CN108468699A - A kind of sealing screw component and its attachment screw - Google Patents
A kind of sealing screw component and its attachment screw Download PDFInfo
- Publication number
- CN108468699A CN108468699A CN201810438157.0A CN201810438157A CN108468699A CN 108468699 A CN108468699 A CN 108468699A CN 201810438157 A CN201810438157 A CN 201810438157A CN 108468699 A CN108468699 A CN 108468699A
- Authority
- CN
- China
- Prior art keywords
- section
- screw
- diameter
- sealing
- threaded connection
- 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.)
- Withdrawn
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 49
- 210000002421 cell wall Anatomy 0.000 claims description 4
- 230000006835 compression Effects 0.000 abstract 1
- 238000007906 compression Methods 0.000 abstract 1
- 230000003139 buffering effect Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 230000000712 assembly Effects 0.000 description 3
- 238000000429 assembly Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000005684 electric field Effects 0.000 description 3
- 238000007667 floating Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
- F16B35/04—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws with specially-shaped head or shaft in order to fix the bolt on or in an object
- F16B35/06—Specially-shaped heads
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/061—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with positioning means
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gasket Seals (AREA)
- Bolts, Nuts, And Washers (AREA)
Abstract
The present invention provides a kind of sealing screw component and its attachment screws, wherein sealing screw component includes attachment screw, attachment screw includes head of screw and threaded connection section, head of screw is the step type comprising major diameter section and path section, path section position between major diameter section and threaded connection section is equipped with sealing ring in path section.The present invention sealing screw component by the sealing ring in head of screw path section can head of screw major diameter section and connect panel compression when guarantee connecting screw hole at hermetic seal, not only realize and be fastenedly connected, but also ensure that the sealing performance of link position.
Description
Technical field
The present invention relates to connecting element more particularly to a kind of sealing screw components and its attachment screw.
Background technology
Currently, the high voltage electric equipment for filling insulating gas in power grid uses more and more, these high voltage electric equipments
In assembling process, need electric component being fixed in gas tank.In this way, for fixing the fixing screws of these electrical equipments not
Need only to have higher bearing capacity, it is also necessary to which the performance with hermetic seal will not be connected with gas in guard box from screw
Position gas leakage, but existing screw only serves the effect being fixedly connected mostly, does not have higher air-tightness.
Invention content
The purpose of the present invention is to provide a kind of sealing screw components that can ensure air-tightness, while the present invention also provides
The attachment screw that the sealing screw component is included.
The sealing screw component of the present invention includes attachment screw, and attachment screw includes head of screw and threaded connection section, spiral shell
Ailhead is the step type comprising major diameter section and path section, path section position, path section between major diameter section and threaded connection section
On sealing ring is installed.The sealing screw component of the present invention can be in the big of head of screw by the sealing ring in head of screw path section
Diameter section and the hermetic seal connecting when panel compresses at guarantee connecting screw hole, not only realize and are fastenedly connected, but also ensure that connection
The sealing performance of position.
Specifically, the path section is equipped with closure gasket groove, and sealing ring is mounted in annular groove.
In order to ensure more reliably to seal, the diameter of head of screw path section is more than the diameter of threaded connection section, so more
It is easily guaranteed that sealing ring has certain crimp, ensures sealing effect.
Cell wall between the close threaded connection section of closure gasket groove is gradually to increase from threaded connection section to head of screw diameter
Conical section.When gas is overflowed by screw fixed hole, circular conical surface plays the role of first layer buffering air pressure, passes through one layer of gas
Pressure buffering, acts on the pressure very little of O-ring seal, O-ring seal can ensure to seal.
The diameter of path section is equal with the bigger diameter end diameter of conical section, and equal to the central diameter of O-ring seal, prevents in this way
When combination sealing screw passes through mounting hole, O-ring seal is deviate from outward because of stress to screw path section.
In addition, design can also be advanced optimized on the basis of above each scheme, for example, head of screw major diameter section is cylinder
Shape and the marginal position at both ends have led fillet, and major diameter section is internally provided with locking bayonet, have led fillet and avoid screw assemblies and exist
Floating potential or point discharge are generated in electric high-voltage electric field；Or the component further includes mounted on path section, is located at sealing
Washer of the circle close to head of screw side.
The attachment screw of the present invention includes rivet nut, and rivet nut includes head of screw and threaded connection section, and head of screw is comprising big
The step type of diameter section and path section, path section position between major diameter section and threaded connection section, path section are equipped with sealing ring
Mounting groove.The attachment screw of the present invention when in use can be in the major diameter section of head of screw by the sealing ring in head of screw path section
Hermetic seal with connecting when panel compresses at guarantee connecting screw hole, not only realizes and is fastenedly connected, but also ensure that link position
Sealing performance.
In order to ensure more reliably to seal, the diameter of head of screw path section is more than the diameter of threaded connection section, so more
It is easily guaranteed that sealing ring has certain crimp, ensures sealing effect.
Cell wall between the close threaded connection section of closure gasket groove is gradually to increase from threaded connection section to head of screw diameter
Conical section.When gas is overflowed by screw fixed hole, circular conical surface plays the role of first layer buffering air pressure, passes through one layer of gas
Pressure buffering, acts on the pressure very little of O-ring seal, O-ring seal can ensure to seal.
The diameter of path section is equal with the bigger diameter end diameter of conical section, prevents from passing through mounting hole in combination sealing screw in this way
When, O-ring seal is deviate from outward because of stress to screw path section.
In addition, head of screw major diameter section, which is cylindric and both ends marginal position, has led fillet, major diameter section is internally provided with lock
Tight bayonet has led fillet and avoids screw assemblies that floating potential or point discharge are generated in electric high-voltage electric field.
Description of the drawings
Fig. 1 is the structural schematic diagram of the sealing screw component of the present invention；
Fig. 2 is the structural schematic diagram of attachment screw in Fig. 1；
Fig. 3 is the schematic diagram when sealing screw component of the present invention uses.
Specific implementation mode
Embodiments of the present invention are described further below in conjunction with the accompanying drawings.
The specific embodiment of the sealing screw component of the present invention, as shown in Figure 1 to Figure 2, including attachment screw, attachment screw
Including head of screw and threaded connection section 13, head of screw is the step type comprising major diameter section 10 and path section 11, path section 11
Position between major diameter section 10 and threaded connection section 13, wherein path section 11 are equipped with closure gasket groove 14, in closure gasket groove 14
Sealing ring 2 is installed.As shown in figure 3, in use, by sealing screw component be mounted on gas tank 9 panel on mounting hole in, it is close
Envelope screw assembly stretches into one end connection gas box equipment 92 of the inner cavity 90 of gas tank 9, and the major diameter section 10 of head of screw can will be consolidated
Determine part 91 to be pressed on the lateral surface of gas tank panel, it can be in the big of head of screw by the sealing ring 2 in head of screw path section 11
Ensure the hermetic seal at mounting hole when diameter section 10 is compressed with fixture 91.
The diameter of path section 11 is more than the diameter of threaded connection section 13, is easier to ensure that sealing ring has certain squeeze in this way
Compressive strain ensures sealing effect.Moreover, the cell wall 12 between the close threaded connection section 13 of closure gasket groove 14 is from threaded connection
Section 13 is to the gradual increased conical section of head of screw diameter.In this way when gas is overflowed by screw fixed hole, circular conical surface plays
The effect of one layer of buffering air pressure acts on the pressure very little of O-ring seal by one layer of pressure buffer, and O-ring seal can protect
Card sealing.Preferably, the diameter of path section 11 is equal with the bigger diameter end diameter of conical section, and is equal to the central diameter of O-ring seal, this
Sample is prevented when combination sealing screw passes through mounting hole, and O-ring seal is deviate from outward because of stress to screw path section.Certainly, exist
In other embodiment, the bigger diameter end diameter of conical section can be less than the diameter of path section or the diameter of path section is slightly less than
Or the central diameter slightly larger than O-ring seal.
In addition, in order to ensure that the reliability of screw connection, sealing screw component further include mounted on path section, positioned at close
Seal is close to the washer of head of screw side, which can be bonded washer, such as including plain cushion 4 and spring washer 3；Head of screw
Major diameter section 10 be cylindric and both ends marginal position led fillet, this avoid screw assemblies in electric high-voltage electric field
Floating potential or point discharge are generated, cylindric head of screw is internally provided with hexagonal locking bayonet, convenient for screwing for screw.
The present invention also provides the embodiment of attachment screw, the embodiment of concrete structure and above-mentioned sealing screw component
In attachment screw structure it is identical, details are not described herein again.
Claims (10)
1. a kind of sealing screw component, characterized in that including attachment screw, attachment screw includes head of screw and threaded connection
Section, head of screw are the step type comprising major diameter section and path section, and path section position between major diameter section and threaded connection section is small
Sealing ring is installed in diameter section.
2. sealing screw component according to claim 1, characterized in that the path section is equipped with closure gasket groove, sealing
Circle is mounted in annular groove.
3. sealing screw component according to claim 1, characterized in that the diameter of path section is more than the straight of threaded connection section
Diameter.
4. sealing screw component according to claim 3, characterized in that between the close threaded connection section of closure gasket groove
Cell wall is from threaded connection section to the gradual increased conical section of head of screw diameter.
5. sealing screw component according to claim 4, characterized in that the diameter of path section and the bigger diameter end of conical section are straight
Diameter is equal, and equal to the central diameter of O-ring seal.
6. according to the sealing screw component described in claims 1 or 2 or 3 or 4 or 5, characterized in that major diameter section is cylindric and two
The marginal position at end has led fillet, and major diameter section is internally provided with locking bayonet.
7. according to the sealing screw component described in claims 1 or 2 or 3 or 4 or 5, characterized in that the component further includes being mounted on
Path section, positioned at sealing ring close to the washer of head of screw side.
8. a kind of attachment screw, characterized in that including rivet nut, rivet nut includes head of screw and threaded connection section, and head of screw is packet
The step type of section containing major diameter and path section, path section position between major diameter section and threaded connection section, path section are equipped with close
Seal mounting groove.
9. attachment screw according to claim 8, characterized in that the diameter of path section is more than the diameter of threaded connection section.
10. attachment screw according to claim 9, characterized in that the slot between the close threaded connection section of closure gasket groove
Wall is from threaded connection section to the gradual increased conical section of head of screw diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810438157.0A CN108468699A (en) | 2018-05-09 | 2018-05-09 | A kind of sealing screw component and its attachment screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810438157.0A CN108468699A (en) | 2018-05-09 | 2018-05-09 | A kind of sealing screw component and its attachment screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108468699A true CN108468699A (en) | 2018-08-31 |
Family
ID=63260913
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810438157.0A Withdrawn CN108468699A (en) | 2018-05-09 | 2018-05-09 | A kind of sealing screw component and its attachment screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108468699A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112709744A (en) * | 2021-01-13 | 2021-04-27 | 北京航天试验技术研究所 | Seal structure of screw hole under low temperature, high pressure liquefied gas environment |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202418139U (en) * | 2012-02-15 | 2012-09-05 | 张立昊 | Screw assembly used between a fastening sheet material and steel |
| DE102013203570A1 (en) * | 2013-03-01 | 2014-09-04 | Mahle International Gmbh | Screw assembly, for filter device or radiator of internal combustion engine, has stationary pressure elements that are clamped by spring force against peripheral surface, and which act as captive securing with annular step |
| CN104132135A (en) * | 2014-07-09 | 2014-11-05 | 昆明云内动力股份有限公司 | Through hole sealing device |
| CN104976212A (en) * | 2014-04-04 | 2015-10-14 | 上海机电工程研究所 | Screw connecting device |
| CN204828215U (en) * | 2015-07-21 | 2015-12-02 | 大全集团有限公司 | Sealing screw and seal structure |
| CN204942217U (en) * | 2014-10-22 | 2016-01-06 | 哈尔滨北仓粮食仓储工程设备有限公司 | Steel silo Special seal structural bolts |
| WO2016039306A1 (en) * | 2014-09-08 | 2016-03-17 | 株式会社ＮｅｊｉＬａｗ | Member fastening structure for rectilinear motion system |
| CN105522413A (en) * | 2015-12-01 | 2016-04-27 | 中国科学院上海技术物理研究所 | Sealed adsorption-type adjustable supporting device for processing thin plane of core pillar component |
| CN205780076U (en) * | 2016-05-27 | 2016-12-07 | 上海蓝梭电子科技有限公司 | A kind of cone-shaped seal structure plugging together position for underwater connector |
| CN206513827U (en) * | 2017-01-23 | 2017-09-22 | 中国航发沈阳发动机研究所 | A kind of casing hole sealing structure |
| CN207049847U (en) * | 2017-08-11 | 2018-02-27 | 上海小糸车灯有限公司 | Bulb light regulating bolt with self sealss and its fit structure with lamp body |
| CN108397467A (en) * | 2018-05-07 | 2018-08-14 | 大盛微电科技股份有限公司 | Sealing fixed Combination screw for electric high-voltage environment |
-
2018
- 2018-05-09 CN CN201810438157.0A patent/CN108468699A/en not_active Withdrawn
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202418139U (en) * | 2012-02-15 | 2012-09-05 | 张立昊 | Screw assembly used between a fastening sheet material and steel |
| DE102013203570A1 (en) * | 2013-03-01 | 2014-09-04 | Mahle International Gmbh | Screw assembly, for filter device or radiator of internal combustion engine, has stationary pressure elements that are clamped by spring force against peripheral surface, and which act as captive securing with annular step |
| CN104976212A (en) * | 2014-04-04 | 2015-10-14 | 上海机电工程研究所 | Screw connecting device |
| CN104132135A (en) * | 2014-07-09 | 2014-11-05 | 昆明云内动力股份有限公司 | Through hole sealing device |
| WO2016039306A1 (en) * | 2014-09-08 | 2016-03-17 | 株式会社ＮｅｊｉＬａｗ | Member fastening structure for rectilinear motion system |
| CN204942217U (en) * | 2014-10-22 | 2016-01-06 | 哈尔滨北仓粮食仓储工程设备有限公司 | Steel silo Special seal structural bolts |
| CN204828215U (en) * | 2015-07-21 | 2015-12-02 | 大全集团有限公司 | Sealing screw and seal structure |
| CN105522413A (en) * | 2015-12-01 | 2016-04-27 | 中国科学院上海技术物理研究所 | Sealed adsorption-type adjustable supporting device for processing thin plane of core pillar component |
| CN205780076U (en) * | 2016-05-27 | 2016-12-07 | 上海蓝梭电子科技有限公司 | A kind of cone-shaped seal structure plugging together position for underwater connector |
| CN206513827U (en) * | 2017-01-23 | 2017-09-22 | 中国航发沈阳发动机研究所 | A kind of casing hole sealing structure |
| CN207049847U (en) * | 2017-08-11 | 2018-02-27 | 上海小糸车灯有限公司 | Bulb light regulating bolt with self sealss and its fit structure with lamp body |
| CN108397467A (en) * | 2018-05-07 | 2018-08-14 | 大盛微电科技股份有限公司 | Sealing fixed Combination screw for electric high-voltage environment |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112709744A (en) * | 2021-01-13 | 2021-04-27 | 北京航天试验技术研究所 | Seal structure of screw hole under low temperature, high pressure liquefied gas environment |
| CN112709744B (en) * | 2021-01-13 | 2024-06-11 | 北京航天试验技术研究所 | Sealing structure of threaded hole under low-temperature and high-pressure liquefied gas environment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180831 |