CN204284642U - The sealing leakage-proof structure of a kind of valve rod T-shaped upside-down mounting - Google Patents
The sealing leakage-proof structure of a kind of valve rod T-shaped upside-down mounting Download PDFInfo
- Publication number
- CN204284642U CN204284642U CN201420707069.3U CN201420707069U CN204284642U CN 204284642 U CN204284642 U CN 204284642U CN 201420707069 U CN201420707069 U CN 201420707069U CN 204284642 U CN204284642 U CN 204284642U
- Authority
- CN
- China
- Prior art keywords
- valve rod
- valve
- seal ring
- sealing
- spool
- 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 belongs to valve field, be sealing effect difference between the parts that are attached thereto for existing valvular valve rod and the sealing leakage-proof structure of a kind of valve rod T-shaped upside-down mounting that provides, comprise spool, valve seat, upper valve rod, lower valve rod, filling body, valve gap, connection bracket and bottom, valve gap is positioned at and contacts the first seal ring with the lower end surface of upper valve rod joint, lower end upper valve rod being positioned at valve gap has First terrace, first seal ring lower end contacts and form sealing on First terrace, and spool upper end is arranged on the upper valve rod of First terrace lower end; Valve seat is positioned at and contacts the second seal ring with the upper-end surface of lower valve rod joint, lower valve rod has second step face, the second seal ring upper end contacts and form sealing on second step face, and spool lower end is arranged on the lower valve rod of upper end, second step face.Increase vertical sealing structure by between upper valve rod and valve gap and between lower valve rod and valve body, make each valve rod and the sealing effect between valve body and valve gap better, frequency of maintenance is low.
Description
Technical field
The utility model belongs to valve technology field, the sealing leakage-proof structure of particularly a kind of valve rod T-shaped upside-down mounting.
Background technique
Sealing between the valve rod of existing valve and valve gap realizes sealing by stuffing box packing, and the weak effect of this sealing can cause leakage for a long time.
Model utility content
The purpose of this utility model is the sealing leakage-proof structure of a kind of valve rod T-shaped upside-down mounting provided for the sealing effect difference now between valvular valve rod and valve gap, between valve rod and valve body.
The utility model is achieved by the following technical solution:
The sealing leakage-proof structure of a kind of valve rod T-shaped upside-down mounting, comprise spool, valve seat, upper valve rod, lower valve rod, filling body, valve gap, connection bracket and bottom, filling body is provided with between upper valve rod and valve gap, Expanded graphite is provided with between lower valve rod and valve seat, lower valve rod upper end is connected with spool, valve gap is positioned at and contacts the first seal ring with the lower end surface of upper valve rod joint, lower end upper valve rod being positioned at valve gap has First terrace, first seal ring lower end contacts and form sealing on First terrace, and spool upper end is arranged on the upper valve rod of First terrace lower end.
Valve seat is positioned at and contacts the second seal ring with the upper-end surface of lower valve rod joint, lower valve rod has second step face, the second seal ring upper end contacts and form sealing on second step face, and spool lower end is arranged on the lower valve rod of upper end, second step face.
The first described seal ring, the second seal ring are that tetrafluoroethylene material is made.
The beneficial effects of the utility model: the utility model increases vertical sealing structure by between upper valve rod and valve gap and between lower valve rod and valve body, double seal, make each valve rod and the sealing effect between valve body and valve gap better, frequency of maintenance reduces.
Accompanying drawing explanation
Fig. 1 is structure sectional view of the present utility model.
Embodiment
Below in conjunction with embodiment, the utility model is described in further detail.
Embodiment
The sealing leakage-proof structure of a kind of valve rod T-shaped upside-down mounting as shown in Figure 1, comprise spool 1, valve seat 2, upper valve rod 3, lower valve rod 4, filling body 5, valve gap 6, connection bracket 7 and bottom 8, filling body 5 is provided with between upper valve rod 3 and valve gap 6, Expanded graphite is provided with between lower valve rod 4 and valve seat 2, lower valve rod 4 upper end is connected with spool 1, it should be noted that to be positioned on valve gap 6 and contact the first seal ring 9 with the lower end surface of upper valve rod 3 joint, lower end upper valve rod 3 being positioned at valve gap 6 has First terrace, first seal ring 9 lower end contacts and form sealing on First terrace, spool 1 upper end is arranged on the upper valve rod 3 of First terrace lower end.
It should be noted that further to be positioned on valve seat and contact the second seal ring 10 with the upper-end surface of lower valve rod joint, lower valve rod has second step face, second seal ring 10 upper end contacts and form sealing on second step face, and spool lower end is arranged on the lower valve rod of upper end, second step face.The first described seal ring 9, second seal ring 10 is made for tetrafluoroethylene material.
More than show and describe basic principle of the present utility model, major character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and specification just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope, simple change and the replacement of those ordinary skill in the art are all within protection domain of the present utility model.
Claims (3)
1. the sealing leakage-proof structure of valve rod T-shaped upside-down mounting, comprise spool, valve seat, upper valve rod, lower valve rod, filling body, valve gap, connection bracket and bottom, filling body is provided with between upper valve rod and valve gap, Expanded graphite is provided with between lower valve rod and valve seat, lower valve rod upper end is connected with spool, it is characterized in that: be positioned on valve gap and contact the first seal ring with the lower end surface of upper valve rod joint, lower end upper valve rod being positioned at valve gap has First terrace, first seal ring lower end contacts and form sealing on First terrace, spool upper end is arranged on the upper valve rod of First terrace lower end.
2. the sealing leakage-proof structure of a kind of valve rod T-shaped according to claim 1 upside-down mounting, it is characterized in that: be positioned on valve seat and contact the second seal ring with the upper-end surface of lower valve rod joint, lower valve rod has second step face, second seal ring upper end contacts and form sealing on second step face, and spool lower end is arranged on the lower valve rod of upper end, second step face.
3. the sealing leakage-proof structure of a kind of valve rod T-shaped according to claim 2 upside-down mounting, is characterized in that: the first described seal ring, the second seal ring are that tetrafluoroethylene material is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420707069.3U CN204284642U (en) | 2014-11-21 | 2014-11-21 | The sealing leakage-proof structure of a kind of valve rod T-shaped upside-down mounting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420707069.3U CN204284642U (en) | 2014-11-21 | 2014-11-21 | The sealing leakage-proof structure of a kind of valve rod T-shaped upside-down mounting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204284642U true CN204284642U (en) | 2015-04-22 |
Family
ID=52867803
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420707069.3U Expired - Fee Related CN204284642U (en) | 2014-11-21 | 2014-11-21 | The sealing leakage-proof structure of a kind of valve rod T-shaped upside-down mounting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204284642U (en) |
-
2014
- 2014-11-21 CN CN201420707069.3U patent/CN204284642U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150422 Termination date: 20151121 |
|
| EXPY | Termination of patent right or utility model |