CN2765634Y - Blade drive mechanism of multi-blade grating - Google Patents
Blade drive mechanism of multi-blade grating Download PDFInfo
- Publication number
- CN2765634Y CN2765634Y CN 200420103629 CN200420103629U CN2765634Y CN 2765634 Y CN2765634 Y CN 2765634Y CN 200420103629 CN200420103629 CN 200420103629 CN 200420103629 U CN200420103629 U CN 200420103629U CN 2765634 Y CN2765634 Y CN 2765634Y
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- blade
- nuts
- drive mechanism
- nut
- blades
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Abstract
The utility model relates to a drive mechanism of a multi-blade grating blade, which comprises blades and a blade driving mechanism, wherein the blade driving mechanism comprises nuts, screw rods and a motor assembly, wherein the nuts are fixed to the side surfaces of the blades; one end of each screw rod is matched with the nuts, and the other end of each screw rod is connected with the motor assembly. Because a group of screw rod nuts which can drive each blade are buried in grooves of a plurality of adjacent blades, the action spaces of the screw rods and the nuts are enlarged. Under the condition that the blades are very thin, the screw rods and the nuts do not need to be made very thin, and people can design according to a normal size. The difficulties of processing screw rods and nuts can be reduced. The reliability of a complete machine can be enhanced.
Description
Technical field
This utility model relates to multi-leaf optical grating.
Prior art
In the radiotherapy field, the target that medical circle is pursued always is the injury that reduces to greatest extent normal structure, strengthens the dosage of focus target area as much as possible.For realizing this target, using more method at present is to utilize automatic multi-leaf optical grating that tumor is fitted shape or transferred the intense irradiation treatment.For improving conformal degree, it is thin to require the blade of grating to do as much as possible, is to satisfy to transfer strong needs, and every blade must be equipped with an independently cover driving mechanism, as screw mandrel, nut, motors etc. are on arranging, screw mandrel must pass from blade, and screw mandrel must not with adjacent vanes Peng Tong Xiang because blade is extremely thin, so screw mandrel and nut must be done very carefully.But very thin screw mandrel and nut manufacturing be difficulty quite, because the diameter of screw mandrel is too little, and the rigidity of screw mandrel is on duty mutually, the reliability of complete machine is lower simultaneously.Restricted the development of grating to a certain extent.
Summary of the invention
To be solved in the utility model is the blade drive mechanism manufacturing difficulty of existing multi-leaf optical grating, the technical problem that reliability is relatively poor.
In order to solve above technical problem, the technical scheme that this utility model is taked is:
A kind of multi-leaf optical grating blade drive mechanism comprises blade, vane drive mechanism, it is characterized in that, described vane drive mechanism comprises nut, screw mandrel, group of motors, nut is fixed on the side of blade, and an end of screw mandrel cooperates with nut, and the other end connects with group of motors.
Described multi-leaf optical grating blade drive mechanism is characterized in that, described blade one side has groove.
A cocainine stem nut that links to each other with every blade is embedded in the groove of blades adjacent.
After having adopted technique scheme, be embedded in owing to a cocainine stem nut that will drive every blade in the groove of contiguous some blades, enlarged the activity space of screw mandrel and nut, under the very thin situation of blade, screw mandrel and nut do not need to do very carefully, can design according to normal size, reduce the difficulty that screw mandrel and nut add man-hour, the reliability of complete machine improves greatly.
Description of drawings
Fig. 1 is a perspective view of the present utility model.
Fig. 2 is an explosive view of the present utility model.
Fig. 3 is a multi-leaf optical grating vane group perspective view of utilizing this utility model fabrication techniques.(, having masked group of motors) for conveniently watching internal structure
The specific embodiment
As shown in Figure 1, 2, a kind of multi-leaf optical grating blade drive mechanism comprises blade and vane drive mechanism, and vane drive mechanism comprises nut, screw mandrel, group of motors, and nut is fixed on the side of blade, and an end of screw mandrel cooperates with nut, and the other end connects with group of motors.Described blade one side has groove.A cocainine stem nut that links to each other with every blade is embedded in the groove that closes on blade.
The implication of each sign is among the figure: 1 is that blade, 2 is that nut, 3 is that screw mandrel, 4 is group of motors.
Claims (3)
1, a kind of multi-leaf optical grating blade drive mechanism comprises blade and vane drive mechanism, it is characterized in that, described vane drive mechanism comprises nut, screw mandrel, group of motors, nut is fixed on the side of blade, and an end of screw mandrel cooperates with nut, and the other end connects with group of motors.
2, multi-leaf optical grating blade drive mechanism as claimed in claim 1 is characterized in that, described blade one side has groove.
3,, it is characterized in that being embedded in the groove of blades adjacent with the cocainine stem nut that every blade links to each other as claim 1 and 2 described multi-leaf optical grating blade drive mechanisms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420103629 CN2765634Y (en) | 2004-12-30 | 2004-12-30 | Blade drive mechanism of multi-blade grating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420103629 CN2765634Y (en) | 2004-12-30 | 2004-12-30 | Blade drive mechanism of multi-blade grating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2765634Y true CN2765634Y (en) | 2006-03-22 |
Family
ID=36606294
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420103629 Expired - Fee Related CN2765634Y (en) | 2004-12-30 | 2004-12-30 | Blade drive mechanism of multi-blade grating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2765634Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102652861A (en) * | 2011-03-03 | 2012-09-05 | 苏州雷泰医疗科技有限公司 | Optical grating device for radiotherapy equipment |
| CN102949204A (en) * | 2011-08-30 | 2013-03-06 | 苏州雷泰医疗科技有限公司 | Grating blade for radiotherapy equipment |
| CN104658629A (en) * | 2013-11-20 | 2015-05-27 | 上海联影医疗科技有限公司 | Blade driving structure and multi-blade collimator |
| CN106964079A (en) * | 2017-04-11 | 2017-07-21 | 宋继福 | It is a kind of to be used for the leafy collimator apparatus of tomography radiotherapy and dynamic intensity-modulated radiation therapy |
-
2004
- 2004-12-30 CN CN 200420103629 patent/CN2765634Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102652861A (en) * | 2011-03-03 | 2012-09-05 | 苏州雷泰医疗科技有限公司 | Optical grating device for radiotherapy equipment |
| CN102949204A (en) * | 2011-08-30 | 2013-03-06 | 苏州雷泰医疗科技有限公司 | Grating blade for radiotherapy equipment |
| CN104658629A (en) * | 2013-11-20 | 2015-05-27 | 上海联影医疗科技有限公司 | Blade driving structure and multi-blade collimator |
| CN106964079A (en) * | 2017-04-11 | 2017-07-21 | 宋继福 | It is a kind of to be used for the leafy collimator apparatus of tomography radiotherapy and dynamic intensity-modulated radiation therapy |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Li Zhen Document name: Deemed not to advise |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |