CN103939447B - A kind of double seal bolt - Google Patents
A kind of double seal bolt Download PDFInfo
- Publication number
- CN103939447B CN103939447B CN201410142614.3A CN201410142614A CN103939447B CN 103939447 B CN103939447 B CN 103939447B CN 201410142614 A CN201410142614 A CN 201410142614A CN 103939447 B CN103939447 B CN 103939447B
- Authority
- CN
- China
- Prior art keywords
- bolt
- pad
- groove
- housing parts
- seal ring
- 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 19
- 230000003116 impacting Effects 0.000 claims abstract description 3
- 230000000875 corresponding Effects 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 238000005755 formation reaction Methods 0.000 claims description 2
- 238000010276 construction Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 2
- 239000012530 fluid Substances 0.000 abstract 2
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 230000004048 modification Effects 0.000 description 2
- 238000006011 modification reaction Methods 0.000 description 2
- 239000000356 contaminant Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Abstract
The invention provides a kind of double seal bolt, comprise bolt, seal ring, pad and nut.The principle of this double seal bolt is: bolt has groove, is used for placing seal ring, sealing in being formed; Pad is placed at bolt two ends, and pad internal diameter tightly fits together with containing groove bolt, forms external sealed, can effectively prevent external fluid from entering bolt inside, and can effectively stop internal tank fluid to flow out under impacting force effect.Novel structure of the present invention, simple to operate, easy to manufacture, compact structure, the bolt being suitable for pressurized container connects use.In addition, the invention also discloses the using method of double seal bolt.
Description
Technical field
The present invention is specifically related to a kind of bolt arrangement that can be used for preventing pressurized container Leakage Gas of double seal.
Background technique
It is one of the most frequently used mechanical connection manner that bolt connects, and has occurred now different bolt type and different bolt fastening structures.In order to prevent introduced contaminants and internal flow from bolted connection position infiltration leakage, the mode that people have invented a series of exquisiteness seals bolt.Such as, pad effectively can prevent bolt and surface of test piece and the leakage with nut junction plane position; The sealing at screw thread place can be realized by sealer; At screw thread position, seal ring is installed, realizes the locking of screw thread position and sealing.
At present, for the structure of bolt seal and mode more, but main bolt seal mode and structure have following deficiency: sealing means is single, cannot realize double seal; Be only applicable to ordinary water, impurity sealing, in the occasion lower seal poor effect of the pressurized container containing pressed gas; Sealer and seal ring is used to cause bolt disassembly difficulty at screw position.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, provide double seal bolt arrangement and using method thereof.
The solution of the present invention is: double seal bolt comprises nut, pad, seal ring and bolt.Bolt has and organizes groove more, seal ring is installed in the groove of bolt, for the formation of interior sealing.The two ends of bolt are placed with pad, form external sealed by the impacting force of fastening nut.
Bolt comprises screw rod and screw section, and screw rod connects with before and after screw section, and screw section is positioned at the end of bolt, for attaching nut, many group grooves can be arranged on screw rod, be arranged on screw section, or a part is arranged on screw rod, another part is arranged on screw section, is used for installing seal ring.
The group number of groove and the quantity often organizing groove further groove can increase and decrease according to seal request.Pad internal diameter is less than bolt external diameter, tightly fits together with bolt.Pad inner radius has slope, facilitates pad to install.
The invention also discloses the using method of above-mentioned double seal bolt, the method is used for sealing load chamber, pressure chamber comprises the shell be made up of multiple housing parts, housing parts has through hole, for installing double seal bolt, by double seal bolton together, the step of the method comprises the plurality of housing parts:
First pad is inserted in the one end at bolt;
Seal ring is put into corresponding groove;
Adjust described multiple housing parts, the through hole of the corresponding housing parts that tighten together is aimed at mutually;
From the other end of bolt, bolt is inserted into the through hole of the housing parts mutually aimed at, makes the seal ring of many group grooves and correspondence be positioned at the two ends of pressure chamber, wherein seal ring and through-hole wall close contact, sealing in being formed;
Second pad is inserted in the other end of the bolt passed from the through hole of housing parts;
Install and fastening nut, make pad be pressed on housing parts, form external sealed.
Wherein can comprise multiple pressure chamber, at least there is between every two pressure chambers the seal ring of one group of groove and correspondence.
Double seal bolt of the present invention has following significant advantage:
1) the present invention contains double seal, and seal ring forms interior sealing, and pad forms external sealed;
2) bolt position place of the present invention has groove, is used for placing seal ring, and the quantity of groove can be expanded according to seal request;
3) pad internal diameter of the present invention is less than bolt external diameter, tightly fits together with bolt, and pad internal diameter has slope, facilitates pad to install;
4) compact structure of the present invention, highly versatile, and processing and assembling is easy, and being suitable for has the bolt compared with high sealing required pressure container to connect use.
Accompanying drawing explanation
Accompanying drawing illustrates embodiments of the invention, it should be noted that, accompanying drawing only for illustrating principle of the present invention, do not limit its scope, and accompanying drawing is not necessarily drawn in proportion.
Below in conjunction with accompanying drawing and example, the present invention is further described.
Fig. 1 is double seal bolt arrangement sectional view of the present invention:
In figure: 1 nut; 2 pads; 3 seal rings; 4 bolts; 5 screw sections; 6 screw rods; 7 grooves.
Embodiment
Below in conjunction with accompanying drawing, structural principle of the present invention and working principle are described in further details.
It should be noted that, the embodiment in the present invention is only in order to know-why is described, not limits the scope of the invention.Without departing from the spirit and scope of the present invention, by reading the present invention, those skilled in the art will recognize that various modification of the present invention and change, these modification and change are also within the protection domain of the application.
With reference to shown in Fig. 1, the invention provides a kind of double seal bolt for sealing load chamber.Pressure chamber comprises the shell be made up of multiple housing parts, and housing parts has through hole, and for installing double seal bolt, the plurality of housing parts by double seal bolton together, thus forms the pressure chamber of double seal.Double seal bolt comprises bolt 4, seal ring 3, pad 2 and nut 1.Bolt 4 comprises screw rod 6 and screw section 5, and screw rod 6 connects with before and after screw section 5.Screw section 5 is positioned at the end of bolt 4, for attaching nut.Screw rod 6 has 2 groups of grooves, often organize groove and comprise 3 grooves 7, be placed with seal ring 3 in groove 7, seal ring 3 forms interior sealing with the through-hole wall fluid-tight engagement of bolt 4 and housing parts.Pressure chamber is sealed with between the seal ring of 2 groups of grooves and correspondence.Place pad 2 at the two ends of bolt 4, pad 2 internal diameter is less than containing groove bolt 4 external diameter, and pad 2 inner radius has slope, facilitates pad 2 to install.The external diameter of pad 2 internal diameter and bolt 4 tightly fits together, fastening nut 1, pad 2 is made to be pressed on housing parts, form external sealed, both can effectively prevent exterior materials from entering bolt inside, also bolt can be avoided to connect internal flow leak, be suitable for having comparatively high sealing required pressure container to use.
In addition, only disclose 2 groups of grooves, often group groove in Fig. 1 and comprise the technological scheme of 3 grooves, as required, can comprise and organize groove (such as three groups more, four groups etc.), often organize groove and can comprise one or more groove, and more than one seal ring can be placed in each groove.In addition, the technical program can arrange and organize groove more on screw rod, all seals a pressure chamber between every two grooves, thus can with a multiple pressure chamber of bolt seal.According to different sealing needs, the groove of pressure chamber both sides and the quantity of seal ring can be different, and such as pressure chamber side has two groups of groove opposite sides to have one group of groove.And groove might not be arranged on screw rod 6, also can be arranged on screw section 5, or also can be arranged on screw rod 6 by a part of groove, another part groove be arranged on screw section 5.
In addition, the invention still further relates to the using method of above-mentioned double seal bolt, the method is used for sealing load chamber, pressure chamber comprises the shell be made up of multiple housing parts, housing parts has through hole, for installing double seal bolt, by double seal bolton together, the step of the method comprises the plurality of housing parts:
First pad 2 is inserted in one end of bolt 4;
Seal ring 3 is put into corresponding groove 7;
Adjust described multiple housing parts, the through hole of the corresponding housing parts that tighten together is aimed at mutually;
From the other end of bolt 4, bolt 4 is inserted the through hole of the housing parts mutually aimed at, make the seal ring 3 of groove 7 and correspondence be positioned at the two ends of pressure chamber, wherein seal ring 3 and through-hole wall close contact, sealing in being formed;
Second pad 2 is inserted in the other end of the bolt 4 passed from the through hole of housing parts;
Install and fastening nut, make pad 2 be pressed on housing parts, form external sealed.
Claims (7)
1. a double seal bolt, it is characterized in that: described double seal bolt comprises nut (1), pad (2), seal ring (3) and bolt (4), bolt (4) has and organizes groove (7) more, seal ring (3) is installed in the groove (7) of bolt (4), make the seal ring (3) organizing groove (7) and correspondence be positioned at the two ends of pressure chamber, for the formation of interior sealing more; The two ends of bolt (4) are placed with pad (2), form external sealed by the impacting force of fastening nut (1).
2. double seal bolt according to claim 1, it is characterized in that: described bolt (4) comprises screw rod (6) and screw section (5), screw rod (6) connects with before and after screw section (5), screw section (5) is positioned at the end of bolt (4), for attaching nut, described many group grooves are arranged on screw rod (6), or be arranged on screw section (5), or a part is arranged on screw rod (6), another part is arranged on screw section (5), is used for installing seal ring (3).
3. double seal bolt according to claim 1 or 2, is characterized in that: the group number of groove and the quantity often organizing groove further groove can both increase and decrease according to seal request.
4. double seal bolt according to claim 1 or 2, is characterized in that: described pad (2) internal diameter is less than bolt (4) external diameter, tightly fits together with bolt (4).
5. double seal bolt according to claim 1 or 2, is characterized in that: pad (2) inner radius has slope, facilitates pad (2) to install.
6. the using method of the double seal bolt described in an any one of claim 1-5, described method is used for sealing load chamber, pressure chamber comprises the shell be made up of multiple housing parts, housing parts has through hole, for construction bolt, by double seal bolton together, the step of the method comprises the plurality of housing parts:
First pad (2) is inserted in the one end in bolt (4);
Seal ring (3) is put into corresponding groove (7);
Adjust described multiple housing parts, the through hole of the corresponding housing parts that tighten together is aimed at mutually;
From the other end of bolt (4), bolt (4) is inserted into the through hole of the housing parts mutually aimed at, make the seal ring (3) organizing groove (7) and correspondence be positioned at the two ends of pressure chamber more, wherein seal ring (3) and through-hole wall close contact, sealing in being formed;
Second pad (2) is inserted in the other end of the bolt (4) passed from the through hole of housing parts;
Install and fastening nut (1), make pad (2) be pressed on housing parts, form external sealed.
7. method according to claim 6, is characterized in that: comprise multiple pressure chamber, at least has the seal ring (3) of one group of groove (7) and correspondence between every two pressure chambers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410142614.3A CN103939447B (en) | 2014-04-10 | 2014-04-10 | A kind of double seal bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410142614.3A CN103939447B (en) | 2014-04-10 | 2014-04-10 | A kind of double seal bolt |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103939447A CN103939447A (en) | 2014-07-23 |
| CN103939447B true CN103939447B (en) | 2016-04-06 |
Family
ID=51187271
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410142614.3A Expired - Fee Related CN103939447B (en) | 2014-04-10 | 2014-04-10 | A kind of double seal bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103939447B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105466643A (en) * | 2015-11-20 | 2016-04-06 | 沈阳黎明航空发动机(集团)有限责任公司 | Sealing method of aviation casting machine box cavity pressure test |
| CN109622542B (en) * | 2018-12-06 | 2021-11-12 | 中国航发贵州黎阳航空动力有限公司 | Turbofan engine supporting case bearing bush machining protection device and method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH627242A5 (en) * | 1979-02-14 | 1981-12-31 | Jean Paolini | Screw for sealed closure |
| CN2651498Y (en) * | 2003-02-21 | 2004-10-27 | 李习永 | Anti-loosen sealing bolt |
| CN201170244Y (en) * | 2008-04-03 | 2008-12-24 | 张连墩 | Anti-loose seal screw |
| CN201228769Y (en) * | 2008-07-24 | 2009-04-29 | 重庆长安汽车股份有限公司 | Sealing gasket |
| CN203770349U (en) * | 2014-04-10 | 2014-08-13 | 西安交通大学 | Dual-seal bolt |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4801720B2 (en) * | 2008-12-09 | 2011-10-26 | トヨタ紡織株式会社 | Composite member fixing structure |
-
2014
- 2014-04-10 CN CN201410142614.3A patent/CN103939447B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH627242A5 (en) * | 1979-02-14 | 1981-12-31 | Jean Paolini | Screw for sealed closure |
| CN2651498Y (en) * | 2003-02-21 | 2004-10-27 | 李习永 | Anti-loosen sealing bolt |
| CN201170244Y (en) * | 2008-04-03 | 2008-12-24 | 张连墩 | Anti-loose seal screw |
| CN201228769Y (en) * | 2008-07-24 | 2009-04-29 | 重庆长安汽车股份有限公司 | Sealing gasket |
| CN203770349U (en) * | 2014-04-10 | 2014-08-13 | 西安交通大学 | Dual-seal bolt |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103939447A (en) | 2014-07-23 |
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| PB01 | Publication | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160406 Termination date: 20190410 |
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| CF01 | Termination of patent right due to non-payment of annual fee |