CN204553862U - A kind of bellows antibiotic stop valve - Google Patents
A kind of bellows antibiotic stop valve Download PDFInfo
- Publication number
- CN204553862U CN204553862U CN201520217659.2U CN201520217659U CN204553862U CN 204553862 U CN204553862 U CN 204553862U CN 201520217659 U CN201520217659 U CN 201520217659U CN 204553862 U CN204553862 U CN 204553862U
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- valve
- bellows
- end surface
- flap
- polyfluortetraethylene plate
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Abstract
The utility model discloses a kind of bellows antibiotic stop valve, comprise valve body, valve gap, flap, bellows and valve rod, valve gap is installed on valve body, bellows-sheathed is placed on valve rod, flap is installed on the lower end of valve rod, and flap lower end surface is provided with glove groove, and glove groove floor integral middle is provided with screw rod, screw rod is socketed with the first polyfluortetraethylene plate, elastic washer and flap nut successively from top to bottom, makes elastic washer clamp the first polyfluortetraethylene plate by locking flap nut; Valve body upper end is provided with first ring connected in star, first ring connected in star built-in type is provided with the second polyfluortetraethylene plate, second polyfluortetraethylene plate upper end is provided with valve bonnet seal circle, second polyfluortetraethylene plate lower end surface is connected with bellows upper-end surface, by locking valve gap, valve gap lower end surface and valve body upper-end surface and bellows upper-end surface is sealed.Technique scheme, reasonable in design, structure are simple, good seal performance, easy to maintenance.
Description
Technical field
The utility model relates to stop valve technical field, is specifically related to a kind of bellows antibiotic stop valve.
Background technique
Stop valve is a kind of valve being only applicable to carry out pipeline standard-sized sheet or complete shut-down control, and the open-shut device of stop valve is the flap of stopper, drives flap to move up and down realize flap to the unlatching of valve seat with closed by valve rod.The patent No. is 200820084337.5, the technological scheme that the model utility that denomination of invention is " bellows stop valve " adopts is the valve seat of the sealing surface weld deposit cemented carbide between valve body and spool, this scheme is beneficial to the sealing strengthened between valve body and spool to a certain extent, but along with the passing of service time, between the valve seat of cemented carbide and flap, sealing worse and worse, can fundamentally cannot solve the problem of leakage.
In addition; when being in opening state for avoiding valve, medium leaks into valve body outside along valve rod by stuffing box packing, causes valve to produce evaporating, emitting, dripping or leaking of liquid or gas phenomenon; bellows is overlapped in usual meeting on valve rod; valve rod is moved, to strengthen the sealing of valve, but in existing product in flexible bellows; mostly all one end of bellows and valve rod are welded as a whole; when bellows needs to change, valve rod must be communicated with and together change, make inconvenient maintenance.
Summary of the invention
For the deficiency that prior art exists, the purpose of this utility model is to provide that a kind of reasonable in design, structure are simple, good seal performance, bellows antibiotic stop valve easy to maintenance.
For achieving the above object, the utility model provides following technological scheme: a kind of bellows antibiotic stop valve, comprise valve body, valve gap, flap, bellows and valve rod, described valve gap is installed on valve body, described bellows-sheathed is placed on valve rod, described flap is installed on the lower end of valve rod, described flap lower end surface is provided with glove groove, described glove groove floor integral middle is provided with screw rod, described screw rod is socketed with the first polyfluortetraethylene plate successively from top to bottom, elastic washer and flap nut, elastic washer is made to clamp the first polyfluortetraethylene plate by locking flap nut, described valve body upper end is provided with first ring connected in star, described first ring connected in star built-in type is provided with the second polyfluortetraethylene plate, second polyfluortetraethylene plate upper end is provided with valve bonnet seal circle, described second polyfluortetraethylene plate lower end surface is connected with bellows upper-end surface, by locking valve gap, valve gap lower end surface and valve body upper-end surface and bellows upper-end surface is sealed.
By adopting technique scheme, the combination of the first polyfluortetraethylene plate of flap lower end and elastic washer and the second polyfluortetraethylene plate and valve bonnet seal circle makes good, the easy flushing of valve seal performance, is not easily detained medium and produces medium cross pollution; The bellows that valve rod is socketed is easy to connect, and good seal performance is not easily leaked, and bellows easy accessibility, change easily, structure is simple, easy to maintenance.
The utility model is set to further: described flap upper end is provided with positioning convex, and this positioning convex upper-end surface is provided with valve rod mounting groove, is evenly provided with three opening slots in described valve rod mounting groove.By this setting, valve flap structure is arranged rationally, and valve rod is easy for installation, and opening slot quantity is arranged rationally, and buildup flows out automatically, more effectively avoids microbiological contamination.
The utility model is also set to further: described valve rod lower end is positioned at opening slot position and is provided with the second annular groove, described valve rod mounting groove internal face is positioned at opening slot position and is provided with the 3rd annular groove, described valve rod lower end is socketed with O-ring seals, and this O-ring seals and the second annular groove and the 3rd annular groove clamping.By this setting, vibrational power flow is more reasonable, valve rod and flap sealability better.
The utility model is also set to further: described bellows lower end and positioning convex outer wall are socketed, and bellows lower end surface is pressed on flap upper-end surface.By this setting, bellows lower end is easy to connect, fixing reliable.
The utility model is also set to further: the passage in described valve body all adopts arc round angle to design.By this setting, passage easily rinses, sterilize, and is not easily detained medium and produces medium cross pollution.
The utility model is also set to further: be equipped with several bolts between described valve gap and valve body, and described valve gap and valve body are bolted fixing.By this setting, valve gap and valve body easy to connect, fixing reliable.
The utility model has the advantages that: compared with prior art, the utility model vibrational power flow is more reasonable, and the combination of the first polyfluortetraethylene plate of flap lower end and elastic washer and the second polyfluortetraethylene plate and valve bonnet seal circle makes good, the easy flushing of valve seal performance, is not easily detained medium and produces medium cross pollution; The bellows that valve rod is socketed is easy to connect, and good seal performance is not easily leaked, and bellows easy accessibility, change easily, structure is simple, easy to maintenance.
Below in conjunction with Figure of description and specific embodiment, the utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment;
Fig. 2 is the enlarged diagram in I portion in Fig. 1.
Embodiment
See Fig. 1 and Fig. 2, a kind of bellows antibiotic stop valve disclosed in the utility model, comprise valve body 1, valve gap 2, flap 3, bellows 4 and valve rod 5, described valve gap 2 is installed on valve body 1, described bellows 4 is placed on valve rod 5, described flap 3 is installed on the lower end of valve rod 5, described flap 3 lower end surface is provided with glove groove 31, described glove groove 31 bottom surface integral middle is provided with screw rod 311, described screw rod 311 is socketed with the first polyfluortetraethylene plate 6 successively from top to bottom, elastic washer 7 and flap nut 8, elastic washer 7 is made to clamp the first polyfluortetraethylene plate 6 by locking flap nut 8, described valve body 1 upper end is provided with first ring connected in star 11, described first ring connected in star 11 built-in type is provided with the second polyfluortetraethylene plate 9, second polyfluortetraethylene plate 9 upper end is provided with valve bonnet seal circle 10, described second polyfluortetraethylene plate 9 lower end surface is connected with bellows 4 upper-end surface, by locking valve gap 2, valve gap 2 lower end surface and valve body 1 upper-end surface and bellows 4 upper-end surface is sealed.
As preferably, structure shape and the described glove groove 31 of the first polyfluortetraethylene plate 6 match, and the first polyfluortetraethylene plate 6 installation by adhering is in glove groove 31, can play the passage cut off in valve body, play seal action; Valve bonnet seal circle 10 can adopt O-ring seals.
For making the utility model structure more reasonable, as preferably, described in the present embodiment, flap 3 upper end is provided with positioning convex 32, and this positioning convex 32 upper-end surface is provided with valve rod mounting groove 321, is evenly provided with three opening slots 322 in described valve rod mounting groove 321.
Described valve rod 5 lower end is positioned at opening slot 322 position and is provided with the second annular groove 51, described valve rod mounting groove 321 internal face is positioned at opening slot 322 position and is provided with the 3rd annular groove 323, described valve rod 5 lower end is socketed with O-ring seals 12, and this O-ring seals 12 and the second annular groove 51 and the 3rd annular groove 323 clamping.
Described bellows 4 lower end and positioning convex 32 outer wall are socketed, and bellows 4 lower end surface is pressed on flap 3 upper-end surface.
Passage in described valve body 1 all adopts arc round angle to design.
Be equipped with several bolts 13 between described valve gap 2 and valve body 1, described valve gap 2 and valve body 1 are connected and fixed by bolt 13.Preferably, the center line around valve gap 2 evenly arranges 4 bolts 13 the bests.
In addition, valve design closes sealing, makes to play lasting effective sealing during valve wide open, again can replacing filler with pressure, can make pipeline maintenance work, improve productivity effect greatly; Valve adopts Ludox casting, enhances the fineness of valve tissue, makes force valve performance better, improves the working life of valve greatly.
During practical application, the combination of the first polyfluortetraethylene plate of flap lower end and elastic washer and the second polyfluortetraethylene plate and valve bonnet seal circle makes good, the easy flushing of valve seal performance, is not easily detained medium and produces medium cross pollution; The bellows that valve rod is socketed is easy to connect, and good seal performance is not easily leaked, and bellows easy accessibility, change easily, structure is simple, easy to maintenance.
Above-described embodiment is to specific descriptions of the present utility model; only for being further described the utility model; can not be interpreted as the restriction to the utility model protection domain, the technician of related domain makes some nonessential improvement according to the content of above-mentioned model utility to the utility model and adjustment all falls within protection domain of the present utility model.
Claims (6)
1. a bellows antibiotic stop valve, comprise valve body (1), valve gap (2), flap (3), bellows (4) and valve rod (5), described valve gap (2) is installed on valve body (1), described bellows (4) is placed on valve rod (5), described flap (3) is installed on the lower end of valve rod (5), it is characterized in that: described flap (3) lower end surface is provided with glove groove (31), described glove groove (31) bottom surface integral middle is provided with screw rod (311), described screw rod (311) is socketed with the first polyfluortetraethylene plate (6) successively from top to bottom, elastic washer (7) and flap nut (8), elastic washer (7) is made to clamp the first polyfluortetraethylene plate (6) by locking flap nut (8), described valve body (1) upper end is provided with first ring connected in star (11), described first ring connected in star (11) built-in type is provided with the second polyfluortetraethylene plate (9), second polyfluortetraethylene plate (9) upper end is provided with valve bonnet seal circle (10), described second polyfluortetraethylene plate (9) lower end surface is connected with bellows (4) upper-end surface, by locking valve gap (2), valve gap (2) lower end surface and valve body (1) upper-end surface and bellows (4) upper-end surface is sealed.
2. a kind of bellows antibiotic stop valve according to claim 1, it is characterized in that: described flap (3) upper end is provided with positioning convex (32), this positioning convex (32) upper-end surface is provided with valve rod mounting groove (321), is evenly provided with three opening slots (322) in described valve rod mounting groove (321).
3. a kind of bellows antibiotic stop valve according to claim 2, it is characterized in that: described valve rod (5) lower end is positioned at opening slot (322) position and is provided with the second annular groove (51), described valve rod mounting groove (321) internal face is positioned at opening slot (322) position and is provided with the 3rd annular groove (323), described valve rod (5) lower end is socketed with O-ring seals (12), and this O-ring seals (12) and the second annular groove (51) and the 3rd annular groove (323) clamping.
4. a kind of bellows antibiotic stop valve according to claim 3, it is characterized in that: described bellows (4) lower end and positioning convex (32) outer wall are socketed, and bellows (4) lower end surface is pressed on flap (3) upper-end surface.
5. a kind of bellows antibiotic stop valve according to claim 4, is characterized in that: the passage in described valve body (1) all adopts arc round angle to design.
6. a kind of bellows antibiotic stop valve according to claim 5, it is characterized in that: be equipped with several bolts (13) between described valve gap (2) and valve body (1), described valve gap (2) and valve body (1) are connected and fixed by bolt (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520217659.2U CN204553862U (en) | 2015-04-11 | 2015-04-11 | A kind of bellows antibiotic stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520217659.2U CN204553862U (en) | 2015-04-11 | 2015-04-11 | A kind of bellows antibiotic stop valve |
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| Publication Number | Publication Date |
|---|---|
| CN204553862U true CN204553862U (en) | 2015-08-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520217659.2U Active CN204553862U (en) | 2015-04-11 | 2015-04-11 | A kind of bellows antibiotic stop valve |
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| CN (1) | CN204553862U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108413053A (en) * | 2018-03-21 | 2018-08-17 | 浙江威腾阀门有限公司 | Closed type shut-off valve |
| CN109357044A (en) * | 2018-10-17 | 2019-02-19 | 天长市海翔自控设备有限公司 | A kind of five valve group of high temperature high voltage resistant bellows |
-
2015
- 2015-04-11 CN CN201520217659.2U patent/CN204553862U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108413053A (en) * | 2018-03-21 | 2018-08-17 | 浙江威腾阀门有限公司 | Closed type shut-off valve |
| CN109357044A (en) * | 2018-10-17 | 2019-02-19 | 天长市海翔自控设备有限公司 | A kind of five valve group of high temperature high voltage resistant bellows |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 325000 No. 1099, Yanming Road, Kunpeng street, oujiangkou industrial agglomeration zone, Wenzhou City, Zhejiang Province Patentee after: Eurovalve Group Co.,Ltd. Address before: 325000 standard factory base in Longwan District, Wenzhou City, Zhejiang Province Patentee before: OUDIAN VALVE CO.,LTD. |