JPS6138598A - Built-up type radiation protective screen - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

Detailed Description of the Invention (Field of Industrial Application) The present invention relates to a prefabricated radiation protection screen, and particularly to a prefabricated radiation protection screen that can freely vary the shielding area and has a good radiation shielding effect. It is something.

(Prior Art) When shielding radiation 1, for example, X-rays, lead is used, but conventional radiation protection i! ! The screen used a large lead plate to shield radiation.

(Problems to be solved by the invention) The radiation protection screen, which is moved when the radiation equipment is moved, has the disadvantage that it is heavy and difficult to move, and also has the disadvantage that it gets in the way when not in use. Ta.

The purpose of the present invention is to solve the above-mentioned drawbacks, and it is not only useful for shielding radiation, but also allows the shielding area to be changed freely, can be moved freely, and can be kept small when not in use. The purpose is to provide a prefabricated radiation protection screen that can be assembled.

(Means for Solving the Problems) For this purpose, the prefabricated radiation protection screen of the present invention has an extensible frame body provided with guide posts on both sides, and a step is formed on both end faces of one side.

A rectangular member with grooves formed on both end faces of the other side is provided, and the member is provided with two parallel shielding plates arranged in a form shifted in the above-mentioned different directions. An auxiliary shielding plate is provided at a different level and is arranged parallel to the shielding plate, and guides the plurality of shielding panels and the grooves provided in the shielding panels and supports all the assembled shielding plates. .

It is characterized in that it is equipped with a presser plate provided with a shielding member that shields the seam of the shielding channel ξ, and the shielding area can be freely expanded and contracted. The present invention will be described in detail below with reference to the drawings.

(Example) Fig. 1 is an assembly diagram of an assembly type radiation protection screen according to the present invention;
Figure 2 is a configuration diagram explaining the configuration of the shielding nominal, Figure 3 is its side view, Figure 4 is the bottom view of Figure 2, and 1r5.
ciltl! Figure 1 (7) A-A sectional view! Fig. 6 is a sectional view taken along line B-B of @1, Fig. 7 is a front view of a shielding panel provided with a window, and Fig. 8 is a longitudinal sectional view thereof.

As shown in Figure 1, the guides can be freely expanded and contracted on both sides.
A post 1 is provided, and an upper end frame 2 and a lower end frame 3 are attached to the upper and lower ends of the guide post 1. The upper end frame 2 and lower end frame 3 are also configured to be freely expandable and contractable. Guide post 1. The frame body consisting of the upper end frame 2 and the lower end frame 3 becomes a framework adapted to the number of shielding panels 4. A press plate 5 that supports the shielding panel 4 is provided between the upper end frame 2 and the lower end frame 3, and the shielding panel 4-
The assembly of the shielding panel 4 is made to be rigid, thereby completely preventing a person from being exposed to radiation if the assembly of the shielding panel 4 breaks during one update of the radiation equipment. Casters 6 are provided on the lower end frame 3.
Casters 6 can be attached to the middle, which can withstand the weight of the S-shielding panel 4! The structure is designed to facilitate movement.

The number of shielding panels 4 can be freely increased in each direction of height and width, and the shielding area can be changed. The structure of this shielding panel 4'! ! I-This will be explained using FIGS. 2 to 4.

There are two shields arranged in parallel on the 6-channel 4, and the positions of the shields are shifted up and down because of η.

For example, a member 9t is sandwiched between lead plates 7.8 in a sandwich-like groove 9, and radiation is shielded by the lead plates 7.8. The end face of the shielding panel 4 is formed into a long shape. That is, as shown in FIGS. g2 to 4, a difference in level is formed on both end surfaces in the upper and lower views, and a recess g9a is formed on both end surfaces between the left and right sides. Then, the lead plate 10.11 of the auxiliary shielding plate is parallel to the upper C lead plate 7.8, and the valley lead of the auxiliary shielding plate is parallel to the upper C lead plate 7.8 on the side where there is no notch in the stepped portion formed on both end faces in the upper and lower views. The height h of the plates 10 and 11 is selected to be the height of the above-mentioned difference (2) (the height is increased), respectively.

The member 9 is made of a lightweight material, such as synthetic resin or light metal.
Wood or the like is used to reduce the weight of the shielding panel 4. Therefore, holes etc. can be provided in the member 9 even if the weight is reduced.

The surface of the lead plate 7.8 is a decorative plate 12 such as a thin iron plate or aluminum plate.
．． It is covered with 13. Member 9. Lead plate 7゜8.10.1
1 and the decorative board 12.13 are pasted together with adhesive or the like, or by folding the ends of the decorative board 10.11, etc., the lead board 7.8 is integrated without making any holes. ing.

FIG. 5 shows the λ-human cross section r of FIG. 1, in which a U-shaped guide plate 15 is attached to the guide post IU post 14. One end of the shielding panel 4 is inserted into the groove of the guide plate 15, and the other end is circular. Convex plan 17'3R
A shielding member for shielding, for example, two lead plates 1 is attached to the circular part 17.
8.19 is inserted across member 2 (1-).The lead plates 18 and 19 of this shielding member cover the seam of the left and right end surfaces of the shielding panel 4, completely shielding radiation. As is clear from this explanation (the holding plate 5 completely shields the joint part in the width direction of the shielding panel 4, and at the same time, the radiation protection surface W' is made by using four shielding panels A). It also serves as a guide when assembling the shield panel 4, and also serves to strengthen the mechanical strength. Lead plate provided in the section 10.11
It is carried out by

FIG. 6 shows the B-111j plane of FIG. Symbols F to 13 correspond to those in Figures 1 to 3, and 2
4 shielding panels are formed at the lower end and upper end of each shielding panel 4, respectively, and are mechanically combined by one step 71c. The two shield tunnels 4 each have a lead plate 7.
8 covers that surface, but there are straight seams at positions 0 and D. The straight seam at 0 is qualitatively covered by the lead plate 8 and the lead plate 11 of the auxiliary shielding plate, which is at a different height H and has a higher height h'. The shaped joint is substantially covered by the lead plate 7 and the lead plate lO of the auxiliary shielding plate having a height H which is different from the lead plate 7. Therefore, radiation is completely blocked by the vertical seam of the shielding panel 4 even after 65 minutes.

Regarding the shielding and the corner portion of the panel 4, as is clear from the above description of the shielding of the joints in the width direction and the vertical direction, the lead plate 17.1 of the convex guide portion 17 provided on the presser plate 5
8 and q! It is completely shielded by the lead plates 10 and 11 provided at different levels of the r-shielding panel 4.

The entire surface of the shielding panel 4 is grooved with lead plates 7, 8, etc., and it is also made of lead glass to shield radiation. Depending on the use, the shielding panel 4 can be provided with a window. This windowed shielding panel is shown in Figure 7'', @Figure 8.

In FIGS. 7 and 8, a window 21 is provided in the center of the shielding panel 4, and a lead glass 23 for radiation shielding is fitted into the window 21 through a groove king 22.

Except for the point that a window 21 is provided in the center of the shielding panel 4, and a lead glass 23 is fitted into the window 21, the other components such as lead plates 7, 8, 10, 11, etc. are shown in Figure Ig2. (after shielding) is the same as the purchase of panel 4. If this window-equipped shielding panel 47 is used at the top of the assembly (2) shown in FIG. 1, the opposite side can be seen through, making work easier.

When using a prefabricated radiation protection shield using these shielding panels, several types of shielding panels with different thicknesses t of the lead plates 7, 8 provided on the shielding panel 4 are prepared. Then, if you use a shielding panel with a thick lead plate in the area where the radiation intensity is high and a shielding panel with a thin lead plate in the area where the radiation intensity is low and assemble the shield, the shielding effect can be improved. Good and lightweight, the next radiation protection impact can be achieved. .

Furthermore, in the above explanation, the shielding iR panel is supported by using the presser plate 5 between the upper end frame 2 and the lower end frame 3, but the guide
The shielding panel 4 can also be supported using a holding plate 57 between both sides of the post 1. At this time, it goes without saying that the steps and grooves 9a' (shaped) formed on both end faces of the shielding panel 4 in the vertical and width directions, that is, in the left and right directions, must be replaced.

(Effects of the Invention) As explained above, if the present invention is implemented, the number of shielding flannel can be freely changed in terms of the number of sheets for summer use, and the shielding area in the width direction can be changed freely. A stray eyes are completely covered with a shielding plate, and can be realized with the assembled radiation protection shield XL, which completely shields radiation.Also, the thickness of the S-shielding plate can be adjusted depending on the intensity of the total radiation. Since it can be assembled with nine pieces of material, it is possible to increase the shielding effect by 4S'r and reduce the weight of the shield.And since it can be assembled using the shield panel that is attached to the window, it is possible to assemble the shield panel on the same side. The situation can be seen through, making the work easier.

Since it can be disassembled into small pieces when not in use, it is convenient to store and can be easily transported over long distances.

[Brief explanation of the drawing]

FIG. 1 is an assembly diagram of a prefabricated radiation protection shield according to the present invention.
Figure 2 is a lecture diagram explaining the groove bottom of the shielding panel, Figure 3
The figure is a side view, Figure 4 is a bottom view of the second prisoner, Figure 5 is a sectional view taken along line AA in Figure 1, Figure 6 is a sectional view taken along line nB in Figure 1,
Fig. 7 is a front view of a shielding nosonel in which a window is provided in the shielding panel, and Fig. 8 is a vertical cross-section thereof.
4 is a shielding groove, 5 is a presser plate, 6 is a caster, 7.8
is a lead plate, 9μ member, 10.11 is a lead plate, 12.13 is a decorative board, 14 is a post, 15 is a guide plate, 17 is a convex guide part, 18, 19U lead plate, 20 is a member, 21 is a window , 22 represents packing, and 23 represents lead glass.

Claims (2)

[Claims] (1) An extensible frame body with guide posts provided on both sides, and a rectangular member with a step formed on both end faces of one side and a groove formed on both end faces of the other side, the member is provided with two parallel shielding plates arranged in a manner shifted in the direction of the difference in level, and further provided with an auxiliary shielding plate arranged in parallel with the shielding plate in the uneven part of the end face. The shielding area includes a plurality of shielding panels, a holding plate that guides the grooves provided in the shielding panels, supports the assembled shielding panels, and is provided with a shielding member that shields the joints of the shielding panels. An assembly type radiation protection screen characterized by being able to freely expand and contract. (2) A lead glass window is provided in the center of the shielding panel,
The sectional radiation protection screen according to claim 1, characterized in that it is transparent.