CN202646900U - Valve rod sealing device - Google Patents
Valve rod sealing device Download PDFInfo
- Publication number
- CN202646900U CN202646900U CN 201220146336 CN201220146336U CN202646900U CN 202646900 U CN202646900 U CN 202646900U CN 201220146336 CN201220146336 CN 201220146336 CN 201220146336 U CN201220146336 U CN 201220146336U CN 202646900 U CN202646900 U CN 202646900U
- Authority
- CN
- China
- Prior art keywords
- valve rod
- sealing
- valve body
- valve
- sealing ring
- 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 a valve rod sealing device which comprises a valve body, a valve rod, a sealing ring and a sealing gland, wherein the valve rod is arranged in the valve body, the sealing ring is arranged between the valve body and the valve rod, the sealing gland is arranged outside the valve body, the sealing gland is in contact with the sealing ring, the sealing ring is an X type sealing ring, the sealing gland is connected with the valve body through a fastening member, and the fastening member is a compression screw. According to the valve rod sealing device provided by the utility model, because of large deformation of the X type sealing ring, even if the assembly magnitude of interference of the sealing gland is large, the X type sealing ring is less prone to be damaged, and the sealing property is less prone to fail; and when a valve is switched on or off, a medium ensures that the valve rod inclines, the inner lip and the outer lip of the X type sealing ring cling to the valve rod and the valve body, thus the sealing property is reliable and the leakage can not be caused easily.
Description
Technical field
The utility model relates to a kind of seal arrangement, particularly be a kind of valve rod sealing device.
Background technique
Valve is in fluid system, is used for controlling direction, the pressure of fluid, the device of flow.Valve is the device that pipe arrangement and the interior medium (liquid, gas, powder) of equipment is flowed or stop and controlling its flow, it is controlling component in the pipeline fluid transporting system, it is to change path section and media flow direction, has the functions such as water conservancy diversion, cut-off, throttling, non-return, shunting or overflow release.The valve rod sealing device of general valve, as shown in Figure 1, comprise valve body 1, valve rod 2, O RunddichtringO 3 and sealing gland 4, be provided with valve rod 2 in the described valve body 1,2 of described valve body 1 and valve rods are provided with O RunddichtringO 3, be provided with sealing gland 4 outside the described valve body 1, described sealing gland 4 contacts with O RunddichtringO 3.Such valve rod sealing device at first is inserted in O RunddichtringO 3 when mounted, then sealing gland 4 is being installed, be used for to compress O RunddichtringO 3, because the amount of deformation of O RunddichtringO 3 is less, when the assembling magnitude of interference of sealing gland 4 is large, damage easily O RunddichtringO 3 by pressure, so that sealability lost efficacy; And certain interval is arranged between valve rod and the valve body, and during valve switch, the medium meeting is so that valve rod tilts, and the sealability of O RunddichtringO 3 can not be guaranteed at this moment, causes leaking.
The model utility content
The utility model purpose is to provide a kind of sealability the reliable and difficult valve rod sealing device that lost efficacy in order to overcome the deficiencies in the prior art.
For achieving the above object, the technical solution adopted in the utility model is: a kind of valve rod sealing device, comprise valve body, valve rod, seal ring and sealing gland, be provided with valve rod in the described valve body, be provided with seal ring between described valve body and valve rod, described valve body is provided with sealing gland outward, and described sealing gland contacts with seal ring, and described seal ring is X-shaped sealing ring.
Preferably, described sealing gland links to each other with valve body by fastening piece.
Preferably, described fastening piece is housing screw.
Because the utilization of technique scheme, the utility model compared with prior art has following advantages:
Valve rod sealing device of the present utility model, because seal ring is X-shaped sealing ring, the amount of deformation of X-shaped sealing ring is large, even when the assembling magnitude of interference of sealing gland is large, also not fragile X-shaped sealing ring, sealability is difficult for losing efficacy; When valve switch, medium is so that after the valve rod inclination, lip, outer lip still can be close to valve rod and valve body in the X-shaped sealing ring, and sealability is reliable, is difficult for causing leakage.
Description of drawings
Below in conjunction with accompanying drawing technical solutions of the utility model are described further:
Accompanying drawing 1 is the structural representation of the valve rod sealing device of prior art;
Accompanying drawing 2 is the structural representation of valve rod sealing device of the present utility model;
Wherein: 1, valve body; 2, valve rod; 3, O RunddichtringO; 4, sealing gland; 5, housing screw; 6, X-shaped sealing ring.
Embodiment
The utility model is described in further detail below in conjunction with drawings and the specific embodiments.
Described in the utility model a kind of valve rod sealing device as shown in Figure 2, comprise valve body 1, valve rod 2, seal ring and sealing gland 4, be provided with valve rod 2 in the described valve body 1,2 of described valve body 1 and valve rods are provided with seal ring, the described valve body 1 outer sealing gland 4 that is provided with, described sealing pressing 4 lids link to each other with valve body 1 by housing screw 5; Described sealing gland 4 contacts with seal ring, and described seal ring is X-shaped sealing ring 6.
During installation, at first be inserted in X-shaped sealing ring 6, then by housing screw 5 sealing gland 4 is connected with valve body 1, be used for compressing X-shaped sealing ring 6, because the amount of deformation of X-shaped sealing ring 6 is large, when even the assembling magnitude of interference of sealing gland 4 is large, also not fragile X-shaped sealing ring 6, sealability is difficult for losing efficacy; During valve switch, medium is so that valve rod 2 tilts, and lip, outer lip still can be close to valve rod 2 and valve body 1 in the X-shaped sealing ring 6, and sealability is reliable, is difficult for causing leakage.
Below only be concrete exemplary applications of the present utility model, protection domain of the present utility model is not constituted any limitation.All employing equivalents or equivalence are replaced and the technological scheme of formation, all drop within the utility model rights protection scope.
Claims (3)
1. valve rod sealing device, comprise valve body, valve rod, seal ring and sealing gland, be provided with valve rod in the described valve body, be provided with seal ring between described valve body and valve rod, described valve body is provided with sealing gland outward, described sealing gland contacts with seal ring, it is characterized in that: described seal ring is X-shaped sealing ring.
2. valve rod sealing device according to claim 1, it is characterized in that: described sealing gland links to each other with valve body by fastening piece.
3. valve rod sealing device according to claim 2, it is characterized in that: described fastening piece is housing screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220146336 CN202646900U (en) | 2012-04-10 | 2012-04-10 | Valve rod sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220146336 CN202646900U (en) | 2012-04-10 | 2012-04-10 | Valve rod sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202646900U true CN202646900U (en) | 2013-01-02 |
Family
ID=47416008
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220146336 Expired - Fee Related CN202646900U (en) | 2012-04-10 | 2012-04-10 | Valve rod sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202646900U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019019479A1 (en) * | 2017-07-28 | 2019-01-31 | 广船国际有限公司 | Hydraulic control pipe penetrating part of remote control valve |
-
2012
- 2012-04-10 CN CN 201220146336 patent/CN202646900U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019019479A1 (en) * | 2017-07-28 | 2019-01-31 | 广船国际有限公司 | Hydraulic control pipe penetrating part of remote control valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130102 Termination date: 20130410 |