CN105486457A - Airtightness test inner tensioning sealing device - Google Patents
Airtightness test inner tensioning sealing device Download PDFInfo
- Publication number
- CN105486457A CN105486457A CN201511034744.6A CN201511034744A CN105486457A CN 105486457 A CN105486457 A CN 105486457A CN 201511034744 A CN201511034744 A CN 201511034744A CN 105486457 A CN105486457 A CN 105486457A
- Authority
- CN
- China
- Prior art keywords
- rollback
- sealing
- positive stop
- seal assembly
- tensioner
- 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.)
- Pending
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/022—Test plugs for closing off the end of a pipe
Abstract
The invention provides an airtightness test inner tensioning sealing device including a main support, and a driving motor, a tensioning sealing assembly, and a testing sample support that are arranged on the main support, the driving motor is connected with a tensioning sealing assembly via a feeding device, and the testing sample support is arranged at the lower part of the main support. The extrusion sealing ring type sealing manner maximally saves the sealing materials, and during the sealing, the motor only needs less force to make a sealing rubber ring deform, namely, to take a tight sealing effect, therefore, a low-power motor can be used, energy is saved, the sealing rubber ring is less in deformation during the sealing, the service life of the sealing rubber ring is long, frequent replacement can be prevented, and during the sealing, the requirement on the performance of the sealing rubber ring is less, and the cost is saved.
Description
Technical field
The invention belongs to airtight detecting apparatus field, especially relates to a kind of airtight test internal expanding tightening seal device.
Background technology
Usually need to carry out air-leakage test to the tubing product of some one end open in field of machining, conventional mode is a gland bonnet in tubing product open end cap, is aided with snap-in force, then carries out airtight detection in pipe.There is following problem in airtight detection method like this: 1. when the gland bonnet adopted is softer, through repeatedly compressing, the edge damage of the very easily detected product of gland bonnet, life-span is shorter, if and when airtight detection pressure transient or larger time, cross the open end that soft gland bonnet easily departs from product, affect Detection results; 2., when the gland bonnet adopted is harder, gland bonnet and product openend are easily because loose contact causes sealing effectiveness bad; 3. this detection method need to gland bonnet apply power be greater than airtight detect time product cavity pressurization after pressure, therefore need the motor of relatively high power, energy loss is larger.
Summary of the invention
In view of this, the invention is intended to propose a kind of airtight test internal expanding tightening seal device, to solve problems of the prior art.
For achieving the above object, the technical scheme of the invention is achieved in that
A kind of airtight test internal expanding tightening seal device, comprise total support and be arranged on drive motor, tensioner seal assembly and the test sample holder on described total support, described drive motor connects tensioner seal assembly by feed arrangement, and described test sample Bracket setting is in described total support bottom.
Described tensioner seal assembly comprises tensioner seal assembly overcoat and is arranged on rollback block, sleeve, advance block and the O-ring seal in described tensioner seal assembly overcoat; The fastening bolt that described advance block comprises positive stop, backstop, the described positive stop of connection and described backstop and the advance contact be arranged on for contacting with tensioner seal assembly overcoat front end-plate on front side of positive stop; Described rollback block comprises rollback build portion and rollback block afterbody, described rollback block afterbody comprises round plate and cylindrical portion, described round plate to be arranged between described positive stop and described backstop and to have gap with described positive stop and described backstop, and described cylindrical portion is connected with described rollback build portion through described positive stop center pit; Be arranged with a sleeve outside described cylindrical portion between described positive stop and described rollback build portion, described sleeve overall diameter is equal with described rollback build portion overall diameter; O-ring seal is provided with between described sleeve and described rollback build portion; On the downside of described backstop, the position of corresponding described round plate is provided with spring eye, is provided with Compress Spring in described spring eye.
Further, described tensioner seal assembly overcoat is made up of upper end disc, lower end disc and outer sleeve, described upper end disc and outer sleeve, lower end disc with between outer sleeve for bolt is connected.
Further, be connected by plural uniform support column between described positive stop with described backstop, in described support column, be provided with the threaded hole coordinated with described fastening bolt.
Further, described tensioner seal assembly inside is provided with the air flue be connected with air distributing device.
Further, described O-ring seal is O RunddichtringO.
Relative to prior art, the airtight test internal expanding tightening seal device described in the invention has following advantage:
The sealing means of crush seal ring type of the present invention saves the use of encapsulant to greatest extent, in seal process, motor only needs to use less power to make O-ring seal produce distortion and can play tight sealing function, therefore, can low-power machine be used, save the energy; The deflection of O-ring seal in seal process is less, and therefore, the life-span of O-ring seal is longer, without the need to frequent replacing; Not high to the performance requirement of O-ring seal during sealing, therefore provide cost savings.
Accompanying drawing explanation
The accompanying drawing of the part of formation the invention is used to provide the further understanding to the invention, and the schematic description and description of the invention, for explaining the invention, does not form the improper restriction to the invention.In the accompanying drawings:
Fig. 1 is the one-piece construction schematic diagram described in the invention embodiment;
Fig. 2 is the tensioner seal assembly cut-open view described in the invention embodiment.
Description of reference numerals:
1-drive motor, 2-tensioner seal assembly, the total support of 3-, 4-tests sample holder, 21-tensioner seal assembly overcoat, 22-Compress Spring, 23-sleeve, 24-rollback block, 25-O-ring seal, 26-advance block, 241-rollback block afterbody, 242-rollback build portion, 261-advance contact, 262-positive stop, 263-backstop, 264-fastening bolt.
Embodiment
It should be noted that, when not conflicting, the embodiment in the invention and the feature in embodiment can combine mutually.
In the description of the invention, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", orientation or the position relationship of the instruction such as " outward " are based on orientation shown in the drawings or position relationship, only the invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore the restriction to the invention can not be interpreted as.In addition, term " first ", " second " etc. only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristic.Thus, one or more these features can be expressed or impliedly be comprised to the feature being limited with " first ", " second " etc.In the description of the invention, except as otherwise noted, the implication of " multiple " is two or more.
In the description of the invention, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, the concrete meaning of above-mentioned term in the invention can be understood by concrete condition.
Below with reference to the accompanying drawings and describe the invention in detail in conjunction with the embodiments.
The airtight test internal expanding tightening seal device that the invention provides comprises total support 3 and is arranged on drive motor 1, tensioner seal assembly 2 and the test sample holder 4 on described total support 3, described drive motor 1 connects tensioner seal assembly 2 by feed arrangement, and described test sample holder 4 is arranged on described total support 3 bottom.
Tensioner seal assembly 2 comprises tensioner seal assembly overcoat 21 and is arranged on rollback block 24, sleeve 23, advance block 26 and the O-ring seal 25 in described tensioner seal assembly overcoat 21; Described advance block 26 comprises positive stop 262, backstop 263, the fastening bolt 264 connecting described positive stop and described backstop and the advance contact 261 be arranged on for contacting with tensioner seal assembly overcoat 21 front end-plate on front side of positive stop 262; Described rollback block 24 comprises rollback build portion 242 and rollback block afterbody 241, described rollback block afterbody 241 comprises round plate and cylindrical portion, described round plate to be arranged between described positive stop 262 and described backstop 263 and to have gap with described positive stop 262 and described backstop 263, and described cylindrical portion is connected with described rollback block 24 head through described positive stop 262 center pit; Be arranged with a sleeve 23 outside described cylindrical portion between described positive stop 262 and described rollback build portion 242, described sleeve 23 overall diameter is equal with described rollback build portion 242 overall diameter; O-ring seal 25 is provided with between described sleeve 23 and described rollback build portion 242; On the downside of described backstop 263, the position of corresponding described round plate is provided with spring eye, is provided with Compress Spring 22 in described spring eye.
Tensioner seal assembly overcoat 21 is made up of upper end disc, lower end disc and outer sleeve, described upper end disc and outer sleeve, lower end disc with between outer sleeve for bolt is connected.
Be connected by plural uniform support column between positive stop 262 with described backstop 263, in described support column, be provided with the threaded hole coordinated with described fastening bolt.
Tensioner seal assembly 2 inside is provided with the air flue be connected with air distributing device.
O-ring seal 25 is O RunddichtringO.
The seal process of the invention is such, testing product is clamped on test sample holder 4, coaxial with tensioner seal assembly 2, drive motor 1 makes advance block 26 move down together with rollback block 24, tensioner seal assembly overcoat 21 by feed mechanism, rollback block 24 front portion is stretched in testing product, when continuing to move down, the open end of testing product and the lower end disc joint of tensioner seal assembly overcoat 21, make the stop motion of tensioner seal assembly overcoat 21.Advance block 26 continues to move down together with rollback block 24, during lower end disk contact with stop motion of advance contact 261, advance block 26 also stop motion, the O-ring seal 25 now stretching into testing product has certain contact with testing product inwall, its reacting force makes rollback block 24 rollback block to mobile in the other direction, the rollback build portion 242 of relative movement and sleeve 23 are by O-ring seal 25 crimp, and the O-ring seal 25 of extension will more closely by testing product shutoff.
The foregoing is only the preferred embodiment of the invention; not in order to limit the invention; within all spirit in the invention and principle, any amendment done, equivalent replacement, improvement etc., within the protection domain that all should be included in the invention.
Claims (5)
1. an airtight test internal expanding tightening seal device, it is characterized in that: comprise total support and be arranged on drive motor, tensioner seal assembly and the test sample holder on described total support, described drive motor connects tensioner seal assembly by feed arrangement, described test sample Bracket setting is in described total support bottom
Described tensioner seal assembly comprises tensioner seal assembly overcoat and is arranged on rollback block, sleeve, advance block and the O-ring seal in described tensioner seal assembly overcoat; The fastening bolt that described advance block comprises positive stop, backstop, the described positive stop of connection and described backstop and the advance contact be arranged on for contacting with tensioner seal assembly overcoat front end-plate on front side of positive stop; Described rollback block comprises rollback build portion and rollback block afterbody, described rollback block afterbody comprises round plate and cylindrical portion, described round plate to be arranged between described positive stop and described backstop and to have gap with described positive stop and described backstop, and described cylindrical portion is connected with described rollback build portion through described positive stop center pit; Be arranged with a sleeve outside described cylindrical portion between described positive stop and described rollback build portion, described sleeve overall diameter is equal with described rollback build portion overall diameter; O-ring seal is provided with between described sleeve and described rollback build portion; On the downside of described backstop, the position of corresponding described round plate is provided with spring eye, is provided with Compress Spring in described spring eye.
2. airtight test internal expanding tightening seal device according to claim 1, it is characterized in that: described tensioner seal assembly overcoat is made up of upper end disc, lower end disc and outer sleeve, described upper end disc and outer sleeve, lower end disc with between outer sleeve for bolt is connected.
3. airtight test internal expanding tightening seal device according to claim 1, is characterized in that: be connected by plural uniform support column between described positive stop with described backstop, is provided with the threaded hole coordinated with described fastening bolt in described support column.
4. the airtight test internal expanding tightening seal device according to claims 1 to 3 any one, is characterized in that: described tensioner seal assembly inside is provided with the air flue be connected with air distributing device.
5. the airtight test internal expanding tightening seal device according to claims 1 to 3 any one, is characterized in that: described O-ring seal is O RunddichtringO.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511034744.6A CN105486457A (en) | 2015-12-31 | 2015-12-31 | Airtightness test inner tensioning sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511034744.6A CN105486457A (en) | 2015-12-31 | 2015-12-31 | Airtightness test inner tensioning sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105486457A true CN105486457A (en) | 2016-04-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511034744.6A Pending CN105486457A (en) | 2015-12-31 | 2015-12-31 | Airtightness test inner tensioning sealing device |
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| Country | Link |
|---|---|
| CN (1) | CN105486457A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110612071A (en) * | 2017-05-08 | 2019-12-24 | Pmu创新股份有限公司 | Aortic graft occluder |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060225801A1 (en) * | 2005-04-11 | 2006-10-12 | William Field | Pipe plug |
| CN201247127Y (en) * | 2008-06-06 | 2009-05-27 | 广西玉柴机器股份有限公司 | Inner cavity leakage-trial screw thread sealing device |
| CN103528761A (en) * | 2013-10-24 | 2014-01-22 | 安徽江淮汽车股份有限公司 | Internal expansion block sealing device for hole |
| CN103712751A (en) * | 2013-12-19 | 2014-04-09 | 怡得乐电子(杭州)有限公司 | Adaptive sealing test device applicable to multi-product special-shaped cavities |
| CN204253877U (en) * | 2014-11-21 | 2015-04-08 | 广东鸿图南通压铸有限公司 | The two sections of internal expanding sealing configurations that a kind of cushion rubber can shrink automatically |
| CN104633115A (en) * | 2015-02-02 | 2015-05-20 | 上海贤日自动化设备有限公司 | Compression expanding type pipe opening inner diameter high-pressure sealing device and method |
| CN205373964U (en) * | 2015-12-31 | 2016-07-06 | 天津维克沃德科技有限公司 | Tight sealing device of airtight test internal expanding |
-
2015
- 2015-12-31 CN CN201511034744.6A patent/CN105486457A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060225801A1 (en) * | 2005-04-11 | 2006-10-12 | William Field | Pipe plug |
| CN201247127Y (en) * | 2008-06-06 | 2009-05-27 | 广西玉柴机器股份有限公司 | Inner cavity leakage-trial screw thread sealing device |
| CN103528761A (en) * | 2013-10-24 | 2014-01-22 | 安徽江淮汽车股份有限公司 | Internal expansion block sealing device for hole |
| CN103712751A (en) * | 2013-12-19 | 2014-04-09 | 怡得乐电子(杭州)有限公司 | Adaptive sealing test device applicable to multi-product special-shaped cavities |
| CN204253877U (en) * | 2014-11-21 | 2015-04-08 | 广东鸿图南通压铸有限公司 | The two sections of internal expanding sealing configurations that a kind of cushion rubber can shrink automatically |
| CN104633115A (en) * | 2015-02-02 | 2015-05-20 | 上海贤日自动化设备有限公司 | Compression expanding type pipe opening inner diameter high-pressure sealing device and method |
| CN205373964U (en) * | 2015-12-31 | 2016-07-06 | 天津维克沃德科技有限公司 | Tight sealing device of airtight test internal expanding |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110612071A (en) * | 2017-05-08 | 2019-12-24 | Pmu创新股份有限公司 | Aortic graft occluder |
| CN110612071B (en) * | 2017-05-08 | 2022-01-11 | Pmu创新股份有限公司 | Aortic graft occluder |
| US11458006B2 (en) | 2017-05-08 | 2022-10-04 | Pmu Innovations Gmbh | Aortic graft occluder |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160413 |
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| RJ01 | Rejection of invention patent application after publication |