CN203549095U - Stop valve - Google Patents
Stop valve Download PDFInfo
- Publication number
- CN203549095U CN203549095U CN201320686583.9U CN201320686583U CN203549095U CN 203549095 U CN203549095 U CN 203549095U CN 201320686583 U CN201320686583 U CN 201320686583U CN 203549095 U CN203549095 U CN 203549095U
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- CN
- China
- Prior art keywords
- valve
- gland
- annular groove
- annular
- valve body
- 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 stop valve. The stop valve comprises a valve body, a valve cover and a valve rod. The valve body is provided with a valve cavity which is internally provided with a valve seat, packing is arranged between the valve rod and the valve cover, a gland presses the packing, the gland is fixedly connected with the valve cover through bolts, the side wall of the gland is sleeved with a spring, the upper end of the gland extends outwards to form an annular flange, the bolts penetrate through the annular flange to be fixedly connected with the valve cover, the lower end face of the annular flange is provided with a first annular groove, the position, corresponding to the first annular groove, on the upper end face of the valve cover is provided with a second annular groove, and the upper end and lower end of the spring are embedded into the first annular groove and the second annular groove respectively. By means of the technical scheme, the stop valve can position the gland very well, the packing cannot loose so that the sealing performance of the stop valve can be good, and outward leakage cannot happen.
Description
Technical field
The utility model relates to valve field, particularly a kind of stop valve.
Background technique
Existing a kind of stop valve, include valve body, valve gap, valve rod, described valve body is provided with valve pocket, valve gap is arranged on valve body, described valve body is provided with the flow channel with valve pocket conducting, flow pass, described valve rod one end extends in valve pocket through valve gap, in described valve pocket, be provided with spool, described spool and valve rod are linked, in described valve pocket, be provided with valve seat, between described valve rod and valve gap, be provided with stuffing box, in described stuffing box, be provided with filler, on described filler, be installed with gland, gland is provided with the through hole passing for valve rod, described gland is fixedly connected with through bolt with valve gap.But, the stop valve of this structure, described gland is directly fixed through bolt and valve gap, easily loosening thereby bolt easily produces the loosening filler that makes, and then makes stop valve poor sealing, easily causes and leaks.
Summary of the invention
The purpose of this utility model: in order to overcome the defect of prior art, the utility model provides a kind of stop valve, and it is positioning gland well, guarantees that filler can not become flexible, and then makes stop valve good airproof performance, can not cause and leak.
The technical solution of the utility model: a kind of stop valve, include valve body, valve gap, valve rod, described valve body is provided with valve pocket, valve gap is arranged on valve body, described valve body is provided with the flow channel with valve pocket conducting, flow pass, described valve rod one end extends in valve pocket through valve gap, in described valve pocket, be provided with spool, described spool and valve rod are linked, in described valve pocket, be provided with valve seat, between described valve rod and valve gap, be provided with stuffing box, in described stuffing box, be provided with filler, on described filler, be installed with gland, gland is provided with the through hole passing for valve rod, described gland is fixedly connected with through bolt with valve gap, it is characterized in that: on the sidewall of described gland, be arranged with spring, described gland upper end is outward extended with annular flange flange, described bolt is fixed through annular flange flange and valve gap, the lower end surface of described annular flange flange is provided with first ring connected in star, on described valve gap upper-end surface, corresponding first ring connected in star position is provided with the second annular groove, on described spring, lower two ends embed respectively described first ring connected in star, in the second annular groove.
Adopt technique scheme, by the spring arranging, when bolt is fixing by gland and valve gap, spring-compressed produces certain elastic force, thereby makes bolt be not easy to produce loosening, therefore, the stop valve of this structure, it is positioning gland well, guarantees that filler can not become flexible, and then make stop valve good airproof performance, can not cause and leak; By the first ring connected in star, the second annular groove that arrange, retaining spring well, prevents spring radial motion, thereby guarantees that gland is steady, can not produce inclination.
Further setting of the present utility model: be circumferentially with the 3rd annular groove along valve pocket on described valve body, corresponding the 3rd annular groove position, described valve gap lower end is provided with boss, between described boss and the 3rd annular groove, be installed with seal ring, described boss is provided with the annular seal groove matching with seal ring, described seal ring is placed in annular seal groove, on described valve body, be positioned at the 3rd annular groove and valve pocket intersection and be provided with groove, described groove upper end extends to the inner ring face position of corresponding seal ring on the 3rd annular groove.
Adopt above-mentioned further setting, by the seal ring arranging, make good airproof performance between valve gap and valve body; By boss, seal ring is pressed on the 3rd annular groove, seal ring is placed in annular seal groove, make like this location of seal ring more reliable; It is residual that the groove arranging can make between valve body and valve gap, not have medium inside the inner ring face of seal ring, thereby make stop valve, is corner or spot as yet untouched by a clean-up campaign.
Further setting more of the present utility model: be circumferentially with some cone teeth along flow channel, flow pass on described valve body.
Adopt above-mentioned further setting again, by the sawtooth arranging, when valve body is connected with external pipe, cone tooth can insert in external pipe, thereby good airproof performance when valve body is connected with external pipe is not easy to cause medium to leak.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model specific embodiment;
Fig. 2 is I part partial enlarged drawing in Fig. 1;
Fig. 3 is J part partial enlarged drawing in Fig. 1.
Embodiment
As Fig. 1, shown in 2, a kind of stop valve, include valve body 1, valve gap 2, valve rod 3, described valve body 1 is provided with valve pocket 11, valve gap 2 is arranged on valve body 1, described valve body 1 is provided with the flow channel 12 with valve pocket 11 conductings, flow pass 13, described valve rod 3 one end extend in valve pocket 11 through valve gap 2, in described valve pocket 11, be provided with spool 4, described spool 4 is linked with valve rod 3, in described valve pocket 11, be provided with valve seat 5, between described valve rod 3 and valve gap 2, be provided with stuffing box 6, in described stuffing box 6, be provided with filler 7, on described filler 7, be installed with gland 8, gland 8 is provided with the through hole 81 passing for valve rod 3, described gland 8 is fixedly connected with through bolt 9 with valve gap 2, on the sidewall of described gland 8, be arranged with spring 10, described gland 8 upper ends are outward extended with annular flange flange 82, described bolt 9 is fixing with valve gap 2 through annular flange flange 82, the lower end surface of described annular flange flange 82 is provided with first ring connected in star 821, on described valve gap 2 upper-end surfaces, corresponding first ring connected in star 821 positions are provided with the second annular groove 21, on described spring 10, lower two ends embed respectively described first ring connected in star 821, in the second annular groove 21.By the spring 10 arranging, when bolt 9 is fixed gland 8 with valve gap 2, spring 10 compressions produce certain elastic force, thereby make bolt 9 be not easy to produce, become flexible, therefore, the stop valve of this structure, it is positioning gland 8 well, guarantee that filler 7 can not become flexible, and then make stop valve good airproof performance, can not cause and leak; By the first ring connected in star 821, the second annular groove 21 that arrange, retaining spring 10 well, prevents spring 10 radial motions, thereby guarantees that gland 8 is steady, can not produce inclination.
As Fig. 1, shown in 3, in the utility model specific embodiment, on described valve body 1, along valve pocket 11, be circumferentially with the 3rd annular groove 14, described corresponding the 3rd annular groove 14 positions, valve gap 2 lower ends are provided with boss 22, between described boss 22 and the 3rd annular groove 14, be installed with seal ring 15, described boss 22 is provided with the annular seal groove 221 matching with seal ring 15, described seal ring 15 is placed in annular seal groove 221, on described valve body 1, be positioned at the 3rd annular groove 14 and be provided with groove 16 with valve pocket 11 intersections, described groove 16 upper ends extend to the inner ring face position of corresponding seal ring 15 on the 3rd annular groove 14.By the seal ring 15 arranging, make good airproof performance between valve gap 2 and valve body 1; By boss 22, seal ring 15 is pressed on the 3rd annular groove 14, seal ring 15 is placed in annular seal groove 221, make like this location of seal ring 15 more reliable; It is residual that the groove 16 arranging can make between valve body 1 and valve gap 2, not have medium inside the inner ring face of seal ring 15, thereby make stop valve, is corner or spot as yet untouched by a clean-up campaign.
As shown in Figure 1, in the utility model specific embodiment, on described valve body 1, along flow channel 12, flow pass 13, be circumferentially with some cone teeth 17.By the sawtooth 17 arranging, when valve body 1 is connected with external pipe, cone tooth 17 can insert in external pipe, thereby good airproof performance when valve body 1 is connected with external pipe is not easy to cause medium to leak.
Claims (3)
1. a stop valve, include valve body, valve gap, valve rod, described valve body is provided with valve pocket, valve gap is arranged on valve body, described valve body is provided with the flow channel with valve pocket conducting, flow pass, described valve rod one end extends in valve pocket through valve gap, in described valve pocket, be provided with spool, described spool and valve rod are linked, in described valve pocket, be provided with valve seat, between described valve rod and valve gap, be provided with stuffing box, in described stuffing box, be provided with filler, on described filler, be installed with gland, gland is provided with the through hole passing for valve rod, described gland is fixedly connected with through bolt with valve gap, it is characterized in that: on the sidewall of described gland, be arranged with spring, described gland upper end is outward extended with annular flange flange, described bolt is fixed through annular flange flange and valve gap, the lower end surface of described annular flange flange is provided with first ring connected in star, on described valve gap upper-end surface, corresponding first ring connected in star position is provided with the second annular groove, on described spring, lower two ends embed respectively described first ring connected in star, in the second annular groove.
2. stop valve according to claim 1, it is characterized in that: on described valve body, along valve pocket, be circumferentially with the 3rd annular groove, corresponding the 3rd annular groove position, described valve gap lower end is provided with boss, between described boss and the 3rd annular groove, be installed with seal ring, described boss is provided with the annular seal groove matching with seal ring, described seal ring is placed in annular seal groove, on described valve body, be positioned at the 3rd annular groove and valve pocket intersection and be provided with groove, described groove upper end extends to the inner ring face position of corresponding seal ring on the 3rd annular groove.
3. stop valve according to claim 1 and 2, is characterized in that: on described valve body, along flow channel, flow pass, be circumferentially with some cone teeth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320686583.9U CN203549095U (en) | 2013-10-31 | 2013-10-31 | Stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320686583.9U CN203549095U (en) | 2013-10-31 | 2013-10-31 | Stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203549095U true CN203549095U (en) | 2014-04-16 |
Family
ID=50467213
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320686583.9U Expired - Fee Related CN203549095U (en) | 2013-10-31 | 2013-10-31 | Stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203549095U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104455699A (en) * | 2014-11-28 | 2015-03-25 | 苏州市吴中区大陆电子设备厂 | Gate valve packing structure |
-
2013
- 2013-10-31 CN CN201320686583.9U patent/CN203549095U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104455699A (en) * | 2014-11-28 | 2015-03-25 | 苏州市吴中区大陆电子设备厂 | Gate valve packing structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140416 Termination date: 20161031 |