CN204339802U - A kind of can the sealing hand hole device of quick locking - Google Patents
A kind of can the sealing hand hole device of quick locking Download PDFInfo
- Publication number
- CN204339802U CN204339802U CN201420698911.1U CN201420698911U CN204339802U CN 204339802 U CN204339802 U CN 204339802U CN 201420698911 U CN201420698911 U CN 201420698911U CN 204339802 U CN204339802 U CN 204339802U
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- cover plate
- hand hole
- outer cover
- inner cover
- sealing
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Abstract
The utility model relates to a kind of sealing device, particularly relate to a kind of can be used for nuclear industry hot operation negative pressure work box can the sealing hand hole device of quick locking.Its structure comprises hand hole ring, insert the outer cover plate in hand hole ring and inner cover plate, through the connecting rod in outer cover plate and inner cover plate axle center, the compacting part matched with connecting rod, outer cover plate and inner cover plate independently arrange and can produce displacement along the axis of hand hole ring, hand hole ring and be provided with elastic sealing element between outer cover plate and inner cover plate.Adopt sealing hand hole device described in the utility model, hand hole device good seal can be made, can realize rapidly opened and closed, and durable is without the need to frequent replacing, the requirement of frequent operation can be met.
Description
Technical field
The utility model relates to a kind of sealing device, particularly relate to a kind of can be used for nuclear industry hot operation negative pressure work box can the sealing hand hole device of quick locking.
Background technology
All hot operation can be related in nuclear power station, spentnuclear fuel reprocessing plant, Isotope production unit and core research unit.For protecting the safety of staff, many hot operations need to carry out in negative pressure work box.Usually on negative pressure work tank wall, be all provided with sealing hand hole device, staff carries out the associative operations such as material transfer by this hand hole.
The hand hole device of the current negative pressure work box used adopts hinge type end face seal mode mostly, and this kind of sealing means also exists and after long-time frequent opening and closing operations, easily make sealing gasket follow the string and cause leakage thus need the frequent shortcoming changed.
In order to make the negative pressure value in negative pressure work box remain stable, needing hand hole device good seal, and can realize rapidly opened and closed, developing a kind of hand hole device realizing above-mentioned functions, significant.
Utility model content
For the defect existed in prior art, the purpose of this utility model be to provide a kind of can the sealing hand hole device of quick locking, sealing hand hole device can make hand hole device good seal, can realize rapidly opened and closed, and durable is without the need to frequent replacing, the requirement of frequent operation can be met.
The technical solution of the utility model is as follows: a kind of can the sealing hand hole device of quick locking, comprise hand hole ring, insert the outer cover plate in hand hole ring and inner cover plate, through the connecting rod in outer cover plate and inner cover plate axle center, the compacting part matched with connecting rod, wherein, described outer cover plate and inner cover plate independently arrange and can produce displacement along the axis of hand hole ring, are provided with elastic sealing element at the outer fringe position of described outer cover plate and inner cover plate intersection.
As above can the sealing hand hole device of quick locking, wherein, described compacting part is the handle of cam structure.
As above can the sealing hand hole device of quick locking, wherein, described outer cover plate is provided with the back-up block producing with compacting part and extrude to compress outer cover plate.
As above can the sealing hand hole device of quick locking, wherein, described elastic sealing element is O shape circle.
As above can the sealing hand hole device of quick locking, wherein, the outer rim of described outer cover plate and inner cover plate intersection forms one for holding the annular seal groove of elastic sealing element.
As above can the sealing hand hole device of quick locking, wherein, described annular seal groove cross section is trapezoidal, and this cross-sectional sizes can change with outer cover plate and inner cover plate relative movement.
As above can the sealing hand hole device of quick locking, wherein, one end of described connecting rod is fixedly connected with adopting bonding mode between inner cover plate.
As above can the sealing hand hole device of quick locking, wherein, described connecting rod is connected with described compacting part by straight pin away from one end of inner cover plate.
Effect of the present utility model is: the sealing hand hole device adopting the utility model to provide, and can make hand hole device good seal, can realize rapidly opened and closed, and durable is without the need to frequent replacing, can meet the requirement of frequent operation.
Accompanying drawing explanation
Fig. 1 is the sealing Handhole in Header figure described in the utility model detailed description of the invention;
In figure: 1. hand hole ring, 2. inner cover plate, 3. elastic sealing element, 4. outer cover plate, 5. back-up block, 6. connecting rod, 7. straight pin, 8. compacting part, 9. annular seal groove.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is described in detail.
As shown in Figure 1, that a kind of that the utility model provides can the sealing hand hole device of quick locking, comprise hand hole ring 1, insert the outer cover plate 2 in hand hole ring 1 and inner cover plate 4, through the connecting rod 6 in outer cover plate 2 and inner cover plate 4 axle center, the handle 8 matched with connecting rod 6, wherein, described outer cover plate 2 and inner cover plate 4 are two pieces of cover plates that independently can produce displacement along the axis of hand hole ring 1, described hand hole ring 1 and be provided with the elastic sealing element 3 that can produce elastic deformation between outer cover plate 2 and inner cover plate 4, elastic sealing element can adopt O shape to enclose.
Hand hole ring 1 is fixed on negative pressure work tank wall, one end of connecting rod 6 adopts bonding mode to be fixedly connected with between inner cover plate 2, the other end is connected with described handle 8 by straight pin 7, handle 8 adopts the changeable handle with cam structure of gyrobearing, outer cover plate 4 is provided with and produces with handle 8 back-up block 5 extruding to compress outer cover plate 2.The outer rim of outer cover plate 4 and inner cover plate 2 intersection forms one and is placed in annular seal groove for annular seal groove 9, the O shape circle holding elastomeric element 3.Annular seal groove 9 cross section is trapezoidal, and this cross-sectional sizes can change with outer cover plate 4 and inner cover plate 2 relative movement.
Rotate the handle 8 be positioned on the straight pin 7 of connecting rod 6 one end, by changing the location status of the cam pressing structure of handle one end, the O shape circle 3 be in the seal groove between the inner cover plate 2 of hand hole cover and outer cover plate 4 is made to be in relaxed state, then, hand hole cover plate is inserted the hand hole ring 1 be arranged on negative pressure tank wall, turning handle 8, change the location status of the cam of handle 8 one end, by the interaction produced with the back-up block 5 be positioned on outer cover plate 4, connecting rod 6 is pulled to do rectilinear motion, thus make the inner cover plate 2 of hand hole cover and outer cover plate 4 produce relative displacement, and then make two inclined-planes of the trapezoidal seal groove at the crossing outer rim place being positioned at two cover plates produce relative displacement, and the O shape circle 3 being arranged in groove is outwards extruded, realize the radial compaction of O shape circle 3 and hand hole ring 1 inwall.
In sum, sealing hand hole device provided by the utility model, can make hand hole device good seal, ensures the safety of staff, can realize rapidly opened and closed, improve operating efficiency, and durable is without the need to frequent replacing, can meet the requirement of frequent operation.
Obviously, those skilled in the art can carry out various change and modification to the utility model and not depart from spirit and scope of the present utility model.Like this, if belong within the scope of the utility model claim and equivalent technology thereof to these amendments of the present utility model and modification, then the utility model is also intended to comprise these change and modification.
Claims (8)
1. one kind can the sealing hand hole device of quick locking, comprise hand hole ring (1), insert the outer cover plate (2) in hand hole ring (1) and inner cover plate (4), through the connecting rod (6) in outer cover plate (2) and inner cover plate (4) axle center, the compacting part (8) matched with connecting rod (6), it is characterized in that: described outer cover plate (2) and independent setting of inner cover plate (4) also can produce displacement along the axis of hand hole ring (1), elastic sealing element (3) is provided with at the outer fringe position of described outer cover plate (2) and inner cover plate (4) intersection.
2. as claimed in claim 1 can the sealing hand hole device of quick locking, it is characterized in that: the handle that described compacting part (8) is cam structure.
3. as claimed in claim 2 can the sealing hand hole device of quick locking, it is characterized in that: described outer cover plate (2) is provided with and produces extruding to compress the back-up block (5) of outer cover plate (2) with compacting part (8).
4. as claimed in claim 1 can the sealing hand hole device of quick locking, it is characterized in that: described elastic sealing element (3) is O shape circle.
5. as described in claim 1 or 4 can the sealing hand hole device of quick locking, it is characterized in that: described outer cover plate (2) and the outer rim of inner cover plate (4) intersection form one for holding the annular seal groove (9) of elastic sealing element (3).
6. as claimed in claim 5 can the sealing hand hole device of quick locking, it is characterized in that: described annular seal groove (9) cross section is trapezoidal, and this cross-sectional sizes can change with outer cover plate (2) and inner cover plate (4) relative movement.
7. as in Claims 1-4 as described in any one can the sealing hand hole device of quick locking, it is characterized in that: one end of described connecting rod (6) adopts bonding mode to be fixedly connected with between inner cover plate (4).
8. as in Claims 1-4 as described in any one can the sealing hand hole device of quick locking, it is characterized in that: described connecting rod (6) is connected with described compacting part (8) by straight pin (7) away from one end of inner cover plate (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420698911.1U CN204339802U (en) | 2014-11-19 | 2014-11-19 | A kind of can the sealing hand hole device of quick locking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420698911.1U CN204339802U (en) | 2014-11-19 | 2014-11-19 | A kind of can the sealing hand hole device of quick locking |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204339802U true CN204339802U (en) | 2015-05-20 |
Family
ID=53223100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420698911.1U Active CN204339802U (en) | 2014-11-19 | 2014-11-19 | A kind of can the sealing hand hole device of quick locking |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204339802U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106931162A (en) * | 2017-02-13 | 2017-07-07 | 上海大学 | A kind of sealing compactor suitable for crawl space |
-
2014
- 2014-11-19 CN CN201420698911.1U patent/CN204339802U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106931162A (en) * | 2017-02-13 | 2017-07-07 | 上海大学 | A kind of sealing compactor suitable for crawl space |
| CN106931162B (en) * | 2017-02-13 | 2019-04-02 | 上海大学 | A kind of sealing compactor suitable for crawl space |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |