CN115306908A - Eccentric rotary valve - Google Patents

Eccentric rotary valve Download PDF

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Publication number
CN115306908A
CN115306908A CN202211243734.3A CN202211243734A CN115306908A CN 115306908 A CN115306908 A CN 115306908A CN 202211243734 A CN202211243734 A CN 202211243734A CN 115306908 A CN115306908 A CN 115306908A
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CN
China
Prior art keywords
valve
valve core
eccentric rotary
gear
spool
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202211243734.3A
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Chinese (zh)
Inventor
孔令兵
张晓昕
吴中林
孙佳银
王帝
张志�
常庆硕
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Etam Fluid Control Technology Shandong Co ltd
Original Assignee
Etam Fluid Control Technology Shandong Co ltd
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Publication date
Application filed by Etam Fluid Control Technology Shandong Co ltd filed Critical Etam Fluid Control Technology Shandong Co ltd
Priority to CN202211243734.3A priority Critical patent/CN115306908A/en
Publication of CN115306908A publication Critical patent/CN115306908A/en
Pending legal-status Critical Current

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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
    • F16K1/223—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 with a plurality of valve members
    • 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
    • F16K1/32—Details
    • 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
    • F16K1/32—Details
    • F16K1/34—Cutting-off parts, e.g. valve members, seats
    • F16K1/36—Valve members
    • 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
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/02—Construction of housing; Use of materials therefor of lift valves
    • F16K27/0209—Check valves or pivoted valves
    • 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
    • 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
    • F16K31/60—Handles

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sliding Valves (AREA)

Abstract

The invention relates to the technical field of valves, in particular to an eccentric rotary valve which comprises a valve body and a valve core group, wherein the valve core group can be rotationally arranged on the valve body and comprises a first valve core and a second valve core; when the valve is in a closed state, the first valve core and the second valve core are abutted; by arranging the valve body and the valve core group, on one hand, when the eccentric rotary valve is opened, the first valve core and the second valve core are far away, so that the first valve core and the second valve core are relatively balanced in stress when impacted by fluid, and the valve body is not easy to vibrate, thereby reducing the abrasion of the valve core group, further prolonging the service life of the eccentric rotary valve and improving the economic benefit; on the other hand, when the eccentric rotary valve is closed, the sealing performance of the eccentric rotary valve is improved by the mode that the first valve core is abutted with the second valve core.

Description

Eccentric rotary valve
Technical Field
The invention relates to the technical field of valves, in particular to an eccentric rotary valve.
Background
The eccentric rotary valve absorbs partial advantages of a ball valve and a butterfly valve, has a series of advantages of simple structure, small volume, light weight, larger rated flow coefficient, large adjustable range, wide range of service temperature, small leakage, high stability and the like, is particularly suitable for adjusting and cutting off slurry and particle media with large viscosity, and is widely applied to industries such as petroleum, chemical industry, metallurgy, steel, papermaking, coal chemical industry and the like.
For example, chinese patent CN216200598U discloses a self-adaptive eccentric rotary valve, which includes a valve rod, a valve body, and a valve core, wherein the valve core is located in the valve body, one end of the valve rod penetrates into a cavity of the valve body and is sleeved in the valve core, the other end of the valve rod penetrates out of the valve body, a pressing plate is fixed at the upper end of the valve body by a bolt, a lower bearing is fixed at the bottom of the cavity of the valve body, an upper bearing is fixed at the top of the cavity of the valve body, two ends of the valve rod are respectively and rotatably connected to the upper bearing and the lower bearing, a first sealing ring which is abutted against the pressing plate is sleeved on the valve rod, a thrust pad which is abutted against the bottom of the first sealing ring is arranged on the valve rod, a protruding step is arranged at the upper end of the valve rod, the lower end of the upper bearing is abutted against the top of the valve core, the lower end of the lower bearing is abutted against the valve body, and the upper end of the lower bearing is abutted against the valve core.
However, when the existing eccentric rotary valve works, the valve core is seriously abraded, the service life is short, and the working efficiency can be ensured only by frequently replacing the valve core.
Disclosure of Invention
The applicant finds that the dynamic balance of the eccentric rotary valve core is inevitably influenced due to the adoption of an eccentric structure. Especially in the case of small opening degree, when fluid flows through the valve body rapidly, the valve core can vibrate under the action of unbalanced force, and the long-time normal operation of the valve is seriously influenced; in addition, when the normal eccentric rotary ball valve is opened to a small degree (less than 30 degrees), the service life of the valve is generally short, the service requirement of a user cannot be met usually, and only the valve core is replaced frequently to maintain the operation of the system.
In view of the above, it is necessary to provide an eccentric rotary valve to solve the problems of the existing eccentric rotary valve.
The above purpose is realized by the following technical scheme:
an eccentric rotary valve comprising:
a valve body;
the eccentric rotary valve comprises a valve body, a valve core group and a rotary valve, wherein the valve core group can be rotatably arranged on the valve body and comprises a first valve core and a second valve core; in the closed state, the first valve spool and the second valve spool abut.
In one embodiment, the valve further comprises a drive assembly for driving the first valve spool and the second valve spool to move synchronously and reversely.
In one embodiment, the driving assembly comprises a rotating wheel, a first gear, a second gear, a third gear, a first gear shaft and a second gear shaft, wherein the rotating wheel is slidably and rotatably arranged on the valve body; the first gear is arranged on the rotating wheel; one end of the first gear shaft is rotatably arranged on the valve body, and the other end of the first gear shaft is arranged on the first valve core; the second gear is arranged on the first gear shaft; one end of the second gear shaft is rotatably arranged on the valve body, and the other end of the second gear shaft is arranged on the second valve core; the third gear is arranged on the second gear shaft; the second gear is always meshed with the third gear; when the eccentric rotary valve is in the opening state or the closing state, one end of the first gear is meshed with the second gear, and the other end of the first gear is meshed with the third gear; when the eccentric rotary valve is switched between the opening state and the closing state, the first gear is meshed with the third gear.
In one embodiment, the synchronous device further comprises a first synchronous frame, a second synchronous frame, a third valve core, a fourth valve core, a fifth valve core and a sixth valve core, wherein the first synchronous frame is arranged on the runner; the second synchronous frame is slidably arranged on the valve body; the first and second synchronizers are capable of moving synchronously and reversely; the third valve core and the fifth valve core are both arranged on the first valve core in a sliding manner, and first grooves are formed in the third valve core and the fourth valve core; the fourth valve core and the sixth valve core are both slidably arranged on the second valve core, and second grooves are formed in the fifth valve core and the sixth valve core; when the eccentric rotary valve is switched between the opening state and the closing state, the first synchronous frame drives the third valve core and the fourth valve core to move through the first groove, and the second synchronous frame drives the fifth valve core and the sixth valve core to move through the second groove; when the eccentric rotary valve is in the closed state, the third valve core and the fourth valve core are abutted to seal the eccentric rotary valve, and the fifth valve core and the sixth valve core are used for sealing the eccentric rotary valve.
In one embodiment, the third valve core and the fifth valve core are provided with first teeth, the fourth valve core and the sixth valve core are provided with second teeth, and when the eccentric rotary valve is in the closed state, the first teeth and the second teeth are abutted to seal the eccentric rotary valve.
In one embodiment, the rotary valve further comprises a baffle plate disposed on the third valve core, the fourth valve core, the fifth valve core and the sixth valve core, wherein the baffle plate is used for sealing the eccentric rotary valve when the eccentric rotary valve is in the closed state.
In one embodiment, the drive assembly includes a first driver configured to drive movement of the first spool and a second driver configured to drive movement of the second spool.
In one embodiment, the first valve core is provided with third teeth; a fourth tooth is arranged on the second valve core; the third tooth and the fourth tooth abut to seal the eccentric rotary valve when the eccentric rotary valve is in the closed state.
In one embodiment, the valve body is provided with a water inlet and a water outlet.
The invention has the beneficial effects that:
the invention relates to an eccentric rotary valve, which comprises a valve body and a valve core group, wherein the valve core group can be rotationally arranged on the valve body and comprises a first valve core and a second valve core; when the valve is in a closed state, the first valve core and the second valve core are abutted; by arranging the valve body and the valve core group, on one hand, when the eccentric rotary valve is opened, the first valve core and the second valve core are far away, so that the first valve core and the second valve core are relatively balanced in stress when impacted by fluid, and the valve body is not easy to vibrate, thereby reducing the abrasion of the valve core group, further prolonging the service life of the eccentric rotary valve and improving the economic benefit; on the other hand, when the eccentric rotary valve is closed, the sealing performance of the eccentric rotary valve is improved by the mode that the first valve core is abutted with the second valve core.
Drawings
Fig. 1 is a schematic perspective view of an eccentric rotary valve according to an embodiment of the present invention;
FIG. 2 is a schematic side view of an eccentric rotary valve according to an embodiment of the present invention;
FIG. 3 isbase:Sub>A schematic sectional view of the eccentric rotary valve of FIG. 2 from the A-A direction;
FIG. 4 is a schematic side view of an eccentric rotary valve with a valve body removed according to an embodiment of the present invention;
FIG. 5 is a schematic perspective view of an eccentric rotary valve according to an embodiment of the present invention, showing the first and second spools open;
fig. 6 is a schematic perspective view of a valve body of an eccentric rotary valve according to an embodiment of the present invention.
Wherein:
100. a valve body; 110. a water inlet; 120. a water outlet; 130. a synchronizing gear; 140. an installation table; 141. a first connection hole; 142. a second connection hole; 150. installing a shaft;
200. a synchronization device; 210. a first synchronizer; 220. a second synchronizing frame; 230. a first slide bar; 240. a second slide bar;
300. an adjustment device; 310. a rotating wheel; 320. a first gear; 330. a first gear set; 331. a second gear; 332. a first gear shaft; 340. a second gear set; 341. a third gear; 342. a second gear shaft; 350. a valve core assembly; 351. a first valve spool; 352. a second valve core; 353. a third valve core; 354. a fourth valve spool; 355. a fifth valve spool; 356. a sixth valve core; 360. and a baffle plate.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below by way of embodiments with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the invention.
The numbering of the components themselves, such as "first", "second", etc., is used herein only to distinguish between the objects depicted and not to have any sequential or technical meaning. The term "connected" and "coupled" when used in this application, unless otherwise indicated, includes both direct and indirect connections (couplings). In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like are used in the orientations and positional relationships indicated in the drawings, which are based on the orientations and positional relationships indicated in the drawings, and are used for convenience of description and simplicity of description, but do not indicate or imply that the devices or elements referred to must have specific orientations, be constructed and operated in specific orientations, and thus, should not be construed as limiting the present invention.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "above," and "above" a second feature can be directly or obliquely above the second feature, or merely that the first feature is at a higher level than the second feature. A first feature "under," "beneath," and "under" a second feature may be directly under or obliquely under the second feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
Referring to fig. 1 to 6, an eccentric rotary valve according to an embodiment of the present invention is provided to open or close a pipeline; in this embodiment, the eccentric rotary valve includes a valve body 100 and a valve core set, the valve body 100 is provided with a mounting table 140 and a mounting shaft 150, the number of the synchronizing gears 130 is two, the two synchronizing gears are rotatably connected to the outer peripheral wall surface of the valve body 100 and are oppositely arranged, and the mounting shaft 150 is slidably and rotatably mounted on the mounting table 140; the valve core set comprises a first valve core 351 and a second valve core 352, the first valve core 351 and the second valve core 352 are both rotatably arranged in the valve body 100, the eccentric rotary valve has an opening state and a closing state, and when the eccentric rotary valve is in the opening state, the first valve core 351 and the second valve core 352 are far away; in the closed state, the first valve spool 351 and the second valve spool 352 abut to seal the eccentric rotary valve. By arranging the valve body 100 and the valve core group, on one hand, when the eccentric rotary valve is opened, the first valve core 351 and the second valve core 352 are far away, so that the first valve core 351 and the second valve core 352 are relatively balanced in stress when being impacted by fluid, the valve body 100 is not easy to vibrate, the abrasion of the valve core group is reduced, the service life of the eccentric rotary valve is prolonged, and the economic benefit is improved; on the other hand, when the eccentric rotary valve is closed, the first valve body 351 and the second valve body 352 are in contact with each other, thereby improving the sealing performance of the eccentric rotary valve.
In some embodiments, the eccentric rotary valve includes a driving assembly for driving the first valve core 351 and the second valve core 352 to rotate synchronously and reversely, so that when the eccentric rotary valve is opened or closed, the first valve core 351 and the second valve core 352 synchronously move away from or close to each other, so that the first valve core 351 and the second valve core 352 are relatively uniformly stressed when being impacted by fluid, and the valve body 100 is not easily vibrated, thereby reducing the abrasion of the valve core group.
In some embodiments, the driving assembly includes a wheel 310, a first gear 320, a second gear 331, a third gear 341, a first gear shaft 332, and a second gear shaft 342, the wheel 310 is fixedly sleeved on the mounting shaft 150, the first gear 320 is fixedly connected to the wheel 310, the second gear 331 is fixedly sleeved on the first gear shaft 332, one end of the first gear shaft 332 is rotatably connected to the first connection hole 141, and the other end is fixedly connected to the first valve core 351; the third gear 341 is fixedly sleeved on the second gear shaft 342, one end of the second gear shaft 342 is rotatably connected to the second connection hole 142, and the other end is fixedly connected to the second valve core 352; the third gear 341 is always engaged with the second gear 331; when the eccentric rotary valve is in an open state or a closed state, the first gear 320 is meshed with the second gear 331 and the third gear 341 simultaneously, so that the first gear shaft 332 and the second gear shaft 342 cannot rotate, and the positions of the first valve spool 351 and the second valve spool 352 are fixed; when the eccentric rotary valve is switched between the opening state and the closing state, the first gear 320 is only meshed with the second gear 331, the rotation of the first gear 320 drives the second gear 331 to rotate, the rotation of the second gear 331 drives the third gear 341 to rotate, the rotation directions of the third gear 341 and the second gear 331 are opposite, the rotation directions of the first valve spool 351 and the second valve spool 352 are opposite, and the eccentric rotary valve is opened or closed.
In some embodiments, the eccentric rotary valve includes a first synchronizer 210, a second synchronizer 220, a first slide bar 230, a second slide bar 240, a first rack, a second rack, a third spool 353, a fourth spool 354, a fifth spool 355, and a sixth spool 356; the first synchronization frame 210 is fixedly connected to the mounting shaft 150, and a first rack is fixedly arranged on the first synchronization frame 210; the second synchronizing frame 220 is slidably disposed on the outer circumferential wall surface of the valve body 100, a second rack is fixedly disposed on the second synchronizing frame 220, one end of the synchronizing gear 130 is engaged with the first rack, and the other end is engaged with the second rack; when the first synchronization frame 210 moves upwards, the synchronization gear 130 drives the second synchronization frame 220 to synchronously move downwards, and when the first synchronization frame 210 moves downwards, the synchronization gear 130 drives the second synchronization frame 220 to synchronously move upwards; the third valve spool 353 and the fifth valve spool 355 are both provided on the first valve spool 351 to be slidable up and down in the vertical direction; one end of the first sliding bar 230 is fixedly connected with the first synchronizing frame 210, and one end of the second sliding bar 240 is fixedly connected with the second synchronizing frame 220; the fourth spool 354 and the sixth spool 356 are each provided on the second spool 352 slidably up and down in the vertical direction; grooves matched with the first sliding rod 230 are formed in the third valve spool 353 and the fourth valve spool 354, grooves matched with the second sliding rod 240 are formed in the fifth valve spool 355 and the sixth valve spool 356, and when the first sliding rod 230 moves upwards for a certain distance, the third valve spool 353 and the fourth valve spool 354 can be driven to move, and the fifth valve spool 355 and the sixth valve spool 356 can be driven to move by the second sliding rod 240.
When the eccentric rotary valve is switched between the opening state and the closing state, the first synchronous frame 210 drives the third valve core 353 and the fourth valve core 354 to move through the groove, and the second synchronous frame 220 drives the fifth valve core 355 and the sixth valve core 356 to move through the groove; when the eccentric rotary valve is in the closed state, the third valve spool 353 and the fourth valve spool 354 abut to seal the eccentric rotary valve, and the fifth valve spool 355 and the sixth valve spool 356 seal the eccentric rotary valve.
In some embodiments, the third valve element 353 and the fifth valve element 355 are provided with first teeth, the fourth valve element 354 and the sixth valve element 356 are provided with second teeth, and when the eccentric rotary valve is in the closed state, the third valve element 353 and the fourth valve element 354 abut, and the fifth valve element 355 and the sixth valve element 356 abut, so that the sealing performance of the eccentric rotary valve is improved by the meshing of the third teeth and the fourth teeth.
It will be appreciated that, in addition to the staggered teeth pattern shown, the third valve element 353 and the fifth valve element 355 may have no first teeth and the fourth valve element 354 and the sixth valve element 356 have no second teeth, such that when the eccentric rotary valve is in the closed position, the sealing of the eccentric rotary valve is enhanced by the direct abutment of the third valve element 353 and the fourth valve element 354 and the direct abutment of the fifth valve element 355 and the sixth valve element 356.
Alternatively, the third valve element 353 and the fifth valve element 355 may also be provided with inclined surfaces, and the fourth valve element 354 and the sixth valve element 356 may be provided with reverse inclined surfaces matching the inclined surfaces; or the third valve core 353 and the fifth valve core 355 are provided with inclined planes, and the fourth valve core 354 and the sixth valve core 356 are provided with reverse inclined planes matched with the inclined planes; when the eccentric rotary valve is in a closed state, the third valve element 353 and the fourth valve element 354 abut against each other, and the fifth valve element 355 and the sixth valve element 356 abut against each other, so that the sealing performance of the eccentric rotary valve is improved by matching the inclined surface and the reverse inclined surface.
Alternatively, grooves may be provided on the third valve element 353 and the fifth valve element 355, and protrusions which are matched with the grooves are provided on the fourth valve element 354 and the sixth valve element 356; or grooves are arranged on the fourth valve core 354 and the sixth valve core 356, and protrusions matched with the grooves are arranged on the third valve core 353 and the fifth valve core 355; when the eccentric rotary valve is in a closed state, the third valve core 353 and the fourth valve core 354 are abutted, the fifth valve core 355 and the sixth valve core 356 are abutted, and the sealing performance of the eccentric rotary valve is improved in a protruding and groove matching mode.
Alternatively, the third valve element 353 and the fifth valve element 355 may also be provided with stepped protrusions, and the fourth valve element 354 and the sixth valve element 356 may be provided with reverse stepped protrusions that mate with the stepped protrusions; or the fourth valve core 354 and the sixth valve core 356 are provided with stepped protrusions, and the third valve core 353 and the fifth valve core 355 are provided with reverse stepped protrusions matched with the stepped protrusions; when the eccentric rotary valve is in a closed state, the third valve spool 353 and the fourth valve spool 354 abut against each other, and the fifth valve spool 355 and the sixth valve spool 356 abut against each other, so that the sealing performance of the eccentric rotary valve is improved by the engagement of the stepped protrusion and the reverse stepped protrusion.
In some embodiments, the eccentric rotary valve includes a baffle 360, the number of the baffles 360 is 4, and the baffles 360 are fixedly disposed on the outer peripheral wall surfaces of the third valve spool 353, the fourth valve spool 354, the fifth valve spool 355, and the sixth valve spool 356, when the eccentric rotary valve is in the closed state, the third valve spool 353 and the fourth valve spool 354 abut against each other, and the fifth valve spool 355 and the sixth valve spool 356 abut against each other, so that the sealing performance of the eccentric rotary valve is improved by the abutment of the baffles 360.
In some embodiments, the drive assembly includes a first driver to drive the first valve spool 351 in motion and a second driver to drive the second valve spool 352 in motion and cause synchronous and opposite rotation of the first and second valve spools 351, 352; in this embodiment, the first driving member and the second driving member are both motors, and when the eccentric rotary valve needs to be opened or closed, the first valve spool 351 and the second valve spool 352 are controlled to be synchronously far away or close by an electric control method.
It is understood that a single motor, two gears, may be used to rotate the first valve spool 351 and the second valve spool 352 synchronously and reversely.
In some embodiments, a third tooth is provided on the first valve spool 351; the second valve body 352 is provided with fourth teeth, and when the eccentric rotary valve is in a closed state, the first valve body 351 and the second valve body 352 are abutted, and the sealing performance of the eccentric rotary valve is improved by the way that the third teeth and the fourth teeth are meshed.
It will be appreciated that the third tooth may take the form of any one of the first teeth described above and the fourth tooth may take the form of any one of the corresponding second teeth described above to improve the sealing of the eccentric rotary valve.
In some embodiments, the valve body 100 is fixedly provided with a water inlet 110 and a water outlet 120. When the eccentric rotary valve is opened or partially opened, liquid can flow out from the water inlet 110 to the water outlet 120; when the eccentric rotary valve is closed, liquid cannot flow from the inlet 110 to the outlet 120.
With reference to the above embodiments, the usage principle and the working process of the embodiments of the present invention are as follows:
the eccentric rotary valve comprises a valve body 100, a synchronizing device 200 and an adjusting device 300. The valve body 100 is fixedly provided with a water inlet 110, a water outlet 120, a mounting table 140 and a mounting shaft 150, the synchronizing gear 130 is rotatably connected to the outer peripheral wall surface of the valve body 100, the mounting shaft 150 is slidably and rotatably mounted on the mounting table 140, and the mounting table 140 is provided with a first connecting hole 141 and a second connecting hole 142.
The synchronizer 200 comprises a first synchronizer 210, a second synchronizer 220, a first slide bar 230 and a second slide bar 240, wherein the first synchronizer 210 and the second synchronizer 220 are both slidably arranged on the peripheral wall surface of the valve body 100, the first synchronizer 210 is fixedly connected to the mounting shaft 150, a first rack is fixedly arranged on the first synchronizer 210, a second rack is fixedly arranged on the second synchronizer 220, one end of the synchronizing gear 130 is meshed with the first rack, and the other end of the synchronizing gear 130 is meshed with the second rack; one end of the first slide bar 230 is fixedly connected to the first synchronous frame 210, and the other end is sleeved in the grooves of the third valve spool 353 and the fourth valve spool 354; in addition, one end of the second slide bar 240 is fixedly connected to the second synchronous frame 220, and the other end is sleeved in the grooves of the fifth valve core 355 and the sixth valve core 356.
The adjusting device 300 comprises a rotating wheel 310, a first gear 320, a first gear set 330, a second gear set 340, a valve core assembly 350 and a baffle plate 360, wherein the rotating wheel 310 is fixedly sleeved on the mounting shaft 150, and the first gear 320 is fixedly sleeved on the rotating wheel 310; the first gear set 330 includes a second gear 331 and a first gear shaft 332, the second gear 331 is fixedly sleeved on the first gear shaft 332, one end of the first gear shaft 332 is rotatably connected to the first connection hole 141, and the other end is fixedly connected to the first valve core 351; the second gear set 340 includes a third gear 341 and a second gear shaft 342, the third gear 341 is fixedly sleeved on the second gear shaft 342, the third gear 341 is always engaged with the second gear 331, one end of the second gear shaft 342 is rotatably connected to the second connection hole 142, and the other end is fixedly connected to the second valve core 352; the valve core assembly 350 includes a first valve core 351, a second valve core 352, a third valve core 353, a fourth valve core 354, a fifth valve core 355 and a sixth valve core 356, one end of the first valve core 351 is fixedly connected to the first gear shaft 332, the other end of the first valve core is hinged to the inner wall of the valve body 100, and the third valve core 354 and the fifth valve core 355 are slidably disposed on the second valve core 352; one end of the second valve core 352 is fixedly connected to the second gear shaft 342, the other end of the second valve core is hinged to the inner wall of the valve body 100, and the fourth valve core 354 and the sixth valve core 356 are slidably arranged on the second valve core 352; grooves matched with sliding rods are formed in the third valve spool 353, the fourth valve spool 354, the fifth valve spool 355 and the sixth valve spool 356, when the first sliding rod 230 moves upwards for a certain distance, the third valve spool 353 and the fourth valve spool 354 can be driven to move upwards, and the fifth valve spool 355 and the sixth valve spool 356 can be driven to move by the second sliding rod 240; the flapper 360 is 4 in number, and is fixedly disposed on the outer peripheral wall surfaces of the third valve spool 353, the fourth valve spool 354, the fifth valve spool 355, and the sixth valve spool 356.
When the first valve spool 351 and the second valve spool 352 are in a state of being closed or opened to a certain angle, one end of the first gear 320 is meshed with the second gear 331, and the other end of the first gear 320 is meshed with the third gear 341 at the same time, so that the first gear 320, the second gear 331 and the third gear 341 cannot rotate, the first gear shaft 332 and the second gear shaft 342 cannot rotate, and the positions of the first valve spool 351 and the second valve spool 352 are fixed.
When the valve is closed, the third valve core 353 and the fifth valve core 355 are in staggered tooth fit with the first valve core 351, and the fourth valve core 353 and the sixth valve core 356 are in staggered tooth fit with the second valve core 352, so that when the valve is closed, compared with a common form in which circular arcs are directly attached, the first valve core 351 and the second valve core 352 are better in sealing performance, and the first valve core 351 and the second valve core 352 are further improved in sealing performance due to the existence of the baffle plate 360.
When the valve needs to be opened, the rotating wheel 310 is manually driven to move upwards along the axis direction of the rotating wheel, so that the first gear 320 is only meshed with the second gear 331; on one hand, the first synchronous frame 210 moves upwards to enable the first slide bar 230 to move upwards, the first slide bar 230 is matched with grooves on the third valve core 353 and the fourth valve core 354 to drive the third valve core 353 and the fourth valve core 354 to move upwards, so that the third valve core 353 and the fifth valve core 355 are partially separated, the fourth valve core 354 and the sixth valve core 356 are separated, and resistance applied when the first valve core 351 and the second valve core 352 are opened is reduced; the upward movement of the first synchronizer 210 synchronously drives the second synchronizer 220 to move reversely (move downwards) through the synchronizer gear 130, so that the second slide rod 240 moves downwards, the fifth valve core 355 and the sixth valve core 356 move downwards through the cooperation of the second slide rod 240 with grooves on the fifth valve core 355 and the sixth valve core 356, the fifth valve core 355 and the third valve core 353 are partially disengaged, the sixth valve core 356 and the fourth valve core 354 are partially disengaged, and the resistance applied when the first valve core 351 and the second valve core 352 are opened is reduced; the rotating wheel 310 is rotated, the rotation of the first gear 320 drives the second gear 331 to rotate clockwise, the rotation of the second gear 331 drives the third gear 341 to rotate counterclockwise, so that the first valve core 351 and the second valve core 352 rotate synchronously and reversely, and because the first valve core 351 and the second valve core 352 are opened at two symmetrical sides, the first valve core 351 and the second valve core 352 are stressed relatively uniformly when being impacted by water flow, so that vibration is not easy to occur, and liquid flows out from the water inlet 110 to the water outlet 120.
After the first valve spool 351 and the second valve spool 352 are opened to a desired angle or fully opened, the rotating wheel 310 is manually driven to move downwards along the axis direction thereof, so that the first synchronization frame 210 moves downwards, the first slide rod 230 moves downwards, the third valve spool 353 and the fourth valve spool 354 are driven to move downwards through the matching of the first slide rod 230 and the grooves on the third valve spool 353 and the fourth valve spool 354, the third valve spool 353 and the fifth valve spool 355 are attached again, and the fourth valve spool 354 and the sixth valve spool 356 are attached again; the downward movement of the first synchronizer 210 synchronously drives the second synchronizer 220 to move in the reverse direction (upward movement) through the synchronizing gear 130, such that the second slide bar 240 moves upward, which drives the fifth valve core 355 and the sixth valve core 356 upward through the cooperation of the second slide bar 240 with the grooves of the fifth valve core 355 and the sixth valve core 356, such that the fifth valve core 355 and the third valve core 353 are re-engaged, such that the sixth valve core 356 and the fourth valve core 354 are re-engaged; the rotating wheel 310 is manually driven to move axially and downwards along the axis of the rotating wheel so that the first gear 320 is meshed with the second gear 331 and the third gear 341 simultaneously, the first gear shaft 332 and the second gear shaft 342 cannot rotate, and the positions of the first valve core 351 and the second valve core 352 are fixed.
When the valve needs to be closed, the rotating wheel 310 is manually driven to move upwards along the axis direction of the rotating wheel, so that the first gear 320 is only meshed with the second gear 331; on one hand, the first synchronous frame 210 moves upwards to enable the first slide bar 230 to move upwards, the first slide bar 230 is matched with grooves on the third valve core 353 and the fourth valve core 354 to drive the third valve core 353 and the fourth valve core 354 to move upwards, so that the third valve core 353 and the fifth valve core 355 are partially separated, the fourth valve core 354 and the sixth valve core 356 are separated, and resistance applied when the first valve core 351 and the second valve core 352 are opened is reduced; the upward movement of the first synchronizer 210 synchronously drives the second synchronizer 220 to move reversely (move downwards) through the synchronizer gear 130, so that the second slide rod 240 moves downwards, the fifth valve core 355 and the sixth valve core 356 move downwards through the cooperation of the second slide rod 240 with grooves on the fifth valve core 355 and the sixth valve core 356, the fifth valve core 355 and the third valve core 353 are partially disengaged, the sixth valve core 356 and the fourth valve core 354 are partially disengaged, and the resistance applied when the first valve core 351 and the second valve core 352 are opened is reduced; when the rotating wheel 310 is rotated, the rotation of the first gear 320 drives the second gear 331 to rotate counterclockwise, and the rotation of the third gear 341 drives the second gear 331 to rotate clockwise, so that the first valve core 351 and the second valve core 352 are synchronously closed, and the liquid cannot flow out from the water inlet 110 to the water outlet 120.
The features of the above embodiments may be arbitrarily combined, and for the sake of brevity, all possible combinations of the features in the above embodiments are not described, but should be construed as being within the scope of the present disclosure as long as there is no contradiction between the combinations of the features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent should be subject to the appended claims.

Claims (9)

1. An eccentric rotary valve, comprising:
a valve body;
the eccentric rotary valve is provided with an opening state and a closing state, and when the eccentric rotary valve is in the opening state, the first valve core and the second valve core are far away; in the closed state, the first valve spool and the second valve spool abut.
2. The eccentric rotary valve of claim 1, further comprising a drive assembly to drive synchronous and opposite movement of the first spool and the second spool.
3. The eccentric rotary valve of claim 2 wherein the drive assembly comprises a wheel, a first gear, a second gear, a third gear, a first gear shaft, and a second gear shaft, the wheel being slidably and rotatably disposed on the valve body; the first gear is arranged on the rotating wheel; one end of the first gear shaft is rotatably arranged on the valve body, and the other end of the first gear shaft is arranged on the first valve core; the second gear is arranged on the first gear shaft; one end of the second gear shaft is rotatably arranged on the valve body, and the other end of the second gear shaft is arranged on the second valve core; the third gear is arranged on the second gear shaft; the second gear is always meshed with the third gear; when the eccentric rotary valve is in the opening state or the closing state, one end of the first gear is meshed with the second gear, and the other end of the first gear is meshed with the third gear; when the eccentric rotary valve is switched between the opening state and the closing state, the first gear is meshed with the third gear.
4. The eccentric rotary valve of claim 3 further comprising a first synchronizer, a second synchronizer, a third spool, a fourth spool, a fifth spool, and a sixth spool, the first synchronizer disposed on the rotor; the second synchronous frame is slidably arranged on the valve body; the first and second synchronizers are capable of moving synchronously and in opposite directions; the third valve core and the fifth valve core are both arranged on the first valve core in a sliding manner, and first grooves are formed in the third valve core and the fourth valve core; the fourth valve core and the sixth valve core are both slidably arranged on the second valve core, and second grooves are formed in the fifth valve core and the sixth valve core; when the eccentric rotary valve is switched between the opening state and the closing state, the first synchronous frame drives the third valve core and the fourth valve core to move through the first groove, and the second synchronous frame drives the fifth valve core and the sixth valve core to move through the second groove; when the eccentric rotary valve is in the closed state, the third valve core and the fourth valve core are abutted to seal the eccentric rotary valve, and the fifth valve core and the sixth valve core are used for sealing the eccentric rotary valve.
5. The eccentric rotary valve of claim 4 wherein the third spool and the fifth spool each have first teeth disposed thereon and the fourth spool and the sixth spool each have second teeth disposed thereon, the first teeth and the second teeth abutting to seal the eccentric rotary valve when the eccentric rotary valve is in the closed state.
6. The eccentric rotary valve of claim 4, further comprising a flapper disposed on the third, fourth, fifth, and sixth spools, the flapper configured to seal the eccentric rotary valve when the eccentric rotary valve is in the closed state.
7. The eccentric rotary valve of claim 2 wherein the drive assembly includes a first driver to drive the first spool in motion and a second driver to drive the second spool in motion.
8. The eccentric rotary valve of claim 1 wherein the first spool has third teeth disposed thereon; a fourth tooth is arranged on the second valve core; the third tooth and the fourth tooth abut to seal the eccentric rotary valve when the eccentric rotary valve is in the closed state.
9. An eccentric rotary valve according to any of claims 1 to 8 wherein the valve body is provided with a water inlet and a water outlet.
CN202211243734.3A 2022-10-12 2022-10-12 Eccentric rotary valve Pending CN115306908A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202211243734.3A CN115306908A (en) 2022-10-12 2022-10-12 Eccentric rotary valve

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Application Number Priority Date Filing Date Title
CN202211243734.3A CN115306908A (en) 2022-10-12 2022-10-12 Eccentric rotary valve

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117088490A (en) * 2023-10-17 2023-11-21 四川发展环境科学技术研究院有限公司 Low-cost tap water treatment process

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Publication number Priority date Publication date Assignee Title
JPS5618168A (en) * 1979-07-19 1981-02-20 Kubota Ltd Flow control valve
JP2006189130A (en) * 2005-01-07 2006-07-20 Hitachi Ltd Valve open close confirmation device and work control system
CN104089040A (en) * 2014-07-28 2014-10-08 铁岭大沃阀门（集团）有限公司 Oppositely-opened type large-caliber hemispherical valve
CN204201158U (en) * 2014-11-05 2015-03-11 浙江海洋学院 A kind of double spool eccentric rotary regulating valve
CN211368720U (en) * 2019-11-19 2020-08-28 中国水利水电第八工程局有限公司 Full-pipe receiving hopper for high dam pouring roller compacted concrete
CN217003126U (en) * 2022-03-30 2022-07-19 南京大得科技有限公司 Resistance balance regulating valve for pulverized coal pipeline

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5618168A (en) * 1979-07-19 1981-02-20 Kubota Ltd Flow control valve
JP2006189130A (en) * 2005-01-07 2006-07-20 Hitachi Ltd Valve open close confirmation device and work control system
CN104089040A (en) * 2014-07-28 2014-10-08 铁岭大沃阀门（集团）有限公司 Oppositely-opened type large-caliber hemispherical valve
CN204201158U (en) * 2014-11-05 2015-03-11 浙江海洋学院 A kind of double spool eccentric rotary regulating valve
CN211368720U (en) * 2019-11-19 2020-08-28 中国水利水电第八工程局有限公司 Full-pipe receiving hopper for high dam pouring roller compacted concrete
CN217003126U (en) * 2022-03-30 2022-07-19 南京大得科技有限公司 Resistance balance regulating valve for pulverized coal pipeline

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117088490A (en) * 2023-10-17 2023-11-21 四川发展环境科学技术研究院有限公司 Low-cost tap water treatment process
CN117088490B (en) * 2023-10-17 2024-01-02 四川发展环境科学技术研究院有限公司 Low-cost tap water treatment process

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