CN219932979U - NBR nitrile rubber valve seat - Google Patents
NBR nitrile rubber valve seat Download PDFInfo
- Publication number
- CN219932979U CN219932979U CN202320393042.0U CN202320393042U CN219932979U CN 219932979 U CN219932979 U CN 219932979U CN 202320393042 U CN202320393042 U CN 202320393042U CN 219932979 U CN219932979 U CN 219932979U
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- CN
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- Prior art keywords
- valve seat
- valve
- water
- seal
- water stopping
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- 229920000459 Nitrile rubber Polymers 0.000 title claims abstract description 33
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 94
- 229920001971 elastomer Polymers 0.000 claims abstract description 58
- 239000005060 rubber Substances 0.000 claims abstract description 58
- 238000007789 sealing Methods 0.000 claims abstract description 55
- 239000000945 filler Substances 0.000 claims description 6
- 230000004888 barrier function Effects 0.000 abstract description 3
- 238000012856 packing Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Lift Valve (AREA)
Abstract
The utility model discloses an NBR (nitrile-butadiene rubber) valve seat which comprises a valve seat body, wherein the valve seat body is arranged in a valve body, the valve seat body is wrapped on the outer side of a valve core, a valve rod is fixedly arranged in the valve core, a valve handle is arranged at the top of the valve rod, a water inlet pipe connecting flange is arranged at one end of the valve body, and a water outlet pipe connecting flange is arranged at the other end of the valve body. The NBR nitrile rubber valve seat, a water stop rubber sleeve forms a first sealing structure between the valve rod and the valve seat body; the second water stop rubber sleeve forms a second sealing structure between the valve rod and the valve seat body; the three water stop rubber sleeves form a third sealing structure between the valve rod and the valve seat body, the three sealing structures form three water stop barriers between the valve rod and the valve seat body, gaps between the valve rod and the valve seat body are blocked, and leakage is avoided at the gaps between the valve rod and the valve seat body.
Description
Technical Field
The utility model relates to the field of butterfly valves, in particular to an NBR nitrile rubber valve seat.
Background
Currently, an electric butterfly valve generally comprises a valve body and an electric device, wherein a valve rod and a valve plate are arranged in the valve body, the upper end of the valve rod extends out of the valve body and is connected with the electric device, and the electric device comprises a motor and a coupler; at present, the existing marine electric butterfly valve is easy to corrode due to the influence of working environment, inconvenient to control, leakage and the like can occur when the electric butterfly valve is used for a long time, and the service life of the butterfly valve is short.
To solve the problems, through searching, the prior art discloses (application number: CN 201110303969.2) a butt clamp type numerical control electric butterfly valve; the valve body is internally provided with a valve rod and a valve plate, and the upper end of the valve rod is connected with an electric device; the electric device comprises a motor and a connecting seat, and the upper end of the valve rod is connected and fixed with the connecting seat of the electric device through a coupler and a screw; a wear-resistant rubber ring is arranged between the valve plate and the sealing surface of the valve body; when the valve rod is in actual use, the valve rod penetrates through the valve seat, the valve rod needs to frequently rotate to drive the valve core to rotate in the valve seat, so that the valve can be opened and closed, the valve rod frequently rotates in the valve seat, the tightness of the valve rod between the valve seats is easily reduced, water in the valve is easily overflowed from a gap between the valve seats, and the valve can leak.
Disclosure of Invention
The utility model aims to provide an NBR nitrile rubber valve seat, which solves the defects in the prior art.
In order to achieve the above-mentioned purpose, provide a NBR nitrile rubber disk seat, including the disk seat body, the disk seat body is installed in the inside of valve body, and the disk seat body parcel is in the outside of case, and the inside fixed mounting of case has the valve rod simultaneously to the valve handle is installed at the top of valve rod, and inlet tube flange is installed to the one end of valve body, and outlet pipe flange is installed to the other end of valve body, the disk seat body comprises sealed, disk seat upper end, disk seat lower extreme and disk seat lower seal four parts on by the disk seat, and disk seat upper end and disk seat upper seal fixed connection, and disk seat lower extreme bottom and disk seat lower seal fixed connection simultaneously, and three water stopping grooves, two water stopping grooves and a water stopping groove have all been seted up to the upside and the downside of valve rod, and the disk seat body is by nitrile rubber preparation.
Preferably, the upper side of the valve rod and the upper end part of the valve seat are in water-stopping sealing through the upper sealing filler of the valve seat, and the lower side of the valve rod and the lower end part of the valve seat are in water-stopping sealing through the lower sealing filler of the valve seat.
Preferably, the upper seal of the valve seat is consistent with the lower seal of the valve seat in composition structure, and the upper seal of the valve seat comprises a three-water-stop rubber sleeve, three sealing rings, an embedded groove, an embedded block, a two-sealing ring, a two-water-stop rubber sleeve and a one-water-stop rubber sleeve.
Preferably, the end parts of the three sealing rings are fixedly connected with the three water-stop rubber sleeves, two sealing rings are arranged on one side of the three sealing rings, and one end, far away from the three sealing rings, of the two sealing rings is fixedly connected with the one water-stop rubber sleeve.
Preferably, the caulking groove is formed in the three sealing rings, the caulking groove is matched with the caulking block in size, meanwhile, the caulking block is clamped in the caulking groove, and the three sealing rings and the two sealing rings are spliced through the annularly arranged caulking groove and the caulking block.
Preferably, the inner side of the two sealing rings is fixedly connected with the two water stop rubber sleeves, the two water stop rubber sleeves are in interference fit with the two water stop tanks, and meanwhile, the two water stop rubber sleeves are clamped in the two water stop tanks.
Preferably, the three water stopping tanks are in interference fit with the three water stopping rubber sleeves, one water stopping tank is in interference fit with one water stopping rubber sleeve, meanwhile, the three water stopping rubber sleeves are clamped in the three water stopping tanks, and one water stopping rubber sleeve is clamped in one water stopping tank.
Compared with the prior art, the utility model has the beneficial effects that: a water stop rubber sleeve forms a first sealing structure between the valve rod and the valve seat body; the second water stop rubber sleeve forms a second sealing structure between the valve rod and the valve seat body; the three water stop rubber sleeves form a third sealing structure between the valve rod and the valve seat body, the three sealing structures form three water stop barriers between the valve rod and the valve seat body, gaps between the valve rod and the valve seat body are blocked, and leakage is avoided at the gaps between the valve rod and the valve seat body.
Drawings
FIG. 1 is a schematic elevational view of the structure of the present utility model;
FIG. 2 is a side view of the structure of the present utility model, FIG. 1;
FIG. 3 is an enlarged schematic view of the upper partial structure of FIG. 1, which is a structural view of the present utility model;
FIG. 4 is a partial schematic view of a valve stem according to the present utility model;
FIG. 5 is a schematic view of a valve seat body according to the present utility model.
Reference numerals in the drawings: 1. a valve handle; 2. a valve body; 3. a valve core; 4. a valve stem; 41. a water stopping groove; 42. a second water stopping groove; 43. a water stopping groove; 5. the water inlet pipe is connected with the flange; 6. a valve seat body; 61. sealing on the valve seat; 610. a water stop rubber sleeve; 611. three sealing rings; 612. a caulking groove; 613. an insert; 614. a second sealing ring; 615. a second water stop rubber sleeve; 616. a water stop rubber sleeve; 62. the upper end of the valve seat; 63. the lower end of the valve seat; 64. the valve seat is sealed under.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-5, the utility model provides an NBR nitrile rubber valve seat, which comprises a valve seat body 6, wherein the valve seat body 6 is arranged in a valve body 2, the valve seat body 6 is wrapped on the outer side of a valve core 3, meanwhile, a valve rod 4 is fixedly arranged in the valve core 3, a valve handle 1 is arranged at the top of the valve rod 4, a water inlet pipe connecting flange 5 is arranged at one end of the valve body 2, a water outlet pipe connecting flange is arranged at the other end of the valve body 2, the valve seat body 6 consists of four parts of a valve seat upper seal 61, a valve seat upper end 62, a valve seat lower end 63 and a valve seat lower seal 64, the upper end of the valve seat upper end 62 is fixedly connected with the valve seat upper seal 61, the bottom of the valve seat lower end 63 is fixedly connected with the valve seat lower seal 64, three water stopping grooves 41, two water stopping grooves 42 and one water stopping groove 43 are respectively arranged on the upper side and the lower side of the valve rod 4, and the valve seat body 6 is made of nitrile rubber.
Working principle: the upper side of the valve rod 4 and the upper end part 62 of the valve seat are sealed by the upper sealing 61 of the valve seat and the upper sealing filler, and the lower side of the valve rod 4 and the lower end part 63 of the valve seat are sealed by the lower sealing 64 of the valve seat and the lower sealing filler;
a water stop rubber sleeve 616 forms a first sealing structure between the valve rod 4 and the valve seat body 6; the two water stop rubber sleeves 615 form a second sealing structure between the valve rod 4 and the valve seat body 6; the three water stop rubber sleeve 610 forms a third sealing structure between the valve rod 4 and the valve seat body 6, the three sealing structures form three water stop barriers between the valve rod 4 and the valve seat body 6, gaps between the valve rod 4 and the valve seat body 6 are blocked, and leakage is avoided at the gaps between the valve rod 4 and the valve seat body 6, so that the situation of leakage is caused.
As a preferred embodiment, the upper side of the valve stem 4 is water-tightly sealed with the upper end 62 of the valve seat by the upper seal 61 of the valve seat and the upper seal packing, and the lower side of the valve stem 4 is water-tightly sealed with the lower end 63 of the valve seat by the lower seal 64 of the valve seat and the lower seal packing.
As shown in fig. 1: the upper side connecting gap between the valve rod 4 and the valve seat body 6 is sealed by the upper valve seat seal 61; the lower connection gap between the valve rod 4 and the valve seat body 6 is sealed by the valve seat lower seal 64.
As a preferred embodiment, the upper valve seat seal 61 and the lower valve seat seal 64 have the same composition, and the upper valve seat seal 61 comprises a three-water stop rubber sleeve 610, a three-way sealing ring 611, an embedded groove 612, an embedded block 613, a two-way sealing ring 614, a two-water stop rubber sleeve 615 and a one-water stop rubber sleeve 616.
As shown in fig. 3: the valve seat upper seal 61 comprises three water stopping structures, namely a three water stopping rubber sleeve 610, a two water stopping rubber sleeve 615 and a one water stopping rubber sleeve 616, and the valve seat lower seal 64 is consistent with the water stopping sealing mechanism of the valve seat upper seal 61.
As a preferred embodiment, the end of the three seal rings 611 is fixedly connected with the three water stop rubber sleeve 610, and two seal rings 614 are installed on one side of the three seal rings 611, and meanwhile, one end of the two seal rings 614 away from the three seal rings 611 is fixedly connected with the one water stop rubber sleeve 616.
As a preferred embodiment, the three seal rings 611 are provided with an embedded groove 612, the embedded groove 612 is matched with the embedded block 613 in size, meanwhile, the embedded block 613 is clamped inside the embedded groove 612, and the three seal rings 611 and the two seal rings 614 are spliced with the embedded block 613 through the embedded groove 612 which is annularly arranged.
As shown in fig. 3: the three-way sealing ring 611 and the two-way sealing ring 614 are spliced through the annular caulking groove 612 and the caulking block 613, so that the three-way sealing ring 611 with serious abrasion can be replaced.
As a preferred embodiment, the inner side of the two sealing rings 614 is fixedly connected with two water stop rubber sleeves 615, the two water stop rubber sleeves 615 are in interference fit with the two water stop grooves 42, and the two water stop rubber sleeves 615 are clamped in the two water stop grooves 42.
As shown in fig. 3: the two water stop rubber sleeves 615 are in interference fit with the two water stop grooves 42, and the two water stop rubber sleeves 615 are fixedly extruded inside the two water stop grooves 42 to form a first seal;
as a preferred embodiment, the three water stop grooves 41 are in interference fit with the three water stop rubber sleeves 610, and one water stop groove 43 is in interference fit with one water stop rubber sleeve 616, meanwhile, the three water stop rubber sleeves 610 are clamped inside the three water stop grooves 41, and one water stop rubber sleeve 616 is clamped inside one water stop groove 43.
As shown in fig. 3: a water stop groove 43 is in interference fit with a water stop rubber sleeve 616, and the water stop rubber sleeve 616 is fixedly extruded inside the water stop groove 43 to form a second seal;
as shown in fig. 3: the three water stop groove 41 is in interference fit with the three water stop rubber sleeve 610, and the three water stop rubber sleeve 610 is fixedly extruded inside the three water stop groove 41 to form a third seal.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a NBR nitrile rubber disk seat, includes disk seat body (6), and disk seat body (6) are installed in the inside of valve body (2), and disk seat body (6) parcel is in the outside of case (3), and case (3) inside fixed mounting has valve rod (4) simultaneously to valve handle (1) are installed at the top of valve rod (4), and inlet tube flange (5) are installed to the one end of valve body (2), and outlet pipe flange is installed to the other end of valve body (2), its characterized in that: the valve seat body (6) is formed by four parts of an upper valve seat seal (61), an upper valve seat end (62), a lower valve seat end (63) and a lower valve seat seal (64), the upper end of the upper valve seat end (62) is fixedly connected with the upper valve seat seal (61), the bottom of the lower valve seat end (63) is fixedly connected with the lower valve seat seal (64), three water stopping grooves (41), two water stopping grooves (42) and one water stopping groove (43) are formed in the upper side and the lower side of the valve rod (4), and the valve seat body (6) is made of nitrile rubber.
2. An NBR nitrile rubber valve seat as defined in claim 1, wherein: the upper side of the valve rod (4) and the upper end part (62) of the valve seat are sealed by an upper valve seat seal (61) and an upper sealing filler, and the lower side of the valve rod (4) and the lower end part (63) of the valve seat are sealed by a lower valve seat seal (64) and a lower sealing filler.
3. An NBR nitrile rubber valve seat as defined in claim 1, wherein: the valve seat upper seal (61) and the valve seat lower seal (64) have the same composition structure, and the valve seat upper seal (61) comprises a three-water-stop rubber sleeve (610), a three-channel sealing ring (611), an embedded groove (612), an embedded block (613), a two-channel sealing ring (614), a two-water-stop rubber sleeve (615) and a one-water-stop rubber sleeve (616).
4. A NBR nitrile rubber valve seat as defined in claim 3, further characterized by: the end of the three sealing rings (611) is fixedly connected with the three water-stop rubber sleeve (610), two sealing rings (614) are arranged on one side of the three sealing rings (611), and one end, far away from the three sealing rings (611), of the two sealing rings (614) is fixedly connected with the one water-stop rubber sleeve (616).
5. An NBR nitrile rubber valve seat as defined in claim 4, wherein: the inside of three sealing rings (611) is provided with an embedded groove (612), the embedded groove (612) is matched with the embedded block (613) in size, meanwhile, the embedded block (613) is clamped inside the embedded groove (612), and the three sealing rings (611) and the two sealing rings (614) are spliced through the embedded groove (612) and the embedded block (613) which are annularly arranged.
6. A NBR nitrile rubber valve seat as defined in claim 3, further characterized by: the inner side of the two sealing rings (614) is fixedly connected with the two water stop rubber sleeves (615), the two water stop rubber sleeves (615) are in interference fit with the two water stop grooves (42), and meanwhile the two water stop rubber sleeves (615) are clamped in the two water stop grooves (42).
7. An NBR nitrile rubber valve seat as defined in claim 1, wherein: the three water stopping tanks (41) are in interference fit with the three water stopping rubber sleeves (610), one water stopping tank (43) is in interference fit with one water stopping rubber sleeve (616), meanwhile, the three water stopping rubber sleeves (610) are clamped inside the three water stopping tanks (41), and one water stopping rubber sleeve (616) is clamped inside the one water stopping tank (43).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320393042.0U CN219932979U (en) | 2023-07-24 | 2023-07-24 | NBR nitrile rubber valve seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320393042.0U CN219932979U (en) | 2023-07-24 | 2023-07-24 | NBR nitrile rubber valve seat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219932979U true CN219932979U (en) | 2023-10-31 |
Family
ID=88495866
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320393042.0U Active CN219932979U (en) | 2023-07-24 | 2023-07-24 | NBR nitrile rubber valve seat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219932979U (en) |
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2023
- 2023-07-24 CN CN202320393042.0U patent/CN219932979U/en active Active
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |