CN202451958U - Filler pre-tightening mechanism of valve - Google Patents
Filler pre-tightening mechanism of valve Download PDFInfo
- Publication number
- CN202451958U CN202451958U CN 201120565296 CN201120565296U CN202451958U CN 202451958 U CN202451958 U CN 202451958U CN 201120565296 CN201120565296 CN 201120565296 CN 201120565296 U CN201120565296 U CN 201120565296U CN 202451958 U CN202451958 U CN 202451958U
- Authority
- CN
- China
- Prior art keywords
- filler
- pressing plate
- stuffing box
- box
- valve
- 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 provides a filler pre-tightening mechanism of a valve. The mechanism comprises a filler box, a valve body and a pressing plate, wherein the center of the filler box and the center of the valve rod are located in the same axle, the pressing plate is located on the upper portion of the filler box and connected with the filler box fixedly, the pressing plate presses a pressing sleeve tightly downwards, the pressing sleeve presses the filler box tightly downwards, the valve rod penetrates through the pressing plate, the pressing sleeve and the filler box sequentially from top to bottom, a filler sealing layer and a filler pad are arranged in the filler box from top to bottom, a spring is arranged in the filler sealing layer, and the filler sealing layer is divided into an upper filler sealing layer and a lower filler sealing layer by the spring. According to the mechanism, a bolt penetrates through the pressing plate and is further screwed into the filler box, a nut is arranged on the upper portion of the pressing plate, the screw and the nut are fixed tightly, the pressing plate and the filler box are connected fixedly, the spring is arranged in the filler so as to provide thrust to compress the filler, leakage due to poor sealing performance caused by gaps in the filler after long-time usage of the filler is avoided.
Description
Technical field
The utility model relates to mechanical equipment technical field, is specifically related to a kind of filler pre-tightening mechanism of valve.
Background technique
Guarantee during the packing seal of valve as shown in Figure 1 that the significant points of seepage does not take place valve in running; But after valve is by long-time the use; Be easy to generate the gap between the filler; Cause sealability bad and produce to reveal, therefore existing structure as shown in the figure needs fastening nut to seal fully to guarantee filler in use for some time.
Summary of the invention
The utility model is accomplished in order to solve deficiency of the prior art; The purpose of the utility model provides a kind of simple in structure; The filler pre-tightening mechanism of valve easy to assembly reaches by the purpose of coming compressible filler from pretightening force, does not take place to leak guaranteeing; Guarantee long-time normal use of valve, increase the service life.
The technological scheme of the utility model is:
A kind of filler pre-tightening mechanism of valve; The pressing plate that comprises the coaxial Stuffing box in center, valve rod and be positioned at the Stuffing box top and be fixedly connected with Stuffing box, pressing plate compresses gland downwards, and gland compresses Stuffing box downwards; Valve rod passes pressing plate, gland and Stuffing box from top to bottom successively; Be packing seal layer and Packing seat in the Stuffing box from top to bottom, add spring in the packing seal layer, spring is divided into the packing seal layer goes up packing seal layer and following packing seal layer.In this example, bolt passes pressing plate and further screws in Stuffing box, and the pressing plate top is provided with nut, and nut and bolton make pressing plate be fixedly connected with Stuffing box.
Further,
Bolt passes said pressing plate and further screws in said Stuffing box, and the pressing plate top is provided with nut, and said nut and said bolton make said pressing plate be fixedly connected with said Stuffing box, and it is fastening to add the dish spring between said nut and the said pressing plate.
The filler pre-tightening mechanism of the valve of the utility model provides thrust to compress filler through adding spring in the middle of the filler, avoids producing the gap between the filler of filler long back service time and causes the bad generation of sealability to be revealed.In addition, in the middle of nut and pressing plate, add the dish spring and further strengthened function again, guarantee filler good sealing effect for a long time from pretension.
Description of drawings
Fig. 1 is the structural representation of the filling body of existing technology.
Fig. 2 is embodiment 1 the structural representation of filler pre-tightening mechanism of the valve of the utility model.
Fig. 3 is embodiment 2 the structural representation of filler pre-tightening mechanism of the valve of the utility model.
Description of reference numerals
1... Stuffing box 2... valve rod 3... pressing plate 4... gland 5... packing seal layer
6... Packing seat 7... spring 8... bolt 9... nut 10... dish spring
Embodiment
Below in conjunction with accompanying drawing the utility model is done further explain.
Embodiment 1
The filler pre-tightening mechanism of the valve that as shown in Figure 2 this is routine; Comprise the coaxial Stuffing box in center 1, valve rod 2 and the pressing plate 3 that is positioned at Stuffing box 1 top and is fixedly connected with Stuffing box 1; Pressing plate 3 compresses gland 4 downwards; Gland 4 compresses Stuffing box downwards, and valve rod 2 passes pressing plate 3, gland 4 and Stuffing box 1 from top to bottom successively, is packing seal layer 5 and Packing seat 6 in the Stuffing box from top to bottom; Add spring 7 in the packing seal layer 5, spring 7 is divided into the packing seal layer goes up packing seal layer and following packing seal layer.In this example, bolt 8 passes pressing plate and further screws in Stuffing box, and the pressing plate top is provided with nut 9, and nut and bolton make pressing plate be fixedly connected with Stuffing box.
When the loosening generation of filler gap, come compressible filler by what the spring in the middle of the filler provided from pretightening force, to reach the purpose of sealing fully.
This example as shown in Figure 3 and embodiment's 1 difference is: it is fastening to add dish spring 10 between nut 9 and the pressing plate.
When the loosening generation of filler gap, come compressible filler by what the dish spring in the middle of the spring in the middle of the filler or nut and the pressing plate provided from pretightening force, to reach the purpose of sealing fully, its sealing effect is better.
Above-mentionedly only several kinds of specific embodiments in the utility model are explained; But can not be as the protection domain of the utility model; Every equivalence of having done according to the design spirit in the utility model changes or modifies, and all should think the protection domain that falls into the utility model.
Claims (2)
1. the filler pre-tightening mechanism of a valve; The pressing plate that comprises the coaxial Stuffing box in center, valve rod and be positioned at the Stuffing box top and be fixedly connected with Stuffing box, pressing plate compresses gland downwards, and gland compresses Stuffing box downwards; Valve rod passes pressing plate, gland and Stuffing box from top to bottom successively; Be packing seal layer and Packing seat in the Stuffing box from top to bottom, add spring in the packing seal layer, spring is divided into the packing seal layer goes up packing seal layer and following packing seal layer; Bolt passes pressing plate and further screws in Stuffing box, and the pressing plate top is provided with nut, and nut and bolton make pressing plate be fixedly connected with Stuffing box.
2. the filler pre-tightening mechanism of a kind of valve according to claim 1 is characterized in that: it is fastening to add the dish spring between said nut and the said pressing plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120565296 CN202451958U (en) | 2011-12-30 | 2011-12-30 | Filler pre-tightening mechanism of valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120565296 CN202451958U (en) | 2011-12-30 | 2011-12-30 | Filler pre-tightening mechanism of valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202451958U true CN202451958U (en) | 2012-09-26 |
Family
ID=46867823
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120565296 Expired - Fee Related CN202451958U (en) | 2011-12-30 | 2011-12-30 | Filler pre-tightening mechanism of valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202451958U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108223899A (en) * | 2018-01-12 | 2018-06-29 | 江苏远洋阀门智控股份有限公司 | A kind of valve rod angle floating sealing structure |
| CN110388503A (en) * | 2018-04-17 | 2019-10-29 | 中石化广州工程有限公司 | The packing seal structure and its application method of valve used in delayed coking unit |
| CN110465791A (en) * | 2019-08-08 | 2019-11-19 | 江苏神通阀门股份有限公司 | A kind of installation method of large bore valves filler |
-
2011
- 2011-12-30 CN CN 201120565296 patent/CN202451958U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108223899A (en) * | 2018-01-12 | 2018-06-29 | 江苏远洋阀门智控股份有限公司 | A kind of valve rod angle floating sealing structure |
| CN110388503A (en) * | 2018-04-17 | 2019-10-29 | 中石化广州工程有限公司 | The packing seal structure and its application method of valve used in delayed coking unit |
| CN110465791A (en) * | 2019-08-08 | 2019-11-19 | 江苏神通阀门股份有限公司 | A kind of installation method of large bore valves filler |
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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: 20120926 Termination date: 20141230 |
|
| EXPY | Termination of patent right or utility model |