Point, connected consequently facilitating being set up with handle 25.This kind connection sets more convenient and reliable, it will be understood that due to the second transmission
Axle 22 is thimble structure, is not provided with the second adapter sleeve 221, and opens up one directly over for opening that the first adapter sleeve 212 is inserted
Mouth is also feasible.
The present embodiment realizes the connection of the power transmission shaft 21 of handle 25 and first, the first transmission especially by the first adapter sleeve 212
Axle 21 is inserted in the first adapter sleeve 212 and fixed, and the first adapter sleeve 212 is provided with the first radial opening 212 ', as shown in figure 8, in text
Radially, axially with the radially, axially definition of power transmission shaft.One end of handle 25 is inserted in first radial opening 212 ', then leads to
Cross connecting shaft 213 and run through the first adapter sleeve 212 and handle 25, then the two is connected, and the axis of connecting shaft 213 is outside car door 23
Surface, then when pulling out handle 25, the side wall of 25 and first radial opening of handle 212 ' is contradicted, so as to drive the first power transmission shaft 21
It is turned out.Herein, handle 25 be inserted in the first radial opening 212 ' end be provided with radially extend elongated hole 251 (such as Fig. 7-
1st, shown in 7-2), then when handle 25 is rotated the first power transmission shaft 21 can be driven to rotate, and can be relative to the first power transmission shaft 21 radially
It is mobile.Similarly, elongated hole 251 can also be located at the first adapter sleeve 212.
The upper collar 221a and lower collar 221c of above-mentioned second adapter sleeve 221 are equipped with (such as Fig. 9 of the second radial opening 221 '
It is shown), the formation of the second radial opening 221 ' switches the screens of the working condition of handle 25, now the second adapter sleeve with screens
221 i.e. switching part.
When car door 23 is opened from closed mode, it is necessary first to unlock, handle 25 is turned out (i.e. downward up time in Fig. 9
Pin is rotated), drive the first power transmission shaft 21 fixed with the first adapter sleeve 212 to rotate, lock pillar 211 is fixed on the first power transmission shaft 21
End and with rotational axis x (as shown in Figure 6) eccentric setting of the first power transmission shaft 21, so, the first power transmission shaft 21 rotate when, lock
Post 211 can be rotated around the axis X of the first power transmission shaft 21, may be referred to show the rotation path of lock pillar 211, hand in figure understanding, Fig. 6
When handle 25 is turned out, drive lock pillar 211 to rotate clockwise, depart from the fore shaft 291 on lock 29, so as to unlock;During this,
Handle 25 is in the first working position, in the working position, when handle 25 is rotated, only drives the first power transmission shaft 21 to rotate, not with second
Power transmission shaft 22 links.
It is appreciated that according to the set location of the first power transmission shaft 21, the position of lock 29 need to be reasonably set, so that its shape
Into fore shaft 291 can be located at lock pillar 211 rotation path on.Obviously, in order to realize the function of locking, lock pillar 211 is located at lock
When in mouthfuls 291, lock pillar 211 should by the conflict power along the inward-outward direction of car door 23, to prevent car door 23 from being displaced outwardly, in Fig. 6,
The lower wall of fore shaft 291 can be arranged in parallel to car door surface..
Incorporated by reference to Fig. 9, understand referring again to Figure 10, Figure 10 is that handle 25 rotates the position view after 90 degree from Fig. 9, its
In, for ease of observation, handle 25 blackens display.
In the present embodiment, the position that the rotational angle of unblock is set into 90 degree, i.e. handle 25 from concordant car door 23 is outside
Rotate after 90 degree, lock pillar 211 departs from fore shaft 291 just.Certainly, the rotational angle of unblock is not restricted by, and can be 70 degree,
Can be 100 degree, but the design of angle is related to position, the position setting of lock pillar 211 of fore shaft 291 etc., considers locking
The angle is preferably chosen for 90 degree by effect and the convenience of processing, the present embodiment.
Please continue to refer to Figure 11,12 understand, Figure 11 be Figure 10 in handle 25 radially elapse after position view;Figure 12 is
Handle 25 rotates counterclockwise 90 degree in Figure 11, realizes the view that car door 23 is opened.
After unblock, handle 25 is moved radially, with close second driving shaft 22, and subsequently into the second adapter sleeve 221
In upper collar 221a, lower collar 221c the second radial opening 221 ', so as to be clamped by the second radial opening 221 ', such as Figure 11 institutes
Show and (may also be combined with Fig. 7-1,7-2 understanding, for ease of clamping, the axial dimension of the end of handle 25 is more than the size of handle body, that is, has
T-shaped end), now, handle 25 be further continued for along Figure 11 rotationally clockwise when, can drive second driving shaft 22 is synchronous to turn
Dynamic, the outer principle moved of driving car door 23 is identical with background technology, and the rotation direction of second driving shaft 22 of the both sides of car door 23 is on the contrary, song
Turn in opposite direction, cancelled out each other along the power of the longitudinal direction of car door 23, so as to drive car door 23 to move (only moving from inside to outside) lateral out.
During this, handle 25 is in the second working position, in fact, in the second working position, the first power transmission shaft 21 also concomitant rotation, only
Be due to that lock pillar 211 has been detached from fore shaft 291, the rotation of lock pillar 211 does not work, also not with other operative interventions.
In the present embodiment, when handle 25 self solves lock position and is rotated further 90 degree, then the outer position for moving to enabling just of car door 23
Put, as shown in figure 12.Now, handle 25 rotates 180 degree altogether, contacts at car door 23, then can will with teaching process personnel
Car door 23 is opened, and operating personnel can be along longitudinal direction side stroller door 23, so that car door 23 is pushed away into doorway completely.
At closing time, operating process and said process are just the opposite, and simply in each working position, rotation direction is completely opposite.
After being finished when closing the door, operating personnel can be released the connection with second driving shaft 22, the first transmission be operated alone with draw-out handle 25
Axle 21 is rotated, and realizes the locking of car door 23.
Seen from the above description, in the present embodiment, the driving of shutter device and lock assembly drives by handle 25, compares
In background technology, it is clear that operating efficiency is improved, also, the door lock mechanism of special driving lock assembly is eliminated, simplified
The operating mechanism of car door 23.
In addition, the driving member of lock assembly is set into the first power transmission shaft 21, and it is vertically arranged with second driving shaft 22,
Then handle 25 can drive corresponding first power transmission shaft 21 and/or second to pass by rotating when rotating in corresponding working state
Moving axis 22, operation is more simple, and lock assembly only includes two power transmission shafts, without setting two in such as background technology scheme
The first locking bar of group and the second locking bar, mechanism are further simplified.
It should be appreciated that the core of the present invention is that the actuator of lock assembly and shutter device no longer sets up separately, but by
Handle 25 drives, so as to simplify the internal structure of an organization, improves operating efficiency.Therefore, lock assembly is also not limited to be set to as described above
First power transmission shaft 21 and corresponding lock pillar 211 and lock 29, can still take the locking scheme in background technology.Such as,
Handle 25 may be configured to pull the first locking bar in background technology, realizes unblock, is then built again with second driving shaft 22
Control of opening the door is realized in vertical connection, certainly, and now handle 25 and second driving shaft 2222 need circumferential clamping, and again can be along leading
Draw direction movement.
Further, in such scheme, the first power transmission shaft 21 and the embedded setting of second driving shaft 22 can then be reduced exposed
Part so that the outward appearance of car door 23 is cleaner and tidier.Particular, it is important that because the two is nested and is arranged concentrically, handle 25 can be with
Persistently rotate and drive corresponding first power transmission shaft 21 and/or second driving shaft 22 to rotate, and in driving second driving shaft 22
When, not by the interference of the first power transmission shaft 21.
It can be readily appreciated that it is also feasible that second driving shaft 22, which is embedded in the first power transmission shaft 21, corresponding connecting jacket structure is anti-
If;Certainly, it is coaxially disposed if the two is not embedded, can also realizes that handle 25 drives as shutter device and lock assembly
The purpose of moving part, but now, to avoid during driving second driving shaft 22, by the interference of the first power transmission shaft 21, switching part need to include
Linkage structure, such as, switching part include connecting rod, after unblock, and handle 25 and switching part are set up and connect and drive second driving shaft 22
Rotate, connecting rod make it that the rotation of the power transmission shaft 21 of second driving shaft 22 and first is non-interference.
It should be noted that when the two nesting is set, handle 25 enters in the screens of the second radial opening 221 ', not
It is limited to move radially along above-mentioned elongated hole 251.It may be designed in, the adapter sleeve 212 of handle 25 and first is cut with scissors by connecting shaft 213
Connect, elongated hole 251 is not set, after unblock, handle 25 can be rotated predetermined angular down or upward, as shown in Fig. 7-1,7-2, from
And be caught in corresponding screens.It should be appreciated that take radial direction elongated hole 251 to design, handle 25 is in rotation process, level all the time,
Operation is more laborsaving.
In fact, handle 25 drives the first power transmission shaft 21 to rotate, and relative its can move radially to insert screens
Mode, however it is not limited to above-mentioned the first adapter sleeve 212 and the set-up mode of elongated hole 251, as long as the power transmission shaft 21 of handle 25 and first
Circumferential clamping, to drive the first power transmission shaft 21 to rotate, and with the first power transmission shaft 21 in radially movable connection, you can.Such as,
The both sides of the periphery of one power transmission shaft 21 are processed and chute, and chute is parallel with the axial section of the first power transmission shaft 21, the end of handle 25
Portion set two parallel to chute bifurcated, in two bifurcateds insertion chute, then the end of two bifurcateds fixed, then the end of handle 25
Circumferential clamping is realized with the first power transmission shaft 21, and can still be moved radially.It is apparent that the setting side of above-mentioned first adapter sleeve 212
Formula is more readily processed and assembled.
For the various embodiments described above, second driving shaft 22 can be provided with barrier portion 221b ', when handle 25 turns to lucky solution
Lock door after 23, handle 25 contacts at barrier portion 221b ', and corresponding to screens, i.e., positioned at the position for being inserted into screens, such as
Shown in Figure 10.It is appreciated that be arranged such, at the time of can reminding the operating personnel to unlock, so that operating personnel are opened in time
Door action, and the position is corresponding with screens, then according to the embodiment in figure, and operating personnel directly can push handle 25 to the
In two radial openings 221 ', without artificial observation so that whole unblock, door opening process are more smoothly;And reversely at closing time, when
When car door 23 is shut, the rotation of second driving shaft 22 is restricted, then operating personnel also understand that arrival switching only drives the
One power transmission shaft 21 is with the position of locking, so as to handle 25 be pulled out from the second radial opening 221 ', to drive the first power transmission shaft 21.
When set the second adapter sleeve 221 as described above when, barrier portion 221b ' can by the second adapter sleeve 221 connecting plate
221b is formed.As shown in figure 8, connecting plate 221b is sketch plate, with the riser for being approximately perpendicular to car door 23, the riser is barrier
Portion 221b ', after direction rotates counterclockwise 90 degree during handle 25 is according to Fig. 9, is contradicted with barrier portion 221b ' just.Barrier portion
221b ' obviously is also not necessarily limited to be arranged at the second adapter sleeve 221, regardless of whether setting the second adapter sleeve 221, barrier portion can also be straight
It is connected on the axis body of second driving shaft 22 and sets.
In above-described embodiment, also used the second adapter sleeve 221 as the switching part of setting screens, i.e. second adapter sleeve
221 have switch operating position concurrently, form barrier portion 221b ', the connection upper-lower section of second driving shaft 22 so that the first power transmission shaft 21 simultaneously
Can be exposed etc. function, the performance of a variety of functions is realized with a relatively simple structure.
Those skilled in the art, can be with it is to be understood that the handoff functionality of switching part by above-mentioned screens in addition to realizing
It is other structures, as long as can be when unlocking back pullout (BPO), handle 25 can be set up with second driving shaft 22 and be connected, and after closing the door
During locking, handle 25 can be disconnected with second driving shaft 22, you can.Such as, jack, hand are set on second driving shaft 22
The settable slotting axle of handle 25, handle 25 can be articulated with the first power transmission shaft 21, by taking Fig. 7-1,7-2 as an example, and handle 25 is turned out (axle
Line is vertical) 90 degree and after unlocking, handle 25 can rotate down predetermined angular, and slotting axle is inserted in jack just, then can drive the
Two power transmission shafts 22 are rotated.
It should be noted that in the present embodiment, after unblock, carrying out the position of opening door operation and being not construed as limiting, you can be
Just opening door operation is carried out during unblock, after can also unlocking, handle 25 is rotated further by predetermined angular, into opening door operation position.Ability
Field technique personnel can need design according to actual enabling, typically, opening door operation be carried out after unblock, be more beneficial for meeting
The rotation amplitude demand of enabling.
For the various embodiments described above, the holding tank extended longitudinally can also be set on car door 23, when car door 23 is closed
During locking, handle 25 can be inserted in accommodating groove, it is to avoid handle 25 is swung.Further, to prevent car door 23 is unexpected from opening, also
Handle lock (not shown) can be set, when car door 23 is closed and during locking, for by the locking of handle 25, surprisingly turning to prevent it
Dynamic and solution locks door 23.
It the above is only the preferred embodiment of the present invention, it is noted that come for those skilled in the art
Say, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should be regarded as
Protection scope of the present invention.