Rocking wheel structure and rocking wheel controller of cloud platform
阅读说明:本技术 一种摇轮结构及云台的摇轮控制器 (Rocking wheel structure and rocking wheel controller of cloud platform ) 是由 梁贵彬 于 2018-09-29 设计创作,主要内容包括:一种摇轮结构(2)及采用该摇轮结构(2)的云台的摇轮控制器,摇轮结构(2)包括基座(10)、摇轮组件(20)和阻尼调节组件(30);基座(10)设置有容纳腔(101),摇轮组件(20)和阻尼调节组件(30)部分地位于容纳腔(101)内;摇轮组件(20)包括摇轮(21)及与摇轮(21)同轴联动的转轴(22),阻尼调节组件(30)包括调节件(31)、弹性件(32)和抵顶件(33);调节件(31)通过弹性件(32)作用于抵顶件(33),使抵顶件(33)沿摇轮(21)转动的轴向方向抵持于转轴(22)上,调节件(31)通过调节弹性件(32)作用于抵顶件(33)的压力,以调节抵顶件(33)对转轴(22)的抵持力。该摇轮结构(2)可通过改变抵顶件(33)对转轴(22)的抵持力大小来实现使用者在操作摇轮(21)时的阻尼感调节,以提高操作体验。(A rocking wheel structure (2) and a rocking wheel controller of a pan-tilt head adopting the rocking wheel structure (2), wherein the rocking wheel structure (2) comprises a base (10), a rocking wheel assembly (20) and a damping adjusting assembly (30); the base (10) is provided with an accommodating cavity (101), and the rocking wheel assembly (20) and the damping adjusting assembly (30) are partially positioned in the accommodating cavity (101); the rocking wheel assembly (20) comprises a rocking wheel (21) and a rotating shaft (22) coaxially linked with the rocking wheel (21), and the damping adjusting assembly (30) comprises an adjusting piece (31), an elastic piece (32) and a propping piece (33); the adjusting piece (31) acts on the abutting piece (33) through the elastic piece (32), so that the abutting piece (33) abuts against the rotating shaft (22) along the axial direction of rotation of the rocking wheel (21), and the adjusting piece (31) adjusts the abutting force of the abutting piece (33) on the rotating shaft (22) through adjusting the pressure of the elastic piece (32) acting on the abutting piece (33). The rocking wheel structure (2) can realize damping sense adjustment of a user when the rocking wheel (21) is operated by changing the abutting force of the abutting piece (33) on the rotating shaft (22) so as to improve operation experience.)
1. A rocking wheel structure is characterized by comprising a base, a rocking wheel assembly and a damping adjusting assembly;
the base is provided with an accommodating cavity, and the rocking wheel assembly and the damping adjusting assembly are partially positioned in the accommodating cavity;
the damping adjusting assembly comprises an adjusting piece, an elastic piece and a propping piece;
the adjusting piece acts on the abutting piece through the elastic piece to enable the abutting piece to abut against the rotating shaft along the axial direction of rotation of the rocking wheel, and the adjusting piece adjusts abutting force of the abutting piece on the rotating shaft through adjusting pressure of the elastic piece acting on the abutting piece.
2. The rocking wheel structure of claim 1, wherein the adjustment member includes an adjustment shaft coaxial with the shaft and an adjustment knob that adjusts the adjustment shaft for movement on the axis of the shaft.
3. The rocking wheel structure of claim 2, wherein the rotating shaft is a hollow shaft, and the adjusting shaft passes through the elastic member, the abutting member, the rotating shaft and the rocking wheel in sequence and then is fixedly connected with the adjusting knob.
4. The rocking wheel structure of claim 2, wherein the base is provided with a slot-shaped hole, the adjusting knob partially passes through the slot-shaped hole to be connected with one end of the adjusting shaft, and the other end of the adjusting shaft sequentially passes through the elastic member and the abutting member.
5. The rocking wheel structure of claim 3 or 4, wherein one end of the adjusting shaft away from the adjusting knob is provided with a limiting portion, and two ends of the elastic member respectively abut against the limiting portion and the abutting member.
6. The rocking wheel structure of claim 5, wherein the stopper portion is provided with an annular guide groove in an axial direction of the adjustment shaft, and the elastic member is partially located in the annular guide groove.
7. The rocking wheel structure of claim 5, wherein the end surface of the rotating shaft contacting the abutting member partially extends towards the direction of the limiting portion to form a coaxial cylindrical mounting portion, the adjusting shaft is partially located in the cylindrical mounting portion, and the abutting member is wholly or partially sleeved on the cylindrical mounting portion.
8. The rocking wheel structure of claim 7, wherein the cylindrical mounting portion is square in radial cross-section.
9. The rocking wheel structure of claim 3 or 4, wherein the adjustment shaft is connected with the adjustment knob by means of a threaded coupling;
an axial counter bore is formed in one end, connected with the adjusting knob, of the adjusting shaft, and external threads arranged on the adjusting knob are meshed with internal threads arranged on the inner wall of the axial counter bore; or
The adjusting knob is provided with an axial through hole, and an external thread arranged at one end of the adjusting shaft connected with the adjusting knob is meshed with an internal thread arranged on the inner wall of the axial through hole.
10. The rocking wheel structure of claim 3 or 4, wherein the outer side of the rotating shaft is sleeved with at least one bearing, and the bearing is fixed in the inner cavity of the base.
11. The rocking wheel structure of claim 1, wherein the abutting member comprises a supporting seat and a pressing wheel, the pressing wheel is fixed outside the supporting seat through a wheel shaft, and the pressing wheel abuts against an end surface of the rotating shaft;
the supporting seat is provided with a through hole, and the supporting seat is sleeved on the rotating shaft or the adjusting piece through the through hole.
12. The rocking wheel structure of claim 11, wherein the pressure wheel includes, from inside to outside, a bearing and a rim, the rim including an inner rigid rim and an outer resilient rim.
13. The rocking wheel structure of claim 11, wherein the abutting member comprises at least two pressing wheels, each pressing wheel is fixed on the supporting seat through a corresponding wheel shaft, and the at least two pressing wheels are evenly distributed on the circumference of the supporting seat.
14. The rocking wheel structure of claim 1, wherein the rocking wheel is connected with the rotating shaft by a key or a flange, or the rocking wheel and the rotating shaft are integrally formed.
15. The rocking wheel controller of the pan-tilt is characterized by comprising a control main body and at least one rocking wheel structure connected with the control main body, wherein the rocking wheel structure comprises a base, a rocking wheel assembly and a damping adjusting assembly;
the base is provided with an accommodating cavity, and the rocking wheel assembly and the damping adjusting assembly are partially positioned in the accommodating cavity;
the damping adjusting assembly comprises an adjusting piece, an elastic piece and a propping piece;
the adjusting piece acts on the abutting piece through the elastic piece to enable the abutting piece to abut against the rotating shaft along the axial direction of rotation of the rocking wheel, and the adjusting piece adjusts abutting force of the abutting piece on the rotating shaft through adjusting pressure of the elastic piece acting on the abutting piece.
16. The rocker wheel controller of claim 15, wherein the adjustment member includes an adjustment shaft coaxial with the shaft and an adjustment knob that adjusts the adjustment shaft for movement on the axis of the shaft.
17. The rocking wheel controller of claim 16, wherein the rotating shaft is a hollow shaft, and the adjusting shaft passes through the elastic member, the abutting member, the rotating shaft and the rocking wheel in sequence and then is fixedly connected with the adjusting knob.
18. The rocking wheel controller of claim 16, wherein the base is provided with a slotted hole, the adjusting knob partially passes through the slotted hole to be connected with one end of the adjusting shaft, and the other end of the adjusting shaft sequentially passes through the elastic member and the abutting member.
19. The rocking wheel controller of claim 17 or 18, wherein one end of the adjusting shaft away from the adjusting knob is provided with a limiting portion, and two ends of the elastic member respectively abut against the limiting portion and the abutting member.
20. The rocking wheel controller of claim 19, wherein the stopper portion is provided with an annular guide groove in an axial direction of the adjustment shaft, and the elastic member is partially located in the annular guide groove.
21. The rocking wheel controller of claim 19, wherein the end surface of the rotating shaft contacting the abutting member partially extends in the direction of the limiting portion to form a coaxial cylindrical mounting portion, the adjusting shaft is partially located in the cylindrical mounting portion, and the abutting member is wholly or partially sleeved on the cylindrical mounting portion.
22. The rocking wheel control of claim 21, wherein the cylindrical mounting portion is square in radial cross-section.
23. The rocking wheel controller of claim 17 or 18, wherein the adjustment shaft is connected to the adjustment knob by a threaded coupling;
an axial counter bore is formed in one end, connected with the adjusting knob, of the adjusting shaft, and external threads arranged on the adjusting knob are meshed with internal threads arranged on the inner wall of the axial counter bore; or
The adjusting knob is provided with an axial through hole, and an external thread arranged at one end of the adjusting shaft connected with the adjusting knob is meshed with an internal thread arranged on the inner wall of the axial through hole.
24. The rocking wheel controller of claim 17 or 18, wherein the shaft is sleeved on the outside with at least one bearing, the bearing being fixed in the inner cavity of the base.
25. The rocking wheel controller of claim 15, wherein the urging member includes a support base and a pressing wheel, the pressing wheel is fixed outside the support base through a wheel shaft, and the pressing wheel abuts against an end surface of the rotating shaft;
the supporting seat is provided with a through hole, and the supporting seat is sleeved on the rotating shaft or the adjusting piece through the through hole.
26. The rocking wheel controller of claim 25, wherein the pressure wheel includes, from inside to outside, a bearing and a rim, the rim including an inner rigid rim and an outer resilient rim.
27. The rocking wheel controller of claim 25, wherein the abutment comprises at least two pressure rollers, each pressure roller being secured to the support base by a respective axle, the at least two pressure rollers being evenly distributed about the support base.
28. The rocking wheel controller of claim 15, wherein the rocking wheel is keyed or flanged to the shaft, or the rocking wheel is integrally formed with the shaft.
Technical Field
The embodiment of the invention belongs to the technical field of control equipment, and particularly relates to a rocking wheel structure and a rocking wheel controller of a holder adopting the rocking wheel structure.
Background
In professional photographic field, like video shooting in-process such as film, advertisement, professional photographer uses more often to shake wheel controller control triaxial cloud platform (like big jian RONIN 2) and catches the picture, and the photographer drives the pivot rotation of being connected with shaking the wheel through the wheel that shakes of operation on the wheel remote controller, shakes the rotation state information that will acquire the pivot in the wheel controller with pivot complex sensing device, and then generates the control signal to the triaxial cloud platform, realizes the control to the triaxial cloud platform.
The inventor discovers that in the process of realizing the technical scheme of the invention, in order to increase the operation hand feeling, a part for increasing the damping of the rocking wheel is arranged in the rocking wheel controller, the damping of the rocking wheel rotating of the rocking wheel controller is usually fixed, however, the hand feeling requirements of different users on the operation rocking wheel are inconsistent, and the problem that the rocking wheel of the existing rocking wheel controller cannot meet the use requirements of most users is caused.
Disclosure of Invention
Based on the above background art, embodiments of the present invention provide a rocking wheel structure, in which a rocking wheel is set to be a structure with adjustable damping, so as to solve the problem that the damping of the rocking wheel of the existing rocking wheel controller is not adjustable and cannot meet the operation hand feeling requirements of most users. Meanwhile, the invention also provides a rocking wheel controller which adopts the rocking wheel structure and is used for controlling the holder.
The embodiment of the invention adopts the following technical scheme.
On one hand, the rocking wheel structure provided by the embodiment of the invention comprises a base, a rocking wheel assembly and a damping adjusting assembly;
the base is provided with an accommodating cavity, and the rocking wheel assembly and the damping adjusting assembly are partially positioned in the accommodating cavity;
the damping adjusting assembly comprises an adjusting piece, an elastic piece and a propping piece;
the adjusting piece acts on the abutting piece through the elastic piece to enable the abutting piece to abut against the rotating shaft along the axial direction of rotation of the rocking wheel, and the adjusting piece adjusts abutting force of the abutting piece on the rotating shaft through adjusting pressure of the elastic piece acting on the abutting piece.
As an implementable solution, the adjusting member includes an adjusting shaft and an adjusting knob, the adjusting shaft is coaxial with the rotating shaft, and the adjusting knob adjusts the adjusting shaft to move on the axis of the rotating shaft.
In an implementable scheme, the rotating shaft is a hollow shaft, and the adjusting shaft penetrates through the elastic part, the abutting part, the rotating shaft and the rocking wheel in sequence and then is fixedly connected with the adjusting knob.
In another practical scheme, a slot-shaped hole is formed in the base, the adjusting knob partially penetrates through the slot-shaped hole to be connected with one end of the adjusting shaft, and the other end of the adjusting shaft sequentially penetrates through the elastic piece and the abutting piece.
As an implementable scheme, one end of the adjusting shaft, which is far away from the adjusting knob, is provided with a limiting part, and two ends of the elastic part respectively abut against the limiting part and the abutting part.
As an implementable solution, the limiting portion is provided with an annular guide groove along the axial direction of the adjusting shaft, and the elastic member is partially located in the annular guide groove.
As an implementable scheme, the end face of the rotating shaft, which is in contact with the abutting piece, partially extends towards the direction of the limiting part to form a coaxial cylindrical installation part, the adjusting shaft is partially positioned in the cylindrical installation part, and the abutting piece is wholly or partially sleeved on the cylindrical installation part.
As an implementable aspect, the radial cross section of the cylindrical mounting portion is square.
As an implementable scheme, the adjusting shaft is connected with the adjusting knob in a threaded connection mode;
an axial counter bore is formed in one end, connected with the adjusting knob, of the adjusting shaft, and external threads arranged on the adjusting knob are meshed with internal threads arranged on the inner wall of the axial counter bore; or
The adjusting knob is provided with an axial through hole, and an external thread arranged at one end of the adjusting shaft connected with the adjusting knob is meshed with an internal thread arranged on the inner wall of the axial through hole.
As an implementable scheme, at least one bearing is sleeved outside the rotating shaft and fixed in the inner cavity of the base.
As an implementable scheme, the abutting piece comprises a supporting seat and a pressing wheel, the pressing wheel is fixed on the outer side of the supporting seat through a wheel shaft, and the pressing wheel abuts against the end face of the rotating shaft;
the supporting seat is provided with a through hole, and the supporting seat is sleeved on the rotating shaft or the adjusting piece through the through hole.
As an implementable solution, the press wheel comprises, from inside to outside, a bearing and a rim, the rim comprising an inner rigid rim and an outer elastic rim.
As an implementable scheme, the abutting part comprises at least two pressing wheels, each pressing wheel is fixed on the supporting seat through a corresponding wheel shaft, and the at least two pressing wheels are uniformly distributed on the circumferential direction of the supporting seat.
As an implementable scheme, the rocking wheel and the rotating shaft are in key connection or flange connection, or the rocking wheel and the rotating shaft are integrally formed.
The damping adjusting structure arranged in the rocking wheel structure provided by the embodiment of the invention comprises an adjusting piece, an elastic piece and a propping piece, wherein the adjusting piece acts on one side of the propping piece through the elastic piece, the other side of the propping piece props against the rotating shaft along the axial direction of the rotation of the rocking wheel to form propping force on the rotating shaft, the propping force can enable the rotating shaft to generate dynamic friction force with the propping piece in the rotation process, the dynamic friction force determines the damping sense of the rocking wheel in rotation, the compression amount of the elastic piece is adjusted through the adjusting piece, the pressure of the elastic piece on the propping piece is changed, and further the propping force of the propping piece on the rotating shaft is changed, so that the dynamic friction force between the rotating shaft and the propping piece is changed, the damping sense adjustment of a user in the operation of the rocking wheel is realized, the operation hand feeling requirements of different users can be met, and the user experience is improved.
On the other hand, the rocking wheel controller of the pan/tilt head provided by the embodiment of the invention comprises a control main body and at least one rocking wheel structure connected with the control main body.
The rocking wheel remote controller of the cradle head provided by the embodiment of the invention adopts the rocking wheel structure, the damping sense of the rocking wheel structure is adjustable, the operation hand feeling requirements of different users can be met, and the cradle head can be better controlled by the user through the rocking wheel controller.
Drawings
In order to illustrate the embodiments of the present invention or the solutions in the prior art more clearly, a brief description will be given below of the drawings required for the description of the embodiments or the prior art, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is an overall structural view of a rocking wheel structure provided in an embodiment of the present invention;
FIG. 2 is a cross-sectional view of the rocking wheel arrangement provided in FIG. 1;
FIG. 3 is an exploded view of the rocking wheel arrangement provided in FIG. 1;
FIG. 4 is an enlarged view of A in FIG. 2;
FIG. 5 is an enlarged view of B in FIG. 2;
fig. 6 is an overall schematic view of the abutting member according to the embodiment of the invention;
FIG. 7 is a cross-sectional view of FIG. 6 taken along section C-C;
FIG. 8 is an overall structural view of another rocking wheel structure provided by the embodiment of the present invention;
FIG. 9 is a cross-sectional view of the rocking wheel arrangement provided in FIG. 8;
FIG. 10 is an enlarged view of D in FIG. 9;
FIG. 11 is a schematic structural diagram of a rocking wheel controller according to an embodiment of the present invention;
fig. 12 is another schematic structural diagram of a rocking wheel controller according to an embodiment of the present invention.
Description of reference numerals:
1 control body
2 rocking wheel structure
10 base
101 accommodating cavity
20 rocking wheel assembly
21 rocking wheel
211 first through hole
212 blind hole
22 rotating shaft
221 connection key
222 first screw
223 cylindrical mounting part
23 handle
231 rocker
232 sleeve
233 fixing part
234 third bearing
24 first bearing
30 damping adjustment assembly
31 adjusting piece
311 adjusting shaft
3111 limiting part
3112 annular guide groove
3113 axial counter bore
312 adjusting knob
3121 axial through hole
313 second screw
32 elastic member
33 abutting part
331 supporting seat
3311 second through hole
332 pinch roller
3321 second bearing
3322 wheel rim
3322A rigid rim
3322b elastic rim
Detailed Description
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs; the terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention; the terms "comprising" and "having," and any variations thereof, in the description and claims of this invention and the description of the above figures, are intended to cover non-exclusive inclusions.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the invention. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
The embodiment of the invention provides a rocking wheel structure, which comprises a base, a rocking wheel assembly and a damping adjusting assembly, wherein the rocking wheel assembly comprises a rocking wheel and a damping adjusting assembly;
the base is provided with an accommodating cavity, and the rocking wheel assembly and the damping adjusting assembly are partially positioned in the accommodating cavity;
the damping adjusting assembly comprises an adjusting piece, an elastic piece and a propping piece;
the adjusting piece acts on the abutting piece through the elastic piece to enable the abutting piece to abut against the rotating shaft along the axial direction of rotation of the rocking wheel, and the adjusting piece adjusts abutting force of the abutting piece on the rotating shaft through adjusting pressure of the elastic piece acting on the abutting piece.
The damping adjusting structure arranged in the rocking wheel structure provided by the embodiment of the invention comprises an adjusting piece, an elastic piece and a propping piece, wherein the adjusting piece acts on one side of the propping piece through the elastic piece, the other side of the propping piece props against the rotating shaft along the axial direction of the rotation of the rocking wheel to form propping force on the rotating shaft, the propping force can enable the rotating shaft to generate dynamic friction force with the propping piece in the rotation process, the dynamic friction force determines the damping sense of the rocking wheel in rotation, the compression amount of the elastic piece is adjusted through the adjusting piece, the pressure of the elastic piece on the propping piece is changed, and further the propping force of the propping piece on the rotating shaft is changed, so that the dynamic friction force between the rotating shaft and the propping piece is changed, the damping sense adjustment of a user in the operation of the rocking wheel is realized, the operation hand feeling requirements of different users can be met, and the user experience is improved.
Based on the rocking wheel structure, the rocking wheel controller of the holder provided by the embodiment of the invention comprises a control main body and at least one rocking wheel structure connected with the control main body.
The rocking wheel remote controller provided by the invention adopts the rocking wheel structure, the damping sense of the rocking wheel structure is adjustable, the operation hand feeling requirements of different users can be met, and the user can better control the holder through the rocking wheel controller.
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention.
Referring to fig. 1 to 3, an overall structure diagram, a cross-sectional view and an exploded view of an embodiment of a rocking wheel structure provided by the present invention are shown.
Specifically, the rocking wheel structure includes a
In the embodiment of the present invention, the
The rocking
Further, in the present embodiment, the adjusting member 31 includes an adjusting
In some embodiments, an internal thread may be disposed at one end of the adjusting
In other embodiments, an external thread may be disposed at one end of the adjusting
Further, in this embodiment, the rotating
Further, as shown in fig. 5, a limiting
Further, in this embodiment, as shown in fig. 2 or fig. 3, at least one
Further, in this embodiment, the end surface of the
Further, in this embodiment, as shown in fig. 6 and 7, the abutting
the supporting
As an alternative to this embodiment, the
As an alternative to this embodiment, the abutting
Further, in the present embodiment, referring back to fig. 2, the rocking
In a possible embodiment of this embodiment, referring to fig. 8 and fig. 9, unlike the solution in the above embodiment in which the adjusting
It should be noted that, in the embodiment shown in fig. 8 and 9, except that there are some differences between the arrangement position of the adjusting knob 312 and the relative position relationship between the rotating shaft 22 and the adjusting shaft 311 and the above-mentioned embodiment, the structures and the position relationships of other components can refer to the related description in the above-mentioned embodiment, and are not further described herein, and of course, the two structures provided in fig. 1 and 8, although there are some differences, substantially apply an axial abutting force to the rotating shaft 22, and thus belong to different embodiments of the same inventive concept; it should be noted that, as shown in fig. 10, the adjusting shaft 311 may also be provided with a limiting portion 3111 as in the above embodiment, and both ends of the elastic member 32 respectively abut against the limiting portion 3111 and the abutting member 33, but in this embodiment, the positions of the limiting portion 3111 and the adjusting knob 312 are different from the above embodiment, and it can be seen from fig. 10 that the limiting portion 3111 may be located at one end of the adjusting shaft 311 close to the adjusting knob 312, and of course, this difference is due to the adaptive adjustment performed by the difference of the matching manner of the rotating shaft 22 and the adjusting shaft 311, and still belongs to the overall inventive concept of the present invention.
Compared with the prior art, the rocking wheel 21 structure provided by the embodiment of the invention has at least the following advantages:
the
An embodiment of the present invention further provides a pan wheel controller of a pan/tilt head, where the pan/tilt head may be a single-axis pan/tilt head or a multi-axis pan/tilt head, referring to fig. 11 and 12, which are two schematic diagrams of the pan wheel controller provided in the embodiment of the present invention, respectively, and the pan wheel controller includes a control
According to the rocking wheel controller provided by the embodiment, with reference to fig. 1 to 7 or with reference to fig. 6 to 10, when the user rotates the rocking wheel 21 on the
The rocking wheel remote controller of the pan-tilt provided by the invention adopts the rocking wheel structure in the embodiment, and has the following advantages:
because the damping sense of the rocking wheel 21 of the rocking
The embodiment of the invention also provides a holder control system, which can comprise a holder and the rocking wheel controller of the holder in the above embodiment, in this embodiment, the holder can be a single-shaft holder or a multi-shaft holder, correspondingly, the rocking wheel controller of the holder is provided with one or more rocking wheel structures, and each rocking wheel structure controls one shaft of the holder.
It is to be understood that the above-described embodiments are merely illustrative of some, but not restrictive, of the broad invention, and that the appended drawings illustrate preferred embodiments of the invention without limiting its scope. This invention may be embodied in many different forms and, on the contrary, these embodiments are provided so that this disclosure will be thorough and complete. Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and modifications can be made, and equivalents may be substituted for elements thereof. All equivalent structures made by using the contents of the specification and the attached drawings of the invention can be directly or indirectly applied to other related technical fields, and are also within the protection scope of the patent of the invention.
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