CN202074054U - Pneumatic butterfly valve - Google Patents
Pneumatic butterfly valve Download PDFInfo
- Publication number
- CN202074054U CN202074054U CN201120176016XU CN201120176016U CN202074054U CN 202074054 U CN202074054 U CN 202074054U CN 201120176016X U CN201120176016X U CN 201120176016XU CN 201120176016 U CN201120176016 U CN 201120176016U CN 202074054 U CN202074054 U CN 202074054U
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- China
- Prior art keywords
- piston
- cylinder body
- rotating
- pneumatic butterfly
- butterfly valve
- 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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- Lift Valve (AREA)
Abstract
The utility model relates to a pneumatic butterfly valve, which comprises a cylinder, a piston, a rotating mechanism, a spring, a rotating shaft, a connecting sleeve, a valve seat, a butterfly plate and a guide post for controlling the rotating mechanism to rotate axially. The bottom of the guide post is fixed into the bottom of the cylinder, and the upper portion of the guide post penetrates into the rotating mechanism. The piston of the pneumatic butterfly valve is made of nylon, and the guide post, a rotating pin, a rotating pin sleeve, the rotating shaft and the cylinder are made of stainless steel, so that noise and friction force in relative movement between the piston and the cylinder, between the piston and the rotating shaft and between the piston and the rotating pin sleeve are reduced, rolling bearings are no longer needed, and production cost is reduced. Simultaneously, the lead angle of a spiral groove of the piston is enlarged properly, and resistance between the piston and the rotating pin sleeve is decreased. An original pin and key groove structure is replaced by a guide post and hole structure, so that the piston moves more stably.
Description
Technical field
The utility model relates to a kind of angular travel valve, and it is specifically related to a kind of pneumatic butterfly valve.
Background technique
At present, the piston of pneumatic butterfly valve adopts pin to be connected with the structure of keyway, this linkage structure fluctuation of service, and the noise of the relative movement between piston and cylinder body, piston and running shaft, piston and the rotation guide is big, surface friction drag is big, and the motion that rolling bearing comes stable plunger must be installed, rolling bearing is fragile again, and the later stage needs to change constantly, has increased cost of production and user cost.So be badly in need of now addressing the above problem.
Summary of the invention
At the problems referred to above, the purpose of this utility model is to propose a kind of simple in structure, pneumatic butterfly valve that cost of production is low.
A kind of pneumatic butterfly valve, it comprises: cylinder body, piston, rotating machinery, spring, running shaft, connecting sleeve, valve seat and butterfly plate, also be provided with the axially guide pillar of rotation of control rotation mechanism, described guide pillar bottom is fixed in the bottom of cylinder body, and top penetrates in the rotating machinery.
Described cylinder body top is provided with suction tude, and described piston is located in the cylinder body, is arranged with spring between described piston bottom and the cylinder body base, and described rotating machinery is fixedly arranged on piston bottom, spring inner.
Described valve seat is connected with cylinder body by connecting sleeve.
Described butterfly plate is located at valve seat inside, is provided with valve seat insert between described valve seat and the butterfly plate.
Described rotating machinery is provided with piston spiral chute, rotation guide and rotating dog, and described rotating dog cover is sheathed on the rotating dog outside, and described rotation guide and rotating dog move reciprocatingly in the piston spiral chute.
Described piston adopts nylon material to make.
Described guide pillar, rotating dog, rotation guide, running shaft, cylinder body adopt stainless steel material to make.
The utility model has the following advantages owing to take above technological scheme:
The piston of a kind of pneumatic butterfly valve of the utility model adopts nylon material to make, guide pillar, rotating dog, rotation guide, running shaft, cylinder body adopt stainless steel material to make, relative movement between piston and cylinder body, piston and running shaft, piston and the rotation guide has just reduced noise, frictional force like this, also just no longer need rolling bearing, reduced cost of production.Piston spiral fluted lift angle suitably strengthens simultaneously, reduces the resistance between piston and the rotation guide.Use guide pillar and hole structure to substitute original pin and keyway arrangements, make the motion of piston more steady.
Description of drawings
Fig. 1 is the cross-sectional view of a kind of pneumatic butterfly valve of the utility model.
Embodiment
Below in conjunction with drawings and Examples the utility model is described in detail.
As shown in Figure 1, cross-sectional view for a kind of pneumatic butterfly valve of the utility model, it comprises: cylinder body 1, piston 2, rotating machinery 3, spring 4, guide pillar 5, running shaft 6, connecting sleeve 7, valve seat 8 and butterfly plate 9, described cylinder body 1 top is provided with suction tude 11, described piston 2 is located in the cylinder body 1, be arranged with spring 4 between piston 2 bottoms and cylinder body 1 base, described rotating machinery 3 is fixedly arranged on piston 2 bottoms, spring 4 inside.Described running shaft 6 and rotating machinery 3 interlocks are located at rotating machinery 3 bottoms.Described guide pillar 5 bottoms are fixed in the bottom of cylinder body 1, and top penetrates in the rotating machinery 3, and control rotation mechanism 3 axially rotates.Described valve seat 8 is connected with cylinder body 1 by connecting sleeve 7.Described butterfly plate 9 is located at valve seat 8 inside, is provided with valve seat insert 81 between valve seat 8 and butterfly plate 9.
Described rotating machinery 3 is provided with piston spiral chute 31, rotation guide 32 and rotating dog 33, and described rotation guide 32 is sheathed on rotating dog 33 outsides, and described rotation guide 32 and rotating dog 33 move reciprocatingly in piston spiral chute 31.
Described piston 2 adopts nylon material to make, described guide pillar 5, rotating dog 33, rotation guide 32, running shaft 6, cylinder body 1 adopt stainless steel material to make, relative movement between piston 2 and cylinder body 1, piston 2 and running shaft 6, piston 2 and the rotation guide 33 has just reduced noise, frictional force like this, also just no longer need rolling bearing, reduced cost of production.The lift angle of piston spiral chute 31 suitably strengthens simultaneously, also can reduce the resistance between piston 2 and the rotation guide 33.Use guide pillar 5 and hole structure to substitute original pin and keyway arrangements, make the motion of piston 2 more steady.
A kind of pneumatic butterfly valve of the utility model is when work, piston 2 moves up and down at the driving lower edge guide pillar 5 of bleed pressure or spring 4 elastic force, rotating dog 33 and rotation guide 32 move along piston spiral chute 31 simultaneously, rotating dog 33 driven rotary axles 6 rotate, thereby the straight line motion of realizing piston 2 is converted to rotatablely moving of running shaft 6.Transmit by connecting sleeve 7 again, make butterfly plate 9 rotations to produce angular displacement, realize butterfly plate 9 and valve seat insert forced seal or away from.
The utility model only carries out illustrative with the foregoing description; the structure of each parts, the position is set and connects and all can change to some extent; on the basis of technical solutions of the utility model; all improvement and equivalents of individual component being carried out according to the utility model principle all should not got rid of outside protection domain of the present utility model.
Claims (7)
1. pneumatic butterfly valve, it comprises: cylinder body, piston, rotating machinery, spring, running shaft, connecting sleeve, valve seat and butterfly plate, it is characterized in that: also be provided with the axially guide pillar of rotation of control rotation mechanism, described guide pillar bottom is fixed in the bottom of cylinder body, and top penetrates in the rotating machinery.
2. a kind of pneumatic butterfly valve as claimed in claim 1, it is characterized in that: described cylinder body top is provided with suction tude, and described piston is located in the cylinder body, is arranged with spring between described piston bottom and the cylinder body base, described rotating machinery is fixedly arranged on piston bottom, spring inner.
3. a kind of pneumatic butterfly valve as claimed in claim 1, it is characterized in that: described valve seat is connected with cylinder body by connecting sleeve.
4. a kind of pneumatic butterfly valve as claimed in claim 1, it is characterized in that: described butterfly plate is located at valve seat inside, is provided with valve seat insert between described valve seat and the butterfly plate.
5. a kind of pneumatic butterfly valve as claimed in claim 1, it is characterized in that: described rotating machinery is provided with piston spiral chute, rotation guide and rotating dog, described rotating dog cover is sheathed on the rotating dog outside, and described rotation guide and rotating dog move reciprocatingly in the piston spiral chute.
6. a kind of pneumatic butterfly valve as claimed in claim 1 or 2 is characterized in that: described piston adopts nylon material to make.
7. as the arbitrary described a kind of pneumatic butterfly valve of claim 1 to 5, it is characterized in that: described guide pillar, rotating dog, rotation guide, running shaft, cylinder body adopt stainless steel material to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120176016XU CN202074054U (en) | 2011-05-30 | 2011-05-30 | Pneumatic butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120176016XU CN202074054U (en) | 2011-05-30 | 2011-05-30 | Pneumatic butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202074054U true CN202074054U (en) | 2011-12-14 |
Family
ID=45112157
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120176016XU Expired - Fee Related CN202074054U (en) | 2011-05-30 | 2011-05-30 | Pneumatic butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202074054U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104676079A (en) * | 2015-03-06 | 2015-06-03 | 成都中寰流体控制设备有限公司 | Compact valve driving mechanism |
| CN105422968A (en) * | 2015-12-21 | 2016-03-23 | 杭州江南控制阀有限公司 | Pneumatic swing type open upward discharge valve |
| CN110553085A (en) * | 2019-08-27 | 2019-12-10 | 武汉九欣烨盛能源科技有限公司 | Pneumatic valve structure of boiler gas turbine |
-
2011
- 2011-05-30 CN CN201120176016XU patent/CN202074054U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104676079A (en) * | 2015-03-06 | 2015-06-03 | 成都中寰流体控制设备有限公司 | Compact valve driving mechanism |
| CN105422968A (en) * | 2015-12-21 | 2016-03-23 | 杭州江南控制阀有限公司 | Pneumatic swing type open upward discharge valve |
| CN110553085A (en) * | 2019-08-27 | 2019-12-10 | 武汉九欣烨盛能源科技有限公司 | Pneumatic valve structure of boiler gas turbine |
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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: 20111214 Termination date: 20130530 |