CN108612904B - Combined air inlet and outlet valve - Google Patents
Combined air inlet and outlet valve Download PDFInfo
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- CN108612904B CN108612904B CN201810793311.6A CN201810793311A CN108612904B CN 108612904 B CN108612904 B CN 108612904B CN 201810793311 A CN201810793311 A CN 201810793311A CN 108612904 B CN108612904 B CN 108612904B
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- 239000002131 composite material Substances 0.000 claims abstract description 36
- 238000007789 sealing Methods 0.000 claims description 42
- 238000009423 ventilation Methods 0.000 claims description 23
- 230000004888 barrier function Effects 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 21
- 230000009471 action Effects 0.000 description 13
- 230000000903 blocking effect Effects 0.000 description 13
- 238000010586 diagram Methods 0.000 description 12
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 230000005484 gravity Effects 0.000 description 4
- 239000012535 impurity Substances 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001502 supplementing 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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/18—Actuating devices; Operating means; Releasing devices actuated by fluid actuated by a float
- F16K31/20—Actuating devices; Operating means; Releasing devices actuated by fluid actuated by a float actuating a lift valve
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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
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/12—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side weight-loaded
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Self-Closing Valves And Venting Or Aerating Valves (AREA)
Abstract
The invention provides a composite air inlet and outlet valve, and relates to the technical field of valves. A composite intake and exhaust valve comprising: the valve body and the upper valve core and the lower valve core are arranged in the valve body; the valve body is provided with a first vent hole, and the upper valve core can open or close the first vent hole; the upper valve core and the lower valve core are connected in a sliding way, so that the upper valve core and the lower valve core can be buckled or separated from each other; a valve plate is arranged between the upper valve core and the lower valve core, the valve plate is connected with the upper valve core through an elastic piece, and the valve plate is connected with the lower valve core; when the lower valve core is separated from the upper valve core, the valve plate opens the second air vent on the upper valve core, and when the lower valve core is buckled with the upper valve core, the valve plate can close the second air vent. The problems that in the prior art, the air inlet and outlet valve formed by assembling a floating ball type large-amount air outlet valve and a floating barrel type micro-amount air outlet valve is large in size and cannot meet the use requirement of a small-caliber pipeline are solved.
Description
Technical Field
The invention relates to the technical field of valves, in particular to a composite air inlet and outlet valve.
Background
Typically, a certain amount of air is dissolved in the water in the pipe, and during the flowing process of the water, the air is gradually separated from the water and gradually gathered together to form large bubbles, so that an exhaust valve is required to be installed on the pipe to facilitate the exhaust.
The traditional composite air inlet and outlet valve is generally assembled by a floating ball type large-amount air outlet valve and a floating cylinder type micro-amount air outlet valve, has huge volume, and has a nominal size generally larger than DN50, thereby not meeting the use requirement of a small-caliber pipeline.
Based on the above problems, it is important to provide a composite intake and exhaust valve which integrates the functions of a large amount of exhaust valves and a small amount of exhaust valves to reduce the volume.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.
Disclosure of Invention
The invention aims to provide a composite air inlet and outlet valve so as to solve the problems that in the prior art, the air inlet and outlet valve formed by assembling a floating ball type large-amount air outlet valve and a floating cylinder type micro-amount air outlet valve is large in size and cannot meet the use requirement of a small-caliber pipeline.
In order to solve the technical problems, the invention adopts the following technical means:
the invention provides a composite air inlet and outlet valve, which comprises: the valve body and the upper valve core and the lower valve core are arranged in the valve body;
the valve body is provided with a first vent hole, and the upper valve core can open or close the first vent hole;
the upper valve core is in sliding connection with the lower valve core, so that the upper valve core and the lower valve core can be mutually buckled or separated;
a valve plate is arranged between the upper valve core and the lower valve core, the valve plate is connected with the upper valve core through an elastic piece, and the valve plate is connected with the lower valve core; when the lower valve core is separated from the upper valve core, the valve plate opens a second vent hole on the upper valve core, and when the lower valve core is buckled with the upper valve core, the valve plate can close the second vent hole.
As a further technical scheme, a first sealing structure is arranged on the valve body at a position close to the first vent hole, and the upper valve core comprises a second sealing structure;
when the upper valve core is close to the first vent hole, the second sealing structure can be abutted against the first sealing structure for closing the first vent hole.
As a further technical scheme, a first guide post is arranged at the bottom of an inner cavity of the valve body, and a first guide hole is arranged at the top of the inner cavity;
the bottom of the lower valve core is provided with a second guide hole which is in sliding connection with the first guide post, and the top of the upper valve core is provided with a second guide post which is in sliding connection with the first guide hole;
the second ventilation hole is arranged at the axis of the second guide post.
As a further technical scheme, the valve plate comprises a groove structure and a baffle structure;
the middle part of the elastic piece is embedded in the groove structure, two end parts are connected with the connecting lugs on the inner side of the upper valve core, and at least one side of the elastic piece is connected with the baffle structure.
As a further technical scheme, a first clamping structure is arranged on the valve plate, and a second clamping structure matched with the first clamping structure is arranged on the lower valve core;
when the lower valve core is separated from the upper valve core, the second clamping structure drives the first clamping structure to move, and the first clamping structure drives the valve plate to open the second ventilation hole.
As a further technical scheme, a valve plate rubber pad for sealing the second vent hole is arranged at a position, opposite to the second vent hole, on the valve plate.
As a further technical scheme, a sliding rail is arranged on the lower valve core, and a sliding groove matched with the sliding rail is arranged on the upper valve core;
the sliding rail is in sliding connection with the sliding groove, so that the upper valve core and the lower valve core can be mutually buckled or separated.
As a further technical scheme, an upper cover is arranged at the top of the valve body, a sealing gasket is arranged at the bottom of the upper cover, and the sealing gasket is opposite to the first vent hole;
the upper cover can move relative to the valve body, so that the sealing gasket is close to or far away from the first vent hole and is used for closing or opening the first vent hole respectively.
As a further technical scheme, the valve body comprises an upper valve body and a lower valve body;
the upper valve body and the lower valve body are mutually buckled to form a cavity;
the bottom of the cavity is provided with a bracket, and a gap is reserved between the bracket and the lower valve core.
As a further technical scheme, a filter screen is arranged at the bottom port of the valve body.
Compared with the prior art, the composite air inlet and outlet valve provided by the invention has the technical advantages that:
the invention provides a composite air inlet and outlet valve which comprises a valve body, an upper valve core and a lower valve core, wherein the upper valve core and the lower valve core are arranged in an inner cavity of the valve body, a first vent hole is formed in the valve body, and the upper valve core can open or seal the first vent hole; the upper valve core and the lower valve core are connected in a sliding way, so that the upper valve core and the lower valve core can be buckled or separated from each other; further, a valve plate is arranged between the upper valve core and the lower valve core, the valve plate is connected with the upper valve core through an elastic piece, and the valve plate is connected with the lower valve core, so that when the lower valve core is separated from the upper valve core (the lower valve core moves downwards), the lower valve core can pull the valve plate to overcome the elastic action of the elastic piece, so that the valve plate is separated from a second vent hole on the upper valve core, and the second vent hole is opened for exhausting trace gas; under the buckling state of the lower valve core and the upper valve core, the valve plate can seal the second vent hole under the action of the elastic piece, so that gas cannot be discharged from the second vent hole.
The invention provides a working principle of a composite air inlet and outlet valve, which comprises the following steps:
when filling water into the empty pipeline, air in the pipeline is pressurized and enters the valve body, at the moment, under the action of gravity, the upper valve core and the lower valve core are mutually buckled and are positioned at the bottom of the inner cavity of the valve body, so that the first vent hole is in an open state, and pressurized gas entering the inner cavity of the valve body can be rapidly discharged from the first vent hole.
After the air is discharged, the water level in the valve body starts to rise, under the action of buoyancy, the upper valve core and the lower valve core are buckled with each other and move upwards together, gas is discharged from the first vent hole continuously, when the water level reaches a certain degree, the upper valve core can plug the first vent hole, the valve body is in a low-pressure sealing state at the moment, and the exhaust process is finished without water discharge.
Along with the increase of the pressure in the pipeline, the upper valve core and the lower valve core continue to move upwards, so that the sealing between the upper valve core and the first vent hole is more compact, and the valve body is in a high-pressure sealing state at the moment, so that water can be prevented from being discharged after the pressure is increased.
The air separated out from the pipeline is increased and conveyed into the inner cavity of the valve body, so that the air pressure in the inner cavity of the valve body is increased, water in the valve body can be extruded into the pipeline to cause the water level to drop, the lower valve core is completely positioned in the inner cavity of the valve body, the upper valve core and the lower valve core are mutually balanced under the action of pressure, the lower valve core is lowered along the inner cavity of the valve body under the action of gravity, the top of the upper valve core is communicated with the outside through the first vent hole, the bottom of the upper valve core is positioned in the inner cavity of the valve body, the air pressure at the bottom of the upper valve core is higher than the pressure of the outside on the top of the upper valve core, the upper valve core is continuously plugged at the first vent hole, the lower valve core moves downwards relative to the upper valve core, the lower valve core is separated from the upper valve core, the elastic piece is deformed under the driving of the lower valve core, the valve plate is separated from the second vent hole, the second vent hole is opened, and the air in the valve body can be discharged outwards through the second vent hole.
With the outward discharge of the gas in the valve body, the occupied space of the gas is reduced, the water level in the valve body rises, the lower valve core moves upwards and is separated from the pulling action on the valve plate, and the valve plate seals the second ventilation hole again under the action of the elastic piece so as to prevent the water from being discharged outwards.
In addition, when negative pressure is formed in the pipeline, the upper valve core and the lower valve core descend, and at the moment, the upper valve core releases the blocking effect on the first vent hole, so that a large amount of outside air enters the valve body to balance the negative pressure in the pipeline.
The composite air inlet and outlet valve provided by the invention can perform a large amount of air exhaust and air suction from the outside through the first vent hole and can perform a small amount of air exhaust through the second vent hole, so that the problem of huge volume caused by assembling two kinds of valves together in the prior art is solved, and the composite air inlet and outlet valve has the advantages of compact structure, small volume and the like.
And the upper valve core and the lower valve core are mutually matched for use to control the opening of the vent hole, specifically, the upper valve core controls the opening and closing of the first vent hole for realizing the massive discharge or suction of the gas, and the lower valve core controls the opening and closing of the second vent hole for realizing the micro discharge of the gas.
Furthermore, the second vent hole is opened and closed by adopting a lever principle, and the valve plate and the elastic piece are matched for use, so that the accurate control of the opening and closing process of the second vent hole is realized.
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 needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a composite intake and exhaust valve according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of an upper valve core and a lower valve core in a composite intake and exhaust valve according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a valve plate, an elastic member and an upper valve core in a composite intake and exhaust valve according to an embodiment of the present invention;
fig. 4 is a schematic diagram of a lower valve core in the composite intake and exhaust valve provided by the embodiment of the invention;
FIG. 5 is a schematic diagram of an upper valve core in a composite intake and exhaust valve according to an embodiment of the present invention;
fig. 6 is a schematic diagram of a valve plate in a composite intake and exhaust valve according to an embodiment of the present invention;
FIG. 7 is a schematic view of an elastic member in a composite intake and exhaust valve according to an embodiment of the present invention;
FIG. 8 is a schematic diagram of a composite intake and exhaust valve in a large number of exhaust states according to an embodiment of the present invention;
FIG. 9 is a schematic diagram of a composite intake and exhaust valve in a low pressure sealing state according to an embodiment of the present invention;
fig. 10 is a schematic diagram of a composite intake and exhaust valve in a high-pressure sealing state according to an embodiment of the present invention;
FIG. 11 is a schematic diagram of a composite intake and exhaust valve in a micro exhaust state according to an embodiment of the present invention;
fig. 12 is a schematic diagram of a composite intake and exhaust valve in a non-exhaust state according to an embodiment of the present invention;
fig. 13 is a schematic diagram of a composite intake and exhaust valve in an air supplementing state according to an embodiment of the present invention.
Icon:
100-valve body; 110-a first vent; 120-a first sealing structure; 121-a retaining sleeve; 122-sealing rings; 131-a first guide post; 132-a first guide hole; 140-upper cover; 150-sealing gasket; 160-upper valve body; 170-a lower valve body; 180-bracket; 190-a filter screen;
200-valve core; 210-upper valve core; 211-second ventilation holes; 212-a second sealing structure; 213-a second guide post; 214-a chute; 220-lower valve core; 221-a second guide hole; 222-a second clamping structure; 223-slide rail; 230-a valve plate; 231-groove structure; 232-a barrier structure; 233-a first clamping structure; 234-valve plate rubber cushion; 240-elastic member.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. 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.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices 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. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
The invention will now be described in further detail by way of specific examples of embodiments in connection with the accompanying drawings.
The specific structure is shown in fig. 1-13.
The composite intake and exhaust valve provided in this embodiment includes a valve body 100, an upper valve core 210 and a lower valve core 220, where the upper valve core 210 and the lower valve core 220 are disposed in an inner cavity of the valve body 100, and a first vent hole 110 is disposed on the valve body 100, and the upper valve core 210 can open or close the first vent hole 110; the upper valve core 210 and the lower valve core 220 are slidably connected, so that the upper valve core 210 and the lower valve core 220 can be buckled or separated from each other; further, a valve plate 230 is disposed between the upper and lower valve cores 210 and 220, the valve plate 230 is connected with the upper valve core 210 by an elastic member 240, and the valve plate 230 is connected with the lower valve core 220, so that when the lower valve core 220 is separated from the upper valve core 210 (the lower valve core 220 moves downward), the lower valve core 220 can pull the valve plate 230 to overcome the elastic effect of the elastic member 240, so that the valve plate 230 is separated from the second vent hole 211 on the upper valve core 210, and the second vent hole 211 is opened for exhausting trace gas; in the state where the lower valve body 220 is engaged with the upper valve body 210, the valve plate 230 can close the second vent hole 211 by the elastic member 240, so that the gas cannot be discharged from the second vent hole 211.
The working principle of the composite air inlet and outlet valve provided by the embodiment is as follows:
referring to fig. 8, when water is filled into the empty pipe, air in the pipe is pressurized to enter the valve body 100, and at this time, the upper valve core 210 and the lower valve core 220 are fastened to each other under the action of gravity and are located at the bottom of the inner cavity of the valve body 100, so that the first vent hole 110 is in an opened state, and pressurized air entering the inner cavity of the valve body 100 can be rapidly discharged from the first vent hole 110.
Referring to fig. 9, after the air is discharged, the water level in the valve body 100 starts to rise, under the buoyancy, the upper valve core 210 and the lower valve core 220 are fastened to each other and move upward together, while the air continues to be discharged from the first vent hole 110, when the water level reaches a certain level, the upper valve core 210 can seal the first vent hole 110, at this time, the valve body 100 is in a low-pressure sealed state, and the air discharge process is ended without water discharge.
Referring to fig. 10, as the pressure in the pipe continues to increase, the upper and lower valve cores 210 and 220 continue to move upward, making the seal between the upper valve core 210 and the first vent hole 110 more compact, and at this time, the valve body 100 is in a high-pressure sealed state, so that water discharge after pressure increase can be avoided.
Referring to fig. 11, as the air precipitated in the pipe increases and is transferred into the inner cavity of the valve body 100, the air pressure in the inner cavity of the valve body 100 is increased, so that the water in the valve body 100 can be extruded into the pipe, resulting in the water level falling, the pressure applied from the upper and lower sides of the lower valve core 220 is balanced with each other, thereby, under the action of gravity, the lower valve core 220 falls along the inner cavity of the valve body 100, and, because the top of the upper valve core 210 is communicated with the outside through the first vent hole 110, the bottom of the upper valve core 210 is located in the inner cavity of the valve body 100, the air pressure applied from the bottom of the upper valve core 210 is greater than the pressure applied from the outside to the top of the upper valve core 210, so that the upper valve core 210 is continuously plugged at the first vent hole 110, and further, the lower valve core 220 moves downward relative to the upper valve core 210, resulting in the lower valve core 220 being separated from the upper valve core 210, and the valve plate 230 being driven by the lower valve core 220 to deform the elastic member 240, resulting in the separation of the valve plate 230 from the second vent hole 211, resulting in the opening of the second vent hole 211, and the gas in the valve body 100 being discharged outside through the second vent hole 211.
Referring to fig. 12, as the gas in the valve body 100 is discharged outward, the gas occupied space is reduced, the water level in the valve body 100 is raised to move the lower valve core 220 upward, the pulling action on the valve plate 230 is released, and the valve plate 230 again seals the second vent hole 211 under the action of the elastic member 240 to prevent the water from being discharged outward.
Referring to fig. 13, in addition, when negative pressure is formed in the pipe, the upper and lower valve cores 210 and 220 are lowered, and at this time, the upper valve core 210 releases the blocking effect on the first vent hole 110, so that a large amount of external air is introduced into the valve body 100 to balance the negative pressure in the pipe.
The composite air intake and exhaust valve provided in this embodiment can perform a large amount of air exhaust and air suction from the outside through the first air vent 110, and can perform a small amount of air exhaust through the second air vent 211, so that the problem of huge volume caused by assembling two kinds of valves together in the prior art is alleviated, and therefore, the composite air intake and exhaust valve in this embodiment has the advantages of compact structure, small volume and the like.
In addition, the upper valve core 210 and the lower valve core 220 are used in cooperation with each other to control the opening of the vent hole, specifically, the upper valve core 210 controls the opening and closing of the first vent hole 110 for realizing the massive discharge or suction of the gas, and the lower valve core 220 controls the opening and closing of the second vent hole 211 for realizing the micro discharge of the gas.
Further, the second ventilation hole 211 is opened and closed by adopting a lever principle, and the valve plate 230 and the elastic member 240 are matched for use, so that the accurate control of the opening and closing process of the second ventilation hole 211 is realized.
In an alternative solution of this embodiment, a first sealing structure 120 is disposed on the valve body 100 near the first vent hole 110, and the upper valve core 210 includes a second sealing structure 212; when the upper valve core 210 approaches the first ventilation hole 110, the second sealing structure 212 can abut against the first sealing structure 120 to close the first ventilation hole 110.
Specifically, in order to realize the closing or opening of the first vent hole 110, in this embodiment, the first sealing structure 120 is disposed around the first vent hole 110, and correspondingly, the second sealing structure 212 is disposed on the upper portion of the upper valve core 210, and when the upper valve core 210 moves upwards, the second sealing structure 212 and the first sealing structure 120 can be mutually pressed and adhered, so that the first vent hole 110 can be plugged. In this embodiment, the first sealing structure 120 preferably includes a blocking sleeve 121 and a sealing ring 122, wherein the blocking sleeve 121 is embedded at a position inside the first ventilation hole 110, and the sealing ring 122 is mounted through the blocking sleeve 121, thereby forming the first sealing structure 120 inside the first ventilation hole 110; the second sealing structure 212 adopts a diaphragm, and has a certain elasticity, so that when the valve body 100 is in a low pressure state, the diaphragm and the inner conical surface of the blocking sleeve 121 are mutually abutted, and the blocking of the first vent hole 110 can be realized; when the valve body 100 is in a high pressure state, the diaphragm and the inner conical surface of the blocking sleeve 121 are abutted against each other, and meanwhile, the cambered surface at the top of the upper valve core 210 and the sealing ring 122 are abutted against each other, so that the reliability of sealing from zero pressure to the full range of maximum working pressure is ensured through two-stage sealing, and the problem that the diaphragm is easy to damage due to excessive deformation only through the abutting between the diaphragm and the blocking sleeve 121 in the high pressure state is effectively solved.
In an alternative technical solution of this embodiment, a first guide post 131 is disposed at the bottom of the inner cavity of the valve body 100, and a first guide hole 132 is disposed at the top; the bottom of the lower valve core 220 is provided with a second guide hole 221 in sliding connection with the first guide post 131, and the top of the upper valve core 210 is provided with a second guide post 213 in sliding connection with the first guide hole 132; the second ventilation hole 211 is disposed at the axis of the second guide post 213.
It should be noted that, considering that the valve core 200 needs to move up and down in the valve body 100, in order to enable the valve core 200 to move along the preset direction, some guiding structures are provided in this embodiment, specifically, the first guiding post 131 at the bottom of the inner cavity of the valve body 100 is slidably connected with the second guiding hole 221 at the bottom of the lower valve core 220, and the first guiding hole 132 at the top position of the inner cavity of the valve body 100 is slidably connected with the second guiding post 213 at the top of the upper valve core 210, so that when the valve core 200 is acted by a force, the valve core 200 can move along the preset direction to ensure that the valve core 200 can normally close or open the vent hole. Further, the second vent hole 211 is disposed at the axial center of the second guide post 213, so that the inner cavity of the valve core 200 is communicated with the outside through the second vent hole 211.
In an alternative aspect of this embodiment, the valve plate 230 includes a groove structure 231 and a baffle structure 232; the middle part of the elastic member 240 is embedded in the groove structure 231, both end parts are connected with the connecting lugs on the inner side of the upper valve core 210, and at least one side of the elastic member 240 is connected with the baffle structure 232.
In an alternative solution of this embodiment, a first clamping structure 233 is disposed on the valve plate 230, and a second clamping structure 222 matched with the first clamping structure 233 is disposed on the lower valve core 220; when the lower valve core 220 is separated from the upper valve core 210, the second clamping structure 222 drives the first clamping structure 233 to move, and the first clamping structure 233 drives the valve plate 230 to open the second ventilation hole 211.
In an alternative solution of this embodiment, a valve plate rubber pad 234 for closing the second air vent 211 is disposed on the valve plate 230 at a position opposite to the second air vent 211.
Referring to fig. 1, 3, 6 and 7, the valve plate 230 is mounted on the upper valve core 210 through the elastic member 240 and is located in the inner cavity between the upper valve core 210 and the lower valve core 220, specifically, the elastic member 240 adopts a wire spring, the wire spring adopts a concave structure, two ends of the wire spring are respectively mounted in cooperation with two connecting lugs on the inner side of the upper valve core 210, the middle part of the wire spring is embedded in a groove structure 231 on the valve plate 230, and at least one side of the wire spring is clamped with a blocking structure 232 on the side surface of the valve plate 230, thereby, under the action of the wire spring, the valve plate 230 can be abutted against the second vent hole 211 of the upper valve core 210 so as to conveniently block the second vent hole 211, and when the valve plate 230 is subjected to downward force, the valve plate 230 can be separated from the second vent hole 211 so as to realize opening of the second vent hole 211. It should be noted that, the cooperation between the valve plate 230 and the wire spring forms a lever structure, so that the valve plate 230 moves up and down, so as to block or open the second ventilation hole 211.
Further, the lower valve core 220 and the valve plate 230 are connected by a buckle, specifically, a first clamping structure 233 is provided at the bottom of the valve plate 230, a second clamping structure 222 is provided at the top of the lower valve core 220, and the first clamping structure 233 and the second clamping structure 222 are mutually clamped, so that when the lower valve core 220 moves downwards, the valve plate 230 is driven to move downwards, at this time, the acting force of the lower valve core 220 is greater than the acting force of the elastic member 240, and therefore the elastic member 240 deforms to a certain extent, so that the valve plate 230 can be separated from the blocking of the second ventilation hole 211, and exhaust is conducted to the outside through the second ventilation hole 211. In this embodiment, the valve plate rubber pad 234 is an element with a certain elasticity, and is located at a position corresponding to the second vent hole 211, so as to block or open the second vent hole 211.
In an alternative technical solution of the present embodiment, a sliding rail 223 is disposed on the lower valve core 220, and a sliding groove 214 matched with the sliding rail 223 is disposed on the upper valve core 210; the slide rail 223 is slidably connected to the slide groove 214 so that the upper and lower spools 210 and 220 can be fastened to or separated from each other.
In this embodiment, the lower valve core 220 and the upper valve core 210 can be fastened to each other or separated from each other, specifically, the lower valve core 220 and the upper valve core 210 are connected through a sliding rail 223 and a sliding groove 214, so that the upper valve core 210 and the lower valve core 220 are slidably connected, so that the lower valve core 220 drives the valve plate 230 to realize blocking or opening of the second ventilation hole 211.
In an alternative solution of this embodiment, the top of the valve body 100 is provided with an upper cover 140, the bottom of the upper cover 140 is provided with a sealing gasket 150, and the sealing gasket 150 is opposite to the first vent hole 110; the upper cover 140 is movable relative to the valve body 100 such that the gasket 150 is adjacent to or remote from the first vent hole 110 for closing or opening the first vent hole 110, respectively.
Specifically, the upper cover 140 is in threaded connection with the top of the valve body 100, when the first ventilation hole 110 needs to be forcibly closed, only the upper cover 140 needs to be screwed, so that the upper cover 140 moves along with the sealing gasket 150 towards the direction of the first ventilation hole 110, and the sealing gasket 150 adopts an annular structure, so that the periphery of the first ventilation hole 110 can be sealed, and the purpose of blocking the first ventilation hole 110 is further realized. And, the upper cover 140 can also prevent external impurities from entering the inside from the top of the valve body 100, thereby affecting the normal use of the intake and exhaust valves.
In an alternative aspect of this embodiment, the valve body 100 includes an upper valve body 160 and a lower valve body 170; the upper valve body 160 and the lower valve body 170 are buckled with each other to form a cavity; the bottom of the cavity is provided with a bracket 180, and a gap exists between the bracket 180 and the lower valve core 220.
Specifically, the bracket 180 and the valve body 100 are in interference fit, and the first guide post 131 is disposed on the bracket 180, so that the valve core 200 can move in the valve body 100, and the valve body 100 includes the upper valve body 160 and the lower valve body 170, so that the valve core 200 is ensured to be kept as a whole during assembly, and the installation of the valve core 200 is facilitated. In addition, a unique gap is formed between the lower valve core 220 and the bracket 180, and the exhaust port is not closed regardless of the exhaust speed by combining an aerodynamic principle.
In an alternative solution of this embodiment, a filter screen 190 is disposed at a bottom port of the valve body 100, so as to ensure that impurities in a pipeline cannot enter the valve body 100 to affect normal use of the intake and exhaust valves.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.
Claims (7)
1. A composite intake and exhaust valve, comprising: the valve body and the upper valve core and the lower valve core are arranged in the valve body;
the valve body is provided with a first vent hole, and the upper valve core can open or close the first vent hole;
the upper valve core is in sliding connection with the lower valve core, so that the upper valve core and the lower valve core can be mutually buckled or separated;
a valve plate is arranged between the upper valve core and the lower valve core, the valve plate is connected with the upper valve core through an elastic piece, and the valve plate is connected with the lower valve core; when the lower valve core is separated from the upper valve core, the valve plate can open a second vent hole on the upper valve core, and when the lower valve core is buckled with the upper valve core, the valve plate can close the second vent hole;
the lower valve core can drive the valve plate to move, so that the elastic piece is deformed, and the valve plate is separated from the second vent hole, so that the second vent hole is opened; the elastic piece can enable the valve plate to seal the second ventilation hole;
a first sealing structure is arranged at a position, close to the first vent hole, on the valve body, and the upper valve core comprises a second sealing structure;
when the upper valve core is close to the first vent hole, the second sealing structure can be abutted against the first sealing structure and is used for closing the first vent hole;
the bottom of the inner cavity of the valve body is provided with a first guide post, and the top of the inner cavity of the valve body is provided with a first guide hole;
the bottom of the lower valve core is provided with a second guide hole in sliding connection with the first guide post, and the top of the upper valve core is provided with a second guide post in sliding connection with the first guide hole;
the second ventilation hole is arranged at the axis of the second guide post;
the lower valve core is provided with a sliding rail, and the upper valve core is provided with a sliding groove matched with the sliding rail;
the sliding rail is in sliding connection with the sliding groove, so that the upper valve core and the lower valve core can be mutually buckled or separated.
2. The composite intake and exhaust valve of claim 1, wherein the valve plate includes a groove structure and a barrier structure;
the middle part of the elastic piece is embedded in the groove structure, two end parts are connected with the connecting lugs on the inner side of the upper valve core, and at least one side of the elastic piece is connected with the baffle structure.
3. The composite intake and exhaust valve according to claim 2, wherein a first clamping structure is arranged on the valve plate, and a second clamping structure matched with the first clamping structure is arranged on the lower valve core;
when the lower valve core is separated from the upper valve core, the second clamping structure drives the first clamping structure to move, and the first clamping structure drives the valve plate to open the second ventilation hole.
4. The composite intake and exhaust valve according to claim 2, wherein a valve plate rubber pad for closing the second vent hole is provided on the valve plate at a position opposite to the second vent hole.
5. The composite intake and exhaust valve according to claim 1, wherein an upper cover is provided on the top of the valve body, and a gasket is provided on the bottom of the upper cover, the gasket being opposite to the first vent hole;
the upper cover can move relative to the valve body, so that the sealing gasket is close to or far away from the first vent hole and is used for closing or opening the first vent hole.
6. The composite intake and exhaust valve of claim 1, wherein the valve body comprises an upper valve body and a lower valve body;
the upper valve body and the lower valve body are mutually buckled to form a cavity;
the bottom of the cavity is provided with a bracket, and a gap is reserved between the bracket and the lower valve core.
7. The composite intake and exhaust valve of claim 1, wherein a filter screen is disposed at a bottom port of the valve body.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810793311.6A CN108612904B (en) | 2018-07-18 | 2018-07-18 | Combined air inlet and outlet valve |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810793311.6A CN108612904B (en) | 2018-07-18 | 2018-07-18 | Combined air inlet and outlet valve |
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| CN108612904A CN108612904A (en) | 2018-10-02 |
| CN108612904B true CN108612904B (en) | 2024-01-26 |
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| CN201810793311.6A Active CN108612904B (en) | 2018-07-18 | 2018-07-18 | Combined air inlet and outlet valve |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109382277A (en) * | 2018-10-26 | 2019-02-26 | 广东阿博特数码纸业有限公司 | A kind of system for eliminating color spray photo paper bubble |
| CN109112888A (en) * | 2018-10-29 | 2019-01-01 | 广东阿博特数码纸业有限公司 | A method of eliminating color spray photo paper bubble |
| CN110220015B (en) * | 2019-06-28 | 2024-09-13 | 上海舒井汽车系统科技有限公司 | Air pump combination switch with air valve |
| CN114704655B (en) * | 2022-04-22 | 2023-07-25 | 博纳斯威阀门股份有限公司 | Integral combined air valve |
| CN118030859B (en) * | 2024-04-11 | 2024-06-18 | 天津市塘沽第一阀门有限公司 | Combined type air inlet and outlet valve |
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| JP2005121085A (en) * | 2003-10-15 | 2005-05-12 | Tlv Co Ltd | Exhaust valve |
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|---|---|
| CN108612904A (en) | 2018-10-02 |
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