CN204477291U - Pressure container manhole lid pressure self-sealing device - Google Patents
Pressure container manhole lid pressure self-sealing device Download PDFInfo
- Publication number
- CN204477291U CN204477291U CN201520157791.9U CN201520157791U CN204477291U CN 204477291 U CN204477291 U CN 204477291U CN 201520157791 U CN201520157791 U CN 201520157791U CN 204477291 U CN204477291 U CN 204477291U
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- CN
- China
- Prior art keywords
- manhole
- arm
- pressure
- manhole cover
- compact heap
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- Pressure Vessels And Lids Thereof (AREA)
Abstract
The utility model discloses a kind of Pressure container manhole lid pressure self-sealing device, comprise manhole cover, arc for upwards, the middle part of manhole cover is provided with arm, perimembranous is provided with draw-in groove, pad is provided with in draw-in groove, pad is provided with manhole pipe nipple, the excircle of manhole pipe nipple is provided with dunnage, pivoted lever is provided with between two dunnages, pivoted lever is provided with pivoted arm, this end of pivoted arm is provided with contiguous block, contiguous block is provided with via hole in the position relative to manhole cover center, arm passes from the via hole of contiguous block, the top of arm arranges handwheel block, compact heap and the pressure strip be fixedly connected with compact heap, compact heap coordinates with arm activity, the direction that can guide at arm is up and down, and drive pressure strip up and down, the two ends of pressure strip are pressed on the upper-end surface of manhole pipe nipple, handwheel block is arranged on the top of compact heap, be threaded with arm, described handwheel block is provided with handle.
Description
Technical field
The utility model relates to pressure vessel technology field, particularly relates to a kind of Pressure container manhole lid pressure self-sealing device.
Background technique
Pressurized container refers to filling gas or liquid, the Sealing Arrangement of carrying certain pressure.Due to certain pressure will be ensured in pressurized container, therefore, the sealing of manhole cover is extremely important.
At present, the manhole cover great majority of pressurized container adopt pusher-type sealing (namely forcing extruding rubber seal to realize sealing purpose by external force), or the structure such as traditional groove frame selfsealings, construct primarily of part compositions such as manhole collar, manhole cover, seal ring and fastening structures.
The sealing of said structure manhole cover all adopts elastic soft sealing, namely the elastic force produced by the certain pre-deformation of rubber seal acts on sealing surfaces, form certain contact (contact stress), technical term is seal pressure, namely the pressure between sealing surfaces, it is directly proportional to elastic acting force, but its active force in the elastic range of rubber, otherwise must may produce permanent set or permanent damage.
The sealing mechanism suppressing sealed type manhole cover forces to extrude rubber seal by External Force Acting fastening structure, produces by the deformation of rubber seal the sealing that seal pressure realizes manhole cover; The low pressure seal of this structure is good, but when disadvantage is operation, labor intensity is large, high pressure sealing ability, easily leaks and operator fracture at the spanner that happens occasionally of fastener cycle energetically and the born casualty accident of personal height occurs.
The sealing mechanism of traditional groove frame self-sealing manhole cover on seal ring, produces certain deformation by the gas pressure in discharge process tank, thus fit tightly realization sealing, there is the pressure advantage that more high sealing ability is better, and only need little pretightening force just can realize the sealing effect of low pressure, the high-pressure tightness of this structure is good, and it is low to have manipulation strength, the advantage such as simple and convenient, but its disadvantage is described groove frame all adopts " ［ " shape, its groove frame rubber seal ring cross-section limit is longer, the residual powder be subject between sealing surfaces is interfered, and easily cause leakage phenomenon in a low voltage state, require higher to the sealing surfaces turbidity test of manhole, simultaneously, because " ［ " shape groove frame rubber seal is fixedly realized by more uniform bolt presses ring type pressure strip in manhole cover, the size of fastening force also easily affects sealing effect, easily cause top seal when fastening force is less than normal to leak, easily make rubber deformation again when fastening force is excessive and affect lower seal effect, higher to the required precision of assembling, and it is large that the means of fixation of this sealing configuration creates this manhole installation volume, especially mounting structure height is higher, cause vehicle passing capacity poor, and product cost remains high, so far also wide popularization and application cannot be obtained.
Model utility content
The purpose of this utility model is the defect existed to overcome above-mentioned prior art, provide that a kind of sealing is reliable, simple operation, low cost, long-life Pressure container manhole lid pressure self-sealing device.
For solving the problems of the technologies described above, the technological scheme that the utility model adopts is:
A kind of Pressure container manhole lid pressure self-sealing device, comprise tank body, be connected to the manhole collar on tank body, match with manhole cover in the top of manhole collar, described manhole cover is upwards arc, the middle part of described manhole cover is provided with arm, the perimembranous of described manhole cover is provided with draw-in groove, pad is provided with in described draw-in groove, described pad is provided with manhole pipe nipple, the excircle of described manhole pipe nipple is provided with dunnage, pivoted lever is provided with between the dunnage described in two, described pivoted lever is provided with pivoted arm, the other end of described pivoted arm stretches to the middle part of manhole cover, this end of described pivoted arm is provided with contiguous block, described contiguous block is provided with via hole in the position relative to manhole cover center, described arm passes from the via hole of contiguous block, the top of described arm arranges handwheel block, compact heap and the pressure strip be fixedly connected with compact heap, described compact heap coordinates with arm activity, the direction that can guide at arm is up and down, and drive pressure strip up and down, the two ends of described pressure strip are pressed on the upper-end surface of manhole pipe nipple, described handwheel block is arranged on the top of compact heap, be threaded with arm, described handwheel block is provided with handle.
Pressure container manhole lid pressure self-sealing device of the present utility model, pivoted arm passes through pivoted lever, dunnage is hinged on manhole pipe nipple, rotate pivoted arm, the contiguous block that the non-articulated end of pivoted arm is connected is positioned at above manhole cover, arm passes from the via hole of contiguous block, pressure strip is installed, handwheel block, rotate handwheel block, handwheel block acts on compact heap, pressure strip is thereupon descending, offset with the end face of manhole pipe nipple, pressure strip stops descending, handwheel block continues descending, be pressed on manhole cover, manhole cover is out of shape downwardly towards extension, the circumference of manhole cover and the inner chamber of manhole collar compress, complete the sealing of manhole cover and manhole collar's inner chamber, upwards turn handwheel block, manhole cover deformation-recovery, the circumference of manhole cover and the inner chamber of manhole collar unclamp, can release, now can take down manhole cover from pressurized container.
Further, the cross section of described pressure strip is triangle, and the angle of described pressure strip and substantially horizontal is 10 degree.
Further, described handle is two, and two described handles angle is in the horizontal direction 180 degree, and angle is in the vertical direction 150 degree.
Further, described contiguous block is fixedly connected with by nut with pivoted arm, and described nut is acorn nut.
From the above-mentioned description to the utility model structure, compared to the prior art, the utility model tool has the following advantages:
Pressure container manhole lid pressure self-sealing device of the present utility model sealing is reliable, simple operation, low cost, the long lifetime.
Accompanying drawing explanation
The accompanying drawing forming a application's part is used to provide further understanding of the present utility model, and schematic description and description of the present utility model, for explaining the utility model, is not formed improper restriction of the present utility model.
Fig. 1 is main TV structure schematic diagram of the present utility model.
Fig. 2 is plan structure schematic diagram of the present utility model.
Fig. 3 is left TV structure schematic diagram of the present utility model.
Fig. 4 is I portion structure for amplifying schematic diagram in Fig. 3.
In figure, each label represents successively: 1-manhole cover; 2-pad; 3-manhole pipe nipple; 4-nut; 5-contiguous block; 6-handle; 7-handwheel block; 8-pivoted arm; 9-arm; 10-compact heap; 11-pressure strip; 12-dunnage; 13-pivoted lever.
Embodiment
In order to make the purpose of this utility model, technological scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
Embodiment 1
As Fig. 1, 2, shown in 3 and 4, Pressure container manhole lid pressure self-sealing device of the present utility model, Pressure container manhole lid pressure self-sealing device, comprise tank body, be connected to the manhole collar on tank body, match with manhole cover 1 in the top of manhole collar, described manhole cover 1 is upwards arc, the middle part of described manhole cover 1 is provided with arm 9, the perimembranous of described manhole cover 1 is provided with draw-in groove, pad 2 is provided with in described draw-in groove, described pad 2 is provided with manhole pipe nipple 3, the excircle of described manhole pipe nipple 3 is provided with dunnage 12, pivoted lever 13 is provided with between dunnage 12 described in two, described pivoted lever 13 is provided with pivoted arm 8, the other end of described pivoted arm 8 stretches to the middle part of manhole cover 1, this end of described pivoted arm 8 is provided with contiguous block 5, described contiguous block 5 is provided with via hole in the position relative to manhole cover 1 center, described arm 9 passes from the via hole of contiguous block 5, the top of described arm 9 arranges handwheel block 7, compact heap 10 and the pressure strip 11 be fixedly connected with compact heap 10, described compact heap 10 coordinates with arm 9 activity, the direction that can guide at arm 9 is up and down, and drive pressure strip 11 up and down, the two ends of described pressure strip 11 are pressed on the upper-end surface of manhole pipe nipple 3, described handwheel block 7 is arranged on the top of compact heap 10, be threaded with arm 9, described handwheel block 7 is provided with handle 6.
Pressure container manhole lid pressure self-sealing device of the present utility model, pivoted arm 8 is by pivoted lever 13, dunnage 12 is hinged on manhole pipe nipple 3, rotate pivoted arm 8, the contiguous block 5 that the non-articulated end of pivoted arm 8 is connected is positioned at above manhole cover 1, arm 9 passes from the via hole of contiguous block 5, pressure strip 11 is installed, handwheel block 7, rotate handwheel block 7, handwheel block 7 acts on compact heap 10, pressure strip 11 is thereupon descending, offset with the end face of manhole pipe nipple 3, pressure strip 11 stops descending, handwheel block 7 continues descending, be pressed on manhole cover 1, manhole cover 1 is out of shape downwardly towards extension, the circumference of manhole cover 1 and the inner chamber of manhole collar compress, complete the sealing of manhole cover and manhole collar's inner chamber, upwards turn handwheel block 7, manhole cover 1 deformation-recovery, the circumference of manhole cover 1 and the inner chamber of manhole collar unclamp, can release, now can take down manhole cover 1 from pressurized container.
The cross section of described pressure strip 11 is triangle, and described pressure strip 11 is 10 degree with the angle of substantially horizontal.
Described handle 6 is two, and two described handles 6 angle is in the horizontal direction 180 degree, and angle is in the vertical direction 150 degree.
Described contiguous block 5 is fixedly connected with by nut 4 with pivoted arm 9, and described nut 4 is acorn nut.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection domain of the present utility model.
Claims (4)
1. a Pressure container manhole lid pressure self-sealing device, it is characterized in that: comprise tank body, be connected to the manhole collar on tank body, match with manhole cover in the top of manhole collar, described manhole cover is upwards arc, the middle part of described manhole cover is provided with arm, the perimembranous of described manhole cover is provided with draw-in groove, pad is provided with in described draw-in groove, described pad is provided with manhole pipe nipple, the excircle of described manhole pipe nipple is provided with dunnage, pivoted lever is provided with between the dunnage described in two, described pivoted lever is provided with pivoted arm, the other end of described pivoted arm stretches to the middle part of manhole cover, this end of described pivoted arm is provided with contiguous block, described contiguous block is provided with via hole in the position relative to manhole cover center, described arm passes from the via hole of contiguous block, the top of described arm arranges handwheel block, compact heap and the pressure strip be fixedly connected with compact heap, described compact heap coordinates with arm activity, the direction that can guide at arm is up and down, and drive pressure strip up and down, the two ends of described pressure strip are pressed on the upper-end surface of manhole pipe nipple, described handwheel block is arranged on the top of compact heap, be threaded with arm, described handwheel block is provided with handle.
2. Pressure container manhole lid pressure self-sealing device according to claim 1, it is characterized in that: the cross section of described pressure strip is triangle, the angle of described pressure strip and substantially horizontal is 10 degree.
3. Pressure container manhole lid pressure self-sealing device according to claim 1 and 2, is characterized in that: described handle is two, and two described handles angle is in the horizontal direction 180 degree, and angle is in the vertical direction 150 degree.
4. Pressure container manhole lid pressure self-sealing device according to claim 3, it is characterized in that: described contiguous block is fixedly connected with by nut with pivoted arm, described nut is acorn nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520157791.9U CN204477291U (en) | 2015-03-20 | 2015-03-20 | Pressure container manhole lid pressure self-sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520157791.9U CN204477291U (en) | 2015-03-20 | 2015-03-20 | Pressure container manhole lid pressure self-sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204477291U true CN204477291U (en) | 2015-07-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520157791.9U Expired - Fee Related CN204477291U (en) | 2015-03-20 | 2015-03-20 | Pressure container manhole lid pressure self-sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204477291U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108644381A (en) * | 2018-07-20 | 2018-10-12 | 盐城市大明化工机械有限公司 | A kind of pressure vessel sealing device and encapsulating method |
-
2015
- 2015-03-20 CN CN201520157791.9U patent/CN204477291U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108644381A (en) * | 2018-07-20 | 2018-10-12 | 盐城市大明化工机械有限公司 | A kind of pressure vessel sealing device and encapsulating method |
| CN108644381B (en) * | 2018-07-20 | 2023-10-13 | 江苏大明生物工程装备有限公司 | Sealing device and sealing method for pressure container |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150715 Termination date: 20160320 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |