CN115711291B - Piston type flow-regulating pressure-regulating control valve lip type self-sealing device applied to pipeline - Google Patents
Piston type flow-regulating pressure-regulating control valve lip type self-sealing device applied to pipeline Download PDFInfo
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- CN115711291B CN115711291B CN202211187189.0A CN202211187189A CN115711291B CN 115711291 B CN115711291 B CN 115711291B CN 202211187189 A CN202211187189 A CN 202211187189A CN 115711291 B CN115711291 B CN 115711291B
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Abstract
The utility model discloses a piston type flow-regulating pressure-regulating control valve lip type self-sealing device applied to a pipeline, which comprises a valve body, wherein a screen plate is arranged on the inner surface of the valve body, a storage box is arranged on the inner surface of the screen plate, a guide rail is arranged on the inner surface of the storage box, a piston is slidably arranged in the guide rail, a first storage groove is arranged on the inner surface of the storage box, a Y-shaped sealing ring is embedded in the first storage groove, the inner surface of the Y-shaped sealing ring is attached to the outer surface of the piston, a limit sealing block is arranged on the inner surface of the valve body, a first sealing ring is arranged on the outer wall of one side of the piston, and a squirrel cage is arranged on the outer surface of the first sealing ring in a clamping manner; and the space formed by the squirrel cage and the sealing ring I is filled and smeared with calcium-based lubricating grease. According to the utility model, the valve body, the guide rail, the piston and the mouse cage are arranged, so that the piston is driven to move on the guide rail, the piston is prevented from contacting the valve body, and the abrasion degree between the piston and the valve body can be reduced.
Description
Technical Field
The utility model relates to the technical field of flow and pressure regulating control valves, in particular to a lip-type self-sealing piston type flow and pressure regulating control valve applied to a pipeline.
Background
The piston type flow-regulating pressure-regulating control valve is usually arranged in the pipeline to regulate the flow of the pipeline, however, when the existing flow-regulating valve is used, a piston in the existing flow-regulating valve can be worn out for a long time, so that the overall tightness of the valve is affected, and certain defects exist, so that the lip type self-sealing of the piston type flow-regulating pressure-regulating control valve is urgently needed to reduce the friction loss between the piston and the valve body, and further the service life of the control valve is prolonged.
The existing control valve lip type self-sealing has the defects that:
1. patent document CN209808269U relates to a door closing self-sealing structure applied to a dishwasher. Including having dish washing chamber's dish washer body, one side articulates be used for the closing cap on the dish washer body the dish washer lid in dish washing chamber, be equipped with the embedding portion of embedding to the intracavity of washing the dish on the dish washer lid medial surface, be equipped with sealed self-sealing structure on the periphery of embedding portion, self-sealing structure includes outside bellied arc portion, and arc portion inboard with the surface of embedding portion leaves the clearance of warp, thereby dish washer lid closing cap is when on the dish washer body, arc portion is extrudeed between dish washing intracavity wall and embedding portion and is formed sealedly. The self-sealing structure with the arc-shaped part is arranged on the periphery of the embedded part on the inner side of the dish washing cover, when the dish washing cover is closed, the arc-shaped part is contacted with the inner wall of the dish washing cavity and is extruded by the inner wall in the closing process, and the deformation gap expected by the inner side of the arc-shaped part is used for extrusion deformation of the arc-shaped part, so that a good sealing effect is formed;
2. patent document CN217355650U discloses a one-way self-sealing structure, a two-way self-sealing structure and a ball valve, wherein the one-way self-sealing structure comprises a valve seat and a valve seat support ring which are arranged between a valve body and a ball body, the valve seat support ring enables the valve seat to be matched with the surface of the ball body, the one-way self-sealing structure further comprises a first plug ring and a compression ring which are arranged between the valve seat support ring and the inner wall of the valve body, the surface of the valve seat support ring is provided with an assembly inclined plane, and the compression ring compresses the first self-sealing seat between the assembly inclined plane and the inner wall of the valve body; the two-way self-sealing structure is formed by adding a second universal plug ring on the basis of the two-way self-sealing structure; the two sealing structures can be combined or respectively arranged in the ball valve. The sealing structure in the utility model is double sealing which is finished by using the two parts of the universal plug ring and the self-sealing seat, the self-sealing seat not only strengthens sealing, but also can avoid abrasion between the ball body and the valve seat caused by overlarge torque of the valve and improve the service life of the valve, but the self-sealing structure in the above publication mainly considers how to reduce the probability of abrasion between the ball body and the valve seat caused by overlarge torque of the valve, does not consider the problem that the existing self-sealing structure is inconvenient to assemble, and has poor practicability;
3. patent document CN214071740U discloses a hookah pipe with self-sealing structure, which belongs to the technical field of hookah pipes, in particular to a hookah pipe with self-sealing structure. The hookah pipe comprises a pipe body and a self-sealing assembly, wherein the self-sealing assembly is arranged in the pipe body and can realize sealing of the pipe body. Compared with the prior art, the water pipe is internally provided with the self-sealing structure, and when the water pipe is not used, the self-sealing structure can realize the sealing of the water pipe and prevent air from entering; secondly, the pipe body of the water smoke pipe is divided into an upper part and a lower part, and the joint of the upper pipe body and the lower pipe body is detachable, so that the assembly and the maintenance are convenient; finally, the self-sealing structure is simple in structure, low in cost and convenient to popularize and use, but the self-sealing structure in the above-mentioned publication mainly considers how to conveniently disassemble, assemble and overhaul the self-sealing structure, and does not consider the problem of poor sealing precision of the existing self-sealing structure;
4. patent document CN216742274U provides a hydraulic ram piston with self-sealing structure, comprising: the cylinder body is provided with a piston rod at the inner side end, a mounting block is arranged at the outer side of the lower end of the piston rod, and a connecting rod is fixedly arranged at the outer side of the lower end of the mounting block; the mounting ring is mounted in the outer side of the piston body, and a first sealing ring is arranged on the outer side of the mounting ring, which is close to the inner wall end of the cylinder body; the mounting assembly is mounted on the outer side of the upper end of the cylinder body through a bolt, and a connecting lug is arranged in the mounting assembly; the guide block is arranged at the upper end of the inner side of the cylinder body, and a fixed block which is mutually connected with the installation component is fixedly arranged in the upper end of the cylinder body. This hydraulic cylinder piston with self sealss structure, self have better self sealss structure, improved whole sealed effect at the during operation, avoid appearing leaking the phenomenon at the course of the work, strengthened the fastening performance of installation simultaneously, but the self sealss structure among the above-mentioned publication mainly considers how to improve the sealed effect of during operation to do not consider current self sealss device and inconvenient problem of overhauing when using, the flexibility is relatively poor.
Disclosure of Invention
The utility model aims to provide a piston type flow-regulating pressure-regulating control valve lip type self-sealing device for use in a pipeline, so as to solve the problems in the prior art.
In order to achieve the above purpose, the present utility model provides the following technical solutions: a piston type flow-regulating pressure-regulating control valve lip type self-sealing device applied to a pipeline comprises a valve body, wherein a screen plate is arranged on the inner surface of the valve body, the screen plate is in a horn shape, a storage box is arranged on the inner surface of the screen plate, and the storage box is in a cylinder shape;
the inner surface of the storage box is provided with a guide rail, a piston is slidably arranged in the guide rail, a first storage groove is formed in the inner surface of the storage box, a Y-shaped sealing ring is embedded in the first storage groove, the inner surface of the Y-shaped sealing ring is attached to the outer surface of the piston, a limit sealing block is arranged on the inner surface of the valve body, the inner surface of the limit sealing block is attached to the outer surface of the piston, a first sealing ring is arranged on the outer wall of one side of the piston, and a squirrel cage is arranged on the outer surface of the first sealing ring in a clamping mode;
and the space formed by the squirrel cage and the sealing ring I is filled and smeared with calcium-based lubricating grease.
Preferably, the inner surface mounting of squirrel cage has the connecting plate, and the screw hole first that is provided with evenly arranging is all run through to one side outer wall of connecting plate and piston, and the inside threaded connection of screw hole first has screw rod first, and the connecting piece is all installed to the both ends surface of valve body, and one side outer wall of connecting piece runs through and is provided with evenly arranging screw hole second, and screw rod second is installed to the inside gomphosis of screw hole second.
Preferably, a second object placing groove is formed in one side outer wall of the connecting piece, a third threaded hole and a groove are formed in one side inner wall of the second object placing groove, the groove is located in the inner side of the third threaded hole, a gland is installed in the second object placing groove in a jogged mode, a clamping groove is formed in one side outer wall of the gland, a sealing pair is installed in the clamping groove in a jogged mode, the sealing pair is jogged with the groove, a fastening bolt is connected with the other side outer wall of the gland in a threaded mode, the fastening bolt is connected with the three-phase threaded hole, a baffle is installed on the outer surface of the squirrel cage, a limit groove is formed in one side outer wall of the baffle, and one side inner wall of the limit groove is attached to one side outer surface of the sealing pair.
Preferably, one end of the storage box is provided with a notch in a penetrating mode, a retainer ring is mounted on the inner surface of the notch, a sealing gasket is mounted on the inner surface of the retainer ring in a jogged mode, a connecting hole which is symmetrically arranged is formed in the outer wall of one side of the storage box, a second sealing ring is mounted on the outer wall of one side of the notch, a sealing cover is mounted on the outer surface of the second sealing ring in a jogged mode, a third screw is mounted on the outer wall of one side of the sealing cover in an embedded mode, and the third screw is connected with the connecting hole in a threaded mode.
Preferably, the storage box is positioned in the valve body, the cross section of the first sealing ring is in an O-shaped structure, and the piston can drive the squirrel cage to move in the valve body along the horizontal direction;
the cross section of the groove is L-shaped, the cross section of the clamping groove is of a concave structure, the cross section of the sealing pair is of an L-shaped structure, when the piston drives the squirrel cage to move, the sealing pair can be clamped with the limiting groove, and the outer wall of the other side of the baffle is attached to the outer wall of one side of the piston;
the second sealing ring is positioned between the notch and the connecting hole, the check ring is positioned on one side of the guide rail, the cross section of the sealing gasket is of a convex structure, and the sealing gasket is embedded with the notch.
Preferably, the guide cylinder is mounted on the outer wall of one side of one group of the connecting pieces in a fitting way, the guide cylinder is positioned on the outer side of the squirrel cage, and the connecting pieces and the guide cylinder are connected together through a second screw rod.
Preferably, sealing strips which are uniformly arranged are arranged on the outer surface of the piston, and the outer wall of one side of each sealing strip is attached to the outer wall of one side of each Y-shaped sealing ring.
Preferably, the connecting rod of symmetrical arrangement is installed to piston opposite side outer wall, and the connecting rod is located the inside of storage box, and slipmat is installed to the one end of connecting rod.
Preferably, the working procedure for controlling the self-sealing of the valve lip is as follows:
s1, before the control valve lip is used for self-sealing, firstly, a sealing pair is inserted into the clamping groove, and a pressing cover is plugged into the second storage groove, so that the sealing pair can be embedded with a groove, then, a fastening bolt is screwed into the third threaded hole, and then, the pressing cover can be fixed on a connecting piece through the fastening bolt;
s2, connecting the valve body in a pipeline, and driving the squirrel cage to stretch towards the inside of the storage box along the horizontal direction through the piston, so that the piston can move along the guide rail until an anti-slip pad on the connecting rod can be contacted with the sealing pad;
s3, water in the pipeline flows into the guide cylinder through the squirrel cage after passing through the storage box, and the squirrel cage is driven by the piston to move to adjust the conveying flow in the pipeline, and when the conveying flow is not needed, the squirrel cage is driven by the piston to extend out of the storage box until the sealing strip on the surface of the piston can be attached to the Y-shaped sealing ring in the first storage groove;
s4, when the piston type flow regulating and pressure regulating control valve needs to be overhauled later, the screw rod III is screwed out of the connecting hole, then the sealing cover can be taken down, the sealing cover is not clamped with the sealing ring II, the sealing gasket is pulled outwards, the sealing gasket is not embedded with the retainer ring, and then the position of the piston can be overhauled through the notch.
Preferably, in the step S1, the method further includes the following steps:
s11, screwing the first screw into a threaded hole I on the connecting plate, enabling the first screw to connect the squirrel cage with the piston, enabling a sealing ring I on one side surface of the piston to be clamped with one side surface of the squirrel cage, and then fixing the guide cylinder on one group of connecting pieces through matching of the second screw and the threaded hole II, so that a limit groove on the baffle can be attached to the limit sealing block;
in the step S3, the method further includes the following steps:
s31, the surface of the piston can be driven to be attached to the limiting sealing block, and the sealing pair can be attached to the limiting groove on the baffle plate, so that the sealing effect is improved, and the probability of occurrence of the condition that the sealing is not firm due to abrasion is reduced.
Compared with the prior art, the utility model has the beneficial effects that:
1. according to the utility model, the valve body, the guide rail, the Y-shaped sealing ring, the piston, the limiting sealing block, the first sealing ring, the calcium-based lubricating grease and the mouse cage are arranged, and when the valve is used, the piston is driven to move on the guide rail, so that the piston is prevented from being contacted with the valve body, then the mouse cage is driven to move along the horizontal direction under the action of the piston, then the flow in the pipeline can be controlled through the movement of the mouse cage, so that the abrasion between the piston and the valve body can be reduced to a certain extent, and the service life of the Y-shaped sealing ring and the limiting sealing block in the valve body can be prolonged.
2. According to the utility model, the first threaded hole, the connecting plate, the first threaded rod, the connecting piece, the second threaded hole and the second threaded rod are arranged, the second threaded rod is screwed out of the second threaded hole, the guide cylinder is taken down from the connecting piece, the first threaded rod is screwed out of the first threaded hole in the connecting plate, and the squirrel cage can be taken down from the piston, so that the sealing assembly on the gland is convenient to replace, and the structure is simpler.
3. According to the utility model, the second storage groove, the gland, the fastening bolt, the clamping groove, the sealing pair, the baffle and the limiting groove are arranged, when the flow is not required to be regulated, the squirrel cage can be driven by the piston to extend out of the storage box, the surface of the piston can be attached to the limiting sealing block, and then the sealing pair in the gland and the storage groove can be driven to be attached to the limiting groove on the baffle, so that the sealing between the piston and the valve body can be further improved.
4. According to the utility model, the check ring, the sealing gasket, the connecting hole, the sealing ring II, the sealing cover and the screw rod III are arranged, when the control valve needs to be overhauled, the screw rod III is firstly screwed out of the connecting hole, so that the sealing cover is separated from the storage box, then the sealing gasket is pulled outwards, the sealing gasket is not embedded with the check ring any more, and then parts in the storage box can be overhauled through the notch, so that convenience can be provided for subsequent overhauling work to a certain extent.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is a schematic plan assembly view of the valve body of the present utility model;
FIG. 3 is a schematic view of an assembled structure of the sealing strip and the connecting rod of the present utility model;
FIG. 4 is a schematic diagram of an assembled structure of a baffle and a limiting groove according to the present utility model;
FIG. 5 is a schematic diagram of an assembly structure of a connector according to the present utility model;
FIG. 6 is a schematic plan assembly view of a gland of the present utility model;
FIG. 7 is a schematic view of a planar assembly structure of a second seal ring of the present utility model;
fig. 8 is a flow chart of the operation of the present utility model.
In the figure: 1. a valve body; 2. a screen plate; 3. a storage box; 4. a guide rail; 5. a first storage tank; 6. a Y-shaped sealing ring; 7. a piston; 8. a limit sealing block; 9. a first sealing ring; 10. calcium-based grease; 11. a squirrel cage; 12. a first threaded hole; 13. a connecting plate; 14. a first screw; 15. a connecting piece; 16. a threaded hole II; 17. a second screw; 18. a guide cylinder; 19. a second storage groove; 20. a gland; 21. a threaded hole III; 22. a fastening bolt; 23. a clamping groove; 24. a groove; 25. a sealing pair; 26. a baffle; 27. a limit groove; 28. a retainer ring; 29. a sealing gasket; 30. a connection hole; 31. a second sealing ring; 32. sealing cover; 33. a screw III; 34. a sealing strip; 35. a connecting rod; 36. an anti-slip mat.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
Referring to fig. 1, 2, 5 and 8, an embodiment of the present utility model is provided: a piston type flow-regulating pressure-regulating control valve lip type self-sealing device applied to a pipeline comprises a valve body 1, a connecting plate 13 and a guide cylinder 18, wherein a screen plate 2 is arranged on the inner surface of the valve body 1, the screen plate 2 is in a horn shape, a storage box 3 is arranged on the inner surface of the screen plate 2, the storage box 3 is in a cylinder shape, a guide rail 4 is arranged on the inner surface of the storage box 3, a piston 7 is slidably arranged in the guide rail 4, a storage groove I5 is arranged on the inner surface of the storage box 3, a Y-shaped sealing ring 6 is arranged in the storage groove I5 in a jogged manner, the inner surface of the Y-shaped sealing ring 6 is attached to the outer surface of the piston 7, a limit sealing block 8 is arranged on the inner surface of the valve body 1, the inner surface of the limit sealing block 8 is attached to the outer surface of the piston 7, a sealing ring I9 is arranged on one side outer wall of the piston 7, a squirrel cage 11 is arranged on the outer surface of the sealing ring I9 in a clamping manner, the space formed by the squirrel cage 11 and the first sealing ring 9 is filled and smeared with calcium-based lubricating grease 10, the storage box 3 is positioned in the valve body 1, the cross section of the first sealing ring 9 is in an O-shaped structure, the piston 7 can drive the squirrel cage 11 to move in the valve body 1 along the horizontal direction, the inner surface of the squirrel cage 11 is provided with a connecting plate 13, one side outer wall of the connecting plate 13 and one side outer wall of the piston 7 are respectively provided with a threaded hole I12 which is uniformly distributed in a penetrating way, the inner threads of the threaded hole I12 are connected with a threaded rod I14, the outer surfaces of the two ends of the valve body 1 are respectively provided with a connecting piece 15, one side outer wall of the connecting piece 15 is respectively provided with a threaded hole II 16 which is uniformly distributed in a penetrating way, the inner embedded type of the threaded hole II 16 is provided with a threaded rod II 17, one side outer wall of one group of the connecting pieces 15 is provided with a guide cylinder 18 in a fitting way, and the guide cylinder 18 is positioned at the outer side of the squirrel cage 11, the connecting piece 15 and the guide cylinder 18 are connected together through a second screw rod 17.
Further, before the control valve is used, first the first screw 14 is screwed into the first threaded hole 12 on the connecting plate 13, so that the first screw 14 can connect the squirrel cage 11 and the piston 7 together, and the first sealing ring 9 on one side surface of the piston 7 can be clamped with one side surface of the squirrel cage 11, then the guide cylinder 18 is fixed on one group of connecting pieces 15 through the cooperation of the second screw 17 and the second threaded hole 16, so that the limit groove 27 on the baffle 26 can be attached to the limit sealing block 8, then the valve body 1 is connected in a pipeline, and the squirrel cage 11 is driven by the piston 7 to stretch towards the interior of the storage box 3 along the horizontal direction, so that the piston 7 can move along the guide rail 4 until the anti-slip pad 36 on the connecting rod 35 can be contacted with the sealing pad 29, then water in the pipeline can flow into the interior of the guide cylinder 18 through the squirrel cage 11 after passing through the screen 2, and when conveying is not needed, the piston 7 is pushed to drive the squirrel cage 11 to extend out of the box 3 until the sealing ring 11 can be attached to the first sealing ring 5 on the surface of the piston 7 and the inner surface of the piston 7 can be attached to the Y-shaped sealing block 5, and the abrasion effect can only be reduced to the valve body 1 can be improved, and the self-sealing effect can be improved, and the service life of the valve body can be improved.
Referring to fig. 4 and 6, an embodiment of the present utility model is provided: the piston type flow-regulating pressure-regulating control valve lip type self-sealing device comprises a second storage groove 19 and a limiting groove 27, wherein the second storage groove 19 is arranged on the outer wall of one side of a connecting piece 15, a third threaded hole 21 and a groove 24 are formed in the inner wall of the second storage groove 19, the groove 24 is located on the inner side of the third threaded hole 21, a gland 20 is installed in the second storage groove 19 in a jogged mode, a clamping groove 23 is formed in the outer wall of one side of the gland 20, a sealing pair 25 is installed in the clamping groove 23 in a jogged mode, the sealing pair 25 is jogged with the groove 24, a fastening bolt 22 is connected with the third threaded hole 21 in a threaded mode, a baffle 26 is installed on the outer surface of the squirrel-cage 11, the limiting groove 27 is formed in the outer wall of one side of the baffle 26, the inner wall of one side of the limiting groove 27 is attached to the outer surface of one side of the sealing pair 25, the cross section of the groove 24 is L-shaped, the cross section of the clamping groove 23 is of the groove is of the L-shaped structure, and when the squirrel-cage 11 is driven to move, the piston 7 can enable the sealing pair 25 to be in a jogged with the outer wall of the sealing pair 27 to be attached to the outer wall of the piston 7.
Further, before the control valve lip is used for self-sealing, the sealing pair 25 is firstly inserted into the clamping groove 23 on one side of the gland 20, the gland 20 is plugged into the second storage groove 19 on one group of connecting pieces 15, so that the sealing pair 25 can be embedded with the groove 24, then the fastening bolt 22 is screwed into the third threaded hole 21, so that the fastening bolt 22 can fix the gland 20 on the connecting piece 15, limit the sealing pair 25 through the gland 20, and in the subsequent use process, the squirrel cage 11 is driven to move through the piston 7, and the whole sealing effect inside the valve body 1 is improved through the joint of the sealing pair 25 and the limiting groove 27 on the baffle 26.
Referring to fig. 3 and 7, an embodiment of the present utility model is provided: the utility model provides a piston type flow regulating and pressure regulating control valve lip type self sealss that is applied to in the pipeline, including retaining ring 28 and slipmat 36, the one end of storage box 3 runs through and is provided with the notch, the internal surface mounting of notch has retaining ring 28, the internal surface gomphosis of retaining ring 28 installs sealed pad 29, one side outer wall of storage box 3 is provided with symmetrical arrangement's connecting hole 30, and connecting hole 30 is located the outside of notch, sealing washer two 31 are installed to one side outer wall of storage box 3, sealing washer two 31's surface gomphosis installs sealed lid 32, sealing washer two 31 are located the centre of notch and connecting hole 30, retaining ring 28 is located one side of guide rail 4, the cross-section of sealed pad 29 is "protruding" font structure, sealed pad 29 and notch gomphosis, the surface mounting of piston 7 has evenly arranged's sealing strip 34, and one side outer wall of sealing strip 34 is laminated with one side outer wall of Y type sealing washer 6, the connecting rod 35 of symmetrical arrangement is installed to the opposite side outer wall of piston 7, and connecting rod 35 is located the inside of storage box 3, the one end of connecting rod 35 installs slipmat 36.
Further, the sealing gasket 29 is plugged into the notch, so that the sealing gasket 29 can be embedded with the retainer ring 28, then the sealing cover 32 is sleeved on the surface of the second sealing ring 31, the third screw 33 is screwed into the connecting hole 30, then the notch on the storage box 3 can be sealed through the sealing cover 32, certain convenience can be provided for subsequent maintenance work, and when the piston 7 moves to the maximum extent, the stability of the piston 7 during movement can be improved through the attachment or detachment of the anti-slip gasket 36 and the inner wall of the storage box 3 through the arrangement of the connecting rod 35 and the anti-slip gasket 36.
Further, the working procedure for controlling the lip self-sealing of the valve is as follows:
s1, before the control valve lip is used for self sealing, firstly, a sealing pair 25 is inserted into the clamping groove 23, a gland 20 is plugged into the storage groove II 19, so that the sealing pair 25 can be embedded with a groove 24, then a fastening bolt 22 is screwed into the threaded hole III 21, and then the gland 20 can be fixed on the connecting piece 15 through the fastening bolt 22;
s2, connecting the valve body 1 in a pipeline, and driving the mouse cage 11 to stretch towards the interior of the storage box 3 along the horizontal direction through the piston 7, so that the piston 7 can move along the guide rail 4 until the anti-slip pad 36 on the connecting rod 35 can be in contact with the sealing pad 29;
s3, water in the pipeline flows into the guide cylinder 18 through the squirrel cage 11 after passing through the storage box 3, the squirrel cage 11 is driven by the piston 7 to move to adjust the conveying flow in the pipeline, and when the conveying flow is not needed, the squirrel cage 11 is driven by the pushing piston 7 to extend out of the storage box 3 until the sealing strip 34 on the surface of the piston 7 can be attached to the Y-shaped sealing ring 6 in the storage groove I5;
s4, when the piston type flow and pressure regulating control valve needs to be overhauled later, the screw rod III 33 is screwed out of the connecting hole 30, then the sealing cover 32 can be removed, the sealing cover 32 is not clamped with the sealing ring II 31, the sealing gasket 29 is pulled outwards, the sealing gasket 29 is not embedded with the retainer ring 28, and the position of the piston 7 can be overhauled through the notch.
In step S1, the method further includes the steps of:
s11, screwing the first screw rod 14 into the first threaded hole 12 on the connecting plate 13, so that the first screw rod 14 can connect the squirrel cage 11 with the piston 7, the first sealing ring 9 on one side surface of the piston 7 can be clamped with one side surface of the squirrel cage 11, and then the guide cylinder 18 is fixed on one group of connecting pieces 15 through the cooperation of the second screw rod 17 and the second threaded hole 16, so that the limit groove 27 on the baffle 26 can be attached to the limit sealing block 8;
in step S3, the method further includes the steps of:
s31, the surface of the piston 7 can be driven to be attached to the limiting sealing block 8, and the sealing pair 25 can be attached to the limiting groove 27 on the baffle 26, so that the sealing effect is improved, and the probability of occurrence of the condition of insecurity sealing caused by abrasion is reduced.
Working principle: before the control valve lip self-sealing is used, the piston 7 and the mouse cage 11 are connected together through the cooperation of the screw rod I14 and the threaded hole I12, the sealing pair 25 is inserted into the clamping groove 23, the gland 20 is plugged into the interior of the object placing groove II 19, the sealing pair 25 can be embedded with the groove 24, the fastening bolt 22 is screwed into the interior of the threaded hole III 21, the gland 20 can be fixed on the connecting piece 15 through the fastening bolt 22, the screw rod II 17 is screwed into the interior of the threaded hole II 16, and the guide cylinder 18 can be connected with one group of connecting pieces 15 on the surface of the valve body 1;
the valve body 1 is installed in a pipeline, the squirrel cage 11 is driven to stretch towards the interior of the storage box 3 along the horizontal direction through the piston 7 until the anti-slip pad 36 on the connecting rod 35 can be contacted with the sealing pad 29, then water in the pipeline can bypass the storage box 3 after passing through the screen plate 2 and flows into the guide cylinder 18 through the squirrel cage 11, the squirrel cage 11 is driven to move through the piston 7, the purpose of adjusting the conveying flow in the pipeline can be achieved, when the conveying flow is not needed, the piston 7 is pushed to drive the squirrel cage 11 to extend out of the storage box 3 until the sealing strip 34 on the surface of the piston 7 can be attached to the Y-shaped sealing ring 6 in the storage groove I5, then the piston 7 can be driven to be attached to the limiting sealing block 8, and the sealing pair 25 can be attached to the limiting groove 27 on the baffle 26, so that the sealing effect is improved, and the service life of the lip-shaped self-sealing can be prolonged to a certain extent.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (2)
1. Be applied to piston type pressure regulating flow control valve lip formula self sealss in pipeline, including valve body (1), its characterized in that: the inner surface of the valve body (1) is provided with a screen plate (2), the screen plate (2) is in a horn shape, the inner surface of the screen plate (2) is provided with a storage box (3), and the storage box (3) is in a cylinder shape;
the inner surface of the storage box (3) is provided with a guide rail (4), a piston (7) is slidably mounted in the guide rail (4), a first storage groove (5) is formed in the inner surface of the storage box (3), a Y-shaped sealing ring (6) is mounted in the first storage groove (5) in a jogged mode, the inner surface of the Y-shaped sealing ring (6) is attached to the outer surface of the piston (7), a limit sealing block (8) is mounted on the inner surface of the valve body (1), the inner surface of the limit sealing block (8) is attached to the outer surface of the piston (7), a first sealing ring (9) is mounted on the outer wall of one side of the piston (7), and a squirrel cage (11) is mounted on the outer surface of the first sealing ring in a clamping mode.
The space formed by the squirrel cage (11) and the first sealing ring (9) is filled and smeared with calcium-based lubricating grease (10);
the inner surface of the squirrel cage (11) is provided with a connecting plate (13), one side outer wall of the connecting plate (13) and one side outer wall of the piston (7) are respectively provided with threaded holes I (12) which are uniformly distributed in a penetrating way, the inner threads of the threaded holes I (12) are connected with threaded rods I (14), the outer surfaces of the two ends of the valve body (1) are respectively provided with a connecting piece (15), one side outer wall of the connecting piece (15) is provided with threaded holes II (16) which are uniformly distributed in a penetrating way, and the threaded rods II (17) are respectively embedded in the threaded holes II (16);
one side outer wall of the connecting piece (15) is provided with a second storage groove (19), one side inner wall of the second storage groove (19) is provided with a third threaded hole (21) and a groove (24), the groove (24) is positioned at the inner side of the third threaded hole (21), a gland (20) is installed in the second storage groove (19) in a jogged mode, a clamping groove (23) is formed in one side outer wall of the gland (20), a sealing pair (25) is installed in the clamping groove (23) in a jogged mode, the sealing pair (25) is jogged with the groove (24), a fastening bolt (22) is connected with the other side outer wall of the gland (20) in a threaded mode, the fastening bolt (22) is connected with the third threaded hole (21), a baffle (26) is installed on the outer surface of the squirrel cage (11), a limit groove (27) is formed in one side outer wall of the baffle (26), and one side inner wall of the limit groove (27) is attached to one side outer surface of the sealing pair (25).
One end of the storage box (3) is provided with a notch in a penetrating mode, the inner surface of the notch is provided with a retainer ring (28), the inner surface of the retainer ring (28) is provided with a sealing gasket (29) in a jogged mode, the outer wall of one side of the storage box (3) is provided with symmetrically arranged connecting holes (30), the connecting holes (30) are located on the outer side of the notch, the outer wall of one side of the storage box (3) is provided with a sealing ring II (31), the outer surface of the sealing ring II (31) is provided with a sealing cover (32) in a jogged mode, the outer wall of one side of the sealing cover (32) is provided with a screw rod III (33) in an embedded mode, and the screw rod III (33) is in threaded connection with the connecting holes (30);
the outer wall of one side of one group of connecting pieces (15) is provided with a guide cylinder (18) in a fitting way, the guide cylinder (18) is positioned at the outer side of the squirrel cage (11), and the connecting pieces (15) and the guide cylinder (18) are connected together through a screw rod II (17);
the outer surface of the piston (7) is provided with sealing strips (34) which are uniformly arranged, and the outer wall of one side of each sealing strip (34) is attached to the outer wall of one side of the Y-shaped sealing ring (6);
the outer wall of the other side of the piston (7) is provided with symmetrically arranged connecting rods (35), the connecting rods (35) are positioned in the storage box (3), and one end of each connecting rod (35) is provided with an anti-slip pad (36);
the working steps of the control valve lip type self-sealing are as follows:
s1, before the control valve lip is used for self-sealing, firstly, a sealing pair (25) is inserted into a clamping groove (23), a gland (20) is plugged into a second storage groove (19) so that the sealing pair (25) can be embedded with a groove (24), then a fastening bolt (22) is screwed into a third threaded hole (21), and then the gland (20) can be fixed on a connecting piece (15) through the fastening bolt (22);
s2, connecting the valve body (1) in a pipeline, and driving the squirrel cage (11) to stretch towards the interior of the storage box (3) along the horizontal direction through the piston (7), so that the piston (7) can move along the guide rail (4) until an anti-slip pad (36) on the connecting rod (35) can be contacted with the sealing pad (29);
s3, water in the pipeline flows into the guide cylinder (18) through the squirrel cage (11) after passing through the storage box (3), the squirrel cage (11) is driven by the piston (7) to move to adjust the conveying flow in the pipeline, and when the conveying flow is not needed, the piston (7) is pushed to drive the squirrel cage (11) to extend out of the storage box (3) until the sealing strip (34) on the surface of the piston (7) can be attached to the Y-shaped sealing ring (6) in the storage groove I (5);
s4, when the piston type flow regulating and pressure regulating control valve needs to be overhauled later, firstly, the screw rod III (33) is screwed out of the connecting hole (30), then the sealing cover 32 can be removed, the sealing cover 32 is not clamped with the sealing ring II (31), the sealing gasket 29 is pulled outwards, the sealing gasket 29 is not embedded with the check ring 28, and then the position of the piston (7) can be overhauled through the notch;
in step S1, the method further includes the steps of:
s11, screwing the first screw rod (14) into the first threaded hole (12) on the connecting plate (13), so that the first screw rod (14) can connect the squirrel cage (11) with the piston (7), the first sealing ring (9) on one side surface of the piston (7) can be clamped with one side surface of the squirrel cage (11), and then the guide cylinder (18) is fixed on one group of connecting pieces (15) through the cooperation of the second screw rod (17) and the second threaded hole (16), so that the limiting groove (27) on the baffle plate (26) can be jointed with the limiting sealing block (8);
in step S3, the method further includes the steps of:
s31, the surface of the piston (7) can be driven to be attached to the limiting sealing block (8), and the sealing pair (25) can be attached to the limiting groove (27) on the baffle plate (26), so that the sealing effect is improved, and the probability of occurrence of the condition of unstable sealing caused by abrasion is reduced.
2. The piston type flow-regulating pressure-regulating control valve lip type self-sealing device applied to a pipeline according to claim 1, wherein: the storage box (3) is positioned in the valve body (1), the cross section of the first sealing ring (9) is of an O-shaped structure, and the piston (7) can drive the squirrel cage (11) to move in the valve body (1) along the horizontal direction;
the cross section of the groove (24) is L-shaped, the cross section of the clamping groove (23) is of a concave structure, the cross section of the sealing pair (25) is of an L-shaped structure, when the piston (7) drives the squirrel cage (11) to move, the sealing pair (25) can be clamped with the limiting groove (27), and the outer wall of the other side of the baffle (26) is attached to the outer wall of one side of the piston (7);
the second sealing ring (31) is positioned between the notch and the connecting hole (30), the retainer ring (28) is positioned on one side of the guide rail (4), the cross section of the sealing gasket (29) is of a convex structure, and the sealing gasket (29) is embedded with the notch.
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|---|---|---|---|
| CN202211187189.0A CN115711291B (en) | 2022-09-28 | 2022-09-28 | Piston type flow-regulating pressure-regulating control valve lip type self-sealing device applied to pipeline |
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| CN202211187189.0A CN115711291B (en) | 2022-09-28 | 2022-09-28 | Piston type flow-regulating pressure-regulating control valve lip type self-sealing device applied to pipeline |
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| CN115711291B true CN115711291B (en) | 2023-10-13 |
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| CN114396494A (en) * | 2022-01-23 | 2022-04-26 | 芜湖市金贸流体科技股份有限公司 | Piston type electric flow-regulating pressure-regulating valve and working method thereof |
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| CN102927332A (en) * | 2012-11-06 | 2013-02-13 | 株洲南方阀门股份有限公司 | Piston type control valve |
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