阅读说明：本技术 一种屏蔽装置 (Shielding device ) 是由 李大梁 杨华 于 2019-02-03 设计创作，主要内容包括：本发明是关于一种屏蔽装置。所述屏蔽装置包括具有容纳腔的壳体以及填充在所述容纳腔内的屏蔽材料；所述壳体上设置有至少一个开口,所述壳体上的所述开口具有预设深度,所述屏蔽材料填充还填充在所述开口处。本发明实施例可以增加壳体壁的防辐射性能,进而可以提高在两个屏蔽装置连接处的防辐射性能,安全性较高。(The invention relates to a shielding device. The shielding device comprises a shell with a containing cavity and shielding materials filled in the containing cavity; the shell is provided with at least one opening, the opening in the shell has a preset depth, and the opening is filled with the shielding material. The embodiment of the invention can increase the radiation-proof performance of the shell wall, further improve the radiation-proof performance at the joint of the two shielding devices and has higher safety.)

1. A shielding device is characterized by comprising a shell with a containing cavity and shielding material filled in the containing cavity; the shell is provided with at least one opening, the opening in the shell has a preset depth, and the opening is filled with the shielding material.

2. The shielding apparatus of claim 1, wherein the shielding material is filled in the opening to a depth not less than one-half of a predetermined depth of the opening.

3. The shielding device of claim 1, wherein said predetermined depth is not less than 2 cm.

4. The shielding device of claim 1, wherein the housing has a plurality of openings disposed therein.

5. A shielding device according to claim 4, characterized in that at least two of said openings are distributed over different surfaces of said housing.

6. The shielding device of claim 5, wherein at least one opening is provided at each of an upper surface and a lower surface of the housing; or at least one opening is respectively arranged on the upper surface and the side surface of the shell; or at least one opening is respectively arranged on the lower surface and the side surface of the shell.

7. Shielding device according to claim 1, characterized in that the outer surface of the housing and/or the inner surface of the housing are recessed inside the housing cavity.

8. The shielding device of claim 1, wherein said housing has at least one opening therein, said shielding device further comprising a stop extending from said opening into said housing cavity.

9. The shielding device of claim 1, wherein the housing is made of cast iron and the shielding material is lead.

10. The shielding device of claim 1, wherein said housing is formed from a plurality of housing assemblies connected together.

Technical Field

The invention relates to the technical field of radioactive source installation, in particular to a shielding device.

Background

Gamma Knife (Gamma Knife) is the main treatment means of Stereotactic Radiosurgery, which selectively determines the normal tissue or the pathological tissue in the cranium as the target point according to the Stereotactic principle, and uses the Gamma ray generated by radioactive source such as cobalt-60 to focus and irradiate in large dose at one time, so that the Gamma ray generates focal necrosis or function change to achieve the purpose of treating diseases.

As the radioactive source has radioactive rays and great harm to human bodies, the radioactive source needs to be completely shielded in the processes of disassembly, assembly, transportation and the like. At present, different shielding devices are used, such as a source storage tank, a source guide tank, a lead plug taking tool and the like, and the extraction and the disassembly of the radioactive source are realized through the assembly of the shielding devices. The shielding devices generally comprise hollow shells, and lead is filled in the hollow shells to improve the radiation protection performance, but the radiation protection performance still needs to be improved, especially at the joint of the two shielding devices, the shell walls are generally only contacted, and the shell is thin and can not meet the radiation protection requirement easily, so that potential safety hazards are caused.

Therefore, there is a need to provide a new technical solution to improve the problems existing in the above solutions.

It is noted that this section is intended to provide a background or context to the embodiments of the invention that are recited in the claims. The description herein is not admitted to be prior art by inclusion in this section.

Disclosure of Invention

It is an object of the present invention to provide a shielding apparatus, which in turn overcomes, at least to some extent, one or more of the problems due to the limitations and disadvantages of the related art.

The embodiment of the invention provides a shielding device, which comprises a shell with an accommodating cavity and a shielding material filled in the accommodating cavity; the shell is provided with at least one opening, the opening in the shell has a preset depth, and the opening is filled with the shielding material.

In an embodiment of the invention, the depth of the shielding material filled in the opening is not less than one half of the preset depth of the opening.

In an embodiment of the present invention, the preset depth is not less than 2 cm.

In an embodiment of the present invention, the housing is provided with a plurality of openings.

In an embodiment of the invention, at least two of the openings are distributed on different surfaces of the housing.

In the embodiment of the invention, at least one opening is respectively arranged on the upper surface and the lower surface of the shell; or at least one opening is respectively arranged on the upper surface and the side surface of the shell; or at least one opening is respectively arranged on the lower surface and the side surface of the shell.

In an embodiment of the invention, the outer surface of the housing and/or the inner surface of the housing is recessed inside the receiving cavity.

In an embodiment of the present invention, the housing has at least one opening, and the shielding apparatus further includes a stopper extending from the opening into the accommodating cavity of the housing.

In an embodiment of the invention, the housing is made of cast iron and the shielding material is lead.

In an embodiment of the invention, the housing is formed by a plurality of housing components connected together.

The technical scheme provided by the embodiment of the invention can have the following beneficial effects:

in the embodiment of the invention, at least one opening with a preset depth is arranged on the shell of the shielding device, and the shielding material is filled in the opening besides the accommodating cavity in the shell, so that the radiation-proof performance of the shell wall can be improved, the radiation-proof performance at the joint of the two shielding devices can be further improved, and the safety is higher.

Drawings

FIG. 1 is a schematic view of a shielding apparatus according to the present embodiment;

FIG. 2 is a schematic view of a lead plug assembly in one embodiment.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

Furthermore, the drawings are merely schematic illustrations of the invention and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus their repetitive description will be omitted. Some of the block diagrams shown in the figures are functional entities and do not necessarily correspond to physically or logically separate entities.

In the present embodiment, there is provided a shielding apparatus, and referring to fig. 1, the shielding apparatus includes a housing 10 having a receiving cavity 110 and a shielding material 20 filled in the receiving cavity 110. The housing 10 is provided with at least one opening 111, and only two openings 111 are schematically shown in fig. 1, which is not limited to the embodiment. The opening 111 on the case 10 has a predetermined depth, and the shielding material 20 is also filled at the opening 111.

In this embodiment, at least one opening 111 with a predetermined depth is formed in the housing of the shielding device, and the shielding material 20 is filled in the opening 111 in addition to the accommodating cavity 110 in the housing 10, so that the radiation protection performance of the wall of the housing 10 can be increased, the radiation protection performance at the joint of the two shielding devices can be further improved, and the security is high.

The shielding material 20 may be lead, for example, when the shielding material is filled with lead, the lead is heated to melt into liquid, and poured into the accommodating cavity 110 from the opening 111, and after it is cooled and solidified, the lead is solidified at the opening 111 to prevent the lead from moving.

The shape of the housing 10 is not particularly limited in this embodiment, and may be a regular geometric shape, or other irregular shapes. These may be according to the specific requirements of the shielding device. The shielding device may be a shielding cover, a source guiding shielding body or a lead extraction plug assembly, a lead plug, a source extraction shielding body or a source transportation tank, and the like, which is not limited in this embodiment.

In the present embodiment, in order to further increase the radiation protection performance of the wall of the housing 10, the depth of the shielding material 20 filled in the opening 111 is not less than one half of the preset depth of the opening, but is not limited thereto.

In an embodiment, the preset depth may be set to not less than 2 cm. Illustratively, the shielding material 20 is filled in the opening 111 to a depth of not less than 2.5 cm. The shielding effect can be better by setting the preset depth of the opening to be not less than 5 cm.

In one embodiment, a plurality of openings 111 (not shown) may be provided in the housing 10, and the shielding material 20 is filled in each opening 111, so as to further increase the radiation protection performance of the housing wall.

In an embodiment, to improve the shielding effect of the shielding device, at least two openings 111 are distributed on different surfaces of the housing 10, but is not limited thereto. Illustratively, at least one opening may be provided on each of the upper and lower surfaces of the housing 10. Alternatively, at least one opening is provided on the upper surface and the side surface of the housing 10, respectively. Alternatively, at least one opening may be provided on the lower surface and the side surface of the housing 10, respectively, but the present invention is not limited thereto.

In the present embodiment, the outer surface of the housing 10 and/or the inner surface of the housing 10 may be recessed toward the inside of the accommodating cavity 110, which is not limited to this, and these may be set according to the application scenario, requirement, etc. of the shielding device.

In this embodiment, the housing 10 has at least one opening 111, such as a circular opening, and the shielding device may further include a stopper (not shown) extending from the opening 111 into the receiving cavity 110 of the housing 10, but is not limited thereto.

In the present embodiment, the housing 10 may be made of cast iron, and the shielding material 20 may be lead. The cast iron shell is adopted, and the shielding effect of the design of pouring lead into the cast iron shell is better.

In the present embodiment, the housing 10 may be formed by connecting a plurality of housing components, but is not limited thereto. The shape of the housing is not limited, and it may be a cylinder, or may be other irregular shapes, according to the specific requirements of the shielding device, for example, the shielding device is a shielding cover or a source guiding shielding body or a lead plug or a source taking shielding body or a source transporting tank, etc.

The shielding device is taken as a lead plug taking component or a lead plug weighing tool as an example for explanation. Referring to fig. 2, the lead extraction plug assembly includes a housing 101 having a receiving cavity and lead as a shielding material filled in the receiving cavity. The upper surface of the shell 101 is provided with a plurality of shielding holes 102 penetrating through the shell, the shielding holes 102 have a preset depth, and shielding material lead is filled in the accommodating cavity and each shielding hole 102. Optionally, in order to improve the shielding effect of the lead plug assembly, the shielding material is filled in the shielding hole 102 to a depth not less than one half of the preset depth of the opening, but is not limited thereto.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by those skilled in the art.

Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.