CN111000582B - X-ray radiation protection device for joint lifting of bulb tube, screen frame and DR imaging plate - Google Patents
X-ray radiation protection device for joint lifting of bulb tube, screen frame and DR imaging plate Download PDFInfo
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- CN111000582B CN111000582B CN201911412388.5A CN201911412388A CN111000582B CN 111000582 B CN111000582 B CN 111000582B CN 201911412388 A CN201911412388 A CN 201911412388A CN 111000582 B CN111000582 B CN 111000582B
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- 238000003384 imaging method Methods 0.000 title claims abstract description 77
- 230000005855 radiation Effects 0.000 title claims abstract description 23
- 230000000670 limiting effect Effects 0.000 claims abstract description 47
- 230000001360 synchronised effect Effects 0.000 claims description 39
- 230000009347 mechanical transmission Effects 0.000 claims description 25
- 238000000333 X-ray scattering Methods 0.000 claims description 23
- 230000003028 elevating effect Effects 0.000 claims description 18
- 230000005540 biological transmission Effects 0.000 claims description 15
- 238000002601 radiography Methods 0.000 claims description 9
- 239000002775 capsule Substances 0.000 claims description 5
- 230000000903 blocking effect Effects 0.000 claims description 3
- 238000010521 absorption reaction Methods 0.000 claims 1
- 230000001681 protective effect Effects 0.000 abstract description 4
- 238000001514 detection method Methods 0.000 description 4
- 230000006378 damage Effects 0.000 description 3
- 208000019155 Radiation injury Diseases 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 210000002149 gonad Anatomy 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 210000004907 gland Anatomy 0.000 description 1
- 230000002710 gonadal effect Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/10—Safety means specially adapted therefor
- A61B6/107—Protection against radiation, e.g. shielding
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- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Optics & Photonics (AREA)
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- Heart & Thoracic Surgery (AREA)
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- General Health & Medical Sciences (AREA)
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- Apparatus For Radiation Diagnosis (AREA)
Abstract
The invention discloses an X-ray radiation protection device for the linkage lifting of a bulb tube, a screen frame and a DR imaging plate, which is arranged in a fixed shielding physical examination area and comprises: the device comprises a bulb area (1), an X-ray beam limiting device (6), a bulb tube lifting mechanism (2), a screen frame lifting mechanism (7), a DR imaging plate lifting mechanism (9) and a residual X-ray absorbing device. The bulb tube lifting mechanism 2, the screen frame lifting mechanism 7 and the DR imaging plate lifting mechanism 9 synchronously and in linkage and lifting, and the identity of the cross center positions of the bulb tube lifting mechanism 2, the screen frame lifting mechanism 7 and the DR imaging plate lifting mechanism is ensured. The bulb tube lifting mechanism (2) and the screen frame lifting mechanism (7) are arranged in the bulb tube region (1). The X-ray beam limiting device (6) is arranged at the upper part of the screen frame lifting mechanism (7), and the X-ray beam limiting channel (601) passes through the first window (4) and stretches into the physical examination area (8). And a DR imaging plate lifting mechanism (9) is arranged at the position of 180cm of the focal length of the bulb tube. The invention avoids X-ray reflection and does not need to arrange protective articles such as shawl and the like.
Description
Technical Field
The invention relates to the field of X-ray photography medical equipment, in particular to an X-ray radiation protection device with a bulb tube, a screen frame and a DR imaging plate which are lifted in a linkage way.
Background
The existing X-ray photography has the following defects due to the irrational and incomplete protection structure of the radiation protection method.
During X-ray photography, the main beam emitted during bulb tube exposure is naked, and a large amount of peripheral scattered rays exist, so that the increase of scattered X-rays in a physical examination area is large, and the radiation damage to the examined person caused by the scattered ray irradiation dose of the gland part, neck part and head part of the examined person in a non-examined body position is correspondingly increased. During X-ray photography, a large amount of scattered rays generated by the residual X-ray main beam penetrating through the DR imaging plate after the action of substances can be reflected back to the body position of the testee, so that secondary ray radiation damage is caused to the testee. None of the existing radiography is equipped with a stand-up adjustable protective screen.
Disclosure of Invention
In order to solve the technical problems, the invention provides an X-ray radiation protection device for the linkage lifting of a bulb tube, a screen frame and a DR imaging plate, which comprises: the device comprises a bulb area, an X-ray beam limiting device, a bulb lifting mechanism, a screen frame lifting mechanism, a physical examination area, a DR imaging plate lifting mechanism and a residual X-ray absorbing device; the linkage lifting device is arranged in a physical examination area which is fixedly shielded. The bulb tube lifting mechanism, the screen frame lifting mechanism and the DR imaging plate lifting mechanism synchronously and in linkage and lifting, and the identity of the cross center positions of the bulb tube lifting mechanism, the screen frame lifting mechanism and the DR imaging plate lifting mechanism is ensured. The bulb tube lifting mechanism and the screen frame lifting mechanism are arranged in the bulb tube area and are fixed on the first base together with the bulb tube area. The X-ray beam limiting device is arranged at the upper part of the screen frame lifting mechanism, and the X-ray beam limiting channel penetrates through the first window and stretches into the physical examination area. The bulb elevating mechanism is arranged at one side of the screen frame elevating mechanism. And a DR imaging plate lifting mechanism is arranged at the position of 180cm of the focal length of the bulb tube, and a DR imaging plate box assembly of the DR imaging plate lifting mechanism is connected with the residual X-ray absorbing device.
The screen frame elevating system includes: fixed transmission case, slip lift case, mechanical transmission subassembly II, lift direction subassembly II and coupling assembling II.
The mechanical transmission assembly II comprises: the synchronous motor II, the bearing seat II, the connecting sleeve II, the GQ screw rod II, the clamping block type GQ nut II and the self-aligning ball bearing with seat II; a bearing seat II is arranged on a synchronous motor II, the synchronous motor II is connected with a GQ screw rod II through a connecting sleeve II, a clamping block type GQ nut II is arranged on the GQ screw rod II, the GQ screw rod II is fixedly connected with a box body II through a self-aligning ball bearing II with a seat, and the synchronous motor II and the bearing seat II are fixedly connected with the box body II.
The lifting guide assembly II comprises: guide rail, guide roller and locating roller.
The connecting assembly II comprises: the device comprises a right-angle bayonet type connecting frame II, a fixing plate and a lifting lever; the connecting frame II is connected with the clamping block type GQ nut II; the fixed plate is respectively connected with the connecting frame II and the lifting lever fixed at the bottom of the sliding lifting box.
The fixed transmission case comprises a case body II and a side cover plate II; guide rails are respectively arranged on two sides of the box body II.
The upper part screen frame of the sliding lifting box is of a frame type structure, the lower part of the sliding lifting box is of a box type structure, and the sliding lifting box comprises: the top of the box body III is provided with a screen frame, and the front of the box body III is provided with a side cover plate IV; a window is arranged on the screen frame, and the X-ray beam limiting channel can pass through the window when assembled; guide rollers and positioning rollers are respectively arranged on the two inner sides of the box body III;
the sliding lifting box uses guide rollers and positioning rollers on two sides in the box body III, and is sleeved by fixing guide rails on two sides of the transmission box.
The left X-ray absorbing device is arranged at the back of the upper box body V of the DR imaging plate lifting mechanism; the residual X-ray absorbing device comprises a protective device and a residual X-ray scattering cabin.
The DR imaging plate lifting mechanism and the remaining X-ray scattering cabin are fixed on the second base.
DR imaging plate elevating system includes: the device comprises a transmission box body assembly, a mechanical transmission assembly, a lifting guide assembly III, a connecting assembly III and a DR imaging plate box assembly.
The transmission box body assembly comprises a box body IV, an upper cover is arranged at the top of the box body IV, and a side cover plate III is arranged in front of the box body IV.
The mechanical transmission assembly includes: the synchronous motor III, the bearing seat III, the connecting sleeve III, the GQ screw rod III, the clamping block type GQ nut III and the self-aligning ball bearing with seat III. The synchronous motor III is provided with a bearing seat III, the synchronous motor III is connected with a GQ screw rod III through a connecting sleeve III, the GQ screw rod III is connected with a clamping block type GQ nut III, the GQ screw rod III is fixed at the inner top of the box IV through a self-aligning ball bearing III with a seat, and the synchronous motor III and the bearing seat III are fixed at the inner bottom of the box IV.
The lifting guide assembly III comprises: the DR imaging plate box mounting plate, a guide post II, a guide bearing II, a guide post frame II and a guide post fixing plate; the bottom end of the guide post II is provided with a guide post fixing plate, the guide post II is fixedly connected with the guide post fixing plate through a guide bearing II on a guide post frame II, and the top end of the guide post II is fixedly provided with a DR imaging plate box mounting plate; the guide post frame II is fixed at the rear side of the mechanical transmission component at the upper part in the box body IV.
The connection assembly III includes: a right-angle bayonet type connecting frame III and a fixing frame; the connecting frame III is connected with the clamping block type GQ nut III, and the fixing frame is respectively connected and fixed with the connecting frame III and the guide pillar fixing plate.
The DR imaging panel box assembly includes: a case cover, a DR imaging plate and a case body V; the box body V is fixedly arranged on the DR imaging plate box mounting plate; a box cover is arranged in front of the box body V, and a DR imaging plate is arranged in the box body V.
The case cover is provided with a window I which has the same size as the X-ray induction range of the DR imaging plate; a window II is arranged on the back of the box body V; the size of the window II is larger than that of the window I, so that the main X-ray beam can enter the residual X-ray scattering cabin through the X-ray channel without blocking after photographing.
Further, the bulb region is a bottomless shield structure of bulb X-ray scattered radiation, is assembled, and comprises: a front end plate I, a left side plate I, a right side plate I, a rear end plate I, a top plate I and a first base; a front end plate I, a left side plate I, a right side plate I and a rear end plate I are sequentially arranged on the first base in a front-back left-right order, and then a top plate I is arranged at the top; the front end plate I is provided with a first window for lifting an X-ray beam limiting channel, the inner side of the first window is provided with a square pipe sleeve frame I, the right side plate I is provided with a lead plate shielding sliding door, and the sliding door is movably connected with the right side plate I through a hinge; the sliding door is provided with a shielding lead plate, and the periphery and the top in the bulb area are provided with the shielding lead plate.
The bulb elevating system includes: the device comprises a box body assembly, a mechanical transmission assembly I, a lifting guide assembly I, a connecting assembly I and a bulb tube assembly.
The box assembly includes: top cap, box I and side cap I; a top cover is arranged at the top of the box body I, and a side cover plate I is arranged in front of the box body I.
The mechanical transmission assembly I comprises: the synchronous motor I, the bearing seat I, the connecting sleeve I, the GQ screw rod I, the clamping block type GQ nut I and the self-aligning ball bearing I with the seat; a bearing seat I is arranged on the synchronous motor I, and the synchronous motor is connected with a GQ screw rod I through a connecting sleeve I; the GQ screw rod I is connected with a clamping block type GQ nut I, and then is fixedly connected with the top of the box body I through a self-aligning ball bearing I with a seat; the clamping block type GQ nut I is connected with the connecting frame I, and the synchronous motor I and the bearing seat I are fixed on the part of the box body.
The lift direction subassembly I includes: the guide column comprises a ball tube assembly, a mounting plate, a guide column I, a guide bearing I, a guide column frame I and a guide column fixing plate I; the guide post frame I is fixed at the inner upper part of the box body I, and the rear side of the mechanical transmission assembly I; guide bearings I are respectively arranged at two ends of the guide post frame I, a guide post I is arranged in the guide bearings I, and the guide post I is fixedly connected with a guide post fixing plate I at the bottom end; the top end of the guide pillar I is provided with a mounting plate, and the mounting plate is provided with a bulb assembly.
The coupling assembling I includes: a right-angle bayonet type connecting frame I and a fixing frame I; the connecting frame I is connected with the clamping block type GQ nut I; the fixing frame I is fixedly connected with the connecting frame I and the guide pillar fixing plate connecting component I respectively.
The bulb assembly includes: the device comprises a bracket mounting plate, a bulb bracket, a bulb, a light beam device and a bulb locking device; the bulb support is fixed on the mounting plate, the bulb support is fixedly provided with a bulb through the bulb locking device, and the bulb is provided with a light beam device; the bulb support is assembled and is cut along the horizontal center position; the bulb locking device includes: locking blocks and locking screws.
Further, the X-ray beam limiting device includes: an X-ray beam limiting channel, wherein a peripheral edge folding shielding plate I is arranged on the X-ray beam limiting channel; shielding lead plates are arranged in the X-ray beam limiting channel and on the shielding plate I; the X-ray beam limiting channel is a square or trapezoid X-ray channel for limiting the X-ray beam outlet direction and the beam outlet range of the bulb tube; the X-ray beam limiting channel is arranged in the shielding plate I in a sleeved mode and is fixedly connected with the screen frame, the square pipe sleeve frame I is arranged on the inner side of the first window, and Fang Guantao frames I are arranged on the periphery of the shielding plate I in a folded mode and on the inner side of the first window, so that scattering rays in the ball tube region are effectively reduced, and leakage and scattering equivalent of the physical examination region are effectively reduced.
Further, the guard includes: the size of the X-ray channel is the same as the size of a window II on the back surface of the DR imaging plate box body V, and a shielding plate is assembled on the X-ray channel; a window III is arranged on the shielding plate; the size of the X-ray channel is the same as the size of the window III of the shielding plate; shielding lead plates are arranged in the X-ray channel and on the shielding plate; the shielding plate covers square tube sleeve frame II, and square tube sleeve frame II locates the second window inboard, in the remaining X-ray scattering cabin was located to the shielding plate, shielding plate four sides hem and second window inboard set up Fang Guantao frame II can effectively reduce scattering line in the remaining X-ray scattering cabin and leak to the physical examination district and scatter equivalent.
Further, the remaining X-ray scattering capsule is a bottomless shield comprising: a front end plate II, a left side plate II, a right side plate II, a rear end plate II and a top plate II; the front end plate II is provided with a second window for lifting an X-ray channel; the inner side of the second window is provided with a photomask sleeve frame, and shielding lead plates are arranged at the periphery and the top of the rest X-ray scattering cabin; one end of an X-ray channel of the protection device is fixed on the back of the box body V, the other end of the X-ray channel penetrates through a second window on the front end plate II to extend into the rest X-ray scattering cabin, and then the shielding plate is fixedly connected with the X-ray channel.
Further, the distance from the X-ray beam limiting channel opening to the DR imaging plate box is 250mm-750mm.
Further, a platform inclined by 2-25 degrees is arranged at the standing position of the examined person in the examination area.
Further, the bulb of the bulb assembly is arranged vertically or inclined by 2 ° -25 °.
Further, the case V of the DR imaging panel case assembly is disposed vertically or obliquely by 2 DEG to 25 deg.
The beneficial effects of the invention are as follows: 1. the bulb tube area is a compartment which is used for shielding the bulb tube independently without a bottom, and the X-ray beam limiting device is a square or trapezoid ray channel which is arranged in front of a beam outlet of the bulb tube and used for limiting the X-ray direction and the beam outlet range. The bulb area and the X-ray beam limiting device are arranged, X-scattering rays in the length between the bulb focus and the X-ray channel opening are isolated and shielded within a focal length of 1.8 meters between the bulb focus and the DR imaging plate box, scattered radiation exposure dose of non-examined body positions of the examined person is reduced, and radiation injuries to gonad parts, neck parts and head parts of the examined person are reduced.
2. The vertical lifting device is arranged, protective articles such as a gonadal lead rubber apron, a shawl, a lead rubber neck sleeve, a lead rubber head sleeve and the like are not needed to be arranged after the vertical lifting device is arranged, and the radiation of non-detected body positions of detected persons is reduced by 94.4%.
3. The remaining X-ray absorbing device is provided as an X-ray shield mounted behind the DR imaging panel box, comprising a square or trapezoidal X-ray channel and a bottomless X-ray scattering chamber. The residual X-ray absorbing device is arranged for eliminating the main ray beam penetrating through the DR imaging plate and reducing the secondary radiation damage of the reflected scattered ray generated by the action of the residual main ray beam and the substance to the detected person.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention.
Fig. 2 is a top view of the present invention.
FIG. 3 is a schematic view of the structure of the bulb region of the present invention.
Fig. 4 is a schematic structural view of a bulb elevating mechanism according to the present invention.
Fig. 5 is a schematic structural view of a lifting mechanism of a screen frame according to the present invention.
FIG. 6 is a schematic view of the lifting mechanism of the DR imaging plate of the present invention.
Fig. 7 is a schematic view of the structure of the remaining X-ray scattering capsule according to the present invention.
FIG. 8 is a schematic diagram of a detection point according to the present invention.
Detailed Description
As shown in fig. 1 and 2, the bulb, the screen, and the DR imaging plate linkage lifting anti-X-ray radiography radiation apparatus includes: a bulb area 1, an X-ray beam limiting device 6, a bulb tube lifting mechanism 2, a screen lifting mechanism 7, a physical examination area 8, a DR imaging plate lifting mechanism 9 and a residual X-ray absorbing device. The radiation protection device with the linkage lifting function is arranged in the fixed shielding physical examination area 8. The bulb tube lifting mechanism 2, the screen frame lifting mechanism 7 and the DR imaging plate lifting mechanism 9 are controlled by the PLC to realize synchronous linkage lifting through three synchronous motors, and the identity of the cross center positions of the three synchronous motors is ensured. The bulb elevating mechanism 2 and the screen elevating mechanism 7 are arranged in the bulb area 1 and are fixed on the first base 14 together with the bulb area 1. The X-ray beam limiting device 6 is arranged at the upper part of the screen frame lifting mechanism 7, and the X-ray beam limiting channel 601 penetrates through the first window 4 and stretches into the physical examination area 8. The bulb elevating mechanism 2 is arranged at one side of the screen frame elevating mechanism 7. A DR imaging plate lifting mechanism 9 is arranged at the position of 180cm of the focal length of the bulb tube. The DR imaging plate box assembly 940 of the DR imaging plate elevating mechanism 9 is connected to the remaining X-ray absorbing apparatus.
The distance between the opening of the X-ray beam limiting channel 601 and the cover 942 of the DR imaging plate box assembly 940 on the DR imaging plate elevating mechanism 9 is 250mm-750mm, and the preferred embodiment employs a distance of 450mm.
The DR imaging plate lifting mechanism 9 is provided with a residual X-ray absorbing device at the back of the box V944. The remaining X-ray absorbing device comprises a shielding device 10 and a remaining X-ray scattering capsule 12.
The DR imaging plate elevating mechanism 9 and the remaining X-ray scattering chamber 12 are fixed in tandem on the second base 15.
The X-ray beam limiting device 6 includes: the X-ray beam limiting channel 601, and a shielding plate I602 is arranged on the X-ray beam limiting channel 601. A shielding lead plate 16 is provided in the X-ray beam limiting passage 601 and on the shielding plate i 602. The X-ray beam limiting channel 601 is a square or trapezoidal X-ray channel that limits the X-ray beam exiting direction and the beam exiting range of the bulb tube. This embodiment is implemented using square channels. The shielding plate I602 is sleeved on the X-ray beam limiting channel 601 and is connected with the screen frame 742. The four sides of the shielding plate I602 are folded to cover the square pipe sleeve frame I603, and meanwhile, the limiting effect is achieved. Square tube sleeve frames I603 are fixedly arranged on front end plates I101 on two sides of the first window 4, and together reduce the effect of scattering in the ball tube region on leaking and scattering to the physical examination region, and the square tube sleeve frames I603 are arranged on the inner side of the first window 4 of the ball tube region 1.
As shown in fig. 3, the bulb region 1 is a bottomless shield structure for scattered X-rays of a bulb tube, and is assembled, and includes: front end plate I101, left side plate I102, right side plate I103, back end plate I104, top plate I105 and first base 14. The first base 14 is provided with a front end plate I101, a left side plate I102, a right side plate I103 and a rear end plate I104 in sequence from front to back and from left to right, and then a top plate I105 is arranged at the top. The front end plate I101 is provided with a first window 4 for lifting the X-ray beam limiting channel 601, the inner side of the first window 4 is provided with a square tube sleeve frame I603, the right side plate I103 is provided with a sliding door 3, and the sliding door 3 is movably connected with the right side plate I103 through a hinge 5. The sliding door 3 is provided with a shielding lead plate 16, and the shielding lead plate 16 is arranged at the periphery and the top in the bulb region 1.
As shown in fig. 4, the bulb elevating mechanism 2 includes: the device comprises a box body assembly 200, a mechanical transmission assembly I220, a lifting guide assembly I210, a connecting assembly I230 and a bulb tube assembly 240.
The case assembly 200 includes: top cover 201, case i 202, and side cover i 203. Top of the box I202 is provided with a top cover 201, and front is provided with a side cover I203.
The mechanical transmission assembly i 220 includes: synchronous motor I221, bearing frame I222, adapter sleeve I223, GQ lead screw I224, fixture block formula GQ nut I225 and take seat aligning ball bearing I226. A bearing seat I222 is arranged on the synchronous motor I221, and the synchronous motor I221 is connected with a GQ screw rod I224 through a connecting sleeve I223; the GQ screw rod I224 is connected with a clamping block type GQ nut I225, and then is fixedly connected with the inner top of the box body I202 through a seated aligning ball bearing I226; the clamping block type GQ nut I225 is connected with the connecting frame I231, and the synchronous motor I221 and the bearing seat I222 are fixedly connected with the inner bottom of the box body I202.
The lift guide assembly i 210 includes: the ball tube assembly 240, the mounting plate 211, two guide posts I212, four guide bearings I213, a guide post frame I214 and a guide post fixing plate I215. The guide post frame I214 is fixed on the inner upper part of the box body I202, and the rear side of the mechanical transmission component I220; guide bearings I213 are respectively arranged at two ends of the guide post frame I214, a guide post I212 is arranged in the guide bearings I213, and the guide post I212 is fixedly connected with a guide post fixing plate I215 at the bottom end; the top end of the guide pillar I212 is provided with a mounting plate 211, and the mounting plate 211 is provided with a bulb assembly 240.
The connection assembly i 230 includes: a right-angle bayonet type connecting frame I231 and a fixing frame I232. The right-angle bayonet type connecting frame I231 is inserted into a clamping block of a clamping block type GQ nut I225 on the transmission assembly 220 and is connected with the mechanical transmission assembly I220, and the fixing frame I232 is fixedly connected with the connecting frame I231 and the guide pillar fixing plate I215 respectively.
Bulb assembly 240 includes: a bracket mounting plate 241, two bulb brackets 242, a bulb 243, a beam splitter 244 and a bulb locking device 245. The bulb support 242 is fixed on the mounting plate 211, the bulb support 242 is fixedly provided with a bulb 243 through a bulb locking device 245, and the bulb 243 is provided with a light beam splitter 244. The bulb holder 242 is fabricated and cut along a horizontal center position. The bulb locking device 245 includes: the ball tube bracket 242 and the ball tube 243 are connected and fixed by the locking block and the locking screw.
The bulb assembly 240 is provided on top of the bulb elevating mechanism 2.
In another embodiment, four guide posts and eight guide bearings are adopted, which is more beneficial to the stability of the bulb elevating mechanism 2.
As shown in fig. 5, the screen frame lifting mechanism 7 includes: a fixed gear box 700, a sliding lifting box 740, a mechanical transmission assembly II 720, a lifting guide assembly II 710 and a connecting assembly II 730.
The mechanical transmission assembly ii 720 includes: synchronous motor II 721, bearing pedestal II 722, connecting sleeve II 723, GQ lead screw II 724, clamping block type GQ nut II 725 and belt pedestal aligning ball bearing II 726. A bearing seat II 722 is arranged on the synchronous motor II 721, the synchronous motor II 721 is connected with a GQ screw rod II 724 through a connecting sleeve II 723, a clamping block type GQ nut II 725 is connected with the GQ screw rod II 724, the GQ screw rod II 724 is fixedly connected with the inner top of the box body II 701 through a self-aligning ball bearing II 726 with a seat, and the synchronous motor II 721 and the bearing seat II 722 are fixedly connected with the inner bottom of the box body II 701.
The elevation guide assembly ii 710 includes: two guide rails 711, four guide rollers 712, and four positioning rollers 713.
The connection assembly ii 730 includes: a right angle bayonet type connecting frame II 731, a fixing plate 732 and a lifting lever 733. The bayonet of the connecting frame II 731 is inserted into the clamping block of the clamping block type GQ nut II 725, and is connected with the mechanical transmission assembly II 720. The fixing plate 732 is fixedly connected to the connection frame ii 731 and the lift lever 733 provided at the bottom of the rear surface of the sliding lift box 740, respectively.
The fixed gear box 700 includes a box body ii 701 and a side cover ii 702. Guide rails 711 are respectively arranged on two sides of the box II 701.
The upper frame of the sliding lifting box 740 has a frame structure, and the lower part has a box structure, comprising: casing III 741, frame 742 and side cover IV 743. A screen frame 742 is arranged at the top of the box III 741, and a side cover plate IV 743 is arranged in front of the box III 741. The frame 742 is provided with a window 744 through which the x-ray beam limiting channel 601 can pass when assembled. Two groups of guide rollers 712 and two groups of positioning rollers 713 are respectively arranged on two sides in the box body III 741.
The sliding lifting box 740 is sleeved by fixing the guide rails 711 on the two sides of the transmission box 700 by using the guide rollers 712 and the positioning rollers 713 on the two sides in the box body III 741.
As shown in fig. 6, the DR imaging plate elevating mechanism 9 includes: a transmission case assembly 900, a mechanical transmission assembly 920, a lifting guide assembly iii 910, a connection assembly iii 930, and a DR imaging plate case assembly 940.
The transmission case assembly 900 includes a case iv 901, an upper cover 902, and a side cover iii 903. An upper cover 902 is arranged at the top of the box IV 901, and a side cover plate III 903 is arranged in front of the box IV 901.
The mechanical transmission assembly 920 includes: synchronous motor III 921, bearing seat III 922, connecting sleeve III 923, GQ lead screw III 924, clamping block type GQ nut III 925 and belt seat aligning ball bearing III 926. A bearing seat III 922 is arranged on a synchronous motor III 921, the synchronous motor III 921 is connected with a GQ screw III 924 through a connecting sleeve III 923, the GQ screw III 924 is connected with a clamping block type GQ nut III 925, and the GQ screw III 924 is fixed at the inner top of the box IV901 through a self-aligning ball bearing III 926 with a seat. The synchronous motor III 921 and the bearing seat III 922 fix the inner bottom of the box IV 901.
The elevation guide assembly iii 910 includes: the DR imaging panel box mounting plate 911, two guide posts II 912, four guide bearings II 913, a guide post rack II 914, and a guide post fixing plate 915. The bottom end of the guide column II 912 is provided with a guide column fixing plate 915, the guide column II 912 is fixedly connected with the guide column fixing plate 915 through a guide bearing II 913 of the guide column frame II 914, and the top end is fixedly provided with a DR imaging plate box mounting plate 911; the guide post frame II 914 is fixed on the rear side of the inner upper part of the box IV 901.
In another embodiment, four guide posts and eight guide bearings are adopted, so that the stability of the DR imaging plate lifting mechanism 9 is facilitated.
Connection assembly iii 930 includes: a right angle bayonet type connecting frame III 931 and a fixing frame 932. The bayonet of the connecting frame III 931 is inserted into the clamping block of the clamping block type GQ nut III 925 and is movably connected with the transmission component 920. The fixing frame 932 is respectively connected and fixed with the connecting frame III 931 and the guide post fixing plate 915.
The DR imaging plate box assembly 940 includes: a tilt pad 941, a cover 942, a DR imaging plate 943, and a housing V944. The case V944 is fixedly mounted on the DR imaging plate case mounting plate 911; a case cover 942 is provided in front of the case V944, and a DR imaging plate 943 is provided in the case V944.
The cover 942 has a window I945 having the same size as the X-ray sensitive range of the DR imaging panel 943. The back of the box V944 is provided with a window II 946. The size of window II 946 is greater than window I945 to ensure that the main beam of X-rays is unobstructed into the remaining X-ray scattering capsule 12 after radiography.
As shown in fig. 6, the guard 10 includes: the X-ray channel 1001, and a shielding plate 1002 is fixed to the X-ray channel 1001. The shield 1002 has a window III 1004. The X-ray channel 1001 is the same size as the window iii 1004 of the shield 1002. A shielding lead plate 16 is provided in the X-ray channel 1001 and on the shielding plate 1002. The four sides of the shielding plate 1002 are folded and arranged in the residual X-ray scattering cabin, the square tube sleeve frame II 1003 is arranged on the inner side of the second window 11, and the shielding plate 1002 covers the square tube sleeve frame II 1003 after being assembled, so that the leakage and scattering equivalent of scattering lines in the residual X-ray scattering cabin 12 to the physical examination area 8 are effectively reduced.
As shown in fig. 7, the remaining X-ray scattering modules 12 are bottomless shields, and a front end plate ii 1201, a left side plate ii 1202, a right side plate ii 1203, and a rear end plate ii 1204 are fixed to the second base 15 in this order, and then a top plate ii 1205 is provided on top. The front end plate ii 1201 is provided with a second window 11 for lifting the X-ray tunnel 1001, and a square tube cover ii 1003 is provided inside the second window 11. Shielding lead plates 16 are arranged at the periphery and the top of the rest of the X-ray scattering cabin 12. The X-ray channel 1001 of the shielding device 10 is fixed at one end to the back of the case v 944 and at the other end extends into the remaining X-ray scattering chamber 12 through the second window 11 in the front end plate ii 1201, and then the shielding plate 1002 and the X-ray channel 1001 are connected and fixed.
The distance from the X-ray beam limiting channel opening to the DR imaging plate box is 250mm-750mm, preferably 450 mm.
The bulb and DR imaging plate were set at 2-25 inclined, and the experimental protocol was performed at 6 inclined.
Another embodiment provides that the bulb and DR imaging plate box are vertically disposed.
The device is suitable for vehicle DRX radiography and indoor DRX radiography.
The physical examination area 8 is provided with a platform 17 inclined by 6 degrees at the standing position of the subject.
The device is suitable for vehicle DRX radiography and indoor DRX radiography.
The method comprises the following steps: test comparative table, same exposure conditions: 125kv.3.3mas (100 ma,32 ms), 30cm 20cm standard motif.
Table 1 three physical examination machine room induced subject head and gonad scatter dose comparison (mAs/h)
Results 1: detection site: conventional X-ray vehicle physical examination room equipment name: siemens Polydoros LX DR, detection of working conditions: the empty detection points of 125KV,50mAs and 200ms are shown in the attached drawing
It can be seen that the arrangement of the residual X-ray absorbing device can obviously reduce the scattered radiation irradiated dose of the non-examined body position of the examined person and reduce the radiation injury to the examined person.
Claims (8)
1. The utility model provides an X ray radiation protection device that bulb, screen frame, DR imaging plate linkage go up and down which characterized in that: comprising the following steps: the device comprises a bulb area (1), an X-ray beam limiting device (6), a bulb tube lifting mechanism (2), a screen frame lifting mechanism (7), a physical examination area (8), a DR imaging plate lifting mechanism (9) and a residual X-ray absorbing device; the X-ray radiation protection device capable of being lifted in a linkage way is arranged in a fixed shielding physical examination area (8); the X-ray beam limiting channel (601) can be lifted and lowered in the first window (4) without blocking; the bulb tube lifting mechanism (2), the screen frame lifting mechanism (7) and the DR imaging plate lifting mechanism (9) synchronously lift in a linkage way, and the identity of the cross center positions of the bulb tube lifting mechanism, the screen frame lifting mechanism and the DR imaging plate lifting mechanism is ensured; the bulb tube lifting mechanism (2) and the screen frame lifting mechanism (7) are arranged in the bulb tube region (1) and are fixed on the first base (14) together with the bulb tube region (1); the X-ray beam limiting device (6) is arranged at the upper part of the screen frame lifting mechanism (7), and the X-ray beam limiting channel (601) passes through the first window (4) and stretches into the physical examination area (8); the bulb tube lifting mechanism (2) is arranged at one side of the screen frame lifting mechanism (7); a DR imaging plate lifting mechanism (9) is arranged at the position of 180cm of the focal length of the bulb tube, the distance between the ray outlet of the X-ray beam limiting channel (601) and the DR imaging plate box assembly (940) is 250mm-750mm, and the DR imaging plate box assembly (940) of the DR imaging plate lifting mechanism (9) is connected with the rest X-ray absorption device;
The screen frame lifting mechanism (7) comprises: a fixed transmission case (700), a sliding lifting case (740), a mechanical transmission assembly II (720), a lifting guide assembly II (710) and a connecting assembly II (730);
The mechanical transmission assembly II (720) comprises: synchronous motor II (721), bearing seat II (722), connecting sleeve II (723), GQ screw II (724), clamping block type GQ nut II (725) and self-aligning ball bearing II (726); a bearing seat II (722) is arranged on the synchronous motor II (721), the synchronous motor II (721) is connected with a GQ screw rod II (724) through a connecting sleeve II (723), a clamping block type GQ nut II (725) is arranged on the GQ screw rod II (724), and the GQ screw rod II (724) is fixedly connected with the box body II (701) through a seated aligning ball bearing II (726); the synchronous motor II (721) and the bearing seat II (722) are fixedly connected with the bottom of the box body II (701);
The lifting guide assembly II (710) includes: a guide rail (711), a guide roller (712), and a positioning roller (713);
the connection assembly II (730) includes: a right-angle bayonet type connecting frame II (731), a fixed plate (732) and a lifting lever (733); the connecting frame II (731) is connected with the clamping block type GQ nut II (725); the fixed plate (732) is respectively connected with the connecting frame II (731) and the lifting lever (733) fixed at the bottom of the sliding lifting box (740);
The fixed transmission case (700) comprises a case body II (701) and a side cover plate II (702); guide rails (711) are respectively arranged on two sides of the box body II (701);
the upper portion screen frame of slip lift case (740) is frame-type structure, and the lower part is box-type structure, includes: the box body III (741), a screen frame (742) is arranged at the top of the box body III (741), and a side cover plate IV (743) is arranged in front of the box body III (741); a window (744) is arranged on the screen frame (742), and the X-ray beam limiting channel (601) can pass through the window (744) when assembled; guide rollers (712) and positioning rollers (713) are respectively arranged on two sides of the inner side of the box body III (741);
the sliding lifting box (740) is sleeved by utilizing guide rollers (712) and positioning rollers (713) on two sides in a box body III (741) and fixing guide rails (711) on two sides of the transmission box (700);
The DR imaging plate lifting mechanism (9) comprises: a transmission box body assembly (900), a mechanical transmission assembly (920), a lifting guide assembly III (910), a connecting assembly III (930) and a DR imaging plate box assembly (940);
The transmission box body assembly (900) comprises a box body IV (901), an upper cover (902) is arranged at the top of the box body IV (901), and a side cover plate III (903) is arranged in front of the box body IV (901);
The mechanical transmission assembly (920) includes: the self-aligning type hydraulic self-aligning device comprises a synchronous motor III (921), a bearing seat III (922), a connecting sleeve III (923), a GQ screw rod III (924), a clamping block type GQ nut III (925) and a self-aligning ball bearing III (926), wherein the bearing seat III (922) is arranged on the synchronous motor III (921), the synchronous motor III (921) is connected with the GQ screw rod III (924) through the connecting sleeve III (923), the GQ screw rod III (924) is connected with the clamping block type GQ nut III (925), and the GQ screw rod III (924) is fixed at the inner top of a box IV (901) through the self-aligning ball bearing III (926); the synchronous motor III (921) and the bearing seat III (922) are fixed at the inner bottom of the box IV (901);
The elevation guide assembly III (910) includes: the DR imaging plate box mounting plate (911), a guide post II (912), a guide bearing II (913), a guide post frame II (914) and a guide post fixing plate (915); a guide post fixing plate (915) is arranged at the bottom end of the guide post II (912), the guide post II (912) is fixedly connected with the guide post fixing plate (915) through a guide bearing II (913) on the guide post frame II (914), and a DR imaging plate box mounting plate (911) is fixedly arranged at the top end; the guide post frame II (914) is fixed at the rear side of the upper mechanical transmission component (920) in the box body IV (901);
the connection assembly III (930) includes: a right-angle bayonet type connecting frame III (931) and a fixing frame 932; the connecting frame III (931) is connected with the clamping block type GQ nut III (925), and the fixing frame (932) is respectively connected and fixed with the connecting frame III (931) and the guide post fixing plate (915);
The X-ray beam limiting device (6) comprises: an X-ray beam limiting channel (601), wherein a shielding plate I (602) is arranged on the X-ray beam limiting channel (601); a shielding lead plate (16) is arranged in the X-ray beam limiting channel (601) and on the shielding plate I (602); the X-ray beam limiting channel (601) is a square or trapezoid X-ray channel for limiting the beam outlet direction and the beam outlet range of the bulb X-ray; four edges of the shielding plate I (602) are sleeved on the X-ray beam limiting channel (601) and are fixedly connected with the screen frame (742), and no blocking exists when the shielding plate I (602) and the square tube sleeve frame I (603) at the inner side of the first window (4) are lifted; the periphery of the shielding plate I (602) is folded and the square tube sleeve frame I (603) is arranged, so that the scattered ray in the bulb area (1) can be effectively reduced in terms of leaking and scattering equivalent to the physical examination area (8);
Also included is a guard (10), the guard (10) comprising: the X-ray channel (1001), the size of the X-ray channel (1001) is the same as the size of a window II (946) behind the box V (944), and the X-ray channel (1001) is connected with a shielding plate (1002) with four folded edges; a window III (1004) is arranged on the shielding plate (1002); the dimensions of which are the same as those of the X-ray channels (1001); a shielding lead plate (16) is arranged in the X-ray channel (1001) and on the shielding plate (1002); the shielding plate (1002) covers the square pipe sleeve frame II (1003), and the square pipe sleeve frame II (1003) is arranged at the inner side of the second window (11); the shielding plate (1002) is arranged in the residual X-ray scattering cabin (12); due to the fact that the periphery of the shielding plate (1002) is folded and the Fang Guantao frame II (1003) is arranged, the scattering line in the residual X-ray scattering cabin (12) can be effectively reduced in terms of leaking and scattering equivalent.
2. The X-ray radiation protection device for the joint lifting of a bulb, a screen frame and a DR imaging plate according to claim 1, wherein: the bulb region (1) is a bottomless shielding body structure of bulb X-ray scattered rays, is assembled and comprises: a front end plate I (101), a left side plate I (102), a right side plate I (103), a rear end plate I (104), a top plate (105) and a first base (14); a front end plate I (101), a left side plate I (102), a right side plate I (103) and a rear end plate I (104) are sequentially arranged on the first base (14) in sequence from front to back and left to right, and then a top plate (105) is arranged at the top; a first window (4) for lifting the X-ray beam limiting channel (601) is arranged on the front end plate I (101), a lead plate shielding sliding door (3) is arranged on the right side plate I (103) of the square tube sleeve frame I (603) arranged on the inner side of the first window (4), and the sliding door (3) is movably connected with the right side plate I (103) through a hinge (5); the sliding door (3) is provided with a shielding lead plate (16), and the shielding lead plate (16) is arranged at the inner periphery and the top of the bulb tube area (1);
the bulb elevating mechanism (2) comprises: the device comprises a box body assembly (200), a mechanical transmission assembly I (220), a lifting guide assembly I (210), a connecting assembly I (230) and a bulb tube assembly (240);
The case assembly (200) includes: a top cover (201), a box body I (202) and a side cover plate I (203); the top of the box body I (202) is provided with a top cover (201), and the front part is provided with a side cover plate I (203);
The mechanical transmission assembly I (220) comprises: the synchronous motor I (221), the bearing seat I (222), the connecting sleeve I (223), the GQ screw rod I (224), the clamping block type GQ nut I (225) and the self-aligning ball bearing I (226) with the seat; a bearing seat I (222) is arranged on the synchronous motor I (221), and the synchronous motor I (221) is connected with a GQ screw rod I (224) through a connecting sleeve I (223); the GQ screw rod I (224) is connected with the clamping block type GQ nut I (225), and then is fixedly connected with the inner top of the box body I (202) through the self-aligning ball bearing I (226) with a seat; the synchronous motor I (221) is fixedly connected with the bearing seat I (222) and the inner bottom of the box body I (202); the clamping block type GQ nut I (225) is connected with the connecting frame I (231);
The lift guide assembly I (210) includes: the device comprises a bulb tube assembly (240), a mounting plate (211), a guide column I (212), a guide bearing I (213), a guide column frame I (214) and a guide column fixing plate I (215); the guide post frame I (214) is fixed at the inner upper part of the box body I (202), and the rear side of the mechanical transmission component I (220); guide bearings I (213) are respectively arranged at two ends of the guide post frame I (214), guide posts I (212) are arranged in the guide bearings I (213), and the guide posts I (212) are fixedly connected with a guide post fixing plate I (215) at the bottom end; the top end of the guide post I (212) is provided with a mounting plate (211), and the mounting plate (211) is provided with a bulb tube assembly (240);
The connection assembly I (230) includes: a right-angle bayonet type connecting frame I (231) and a fixing frame I (232); the connecting frame I (231) is connected with the clamping block type GQ nut I (225); the fixing frame I (232) is fixedly connected with the connecting frame I (231) and the guide pillar fixing plate I (215) respectively;
The bulb assembly (240) includes: a bracket mounting plate (241), a bulb bracket (242), a bulb (243), a beam splitter (244) and a bulb locking device (245); the bulb support (242) is fixed on the mounting plate (211), the bulb support (242) is fixedly provided with a bulb (243) through a bulb locking device (245), and the bulb (243) is provided with a light beam device (244); the bulb support (242) is assembled and is cut along the horizontal center position; the bulb locking device (245) comprises: locking blocks and locking screws.
3. The X-ray radiation protection device for the joint lifting of a bulb, a screen frame and a DR imaging plate according to claim 1, wherein: the remaining X-ray scattering capsule (12) is a bottomless shield comprising: a front end plate II (1201), a left side plate II (1202), a right side plate II (1203), a rear end plate II (1204) and a top plate II (1205); a second window (11) for lifting the X-ray channel (1001) is arranged on the front end plate II (1201); a square pipe sleeve frame II (1003) is arranged on the inner side of the second window (11); shielding lead plates (16) are arranged at the inner periphery and the top of the residual X-ray scattering cabin (12); one end of an X-ray channel (1001) of the protection device (10) is fixed on the back of the box body V (944), the other end of the X-ray channel passes through a second window (11) on the front end plate II (1201) and stretches into the rest X-ray scattering cabin (12), and then the shielding plate (1002) is connected and fixed with the X-ray channel (1001).
4. The X-ray radiation protection device for the joint lifting of a bulb, a screen frame and a DR imaging plate according to claim 1, wherein: the standing position of the detected person in the physical examination area (8) is provided with a platform (17) inclined by 2-25 degrees.
5. The X-ray radiation protection device for the joint lifting of a bulb, a screen frame and a DR imaging plate according to claim 2, wherein: the bulb (243) of the bulb assembly (240) is disposed vertically or inclined by 2 ° -25 °.
6. The X-ray radiation protection device for the joint lifting of a bulb, a screen frame and a DR imaging plate according to claim 1, wherein: the housing V (944) of the DR imaging panel housing assembly (940) is disposed vertically or inclined by 2-25.
7. The X-ray radiation protection device for the joint lifting of a bulb, a screen frame and a DR imaging plate according to claim 1, wherein: the device is used for vehicle-mounted DRX radiography.
8. The X-ray radiation protection device for the joint lifting of a bulb, a screen frame and a DR imaging plate according to claim 1, wherein: the device is used for indoor DRX radiography.
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