CN204592329U - The light-duty butterfly valve of low load - Google Patents
The light-duty butterfly valve of low load Download PDFInfo
- Publication number
- CN204592329U CN204592329U CN201520194920.1U CN201520194920U CN204592329U CN 204592329 U CN204592329 U CN 204592329U CN 201520194920 U CN201520194920 U CN 201520194920U CN 204592329 U CN204592329 U CN 204592329U
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- China
- Prior art keywords
- valve
- hole
- valve body
- cylinder
- valve rod
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Abstract
The utility model discloses the light-duty butterfly valve of low load, it comprises valve body, and valve body is provided with support, and support is provided with handwheel, and handwheel is connected with cylinder; Cylinder is provided with reduction valve and positioning work piece; The output shaft of cylinder is connected with handwheel; Valve body upper and lower corresponding is provided with through hole and lower through-hole, and valve rod passes valve body by upper through hole and lower through-hole, and one end of valve rod is connected with the output shaft of cylinder; Valve rod is provided with some valve plates.Be provided with filler in space between upper and lower through hole and valve rod, filler is all sealed by the Gland be arranged on upper and lower through hole.The bearing for fixing valve rod and valve body is provided with outside the upper and lower through hole of valve body.The utility model heavy caliber is lightweight, open and close torque is little, is applicable to normal temperature, high-temperature gas regulable control.External bearings is located, and effectively avoids valve stuck under temperature variation.
Description
Technical field
The utility model relates to the light-duty butterfly valve of low load.
Background technique
Traditional butterfly valve is a visual plant in water-feeding & drainaging pipeline system, along with the progress of industrial technology, has higher requirement to the structure of butterfly valve and performance.Be widely used in the plumbing industrial fields such as municipal administration, oil, chemical industry, light industry at present, the kind of butterfly valve is a lot, comprises the soft sealing butterfly valve adopting rubber seal and the hard seal butterfly valve adopting metalwork sealing.Existing butterfly valve structure more complicated, high temperature is easily stuck, and sealing is poor, and leakage rate is large, and voltage withstand class is low and Applicable scope is narrow.
Model utility content
The technical problems to be solved in the utility model is the defect overcoming prior art, provides low load light-duty butterfly valve.
In order to solve the problems of the technologies described above, the utility model provides following technological scheme:
The light-duty butterfly valve of the low load of the utility model, it comprises valve body, and described valve body is provided with support, and described support is provided with handwheel, and described handwheel is connected with cylinder; Described cylinder is provided with reduction valve and positioning work piece; The output shaft of described cylinder is connected with described handwheel; Described valve body upper and lower corresponding is provided with through hole and lower through-hole, and valve rod passes described valve body by described upper through hole and lower through-hole, and one end of described valve rod is connected with the output shaft of described cylinder; Described valve rod is provided with some valve plates.Described handwheel is connected with cylinder can realize automation, manual two kinds of control forms.
Further, be provided with filler in the space between described upper and lower through hole and described valve rod, described filler is all sealed by the Gland be arranged on described upper and lower through hole.
Further, the bearing for fixing described valve rod and described valve body is provided with outside the upper and lower through hole of described valve body.
Further, described valve rod is connected by fixture block with the output shaft of described cylinder.
Further, described handwheel is provided with handwheel.
Further, described valve rod is fixedly connected with by locating stud with described valve plate.
In the utility model, described valve body is used for ensureing to be connected with pipeline, and undertaking trim and upper cover position are fixed; Described valve plate is for regulating fluid flow, and different spool shape, regulates form different; Described valve rod is for connecting actuator and valve plate; Described bearing and valve body combine and ensure that valve rod position on valve body is relative fixing, reduce friction; Described Gland, for compressing filler, causes packing seal; Described filler is used for sealed valve stem medium and does not leak outside; Described locating stud for connecting valve plate and valve rod, standing valve Board position; Described reduction valve is the force value needed for supply pressure adjusting to positioning work piece and control gear; Described positioning work piece accepts 4 ~ 20mA DC current signal from control system, and comes control valve position to pneumatic rotary actuator's conveying air; Described cylinder, when ventilating, gas pressure overcomes the thrust that spring force produces on piston, output shaft rotation, leans on the elastic force of spring reset to make output shaft recover initial position when losing gas.
Working principle: positioning work piece is by accepting 4 ~ 20mA DC current signal to control the air to cylinder conveying, pressure increases promotion piston overpowers spring force thus makes output shaft rotation, output shaft is connected with valve rod fixture block, and thus valve rod follows output shaft rotation, thus achieves the rotation of valve plate; During no signal, cylinder makes valve closing by the elastic force of spring reset.
The beneficial effect that the utility model reaches is:
The utility model heavy caliber is lightweight, open and close torque is little, is applicable to normal temperature, high-temperature gas regulable control.External bearings is located, and effectively avoids valve stuck under temperature variation.
Accompanying drawing explanation
Accompanying drawing is used to provide further understanding of the present utility model, and forms a part for specification, is used from explanation the utility model, does not form restriction of the present utility model with embodiment one of the present utility model.In the accompanying drawings:
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the right TV structure schematic diagram of Fig. 1.
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described, should be appreciated that preferred embodiment described herein is only for instruction and explanation of the utility model, and be not used in restriction the utility model.
As depicted in figs. 1 and 2, the light-duty butterfly valve of the low load of the utility model, it comprises valve body 1, and described valve body 1 is provided with support 2, and described support 2 is provided with handwheel 3, and described handwheel 3 is connected with cylinder 4; Described cylinder 4 is provided with reduction valve 5 and positioning work piece 6; The output shaft 7 of described cylinder 4 is connected with described handwheel 3; Described valve body 1 upper and lower corresponding is provided with through hole 8 and lower through-hole 9, and valve rod 10 passes described valve body 1 by described upper through hole 8 and lower through-hole 9, and one end of described valve rod 10 is connected with the output shaft 7 of described cylinder 4; Described valve rod 10 is provided with some valve plates 11.Described handwheel 3 is connected with cylinder 4 can realize automation, manual two kinds of control forms.
Be provided with filler 12 in space between described upper and lower through hole 8,9 and described valve rod 10, described filler 12 is all sealed by the Gland 13 be arranged on described upper and lower through hole 8,9.
The bearing 14 for fixing described valve rod 10 and described valve body 1 is provided with outside the upper and lower through hole 8,9 of described valve body 1.
Described valve rod 10 is connected by fixture block 15 with the output shaft 7 of described cylinder 4.
Described handwheel 3 is provided with handwheel 16.
Described valve rod 10 is fixedly connected with by locating stud 17 with described valve plate 11.
In the utility model, described valve body is used for ensureing to be connected with pipeline, and undertaking trim and upper cover position are fixed; Described valve plate is for regulating fluid flow, and different spool shape, regulates form different; Described valve rod is for connecting actuator and valve plate; Described bearing and valve body combine and ensure that valve rod position on valve body is relative fixing, reduce friction; Described Gland, for compressing filler, causes packing seal; Described filler is used for sealed valve stem medium and does not leak outside; Described locating stud for connecting valve plate and valve rod, standing valve Board position; Described reduction valve is the force value needed for supply pressure adjusting to positioning work piece and control gear; Described positioning work piece accepts 4 ~ 20mA DC current signal from control system, and comes control valve position to pneumatic rotary actuator's conveying air; Described cylinder, when ventilating, gas pressure overcomes the thrust that spring force produces on piston, output shaft rotation, leans on the elastic force of spring reset to make output shaft recover initial position when losing gas.
Working principle: positioning work piece is by accepting 4 ~ 20mA DC current signal to control the air to cylinder conveying, pressure increases promotion piston overpowers spring force thus makes output shaft rotation, output shaft is connected with valve rod fixture block, and thus valve rod follows output shaft rotation, thus achieves the rotation of valve plate; During no signal, cylinder makes valve closing by the elastic force of spring reset.
The utility model heavy caliber is lightweight, open and close torque is little, is applicable to normal temperature, high-temperature gas regulable control.External bearings is located, and effectively avoids valve stuck under temperature variation.
Last it is noted that the foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, although be described in detail the utility model with reference to previous embodiment, for a person skilled in the art, it still can be modified to the technological scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (6)
1. the light-duty butterfly valve of low load, is characterized in that, comprise valve body, and described valve body is provided with support, and described support is provided with handwheel, and described handwheel is connected with cylinder; Described cylinder is provided with reduction valve and positioning work piece; The output shaft of described cylinder is connected with described handwheel; Described valve body upper and lower corresponding is provided with through hole and lower through-hole, and valve rod passes described valve body by described upper through hole and lower through-hole, and one end of described valve rod is connected with the output shaft of described cylinder; Described valve rod is provided with some valve plates.
2. the light-duty butterfly valve of low load according to claim 1, is characterized in that, is provided with filler in the space between described upper and lower through hole and described valve rod, and described filler is all sealed by the Gland be arranged on described upper and lower through hole.
3. the light-duty butterfly valve of low load according to claim 1, is characterized in that, is provided with the bearing for fixing described valve rod and described valve body outside the upper and lower through hole of described valve body.
4. the light-duty butterfly valve of low load according to claim 1, it is characterized in that, described valve rod is connected by fixture block with the output shaft of described cylinder.
5. the light-duty butterfly valve of low load according to claim 1, is characterized in that, described handwheel is provided with handwheel.
6. the light-duty butterfly valve of low load according to claim 1, it is characterized in that, described valve rod is fixedly connected with by locating stud with described valve plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520194920.1U CN204592329U (en) | 2015-04-01 | 2015-04-01 | The light-duty butterfly valve of low load |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520194920.1U CN204592329U (en) | 2015-04-01 | 2015-04-01 | The light-duty butterfly valve of low load |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204592329U true CN204592329U (en) | 2015-08-26 |
Family
ID=53928482
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520194920.1U Expired - Fee Related CN204592329U (en) | 2015-04-01 | 2015-04-01 | The light-duty butterfly valve of low load |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204592329U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105333162A (en) * | 2015-10-26 | 2016-02-17 | 无锡市圣科不锈钢气动自控阀门厂 | Automatic regulating valve disc |
| CN106704606A (en) * | 2017-02-08 | 2017-05-24 | 江苏神通阀门股份有限公司 | Bearing assembling unit for high-temperature butterfly valve |
-
2015
- 2015-04-01 CN CN201520194920.1U patent/CN204592329U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105333162A (en) * | 2015-10-26 | 2016-02-17 | 无锡市圣科不锈钢气动自控阀门厂 | Automatic regulating valve disc |
| CN106704606A (en) * | 2017-02-08 | 2017-05-24 | 江苏神通阀门股份有限公司 | Bearing assembling unit for high-temperature butterfly valve |
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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: 20150826 |