CN117869627A - Cock type reversing device - Google Patents
Cock type reversing device Download PDFInfo
- Publication number
- CN117869627A CN117869627A CN202410284014.4A CN202410284014A CN117869627A CN 117869627 A CN117869627 A CN 117869627A CN 202410284014 A CN202410284014 A CN 202410284014A CN 117869627 A CN117869627 A CN 117869627A
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- Prior art keywords
- locking
- valve
- sealing ring
- valve core
- driving
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- Granted
Links
- 238000007789 sealing Methods 0.000 claims abstract description 60
- 230000006698 induction Effects 0.000 claims abstract description 47
- 230000033228 biological regulation Effects 0.000 claims abstract description 13
- 238000003780 insertion Methods 0.000 claims description 17
- 230000037431 insertion Effects 0.000 claims description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- 239000000463 material Substances 0.000 claims description 11
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 230000001276 controlling effect Effects 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 230000008961 swelling Effects 0.000 claims description 3
- 239000011148 porous material Substances 0.000 claims description 2
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 230000001737 promoting effect Effects 0.000 claims 1
- 238000009434 installation Methods 0.000 description 7
- 230000001965 increasing effect Effects 0.000 description 5
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/08—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks
- F16K11/085—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks with cylindrical plug
- F16K11/0853—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks with cylindrical plug having all the connecting conduits situated in a single plane perpendicular to the axis of the plug
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/14—Actuating devices; Operating means; Releasing devices actuated by fluid for mounting on, or in combination with, hand-actuated valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K35/00—Means to prevent accidental or unauthorised actuation
- F16K35/02—Means to prevent accidental or unauthorised actuation to be locked or disconnected by means of a pushing or pulling action
- F16K35/022—Means to prevent accidental or unauthorised actuation to be locked or disconnected by means of a pushing or pulling action the locking mechanism being actuated by a separate actuating element
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K35/00—Means to prevent accidental or unauthorised actuation
- F16K35/10—Means to prevent accidental or unauthorised actuation with locking caps or locking bars
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
- F16K37/0075—For recording or indicating the functioning of a valve in combination with test equipment
- F16K37/0091—For recording or indicating the functioning of a valve in combination with test equipment by measuring fluid parameters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/04—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having cylindrical surfaces; Packings therefor
- F16K5/0457—Packings
- F16K5/0471—Packings between housing and plug
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanically-Actuated Valves (AREA)
Abstract
The application relates to the field of multi-channel plug valves, in particular to a plug type reversing device, which comprises a valve body, a valve core, a valve cover, a driving handle, a first sealing ring, a locking assembly and an induction assembly; the valve body is internally provided with an adjusting cavity for installing the valve core, the valve core is rotatably abutted with the cavity wall of the adjusting cavity, one end of the adjusting cavity penetrates through the valve body, the valve cover is covered on the adjusting cavity, one end of the driving handle is located outside the valve body, the other end of the driving handle is coaxially connected with the valve core, the first sealing ring is installed at one end of the valve cover, which is opposite to the adjusting cavity, of the valve cover, the sensing assembly is located in the first sealing ring and used for sensing whether a medium leaks into the adjusting cavity, and the locking assembly is located in the valve cover and used for locking the rotating angle of the driving handle. The utility model discloses a locking subassembly locking actuating handle's rotation position after sensing the medium and revealing can avoid the case to rotate again in order to drive more medium and get into the regulation chamber, reminds the staff to know the condition that the medium was revealed in time simultaneously, reduces the loss cost.
Description
Technical Field
The application relates to the field of multi-way plug valves, in particular to a plug type reversing device.
Background
The plug valve is a valve which is opened or closed by rotating a rotary valve in the shape of a closing member or a plunger to make a passage opening in the valve plug communicate with or separate from a passage opening in a valve body. As the pipeline system becomes more complex, a plug valve needs to control three to four blind channels simultaneously, which makes the valve body of the plug valve have three to four channel ports.
The more pipelines connected with the plug valve, the more the communication adjustment among different pipelines can also enable the opening and closing times of the plug valve to be geometrically increased, so that the rotation angle control of the plug valve is more and more precise, and the angle adjustment times of the plug can also be increased. And each time the valve plug rotates, the sealing ring in the valve body can be rubbed once, the ageing speed of the sealing ring can also be accelerated, and the service life of the plug valve can be reduced as the connecting pipeline is more.
When the tightness of the sealing valve is reduced, the medium near the valve plug can leak, flow turbulence and the like, so that the purity of the medium conveyed by the pipeline is influenced, but the leakage problem can not be found in time because the outer surface of the valve is normal at the moment, thereby influencing the conveying quality of the medium in the whole pipeline and increasing the loss cost.
Disclosure of Invention
In order to know the medium leakage condition in the plug valve in time and reduce the loss cost, the application provides a plug type reversing device.
The cock type reversing device adopts the following technical scheme:
a plug type reversing device comprises a valve body, a valve core, a valve cover, a driving handle, a first sealing ring, a locking assembly and an induction assembly;
the valve body is internally provided with an adjusting cavity for installing a valve core, the valve core is coaxially and rotatably abutted with the cavity wall of the adjusting cavity, one end of the adjusting cavity penetrates through the valve body, the valve cover is connected with the valve body and is covered on the adjusting cavity, one end of the driving handle is located outside the valve body, the other end of the driving handle is coaxially connected with the valve core, the first sealing ring is installed at one end of the valve cover, which is opposite to the adjusting cavity, of the valve cover, the sensing assembly is located in the first sealing ring and is used for sensing whether a medium leaks into the adjusting cavity, the locking assembly is located in the valve cover and is used for locking the rotating angle of the driving handle, the locking assembly is connected with the sensing assembly, and when the sensing assembly senses that the medium leaks into the adjusting cavity, the locking assembly locks the rotating position of the driving handle.
By adopting the technical scheme, under normal conditions, no effusion exists in the adjusting cavity. When the medium is leaked between case and the chamber wall of adjusting the chamber to case and valve gap between, first sealing ring can slow down the medium and reveal the speed of valve body, and response subassembly senses the medium simultaneously for locking subassembly locks actuating handle's rotation angle immediately, can avoid the case to rotate again so as to drive more medium and get into adjusting the chamber on the one hand, on the other hand when needs change medium flow direction, because actuating handle can't rotate, can remind the staff in time to know the unusual condition that the medium was revealed in the plug valve, in time maintain the change to the valve body, in order to reduce the loss cost.
Optionally, the case just is provided with the connection boss to the coaxial one end of valve gap, connection boss and driving handle coaxial fastening, the valve gap just is provided with the installation boss to the coaxial one end of valve gap, the driving jack that supplies driving handle to run through has been seted up to the valve gap, the driving jack runs through the installation boss, the installation boss is located to the coaxial cover of first sealing ring, the both ends of first sealing ring support case and valve gap tightly respectively.
Through adopting above-mentioned technical scheme, improve the joint strength between driving handle and the case through installation boss and the connection boss on the one hand, on the other hand provides the space to the installation of first sealing ring, locks the position of first sealing ring through the installation boss to strengthen the leakproofness between valve gap, driving handle and the case, avoid the medium to reveal from driving handle.
Optionally, the locking assembly comprises a locking inserted bar and a pushing sliding bar;
the wall of the driving jack is radially provided with a locking slide hole for the insertion of the locking inserting rod, the peripheral wall of the driving handle is provided with the locking jack for the insertion of the locking inserting rod, one end of the installation boss, which is opposite to the connection boss, is provided with a pushing slide hole for pushing the sliding rod to slide along the axis direction of the driving jack, the pushing slide hole is communicated with one end, which is opposite to the locking slide hole, of the locking slide hole, one end, which is opposite to the locking slide hole, is a pushing inclined surface in sliding butt with the locking inserting rod, one side, which is close to the valve core, of the pushing inclined surface is obliquely arranged in the direction, which is close to the locking inserting rod, of the driving slide rod, and the induction component is used for controlling the pushing sliding rod to slide along the direction, which is close to the locking slide hole.
By adopting the technical scheme, when the driving handle rotates normally, the locking inserted bar is completely positioned in the locking sliding hole, and the pushing sliding bar is completely positioned in the pushing sliding hole. When the sensing component senses the leaked medium, the sensing component controls the pushing slide rod to slide into the locking slide hole, and at the moment, one end of the locking inserted rod can be pushed to be inserted into the locking jack through the pushing inclined plane, so that the position of the driving handle is locked.
Optionally, the locking inserted bar just is the cambered surface to the one end of drive pivot hole, the locking jack is provided with a plurality ofly around driving handle circumference interval, and adjacent two clearance between the locking jack is less than the diameter of locking inserted bar.
Through adopting above-mentioned technical scheme, make locking inserted bar insert locking jack more smooth, when locking inserted bar is located between two locking jacks, driving handle once begins to rotate, locking inserted bar just can insert one of them locking jack smoothly to lock driving handle.
Optionally, the sensing component comprises a first sensing strip and a second sensing strip;
the first sealing ring is internally provided with a first induction groove coaxially communicated with the pushing sliding hole, the first induction strip is positioned in the first induction groove and is abutted against one end of the pushing sliding rod, which deviates from the pushing inclined plane, the first sealing ring is opposite to the end face of the valve core, along the radial direction of the valve core, provided with a second induction groove communicated with the first induction groove, the second induction strip is positioned in the second induction groove, two ends of the second induction strip are respectively abutted against the cavity wall of the adjusting cavity and the first induction strip, and the first induction strip and the second induction strip are made of water-swelling materials.
Through adopting above-mentioned technical scheme, when the medium was revealed, the medium overflowed from between case and the chamber wall in regulation chamber, and the medium gradually contacted with second induction strip, first induction strip this moment, because meet water expansion material meet water and just can increase, the expansion direction of second induction strip and first induction strip is injectd through the position in first induction tank and second induction tank, thereby promotes the slide bar and slides along the direction that is close to the locking slide hole through the expansion in proper order of second induction strip and first induction strip, makes the locking inserted bar insert locking jack.
Optionally, be provided with the second sealing ring between valve body and the case, the second sealing ring includes interconnect's first ring section, second ring section and third ring section, first ring section and case and the chamber wall butt in regulation chamber, first ring section is connected with first sealing ring, second ring section and third ring section are located first ring section both sides respectively, set up the first annular that supplies second ring section male on the chamber wall in regulation chamber, set up the second annular that supplies third ring section male on the case.
By adopting the technical scheme, the sealing performance between the valve core and the valve body is further increased through the second sealing ring, the sealing path between the valve body and the valve core is complicated, and meanwhile, the abrasion of the valve core when the valve core is directly in rotary contact with the valve body is reduced, so that the probability of medium leakage is reduced.
Optionally, an expansion cavity communicating the first ring segment, the second ring segment and the third ring segment is formed in the second sealing ring, a water-swelling material is placed in the expansion cavity, a water inlet cavity is formed at the position, opposite to the valve core, of the first ring segment, and the water inlet cavity is located at one side, opposite to the first sealing ring, of the expansion cavity and is communicated with the expansion cavity.
Through adopting above-mentioned technical scheme, when the medium was revealed to the regulation chamber department between case and the valve gap, the medium can get into the inflation intracavity through the inlet chamber, can further increase the tight dynamics of support between second sealing ring and valve body, the case after the expansion of water swelling material, improves the leakproofness between to valve body, the case to reduce revealing of medium, reduce loss.
Optionally, install drive assembly on the valve gap, drive assembly includes actuating cylinder, first branch and second branch, actuating cylinder articulates and installs in the valve gap and the output shaft lays along the axis direction of perpendicular to actuating handle, actuating cylinder is located actuating handle one side, first branch is fixed in actuating cylinder's output shaft, second branch one end and actuating handle fixed connection, the other end of second branch rotates with first branch along the axis direction that is on a parallel with actuating handle and articulates.
Through adopting above-mentioned technical scheme, thereby drive the axis rotation of second branch around driving handle through the flexible of driving cylinder output shaft to drive driving handle self and rotate, improve the rotation precision of case, reduce case rotation angle's adjustment number of times and mistake number of times, with the reduction to the wearing and tearing of first sealing ring and second sealing ring, increase of service life.
Optionally, pressure sensor is installed to the pore wall of locking jack, be connected with the controller between pressure sensor and the actuating cylinder, when locking inserted bar and pressure sensor butt, the controller control actuating cylinder stop work, actuating handle stop rotates.
Through adopting above-mentioned technical scheme, when the medium leaks, locking inserted bar inserts locking jack and pressure sensor butt, and the actuating cylinder stops rotating immediately to in time control the inside condition of valve body, avoid the valve body in the condition further worsen.
Optionally, four passage openings communicated with the adjusting cavity are uniformly arranged on the peripheral wall of the valve body at intervals, two flow passages are formed in the valve core, the flow passages are arc-shaped, two ends of each flow passage are respectively communicated with two adjacent passage openings, and the two flow passages are symmetrically distributed around the axis of the valve core.
Through adopting above-mentioned technical scheme, the contained angle between two adjacent passports is 90 degrees, and when two passports are linked together to one of them runner, another runner intercommunication two other passports, this just makes the case rotate 90 degrees just can realize the intercommunication, disconnection and the three kinds of states of switching-over of passports fast to reduce case rotation radian, extension first sealing ring and second sealing ring's life.
In summary, the present application includes at least one of the following beneficial technical effects:
when the medium leaks from between the valve core and the cavity wall of the adjusting cavity to between the valve core and the valve cover, the sensing component senses the medium, so that the locking component immediately locks the rotation angle of the driving handle, the valve core can be prevented from rotating again to drive more medium to enter the adjusting cavity, and the driving handle can remind a worker of timely knowing the abnormal condition of medium leakage in the plug valve so as to reduce loss cost;
when the sensing component senses the leaked medium, the sensing component controls the pushing slide rod to slide into the locking slide hole, and at the moment, one end of the locking inserted rod can be pushed to be inserted into the locking jack through the pushing inclined plane, so that the position of the driving handle is locked;
the medium can gradually contact with the second sensing strip and the first sensing strip when overflowing, the expansion directions of the second sensing strip and the first sensing strip are limited through the positions of the first sensing groove and the second sensing groove, and the second sensing strip and the first sensing strip are sequentially expanded so as to push the pushing slide rod to slide along the direction close to the locking slide hole, so that the locking inserting rod is inserted into the locking insertion hole.
Drawings
Fig. 1 is a schematic view of the internal structure of the tap-type reversing device of the present application.
FIG. 2 is a schematic view of the cross-section A-A of FIG. 1.
Fig. 3 is a schematic view of the valve cartridge of fig. 2 rotated 90 degrees.
FIG. 4 is a schematic illustration of the position of the drive assembly of FIG. 3 after rotation of the valve spool.
Fig. 5 is an enlarged schematic view of a portion B in fig. 1.
Fig. 6 is an enlarged schematic view of a portion C in fig. 1.
FIG. 7 is a schematic view of the internal structure of a second seal ring in an embodiment of the present application.
Reference numerals illustrate:
1. a valve body; 11. a regulating chamber; 12. a first ring groove; 13. a passage opening; 2. a valve core; 21. a connecting boss; 22. a second ring groove; 23. a flow passage; 3. a valve cover; 31. a mounting boss; 32. driving the jack; 33. locking the sliding hole; 34. pushing the slide hole; 4. a drive handle; 41. locking the jack; 5. a first seal ring; 51. a first induction tank; 52. a second induction tank; 6. a locking assembly; 61. locking the inserted link; 62. pushing the slide bar; 621. pushing the inclined plane; 7. an induction assembly; 71. a first sensor bar; 72. a second sensor bar; 8. a second seal ring; 81. a first ring segment; 82. a second ring segment; 83. a third ring segment; 84. an expansion chamber; 85. a water inlet cavity; 9. a drive assembly; 91. a driving cylinder; 92. a first strut; 93. a second strut; 100. a pressure sensor; 101. and a controller.
Detailed Description
The present application is described in further detail below in conjunction with figures 1-7.
It should be noted that, in the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
The embodiment of the application discloses a cock type reversing device.
Referring to fig. 1 and 2, the tap-type reversing device includes a valve body 1, a valve cartridge 2, a valve cover 3, a driving handle 4, a first seal ring 5, a second seal ring 8, and a driving assembly 9.
An adjusting cavity 11 for installing the valve core 2 is formed in the valve body 1, and the valve core 2 is coaxially and rotatably abutted with the cavity wall of the adjusting cavity 11. One end of the adjusting cavity 11 penetrates through the valve body 1, and the valve cover 3 is connected with the valve body 1 and covers the adjusting cavity 11 so as to facilitate assembling the reversing device. Four passage ports 13 communicated with the adjusting cavity 11 are uniformly arranged on the periphery of the valve body 1 at intervals, and the included angle between the axes of two adjacent passage ports 13 is 90 degrees. Two flow passages 23 are formed in the valve core 2, the flow passages 23 are arc-shaped, two ends of each flow passage 23 are respectively used for communicating two adjacent passage openings 13, and the two flow passages 23 are symmetrically distributed around the axis of the valve core 2, so that when one flow passage 23 in the valve core 2 is communicated with the two adjacent passage openings 13, the other flow passage 23 is communicated with the remaining two adjacent passage openings 13.
In this state, when the spool 2 rotates 45 degrees counterclockwise, the ports of both the flow passages 23 abut against the chamber wall of the regulating chamber 11, and the valve body 1 is in the open state. When the spool 2 rotates 90 degrees counterclockwise, as shown in fig. 3, the positions of the two flow passages 23 are exchanged, and the passage ports 13 are in a communicating state. The valve core 2 rotates 90 degrees to realize all states, so that the rotating radian of the valve core 2 is reduced, and the valve core 2 can realize quick reversing.
In addition, in order to precisely control the rotation angle of the valve core 2 and enable the valve core 2 to be rapidly commutated, as shown in fig. 1 and 4, one end of the driving handle 4 is located outside the valve body 1, the other end is coaxially connected with the valve core 2, and the valve cover 3 is provided with a driving jack 32 through which the driving handle 4 penetrates. The driving assembly 9 is mounted on the valve cover 3, and the driving assembly 9 includes a driving cylinder 91, a first support rod 92 and a second support rod 93. The driving cylinder 91 is hinge-mounted to the valve cover 3 and the output shaft is arranged in a direction perpendicular to the axis of the driving handle 4. The driving cylinder 91 is located one side of the driving handle 4, the first supporting rod 92 is fixed on the output shaft of the driving cylinder 91, one end of the second supporting rod 93 is fixedly connected with the driving handle 4, and the other end of the second supporting rod 93 is rotatably hinged with the first supporting rod 92 along the axis direction parallel to the driving handle 4.
The second supporting rod 93 is driven to rotate around the axis of the driving handle 4 through the extension and contraction of the output shaft of the driving cylinder 91, so that the driving handle 4 is driven to rotate, the rotation precision of the valve core 2 is improved, and the adjustment times and the error times of the rotation angle of the valve core 2 are reduced.
In order to seal between the valve body 1 and the valve body 2, referring to fig. 1 and 5, a first seal ring 5 is attached to an end of the valve cover 3 facing the adjustment chamber 11. The valve core 2 is provided with the connection boss 21 to the coaxial one end of valve gap 3, and connection boss 21 is fixed with driving handle 4 is coaxial, and valve gap 3 is provided with mounting boss 31 to the coaxial one end of valve core 2, and drive jack 32 runs through mounting boss 31, avoids valve gap 3 direct and valve core 2 contact. The first sealing ring 5 is coaxially sleeved on the mounting boss 31, so that the position of the first sealing ring 5 is limited, two ends of the first sealing ring 5 respectively abut against the valve core 2 and the valve cover 3, the tightness in the valve body 1 is improved, and leakage of a medium from the driving handle 4 is avoided.
In order to further increase the tightness between the valve body 1 and the valve body 2, referring to fig. 1 and 6, a second sealing ring 8 is provided between the valve body 1 and the valve body 2, the second sealing ring 8 including a first ring segment 81, a second ring segment 82 and a third ring segment 83 connected to each other. The first ring segment 81 is abutted with the valve core 2 and the cavity wall of the adjusting cavity 11, the first ring segment 81 is connected with the first sealing ring 5, and the second ring segment 82 and the third ring segment 83 are respectively located on two sides of the first ring segment 81. The wall of the adjusting cavity 11 is provided with a first annular groove 12 for inserting the second annular section 82, and the valve core 2 is provided with a second annular groove 22 for inserting the third annular section 83. Thereby complicating the sealing path between the valve body 1 and the valve core 2, simultaneously reducing the abrasion of the valve core 2 when directly contacting with the valve body 1 in a rotating way, and reducing the probability of medium leakage.
In addition, in order to timely find the condition of medium leakage in the valve body 1 and immediately control the condition, so that the valve body 1 is maintained and replaced in time, loss cost is reduced, referring to fig. 1 and 5, an induction component 7 for inducing whether the medium leaks into the adjusting cavity 11 is arranged in the first sealing ring 5, and a locking component 6 for locking the rotation angle of the driving handle 4 is arranged in the valve cover 3. The locking assembly 6 is connected with the sensing assembly 7.
When the sensing assembly 7 senses that the medium leaks into the adjusting chamber 11, the locking assembly 6 locks the rotational position of the driving handle 4. On the one hand, the valve core 2 can be prevented from rotating again to drive more media to enter the adjusting cavity 11, and on the other hand, when the media flow direction needs to be changed, the driving handle 4 can not rotate, so that workers can be reminded of timely knowing about the abnormal condition of the leakage of the media in the plug valve.
Referring to fig. 1 and 5, the locking assembly 6 includes a locking plunger 61 and a push slide bar 62.
The hole wall of the driving jack 32 is radially provided with a locking sliding hole 33 for inserting the locking inserting rod 61, and the peripheral wall of the driving handle 4 is provided with a locking jack 41 for inserting the locking inserting rod 61. The end of the mounting boss 31 facing the connecting boss 21 is provided with a pushing slide hole 34 for pushing the slide bar 62 to slide along the axial direction of the driving jack 32, and the pushing slide hole 34 is communicated with the end of the locking slide hole 33 facing away from the driving jack 32. When the driving handle 4 rotates normally, the locking plunger 61 is completely located in the locking slide hole 33, and the pushing slide bar 62 is completely located in the pushing slide hole 34.
One end of the pushing slide rod 62, which is opposite to the locking slide hole 33, is a pushing inclined surface 621 in sliding contact with the locking insert rod 61, one side of the pushing inclined surface 621, which is close to the valve core 2, is obliquely arranged towards the direction close to the locking insert rod 61, and the sensing assembly 7 is used for controlling the pushing slide rod 62 to slide along the direction close to the locking slide hole 33. When the sensing assembly 7 senses the leaked medium, the sensing assembly 7 controls the pushing slide bar 62 to slide into the locking slide hole 33, and the pushing inclined surface 621 can push one end of the locking insert bar 61 to be inserted into the locking insertion hole 41, so that the position of the driving handle 4 is locked.
When the positions of the locking insertion holes 41 are different from the positions of the locking slide holes 33, referring to fig. 5, one end of the locking insertion rod 61 facing the driving rotation hole is an arc surface, the locking insertion holes 41 are circumferentially spaced around the driving handle 4, and the gap between two adjacent locking insertion holes 41 is smaller than the diameter of the locking insertion rod 61. When the locking plunger 61 is located between the two locking insertion holes 41, the locking plunger 61 can be smoothly inserted into one of the locking insertion holes 41 once the driving handle 4 starts to rotate.
In order to stop the rotation of the driving handle 4 immediately, a pressure sensor 100 is mounted on the wall of the locking insertion hole 41, and a controller 101 is electrically connected between the pressure sensor 100 and the driving cylinder 91. When the locking plunger 61 abuts against the pressure sensor 100, the controller 101 controls the driving cylinder 91 to stop working, and the driving handle 4 stops rotating to realize locking, so that the internal condition of the valve body 1 is controlled in time, and further deterioration of the internal condition of the valve body 1 is avoided.
Referring to fig. 1 and 5, the sensing assembly 7 includes a first sensing bar 71 and a second sensing bar 72.
The first sealing ring 5 is internally provided with a first induction groove 51 coaxially communicated with the pushing slide hole 34, and the first induction strip 71 is positioned in the first induction groove 51 and is abutted against one end of the pushing slide rod 62, which is away from the pushing inclined surface 621.
As shown in fig. 1 and 6, a second induction groove 52 communicated with the first induction groove 51 is formed in the end surface of the first sealing ring 5, which is opposite to the valve core 2, along the radial direction of the valve core 2, a second induction strip 72 is positioned in the second induction groove 52, and two ends of the second induction strip 72 are respectively abutted with the cavity wall of the adjusting cavity 11 and the first induction strip 71. First sensing strip 71 and second sensing strip 72 are both water-swellable materials.
When the medium leaks, the medium overflows from between the valve core 2 and the cavity wall of the adjusting cavity 11, and at this time, the medium gradually contacts with the second sensing strip 72 and the first sensing strip 71, the water volume of the water swelling material increases, and the expansion directions of the second sensing strip 72 and the first sensing strip 71 are limited by the positions of the first sensing groove 51 and the second sensing groove 52, so that the second sensing strip 72 and the first sensing strip 71 are sequentially expanded to push the pushing slide rod 62 to slide along the direction close to the locking slide hole 33 until the locking insert rod 61 is inserted into the locking insertion hole 41.
The leakage of the medium from the gap between the valve core 2 and the valve body 1 represents that the second sealing ring 8 between the valve core 2 and the valve body 1 is in a failure state, and in order to further reduce the gap between the valve core 2 and the valve body 1 and reduce the leakage of the medium, referring to fig. 7, an expansion cavity 84 communicating the first ring segment 81, the second ring segment 82 and the third ring segment 83 is formed in the second sealing ring 8. The expansion cavity 84 is internally provided with a water-swellable material, the position of the first ring section 81, which is opposite to the valve core 2, is provided with a water inlet cavity 85, and the water inlet cavity 85 is positioned on one side of the expansion cavity 84, which is opposite to the first sealing ring 5, and is communicated with the expansion cavity 84. As shown in fig. 6 and 7, expansion chamber 84 and second sensing grooves 52 are staggered to prevent second sensing strip 72 from entering expansion chamber 84 when it expands.
When the medium leaks to the adjusting cavity 11 between the valve core 2 and the valve cover 3, the medium can enter the expansion cavity 84 through the water inlet cavity 85, and after being expanded, the water-swelling material can be further enlarged so as to press the second sealing ring 8 from inside to outside, so that the tight supporting force between the second sealing ring 8 and the valve body 1 and between the second sealing ring 8 and the valve core 2 is increased, the tightness between the valve body 1 and the valve core 2 is improved, and the leakage of the medium is reduced.
The implementation principle of the cock type reversing device provided by the embodiment of the application is as follows: when the second sealing ring 8 fails. When the medium leaks into the adjusting cavity 11 between the valve core 2 and the valve cover 3, the medium can enter the expansion cavity 84 through the water inlet cavity 85, so that the water-swelling material in the expansion cavity 84 swells to squeeze the second sealing ring 8, the second sealing ring 8 further abuts against the valve body 1 and the valve core 2, and the leakage of the medium is reduced. Simultaneously the medium contacts with first response strip 71 and second response strip 72 in proper order, and first response strip 71 and second response strip 72 swell in order to promote slide bar 62 to slide into locking slide hole 33, promotes locking inserted bar 61 through promotion inclined plane 621 and inserts locking jack 41 and butt with pressure sensor 100, and driving handle 4 stops rotating, and driving cylinder 91 stops the operation, can remind the staff in time to know the unusual condition that the medium was revealed in the plug valve, in time maintains the change to valve body 1 to reduce the loss cost.
The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.
Claims (10)
1. The plug type reversing device is characterized by comprising a valve body (1), a valve core (2), a valve cover (3), a driving handle (4), a first sealing ring (5), a locking assembly (6) and an induction assembly (7);
offer in valve body (1) and be used for installing regulation chamber (11) of case (2), the coaxial butt that rotates of chamber wall of case (2) and regulation chamber (11), regulation chamber (11) one end runs through valve body (1), valve gap (3) are connected and cover in regulation chamber (11) with valve body (1), actuating lever (4) one end is located valve body (1) and the other end and case (2) coaxial coupling, first sealing ring (5) are installed in valve gap (3) just to the one end of regulation chamber (11), sensing assembly (7) are located first sealing ring (5) and are used for the sensing medium to reveal to regulation chamber (11), locking assembly (6) are located valve gap (3) and are used for locking actuating lever (4) rotation angle, locking assembly (6) are connected with sensing assembly (7), when sensing assembly (7) senses the medium and reveal to regulation chamber (11), locking assembly (6) locks the rotation position of actuating lever (4).
2. The plug type reversing device according to claim 1, wherein a connecting boss (21) is coaxially arranged at one end of the valve core (2) opposite to the valve cover (3), the connecting boss (21) is coaxially fixed with the driving handle (4), a mounting boss (31) is coaxially arranged at one end of the valve cover (3) opposite to the valve core (2), a driving jack (32) for the driving handle (4) to penetrate is formed in the valve cover (3), the driving jack (32) penetrates through the mounting boss (31), the mounting boss (31) is coaxially sleeved with the first sealing ring (5), and two ends of the first sealing ring (5) respectively abut against the valve core (2) and the valve cover (3).
3. A tap changer according to claim 2, characterised in that the locking assembly (6) comprises a locking plunger (61) and a push slide (62);
the utility model discloses a drive jack (32) the pore wall radial has offered and has supplied locking inserted bar (61) male locking slide hole (33), supply locking inserted bar (61) male locking jack (41) have been offered to the perisporium of driving handle (4), install boss (31) just offer and supply to promote sliding rod (62) along the gliding promotion slide hole (34) of axis direction of drive jack (32) to the one end of connection boss (21), promote slide hole (34) and locking slide hole (33) one end intercommunication that deviates from drive jack (32), promote sliding rod (62) just to be for with locking slide hole (33) one end promotion inclined plane (621) of locking inserted bar (61) slip butt, one side that promotes inclined plane (621) to be close to case (2) is laid towards the direction slope that is close to locking inserted bar (61), sensing component (7) are used for controlling to promote sliding rod (62) along the direction that is close to locking slide hole (33).
4. A tap-changing device according to claim 3, characterised in that the end of the locking spigot (61) facing the drive rotation hole is a cambered surface, the locking insertion holes (41) are circumferentially spaced around the drive handle (4) and the gap between two adjacent locking insertion holes (41) is smaller than the diameter of the locking spigot (61).
5. A tap-changing arrangement according to claim 3, characterised in that the sensing assembly (7) comprises a first sensing strip (71) and a second sensing strip (72);
first sealing ring (5) in set up with promote first induction groove (51) of slide hole (34) coaxial intercommunication, first induction strip (71) are located first induction groove (51) and deviate from the one end butt of promoting inclined plane (621) with promotion slide bar (62), first sealing ring (5) are just to the terminal surface of case (2) along the radial second induction groove (52) of seting up with first induction groove (51) intercommunication of case (2), second induction strip (72) are located second induction groove (52), the both ends of second induction strip (72) respectively with the chamber wall and the first induction strip (71) butt of regulation chamber (11), first induction strip (71) and second induction strip (72) are water swelling material.
6. A tap-type reversing device according to claim 5, characterized in that a second sealing ring (8) is arranged between the valve body (1) and the valve core (2), the second sealing ring (8) comprises a first ring section (81), a second ring section (82) and a third ring section (83) which are mutually connected, the first ring section (81) is abutted with the valve core (2) and the cavity wall of the adjusting cavity (11), the first ring section (81) is connected with the first sealing ring (5), the second ring section (82) and the third ring section (83) are respectively positioned at two sides of the first ring section (81), a first ring groove (12) for inserting the second ring section (82) is formed in the cavity wall of the adjusting cavity (11), and a second ring groove (22) for inserting the third ring section (83) is formed in the valve core (2).
7. The plug type reversing device according to claim 6, wherein an expansion cavity (84) for communicating the first ring section (81), the second ring section (82) and the third ring section (83) is formed in the second sealing ring (8), water-swelling materials are placed in the expansion cavity (84), a water inlet cavity (85) is formed at the position, opposite to the valve core (2), of the first ring section (81), and the water inlet cavity (85) is located at one side, opposite to the first sealing ring (5), of the expansion cavity (84) and is communicated with the expansion cavity (84).
8. A tap-type reversing device according to claim 3, characterized in that the valve cover (3) is provided with a driving assembly (9), the driving assembly (9) comprises a driving cylinder (91), a first supporting rod (92) and a second supporting rod (93), the driving cylinder (91) is hinged to the valve cover (3) and the output shaft is arranged along the axis direction perpendicular to the driving handle (4), the driving cylinder (91) is positioned on one side of the driving handle (4), the first supporting rod (92) is fixed on the output shaft of the driving cylinder (91), one end of the second supporting rod (93) is fixedly connected with the driving handle (4), and the other end of the second supporting rod (93) is hinged to the first supporting rod (92) in a rotating manner along the axis direction parallel to the driving handle (4).
9. A tap changer according to claim 8, wherein a pressure sensor (100) is mounted on the wall of the locking insertion hole (41), a controller (101) is electrically connected between the pressure sensor (100) and the driving cylinder (91), and when the locking insertion rod (61) abuts against the pressure sensor (100), the controller (101) controls the driving cylinder (91) to stop working, and the driving handle (4) stops rotating.
10. A tap-type reversing device according to claim 1, characterized in that four passage openings (13) communicated with the regulating cavity (11) are uniformly arranged on the peripheral wall of the valve body (1) at intervals, two flow passages (23) are formed in the valve core (2), the flow passages (23) are arc-shaped, two ends of each flow passage are respectively communicated with two adjacent passage openings (13), and the two flow passages (23) are symmetrically distributed around the axis of the valve core (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410284014.4A CN117869627B (en) | 2024-03-13 | 2024-03-13 | Cock type reversing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410284014.4A CN117869627B (en) | 2024-03-13 | 2024-03-13 | Cock type reversing device |
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| CN117869627A true CN117869627A (en) | 2024-04-12 |
| CN117869627B CN117869627B (en) | 2024-06-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202410284014.4A Active CN117869627B (en) | 2024-03-13 | 2024-03-13 | Cock type reversing device |
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|---|---|
| CN117869627B (en) | 2024-06-11 |
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