CN118548348B - Self-tightening seal-shaped reversing valve structure - Google Patents
Self-tightening seal-shaped reversing valve structure Download PDFInfo
- Publication number
- CN118548348B CN118548348B CN202411025186.6A CN202411025186A CN118548348B CN 118548348 B CN118548348 B CN 118548348B CN 202411025186 A CN202411025186 A CN 202411025186A CN 118548348 B CN118548348 B CN 118548348B
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- wall
- valve body
- sealing
- reversing valve
- rod
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- 239000002775 capsule Substances 0.000 claims abstract description 40
- 238000007789 sealing Methods 0.000 claims description 70
- 238000009434 installation Methods 0.000 claims description 26
- 238000003825 pressing Methods 0.000 claims description 8
- 230000000694 effects Effects 0.000 abstract description 7
- 238000000034 method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 5
- 230000000903 blocking effect Effects 0.000 description 4
- 244000309464 bull Species 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012824 chemical production Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 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
- F16K11/06—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements
- F16K11/065—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members
- F16K11/07—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members with cylindrical slides
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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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/04—Construction of housing; Use of materials therefor of sliding valves
- F16K27/041—Construction of housing; Use of materials therefor of sliding valves cylindrical slide valves
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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
- F16K31/122—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston
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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
- F16K31/44—Mechanical actuating means
- F16K31/53—Mechanical actuating means with toothed gearing
- F16K31/54—Mechanical actuating means with toothed gearing with pinion and rack
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pipe Accessories (AREA)
Abstract
The invention provides a self-tightening sealed reversing valve structure, which relates to the technical field of reversing valves and comprises a bottom plate and a valve body assembly; the mounting box is mounted on the upper surface of the bottom plate and positioned on one side of the valve body assembly through bolts, and the mounting seat is fixedly arranged on the upper surface of the bottom plate and positioned on one side of the mounting box; the valve body assembly comprises a reversing valve body, the outer wall of reversing valve body has set firmly the trunk line, the outer wall of reversing valve body and kept away from one side of trunk line has set firmly first pipeline and second pipeline, reversing valve body's inside sliding connection has the slide bar, before the final realization of this case switches and after the switching can both adopt first cam atress first rubber capsule and second rubber capsule can carry out the expansion seal of secondary to the slip seam position between slide bar and the shutoff board after two kinds of switching, and the user can also keep self-tightening even under the circumstances of manual regulation like this to the effectual sealed effect that improves reversing valve body, can avoid the medium to reveal.
Description
Technical Field
The invention relates to the technical field of reversing valves, in particular to a self-tightening sealing reversing valve structure.
Background
The reversing valve is one kind of valve and has several adjustable channels to change the flow direction of fluid timely. The change valve has wide application in petroleum and chemical production and is most commonly used in a synthetic ammonia gas making system. In addition, the reversing valve can also be made into a valve clack structure, and is mostly used for occasions with smaller flow. When in work, the hand wheel is only required to be rotated to change the flow direction of the working fluid through the valve clack.
The patent number is CN214534634U discloses a manual reversing valve convenient to maintain in petroleum industry, belongs to manual reversing valve technical field, including the reversing valve, the inside supporting case that is provided with of reversing valve, reversing valve below is provided with the oil inlet in a supporting way, and reversing valve top is provided with the oil-out in a supporting way, reversing valve one side fixedly connected with sleeve pipe, reversing valve one end fixedly connected with first ring flange, sleeve pipe one side fixedly connected with second ring flange, sleeve pipe one side inside embedding is provided with the sealing washer, and the sleeve pipe is inside to be connected with the control lever through the pivot rotation. When the manual reversing valve is maintained, the manual reversing valve is required to be disassembled, the common disassembling mode is complex, at the moment, a worker unscrews the screw rod between the first flange plate and the second flange plate, then the sleeve is pulled out from one end of the reversing valve, and the problem that the disassembling mode is complex before the maintenance of the conventional manual reversing valve is solved.
However, in the actual operation of the device, the sliding rod in the middle of the reversing valve needs to perform sliding movement in the reversing process, and the situation that the force is not uniform is definitely caused by manually sliding and operating the sliding rod, so that the sealing piece is easy to excessively wear in the seam position between the sliding rod and the reversing valve under the condition of long-term sliding friction, the sealing performance in sliding reversing is affected, and meanwhile, the leakage of internal media is easy to cause, so that the end use effect of the reversing valve is affected.
Therefore, it is necessary to provide a self-sealing reversing valve structure to solve the above technical problems.
Disclosure of Invention
The invention provides a self-tightening sealing reversing valve structure, which solves the problems of excessive abrasion of a sealing part at a joint position caused by uneven force application during manual sliding in the related art, and the final sealing effect and the integral using effect of the reversing valve are caused.
In order to solve the technical problems, the self-tightening sealing reversing valve structure provided by the invention comprises a bottom plate and a valve body assembly;
The mounting box is mounted on the upper surface of the bottom plate and positioned on one side of the valve body assembly through bolts, and the mounting seat is fixedly arranged on the upper surface of the bottom plate and positioned on one side of the mounting box;
The valve body assembly comprises a reversing valve body, a main pipeline is fixedly arranged on the outer wall of the reversing valve body, a first pipeline and a second pipeline are fixedly arranged on the outer wall of the reversing valve body and far away from one side of the main pipeline, a sliding rod is connected inside the reversing valve body in a sliding mode, a first piston and a second piston are fixedly arranged on the outer wall of the sliding rod, a plugging plate is mounted on the side wall of the reversing valve body through bolts, and a sealing ring is embedded in the inner wall of the plugging plate;
The inner part of the mounting seat is rotationally connected with a turning plate, a notch is formed in the turning plate, the outer end of the sliding rod is rotationally connected with a rotating rod, and the outer wall of the rotating rod is fixedly provided with two limiting rods and a rack;
the inside mounting of install bin has first seal assembly, first seal assembly is including rotating the first gear of connecting in the install bin bottom, the top axle center department of first gear has set firmly first cam, first rubber capsule and second rubber capsule are installed respectively to the inner wall of install bin, first gas tube is installed to the outer wall seal of first rubber capsule, the outer wall seal of second rubber capsule installs the second gas tube, the outer wall of shutoff board just is located the outside of slide bar and has set firmly the installation cover, the internally mounted of installation cover has the sealing ring.
Preferably, the rack is meshed with the first gear, the outer diameters of the two limiting rods are matched with the inner wall of the notch in size, and the two limiting rods are in sliding connection with the notch.
Preferably, the first cam is mutually stressed and abutted with the first rubber bag, the first air pipe, the second air pipe and the sealing ring are in sealing installation, and the inner wall of the sealing ring is in contact with the joint between the plugging plate and the sliding rod.
Preferably, an electric drive assembly is arranged above the bottom plate, a limiting plate is connected inside the rotating rod in a sliding manner, a telescopic rod is fixedly arranged on the outer wall of the limiting plate, a positioning disc is fixedly arranged at the front end of the telescopic rod, and a clamping block is fixedly arranged on the outer wall of the positioning disc;
The electric drive assembly comprises an electric cylinder arranged on the upper surface of the bottom plate, an electric drive rod is arranged at the output end of the electric cylinder, a round groove is formed in the front end of the electric drive rod, an annular groove is formed in the inner wall of the round groove, and a through groove is formed in the inner wall of the annular groove;
the inside of installation case just is located one side of first seal assembly and installs second seal assembly, second seal assembly is including rotating the second gear of connecting in the installation incasement wall, the outer wall of second gear has set firmly the second cam, third rubber capsule and fourth rubber capsule are installed respectively to the inside of installation case, the outer wall sealing installation of fourth rubber capsule has the connecting pipe, the inside of first piston and second piston is all embedded to have the piston ring.
Preferably, the rack is mutually matched with the second gear, the connecting pipe is in sealing installation with the piston ring, and the third rubber bag is in sealing connection with the fourth rubber bag through a hose.
Preferably, the circular groove is mutually matched with the locating disc, the clamping block is mutually matched with the through groove, and the telescopic rod is in sliding connection with the rotating rod.
Preferably, the plugging device further comprises a plugging assembly, the outer wall of the electric driving rod is fixedly provided with a triangular plate, the plugging assembly comprises two mounting frames fixedly arranged on the upper surface of the bottom plate, the two mounting frames are internally provided with air bags, the two outer walls of the mounting frames are slidably connected with pressing plates, the two outer walls of the air bags are hermetically provided with plugging tubes, and the inner part of the main pipeline is provided with plugging balls.
Preferably, the air outlet end of the plugging tube is in sealing connection with the plugging ball, and the two pressing plates are in contact with the outer walls of the two air bags.
Compared with the related art, the self-tightening sealing reversing valve structure provided by the invention has the following beneficial effects:
When the medium is output from the second pipeline, the first cam is used for expanding the sealing ring by inflating and extruding the first rubber bag through the first air pipe, so that the sliding joint of the plugging plate and the sliding rod is sealed in an expanding way;
When the second pipeline is switched to the first pipeline for conveying, the first gear is pulled to rotate clockwise to control the first cam to reverse and conflict the second rubber capsule when the rack moves, so that the second air pipe is inflated to control the expansion of the sealing ring to expand and seal the sliding joint of the plugging plate and the sliding rod;
Compared with the traditional sliding reversing valve body, when the conveying direction is switched, the first cam stress can be adopted before and after switching, the first rubber capsule and the second rubber capsule can carry out secondary expansion sealing on the sliding joint position between the sliding rod and the plugging plate after two kinds of switching, and thus, even under the condition of manual adjustment, a user can keep self-tightening sealing, the sealing effect of the reversing valve body is improved effectively, and medium leakage can be avoided.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of the overall structure provided by the present invention;
FIG. 2 is a schematic illustration of the cross-sectional and internal structure of the reversing valve body and mounting case of FIG. 1;
FIG. 3 is a schematic view of the reversing valve body and the plugging plate shown in FIG. 2 in a disassembled structure;
FIG. 4 is a schematic view showing a working state of medium entering a second pipeline from a main pipeline when the turning plate shown in FIG. 2 is not turned over;
FIG. 5 is a schematic view showing a working state of medium entering a first pipeline from a main pipeline when the turning plate shown in FIG. 4 turns anticlockwise;
FIG. 6 is a schematic cross-sectional view of the mounting sleeve shown in FIG. 5;
FIG. 7 is a schematic diagram showing the rack engaging with the second gear when the rotating rod shown in FIG. 5 rotates ninety degrees counterclockwise;
FIG. 8 is a schematic diagram showing the connection between the rotating rod and the electric driving rod shown in FIGS. 1 and 2;
FIG. 9 is a schematic diagram showing a medium flowing from the main pipe into the second pipe when the electric drive rod shown in FIG. 2 and FIG. 8 is not in operation;
FIG. 10 is a schematic view showing a medium flowing from the main pipe into the first pipe and out of the first pipe when the electric drive rod shown in FIG. 9 is in operation;
FIG. 11 is a schematic cross-sectional view of the slide bar, first piston and second piston of FIG. 10;
Fig. 12 is a schematic view showing the normal operation of the triangle shown in fig. 9 and 10 in the safety stroke a.
Reference numerals illustrate:
1. a bottom plate;
2. the valve body assembly 21, the reversing valve body 22, the main pipeline 23, the first pipeline 24, the second pipeline 25, the sliding rod 26, the first piston 27, the second piston 28, the plugging plate 29 and the sealing ring;
3. A mounting box;
4. mounting seats, 5, turning plates;
6. the first sealing component, 61, a first gear, 62, a first cam, 63, a first rubber capsule, 64, a second rubber capsule, 65, a first air pipe, 66, a second air pipe, 67, a mounting sleeve, 68 and a sealing ring;
7. The second sealing component 71, a second gear 72, a second cam 73, a third rubber capsule 74, a fourth rubber capsule 75, a connecting pipe 76 and a piston ring;
8. The device comprises a plugging assembly 81, a mounting frame 82, an air bag 83, a pressing plate 84, a plugging tube 85 and a plugging ball;
9. the electric drive assembly 91, the electric cylinder 92, the electric drive rod 93, the triangular plate 94, the circular groove 95, the annular groove 96 and the through groove;
10. The device comprises a rotating rod, 11, a limiting rod, 12, a rack, 13, a notch, 14, a limiting plate, 15, a telescopic rod, 16, a positioning disc, 17 and a clamping block.
The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention provides a self-tightening sealed reversing valve structure.
First embodiment:
Referring to fig. 1 to 6, a self-tightening sealing reversing valve structure includes a bottom plate 1 and a valve body assembly 2;
The mounting box 3 is mounted on the upper surface of the bottom plate 1 and positioned on one side of the valve body assembly 2 through bolts, and the mounting seat 4 is fixedly arranged on the upper surface of the bottom plate 1 and positioned on one side of the mounting box 3;
The valve body assembly 2 comprises a reversing valve body 21, a main pipeline 22 is fixedly arranged on the outer wall of the reversing valve body 21, a first pipeline 23 and a second pipeline 24 are fixedly arranged on one side, far away from the main pipeline 22, of the outer wall of the reversing valve body 21, a sliding rod 25 is connected inside the reversing valve body 21 in a sliding mode, a first piston 26 and a second piston 27 are fixedly arranged on the outer wall of the sliding rod 25, a blocking plate 28 is arranged on the side wall of the reversing valve body 21 through bolts, and a sealing ring 29 is embedded in the inner wall of the blocking plate 28;
the inside of the mounting seat 4 is rotationally connected with a turning plate 5, a notch 13 is formed in the turning plate 5, the outer end of the sliding rod 25 is rotationally connected with a rotating rod 10, and the outer wall of the rotating rod 10 is fixedly provided with two limiting rods 11 and a rack 12;
In connection with fig. 4: in the initial state, the second piston 27 seals the internal port of the first pipe 23, and the first piston 26 is far away from the internal port of the second pipe 24, so that the medium enters the interior of the reversing valve body 21 through the main pipe 22, and then the medium is output from the second pipe 24.
In connection with fig. 5: the user turns over board 5 anticlockwise on mount pad 4, then can pull gag lever post 11 through inside notch 13 when turning over board 5 in-process of turning over, thereby gag lever post 11 can be in notch 13 slant motion and consequently atress control bull stick 10 drives slide bar 25 and do lateral displacement motion, and slide bar 25 drives first piston 26 and carries out the shutoff to second pipeline 24 when lateral movement, and the medium enters into the switching-over valve body 21 inside from trunk line 22 at this moment, accomplishes the switching-over output through first pipeline 23.
The internally mounted of install bin 3 has first seal assembly 6, first seal assembly 6 is including rotating the first gear 61 of connecting in the interior bottom of install bin 3, first cam 62 has been set firmly in the top axle center department of first gear 61, first rubber capsule 63 and second rubber capsule 64 are installed respectively to the inner wall of install bin 3, first gas tube 65 is installed to the outer wall seal of first rubber capsule 63, second gas tube 66 is installed to the outer wall seal of second rubber capsule 64, the outer wall of shutoff board 28 just is located the outside of slide bar 25 and has set firmly installation cover 67, the internally mounted of installation cover 67 has sealing ring 68.
The rack 12 is meshed with the first gear 61, the outer diameters of the two limiting rods 11 are matched with the inner wall of the notch 13 in size, and the two limiting rods 11 are in sliding connection with the notch 13.
The first cam 62 and the first rubber capsule 63 are mutually stressed and pressed, the first air pipe 65, the second air pipe 66 and the sealing ring 68 are in sealing installation, and the inner wall of the sealing ring 68 is in contact with the joint between the plugging plate 28 and the sliding rod 25.
In connection with fig. 4 and 6: when the medium is output from the second pipeline 24, the first cam 62 forces the first rubber bag 63 to be inflated through the first air pipe 65 to squeeze the sealing ring 68 to expand, so that the sliding joint of the plugging plate 28 and the sliding rod 25 is expanded and sealed.
In connection with fig. 5 and 6: when the second pipeline 24 is switched to the first pipeline 23 for conveying, the first gear 61 is pulled to rotate clockwise when the rack 12 moves, so that the first cam 62 is controlled to rotate reversely to abut against the second rubber capsule 64, the second air pipe 66 is inflated to control the sealing ring 68 to expand and seal the sliding joint of the plugging plate 28 and the sliding rod 25, an arrow in fig. 4 indicates a movement track of the first rubber capsule 63 under the action of the first cam 62, a medium communication conveying track from the main pipeline 22 to the second pipeline 24, and an arrow in fig. 5 indicates a rotation track of the first gear 61, a communication conveying track of the main pipeline 22 to the first pipeline 23 during the movement of the rack 12.
It can be appreciated that: as can be seen from fig. 3, the sealing ring 29 is provided outside the reversing valve body 21, and when in use, a user can first embed the sealing ring 29 into the outer wall of the reversing valve body 21, then close the sealing plate 28 and rotate the bolt, thereby performing the pre-sealing installation of the reversing valve body 21.
This embodiment: compared with the traditional sliding reversing valve body 21, when the conveying direction is switched, the first cam 62 can be stressed, the first rubber capsule 63 and the second rubber capsule 64 can be adopted to carry out secondary expansion sealing on the sliding joint position between the sliding rod 25 and the plugging plate 28 after two kinds of switching before and after switching, and thus, even under the condition of manual adjustment, a user can keep self-tightening sealing, the sealing effect of the reversing valve body 21 is effectively improved, and medium leakage can be avoided.
Second embodiment:
Referring to fig. 7 and 11, an electric driving assembly 9 is installed above the bottom plate 1, a limiting plate 14 is slidably connected inside the rotating rod 10, a telescopic rod 15 is fixedly arranged on the outer wall of the limiting plate 14, a positioning disc 16 is fixedly arranged at the front end of the telescopic rod 15, and a clamping block 17 is fixedly arranged on the outer wall of the positioning disc 16;
the electric drive assembly 9 comprises an electric cylinder 91 arranged on the upper surface of the bottom plate 1, an electric drive rod 92 is arranged at the output end of the electric cylinder 91, a round groove 94 is formed in the front end of the electric drive rod 92, a ring groove 95 is formed in the inner wall of the round groove 94, and a through groove 96 is formed in the inner wall of the ring groove 95;
In connection with fig. 7: the user rotates the rotating rod 10 by ninety degrees counterclockwise, the rack 12 moves away from the first gear 61 during ninety degrees rotation of the rotating rod 10, the rack 12 moves downward to be in meshed contact with the second gear 71, the ninety degrees rotation also controls the stop lever 11 to be separated from the notch 13, and an arrow in fig. 7 indicates a movement track of the rotating rod 10.
In connection with fig. 8: when the rotary rod 10 and the electric drive rod 92 are installed, a user can pull the telescopic rod 15 inside the rotary rod 10 to extend the telescopic rod, then the clamping block 17 and the through groove 96 are required to be checked, the positioning disc 16 is pushed to completely enter the circular groove 94 after the checking is completed, and then the positioning disc 16 is rotated to enable the clamping block 17 and the through groove 96 to be misplaced so as to rotate and enter the annular groove 95, so that the rotary rod 10 and the electric drive rod 92 are connected.
The second seal assembly 7 is installed to inside and the one side that is located first seal assembly 6 of installation case 3, second seal assembly 7 is including rotating the second gear 71 of connecting in the inner wall of installation case 3, the outer wall of second gear 71 has set firmly second cam 72, third rubber capsule 73 and fourth rubber capsule 74 are installed respectively to the inside of installation case 3, connecting pipe 75 is installed to the outer wall seal of fourth rubber capsule 74, the inside of first piston 26 and second piston 27 has all embedded piston ring 76.
In connection with fig. 9: in the initial condition of switching from the manual state to the electrically driven state, the medium is fed from the main pipe 22 into the secondary pipe 24 to complete the output, and in this state, the second cam 72 is pressed to inflate the piston rings 76 inside the first piston 26 and the second piston 27 through the connection pipe 75, so that the inner wall of the diverter valve body 21 can be sealed, and the arrow in fig. 9 indicates that the main pipe 22 communicates with the conveying track in the electrically driven state and the secondary pipe 24.
In connection with fig. 10: during switching, a user can start the electric cylinder 91 to drive the electric driving rod 92 to move leftwards, the electric driving rod 92 drives the rotating rod 10 to move so as to plug the first piston 26 on the second pipeline 24, thus medium enters from the main pipeline 22 and is output from the first pipeline 23, switching from the second pipeline 24 to the first pipeline 23 is realized, when the rotating rod 10 moves, the rack 12 is driven to move so as to control the second gear 71 to rotate anticlockwise to control the second cam 72 to switch so as to control the fourth rubber capsule 74 to press the connecting pipe 75 to inflate so as to control the piston ring 76 to expand, and in fig. 10, an arrow indicates that the electric driving rod 92 moves so as to drive the second gear 71 to rotate anticlockwise, and the main pipeline 22 and the first pipeline 23 are communicated with each other.
The rack 12 is mutually matched with the second gear 71, the connecting pipe 75 is in sealing installation with the piston ring 76, and the third rubber capsule 73 is in sealing connection with the fourth rubber capsule 74 through a hose.
The round groove 94 is mutually matched with the locating disc 16, the clamping block 17 is mutually matched with the through groove 96, and the telescopic rod 15 is in sliding connection with the rotary rod 10.
It can be appreciated that: as can be seen from fig. 11, the connecting tube 75 is designed as a hose, and the piston ring 76 and the connecting tube 75 are connected by internal wiring, so that the interference effect of the connecting tube 75 can be avoided when the slide bar 25 moves.
This embodiment: the scheme not only can carry out the reversing operation of manual mode, but also can realize the switching of manual work and electric drive work through connecting electric drive rod 92 and bull stick 10 simultaneously, so can make the scheme possess two kinds of modes of operation, great improvement reversing valve body 21's many compatibility to can keep can be in the continuous control piston ring 76 of in-process of reversing constantly keep can also inflation seal after the switching when electric drive works, even if first piston 26 and second piston 27 cause wearing and tearing, still can keep sealing.
Third embodiment:
referring to fig. 5 and 12, the plugging device further comprises a plugging assembly 8, a triangular plate 93 is fixedly arranged on the outer wall of the electric driving rod 92, the plugging assembly 8 comprises two mounting frames 81 fixedly arranged on the upper surface of the bottom plate 1, air bags 82 are mounted in the two mounting frames 81, pressing plates 83 are slidably connected to the outer walls of the two mounting frames 81, plugging tubes 84 are mounted on the outer walls of the two air bags 82 in a sealing mode, and plugging balls 85 are mounted in the main pipeline 22.
In connection with fig. 5 and 12: whether the user is manually operated or electrically driven, the displacement length of the sliding rod 25 in the reversing valve body 21 is fixed, so that the stroke is a safety stroke a, and secondly, because an operator is beside the reversing valve body 21 in time in the manual operation process, even if the reversing valve body 21 is dangerous, the operator can timely process the reversing valve body 21, but the reversing valve body 21 is unattended in the electrically driven operation process, so that when an emergency situation occurs, such as when the electric cylinder 91 is overtravel, the triangle 93 on the electrically driven rod 92 is compressed once exceeding a safety stroke, the triangle 93 can press the pressing plate 83 corresponding to the stress to squeeze the air bag 82, and when the air bag 82 is compressed, the inflation of the blocking ball 85 is controlled to be realized in the main pipeline 22 through the blocking pipe 84, so that the source of the medium can be thoroughly cut off under the dangerous situation.
The air outlet end of the plugging tube 84 is in sealing connection with the plugging ball 85, and the two pressing plates 83 are in contact with the outer walls of the two air bags 82.
This embodiment: when the manual operation of the first embodiment is switched to the electric driving operation of the second embodiment, the action of the triangular plate 93 is started, so that once the dangerous situation exceeds the safe reversing travel in the electric driving mode, the triangular plate 93 can trigger to work, thereby controlling the plugging balls 85 to complete expansion in the main pipeline 22, thoroughly cutting off the medium source, avoiding the occurrence of danger, and stopping damage in time.
Referring to fig. 1 to 12 in combination, the working principle of the self-tightening sealing reversing valve structure provided by the present invention is as follows:
step S1: the user turns over board 5 anticlockwise on mount pad 4, then can pull gag lever post 11 through inside notch 13 when turning over board 5 in-process of turning over, thereby gag lever post 11 can be in notch 13 slant motion and consequently atress control bull stick 10 drives slide bar 25 and do lateral displacement motion, and slide bar 25 drives first piston 26 and carries out the shutoff to second pipeline 24 when lateral movement, and the medium enters into the switching-over valve body 21 inside from trunk line 22 at this moment, accomplishes the switching-over output through first pipeline 23.
Step S2: when the medium is output from the second pipeline 24, the first cam 62 is stressed by the first rubber capsule 63, the first air pipe 65 is inflated to squeeze the sealing ring 68 to expand and seal the sliding joint of the plugging plate 28 and the sliding rod 25, and when the medium is switched from the second pipeline 24 to the first pipeline 23 for conveying, the first gear 61 is pulled to rotate clockwise to control the first cam 62 to reverse and press the second rubber capsule 64 when the rack 12 moves, so that the second air pipe 66 is inflated to control the sealing ring 68 to expand and seal the sliding joint of the plugging plate 28 and the sliding rod 25.
Step S3: the user rotates the rotating rod 10 by ninety degrees anticlockwise, the rack 12 is far away from the first gear 61 in the ninety degrees rotating process of the rotating rod 10, the rack 12 moves downwards to be in meshed contact with the second gear 71, the ninety degrees of rotation also controls the limiting rod 11 and the notch 13 to be separated, the telescopic rod 15 is pulled in the rotating rod 10 to extend, then the clamping block 17 and the through groove 96 are required to be calibrated, the positioning disc 16 is pushed to be completely in the circular groove 94 after the calibration is completed, and then the clamping block 17 and the through groove 96 are dislocated by rotating the positioning disc 16 to rotate into the annular groove 95, so that the rotating rod 10 is connected with the electric driving rod 92.
Step S4: when the manual state is switched to the electric driving state, the medium enters from the main pipeline 22 and is output from the second pipeline 24, in the state, the second cam 72 is pressed to inflate the piston rings 76 in the first piston 26 and the second piston 27 through the connecting pipe 75, so that the inner wall of the reversing valve body 21 can be sealed, during the switching, a user can start the electric cylinder 91 to drive the electric driving rod 92 to move leftwards, the electric driving rod 92 drives the rotating rod 10 to move so as to seal the first piston 26 against the second pipeline 24, the medium enters from the main pipeline 22 and is output from the first pipeline 23, the reversing switching from the second pipeline 24 to the first pipeline 23 is realized, and when the rotating rod 10 moves, the rack 12 is driven to move so as to control the second gear 71 to rotate anticlockwise so as to control the second cam 72 to reversely press and inflate the connecting pipe 75 to inflate the piston rings 76.
The foregoing description of the preferred embodiments of the present invention should not be construed as limiting the scope of the invention, but rather utilizing equivalent structural changes made in the present invention description and drawings or directly/indirectly applied to other related technical fields are included in the scope of the present invention.
Claims (3)
1. A self-tightening sealed reversing valve structure is characterized by comprising a bottom plate and a valve body assembly;
The mounting box is mounted on the upper surface of the bottom plate and positioned on one side of the valve body assembly through bolts, and the mounting seat is fixedly arranged on the upper surface of the bottom plate and positioned on one side of the mounting box;
The valve body assembly comprises a reversing valve body, a main pipeline is fixedly arranged on the outer wall of the reversing valve body, a first pipeline and a second pipeline are fixedly arranged on the outer wall of the reversing valve body and far away from one side of the main pipeline, a sliding rod is connected inside the reversing valve body in a sliding mode, a first piston and a second piston are fixedly arranged on the outer wall of the sliding rod, a plugging plate is mounted on the side wall of the reversing valve body through bolts, and a sealing ring is embedded in the inner wall of the plugging plate;
The inner part of the mounting seat is rotationally connected with a turning plate, a notch is formed in the turning plate, the outer end of the sliding rod is rotationally connected with a rotating rod, and the outer wall of the rotating rod is fixedly provided with two limiting rods and a rack;
The inner part of the installation box is provided with a first sealing component, the first sealing component comprises a first gear which is rotationally connected to the inner bottom of the installation box, a first cam is fixedly arranged at the top axle center of the first gear, the inner wall of the installation box is respectively provided with a first rubber capsule and a second rubber capsule, the outer wall of the first rubber capsule is provided with a first air pipe in a sealing way, the outer wall of the second rubber capsule is provided with a second air pipe in a sealing way, the outer wall of the plugging plate is fixedly provided with an installation sleeve outside the sliding rod, and the inner part of the installation sleeve is provided with a sealing ring;
The rack is meshed with the first gear, the outer diameters of the two limiting rods are matched with the inner wall of the notch in size, and the two limiting rods are in sliding connection with the notch;
The first cam is mutually stressed and abutted with the first rubber bag, the first air pipe, the second air pipe and the sealing ring are in sealing installation, and the inner wall of the sealing ring is in contact with the joint between the plugging plate and the sliding rod;
an electric drive assembly is arranged above the bottom plate, a limiting plate is connected inside the rotating rod in a sliding manner, a telescopic rod is fixedly arranged on the outer wall of the limiting plate, a positioning disc is fixedly arranged at the front end of the telescopic rod, and a clamping block is fixedly arranged on the outer wall of the positioning disc;
The electric drive assembly comprises an electric cylinder arranged on the upper surface of the bottom plate, an electric drive rod is arranged at the output end of the electric cylinder, a round groove is formed in the front end of the electric drive rod, an annular groove is formed in the inner wall of the round groove, and a through groove is formed in the inner wall of the annular groove;
The second sealing assembly is arranged in the installation box and positioned at one side of the first sealing assembly, the second sealing assembly comprises a second gear which is rotationally connected to the inner wall of the installation box, a second cam is fixedly arranged on the outer wall of the second gear, a third rubber capsule and a fourth rubber capsule are respectively arranged in the installation box, a connecting pipe is arranged on the outer wall of the fourth rubber capsule in a sealing manner, and piston rings are embedded in the first piston and the second piston;
the rack is matched with the second gear, the connecting pipe is in sealing installation with the piston ring, and the third rubber bag is in sealing connection with the fourth rubber bag through a hose;
the round groove is mutually matched with the locating disc, the clamping block is mutually matched with the through groove, and the telescopic rod is in sliding connection with the rotating rod.
2. The self-tightening seal-shaped reversing valve structure according to claim 1, further comprising a plugging assembly, wherein a triangular plate is fixedly arranged on the outer wall of the electric driving rod, the plugging assembly comprises two mounting frames fixedly arranged on the upper surface of the bottom plate, air bags are mounted in the two mounting frames, pressing plates are slidably connected to the outer walls of the two mounting frames, plugging pipes are hermetically mounted on the outer walls of the two air bags, and plugging balls are mounted in the main pipeline.
3. The self-tightening sealing reversing valve structure according to claim 2, wherein the air outlet end of the sealing tube is in sealing connection with the sealing ball, and the two pressing plates are in contact with the outer walls of the two air bags.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411025186.6A CN118548348B (en) | 2024-07-30 | 2024-07-30 | Self-tightening seal-shaped reversing valve structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202411025186.6A CN118548348B (en) | 2024-07-30 | 2024-07-30 | Self-tightening seal-shaped reversing valve structure |
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| CN118548348B true CN118548348B (en) | 2024-09-24 |
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| CN202411025186.6A Active CN118548348B (en) | 2024-07-30 | 2024-07-30 | Self-tightening seal-shaped reversing valve structure |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116123297A (en) * | 2023-02-23 | 2023-05-16 | 德森云阀科技(江苏)有限公司 | Anti-scouring butterfly valve |
| CN116989151A (en) * | 2023-09-27 | 2023-11-03 | 山东菲特自控阀门制造有限公司 | Multi-section controlled pneumatic stop valve |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2643904C1 (en) * | 2015-02-08 | 2018-02-06 | Гиперлуп Текнолоджис, Инк., | Shut off valves and air gates for transport system |
| CN110307392B (en) * | 2019-08-06 | 2024-10-01 | 四川省科能工业设备制造有限公司 | Millstone type material conveying valve with valve rod self-sealing |
| CN215172466U (en) * | 2021-07-07 | 2021-12-14 | 沈阳松晓自动化系统有限公司 | Pneumatic three-way valve structure for liquid filling |
| CN117090977B (en) * | 2023-09-02 | 2024-02-20 | 上海瑞控阀门有限公司 | Axial flow type check valve |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116123297A (en) * | 2023-02-23 | 2023-05-16 | 德森云阀科技(江苏)有限公司 | Anti-scouring butterfly valve |
| CN116989151A (en) * | 2023-09-27 | 2023-11-03 | 山东菲特自控阀门制造有限公司 | Multi-section controlled pneumatic stop valve |
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