CN203395359U - Automatic replenishing padding structure - Google Patents
Automatic replenishing padding structure Download PDFInfo
- Publication number
- CN203395359U CN203395359U CN201320347876.4U CN201320347876U CN203395359U CN 203395359 U CN203395359 U CN 203395359U CN 201320347876 U CN201320347876 U CN 201320347876U CN 203395359 U CN203395359 U CN 203395359U
- Authority
- CN
- China
- Prior art keywords
- padding
- valve rod
- stuffing box
- box
- pressing plate
- 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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- Details Of Valves (AREA)
- Lift Valve (AREA)
Abstract
The utility model provides an automatic replenishing padding structure, comprising a padding box, a valve rod and a press plate arranged above the padding box and fixedly connected with the padding box; centers of the padding box and the valve rod are coaxial; the press plate downwards presses a stuffing box sleeved outside the valve rod and positioned between the valve rod and the padding box; the automatic replenishing padding structure is characterized in that a first belleville spring, a spring, a second belleville spring, a padding pad, padding and a press cover are sequentially arranged in the stuffing box from bottom to top; the press plate downwards presses the press cover. The automatic replenishing padding structure is suitable for universal adjusting valves, minimum flow valves, temperature-reducing water adjusting valves, blowoff valves and the like; whole sealing is formed between the padding and the valve rod; when the padding is compressed for a long term and the sealing effect between the padding and the valve rod is reduced, the spring and the belleville springs recover the deformation to push the padding, so the sealing effect between the padding and the valve rod is still good and the self sealing effect can be performed without adjusting a press plate bolt.
Description
Technical field
The utility model relates to mechanical equipment technical field, is specifically related to a kind of automatic supplement type filling-material structure.
Background technique
The packing seal of valve is as shown in Figure 1 to guarantee that the significant points of seepage does not occur valve in running, but after valve is used for a long time, between filler, easily produce gap, cause sealability bad and produce to reveal, so existing structure as shown in Figure 1, pressing plate and gland upper and lower sleeve are located at outside valve rod, pressing plate compresses filler by gland, double-screw bolt is passed down through the pressing plate stepping of going forward side by side and enters Stuffing box, and by nut, pressing plate is fixedly connected with Stuffing box, thereby filler is pressed in Stuffing box, need in use for some time fastening nut to seal completely to guarantee filler, also there is existing structure processing trouble and complicated problem is installed.
Summary of the invention
The utility model completes in order to solve deficiency of the prior art, the purpose of this utility model is to provide a kind of simple in structure, the automatic supplement type filling-material structure of valve easy to assembly, reach by carry out the object of compressible filler from pretightening force, do not occur to leak guaranteeing, long-time normal use that guarantees valve, increases the service life.
The technical solution of the utility model is:
A kind of automatic supplement type filling-material structure, the pressing plate that comprises the coaxial Stuffing box in center, valve rod and be positioned at Stuffing box top and be fixedly connected with Stuffing box, the downward clamping sleeve of pressing plate is located at outside described valve rod, the stuffing box between described valve rod and described Stuffing box, it is characterized in that: in stuffing box, set gradually the first butterfly spring, spring, the second butterfly spring, Packing seat, filler and gland from bottom to top; Described pressing plate compresses gland downwards.
Further, the technical solution of the utility model can also be:
Described pressing plate is fixedly connected with described Stuffing box by bolt.
Described bolt is through described pressing plate and further screw in described Stuffing box, and described pressing plate top is provided with nut, and described nut and described bolton, make described pressing plate be fixedly connected with described Stuffing box.
Automatic supplement type filling-material structure of the present utility model is applicable to general modulating valve, minimum flow valve, Desuperheating water regulating valve and blowdown valve etc., forms complete sealing between filler and valve rod.Compressed for a long time when filler, when the sealing effect between filler and valve rod reduces, due to spring and butterfly spring recovery deformation, promote filler, make the sealing effect between filler and valve rod still good, need not regulate follower bolt, can play selfsealings effect.
Accompanying drawing explanation
Fig. 1 is the structural representation of the filler hold-down mechanism of prior art.
Fig. 2 is the structural representation of automatic supplement type filling-material structure of the present utility model.
Description of reference numerals
1, Stuffing box 2, valve rod 3, pressing plate 4, the first butterfly spring 5, spring 6, the second butterfly spring 7, Packing seat 8, filler 9, gland 10, bolt 11, nut
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
A kind of automatic supplement type filling-material structure as shown in Figure 2, the pressing plate 3 that comprises the coaxial Stuffing box in center 1, valve rod 2 and be positioned at Stuffing box top and be fixedly connected with Stuffing box, the downward clamping sleeve of pressing plate is located at outside valve rod, the stuffing box between valve rod and Stuffing box, it is characterized in that: in stuffing box, set gradually the first butterfly spring 4, spring 5, the second butterfly spring 6, Packing seat 7, filler 8 and gland 9 from bottom to top; Pressing plate compresses gland downwards.
In this example, pressing plate is fixedly connected with Stuffing box by bolt 10.Specifically, bolt is through pressing plate and further screw in Stuffing box, and pressing plate top is provided with nut 11, and nut and bolton, make pressing plate be fixedly connected with Stuffing box.
Working principle of the present utility model is:
During nut on screwing pressing plate, the first butterfly spring, spring, the second butterfly spring and filler are together compressed, until form complete sealing between filler and valve rod.When filler compressed for a long time, when sealing effect between filler and valve rod reduces, because spring and the first butterfly spring, the second butterfly spring butterfly are recovered deformation, promote filler, make the sealing effect between filler and valve rod still good, need not regulate follower bolt, play selfsealings effect.
Above-mentionedly only several specific embodiments in the utility model are illustrated; but can not be as protection domain of the present utility model; every equivalence of having done according to the design spirit in the utility model changes or modifies, and all should think and fall into protection domain of the present utility model.
Claims (3)
1. an automatic supplement type filling-material structure, the pressing plate that comprises the coaxial Stuffing box in center, valve rod and be positioned at Stuffing box top and be fixedly connected with Stuffing box, the downward clamping sleeve of pressing plate is located at outside described valve rod, the stuffing box between described valve rod and described Stuffing box, it is characterized in that: in stuffing box, set gradually the first butterfly spring, spring, the second butterfly spring, Packing seat, filler and gland from bottom to top; Described pressing plate compresses gland downwards.
2. a kind of automatic supplement type filling-material structure according to claim 1, is characterized in that: described pressing plate is fixedly connected with described Stuffing box by bolt.
3. a kind of automatic supplement type filling-material structure according to claim 2, is characterized in that: described bolt is through described pressing plate and further screw in described Stuffing box, and described pressing plate top is provided with nut, described nut and described bolton.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320347876.4U CN203395359U (en) | 2013-06-18 | 2013-06-18 | Automatic replenishing padding structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320347876.4U CN203395359U (en) | 2013-06-18 | 2013-06-18 | Automatic replenishing padding structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203395359U true CN203395359U (en) | 2014-01-15 |
Family
ID=49906892
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320347876.4U Expired - Fee Related CN203395359U (en) | 2013-06-18 | 2013-06-18 | Automatic replenishing padding structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203395359U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110206506A (en) * | 2019-06-10 | 2019-09-06 | 湖南达道新能源开发有限公司 | A kind of geothermal drilling well head cover board |
-
2013
- 2013-06-18 CN CN201320347876.4U patent/CN203395359U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110206506A (en) * | 2019-06-10 | 2019-09-06 | 湖南达道新能源开发有限公司 | A kind of geothermal drilling well head cover board |
| CN110206506B (en) * | 2019-06-10 | 2021-09-28 | 湖南达道新能源开发有限公司 | Wellhead cover plate for geothermal drilling |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 215000 Suzhou Lake Industrial Park, Xiangcheng District Economic Development Zone, Jiangsu Patentee after: SUZHOU DELAN ENERGY SCIENCE & TECHNOLOGY CORP., LTD. Address before: Cao Hu Industrial Park of Xiangcheng Economic Development Zone, Suzhou City, Jiangsu province 215000 Patentee before: Suzhou Delan Energy Technology Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140115 Termination date: 20150618 |
|
| EXPY | Termination of patent right or utility model |