CN109378102B - Method for realizing double-cover locking - Google Patents
Method for realizing double-cover locking Download PDFInfo
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- CN109378102B CN109378102B CN201811099206.9A CN201811099206A CN109378102B CN 109378102 B CN109378102 B CN 109378102B CN 201811099206 A CN201811099206 A CN 201811099206A CN 109378102 B CN109378102 B CN 109378102B
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- cover
- barrel cover
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- locking
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
- G21F5/00—Transportable or portable shielded containers
- G21F5/06—Details of, or accessories to, the containers
- G21F5/12—Closures for containers; Sealing arrangements
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
- G21F5/00—Transportable or portable shielded containers
- G21F5/002—Containers for fluid radioactive wastes
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
- G21F5/00—Transportable or portable shielded containers
- G21F5/06—Details of, or accessories to, the containers
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Closures For Containers (AREA)
Abstract
The invention relates to a method for realizing double-cover locking, belonging to the technical field of sealing. The method is realized by a double-cover locking mechanism, wherein the double-cover locking mechanism comprises a shielding barrel, a shielding barrel cover, an airtight transfer barrel and an airtight transfer barrel cover; when the shielding barrel cover and the shielding barrel are locked, the barrel cover locking pin retracts into the barrel chamber sealing cover, the airtight transfer barrel cover and the shielding barrel cover are unlocked, and the airtight transfer barrel cover is buckled with the airtight transfer barrel; after the shielding barrel cover and the shielding barrel are unlocked, the barrel cover locking pin extends into the clamping groove of the barrel cover locking pin grooved wheel, the shielding barrel cover and the airtight transferring barrel cover are locked, and the airtight transferring barrel cover and the barrel chamber sealing cover are synchronously opened and closed. The shielding barrel cover is provided with a locking cover/unlocking driving cylinder, and the rotation of the locking ring of the shielding barrel cover and the expansion of the locking pin of the barrel cover are synchronously driven by the locking cover/unlocking driving cylinder. The invention is suitable for storing and transporting volatile radioactive substances, the whole transporting operation process is kept in an airtight state, and the radioactive aerosol is prevented from leaking to a personnel operation area, so that the risk of radioactive aerosol pollution is obviously reduced.
Description
Technical Field
The invention relates to a method for realizing double-cover locking, belonging to the technical field of sealing.
Background
In the existing double-cover sealing technology, the application number 201410592640.6 patent application document 'gravity type double-cover sealing device' published by the State administration has the publication date of 2015, 4 months and 1 days, and relates to a gravity type double-cover sealing device which comprises an upper cover assembly and a lower cover assembly, wherein the upper cover assembly comprises an upper flange and an upper cover arranged in an inner hole of the upper flange; the lower cover component comprises a lower flange and a lower cover arranged in an inner hole of the lower flange; the upper cover is provided with a double-cover locking mechanism which penetrates through the upper cover and can be connected with the lower cover through a grab hook at the lower part of the double-cover locking mechanism or disconnect the grab hook from the lower cover under the action of self gravity. The device utilizes the self gravity action of the components to realize the locking, unlocking and sealing between the upper cover and the lower cover, between the upper cover and the upper flange and between the lower cover and the lower flange.
The patent application No. 201210356649.8 published by the national Bureau of Patents discloses a multi-point locking double lid seal, the publication date of the patent application document is 2013, 1, 16, the application relates to a multi-point locking double-cover sealing device, the device comprises an upper door assembly, a lower door assembly and a special tool, wherein the upper door assembly and the lower door assembly respectively comprise a circular door plate, a door seat and a plurality of sets of locking and unlocking devices, wherein the door plate is arranged in the door seat, the plurality of sets of locking and unlocking devices are uniformly distributed around the center of the door plate, the lower end of a door bolt of the upper door locking and unlocking device is provided with a groove, the door bolt penetrates through the lower door plate to be matched with a lock shaft of the lower door locking and unlocking device, the lower end of the lock shaft is connected with a clamping plate which rotates together with the lock shaft, the lock shaft is rotated through a special tool, so that the clamping plate is screwed into or out of the groove on the lower door seat, and the lower door seat is separated from the lower door plate; meanwhile, the door bolt is connected with the lower door plate, so that the upper door plate and the lower door plate are meshed, the sealing reliability in any state is ensured, and the radioactive gas is prevented from entering a personnel operation area.
However, in the above two kinds of double-lid sealing apparatuses, the unlocking/locking mechanisms of the double-lid cannot synchronously complete the opening, closing, separating, and other actions, and originally, two independent sealing systems cannot be combined into a unified sealing system, and a sealing system for hermetically transferring materials needs to be further improved.
Disclosure of Invention
The purpose of the invention is as follows: aiming at the technical problems in the prior art, the double-cover locking mechanism capable of synchronously completing opening, closing, separating and other actions is provided.
The technical scheme is as follows: in order to achieve the purpose of the invention, the technical scheme adopted by the invention is as follows:
a method for realizing double-cover locking, which is characterized in that the method is realized by a double-cover locking mechanism,
the double-cover locking mechanism comprises a shielding barrel, a shielding barrel cover, an airtight transferring barrel and an airtight transferring barrel cover;
the shielding barrel cover is provided with a shielding barrel cover locking ring (3), and a shielding barrel cover lock catch (31) is fixedly arranged on the shielding barrel cover locking ring (3);
the upper end of the shielding barrel is provided with a barrel chamber locking block (5);
the locking ring (3) of the shielding barrel cover is rotated to enable the locking buckle (31) of the shielding barrel cover to be matched with the barrel chamber locking block (5) to lock/unlock the shielding barrel cover and the shielding barrel;
a barrel cover locking pin (6) is arranged at the lower end of the shielding barrel cover;
a barrel cover locking pin grooved wheel (4) is fixed at the upper part of the airtight transfer barrel cover, and a clamping groove is formed in the barrel cover locking pin grooved wheel (4); the barrel cover locking pin (6) is matched with the barrel cover locking pin grooved wheel (4) clamping groove to realize the locking/unlocking of the airtight transfer barrel cover and the shielding barrel cover;
when the airtight transferring barrel cover and the shielding barrel cover are unlocked, the shielding barrel cover and the shielding barrel are locked, and the airtight transferring barrel cover and the airtight transferring barrel are buckled; when the airtight transfer barrel cover and the shielding barrel cover are locked, the shielding barrel cover and the shielding barrel are unlocked, and the airtight transfer barrel cover and the shielding barrel cover are synchronously opened.
The transfer barrel cover and the barrel chamber sealing cover are combined together through the locking/unlocking mechanism to complete synchronous opening, closing, separating and other actions, and the closed material transfer operation is performed through the actions. After the two layers of covers are combined into a whole, the two layers of covers can be synchronously opened, the original two independent sealing systems are combined into a unified sealing system, and the outside of the system can not be polluted. After the double-layer cover complex body is restored to be buckled, the double-layer cover complex body can be unlocked into two independent sealing covers again, and the original unified sealing system is divided into two independent and separable sealing systems. The double cover refers to the sealing cover of the transferring barrel cover and the barrel chamber.
Furthermore, a locking cover/unlocking driving cylinder (1) is arranged on the shielding barrel cover, and the rotation of the locking ring (3) of the shielding barrel cover and the expansion of the locking pin (6) of the barrel cover are synchronously driven by the locking cover/unlocking driving cylinder (1).
The locking and unlocking actions of the transfer barrel cover and the barrel chamber sealing cover and the locking/unlocking actions of the barrel chamber sealing cover and the shielding barrel are driven by a single linear cylinder, so that the driving mechanism is simplified to the utmost extent, and the two actions are completely synchronous. When the barrel chamber sealing cover is locked with the shielding barrel, the barrel chamber sealing cover is unlocked with the transferring barrel cover, and the transferring barrel can be separated from butt joint; on the contrary, when the sealing cover of the barrel chamber is unlocked from the shielding barrel, the sealing cover is locked with the transferring barrel cover, and at the moment, the two sealing covers can be synchronously opened to start the material transferring operation.
The locking cover and the unlocking driving cylinder can be ｃA fesot DSNU-12-10-P-A linear motion double-acting cylinder, the air supply pressure is 6bar, the theoretical acting force is 51N, and the stroke is 10 mm. The linear motion output by the cylinder has double functions of driving the locking ring of the shielding barrel cover to rotate and realizing the locking and unlocking functions of the sealing cover and the shielding barrel; the locking pin is driven to stretch out and draw back so as to lock and unlock the box chamber sealing cover and the transfer barrel cover.
Further, a sealing ring is arranged between the shielding barrel cover and the airtight transferring barrel cover, when the shielding barrel cover is locked with the airtight transferring barrel cover, the outer surfaces of the shielding barrel cover and the airtight transferring barrel cover are tightly combined together through the sealing ring, and a double-cover complex is formed.
The sealing structure has the advantages that airtightness is realized between the sealing cover of the barrel chamber and the transferring barrel cover through the sealing ring, so that radioactive aerosol is prevented from permeating into a gap between the two layers of cover bodies to cause outer surface pollution. After the double covers are opened together, the outer surfaces of the two layers of cover bodies are tightly combined together and are sealed by the barrel chamber sealing cover and the transferring barrel cover sealing ring, so that the outer surfaces of the double covers cannot be polluted even if the double covers are exposed in radioactive aerosol. After separation of the double-capped composite, the "inside surface" of the composite becomes the outer surface of the independent system, which is not contaminated, and is in a "clean" state. When the double covers are closed, all surfaces polluted by radioactive aerosol can be closed by the system and are not exposed, and pollution caused by secondary volatilization is avoided.
Furthermore, a manual cover opening handle (7) is further arranged on the shielding barrel cover to control the shielding barrel cover to be opened and closed.
Furthermore, a barrel chamber sealing cover mandrel (2) is fixedly arranged in the middle of the shielding barrel cover.
Compared with the prior art, the method for realizing double-cover locking has the beneficial effects that:
(1) the device is suitable for storing and transporting volatile radioactive substances, the whole process of the transporting operation is kept in an airtight state, and the radioactive aerosol is prevented from leaking to a personnel operation area, so that the risk of radioactive aerosol pollution is obviously reduced;
(2) the automation degree is high. The automatic execution elements all adopt pneumatic elements, and the operation flows of butt joint/separation of double covers, opening of a container, cover buckling and the like are automatically completed, so that the reliability of the equipment is improved, and the failure rate of the equipment is reduced;
(3) meanwhile, the working intensity of an operator is reduced, and the use efficiency of the equipment is improved;
(4) by using the double-cover locking device of the invention and combining with other mechanisms of the sealed transfer system, the volatile radioactive substances can be directly transferred among different isolators without passing through an ear box or an air lock.
Drawings
FIG. 1 is a schematic view of a double-cap seal locking mechanism for carrying out the method of the present invention;
FIG. 2 is a side view of a dual cap seal locking mechanism for carrying out the method of the present invention;
in the figure: 1. locking/unlocking the driving cylinder; 2. a shielding barrel cover mandrel; 3. a locking ring of the shielding barrel cover; 31. a shielding barrel cover is locked; 4. a barrel cover locking pin grooved wheel; 5. a barrel chamber locking block; 6. a barrel cover locking pin; 7. and a manual uncovering handle.
Detailed Description
The present invention will be further illustrated with reference to the accompanying drawings and specific examples, which are carried out on the premise of the technical solution of the present invention, and it should be understood that these examples are only for illustrating the present invention and are not intended to limit the scope of the present invention.
As shown in fig. 1 and 2, the components of the double-lid locking mechanism of the present invention include a shielding barrel, a shielding barrel lid, an airtight transfer barrel and an airtight transfer barrel lid;
the shielding barrel cover is provided with a shielding barrel cover locking ring 3, and a shielding barrel cover lock catch 31 is fixedly arranged on the shielding barrel cover locking ring 3;
the upper end of the shielding barrel is provided with a barrel chamber locking block 5;
the locking ring 3 of the shielding barrel cover is rotated to enable the locking buckle 31 of the shielding barrel cover to be matched with the barrel chamber locking block 5 to realize locking/unlocking of the shielding barrel cover and the shielding barrel;
a barrel cover locking pin 6 is arranged at the lower end of the shielding barrel cover;
a barrel cover locking pin grooved wheel 4 is fixed at the upper part of the airtight transfer barrel cover, and a clamping groove is formed in the barrel cover locking pin grooved wheel 4; the barrel cover locking pin 6 is matched with the barrel cover locking pin grooved wheel 4 clamping groove to realize the locking/unlocking of the airtight transfer barrel cover and the shielding barrel cover;
when the airtight transferring barrel cover and the shielding barrel cover are unlocked, the shielding barrel cover and the shielding barrel are locked, and the airtight transferring barrel cover and the airtight transferring barrel are buckled; when the airtight transfer barrel cover and the shielding barrel cover are locked, the shielding barrel cover and the shielding barrel are unlocked, and the airtight transfer barrel cover and the shielding barrel cover are synchronously opened.
The transfer barrel cover and the barrel chamber sealing cover are combined together through the locking/unlocking mechanism to complete synchronous opening, closing, separating and other actions, and the closed material transfer operation is performed through the actions. After the two layers of covers are combined into a whole, the two layers of covers can be synchronously opened, the original two independent sealing systems are combined into a unified sealing system, and the outside of the system can not be polluted. After the double-layer cover complex body is restored to be buckled, the double-layer cover complex body can be unlocked into two independent sealing covers again, and the original unified sealing system is divided into two independent and separable sealing systems. The double cover refers to the sealing cover of the transferring barrel cover and the barrel chamber.
As a further improvement, a locking cover/unlocking driving cylinder 1 is arranged on the shielding barrel cover, and the rotation of the locking ring 3 of the shielding barrel cover and the expansion and contraction of the locking pin 6 of the rotating barrel cover are synchronously driven by the locking cover/unlocking driving cylinder 1.
The locking and unlocking actions of the transfer barrel cover and the barrel chamber sealing cover and the locking/unlocking actions of the barrel chamber sealing cover and the shielding barrel are driven by a single linear cylinder, so that the driving mechanism is simplified to the utmost extent, and the two actions are completely synchronous. When the barrel chamber sealing cover is locked with the shielding barrel, the barrel chamber sealing cover is unlocked with the transferring barrel cover, and the transferring barrel can be separated from butt joint; on the contrary, when the sealing cover of the barrel chamber is unlocked from the shielding barrel, the sealing cover is locked with the transferring barrel cover, and at the moment, the two sealing covers can be synchronously opened to start the material transferring operation.
The locking cover and the unlocking driving cylinder can be ｃA fesot DSNU-12-10-P-A linear motion double-acting cylinder, the air supply pressure is 6bar, the theoretical acting force is 51N, and the stroke is 10 mm.
As a further improvement, a sealing ring is arranged between the shielding barrel cover and the airtight transferring barrel cover, when the shielding barrel cover is locked with the airtight transferring barrel cover, the outer surfaces of the shielding barrel cover and the airtight transferring barrel cover are tightly combined together through the sealing ring, and a double-cover complex is formed.
As a further improvement, a manual cover opening handle 7 is further arranged on the shielding barrel cover to control the shielding barrel cover to be opened and closed.
As a further improvement, a barrel chamber sealing cover mandrel 2 is fixedly arranged in the middle of the shielding barrel cover.
Compared with the prior art, the double-cover locking mechanism has the beneficial effects that: the device is suitable for storing and transporting volatile radioactive substances, the whole process of the transporting operation is kept in an airtight state, and the radioactive aerosol is prevented from leaking to a personnel operation area, so that the risk of radioactive aerosol pollution is obviously reduced; the automation degree is high. The automatic execution elements all adopt pneumatic elements, and the operation flows of butt joint/separation of double covers, opening of a container, cover buckling and the like are automatically completed, so that the reliability of the equipment is improved, and the failure rate of the equipment is reduced; meanwhile, the working intensity of an operator is reduced, and the use efficiency of the equipment is improved; by using the double-cover locking device of the invention and combining with other mechanisms of the sealed transfer system, the volatile radioactive substances can be directly transferred among different isolators without passing through an ear box or an air lock.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (4)
1. A method for realizing double-cover locking, which is characterized in that the method is realized by a double-cover locking mechanism,
the double-cover locking mechanism comprises a shielding barrel, a shielding barrel cover, an airtight transferring barrel and an airtight transferring barrel cover;
the shielding barrel cover is provided with a shielding barrel cover locking ring (3), and a shielding barrel cover lock catch (31) is fixedly arranged on the shielding barrel cover locking ring (3);
the upper end of the shielding barrel is provided with a barrel chamber locking block (5);
the locking ring (3) of the shielding barrel cover is rotated to enable the locking buckle (31) of the shielding barrel cover to be matched with the barrel chamber locking block (5) to lock/unlock the shielding barrel cover and the shielding barrel;
a barrel cover locking pin (6) is arranged at the lower end of the shielding barrel cover;
a barrel cover locking pin grooved wheel (4) is fixed at the upper part of the airtight transfer barrel cover, and a clamping groove is formed in the barrel cover locking pin grooved wheel (4); the barrel cover locking pin (6) is matched with the barrel cover locking pin grooved wheel (4) clamping groove to realize the locking/unlocking of the airtight transfer barrel cover and the shielding barrel cover;
when the airtight transferring barrel cover and the shielding barrel cover are unlocked, the shielding barrel cover and the shielding barrel are locked, and the airtight transferring barrel cover and the airtight transferring barrel are buckled; when the airtight transfer barrel cover and the shielding barrel cover are locked, the shielding barrel cover and the shielding barrel are unlocked, and the airtight transfer barrel cover and the shielding barrel cover are synchronously opened.
2. A method of achieving double cap locking according to claim 1, wherein: the shielding barrel cover is provided with a locking cover/unlocking driving cylinder (1), and the rotation of a locking ring (3) of the shielding barrel cover and the extension of a locking pin (6) of the barrel cover are synchronously driven by the locking cover/unlocking driving cylinder (1).
3. A method of achieving double cap locking according to claim 1, wherein: and when the shielding barrel cover is locked with the airtight transferring barrel cover, the outer surfaces of the shielding barrel cover and the airtight transferring barrel cover are tightly combined together through the sealing ring to form a double-cover complex.
4. A method of achieving double cap locking according to claim 1, wherein: and a manual cover opening handle (7) is further arranged on the shielding barrel cover to control the shielding barrel cover to be opened and closed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811099206.9A CN109378102B (en) | 2018-09-20 | 2018-09-20 | Method for realizing double-cover locking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811099206.9A CN109378102B (en) | 2018-09-20 | 2018-09-20 | Method for realizing double-cover locking |
Publications (2)
| Publication Number | Publication Date |
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| CN109378102A CN109378102A (en) | 2019-02-22 |
| CN109378102B true CN109378102B (en) | 2020-11-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811099206.9A Active CN109378102B (en) | 2018-09-20 | 2018-09-20 | Method for realizing double-cover locking |
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| CN (1) | CN109378102B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114684556B (en) * | 2022-03-02 | 2024-05-31 | 中国核电工程有限公司 | Vertical sealing transfer device |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9110796D0 (en) * | 1991-05-18 | 1991-07-10 | Atomic Energy Authority Uk | Double lid system |
| CN102881345B (en) * | 2012-09-21 | 2015-04-15 | 中国核电工程有限公司 | Multi-point locked double-cover sealing device |
| FR2998822B1 (en) * | 2012-12-04 | 2015-02-20 | Commissariat Energie Atomique | LOCKING / UNLOCKING SYSTEM, APPLICATION TO SAMPLE DOOR HANDLING OF NUCLEAR MATERIALS |
| CN104485145B (en) * | 2014-10-29 | 2017-03-15 | 中国核电工程有限公司 | The double-canopy sealing device of gravity type |
| CN107680701B (en) * | 2017-09-22 | 2021-09-17 | 中国核电工程有限公司 | Double-barrel-cover sealing device |
| CN109378098B (en) * | 2018-09-20 | 2023-12-19 | 原子高科股份有限公司 | Double-cover locking mechanism |
| CN209103833U (en) * | 2018-09-20 | 2019-07-12 | 原子高科股份有限公司 | A kind of double-canopy retaining mechanism |
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2018
- 2018-09-20 CN CN201811099206.9A patent/CN109378102B/en active Active
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| CN109378102A (en) | 2019-02-22 |
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