CN108542417A - X-ray collimator - Google Patents
X-ray collimator Download PDFInfo
- Publication number
- CN108542417A CN108542417A CN201710757655.7A CN201710757655A CN108542417A CN 108542417 A CN108542417 A CN 108542417A CN 201710757655 A CN201710757655 A CN 201710757655A CN 108542417 A CN108542417 A CN 108542417A
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- China
- Prior art keywords
- link block
- block
- suction unit
- baffle
- ray collimator
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
- A61B6/06—Diaphragms
Abstract
The invention discloses a kind of x-ray collimator, x-ray collimator includes blocking component and mounting bracket, blocks component and is at least one, blocking component includes：First link block and the second link block arranged side by side, at least one of the first link block and the second link block are slidably matched with mounting bracket；Flexible element, Flexible element are connected with the first link block and the second link block, and the Flexible element flexible deformation when the second link block is towards away from the movement of the direction of the first link block；Driving device, driving device is installed on mounting bracket, and is connected with the second link block；Suction pair, suction is to including the first suction unit and the second suction unit, and the first suction unit is installed on the first link block, and the second suction unit is installed on mounting bracket；First baffle, first baffle are connected with the first link block；Second baffle, second baffle are connected with the second link block.The x-ray collimator of the present invention adjusts height freedom and flexibility, and adjustable range is accurate.
Description
Technical field
The invention belongs to manufacture technology field of medical appliance, in particular to a kind of x-ray collimator.
Background technology
The cone-beam CT scan visual field decide it is observed that patient anatomy visual range, for reduce patient needed for hold
The dose of radiation received needs to scan different target regional choice using the different visuals field.In the related technology, collimator is by one
Or multiple plates are constituted, plate may include many different trepannings.It is newly exposed when using imaging pattern unlike previous use
Light time, it is necessary to X-ray beam be limited by using the trepanning of different shape or size, however, imaging device free space usually limits
The quantity of trepanning or the quantity of plate are made, therefore, visual field adjustable extent is limited.In addition, also a kind of in the related technology use four
Board-like collimator vertically movable and horizontally limits harness, and each plate drives by independent actuators, which allows various rays
Beam size and shape and relative position, but the use of multiple actuators can lead to the increase of cost and be carried to space requirement
The cost of height, processing and manufacture is higher, and installation steps are more, inconvenient to use.Therefore, there is also larger for above-mentioned four board-like collimators
Room for improvement.
Invention content
The present invention is directed at least solve one of the technical problems existing in the prior art.For this purpose, the present invention proposes that a kind of X is penetrated
Line collimator, the x-ray collimator can simply, neatly adjust the radiation areas of ray.
X-ray collimator according to the ... of the embodiment of the present invention includes blocking component and mounting bracket, described to block component at least
It it is one, the component that blocks includes：First link block and the second link block arranged side by side, first link block with it is described
At least one of second link block is slidably matched with the mounting bracket；Flexible element, the Flexible element and described first
Link block and second link block are connected, and in second link block towards when being moved away from the direction of first link block
The Flexible element flexible deformation；Driving device, the driving device is installed on the mounting bracket, and is connect with described second
Block is connected；Suction pair, to including the first suction unit and the second suction unit, first suction unit is installed on the suction
First link block, second suction unit are installed on the mounting bracket；First baffle, the first baffle with it is described
First link block is connected；Second baffle, the second baffle are connected with second link block.
X-ray collimator according to the ... of the embodiment of the present invention, by single driving device can drive simultaneously first baffle and
Second baffle realizes the stepless adjustable of two block baffles, can easily control the unlimited range for penetrating source window, and X-ray collimates
The structure of device is simple, and actual space needs are small, and electrical correlation component is few, and fault point is few, and reliability is high, cost-effective, should
It adjusts height freely, flexibly, the Clinical practice of its medical imaging can be extended, camera site and window size can freely be adjusted
Section, therefore, in the case where meeting clinical demand, reduces the dose of radiation that patient is subjected to.
X-ray collimator according to an embodiment of the invention, in initial position, first link block only supports described
Second link block；First is moved in the direction that the driving device drives second link block towards first link block
When setting, first suction unit is connected with second suction unit；Second link block is driven in the driving device
Towards when moving to the second position away from the direction of first link block, the Flexible element drives the first link block court to lean on
The direction movement of nearly second link block.
X-ray collimator according to an embodiment of the invention, the Flexible element include：Guide rod, the guide rod
It is fixedly connected through first link block and with second link block, first link block is matched with guide rod sliding
It closes；Spring, the spring are set in outside the guide rod, and connecting away from described second to first link block is stopped in one end
The side of block, the other end are fixed on one end of the guide rod.
X-ray collimator according to an embodiment of the invention, the Flexible element further include：Adjusting nut, it is described to lead
Be equipped with thread segment to described one end of bar, the adjusting nut is threadedly coupled with the thread segment, the spring it is described another
The adjusting nut is only supported at end.
X-ray collimator according to an embodiment of the invention, the mounting bracket are equipped with guide rail, first connection
At least one of block and second link block are slidably matched with the guide rail.
X-ray collimator according to an embodiment of the invention further includes：Sliding block, the sliding block are slided with the guide rail
Cooperation, and at least one of first link block and second link block are fixedly connected with the sliding block.
X-ray collimator according to an embodiment of the invention, first suction unit includes permanent magnet, and described second
Suction unit includes magnetic metallic plate.
X-ray collimator according to an embodiment of the invention, the driving device include driving motor and lead screw shaft, institute
It states lead screw shaft to connect with the motor shaft power coupling of the driving motor, the lead screw shaft forms leading screw with second link block
It is secondary.
X-ray collimator according to an embodiment of the invention further includes：Flange nut, the flange nut, which is fixed, to be connected
It is connected on connecting away from the side of first link block, the lead screw shaft and the flange nut screw thread for second link block
It connects.
X-ray collimator according to an embodiment of the invention, the mounting bracket include two orthogonal daughter boards,
The component that blocks is two, and component is blocked described in two and is mutually perpendicular to arrange, and is set up separately on two daughter boards.The present invention
X-ray collimator only need two groups of actuators can be achieved with window level direction and vertical direction size step-less adjustment and
The arbitrary variation of opposing rays source focal position.
The additional aspect and advantage of the present invention will be set forth in part in the description, and will partly become from the following description
Obviously, or practice through the invention is recognized.
Description of the drawings
The above-mentioned and/or additional aspect and advantage of the present invention will become in the description from combination following accompanying drawings to embodiment
Obviously and it is readily appreciated that, wherein：
Fig. 1 is the axonometric drawing of the x-ray collimator of the embodiment of the present invention；
Fig. 2 is the explosive decomposition figure of the x-ray collimator of the embodiment of the present invention；
Fig. 3-Fig. 8 is the operating process figure of the x-ray collimator of the embodiment of the present invention；
Fig. 9 be the x-ray collimator of the embodiment of the present invention in a kind of operating position when structural schematic diagram；
Figure 10 is the partial enlarged view at A in Fig. 9.
Reference numeral：
X-ray collimator 100,
Block component 10, the first link block 11, the second link block 12, Flexible element 13, guide rod 131, spring 132, tune
Save nut 133, driving device 14, driving motor 141, lead screw shaft 142, suction pair 15, the first suction unit 151, the second suction
Unit 152, first baffle 16, second baffle 17, flange nut 18,
Mounting bracket 20, guide plate 21, mounting plate 22, guide rail 23, sliding block 24,
Penetrate source window 200.
Specific implementation mode
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, and is only used for explaining the present invention, and is not considered as limiting the invention.
In the description of the present invention, it is to be understood that, term "center", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be orientation based on ... shown in the drawings or
Position relationship is merely for convenience of description of the present invention and simplification of the description, and does not indicate or imply the indicated device or element must
There must be specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.In addition, limit
There is the feature of " first ", " second " to can explicitly or implicitly include one or more this feature surely.The present invention's
In description, unless otherwise indicated, the meaning of " plurality " is two or more.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
Can also be electrical connection to be mechanical connection；It can be directly connected, can also indirectly connected through an intermediary, Ke Yishi
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
X-ray collimator 100 according to the ... of the embodiment of the present invention is described below with reference to Fig. 1-Figure 10, x-ray collimator 100 is used
The aperture of source window 200 is penetrated to adjust scan vision in adjusting, and it can be the various shapes such as round, rectangular, X to penetrate source window 200
The ray that radiographic source is sent out is mapped to region to be illuminated by penetrating source window 200.
As shown in Fig. 1-Figure 10, x-ray collimator 100 according to an embodiment of the invention includes blocking component 10 and peace
Fill holder 20.
Wherein, it blocks component 10 and is at least one, blocking component 10 includes：First link block 11, the second link block 12, bullet
Property unit 13, driving device 14, suction pair 15, first baffle 16, second baffle 17.
First link block 11 and the second link block 12 are arranged side by side, and the first link block 11 can be parallel with the second link block 12
It is arranged side by side in mounting bracket 20, mounting bracket is non-magnetic material, for example is aluminum alloy materials, the first link block 11 and second
At least one of link block 12 is slidably matched with mounting bracket 20, for example the first link block 11 is matched with the sliding of mounting bracket 20
It closes, the first link block 11 is equipped with the carriage coordinated with mounting bracket 20.
Flexible element 13 is connected with the first link block 11 and the second link block 12, and Flexible element 13 is in the second link block 12
13 flexible deformation of Flexible element when towards away from the movement of the direction of the first link block 11.
Driving device 14 is installed on mounting bracket 20, and driving device 14 is connected with the second link block 12, and driving device 14 can
For drive the second link block 12 do relative motion with mounting bracket 20, such as driving device 14 driving the second link block 12 towards by
The direction of nearly first link block 11 is moved, in this way, the second link block 12 can drive the first link block 11 jointly mobile.
Suction pair 15 includes the first suction unit 151 and the second suction unit 152, and the first suction unit 151 is installed on the
One link block 11, the second suction unit 152 are installed on mounting bracket 20, for example the first suction unit 151 is set to the first connection
For block 11 towards the side of mounting bracket 20, the second suction unit 152 is installed on the first link block of direction 11 of mounting bracket 20
Side, when the first link block 11 is slided along mounting bracket 20, the first suction unit 151 moves closer to the second suction unit 152,
There are magnetic suction zones within the scope of second suction unit, 152 surrounding certain distance, when the first suction unit 151 is slided along mounting bracket 20
When moving and entering the magnetic suction zone, mutual suction is generated between the first suction unit 151 and the second suction unit 152, when
When one link block 11 is moved to the first suction unit 151 and the second 152 face of suction unit, if not considering the work of Flexible element 13
With the first link block 11 is adsorbed to mounting bracket 20.
Such as first suction unit 151 may include permanent magnet, the first suction unit 151 can be leaned on set on the first link block 11
The side of nearly mounting bracket 20, the second suction unit 152 include magnetic metallic plate, and magnetic metallic plate may include iron, chromium, nickel etc.
Ingredient, the second suction unit 152 can be installed on the both sides of sliding rail, and permanent magnet can be arranged in the first link block 11 and magnetic gold
Belong to the corresponding position of plate, 152 adsorbable magnet of the second suction unit.When the first link block 11 is moved to the magnetic of magnetic metallic plate
When region, there are suction between permanent magnet and magnetic metallic plate.When permanent magnet is with magnetic metallic plate face, permanent magnet and magnetic gold
Belong to plate absorption, the frictional force that the pressure between permanent magnet and magnetic metallic plate generates, which can play, hinders the movement of the first link block 11
Effect.
First baffle 16 is connected with the first link block 11, for example first baffle 16 includes the first plate, the second plate, first baffle
16 the first plate can be mutually perpendicular to the second plate, and the first plate is equipped with slotted hole, can set on the first link block 11 there are two
Threaded hole, slotted hole of the screw on the first baffle 16 are simultaneously threadedly coupled, first gear with the threaded hole on the first link block 11
Second plate of plate 16 penetrates source window 200 for blocking, and sheet lead is covered on first baffle 16, to shield ray use, specifically, the
It is covered with sheet lead on second plate of one baffle 16.
Second baffle 17 is connected with the second link block 12, for example second baffle 17 includes the first plate, the second plate, second baffle
17 the first plate can be mutually perpendicular to the second plate, and the first plate is equipped with slotted hole, can set on the second link block 12 there are two
Threaded hole, slotted hole of the screw on the second baffle 17 are simultaneously threadedly coupled, second gear with the threaded hole on the second link block 12
Second plate of plate 17 penetrates source window 200 for blocking, and sheet lead is covered on second baffle 17, to shield ray use, specifically, the
It is covered with sheet lead on second plate of two baffles 17.
As shown in figure 3, in initial position, the first link block 11 only supports the second link block 12, the second link block 12 and drive
Dynamic device 14 is connected, and the first link block 11, the second link block 12 are connected to position of the driving device 14 far from the second suction unit 152
It sets, in initial position, first baffle 16 does not block with second baffle 17 penetrates source window 200, penetrates the radiation scope of source window 200
It is maximum.
As shown in figure 4, driving device 14 drives the second link block 12 to be moved towards the direction of the first link block 11, the second connection
Block 12 drives the first link block 11 to be moved together towards by the direction of close-range shot source window 200, and makes first baffle 16 and second baffle
17 gradually block and penetrate source window 200.
As shown in figure 5, driving device 14 continues that the second link block 12 is driven to move towards the direction of the first link block 11, at this time
First baffle 16 and second baffle 17 block completely penetrates source window 200.
As shown in fig. 6, driving device 14 continues that the second link block 12 is driven to move towards the direction of the first link block 11, driving
When dynamic device 14 drives the direction of the second link block 12 towards the first link block 11 to move to first position, the first suction unit 151
It is connected with the second suction unit 152, penetrates the left open of source window 200, this is the terminal of 14 positive movement of driving device.
It is understood that when first baffle 16 blocks and penetrates 200 right one side of something window of source window, the first suction unit 151
It can be adsorbed in the second suction unit 152, the resistance of driving unit increases at this time, but still the second link block 12 can be driven to move
It is dynamic.
As shown in fig. 6, driving device 14 starts to invert, second link block of the driving of driving device 14 12 is gradually towards away from first
The direction of link block 11 moves, and the second link block 12 drives second baffle 17 to be moved to away from the direction of the first link block 11, the
One link block 11 is remained stationary as, at this time the first link block due to the suction of the first suction unit 151 and the second suction unit 152
11 and second link block 12 relative displacement occurs so that 13 flexible deformation of Flexible element, the in the early stage elastic force of Flexible element 13
Less than the stiction of the first suction unit 151 and the second suction unit 152, the first link block 11 remains stationary as, in this way, first
Baffle 16 blocks the right side fraction for penetrating source window 200, and second baffle 17 is moved to adjust the unlimited range for penetrating source window 200,
The distance that second link block 12 is moved to the left determines the position and size that horizontal direction opens.
As shown in Figure 7 and Figure 8, when return, the second link block 12 continues to move downward, when the driving of driving device 14 second connects
Block 12 is connect towards when moving to the second position away from the direction of the first link block 11, Flexible element 13 drive the first link block 11 towards by
The direction of nearly second link block 12 moves.
That is, when the second link block 12 moves to the second position, the bullet of the flexible deformation generation of Flexible element 13
Property power reaches the stiction between the first suction unit 151 and the second suction unit 152, which can be driven the first company
It connects block 11 to move towards close to the direction of the second link block 12, the first link block 11 is quickly moved to the left, when it crosses the second suction
When the magnetic suction zone of unit 152, attraction disappears, and is closed under the pressure effect of Flexible element 13, and with the second link block 12
Together and initial position is returned to, first baffle 16, second baffle 17 are finally separate to penetrate source window 200, x-ray collimator 100
Return to initial position.
X-ray collimator 100 according to the ... of the embodiment of the present invention can drive first gear simultaneously by single driving device 14
Plate 16 and second baffle 17 realize the stepless adjustable of two block baffles, can easily control the horizontal direction for penetrating source window 200
Range is opened wide, and the structure of x-ray collimator 100 is simple, actual space needs are small, and electrical correlation component is few, fault point
Few, reliability is high, cost-effective, which freely, flexibly, can extend the Clinical practice of its medical imaging, to shooting position
It sets and can freely be adjusted with window size, therefore, in the case where meeting clinical demand, reduce the radiation that patient is subjected to
Dosage.
X-ray collimator 100 according to an embodiment of the invention, Flexible element 13 include：Guide rod 131, spring 132
With adjusting nut 133, the first link block 11 is equipped with through-hole, and guide rod 131 runs through the through-hole of the first link block 11, and guide rod
131 are fixedly connected with the second link block 12, and for x-ray collimator 100 in the transfer process of different location, through-hole can be used for first
Link block 11 is slidably matched with guide rod 131, plays the role of guiding.
Spring 132 is set in outside guide rod 131, and connecting away from second to the first link block 11 is stopped in 132 one end of spring
The side of block 12, the other end of spring 132 are fixed on one end of guide rod 131, and spring 132 can be by under the elastic deformation of itself
Elastic force come drive the first link block 11 move.
Specifically, the both ends of guide rod 131 can be thread segment, and centre is polished rod, one in two thread segments and the
Threaded hole on two link blocks 12 is threadedly coupled, another in two thread segments is threadedly coupled with adjusting nut 133, spring
132 are only against between the first link block 11 and adjusting nut 133, and adjusting nut 133 can be not only used for the shaft end limit of spring 132,
The precompressed amount of adjustment spring 132 is can also be used for, ensures first baffle 16 with second baffle 17 for penetrating can pass through for source window 200
When the maximum of region, the first link block 11 will not move, and when x-ray collimator 100 returns to initial position, and can drive the first connection
Block 11 moves.
As depicted in figs. 1 and 2, Flexible element 13 can be two, and through-hole can be two.
According to the x-ray collimator 100 of a preferred embodiment of the invention, mounting bracket 20 is equipped with guide rail 23, leads
Rail 23 is set to mounting bracket 20 towards the side of the first link block 11, the second link block 12, and guide rail 23 can be parallel to guide rod
131, at least one of the first link block 11 and the second link block 12 are slidably matched with guide rail 23, for example, the first link block 11
It is slidably matched with guide rail 23, the first link block 11 and the second link block 12 can be relatively moved along the extending direction of guide rail 23, be passed through
First link block 11 and the second link block 12 are moved along the extending direction of guide rail 23, to adjust first baffle 16, second gear
17 mutually matched position of plate, plays the role of blocking and penetrates source window 200.
Specifically, it blocks component 10 and may also include sliding block 24, sliding block 24 is slidably matched with guide rail 23, and the first link block 11
It is fixedly connected with sliding block 24 at least one of the second link block 12, for example the first link block 11 can be connected through a screw thread part
It is fixedly connected with sliding block 24, sliding block 24 can ride on guide rail 23, the side towards mounting bracket 20 of the first link block 11
Equipped with the groove coordinated with sliding block 24 so that the first link block 11 is ridden on by sliding block 24 on guide rail 23, certainly, sliding block 24
It may be provided on the second link block 12, the side towards mounting bracket 20 of the second link block 12 is recessed equipped with coordinating with sliding block 24
Slot so that the second link block 12 is ridden on by sliding block 24 on guide rail 23.
Optionally, magnetic metallic plate can be two, the both sides of two magnetic metallic plates distributions and guide rail 23, and two magnetic
Metallic plate is fixedly connected in mounting bracket 20, and permanent magnet is alternatively two, and permanent magnet can be circular piece, and two permanent magnets are equal
Mounted on the side towards mounting bracket 20 of the first link block 11, and positioned at the both sides of guide rail 23.
In some embodiments, the first link block 11 is slided by sliding block 24 along guide rail 23, and the first suction unit 151 is gradually
Close to the second suction unit 152, when the distance between the first suction unit 151 and the second suction unit 152 are less than suction
When range, the first suction unit 151 attracts each other with the second suction unit 152, while sliding block 24 and guide rail 23 are because of the first suction
Unit 151 and the suction of the second suction unit 152 and generate the frictional force for being parallel to guide rail 23 so that X-ray is accurate
Straight device 100 is in first position.
As depicted in figs. 1 and 2, driving device 14 may include driving motor 141 and lead screw shaft 142, and driving motor 141 is pacified
Loaded in mounting bracket 20, for example mounting bracket 20 has orthogonal guide plate 21 and mounting plate 22, the first link block 11
It is disposed side by side on guide plate 21 with the second link block 12, driving electricity is set to mounting plate 22, and mounting plate 22 is equipped with evacuation leading screw
The avoid holes of axis 142.Lead screw shaft 142 is connect with the motor shaft power coupling of driving motor 141, and driving motor 141 can drive silk
Thick stick axis 142 rotates, and the axis of lead screw shaft 142 is parallel to guide rail 23, and lead screw shaft 142 and the motor shaft of driving motor 141 can be set as
Integral structure, integral structure can save longitudinal size, it is of course also possible to which common motor and lead screw is selected to connect by shaft coupling
It connects, function is identical.
Lead screw shaft 142 and the second link block 12 form lead screw pair, and in one embodiment, lead screw shaft 142 is equipped with screw thread,
Second link block 12 can be equipped with threaded hole, and the second link block 12 is directly threadedly coupled with lead screw shaft 142；In another embodiment
In, driving device 14 can also include flange nut 18, flange nut 18 be fixedly connected on the second link block 12 deviate from first
The side of link block 11 can be equipped with threaded hole on flange nut 18, and flange nut 18 can be rotatably assorted with lead screw shaft 142, silk
Thick stick axis 142 is threadedly coupled with flange nut 18, and when adjusting x-ray collimator 100, flange nut 18 and the second link block 12 are total
With along 142 relative motion of lead screw shaft.
Second link block 12 can be moved axially by threaded hole along lead screw shaft 142, for example, needing to adjust X-ray collimation
When device 100, driving motor 141 drives lead screw shaft 142 to rotate, and the threaded hole cooperation in lead screw shaft 142 and the second link block 12 turns
Dynamic, the second link block 12 is moved axially along lead screw shaft 142, while the second link block 12 drives the first link block 11 along lead screw shaft
142 axial movements.
In a kind of optional embodiment, the second link block 12 is located at one that the first link block 11 deviates from driving motor 141
Side, flange nut 18 are connected with the second link block 12 away from the side of driving motor 141, and lead screw shaft 142 sequentially runs through first and connects
It connects block 11 and the second link block 12 and is threadedly coupled with flange nut 18, the first link block 11 and the second link block 12 are equipped with and supply
142 perforative avoid holes of lead screw shaft, the first link block 11 and 142 clearance fit of lead screw shaft, to prevent the first link block 11 from interfering
Leading screw secondary motion.First baffle 16, second baffle 17 are placed in the left side for penetrating source window 200, it can be achieved that X-ray is accurate when initial position
The adjusting of straight device 100.
In an alternative embodiment, the first link block 11 is located at the second link block 12 away from driving motor 141
Side, flange nut 18 are connected with the second link block 12 close to the side of driving motor 141, lead screw shaft 142 and flange nut 18
It is threadedly coupled and sequentially runs through the second link block 12 and the first link block 11, the first link block 11 and the second link block 12 are equipped with
For 142 perforative avoid holes of lead screw shaft, the first link block 11 and 142 clearance fit of lead screw shaft, to prevent the first link block 11 dry
Relate to leading screw secondary motion.First baffle 16, second baffle 17 are placed in the right side for penetrating source window 200 when initial position, can also realize that X is penetrated
The adjusting of line collimator 100.
To realize the step-less adjustment for penetrating source window 200 horizontal direction and vertical direction simultaneously, according to one reality of the present invention
The x-ray collimator 100 for applying example, as shown in Fig. 1-Figure 10, mounting bracket 20 includes two orthogonal daughter boards, each daughter board
Can include guide plate 21, mounting plate 22, guide plate 21 is mutually perpendicular to mounting plate 22, and guide plate 21 and mounting plate 22 are rigid
Property connect to be formed, optionally, driving motor 141 is mounted on mounting plate 22, and guide rail 23 is installed on guide plate 21, is blocked
Component 10 is two, and two block component 10 and are mutually perpendicular to arrange, and set up separately on two daughter boards, and two block component 10 and two
A daughter board corresponds, each block component 10 driving motor 141 be respectively mounted on a corresponding mounting plate 22, guide rail 23
It is installed on another guide plate 21, the same first baffle 16 for blocking component 10, second baffle 17 can be coplanar with, no
With blocking first baffle 16,17 stagger setting of second baffle of component 10, with prevent the different first baffles 16 for blocking component 10,
Second baffle 17 is interfered.One first baffle 16, the second baffle 17 for blocking component 10 blocks the first of component 10 with another
Baffle 16, second baffle 17 being mutually perpendicular to and can be used cooperatively, can essence by adjusting two location status for blocking component 10
True ground controllable register adjusts operation to penetrating the arbitrary variations of the radiation areas and opposing rays source focal position of source window 200
Simply, accurately.As shown in Figure 10, two first baffle 16, the second baffles 17 for blocking component 10, which cooperate, limits outgoing source
The radiation areas of window 200.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " illustrative examples ",
The description of " example ", " specific example " or " some examples " etc. means specific features described in conjunction with this embodiment or example, knot
Structure, material or feature are included at least one embodiment or example of the invention.In the present specification, to above-mentioned term
Schematic representation may not refer to the same embodiment or example.Moreover, specific features, structure, material or the spy of description
Point can be combined in any suitable manner in any one or more of the embodiments or examples.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that：Not
In the case of being detached from the principle of the present invention and objective a variety of change, modification, replacement and modification can be carried out to these embodiments, this
The range of invention is limited by claim and its equivalent.
Claims (10)
1. a kind of x-ray collimator, which is characterized in that including blocking component and mounting bracket, the component that blocks is at least one
A, the component that blocks includes：
First link block and the second link block arranged side by side, first link block connect in the block at least one with described second
It is a to be slidably matched with the mounting bracket；
Flexible element, the Flexible element are connected with first link block and second link block, and connect described second
Flexible element flexible deformation when connecing block towards away from the movement of the direction of first link block；
Driving device, the driving device is installed on the mounting bracket, and is connected with second link block；
Suction pair, for the suction to including the first suction unit and the second suction unit, first suction unit is installed on institute
The first link block is stated, second suction unit is installed on the mounting bracket；
First baffle, the first baffle are connected with first link block；
Second baffle, the second baffle are connected with second link block.
2. x-ray collimator according to claim 1, which is characterized in that in initial position, first link block stops
To second link block；
When the direction that the driving device drives second link block towards first link block moves to first position, institute
The first suction unit is stated with second suction unit to be connected；
Second link block is driven to move to the second position towards the direction away from first link block in the driving device
When, the Flexible element drives first link block to be moved towards close to the direction of second link block.
3. x-ray collimator according to claim 1, which is characterized in that the Flexible element includes：
Guide rod, the guide rod are fixedly connected through first link block and with second link block, and described first connects
Block is connect to be slidably matched with the guide rod；
Spring, the spring are set in outside the guide rod, and connecting away from described second to first link block is stopped in one end
The side of block is connect, the other end is fixed on one end of the guide rod.
4. x-ray collimator according to claim 3, which is characterized in that the Flexible element further includes：Adjusting nut,
Described one end of the guide rod is equipped with thread segment, and the adjusting nut is threadedly coupled with the thread segment, the institute of the spring
It states the other end and only supports the adjusting nut.
5. x-ray collimator according to claim 1, which is characterized in that the mounting bracket is equipped with guide rail, and described the
At least one of one link block and second link block are slidably matched with the guide rail.
6. x-ray collimator according to claim 5, which is characterized in that the component that blocks further includes：Sliding block, it is described
Sliding block is slidably matched with the guide rail, and at least one of first link block and second link block and the sliding block
It is fixedly connected.
7. x-ray collimator according to claim 1, which is characterized in that first suction unit includes permanent magnet, institute
It includes magnetic metallic plate to state the second suction unit.
8. x-ray collimator according to claim 1, which is characterized in that the driving device includes driving motor and silk
Thick stick axis, the lead screw shaft are connect with the motor shaft power coupling of the driving motor, the lead screw shaft and second link block
Form lead screw pair.
9. x-ray collimator according to claim 8, which is characterized in that further include：Flange nut, the flange nut
Be fixedly connected on second link block away from the side of first link block, the lead screw shaft and the flange nut spiral shell
Line connects.
10. x-ray collimator according to claim 1, which is characterized in that the mounting bracket is mutually perpendicular to including two
Daughter board, it is described block component be two, component is blocked described in two and is mutually perpendicular to arrange, and is set up separately in two daughter boards
On.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710757655.7A CN108542417B (en) | 2017-08-29 | 2017-08-29 | X-ray collimator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710757655.7A CN108542417B (en) | 2017-08-29 | 2017-08-29 | X-ray collimator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108542417A true CN108542417A (en) | 2018-09-18 |
| CN108542417B CN108542417B (en) | 2021-04-27 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710757655.7A Active CN108542417B (en) | 2017-08-29 | 2017-08-29 | X-ray collimator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114764069A (en) * | 2020-12-31 | 2022-07-19 | 同方威视技术股份有限公司 | Radiation inspection system |
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| Publication number | Publication date |
|---|---|
| CN108542417B (en) | 2021-04-27 |
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