CN110906013A - Compensation type sealing butterfly valve with sequential linkage opening and closing charging and pressure relief functions - Google Patents
Compensation type sealing butterfly valve with sequential linkage opening and closing charging and pressure relief functions Download PDFInfo
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- CN110906013A CN110906013A CN201911142753.5A CN201911142753A CN110906013A CN 110906013 A CN110906013 A CN 110906013A CN 201911142753 A CN201911142753 A CN 201911142753A CN 110906013 A CN110906013 A CN 110906013A
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- sealing
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- box body
- opening
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
- F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
- F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
- F16K1/221—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves specially adapted operating means therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/46—Sealings with packing ring expanded or pressed into place by fluid pressure, e.g. inflatable packings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
- F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
- F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
- F16K1/226—Shaping or arrangements of the sealing
- F16K1/2263—Shaping or arrangements of the sealing the sealing being arranged on the valve seat
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/53—Mechanical actuating means with toothed gearing
- F16K31/535—Mechanical actuating means with toothed gearing for rotating valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
- F16K37/0008—Mechanical means
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Architecture (AREA)
- Fluid Mechanics (AREA)
- Lift Valve (AREA)
- Mechanically-Actuated Valves (AREA)
Abstract
A compensation type sealing butterfly valve with sequential linkage opening and closing, charging and releasing functions comprises a valve body, a valve shaft is arranged in the valve body, a sealing pressure sleeve is arranged on an inner side opening of the valve body, a sealing ring is arranged between the sealing pressure sleeve and the valve body, an annular pressurizing support is arranged in the sealing ring, a through hole is formed in the annular pressurizing support, a pressurizing inner channel is formed in the wall surface of the valve body corresponding to the through hole and connected with a pressure pipe, a box body is arranged on one side of the valve body, a box cover is arranged on the other side of the box body, a worm wheel and a worm are arranged in the box body, the valve shaft is connected with the worm wheel, the worm penetrates through the box body and is connected with a hand wheel, a push rod is formed in the other end of the worm, a shaft sleeve and a disc spring are arranged in one end of the push rod of the box body, a cylinder body is arranged, the cylinder body is provided with a through hole on one side of the spring, and the through hole is communicated with the other end of the pressure pipe.
Description
Technical Field
The invention relates to a compensation type sealing butterfly valve, in particular to a compensation type sealing butterfly valve with sequential linkage opening and closing charging and discharging pressure.
Background
The butterfly valve has the characteristics of compact structure, convenient operation, excellent performance and the like, and is widely applied to various pipeline control systems for opening and closing and intercepting or regulating flow. The sealing mode of the butterfly valve can be divided into a forced extrusion type sealing butterfly valve and a compensation type sealing butterfly valve; the forced extrusion type sealing butterfly valve is characterized in that sealing of the valve is realized by rotating a valve plate in a butterfly valve inner cavity and forcibly extruding a sealing pair, opening and closing operations of the valve are very simple, opening of the valve is only required to be rotated, the valve plate in the butterfly valve inner cavity is separated from the sealing pair and rotated to a full-open position to complete opening of the valve, closing of the valve is only required to be rotated, the valve plate in the butterfly valve inner cavity is rotated until the valve plate is contacted and forcibly extruded to the full-closed position to complete closing of the valve, the structure is simple, the operation is convenient and fast, scraping, sliding and extruding between the valve plate and the sealing pair inevitably exist in the process of opening and closing the valve, scratch and damage between the sealing pair are easily caused until the valve is torn, the sealing. Compared with a forced extrusion type sealing structure, the compensation type sealing structure adds a sealing compensation action, namely the expansion of the sealing ring, after the valve is closed, the expanded sealing ring can compensate the insufficient sealing specific pressure between the sealing pairs of the valve and the impurities and abrasion possibly existing between the sealing pairs to a certain extent, thereby avoiding the sealing failure, realizing more reliable absolute sealing effect, realizing frictionless movement between the sealing pairs in the opening and closing process of the valve, but the opening and closing operation of the compensation type sealing butterfly valve is more complex, namely the pressure in the sealing ring is firstly released when the valve is opened, the valve plate which retracts to the inner cavity of the rotary butterfly valve is opened to the full opening position after the sealing ring is provided with a gap between the sealing pairs, the valve opening action is finished when the valve is closed to the full closing position, after the gas (liquid) body with certain pressure is filled into the sealing ring after the valve is in place, the structure is complex and tedious to operate, pressure is relieved before a valve is opened, pressure is charged by an external pressure source after the valve is closed, once an operation flow is wrong, the sealing pair is directly damaged, and the sealing pair is torn until sealing explosion occurs, so that sealing failure is caused.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides a compensation type sealing butterfly valve with sequential linkage opening and closing, charging and discharging functions, wherein a sealing ring automatically charges, expands and seals after a valve plate is closed in place, the sealing ring automatically discharges pressure and removes sealing before the valve plate is opened, the sealing is reliable, the operation is convenient, the sealing ring has no friction, and the service life of the sealing ring is ensured.
The invention relates to a technical scheme of a compensation type sealing butterfly valve with sequential linkage opening and closing charging and discharging pressure, which comprises the following steps: the valve comprises a valve body, a valve shaft is arranged in the valve body, the valve shaft is connected with a valve plate through a pin, a sealing pressing sleeve is arranged on an inner side opening of the valve body, a sealing ring is arranged between the sealing pressing sleeve and the valve body, the valve plate is matched with the sealing ring, an annular pressurizing support is arranged in the sealing ring, a through hole is formed in the annular pressurizing support, a pressurizing inner channel is formed in a wall surface of the valve body corresponding to the through hole and connected with a pressure pipe, a box body is arranged on one side of the valve body, a box cover is arranged on the other side of the box body, a worm wheel and a worm are arranged in the box body, one end of the valve shaft penetrates through the valve body and the box body to be connected with the worm wheel, the worm wheel is meshed with the worm, one end of the worm penetrates through the box body to be connected with a hand wheel, an ejector rod is, the piston is arranged in the cylinder body, a piston rod is arranged on one side of the piston, the piston rod penetrates through the box body to be in contact with the worm, an air inlet is arranged on one side, located on the piston rod, of the cylinder body, a spring is arranged in the cylinder body on the other side of the piston, oil liquid or gas is arranged in one side, located on the spring, of the cylinder body, a through hole is arranged on one side, located on the spring, of the cylinder body, and the.
The invention discloses a compensation type sealed butterfly valve with sequential linkage opening and closing, charging and releasing pressure, when a valve plate is closed, a hand wheel is rotated in a closing direction, a worm is driven by the hand wheel to rotate, the worm is meshed with a worm wheel to drive the worm wheel to rotate in the closing direction, the worm wheel drives a valve shaft connected with the worm wheel to rotate in the closing direction synchronously with the valve plate, when the worm wheel rotates to a preset closing direction limit position in the closing direction, the valve plate is also closed in place synchronously, if the hand wheel and the worm are rotated in the closing direction continuously, because the worm wheel reaches the closing direction limit position, the worm cannot drive the worm wheel to rotate in the closing direction any more, the worm generates an axial float trend in the direction of a disc spring at the moment, the axial force F =2 pi M/P (M is the torque acting on the hand wheel, and the lead of the P-worm) of the disc spring is larger than the pre-tightening elastic, the piston acts on a piston rod and pushes a piston in a cylinder body to move, the piston extrudes liquid or air pressure in the cylinder body, the liquid or the air pressure is conveyed into a sealing ring made of rubber material through a through hole and a pressure pipe, the sealing ring made of the rubber material expands after being pressed and extends towards a valve plate in an inner cavity of a valve body until the sealing ring is tightly contacted with the valve plate, the pressure in the inner cavity of the sealing ring is transferred to the valve plate, and sealing specific pressure is formed, so that the sealing effect of isolating the upstream and the downstream of the; when the opening direction rotation operation hand wheel is used, the worm rotates in the opening direction synchronously, under the action of axial force exerted by a disc spring, liquid pressure (or air pressure) in a cylinder, a spring and the like, the worm retracts axially, the piston also resets synchronously, the liquid pressure (or air pressure) in the cylinder and the inner cavity of the sealing ring also reduce pressure and relieve pressure synchronously, the sealing ring retracts synchronously, along with the axial resetting of the worm, the sealing ring returns to an initial state elastically and is separated from the valve plate completely and forms a gap with the valve plate again after being in contact with the valve plate, at the moment, the hand wheel continues to open to the rotary hand wheel, the hand wheel drives the worm wheel to rotate in the opening direction to drive the valve plate connected with the hand wheel to rotate in the opening direction synchronously, when the worm wheel rotates to a preset opening direction. This scheme one kind has the order linkage and opens and close the compensation formula seal butterfly valve who fills the release, and its advantage has: 1. the opening and closing processes of the valve plate and the charging and discharging of the sealing ring are automatically realized directly through the rotation operation of the hand wheel, external special charging equipment or tools are not needed, additional operation is not needed, the process is continuous, no difference exists between the process and the traditional butterfly valve operation method, the effects that the pressure is discharged and then the valve is opened, the pressure is charged after the valve is closed can be realized, any operation logic sequence error can not occur, and the charging and discharging structure is integrally connected with the opening and closing structure of the worm and worm wheel driving valve plate, so that the structure is compact and the action is reliable; 2. the non-contact type rotation between the sealing pairs is realized in the opening and closing rotation process of the valve plate, the sliding friction abrasion and tearing of the sealing pairs are avoided, the service life is prolonged, and the operation is labor-saving and easy; 3. the sealing ring made of high-strength elastic hollow rubber material has extremely strong elastic recovery capability, uniform elastic deformation and reliable contraction recovery; 4. the sealing ring made of rubber material is elastically deformed and stretched by pressurizing, so that the sealing ring is in contact sealing with the valve plate, reliable sealing capability can be guaranteed, sealing abrasion can be compensated within a certain range, and the service life of the valve is prolonged.
The invention relates to a compensation type sealing butterfly valve with sequential linkage opening and closing charging and discharging pressure. When the worm wheel rotates to the right position in the opening direction, one side of the worm wheel is in contact with the opening direction limiting bolt, the worm wheel is limited by the opening direction limiting bolt, so that the worm wheel cannot continue to rotate in the opening direction, and when the worm wheel rotates to the right position in the closing direction, the other side of the worm wheel is in contact with the closing direction limiting bolt, and the worm wheel is limited by the closing direction limiting bolt. One side of the worm wheel penetrates through the box cover to be connected with the indicating cover, and an arrow mark is arranged on the indicating cover. The box cover can be printed or engraved with characters for opening and closing, and when the worm wheel drives the indicating cover and the arrow mark to rotate to correspond to the characters, the valve plate is proved to be opened in place or closed in place. The two ends of the worm are provided with bearings, the bearing at one end is in contact with the inner wall of the end cover at one side of the box body, and the bearing at the other end is in contact with the shaft sleeve. The piston is provided with a sealing groove, and a sealing ring is arranged in the sealing groove. The sealing ring is arranged, and the sealing performance between the piston and the cylinder body is improved.
Drawings
FIG. 1 is a schematic structural diagram of an open state of a valve plate of a compensation type sealing butterfly valve with sequential linkage opening and closing, charging and discharging of pressure;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
FIG. 3 is a schematic structural diagram of a valve plate closed state of a compensation type sealing butterfly valve with sequential linkage opening and closing pressure charging and discharging functions according to the present invention;
FIG. 4 is an enlarged view of a portion of FIG. 3 at B;
FIG. 5 is a schematic cross-sectional view taken along line C-C of FIG. 3;
FIG. 6 is a structural diagram of a sealing ring of a compensation type sealing butterfly valve with sequential linkage opening and closing pressure charging and discharging functions according to the present invention in a pressurized state;
fig. 7 is a partially enlarged schematic view at D of fig. 6.
Detailed Description
The invention relates to a compensation type sealed butterfly valve with sequential linkage opening and closing, charging and discharging functions, as shown in figures 1-7, comprising a valve body 1, a valve shaft 2 arranged in the valve body, the valve shaft connected with a valve plate 4 through a pin 3, a sealing press sleeve 5 arranged on the inner side port of the valve body 1, a sealing ring 6 arranged between the sealing press sleeve and the valve body 1, the valve plate matched with the sealing ring, an annular charging support 7 arranged in the sealing ring, a perforation 8 arranged in the annular charging support, a charging inner channel 9 arranged on the wall surface of the valve body 1 corresponding to the perforation, the charging inner channel connected with a pressure pipe 10, a box body 11 arranged on one side of the valve body 1, a box cover 12 arranged on the other side of the box body, a worm wheel 13 and a worm 14 arranged in the box body, one end of the worm wheel 2 connected with the worm wheel through the valve body 1 and the box body 11, the worm wheel meshed with the worm, one end of the worm, the box body 11 is provided with a shaft sleeve 20 and a disc spring 21 in one end of a mandril, the mandril penetrates through the shaft sleeve and the disc spring, one side of the box body is provided with a cylinder body 22, the cylinder body is fixed with the box body, a piston 23 is arranged in the cylinder body, one side of the piston is provided with a piston rod 24, the piston rod penetrates through the box body 11 to be contacted with a worm 14, one side of the cylinder body, which is positioned on the piston rod, is provided with an air inlet 25, the other side of the piston is provided with a spring 26, the cylinder body is provided with oil liquid or gas in one side of the spring, one side of the. When the valve plate 4 is closed, the hand wheel 15 is rotated in a closing direction, the hand wheel drives the worm 14 to rotate, the worm is meshed with the worm wheel 13 to drive the worm wheel to rotate in the closing direction, the worm wheel drives the valve shaft 2 connected with the worm wheel to rotate in the closing direction synchronously with the valve plate 4, when the worm wheel rotates to a preset closing direction limit position in the closing direction, the valve plate 4 is synchronously closed to a proper position, if the hand wheel 15 and the worm 14 are continuously rotated in the closing direction, the worm cannot drive the worm wheel to rotate in the closing direction any more because the worm wheel 13 reaches the closing direction limit position, at the moment, the worm 14 generates an axial movement trend towards the direction of the disc spring 21, the axial force F =2 pi M/P (M-torque acting on the hand wheel and P-lead of the worm) of the worm 14 on the disc spring 21 is greater than the pre-tightening elastic force of the disc spring, the worm 14 compresses the disc spring 21 and generates displacement, the, the piston extrudes liquid or air pressure in the cylinder body, the liquid or the air pressure is conveyed into the sealing ring 6 made of rubber material through the through hole 27 and the pressure pipe 10, the sealing ring made of rubber material expands after being pressed, and extends towards the valve plate 4 in the inner cavity of the valve body 1 until the sealing ring 6 is tightly contacted with the valve plate 4, the pressure in the inner cavity of the sealing ring is transmitted to the valve plate, and sealing specific pressure is formed, so that the sealing effect of isolating the upper and lower streams of the valve plate is achieved; when the hand wheel 15 is operated in the opening direction and rotation mode, the worm 14 rotates in the opening direction synchronously, under the action of axial force exerted by the disc spring 21, liquid pressure (or air pressure) in the cylinder, the spring 26 and the like, the worm 14 retracts axially, the piston 23 also resets synchronously, the liquid pressure (or air pressure) in the cylinder 22 and the inner cavity of the sealing ring 6 also reduce pressure and relieve pressure synchronously, the sealing ring retracts synchronously, along with the axial resetting of the worm 14, the sealing ring 6 returns to an initial state elastically, a gap is formed between the sealing ring and the valve plate 4 after the sealing ring is completely separated from contact with the valve plate 4, at the moment, the hand wheel 15 continues to be opened in the rotation mode, the worm wheel 13 drives the worm wheel 13 to rotate in the opening direction synchronously, the valve plate 4 connected with the valve plate 4 is driven to rotate in the opening direction synchronously, and the valve. This scheme one kind has the order linkage and opens and close the compensation formula seal butterfly valve who fills the release, and its advantage has: 1. the opening and closing process of the valve plate 4 and the charging and discharging of the sealing ring 6 are automatically realized directly through the rotation operation of the hand wheel 15, external special charging equipment or tools are not needed, additional operation is not needed, the process is continuous, no difference exists between the method and the traditional butterfly valve operation method, the effects that the pressure is discharged and then the valve is opened, the valve is closed and then the pressure is charged can be realized, any logical sequence error in operation can not occur, and the charging and discharging structure is integrally connected with the opening and closing structure of the valve plate driven by the worm and worm wheel, so that the structure is compact and the action is reliable; 2. the non-contact type rotation between the sealing pairs is realized in the opening and closing rotation process of the valve plate 4, the sliding friction abrasion and tearing of the sealing pairs are avoided, the service life is prolonged, and the labor and the ease of operation are realized; 3. the sealing ring 6 made of high-strength elastic hollow rubber material has extremely strong elastic recovery capability, uniform elastic deformation and reliable contraction recovery; 4. the sealing ring 6 made of rubber material is elastically deformed and stretched by pressurizing, so that the sealing ring is in contact sealing with the valve plate 4, reliable sealing capability can be ensured, sealing abrasion compensation can be realized within a certain range, and the service life of the valve is prolonged. An opening limiting bolt 16 and a closing limiting bolt 17 are arranged in the box body 11, and the opening limiting bolt and the closing limiting bolt are respectively matched with the worm wheel 13. When the worm wheel 13 rotates to the right position in the opening direction, one side of the worm wheel is in contact with the opening direction limiting bolt 16, the opening direction limiting bolt limits the worm wheel to prevent the worm wheel from continuing to rotate in the opening direction, and when the worm wheel 13 rotates to the right position in the closing direction, the other side of the worm wheel is in contact with the closing direction limiting bolt 17, and the closing direction limiting bolt limits the worm wheel. One side of the worm wheel 13 penetrates through the box cover 12 to be connected with an indicating cover 18, and an arrow mark 19 is arranged on the indicating cover. The cover 12 may be printed or engraved with open and closed lettering, which proves that the valve plate 4 is open or closed in position when the worm wheel 13 rotates the indicating cover 18 and the arrow mark 19 to correspond to the lettering. Two ends of the worm 14 are provided with bearings 28, one end of the bearing is contacted with the inner wall of the end cover at one side of the box body 11, and the other end of the bearing 28 is contacted with the shaft sleeve 20. The piston 23 is provided with a sealing groove 29, and a sealing ring 31 is arranged in the sealing groove. The sealing ring 31 improves the sealing property between the piston 23 and the cylinder 22.
Claims (5)
1. A compensation type sealing butterfly valve with sequential linkage opening and closing pressure charging and discharging functions comprises a valve body (1), wherein a valve shaft (2) is arranged in the valve body and is connected with a valve plate (4) through a pin (3), a sealing pressure sleeve (5) is arranged on an inner side opening of the valve body (1), a sealing ring (6) is arranged between the sealing pressure sleeve and the valve body (1), the valve plate is matched with the sealing ring, an annular pressure charging support (7) is arranged in the sealing ring, a perforation (8) is formed in the annular pressure charging support, a pressure charging inner channel (9) is formed in a wall surface, corresponding to the perforation, of the valve body (1) and is connected with a pressure pipe (10), a box body (11) is arranged on one side of the valve body (1), a box cover (12) is arranged on the other side of the box body, a worm wheel (13) and a worm (14) are arranged in the box body, one, the worm wheel meshes with the worm mutually, and box (11) connection hand wheel (15), its characterized in that are passed to one end of worm: the novel pressure pipe is characterized in that a mandril (30) is arranged at the other end of the worm (14), a shaft sleeve (20) and a disc spring (21) are arranged in one end of the box body (11) positioned on the mandril, the mandril penetrates through the shaft sleeve and the disc spring, a cylinder body (22) is arranged on one side of the box body and is fixed with the box body, a piston (23) is arranged in the cylinder body, a piston rod (24) is arranged on one side of the piston, the piston rod penetrates through the box body (11) to be contacted with the worm (14), an air inlet hole (25) is arranged on one side of the piston rod, a spring (26) is arranged in the cylinder body on the other side of the piston, oil or gas is arranged in one side of the spring.
2. The compensated sealing butterfly valve with sequential linkage opening and closing pressure charging and discharging functions of claim 1, wherein: the box body (11) is internally provided with an opening-direction limiting bolt (16) and a closing-direction limiting bolt (17), and the opening-direction limiting bolt and the closing-direction limiting bolt are respectively matched with the worm wheel (13).
3. The compensated sealing butterfly valve with sequential linkage opening and closing pressure charging and discharging functions of claim 1, wherein: one side of the worm wheel (13) penetrates through the box cover (12) to be connected with an indicating cover (18), and an arrow mark (19) is arranged on the indicating cover.
4. The compensated sealing butterfly valve with sequential linkage opening and closing pressure charging and discharging functions of claim 1, wherein: two ends of the worm (14) are provided with bearings (28), one end of the bearing is in contact with the inner wall of the end cover at one side of the box body (11), and the other end of the bearing is in contact with the shaft sleeve (20).
5. The compensated sealing butterfly valve with sequential linkage opening and closing pressure charging and discharging functions of claim 1, wherein: the piston (23) is provided with a sealing groove (29), and a sealing ring (31) is arranged in the sealing groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911142753.5A CN110906013B (en) | 2019-11-20 | 2019-11-20 | Compensation type sealing butterfly valve with sequential linkage opening and closing functions and pressure relief functions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911142753.5A CN110906013B (en) | 2019-11-20 | 2019-11-20 | Compensation type sealing butterfly valve with sequential linkage opening and closing functions and pressure relief functions |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110906013A true CN110906013A (en) | 2020-03-24 |
| CN110906013B CN110906013B (en) | 2023-08-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911142753.5A Active CN110906013B (en) | 2019-11-20 | 2019-11-20 | Compensation type sealing butterfly valve with sequential linkage opening and closing functions and pressure relief functions |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110906013B (en) |
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| CN2229014Y (en) * | 1995-08-11 | 1996-06-12 | 周宾 | Straight butterfly valve |
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| CN108626412A (en) * | 2018-07-13 | 2018-10-09 | 章锡明 | From boost charge-air sealed butterfly valve |
| CN110410563A (en) * | 2019-08-26 | 2019-11-05 | 上海冠龙阀门机械有限公司 | A kind of intellectual worm gear Hand-operated butterfly valve |
| CN211344055U (en) * | 2019-11-20 | 2020-08-25 | 台州市工宇阀门有限公司 | Compensation type sealing butterfly valve with sequential linkage opening and closing charging and pressure relief functions |
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2019
- 2019-11-20 CN CN201911142753.5A patent/CN110906013B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3464669A (en) * | 1964-12-04 | 1969-09-02 | Marie Charles Emile Henrion | Control system for butterfly valves |
| GB1263391A (en) * | 1969-01-07 | 1972-02-09 | Coplastix Ltd | Improvements in or relating to fluid-flow control valves |
| GB1411544A (en) * | 1971-10-30 | 1975-10-29 | Dunlop Ltd | Retracting inflatable seals |
| US4137935A (en) * | 1976-02-11 | 1979-02-06 | Macawber Engineering Limited | Valve assembly |
| CN2229014Y (en) * | 1995-08-11 | 1996-06-12 | 周宾 | Straight butterfly valve |
| US6213450B1 (en) * | 1998-09-12 | 2001-04-10 | Hygienic Pigging Systems Limited | Valves |
| CN2365464Y (en) * | 1998-10-14 | 2000-02-23 | 郑州市蝶阀厂 | Telescopic butterfly valve |
| CN1643279A (en) * | 2002-03-19 | 2005-07-20 | 费希尔控制国际公司 | Fluid flow control valve with bi-directional shutoff |
| US20030183796A1 (en) * | 2002-03-29 | 2003-10-02 | Crawley Michael F. | Inflatable seat valve |
| CN108626412A (en) * | 2018-07-13 | 2018-10-09 | 章锡明 | From boost charge-air sealed butterfly valve |
| CN110410563A (en) * | 2019-08-26 | 2019-11-05 | 上海冠龙阀门机械有限公司 | A kind of intellectual worm gear Hand-operated butterfly valve |
| CN211344055U (en) * | 2019-11-20 | 2020-08-25 | 台州市工宇阀门有限公司 | Compensation type sealing butterfly valve with sequential linkage opening and closing charging and pressure relief functions |
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| CN110906013B (en) | 2023-08-08 |
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Effective date of registration: 20230419 Address after: No.390 Jiangtantou, Dujia Village, Beicheng Street, Huangyan District, Taizhou City, Zhejiang Province, 318020 Applicant after: Taizhou Gongyu Valve Co.,Ltd. Address before: Room 602, Unit 2, Building 58, Xijiang New Village, Xicheng Street, Huangyan District, Taizhou City, Zhejiang Province, 318020 Applicant before: Zhang Ximing |
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