CN210135248U - Better butterfly valve of leakproofness - Google Patents
Better butterfly valve of leakproofness Download PDFInfo
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- CN210135248U CN210135248U CN201920925837.5U CN201920925837U CN210135248U CN 210135248 U CN210135248 U CN 210135248U CN 201920925837 U CN201920925837 U CN 201920925837U CN 210135248 U CN210135248 U CN 210135248U
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- butterfly valve
- shaft sleeve
- valve rod
- axle sleeve
- butterfly
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Abstract
The utility model discloses a better butterfly valve of leakproofness, this internal valve rod that runs through its inside that is equipped with of butterfly valve, the one end and the handle of valve rod correspond and are connected, the other end and the butterfly valve board of valve rod correspond and are connected, the butterfly valve board sets up the inside at the butterfly valve body, axle sleeve and lower axle sleeve have been cup jointed in the outer wall correspondence of valve rod, go up the upper portion junction of axle sleeve setting at valve rod and butterfly valve plate, the lower part junction of axle sleeve setting at valve rod and butterfly valve plate down, clearance department correspondence between butterfly valve body and butterfly valve board is equipped with seal ring, seal ring's upper end corresponds with the outer wall of last axle sleeve and is connected, seal ring's lower extreme corresponds with the outer wall of lower axle sleeve and. The utility model discloses an it is sealed that the cooperation that has increased the relevant position to go up axle sleeve O type circle, lower axle sleeve O type circle, seal ring, go up valve rod O type circle, lower valve rod O type circle, can effectual assurance medium when passing through or cutting, the medium can not reveal completely and can not lead to corrosion damage with middle valve rod (metalwork) contact.
Description
Technical Field
The utility model belongs to the technical field of the valve equipment and specifically relates to a better butterfly valve of leakproofness.
Background
The valve can be used for controlling the flow of various types of fluids such as air, water, steam, various corrosive media, slurry, oil products, liquid metal, radioactive media and the like, and mainly plays a role in cutting off and throttling on a pipeline. The opening and closing piece of the butterfly valve is a disc-shaped butterfly plate and rotates around the axis of the butterfly plate in the valve body, so that the opening and closing or adjusting purpose is achieved. The butterfly valve has the advantages of simple structure, small volume, light weight, less material consumption, small installation size, small driving moment, simple and convenient operation and rapidness, and also has good flow regulation function and sealing closing characteristic, is one of the fastest valve varieties developed in recent decades, is very widely used, continues to expand the variety and the number of the butterfly valve, develops towards high temperature, high pressure, large caliber, high sealing property, long service life, excellent regulation characteristic and one-valve multifunction, and achieves higher levels of reliability and other performance indexes. The structure principle of the butterfly valve is particularly suitable for manufacturing large-diameter valves, and the commonly used butterfly valve comprises a wafer type butterfly valve and a flange type butterfly valve. The flange type butterfly valve is characterized in that a valve is connected between two pipeline flanges through a double-headed bolt, flanges are arranged on the valve, and the flanges at two ends of the valve are connected to the pipeline flanges through bolts in the using process. The existing butterfly valve structure in the market only comprises a valve rod, a butterfly valve plate and a sealing washer which are combined with each other to form sealing, the matching part of the valve rod, the valve plate and the butterfly valve body can leak under the action of fluid pressure, and a metal valve rod can be corroded in an acid-base corrosion medium environment; when the tight fit of the valve plate and the sealing washer is solved, the switch is not in place. Therefore, a butterfly valve with good sealing performance needs to be designed.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects in the prior art, a butterfly valve with good sealing performance is provided.
The utility model discloses a following scheme realizes:
the utility model provides a better butterfly valve of leakproofness, includes the butterfly valve body this internal valve rod that runs through its inside that is equipped with of butterfly valve, the one end and the handle of valve rod correspond and are connected, the other end and the butterfly valve plate of valve rod correspond and are connected, the butterfly valve plate sets up the inside at the butterfly valve body the outer wall correspondence of valve rod has cup jointed upper shaft sleeve and lower axle sleeve, upper shaft sleeve sets up the upper portion junction at valve rod and butterfly valve plate, the axle sleeve sets up the lower part junction at valve rod and butterfly valve plate down clearance department between butterfly valve body and the butterfly valve plate corresponds and is equipped with seal ring, seal ring's upper end corresponds with the outer wall of upper shaft sleeve and is connected, seal ring's lower extreme corresponds with the outer wall of lower axle sleeve and is connected.
And an upper valve rod O-shaped ring is correspondingly arranged at the joint of the upper shaft sleeve and the valve rod, and a lower valve rod O-shaped ring is correspondingly arranged at the joint of the lower shaft sleeve and the valve rod.
The outer wall of the valve rod is correspondingly sleeved with a top shaft sleeve, the lower part of the top shaft sleeve is correspondingly connected with the top of the upper shaft sleeve, and the top of the top shaft sleeve is correspondingly connected with the handle.
The outer wall of the upper shaft sleeve is correspondingly provided with an upper shaft sleeve O-shaped ring, and the outer wall of the lower shaft sleeve is correspondingly provided with a lower shaft sleeve O-shaped ring.
The upper shaft sleeve O-shaped ring comprises a first upper shaft sleeve O-shaped ring arranged between the upper shaft sleeve and the butterfly valve body and a second upper shaft sleeve O-shaped ring arranged between the upper shaft sleeve and the butterfly valve plate;
the lower shaft sleeve O-shaped ring comprises a first lower shaft sleeve O-shaped ring arranged between the lower shaft sleeve and the butterfly valve body and a second lower shaft sleeve O-shaped ring arranged between the lower shaft sleeve and the butterfly valve body.
The handle and the valve rod are correspondingly detachably connected through a fixing screw.
The utility model has the advantages that:
the utility model relates to a better butterfly valve of leakproofness has increased the cooperation at relevant position through last axle sleeve, lower axle sleeve and last axle sleeve O type circle, lower axle sleeve O type circle, seal ring, last valve rod O type circle, lower valve rod O type circle and is sealed, can effectual assurance medium when passing through or cutting, the medium can not reveal completely and can not lead to corrosion damage with middle valve rod (metalwork) contact.
Drawings
Fig. 1 is a schematic structural view of the butterfly valve with better sealing performance of the present invention.
Fig. 2 is a detailed structural view of the butterfly valve plate periphery of the present invention.
In the figure: 1 is the valve rod, 21 is last valve rod O type circle, 22 is lower valve rod O type circle, 3 is the upper shaft cover, 4 is lower shaft cover, 5 is the top axle sleeve, 61 is upper shaft cover O type circle, 611 is first upper shaft cover O type circle, 612 is second upper shaft cover O type circle, 62 is lower shaft cover O type circle, 621 is first lower shaft cover O type circle, 622 is second lower shaft cover O type circle, 7 is the butterfly valve body, 8 is the butterfly valve board, 9 is seal ring, 10 is the handle, 11 is the set screw.
Detailed Description
The preferred embodiments of the present invention will be further described with reference to the accompanying drawings in which:
the utility model provides a better butterfly valve of leakproofness, includes butterfly valve body 7 be equipped with in the butterfly valve body 7 and run through its inside valve rod 1, the one end and the handle 10 of valve rod 1 correspond and are connected, the other end and the butterfly valve plate 8 of valve rod 1 correspond and are connected, butterfly valve plate 8 sets up the inside at butterfly valve body 7. The handle 10 and the valve rod 1 are correspondingly detachably connected through a fixing screw 11. In practical application, the handle of the handle 10 is held to rotate, the butterfly valve plate is driven by the valve rod to rotate in the butterfly valve body, and therefore opening and closing of the pipeline are controlled.
The outer wall of valve rod 1 corresponds and has cup jointed last axle sleeve 3 and lower axle sleeve 4, it sets up in the upper portion junction of valve rod 1 and butterfly valve board 8 to go up axle sleeve 3, axle sleeve 4 sets up in the lower part junction of valve rod 1 and butterfly valve board 8 the clearance department between butterfly valve body 7 and the butterfly valve board 8 corresponds and is equipped with seal ring 9, seal ring 9's upper end corresponds with the outer wall of going up axle sleeve 3 and is connected, seal ring 9's lower extreme corresponds with the outer wall of lower axle sleeve 4 and is connected. The sealing washer forms a seal with the upper shaft sleeve, the lower shaft sleeve, the butterfly valve body and the butterfly valve plate respectively, and the butterfly valve ensures the seal due to the matching of the butterfly valve plate and the butterfly valve washer in the opening and closing process, so that the leakage between the butterfly valve washer and the butterfly valve body is avoided. Through the cooperation of valve rod and butterfly valve body, butterfly valve board, seal ring, improve the leakage hidden danger of butterfly valve, promote the switch torsion of butterfly valve and guarantee that the switch targets in place.
An upper valve rod O-shaped ring 21 is correspondingly arranged at the joint of the upper shaft sleeve 3 and the valve rod 1, and a lower valve rod O-shaped ring 22 is correspondingly arranged at the joint of the lower shaft sleeve 4 and the valve rod 1. The upper valve rod O-shaped ring 21 ensures the sealing property between the upper shaft sleeve 3 and the valve rod 1, and the lower valve rod O-shaped ring 22 ensures the sealing property between the lower shaft sleeve 4 and the valve rod 1. Because the butterfly valve plate, the upper shaft sleeve, the lower shaft sleeve and the O-shaped ring of the shaft sleeve mutually form a sealed closed loop, the leakage of a medium to the valve rod is avoided.
The outer wall of the valve rod 1 is further sleeved with a top shaft sleeve 5 correspondingly, the lower portion of the top shaft sleeve 5 is connected with the top of the upper shaft sleeve 3 correspondingly, and the top of the top shaft sleeve 5 is connected with the handle 10 correspondingly.
An upper shaft sleeve O-shaped ring 61 is correspondingly arranged on the outer wall of the upper shaft sleeve 3, and a lower shaft sleeve O-shaped ring 62 is correspondingly arranged on the outer wall of the lower shaft sleeve 4. The sealing degree of the outer walls of the upper shaft sleeve 3 and the lower shaft sleeve 4 is increased through the upper shaft sleeve O-shaped ring 61 and the lower shaft sleeve O-shaped ring 62, and the medium is prevented from escaping.
The upper shaft sleeve O-ring 61 comprises a first upper shaft sleeve O-ring 611 arranged between the upper shaft sleeve 3 and the butterfly valve body 7 and a second upper shaft sleeve O-ring 612 arranged between the upper shaft sleeve 3 and the butterfly valve plate 8; the first upper shaft sleeve O-ring 611 and the second upper shaft sleeve O-ring ensure the sealing between the upper shaft sleeve and the butterfly valve body and the butterfly valve plate respectively.
The lower boss O-ring 62 includes a first lower boss O-ring 621 provided between the lower boss 4 and the butterfly valve body 7 and a second lower boss O-ring 622 provided between the lower boss 4 and the butterfly valve body 7. The first lower shaft sleeve O-ring 621 and the second lower shaft sleeve O-ring 622 ensure the sealing between the lower shaft sleeve and the butterfly valve body 7, respectively.
The utility model discloses an upper valve rod O type circle, lower valve rod O type circle, upper shaft sleeve O type circle, first upper shaft sleeve O type circle, second upper shaft sleeve O type circle, lower shaft sleeve O type circle, first lower shaft sleeve O type circle, second lower shaft sleeve O type circle that set up in the butterfly valve constitute seal structure, can be effectual when guaranteeing that the medium passes through or cuts in the butterfly valve of this application, the medium can not reveal at all and can not contact with middle valve rod (generally the metalwork) and lead to corroding the damage; and adopt this application technical scheme can effectively promote this application's prevention of seepage effect.
According to GB27726-2011, a shell internal pressure resistance test is carried out on the butterfly valve with good sealing performance, at room temperature, the test water pressure is respectively 3.4Mpa, 1.55Mpa and 1.15Mpa, the test time is 15 seconds to 1 hour, and the test result shows that the butterfly valve with good sealing performance can not generate medium leakage under the conditions of half-opening, closing and the like of the valve.
Although the invention has been shown and described in detail with respect to the preferred embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (6)
1. The utility model provides a better butterfly valve of leakproofness, includes butterfly valve body (7) be equipped with in butterfly valve body (7) and run through its inside valve rod (1), the one end and handle (10) of valve rod (1) correspond and are connected, the other end and the butterfly valve plate (8) of valve rod (1) correspond and are connected, butterfly valve plate (8) set up the inside at butterfly valve body (7), its characterized in that: the outer wall of valve rod (1) corresponds and has cup jointed last axle sleeve (3) and lower axle sleeve (4), it sets up the upper portion junction at valve rod (1) and butterfly valve plate (8) to go up axle sleeve (3), lower axle sleeve (4) set up the lower part junction at valve rod (1) and butterfly valve plate (8) the clearance department between butterfly valve body (7) and butterfly valve plate (8) corresponds and is equipped with seal ring (9), the upper end of seal ring (9) corresponds with the outer wall of last axle sleeve (3) and is connected, the lower extreme of seal ring (9) corresponds with the outer wall of lower axle sleeve (4) and is connected.
2. The butterfly valve with better sealing performance according to claim 1, characterized in that: an upper valve rod O-shaped ring (21) is correspondingly arranged at the joint of the upper shaft sleeve (3) and the valve rod (1), and a lower valve rod O-shaped ring (22) is correspondingly arranged at the joint of the lower shaft sleeve (4) and the valve rod (1).
3. The butterfly valve with better sealing performance according to claim 1, characterized in that: the outer wall of the valve rod (1) is further correspondingly sleeved with a top shaft sleeve (5), the lower portion of the top shaft sleeve (5) is correspondingly connected with the top of the upper shaft sleeve (3), and the top of the top shaft sleeve (5) is correspondingly connected with the handle (10).
4. The butterfly valve with better sealing performance according to claim 1, characterized in that: an upper shaft sleeve O-shaped ring (61) is correspondingly arranged on the outer wall of the upper shaft sleeve (3), and a lower shaft sleeve O-shaped ring (62) is correspondingly arranged on the outer wall of the lower shaft sleeve (4).
5. The butterfly valve with better sealing performance according to claim 4, characterized in that: the upper shaft sleeve O-shaped ring (61) comprises a first upper shaft sleeve O-shaped ring (611) arranged between the upper shaft sleeve (3) and the butterfly valve body (7) and a second upper shaft sleeve O-shaped ring (612) arranged between the upper shaft sleeve (3) and the butterfly valve plate (8);
the lower shaft sleeve O-shaped ring (62) comprises a first lower shaft sleeve O-shaped ring (621) arranged between the lower shaft sleeve (4) and the butterfly valve body (7) and a second lower shaft sleeve O-shaped ring (622) arranged between the lower shaft sleeve (4) and the butterfly valve body (7).
6. The butterfly valve with better sealing performance according to claim 1, characterized in that: the handle (10) and the valve rod (1) are correspondingly detachably connected through a fixing screw (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920925837.5U CN210135248U (en) | 2019-06-19 | 2019-06-19 | Better butterfly valve of leakproofness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920925837.5U CN210135248U (en) | 2019-06-19 | 2019-06-19 | Better butterfly valve of leakproofness |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210135248U true CN210135248U (en) | 2020-03-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920925837.5U Active CN210135248U (en) | 2019-06-19 | 2019-06-19 | Better butterfly valve of leakproofness |
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| Country | Link |
|---|---|
| CN (1) | CN210135248U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110131424A (en) * | 2019-06-19 | 2019-08-16 | 厦门科恒塑胶有限公司 | A kind of preferable butterfly valve of leakproofness |
-
2019
- 2019-06-19 CN CN201920925837.5U patent/CN210135248U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110131424A (en) * | 2019-06-19 | 2019-08-16 | 厦门科恒塑胶有限公司 | A kind of preferable butterfly valve of leakproofness |
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| GR01 | Patent grant | ||
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Denomination of utility model: A butterfly valve with good sealing performance Effective date of registration: 20210510 Granted publication date: 20200310 Pledgee: Bank of China Limited by Share Ltd. Xiamen branch Pledgor: XIAMEN KEHENG PLASTIC Co.,Ltd. Registration number: Y2021980003401 |