CN204556176U - Welded gas cylinder tightness test fixture - Google Patents
Welded gas cylinder tightness test fixture Download PDFInfo
- Publication number
- CN204556176U CN204556176U CN201520255779.1U CN201520255779U CN204556176U CN 204556176 U CN204556176 U CN 204556176U CN 201520255779 U CN201520255779 U CN 201520255779U CN 204556176 U CN204556176 U CN 204556176U
- Authority
- CN
- China
- Prior art keywords
- gas cylinder
- head
- expansion
- welded gas
- frame
- 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
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Abstract
The utility model discloses a kind of welded gas cylinder tightness test fixture, comprise frame, frame is provided with tapering expansion-head, tapering expansion-head is inner with a vent hole structure, tapering expansion-head can move up and down in frame, the bottom of tapering expansion-head is connected with locking cylinder by syndeton, the top of tapering expansion-head is stretched in the valve seat of welded gas cylinder, expansion sleeve is provided with between frame and the valve seat end face of welded gas cylinder, described expansion sleeve is enclosed within tapering expansion-head, expansion sleeve is provided with a bulge-structure, bulge-structure stretches in the valve seat of described welded gas cylinder, frame is also provided with the air inlet escape pipe be connected with vent hole structure.The utility model improves welded gas cylinder in the stress of carrying out air-tight test, makes welded gas cylinder only be subject to gaseous tension when carrying out air-tight test, and interferes without external force; Save time and the labour of clamping gas cylinder, save test site simultaneously.
Description
Technical field
the utility model relates to a kind of fixture, particularly a kind of welded gas cylinder tightness test fixture.
Background technology
welded gas cylinder needs to carry out air-tight test after welding fabrication, and traditional tightness test fixture is by holding out against or adopt the method for threaded together to be fixed by gas cylinder at welded gas cylinder two ends.Fix gas cylinder by the mode that gas cylinder two ends are surely tight, the stress of whole gas cylinder can be affected, to meeting gas cylinder air tight test method completely.By the mode that gas cylinder is fixed by the mode of threaded together, need to add crossover sub, and screw thread has certain length, the time of tightening is relatively long, also needs to dismantle simultaneously, affects production efficiency.
Utility model content
The purpose of this utility model is to overcome the problems referred to above, provides a kind of welded gas cylinder tightness test fixture.
For achieving the above object, the method that the utility model adopts is: a kind of welded gas cylinder tightness test fixture, comprise frame, described frame is provided with tapering expansion-head, described tapering expansion-head is inner with a vent hole structure, described tapering expansion-head can move up and down in described frame, the bottom of tapering expansion-head is connected with locking cylinder by syndeton, the top of tapering expansion-head is stretched in the valve seat of welded gas cylinder, expansion sleeve is provided with between frame and the valve seat end face of welded gas cylinder, described expansion sleeve is enclosed within tapering expansion-head, expansion sleeve is provided with a bulge-structure, bulge-structure stretches in the valve seat of described welded gas cylinder, frame is also provided with the air inlet escape pipe be connected with vent hole structure.
Improve as one of the present utility model, be provided with a primary inlet port and three air admission holes in described tapering expansion-head inside.
Improve as one of the present utility model, the diameter of described primary inlet port is not less than 5mm, and the diameter of an air admission hole is not less than 1.5mm.
Improve as one of the present utility model, between the valve seat end face of described expansion sleeve and welded gas cylinder, be provided with the first O-ring seal.
Improve as one of the present utility model, between described tapering expansion-head and frame, be provided with the second O-ring seal.
Beneficial effect:
The welded gas cylinder tightness test fixture that the utility model provides improves welded gas cylinder in the stress of carrying out air-tight test, makes welded gas cylinder only be subject to gaseous tension when carrying out air-tight test, and interferes without external force; Saved time and the labour of clamping gas cylinder, the air tightness tester of 4 stations can substitute former 4 workmans and repeatedly dismantle, and has saved test site simultaneously.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
In figure, each parts are: 1-welded gas cylinder 2-tapering expansion-head 3-first O-ring seal 4-expansion sleeve 5-second O-ring seal 6-air inlet escape pipe 7-frame 8-locking cylinder.
Embodiment
Below in conjunction with the drawings and specific embodiments, illustrate the utility model further, the present embodiment is implemented under premised on technical solutions of the utility model, should understand these embodiments and only be not used in restriction scope of the present utility model for illustration of the utility model.
A kind of welded gas cylinder tightness test fixture as shown in Figure 1, comprise frame 7, described frame 7 is provided with tapering expansion-head 2, described tapering expansion-head 2 inside is with a vent hole structure, described tapering expansion-head 2 can move up and down in described frame 7, is provided with the second O-ring seal 5 and seals between tapering expansion-head 2 and frame 7.
The bottom of tapering expansion-head 2 is connected with locking cylinder 8 by syndeton, by locking cylinder 8, tapering expansion-head 2 can be pulled down, the top of tapering expansion-head 2 is stretched in the valve seat of welded gas cylinder 1, expansion sleeve 4 is provided with between frame 7 and the valve seat end face of welded gas cylinder 1, described expansion sleeve 4 is enclosed within tapering expansion-head 2, expansion sleeve 4 is provided with a bulge-structure, bulge-structure stretches in the valve seat of described welded gas cylinder 1, is provided with the first O-ring seal 3 and seals between described expansion sleeve 2 and the valve seat end face of welded gas cylinder.Frame 7 is also provided with the air inlet escape pipe 6 be connected with vent hole structure, in frame 7, is provided with the space moved up and down for air inlet escape pipe 6 simultaneously.
Expansion sleeve leading section can Linear cut be three to six deciles, and conehead inner vent hole is the primary inlet port that a diameter is not less than Φ 5mm, is dispersed at end the pore that three diameters are not more than Φ 1.5mm.
Because welded gas cylinder gas-tight test pressure is lower, seat material is Fine Steel Casting iron, and compressive property is excellent, so the utility model is fixed bottle by the mode compressing valve seat end face.Device of the present utility model is by adopting locking cylinder 8 to pull down the tapering expansion-head 2 that taut band has vent hole structure, the bulge-structure that expansion sleeve 4 stretches in welded gas cylinder valve seat outwards being strutted swell, and locking bottleneck valve seat end face, forms good sealing.And carry out air-tight test by the vent hole structure on air inlet escape pipe 6 and tapering expansion-head 2.
The welded gas cylinder tightness test fixture that the utility model provides improves welded gas cylinder in the stress of carrying out air-tight test, makes welded gas cylinder only be subject to gaseous tension when carrying out air-tight test, and interferes without external force; Saved time and the labour of clamping gas cylinder, the air tightness tester of 4 stations can substitute former 4 workmans and repeatedly dismantle, and has saved test site simultaneously.
Claims (5)
1. a welded gas cylinder tightness test fixture, it is characterized in that: comprise frame (7), described frame (7) is provided with tapering expansion-head (2), described tapering expansion-head (2) is inner with a vent hole structure, described tapering expansion-head (2) can move up and down in described frame (7), the bottom of tapering expansion-head (2) is connected with locking cylinder by syndeton, the top of tapering expansion-head (2) is stretched in the valve seat of welded gas cylinder, expansion sleeve (4) is provided with between frame (7) and the valve seat end face of welded gas cylinder, described expansion sleeve (4) is enclosed within tapering expansion-head (2), expansion sleeve (4) is provided with a bulge-structure, bulge-structure stretches in the valve seat of described welded gas cylinder, frame (7) is also provided with the air inlet escape pipe (6) be connected with vent hole structure.
2. a kind of welded gas cylinder tightness test fixture according to claim 1, is characterized in that: be provided with a primary inlet port and three air admission holes in described tapering expansion-head (2) inside.
3. a kind of welded gas cylinder tightness test fixture according to claim 2, is characterized in that: the diameter of described primary inlet port is not less than 5mm, and the diameter of an air admission hole is not less than 1.5mm.
4. a kind of welded gas cylinder tightness test fixture according to claim 1, is characterized in that: be provided with the first O-ring seal (3) between described expansion sleeve (4) and the valve seat end face of welded gas cylinder.
5. a kind of welded gas cylinder tightness test fixture according to claim 1, is characterized in that: between described tapering expansion-head (2) and frame (7), be provided with the second O-ring seal (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520255779.1U CN204556176U (en) | 2015-04-27 | 2015-04-27 | Welded gas cylinder tightness test fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520255779.1U CN204556176U (en) | 2015-04-27 | 2015-04-27 | Welded gas cylinder tightness test fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204556176U true CN204556176U (en) | 2015-08-12 |
Family
ID=53831271
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520255779.1U Expired - Fee Related CN204556176U (en) | 2015-04-27 | 2015-04-27 | Welded gas cylinder tightness test fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204556176U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108088627A (en) * | 2017-12-30 | 2018-05-29 | 台州市健特交通器材有限公司 | A kind of car light air-leakage test air inlet gun |
| CN108181054A (en) * | 2017-12-24 | 2018-06-19 | 安徽工程大学 | Tank body device for detecting sealability |
-
2015
- 2015-04-27 CN CN201520255779.1U patent/CN204556176U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108181054A (en) * | 2017-12-24 | 2018-06-19 | 安徽工程大学 | Tank body device for detecting sealability |
| CN108181054B (en) * | 2017-12-24 | 2020-02-07 | 安徽工程大学 | Tank body sealing performance detection device |
| CN108088627A (en) * | 2017-12-30 | 2018-05-29 | 台州市健特交通器材有限公司 | A kind of car light air-leakage test air inlet gun |
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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: 20150812 Termination date: 20210427 |