CN204725366U - A kind of tubing special fixture for hydrostatic tester - Google Patents
A kind of tubing special fixture for hydrostatic tester Download PDFInfo
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- CN204725366U CN204725366U CN201520368435.1U CN201520368435U CN204725366U CN 204725366 U CN204725366 U CN 204725366U CN 201520368435 U CN201520368435 U CN 201520368435U CN 204725366 U CN204725366 U CN 204725366U
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- special fixture
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Abstract
For a tubing special fixture for hydrostatic tester, comprise chuck body, described chuck body inside is provided with inner chamber body and inner chamber lid, is provided with the through hole passed for tubing, and is provided with sealing mechanism between inner chamber body and inner chamber lid in described inner chamber body and inner chamber lid; Described chuck body is provided with the chuck of fixing tubing.The utility model has following beneficial effect: 1) good sealing effect, significantly increases the success rate of test, improves operating efficiency, has saved manpower and time cost; 2) assembly and disassembly is convenient.
Description
Technical field
The utility model belongs to tubing test machine field, is specifically related to a kind of tubing special fixture for hydrostatic tester.
Background technology
Pipe hydrostatic tester, for measuring the withstand voltage time to rupture of various tubing under long-time constant internal pressure and steady temperature or the maximum pressure value of instant blasting, is the checkout equipment of tubing production firm and testing agency's indispensability.
Inner screw thread copper pipe refers to smooth outer surface, and inner surface has the inner screw thread copper pipe of some and certain regular screw thread.Due to the increase of inner screw thread copper pipe internal surface area, so its heat conductivility improves ten to three 12 percent than light pipe, be widely applied in air conditioner refrigerating industry, inner screw thread copper pipe, as the one of tubing, needs to carry out hydrostatic test to it.
Inner screw thread copper pipe is carrying out in withstand voltage and explosion bulge test process, copper pipe is high for the requirement of fixture, special fixture must be used to install, can not be leaked air phenomenon, as leaked air, test i.e. failure, and the copper pipe simultaneously tested also must intercept again, so copper pipe special fixture is for whether testing successfully, play very important effect.
Existing special fixture, for enlarging is to the simple fixture of screw-shaped, in installation process, though conveniently assemble and disassemble, but in the process of the test of reality, as enlarging out-of-flatness, copper pipe can be caused to leak gas, repeat to load and unload copper pipe, and need repetition test, increase manual labor and testing cost, the one-time success rate of existing test is only 85%, and efficiency is lower.
Utility model content
For deficiency of the prior art, the utility model provides a kind of tubing special fixture for hydrostatic tester, has well withstand voltage and sealing effectiveness, and simple to operate.
The utility model is achieved through the following technical solutions.
For a tubing special fixture for hydrostatic tester, comprise chuck body, described chuck body inside is provided with inner chamber body and inner chamber lid, is provided with the through hole passed for tubing, and is provided with sealing mechanism between inner chamber body and inner chamber lid in described inner chamber body and inner chamber lid; Described chuck body is provided with the chuck of fixing tubing.
Tubing special fixture of the present utility model overcomes the shortcoming that enlarging out-of-flatness in existing fixture easily causes tubing to leak gas.During use, stretched into by tubing in the through hole that inner chamber body and inner chamber cover, and undertaken clamping by the hexagon socket head cap screw in chuck fixing, the sealing mechanism between inner chamber body and inner chamber lid can ensure sealing effectiveness, prevents gas leakage.
As preferably, described chuck body comprises can assemble all-in-one-piece fixture upper cover and fixture lower cover.Be assembled into integrally to refer to after fixture upper cover and fixture lower cover are assembled and become chuck body.Now tubing can be stretched into before assembling in the through hole that inner chamber body and inner chamber cover, and realize sealing, then fixture upper cover and fixture lower cover be dressed up chuck body, complete the clamp operation of chuck simultaneously.
As preferably, described sealing mechanism is the O type circle of sealing, and this O type circle offsets with the end face of inner chamber body and inner chamber lid respectively, ensures sealing effectiveness.
As preferably, described inner chamber body is provided with step-like reducing towards one end of inner chamber lid, and described inner chamber lid is provided with the step-like projection corresponding with step-like reducing towards one end of inner chamber body, and described O type circle is located between step-like reducing and step-like projection.This structure can play positioning action in the assembling process of inner chamber body and inner chamber lid, and provide the step surface placing O type circle, sealing effectiveness is better simultaneously.
As preferably, be bolted between described fixture upper cover and fixture lower cover, be bolted between described inner chamber body and inner chamber lid.
As preferably, the quantity of described chuck body is two, one of them is connected with testing machine connector, guarantee air-tightness, another is connected with exhaust, water interface, before guaranteeing that test starts, manually the excessive air pressure of tubing inside and water are discharged, accurately to calculate the actual pressure value in proper testing process.
As preferably, between the inner chamber body in one of them chuck body described and testing machine connector, be provided with bonded washer, between the inner chamber body in another chuck body and exhaust, water interface, be also provided with bonded washer, ensure sealing effectiveness.
Compared with prior art, the utility model has following beneficial effect: 1) good sealing effect, significantly increases the success rate of test, improves operating efficiency, has saved manpower and time cost; 2) assembly and disassembly is convenient.
Accompanying drawing explanation
Fig. 1 is front view of the present utility model.
Fig. 2 is top view of the present utility model.
Fig. 3 is sectional view of the present utility model.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is further described.
See Fig. 1 to Fig. 3, a kind of tubing special fixture for hydrostatic tester, comprise two chuck body 1, one of them is connected with testing machine connector 2 or the teflon pipe on it, and another is connected with exhaust port 6.Described chuck body 1 inside is provided with inner chamber body 4 and inner chamber lid 5, is provided with the through hole passed for tubing 3, and is provided with sealing mechanism between inner chamber body 4 and inner chamber lid 5 in described inner chamber body 4 and inner chamber lid 5, and sealing mechanism is the O type circle 42 of sealing; Described chuck body 1 is provided with the chuck 7 of fixing tubing 3.
In present embodiment, described chuck body 1 comprises can assemble all-in-one-piece fixture upper cover 11 and fixture lower cover 12; Described inner chamber body 4 is provided with step-like reducing towards one end of inner chamber lid 5, and described inner chamber lid 5 is provided with the step-like projection corresponding with step-like reducing towards one end of inner chamber body 4, and described O type circle 42 is located between step-like reducing and step-like projection.Described fixture upper cover 11 is provided with corresponding bolt hole with fixture lower cover 12, is fixed, be also bolted between described inner chamber body 4 and inner chamber lid 5 between fixture upper cover 11 and fixture lower cover 12 by fixture bolt 13; Chuck 7 completes clamp operation by chuck bolt 131.In addition, between the inner chamber body 4 in one of them chuck body 1 and testing machine connector 2, be provided with bonded washer 41, between the inner chamber body 4 in another chuck body 1 and exhaust port 6, be also provided with bonded washer 41.
When fixture of the present utility model uses, tubing 3 is stretched into inner chamber body 4 with the through hole on inner chamber lid 5, by bolt, inner chamber body 4 and inner chamber lid 5 are fixed, make O type circle 42 pressurized keep sealing, and set testing machine connector 2 and exhaust port 6; Then fixture upper cover 11 and fixture lower cover 12 are closed up, tightened together by fixture bolt 13, and make chuck 7 clamp tubing 3 by chuck bolt 131, complete assembly working.
Existing special fixture, be generally enlarging to the simple fixture of screw-shaped, in installation process, though conveniently assemble and disassemble, but in the process of the test of reality, as enlarging out-of-flatness, copper pipe can be caused to leak gas, repeat to load and unload copper pipe, and need repetition test, increase manual labor and testing cost, the one-time success rate of test is only 85%, and efficiency is lower.
Fixture good sealing effect of the present utility model, compared with existing special fixture, test success rate improves greatly, and first-time qualification rate is stabilized in more than 98%, improves operating efficiency, has saved manpower and time cost.
Protection domain of the present utility model includes but not limited to above embodiment; protection domain of the present utility model is as the criterion with claims, and any replacement that those skilled in the art will find apparent that, distortion, improvement made this technology all falls into protection domain of the present utility model.
Claims (7)
1. the tubing special fixture for hydrostatic tester, comprise chuck body (1), it is characterized in that, described chuck body (1) inside is provided with inner chamber body (4) and inner chamber lid (5), be provided with the through hole passed for tubing (3) in described inner chamber body (4) and inner chamber lid (5), and be provided with sealing mechanism between inner chamber body (4) and inner chamber lid (5); Described chuck body (1) is provided with the chuck (7) of fixing tubing (3).
2. a kind of tubing special fixture for hydrostatic tester according to claim 1, is characterized in that, described chuck body (1) comprises can assemble all-in-one-piece fixture upper cover (11) and fixture lower cover (12).
3. a kind of tubing special fixture for hydrostatic tester according to claim 2, is characterized in that, described sealing mechanism is the O type circle (42) of sealing.
4. a kind of tubing special fixture for hydrostatic tester according to claim 3, it is characterized in that, described inner chamber body (4) is provided with step-like reducing towards one end of inner chamber lid (5), described inner chamber lid (5) is provided with the step-like projection corresponding with step-like reducing towards one end of inner chamber body (4), and described O type circle (42) is located between step-like reducing and step-like projection.
5. a kind of tubing special fixture for hydrostatic tester according to any one of claim 2 to 4, it is characterized in that, be bolted between described fixture upper cover (11) and fixture lower cover (12), be bolted between described inner chamber body (4) and inner chamber lid (5).
6. a kind of tubing special fixture for hydrostatic tester according to any one of Claims 1-4, it is characterized in that, the quantity of described chuck body (1) is two, and one of them is connected with testing machine connector (2), and another is connected with exhaust port (6).
7. a kind of tubing special fixture for hydrostatic tester according to claim 6, it is characterized in that, be provided with bonded washer (41) between inner chamber body (4) on described one of them chuck body (1) and testing machine connector (2), between the inner chamber body (4) in another chuck body (1) and exhaust port (6), be also provided with bonded washer (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520368435.1U CN204725366U (en) | 2015-05-29 | 2015-05-29 | A kind of tubing special fixture for hydrostatic tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520368435.1U CN204725366U (en) | 2015-05-29 | 2015-05-29 | A kind of tubing special fixture for hydrostatic tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204725366U true CN204725366U (en) | 2015-10-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520368435.1U Active CN204725366U (en) | 2015-05-29 | 2015-05-29 | A kind of tubing special fixture for hydrostatic tester |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110018043A (en) * | 2019-03-20 | 2019-07-16 | 哈尔滨建成集团有限公司 | A kind of special fixture for both ends screw thread tube kind part hydraulic test |
| CN114235589A (en) * | 2021-12-08 | 2022-03-25 | 南通市建筑科学研究院有限公司 | Clamp of hydrostatic testing machine for pipes |
-
2015
- 2015-05-29 CN CN201520368435.1U patent/CN204725366U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110018043A (en) * | 2019-03-20 | 2019-07-16 | 哈尔滨建成集团有限公司 | A kind of special fixture for both ends screw thread tube kind part hydraulic test |
| CN114235589A (en) * | 2021-12-08 | 2022-03-25 | 南通市建筑科学研究院有限公司 | Clamp of hydrostatic testing machine for pipes |
| CN114235589B (en) * | 2021-12-08 | 2024-04-16 | 南通市建筑科学研究院有限公司 | Clamp of pipe hydrostatic testing machine |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |