CN204267925U - A kind of airtight leak detection joint - Google Patents
A kind of airtight leak detection joint Download PDFInfo
- Publication number
- CN204267925U CN204267925U CN201420715581.2U CN201420715581U CN204267925U CN 204267925 U CN204267925 U CN 204267925U CN 201420715581 U CN201420715581 U CN 201420715581U CN 204267925 U CN204267925 U CN 204267925U
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- CN
- China
- Prior art keywords
- leak detection
- fixed block
- airtight leak
- joint
- closing clamp
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Abstract
The utility model belongs to mechanical field, relates to a kind of device preparing corrugated stainless steel tubing, particularly the airtight leak detection joint of one.Complicated in order to solve existing leak detection joint structure, the deficiency that volume is large, weight is large, the utility model provides a kind of efficient airtight leak detection joint.Described joint comprises SEALING FITTING, opening-closing clamp, rubber seal; Described opening-closing clamp is used for fixing bellows, and described SEALING FITTING and rubber seal are used for the end of seal bellows.Coarse thread is adopted to be connected between opening-closing clamp with SEALING FITTING.This airtight leak detection has with joint and connects fast, and sealing is reliable, the advantage of compact.
Description
Technical field
The utility model belongs to mechanical field, relates to a kind of device preparing corrugated stainless steel tubing, particularly the airtight leak detection joint of one.
Background technique
Existing stainless steel metal bellows welded tube processes, forming process belongs to cold working, welds unavoidable defectiveness, also likely causes damage to body during shaping, so 100% airtight leak detection must be carried out after forming, prevent the product introduction next procedure of leakage.
Existing airtight leak detection joint principle mostly as shown in Figure 1, be made up of parts such as clamping and fixing device 2, baffle plate 3, sealing materials 4, during leak detection, corrugated stainless steel tubing 1 is placed on clamping and fixing device 2, pressure F is applied in baffle plate 3 end, then source of the gas 5 is utilized to pass into the test medium such as pressurized air, nitrogen, put into water observation and have bubble-free, thus judge whether corrugated stainless steel tubing has leakage.
Usually we are referred to as leak detection joint parts such as clamping and fixing device 2, baffle plate 3, sealing materials 4, in joint structure in the past, sealing material 4 and the occlusion of bellows 1 end form sealing, bellows material is very thin, end is very sharp, each use all can damage sealing material, sealing material is short for service time, needs often to change; The method applying pressure F to baffle plate 3 is generally bolton or uses the methods such as cylinder, and complex structure, volume is large, weight is large.
Summary of the invention
Complicated in order to solve existing leak detection joint structure, the deficiency that volume is large, weight is large, the invention provides a kind of efficient airtight leak detection joint.This airtight leak detection has with joint and connects fast, and sealing is reliable, the advantage of compact.
In order to solve the problems of the technologies described above, the present invention adopts following technical proposals:
The invention provides a kind of airtight leak detection joint for bellows, described joint comprises SEALING FITTING, opening-closing clamp, rubber seal; Described opening-closing clamp is used for fixing bellows, and described SEALING FITTING and rubber seal are used for the end of seal bellows.
Coarse thread is adopted to be connected between opening-closing clamp with SEALING FITTING.
Rubber seal is ring, or is called O shape.
During leak detection, bellows is fixed by opening-closing clamp, rubber seal is enclosed within the outer surface of the end of corrugated stainless steel tubing, and by the end part seal of bellows in SEALING FITTING.Same, the other end of bellows and another SEALING FITTING are fixed together.The SEALING FITTING of bellows one end is provided with vent, then in bellows, passes into the test medium such as pressurized air, nitrogen by vent, putting into water observation has bubble-free, thus judges whether corrugated stainless steel tubing has leakage.
Sealing material in above-mentioned SEALING FITTING employs O type rubber seal, with low cost, is the standard piece of buying very well, change the sealing station of bellows simultaneously, avoid the section that metal bellows is sharp, avoid the damage to Sealing, improve the working life of Sealing.
Airtight leak detection joint provided by the invention changes the sealing station of bellows and Sealing, improves the working life of Sealing, reduces cost, simplify fastening means, only need tighten and can realize sealing.Simultaneously the weight of SEALING FITTING and volume are reduced, and also serve the effect reduced costs, reduce the labor intensity of workman simultaneously, saved resource, create good social benefit.
Accompanying drawing explanation
Fig. 1 is existing airtight leak detection joint structure schematic diagram;
Fig. 2 is airtight leak detection joint structure schematic diagram provided by the invention;
The structural representation when opening-closing clamp that Fig. 3 is leak detection joint airtight shown in Fig. 2 closes;
The structural representation when opening-closing clamp that Fig. 4 is leak detection joint airtight shown in Fig. 2 is opened;
Fig. 5 is the side-looking structural representation of SEALING FITTING in Fig. 2 and opening-closing clamp.
Embodiment
In order to be more readily understood structure of the present invention and the functional character that can reach and advantage, hereafter by preferred embodiment of the present invention, and coordinate graphic being described below in detail:
As shown in Figures 2 and 3, the invention provides a kind of airtight leak detection joint for bellows, described joint comprises SEALING FITTING 21, opening-closing clamp 23, O type rubber seal 22; Described SEALING FITTING 21 is provided with Seal cage 211, adapter cavity 212, connecting wall 213; Described O type rubber seal 22 is placed in Seal cage 211, and described adapter cavity 212 is between Seal cage 211 and connecting wall 213; Described opening-closing clamp 23 comprises fixing part 200 and joint 231, is provided with through hole 233 in fixing part 200 and joint 231, and the outer surface of joint 231 is junction surface; Described opening-closing clamp 23 utilizes junction surface to be fixed on connecting wall.
Described SEALING FITTING comprises the SEALING FITTING being provided with vent and the SEALING FITTING not arranging vent.
During leak detection, the through hole of opening-closing clamp is passed in the end of bellows 1, O type rubber seal 22 is enclosed within the outer surface of the end of corrugated stainless steel tubing 1, and the end of bellows is placed in the Seal cage 211 of SEALING FITTING, corrugated tube end is sealed in Seal cage 211 by O type rubber seal 22; Opening-closing clamp 23 utilizes junction surface to be fixed on the connecting wall of SEALING FITTING, thus bellows 1 and SEALING FITTING 21 is fixed together.Same, the other end of bellows and another SEALING FITTING are fixed together.The SEALING FITTING of bellows one end is provided with vent, the SEALING FITTING of the bellows the other end does not arrange vent, then in bellows, the test medium such as pressurized air, nitrogen is passed into by vent, then bellows is put into water observation and have bubble-free, thus judge whether corrugated stainless steel tubing has leakage.
The junction surface of opening-closing clamp is provided with outside thread, the internal surface of the connecting wall of SEALING FITTING is provided with internal thread, adopt between opening-closing clamp with SEALING FITTING and be threaded, only need tighten during use and by the end winding support of bellows in the Seal cage of SEALING FITTING, thus the sealing between SEALING FITTING and corrugated tube end can be completed.Described screw thread can be coarse thread.
Embodiment 1
As shown in Figure 2, Figure 3 and Figure 4, the airtight leak detection joint for bellows provided by the invention, wherein, described opening-closing clamp is connected with adopting coarse thread between SEALING FITTING.The internal surface 232 of described opening-closing clamp is ripple struction, and the outer surface of described ripple struction and bellows is suitable.
Described opening-closing clamp also comprises link 236, and as shown in Figure 5, described link 236 is arranged on fixing part 200.Described fixing part 200 and joint 231 are divided into the first fixed block 234 and the second fixed block 235; Described first fixed block 234 is connected together by link 236 with the second fixed block 235, and the first fixed block 234 and the second fixed block 235 are opened by link 236 or closed.
Described link 236 comprises junction button 239, and one end 2391 of junction button is fixed on the second fixed block 235, and junction button 239 comprises rotating shaft 2390, rotating shaft 2390 is connected with connecting sheet 2392, and described connecting sheet 2392 is fixed on the first fixed block 234.
One end 2391 of described junction button is fixed on the second fixed block 235 by screw 238, and described connecting sheet 2392 is fixed on the first fixed block 234 by screw 237.
Described first fixed block 234 and the second fixed block 235 can be opened into 90o angle by link 236.
Above-mentioned opening-closing clamp have employed can the structure of folding, and bellows is put into rear closed can completing and gripped.
The cross section of the fixing part 200 of described opening-closing clamp is ring, and the cross section of described joint 231 is ring.
The cross section of the Seal cage 211 of described SEALING FITTING is circular.
The cross section of described first fixed block 234 is semicircle, and the cross section of described second fixed block 235 is semicircle.
The above, be only preferred embodiment of the present invention, be not intended to limit protection scope of the present invention.Every equalization done according to content of the present invention changes and modifies, and is all encompassed in the scope of the claims of the present invention.
Claims (10)
1., for an airtight leak detection joint for bellows, it is characterized in that, described joint comprises SEALING FITTING, opening-closing clamp, rubber seal; Described opening-closing clamp is used for fixing bellows, and described SEALING FITTING and rubber seal are used for the end of seal bellows.
2. airtight leak detection joint according to claim 1, it is characterized in that, described joint comprises SEALING FITTING, opening-closing clamp, O type rubber seal; Described SEALING FITTING is provided with Seal cage, adapter cavity, connecting wall; Described O type rubber seal is placed in Seal cage, and described adapter cavity is between Seal cage and connecting wall; Described opening-closing clamp comprises fixing part and joint, is provided with through hole in fixing part and joint, and the outer surface of joint is junction surface; Described opening-closing clamp utilizes junction surface to be fixed on connecting wall.
3. airtight leak detection joint according to claim 2, is characterized in that, the internal surface of described opening-closing clamp is ripple struction, and the outer surface of described ripple struction and bellows is suitable.
4. airtight leak detection joint according to claim 3, it is characterized in that, described opening-closing clamp also comprises link, and described link is arranged on fixing part; Described fixing part and joint are divided into the first fixed block and the second fixed block; Described first fixed block is connected together by link with the second fixed block, and the first fixed block and the second fixed block are opened by link or closed.
5. airtight leak detection joint according to claim 4, it is characterized in that, described link comprises junction button, one end of junction button is fixed on the second fixed block, junction button comprises rotating shaft, and rotating shaft is connected with connecting sheet, and described connecting sheet is fixed on the first fixed block.
6. airtight leak detection joint according to claim 5, is characterized in that, one end of described junction button is fixed by screws on the second fixed block, and described connecting sheet is fixed by screws on the first fixed block.
7. airtight leak detection joint according to claim 5, is characterized in that, described first fixed block and the second fixed block can be opened at an angle of 90 by link.
8. airtight leak detection joint according to claim 5, is characterized in that, the cross section of the fixing part of described opening-closing clamp is ring, and the cross section of described joint is ring.
9. airtight leak detection joint according to claim 5, is characterized in that, the cross section of described first fixed block is semicircle, and the cross section of described second fixed block is semicircle.
10. airtight leak detection joint according to claim 1, is characterized in that, described SEALING FITTING comprises the SEALING FITTING being provided with vent and the SEALING FITTING not arranging vent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420715581.2U CN204267925U (en) | 2014-11-25 | 2014-11-25 | A kind of airtight leak detection joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420715581.2U CN204267925U (en) | 2014-11-25 | 2014-11-25 | A kind of airtight leak detection joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204267925U true CN204267925U (en) | 2015-04-15 |
Family
ID=52802792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420715581.2U Expired - Fee Related CN204267925U (en) | 2014-11-25 | 2014-11-25 | A kind of airtight leak detection joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204267925U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105067200A (en) * | 2015-08-22 | 2015-11-18 | 山东同创汽车散热装置股份有限公司 | Intercooler high pressure testing device |
| CN105529601A (en) * | 2014-10-16 | 2016-04-27 | 发那科株式会社 | Mounting fixture |
| CN108896253A (en) * | 2018-05-02 | 2018-11-27 | 河南航天液压气动技术有限公司 | The seal test device and test method of bellows |
-
2014
- 2014-11-25 CN CN201420715581.2U patent/CN204267925U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105529601A (en) * | 2014-10-16 | 2016-04-27 | 发那科株式会社 | Mounting fixture |
| US9703069B2 (en) | 2014-10-16 | 2017-07-11 | Fanuc Corporation | Mounting fixture of elastic seal member |
| CN105067200A (en) * | 2015-08-22 | 2015-11-18 | 山东同创汽车散热装置股份有限公司 | Intercooler high pressure testing device |
| CN108896253A (en) * | 2018-05-02 | 2018-11-27 | 河南航天液压气动技术有限公司 | The seal test device and test method of bellows |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150415 Termination date: 20171125 |