CN114321400B - Stop valve for reducing valve handle operation resistance - Google Patents
Stop valve for reducing valve handle operation resistance Download PDFInfo
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- CN114321400B CN114321400B CN202210185304.4A CN202210185304A CN114321400B CN 114321400 B CN114321400 B CN 114321400B CN 202210185304 A CN202210185304 A CN 202210185304A CN 114321400 B CN114321400 B CN 114321400B
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- valve clack
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- clack
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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
Abstract
The invention relates to a stop valve technology, which is used for solving the problems that when a stop valve is closed, the operation resistance of a worker is large, the stop valve is inconvenient to close, and the interior of the stop valve is easy to block due to impurities, in particular to a stop valve for reducing the operation resistance of a valve handle, and the stop valve 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 in the upper valve clack and the lower valve clack, the circulation substances in the stop valve can circulate from the position of the through hole, the resistance of the stop valve clack when closed is reduced, the compression distance of the compression plate to the expansion spring is gradually increased in the descending process of the valve clack, the elastic acting force of the expansion spring to the valve clack when being pressed down is gradually increased, the operation resistance of a worker is slowed down, and the acting force for driving the valve rod to rotate is driven by the rotation of the spiral fan blade, so that the operation resistance of the worker is slowed down.
Description
Technical Field
The invention relates to a stop valve technology, in particular to a stop valve capable of reducing the operation resistance of a valve handle.
Background
The stop valve is also called a stop valve, and belongs to a forced sealing type valve, so that when the valve is closed, pressure is applied to a valve clack to force a sealing surface not to leak, when a medium enters the valve from the lower part of the valve clack, the resistance which is needed to be overcome by the operation force is the friction force of a valve rod and a filler and the thrust force 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 whole upper valve clack and the whole lower valve clack move to the position of the upper flow hole of the plugging plate, and in the process of gradually reducing the distance between the whole upper valve clack and the whole lower valve clack and the plugging plate, the opening for the circulation of circulating substances in the stop valve is reduced, the circulation speed is increased under the action of the circulating pressure of the circulating substances, and the acting force which is used for obstructing the downward movement trend of the whole upper valve clack and the whole lower valve clack is increased, so that the operating resistance of a valve rod for connecting the upper valve clack and the lower valve clack by a hand wheel is larger, and the stop valve is inconvenient to close by a worker; in order to reduce the operation resistance of a worker to the closing of the stop valve, the inside of the stop valve is provided with a spring, 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 pushing acting force of the spring to the valve clack is utilized to slow down the operation resistance of the worker, the rebound acting force of the spring is larger when the spring is extruded or stretched, the rebound acting force is reduced after the spring is restored to the original length, the operation resistance of the valve clack when the valve clack is closed is gradually increased, the rebound acting force given by the spring is gradually reduced along with the expansion of the spring, and the effect of slowing down the operation resistance is difficult to realize when the valve clack is close to the plugging plate; when the material flows in the stop valve, yi Ka of impurities carried in the flowing material is arranged at the positions of the lower through hole and the upper through hole during the material flowing, so that the positions of the upper through hole and the lower through hole are easy to be blocked, the material flowing is blocked, the impurities are blocked at the positions of the through holes to block the rotation closing between the upper valve clack and the lower valve clack in the valve body of the stop valve, the adjusting resistance of the valve clack by staff is increased, and inconvenience is caused to the staff;
aiming at the technical problems, the application provides a solution.
Disclosure of Invention
The invention aims to enable the circulation substances in the stop valve to circulate from the position of the through hole through the communication between the upper through hole and the lower through hole arranged on the upper valve clack and the lower valve clack, the resistance to the stop valve clack when being closed is reduced, the compression distance of the compression plate to the expansion spring is gradually increased in the descending process of the valve clack, the elastic acting force of the expansion spring to the valve clack is gradually increased, the operation resistance of a worker is slowed down, the acting force for driving the valve rod to rotate is driven by the rotation of the spiral fan blade, the operation resistance of the worker is slowed down, the problems that the operation resistance of the worker is large and inconvenient to close when the stop valve is closed and the interior of the stop valve is easy to be blocked due to impurities are solved, and the stop valve for reducing the operation resistance of the valve handle is provided.
The aim of the invention can be achieved by the following technical scheme:
the stop valve comprises a stop valve body, a valve cover, a hand wheel, a valve rod, a blocking 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 rotationally connected with the valve rod, the upper end of the valve cover is rotationally 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 blocking 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 rotationally connected with the lower valve clack, the upper surface of the lower valve clack is integrally formed with an inner rotating rod corresponding to the middle position inside the valve rod, the upper end of the inner rotating rod is connected with the rotating disc, and an adjusting component is arranged inside the valve rod corresponding to the position of the inner rotating 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 rotationally connected with a screw rod, and a driving assembly is arranged at the position of the upper surface of the upper valve clack corresponding to the telescopic spring;
the upper surface of the upper valve clack is close to one side of the telescopic spring and is rotationally connected with a spiral fan blade through a connecting shaft, a supporting plate is connected below the outer side wall of the valve rod, a transmission box is connected to the upper surface of the supporting plate corresponding to the position of the connecting shaft, and a transmission assembly is arranged in the valve body of the stop valve corresponding to the position of the transmission box.
As a preferred implementation mode of the invention, the adjusting component comprises an inner cavity, a plurality of uniformly distributed limiting cavities are formed in the inner cavity, limiting blocks are integrally formed at positions of the inner rotating rod corresponding to the limiting cavities, circulation limiting grooves are formed in the upper surface of the valve rod, blocking limiting grooves are formed in one side, close to the circulation limiting grooves, of the upper surface of the valve rod, sliding cavities are formed in positions of the outer side walls of the inner rotating rod corresponding to the circulation limiting grooves, and sliding blocks are connected in the sliding cavities in a sliding mode.
As a preferred implementation mode of the invention, the adjusting component further comprises an upper through hole, a lower through hole is formed in the position, corresponding to the upper through hole, of the upper surface of the lower valve clack, a rotating block is integrally formed on the outer side of the upper surface of the lower valve clack, a rotating cavity is formed in the position, corresponding to the rotating block, of the lower surface of the upper valve clack, a sealing gasket is connected to the lower surface of the upper valve clack, and a sealing plate is connected to the lower surface of the upper valve clack.
As a preferred implementation mode of the invention, the driving assembly comprises a fluted disc, the upper end of the screw is connected with an adjusting tooth column, the upper end of the adjusting tooth column and the lower end of the screw are both connected with connecting rods, the upper surface of the upper valve clack is connected with a telescopic hose corresponding to the outer side of the telescopic spring, and the upper surface of the upper valve clack is connected with a limiting rod corresponding to the inner side of the telescopic spring.
As a preferred embodiment of the present invention, the transmission assembly includes a rotating frame, an inner gear ring is slidingly connected inside the rotating frame, and a connecting gear is connected to the upper end of the connecting shaft at a position corresponding to the inner gear ring.
As a preferred implementation mode of the invention, one end of the connecting shaft, which is close to the inside of the transmission box, is connected with transmission rotating wheels, the two transmission rotating wheels are in transmission connection with each other through a transmission belt, and the outer side wall of the connecting shaft, which is connected with a connecting gear, is connected with a volute spiral spring at a position corresponding to the transmission box.
Compared with the prior art, the invention has the beneficial effects that:
1. through the rotation adjustment of the inner rotation rod to the lower valve clack arranged below the upper valve clack, when the stop valve clack is closed, through the communication between the upper through holes and the lower through holes formed in the upper valve clack and the lower valve clack, the circulating substances in the stop valve can circulate from the positions of the through holes, the resistance applied to the stop valve clack when the stop valve clack is closed is reduced, and the operation resistance of workers is reduced;
2. the screw is always driven to rotate in the process of moving the valve rod up and down through the adjusting tooth column, and the rotating speed is faster 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 compression plate to the expansion spring is gradually increased, the elastic acting force of the expansion spring to the valve clack pressing down is gradually increased, and the operation resistance of workers is facilitated to be slowed down;
3. the spiral fan blade is driven to rotate by circulating substances at the position of the upper through hole, the spiral fan blade can crush impurities clamped at the position of the upper through hole, the blocking is prevented from affecting the circulation of substances in the stop valve, the rotating acting force of the spiral fan blade drives the connecting gear to rotate through the transmission box, the connecting gear and the inner gear ring are mutually embedded to drive the inner gear ring to rotate, the inner gear ring is mutually embedded with the adjusting gear column, the fluted disc connected with the valve rod can be driven to rotate, the rotating acting force for driving the valve rod to rotate is provided for the rotation of the spiral fan blade, and the operation resistance of workers is facilitated to be slowed down.
Drawings
The present invention is further described below with reference to the accompanying drawings for the convenience of understanding by those skilled in the art.
FIG. 1 is a main block diagram of the present invention;
FIG. 2 is a view showing the construction of the inside of a valve body of the stop valve of the present invention;
FIG. 3 is a block diagram of an internal rotation mechanism of the present invention;
FIG. 4 is an enlarged view of the portion A of FIG. 3 according to the present invention;
FIG. 5 is a diagram showing the structure of the connection between the lower valve clack and the upper valve clack;
FIG. 6 is a flow-through restrictor slot configuration of the present invention;
FIG. 7 is a block diagram of the spring mechanism of the present invention;
FIG. 8 is a view showing the construction of the inside of the flexible hose according to the present invention;
FIG. 9 is a block diagram of the impurity removal mechanism of the present invention;
FIG. 10 is a diagram of a structure of a spiral fan blade according to the present invention.
In the figure: 1. a shut-off valve body; 2. an internal rotation mechanism; 21. a lower valve clack; 22. an inner rotating rod; 23. a limiting block; 24. a spacing cavity; 25. a rotating disc; 26. a sealing gasket; 27. a rotating block; 28. a rotating chamber; 29. an upper through hole; 210. a lower through hole; 211. a circulation limit groove; 212. a sliding block; 213. a sliding chamber; 214. plugging the limit groove; 3. an elastic mechanism; 31. fluted disc; 32. adjusting the tooth column; 33. a connecting rod; 34. a screw; 35. a flexible hose; 36. a telescopic spring; 37. a limit rod; 38. an extrusion 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. spiral fan blades; 5. a valve cover; 6. a hand wheel; 7. a valve stem; 8. a plugging plate; 9. and an upper valve clack.
Detailed Description
The technical solutions of the present invention will be clearly and completely described in connection with the embodiments, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1:
referring to fig. 1-6, a stop valve for reducing the operation 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 clack 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 rotationally connected with the valve rod 7, the hand wheel 6 is rotationally connected with the upper end of the valve cover 5 corresponding to the position of the valve rod 7, the lower end of the valve rod 7 is connected with the upper valve clack 9, and the blocking plate 8 is integrally formed inside the stop valve body 1 corresponding to the position of the upper valve clack 9;
the lower surface of the upper valve clack 9 is rotationally 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 on the upper surface of the lower valve clack 21 at the middle position corresponding to the inside of the valve rod 7, a rotary disc 25 is connected at the upper end of the inner rotary rod 22, the rotary disc 25 can regulate 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 inside the inner cavity, a limiting block 23 is integrally formed at the position corresponding to the limiting cavity 24 of the inner rotary rod 22, the limiting cavity 24 and the limiting block 23 are mutually combined to ensure that the inner rotary rod 22 is not easy to move at the position inside the valve rod 7, after the inner rotary rod 22 is placed inside the valve rod 7 which is divided into two, the inner rotary rod 22 is mounted through welding the other half of the valve rod 7 and the valve rod 7, a circulation limiting groove 211 is formed on the upper surface of the valve rod 7, when the included angle between the circulation limit groove 211 and the blocking limit groove 214 is 45 degrees and the sliding block 212 connected with the outer side of the inner rotating rod 22 is positioned in the circulation limit groove 211, the upper through hole 29 and the lower through hole 210 on the upper valve clack 9 and the lower valve clack 21 are mutually corresponding to each other, the effect of communication is achieved, at the moment, the integral valve clack formed by the upper valve clack 9 and the lower valve clack 21 blocks 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, the function of the stop valve at the moment is equivalent to that of a throttle valve, the blocking limit groove 214 is formed on the upper surface of the valve rod 7 near the circulation limit groove 211, when the sliding block 212 connected with the outer side of the inner rotating rod 22 is positioned in the blocking limit groove 214, the upper through hole 29 and the lower through hole 210 on the upper valve clack 9 and the lower valve clack 21 are mutually staggered, and the blocking effect is achieved, the outer side wall of the inner rotary rod 22 is provided with a sliding cavity 213 corresponding to the position of the circulation limit groove 211, the sliding cavity 213 is internally connected with a sliding block 212 in a sliding manner, the height of the sliding cavity 213 is twice as large as that of the sliding block 212, when the sliding block 212 slides to the uppermost position of the sliding cavity 213 in the sliding cavity 213, the sliding block 212, the circulation limit groove 211 and the blocking limit groove 214 are separated, so that the inner rotary rod 22 can rotate, when the sliding block 212 slides to the lowermost position of the sliding cavity 213 in the sliding cavity 213, the sliding block 212 is inserted into the circulation limit groove 211 or the blocking limit groove 214, the rotation of the inner rotary rod 22 is limited, four evenly distributed upper through holes 29 are formed on the upper surface of the upper valve clack 9, a lower through hole 210 is formed on the upper surface of the lower valve clack 21 corresponding to the position of the upper through hole 29, the upper through hole 29 and the lower through hole 210 are the same in size and the size, the outer side of the upper surface of the lower valve clack 21 is integrally formed with a rotating block 27, the shape of the rotating block 27 is a right-angle crutch shape, the lower surface of the upper valve clack 9 is provided with a rotating cavity 28 corresponding to the position of the rotating block 27, the shape and the size of the rotating cavity 28 are the same as those of the rotating block 27, so that the upper valve clack 9 and the lower valve clack 21 can not be separated from each other when being embedded in the rotating cavity 28 through the rotating block 27 during rotation, the lower surface of the upper valve clack 9 is connected with a sealing gasket 26 near the outer side of the lower valve clack 21, after the upper valve clack 9 and the lower valve clack 21 integrally move to the position of a sealing plate 8, the gap between the sealing plate 8 and the upper valve clack 9 and the lower valve clack 21 is sealed, the lower surface of the upper valve clack 9 is connected with a sealing plate, the shape and the size of the sealing plate are the same as those of the lower valve clack 21, the sealing plate is provided with holes with the same shape and the same size corresponding to the position of the upper through hole 29, the sealing plate can seal the gap between the upper valve clack 9 and the lower valve clack 21;
in the prior art, in the process of closing the stop valve, the whole upper valve clack 9 and the whole lower valve clack 21 move to the position of the upper flow hole of the blocking plate 8, and in the process that the distance between the whole upper valve clack 9 and the whole lower valve clack 21 and the blocking plate 8 is gradually reduced, the opening for the circulation of the circulating substances in the stop valve is reduced, the circulation speed is increased under the action of the circulating pressure of the circulating substances, and the acting force which is used for obstructing the downward movement trend of the whole upper valve clack 9 and the whole lower valve clack 21 is increased, so that the operating resistance of a valve rod 7 for connecting the upper valve clack 9 and the lower valve clack 21 by a hand wheel 6 is larger, and the stop valve is inconvenient to close by the staff;
the stop valve is in the in-process of closing, the sliding block 212 of sliding connection in the outside of the internal rotation pole 22 moves to the uppermost part of the sliding cavity 213, the sliding block 212 slides out from the inside of the shutoff limit groove 214, the internal rotation pole 22 can rotate under the action of the rotating disk 25, the sliding block 212 slides on the upper surface of the valve body 7 in the rotating process, the sliding block automatically slides down to the inside of the circulation limit groove 211 under the action of self gravity when sliding to the position of the circulation limit groove 211, the internal rotation pole 22 limits the position of the valve rod 7 again, the internal rotation pole 22 drives the lower valve clack 21 to rotate when rotating, 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 achieve the effect of communicating mutually, when the whole of the upper valve clack 9 and the lower valve clack 21 moves towards the plugging plate 8, the internal circulation material in the stop valve can circulate from the position of the gradually reduced opening, the operating resistance of the valve rod 29 reduces due to the reduction of the resistance of the circulation material, the operating resistance of the upper valve clack 9 and the lower valve clack 21 is reduced due to the fact that the operating resistance of the operating block 212 of the operating staff and the lower through hole 29 is staggered with the inner rotation pole 22 and the inner rotation of the lower through hole 22 is reduced, and the size of the inner rotation pole is reduced due to the fact that the inner rotation of the valve and the inner rotation of the valve is compared with the inner rotation of the valve and the size of the valve clack is compared with the inner through hole and the size of the inner rotation hole and the inner hole 21.
Example 2:
referring to fig. 7-8, one side of the upper surface of the upper valve clack 9 is connected with a telescopic spring 36, one end of the telescopic spring 36 is connected to the upper valve clack 9, the other end of the telescopic spring 36 is connected to a squeeze plate 38, a threaded hole is formed in the position, corresponding to the screw 34, of the upper surface of the squeeze plate 38, a sliding hole is formed in the position, corresponding to the limit rod 37, of the upper surface of the squeeze plate 38, the screw 34 can be driven to move up and down in the position, corresponding to the limit rod 37, of the squeeze plate 38, one side of the outer side wall of the squeeze plate 38 is rotationally connected with the screw 34, a fluted disc 31 is connected to the lower side wall of the valve rod 7, the upper end of the screw 34 is connected with an adjusting toothed column 32, the upper end of the adjusting toothed column 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 toothed column 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 of the valve rod 7, the outer side 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 inner side of the upper valve clack 9 is connected with the limit rod 37 corresponding to the telescopic spring 36;
in the prior art, in order to reduce the operation resistance of a worker when the stop valve is closed, the inside of the stop valve is provided with a spring, 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 pushing acting force of the spring to the valve clack is utilized to slow down the operation resistance of the worker, the rebound acting force of the spring when the spring is extruded or stretched is larger, the rebound acting force is reduced after the spring is restored to the original length, the operation resistance of the valve clack when the valve clack is closed is gradually increased, the rebound acting force given by the spring is gradually reduced along with the expansion of the spring, and the effect of slowing down the operation resistance is difficult to realize when the valve clack is close to the blocking plate 8;
in the closing process of the stop valve, the valve rod 7 drives the fluted disc 31 connected to the valve rod 7 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, the fluted disc 31 moves downwards along with the valve rod 7 in the rotating process of the valve rod 7, the fluted disc 31 always keeps contact with the outer wall of the adjusting tooth column 32 in the moving process, 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, the extrusion plate 38 limited by the limiting rod 37 is enabled to move downwards along with the descending of the valve clack in the descending process of the valve clack position, the rebound acting force of the valve clack cannot change greatly in the descending process of the valve clack, and the operation resistance of workers is relieved at any time.
Example 3:
referring to fig. 9-10, a spiral blade 47 is rotatably connected to one side of the upper surface of the upper valve clack 9, which is close to the expansion spring 36, through a connecting shaft 45, the diameter of the spiral blade 47 is smaller than the inner diameter of the upper through hole 29, so that the spiral blade 47 can rotate in the upper through hole 29, a supporting plate 44 is connected below the outer side wall of the valve rod 7, a transmission box 43 is connected at the position of the upper surface of the supporting plate 44, which corresponds to the connecting shaft 45, a rotating frame 41 is connected above the inner side wall of the stop valve body 1, an inner gear ring 42 is slidably connected in the rotating frame 41, the inner gear ring 42 is engaged with the adjusting gear column 32, so that the inner gear ring 42 can rotate under the driving of the adjusting gear column 32, a connecting gear 46 is connected at the position of the upper end of the connecting shaft 45, which corresponds to the inner gear ring 42, the connecting gear 46 is engaged with the inner gear ring 42, one end of the connecting shaft 45, which is close to the inner portion of the transmission box 43, is connected with a scroll spring through a transmission belt, one end of the scroll spring is slidably connected to the inner wall of the transmission runner, and the other end of the scroll spring is connected to the connecting shaft 45;
in the prior art, when substances circulate in the stop valve, yi Ka carried in the circulating substances are arranged at the positions of the lower through hole 210 and the upper through hole 29 during circulation, so that the positions of the upper through hole 29 and the lower through hole 210 are easy to block, the circulation of the substances is blocked, the impurities are blocked at the positions of the through holes to block the rotation between the upper valve clack 9 and the lower valve clack 21 in the stop valve body 1, the adjustment resistance of the valve clack by staff is increased, and inconvenience is caused to the staff;
the screw fan blade 47 which is rotationally connected with the lower surface of the supporting plate 44 and corresponds to the position of the upper through hole 29 can rotate under the drive of the circulating substances in the stop valve body 1, the connecting shaft 45 which is connected with the screw fan blade 47 drives the connecting shaft 45 which is connected with the connecting gear 46 to rotate through the transmission box 43, the connecting gear 46 is mutually embedded with the inner gear ring 42, the screw fan blade 47 has the acting force which drives the inner gear ring 42 to rotate, the inner gear ring 42 is mutually embedded with the adjusting tooth column 32 and the fluted disc 31 which is connected with the valve rod 7 are mutually embedded, the rotation of the screw fan blade 47 has the acting force which drives the valve rod 7 to rotate, the rotating operation resistance of the valve rod 7 is reduced, the screw fan blade 47 can crush impurities clamped at the position of the upper through hole 29 in the rotating process, the impurities can not 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 pushing action of the flowing substances, and the friction resistance between the valve rod 7 and the connecting block is larger than the friction resistance between one end of the spiral spring and the inner wall of the upper chute of the transmission runner, so that the screw fan blade 47 only drives the acting force which drives the valve rod 7 to rotate, and the valve rod 7 can not drive the valve rod 7 to rotate independently.
When the valve rod is used, a worker can downwards move the valve rod 7 in threaded connection with the hand wheel 6 to close the stop valve through rotating the hand wheel 6, in the process of closing the stop valve, the sliding block 212 which is in sliding connection with the outer side of the inner rotary rod 22 is moved to the uppermost part of the sliding cavity 213, the sliding block 212 slides out of the inside of the blocking limiting groove 214, the inner rotary rod 22 can rotate under the action of the rotating disc 25, in the rotating process, the sliding block 212 slides on the upper surface of the valve rod 7, automatically downwards slides into the circulating limiting groove 211 under the action of self gravity when sliding to the position of the circulating limiting groove 211, limits the position of the inner rotary rod 22 in the valve rod 7 again, and when the inner rotary rod 22 rotates, the lower valve clack 21 is driven 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 are mutually corresponding to achieve the communicating effect, and when the whole body of the upper valve clack 21 moves towards the blocking plate 8, the circulating substances in the stop valve can circulate from the gradually reduced opening position of the valve clack 29;
the fluted disc 31 connected to the valve rod 7 is driven to rotate in the process of rotating 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, the fluted disc 31 moves downwards along with the valve rod 7 in the process of rotating the valve rod 7, the fluted disc 31 always keeps contact with the outer wall of the adjusting tooth column 32 in the moving process, 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, and the extruding plate 38 is lowered along with the lowering of the valve clack position in the process of lowering the valve clack position;
the screw fan blade 47 which is rotationally connected with the lower surface of the supporting plate 44 and corresponds to the position of the upper through hole 29 can rotate under the drive of the circulating substances in the stop valve body 1, so that the connecting shaft 45 connected with the screw fan blade 47 drives the connecting shaft 45 connected with the connecting gear 46 to rotate through the transmission box 43, the connecting gear 46 is mutually embedded with the inner gear ring 42, the screw fan blade 47 has acting force for driving the inner gear ring 42 to rotate, the inner gear ring 42 is mutually embedded with the adjusting tooth column 32, the adjusting tooth column 32 is mutually embedded with the fluted disc 31 connected with the valve rod 7, the rotating force for driving the valve rod 7 to rotate is generated by the rotating of the screw fan blade 47, the rotating operation resistance of the valve rod 7 is reduced, the screw fan blade 47 can crush impurities clamped at the position of the upper through hole 29 in the rotating process, and 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 pushing action of the circulating substances under the condition that the impurities can not cause blockage to the upper through hole 29;
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 inner 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 circulation limiting groove 211, the upper valve clack 9 and the lower valve clack 21 are mutually staggered to achieve the effect of mutual plugging, and the upper through hole 29 and the lower through hole 210 have smaller size and can supply smaller amount of circulating substances, so that the operation resistance to the rotation of the inner rotating rod 22 is smaller.
The preferred embodiments of the invention disclosed above are intended only to assist in the explanation of the invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise form 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 understand and utilize the invention. The invention is limited only by the claims and the full scope and equivalents thereof.
Claims (4)
1. The utility model provides a reduce stop valve of valve handle operating resistance, includes stop valve body (1), valve gap (5), hand wheel (6), valve rod (7), shutoff board (8) and last valve clack (9), stop valve body (1) upper end is connected with valve gap (5), valve rod (7) are connected with in the rotation of valve gap (5) inside intermediate position department, valve gap (5) upper end corresponds valve rod (7) position department rotates and is connected with hand wheel (6), valve rod (7) lower extreme is connected with last valve clack (9), stop valve body (1) inside corresponds valve clack (9) position department integrated into one piece has shutoff board (8), its characterized in that, valve clack (9) lower surface rotates and is connected with lower valve clack (21), lower valve clack (21) upper surface corresponds valve rod (7) inside intermediate position department integrated into one piece has interior rotation pole (22), interior rotation of rotation pole (22) upper end is connected with rotating disc (25), valve rod (7) inside corresponds interior rotation pole (22) position department is provided with adjusting part.
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 squeeze plate (38), one side of the outer side wall of the squeeze plate (38) is rotationally connected with a screw (34), and a driving assembly is arranged on the upper surface of the upper valve clack (9) corresponding to the position of the telescopic spring (36);
a spiral fan blade (47) is rotationally connected to one side, close to the telescopic spring (36), of the upper surface of the upper valve clack (9) through a connecting shaft (45), a supporting plate (44) is connected to the lower part of the outer side wall of the valve rod (7), a transmission box (43) is connected to the upper surface of the supporting plate (44) at the position corresponding to the connecting shaft (45), and a transmission assembly is arranged in the stop valve body (1) at the position corresponding to the transmission box (43);
the adjusting component comprises an inner cavity, a plurality of uniformly distributed limiting cavities (24) are formed in the inner cavity, limiting blocks (23) are integrally formed at positions, corresponding to the limiting cavities (24), of the inner rotating rod (22), circulation limiting grooves (211) are formed in the upper surface of the valve rod (7), blocking limiting grooves (214) are formed in one side, close to the circulation limiting grooves (211), of the upper surface of the valve rod (7), sliding cavities (213) are formed in positions, corresponding to the circulation limiting grooves (211), of the outer side walls of the inner rotating rod (22), and sliding blocks (212) are connected in the sliding cavities (213) in a sliding mode;
the adjusting component further comprises an upper through hole (29), the upper surface of the lower valve clack (21) corresponds to the position of the upper through hole (29), a lower through hole (210) is formed in the position of the upper through hole, a rotating block (27) is integrally formed in the outer side of the upper surface of the lower valve clack (21), a rotating cavity (28) is formed in the position of the lower surface of the upper valve clack (9) corresponding to the rotating block (27), a sealing gasket (26) is connected to the outer side of the lower valve clack (21) on the lower surface of the upper valve clack (9), and a sealing plate is connected to the lower surface of the upper valve clack (9).
2. The stop valve for reducing the valve handle operation resistance according to claim 1, wherein the driving assembly comprises a fluted disc (31), an adjusting tooth column (32) is connected to the upper end of the screw rod (34), a connecting rod (33) is connected to the upper end of the adjusting tooth column (32) and the lower end of the screw rod (34), a telescopic hose (35) is connected to the upper surface of the upper valve clack (9) corresponding to the outer side of the telescopic spring (36), and a limiting rod (37) is connected to the upper surface of the upper valve clack (9) corresponding to the inner side of the telescopic spring (36).
3. A shut-off valve for reducing the operation resistance of a valve handle according to 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).
4. A shut-off valve for reducing the operating resistance of a valve handle according to claim 3, wherein one end of the connecting shaft (45) close to the inside of the transmission case (43) is connected with a transmission rotating wheel, the two transmission rotating wheels are in transmission connection with each other through a transmission belt, and a spiral spring is connected on the outer side wall of the connecting shaft (45) connected with the connecting gear (46) at the 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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114321400A CN114321400A (en) | 2022-04-12 |
| CN114321400B true CN114321400B (en) | 2023-06-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210185304.4A Active CN114321400B (en) | 2022-02-28 | 2022-02-28 | Stop valve for reducing valve handle operation resistance |
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| CN (1) | CN114321400B (en) |
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| CN114321400A (en) | 2022-04-12 |
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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 |