CN111982941B - Gamma ray flaw detector with dosage rate measuring and radioactive source position identifying functions - Google Patents
Gamma ray flaw detector with dosage rate measuring and radioactive source position identifying functions Download PDFInfo
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- CN111982941B CN111982941B CN202010786380.1A CN202010786380A CN111982941B CN 111982941 B CN111982941 B CN 111982941B CN 202010786380 A CN202010786380 A CN 202010786380A CN 111982941 B CN111982941 B CN 111982941B
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- 230000005251 gamma ray Effects 0.000 title claims abstract description 71
- 230000002285 radioactive effect Effects 0.000 title claims abstract description 23
- 230000005855 radiation Effects 0.000 claims abstract description 81
- 230000001681 protective effect Effects 0.000 claims abstract description 21
- 238000005259 measurement Methods 0.000 claims abstract description 14
- 239000010410 layer Substances 0.000 claims description 33
- 239000003292 glue Substances 0.000 claims description 4
- 239000004820 Pressure-sensitive adhesive Substances 0.000 claims description 3
- 229920000728 polyester Polymers 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 2
- 230000003678 scratch resistant effect Effects 0.000 claims description 2
- 230000000903 blocking effect Effects 0.000 claims 1
- 239000000463 material Substances 0.000 description 5
- 230000004888 barrier function Effects 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
- G01N23/02—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material
- G01N23/06—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and measuring the absorption
- G01N23/18—Investigating the presence of flaws defects or foreign matter
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
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- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Measurement Of Radiation (AREA)
Abstract
The invention discloses a gamma-ray flaw detector with dose rate measurement and radioactive source position identification functions, which comprises a gamma-ray radioactive source, a display, a movable base, a frame, a main body, a logo nameplate, a radiation port, a portable handle, a shell, a control key, a display screen, a flat frame, a rubber pad, a movable wheel, a storage groove, a shrinkage protective film and a groove.
Description
Technical Field
The invention belongs to the technical field of flaw detectors, and particularly relates to a gamma-ray flaw detector with functions of measuring a dosage rate and identifying the position of a radioactive source.
Background
The gamma-ray flaw detector has the advantages that: 1. the detection thickness is large, and the penetrating power is strong. 2. The device has small volume and light weight, does not need water or electricity, and is suitable for field operation; 3. the efficiency is high, and circumferential exposure and panoramic exposure can be realized for the circular seam and the spherical tank; 4. can continuously run and is not influenced by external conditions such as temperature, pressure, magnetic field and the like; 5. the equipment failure is low. The device has no easy damage to parts; 6. compared with the X-ray machine with the same penetrating power, the X-ray machine has low price.
The existing gamma-ray flaw detector technology has the following problems: the existing gamma-ray source and display of the gamma-ray flaw detector are of a separated structure, so that the gamma-ray flaw detector is inconvenient to transport on one hand and inconvenient to use on the other hand.
Disclosure of Invention
The invention aims to provide a gamma-ray flaw detector with dose rate measurement and radioactive source position identification functions, so as to solve the problems that a gamma-ray source and a display of the gamma-ray flaw detector proposed in the background art are of a separated structure, so that the gamma-ray flaw detector is inconvenient to transport on one hand and inconvenient to use on the other hand.
In order to achieve the above purpose, the present invention provides the following technical solutions:
The utility model provides a gamma ray flaw detector with dose rate measurement and radioactive source position recognition function, includes gamma ray radioactive source, display, portable base, frame, main part, identification data plate, radiation port, portable handle, casing, control button, display screen, flat board frame, rubber pad, removal round, storage tank, shrink protection film, recess, coil spring, radiation protection film, couple and push-and-pull panel, gamma ray radioactive source installs and fixes in the upper end position department of portable base, the upper end of portable base just is provided with the display in the one side position department of gamma ray radioactive source, gamma ray radioactive source and display all with external power source electric connection.
Preferably, the gamma-ray radiation source comprises a frame, a main body, a logo plate and a radiation port, wherein the frame is arranged at the front end and the rear end of the main body, the logo plate is arranged at one side of the frame, the frame and the logo plate are fixedly connected through screws, and the radiation port is arranged at one side of the main body.
Preferably, the display comprises a portable handle, a shell, control keys and a display screen, wherein the portable handle is arranged at the upper end of the shell, the display screen is arranged in front of the shell, and the control keys are arranged at the front end of the shell and at the right side of the display screen.
Preferably, the movable base comprises a flat plate frame, a rubber pad, a movable wheel, a storage groove, a shrinkage type protective film and a groove, the movable wheel is arranged at four corners of the lower end of the flat plate frame, the storage groove is formed in the flat plate frame, the shrinkage type protective film is arranged in the storage groove, the rubber pad is inlaid at the upper end of the flat plate frame, and the groove is formed in the side face of the flat plate frame.
Preferably, the shrinkage type protective film comprises a coil spring, a radiation-proof film, a hook and a push-pull panel, wherein the hook is arranged at the front end position of the push-pull panel, the radiation-proof film is arranged on one side, far away from the hook, of the push-pull panel, and the coil spring is arranged on one side, far away from the push-pull panel, of the radiation-proof film.
Preferably, the rotating shaft is inserted into the coil spring, and the rotating shaft is fixedly connected with the inner side wall of the storage groove through a bearing.
Preferably, the two hooks are arranged in total, and the hooks are fixedly arranged at the two sides of the front end of the push-pull panel in a welding mode.
Preferably, the material of radiation protection film is multilayer structure, the material of radiation protection film is scratch-resistant layer, wear-resisting skin, polyester layer, shielding layer, barrier layer, pressure sensitive adhesive layer and protection film, the both sides of radiation protection film are bilayer structure, the front and back both sides of radiation protection film are formed through folding, and its upper strata width is the quarter of radiation protection film lower floor width respectively.
Preferably, an embedded groove is formed in the inner position of the upper end of the flat plate frame, the embedded groove and the rubber pad are the same in size, and the rubber pad is adhered and fixed in the embedded groove through glue.
Preferably, the movable wheels are arranged in four, and the four movable wheels are fixed at four corners of the lower end of the flat plate frame through screw installation.
Preferably, the grooves are arranged in two, the two grooves are arranged and fixed at the positions of the two sides of the back surface of the flat plate frame, the grooves and the hooks are matched and fixed, and the hooks are respectively inserted into the inner positions of the grooves.
Preferably, the length and the width of the push-pull panel are respectively equal to the length and the width of the section of the containing groove.
Compared with the prior art, the invention provides a gamma-ray flaw detector with dose rate measurement and radioactive source position identification functions, which has the following beneficial effects:
1. The movable base is arranged at the lower end of the gamma-ray flaw detector and consists of the flat plate frame, the rubber pad, the movable wheels, the storage groove, the shrinkage protective film and the groove, and the gamma-ray radiation source and the display can be directly placed on the movable base through the arrangement of the movable base, so that the gamma-ray radiation source and the display can be transported and used more conveniently, the gamma-ray flaw detector can be used more conveniently, and the usability of the gamma-ray flaw detector is improved;
2. According to the invention, the embedded groove is formed in the movable base, the rubber pad is adhered and embedded in the embedded groove through the glue, and the friction force between the movable base and the gamma-ray radiation source and between the movable base and the display can be increased through the arrangement of the rubber pad, so that the gamma-ray radiation source and the display are placed more stably, and the gamma-ray radiation source and the display are prevented from slipping off the movable base;
3. The invention installs the shrink type protective film on the movable base, the shrink type protective film is made up of coil spring, radiation protection film, couple and push-pull panel, the two sides of the radiation protection film are double-deck structure, the front and back sides of the radiation protection film are formed by folding, its upper layer width is one fourth of the lower layer width of the radiation protection film separately, through this kind of design, can pull out the radiation protection film from the inside of the containing groove, then couple the couple to inside the recess, then can pull down the radiation protection film of upper layer, then place in the front and back both sides position of gamma-ray radiation source and display, thus can wrap up whole gamma-ray radiation source and display through the radiation protection film, thus has avoided the gamma-ray radiation in the gamma-ray radiation source, thus make the use of the gamma-ray flaw detector safer.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate and together with the embodiments of the invention and do not constitute a limitation to the invention, and in which:
FIG. 1 is a schematic diagram of a gamma-ray flaw detector with dose rate measurement and radioactive source position identification functions according to the present invention;
FIG. 2 is a schematic view of a gamma-ray radiation source according to the present invention;
FIG. 3 is a schematic diagram of a display according to the present invention;
Fig. 4 is a schematic view of a main body structure of a mobile base according to the present invention;
FIG. 5 is a schematic side view of a mobile base according to the present invention;
FIG. 6 is a schematic view of a retractable protective film according to the present invention;
In the figure: 1. a gamma radiation source; 2. a display; 3. a mobile base; 4. a frame; 5. a main body; 6. a logo nameplate; 7. a radiation port; 8. a portable handle; 9. a housing; 10. a control key; 11. a display screen; 12. a flat plate frame; 13. a rubber pad; 14. a moving wheel; 15. a storage groove; 16. a shrink-type protective film; 17. a groove; 18. a coil spring; 19. a radiation protective film; 20. a hook; 21. and pushing and pulling the panel.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Referring to fig. 1-6, the present invention provides a technical solution:
The gamma-ray flaw detector with dose rate measurement and radioactive source position identification functions comprises a gamma-ray radioactive source 1, a display 2, a movable base 3, a frame 4, a main body 5, a logo plate 6, a radiation port 7, a portable handle 8, a shell 9, a control key 10, a display screen 11, a flat plate frame 12, a rubber pad 13, a movable wheel 14, a storage groove 15, a shrinkage protective film 16, a groove 17, a coil spring 18, a radiation-proof film 19, a hook 20 and a push-pull panel 21, wherein the gamma-ray radioactive source 1 is fixedly arranged at the upper end position of the movable base 3, the gamma-ray radioactive source 1 comprises the frame 4, the main body 5, the logo plate 6 and the radiation port 7, the frame 4 is arranged at the front end position and the rear end position of the main body 5, the logo plate 6 is arranged at one side position of the frame 4, the frame 4 is fixedly connected with the logo plate 6 through screws, and the radiation port 7 is arranged at one side position of the main body 5;
The gamma-ray flaw detector with the dose rate measurement and radioactive source position identification functions comprises a flat frame 12, a rubber pad 13, a moving wheel 14, a containing groove 15, a retractable protective film 16 and a groove 17, wherein the moving wheel 14 is arranged at four corners of the lower end of the flat frame 12, the containing groove 15 is arranged in the flat frame 12, the retractable protective film 16 is arranged in the containing groove 15, the retractable protective film 16 comprises a coil spring 18, a radiation-proof film 19, a hook 20 and a push-pull panel 21, the hook 20 is arranged at the front end of the push-pull panel 21, the number of the hooks 20 is two, the hook 20 is fixedly arranged at the positions of two sides of the front end of the push-pull panel 21 in a welding mode, the length and the width of the push-pull panel 21 are respectively equal to the length and the width of the section of the containing groove 15, and the radiation-proof film 19 is arranged on one side of the push-pull panel 21 away from the hook 20;
The gamma-ray flaw detector with dose rate measurement and radioactive source position identification functions is characterized in that the material of the radiation protection film 19 is of a multi-layer structure, the material of the radiation protection film 19 is a scratch protection layer, a wear-resistant outer layer, a polyester layer, a shielding layer, a barrier layer, a pressure-sensitive adhesive layer and a protection film, the interlayer material of the radiation protection film 19 is a known technology, so that excessive redundancy is avoided in the technical document, two sides of the radiation protection film 19 are of a double-layer structure, the front side and the rear side of the radiation protection film 19 are formed by folding, the width of the upper layer of the radiation protection film is one fourth of the width of the lower layer of the radiation protection film 19, one side of the radiation protection film 19 far away from a push-pull panel 21 is provided with a coil spring 18, the inside of the coil spring 18 is inserted with a rotating shaft, the rotating shaft is fixedly connected with the inner side wall of a containing groove 15 through a bearing, the upper end of a rubber pad 13 is embedded in the inner position of the upper end of the flat plate frame 12, the size of the embedded groove is identical with the rubber pad 13, the rubber pad 13 is adhered and fixed in the inner part of the embedded groove through glue, the side of the embedded groove, grooves 17 are arranged at the side positions of the flat plate frame 12, the grooves 17 are arranged at the side positions of the two grooves 17 and are arranged at the same, the positions, the two grooves 17 are respectively, the two grooves 17 are arranged at the positions of the two grooves 17 are fixedly arranged at the positions of the two sides of the hook 1 and the hook 20, and are respectively, and are arranged at the positions of the positions corresponding positions and are matched with the positions at the positions 2, and are matched with the positions at the positions, and at the positions 2, and at positions and 20;
The utility model provides a gamma ray flaw detector with dose rate measurement and radioactive source position recognition function, display 2 includes portable handle 8, casing 9, control button 10 and display screen 11, and the upper end position department of casing 9 is provided with portable handle 8, and the place ahead of casing 9 is provided with display screen 11, and the front end of casing 9 just is located the right side position department of display screen 11 and is provided with control button 10, gamma ray radioactive source 1 and display 2 all with external power source electric connection.
The working principle and the using flow of the invention are as follows: after the invention is installed, firstly, the gamma-ray radiation source 1 and the display 2 are placed on the movable base 3, the movable base 3 is composed of a flat frame 12, a rubber pad 13, a movable wheel 14, a containing groove 15, a shrinkage protective film 16 and a groove 17, the gamma-ray radiation source 1 and the display 2 can be directly placed on the movable base 3 through the arrangement of the movable base 3, so that the gamma-ray radiation source 1 and the display 2 can be more conveniently transported and used, then the gamma-ray radiation source 1 and the display 2 are moved to the positions required to be used through the movable base 3, at the moment, the radiation port 7 on the gamma-ray radiation source 1 is aligned to the positions required to be detected, then a power switch on the gamma-ray radiation source 1 is turned on, at the moment, the gamma-ray radiation source 1 emits gamma-ray, at the moment, the detected workpiece irradiated by the gamma-ray can be displayed on the display screen 11 of the display 2, then judging and detecting the internal concrete condition of the workpiece according to the picture displayed on the display screen 11, installing a contraction type protective film 16 on the movable base 3, wherein the contraction type protective film 16 is composed of a coil spring 18, a radiation protection film 19, a hook 20 and a push-pull panel 21, the two sides of the radiation protection film 19 are of a double-layer structure, the front side and the rear side of the radiation protection film 19 are respectively formed by folding, the width of the upper layer is one fourth of the width of the lower layer of the radiation protection film 19, by adopting the design, when gamma rays are not used, the radiation protection film 19 can be pulled out from the storage groove 15, then the hook 20 is hung in the groove 17, at the moment, the radiation protection film 19 on the upper layer can be pulled down, and then placed at the front side and the rear side of the gamma ray radiation source 1 and the display 2, therefore, the whole gamma-ray radiation source 1 and the display 2 can be wrapped by the radiation-proof film 19, so that gamma-ray radiation in the gamma-ray radiation source 1 is avoided, and the gamma-ray flaw detector is safer to use.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a gamma ray flaw detector with dose rate measurement and radioactive source position recognition function, including gamma ray radioactive source (1), display (2), portable base (3), frame (4), main part (5), identification nameplate (6), radiation port (7), portable handle (8), casing (9), control button (10), display screen (11), dull and stereotyped frame (12), rubber pad (13), movable wheel (14), accomodate groove (15), shrink protection film (16), recess (17), coil spring (18), radiation protection film (19), couple (20) and push-and-pull panel (21), its characterized in that: the gamma-ray radiation source (1) is arranged and fixed at the upper end position of the movable base (3), a display (2) is arranged at the upper end of the movable base (3) and positioned at one side of the gamma-ray radiation source (1), and the gamma-ray radiation source (1) and the display (2) are electrically connected with an external power supply; The gamma-ray radiation source (1) comprises a frame (4), a main body (5), a logo nameplate (6) and a radiation port (7), wherein the frame (4) is arranged at the front end and the rear end of the main body (5), the logo nameplate (6) is arranged at one side of the frame (4), the frame (4) and the logo nameplate (6) are fixedly connected through screws, and the radiation port (7) is arranged at one side of the main body (5); the display (2) comprises a portable handle (8), a shell (9), control keys (10) and a display screen (11), wherein the portable handle (8) is arranged at the upper end position of the shell (9), the display screen (11) is arranged in front of the shell (9), and the control keys (10) are arranged at the front end of the shell (9) and at the right side position of the display screen (11); The movable base (3) comprises a flat plate frame (12), a rubber pad (13), a movable wheel (14), a storage groove (15), a retractable protective film (16) and a groove (17), wherein the movable wheel (14) is arranged at the four corners of the lower end of the flat plate frame (12), the storage groove (15) is arranged in the flat plate frame (12), the retractable protective film (16) is arranged in the storage groove (15), the rubber pad (13) is embedded at the upper end of the flat plate frame (12), and the groove (17) is arranged at the side surface of the flat plate frame (12); the retractable protective film (16) comprises a coil spring (18), a radiation-proof film (19), a hook (20) and a push-pull panel (21), wherein the hook (20) is arranged at the front end position of the push-pull panel (21), the radiation-proof film (19) is arranged on one side, far away from the hook (20), of the push-pull panel (21), and the coil spring (18) is arranged on one side, far away from the push-pull panel (21), of the radiation-proof film (19); A rotating shaft is inserted into the coil spring (18), and the rotating shaft is fixedly connected with the inner side wall of the storage groove (15) through a bearing; the two hooks (20) are arranged in total, and the hooks (20) are fixedly arranged at the two sides of the front end of the push-pull panel (21) in a welding mode; the radiation protection film (19) is made of a multi-layer structure, the radiation protection film (19) is made of a scratch-resistant layer, a wear-resistant outer layer, a polyester layer, a shielding layer, a blocking layer, a pressure-sensitive adhesive layer and a protective film, two sides of the radiation protection film (19) are of a double-layer structure, the front side and the rear side of the radiation protection film (19) are formed by folding, and the width of the upper layer of the radiation protection film is one fourth of the width of the lower layer of the radiation protection film (19) respectively;
The radiation-proof film is pulled out from the storage groove, then the hook is hung in the groove, the radiation-proof film on the upper layer can be pulled down, and the whole gamma-ray radiation source and the display are wrapped by the radiation-proof film, so that gamma-ray radiation in the gamma-ray radiation source is avoided.
2. A gamma-ray flaw detector having a dose rate measurement and radiation source position identification function as defined in claim 1, wherein: the embedded groove is formed in the inner position of the upper end of the flat plate frame (12), the embedded groove and the rubber pad (13) are identical in size, and the rubber pad (13) is adhered and fixed in the embedded groove through glue.
3. A gamma-ray flaw detector having a dose rate measurement and radiation source position identification function as defined in claim 1, wherein: four moving wheels (14) are arranged in total, and the four moving wheels (14) are all fixed at four corners of the lower end of the flat plate frame (12) through screw installation.
4. A gamma-ray flaw detector having a dose rate measurement and radiation source position identification function as defined in claim 1, wherein: the two grooves (17) are arranged in total, the two grooves (17) are arranged and fixed at the positions of the two sides of the back surface of the flat plate frame (12), the grooves (17) and the hooks (20) are matched and fixed, and the hooks (20) are respectively inserted into the inner positions of the grooves (17).
5. A gamma-ray flaw detector having a dose rate measurement and radiation source position identification function as defined in claim 1, wherein: the length and the width of the push-pull panel (21) are respectively equal to the section length and the section width of the containing groove (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010786380.1A CN111982941B (en) | 2020-08-07 | 2020-08-07 | Gamma ray flaw detector with dosage rate measuring and radioactive source position identifying functions |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010786380.1A CN111982941B (en) | 2020-08-07 | 2020-08-07 | Gamma ray flaw detector with dosage rate measuring and radioactive source position identifying functions |
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| CN111982941B true CN111982941B (en) | 2024-07-23 |
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| CN2426273Y (en) * | 2000-06-05 | 2001-04-11 | 李文钜 | Pearl nucleus detecting device for pearl shell |
| CN205920070U (en) * | 2016-08-18 | 2017-02-01 | 浙江泰克松德能源科技有限公司 | Movable's X ray element composition analyzer |
| CN208043709U (en) * | 2018-02-09 | 2018-11-02 | 兰溪市艺飞土蜂养殖专业合作社 | A kind of industrial radiation protection failure detector |
| CN207992095U (en) * | 2018-04-12 | 2018-10-19 | 中建电力建设有限公司 | X-ray flaw detection device |
| KR102094839B1 (en) * | 2018-12-03 | 2020-03-30 | 주식회사 한진중공업 | Radiation Shield Apparatus for Radiographic Penetration Testing |
| CN111398315A (en) * | 2020-04-16 | 2020-07-10 | 安徽省辐射环境监督站 | Online monitoring system of mobile gamma ray flaw detector |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207590691U (en) * | 2017-04-26 | 2018-07-10 | 浙江大学医学院附属妇产科医院 | A kind of movable type severe newborn X-ray photographic protection trolley |
| CN207263748U (en) * | 2017-09-17 | 2018-04-20 | 潘萍 | A kind of mining geology material property measurement device |
| CN208366878U (en) * | 2018-07-02 | 2019-01-11 | 沈阳一佳无损检测有限公司 | A kind of lifting device of x-ray flaw detector |
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| CN111982941A (en) | 2020-11-24 |
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