CN210925515U - Shielding cover plate - Google Patents
Shielding cover plate Download PDFInfo
- Publication number
- CN210925515U CN210925515U CN201921181297.0U CN201921181297U CN210925515U CN 210925515 U CN210925515 U CN 210925515U CN 201921181297 U CN201921181297 U CN 201921181297U CN 210925515 U CN210925515 U CN 210925515U
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- shielding cover
- cover plate
- shielding
- plate
- fixed
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Abstract
The utility model relates to a shielding cover plate, belonging to a radioactivity-proof transportation tool, comprising a fixed shielding cover plate fixedly arranged on a shielding container; the movable shielding cover plate is movably arranged on the shielding container, is connected with the fixed shielding cover plate through movement, and is combined with the fixed shielding cover plate to seal the inlet of the shielding container; or the movable shielding cover plate is separated from the fixed shielding cover plate through movement, and an access hole communicated with the inside of the shielding container is formed between the movable shielding cover plate and the fixed shielding cover plate; the fixed shielding cover plate and the movable shielding cover plate are detachably connected through a connecting piece. The utility model discloses a fixed shielding apron that can close or separate and removal shielding apron satisfy the shielding effect during closed, can guarantee again that shielding apron can the dead radioactive liquid waste vehicular conveying system of safe lock in the transportation, can open during the maintenance.
Description
Technical Field
The utility model relates to a shielding apron, especially a shielding apron device for radioactive liquid waste vehicular conveying system belongs to the radioactivity-proof transport means.
Background
In recent years, some nuclear research units (nuclear power stations) in China attempt to carry out in-situ transportation of radioactive liquid wastes by using a vehicle-mounted transportation system which basically comprises two parts, namely a transportation tank car (a cargo bag) and a tractor, wherein the main body part of the transportation tank car is a transportation container mainly comprising a pressure container layer, an air interlayer and a shielding layer, wherein the shielding layer comprises an inner protective layer, a lead shielding body and an outer protective layer, in order to prevent radiation hazards to transportation operators caused by rays such as β and gamma rays generated by the radioactive wastes in the transportation container, the upper part of the transportation container is provided with a shielding cover plate which is shielded with a certain thickness with the main container, and in order to prevent the maintenance requirements of an instrument valve under the shielding cover plate, the shielding cover plate is usually made into a split structure, wherein one part of the shielding cover plate is fixedly shielded, the other part of the shielding cover plate is shielded to maintain the instrument valve at the top of the container, the shielding cover plate is opened along a shielding cover plate or a shielding cover plate is opened when the instrument valve is maintained, and a door lock structure can be normally operated without penetrating through a door.
The partial transportation section in a certain research institute and the door opening of the radioactive waste generating and receiving facility have large gradient, and the phenomenon that the locking device of the movable shielding cover plate fails in the actual operation occurs. In the moving process of the vehicle-mounted conveying device, the self weight of the moving shielding cover plate is large, and the shielding cover plate freely moves back and forth on the slide rail to damage a vehicle-mounted conveying system frame to a certain degree.
SUMMERY OF THE UTILITY MODEL
To the above problem, the utility model provides a shielding cover plate, it is including the fixed shielding cover plate that can close or separate and remove shielding cover plate, satisfies the shielding effect when closed, can guarantee again that shielding cover plate can the dead vehicular conveying system of radioactive liquid waste of safe lock in the transportation, can open during the maintenance.
The utility model provides a shielding cover plate, include:
a fixed shielding cover plate fixedly arranged on the shielding container; and
the movable shielding cover plate is movably arranged on the shielding container, is movably connected with the fixed shielding cover plate and is combined with the fixed shielding cover plate to seal the inlet of the shielding container; or the movable shielding cover plate is separated from the fixed shielding cover plate through movement, and an access hole communicated with the inside of the shielding container is formed between the movable shielding cover plate and the fixed shielding cover plate;
the fixed shielding cover plate and the movable shielding cover plate are detachably connected through a connecting piece.
The utility model is further improved in that one side of the fixed shielding cover plate is provided with a first connecting plate; a second connecting plate is arranged on one side of the movable shielding cover plate;
wherein, the first connecting plate and the second connecting plate are connected through a connecting piece.
The utility model is further improved in that the connecting piece comprises a plurality of fixing pins, and a plurality of pin holes are respectively arranged on the first connecting plate and the second connecting plate; the fixing pin is inserted into the pin hole to connect the first connecting plate and the second connecting plate.
The utility model discloses a further improvement lies in, the fixed pin includes the fixed pin pole, the one end of fixed pin pole is provided with the fixed pin head, and the other end is provided with the anti-vibration ball that drops.
The utility model discloses a further improvement lies in, the pinhole is the inclined hole that has certain inclination in vertical direction.
The utility model discloses a further improvement lies in, fixed shielding apron includes the fixed shielding apron main part of semicircular, the straight edge of fixed shielding apron main part is provided with first stair structure, the thinner position of first stair structure forms first backup pad.
The utility model discloses a further improvement lies in, the arc edge of fixed shielding apron main part is provided with the first backup pad of rectangle.
The utility model discloses a further improvement lies in, the removal is shielded the apron and is included the semicircular removal and is shielded the apron main part, the straight edge of removal shielding apron main part is provided with second stair structure, the thinner position of second stair structure forms the second backup pad;
the second step is matched with the first step, and the first supporting plate and the second supporting plate are stacked and connected.
The utility model discloses a further improvement lies in, the arc edge that removes the shielding apron main part is provided with the second backup pad of rectangle.
The utility model is further improved in that a support frame is arranged at the upper end of the shielding container, and the first support plate is fixedly connected with the support frame; and, the support frame provides a guide rail for the second support plate to slide.
Compared with the prior art, the utility model has the advantages of:
shielding apron, its fixed shielding apron that can close or separate and remove shielding apron satisfy the shielding effect when closed, can guarantee again that shielding apron can the dead liquid waste vehicular conveying system of safe lock in the transportation, can open during the maintenance.
Drawings
Fig. 1 is a schematic view of the installation effect of a shield cover according to an embodiment of the present invention;
fig. 2 is a schematic structural view of a shield cover plate according to an embodiment of the present invention;
fig. 3 is a schematic structural view of a fixed shield cover plate according to an embodiment of the present invention;
fig. 4 is a schematic structural view of a mobile shield cover according to an embodiment of the present invention;
fig. 5 is a schematic structural view of a retaining pin according to an embodiment of the present invention;
fig. 6 is a schematic view of the mounting of a retaining pin according to an embodiment of the invention.
In the drawings, like parts are provided with like reference numerals. The figures are not drawn to scale.
The meaning of the reference symbols in the drawings is as follows: 1. fixed shielding apron, 2, remove shielding apron, 3, connecting piece, 4, shielding container, 11, fixed shielding apron main part, 12, first backup pad, 13, first connecting plate, 14, first stair structure, 15, pinhole, 21, remove shielding apron main part, 22, second backup pad, 23, second connecting plate, 24, second stair structure, 25, pinhole, 31, fixed pin pole, 32, fixed pin head, 33, the ball that drops of antivibration, 41, support frame.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
Fig. 1 schematically shows a shielding cover plate according to an embodiment of the invention. According to the utility model discloses a shielding apron, it is including the fixed shielding apron that can close or separate and remove the shielding apron, satisfies the shielding effect when closed, can guarantee again that shielding apron can the dead liquid waste vehicular conveying system of safe lock in the transportation, can open during the maintenance.
As shown in fig. 1 and 2, the shield cover of the present embodiment includes a fixed shield cover 1. The fixed shield cover 1 is fixed to the upper end of the shield container 4 and seals a part of the entrance of the shield container 4. The shielding cover of the present embodiment further includes a movable shielding cover 2, and the movable shielding cover 2 can move at the entrance of the shielding container 4, and can be connected to or separated from the fixed shielding cover 1 by moving. When the movable shield cover 2 is moved to be connected to the fixed shield cover 1, the movable shield cover 2 is combined with the fixed shield cover 1 to form an integrated cover capable of sealing the entrance of the shield container 4. When the movable shield cover 2 is moved to a position separated from the fixed shield cover 1, an opening through which the inside and the outside of the shield container 4 can be communicated is formed between the movable shield cover 2 and the fixed shield cover 1 as an access opening of the shield container 4. In this embodiment, fixed shielding apron 1 with can link to each other through connecting piece 3 between the removal shielding apron 2, fixed shielding apron 1 is connected with removal shielding apron 2 with detachable mode to connecting piece 3, when needs overhaul and to fixed shielding apron 1 and removal shielding apron 2 separation, dismantles connecting piece 3.
In using the shield cover according to the present embodiment, radioactive liquid is contained in the shield container 4, the entrance of the shield container 4 is closed by moving the movable shield cover 2, and the movable shield cover 2 and the fixed shield cover 1 are connected by the connecting member 3, so that radioactive radiation of radioactive waste can be effectively shielded. When the maintenance is needed, the movable shielding cover plate 2 is moved to be separated from the fixed shielding cover plate 1, and a maintenance opening is formed. The maintenance operation is more convenient.
In one embodiment, as shown in fig. 3 and 4, a first connection plate 13 is provided at one side of the fixed shield cover 1. A second connecting plate 23 is provided at one side of the movable shield cover 2. The first connecting plate and the second connecting plate 23 are oppositely arranged, and the first connecting plate 13 and the second connecting plate 23 can be matched and connected in the process of moving the movable shielding cover plate 2. Wherein the first connecting plate 13 and the second connecting plate 23 are connected by the connecting piece 3.
In a preferred embodiment, as shown in fig. 5, the connecting member 3 includes a plurality of fixing pins, and a plurality of pin holes are provided in the first connecting plate 13, the number of the pin holes being the same as the number of the fixing pins. The second connecting plate 23 is also provided with a plurality of pin holes, the number of the pin holes on the second connecting plate 23 is the same as that of the pin holes on the first connecting plate 13, and when the first connecting plate 13 is matched with the second connecting plate 23, the pin holes on the first connecting plate 13 are aligned with the pin holes on the second connecting plate 23. The fixing pins pass through the pin holes of the first connecting plate 13 and the second connecting plate 23 to connect the first connecting plate 13 and the second connecting plate 23.
In one embodiment, the fixing pin comprises a fixing pin rod 31, and the fixing pin rod 31 is of a cylindrical structure, and the diameter of the cross section of the fixing pin rod is matched with the hole diameter of the pin hole. One end of the fixing pin rod 31 is provided with a fixing pin head 32, the width of the fixing pin head 32 is larger than the diameter of the cross section of the fixing pin rod 31, and the width of the fixing pin head 32 is larger than the diameter of the pin hole. In the present embodiment, the fixing pin 31 is provided with the vibration-drop preventing ball 33, and the vibration-drop preventing ball 33 is provided on the opposite side of the fixing pin head 32 and on the side of the fixing pin 31. The anti-vibration/drop ball 33 has a certain elasticity in the fixing pin 31 and can be inserted into the pin hole by elasticity or rolling.
When the shield cover according to the present embodiment is used, the anti-vibration falling ball 33 elastically extends and contracts into the inside of the fixing pin 31 when the fixing pin 31 is inserted into the pin hole, and slides on the inner wall of the pin hole as the fixing pin 31 is inserted. When the fixing pin 31 is fully inserted into the pin hole, the fixing pin head 32 is outside the pin hole and is attached to the outer surface of the first connecting plate 13, and the anti-vibration falling ball 33 is located below the inner surface of the second connecting plate 23 and is popped up, so that the anti-vibration falling ball 33 is caught at the lower portion of the entire shield cover. When the vibration happens, the fixed pin cannot fall off due to the clamping effect of the anti-vibration falling ball 33, and the transportation safety is ensured. When the pin needs to be taken out, the fixing pin head 32 is pulled by force, the anti-vibration falling ball 33 rebounds, and the fixing pin rod 31 is pulled out smoothly. In this embodiment, the problem that the fixing pin falls off due to vibration in the transportation process is solved by providing the vibration-fall-preventing ball 33.
In one embodiment, as shown in fig. 6, the pin holes are inclined holes having a certain inclination angle in the vertical direction (i.e., in the thickness direction of the fixed shield cover 1 and the movable shield cover 2). Preferably, the inclination angle is between 10 and 45 degrees. The small gap between the pin hole and the fixing pin can be used for effectively preventing the rays generated by radioactive waste from radiating through the pin hole by setting a certain angle for the pin hole.
In a preferred embodiment, as shown in fig. 3, the fixed shield cover 1 includes a fixed shield cover body 11, and the fixed shield cover body 11 has a semicircular structure including a straight side and a semicircular arc side. The first connection plate 13 is disposed on the straight side of the fixed shield cover main body 11. Preferably, a groove along the thickness direction is provided on the straight edge of the fixed shielding cover plate main body 11, forming a step structure. The first connection plate 13 is formed at a thinner portion of the groove. In the present embodiment, the recess is located on the lower surface side of the fixed shield cover main body 11, and the first connection plate 13 is located on the upper surface side of the fixed shield cover main body 11. Of course, the recess may be located on the upper surface side of the fixed shield cover main body 11, and the first connection plate 13 may be located on the lower surface side of the fixed shield cover main body 11.
In one embodiment, one side of the arc-shaped edge of the fixed shield cover plate body 11 is provided with a first support plate 12. Preferably, the first support plate 12 has a rectangular structure and is wrapped around the arc-shaped edge of the cover plate main body. One side of the arc-shaped edge of the moving shield cover main body 21 is provided with a second support plate 22. Preferably, the second support plate 22 has a rectangular structure and is wrapped around the arc-shaped edge of the cover plate main body.
In one embodiment, as shown in fig. 4, the movable shield cover 2 includes a movable shield cover body 21, and the structure of the movable shield cover body 21 is the same as or corresponding to the structure of the fixed shield cover body 11, and is a semicircular structure in this embodiment. The moving shield cover body 21 includes a straight side and a semicircular arc side. The second connecting plate 23 is disposed on a straight edge of the moving shield cover main body 21. Preferably, a groove along the thickness direction is provided on the straight edge of the moving shielding cover plate main body 21, forming a step structure. The second connecting plate 23 is formed at a thinner portion of the groove. In the present embodiment, the groove is located on the upper surface side of the moving shield cover main body 21, and the second connecting plate 23 is located on the lower surface side of the moving shield cover main body 21. Thus, the groove of the movable shield cover main body 21 complements the first connecting plate 13, the groove of the fixed shield cover main body 11 complements the second connecting plate 23, and the first connecting plate 13 is located above the second connecting plate 23, and they are stacked so that the pin holes of the first connecting plate 13 and the pin holes of the second connecting plate 23 are aligned.
Of course, it is also possible that the groove is located on the lower surface side of the movable shield cover main body 21 and the second connecting plate 23 is located on the upper surface side of the movable shield cover main body 21, so that the first connecting plate 13 and the second connecting plate 23 are stacked and supplemented with each other.
In the use of the shield cover according to the present embodiment, the first connecting plate 13 and the second connecting plate 23 are stacked together by the cooperation between the fixed shield cover main body 11 and the movable shield cover main body 21, so that the fixed shield cover main body 11 and the movable shield cover main body 21 form a cylindrical whole. In this way, the whole formed by the fixed shield cover main body 11 and the movable shield cover main body 21 matches the shape of the entrance of the shield container 4, ensuring the sealing and shielding effects.
In one embodiment, as shown in fig. 1, the shielding container 4 is provided with a support frame 41 at an upper end thereof, and the support frame 41 is a steel frame structure, wherein the support frame 41 includes a support structure fixed on a side wall of the shielding container 4, and two sets of parallel guide rails connected to the support structure. The width of the guide rail is the same as the width of the first support plate 12 and the second support plate 22. The first support plate 12 is fixedly connected with the support frame 41, and the second support plate 22 can slide on the guide rail.
While the invention has been described with reference to a preferred embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, the technical features mentioned in the embodiments can be combined in any way as long as there is no structural conflict. The present invention is not limited to the particular embodiments disclosed herein, but encompasses all technical solutions falling within the scope of the claims.
Claims (10)
1. A shielding cover, comprising:
a fixed shielding cover plate (1) fixedly arranged on the shielding container (4); and
the movable shielding cover plate (2) is movably arranged on the shielding container (4), the movable shielding cover plate (2) is connected with the fixed shielding cover plate (1) through movement, and is combined with the fixed shielding cover plate (1) to seal the inlet of the shielding container (4); or the movable shielding cover plate (2) is separated from the fixed shielding cover plate (1) through movement, and an access hole communicated with the interior of the shielding container (4) is formed between the movable shielding cover plate and the fixed shielding cover plate (1);
the fixed shielding cover plate (1) and the movable shielding cover plate (2) are detachably connected through a connecting piece (3).
2. Shielding cover according to claim 1, characterized in that one side of the fixed shielding cover (1) is provided with a first connecting plate (13); a second connecting plate (23) is arranged on one side of the movable shielding cover plate (2);
wherein the first connecting plate (13) and the second connecting plate (23) are connected through a connecting piece (3).
3. The shielding cover according to claim 2, characterized in that the connecting member (3) comprises a plurality of fixing pins, and the first connecting plate (13) and the second connecting plate (23) are respectively provided with a plurality of pin holes; the fixing pin is inserted into the pin hole to connect the first connecting plate (13) and the second connecting plate (23).
4. The shielding cover according to claim 3, characterized in that the securing pin comprises a securing pin rod (31), the securing pin rod (31) being provided at one end with a securing pin head (32) and at the other end with an anti-vibration drop-off ball (33).
5. The shielding cover plate according to claim 3 or 4, wherein the pin holes are inclined holes having a certain inclination angle in a vertical direction.
6. Shielding cover plate according to one of claims 2 to 4, wherein the stationary shielding cover plate (1) comprises a semicircular stationary shielding cover plate body (11), the straight edge of the stationary shielding cover plate body (11) being provided with a first step structure (14), the thinner position of the first step structure (14) forming the first support plate (12).
7. Shielding cover plate according to claim 6, wherein the curved edge of the fixed shielding cover plate body (11) is provided with a rectangular first support plate (12).
8. The shielding cover according to claim 7, characterized in that the moving shielding cover (2) comprises a semi-circular moving shielding cover body (21), the straight edge of the moving shielding cover body (21) is provided with a second step structure (24), the thinner position of the second step structure (24) forms a second support plate (22);
wherein the second step and the first step are mutually matched, and the first support plate (12) and the second support plate (22) are overlapped and connected.
9. Shielding cover plate according to claim 8, wherein the curved edge of the moving shielding cover plate body (21) is provided with a rectangular second support plate (22).
10. Shielding cover plate according to claim 9, characterized in that the shielding container (4) is provided at its upper end with a support bracket (41), the first support plate (12) being fixedly connected to the support bracket (41); and, the support frame (41) provides a guide rail for the second support plate (22) to slide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921181297.0U CN210925515U (en) | 2019-07-25 | 2019-07-25 | Shielding cover plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921181297.0U CN210925515U (en) | 2019-07-25 | 2019-07-25 | Shielding cover plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210925515U true CN210925515U (en) | 2020-07-03 |
Family
ID=71363624
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921181297.0U Expired - Fee Related CN210925515U (en) | 2019-07-25 | 2019-07-25 | Shielding cover plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210925515U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112478099A (en) * | 2020-12-02 | 2021-03-12 | 上海江南长兴造船有限责任公司 | Ship cargo space fan protection method |
| CN112478098A (en) * | 2020-12-02 | 2021-03-12 | 上海江南长兴造船有限责任公司 | Ship cargo hold fan protection device |
-
2019
- 2019-07-25 CN CN201921181297.0U patent/CN210925515U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112478099A (en) * | 2020-12-02 | 2021-03-12 | 上海江南长兴造船有限责任公司 | Ship cargo space fan protection method |
| CN112478098A (en) * | 2020-12-02 | 2021-03-12 | 上海江南长兴造船有限责任公司 | Ship cargo hold fan protection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200703 Termination date: 20210725 |