CN204477332U - Butterfly valve Mechanical end face bearing means - Google Patents
Butterfly valve Mechanical end face bearing means Download PDFInfo
- Publication number
- CN204477332U CN204477332U CN201520053246.5U CN201520053246U CN204477332U CN 204477332 U CN204477332 U CN 204477332U CN 201520053246 U CN201520053246 U CN 201520053246U CN 204477332 U CN204477332 U CN 204477332U
- Authority
- CN
- China
- Prior art keywords
- seal ring
- outside
- step groove
- medial support
- gland
- 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 relates to butterfly valve technical field, disclose a kind of butterfly valve Mechanical end face bearing means, comprise valve shaft, bearing and pedestal, first step groove and second step groove is provided with in described seat, also comprise the seal ring be located in first step groove, medial support seal ring and outside-supporting seal ring, and the gland be located in second step groove and pressing plate, described seal ring compresses mutually with bearing, described medial support seal ring is sheathed on valve shaft and the inner of medial support seal ring and compresses mutually with seal ring, described outside-supporting seal ring is sheathed on the outside of medial support seal ring and the inner of outside-supporting seal ring compresses mutually with seal ring, cavity is provided with between described medial support seal ring and outside-supporting seal ring, described gland is installed in second step groove, described pressure board is combined between gland and the second snap ring.The utility model has good seal performance and can avoid the advantage of wearing and tearing.
Description
Technical field
The utility model relates to butterfly valve technical field, more particularly, and particularly a kind of butterfly valve Mechanical end face bearing means.
Background technique
Butterfly valve needs the sealability ensureing the bearing be arranged on valve shaft in the course of the work, generally adopts the structure being provided with seal ring in bearing outer end in prior art.But due to valve shaft, its load be subject to is comparatively large when rotated, easily makes seal ring produce larger radial force, accelerates its wearing and tearing, causes bearing premature failure.Therefore, be necessary to design the strong butterfly valve Mechanical end face bearing means of a kind of sealability.
Model utility content
The purpose of this utility model is to provide a kind of good seal performance and can avoids the butterfly valve Mechanical end face bearing means of wearing and tearing.
In order to solve problem set forth above, the technical solution adopted in the utility model is: a kind of butterfly valve Mechanical end face bearing means, comprise valve shaft, bearing and pedestal, first step groove and second step groove is provided with in described seat, described bearing is installed on valve shaft, described bearing is located in first step groove, the two ends of described valve shaft are also provided with the first annular slot and the second annular slot, the first snap ring is provided with in described first annular slot, the second snap ring is provided with in described second annular slot, it also comprises the seal ring be located in first step groove, medial support seal ring and outside-supporting seal ring, and the gland be located in second step groove and pressing plate, described seal ring compresses mutually with bearing, described medial support seal ring is sheathed on valve shaft and the inner of medial support seal ring and compresses mutually with seal ring, described outside-supporting seal ring is sheathed on the outside of medial support seal ring and the inner of outside-supporting seal ring compresses mutually with seal ring, cavity is provided with between described medial support seal ring and outside-supporting seal ring, described gland is installed in second step groove, described pressure board is combined between gland and the second snap ring.
According to a preferred embodiment of the present utility model: the outside of described medial support seal ring is also provided with the first sealing lip and the second sealing lip, and described first sealing lip compresses mutually with gland, and described second sealing lip compresses mutually with seal ring.
Compared with prior art, the beneficial effects of the utility model are: the utility model adopts the three-layer sealed structure of seal ring, medial support seal ring and outside-supporting seal ring, have good seal performance and can avoid the advantage of wearing and tearing.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of butterfly valve Mechanical end face bearing means of the present utility model.
Description of reference numerals: 1, valve shaft, the 2, first annular slot, the 3, first snap ring, 4, bearing, 5, seal ring, 6, pedestal, 7, gland, 8, pressing plate, the 9, second snap ring, 10, the second annular slot, 11, medial support seal ring, the 12, first sealing lip, 13, the second sealing lip, 14, outside-supporting seal ring, 15, first step groove, 16, second step groove.
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described in detail, to make advantage of the present utility model and feature can be easier to be readily appreciated by one skilled in the art, thus more explicit defining is made to protection domain of the present utility model.
Consult shown in Fig. 1, the utility model provides a kind of butterfly valve Mechanical end face bearing means, comprise valve shaft 1, bearing 4 and pedestal 6, first step groove 15 and second step groove 16 is provided with in described pedestal 6, described bearing 4 is installed on valve shaft 1, and described bearing 4 is located in first step groove 15, and the two ends of described valve shaft 1 are also provided with the first annular slot 2 and the second annular slot 10, be provided with the first snap ring 3 in described first annular slot 2, in described second annular slot 10, be provided with the second snap ring 9.
The utility model also comprises the seal ring 5 be located in first step groove 15, medial support seal ring 11 and outside-supporting seal ring 14, and the gland 7 be located in second step groove 16 and pressing plate 8, described seal ring 5 compresses mutually with bearing 4, described medial support seal ring 11 is sheathed on valve shaft 1 and the inner of medial support seal ring 11 and compresses mutually with seal ring 5, described outside-supporting seal ring 14 is sheathed on the outside of medial support seal ring 11 and the inner of outside-supporting seal ring 14 compresses mutually with seal ring 5, cavity is provided with between described medial support seal ring 11 and outside-supporting seal ring 14, described gland 7 is installed in second step groove 16, described pressing plate 8 is fastened between gland 7 and the second snap ring 9.
In the utility model, the outside of described medial support seal ring 11 is also provided with the first sealing lip 12 and the second sealing lip 13, and described first sealing lip 12 compresses mutually with gland 7, and described second sealing lip 13 compresses mutually with seal ring 5.Because the first sealing lip 12, second sealing lip 13 is pressed on seal ring 5 and gland 7 respectively, the axial clearance of sealing can be reduced further, improve sealability, and adopt the three-layer sealed structure of seal ring 5, medial support seal ring 11 and outside-supporting seal ring 14, there is good seal performance and can avoid wear and tear advantage.
Above-described embodiment is the utility model preferably mode of execution; but mode of execution of the present utility model is not restricted to the described embodiments; change, the modification done under other any does not deviate from Spirit Essence of the present utility model and principle, substitute, combine, simplify; all should be the substitute mode of equivalence, be included within protection domain of the present utility model.
Claims (2)
1. a butterfly valve Mechanical end face bearing means, comprise valve shaft, bearing and pedestal, first step groove and second step groove is provided with in described seat, described bearing is installed on valve shaft, described bearing is located in first step groove, the two ends of described valve shaft are also provided with the first annular slot and the second annular slot, the first snap ring is provided with in described first annular slot, the second snap ring is provided with in described second annular slot, it is characterized in that: also comprise the seal ring be located in first step groove, medial support seal ring and outside-supporting seal ring, and the gland be located in second step groove and pressing plate, described seal ring compresses mutually with bearing, described medial support seal ring is sheathed on valve shaft and the inner of medial support seal ring and compresses mutually with seal ring, described outside-supporting seal ring is sheathed on the outside of medial support seal ring and the inner of outside-supporting seal ring compresses mutually with seal ring, cavity is provided with between described medial support seal ring and outside-supporting seal ring, described gland is installed in second step groove, described pressure board is combined between gland and the second snap ring.
2. butterfly valve Mechanical end face bearing means according to claim 1, it is characterized in that: the outside of described medial support seal ring is also provided with the first sealing lip and the second sealing lip, described first sealing lip compresses mutually with gland, and described second sealing lip compresses mutually with seal ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520053246.5U CN204477332U (en) | 2015-01-26 | 2015-01-26 | Butterfly valve Mechanical end face bearing means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520053246.5U CN204477332U (en) | 2015-01-26 | 2015-01-26 | Butterfly valve Mechanical end face bearing means |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204477332U true CN204477332U (en) | 2015-07-15 |
Family
ID=53633125
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520053246.5U Expired - Fee Related CN204477332U (en) | 2015-01-26 | 2015-01-26 | Butterfly valve Mechanical end face bearing means |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204477332U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109307101A (en) * | 2018-12-11 | 2019-02-05 | 南通亚威机械制造有限公司 | A kind of sealing structure with pressure valve |
| CN109357074A (en) * | 2018-12-11 | 2019-02-19 | 南通亚威机械制造有限公司 | A kind of sealing structure of powder valve with pressure |
| CN109611560A (en) * | 2018-12-11 | 2019-04-12 | 南通亚威机械制造有限公司 | A kind of sealing structure of shaft end |
-
2015
- 2015-01-26 CN CN201520053246.5U patent/CN204477332U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109307101A (en) * | 2018-12-11 | 2019-02-05 | 南通亚威机械制造有限公司 | A kind of sealing structure with pressure valve |
| CN109357074A (en) * | 2018-12-11 | 2019-02-19 | 南通亚威机械制造有限公司 | A kind of sealing structure of powder valve with pressure |
| CN109611560A (en) * | 2018-12-11 | 2019-04-12 | 南通亚威机械制造有限公司 | A kind of sealing structure of shaft end |
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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: 20150715 Termination date: 20180126 |