CN203743456U - Butterfly valve - Google Patents
Butterfly valve Download PDFInfo
- Publication number
- CN203743456U CN203743456U CN201420145978.2U CN201420145978U CN203743456U CN 203743456 U CN203743456 U CN 203743456U CN 201420145978 U CN201420145978 U CN 201420145978U CN 203743456 U CN203743456 U CN 203743456U
- Authority
- CN
- China
- Prior art keywords
- valve
- ball
- valve rod
- butterfly
- ball base
- 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 - Lifetime
Links
- 238000005096 rolling process Methods 0.000 claims abstract description 28
- 239000000428 dust Substances 0.000 claims abstract description 21
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 11
- 239000010439 graphite Substances 0.000 claims abstract description 11
- 210000004907 gland Anatomy 0.000 claims abstract description 6
- 239000000945 filler Substances 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 8
- 238000012856 packing Methods 0.000 abstract 3
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000007634 remodeling Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Landscapes
- Lift Valve (AREA)
- Taps Or Cocks (AREA)
Abstract
The utility model discloses a butterfly valve, comprising a valve body, a valve seat and a valve rod, wherein a through grooves is formed in each of the upper and lower parts of the valve body, the valve rod penetrates through the upper and lower through grooves, packing is arranged between the wall of the upper through groove and the valve rod, a packing gland is arranged above the packing, the valve rod at the upper through groove is sleeved with an upper guide shaft sleeve, the valve rod at the lower through groove is sleeved with a lower guide shaft sleeve, a base cover is fixedly arranged on the valve body at the bottom of the lower through groove, the middle part of the valve rod is fixedly provided with a butterfly plate matched with the valve seat, a rolling and rotating structure is arranged between the bottom of the vale rod and the base cover, and a graphite dust ring is arranged between the valve rod and the rolling and rotating structure. According to the butterfly valve, rotation friction caused by fastening is convenient to reduce with the aid of the rolling and rotating structure arranged between the bottom of the vale rod and the base cover, thus being convenient to drive to rotate and reducing the torque of the valve rod; the graphite dust ring is arranged, so that dust is prevented from entering, and the valve is convenient to rotate and prevented from being blocked by excessive dust.
Description
Technical field
The utility model relates to a kind of valve, relates in particular to a kind of butterfly valve.
Background technique
Butterfly valve is again Flap valve, is a kind of modulating valve simple in structure, rotates to reach a kind of valve of open and close around valve rod, and on pipeline, main rising cut off and throttling action.Butterfly valve open-shut device is a discoidal butterfly plate, and the axis around himself in valve body rotates, thereby reaches the object that opens and closes or regulate.The good airproof performance of butterfly valve, but it is large to open and close the torsion needing, the friction of its butterfly plate and valve base chamber is the problem that butterfly valve need to solve always, especially the position relationship of the upper and lower and valve base chamber of butterfly plate, slightly dislocation will increase the frictional force of switching greatly, and affect the sealing of butterfly valve, butterfly plate is fixed on valve rod, therefore the upper-lower position of butterfly valve valve rod needs tight restriction, therefore the upper-lower position of butterfly valve valve rod is by tight fastening spacing, but fastening spacing meeting causes the frictional force of stem bottom excessive, valve rod is difficult to twisting, serious even stuck valve rod.
Model utility content
For solving the problems of the technologies described above, the utility model has designed a kind of upper-lower position that can fastening restriction butterfly valve valve rod can twist again the butterfly valve of valve rod smoothly.
The utility model adopts following technological scheme:
A kind of butterfly valve, comprise valve body, valve seat and valve rod, the upper and lower groove that offers respectively of valve body, valve rod is through upper and lower two grooves, between upper groove wall and valve rod, be provided with filler, filler top is provided with Gland, on valve rod, be positioned at groove place and be socketed with upper leading axle cover, on valve rod, be positioned at lower groove place and be socketed with lower leading axle cover, on the valve body of lower groove bottom, be fixedly installed bottom, valve rod middle part is fixedly installed the butterfly plate coordinating with valve seat, is provided with rolling rotational structure between stem bottom and bottom, between valve rod and rolling rotational structure, is provided with graphite dust ring.This butterfly valve conveniently reduces the frictional force of bringing rotation because of fastening by the rolling rotational structure that arranges between stem bottom and bottom auxiliary, facilitate driven rotary, reduce the torque of valve rod, and be provided with graphite dust ring, reduce entering of dust, convenient twisting valve, prevents the stuck valve of too much dust.
As preferably, described rolling rotational structure comprises ball base, rotary sleeve and ball, ball base is circular, on the inner ring surface of ball base, be provided with circular ball grooves, ball grooves is embedded with ball, the inner side of ball base inner ring surface is socketed with rotary sleeve, between ball base, rotary sleeve and ball, cooperatively interacts.The rotary sleeve inner face of this rolling rotational structure and valve rod contact, ball base and valve body contact, when valve rod twisting, driven rotary axle sleeve rotates on ball base by ball, reduces the frictional force of twisting.
As preferably, described rolling rotational structure can be also to comprise ball base, rotation pad and ball, ball base is circular, on the upper end anchor ring of ball base, be provided with circular ball grooves, ball grooves is embedded with ball, on the anchor ring of ball base upper end, be coated with rotation pad, between pearl seat, rotation pad and ball, cooperatively interact.The rotation pad upper surface of this rolling rotational structure and valve rod contact, ball base and valve body contact, when valve rod twisting, driven rotary pad rotates on ball base by ball, reduces the frictional force of twisting.
As preferably, described butterfly plate and valve seat contacting point are provided with sealing gasket.By sealing gasket lift-off seal, increase sealing effect.
As preferably, between described lower leading axle cover and bottom, be provided with seal ring.By seal ring lift-off seal, increase sealing effect.
As preferably, described valve body upper end is fixedly installed support.By being set, support facilitates fixed support electric structure.
The beneficial effects of the utility model are: this butterfly valve conveniently reduces the frictional force of bringing rotation because of fastening by the rolling rotational structure that arranges between stem bottom and bottom auxiliary, facilitate driven rotary, reduce the torque of valve rod, and be provided with graphite dust ring, reduce entering of dust, convenient twisting valve, prevents the stuck valve of too much dust.
Brief description of the drawings
Fig. 1 is a kind of structural representation of the present utility model;
Fig. 2 is a kind of structure for amplifying schematic diagram at I place in Fig. 1;
Fig. 3 is a kind of structural representation of rotational structure of rolling in the utility model;
Fig. 4 is a kind of sectional view of A-A in Fig. 3;
Fig. 5 is the another kind of structural representation of rotational structure of rolling in the utility model;
Fig. 6 is a kind of sectional view of B-B in Fig. 5;
In figure: 1, valve body, 2, valve rod, 3, butterfly plate, 4, filler, 5, upper leading axle cover, 6, lower leading axle cover, 7, seal ring, 8, rolling rotational structure, 9, bottom, 10, Gland, 11, support, 12, graphite dust ring, 13,, ball base, 14, rotary sleeve, 15, ball, 16, ball base, 17, rotation pad, 18, ball.
Embodiment
Below by specific embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is further described specifically:
Embodiment 1: as Fig. 1, Fig. 2, shown in Fig. 3 and Fig. 4, a kind of butterfly valve, comprise valve body 1, valve seat and valve rod 2, on valve body, the lower groove that offers respectively, valve rod is through upper, lower two grooves, between upper groove wall and valve rod, be provided with filler 4, filler top is provided with Gland 10, on valve rod, be positioned at groove place and be socketed with upper leading axle cover 5, on valve rod, be positioned at lower groove place and be socketed with lower leading axle cover 6, on the valve body of lower groove bottom, be fixedly installed bottom 9, valve rod middle part is fixedly installed the butterfly plate 3 coordinating with valve seat, between stem bottom and bottom, be provided with rolling rotational structure 8, between valve rod and rolling rotational structure, be provided with graphite dust ring 12, rolling rotational structure comprises ball base 13, rotary sleeve 14 and ball 15, ball base is circular, on the inner ring surface of ball base, be provided with circular ball grooves, ball grooves is embedded with ball, the inner side of ball base inner ring surface is socketed with rotary sleeve, ball base, between rotary sleeve and ball, cooperatively interact, butterfly plate and valve seat contacting point are provided with sealing gasket, between lower leading axle cover and bottom, be provided with seal ring 7, valve body upper end is fixedly installed support 11.
This butterfly valve conveniently reduces the frictional force of bringing rotation because of fastening by the rolling rotational structure that arranges between stem bottom and bottom auxiliary, facilitate driven rotary, reduce the torque of valve rod, and be provided with graphite dust ring, reduce entering of dust, convenient twisting valve, prevents the stuck valve of too much dust.The rotary sleeve inner face of this rolling rotational structure and valve rod contact, ball base and valve body contact, when valve rod twisting, driven rotary axle sleeve rotates on ball base by ball, reduces the frictional force of twisting.
Embodiment 2: as Fig. 1, Fig. 2, shown in Fig. 5 and Fig. 6, a kind of butterfly valve, comprise valve body 1, valve seat and valve rod 2, on valve body, the lower groove that offers respectively, valve rod is through upper, lower two grooves, between upper groove wall and valve rod, be provided with filler 4, filler top is provided with Gland 10, on valve rod, be positioned at groove place and be socketed with upper leading axle cover 5, on valve rod, be positioned at lower groove place and be socketed with lower leading axle cover 6, on the valve body of lower groove bottom, be fixedly installed bottom 9, valve rod middle part is fixedly installed the butterfly plate 3 coordinating with valve seat, between stem bottom and bottom, be provided with rolling rotational structure 8, between valve rod and rolling rotational structure, be provided with graphite dust ring 12, rolling rotational structure comprises ball base 16, rotation pad 17 and ball 18, ball base is circular, on the upper end anchor ring of ball base, be provided with circular ball grooves, ball grooves is embedded with ball, on the anchor ring of ball base upper end, be coated with rotation pad, pearl seat, between rotation pad and ball, cooperatively interact, butterfly plate and valve seat contacting point are provided with sealing gasket, between lower leading axle cover and bottom, be provided with seal ring 7, valve body upper end is fixedly installed support 11.
This butterfly valve conveniently reduces the frictional force of bringing rotation because of fastening by the rolling rotational structure that arranges between stem bottom and bottom auxiliary, facilitate driven rotary, reduce the torque of valve rod, and be provided with graphite dust ring, reduce entering of dust, convenient twisting valve, prevents the stuck valve of too much dust.The rotation pad upper surface of this rolling rotational structure and valve rod contact, ball base and valve body contact, when valve rod twisting, driven rotary pad rotates on ball base by ball, reduces the frictional force of twisting.
Above-described embodiment is preferably scheme of one of the present utility model, not the utility model is done to any pro forma restriction, also has other variant and remodeling under the prerequisite that does not exceed the technological scheme that claim records.
Claims (6)
1. a butterfly valve, comprise valve body, valve seat and valve rod, on valve body, the lower groove that offers respectively, valve rod is through upper, lower two grooves, between upper groove wall and valve rod, be provided with filler, filler top is provided with Gland, on valve rod, be positioned at groove place and be socketed with upper leading axle cover, on valve rod, be positioned at lower groove place and be socketed with lower leading axle cover, on the valve body of lower groove bottom, be fixedly installed bottom, valve rod middle part is fixedly installed the butterfly plate coordinating with valve seat, it is characterized in that, between described stem bottom and bottom, be provided with rolling rotational structure, between valve rod and rolling rotational structure, be provided with graphite dust ring.
2. a kind of butterfly valve according to claim 1, it is characterized in that, described rolling rotational structure comprises ball base, rotary sleeve and ball, ball base is circular, on the inner ring surface of ball base, be provided with circular ball grooves, ball grooves is embedded with ball, and the inner side of ball base inner ring surface is socketed with rotary sleeve, between ball base, rotary sleeve and ball, cooperatively interacts.
3. a kind of butterfly valve according to claim 1, it is characterized in that, described rolling rotational structure comprises ball base, rotation pad and ball, ball base is circular, on the upper end anchor ring of ball base, be provided with circular ball grooves, ball grooves is embedded with ball, on the anchor ring of ball base upper end, is coated with rotation pad, between pearl seat, rotation pad and ball, cooperatively interacts.
4. a kind of butterfly valve according to claim 1, is characterized in that, described butterfly plate and valve seat contacting point are provided with sealing gasket.
5. a kind of butterfly valve according to claim 1, is characterized in that, between described lower leading axle cover and bottom, is provided with seal ring.
6. a kind of butterfly valve according to claim 1, is characterized in that, described valve body upper end is fixedly installed support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420145978.2U CN203743456U (en) | 2014-03-28 | 2014-03-28 | Butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420145978.2U CN203743456U (en) | 2014-03-28 | 2014-03-28 | Butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203743456U true CN203743456U (en) | 2014-07-30 |
Family
ID=51343257
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420145978.2U Expired - Lifetime CN203743456U (en) | 2014-03-28 | 2014-03-28 | Butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203743456U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104315185A (en) * | 2014-09-01 | 2015-01-28 | 浙江永盛仪表有限公司 | Double-scraper ultra-hard sealing ball valve |
| CN105202201A (en) * | 2015-10-16 | 2015-12-30 | 江苏康创自控工程有限公司 | High-sealability dust-proof butterfly valve |
-
2014
- 2014-03-28 CN CN201420145978.2U patent/CN203743456U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104315185A (en) * | 2014-09-01 | 2015-01-28 | 浙江永盛仪表有限公司 | Double-scraper ultra-hard sealing ball valve |
| CN105202201A (en) * | 2015-10-16 | 2015-12-30 | 江苏康创自控工程有限公司 | High-sealability dust-proof butterfly valve |
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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 |
Owner name: ZHEJIANG YONGSHENG TECHNOLOGY CO., LTD. Free format text: FORMER NAME: ZHEJIANG YSMETER CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 311407 deer mountain industrial park, Hangzhou, Zhejiang, Fuyang Patentee after: ZHEJIANG YONGSHENG TECHNOLOGY Co.,Ltd. Address before: 311407 deer mountain industrial park, Hangzhou, Zhejiang, Fuyang Patentee before: ZHEJIANG YONGSHENG INSTRUMENTATION Co.,Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20140730 |
|
| CX01 | Expiry of patent term |