CN204729658U - A kind of No leakage vacuumizes shutoff frock - Google Patents
A kind of No leakage vacuumizes shutoff frock Download PDFInfo
- Publication number
- CN204729658U CN204729658U CN201520355056.9U CN201520355056U CN204729658U CN 204729658 U CN204729658 U CN 204729658U CN 201520355056 U CN201520355056 U CN 201520355056U CN 204729658 U CN204729658 U CN 204729658U
- Authority
- CN
- China
- Prior art keywords
- valve body
- type circle
- vacuumizes
- vacuum
- fixed
- 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.)
- Active
Links
Landscapes
- Details Of Valves (AREA)
Abstract
The utility model relates to a kind of No leakage and vacuumizes shutoff frock.Also do not have a kind of structure simple, easy to use, efficient at present, the corrugated tube sealing structure vacuum shutoff frock of long service life.Feature of the present utility model is: comprise pull bar, be fixed on the spring bolt A on pull bar and spring bolt B, bellows spool, valve body, upper cap nut, for to the O type circle A sealed between the top of valve body and bellows spool, vacuum plug, O type circle B, for compressing locking pressure ring and the locking nut of O type circle B, the bottom of valve body is provided with seal groove, O type circle B is arranged in seal groove, locking pressure ring is fixed on the bottom of valve body by locking nut, locking pressure ring withstands on O type circle B, the lower end of pull bar is fixed on bellows spool, spring bolt A, upper cap nut and spring bolt B are arranged in order from top to bottom, vacuum plug and vacuum nozzle coordinate.Structure of the present utility model is simple, and reasonable in design, easy to use, efficient, long service life, maintenance period is long.
Description
Technical field
The utility model relates to one and vacuumizes shutoff frock, especially relates to a kind of No leakage and vacuumizes shutoff frock, the vacuum shutoff after having vacuumized for workpiece.
Background technique
After needing in the manufacture course of products such as welded insulated gas cylinder, low-temperature storage tank that workpiece interlayer is evacuated to product requirement, shutoff carried out to product, existing shutoff frock ubiquity troublesome poeration, maintenance period are short, easily cause the problems such as leakage in shutoff process.
If the patent No. is the Chinese patent of CN201220386807.X, disclose a kind of vacuum shutoff frock, the motive sealing form that its vacuum seal adopts pull bar to contact with seal ring, often need change seal ring, and there is seal leakage problem.And for example the patent No. is the Chinese patent of CN200810236045.3, disclose a kind of vacuum shutoff frock, the motive sealing form that its vacuum seal adopts pull bar to contact with seal ring, there is the problem the same with the Chinese patent of CN201220386807.X, and pull bar easily and locking nut friction cause pull bar scratch after damage seal ring.For another example the patent No. is the Chinese patent of CN201420460596.9, discloses a kind of vacuum shutoff frock, avoids the shortcoming of pull bar motive sealing; But pull bar and valve body adopt KF interface to be connected, complex operation, clip easily drops loss; In operating process, bellows bears moment of torsion, easily damages; Frock and Work piece sealing O type circle are without oblique compression, and sealed ring deformation is large, and the replacement cycle is short.
In sum, also do not have a kind of structure simple at present, reasonable in design, easy to use, efficient, long service life, maintenance period is long, leak free corrugated tube sealing structure vacuum shutoff frock.
Model utility content
The purpose of this utility model is to overcome above shortcomings in prior art, and provides a kind of structure simple, and reasonable in design, easy to use, efficient, long service life, the No leakage of maintenance period length vacuumizes shutoff frock.
The technical scheme in the invention for solving the above technical problem is: the structural feature that this No leakage vacuumizes shutoff frock is: comprise pull bar, be fixed on the spring bolt A on pull bar and spring bolt B, telescopic bellows spool, be provided with the valve body of mouth of finding time, for bellows spool being fixed on the upper cap nut in valve body, for to the O type circle A sealed between the top of valve body and bellows spool, be fixed on the vacuum plug bottom bellows spool, for to the O type circle B sealed between the vacuum nozzle on workpiece and the bottom of valve body, for compressing the locking pressure ring of O type circle B and the locking nut for fixing and locking pressure ring, the bottom of described valve body is provided with seal groove, described O type circle B is arranged in seal groove, described locking pressure ring is fixed on the bottom of valve body by locking nut, this locking pressure ring withstands on O type circle B, the lower end of described pull bar is fixed on bellows spool, described spring bolt A, upper cap nut and spring bolt B are arranged in order from top to bottom, described vacuum plug and vacuum nozzle coordinate.
As preferably, the top of the seal groove on valve body described in the utility model has makes O type circle B by the ramp structure of oblique compression.
As preferably, the outer wall of vacuum plug described in the utility model is provided with the Sealing coordinated with the inwall of vacuum nozzle.
As preferably, the upper end of pull bar described in the utility model is provided with handle.
As preferably, mouth of finding time described in the utility model is positioned at the wall of valve body.
As preferably, fixed between upper cap nut described in the utility model and valve body by screw thread, screw thread used between this upper cap nut and valve body is double thread screw.
The utility model compared with prior art, has the following advantages and effect: structure is simple, and reasonable in design, long service life, maintenance period is long.Good sealing effect, has stopped the leakage problem in shutoff process, reduces and vacuumizes doing over again of operation, easy to use, efficient.
Accompanying drawing explanation
Fig. 1 is the structural representation that in the utility model embodiment, No leakage vacuumizes shutoff frock.
In figure: 1, pull bar, 2, spring bolt A, 3, upper cap nut, 4, O type circle A, 5, spring bolt B, 6, bellows spool, 7, valve body, 8, mouth of finding time, 9, vacuum plug, 10, O type circle B, 11, locking pressure ring, 12, locking nut, 13, vacuum nozzle.
Embodiment
Below in conjunction with accompanying drawing, also by embodiment, the utility model is described in further detail, and following examples are that the utility model is not limited to following examples to explanation of the present utility model.
Embodiment.
See Fig. 1, No leakage in the present embodiment vacuumizes shutoff frock and comprises pull bar 1, be fixed on the spring bolt A2 on pull bar 1 and spring bolt B5, telescopic bellows spool 6, be provided with the valve body 7 of mouth 8 of finding time, for bellows spool 6 being fixed on the upper cap nut 3 in valve body 7, for to the O type circle A4 sealed between the top of valve body 7 and bellows spool 6, be fixed on the vacuum plug 9 bottom bellows spool 6, for to the O type circle B10 sealed between the vacuum nozzle 13 on workpiece and the bottom of valve body 7, for compressing the locking pressure ring 11 of O type circle B10 and the locking nut 12 for fixing and locking pressure ring 11.
In the present embodiment, the bottom of valve body 7 is provided with seal groove, O type circle B10 is arranged in seal groove, locking pressure ring 11 is fixed on the bottom of valve body 7 by locking nut 12, this locking pressure ring 11 withstands on O type circle B10, the lower end of pull bar 1 is fixed on bellows spool 6, spring bolt A2, upper cap nut 3 and spring bolt B5 are arranged in order from top to bottom, and vacuum plug 9 and vacuum nozzle 13 coordinate.
The top of the seal groove in the present embodiment on valve body 7 has usually makes O type circle B10 by the ramp structure of oblique compression.The outer wall of vacuum plug 9 is provided with the Sealing coordinated with the inwall of vacuum nozzle 13 usually.The upper end of pull bar 1 is provided with handle usually.Mouth 8 of finding time is usually located at the wall of valve body 7.Usually fixed by screw thread between upper cap nut 3 and valve body 7, screw thread used between this upper cap nut 3 and valve body 7 is double thread screw.
Locking nut 12 compact lock in the present embodiment presses ring 11, and then is compressed by O type circle B10, and between valve body 7 and vacuum nozzle 13, form vacuum seal, locking nut 12 compact lock presses ring 11, and adopt oblique compression to O type circle B10, amount of deformation is little, long service life.Adopt O type circle A4 vacuum static seal between bellows spool 6 and valve body 7, amount of deformation is little, long service life.Bellows spool 6 can adopt static seal form that vacuum plug 9 is pressed into vacuum nozzle 13.Vacuum plug 9 can be locked in block-up position and vacuumize position by spring bolt A and spring bolt B respectively.Upper cap nut 3 and valve body 7 screw thread used are double thread screw, reduce rotating cycle to 1.5 and enclose, improve operation ease.Without the need to unload lock jack panel 12 when frock is connected with vacuum nozzle 13, only need to unclamp the O type circle B that vacuum nozzle 13 can be directed into frock by locking nut 12.The front end of bellows spool 6 can containing expanding guiding, to prevent from damaging bellows spool 6 due to friction between Bellows valves core 6 and valve body 7.
In the present embodiment, to vacuumize the working principle of shutoff frock as follows for No leakage: vacuum nozzle 13 is welded on workpiece, during beginning, pull bar 1 is toward pull-up, spring bolt B5 blocks the top of upper cap nut 3, and vacuum plug 9 and vacuum nozzle 13 depart from, and is vacuumized by workpiece by the vacuum pump be connected with mouth 8 of finding time; After vacuumizing, pull bar 1 down presses and drives vacuum plug 9 to enter vacuum nozzle 13, and workpiece shutoff is complete; Unclamp upper cap nut 3 after shutoff, bellows spool 6 and vacuum plug 9 depart from; Unclamp locking nut 12, shutoff frock and vacuum nozzle 13 depart from.
In the present embodiment, No leakage vacuumizes shutoff frock and seal ring quantity is reduced to two from four, sealing configuration is optimized for static seal by motive sealing, the seal ring replacement cycle was extended for 150 days by 14 days, stop the leakage problem in shutoff process, reducing and vacuumize doing over again of operation, is the vacuum shutoff frock of current convenience and high-efficiency.
In addition, it should be noted that, the specific embodiment described in this specification, the shape, institute's title of being named etc. of its parts and components can be different, and the above content described in this specification is only to the explanation of the utility model structure example.The equivalence change that structure, feature and principle described in all foundation the utility model inventional idea are done or simple change, be included in the protection domain of the utility model patent.The utility model person of ordinary skill in the field can make various amendment or supplements or adopt similar mode to substitute to described specific embodiment; only otherwise depart from structure of the present utility model or surmount this scope as defined in the claims, protection domain of the present utility model all should be belonged to.
Claims (6)
1. a No leakage vacuumizes shutoff frock, it is characterized in that: comprise pull bar, be fixed on the spring bolt A on pull bar and spring bolt B, telescopic bellows spool, be provided with the valve body of mouth of finding time, for bellows spool being fixed on the upper cap nut in valve body, for to the O type circle A sealed between the top of valve body and bellows spool, be fixed on the vacuum plug bottom bellows spool, for to the O type circle B sealed between the vacuum nozzle on workpiece and the bottom of valve body, for compressing the locking pressure ring of O type circle B and the locking nut for fixing and locking pressure ring, the bottom of described valve body is provided with seal groove, described O type circle B is arranged in seal groove, described locking pressure ring is fixed on the bottom of valve body by locking nut, this locking pressure ring withstands on O type circle B, the lower end of described pull bar is fixed on bellows spool, described spring bolt A, upper cap nut and spring bolt B are arranged in order from top to bottom, described vacuum plug and vacuum nozzle coordinate.
2. No leakage according to claim 1 vacuumizes shutoff frock, it is characterized in that: the top of the seal groove on described valve body has makes O type circle B by the ramp structure of oblique compression.
3. No leakage according to claim 1 vacuumizes shutoff frock, it is characterized in that: the outer wall of described vacuum plug is provided with the Sealing coordinated with the inwall of vacuum nozzle.
4. the No leakage according to claim 1 or 2 or 3 vacuumizes shutoff frock, it is characterized in that: the upper end of described pull bar is provided with handle.
5. the No leakage according to claim 1 or 2 or 3 vacuumizes shutoff frock, it is characterized in that: described in mouth of finding time be positioned at the wall of valve body.
6. the No leakage according to claim 1 or 2 or 3 vacuumizes shutoff frock, it is characterized in that: fixed by screw thread between described upper cap nut and valve body, and screw thread used between this upper cap nut and valve body is double thread screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520355056.9U CN204729658U (en) | 2015-05-28 | 2015-05-28 | A kind of No leakage vacuumizes shutoff frock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520355056.9U CN204729658U (en) | 2015-05-28 | 2015-05-28 | A kind of No leakage vacuumizes shutoff frock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204729658U true CN204729658U (en) | 2015-10-28 |
Family
ID=54388011
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520355056.9U Active CN204729658U (en) | 2015-05-28 | 2015-05-28 | A kind of No leakage vacuumizes shutoff frock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204729658U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106764013A (en) * | 2015-11-25 | 2017-05-31 | 江苏华东空分设备制造有限公司 | A kind of high vacuum Push-and-pull valve |
| CN111168265A (en) * | 2019-12-20 | 2020-05-19 | 中核嘉华设备制造股份公司 | Tool for vacuum welding seal in atmospheric environment and use method thereof |
| CN112857533A (en) * | 2021-01-21 | 2021-05-28 | 北京斯克维思仪表有限公司 | Liquid level meter and drawing device |
-
2015
- 2015-05-28 CN CN201520355056.9U patent/CN204729658U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106764013A (en) * | 2015-11-25 | 2017-05-31 | 江苏华东空分设备制造有限公司 | A kind of high vacuum Push-and-pull valve |
| CN111168265A (en) * | 2019-12-20 | 2020-05-19 | 中核嘉华设备制造股份公司 | Tool for vacuum welding seal in atmospheric environment and use method thereof |
| CN112857533A (en) * | 2021-01-21 | 2021-05-28 | 北京斯克维思仪表有限公司 | Liquid level meter and drawing device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204729658U (en) | A kind of No leakage vacuumizes shutoff frock | |
| CN203189317U (en) | Mechanical balanced type soft stuffing shaft seal for pump | |
| CN203614988U (en) | Pipeline emergency repair plugging device | |
| CN204127661U (en) | The multi-sealed joint of LNG gas cylinder liquid level sensor signaling line | |
| CN205534739U (en) | Seal structure of two -way flange and packing box | |
| CN205715715U (en) | A kind of core assembly | |
| CN203921385U (en) | A kind of volume pillow packaging machine | |
| CN204729657U (en) | A kind of tie-rod sealing formula vacuumizes shutoff frock | |
| CN207420805U (en) | A kind of vacuum pump with vacuum tank integral structure | |
| CN203585812U (en) | Instrument air supply device | |
| CN205366501U (en) | Pithos sealing device | |
| CN205035073U (en) | A topping up device for transformer temperature controller | |
| CN204061360U (en) | A kind of bellow type vacuum pumping device | |
| CN208831367U (en) | A kind of hydraulic operated valve automatic reversing apparatus | |
| CN204297170U (en) | Sealed packet vanning vacuumizes and nitrogen charging device | |
| CN204677338U (en) | The engine electric-controlled injection apparatus of a kind of mine car | |
| CN207122403U (en) | Connecting tube in industrial vacuum extractor | |
| CN106680070A (en) | Compensation type self-sealing head | |
| CN207437338U (en) | A kind of intelligent hydraulic pump | |
| CN206112386U (en) | Quick end cap of ring flange | |
| CN204372540U (en) | A kind of large pressurized vessel vacuumizes sealed joint apparatus | |
| CN212177194U (en) | Double-inlet and double-return pipeline device of hydraulic support | |
| CN204254259U (en) | A kind of emptying damping device | |
| CN205135936U (en) | Ultra high pressure pump that can keep highly pressurised liquid firm output | |
| CN103722529A (en) | Modified wheelchair motor gear box oil seal assembling device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: The city of Hangzhou city of Zhejiang Province, 310022 Stonebridge Road No. 338 Patentee after: United Engineers Ltd in China Address before: The city of Hangzhou city of Zhejiang Province, 310022 Stonebridge Road No. 338 Patentee before: China Lianhe Engineering Co., Ltd., China |