CN212297666U - Valve seat - Google Patents
Valve seat Download PDFInfo
- Publication number
- CN212297666U CN212297666U CN202022034289.2U CN202022034289U CN212297666U CN 212297666 U CN212297666 U CN 212297666U CN 202022034289 U CN202022034289 U CN 202022034289U CN 212297666 U CN212297666 U CN 212297666U
- Authority
- CN
- China
- Prior art keywords
- annular
- ring shape
- shape portion
- valve seat
- rubber sleeve
- 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.)
- Active
Links
Images
Landscapes
- Lift Valve (AREA)
Abstract
The utility model relates to a valve seat, including rubber sleeve and inner circle, rubber sleeve overcoat in the inner circle, the rubber sleeve include outer ring shape portion, the both ends lateral wall of outer ring shape portion extends respectively has turn-ups portion, two turn-ups portions and outer ring shape portion constitute the setting of I shape, the inner circle includes the fixed inner circle department that sets up in outer ring shape portion of circle ring shape portion, the symmetry is provided with two first through-holes in the inner circle ring shape portion, and the medial surface of inner circle ring shape portion is outstanding or flushes in the medial surface of outer ring shape portion, and the medial surface of inner circle ring shape portion sets up smoothly. By adopting the above scheme, the utility model overcomes the not enough of prior art existence provides a disk seat, and its moment of torsion that can reduce the valve rod prolongs the life of disk seat.
Description
Technical Field
The utility model belongs to the technical field of the valve technique and specifically relates to a disk seat.
Background
The valve seat is a detachable surface part in the valve and is used for supporting the valve core at the fully closed position and forming a sealing pair, and the diameter of the valve seat is the maximum flow diameter of the valve. For example, the valve seat of the butterfly valve is made of very wide materials, and various rubber, plastic and metal materials can be used as the valve seat material.
Generally, the valve seat is applied to non-corrosive media, in order to save cost, the valve seat is made of rubber, a valve plate is arranged on the inner ring of the valve seat, and in the opening or closing process of the valve plate, the friction force between the valve plate and the inner ring of the valve seat is large, so that the driving torque of a valve rod is too large, the inner ring of the valve seat is easily abraded, and the service life of the valve seat is not long.
Disclosure of Invention
The utility model overcomes prior art's is not enough, provides a disk seat, and it can reduce the moment of torsion of valve rod, prolongs the life of disk seat.
In order to realize the purpose, the utility model discloses a technical scheme is: the utility model provides a valve seat, includes rubber sleeve and inner circle, rubber sleeve overcoat in the inner circle, the rubber sleeve include outer annular portion, the both ends lateral wall of outer annular portion has extended respectively the turn-ups portion, two turn-ups portions and outer annular portion constitute the setting of I shape, the inner circle includes wear-resisting interior annular portion, and the fixed inner circle department that sets up in outer annular portion of interior annular portion, the symmetry is provided with two first through-holes in the interior annular portion, and the medial surface of interior annular portion is outstanding or flushes in the medial surface of outer annular portion, and the medial surface of interior annular portion sets up smoothly.
Through adopting above-mentioned scheme, rubber sleeve and inner circle combine together through heating vulcanization, install on the disk seat when the valve plate, the valve plate realizes opening or closing of valve plate with the cooperation of interior annular portion, and interior annular portion adopts wear-resisting material to make, and is more wear-resisting like this, can prolong the life of disk seat to the smooth setting of medial surface of interior annular portion has reduced the frictional force of valve plate and interior annular portion, can reduce the moment of torsion of valve rod.
The utility model discloses a further setting is: the inner circular part is positioned in the middle of the outer circular part, and the inner ring of the outer circular part is respectively provided with annular guide surfaces at two sides of the inner circular part.
Through adopting above-mentioned scheme, the valve plate is packed into interior annular portion from annular spigot surface department, therefore the installation of valve plate can be carried out to the both sides homoenergetic of disk seat to the position reasonable in design of interior annular portion, simple structure is convenient for install the valve plate.
The utility model discloses a further setting is: the inner side surface of the inner circular ring-shaped part is provided with an inner boss in an extending mode corresponding to the first through hole, the first through hole penetrates through the inner boss, and the periphery of the first through hole is provided with a protruding surface on the end surface of the inner boss.
By adopting the scheme, the end part of the valve plate can be supported by the inner boss, and the end part of the valve plate can be provided with the flat end surface due to the fact that the raised surface is arranged on the inner boss, the end part of the valve plate is in good sealing fit with the raised surface of the inner boss, so that the end part of the valve plate does not need to be made into a spherical shape, the processing difficulty of the valve plate is reduced, the valve plate is convenient to install, the structure is simple, and the design is reasonable.
The utility model discloses a further setting is: the outer side face of the inner circular ring-shaped portion extends to form an outer boss corresponding to the first through hole, the inner end diameter of the outer boss is larger than the outer end diameter, the first through hole penetrates through the outer boss, and the outer circular ring-shaped portion is provided with a second through hole corresponding to the first through hole.
Through adopting above-mentioned scheme, the inner diameter of outer boss is greater than the outer end diameter, like this when the rubber sleeve adds the vulcanizing treatment, is convenient for fix a position to through setting up outer boss, increased the stroke of first through-hole, play leak protection effect, and the setting of second through-hole, also be convenient for install the valve plate, simple structure, reasonable in design.
The utility model discloses a further setting is: the outer sides of the two flanging parts are respectively provided with an annular plane, the annular planes are connected with the annular guide surfaces, the end parts of the outer sides of the two flanging parts are respectively provided with an annular convex surface, the annular planes are connected with the annular convex surfaces through annular inclined planes, and the width of the two annular convex surfaces is larger than that of the two annular planes.
Through adopting above-mentioned scheme, set up in the valve body when the disk seat, because the both ends face punishment of rubber sleeve do not is provided with the annular convex surface, when valve body connecting tube, the flange terminal surface of pipeline can be inconsistent with the annular convex surface, and the annular convex surface plays the effect of sealing washer this moment, need not to increase external seal circle, simple structure, the installation of being convenient for.
The utility model discloses a further setting is: the inner sides of the two flanging parts are respectively provided with an inner flanging which is arranged in an inverted triangle, and the distance between the outer ends of the two opposite inner flanging is smaller than that between the inner ends.
By adopting the scheme, the inner flanging can avoid the deformation of the rubber sleeve during installation, and the shape design is reasonable.
The utility model discloses a further setting is: the inner ring is made of polytetrafluoroethylene, and the rubber sleeve is made of ethylene propylene diene monomer.
By adopting the scheme, the polytetrafluoroethylene has the advantages of high temperature resistance, corrosion resistance, wear resistance and the like, the outer ring is made of the ethylene propylene diene monomer, a good sealing effect can be achieved between the valve seat and the valve body, the (glass) or (carbon fiber) can be slightly added into the polytetrafluoroethylene material to achieve super wear resistance, and the inner ring can also be made of polyurethane.
The present invention will be further described with reference to the accompanying drawings.
Drawings
Fig. 1 is a schematic overall structure diagram of an embodiment of the present invention;
fig. 2 is a schematic view of a first cross-sectional structure according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a second cross-sectional structure according to an embodiment of the present invention;
fig. 4 is a schematic structural view of the inner ring.
Detailed Description
As shown in fig. 1-4, a valve seat comprises a rubber sleeve 1 and an inner ring 2, the rubber sleeve 1 is made of ethylene propylene diene monomer, the rubber sleeve can also be made of nitrile rubber or natural rubber, the rubber sleeve 1 is sleeved on the inner ring 2, the rubber sleeve 1 and the inner ring 2 are combined together by heating and vulcanizing, the rubber sleeve 1 comprises an outer annular portion 11, two end side walls of the outer annular portion 11 are respectively extended with a flanging portion 12, the two flanging portions 12 and the outer annular portion 11 form an i-shaped arrangement, the inner ring 2 comprises a wear-resistant inner annular portion 21, the inner ring 2 is made of polytetrafluoroethylene, a small amount of glass or carbon fiber can be added into the polytetrafluoroethylene material to generate super wear resistance, the inner ring 2 can also be made of polyurethane, the inner ring 2 can also be made of PEEK, PFA or STELLITE, the inner annular portion 21 is fixedly arranged at the inner ring of the outer annular portion 11, two first through holes 22 are symmetrically arranged on the inner circular annular portion 21, the inner side surface of the inner circular annular portion 21 protrudes or is flush with the inner side surface of the outer circular annular portion 11, the inner side surface of the inner circular annular portion 21 is smoothly arranged, the inner circular annular portion 21 is made of polytetrafluoroethylene, and the surface of the inner circular annular portion is smooth.
In the present embodiment, the inner annular portion 21 is located at the middle of the outer annular portion 11, and the inner ring of the outer annular portion 11 is provided with annular guide surfaces 13 on both sides of the inner annular portion 21, respectively.
In the present embodiment, the inner side surface of the inner circular ring portion 21 is extended with an inner boss 23 at a position corresponding to the first through hole 22, the first through hole 22 is disposed through the inner boss 23, and the end surface of the inner boss 23 is provided with a raised surface 231 at the periphery of the first through hole 22.
In this embodiment, the outer side surface of the inner circular ring portion 21 extends to form an outer boss 24 corresponding to the first through hole 22, the inner end diameter of the outer boss 24 is larger than the outer end diameter, the first through hole 22 penetrates through the outer boss 24, and the outer circular ring portion 11 is provided with a second through hole 14 corresponding to the first through hole 22.
In the present embodiment, the outer sides of the two flanging parts 12 are further respectively provided with an annular flat surface 121, the annular flat surface 121 is connected with the annular guide surface 13, the end positions of the outer sides of the two flanging parts 12 are further respectively provided with an annular convex surface 122, the annular flat surface 121 is connected with the annular convex surface 122 through an annular inclined surface 123, and the width of the two annular convex surfaces 122 is greater than the width of the two annular flat surfaces 121.
In this embodiment, the inner sides of the two flanged portions 12 are respectively provided with an inner flange 124, the inner flanges 124 are arranged in an inverted triangle, and the distance between the outer ends of the two opposite inner flanges 124 is smaller than the distance between the inner ends.
The above embodiment is only one of the preferred embodiments of the present invention, and the general changes and substitutions performed by those skilled in the art within the technical scope of the present invention are included in the protection scope of the present invention.
Claims (7)
1. A valve seat, characterized by: including rubber sleeve and inner circle, rubber sleeve overcoat in the inner circle, the rubber sleeve include outer ring shape portion, the both ends lateral wall of outer ring shape portion extends respectively has turn-ups portion, and two turn-ups portions and outer ring shape portion constitute the setting of I shape, the inner circle includes wear-resisting interior annular portion, and the fixed inner circle department that sets up in outer ring shape portion of interior annular portion, the symmetry is provided with two first through-holes in the interior annular portion, and the medial surface of interior annular portion is outstanding or flushes in the medial surface of outer ring shape portion, and the medial surface of interior annular portion sets up smoothly.
2. A valve seat according to claim 1, wherein: the inner circular part is positioned in the middle of the outer circular part, and the inner ring of the outer circular part is respectively provided with annular guide surfaces at two sides of the inner circular part.
3. A valve seat according to claim 1 or 2, wherein: the inner side surface of the inner circular ring-shaped part is provided with an inner boss in an extending mode corresponding to the first through hole, the first through hole penetrates through the inner boss, and the periphery of the first through hole is provided with a protruding surface on the end surface of the inner boss.
4. A valve seat according to claim 1 or 2, wherein: the outer side face of the inner circular ring-shaped portion extends to form an outer boss corresponding to the first through hole, the inner end diameter of the outer boss is larger than the outer end diameter, the first through hole penetrates through the outer boss, and the outer circular ring-shaped portion is provided with a second through hole corresponding to the first through hole.
5. A valve seat according to claim 1 or 2, wherein: the outer sides of the two flanging parts are respectively provided with an annular plane, the annular planes are connected with the annular guide surfaces, the end parts of the outer sides of the two flanging parts are respectively provided with an annular convex surface, the annular planes are connected with the annular convex surfaces through annular inclined planes, and the width of the two annular convex surfaces is larger than that of the two annular planes.
6. A valve seat according to claim 1, wherein: the inner sides of the two flanging parts are respectively provided with an inner flanging which is arranged in an inverted triangle, and the distance between the outer ends of the two opposite inner flanging is smaller than that between the inner ends.
7. A valve seat according to claim 1 or 2, wherein: the inner ring is made of polytetrafluoroethylene, and the rubber sleeve is made of ethylene propylene diene monomer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022034289.2U CN212297666U (en) | 2020-09-16 | 2020-09-16 | Valve seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022034289.2U CN212297666U (en) | 2020-09-16 | 2020-09-16 | Valve seat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212297666U true CN212297666U (en) | 2021-01-05 |
Family
ID=73934955
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022034289.2U Active CN212297666U (en) | 2020-09-16 | 2020-09-16 | Valve seat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212297666U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112066016A (en) * | 2020-09-16 | 2020-12-11 | 德清三盛氟塑科技有限公司 | Valve seat |
-
2020
- 2020-09-16 CN CN202022034289.2U patent/CN212297666U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112066016A (en) * | 2020-09-16 | 2020-12-11 | 德清三盛氟塑科技有限公司 | Valve seat |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN212297666U (en) | Valve seat | |
| CN210128090U (en) | Gate valve disk seat and use its sword type gate valve | |
| CN112066016A (en) | Valve seat | |
| CN213017778U (en) | Valve seat | |
| CN210461726U (en) | Center line butterfly valve plate assembly and center line butterfly valve | |
| CN211449768U (en) | Ultrahigh-pressure corrosion-resistant self-lubricating check valve | |
| CN220706431U (en) | Strong-tightness butterfly valve capable of avoiding abrasion and corrosion | |
| CN108591518B (en) | Double positioning ball valve | |
| CN209654624U (en) | Three eccentricity hard seal butterfly valve | |
| CN220060556U (en) | Bracket-free spin valve | |
| CN207634725U (en) | A kind of anti-wear gate valve | |
| CN219242923U (en) | Water mixing type flexible rubber joint | |
| CN217003123U (en) | Streamline butterfly valve | |
| CN218992416U (en) | Large-caliber ball valve capable of preventing cracking | |
| CN220540330U (en) | Butterfly valve with sealing ring replaced without disassembly | |
| CN216742885U (en) | Butterfly plate with good stability for handle butterfly valve | |
| CN220688067U (en) | Hard seal telescopic butterfly valve | |
| CN221221501U (en) | Split type metal soft seal ball valve | |
| CN220646799U (en) | High stability butterfly valve | |
| CN217762164U (en) | Conjoined ball valve | |
| CN212986076U (en) | Double-eccentric high-performance butterfly valve | |
| CN216200767U (en) | High-sealing ball valve | |
| CN201093095Y (en) | Novel electromagnetic valve | |
| CN221121003U (en) | Wear-resistant ball valve | |
| CN219472767U (en) | Valve seat with impact-resistant sealing surface |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |