CN202327261U - Stopping and throttling check valve - Google Patents
Stopping and throttling check valve Download PDFInfo
- Publication number
- CN202327261U CN202327261U CN2011204703243U CN201120470324U CN202327261U CN 202327261 U CN202327261 U CN 202327261U CN 2011204703243 U CN2011204703243 U CN 2011204703243U CN 201120470324 U CN201120470324 U CN 201120470324U CN 202327261 U CN202327261 U CN 202327261U
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- CN
- China
- Prior art keywords
- valve
- filling
- filler
- cavity
- valve rod
- 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 discloses a stopping and throttling check valve, which comprises a valve body, a valve cover, a valve rod, a valve flap, a bracket, a valve rod driving mechanism and a filling, wherein an inlet cavity and an outlet cavity are formed on the valve body; a communicating port is formed between the inlet cavity and the outlet cavity; a valve seat adapting to the valve flap in a sealing manner is arranged on the communicating port; a filling cavity is formed on the side of the valve cover, which is opposite to the valve rod; the filling and a filling pressing sleeve are sequentially arranged on the filling cavity from inside to outside; a filling pressing plate fixed on the bracket is arranged outside the filling pressing sleeve in a limiting manner; and a plurality of relatively stacked dish-shaped springs are arranged between the filling pressing plate and the filling pressing sleeve. The stopping and throttling check valve has the advantages of high sealing property and long service life.
Description
Technical field
The utility model relates to a kind of safety check, specifically is meant a kind of cutting-off, throttling and checking valve that has stop valve, modulating valve and safety check function.
Background technique
Safety check is claimed one-way valve or check valve again, belongs to the category of safety check, and safety check is used for pipe-line system, leans on the power of the mobile generation of pipeline medium itself to realize opening and closing automatically, and belongs to a kind of automatic valve.In the existing technology,, check valve design is become to have simultaneously the function of stop valve and throttle valve in order to realize multi-purpose valve; It is the cutting-off, throttling and checking valve; But the defective that existing this cutting-off, throttling and checking valve exists is: along with the increase of valve opening and closing number of times, and the filler wearing and tearing, the gap increases gradually; Cause the sealing between valve rod and the valve gap to descend, working life is shorter.
Summary of the invention
The purpose of the utility model is in order to overcome the shortcoming and defect that existing technology exists, and the cutting-off, throttling and checking valve of a kind of good airproof performance, long service life is provided.
For realizing above-mentioned purpose; The technological scheme of the utility model is to include valve body, valve gap, valve rod, flap, support, valve rod driving mechanism and filler; Said valve body is provided with snout cavity and outlet plenum, is provided with connecting port between snout cavity and the outlet plenum, is provided with on this connecting port and the adaptive valve seat of flap sealing; The avris of the relative valve rod of described valve gap is provided with packing cavity; This packing cavity is disposed with filler and filler gland from inside to outside, and the outer spacing hold-down grid that is fixed on the support that is provided with of said filler gland is provided with the belleville spring that multi-disc is piled up relatively between described hold-down grid and the filler gland.
Further be provided with is that said valve rod is arranged with two ends outward and acts on the Returnning spring that is connected on valve gap lower wall and the flap respectively.This is provided with the reaction velocity that improves valve.
Further being provided with is that the interior filler of described packing cavity includes two sections, and is provided with spacer ring between these two sections fillers.This setting helps to improve the sealing of valve rod.
The utility model has the advantages that through belleville spring is set; When the increase of valve along with the keying number of times, the filler wearing and tearing, the gap increases gradually; Under the effect of the spring force of belleville spring, just can compress filler again and reach sealing, have the advantage of good airproof performance, long service life.
Below in conjunction with Figure of description and embodiment the utility model is done further introduction.
Description of drawings
Fig. 1 the utility model embodiment structural representation.
Embodiment
The embodiment of the utility model as shown in Figure 1; Include valve body 1, valve gap 2, valve rod 3, flap 4, support 5, valve rod driving mechanism 6 and filler 7; The described valve rod driving mechanism 6 of present embodiment adopts mechanisms such as handwheel and Stem Mut to cooperate with valve rod; Constitute the elevating movement of handwheel rotating drive valve rod; Said valve body is provided with snout cavity 11 and outlet plenum 12, is provided with connecting port 13 between snout cavity 11 and the outlet plenum 12, is provided with on this connecting port 13 and the adaptive valve seat 8 of flap sealing; The avris of described valve gap 2 relative valve rods 3 is provided with packing cavity 21; This packing cavity 21 is disposed with filler 7 and filler gland 71 from inside to outside, and the said filler gland 71 outer spacing hold-down grids 72 that are fixed on the support that are provided with are provided with the belleville spring 9 that multi-disc is piled up relatively between described hold-down grid 72 and the filler gland 71.
In addition, be arranged with two ends outside the said valve rod 3 of present embodiment and act on the Returnning spring 31 that is connected on valve gap lower wall and the flap respectively, improve the reaction velocity of valve.
In addition; Filler 7 in the described packing cavity 21 of present embodiment includes two sections; And be provided with spacer ring 73 between these two sections fillers, the filler in the packing cavity adopts high tensile flexible graphite folder nickel wire bulking filler and alloy nickel wire net to coat improvement metal polytetrafluoroethylene packing and the stack mounting of fat envelope ring; And, improve the sealing between filler and valve rod at filler and fat envelope interannular injection high vacuum seal silicone grease.And can reduce the factor that influences regulatory function.
The foregoing description is to the specific descriptions of the utility model; Only be used for the utility model is further specified; Can not be interpreted as the qualification to the utility model protection domain, the technician of related domain according to the content of above-mentioned model utility the utility model is made some nonessential improvement and adjustment all falls within the protection domain of the utility model.
Claims (3)
1. cutting-off, throttling and checking valve; Include valve body, valve gap, valve rod, flap, support, valve rod driving mechanism and filler; Said valve body is provided with snout cavity and outlet plenum, is provided with connecting port between snout cavity and the outlet plenum, is provided with on this connecting port and the adaptive valve seat of flap sealing; The avris of the relative valve rod of described valve gap is provided with packing cavity; This packing cavity is disposed with filler and filler gland from inside to outside, and the outer spacing hold-down grid that is fixed on the support that is provided with of said filler gland is characterized in that: be provided with the belleville spring that multi-disc is piled up relatively between described hold-down grid and the filler gland.
2. a kind of cutting-off, throttling and checking valve according to claim 1, it is characterized in that: said valve rod is arranged with two ends outward and acts on the Returnning spring that is connected on valve gap lower wall and the flap respectively.
3. a kind of cutting-off, throttling and checking valve according to claim 1 is characterized in that: the filler in the described packing cavity includes two sections, and is provided with spacer ring between these two sections fillers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204703243U CN202327261U (en) | 2011-11-23 | 2011-11-23 | Stopping and throttling check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204703243U CN202327261U (en) | 2011-11-23 | 2011-11-23 | Stopping and throttling check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202327261U true CN202327261U (en) | 2012-07-11 |
Family
ID=46439240
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204703243U Expired - Fee Related CN202327261U (en) | 2011-11-23 | 2011-11-23 | Stopping and throttling check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202327261U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103410988A (en) * | 2013-08-07 | 2013-11-27 | 兰州高压阀门有限公司 | Military extra-high-pressure oxygen valve |
| WO2018053667A1 (en) * | 2016-09-22 | 2018-03-29 | 陈金京 | High-performance directional y-shaped valve having three effects, for nuclear power island core |
-
2011
- 2011-11-23 CN CN2011204703243U patent/CN202327261U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103410988A (en) * | 2013-08-07 | 2013-11-27 | 兰州高压阀门有限公司 | Military extra-high-pressure oxygen valve |
| WO2018053667A1 (en) * | 2016-09-22 | 2018-03-29 | 陈金京 | High-performance directional y-shaped valve having three effects, for nuclear power island core |
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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: 20120711 Termination date: 20131123 |