CN111846543A

CN111846543A - Sample container assembly

Info

Publication number: CN111846543A
Application number: CN202010700678.6A
Authority: CN
Inventors: 曹智; 矫海洋; 袁中伟; 何辉; 晏太红
Original assignee: China Institute of Atomic of Energy
Current assignee: China Institute of Atomic of Energy
Priority date: 2020-07-20
Filing date: 2020-07-20
Publication date: 2020-10-30

Abstract

The present invention discloses a sample container assembly comprising: the sample containers can be placed in the middle container, each sample container is used for containing a radioactive sample, each sample container comprises a container body and a container cover body, the container body is provided with a sample containing cavity, the container cover body is arranged on the container body to seal the sample containing cavity, the container bodies of the sample containers can be spliced together and form an integral structure after being spliced, and the cross section of at least part of the position of the integral structure is matched with the shape and the size of the cross section of the inner cavity of the middle container corresponding to the position. The technical scheme of the invention can realize simultaneous transportation of multiple radioactive samples by one-time transportation, and ensure that the volume of the sample accommodating cavity of each sample container is maximum, thereby accommodating more radioactive samples.

Description

Sample container assembly

Technical Field

The invention relates to the technical field of material transfer equipment, in particular to a sample container assembly.

Background

In the prior art, some materials (such as radioactive materials) require extremely high tightness during transportation, and are generally transported by using a double-cover sealed transportation device (PADIRAC) to realize road transportation or in-plant transportation of the materials. When the double-cover sealed transfer device is used for transferring materials, the materials need to be directly placed in a transfer container (such as a DPTE270 container) matched with the double-cover sealed transfer device.

When the double-cover sealing transfer device is used for transferring materials, only one material can be transferred at a time. If the transported material has special requirements, the transport container needs to be replaced by a new transport container in order to avoid the pollution caused by the residual material before. If a plurality of material samples with special requirements need to be transported, the material samples can only be transported for a plurality of times respectively, and a plurality of transport containers need to be replaced.

However, the whole set of equipment of the double-cover sealing transfer device is heavy, and loading and unloading work needs to be completed by matching with a crane and a forklift every time of transportation. In addition, the replacement of the transfer container requires professional operation, the operation is complex and time-consuming, and the transfer container has high manufacturing cost and long order cycle. Therefore, the time cost and economic cost of transporting a plurality of material samples with special requirements are very high.

Disclosure of Invention

In view of the above, the present invention has been developed to provide a sample container assembly that overcomes, or at least partially solves, the above-mentioned problems.

To achieve the above object, the present invention provides a sample container assembly comprising: the sample containers can be placed in the middle container, each sample container is used for containing a radioactive sample, each sample container comprises a container body and a container cover body, the container body is provided with a sample containing cavity, the container cover body is arranged on the container body to seal the sample containing cavity, the container bodies of the sample containers can be spliced together and form an integral structure after being spliced, and the cross section of at least part of the position of the integral structure is matched with the shape and the size of the cross section of the inner cavity of the middle container corresponding to the position.

Furthermore, the plurality of container bodies are arranged along the circumferential direction, the cross section of at least part of the positions of each container body is in a fan shape, and the cross section of the integral structure formed by splicing the plurality of container bodies, which corresponds to the position, is in a complete circle.

Further, the plurality of container bodies have the same structure.

Further, the container cover body is rotatably connected to the container body, and the rotating shaft of the container cover body is parallel to the central line of the container body.

Further, the container cover body is in threaded connection with the container body.

Further, the container body is including holding portion, uncovered portion and connecting the transition portion between holding portion and the uncovered portion, and uncovered portion's cross section is circular, and the container lid passes through threaded connection on uncovered portion, and a plurality of container body amalgamation back, the adjacent container body hold the portion laminating of portion.

Further, the cross section of the containing part is in a fan shape.

Further, the intermediate container is a transfer container matched with the transfer device or a transition container positioned in the transfer container matched with the transfer device.

Further, each sample container has a first gripping portion, and the robot grips the first gripping portion to take out or load the sample container from or into the intermediate container.

Further, the first gripping portion is located on the container top.

Further, the container cover body is in threaded connection with the container main body, the switch tool is provided with a clamping part, the container cover body is provided with a clamping matching part, and after the clamping part and the clamping matching part are clamped, the manipulator clamps the switch operation control part and controls the switch tool to rotate in a plane vertical to a rotating shaft of the container cover body so as to unscrew or screw the container cover body.

Further, the switch tool comprises a tool main body and a clamping groove arranged on the tool main body, and the clamping part comprises a clamping groove.

Furthermore, the groove wall of the clamping groove is provided with a guide inclined plane corresponding to the opening position of the clamping groove.

Further, the switch tool includes a tool main body, and the retaining portion and the switch operation control portion are located at opposite ends of the tool main body.

Further, the switch tool comprises a tool body, the tool body comprises a rod body, a plurality of first limiting blocking pieces are arranged on the rod body, the first limiting blocking pieces are arranged at intervals along the extending direction of the rod body, the part, located between the adjacent first limiting blocking pieces, of the rod body forms a matching rod section, and the switch operation control portion comprises at least one of the matching rod sections.

Further, the switch tool has a second grasping portion which the robot grips to move the switch tool.

Further, the switch tool includes a tool main body and a first cylinder provided on the tool main body, and the second grasping portion includes the first cylinder.

Furthermore, a plurality of first clamping planes are arranged on the circumferential side wall of the first column body, and at least two of the first clamping planes are parallel to each other.

Further, the tool main body comprises a rod body and a plate body, the first cylinder is connected between the plate body and the rod body, and the center line of the first cylinder is parallel to the center line of the rod body.

Further, the sample container also comprises a second column body, the second column body is arranged on the container cover body, and the central line of the second column body is parallel to the central line of the container main body.

Furthermore, a second limiting stopper is arranged on the second column body, the sample container is provided with a first grabbing part, and the first grabbing part comprises a part of the second column body between the second limiting stopper and the container cover body.

Further, the sample container further comprises a sealing structure, and the sealing structure is arranged between the container main body and the container cover body.

Further, the sealing structure includes a sealing ring.

Furthermore, the auxiliary fixing structure is provided with a positioning part and a holding part which are arranged at intervals, the positioning part is matched with the container body to limit the container body to rotate along the circumferential direction relative to the auxiliary fixing structure, and the manipulator clamps the holding part to fix the auxiliary fixing structure.

Further, the auxiliary fixing structure comprises a base, the positioning portion comprises a positioning groove arranged on the base, the shape and the size of the positioning groove are matched with at least one part of the container main body, and the part of the container main body is inserted into the positioning groove so as to limit circumferential rotation of the container main body relative to the auxiliary fixing structure.

Furthermore, the constant head tank is a plurality of, and a plurality of constant head tanks set up along the container main part interval.

Further, supplementary fixed knot constructs including the base and sets up the third cylinder on the base, and the portion of gripping includes the third cylinder.

Furthermore, the center line of the third cylinder is perpendicular to the base, a third limiting stopper is arranged on the third cylinder, and the manipulator is clamped on the part of the third cylinder between the third limiting stopper and the base.

Furthermore, a plurality of third clamping planes are arranged on the circumferential side wall of the third column body, and at least two of the third clamping planes are parallel to each other.

By applying the technical scheme of the invention, the plurality of sample containers are arranged in the intermediate container, and the plurality of radioactive samples are respectively placed in the sample accommodating cavities of the container main bodies of the plurality of sample containers, so that the transfer of the plurality of radioactive samples can be simultaneously completed by one-time transportation. Meanwhile, the radioactive sample can be effectively prevented from directly contacting the middle container to stain the inner wall of the middle container, when the container directly contacting the material sample needs to be replaced, the sample container can be directly replaced, the operation is more convenient, and the sample container is simple to process, low in manufacturing cost, short in processing period and better in economical efficiency.

In addition, at least part of the integral structure formed by splicing the container bodies of the plurality of sample containers can occupy the inner cavity of the corresponding part of the middle container, so that the inner space of the middle container can be utilized to the maximum extent, and the volume of the sample accommodating cavity of each sample container can be ensured to be the maximum, thereby being capable of accommodating more radioactive samples.

Drawings

Other objects and advantages of the present invention will become apparent from the following description of the invention which refers to the accompanying drawings, and may assist in a comprehensive understanding of the invention.

FIG. 1 is a schematic cross-sectional view of a sample container assembly according to one embodiment of the present invention;

FIG. 2 is a schematic cross-sectional view of another location of the sample container of FIG. 1;

FIG. 3 is a schematic diagram of the construction of the switch tool of the sample container assembly of FIG. 1;

FIG. 4 is a schematic view of another angular configuration of the switch tool of FIG. 3;

FIG. 5 is a schematic structural view of a secondary securing structure of the sample container assembly of FIG. 1; and

fig. 6 is a structural view of another angle of the auxiliary fixing structure of fig. 5.

It is noted that the drawings are not necessarily to scale and are merely illustrative in nature and not intended to obscure the reader.

Description of reference numerals:

11. a container body; 111. a sample receiving chamber; 112. a containing part; 113. an open portion; 114. a transition section; 12. a container lid; 13. a second cylinder; 14. a second limit stopper; 15. a seal ring; 21. a tool body; 211. a rod body; 2111. fitting the rod section; 212. a plate body; 22. a card slot; 221. a guide slope; 23. a first limit stopper; 24. a first column; 31. a base; 311. a first base; 312. a second base; 313. supporting a tube; 32. positioning a groove; 33. a third column; 34. and a third limit stopper.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention. It should be apparent that the described embodiment is one embodiment of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the invention without any inventive step, are within the scope of protection of the invention.

It is to be noted that technical terms or scientific terms used herein should have the ordinary meaning as understood by those having ordinary skill in the art to which the present invention belongs, unless otherwise defined. If the description "first", "second", etc. is referred to throughout, the description of "first", "second", etc. is used only for distinguishing similar objects, and is not to be construed as indicating or implying a relative importance, order or number of technical features indicated, it being understood that the data described in "first", "second", etc. may be interchanged where appropriate. If "and/or" is presented throughout, it is meant to include three juxtapositions, exemplified by "A and/or B" and including either scheme A, or scheme B, or schemes in which both A and B are satisfied. Furthermore, spatially relative terms, such as "above," "below," "top," "bottom," and the like, may be used herein for ease of description to describe one element or feature's spatial relationship to another element or feature as illustrated in the figures, and should be understood to encompass different orientations in use or operation in addition to the orientation depicted in the figures.

The sample container assembly of this embodiment includes a plurality of sample containers that may be placed in an intermediate container, each sample container for holding a radioactive sample.

As shown in fig. 1 and 2, each sample container includes a container body 11 and a container lid 12. The container body 11 has a sample-receiving chamber 111. The container top 12 is provided on the container body 11 to close the sample-accommodating chamber 111. The container bodies 11 of the plurality of sample containers can be spliced together to form an integral structure, and the cross section of at least part of the integral structure is matched with the shape and the size of the cross section of the inner cavity of the middle container corresponding to the position.

By applying the sample container assembly of the present embodiment, a plurality of sample containers are disposed in the intermediate container, and a plurality of radioactive samples (the same kind or different kinds) are respectively placed in the sample receiving cavities 111 of the container main bodies 11 of the plurality of sample containers, so that the transfer of the plurality of radioactive samples can be simultaneously completed by one-time transportation. Meanwhile, the radioactive sample can be effectively prevented from directly contacting the middle container to stain the inner wall of the middle container, when the container directly contacting the material sample needs to be replaced, the sample container can be directly replaced, the operation is more convenient, and the sample container is simple to process, low in manufacturing cost, short in processing period and better in economical efficiency.

In addition, at least part of the integral structure formed by splicing the container main bodies 11 of the plurality of sample containers can occupy the inner cavity of the corresponding part of the intermediate container, so that the inner space of the intermediate container can be utilized to the maximum extent, and the volume of the sample accommodating cavity 111 of each sample container can be ensured to be the maximum, so that more radioactive samples can be accommodated.

In this embodiment, the intermediate container is a transfer container associated with the transfer device. Wherein, the transfer device is a double-cover sealed transfer device (PADIRAC for short), the transfer container is a DPTE270 container, and a plurality of sample containers are directly placed in the DPTE270 container after being spliced together. Of course, the application scenario of the sample container assembly is not limited to this, and in other embodiments, a plurality of sample containers of the sample container assembly may be placed in other transfer containers associated with other types of transfer devices; alternatively, a transition container is additionally provided in the transport container, and a plurality of sample containers may be directly placed in the transition container.

As shown in fig. 2, in the sample container assembly of the present embodiment, a plurality of container bodies 11 are arranged in the circumferential direction, and the cross section of at least a part of each container body 11 has a fan shape. The cross section of the integral structure formed by splicing the plurality of container bodies 11 corresponding to the position is in a complete circle shape. The intermediate container is generally cylindrical, and the shape of the plurality of container bodies 11 is set so that the plurality of container bodies 11 can be more adapted to the shape of the intermediate container after being spliced, thereby being more beneficial to the utilization of the inner cavity space of the intermediate container. In the present embodiment, the number of the sample containers is three, the container bodies 11 of the three sample containers have the same structure, and the sector angle of the sector cross section of each container body 11 is 120 °. Above-mentioned three sample container is used for holding three kinds of radioactive sample, sets up the structure of three's container subject 11 to the same, is convenient for batch processing production more.

It should be noted that the number of the sample containers is not limited to this, and in other embodiments, the number of the sample containers may be selected according to actual needs, for example, the number of the sample containers may be two, four, and the like. The container bodies 11 of the plurality of sample containers are not limited to the same structure, and in other embodiments, the plurality of container bodies may have different structures, for example, the plurality of container bodies may have fan shapes with different angles, or the plurality of container bodies may have irregular shapes. The arrangement of the container bodies 11 of the plurality of sample containers is not limited thereto, and in other embodiments, the container bodies of the plurality of sample containers may be arranged in other manners, but may form a complete pattern (the pattern has the same shape as the inner cavity of the middle container, and may be circular, rectangular, etc.) after being spliced together, for example, when being spliced, a part of the plurality of container bodies is located in the middle, and another part is located at the periphery.

As shown in fig. 1, in the sample container assembly of the present embodiment, the container cover 12 is rotatably connected to the container body 11, and the rotation axis of the container cover 12 is parallel to the center line of the container body 11. In the present embodiment, the rotation axis of the container cover 12 coincides with the center line of the container body 11, the container cover 12 is screwed to the container body 11, the connection between the container cover 12 and the container body 11 is more reliable, and the container cover 12 is also easily opened or closed.

It should be noted that the connection mode between the container cover 12 and the container body 11 is not limited to the threaded connection, and in other embodiments, other connection modes may be adopted between the container cover and the container body, for example, the container cover is directly covered on the container body and is clamped with the container body; or the container cover body is rotatably connected to the container main body, the rotating shaft of the container cover body is vertical to the central line of the container main body, namely the container cover body is in a structure similar to a door, and the container cover body and the container main body are fixed through a locking piece; or the container cover body is rotatably connected to the container body, the rotating shaft of the container cover body is parallel to the central line of the container body and has a certain distance with the central line of the container body, and when the container cover body rotates along the rotating shaft, the container cover body moves in a plane above the opening of the container body.

As shown in fig. 1 and 2, in the sample container assembly of the present embodiment, the container body 11 includes a containing portion 112, an open portion 113, and a transition portion 114 connected between the containing portion 112 and the open portion 113. The cross-section of the open portion 113 is rounded to further facilitate the threaded attachment of the container top 12 to the open portion 113. The cross section of the containing part 112 is fan-shaped. After the three container bodies 11 are spliced, the planes of the containing parts 112 of the adjacent container bodies 11 corresponding to the fan-shaped radiuses are attached to each other, so that the inner space of the containing parts 112 is as large as possible, and more radioactive samples are contained. The transition portion 114 serves to connect the opening portion 113 and the containing portion 112 having different shapes. Therefore, the structure of the container body 11 is convenient for connecting the container cover 12 while ensuring the maximum volume, and the practicability is stronger.

As shown in fig. 1, in the sample container assembly of this embodiment, the sample container further includes a sealing structure, and the sealing structure is disposed between the container main body 11 and the container cover body 12, so as to ensure the air tightness of the sample container, and further can be used for containing radioactive material samples that are not in a fixed form, cannot be directly grasped by a manipulator, such as liquid, particles, and the like.

In the present embodiment, the sealing structure includes a seal ring 15. The outer wall of the opening part 113 of the container body 11 in the circumferential direction is provided with an external thread, the inner wall of the container cover 12 in the circumferential direction is provided with an internal thread, and the container cover 12 is connected with the opening part 113 of the container body 11 through the matching of the internal thread and the external thread. The seal ring 15 is disposed between the circumferential inner wall of the container lid 12 and the circumferential outer wall of the open portion 113, and is located below the internal and external threads. The material of the seal ring 15 is radiation-resistant material, preferably an ethylene propylene diene monomer seal ring.

Of course, the position of the seal ring 15 is not limited to this, and in another embodiment not shown in the drawings, the seal ring may be provided at another position capable of performing a sealing function. The material of the seal ring 15 is not limited to this, and in other embodiments, it may be another radiation-resistant material. The specific form of the seal structure is not limited to the seal ring, and other structures capable of sealing may be used in other embodiments.

As shown in fig. 1, in the sample container assembly of the present embodiment, each sample container has a first grasping portion convenient for the operation of the manipulator, and the manipulator grasps the first grasping portion to transfer the sample container (to take out from or load into the intermediate container), so as to avoid the manipulator from directly contacting the radioactive sample, thereby preventing a large amount of radioactive material remaining on the manipulator from affecting the subsequent maintenance and repair thereof. In this embodiment, the first gripping location is located on the container top 12. Because need carry out the amalgamation between a plurality of container body 11, set up first portion of snatching then more conveniently arrange on container lid 12, can not influence the amalgamation between a plurality of container body 11. Of course, the position of the first grasping portion is not limited thereto, and the first grasping portion may be provided on the container body in other embodiments.

As shown in fig. 1, in the sample container assembly of the present embodiment, the sample container further includes a second column 13. The second post 13 is provided on the container top 12. The center line of the second column 13 is parallel to the center line of the container main body 11. The second cylinder 13 is provided with a second limit stopper 14. The first grasping portion includes the portion of the second post 13 between the second limit stop 14 and the container top 12. After the manipulator grasps the part of the second column body 13, the second limit stopper 14 can limit the manipulator, so that the manipulator is prevented from slipping during clamping, and the clamping and the operation of the manipulator are more convenient. In this embodiment, the second limit stopper 14 is a circular stopper disposed at the top of the second cylinder 13. The second column 13 is a square column with a rectangular cross section. Specifically, four second clamping planes are arranged on the circumferential side wall of the second column body 13, and every two of the four second clamping planes are parallel to each other. The second clamping plane is convenient for clamping by the manipulator.

Of course, the specific structure of the second limit stopper 14 is not limited to this, and in other embodiments not shown in the drawings, the second limit stopper may also be other limit structures, for example, a limit stopper or an annular limit stopper disposed on the circumferential sidewall of the second cylinder. The number of second clamping planes is also not limited thereto, and in other embodiments, the number of second clamping planes may be selected on a case-by-case basis, but to ensure that at least two of the plurality of second clamping planes are parallel to each other. In addition, the specific form of the first grasping portion is not limited to this, and in other embodiments not shown in the drawings, the first grasping portion may also be other structures that can be grasped by a robot arm, for example, a cylinder with a card slot; alternatively, it may be a handle; or, a concave part is arranged on the top of the container cover body, and a rod body which can be grasped by a manipulator is arranged on the concave part.

As shown in fig. 3 and 4, in the sample container assembly of the present embodiment, an opening and closing means is further included. The opening and closing tool is used to open or close the container top 12. The switch tool has a switch operation control unit. The manipulator clamps the switch operation control part to control the switch tool to perform the on or off operation. The opening and closing tool is controlled by a manipulator to open or close the container cover 12, and the opening and closing tool is designed to be a tool matched with the container cover 12, so that the operation is more convenient compared with the case that the manipulator directly opens or closes the container cover 12.

In this embodiment, the double-lid sealed transfer device can be docked with the hot room, and when the two are docked, the hot room screen door is connected with the lid of the transfer container (DPTE270 container). The cover of the transfer container is opened simultaneously with the opening of the hot box door. The first gripping part of the sample container is directly gripped by a manipulator in the hot cell, so that the sample container is taken out of the transfer container into the hot cell. Thereafter, the opening/closing operation control part of the opening/closing tool is gripped by the manipulator, whereby the opening/closing tool is controlled to open the container lid 12 of the sample container, and the radioactive sample can be subjected to the next operation. The above is the unloading process of the radioactive sample, and the loading process of the radioactive sample is the reverse, namely, the container cover body 12 of the sample container is closed by the opening and closing tool controlled by the manipulator, and then the sample container is loaded into the transfer container by the manipulator.

In addition, in other embodiments, if multiple sample containers are placed in the interim container, the interim container and the sample containers together act as a double seal for the radioactive sample. In this case, the transition container is first taken out of the transfer container into the hot chamber by the manipulator, the transition container is opened, and then each sample container is taken out of the transition container by the manipulator. Since the process of transferring the transition container from the transfer container to the hot chamber and the process of removing the sample container are similar to those described above, they will not be described in detail.

As shown in fig. 1, 3 and 4, in the sample container assembly of the present embodiment, the opening and closing tool has a retaining portion, and the container cover 12 has a retaining engagement portion. After the retaining portion and the retaining engagement portion are retained, the manipulator retains the switch operation control portion and controls the switch tool to rotate in a plane perpendicular to the axis of rotation of the container cover 12 to unscrew or tighten the container cover 12. The form switch of the switch tool is more convenient to rotate through the matching of the clamping part and the clamping matching part, and the manipulator controls the switch tool to rotate, so that the operation is easier.

As shown in fig. 1, 3 and 4, in the sample container assembly of the present embodiment, the switch tool includes a tool body 21, and the tool body 21 includes a rod body 211 and a plate body 212. The switch tool also includes a card slot 22 disposed on the plate body 212. The retaining portion includes the retaining groove 22. The catch fitting comprises a second post 13. The groove width of the clamping groove 22 is matched with the distance between two parallel second clamping planes of the second column body 13, and the groove walls on two sides of the clamping groove 22 are clamped on the two second clamping planes of the second column body 13 respectively, so that the second column body 13 is clamped. The locking of the locking groove 22 with the second clamping plane enables the opening and closing tool to rotate the container lid 12. Specifically, when using the switch tool, fix the container body 11 first, block the draw-in groove 22 on two second clamping planes of the second column 13 again, the manipulator grasps the switch operation control part and rotates the switch tool to drive the container cover 12 to rotate.

In this embodiment, the plate body 212 is integrally bent into a U shape, and the middle space of the bent plate body 212 forms the slot 22. The groove wall of the slot 22 has a guiding slope 221 corresponding to the opening. The guide slope 221 can play a guiding role in the process of clamping the card slot 22 to the two second clamping planes of the second cylinder 13.

It should be noted that the specific structure of the card slot 22 is not limited to this, and in other embodiments not shown in the drawings, the card slot may also be designed according to the specific structure of the card-holding matching portion. In addition, the clamping portion is not limited to the clamping groove 22, and the clamping matching portion is not limited to the second cylinder 13, and in other embodiments not shown in the drawings, the clamping portion and the clamping matching portion may also include other structures capable of realizing clamping, for example, the clamping portion is a structure similar to a wrench, and the clamping matching portion is a rod body, a handle or a groove body matched with the wrench.

As shown in fig. 3 and 4, in the sample container assembly of this embodiment, two first limiting stoppers 23 are disposed on the rod 211, and the two first limiting stoppers 23 are spaced apart from each other along the extending direction of the rod 211. The portion of the rod body 211 located between the two first limit stoppers 23 forms a mating rod segment 2111. The switch operation control portion includes the engaging bar portion 2111, and the robot grips the engaging bar portion 2111 to control the operation of the switch tool. Above-mentioned cooperation pole section 2111 is convenient for the manipulator centre gripping more to first spacing fender piece 23 can carry on spacingly to the manipulator, prevents the manipulator slippage when the centre gripping, makes things convenient for manipulator centre gripping and operation more. In this embodiment, the first limiting stopper 23 is an annular stopper.

It should be noted that the number of the first limit stoppers 23 is not limited to this, and in other embodiments not shown in the figures, the number of the first limit stoppers may be three or more, in which case, an engaging rod segment is formed between every two adjacent first limit stoppers, and the manipulator may selectively clamp one of the engaging rod segments. The specific structure of the first limiting stopper 23 is not limited to an annular stopper, and in other embodiments, the first limiting stopper may also be a limiting block, a limiting bump, or the like. The switching operation control unit is not limited to this, and in another embodiment not shown, may be configured to be gripped by a robot hand and to control the operation of the switching tool.

As shown in fig. 3 and 4, in the sample container assembly of the present embodiment, the catch portion (card slot 22) and the switch operation control portion (engaging lever section 2111) are located at opposite ends of the tool main body 21. The distance between the clamping part and the switch operation control part forms a force arm when the switch tool is matched with the second column body 13, the length of the force arm is required to be more than 250mm, the opening or closing operation (screwing or unscrewing the container cover body 12) of the sample container by the switch tool can be ensured by a manipulator, and the switch tool is not too long and does not hinder the operation of the manipulator.

As shown in fig. 3 and 4, in the sample container assembly of the present embodiment, the opening and closing tool has a second grasping portion, and the manipulator grasps the second grasping portion to move the opening and closing tool. In the present embodiment, the switch tool includes a first cylinder 24 provided on the tool main body 21. The second capture portion includes a first cylinder 24. Specifically, the first cylinder 24 is connected between the plate body 212 and the rod body 211, and a center line of the first cylinder 24 is parallel to a center line of the rod body 211. The above arrangement enables the gripping position of the manipulator to be close to the plate body 212, which facilitates the accurate movement of the card slot 22 on the plate body 212 to the second column 13. Further, the first column 24 is a square column having a rectangular cross section. Specifically, four first clamping planes are arranged on the circumferential side wall of the first column 24, and every two of the four first clamping planes are parallel to each other. Above-mentioned first centre gripping plane is convenient for manipulator centre gripping more.

The position of the second grasping portion is not limited to this, and in another embodiment not shown in the drawings, the second grasping portion may be provided on the rod body or the plate body. Further, the specific form of the second grasping portion is not limited to this, and in other embodiments not shown in the drawings, the second grasping portion may have another structure that can be grasped by a robot arm, for example, a structure similar to a handle. In addition, the number of first clamping planes is not limited thereto, and in other embodiments, the number of first clamping planes may be selected on a case-by-case basis, but at least two of the plurality of first clamping planes are ensured to be parallel to each other.

As shown in fig. 5 and 6, in the sample container assembly of the present embodiment, the sample container assembly further includes an auxiliary fixing structure. The auxiliary fixing structure serves to fix the container body 11 when the opening and closing tool opens or closes the container top 12, which further facilitates the operation of the opening and closing tool. Of course, in other embodiments, an auxiliary fixing structure may not be additionally provided, and some easily-grabbed structures on the container body are directly grabbed by the manipulator, so that the container body can be fixed.

In this embodiment, the auxiliary fixing structure has a positioning portion and a holding portion that are disposed at an interval. The positioning portion cooperates with the container body 11 to restrict the container body 11 from rotating in the circumferential direction relative to the auxiliary fixing structure. The manipulator grips the grip portion to fix the auxiliary fixing structure. The auxiliary fixing structure can fix the container body 11 with the aid of the robot and facilitate the operation of the robot.

As shown in fig. 5 and 6, in the sample container assembly of the present embodiment, the auxiliary fixing structure includes a base 31. The positioning portion includes a positioning groove 32 provided on the base 31. The detent 32 is shaped and sized to fit at least a portion of the container body 11. In the present embodiment, the positioning groove 32 is shaped and sized to fit the containing portion 112 of the container body 11, and has a fan shape. The size of the positioning groove 32 is slightly larger than that of the containing portion 112. When the sample container is placed on the auxiliary fixing structure, the containing portion 112 is inserted into the positioning groove 32 in alignment to restrict circumferential rotation of the container body 11 with respect to the auxiliary fixing structure. At this time, a certain gap is formed between the positioning groove 32 and the outer wall of the accommodating part 112, which facilitates the assembly therebetween.

It should be noted that the shape of the positioning groove 32 is not limited to this, and in other embodiments not shown in the drawings, the positioning groove needs to be designed according to the shape of the containing portion of the container body, but it needs to be ensured that the positioning groove and the containing portion can be circumferentially limited by the shape. One of the exceptions is that if the shape of the container main body's portion of holding is circular, even if set the constant head tank also to circular, also can't carry out circumference spacing through the shape between the two, then need additionally to set up limit structure this moment.

In addition, the limiting manner of the matching between the containing part 112 of the container body 11 and the positioning groove 32 in the embodiment is simpler and more convenient. However, the specific position restricting method of the positioning portion and the container body 11 is not limited to this, and in another embodiment not shown in the drawings, the circumferential positioning may be achieved by another structure. For example, the positioning part is a positioning convex part, and the container main body is provided with a positioning groove matched with the positioning convex part; or the positioning part is a positioning groove, and a positioning convex part matched with the positioning groove is arranged on the container main body.

As shown in fig. 5 and 6, in the sample container assembly of the present embodiment, the auxiliary fixing structure includes a third cylinder 33, and the third cylinder 33 is disposed on the base 31. The grip portion includes a third post 33. The manipulator can hold the auxiliary fixing structure after clamping the third cylinder 33. The center line of the third cylinder 33 is perpendicular to the base 31, a third limit stopper 34 is arranged on the third cylinder 33, and the manipulator is clamped on the part of the third cylinder 33 between the third limit stopper 34 and the base 31. The third limiting stopper 34 can limit the manipulator, so that the manipulator is prevented from slipping during clamping, and the clamping and the operation of the manipulator are more convenient. In this embodiment, the third limit stopper 34 is a stopper disposed at the top of the third column 33. The third column 33 is a square column having a rectangular cross section. Specifically, four third clamping planes are arranged on the circumferential side wall of the third column 33, and every two of the four third clamping planes are parallel to each other. The third clamping plane is more convenient for clamping by the manipulator.

It should be noted that the specific structure of the third limiting stopper 34 is not limited to this, and in other embodiments not shown in the drawings, the third limiting stopper may also be other limiting structures, for example, a limiting block or an annular limiting plate disposed on the circumferential side wall of the third cylinder. The number of third clamping planes is also not limited thereto, and in other embodiments, the number of third clamping planes may be selected on a case-by-case basis, but to ensure that at least two of the plurality of third clamping planes are parallel to each other. The specific form of the grip portion is not limited to this, and in another embodiment not shown in the figure, the grip portion may have another structure that can be gripped by a robot hand.

As shown in fig. 5 and 6, in the sample container assembly of the present embodiment, the base 31 includes a first base 311 and a second base 312 which are spaced apart in the vertical direction, that is, the base 31 has a double-layer structure. Two support pipes 313 are connected between the first base 311 and the second base 312 and are located at one side of the first base 311 and the second base 312. The third column 33 is disposed on the other side of the first base 311 and the second base 312, and the top of the third column 33 extends upward through the first base 311. The robot is clamped on the portion of the third cylinder 33 located between the third limit stop 34 and the first base 311. In this embodiment, there are two positioning slots 32, and both positioning slots 32 are fan-shaped, and the two positioning slots 32 are respectively disposed on the first base 311 and the second base 312 so as to be spaced apart from each other along the container body 11. The holding portions 112 of the container body 11 are simultaneously inserted into the two positioning grooves 32, so that the sample container is prevented from being toppled. Of course, the specific number of the positioning grooves 32 is not limited thereto, and in other embodiments not shown in the drawings, the positioning grooves may be provided in one or more than three.

In the sample container assembly of the present embodiment, since the maximum load capacity of the DPTE270 container is 25kg, in order to hold more material samples, fully utilize the space, not exceed the maximum load capacity of the DPTE270 container, and the sample container can be transferred by the hot chamber transport trolley, the sample container has the dimensions of height not exceeding 280mm, radius of the container body 11 not exceeding 108mm, and wall thickness less than 1.5 mm. In order to avoid the radioactive materials remaining on the inner wall of the sample container, the inner wall of the sample container is set to be as smooth as possible, and the roughness of the polished sample container is less than 3.2 um.

In addition, in order to prevent the sample container assembly from being corroded by acid gas in the hot chamber, the materials of the sample container, the switch tool and the auxiliary fixing structure are selected to be corrosion-resistant materials. In this embodiment, the sample container, the switch tool and the auxiliary fixing structure are made of stainless steel 316L. Of course, in other embodiments, the material of the sample container, the switch tool and the auxiliary fixing structure may be selected from other corrosion-resistant materials, such as titanium.

The double-cover sealed transfer device (PADIRAC for short) is used for transferring radioactive samples, three sample containers filled with the same or different radioactive samples can be directly placed in the DPTE270 container in the transfer process, the structures of the DPTE270 container and the double-cover sealed transfer device are not changed, the safety performance of the double-cover sealed transfer device is not influenced, and the road transportation requirements are met.

The loading process will be described in detail by taking the radioactive solution A, radioactive powder B and radioactive solid particles C as examples:

the second column 13 of the sample container is grasped by the hand and the sample container is placed in the auxiliary fixing structure, so that the holding portion 112 of the container body 11 of the sample container is inserted into the positioning groove 32 of the auxiliary fixing structure. The clamping slot 22 of the opening and closing tool is clamped to the second cylinder 13 of the sample container by grabbing the first cylinder 24 of the opening and closing tool using a robot. One robot grasps the third post 33 of the secondary securing structure to secure the secondary securing structure, and the other robot grasps the location of the mating post segment 2111 of the switch tool and rotates the switch tool as a whole to rotate the container top 12 to open the container top 12. The radioactive solution a is put into the container body 11 of the sample container, and the above-described operation is repeated in reverse to close the container lid 12 and seal the sample container. Repeating the above process to respectively fill the radioactive powder B and the radioactive solid particles C into another two sample containers, and sealing the sample containers.

The double-cover sealed transfer device is butted with a hot chamber, a hot chamber shielding door is opened, three sample containers filled with radioactive solution A, radioactive powder B and radioactive solid particles C are placed in a DPTE270 container by using a manipulator, the hot chamber shielding door is closed, and the three radioactive samples are transferred to a specified position.

It should also be noted that, in the case of the embodiments of the present invention, features of the embodiments and examples may be combined with each other to obtain a new embodiment without conflict.

The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and the scope of the present invention is subject to the scope of the claims.

Claims

1. A sample container assembly, comprising:

the sample container comprises a container body (11) and a container cover body (12), wherein the container body (11) is provided with a sample accommodating cavity (111), the container cover body (12) is arranged on the container body (11) to close the sample accommodating cavity (111), the container bodies (11) of the sample containers can be spliced together to form a whole structure, and the cross section of at least one part of the whole structure is matched with the shape and the size of the cross section of the inner cavity of the intermediate container corresponding to the position.

2. The sample container assembly of claim 1, wherein:

the container bodies (11) are arranged along the circumferential direction, the cross section of at least part of the position of each container body (11) is in a fan shape, and the cross section of the integral structure formed by splicing the container bodies (11) corresponding to the position is in a complete circle.

3. The sample container assembly of claim 1, wherein:

the plurality of container bodies (11) have the same structure.

4. The sample container assembly of claim 1, wherein:

the container cover body (12) is rotatably connected to the container main body (11), and a rotating shaft of the container cover body (12) is parallel to a central line of the container main body (11).

5. The sample container assembly of claim 4, wherein:

the container cover body (12) is in threaded connection with the container body (11).

6. The sample container assembly of claim 5, wherein:

the container body (11) comprises a containing part (112), an open part (113) and a transition part (114) connected between the containing part (112) and the open part (113), the cross section of the open part (113) is circular, the container cover body (12) is connected to the open part (113) through threads, and after the container body (11) is spliced, the adjacent containing parts (112) of the container body (11) are jointed.

7. The sample container assembly of claim 6, wherein:

the cross section of the containing part (112) is fan-shaped.

8. The sample container assembly of claim 1, wherein:

The intermediate container is a transfer container matched with the transfer device or a transition container positioned in the transfer container matched with the transfer device.

9. The sample container assembly of claim 1, wherein:

each of the sample containers has a first gripping portion that is gripped by a robot arm to take out or load the sample container from or into the intermediate container.

10. The sample container assembly of claim 9, wherein:

the first gripping portion is located on the container top (12).

11. The sample container assembly of claim 1, further comprising:

and the opening and closing tool is used for opening or closing the container cover body (12), and is provided with an opening and closing operation control part, and the manipulator clamps the opening and closing operation control part to control the opening and closing tool to perform opening or closing operation.

12. The sample container assembly of claim 11, wherein:

the container cover body (12) is in threaded connection with the container main body (11), the switch tool is provided with a clamping part, the container cover body (12) is provided with a clamping matching part, and after the clamping part and the clamping matching part are clamped, the switch operation control part is clamped by a mechanical arm and the switch tool is controlled to rotate in a plane vertical to a rotating shaft of the container cover body (12) so as to unscrew or screw the container cover body (12).

13. The sample container assembly of claim 12, wherein:

the switch tool includes a tool main body (21) and a card slot (22) provided on the tool main body (21), and the card holding portion includes the card slot (22).

14. The sample container assembly of claim 13, wherein:

the groove wall of the clamping groove (22) is provided with a guide inclined surface (221) corresponding to the opening position.

15. The sample container assembly of claim 12, wherein:

the switch tool includes a tool main body (21), and the catching portion and the switch operation control portion are located at opposite ends of the tool main body (21).

16. The sample container assembly of claim 11, wherein:

the switch tool comprises a tool main body (21), wherein the tool main body (21) comprises a rod body (211), a plurality of first limiting blocking pieces (23) are arranged on the rod body (211), the first limiting blocking pieces (23) are arranged at intervals along the extending direction of the rod body (211), a matching rod section (2111) is formed by the part, located between the adjacent first limiting blocking pieces (23), of the rod body (211), and the switch operation control portion comprises at least one of the matching rod sections (2111).

17. The sample container assembly of claim 11, wherein:

the switch tool has a second grasping portion that is grasped by a robot arm to move the switch tool.

18. The sample container assembly of claim 17, wherein:

the switch tool includes a tool main body (21) and a first cylinder (24) provided on the tool main body (21), and the second grasping portion includes the first cylinder (24).

19. The sample container assembly of claim 18, wherein:

the circumferential side wall of the first column body (24) is provided with a plurality of first clamping planes, and at least two of the first clamping planes are parallel to each other.

20. The sample container assembly of claim 18, wherein:

the tool body (21) comprises a rod body (211) and a plate body (212), the first cylinder (24) is connected between the plate body (212) and the rod body (211), and the center line of the first cylinder (24) is parallel to the center line of the rod body (211).

21. The sample container assembly of claim 1, wherein:

the sample container further comprises a second column body (13), wherein the second column body (13) is arranged on the container cover body (12), and the central line of the second column body (13) is parallel to the central line of the container main body (11).

22. The sample container assembly of claim 21, further comprising:

a switch tool having a catch comprising a catch (22),

the container cover body (12) is provided with a clamping matching portion, the clamping matching portion comprises a second cylinder (13), a plurality of second clamping planes are arranged on the circumferential side wall of the second cylinder (13) and are parallel to each other, at least two of the second clamping planes are parallel to each other, and the groove walls on two sides of the clamping groove (22) are clamped on the second clamping planes of the second cylinder (13) which are parallel to each other.

23. The sample container assembly of claim 21, wherein:

the second limiting stopper (14) is arranged on the second column body (13), the sample container is provided with a first grabbing part, and the first grabbing part comprises a part of the second column body (13) located between the second limiting stopper (14) and the container cover body (12).

24. The sample container assembly of claim 1, wherein:

the sample container further comprises a sealing structure disposed between the container body (11) and the container lid (12).

25. The sample container assembly of claim 24, wherein:

The sealing structure comprises a sealing ring (15).

26. The sample container assembly of claim 11, further comprising:

auxiliary fixing structure for fixing the container body (11) when the opening and closing tool opens or closes the container top (12).

27. The sample container assembly of claim 26, wherein:

the auxiliary fixing structure is provided with positioning parts and holding parts which are arranged at intervals, the positioning parts are matched with the container main body (11) to limit the container main body (11) to rotate relative to the auxiliary fixing structure along the circumferential direction, and the holding parts are clamped by a manipulator to fix the auxiliary fixing structure.

28. The sample container assembly of claim 27, wherein:

the auxiliary fixing structure comprises a base (31), the positioning part comprises a positioning groove (32) arranged on the base (31), the shape and the size of the positioning groove (32) are matched with at least one part of the container main body (11), and the part of the container main body (11) is inserted into the positioning groove (32) so as to limit the circumferential rotation of the container main body (11) relative to the auxiliary fixing structure.

29. The sample container assembly of claim 28, wherein:

The locating slot (32) is a plurality of, and is a plurality of locating slot (32) are followed container body (11) interval sets up.

30. The sample container assembly of claim 27, wherein:

the auxiliary fixing structure comprises a base (31) and a third column (33) arranged on the base (31), and the holding part comprises the third column (33).

31. The sample container assembly of claim 30, wherein:

the center line of the third cylinder (33) is perpendicular to the base (31), a third limiting stopper (34) is arranged on the third cylinder (33), and the manipulator is clamped on the part of the third cylinder (33) between the third limiting stopper (34) and the base (31).

32. The sample container assembly of claim 30, wherein:

the circumferential side wall of the third column body (33) is provided with a plurality of third clamping planes, and at least two of the third clamping planes are parallel to each other.