阅读说明：本技术 一种放射源屏蔽装置 (Radioactive source shielding device ) 是由 田立 肖小文 许常龙 于 2019-11-27 设计创作，主要内容包括：本发明公开了一种放射源屏蔽装置,包括外壳组件,屏蔽组件,旋盖,安装筒和限位板,本发明通过设置外壳组件和屏蔽组件,设置安装筒、屏蔽壳和外壳三层屏蔽层,提高屏蔽装置的屏蔽效果,避免放射源在工作过程中辐射到外壳的外侧,将人体接受放射源的辐射量降至零,保证放射源的安全使用；通过设置屏蔽组件,安装筒的上端卡接在卡板的卡槽内,安装筒的中间卡接在限位环的限位槽内,旋盖的上端与限位板贴合,实现安装筒的安装作业,便于进行安装筒的安装与拆卸；通过设置旋盖和安装板,旋盖对通孔起到封闭的作用,便于进行屏蔽壳和外壳下端的封闭,避免安装筒在通孔内出现晃动的现象,安装板便于将屏蔽装置安装在待检测件上,实现放射源的安装。(The invention discloses a radioactive source shielding device, which comprises a shell component, a shielding component, a spiral cover, an installation barrel and a limiting plate, wherein the shell component and the shielding component are arranged, and three shielding layers of the installation barrel, the shielding shell and the shell are arranged, so that the shielding effect of the shielding device is improved, a radioactive source is prevented from radiating to the outer side of the shell in the working process, the radiation dose of a human body receiving the radioactive source is reduced to zero, and the safe use of the radioactive source is ensured; by arranging the shielding assembly, the upper end of the mounting cylinder is clamped in the clamping groove of the clamping plate, the middle of the mounting cylinder is clamped in the limiting groove of the limiting ring, and the upper end of the spiral cover is attached to the limiting plate, so that the mounting operation of the mounting cylinder is realized, and the mounting and dismounting of the mounting cylinder are facilitated; through setting up spiral cover and mounting panel, the spiral cover plays confined effect to the through-hole, is convenient for carry out the closure of shielding shell and shell lower extreme, avoids an installation section of thick bamboo the phenomenon that rocks to appear in the through-hole, and the mounting panel is convenient for install shield assembly on waiting to detect the piece, realizes the installation of radiation source.)

1. A radioactive source shielding device, comprising: the radioactive source shielding device comprises a shell assembly (1), a shielding assembly (2), a spiral cover (3), an installation cylinder (4) and a limiting plate (5), wherein the shielding assembly (2) is sleeved inside the shell assembly (1); the screw cap (3) is fixed at the middle position below the inner parts of the shell component (1) and the shielding component (2) through threads, and a perforating hole is formed in the middle position of the screw cap (3); the mounting cylinder (4) is clamped in the middle position in the shielding assembly (2), the lower end of the mounting cylinder (4) is attached to the lower end of the spiral cover (3), and a radioactive source is mounted in the mounting cylinder (4); the number of the limiting plates (5) is two, and the limiting plates (5) are welded below the left side and the right side of the mounting cylinder (4).

2. The radiation source shielding device of claim 1, wherein: the shell component (1) comprises a shell (11), two mounting plates (12), a handle (13) and mounting grooves (14), wherein the mounting plates (12) are welded below the left side and the right side of the shell (11); the handle (13) is welded at the middle position above the shell (11); the mounting groove (14) is formed in the middle of the lower portion of the shell (11).

3. The radiation source shielding device of claim 2, wherein: a lead plate is embedded in the inner side of the shell (11); the mounting plate (12) is provided with a mounting hole; a handle is welded at the upper end of the lifting handle (13); the inner side of the mounting groove (14) is provided with threads, and the size of the mounting groove (14) is matched with that of the screw cap (3).

4. The radiation source shielding device of claim 1, wherein: the shielding assembly (2) comprises a shielding shell (21), a through hole (22), a clamping plate (23) and a limiting ring (24), wherein the shielding shell (21) is sleeved in the shell (11); the through hole (22) is formed in the middle of the interior of the shielding shell (21); the clamping plate (23) is welded in the middle position above the inner part of the through hole (22), and the clamping plate (23) is provided with a clamping groove; the two limiting rings (24) are welded in the through hole (22), the limiting rings (24) are located below the clamping plate (23), and limiting grooves are formed in the limiting rings (24).

5. The radiation source shielding device of claim 4, wherein: the size of the shielding shell (21) is matched with that of the shell (11); the through hole (22) is cylindrical; the size of the clamping groove of the clamping plate (23) is matched with that of the mounting cylinder (4); the limiting groove of the limiting ring (24) is positioned in the middle of the limiting ring (24), and the size of the limiting groove of the limiting ring (24) is matched with that of the mounting cylinder (4).

Technical Field

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

Background

The radioactive source is widely applied to the fields of industry, medicine and the like, for example, in the metallurgical industry, a cesium-137 or cobalt-60 radioactive source is commonly used for detecting the liquid level of molten steel of a continuous casting machine crystallizer, because the continuous casting machine crystallizer is replaced or overhauled, the radioactive source is often required to be transferred from the working position of the continuous casting machine crystallizer to a shielding device for storage, and during the production of a continuous casting machine, the radioactive source is required to be transferred from the shielding device to the working position of the continuous casting machine crystallizer.

The existing radioactive source shielding device adopts a single-layer shielding mechanism, has poor shielding effect, increases the radiation capacity of a human body for receiving radioactive sources, is not convenient for the installation and the disassembly of a radiation mechanism, wastes a large amount of labor and time, and has the problem of potential safety hazard.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a radioactive source shielding device, which solves the problems that the existing radioactive source shielding device adopts a single-layer shielding mechanism, has poor shielding effect, increases the radiation quantity of a radioactive source received by a human body, is inconvenient for the installation and the disassembly of a radiation mechanism, wastes a large amount of labor and time and has potential safety hazards.

(II) technical scheme

In order to achieve the purpose, the invention provides the following technical scheme: a radioactive source shielding device comprises a shell assembly, a shielding assembly, a spiral cover, an installation barrel and a limiting plate, wherein the shielding assembly is sleeved in the shell assembly; the screw cap is fixed at the middle position below the inner parts of the shell component and the shielding component through threads, and a perforating hole is formed in the middle position of the screw cap; the mounting cylinder is clamped in the middle position in the shielding assembly, the lower end of the mounting cylinder is attached to the lower end of the rotary cover, and a radioactive source is mounted in the mounting cylinder; the two limiting plates are adopted and welded below the left side and the right side of the mounting cylinder.

The shell assembly comprises a shell, two mounting plates, a handle and two mounting grooves, wherein the two mounting plates are welded below the left side and the right side of the shell; the lifting handle is welded at the middle position above the shell; the mounting groove is arranged in the middle of the lower portion of the shell.

The lead plate is embedded in the inner side of the shell; the mounting plate is provided with a mounting hole; a handle is welded at the upper end of the lifting handle; the inner side of the mounting groove is provided with threads, and the size of the mounting groove is matched with that of the screw cap.

The shielding assembly comprises a shielding shell, a through hole, a clamping plate and a limiting ring, wherein the shielding shell is sleeved in the shell; the through hole is formed in the middle of the interior of the shielding shell; the clamping plate is welded at the middle position above the inner part of the through hole and is provided with a clamping groove; the limiting rings are two in number and welded in the through holes, the limiting rings are located below the clamping plates, and limiting grooves are formed in the limiting rings.

The size of the shielding shell is matched with that of the shell; the through hole is cylindrical; the size of the clamping groove of the clamping plate is matched with that of the mounting cylinder; the limiting groove of the limiting ring is positioned in the middle of the limiting ring, and the size of the limiting groove of the limiting ring is matched with that of the mounting cylinder.

(III) advantageous effects

The invention provides a radioactive source shielding device. The method has the following beneficial effects:

(1) according to the invention, the shell component and the shielding component are arranged, the radioactive source is placed in the installation cylinder, and the three shielding layers of the installation cylinder, the shielding shell and the shell are arranged, so that the shielding effect of the shielding device is improved, the radioactive source is prevented from radiating to the outer side of the shell in the working process, the radiation quantity of the radioactive source received by a human body is reduced to zero, and the safe use of the radioactive source is ensured.

(2) According to the invention, the shielding component is arranged, the upper end of the mounting cylinder is clamped in the clamping groove of the clamping plate, the middle of the mounting cylinder is clamped in the limiting groove of the limiting ring, and the upper end of the spiral cover is attached to the lower end of the limiting plate, so that the mounting operation of the mounting cylinder is realized, the mounting and dismounting of the mounting cylinder are convenient, a large amount of labor and time are saved, the mounting stability of the mounting cylinder is improved, and the safety performance of the shielding device is improved.

(3) According to the invention, the rotary cover and the mounting plate are arranged, the rotary cover plays a role in sealing the through hole, the lower ends of the shielding shell and the shell are conveniently sealed, the phenomenon that the mounting cylinder shakes in the through hole is avoided, the mounting plate is convenient for mounting the shielding device on the piece to be detected, the mounting of the radioactive source is realized, and the operation is convenient and rapid.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the housing assembly of the present invention;

fig. 3 is a schematic structural diagram of the shielding assembly of the present invention.

In the figure: the device comprises a shell assembly 1, an outer shell 11, a mounting plate 12, a handle 13, a mounting groove 14, a shielding assembly 2, a shielding shell 21, a through hole 22, a clamping plate 23, a limiting ring 24, a spiral cover 3, an installation barrel 4 and a limiting plate 5.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.