CN114321400A - Stop valve for reducing operation resistance of valve handle - Google Patents
Stop valve for reducing operation resistance of valve handle Download PDFInfo
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- CN114321400A CN114321400A CN202210185304.4A CN202210185304A CN114321400A CN 114321400 A CN114321400 A CN 114321400A CN 202210185304 A CN202210185304 A CN 202210185304A CN 114321400 A CN114321400 A CN 114321400A
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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Abstract
The invention relates to a stop valve technology, which is used for solving the problems that when a stop valve is closed, a worker is inconvenient to close due to large operation resistance and the interior of the stop valve is easy to block due to impurities, in particular to a stop valve capable of reducing the operation resistance of a valve handle, which comprises a stop valve body, a valve cover, a hand wheel, a valve rod, a plugging plate and an upper valve clack, wherein the upper end of the stop valve body is connected with the valve cover, and the middle position in the valve cover is rotationally connected with the valve rod; according to the invention, through the communication between the upper through hole and the lower through hole which are formed on the upper valve clack and the lower valve clack, the circulating material in the stop valve can circulate from the through hole, the resistance force applied when the valve clack of the stop valve is closed is reduced, the compression distance of the extrusion plate to the telescopic spring is gradually increased in the descending process of the valve clack, the elastic acting force of the telescopic spring for pressing the valve clack is gradually increased, the operation resistance of a worker is reduced, and the acting force for driving the valve rod to rotate is generated through the rotation of the spiral fan blades, so that the operation resistance of the worker is favorably reduced.
Description
Technical Field
The invention relates to a stop valve technology, in particular to a stop valve capable of reducing the operating resistance of a valve handle.
Background
The stop valve is also called as a stop valve, belonging to a forced sealing type valve, so that when the valve is closed, pressure must be applied to the valve clack to force the sealing surface not to leak, when a medium enters the valve from the lower part of the valve clack, the resistance to be overcome by the operating force is the friction force of the valve rod and the packing and the thrust generated by the pressure of the medium, and the force for closing the valve is larger than the force for opening the valve;
in the prior art, in the process of closing the stop valve, the upper valve clack and the lower valve clack integrally move to the position of a circulation hole on the blocking plate, and in the process of gradually reducing the distance between the whole body of the upper valve clack and the lower valve clack and the blocking plate, because an opening for circulating substances in the stop valve to circulate is reduced, the circulation speed is increased under the action of the circulation pressure of the circulating substances, and acting force for hindering the downward movement trend of the whole body of the upper valve clack and the lower valve clack is provided, so that the operating resistance of a worker on a valve rod connecting the upper valve clack and the lower valve clack through a hand wheel is large, and the stop valve is inconvenient for the worker to close; in order to reduce the operating resistance of a worker to the stop valve when the stop valve is closed, a spring is installed in the stop valve, one end of the spring is connected to the valve clack, the other end of the spring is connected to the inner wall of the stop valve, the operating resistance of the worker is reduced by the aid of the pushing acting force of the spring to the valve clack, the rebounding acting force of the spring is large when the spring is extruded or stretched, the rebounding acting force is reduced after the spring is restored to the original length, the operating resistance of the valve clack is gradually increased when the valve clack is closed, the rebounding acting force given by the spring is gradually reduced along with the extension of the spring, and the effect of reducing the operating resistance is difficult to achieve when the valve clack is close to the blocking plate; when the material circulation is carried out in the stop valve, impurities carried in the circulating material are easily clamped at the positions of the lower through hole and the upper through hole when the material circulation is carried out, so that the positions of the upper through hole and the lower through hole are easily blocked, the material circulation is blocked, the impurities are clamped at the positions of the through holes to block the rotary closing between the upper valve clack and the lower valve clack in the valve body of the stop valve, the regulating resistance of a worker to the valve clack is increased, and the inconvenience is brought to the worker;
in view of the above technical problem, the present application proposes a solution.
Disclosure of Invention
The invention aims to enable circulating substances in the stop valve to be circulated from the through hole position through the communication between the upper through hole and the lower through hole which are arranged on the upper valve clack and the lower valve clack, the resistance force applied when the valve clack of the stop valve is closed is reduced, the compression distance of the extrusion plate to the expansion spring is gradually increased in the descending process of the valve clack, the elastic acting force of the expansion spring for pressing the valve clack is gradually increased, the operation resistance of workers is reduced, the acting force for driving the valve rod to rotate is generated by the rotation of the spiral fan blades, the operation resistance of the workers is favorably reduced, the problems that the operation resistance of the workers is large and the closing is inconvenient when the stop valve is closed and the interior of the stop valve is easily blocked by impurities are solved, and the stop valve for reducing the operation resistance of the valve handle is provided.
The purpose of the invention can be realized by the following technical scheme:
a stop valve for reducing the operating resistance of a valve handle comprises a stop valve body, a valve cover, a hand wheel, a valve rod, a plugging plate and an upper valve clack, wherein the upper end of the stop valve body is connected with the valve cover, the middle position inside the valve cover is rotatably connected with the valve rod, the upper end of the valve cover is rotatably connected with the hand wheel corresponding to the position of the valve rod, the lower end of the valve rod is connected with the upper valve clack, the plugging plate is integrally formed inside the stop valve body corresponding to the position of the upper valve clack, the lower surface of the upper valve clack is rotatably connected with the lower valve clack, an inner rotary rod is integrally formed on the upper surface of the lower valve clack corresponding to the middle position inside the valve rod, the upper end of the inner rotary rod is connected with a rotary disc, and an adjusting assembly is arranged inside the valve rod corresponding to the position of the inner rotary rod;
one side of the upper surface of the upper valve clack is connected with a telescopic spring, the upper end of the telescopic spring is connected with an extrusion plate, one side of the outer side wall of the extrusion plate is rotatably connected with a screw rod, and a driving assembly is arranged on the upper surface of the upper valve clack at a position corresponding to the telescopic spring;
go up the valve clack upper surface and be close to expanding spring one side rotates through the connecting axle and is connected with helical fan, valve rod lateral wall below is connected with the backup pad, the backup pad upper surface corresponds connecting axle position department is connected with the transmission case, the inside correspondence of stop valve body transmission case position department is provided with drive assembly.
As a preferred embodiment of the present invention, the adjusting assembly includes an inner cavity, a plurality of limit cavities are uniformly distributed in the inner cavity, a limit block is integrally formed at a position of the inner rotating rod corresponding to the limit cavities, a circulation limit groove is formed on the upper surface of the valve rod, a blocking limit groove is formed on one side of the upper surface of the valve rod close to the circulation limit groove, a sliding cavity is formed at a position of the outer side wall of the inner rotating rod corresponding to the circulation limit groove, and a sliding block is slidably connected inside the sliding cavity.
As a preferred embodiment of the present invention, the adjusting assembly further includes an upper through hole, a lower through hole is formed in a position corresponding to the upper through hole on the upper surface of the lower valve flap, a rotating block is integrally formed on the outer side of the upper surface of the lower valve flap, a rotating cavity is formed in a position corresponding to the rotating block on the lower surface of the upper valve flap, a sealing pad is connected to the lower surface of the upper valve flap, which is close to the outer side of the lower valve flap, and a sealing plate is connected to the lower surface of the upper valve flap.
As a preferred embodiment of the present invention, the driving assembly includes a fluted disc, the upper end of the screw rod is connected with an adjusting toothed column, the upper end of the adjusting toothed column and the lower end of the screw rod are both connected with a connecting rod, the outer side of the upper surface of the upper valve flap corresponding to the telescopic spring is connected with a telescopic hose, and the inner side of the upper surface of the upper valve flap corresponding to the telescopic spring is connected with a limiting rod.
As a preferred embodiment of the present invention, the transmission assembly includes a rotating frame, an inner gear ring is slidably connected inside the rotating frame, and a connecting gear is connected to a position corresponding to the inner gear ring at the upper end of the connecting shaft.
As a preferred embodiment of the present invention, one end of the connecting shaft close to the interior of the transmission case is connected with a transmission wheel, the two transmission wheels are in transmission connection with each other through a transmission belt, and a volute spiral spring is connected to a position on the outer side wall of the connecting shaft, corresponding to the transmission case, where the connecting shaft is connected with the connecting gear.
Compared with the prior art, the invention has the beneficial effects that:
1. the rotation of the lower valve clack arranged below the upper valve clack is adjusted through the internal rotating rod, so that when the valve clack of the stop valve is closed, circulating substances in the stop valve can circulate from the position of the through hole through the communication between the upper through hole and the lower through hole which are formed in the upper valve clack and the lower valve clack, the resistance applied when the valve clack of the stop valve is closed is reduced, and the operation resistance of workers is reduced;
2. the screw rod is always driven to rotate by the adjusting toothed column in the up-and-down moving process of the valve rod, and the rotating speed is higher than that of the valve rod, so that when the resistance of the valve clack is gradually increased in the descending process, the compression distance of the extrusion plate on the telescopic spring is gradually increased, the elastic acting force of the telescopic spring on the valve clack is gradually increased, and the operation resistance of a worker is favorably reduced;
3. through last through-hole position department circulation material drive helical fan blade and rotate, helical fan blade can carry out the breakage to the impurity that the card was established in last through-hole position department, prevent to cause the circulation that blocks the inside material of influence stop valve, helical fan blade's rotation effort passes through the transmission case and drives the connection gear rotation, connecting gear and the mutual gomphosis of interior ring gear can drive interior ring gear and rotate, interior ring gear and the mutual gomphosis of regulation tooth post, can drive the fluted disc of being connected with the valve rod and rotate, the rotation that makes helical fan blade has the drive valve rod pivoted effort, be favorable to slowing down staff's operating resistance.
Drawings
In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.
FIG. 1 is a main body structure view of the present invention;
FIG. 2 is a view of the internal structure of the valve body of the stop valve of the present invention;
FIG. 3 is a structural view of the internal rotation mechanism of the present invention;
FIG. 4 is an enlarged view of portion A of FIG. 3 according to the present invention;
FIG. 5 is a connection structure of the lower valve flap and the upper valve flap of the present invention;
FIG. 6 is a view of the structure of the circulation limiting groove of the present invention;
FIG. 7 is a view showing the structure of the elastic means of the present invention;
FIG. 8 is an internal structure view of the bellows of the present invention;
FIG. 9 is a schematic view of the impurity removal mechanism of the present invention;
FIG. 10 is a view showing the structure of the spiral fan blade of the present invention.
In the figure: 1. a stop valve body; 2. an internal rotation mechanism; 21. a lower valve clack; 22. an inner rotary rod; 23. a limiting block; 24. a limiting cavity; 25. rotating the disc; 26. a gasket; 27. rotating the block; 28. a rotation chamber; 29. an upper through hole; 210. a lower through hole; 211. a circulation limiting groove; 212. a slider; 213. a sliding cavity; 214. plugging the limit groove; 3. an elastic mechanism; 31. a fluted disc; 32. adjusting the tooth column; 33. a connecting rod; 34. a screw; 35. a flexible hose; 36. a tension spring; 37. a limiting rod; 38. a pressing plate; 4. a impurity removing mechanism; 41. a rotating frame; 42. an inner gear ring; 43. a transmission case; 44. a support plate; 45. a connecting shaft; 46. a connecting gear; 47. a helical fan blade; 5. a valve cover; 6. a hand wheel; 7. a valve stem; 8. a plugging plate; 9. and an upper valve flap.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood 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.
Example 1:
referring to fig. 1-6, a stop valve for reducing the operating resistance of a valve handle comprises a stop valve body 1, a valve cover 5, a hand wheel 6, a valve rod 7, a blocking plate 8 and an upper valve flap 9, wherein the upper end of the stop valve body 1 is connected with the valve cover 5, the middle position inside the valve cover 5 is rotatably connected with the valve rod 7, the upper end of the valve cover 5 is rotatably connected with the hand wheel 6 corresponding to the position of the valve rod 7, the lower end of the valve rod 7 is connected with the upper valve flap 9, and the blocking plate 8 is integrally formed inside the stop valve body 1 corresponding to the position of the upper valve flap 9;
the lower surface of the upper valve clack 9 is rotatably connected with a lower valve clack 21, the outer diameter of the lower valve clack 21 is the same as the inner diameter of a sealing gasket 26, an inner rotary rod 22 is integrally formed at the position, corresponding to the middle position inside the valve rod 7, of the upper surface of the lower valve clack 21, a rotary disc 25 is connected to the upper end of the inner rotary rod 22, the rotary disc 25 can adjust the rotation of the inner rotary rod 22, an inner cavity is formed at the position, corresponding to the inner rotary rod 22, inside the valve rod 7, a plurality of uniformly distributed limiting cavities 24 are formed in the inner cavity, a limiting block 23 is integrally formed at the position, corresponding to the limiting cavities 24, of the inner rotary rod 22, the limiting cavities 24 and the limiting block 23 are mutually combined to enable the position, inside the valve rod 7, of the inner rotary rod 22 to be difficult to move, the inner rotary rod 22 can be placed inside the valve rod 7 divided into two halves, the installation of the inner rotary rod 22 is realized by welding the other half valve rod 7 and the valve rod 7, the upper surface of the valve rod 7 is provided with a circulation limiting groove 211, the included angle between the circulation limiting groove 211 and the plugging limiting groove 214 is 45 degrees, when the sliding block 212 connected with the outer side of the internal rotating rod 22 is positioned in the circulation limiting groove 211, the upper valve flap 9 corresponds to the upper through hole 29 and the lower through hole 210 on the lower valve flap 21, so as to achieve the communication effect, at the moment, the whole valve flap formed by the upper valve flap 9 and the lower valve flap 21 plugs the circulation of water flow in the stop valve, the water flow can circulate from the positions of the upper through hole 29 and the lower through hole 210, so that the function of the stop valve at the moment is equivalent to the function of a throttle valve, one side of the upper surface of the valve rod 7, which is close to the circulation limiting groove 211, is provided with the plugging limiting groove 214, when the sliding block 212 connected with the outer side of the internal rotating rod 22 is positioned in the plugging limiting groove 214, the upper through hole 29 and the lower through hole 210 on the upper valve flap 9 and the lower valve flap 21 are mutually staggered, and mutually sheltered to achieve the plugging effect, the sliding cavity 213 is arranged at the position, which corresponds to the outer side wall of the circulation limiting groove 211, of the internal rotating rod 22, the sliding cavity 213 is connected with a sliding block 212 in a sliding way, the height of the sliding cavity 213 is twice of the height of the sliding block 212, when the sliding block 212 slides to the uppermost part of the sliding cavity 213 in the sliding cavity 213, the sliding block 212 is separated from the circulation limiting groove 211 and the blocking limiting groove 214, so that the internal rotating rod 22 can rotate, when the sliding block 212 slides to the lowermost part of the sliding cavity 213 in the sliding cavity 213, the sliding block 212 is inserted into the circulation limiting groove 211 or the blocking limiting groove 214, so that the rotation of the internal rotating rod 22 is limited, the upper surface of the upper valve flap 9 is provided with four evenly distributed upper through holes 29, the upper surface of the lower valve flap 21 is provided with lower through holes 210 corresponding to the positions of the upper through holes 29, the sizes and the sizes of the upper through holes 29 and the lower through holes 210 are the same, the outer side of the upper surface of the lower valve flap 21 is integrally formed with a rotating block 27, the rotating block 27 is in a right-angle crank shape, the lower surface of the upper valve flap 9 is provided with a rotating cavity 28 corresponding to the position of the rotating block 27, the shape of the rotating cavity 28 is the same as the shape and size of the rotating block 27, so that the upper valve flap 9 and the lower valve flap 21 are embedded in the rotating cavity 28 through the rotating block 27 during rotation and cannot be separated from each other, a sealing gasket 26 is connected to the outer side, close to the lower valve flap 21, of the lower surface of the upper valve flap 9, the sealing gasket 26 is used for sealing a gap between the sealing plate 8 and the upper valve flap 9 and the lower valve flap 21 after the upper valve flap 9 and the lower valve flap 21 integrally move to the position of the sealing plate 8, a sealing plate is connected to the lower surface of the upper valve flap 9, the shape and size of the sealing plate are the same as those of the lower valve flap 21, holes with the same shape and size are formed in the position, corresponding to the upper through hole 29, of the sealing plate, and the sealing plate can seal the gap between the upper valve flap 9 and the lower valve flap 21;
in the prior art, in the process of closing the stop valve, the upper valve flap 9 and the lower valve flap 21 move to the position of a circulation hole on the blocking plate 8 as a whole, and in the process that the distance between the whole of the upper valve flap 9 and the lower valve flap 21 and the blocking plate 8 is gradually reduced, because an opening for circulating substances inside the stop valve is reduced, the circulation speed is increased under the action of the circulation pressure of the circulating substances, and an acting force for blocking the downward movement trend of the whole of the upper valve flap 9 and the lower valve flap 21 is generated, so that the operating resistance of a worker to a valve rod 7 connecting the upper valve flap 9 and the lower valve flap 21 through a hand wheel 6 is large, and the stop valve is inconvenient to close by the worker;
when the stop valve is closed, the sliding block 212 connected with the outer side of the inner rotary rod 22 in a sliding manner is moved to the uppermost part of the sliding cavity 213, the sliding block 212 slides out of the blocking limiting groove 214, the inner rotary rod 22 can rotate under the action of the rotary disc 25, the sliding block 212 slides on the upper surface of the valve body 7 in the rotating process, automatically slides to the inside of the circulation limiting groove 211 under the action of self gravity when sliding to the position of the circulation limiting groove 211, limits the position of the inner rotary rod 22 in the valve rod 7 again, drives the lower valve clack 21 to rotate when the inner rotary rod 22 rotates, enables the lower through hole 210 on the lower valve clack 21 and the upper through hole 29 on the upper valve clack 9 to achieve the communication effect correspondingly, enables the whole of the upper valve clack 9 and the lower valve clack 21 to move to the blocking plate 8, and enables the circulating substances in the stop valve to be circulated from the position of the gradually reduced opening position and the position of the upper through hole 29, the operating resistance of the worker to the valve rod 7 is reduced due to the reduction of the resistance of the circulating substances, after the whole of the upper valve flap 9 and the lower valve flap 21 and the plugging plate 8 are plugged, the worker can operate the inner rotary rod 22 to rotate, the sliding block 212 returns to the inside of the plugging limiting groove 214 from the inside of the circulating limiting groove 211, the upper valve flap 9 and the lower valve flap 21 are staggered with each other to achieve the effect of mutual plugging, the amount of the circulating substances is small due to the small size of the upper through hole 29 and the lower through hole 210, and the operating resistance to the rotation of the inner rotary rod 22 is small.
Example 2:
referring to fig. 7-8, one side of the upper surface of the upper valve flap 9 is connected with an extension spring 36, one end of the extension spring 36 is connected to the upper valve flap 9, the other end of the extension spring 36 is connected to an extrusion plate 38, a threaded hole is formed in the upper surface of the extrusion plate 38 corresponding to the position of the screw 34, a sliding hole is formed in the upper surface of the extrusion plate 38 corresponding to the position of the limit rod 37, so that the rotation of the screw 34 can drive the extrusion plate 38 to move up and down on the limit rod 37, one side of the outer side wall of the extrusion plate 38 is rotatably connected with the screw 34, a fluted disc 31 is connected below the outer side wall of the valve rod 7, the upper end of the screw 34 is connected with an adjusting tooth post 32, the upper end of the adjusting tooth post 32 and the lower end of the screw 34 are both connected with a connecting rod 33, the fluted disc 31 can drive the adjusting tooth post 32 connected to the inner wall of the stop valve body 1 through the connecting rod 33 to rotate in the process of the rotation along with the valve rod 7, the upper surface of the upper valve clack 9 is connected with a telescopic hose 35 corresponding to the outer side of the telescopic spring 36, and the upper surface of the upper valve clack 9 is connected with a limiting rod 37 corresponding to the inner side of the telescopic spring 36;
in the prior art, in order to reduce the operating resistance of a worker to a stop valve when the stop valve is closed, a spring is mostly installed inside the stop valve, one end of the spring is connected to a valve clack, the other end of the spring is connected to the inner wall of the stop valve, the operating resistance of the worker is reduced by utilizing the pushing acting force of the spring to the valve clack, the rebounding acting force of the spring is large when the spring is extruded or stretched, the rebounding acting force is reduced after the spring is restored to the original length, the operating resistance of the valve clack is gradually increased when the valve clack is closed, the rebounding acting force given by the spring is gradually reduced along with the extension of the spring, and the effect of reducing the operating resistance is difficult to realize when the valve clack is close to a plugging plate 8;
when the stop valve is closed, the fluted disc 31 connected to the valve rod 7 is driven to rotate in the rotating process of the valve rod 7, the fluted disc 31 is mutually embedded with the adjusting tooth column 32 connected to the inner wall of the stop valve through the connecting rod 33, and the fluted disc 31 moves downwards along with the valve rod 7 in the rotating process of the valve rod 7, keeps contact with the outer wall of the adjusting tooth column 32 all the time in the moving process, the screw rod 34 connected with the adjusting tooth column 32 moves the extrusion plate 38 limited by the limit rod 37 downwards on the outer side wall of the screw rod 34 during the rotation, so that the extrusion plate 38 descends along with the descending of the valve clack position during the descending of the valve clack position, the expansion spring 36 connected between the valve clack and the extrusion plate 38 descends along with the descending of the valve clack position, the rebound acting force on the valve clack can not be changed too much, and the effect of slowing down the operation resistance of the working personnel is achieved.
Example 3:
referring to fig. 9-10, a spiral fan blade 47 is rotatably connected to a side of the upper surface of the upper valve flap 9 close to the extension spring 36 through a connecting shaft 45, the diameter of the spiral fan blade 47 is smaller than the inner diameter of the upper through hole 29, so that the spiral fan blade 47 can rotate inside the upper through hole 29, a support plate 44 is connected to a lower portion of the outer side wall of the valve stem 7, a transmission box 43 is connected to a position of the upper surface of the support plate 44 corresponding to the connecting shaft 45, a rotating frame 41 is connected to an upper portion of the inner side wall of the stop valve body 1, an inner gear ring 42 is slidably connected to the inside of the rotating frame 41, the inner gear ring 42 is engaged with the adjusting gear post 32, so that the inner gear ring 42 can rotate under the driving of the adjusting gear post 32, a connecting gear 46 is connected to an upper end of the connecting shaft 45 corresponding to the position of the inner gear ring 42, the connecting gear 46 is engaged with the inner gear ring 42, and one end of the connecting shaft 45 close to the inside of the transmission box 43 is connected with a transmission wheel, the two transmission rotating wheels are in transmission connection with each other through a transmission belt, a volute spiral spring is connected to the position, corresponding to the transmission box 43, on the outer side wall of a connecting shaft 45 connected with the connecting gear 46, one end of the volute spiral spring is connected to the inside of a sliding groove formed in the inner wall of the transmission rotating wheel in a sliding mode, and the other end of the volute spiral spring is connected to the outer wall of the connecting shaft 45 connected with the connecting gear 46;
in the prior art, when the material inside the stop valve circulates, impurities carried in the circulating material are easily clamped at the positions of the lower through hole 210 and the upper through hole 29 when the material circulates, so that the positions of the upper through hole 29 and the lower through hole 210 are easily blocked, the circulation of the material is blocked, the impurities are clamped at the positions of the through holes to block the rotary closing between the upper valve clack 9 and the lower valve clack 21 inside the valve body 1 of the stop valve, the regulating resistance of a worker to the valve clacks is increased, and the inconvenience is brought to the worker;
the spiral fan blades 47 rotatably connected to the lower surface of the supporting plate 44 at the positions corresponding to the upper through holes 29 can be driven by the circulating material in the stop valve body 1 to rotate, the connecting shaft 45 connected to the spiral fan blades 47 drives the connecting shaft 45 connected to the connecting gear 46 to rotate through the transmission case 43, the connecting gear 46 and the inner ring gear 42 are mutually embedded, the spiral fan blades 47 have an acting force for driving the inner ring gear 42 to rotate, the inner ring gear 42 and the adjusting posts 32 are mutually embedded, the adjusting posts 32 and the fluted disc 31 connected to the valve rod 7 are mutually embedded, the rotation of the spiral fan blades 47 has an acting force for driving the valve rod 7 to rotate, the rotating operation resistance of the valve rod 7 is reduced, the spiral fan blades 47 can crush the impurities clamped at the positions of the upper through holes 29 during the rotation process, so that the impurities at the positions of the lower through holes 210 can be pushed to the positions of the upper through holes 29 under the action of the pushing force of the circulating material, and the frictional resistance between the valve rod 7 and the valve cover 5 is greater than the frictional resistance between the connecting block at one end of the volute spiral spring and the inner wall of the upper chute of the transmission rotating wheel, so that the spiral fan blade 47 only has the acting force for driving the valve rod 7 to rotate, and the valve rod 7 cannot be driven to rotate independently.
When the invention is used, a worker can move the valve rod 7 which is in threaded connection with the hand wheel 6 downwards to close the stop valve by rotating the hand wheel 6, the stop valve moves the sliding block 212 which is in sliding connection with the outer side of the inner rotary rod 22 to the uppermost part of the sliding cavity 213 in the closing process, the sliding block 212 slides out of the blocking limiting groove 214, the inner rotary rod 22 can rotate under the action of the rotating disc 25, the sliding block 212 slides on the upper surface of the valve rod 7 in the rotating process, automatically slides into the flowing limiting groove 211 under the action of self gravity when sliding to the position of the flowing limiting groove 211, limits the position of the inner rotary rod 22 in the valve rod 7 again, the inner rotary rod 22 drives the lower valve clack 21 to rotate so that the lower through hole 210 on the lower valve clack 21 and the upper through hole 29 on the upper valve clack 9 correspond to each other to achieve the communication effect, and when the whole of the upper valve clack 9 and the lower valve clack 21 moves towards the blocking plate 8, the flow-through material inside the stop valve can flow through not only the opening position which is gradually reduced, but also the upper through hole 29;
the valve rod 7 drives the fluted disc 31 connected to the valve rod 7 to rotate in the rotating process, the fluted disc 31 is mutually embedded with the adjusting tooth column 32 connected to the inner wall of the stop valve through the connecting rod 33, the fluted disc 31 moves downwards along with the valve rod 7 in the rotating process, the fluted disc is always in contact with the outer wall of the adjusting tooth column 32 in the moving process, and the screw 34 connected with the adjusting tooth column 32 moves downwards on the outer side wall of the screw 34 in the rotating process, so that the extrusion plate 38 limited by the limiting rod 37 moves downwards on the outer side wall of the screw 34, and the extrusion plate 38 descends along with the position in the descending process of the valve clack position;
the spiral fan blades 47 rotatably connected to the lower surface of the supporting plate 44 corresponding to the upper through hole 29 can be driven by the circulating material inside the stop valve body 1 to rotate, so that the connecting shaft 45 connected to the spiral fan blades 47 drives the connecting shaft 45 connected to the connecting gear 46 to rotate through the transmission case 43, the connecting gear 46 and the inner gear ring 42 are mutually embedded, so that the spiral fan blades 47 have an acting force for driving the inner gear ring 42 to rotate, the inner gear ring 42 and the adjusting gear column 32 are mutually embedded, the adjusting gear column 32 and the fluted disc 31 connected to the valve rod 7 are mutually embedded, so that the rotation of the spiral fan blades 47 has an acting force for driving the valve rod 7 to rotate, the rotating operation resistance of the valve rod 7 is reduced, the spiral fan blades 47 can crush the impurities clamped at the upper through hole 29 during the rotating process, and the impurities cannot block the upper through hole 29, the impurities at the position of the lower through hole 210 can be pushed to the position of the upper through hole 29 under the action of the pushing force of the flowing substance;
after the whole of the upper valve clack 9 and the lower valve clack 21 and the plugging plate 8 are plugged, a worker can operate the internal rotating rod 22 to rotate, so that the sliding block 212 returns to the inside of the plugging limiting groove 214 from the inside of the flowing limiting groove 211, the upper valve clack 9 and the lower valve clack 21 are mutually staggered to achieve the effect of mutual plugging, the upper through hole 29 and the lower through hole 210 are small in quantity of flowing substances due to small size, and the operating resistance to the rotation of the internal rotating rod 22 is small.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise forms disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (6)
1. The stop valve capable of reducing the operating resistance of the valve handle comprises a stop valve body (1), a valve cover (5), a hand wheel (6), a valve rod (7), a plugging plate (8) and an upper valve flap (9), wherein the upper end of the stop valve body (1) is connected with the valve cover (5), the valve rod (7) is rotatably connected with the middle position inside the valve cover (5), the upper end of the valve cover (5) corresponds to the position of the valve rod (7) and is rotatably connected with the hand wheel (6), the lower end of the valve rod (7) is connected with an upper valve flap (9), the internal part of the stop valve body (1) corresponds to the position of the upper valve flap (9) and is integrally formed with the plugging plate (8), the stop valve is characterized in that the lower surface of the upper valve flap (9) is rotatably connected with a lower valve flap (21), the upper surface of the lower valve flap (21) corresponds to the middle position inside the valve rod (7) and is integrally formed with an inner rotary rod (22), the upper end of the inner rotating rod (22) is connected with a rotating disc (25), and an adjusting component is arranged in the valve rod (7) at a position corresponding to the inner rotating rod (22);
one side of the upper surface of the upper valve clack (9) is connected with a telescopic spring (36), the upper end of the telescopic spring (36) is connected with a squeezing plate (38), one side of the outer side wall of the squeezing plate (38) is rotatably connected with a screw rod (34), and a driving assembly is arranged at the position, corresponding to the telescopic spring (36), of the upper surface of the upper valve clack (9);
go up valve clack (9) upper surface and be close to expanding spring (36) one side is rotated through connecting axle (45) and is connected with helical fan blade (47), valve rod (7) lateral wall below is connected with backup pad (44), backup pad (44) upper surface corresponds connecting axle (45) position department is connected with transmission case (43), stop valve body (1) inside corresponds transmission case (43) position department is provided with drive assembly.
2. The stop valve for reducing the operational resistance of the valve handle according to claim 1, wherein the adjusting assembly comprises an inner cavity, a plurality of evenly distributed limiting cavities (24) are formed inside the inner cavity, a limiting block (23) is integrally formed at a position of the inner rotating rod (22) corresponding to the limiting cavities (24), a circulation limiting groove (211) is formed in the upper surface of the valve rod (7), a blocking limiting groove (214) is formed in one side, close to the circulation limiting groove (211), of the upper surface of the valve rod (7), a sliding cavity (213) is formed in the outer side wall of the inner rotating rod (22) corresponding to the circulation limiting groove (211), and a sliding block (212) is slidably connected inside the sliding cavity (213).
3. The stop valve for reducing the operating resistance of the valve handle according to claim 1, wherein the adjusting assembly further comprises an upper through hole (29), a lower through hole (210) is formed in the upper surface of the lower valve flap (21) corresponding to the upper through hole (29), a rotating block (27) is integrally formed outside the upper surface of the lower valve flap (21), a rotating cavity (28) is formed in the lower surface of the upper valve flap (9) corresponding to the rotating block (27), a sealing gasket (26) is connected to the outer side of the lower surface of the upper valve flap (9) close to the lower valve flap (21), and a sealing plate is connected to the lower surface of the upper valve flap (9).
4. The stop valve for reducing the operating resistance of the valve handle according to claim 1, wherein the driving assembly comprises a fluted disc (31), an adjusting toothed column (32) is connected to the upper end of the screw rod (34), a connecting rod (33) is connected to both the upper end of the adjusting toothed column (32) and the lower end of the screw rod (34), a flexible hose (35) is connected to the upper surface of the upper valve flap (9) corresponding to the outer side of the flexible spring (36), and a limit rod (37) is connected to the upper surface of the upper valve flap (9) corresponding to the inner side of the flexible spring (36).
5. A stop valve for reducing the operational resistance of a valve handle as claimed in claim 1, wherein the transmission assembly comprises a rotating frame (41), an inner gear ring (42) is slidably connected inside the rotating frame (41), and a connecting gear (46) is connected to the upper end of the connecting shaft (45) at a position corresponding to the inner gear ring (42).
6. The stop valve for reducing the operating resistance of the valve handle according to claim 1, wherein one end of the connecting shaft (45) close to the inside of the transmission case (43) is connected with a transmission wheel, the two transmission wheels are in transmission connection with each other through a transmission belt, and a volute spring is connected to the outer side wall of the connecting shaft (45) connected with the connecting gear (46) at a position corresponding to the transmission case (43).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210185304.4A CN114321400B (en) | 2022-02-28 | 2022-02-28 | Stop valve for reducing valve handle operation resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210185304.4A CN114321400B (en) | 2022-02-28 | 2022-02-28 | Stop valve for reducing valve handle operation resistance |
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| Publication Number | Publication Date |
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| CN114321400A true CN114321400A (en) | 2022-04-12 |
| CN114321400B CN114321400B (en) | 2023-06-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210185304.4A Active CN114321400B (en) | 2022-02-28 | 2022-02-28 | Stop valve for reducing valve handle operation resistance |
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| CN114321400B (en) | 2023-06-30 |
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Denomination of invention: A globe valve that reduces the operating resistance of the valve handle Effective date of registration: 20230918 Granted publication date: 20230630 Pledgee: Zhejiang Fuyang Rural Commercial Bank branch Limited by Share Ltd. Silver Lake Pledgor: HANGZHOU FOSSON VALVES CO.,LTD. Registration number: Y2023980057036 |