CN204729657U - A kind of tie-rod sealing formula vacuumizes shutoff frock - Google Patents
A kind of tie-rod sealing formula vacuumizes shutoff frock Download PDFInfo
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- CN204729657U CN204729657U CN201520355026.8U CN201520355026U CN204729657U CN 204729657 U CN204729657 U CN 204729657U CN 201520355026 U CN201520355026 U CN 201520355026U CN 204729657 U CN204729657 U CN 204729657U
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Abstract
The utility model relates to a kind of tie-rod sealing formula and vacuumizes shutoff frock.Also do not have a kind of structure simple at present, such frock of long service life.The technical scheme in the invention for solving the above technical problem is: the feature that this tie-rod sealing formula vacuumizes shutoff frock is: comprise pull bar, upper and lower is respectively arranged with the mother nut of seal groove and lower seal groove cavity, O type circle A, upper press ring, upper cap nut, O type circle B, lower pressure ring, lower nut, be provided with the valve body of mouth of finding time, O type circle C, O type circle D, locking pressure ring, locking nut and vacuum plug, O type circle A and O type circle B lays respectively in seal groove and lower seal groove cavity, upper press ring is fixed on the top of mother nut by upper cap nut, lower pressure ring is fixed on the bottom of mother nut by lower nut, mother nut is fixed on the upper end of valve body, pull bar cross-under is in mother nut and valve body, vacuum nozzle on vacuum plug and workpiece coordinates.Structure of the present utility model is simple, long service life.
Description
Technical field
The utility model relates to a kind of frock, especially relates to a kind of tie-rod sealing formula and vacuumizes shutoff frock, belong to a kind of workpiece vacuumized after vacuum shutoff frock.
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, its pull bar and valve body adopt three road O type circle sealings, back-up ring interval is adopted between O type circle, the press seal that the top back-up ring realizes O type circle is extruded by nut, O type circle distortion in this kind of structure is serious, and the replacement cycle is short, and risk of leakage is large.
Also do not have a kind of structure simple, reasonable in design at present, reliable performance, long service life, the tie-rod sealing formula of maintenance period length vacuumizes 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, reliable performance, long service life, the tie-rod sealing formula 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 tie-rod sealing formula vacuumizes shutoff frock is: comprise pull bar, upper and lower is respectively arranged with the mother nut of seal groove and lower seal groove cavity, for to the O type circle A sealed between the top of mother nut and pull bar, for compressing the upper press ring of O type circle A, for the upper cap nut of fixing upper press ring, for to the O type circle B sealed between the bottom of mother nut and pull bar, for compressing the lower pressure ring of O type circle B, for the lower nut of fixing lower pressure ring, be provided with the valve body of mouth of finding time, for to the O type circle C sealed between mother nut and valve body, for to the O type circle D sealed between the vacuum nozzle on workpiece and valve body, for compressing the locking pressure ring of O type circle D, for locking nut and the vacuum plug being fixed on pull bar lower end of fixing and locking pressure ring, in the upper seal groove that described O type circle A and O type circle B lays respectively at mother nut and lower seal groove cavity, described upper press ring is fixed on the top of mother nut by upper cap nut, this upper press ring withstands O type circle A, described lower pressure ring is fixed on the bottom of mother nut by lower nut, this lower pressure ring withstands O type circle B, described mother nut is fixed on the upper end of valve body, described O type circle C is between mother nut and valve body, the lower end of described valve body is provided with seal groove, described O type circle D is arranged in seal groove, described locking pressure ring is fixed on the lower end of valve body by locking nut, this locking pressure ring withstands on O type circle D, described pull bar cross-under is in mother nut and valve body, described vacuum plug and vacuum nozzle coordinate.
As preferably, the bottom of upper seal groove described in the utility model has makes O type circle A by the ramp structure of oblique compression.
As preferably, the top of lower seal groove cavity described in the utility model has makes O type circle B by the ramp structure of oblique compression.
As preferably, mouth of finding time described in the utility model is positioned at the wall of valve body.
As preferably, the upper end of pull bar described in the utility model is provided with handle.
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, pull bar described in the utility model successively cross-under in upper cap nut, upper press ring, O type circle A, mother nut, O type circle B, lower pressure ring, lower nut and valve body.
The utility model compared with prior art, has the following advantages and effect: structure is simple, reasonable in design, easy to use, reliable performance, long service life.The structure of tie-rod sealing is unique, improves the working life of O type circle, decreases the leakage problem in shutoff process.
Accompanying drawing explanation
Fig. 1 is the structural representation that in the utility model embodiment, tie-rod sealing formula vacuumizes shutoff frock.
Fig. 2 is the partial enlargement structural representation that in the utility model embodiment, tie-rod sealing formula vacuumizes shutoff frock.
In figure: 1, pull bar, 2, upper cap nut, 3, upper press ring, 4, O type circle A, 5, mother nut, 6, O type circle B, 7, lower pressure ring, 8, O type circle C, 9, lower nut, 10, valve body, 11, mouth of finding time, 12, vacuum plug, 13, O type circle D, 14, locking pressure ring, 15, locking nut, 16, 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 to Fig. 2, in the present embodiment, tie-rod sealing formula vacuumizes shutoff frock and comprises pull bar 1, upper and lower is respectively arranged with the mother nut 5 of seal groove and lower seal groove cavity, for to the O type circle A4 sealed between the top of mother nut 5 and pull bar 1, for compressing the upper press ring 3 of O type circle A4, for the upper cap nut 2 of fixing upper press ring 3, for to the O type circle B6 sealed between the bottom of mother nut 5 and pull bar 1, for compressing the lower pressure ring 7 of O type circle B6, for the lower nut 9 of fixing lower pressure ring 7, be provided with the valve body 10 of mouth 11 of finding time, for to the O type circle C8 sealed between mother nut 5 and valve body 10, for to the O type circle D13 sealed between the vacuum nozzle 16 on workpiece and valve body 10, for compressing the locking pressure ring 14 of O type circle D13, for locking nut 15 and the vacuum plug 12 being fixed on pull bar 1 lower end of fixing and locking pressure ring 14.Vacuum nozzle 16 on workpiece is positioned at the lower end of valve body 10.
In the upper seal groove that O type circle A4 in the present embodiment and O type circle B6 lays respectively at mother nut 5 and lower seal groove cavity, upper press ring 3 is fixed on the top of mother nut 5 by upper cap nut 2, and this upper press ring 3 withstands O type circle A4.Lower pressure ring 7 is fixed on the bottom of mother nut 5 by lower nut 9, this lower pressure ring 7 withstands O type circle B6.
Mother nut 5 in the present embodiment is fixed on the upper end of valve body 10, O type circle C8 is between mother nut 5 and valve body 10, the lower end of valve body 10 is provided with seal groove, O type circle D13 is arranged in seal groove, locking pressure ring 14 is fixed on the lower end of valve body 10 by locking nut 15, this locking pressure ring 14 withstands on O type circle D13.
Pull bar 1 cross-under in the present embodiment is in mother nut 5 and valve body 10, and the usual cross-under successively of this pull bar 1 is in upper cap nut 2, upper press ring 3, O type circle A4, mother nut 5, O type circle B6, lower pressure ring 7, lower nut 9 and valve body 10.Vacuum plug 12 and vacuum nozzle 16 coordinate.
On the present embodiment, the bottom of seal groove usually has and makes O type circle A4 by the ramp structure of oblique compression, and the top of lower seal groove cavity has usually makes O type circle B6 by the ramp structure of oblique compression.Mouth 11 of finding time is usually located at the wall of valve body 10.The upper end of pull bar 1 is provided with handle usually.The outer wall of vacuum plug 12 is provided with the Sealing coordinated with the inwall of vacuum nozzle 16 usually.
O type circle A4 in the present embodiment and O type circle B6 forms double manifold vacuum and seals and limit moving radially of pull bar 1, and valve body 10 and atmosphere environment are carried out effective vacuum insulation.Upper cap nut 2 compresses upper press ring 3, and then is compressed by O type circle A4, between pull bar 1 and mother nut 5, form vacuum seal, and upper cap nut 2 compresses upper press ring 3 couples of O type circle A4 and adopts oblique compression, and amount of deformation is little, long service life.Lower nut 9 compresses lower pressure ring 7, and then is compressed by O type circle B6, forms vacuum seal between pull bar 1 and mother nut 5, and lower nut 9 compresses lower pressure ring 7 couples of O type circle B6 and adopts oblique compression, and amount of deformation is little, long service life.Adopt O type circle C8 vacuum static seal between mother nut 5 and valve body 10, amount of deformation is little, long service life.
Upper cap nut 2 in the present embodiment, upper press ring 3, O type circle A4, mother nut 5, O type circle B6, lower pressure ring 7, O type circle C8 and lower nut 9 can form an individual components, are convenient for changing.The surface of pull bar 1 can polishing after chromium plating, reduces and weares and teares to the scuffing of O type circle, extend the replacement cycle of O type circle.
In the present embodiment, to vacuumize the working principle of shutoff frock as follows for tie-rod sealing formula: vacuum nozzle 16 is welded on workpiece, and during beginning, pull bar 1 is toward pull-up, and vacuum plug 12 and vacuum nozzle 16 depart from, and is vacuumized by workpiece by the vacuum pump be connected with mouth 11 of finding time; After vacuumizing, pull bar 1 down presses and drives vacuum plug 12 to enter vacuum nozzle 16, and workpiece shutoff is complete.Adopt new tie-rod sealing structure, improve the life-span of O type circle, the seal ring replacement cycle was extended for 80 days by 14 days, decreased the leakage problem in shutoff process.
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 (7)
1. a tie-rod sealing formula vacuumizes shutoff frock, it is characterized in that: comprise pull bar, upper and lower is respectively arranged with the mother nut of seal groove and lower seal groove cavity, for to the O type circle A sealed between the top of mother nut and pull bar, for compressing the upper press ring of O type circle A, for the upper cap nut of fixing upper press ring, for to the O type circle B sealed between the bottom of mother nut and pull bar, for compressing the lower pressure ring of O type circle B, for the lower nut of fixing lower pressure ring, be provided with the valve body of mouth of finding time, for to the O type circle C sealed between mother nut and valve body, for to the O type circle D sealed between the vacuum nozzle on workpiece and valve body, for compressing the locking pressure ring of O type circle D, for locking nut and the vacuum plug being fixed on pull bar lower end of fixing and locking pressure ring, in the upper seal groove that described O type circle A and O type circle B lays respectively at mother nut and lower seal groove cavity, described upper press ring is fixed on the top of mother nut by upper cap nut, this upper press ring withstands O type circle A, described lower pressure ring is fixed on the bottom of mother nut by lower nut, this lower pressure ring withstands O type circle B, described mother nut is fixed on the upper end of valve body, described O type circle C is between mother nut and valve body, the lower end of described valve body is provided with seal groove, described O type circle D is arranged in seal groove, described locking pressure ring is fixed on the lower end of valve body by locking nut, this locking pressure ring withstands on O type circle D, described pull bar cross-under is in mother nut and valve body, described vacuum plug and vacuum nozzle coordinate.
2. tie-rod sealing formula according to claim 1 vacuumizes shutoff frock, it is characterized in that: the bottom of described upper seal groove has makes O type circle A by the ramp structure of oblique compression.
3. tie-rod sealing formula according to claim 1 vacuumizes shutoff frock, it is characterized in that: the top of described lower seal groove cavity has makes O type circle B by the ramp structure of oblique compression.
4. the tie-rod sealing formula 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.
5. the tie-rod sealing formula 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.
6. the tie-rod sealing formula according to claim 1 or 2 or 3 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.
7. the tie-rod sealing formula according to claim 1 or 2 or 3 vacuumizes shutoff frock, it is characterized in that: described pull bar successively cross-under in upper cap nut, upper press ring, O type circle A, mother nut, O type circle B, lower pressure ring, lower nut and valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520355026.8U CN204729657U (en) | 2015-05-28 | 2015-05-28 | A kind of tie-rod sealing formula vacuumizes shutoff frock |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520355026.8U CN204729657U (en) | 2015-05-28 | 2015-05-28 | A kind of tie-rod sealing formula vacuumizes shutoff frock |
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| CN204729657U true CN204729657U (en) | 2015-10-28 |
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Cited By (1)
| 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 |
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2015
- 2015-05-28 CN CN201520355026.8U patent/CN204729657U/en active Active
Cited By (1)
| 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 |
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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 |