CN216519632U - High-performance butterfly valve capable of compensating centering of butterfly plate - Google Patents
High-performance butterfly valve capable of compensating centering of butterfly plate Download PDFInfo
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- CN216519632U CN216519632U CN202122261553.0U CN202122261553U CN216519632U CN 216519632 U CN216519632 U CN 216519632U CN 202122261553 U CN202122261553 U CN 202122261553U CN 216519632 U CN216519632 U CN 216519632U
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- butterfly plate
- valve rod
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- 238000007789 sealing Methods 0.000 claims abstract description 44
- 238000012856 packing Methods 0.000 claims abstract description 25
- 210000004907 gland Anatomy 0.000 claims abstract description 14
- 230000003014 reinforcing effect Effects 0.000 claims description 10
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract 1
- 238000005299 abrasion Methods 0.000 description 5
- 238000010030 laminating Methods 0.000 description 4
- 230000002035 prolonged effect Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 208000010392 Bone Fractures Diseases 0.000 description 1
- 206010017076 Fracture Diseases 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses a high-performance butterfly valve capable of compensating the centering of a butterfly plate, which comprises a valve body and a main mounting structure of the valve, wherein an outer valve seat and an inner valve seat are arranged inside the valve body; the packing gland is positioned at the top end of the valve body, a packing assembly is arranged inside the packing gland, and a valve rod is connected inside the packing gland; and the sealing cover is positioned on the bottom surface of the valve body, and a headless adjusting screw is connected inside the sealing cover. This can compensate butterfly plate to high performance butterfly valve of neutrality through having increased headless adjusting screw and adjustable seal ring, not only reduces the wearing and tearing of retaining ring and valve rod lower part simultaneously, reduces the moment of torsion of opening and close of valve, can adjust the butterfly plate to neutrality simultaneously on line, so that routine maintenance improves the holistic life of butterfly valve.
Description
Technical Field
The utility model relates to the technical field of valves, in particular to a high-performance butterfly valve capable of compensating the centering of a butterfly plate.
Background
The butterfly valve is also called a flap valve, is a regulating valve with simple structure, can be used for the butterfly valve for the on-off control of low-pressure pipeline media, is a valve which is a closing member, has a valve clack or a butterfly plate as a disc and rotates around a valve shaft to open and close, can not meet the industrial requirements with the development of industrial technology, and can meet the requirements of various working conditions and can be subjected to concentric, single eccentric and double eccentric evolutions.
Some high performance butterfly valves with larger calibers on the current market are additionally provided with bearings at the lower part of a valve rod due to the weight of a butterfly plate, although the service life of a check ring which is abraded can be prolonged and the torque can be reduced for a while, the problem that the centering performance of the butterfly plate is poor after the check ring or the lower part of the valve rod is abraded can not be fundamentally solved, the upper part of a sealing ring is leaked or the lower part of the sealing ring is seriously abraded, so that the leakage is caused, the overall practicability is reduced, and therefore, the high performance butterfly valve capable of compensating the centering performance of the butterfly plate is needed.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a high-performance butterfly valve capable of compensating the centering of a butterfly plate, and aims to solve the problems that the butterfly plate has poor centering performance after the butterfly plate is worn on the lower part of a check ring and the upper part of a sealing ring or the lower part of a valve rod of the high-performance butterfly valve with a larger caliber in the market is seriously worn to cause leakage because a bearing is additionally arranged on the lower part of the valve rod due to the weight of the butterfly plate, the service life of the check ring is prolonged and the torque is reduced for a while, but the problem that the butterfly plate has poor centering performance after the check ring or the lower part of the valve rod is worn in the high-performance butterfly valve is fundamentally solved.
In order to achieve the purpose, the utility model provides the following technical scheme: a high performance butterfly valve that compensates for butterfly plate centering, comprising:
the valve body is a main mounting structure of the valve, an outer valve seat and an inner valve seat are arranged inside the valve body, the inner valve seat is located on the inner surface of the outer valve seat, locking bolts are annularly distributed inside the inner valve seat and the outer valve seat, and a butterfly plate is arranged inside the valve body;
the packing gland is positioned at the top end of the valve body, a packing assembly is arranged inside the packing gland, and a valve rod is connected inside the packing gland;
the sealing cover is positioned on the bottom surface of the valve body, and a headless adjusting screw is connected inside the sealing cover;
the first shaft sleeve is connected to the outer surface of the top end of the valve rod, and the valve rod penetrates through the first shaft sleeve;
the second shaft sleeve is positioned at the bottom end of the valve rod, a groove is formed in the second shaft sleeve, and a thrust ball is connected in the groove;
and the sealing washer is positioned at the top end of the sealing cover, and a first ball and a second ball are respectively arranged in the sealing washer.
As a preferable technical scheme of the utility model, a wedge pin is arranged in the valve rod and the butterfly plate, one end of the wedge pin penetrates through the valve rod, and the valve rod is connected with the butterfly plate in a penetrating manner.
By adopting the technical scheme, the valve rod and the butterfly plate are limited through the wedge pin, so that the butterfly plate can control the fluid discharge inside the valve body, the wedge pin increases the stress point of the butterfly plate, the deformation caused by the uneven stress of the butterfly plate is avoided, and the integral strength of the butterfly plate is increased.
As a preferable technical scheme, the first shaft sleeve is connected with the valve rod in a clamping mode, and the valve rod is connected with the packing assembly in a fitting mode.
Adopt above-mentioned technical scheme, first axle sleeve reduces the frictional force on valve rod top, avoids the valve rod because of the too big cracked risk of appearing of moment of torsion power, simultaneously by the laminating of packing component at the valve rod top surface, the bulk strength that the inequality can increase the valve rod, can also clean valve rod and valve body connection face simultaneously.
As a preferable technical scheme of the utility model, thrust balls are annularly distributed inside the second shaft sleeve, the thrust balls are movably connected with the grooves, and the diameter of each thrust ball is larger than the gap inside the second shaft sleeve.
By adopting the technical scheme, the second shaft sleeve is arranged in the groove through the thrust ball, so that the thrust ball can only rotate in the groove, the phenomenon that the thrust ball generates a gap to cause different stress when in transmission is avoided, and the abrasion of the bottom of the valve rod is reduced.
In a preferred embodiment of the present invention, the seal gasket and the valve body form a detachable structure by a first ball and a second ball, one end of the first ball and one end of the second ball are engaged with the inside of the valve body, and the number of the first ball and the number of the second ball are the same.
By adopting the technical scheme, the sealing washer is clamped between the valve body and the sealing cover, so that the gap generated by large abrasion of the bottom of the valve rod can be filled, the integral sealing performance of the valve body is improved, and the situation that the butterfly valve cannot be normally used due to the fact that the sealing performance is damaged is avoided.
As a preferable technical scheme of the utility model, the top end of the sealing cover is provided with a reinforcing piece, and the radian of the top surface of the reinforcing piece is the same as that of the bottom surface of the valve body.
By adopting the technical scheme, the sealing cover is connected with the valve body through the reinforcing piece arranged, the whole sealing performance and stability of the second shaft sleeve and the sealing washer can be improved, the phenomenon that the friction is too large and displacement is generated is avoided, meanwhile, the reinforcing piece and the valve body are connected and completely laminated, the whole stress of the sealing cover is more uniform, and the whole practicability is improved.
Compared with the prior art, the utility model has the beneficial effects that: this can compensate butterfly plate to high performance butterfly valve of neutrality:
1. by adding the headless adjusting screw and the adjustable sealing washer, the abrasion of the lower parts of the retainer ring and the valve rod is reduced, the opening and closing torque of the valve is reduced, meanwhile, the centering performance of the butterfly plate can be adjusted on line, the butterfly plate is convenient to maintain in daily life, and the service life of the whole butterfly valve is prolonged;
2. through setting up headless adjusting screw and the mutual laminating of axle sleeve in the closing cap bottom, can adjust the laminating degree of axle sleeve and valve rod through the extruded mode, improve the holistic flexibility of axle sleeve to set up the reinforcement in the closing cap outside and be connected with the valve outside, can improve the bulk strength that closing cap and valve are connected the face, improve the stability of closing cap inner structure.
Drawings
FIG. 1 is a schematic view of the overall front view structure of the present invention;
FIG. 2 is a schematic overall side view of the present invention;
FIG. 3 is an enlarged view of the area A in FIG. 1 according to the present invention;
fig. 4 is a schematic top view of the sealing gasket of the present invention.
In the figure: 1. a valve body; 2. a packing gland; 3. a valve stem; 4. a butterfly plate; 5. sealing the cover; 6. a reinforcement; 7. an outer valve seat; 8. an inner valve seat; 9. locking the bolt; 10. a first bushing; 11. a packing assembly; 12. a wedge pin; 13. headless adjusting screws; 14. a second shaft sleeve; 15. a groove; 16. a thrust ball; 17. a sealing gasket; 18. a first ball bearing; 19. a second ball.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides a technical solution: a high performance butterfly valve that compensates for butterfly plate centering, comprising:
the valve body 1 is a main mounting structure of the valve, an outer valve seat 7 and an inner valve seat 8 are arranged inside the valve body 1, the inner valve seat 8 is located on the inner surface of the outer valve seat 7, locking bolts 9 are distributed in the inner valve seat 8 and the outer valve seat 7 in an annular mode, and a butterfly plate 4 is arranged inside the valve body 1; the packing gland 2 is positioned at the top end of the valve body 1, a packing component 11 is arranged inside the packing gland 2, and a valve rod 3 is connected inside the packing gland 2; the sealing cover 5 is positioned on the bottom surface of the valve body 1, and a headless adjusting screw 13 is connected inside the sealing cover 5; the first shaft sleeve 10 is connected to the outer surface of the top end of the valve rod 3, and the valve rod 3 penetrates through the first shaft sleeve 10; the second shaft sleeve 14 is positioned at the bottom end of the valve rod 3, a groove 15 is formed in the second shaft sleeve 14, and a thrust ball 16 is connected in the groove 15; and a sealing gasket 17 positioned at the top end of the cover 5, wherein the sealing gasket 17 is internally provided with a first ball 18 and a second ball 19 respectively.
A wedge pin 12 is arranged in the valve rod 3 and the butterfly plate 4, one end of the wedge pin 12 penetrates through the valve rod 3, and the valve rod 3 is connected with the butterfly plate 4 in a penetrating manner; the valve rod 3 and the butterfly plate 4 are limited through the wedge pin 12, so that the butterfly plate 4 can control fluid discharge inside the valve body 1, the wedge pin 12 increases the stress point of the butterfly plate 4, deformation caused by uneven stress of the butterfly plate 4 is avoided, and the integral strength of the butterfly plate 4 is increased; the first shaft sleeve 10 is connected with the valve rod 3 in a clamping manner, and the valve rod 3 is connected with the packing component 11 in an attaching manner; the first shaft sleeve 10 reduces the friction force at the top end of the valve rod 3, avoids the risk of fracture of the valve rod 3 due to overlarge torque force, and meanwhile, the packing component 11 is attached to the top surface of the valve rod 3, so that the overall strength of the valve rod 3 can be increased due to uneven distribution, and meanwhile, the connecting surface of the valve rod 3 and the valve body 1 can be cleaned; thrust balls 16 are annularly distributed in the second shaft sleeve 14, the thrust balls 16 are movably connected with the grooves 15, and the diameter of each thrust ball 16 is larger than the inner gap of the second shaft sleeve 14; the second shaft sleeve 14 enables the thrust ball 16 to only rotate in the groove 15 by arranging the thrust ball 16 in the groove 15, so that the thrust ball 16 is prevented from generating a gap to cause different stress during transmission, and the abrasion of the bottom of the valve rod 3 is reduced; the sealing washer 17 and the valve body 1 form a disassembly structure through a first ball 18 and a second ball 19, one ends of the first ball 18 and the second ball 19 are clamped in the valve body 1, and the number of the first ball 18 and the second ball 19 is the same; the sealing washer 17 is clamped between the valve body 1 and the sealing cover 5, so that a gap generated by large abrasion at the bottom of the valve rod 3 can be filled, the whole sealing performance of the valve body 1 is improved, and the situation that the butterfly valve cannot be normally used due to sealing performance damage is avoided; the top end of the sealing cover 5 is provided with a reinforcing piece 6, and the radian of the top surface of the reinforcing piece 6 is the same as that of the bottom surface of the valve body 1; the sealing cover 5 is connected with the valve body 1 through the reinforcing part 6 which is arranged, the whole sealing performance and stability of the second shaft sleeve 14 and the sealing washer 17 can be improved, the phenomenon that the friction is too large and the displacement is generated is avoided, meanwhile, the reinforcing part 6 is completely attached to the surface of the valve body 1, and the whole stress of the sealing cover 5 is more uniform, so that the whole practicability is improved.
The working principle is as follows: when using this can compensate high performance butterfly valve of butterfly plate centering nature, with inside 3 block of valve rod in gland 2, and run through butterfly plate 4 and closing cap 5 internal connection with valve rod 3, install the front end at butterfly plate 4 with outer disk seat 7 and interior disk seat 8 afterwards, headless adjusting screw 13 passes through the laminating degree of screw thread rotation control second shaft cover 14 and seal ring 17 and valve rod 3 bottom, when valve rod 3 carries out rotary control to butterfly plate 4, reduce the friction of valve rod 3 and retaining ring by first shaft cover 10 and second shaft cover 14, and improve valve rod 3 rotational sensitivity by packing component 11, reduce the turning torque of valve rod 3, at rotatory in-process, clear up the foreign matter between valve rod 3 and the packing component 11 through the friction, thereby improve the holistic life of valve.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments 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 (6)
1. A high performance butterfly valve that can compensate butterfly plate centering nature, its characterized in that includes:
the valve body (1) is a main mounting structure of the valve, an outer valve seat (7) and an inner valve seat (8) are arranged inside the valve body (1), the inner valve seat (8) is located on the inner surface of the outer valve seat (7), locking bolts (9) are annularly distributed inside the inner valve seat (8) and the outer valve seat (7), and a butterfly plate (4) is arranged inside the valve body (1);
the packing gland (2) is positioned at the top end of the valve body (1), a packing component (11) is arranged in the packing gland (2), and a valve rod (3) is connected in the packing gland (2);
the sealing cover (5) is positioned on the bottom surface of the valve body (1), and a headless adjusting screw (13) is connected inside the sealing cover (5);
the first shaft sleeve (10) is connected to the outer surface of the top end of the valve rod (3), and the valve rod (3) penetrates through the first shaft sleeve (10);
the second shaft sleeve (14) is positioned at the bottom end of the valve rod (3), a groove (15) is formed in the second shaft sleeve (14), and a thrust ball (16) is connected in the groove (15);
and the sealing washer (17) is positioned at the top end of the sealing cover (5), and a first ball (18) and a second ball (19) are respectively arranged in the sealing washer (17).
2. The high-performance butterfly valve capable of compensating for butterfly plate centering according to claim 1, wherein: the butterfly valve is characterized in that wedge pins (12) are arranged inside the valve rod (3) and the butterfly plate (4), one ends of the wedge pins (12) penetrate through the valve rod (3), and the valve rod (3) is connected with the butterfly plate (4) in a penetrating mode.
3. The high-performance butterfly valve capable of compensating for butterfly plate centering according to claim 1, wherein: the first shaft sleeve (10) is connected with the valve rod (3) in a clamping mode, and the valve rod (3) is connected with the packing assembly (11) in a fitting mode.
4. The high-performance butterfly valve capable of compensating for butterfly plate centering according to claim 1, wherein: thrust balls (16) are annularly distributed in the second shaft sleeve (14), the thrust balls (16) are movably connected with the grooves (15), and the diameter of each thrust ball (16) is larger than the inner gap of the second shaft sleeve (14).
5. The high-performance butterfly valve capable of compensating for butterfly plate centering according to claim 1, wherein: the sealing washer (17) and the valve body (1) form a dismounting structure through the first ball (18) and the second ball (19), one ends of the first ball (18) and the second ball (19) are clamped in the valve body (1), and the first ball (18) and the second ball (19) are identical in number.
6. The high-performance butterfly valve capable of compensating for butterfly plate centering according to claim 1, wherein: the top end of the sealing cover (5) is provided with a reinforcing piece (6), and the radian of the top surface of the reinforcing piece (6) is the same as that of the bottom surface of the valve body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122261553.0U CN216519632U (en) | 2021-09-17 | 2021-09-17 | High-performance butterfly valve capable of compensating centering of butterfly plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122261553.0U CN216519632U (en) | 2021-09-17 | 2021-09-17 | High-performance butterfly valve capable of compensating centering of butterfly plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216519632U true CN216519632U (en) | 2022-05-13 |
Family
ID=81520471
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122261553.0U Active CN216519632U (en) | 2021-09-17 | 2021-09-17 | High-performance butterfly valve capable of compensating centering of butterfly plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216519632U (en) |
-
2021
- 2021-09-17 CN CN202122261553.0U patent/CN216519632U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 361100, 1st Floor, No. 39 Huliyuan, Industrial Concentration Zone, Tong'an District, Xiamen City, Fujian Province Patentee after: Xiamen Sophie fluid control equipment Co.,Ltd. Address before: 361100 186 xitanggou Longli, Xinmin Town, Tong'an District, Xiamen City, Fujian Province Patentee before: Xiamen Sophie fluid control equipment Co.,Ltd. |