KR20120000372A - Radioactive rays shielding device and radioactive rays shielding door using there of - Google Patents

Radioactive rays shielding device and radioactive rays shielding door using there of Download PDF

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Publication number
KR20120000372A
KR20120000372A KR1020100060701A KR20100060701A KR20120000372A KR 20120000372 A KR20120000372 A KR 20120000372A KR 1020100060701 A KR1020100060701 A KR 1020100060701A KR 20100060701 A KR20100060701 A KR 20100060701A KR 20120000372 A KR20120000372 A KR 20120000372A
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KR
South Korea
Prior art keywords
door
radiation
shielding film
shielding
gear
Prior art date
Application number
KR1020100060701A
Other languages
Korean (ko)
Other versions
KR101193997B1 (en
Inventor
강현민
박상현
윤영규
장호종
Original Assignee
한국과학기술원
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Application filed by 한국과학기술원 filed Critical 한국과학기술원
Priority to KR1020100060701A priority Critical patent/KR101193997B1/en
Publication of KR20120000372A publication Critical patent/KR20120000372A/en
Application granted granted Critical
Publication of KR101193997B1 publication Critical patent/KR101193997B1/en

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    • GPHYSICS
    • G21NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21FPROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
    • G21F7/00Shielded cells or rooms
    • G21F7/02Observation devices permitting vision but shielding the observer
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05BLOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B83/00Vehicle locks specially adapted for particular types of wing or vehicle
    • E05B83/36Locks for passenger or like doors
    • E05B83/40Locks for passenger or like doors for sliding doors

Abstract

PURPOSE: A radiation shielding apparatus and a radiation shielding door assembly using the same are provided to block radiation only with the movement of a door using a turning gear and a conversion gear which are combined with the of a hinge shaft. CONSTITUTION: A door(110) is made of a radiation insulator. A shielding film(140) blocks radiation which is emitted to a gap between the ground and the door. The shielding film is arranged in a form which is laid under the bottom plane of an installation space in which the door is arranged. A driving part(130) is communicated with the operating state of the door and transfers the shielding film. The driving part includes a gear(132) which is connected to the hinge shaft and a hinge(131) which is combined with the door.

Description

Radiation shielding device and radiation shielding door assembly using the same

The present invention relates to a radiation shielding device and a radiation shielding door assembly using the same to prevent radiation from being emitted between the gap of the facility, such as a door.

Radioactive rays are used in a variety of scientific studies because of their many characteristics. In particular, it is generally used in nuclear power plants, various medical devices, and non-destructive testing devices, and in the field of biology and medicine, the use of radioisotopes is frequently used to observe substances.

However, because radiation has a large amount of energy and charge, which destroys the major structures of DNA and proteins, when exposed to radiation or exposed to radiation, mutations or cancers can cause serious damage to the human body.

In order to prevent exposure of such radiation, various radiation shielding technologies for shielding walls and shielding doors have been disclosed, and among them, a technique for preventing radiation from leaking between gaps of a door is disclosed in Korean Patent Registration No. 10-0334891 Lower radiation shielding device).

However, the cited technology has a problem that the shielding shielding seal does not move normally when the restoring force of the tensioning member is reduced due to oxidation or aging of the tensioning member because the shielding seal is moved by using the restoring force of the tensioning member.

In addition, when the door in which the radiation shielding device is installed is inclined due to an external impact or aging, a gap is generated between the floor and the radiation shielding device and radiation may leak out.

In addition, the cited technology can be used only when the floor is flat, there is a problem that the radiation is leaked to the outside when the floor is damaged due to the presence or unevenness on the floor, the door is installed or the external impact.

The present invention has been made in view of the above-mentioned problems, and an object thereof is to provide a solid radiation shielding device and a radiation shielding door assembly using the same, which do not deteriorate even after long-term use.

In one aspect of the present invention, a radiation shielding door assembly includes: a door formed of a radiation shielding material; A shielding film that blocks radiation emitted into the gap between the door and the ground; And moving the shielding film in association with an operation state of the door, and when the door is opened, lowers the shielding film from the door side to the ground side, and when the door is closed, the shielding film from the ground side to the door side. A driving unit for raising; Characterized in that it comprises a.

In addition, the shielding film is characterized in that it is disposed in the form of being buried in the bottom of the installation space is installed the door.

The shielding film is raised in a form overlapping the door.

In addition, the drive unit is a hinge coupled to the door; And a gear rotated in connection with the shaft of the hinge. Characterized in that it comprises a.

And the gear is a rotary gear that rotates in accordance with the rotation of the axis of the hinge; And a switching gear which rotates in engagement with the rotary gear and switches the rotation direction. Characterized in that it comprises a.

In addition, the shielding film is characterized in that moved in accordance with the rotation of the switching gear.

On the other hand, in order to achieve this object, the radiation shielding apparatus according to an aspect of the present invention, the rotating shaft is rotated by receiving power; A rotary gear rotated according to the rotation of the rotary shaft; A switching gear which rotates in engagement with the rotary gear and changes the rotation direction; And a shielding film moved according to the rotation of the switching gear. Characterized in that it comprises a.

In addition, the rotating shaft is characterized in that the power is received according to the movement of the door.

And the shielding film is characterized in that the rising in the form overlapping the wide surface of the door.

In addition, the shielding film is characterized in that it comprises a metal film and a non-metal film.

In addition, the non-metal film is characterized in that made of concrete.

As described above, according to the present invention, since the radiation is prevented from being emitted to the outside by blocking the gap of the door, there is a safe effect of preventing the damage caused by the radiation.

And since the operation of the shielding film to block the radiation without using a tension member such as a spring has the effect of improving durability.

In addition, there is an effect that the maintenance cost is reduced because the performance does not occur even after long-term use.

In addition, since a single switching gear is used to change the rotational direction and simultaneously move the shielding film, the risk of failure caused by a complicated configuration is reduced, and manufacturing cost is reduced.

In addition, the radiation shielding door blocks the radiation through the rotating gear and the switching gear coupled to the axis of the hinge has a convenient effect that can block the radiation only by the movement of the door.

And since the radiation shielding device can be used anywhere and can be used to receive power from the outside, there is an effect of simply blocking the radiation irrespective of the place.

1 is a perspective view of a radiation shielding door assembly according to a first embodiment of the present invention.
2 is an operating state diagram showing an operating state of the radiation shielding door assembly according to the first embodiment of the present invention.
3 is a perspective view of a radiation shielding apparatus according to a second embodiment of the present invention.
4 is a perspective view showing a part of a radiation shielding apparatus according to a second embodiment of the present invention.

The preferred embodiments of the present invention will be described in more detail with reference to the accompanying drawings, in which the technical parts already known will be omitted or compressed for simplicity of explanation.

First Embodiment

The radiation shielding door assembly 100 according to the present embodiment relates to a technology for blocking radiation emitted to the outside by being installed in a facility using radiation such as a medical institution, an industrial facility, a research institute, a radiation room, and a radioisotope room. 1 is a perspective view showing a radiation shielding door assembly 100 according to the present embodiment, Figure 2 is an operating state diagram showing the operating state of the radiation shielding door assembly 100 according to the present embodiment.

The radiation shielding door assembly 100 according to the present embodiment includes a door 110, a housing 120, a driver 130, a shielding film 140, and the like.

The door 110 is formed of a radiation shielding material to prevent radiation from being emitted to the outside. The shielding material formed on the door 110 may be any material as long as the shielding material is shielded from radiation, and is preferably made of a material capable of shielding all gamma rays from radiation due to high density such as lead and concrete.

The housing 120 is a place for receiving the driving unit 130 and the shielding film 140. In addition, one side of the housing 120 may be opened so that the driving unit 130 may be operated and the shielding layer 140 may be moved.

The material of the housing 120 may be any material as long as the material can protect the structure accommodated therein. However, the housing 120 is preferably made of an alloy such as metal having excellent durability.

Such a housing 120 may be disposed anywhere in the door 110 as long as a gap exists to emit radiation, but is disposed in a form embedded in the lower portion of the door 110 so that the housing 120 may be fixedly disposed. It is preferable to be.

The driving unit 130 moves the shielding film 140 in association with the operating state of the door 110, and when the door 110 is opened, lowers the shielding film 140 from the door 110 to the ground side, the door 110 In the case of closing), the shielding film 140 is raised from the ground side to the door 110 side, and includes the hinge 131 and the gear 132.

The hinge 131 is coupled to the door 110 and connected to the shaft 131a of the hinge so that the door 110 is opened and closed so that one hinge is fixed to the door frame and the other to the door 110. In addition, the shaft 131a of the hinge is rotated together with the part of the hinge 131 fixed to the door so that the hinge 131 can be rotated together as the door 110 moves.

That is, when the door 110 is opened and closed, the portion of the hinge 131 fixed to the door 110 and the shaft 131a of the hinge rotate together to transmit the movement of the door 110 to the gear 132 side. In addition, one end of the shaft 131a of the hinge is constrained and rotated by the housing 120.

The gear 132 is connected to the shaft 131a of the hinge and rotates. The gear 132 includes a rotating gear 132a and a switching gear 132b.

The rotary gear 132a is a place that rotates according to the rotation of the shaft 131a of the hinge. The rotary gear 132a may be coupled to any position of the shaft 131a of the hinge as long as the rotary gear 132a is coupled to the shaft 131a of the hinge, but the housing may be prevented from being damaged. It is preferably coupled to one end of the shaft 131a of the hinge that is constrained by 120.

In addition, the teeth formed on the rotary gear 132a may be formed only on one side of the rotary gear 132a. In the case of the general door 110, since the operation radius of the door 110, in which the door 110 is opened and closed, is 180 degrees or less, accordingly, the teeth formed on the rotary gear 132a also depend on the operation radius of the door 110. It may be formed only on one side of the rotary gear (132a).

The switch gear 132b is rotated in engagement with the rotary gear 132a, and is a place to change the rotation direction. The shift gear 132b is meshed with the rotary gear 132a orthogonally in the form of a cross-axis gear to switch the rotation direction of the rotary gear 132a.

In addition, the teeth of the switch gear 132b may be formed only on one side of the switch gear 132b, similar to the teeth of the rotary gear 132a formed according to the operating radius of the door 110.

In addition, the switching gear 132b is connected to the shielding film 140 to move the shielding film 140. That is, one side of the switching gear 132b is connected to the rotary gear 132a to change the rotation direction of the rotary gear 132a, and the other side of the switching gear 132b is connected to the shielding film 140 to connect the shielding film 140. Move it.

The driving unit 130 receives power to move the shielding film 140 to move toward the door 110 in response to the movement of the door 110. In addition, although the shielding film 140 may be raised in contact with the lower portion of the door 110, the shielding film 140 may overlap with the door 110 to block radiation regardless of a phenomenon such as tilting of the door 110. It is preferred to be elevated.

The shielding film 140 blocks the radiation emitted into the gap between the door 110 and the ground, and prevents radiation from being emitted to the outside.

The shielding film 140 may be made of a metal blocking the alpha and beta rays of the radiation, it is preferable to include lead, etc. that can block the alpha, beta and gamma rays of the radiation.

In addition, a plurality of grooves G1 meshing with the teeth of the switching gear 132b are formed at one side of the shielding film 140. That is, while the teeth formed in the switching gear 132b are engaged with the plurality of grooves G1 formed in the shielding film 140 in turn, the rotational movement of the switching gear 132b is converted into the linear motion of the shielding film 140. .

The plurality of grooves G1 may be formed to be engaged with the switching gear 132b by using an alloy such as metal having excellent durability, and then included in the shielding layer 140.

Next, an operating state of the radiation shielding door assembly 100 according to the present embodiment will be described with reference to FIG. 2.

As shown in FIG. 2, when the door 110 is closed, the shielding film 140 is raised to overlap with the door 110 to prevent radiation from being emitted into the lower gap of the door 110.

At this time, when the door 110 is opened, the rotary gear 132a connected to the shaft 131a of the hinge of the door 110 is rotated, and meshes with the rotary gear 132a in accordance with the rotation of the rotary gear 132a. The switching gear 132b is rotated. In addition, as the plurality of grooves G1 formed in the shielding film 140 are engaged with the switching gear 132b in turn, the shielding film 140 is lowered.

Second Embodiment

The radiation shielding apparatus 200 according to the present embodiment relates to a technique for blocking radiation emitted between a gap of a facility such as a door. 3 is a perspective view showing a radiation shielding apparatus 200 according to the present embodiment, Figure 4 is a perspective view showing a part of the radiation shielding apparatus 200 according to the present embodiment.

The radiation shielding apparatus 200 according to the present embodiment includes a housing 210, a rotation shaft 220, a rotation gear 230, a switching gear 240, a shielding film 250, and the like. Description of the configuration and operation of the switching gear 240 is the same as the switching gear 132b in the first embodiment and will be omitted.

The housing 210 forms a frame of the radiation shielding apparatus 200 according to the present embodiment, and accommodates the rotating shaft 220, the rotating gear 230, the switching gear 240, the shielding film 250, and the like. In addition, one side of the housing 210 is opened to allow the rotation of the rotation shaft 220 and the movement of the shielding film 250 to be performed.

The material of the housing 210 may be any material as long as the material can protect the structure accommodated therein, but is preferably made of an alloy such as metal having excellent durability.

Such a housing 210 may be disposed in any facility as long as it emits radiation, but is preferably arranged in a facility such as a door. In addition, the housing 210 may be disposed anywhere in the door as long as there is a gap and can emit radiation, but it is preferable that the housing 210 is disposed in a form embedded in the lower part of the door so as to be firmly fixed.

The rotating shaft 220 is a place that is rotated in accordance with the movement of the facility, such as the door. The rotary shaft 220 may be used anywhere as long as the rotary shaft 220 can be rotated by receiving power, but is preferably coupled to one side of the hinge coupled to the door and rotated according to the movement of the door and the hinge. That is, one end of the rotating shaft 220 is coupled to the hinge side of the door is rotated in accordance with the movement of the door, the other end of the rotating shaft 220 is constrained by the housing 210 is rotated.

The rotary gear 230 is a place that is rotated in accordance with the rotation of the rotary shaft 220. The rotary gear 230 may be coupled anywhere on the rotary shaft 220 wherever it can be coupled to the rotary shaft 220, but by the housing 210 to prevent the rotary gear 230 from being broken. It is preferable to be coupled to the other end of the rotating shaft 220 is constrained.

In addition, the teeth formed on the rotary gear 230 may be formed only on one side of the rotary gear 230. In the case of a general door, since the operating radius of the door that is opened and closed is 180 degrees or less, the teeth formed on the rotary gear 230 may also be formed only on one side of the rotary gear 230 according to the operating radius of the door. .

In addition, the rotary gear 230 may be molded together with the rotary shaft 220 to enhance the durability of the radiation shielding apparatus 200 according to the present embodiment and to operate more robustly.

The shielding film 250 is moved by the rotation of the switching gear 240, and prevents radiation from being emitted to the outside. The shielding film 250 includes a first shielding film 251 and a second shielding film 252 to block radiation.

The first shielding film 251 is made of a metal film that blocks alpha rays and beta rays among the radiation. At this time, the metal film may be any metal as long as it can block radiation, but preferably made of lead, etc., which can block alpha rays, beta rays and gamma rays.

Radiation may be blocked through the first shielding layer 251 including lead, and the thickness of the second shielding layer 252 may be reduced.

The second shielding film 252 is formed of a non-metal film to block radiation that is not blocked through the metal film that is the first shielding film 251. At this time, the non-metal film may be any material as long as it is a non-metal material that can block radiation, but preferably includes concrete or the like that can effectively block gamma rays and the like.

Through the second shielding film 252 including the concrete can effectively block the radiation, there is an advantage to improve the durability of the shielding film (250).

In addition, a plurality of grooves G2 meshing with the teeth of the switching gear 240 are formed at one side of the shielding film 250. That is, while the teeth formed in the switching gear 240 are engaged with the plurality of grooves G2 formed in the shielding film 250 in turn, the rotational motion of the switching gear 240 is converted into the linear motion of the shielding film 250. .

The plurality of grooves G2 may be formed at any one of the first shielding film 251 or the second shielding film 252 to be engaged with the switching gear 240, but may be generated due to long-term use. In order to prevent abrasion of G2), the second shielding film 252 is preferably formed.

The plurality of grooves G2 may be formed to be engaged with the switch gear 240 by using an alloy such as metal having excellent durability, and then included in the second shielding film 252.

As described above, the detailed description of the present invention has been made by the embodiments with reference to the accompanying drawings. However, since the above-described embodiments have only been described with reference to preferred examples of the present invention, the present invention is limited to the above embodiments. It should not be understood that the scope of the present invention is to be understood by the claims and equivalent concepts described below.

100: radiation shielding door assembly
110: door 120: housing
130: drive unit
131 hinge
131a: axis of the hinge
132 gear
132a: Rotating Gear 132b: Switching Gear
140: shielding film
G1: home
200: radiation shielding device
210: housing 220: rotating shaft
230: rotary gear 240: switching gear
250: shielding film
251: first shield 252: second shield
G2: Home

Claims (11)

  1. A door formed of a radiation shielding material;
    A shielding film that blocks radiation emitted into the gap between the door and the ground; And
    The shielding film is moved in association with the operation state of the door, and when the door is opened, the shielding film is lowered from the door side to the ground side, and when the door is closed, the shielding film is raised from the ground side to the door side. A driving unit to make; Characterized in that it comprises
    Radiation shielding door assembly.
  2. The method of claim 1,
    The shielding film is disposed in the form of being buried in the bottom of the installation space is installed the door
    Radiation shielding door assembly.
  3. The method of claim 1,
    The shielding film is raised to overlap with the door, characterized in that
    Radiation shielding door assembly.
  4. The method of claim 1,
    The driving unit
    A hinge coupled to the door; And
    A gear rotated in connection with the axis of the hinge; Characterized in that it comprises
    Radiation shielding door assembly.
  5. The method of claim 4, wherein
    The gear is
    A rotary gear rotated according to the rotation of the shaft of the hinge; And
    A switching gear which rotates in engagement with the rotary gear and changes the rotation direction; Characterized in that it comprises
    Radiation shielding door assembly.
  6. The method of claim 5,
    The shielding film is moved according to the rotation of the switching gear
    Radiation shielding door assembly.
  7. A rotating shaft rotated by receiving power;
    A rotary gear rotated according to the rotation of the rotary shaft;
    A switching gear which rotates in engagement with the rotary gear and changes the rotation direction; And
    A shielding film moved according to the rotation of the switching gear; Characterized in that it comprises
    Radiation shields.
  8. The method of claim 7, wherein
    The rotating shaft is characterized in that the power is received according to the movement of the door
    Radiation shields.
  9. The method of claim 7, wherein
    The shielding film is raised in a form overlapping the wide surface of the door
    Radiation shields.
  10. The method of claim 7, wherein
    The shielding film comprises a metal film and a non-metal film
    Radiation shields.
  11. The method of claim 10,
    The non-metal film is characterized in that made of concrete
    Radiation shields.
KR1020100060701A 2010-06-25 2010-06-25 Radioactive rays shielding door assembly KR101193997B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020100060701A KR101193997B1 (en) 2010-06-25 2010-06-25 Radioactive rays shielding door assembly

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020100060701A KR101193997B1 (en) 2010-06-25 2010-06-25 Radioactive rays shielding door assembly

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KR20120000372A true KR20120000372A (en) 2012-01-02
KR101193997B1 KR101193997B1 (en) 2012-10-24

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101880061B1 (en) * 2016-12-06 2018-07-20 한국원자력연구원 Device for driving hot cell shielding door

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100669177B1 (en) 2005-07-20 2007-01-16 주식회사 핵광산업 Emission shield door assembly and opening - closing apparatus thereof
KR100894112B1 (en) 2008-02-28 2009-04-20 (주) 액트 Radioactivity shielding sliding door
KR100965115B1 (en) 2009-05-25 2010-06-23 김인중 Floodgate

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101880061B1 (en) * 2016-12-06 2018-07-20 한국원자력연구원 Device for driving hot cell shielding door

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Publication number Publication date
KR101193997B1 (en) 2012-10-24

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