CN218625452U - Butterfly valve with rubber lining - Google Patents
Butterfly valve with rubber lining Download PDFInfo
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- CN218625452U CN218625452U CN202223098594.3U CN202223098594U CN218625452U CN 218625452 U CN218625452 U CN 218625452U CN 202223098594 U CN202223098594 U CN 202223098594U CN 218625452 U CN218625452 U CN 218625452U
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- 238000007789 sealing Methods 0.000 claims description 13
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 210000000664 rectum Anatomy 0.000 abstract description 2
- 239000013013 elastic material Substances 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 230000002421 anti-septic effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003034 coal gas Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000003915 liquefied petroleum gas Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000009972 noncorrosive effect Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Abstract
The utility model provides a lining rubber butterfly valve, it makes the passageway of rubber valve seat be full latus rectum structure, has guaranteed the flow area of valve, and sealed closely reliable, has avoided valve body contact medium, and has ensured the life of whole butterfly valve. It includes: a valve body including a passage hole for arranging a valve; a valve stem; a cylinder; a positioner; and a pressure reducing valve; a connecting support is convexly arranged at the radial position of the valve body, which is used for being connected with the air cylinder, the air cylinder is fixedly arranged at one end of the connecting support, which is far away from the passage hole, a valve plate and a rubber valve seat are arranged in the valve body, the valve body comprises an upper shaft hole and a lower shaft hole, and the valve rod sequentially penetrates through the upper shaft hole, the valve seat, the valve plate and the lower shaft hole; it is characterized in that; the rubber valve seat is embedded in the channel hole of the valve body, the center of the rubber valve seat is provided with a valve hole, the middle of the valve plate is provided with a shaft hole, and the valve rod penetrates through the shaft hole in the valve plate and is tightly connected with the valve plate through a fixing pin.
Description
Priority declaration
The application claims priority to the "rubber-lined butterfly valve" with the Chinese patent application No. 2022211314303 and the application date of 2022, 05 and 12.
Technical Field
The utility model relates to a cross the technical field of butterfly valve structure, specifically be lining rubber butterfly valve.
Background
The butterfly valve with rubber lining is characterized in that a rubber lining ring is arranged between the closing member and the valve body, and compared with the traditional butterfly valve, the butterfly valve has the advantages of light operation, small opening and closing moment, good sealing performance and long service life, so that the butterfly valve is widely applied to pipelines for conveying various corrosive and non-corrosive fluid media in engineering systems such as producer furnaces, coal gas, natural gas, liquefied petroleum gas, city gas, cold and hot air, chemical smelting, power generation, environmental protection and the like, and is used for regulating and cutting the flow of the media. The existing butterfly valve with rubber lining has the following defects: 1) The valve rod and the rubber lining ring are in interference fit, the contact surface of the valve rod and the rubber lining ring is wide, so that the valve rod is difficult to install, and the closing member is difficult to open and close; 2) The valve rod directly contacts with the valve body, so that the opening and closing torque of the closing member is large, the valve rod is easy to damage, and the service life of the rubber-lined butterfly valve is short.
Disclosure of Invention
To the above problem, the utility model provides a rubber lining butterfly valve, its passageway that makes the rubber valve seat has guaranteed the flow area of valve for full latus rectum structure, and sealed closely reliable, has avoided valve body contact medium, and has ensured the life of whole butterfly valve.
Rubber-lined butterfly valve, it includes:
a valve body including a passage hole for arranging a valve;
a valve stem;
a cylinder;
a positioner;
and a pressure reducing valve;
a connecting support is convexly arranged at the radial position of the valve body, which is used for being connected with the air cylinder, one end of the connecting support, which is far away from the channel hole, is fixedly provided with the air cylinder, a valve plate and a rubber valve seat are placed in the valve body, the valve body comprises an upper shaft hole and a lower shaft hole, and the valve rod sequentially penetrates through the upper shaft hole, the rubber valve seat, the valve plate and the lower shaft hole;
the valve is characterized in that the rubber valve seat is embedded in a channel hole of the valve body, a valve hole is formed in the center of the rubber valve seat, an axle hole is formed in the middle of the valve plate, the valve rod penetrates through the axle hole of the valve plate and is tightly connected with the valve plate through a fixing pin, and the shape of a panel of the valve plate is arranged in a mode of copying the shape of the valve hole;
the upper surface and the lower surface of the valve plate, which are in contact with the rubber valve seat, are respectively sleeved with an O-shaped ring;
the valve body is provided with a through hole corresponding to the valve rod, the upper end of the valve rod corresponding to the through hole of the valve body is provided with a first sealing ring, a first shaft sleeve and a second shaft sleeve which are arranged at intervals from top to bottom in sequence, the lower end of the valve rod corresponding to the through hole of the valve body is provided with a third shaft sleeve, and the bottom of the through hole is covered with a bottom cover.
It is further characterized in that:
the contact part of the valve plate and the valve rod is provided with an inner concave clearance groove, and the inner concave clearance groove enables the plate surface of the valve plate to be deformed after being extruded by pressure;
the connecting shaft of the air cylinder is connected with the driving end of the valve rod through a clamping block;
the valve plate is made of elastic materials;
and a proper adjusting gap is reserved between the rubber valve seat and the valve body connecting surface relative to the peripheral area of the valve rod.
After the utility model is adopted, the valve plate structure is fixedly sleeved with the working section of the valve rod and is connected with the valve rod into an integral structure through the positioning pin, the panel of the valve plate is arranged in the shape of the valve hole in a copying way, so that the passage of the rubber valve seat is of a full-diameter structure, the flow area of the valve is ensured, and the positions of the valve rod, which correspond to the upper part and the lower part of the rubber valve seat, are respectively sleeved with the O-shaped rings; the valve body is provided with a through hole corresponding to the valve rod, the upper end of the valve rod corresponding to the through hole of the valve body is provided with a first sealing ring, a first shaft sleeve and a second shaft sleeve which are arranged at intervals from top to bottom in sequence, the lower end of the valve rod corresponding to the through hole of the valve body is provided with a third shaft sleeve, and the bottom of the through hole is covered with a bottom cover, so that the sealing is tight and reliable, the valve body is prevented from contacting with a medium, and the service life of the whole butterfly valve is ensured.
Drawings
Fig. 1 is a schematic front view structure diagram of the present invention;
FIG. 2 is a schematic cross-sectional view of the structure of FIG. 1;
FIG. 3 is an enlarged view of a portion of FIG. 2;
the names corresponding to the sequence numbers in the figure are as follows:
the valve comprises a valve body 10, a valve rod 20, a working section 21, a cylinder 30, a positioner 40, a pressure reducing valve 50, a connecting bracket 60, a rubber valve seat 70, a valve hole 71, an adjusting gap 72, a valve plate structure 80, a panel 81, an inner concave gap groove 82, a fixing pin 90, an O-shaped ring 100, a first sealing ring 110, a first shaft sleeve 120, a second shaft sleeve 130, a third shaft sleeve 140, a bottom cover 150 and a clamping block 160.
Detailed Description
The rubber-lined butterfly valve is shown in figures 1-3: it includes valve body 10, valve stem 20, air cylinder 30, locator 40, and relief valve 50; the valve body 10 includes a passage hole 11 for arranging a valve;
a connecting support 60 is convexly arranged at the radial position of the valve body 10, which is used for being connected with the air cylinder, one end of the connecting support 60, which is far away from the passage hole 11, is fixedly provided with the air cylinder 30, a connecting shaft 31 of the air cylinder 30 is fixedly connected with a driving end of the valve rod 20, and the other end of the valve rod 20 extends into the passage hole 11;
the valve structure further comprises a rubber valve seat 70 and a valve plate 80, wherein the rubber valve seat 70 is embedded in the channel hole 11 of the valve body 10, a valve hole 71 is formed in the center of the rubber valve seat 70, a shaft hole is formed in the middle of the valve plate 80, the valve rod 20 penetrates through the shaft hole in the valve plate 80 and is tightly connected with the valve plate through a fixing pin 90, and the panel 81 of the valve plate 80 is arranged in a shape which is similar to the shape of the valve hole 71;
the upper and lower surfaces of the valve plate 80, which are in contact with the rubber valve seat 70, are respectively sleeved with O-rings 100;
the valve body 10 is provided with a through hole corresponding to the valve rod 20, the upper end of the valve rod 20 corresponding to the through hole of the valve body 10 is sequentially provided with a first sealing ring 110, a first shaft sleeve 120 and a second shaft sleeve 130 which are arranged at intervals from top to bottom, the lower end of the valve rod 20 corresponding to the through hole of the valve body 10 is provided with a third shaft sleeve 140, and the bottom of the through hole is covered with a bottom cover 150.
In specific implementation, the contact part of the valve plate 80 and the valve rod 70 is provided with an inner concave clearance groove 82, and the inner concave clearance groove 82 enables the plate surface 82 of the valve plate to have space deformation after being pressed by pressure;
the lower connecting shaft 31 of the cylinder 30 is coaxially connected with the driving end of the valve rod 20 through a clamping block 160;
the valve plate structure 80 is made of elastic material;
the rubber valve seat 70 and the valve body 10 have a gap 72 between the connection surface and the outer peripheral region of the valve stem 20, which is appropriately adjusted, so that the rubber valve 70 can be displaced sideways when the rubber valve 70 is compressed after the rubber-lined butterfly valve is connected to the pipe, and the rubber valve seat 70 is not crushed.
The whole working process comprises the following steps: the positioner 40 receives a 4-20 mA direct current signal to control air delivered to the air cylinder 30, the pressure is increased to push the piston to overcome the spring force so as to rotate the connecting shaft 31, the connecting shaft 31 is connected with the valve rod 20 by the clamping block 160, so that the valve rod 20 rotates along with the connecting shaft 31, the valve rod 20 is connected with the valve plate 80 by the fixing pin 90, and the integral rotation of the valve plate 80 is realized; when no signal is provided, the cylinder 30 closes the valve by the elastic force of the spring return.
The beneficial effects are as follows: in order to achieve the effect of easy sealing, the traditional rubber-lined butterfly valve has the advantages that the passage of the rubber valve seat is generally smaller than the nominal caliber, and the passage of the rubber valve seat in the utility model is designed into a full-bore structure, thereby ensuring the flow area of the valve and reducing the flow resistance when fluid passes through the valve; the advanced multiple sealing structure avoids the valve body from contacting with a medium, and zero leakage of the whole valve is realized; the upper part and the lower part of the valve rod are provided with shaft sleeves, so that the position of the valve rod on the valve body is relatively fixed, and friction is reduced; the two ends of the valve rod are provided with the panels of the valve plates, so that the whole valve is higher in sealing performance, lower in torque, larger in flow and smaller in flow resistance, can be used in two directions, has a two-way sealing function, is not limited by the flow direction of a medium during installation, is not influenced by spatial positions, and can be installed in any direction; when the rubber-lined butterfly valve is connected with the pipeline flange, no gasket is required to be additionally arranged, and the possibility of leakage can be prevented due to the corrugated labyrinth seal of the end face of the rubber valve seat; all parts are subjected to antiseptic treatment, and the method is suitable for various complex working environments; the driving device can be installed in multiple stations (rotating 90 degrees or 180 degrees), and is convenient for users to use.
The working principle is as follows: the valve plate structure is fixedly sleeved with the working section of the valve rod and connected with the valve rod through the positioning pin to form an integral structure, the panel of the valve plate is arranged in a shape of a valve hole in a copying manner, a channel of the rubber valve seat is of a full-bore structure, the flow area of the valve is ensured, and an inlet and an outlet of the valve rod, which correspond to the positions penetrating through the upper part and the lower part of the rubber valve seat, are respectively sleeved with an O-shaped ring; the valve body is provided with a through hole corresponding to the valve rod, the upper end of the valve rod corresponding to the through hole of the valve body is provided with a first sealing ring, a first shaft sleeve and a second shaft sleeve which are arranged at intervals from top to bottom in sequence, the lower end of the valve rod corresponding to the through hole of the valve body is provided with a third shaft sleeve, and the bottom of the through hole is covered with a bottom cover, so that the sealing is tight and reliable, the valve body is prevented from contacting with a medium, and the service life of the whole butterfly valve is ensured.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present specification describes embodiments, not every embodiment includes only a single embodiment, and such description is for clarity purposes only, and it is to be understood that all embodiments may be combined as appropriate by one of ordinary skill in the art to form other embodiments as will be apparent to those of skill in the art from the description herein.
Claims (4)
1. Rubber-lined butterfly valve, it includes:
a valve body including a passage hole for arranging a valve;
a valve stem;
a cylinder;
a positioner;
and a pressure reducing valve;
a connecting support is convexly arranged at the radial position of the valve body, which is used for being connected with the air cylinder, one end of the connecting support, which is far away from the channel hole, is fixedly provided with the air cylinder, a valve plate and a rubber valve seat are placed in the valve body, the valve body comprises an upper shaft hole and a lower shaft hole, and the valve rod sequentially penetrates through the upper shaft hole, the rubber valve seat, the valve plate and the lower shaft hole;
the valve is characterized in that the rubber valve seat is embedded in a channel hole of the valve body, a valve hole is formed in the center of the rubber valve seat, a shaft hole is formed in the middle of the valve plate, and the valve rod penetrates through the shaft hole of the valve plate and is tightly connected with the valve plate through a fixing pin; the shape of the panel of the valve plate is arranged along the shape of the valve hole;
the upper surface and the lower surface of the valve plate, which are contacted with the rubber valve seat, are respectively sleeved with an O-shaped ring;
the valve body is provided with a through hole corresponding to the valve rod, the upper end of the valve rod corresponding to the through hole of the valve body is provided with a first sealing ring, a first shaft sleeve and a second shaft sleeve which are arranged at intervals from top to bottom in sequence, the lower end of the valve rod corresponding to the through hole of the valve body is provided with a third shaft sleeve, and the bottom of the through hole is covered with a bottom cover.
2. The rubber-lined butterfly valve of claim 1, wherein: the contact part of the valve plate and the valve rod is provided with an inner concave clearance groove.
3. The rubber-lined butterfly valve of claim 1, wherein: and the connecting shaft of the air cylinder is connected with the driving end of the valve rod through a clamping block.
4. The rubber-lined butterfly valve of claim 1, wherein: and a proper adjusting gap is formed between the rubber valve seat and the valve body connecting surface relative to the peripheral area of the valve rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223098594.3U CN218625452U8 (en) | 2022-05-12 | 2022-11-22 | Butterfly valve with rubber lining |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221131430 | 2022-05-12 | ||
| CN2022211314303 | 2022-05-12 | ||
| CN202223098594.3U CN218625452U8 (en) | 2022-05-12 | 2022-11-22 | Butterfly valve with rubber lining |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN218625452U true CN218625452U (en) | 2023-03-14 |
| CN218625452U8 CN218625452U8 (en) | 2023-04-11 |
Family
ID=85936741
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223098594.3U Active CN218625452U8 (en) | 2022-05-12 | 2022-11-22 | Butterfly valve with rubber lining |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218625452U8 (en) |
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2022
- 2022-11-22 CN CN202223098594.3U patent/CN218625452U8/en active Active
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| Publication number | Publication date |
|---|---|
| CN218625452U8 (en) | 2023-04-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CU01 | Correction of utility model |
Correction item: National priority Correct: 202221131430.3 2022.05.12 CN Number: 11-01 Page: The title page Volume: 39 Correction item: National priority Correct: 202221131430.3 2022.05.12 CN Number: 11-01 Volume: 39 |
|
| CU01 | Correction of utility model |