CN205478805U - Sealed screw of manometer - Google Patents
Sealed screw of manometer Download PDFInfo
- Publication number
- CN205478805U CN205478805U CN201620173943.9U CN201620173943U CN205478805U CN 205478805 U CN205478805 U CN 205478805U CN 201620173943 U CN201620173943 U CN 201620173943U CN 205478805 U CN205478805 U CN 205478805U
- Authority
- CN
- China
- Prior art keywords
- annular groove
- sealing ring
- screw
- utility
- model
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000007789 sealing Methods 0.000 claims abstract description 69
- 230000000694 effects Effects 0.000 abstract description 6
- 238000000034 method Methods 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 230000008961 swelling Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- Gasket Seals (AREA)
Abstract
The utility model relates to a sealed screw of manometer, including screw and sealing washer, be provided with the annular groove that matches with the sealing washer shape on the basal surface of the nut of screw, in the annular groove was located to the sealing washer card, the thickness of sealing washer was greater than the degree of depth of annular groove, and the width of sealing washer equals the groove width of annular groove. The utility model discloses can put forward the watchcase of high pressure table and the sealed effect of articulate department to reach the requirement of manometer to sealing performance.
Description
Technical field
This utility model relates to screw fastener, a kind of manometric sealed screw, it is adaptable to manometric watchcase with connect
The fixing seal of head junction.
Background technology
Pressure gauge is higher to the requirement of sealing property, and therefore its watchcase can be fixed close with supporting screw with joint
Envelope.
It is usually used in the screw of the various manometric watchcase of fixing seal and joint, it is possible to be referred to as bolt, the end table of its nut
Face is smooth, then a sealing ring of arranging in pairs or groups uses, and tightening screw when, sealing ring is under pressure and can expand outwardly,
The biggest it is also possible to can damage, therefore, fixing and dust-proof effect can only be played, its sealing effectiveness is poor, and sealing ring is also
Can often damage, need with changing, increase cost.
Utility model content
The technical problems to be solved in the utility model is to overcome existing defect, it is provided that a kind of manometric sealed screw, it is possible to carry
The watchcase of high-pressure manometer and the sealing effectiveness of joint, thus reach the Pressure gauge requirement to sealing property.
In order to solve above-mentioned technical problem, this utility model provides following technical scheme:
A kind of manometric sealed screw of this utility model, including screw and sealing ring, the basal surface of the nut of screw is provided with
With the annular groove of sealing ring form fit, sealing ring is arranged in annular groove, and the thickness of sealing ring is deep more than annular groove
Degree, the width of sealing ring is equal to the groove width of annular groove.
Further, circumferentially arranged on the basal surface of the nut of screw have annular groove.
Further, sealing ring is rubber seal.
The beneficial effects of the utility model: the thickness of sealing ring is more than the degree of depth of annular groove, when sealing ring is arranged in annular groove
Time interior, some exceeds annular groove；Sealing ring shape is mated with annular groove, and the width of sealing ring is equal to annular groove
Groove width so that when sealing ring is arranged in annular groove, in naturalness, and sealing ring just fills up whole annular groove, when
When watchcase slowly tightens screw with joint, sealing ring is in compressive state, and the deflection after sealing ring pressurized is to extending out
Open and press annular groove surrounding so that contact more tight between sealing ring with annular groove, thus reach better seal effect
Really, once the width of sealing ring is less than the groove width of annular groove, then will leave space between sealing ring and annular groove, close
Deflection after seal pressurized is uncontrolled, it is not necessary to can be filled up in the space left, therefore influence whether sealing effectiveness；Close
Seal is rubber seal, therefore high resilience, and has suitable mechanical strength, and stable performance is difficult to swelling in media as well,
Thermal pinch is little, easy machine-shaping, and can keep the size of precision, does not corrode contact surface, not pollution medium.
Accompanying drawing explanation
Fig. 1 is sectional view of the present utility model；
Fig. 2 is that this utility model assembles schematic diagram.
Detailed description of the invention
Embodiment cited by this utility model, is only intended to help and understands this utility model, should not be construed as this utility model
The restriction of protection domain, for those skilled in the art, on the premise of without departing from this utility model thought,
Can also make improvements and modifications this utility model, these improve and modify the model also falling into the protection of this utility model claim
In enclosing.
As it is shown in figure 1, a kind of manometric sealed screw, including screw 1 and sealing ring 2, the end table of the nut 11 of screw 1
Circumferentially arranged on face have and the annular groove 111 of sealing ring 2 form fit, and sealing ring 2 is arranged in annular groove 111, close
The thickness of seal 2 is more than the degree of depth of annular groove 111, and the width of sealing ring 2 is equal to the groove width of annular groove 111.Sealing ring 2
Thickness more than the degree of depth of annular groove 111, when sealing ring 2 is arranged in annular groove 111, some exceeds annular
Groove 111；Sealing ring 2 shape is mated with annular groove 111, and the width of sealing ring 2, equal to the groove width of annular groove 111, makes
Sealing ring 2 when being arranged in annular groove 111, in naturalness, and sealing ring 2 just fills up whole annular groove 111,
When this sealed screw is installed and used, sealing ring 2 is in compressive state, and the deflection after sealing ring 2 pressurized expands outwardly extruding
Annular groove 111 surrounding so that contact more tight between sealing ring 2 with annular groove 111, thus reach the closeest
Envelope effect, once the width of sealing ring 2 is less than the groove width of annular groove 111, then between sealing ring 2 and annular groove 111
Will leave space, the deflection after sealing ring 2 pressurized is uncontrolled, it is not necessary to can be filled up in the space left, therefore can
Have influence on sealing effectiveness.Sealing ring 2 is rubber seal, therefore high resilience, and has suitable mechanical strength and (include resisting
Zhang Qiangdu, percentage elongation and tearing toughness etc.), stable performance, it is difficult to swelling in media as well, thermal pinch (joule heating effect)
Little, easy machine-shaping, and the size of precision can be kept, do not corrode contact surface, not pollution medium.
As in figure 2 it is shown, when this sealed screw is anchored on watchcase 3 with joint 4 junction, be by screw 1 (not shown)
Nut 11 baseplane position, the process of the turn of the screw 1 i.e. the process of compresses seal 2, due to sealing ring 2 pressurized,
Make closed seamless between baseplane and the junction of watchcase 3 and joint 4 of the nut 11 of this sealed screw, thus have good
Sealing effectiveness.
In sum: arrange and sealing ring 2 form fit in the baseplane of the nut 11 of screw 1 owing to this utility model uses
Annular groove 111, and card sets sealing ring 2 in annular groove 111, the thickness of sealing ring 2 is more than the degree of depth of annular groove 111,
The width of sealing ring 2, equal to the groove width of annular groove 111, just fills up whole annular groove 111, makes screw 1 not change chi
In the case of very little, not only there is fixing and dustproof effect, be also equipped with the sealing property that sealing ring 2 is had simultaneously, worked as screw
In 1 screws in watchcase 3 and joint 4 junction and when oppressing sealing ring 2, due to sealing ring 2 pressurized so that this sealed screw and
Closed seamless between the junction of watchcase 3 and joint 4, thus there is good sealing effectiveness.Owing to this utility model uses
The baseplane of the nut 11 of screw 1 arranges the annular groove 111 with sealing ring 2 form fit, and blocks in annular groove 111
If sealing ring 2, would not infinitely open when tightening screw 1 and cause to damage, extend the service life of sealing ring 2, fall
Low cost.
Claims (3)
1. a manometric sealed screw, including screw (1) and sealing ring (2), it is characterised in that: described screw (1)
Nut (11) basal surface on be provided with and the annular groove (111) of sealing ring (2) form fit, sealing ring (2) blocks
Being located in annular groove (111), the thickness of sealing ring (2) is more than the degree of depth of annular groove (111), sealing ring (2)
Width is equal to the groove width of annular groove (111).
Manometric sealed screw the most according to claim 1, it is characterised in that: the nut (11) of described screw (1)
Basal surface on circumferentially arranged have annular groove (111).
Manometric sealed screw the most according to claim 1, it is characterised in that: described sealing ring (2) is that rubber is close
Seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620173943.9U CN205478805U (en) | 2016-03-07 | 2016-03-07 | Sealed screw of manometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620173943.9U CN205478805U (en) | 2016-03-07 | 2016-03-07 | Sealed screw of manometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205478805U true CN205478805U (en) | 2016-08-17 |
Family
ID=56659717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620173943.9U Expired - Fee Related CN205478805U (en) | 2016-03-07 | 2016-03-07 | Sealed screw of manometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205478805U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106917801A (en) * | 2017-03-24 | 2017-07-04 | 长葛市航天密封科技有限公司 | A kind of sealing screw |
| CN108868818A (en) * | 2018-08-03 | 2018-11-23 | 中国电建集团铁路建设有限公司 | A kind of shield duct piece hole for hoist sealing cover |
-
2016
- 2016-03-07 CN CN201620173943.9U patent/CN205478805U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106917801A (en) * | 2017-03-24 | 2017-07-04 | 长葛市航天密封科技有限公司 | A kind of sealing screw |
| CN108868818A (en) * | 2018-08-03 | 2018-11-23 | 中国电建集团铁路建设有限公司 | A kind of shield duct piece hole for hoist sealing cover |
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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: 20160817 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |