CN205190790U - Butterfly valve - Google Patents
Butterfly valve Download PDFInfo
- Publication number
- CN205190790U CN205190790U CN201521040162.4U CN201521040162U CN205190790U CN 205190790 U CN205190790 U CN 205190790U CN 201521040162 U CN201521040162 U CN 201521040162U CN 205190790 U CN205190790 U CN 205190790U
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- valve
- seal ring
- valve body
- bump
- valve plate
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Abstract
The utility model discloses a butterfly valve, its technical scheme main points include valve plate in the valve body, valve body, with valve plate fixed connection's valve rod with be connected with valve rod one end and be used for driving valve rod pivoted handle, still include embedded be used for in the valve body with valve plate complex sealing ring, the transversal forked tail form of personally submitting of sealing ring, be equipped with the dovetail with the sealing ring adaptation in the valve body, the sealing ring integral type is equipped with the bulge of radial salient dovetail, the axial both sides of bulge form transversal bulge loop structure of personally submitting isosceles trapezoid to the centre slope. An object of the utility model is to provide a sealed better butterfly valve of effect.
Description
Technical field
The utility model relates to a kind of valve, and more particularly it relates to a kind of butterfly valve.
Background technique
Butterfly valve is Flap valve again, it is the simple modulating valve of a kind of structure, the butterfly valve that can be used for the switch control rule of low pressure pipeline medium refers to that closure member (flap or butterfly plate) is disk, rotate a kind of valve reaching open and close around valve shaft, valve can be used for the flowing controlling all kinds fluids such as air, water, steam, various Korrosionsmedium, mud, oil product, liquid metal and radiating medium.
In prior art, application number is that the Chinese patent document of 200820168038.X discloses a kind of butterfly valve being convenient to control unlatching amplitude, the valve rod comprise the valve plate in valve body, valve body, being fixedly connected with valve plate is connected the handle for the rotation with ovable valve stem with valve rod one end, it is characterized in that: valve outer wall is fixed with support, support offers some spacing holes along handle sense of rotation, valve rod is run through along valve rod radial direction in described handle one end, the termination of this end of handle is with positioning convex, and when handle rotates, positioning convex is located in different spacing holes.
Above-mentioned patent document discloses a kind of butterfly valve of the prior art, as as shown in its Figure of description, when valve plate is in closed condition, also seal ring is provided with in the position of valve interior wall and valve plate sidewall contact, seal ring is generally embedded in the neutral position of valve body axis, formed with seal ring when valve plate closes and coordinate, thus relatively the butterfly valve of valve plate and valve body rigid contact has better to resistance to wear and acts on.But, as as shown in its Figure of description, existing seal ring is all that to be embedded in the groove of valve body (being T-slot in figure) fixing, when seal ring be used for the surface that contacts with valve plate produce the corrosive action wearing and tearing or be subject to fluid produce cave in time, just easily gap is produced in the joint of seal ring and valve plate, cause sealability to weaken, therefore existing above-mentioned seal ring need to improve in enhancing sealability.
Model utility content
For the deficiency that prior art exists, the purpose of this utility model is to provide a kind of sealing effect better butterfly valve.
For achieving the above object, the utility model provides following technological scheme: a kind of butterfly valve, comprise valve body, valve plate in valve body, the valve rod be fixedly connected with valve plate and be connected the handle for rotating with ovable valve stem with valve rod one end, also comprise the seal ring be embedded in for coordinating with valve plate in valve body, the cross section of described seal ring is dovetail shaped, the dovetail groove with seal ring adaptation is provided with in described valve body, described seal ring integral type is provided with the radial bump protruding dovetail groove, two side direction intermediate, inclined of described bump axis form the bulge loop structure that cross section is isosceles trapezoid.
The utility model effect is compared to existing technology, seal ring of the present utility model is embedded in dovetail groove incessantly, it is also provided with the radial bump protruding dovetail groove, undertaken contacting by bump and valve plate and seal, reach the object of Interference contact, extruding bump is needed to reach operating position when valve plate closes, and two side direction intermediate, inclined of described bump axis form the bulge loop structure that cross section is isosceles trapezoid, the cross section of bump becomes isosceles trapezoidal structure, therefore be ramp structure in the both sides of the relative valve body axis of bump, this ramp structure ensure that valve plate can squeeze into bump smoothly, and it is oppressed in dovetail groove, thus arrival sealing station.Increase the contact tightness between seal ring and valve plate by the mode of such scheme one side employing Interference contact, improve sealing effect; On the other hand, due to the setting of bump, give the surplus that seal ring is worn or corrodes, bump first can produce abrasion and corrosion under normal circumstances, be embedded in part in dovetail groove not contact with medium and valve plate, the phenomenon of there is not being worn, corroding, therefore usually only when bump is worn completely or corrodes, just can produce gap and reveal between valve plate and seal ring, therefore scheme is passed through, effectively improve the working life of sealing ring, thus also improve the working life of this butterfly valve, further increase its sealability.
The utility model is set to further: the circle edge of described valve plate is along being provided with the oblique surface suitable with the inclined-plane of bump.
By adopting technique scheme, at the oblique surface that the circle edge of valve plate is suitable along setting and above-mentioned inclined-plane, when valve plate turns to bump incline position, oblique surface can be adaptive with inclined-plane, two all become leaning structure, and more convenient valve plate squeezes into bump, operate more laborsaving.
The utility model is set to further: described valve body is made up of left valve barrel and right valve barrel, and left valve barrel and right valve barrel are docked and be fixedly clamped by clip.
By adopting technique scheme, the mode that left valve barrel and right valve barrel are with bolts compared to existing technology, the more convenient to install and dismounting of the utility model, facilitates the cleaning of butterfly valve and the replacing of seal ring.
The utility model is set to further: described seal ring is made up of fluorine rubber.
By adopting technique scheme, corrosion-resistant, the wear resistance of fluorine rubber are given prominence to, and adopt fluorine rubber to make seal ring, effectively can improve the working life of seal ring.
Accompanying drawing explanation
Fig. 1 is the structural representation of butterfly valve described in the present embodiment;
Fig. 2 is the structural representation of clip described in the present embodiment;
The schematic diagram that Fig. 3 is valve body described in the present embodiment and seal ring linkage structure;
Fig. 4 is the part A enlarged view of Fig. 1;
Fig. 5 is the structural representation of valve plate described in the present embodiment;
Fig. 6 is the stereogram of butterfly valve described in the present embodiment;
Fig. 7 is the exploded perspective view of Fig. 6.
Description of reference numerals: 1, valve body; 2, valve plate; 3, valve rod; 4, handle; 5, seal ring; 6, clip; 11, left valve barrel; 12, right valve barrel; 21, oblique surface; 51, bump.
Embodiment
Referring to figs. 1 through Fig. 7, the utility model embodiment is described further.
Butterfly valve described in the present embodiment, as shown in Figure 1, comprise valve body 1, valve plate 2 in valve body 1, the valve rod 3 be fixedly connected with valve plate 2 and be connected the handle 4 for rotating with ovable valve stem 3 with valve rod 3 one end, as Fig. 3, shown in Fig. 4, also comprise the seal ring 5 be embedded in for coordinating with valve plate 2 in valve body 1, the cross section of described seal ring 5 is dovetail shaped, the dovetail groove with seal ring 5 adaptation is provided with in described valve body 1, seal ring 5 is arranged to dovetail shaped and is coordinated with dovetail groove and have position-limiting action, can effectively prevent seal ring 5 from deviating from dovetail groove, and compare the structure of existing T-slot, seal ring 5 is comparatively continuous with the surface of contact of dovetail groove, stressed more even, fixing more stable.Described seal ring 5 integral type is provided with the radial bump 51 protruding dovetail groove, two side direction intermediate, inclined of described bump 51 axis form the bulge loop structure that cross section is isosceles trapezoid, preferred described seal ring 5 is made up of fluorine rubber, corrosion-resistant, the wear resistance of fluorine rubber are given prominence to, adopt fluorine rubber to make seal ring 5, effectively can improve the working life of seal ring 5.
Effect of the present utility model is, seal ring 5 of the present utility model is embedded in dovetail groove incessantly, it is also provided with the radial bump 51 protruding dovetail groove, carry out contacting with valve plate 2 by bump 51 and seal, reach the object of Interference contact, valve plate 2 needs extruding bump 51 to reach operating position when closing, and two side direction intermediate, inclined of described bump 51 axis form the bulge loop structure that cross section is isosceles trapezoid, the cross section of bump 51 becomes isosceles trapezoidal structure, therefore be ramp structure in the both sides of relative valve body 1 axis of bump 51, this ramp structure ensure that valve plate 2 can squeeze into bump 51 smoothly, and it is oppressed in dovetail groove, thus arrival sealing station.
Increase the contact tightness between seal ring 5 and valve plate 2 by the mode of such scheme one side employing Interference contact, improve sealing effect; On the other hand, due to the setting of bump 51, give the surplus that seal ring 5 is worn or corrodes, bump 51 first can produce abrasion and corrosion under normal circumstances, be embedded in part in dovetail groove not contact with medium and valve plate 2, the phenomenon of there is not being worn, corroding, therefore usually only when bump 51 is worn completely or corrodes, just can produce gap and reveal between valve plate 2 and seal ring 5, therefore scheme is passed through, effectively improve the working life of sealing ring 5, thus also improve the working life of this butterfly valve, further increase its sealability.
Further, as shown in Figure 5, the circle edge of described valve plate 2 is along being provided with the oblique surface 21 suitable with the inclined-plane of bump 51.At the oblique surface 21 that the circle edge of valve plate 2 is suitable along setting and above-mentioned inclined-plane, when valve plate 2 turns to bump 51 incline position, oblique surface 21 can be adaptive with inclined-plane, and two all become leaning structure, and more convenient valve plate 2 squeezes into bump 51, operate more laborsaving.
As shown in Figure 3, described valve body 1 is made up of left valve barrel 11 and right valve barrel 12, and left valve barrel 11 and right valve barrel 12 are docked and be fixedly clamped by clip 6.The mode that left valve barrel 11 is with bolts with right valve barrel 12 compared to existing technology, the utility model is more convenient to install and dismantle, convenient to the cleaning of butterfly valve and the replacing of seal ring 5.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, all within design concept of the present utility model, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (4)
1. a butterfly valve, the valve rod comprise the valve plate in valve body, valve body, being fixedly connected with valve plate and be connected the handle for rotating with ovable valve stem with valve rod one end, also comprise the seal ring be embedded in for coordinating with valve plate in valve body, it is characterized in that: the cross section of described seal ring is dovetail shaped, the dovetail groove with seal ring adaptation is provided with in described valve body, described seal ring integral type is provided with the radial bump protruding dovetail groove, and two side direction intermediate, inclined of described bump axis form the bulge loop structure that cross section is isosceles trapezoid.
2. butterfly valve according to claim 1, is characterized in that: the circle edge of described valve plate is along being provided with the oblique surface suitable with the inclined-plane of bump.
3. butterfly valve according to claim 1 and 2, is characterized in that: described valve body is made up of left valve barrel and right valve barrel, and left valve barrel and right valve barrel are docked and be fixedly clamped by clip.
4. butterfly valve according to claim 3, is characterized in that: described seal ring is made up of fluorine rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521040162.4U CN205190790U (en) | 2015-12-14 | 2015-12-14 | Butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521040162.4U CN205190790U (en) | 2015-12-14 | 2015-12-14 | Butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205190790U true CN205190790U (en) | 2016-04-27 |
Family
ID=55783783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521040162.4U Active CN205190790U (en) | 2015-12-14 | 2015-12-14 | Butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205190790U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107956889A (en) * | 2017-11-20 | 2018-04-24 | 南通贝特医药机械有限公司 | A kind of new soft sealing butterfly valve |
-
2015
- 2015-12-14 CN CN201521040162.4U patent/CN205190790U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107956889A (en) * | 2017-11-20 | 2018-04-24 | 南通贝特医药机械有限公司 | A kind of new soft sealing butterfly valve |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |