CN109378098B - Double-cover locking mechanism - Google Patents
Double-cover locking mechanism Download PDFInfo
- Publication number
- CN109378098B CN109378098B CN201811099057.6A CN201811099057A CN109378098B CN 109378098 B CN109378098 B CN 109378098B CN 201811099057 A CN201811099057 A CN 201811099057A CN 109378098 B CN109378098 B CN 109378098B
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- Prior art keywords
- cover
- shielding
- barrel cover
- barrel
- locking
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- 230000007246 mechanism Effects 0.000 title claims abstract description 26
- 238000007789 sealing Methods 0.000 claims abstract description 60
- 230000008602 contraction Effects 0.000 claims abstract description 3
- 230000009977 dual effect Effects 0.000 claims description 6
- 230000002285 radioactive effect Effects 0.000 abstract description 10
- 239000000443 aerosol Substances 0.000 abstract description 9
- 239000000941 radioactive substance Substances 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 3
- 230000008569 process Effects 0.000 abstract description 3
- 230000009471 action Effects 0.000 description 13
- 230000006872 improvement Effects 0.000 description 7
- 230000005484 gravity Effects 0.000 description 4
- 210000001503 joint Anatomy 0.000 description 4
- 230000001360 synchronised effect Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
Classifications
-
- 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
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Closures For Containers (AREA)
Abstract
The invention relates to a double-cover locking mechanism, and belongs to the technical field of sealing devices. When the shielding barrel cover and the shielding barrel are locked, the barrel cover locking pin is retracted into the barrel chamber sealing cover, the airtight transfer barrel cover and the shielding barrel cover are unlocked, and the airtight transfer barrel cover and the airtight transfer barrel are buckled; when the shielding barrel cover and the shielding barrel are unlocked, the barrel cover locking pin stretches into the clamping groove of the barrel cover locking pin grooved wheel, the shielding barrel cover and the airtight transfer barrel cover are locked, and the airtight transfer 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 shielding barrel cover locking ring and the expansion and contraction of the barrel cover locking pin are synchronously driven by the locking cover/unlocking driving cylinder. The invention is suitable for storing and transporting volatile radioactive substances, the whole transportation operation process keeps 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 double-cover locking mechanism, and belongs to the technical field of sealing devices.
Background
In the prior double-cover sealing technology, the application number disclosed by the national bureau is 201410592640.6 patent application document of gravity type double-cover sealing device, the publication date of the patent application document is 2015, 4 and 1, and the application relates to a gravity type double-cover sealing device, which comprises an upper cover component and a lower cover component, wherein the upper cover component comprises an upper flange and an upper cover arranged in an inner hole of the upper flange; the lower cover assembly 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 grapple at the lower part of the double-cover locking mechanism or can be separated from the lower cover under the action of self gravity. The device utilizes the gravity effect of the parts 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 document of application number 201210356649.8 published by the national bureau is a multi-point locking double-cover sealing device, the publication date of the patent application document is 2013, 1 month and 16 days, the application relates to a multi-point locking double-cover sealing device, the device comprises an upper door component, a lower door component and a special tool, the upper door component and the lower door component all comprise a round 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 arranged around the center of the door plate, the lower end of a door bolt of the upper door locking and unlocking device is slotted, the door bolt penetrates through the lower door plate to be matched with a locking shaft of the lower door locking and unlocking device, the lower end of the locking shaft is connected with a clamping plate which rotates together with the locking shaft, and the clamping plate is screwed into or screwed out of a groove on the lower door seat through the special tool, so that the lower door seat and the lower door plate are separated; and meanwhile, the door bolts are connected with the lower door plate, so that the engagement of the upper door plate and the lower door plate is realized, the sealing reliability in any state is ensured, and the radioactive gas is ensured not to enter a personnel operation area.
However, in the above two double-lid sealing devices, the unlocking/locking mechanism of the double lid cannot synchronously complete the actions of opening, closing, separating, and the like, and the two independent sealing systems cannot be combined into a unified sealing system, so that the sealing system for hermetically transferring the materials needs to be further improved.
Disclosure of Invention
The invention aims to: aiming at the technical problems in the prior art, the double-cover locking mechanism capable of synchronously completing the actions of opening, closing, separating and the like is provided.
The technical scheme is as follows: in order to achieve the above object, the present invention adopts the following technical scheme:
the double-cover sealing mechanism comprises a shielding barrel, a shielding barrel cover, an airtight transfer barrel and an airtight transfer barrel cover;
the shielding barrel cover is provided with a shielding barrel cover locking ring, and a shielding barrel cover lock catch is fixedly arranged on the shielding barrel cover locking ring;
a barrel chamber locking block is arranged at the upper end of the shielding barrel;
the locking ring of the shielding barrel cover is rotated to enable the locking buckle of the shielding barrel cover to be matched with the locking block of the barrel chamber so as to lock and unlock the shielding barrel cover and the shielding barrel;
a barrel cover locking pin is arranged at the lower end of the shielding barrel cover;
a barrel cover locking pin sheave is fixed at the upper part of the airtight transfer barrel cover, and a clamping groove is formed in the barrel cover locking pin sheave; the locking/unlocking of the airtight transfer barrel cover and the shielding barrel cover is realized by matching the barrel cover locking pin with the barrel cover locking pin grooved pulley clamping groove;
when the airtight transfer barrel cover and the shielding barrel cover are unlocked, the shielding barrel cover and the shielding barrel are locked, and the airtight transfer barrel cover and the airtight transfer barrel are buckled; when the airtight transfer bucket cover and the shielding bucket cover are locked, the shielding bucket cover and the shielding bucket are unlocked, and the airtight transfer bucket cover and the shielding bucket cover are synchronously opened and closed.
The system has the advantages that the transferring barrel cover and the barrel chamber sealing cover are combined together through the locking/unlocking mechanism to finish synchronous opening, closing, separating and other actions, and the system performs the airtight ground material transferring operation through the actions. After the two layers of covers are combined into a whole, the two layers of covers can be synchronously opened, and the two independent sealing systems are combined into a unified sealing system, so that the outside of the system is not polluted. When the double-layer cover complex is restored to be buckled, the double-layer cover complex can be unlocked again to form two independent sealing covers, and the original unified sealing system is divided into two independent and separable sealing systems. The double covers refer to the transfer barrel cover and the barrel chamber sealing cover.
As a further improvement, a locking cover/unlocking driving cylinder is arranged on the shielding barrel cover, and the rotation of the shielding barrel cover locking ring and the expansion and contraction of the barrel cover locking pin are synchronously driven by the locking cover/unlocking driving cylinder.
The locking and unlocking actions of the transfer barrel cover and the barrel chamber sealing cover and the locking and 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 ensured to be simplified most, and the two actions are ensured to be completely synchronous. When the barrel chamber sealing cover is locked with the shielding barrel, the barrel chamber sealing cover is unlocked with the transfer barrel cover, and the transfer barrel can be separated from butt joint; on the contrary, when the barrel chamber sealing cover and the shielding barrel are unlocked, the barrel chamber sealing cover and the transferring barrel cover are locked, and at the moment, the two layers of sealing covers can be synchronously opened to start material transferring operation.
The locking cover and unlocking driving cylinder can be a double-acting cylinder with the model of festo DSNU-12-10-P-A linear motion, the air supply pressure is 6bar, the theoretical acting force is 51N, and the stroke is 10mm. The linear motion output by the cylinder has double functions, and drives the locking ring of the shielding barrel cover to rotate, so that the locking and unlocking functions of the sealing cover and the shielding barrel are realized; the locking pin is driven to stretch out and draw back so as to lock and unlock the box sealing cover and the transfer barrel cover.
A sealing ring is arranged between the shielding barrel cover and the airtight transfer barrel cover, and when the shielding barrel cover and the airtight transfer barrel cover are locked, the outer surfaces of the shielding barrel cover and the airtight transfer barrel cover are tightly combined together through the sealing ring to form a double-cover complex.
The sealing ring has the advantages that the sealing ring is used for realizing air tightness between the barrel chamber sealing cover and the transfer barrel cover, so that the radioactive aerosol can not permeate into a gap between two layers of cover bodies to pollute the outer surface. When the double covers are opened together, the outer surfaces of the two layers of cover bodies are tightly combined together and sealed by the barrel chamber sealing cover and the transfer barrel cover sealing ring, so that the outer surfaces of the double covers are not polluted even if the double covers are exposed to radioactive aerosol. After the double-cap composite is separated, the "inner surface" of the composite becomes the outer surface of the independent system, which is not contaminated, in a "clean" state. When the double covers are closed, all surfaces contaminated by radioactive aerosol are closed by the system, and the surfaces are not exposed, so that pollution caused by secondary volatilization is avoided.
As a further improvement, the shielding barrel cover is also provided with a manual cover opening handle for controlling the opening and closing of the shielding barrel cover.
As a further improvement, a barrel chamber sealing cover mandrel 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:
(1) The device is suitable for storing and transporting volatile radioactive substances, the whole transportation operation process keeps an airtight state, radioactive aerosol is prevented from leaking to a personnel operation area, and the risk of radioactive aerosol pollution is obviously reduced;
(2) The degree of automation is high. The automatic executing elements are all pneumatic elements, and the operation flows of butt joint/separation of double covers, container opening, 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 operators is reduced, and the use efficiency of equipment is improved;
(4) By using the double-cover locking device disclosed by the invention, the volatile radioactive substances can be directly transported between different isolators by combining other mechanisms of the sealed transport system without passing through an ear box or an air lock.
Drawings
FIG. 1 is a schematic view of a dual cap seal locking mechanism of the present invention;
FIG. 2 is a side view of the dual cap seal locking mechanism of the present invention;
in the figure: 1. locking/unlocking driving cylinder; 2. a shielding barrel cover mandrel; 3. a locking ring of the shielding barrel cover; 31. locking the shielding barrel cover; 4. a barrel cover locking pin grooved pulley; 5. a barrel chamber locking block; 6. a barrel cover locking pin; 7. a manual uncapping handle.
Detailed Description
The invention will be further illustrated by the following description of specific examples, which are given in connection with the accompanying drawings and are to be construed as illustrative only and not limiting the scope of the invention.
As shown in fig. 1 and 2, the double-cover locking mechanism of the invention comprises a shielding barrel, a shielding barrel cover, an airtight transfer barrel and an airtight transfer 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 locking block 5 of the barrel chamber so as to lock and unlock the shielding barrel cover and the shielding barrel;
the lower end of the shielding barrel cover is provided with a barrel cover locking pin 6;
a barrel cover locking pin sheave 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 sheave 4; the locking/unlocking of the airtight transfer barrel cover and the shielding barrel cover is realized by matching the barrel cover locking pin 6 with the clamping groove of the barrel cover locking pin grooved wheel 4;
when the airtight transfer barrel cover and the shielding barrel cover are unlocked, the shielding barrel cover and the shielding barrel are locked, and the airtight transfer barrel cover and the airtight transfer barrel are buckled; when the airtight transfer bucket cover and the shielding bucket cover are locked, the shielding bucket cover and the shielding bucket are unlocked, and the airtight transfer bucket cover and the shielding bucket cover are synchronously opened and closed.
The system has the advantages that the transferring barrel cover and the barrel chamber sealing cover are combined together through the locking/unlocking mechanism to finish synchronous opening, closing, separating and other actions, and the system performs the airtight ground material transferring operation through the actions. After the two layers of covers are combined into a whole, the two layers of covers can be synchronously opened, and the two independent sealing systems are combined into a unified sealing system, so that the outside of the system is not polluted. When the double-layer cover complex is restored to be buckled, the double-layer cover complex can be unlocked again to form two independent sealing covers, and the original unified sealing system is divided into two independent and separable sealing systems. The double covers refer to the transfer barrel cover and the barrel chamber sealing cover.
As a further improvement, the shielding barrel cover is provided with a locking cover/unlocking driving cylinder 1, and the rotation of the shielding barrel cover locking ring 3 and the extension and retraction of the barrel cover locking pin 6 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 and 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 ensured to be simplified most, and the two actions are ensured to be completely synchronous. When the barrel chamber sealing cover is locked with the shielding barrel, the barrel chamber sealing cover is unlocked with the transfer barrel cover, and the transfer barrel can be separated from butt joint; on the contrary, when the barrel chamber sealing cover and the shielding barrel are unlocked, the barrel chamber sealing cover and the transferring barrel cover are locked, and at the moment, the two layers of sealing covers can be synchronously opened to start material transferring operation.
The locking cover and unlocking driving cylinder can be a double-acting cylinder with the model of festo DSNU-12-10-P-A linear motion, the air supply pressure is 6bar, the theoretical acting force is 51N, and the stroke is 10mm.
As a further improvement, a sealing ring is arranged between the shielding barrel cover and the airtight transfer barrel cover, and when the shielding barrel cover and the airtight transfer barrel cover are locked, the outer surfaces of the shielding barrel cover and the airtight transfer barrel cover are tightly combined together through the sealing ring to form a double-cover complex.
As a further improvement, the shielding barrel cover is also provided with a manual cover opening handle 7 for controlling the opening and closing of the shielding barrel cover.
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 transportation operation process keeps an airtight state, radioactive aerosol is prevented from leaking to a personnel operation area, and the risk of radioactive aerosol pollution is obviously reduced; the degree of automation is high. The automatic executing elements are all pneumatic elements, and the operation flows of butt joint/separation of double covers, container opening, 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 operators is reduced, and the use efficiency of equipment is improved; by using the double-cover locking device disclosed by the invention, the volatile radioactive substances can be directly transported between different isolators by combining other mechanisms of the sealed transport system without passing through an ear box or an air lock.
The foregoing is merely a preferred embodiment of the present invention and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention, which are intended to be comprehended within the scope of the present invention.
Claims (5)
1. The utility model provides a double-cover locking mechanism, double-cover locking mechanism includes shielding bucket, shielding bung, airtight transportation bucket and airtight transportation bung, its characterized in that:
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);
a barrel chamber locking block (5) is arranged at the upper end of the shielding barrel;
the shielding barrel cover locking ring (3) is rotated to enable the shielding barrel cover lock catch (31) to be matched with the barrel chamber locking block (5) so as to lock and 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 sheave (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 sheave (4); the locking/unlocking of the airtight transfer barrel cover and the shielding barrel cover is realized by matching the barrel cover locking pin (6) with the clamping groove of the barrel cover locking pin grooved wheel (4);
when the airtight transfer barrel cover and the shielding barrel cover are unlocked, the shielding barrel cover and the shielding barrel are locked, and the airtight transfer barrel cover and the airtight transfer barrel are buckled; when the airtight transfer bucket cover and the shielding bucket cover are locked, the shielding bucket cover and the shielding bucket are unlocked, and the airtight transfer bucket cover and the shielding bucket cover are synchronously opened.
2. A dual cap locking mechanism as claimed in claim 1 wherein: the shielding barrel cover is provided with a locking cover/unlocking driving cylinder (1), and rotation of the shielding barrel cover locking ring (3) and expansion and contraction of the barrel cover locking pin (6) are synchronously driven by the locking cover/unlocking driving cylinder (1).
3. A dual cap locking mechanism as claimed in claim 1 wherein: a sealing ring is arranged between the shielding barrel cover and the airtight transfer barrel cover, and when the shielding barrel cover and the airtight transfer barrel cover are locked, the outer surfaces of the shielding barrel cover and the airtight transfer barrel cover are tightly combined together through the sealing ring to form a double-cover complex.
4. A dual cap locking mechanism as claimed in claim 1 wherein: the shielding barrel cover is also provided with a manual cover opening handle (7) for controlling the opening and closing of the shielding barrel cover.
5. A dual cap locking mechanism as claimed in claim 1 wherein: the middle part of the shielding barrel cover is fixedly provided with a barrel chamber sealing cover mandrel (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811099057.6A CN109378098B (en) | 2018-09-20 | 2018-09-20 | Double-cover locking mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811099057.6A CN109378098B (en) | 2018-09-20 | 2018-09-20 | Double-cover locking mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109378098A CN109378098A (en) | 2019-02-22 |
| CN109378098B true CN109378098B (en) | 2023-12-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811099057.6A Active CN109378098B (en) | 2018-09-20 | 2018-09-20 | Double-cover locking mechanism |
Country Status (1)
| Country | Link |
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| CN (1) | CN109378098B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109378102B (en) * | 2018-09-20 | 2020-11-10 | 原子高科股份有限公司 | Method for realizing double-cover locking |
| CN111946187A (en) * | 2020-07-29 | 2020-11-17 | 中国原子能科学研究院 | Double-cover door meshing and separating structure |
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| CN1938789A (en) * | 2004-04-02 | 2007-03-28 | 核燃料公司 | Sealed device for docking different diameter movable enclosures |
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| CN102881345A (en) * | 2012-09-21 | 2013-01-16 | 中国核电工程有限公司 | Multi-point locked double-cover sealing device |
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| CN107680701A (en) * | 2017-09-22 | 2018-02-09 | 中国核电工程有限公司 | A kind of twin-tub cap sealing |
| 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 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012159119A1 (en) * | 2011-05-19 | 2012-11-22 | Holtec Internaitonal, Inc. | System and method for transferring and/or working near a radioactive payload using shield-gate apparatus |
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2018
- 2018-09-20 CN CN201811099057.6A patent/CN109378098B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2047538A1 (en) * | 1970-09-26 | 1972-03-30 | Kernforschung Gmbh Ges Fuer | Gas-tight closure for two openings of two containers that can be coupled to one another |
| EP0031879A1 (en) * | 1979-12-20 | 1981-07-15 | Kernforschungszentrum Karlsruhe Gmbh | Device for incorporating radioactive waste in concrete in waste containers |
| DE3338930A1 (en) * | 1983-10-27 | 1985-05-09 | Kernforschungszentrum Karlsruhe Gmbh, 7500 Karlsruhe | Bottom gate valve of a shielded transport flask for radioactive materials |
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| CN103245679A (en) * | 2013-05-10 | 2013-08-14 | 中国原子能科学研究院 | Transmission source device |
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| Publication number | Publication date |
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| CN109378098A (en) | 2019-02-22 |
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