CN202597716U - Stop valve structure - Google Patents
Stop valve structure Download PDFInfo
- Publication number
- CN202597716U CN202597716U CN 201220154076 CN201220154076U CN202597716U CN 202597716 U CN202597716 U CN 202597716U CN 201220154076 CN201220154076 CN 201220154076 CN 201220154076 U CN201220154076 U CN 201220154076U CN 202597716 U CN202597716 U CN 202597716U
- Authority
- CN
- China
- Prior art keywords
- valve
- flap
- clack
- valve rod
- packing
- 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 stop valve structure, which comprises a valve body, a large valve clack, a small valve clack, a valve rod, a hand wheel, a valve rod nut, a valve clack cover and the like. The stop valve structure is characterized in that the valve rod is fixedly arranged at the central position of the hand wheel through a locking nut; the valve rod nut is arranged at the lower end of the hand wheel; a packing pressure plate is arranged on the middle part of the valve rod; a packing bushing is arranged at the lower end of the packing pressure plate; a packing box is arranged at the lower end of the packing bushing; when the stop valve structure is arranged, the packing pressure plate and the packing bushing are required to be kept concentric with the valve rod; a valve cover is arranged outside the packing box; a gasket is additionally arranged between the valve cover and the valve body, and the valve cover and the valve body are fixedly connected through a stud and a nut; the large valve clack and the small valve clack are arranged in a body cavity of the valve body; the small valve clack is fixedly connected with the bottom of the valve rod; a ceramic sealing ring A is arranged at the lower end of the small valve clack; the large valve clack is arranged outside the small valve clack; a ceramic sealing ring B is arranged at the lower end of the large valve clack; and the valve clack cover is arranged at the upper end of the large valve clack. The service life of the valve can be prolonged, the safety and stability of a matched equipment running system can be improved, and maintenance cost is saved.
Description
Technical field
The utility model belongs to valve and makes the field, especially relates to a kind of stop valve structure.
Background technique
At present, the valve that generally uses receives the restriction of material, structure, can not adapt to the demand of bad working environments such as increasingly high wearing and tearing, deep-etching, is mainly reflected in the weak point in working life, reveals the stability that has seriously influenced system's operation greatly.Traditional valve is badly in need of reforming completely from aspects such as material, structure and manufacturing process.
The model utility content
The purpose of the utility model provides a kind of corrosion-resistant, wear-resistant performance of flushing that has improved valve; Prolong the working life of valve, improve Security, the stability of corollary equipment operational system, be convenient to the dismounting maintenance; Practiced thrift maintenance cost, the stop valve structure of good economy performance.
The technological scheme of the utility model is: a kind of stop valve structure, comprise valve body, big valve flap, little flap, valve rod, handwheel, Stem Mut, flap lid etc., and it is characterized in that: valve rod top is provided with handwheel; Valve rod is fixedly installed in the handwheel central position through locking nut, and the handwheel lower end is equipped with Stem Mut, and the valve rod middle part is provided with hold-down grid; The hold-down grid lower end is provided with the filler gland, and filler gland lower end is provided with stuffing box, during installation; Hold-down grid, filler gland will keep concentric with valve rod, and the stuffing box outside is provided with valve gap, and shimming is fixedly connected with nut through stud between valve gap and the valve body; Be provided with big valve flap and little flap in the valve body body cavity; Little flap is fixedly connected with stem bottom, and little flap lower end is provided with ceramic seal circle A, and little flap outside is provided with big valve flap; The big valve flap lower end is provided with ceramic seal circle B, and the big valve flap upper end is installed with the flap lid.
Advantage and the good effect that the utlity model has are: corrosion-resistant, the wear-resistant performance of flushing that has improved valve; Prolong the working life of valve, improve Security, the stability of corollary equipment operational system, be convenient to the dismounting maintenance; Practiced thrift maintenance cost, good economy performance.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Among the figure:
1, valve body 2, big valve flap 3, little flap 4, valve rod
5, flap lid 6, pad 7, nut 8, stud
9, valve gap 10, stuffing box 11, filler gland 12, hold-down grid
13, Stem Mut 14, handwheel 15, locking nut 16, ceramic seal circle A
17, ceramic seal circle B
Embodiment
Preferred embodiment in the face of the utility model is elaborated down.
As shown in Figure 1, the utility model provides a kind of stop valve structure, comprises valve body 1, big valve flap 2, little flap 3, valve rod 4, handwheel 14, Stem Mut 13, flap lid 5 etc.; It is characterized in that: valve rod 4 tops are provided with handwheel 14, and valve rod 4 is fixedly installed in handwheel 14 central positions through locking nut 15, and handwheel 14 lower ends are equipped with Stem Mut 13; Valve rod 4 middle parts are provided with hold-down grid 12, and hold-down grid 12 lower ends are provided with filler gland 11, and filler gland 11 lower ends are provided with stuffing box 10; During installation, hold-down grid 12, filler gland 11 will keep concentric with valve rod 4, and stuffing box 10 outsides are provided with valve gap 9; Shimming 6 is fixedly connected with nut 7 through stud 8 between valve gap 9 and the valve body 1, is provided with big valve flap 2 and little flap 3 in valve body 1 body cavity, and little flap 3 is fixedly connected with valve rod 4 bottoms; Little flap 3 lower ends are provided with ceramic seal circle A16; Little flap 3 outsides are provided with big valve flap 2, and big valve flap 2 lower ends are provided with ceramic seal circle B17, and big valve flap 2 upper ends are installed with flap lid 5.
The utility model has improved corrosion-resistant, the wear-resistant performance of flushing of valve, prolongs the working life of valve, improves Security, the stability of corollary equipment operational system, is convenient to the dismounting maintenance, has practiced thrift maintenance cost, good economy performance.
More than the embodiment of the utility model is specified, but said content is merely the preferred embodiment of the utility model, can not be considered to be used to limit the practical range of the utility model.All equalizations of doing according to the utility model application range change and improve etc., all should still belong within the patent covering scope of the utility model.
Claims (1)
1. a stop valve structure comprises valve body, big valve flap, little flap, valve rod, handwheel, Stem Mut, flap lid etc., and it is characterized in that: valve rod top is provided with handwheel; Valve rod is fixedly installed in the handwheel central position through locking nut, and the handwheel lower end is equipped with Stem Mut, and the valve rod middle part is provided with hold-down grid; The hold-down grid lower end is provided with the filler gland, and filler gland lower end is provided with stuffing box, during installation; Hold-down grid, filler gland will keep concentric with valve rod, and the stuffing box outside is provided with valve gap, and shimming is fixedly connected with nut through stud between valve gap and the valve body; Be provided with big valve flap and little flap in the valve body body cavity; Little flap is fixedly connected with stem bottom, and little flap lower end is provided with ceramic seal circle A, is provided with big valve flap in the endoceliac little flap of valve body outside; The big valve flap lower end is provided with ceramic seal circle B, and the big valve flap upper end is installed with the flap lid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220154076 CN202597716U (en) | 2012-04-09 | 2012-04-09 | Stop valve structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220154076 CN202597716U (en) | 2012-04-09 | 2012-04-09 | Stop valve structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202597716U true CN202597716U (en) | 2012-12-12 |
Family
ID=47315255
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220154076 Expired - Fee Related CN202597716U (en) | 2012-04-09 | 2012-04-09 | Stop valve structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202597716U (en) |
-
2012
- 2012-04-09 CN CN 201220154076 patent/CN202597716U/en not_active Expired - Fee Related
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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: 20121212 Termination date: 20140409 |