CN215770545U

CN215770545U - Portable radioactive source storage device

Info

Publication number: CN215770545U
Application number: CN202121975659.0U
Authority: CN
Inventors: 仲军民; 高乐珍; 王月
Original assignee: Shandong Walker Ndt Co ltd
Current assignee: Shandong Walker Ndt Co ltd
Priority date: 2021-08-20
Filing date: 2021-08-20
Publication date: 2022-02-08
Anticipated expiration: 2031-08-20

Abstract

The application relates to the technical field of radioactive substance protection, in particular to a portable radioactive source storage device which comprises a box body, a box cover and a source cabin, wherein one end of the box cover is hinged with the box body, and the other end of the box cover is connected with the box body through a lockset; the box body comprises an outer shell and an inner shell, the inner shell is abutted to the source cabin, an elastic protection assembly used for absorbing and converting external pressure is arranged between the outer shell and the inner shell, and a positioning assembly used for fixing the source cabin is arranged on the inner shell. This application is fixed at the source cabin of horizontal direction in to the inner shell through the locating component that sets up, links together case lid and box by the tool to lock, fixes the source cabin in vertical direction, and elasticity protection component is used for absorbing the conversion and comes from external pressure to improve the protective capacities in the source cabin to the box.

Description

Portable radioactive source storage device

Technical Field

The application relates to the technical field of radioactive substance protection, in particular to a portable radioactive source storage device.

Background

The radioactive source is a generic term for a radiation source made of a radioactive substance. The radioactive source is generally characterized by the activity of the radioactive nuclide, and the intensity of the radioactive nuclide can also be marked by the ray emissivity or the fluence rate. The radioactive sources can be divided into sealed radioactive sources (radioactive materials are sealed in a certain required shell) and non-sealed radioactive sources (radioactive materials without a shell) according to the packaging mode of the radioactive sources, and most of industrial, agricultural and medical radioactive sources are sealed radioactive sources. At present, radioactive sources have been widely used in the fields of flaw detection, medical treatment, radiation, scientific research, etc., and people have increasingly widespread application of radioactive sources, and for the situation that small-dose radioactive sources are used in industrial production, a suitable portable storage device needs to be provided for storing and transporting the radioactive sources.

At present to the radiation source generally can be provided with the storage jar when carrying out storage transportation in the use, the storage jar is made for the stereotype to prevent the radiation.

Aiming at the related technologies, the inventor finds that the radiation protection effect of the storage tank related to the radioactive source is good at present, but when the storage tank is damaged by external pressure due to collision or falling, the storage equipment has a general protection effect, and the radioactive source can cause an uncontrollable radiation effect after being damaged.

SUMMERY OF THE UTILITY MODEL

In order to improve the protective capacities of storage jar to external pressure, this application provides a portable radiation source storage device.

The application provides a portable radiation source storage device adopts following technical scheme:

a portable radioactive source storage device comprises a box body, a box cover and a source cabin, wherein one end of the box cover is hinged with the box body, and the other end of the box cover is connected with the box body through a lockset; the box body comprises an outer shell and an inner shell, the inner shell is abutted to the source cabin, an elastic protection assembly used for absorbing and converting external pressure is arranged between the outer shell and the inner shell, and a positioning assembly used for fixing the source cabin is arranged on the inner shell.

By adopting the technical scheme, the source cabin is used for placing the radioactive source, the outer shell is used for receiving pressure from the outside, the elastic protection component is used for absorbing the outside pressure and converting the outside pressure into elastic potential energy, and the influence of the outside pressure on the inner shell is reduced, so that the protection capability of the source cabin placed in the inner shell is enhanced; the box cover is rotated to be completely buckled on the box body, and the box cover and the box body are locked together through a lockset, so that the source cabin is prevented from moving in the vertical direction; the positioning assembly on the inner shell positions the source cabin in the horizontal direction, so that the source cabin is effectively prevented from moving, and the protective capability of the source cabin in the box body is further enhanced. This application is fixed at the source cabin of horizontal direction in to the inner shell through the locating component that sets up, links together case lid and box by the tool to lock, fixes the source cabin in vertical direction, and elasticity protection component is used for absorbing the conversion and comes from external pressure to improve the protective capacities in the source cabin to the box.

Preferably, the elastic protection assembly comprises a hydraulic cylinder, a base of the hydraulic cylinder is fixed on the inner wall of the shell, a piston rod of the hydraulic cylinder is connected with a bearing plate, a spring is arranged on the bearing plate, one end of the spring is fixedly connected with the bearing plate, and the other end of the spring is fixedly connected with the inner shell.

Through adopting above-mentioned technical scheme, after the shell received external pressure, the piston rod of pneumatic cylinder was absorbed partial impact by the compression, and the spring on the loading board is compressed afterwards, absorbs the pressure that comes from the external world once more to weaken the pressure that conducts to the inner shell, form the protection to the source cabin in the inner shell.

Preferably, the locating component comprises a plurality of locating grooves, the locating grooves are formed in the inner shell, convex strips are arranged on the source cabin, and the convex strips are embedded in the grooves.

By adopting the technical scheme, the raised lines on the source cabin slide along the positioning channels, so that the source cabin is conveniently placed into or taken out of the inner shell; after the secondary source cabin is placed into the inner shell, the convex strips are embedded in the positioning channels, and the influence of the source cabin on a radioactive source in the source cabin due to rotation in the inner shell is reduced.

Preferably, be provided with the warning mechanism that is used for the suggestion case lid to open on the box, warning mechanism includes emitting diode and on-off control subassembly, the on-off control subassembly includes the switch, the equal fixed connection of emitting diode and switch is on the box, emitting diode and switch pass through control circuit and connect.

Through adopting above-mentioned technical scheme, after the case lid was opened, the switch was closed, and control circuit switches on, and emitting diode lights for warning personnel's box has been opened, has had the risk of radiation. When the box cover is closed, the switch is switched off, the control circuit is not conducted, and the light emitting diode is turned off to prompt personnel to relieve the radiation risk.

Preferably, the control circuit comprises a protection resistor R0, one end of which is grounded;

the cathode of the light emitting diode D is coupled to the other end of the protection resistor R0;

a pin 3 of the NE555 chip of the DIP package is coupled to the anode of the light emitting diode D, a pin 1 of the NE555 chip is grounded, and a pin 5 of the NE555 chip is floating;

a switch K having one end coupled to the VCC voltage and the other end coupled to pin 4 and pin 8 of the NE55 chip, respectively;

one end of the capacitor C is grounded, and the other end of the capacitor C is coupled to a pin 2 of the NE555 chip;

a first resistor R1, one end of which is coupled to the connection point of the switch K and pin 8 of the NE555 chip, and the other end of which is coupled to pin 7 of the NE555 chip;

a second resistor R2, one end of which is coupled to the connection point of the first resistor R1 and pin 7 of the NE555 chip, and the other end of which is coupled to the connection point of the capacitor C and pin 2 of the NE555 chip;

pin 6 of the NE555 chip is coupled to the connection point of the capacitor C and pin 2 of the NE555 chip.

By adopting the technical scheme, after the switch K is closed, the VCC voltage is communicated with the pin 8 of the NE555 chip, the pin 1 is grounded, and the NE555 chip starts to work normally after being powered. The pin 5 is floating so that the two threshold voltages are one-third VCC and two-thirds VCC, respectively. Pin 3 outputs low level, pin 7 outputs low level, capacitor C discharges, pin 2 voltage drops, when it drops to one third VCC, pin 3 outputs high level, light emitting diode lights up; pin 7 exports the high level simultaneously, and electric capacity C is charged, and pin 6 voltage rises, and when the voltage rose to two-thirds VCC, pin 3 exported the low level, and emitting diode D extinguishes, and pin 7 exports the low level simultaneously to periodic cycle, emitting diode D realizes the scintillation, and then warns personnel's chamber door and opens, has the radiation risk.

Preferably, the switch control assembly further comprises a shifting piece and a fixing plate, one end of the shifting piece is hinged with the box cover, and the other end of the shifting piece is abutted to the switch; the fixed plate is fixedly connected with the box cover, and a second spring is arranged between the shifting piece and the fixed plate.

Through adopting above-mentioned technical scheme, when the case lid rotates and opens, the fixed plate rotates along with the case lid, and the second spring is compressed, with the plectrum push switch of switch butt to make the switch closed, control circuit switches on.

Preferably, the inner shell is internally provided with an inner shell, and the box cover is internally embedded with radiation-proof layers.

By adopting the technical scheme, the radiation-proof layer can be made of tungsten alloy or lead plates, so that rays released by a radioactive source in the source cabin are prevented from radiating outside the carriage body.

Preferably, the tank cover is connected with a fixed plug, and the fixed plug is abutted against the source tank.

Through adopting above-mentioned technical scheme, the fixed stopper can adopt flexible materials such as rubber to make, and the fixed stopper is further fixed a position the source cabin of fixing in the box, prevents that the fixed stopper from producing the ascending beat in vertical direction.

Preferably, an embedded handle is arranged on the source cabin.

Through adopting above-mentioned technical scheme, embedded handle is convenient for take out or put into the source cabin of placing in the inner shell.

In summary, the present application includes at least one of the following beneficial technical effects: this application is fixed at the source cabin of horizontal direction in to the inner shell through the locating component that sets up, links together case lid and box by the tool to lock, fixes the source cabin in vertical direction, and elasticity protection component is used for absorbing the conversion and comes from external pressure to improve the protective capacities in the source cabin to the box.

Drawings

Fig. 1 is a schematic structural diagram of a portable radiation source storage device according to an embodiment of the present application.

Fig. 2 is a sectional view taken along a-a in fig. 1.

Fig. 3 is a schematic view of an inner case in an embodiment of the present application.

Fig. 4 is a control circuit diagram in the embodiment of the present application.

Description of reference numerals: 1. a box body; 11. a housing; 12. an inner shell; 121. a positioning channel; 2. a box cover; 21. a lock; 22. a fixed plug; 3. a source capsule; 31. a convex strip; 32. an embedded handle; 4. an elastic protection component; 41. a hydraulic cylinder; 42. a carrier plate; 43. a spring; 5. a positioning assembly; 6. a warning mechanism; 61. a light emitting diode; 62. a switch control assembly; 621. a switch; 622. a shifting sheet; 623. a fixing plate; 624. a second spring; 7. and a radiation protection layer.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses portable radiation source storage device. Referring to fig. 1 and 2, a portable radioactive source storage device includes a box body 1, a box cover 2 and a source chamber 3, wherein the box body 1 is rectangular, the upper end of the box body 1 is open, and the box cover 2 is rectangular plate-shaped.

Referring to fig. 1 and 2, the tank 1 includes an inner shell 12 and an outer shell 11, the elastic protection component 4 is arranged between the inner shell 12 and the outer shell 11, the source chamber 3 is inserted into the inner shell 12, and the inner shell 12 is provided with a positioning component 5 for fixing the source chamber 3. The outer surface of the shell 11 is pasted with a rubber coating, when the shell is collided with a collision situation, foreign objects are prevented from directly impacting the shell 11, and the buffer is firstly carried out through the rubber coating, so that the transmission of the external pressure to the inside of the box body 1 is weakened. One end of the box cover 2 is hinged with the shell 11, the other end of the box cover 2 is detachably connected with the shell 11 through a lock 21, and the box cover 2 is firmly connected with the box body 1 after the lock 21 is locked; when the lock 21 is unlocked, the lid 2 can be pivoted open along the hinge axis.

Referring to fig. 1 and 2, in order to absorb and convert the external pressure and reduce the transmission of the external pressure into the tank 1, the elastic protection assembly 4 in the present application includes a hydraulic cylinder 41, a bearing plate 42 and a spring 43. In the embodiment of the present application, the hydraulic cylinders 41 are provided with five hydraulic cylinders, which are respectively fixedly connected to the four inner side peripheral surfaces of the outer shell 11 and the inner side bottom surface of the outer shell 11, the piston rods of the hydraulic cylinders 41 are welded to the bearing plates 42, and the five bearing plates 42 wrap the inner shell 12. A plurality of springs 43 are evenly distributed between the bearing plate 42 and the inner shell 12 at intervals, one end of each spring 43 is fixedly connected with the bearing plate 42, and the other end of each spring 43 is fixedly connected with the outer surface of the inner shell 12. When the tank 1 is subjected to ambient pressure, the piston rod of the hydraulic cylinder 41 and the spring 43 are compressed, absorbing the pressure and impairing the transmission of the pressure towards the source chamber 3 in the inner shell 12.

Referring to fig. 2 and 3, in order to fix the source capsule 3 in the inner casing 12 and prevent the source capsule 3 from deflecting in the inner casing 12 to adversely affect the radioactive source, the positioning assembly 5 in the present application includes a plurality of positioning grooves 121, the positioning grooves 121 are square and arranged in the vertical direction, and the plurality of positioning grooves 121 are uniformly distributed on the peripheral surfaces of four inner sides of the inner casing 12 at intervals. The source chamber 3 is fixedly connected with a convex strip 31, specifically, the convex strip 31 and the source chamber 3 are integrally formed, the convex strip 31 is rectangular, the convex strip 31 is arranged in the vertical direction, and the cross-sectional area of the convex strip 31 is equal to the transverse cross-sectional area of the positioning channel 121. The convex strip 31 on the source chamber 3 is inserted into the positioning channel 121 and then slides, so that the source chamber 3 can be firstly conveniently placed into the inner shell 12 or taken out of the inner shell 12; secondly to the source cabin 3 of putting into in the inner shell 12, the sand grip 31 is in the same place with the joint of positioning channel 121 to effectively prevent source cabin 3 and take place to deflect in inner shell 12, and then reduce the influence to putting the radiation source in source cabin 3. The top of the source cabin 3 is also provided with an embedded handle 32, so that the source cabin 3 can be conveniently taken by lifting the embedded handle 32.

Referring to fig. 2 and 3, in order to reduce the radiation amount of the radioactive source released to the outside of the box body 1, the radiation-proof layer 7 is embedded in the inner shell 12 and the box cover 2, the radiation-proof layer 7 can be made of tungsten alloy or lead plate, and the radiation-proof layer 7 forms a closed space, so that the diffusion amount of the radioactive source to the outside of the box body 1 is reduced.

Referring to fig. 1 and 2, in order to warn personnel that the box cover 2 is opened, there is a radiation risk, a warning mechanism 6 is provided in the present application, the warning mechanism 6 includes a light emitting diode 61 and a switch control component 62, the switch control component 62 includes a switch 621, the light emitting diode 61 is fixedly embedded on the outer surface of the housing 11, and the switch 621 is fixedly connected on the outer surface of the housing 11 near the hinge shaft. The light emitting diode 61 and the switch 621 are connected through a control circuit.

Referring to fig. 4, the control circuit includes a protection resistor R0, an NE555 chip packaged by a light emitting diode D, DIP, a switch K, a capacitor C, a first resistor R1, and a second resistor R2.

The protective resistor R0 is connected with the light-emitting diode D in series, and one end of the protective resistor R0 is grounded; because the working voltage range of the light emitting diode D is narrow, the protection resistor R0 is used to limit the current of the branch where the light emitting diode D is located, and protect the light emitting diode D from being burnt by a large current caused by a high voltage.

One end of the switch K is coupled to VCC voltage, the VCC voltage range is 5V to 16V, and the circuit is conveniently powered under the voltage; the other end of the switch K is coupled to a pin 4 and a pin 8 of the NE555 chip, respectively, and the pin 4 is a reset pin. And the pin 8 is a power supply pin, and the switch K is closed to supply power to the NE555 chip.

The anode of the light emitting diode D is coupled to a pin 3 of the NE555 chip, the pin 3 is an output pin, and when the pin 3 outputs a high level, the light emitting diode D lights up; when the pin 3 outputs a low level, the led D is turned off.

Pin 1 of the NE555 chip is grounded, and pin 5 of the NE555 chip is floating, so that two threshold voltages of the NE555 chip are one-third VCC and two-thirds VCC respectively.

One end of the capacitor C is grounded, and the other end of the capacitor C is coupled to pin 2 of the NE555 chip. One end of the first resistor R1 is coupled to the connection point of the switch K and pin 8 of the NE555 chip, and the other end is coupled to pin 7 of the NE555 chip. One end of the second resistor R2 is coupled to the connection point of the first resistor R1 and NE555 chip pin 7, and the other end of the second resistor R2 is coupled to the connection point of the capacitor C and NE555 chip pin 2. Pin 6 of the NE555 chip is coupled to the junction of the capacitor C and pin 2 of the NE555 chip. After the switch K is closed, the pin 3 outputs a low level, the pin 7 outputs a low level, the capacitor C discharges, the voltage of the pin 2 drops, and when the voltage drops to 1/3VCC, the pin 3 outputs a high level and the light emitting diode lights up; pin 7 exports high level simultaneously, and electric capacity C is charged, and pin 6 voltage rises, and when the voltage rose to 2/3VCC, pin 3 exports low level, and emitting diode D61 extinguishes, and pin 7 exports low level simultaneously to periodic cycle, emitting diode D realizes the scintillation, and then warns personnel's chamber door and opens, has the radiation risk.

Referring to fig. 1 and 2, in order to realize that the light emitting diode 61 flickers while the cover 2 is opened, the switch control assembly 62 in the present application further includes a paddle 622, a fixing plate 623, and a second spring 624. The shifting piece 622 is arc-shaped, one end of the shifting piece 622 is hinged with the box cover 2, and the other end of the shifting piece 622 is abutted to the switch K. The fixing plate 623 is a right-angle plate, one end of the fixing plate 623 is fixedly connected with the box cover 2, one end of the second spring 624 is fixedly connected with the shifting piece 622, and the other end of the second spring 624 is fixedly connected with the fixing plate 623. When the box cover 2 is rotated to be opened, the fixing plate 623 rotates along with the box cover 2, the second spring 624 is compressed, the switch 621 is pressed by the poking piece 622 abutted to the switch 621, the switch 621 is closed, the control circuit is conducted, and the light emitting diode 61 flickers. When the cover 2 is closed, the switch 621 is turned off, the control circuit is turned off, and the light emitting diode 61 is turned off.

Referring to fig. 2 and 3, in order to further fix the source chamber 3 in the direction of the vertical column, the present application is fixedly connected with a fixing plug 22 on the side of the tank cover 2 facing the source chamber 3, the fixing plug 22 may be made of a flexible material such as rubber, and the fixing plug 22 further positions the source chamber 3 fixed in the tank body 1, so as to prevent the fixing plug 22 from jumping in the vertical direction.

The implementation principle of the portable radioactive source storage device in the embodiment of the application is as follows: the radioactive source is loaded into the source chamber 3, the embedded handle 32 on the source chamber 3 is pulled, the convex strip 31 on the source chamber 3 is inserted into the positioning channel 121 and slides downwards, so that the source chamber 3 enters the inner shell 12, and then the box cover 2 is closed and locked by the lock 21. When the tank 1 is impacted by external force such as collision, the piston rod and the spring 43 in the elastic protection assembly 4 are compressed, absorbing the pressure from the outside and weakening the pressure transmission toward the source chamber 3. When the case lid 2 rotates to open, the switch 621 is pressed by the plectrum 622, the control circuit is conducted, the light emitting diode 61 starts to flash, and the personnel is warned that the case lid 2 is opened, so that the radiation risk exists. When the box cover 2 is closed, the switch 621 is no longer pressed by the poke sheet 622, the control circuit is not conducted, and the light emitting diode 61 is turned off.

The above examples are only used to illustrate the technical solutions of the present application, and do not limit the scope of the present application. It is to be understood that the embodiments described are only some of the embodiments of the present application and not all of them. Although the present application has been described in detail with reference to the above embodiments, those skilled in the art may still make various combinations, additions, deletions or other modifications of the features of the embodiments of the present application without conflict, and thus, different technical solutions that do not substantially depart from the spirit of the present application may be obtained.

Claims

1. A portable radiation source storage device, characterized by: the device comprises a box body (1), a box cover (2) and a source cabin (3), wherein one end of the box cover (2) is hinged with the box body (1), and the other end of the box cover (2) is connected with the box body (1) through a lockset (21); the box (1) comprises an outer shell (11) and an inner shell (12), wherein the inner shell (12) is abutted to the source cabin (3), an elastic protection component (4) used for absorbing and converting external pressure is arranged between the outer shell (11) and the inner shell (12), and a positioning component (5) used for fixing the source cabin (3) is arranged on the inner shell (12).

2. A portable radiation source storage device according to claim 1, wherein: elasticity protection component (4) include pneumatic cylinder (41), the base of pneumatic cylinder (41) is fixed on shell (11) inner wall, the piston rod of pneumatic cylinder (41) is connected with loading board (42), be provided with spring (43) on loading board (42), spring (43) one end and loading board (42) fixed connection, the other end and inner shell (12) fixed connection of spring (43).

3. A portable radiation source storage device according to claim 1, wherein: locating component (5) include a plurality of positioning channel ways (121), positioning channel way (121) are seted up on inner shell (12), be provided with sand grip (31) on source cabin (3), sand grip (31) are inlayed and are located in the channel way.

4. A portable radiation source storage device according to claim 1, wherein: be provided with warning mechanism (6) that are used for suggestion case lid (2) to open on box (1), warning mechanism (6) include emitting diode (61) and on-off control subassembly (62), on-off control subassembly (62) include switch (621), emitting diode (61) and the equal fixed connection of switch (621) are on box (1), emitting diode (61) and switch (621) pass through control circuit and connect.

5. The portable radiation source storage device of claim 4, wherein: the control circuit comprises a protective resistor R0, one end of which is grounded;

6. The portable radiation source storage device of claim 5, wherein: the switch control assembly (62) further comprises a shifting sheet (622) and a fixing plate (623), one end of the shifting sheet (622) is hinged to the box cover (2), and the other end of the shifting sheet (622) is abutted to the switch (621); the fixing plate (623) is fixedly connected with the box cover (2), and a second spring (624) is arranged between the shifting sheet (622) and the fixing plate (623).

7. A portable radiation source storage device according to claim 1, wherein: and the radiation-proof layers (7) are embedded in the inner shell (12) and the box cover (2).

8. A portable radiation source storage device according to claim 1, wherein: the box cover (2) is connected with a fixed plug (22), and the fixed plug (22) is abutted to the source cabin (3).

9. A portable radiation source storage device according to any one of claims 1 to 8, wherein: an embedded handle (32) is arranged on the source cabin (3).