CN217207785U - Butterfly valve seal for enhancing sealing reliability - Google Patents
Butterfly valve seal for enhancing sealing reliability Download PDFInfo
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- CN217207785U CN217207785U CN202220501381.1U CN202220501381U CN217207785U CN 217207785 U CN217207785 U CN 217207785U CN 202220501381 U CN202220501381 U CN 202220501381U CN 217207785 U CN217207785 U CN 217207785U
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- seal
- valve seal
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Abstract
The invention provides a butterfly valve seal for enhancing the sealing reliability, which comprises a base body and a mounting seat body arranged on the inner side of the base body; the cross section of the base body is trapezoidal, and the middle part of the outer wall of the base body is provided with a groove, so that two sealing lips are formed at the outer edge of the base body; the sealing lip is of an outward inclined structure, and the outer edge of the side wall of the sealing lip does not protrude out of the outer end face of the mounting seat body. The width of the mounting base body is larger than that of the base body, and extension parts protruding out of the base body are formed on two sides of the mounting base body respectively. The double-channel sealing lip is designed on the outer side of the base body, so that the sealing performance is good, the pressure resistance is strong, and the sealing reliability is effectively improved.
Description
Technical Field
The invention belongs to the technical field of valve product design and manufacture, and particularly relates to a butterfly valve seal for enhancing the sealing reliability.
Background
The butterfly valve is a regulating valve with simple structure, and is widely applied to the opening and closing control of various fluid control pipeline systems. Generally, the sealing of the butterfly valve is realized by pressing a sealing ring when a valve plate and a valve body are closed or by extruding the sealing ring by using the pressure of a medium, so that the sealing ring is tightly attached to the valve body, and the sealing effect is achieved. The existing butterfly valve seal is usually suitable for low-pressure working condition environments, continuous and stable work is difficult to realize in medium-high pressure environments, deformation easily occurs to a sealing element, the sealing effect is poor, even the sealing effect is invalid, and the use reliability is difficult to guarantee. Therefore, there is a need for improvements to existing seal structures to improve seal reliability.
Disclosure of Invention
In view of the above, the present invention provides a butterfly valve seal with enhanced sealing reliability, which is provided to overcome the defects in the prior art.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
a butterfly valve seal for enhancing the sealing reliability comprises a base body and a mounting seat body arranged on the inner side of the base body; the cross section of the base body is trapezoidal, and the middle part of the outer wall of the base body is provided with a groove, so that two sealing lips are formed at the outer edge of the base body; the sealing lip is of an outward inclined structure, and the outer edge of the side wall of the sealing lip does not protrude out of the outer end face of the mounting seat body.
Further, the width of the installation base body is larger than that of the base body, extension parts protruding out of the base body are formed on two sides of the installation base body respectively, namely, one side with a narrower cross section of the base body is close to the installation base body, so that a deformation space is formed between the base body and the installation base body on one side close to the sealing inner wall, sealing deformation is facilitated to guarantee sealing, and due to the structural design, the sealing lip forms reliable sealing and has self-adaptive adjustment deformation capacity.
Furthermore, fillet transition is adopted between the side wall of the base body and the extension part.
Further, an inner framework is arranged in the base body.
Furthermore, the inner framework is made of spring steel.
Furthermore, the groove is a V-shaped groove, and the inner framework is of a V-shaped structure with the shape consistent with that of the V-shaped groove.
Furthermore, the bottom of the V-shaped groove is of a circular arc structure.
Furthermore, the cross section width of the sealing lip is gradually reduced from the root part of the sealing lip to the top part of the sealing lip.
Furthermore, both sides of the top of the sealing lip are in a round angle structure.
Compared with the prior art, the invention has the following advantages:
according to the invention, the double sealing lips are designed on the outer side of the base body, so that the sealing reliability is effectively improved, particularly when the inner framework is arranged in the base body and the supporting framework is arranged in the groove between the two sealing lips, the resilience and the pressure resistance of the two sealing lips can be effectively improved, the sealing reliability of the sealing element is greatly enhanced, and the valve is ensured to be stable in sealing and durable.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and, together with the description, serve to explain the invention without limitation. In the drawings:
FIG. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a sectional structure of the invention;
FIG. 3 is a schematic view of the invention when an inner frame is provided in the base;
FIG. 4 is a schematic view of the present invention creating a support frame in the groove between two lips;
fig. 5 is an enlarged view of the structure at a in fig. 4.
Detailed Description
It should be noted that the embodiments and features of the embodiments of the present invention may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings, which are merely for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected" and "connected" are to be construed broadly, and may be, for example, a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the creation of the present invention can be understood by those of ordinary skill in the art through specific situations.
The invention will be described in detail with reference to the following embodiments with reference to the attached drawings.
A butterfly valve seal for enhancing the sealing reliability is disclosed, as shown in fig. 1 to 5, and comprises a base body 1 and a mounting seat body 2 at the inner side of the base body, namely, the mounting seat body is positioned at one side close to the center of the base body. The cross section of the base body is trapezoidal, and the middle part of the outer wall of the base body is provided with a groove 3, so that two sealing lips 4 are formed at the outer edge of the base body; the sealing lip is of an outward inclined structure, and the outer edge of the side wall 5 of the sealing lip does not protrude out of the outer end face 6 of the mounting seat body.
Above-mentioned installation pedestal width is greater than the width of base member (being close to installation pedestal one side), form respectively in installation pedestal both sides and stick out in the extension portion 7 of base member, adopt the fillet transition between base member lateral wall and extension portion promptly, the narrower one side in base member cross-section is close to the installation pedestal, make base member and installation pedestal form deformation space 8 in one side of being close to sealed inner wall, be favorable to sealing under the condition of going into in the sealed recess in the installation, the space that still can produce has, through base member atress deformation in order to guarantee sealed reliable, such structural design, the seal lip can form effectual sealed, and the seal lip has the deformability of self-adaptation regulation.
In an alternative embodiment, an inner skeleton 9 is provided in the base body. By way of example, the inner frame is made of spring steel. When installing this seal in the valve plate, under the valve plate closed state, through the skeleton in the base member, the effectual pressure resistance who improves the base member also has the two seal lips of preventing to produce too big deformation to the outside, and the elastic recovery ability reinforcing, seal lip outer fringe 10 is inseparabler with the valve body laminating, has strengthened sealing performance, and sealing reliability is higher.
In order to ensure that the two sealing lips formed on the outer edge of the base body exert better sealing effect, in an alternative embodiment, the groove is a V-shaped groove, the inner framework is in a V-shaped structure consistent with the shape of the V-shaped groove, and the bottom of the V-shaped groove is in an arc-shaped structure. In yet another alternative embodiment, the groove may be a U-shaped groove, and the inner frame may have a U-shaped structure conforming to the shape of the U-shaped groove. Moreover, two sides of the top of the sealing lip are of a round angle structure, so that the abrasion of the edge part is reduced, and the service life is prolonged.
As further improvement, the width of the cross section of the sealing lip is gradually reduced from the root part of the sealing lip to the top part of the sealing lip, so that the sealing lip can be effectively ensured to have certain deformation capacity, the adaptability is improved, and the sealing performance is better.
The outer edge of the base body adopts the structural design of double sealing lips, and the sealing performance is obviously improved. In an alternative embodiment, a supporting frame 11 is provided on the outer surface of the groove, and the supporting frame may be made of a spring steel plate, for example. The concrete structural design can be, support the skeleton and include main part 12 and extension 13, and main part and recess surface laminating, extension extend to seal lip outer fringe surface, and extension do not stand out in seal lip outer fringe surface, do not hinder seal lip performance sealing effect, even seal lip atress deformation, the recess part is difficult for appearing stress concentration and leads to the condition of sealing member damage yet. The installation of this sealed butterfly valve can guarantee that the valve lasts stable work under the medium-high pressure operating mode, and sealing performance is good, and the reliability is high.
According to the invention, the double sealing lips are designed on the outer side of the base body, so that the sealing reliability is effectively improved, particularly when the inner framework is arranged in the base body and the supporting framework is arranged in the groove between the two sealing lips, the resilience and the pressure resistance of the two sealing lips can be effectively improved, the sealing reliability of the sealing element is greatly enhanced, and the valve is ensured to be stable in sealing and durable.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the invention, and any modifications, equivalents, improvements and the like that are made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (8)
1. The utility model provides a butterfly valve seal of reinforcing sealing reliability which characterized in that: comprises a base body and a mounting seat body arranged on the inner side of the base body; the cross section of the base body is trapezoidal, and the middle part of the outer wall of the base body is provided with a groove, so that two sealing lips are formed at the outer edge of the base body; the sealing lip is of an outward inclined structure, and the outer edge of the side wall of the sealing lip does not protrude out of the outer end face of the mounting seat body.
2. The butterfly valve seal with enhanced seal reliability of claim 1, wherein: the width of the installation base body is larger than that of the base body, and extension parts protruding out of the base body are formed on two sides of the installation base body respectively.
3. A butterfly valve seal with enhanced seal reliability according to claim 2, wherein: and the side wall of the base body and the extension part are in fillet transition.
4. A butterfly valve seal with enhanced seal reliability according to claim 1, wherein: an inner framework is arranged in the base body.
5. A butterfly valve seal with enhanced seal reliability according to claim 4, wherein: the inner framework is made of spring steel.
6. A butterfly valve seal with enhanced seal reliability according to claim 4, wherein: the groove adopts V-arrangement recess, and the inner frame adopts the V-arrangement structure unanimous with V-arrangement recess shape.
7. A butterfly valve seal with enhanced seal reliability according to claim 6, wherein: the bottom of the V-shaped groove is of a circular arc structure.
8. A butterfly valve seal with enhanced seal reliability according to claim 1, wherein: the cross section width of the sealing lip is gradually reduced from the root part of the sealing lip to the top part of the sealing lip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220501381.1U CN217207785U (en) | 2022-03-08 | 2022-03-08 | Butterfly valve seal for enhancing sealing reliability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220501381.1U CN217207785U (en) | 2022-03-08 | 2022-03-08 | Butterfly valve seal for enhancing sealing reliability |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217207785U true CN217207785U (en) | 2022-08-16 |
Family
ID=82755558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220501381.1U Active CN217207785U (en) | 2022-03-08 | 2022-03-08 | Butterfly valve seal for enhancing sealing reliability |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217207785U (en) |
-
2022
- 2022-03-08 CN CN202220501381.1U patent/CN217207785U/en active Active
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