CN115306923A - Constant-pressure exhaust device and exhaust method thereof - Google Patents
Constant-pressure exhaust device and exhaust method thereof Download PDFInfo
- Publication number
- CN115306923A CN115306923A CN202210783404.7A CN202210783404A CN115306923A CN 115306923 A CN115306923 A CN 115306923A CN 202210783404 A CN202210783404 A CN 202210783404A CN 115306923 A CN115306923 A CN 115306923A
- Authority
- CN
- China
- Prior art keywords
- pressure
- exhaust
- valve
- air
- wall
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 7
- 238000007789 sealing Methods 0.000 claims description 63
- 238000007599 discharging Methods 0.000 claims description 5
- 230000000740 bleeding effect Effects 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 6
- 230000002349 favourable effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000013022 venting Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002026 carminative effect Effects 0.000 description 1
Images
Classifications
-
- 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
-
- 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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J12/00—Pressure vessels in general
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Check Valves (AREA)
Abstract
The invention relates to the technical field of constant pressure exhaust, and aims to solve the problem that the pressure in a container in the prior art cannot be quickly exhausted to the atmosphere; the constant pressure exhaust device and the exhaust method thereof have the problems that when the pressure is low, the air cannot be slowly exhausted under the keeping pressure, and when the pressure air is lower than a set value, the air cannot be quickly exhausted; when the air pressure of the container pressure cavity is relatively high, the pressure air pushes the second rubber block to realize quick exhaust, when the air pressure of the container pressure cavity is relatively low, the second rubber block is pushed, the pressure air maintains in the first exhaust passage and slowly exhausts through the through hole until the pressure air is lower than a set value, and the first spring pushes the first rubber block of the valve core open to realize quick exhaust of the pressure air. The invention has the advantages that when the pressure in the exhaust valve is high, the exhaust is rapidly carried out through the first valve port, and after the pressure of the exhaust valve is lower than a set value, the residual pressure air is rapidly discharged through the second exhaust passage under the jacking action of the first elastic element.
Description
Technical Field
The invention relates to the technical field of constant-pressure exhaust, in particular to a constant-pressure exhaust device and an exhaust method thereof.
Background
In real life, the pressure in the container is not completely the same, sometimes the pressure is high, sometimes the pressure is low; when the pressure is required to be high, the gas is quickly discharged to the atmosphere; when the pressure is low, the air is slowly exhausted after being kept at a certain pressure, and the air is quickly and completely exhausted after being lower than a set value.
Disclosure of Invention
The invention aims to provide a constant-pressure exhaust device and an exhaust method thereof, which aim to solve the problem that the pressure in a container in the prior art is high and cannot be quickly exhausted to the atmosphere; when the pressure is low, the air can not be slowly discharged after being kept at a certain pressure, and the air can not be quickly and completely discharged after the pressure is lower than a set value.
The embodiment of the invention is realized by the following steps:
the embodiment of the invention provides a constant-pressure exhaust device, which comprises an exhaust valve and an exhaust component;
the exhaust valve is provided with an outer shell, a first sealing pressure cavity and a second sealing pressure cavity are arranged in the outer shell, an inward convex limiting convex ring is arranged at the joint of the first sealing pressure cavity and the second sealing pressure cavity, a valve core is arranged in the outer shell and slides along the axial direction of the outer shell, a large column section of the valve core is positioned in the first sealing pressure cavity, the outer wall of the large column section of the valve core is in sealed sliding fit with the inner wall of the first sealing pressure cavity, and the outer wall of a small column section of the valve core is in sealed sliding fit with the inner wall of the limiting convex ring;
a first exhaust hole and a second exhaust hole are respectively formed at two ends of the outer shell, a container pressure cavity is formed between the outer end of the large column section of the valve core and the inner wall of the first sealing pressure cavity, the first exhaust hole is communicated with the container pressure cavity, a first exhaust passage communicated with the container pressure cavity is connected to the first exhaust hole, and the other end of the first exhaust passage is respectively communicated with the second exhaust hole and the air release component;
the inner side of the second exhaust hole is connected with a first valve port, the peripheral surface of the first valve port is sleeved with a first elastic element, one end of the first elastic element elastically abuts against the inner wall of the outer shell, the other end of the first elastic element elastically abuts against the other end of the valve core, and the inner side end of the first valve port is attached to the other end of the valve core;
the air release member has a bottom frame, a second valve port is opened on one side of the bottom frame, a check valve is arranged in the second valve port, the check valve is attached to the inner side of the second valve port, a second elastic member is arranged between the check valve and the inner wall of the other side of the bottom frame, one end of the second elastic member elastically abuts against the check valve, the other end of the second elastic member elastically abuts against the inner wall of the other side of the bottom frame, the check valve is opened with a through hole, and the other end of the first exhaust passage is respectively connected with the second exhaust hole and the second valve port of the air release member in a sealing manner;
and a second exhaust passage is connected to the outer wall of the outer shell, one end of the second exhaust passage is communicated with the second sealing pressure cavity, and the other end of the second exhaust passage is communicated with the inside of the bottom frame.
The constant pressure exhaust apparatus that this embodiment discloses is through aforementioned setting for when constant pressure exhaust apparatus can realize the pressure height in the above-mentioned discharge valve, discharge fast earlier, discharge valve discharges certain pressure after, and exhaust rate will slow down, and after discharge valve pressure is less than the value of settlement, under the jacking effect of above-mentioned first elastic component, remaining pressure air is quick complete discharge again.
Optionally: the big column section of above-mentioned case upwards has seted up first annular inner groovy, and the inslot of above-mentioned first annular inner groovy is inlayed and is had first sealing washer, and the tank bottom at above-mentioned first annular inner groovy is supported in the inner wall of above-mentioned first sealing washer, and the outer wall slidable of above-mentioned first sealing washer supports and pushes up on the inner wall of above-mentioned first sealed pressure chamber.
So set up, above-mentioned first sealing washer makes the big post section of above-mentioned case more sealed with the inner wall connection of above-mentioned first sealed pressure chamber, is favorable to improving the leakproofness in above-mentioned container pressure chamber, avoids the unexpected loss of gas in above-mentioned container pressure chamber.
Optionally: the small column section of the valve core is radially provided with a second annular inner groove, a second sealing ring is embedded in the groove of the first annular inner groove, the inner wall of the second sealing ring abuts against the bottom of the second annular inner groove, and the outer wall of the second sealing ring can slidably abut against the inner wall of the limiting convex ring.
So set up, above-mentioned second sealing washer makes the pillar section outer wall of above-mentioned case more sealed with the connection of above-mentioned restriction bulge loop inner wall, simultaneously, the effectual gas inflow of having avoided in above-mentioned first sealed pressure chamber of above-mentioned second seals the pressure chamber.
Optionally: the radial direction of the outer shell is also provided with an atmospheric hole which is communicated with the first sealing pressure cavity, and the atmospheric hole is positioned between the first annular inner groove and the second annular inner groove.
So set up, through setting up above-mentioned big gas pocket, the flexible motion of above-mentioned case of being convenient for has avoided having the air and causing the big column section of above-mentioned case to stretch out and draw back in above-mentioned first sealed pressure intracavity that can not be smooth because of the case outer wall, and then influences the exhaust.
Optionally: the end part of the small column section of the valve core is embedded with a first rubber block which is attached to the first valve port in a sealing way.
So set up, above-mentioned first rubber block can strengthen the connection leakproofness of the little column segment tip of above-mentioned case and above-mentioned first valve port, makes its sealed effect better.
Optionally: and a second rubber block is arranged between the check valve and the second valve port, one side of the second rubber block is hermetically attached to the second valve port, the other end of the second rubber block is attached to the check valve, and the through hole in the check valve penetrates through the second rubber block.
So set up, above-mentioned second rubber block can strengthen above-mentioned check valve and the leakproofness of being connected of above-mentioned second valve mouth, makes its sealed effect better.
Optionally: the bottom frame of the air release member is communicated with the atmosphere.
This arrangement facilitates concentrated discharge of the pressurized air discharged from the first exhaust passage and the second exhaust passage to the atmosphere through the bottom frame.
Optionally: the first elastic member and the second elastic member are both springs.
So set up, the spring has good elastic force, and above-mentioned first elastic component and above-mentioned second elastic component are the spring, help the above-mentioned case of jacking and the above-mentioned check valve of jacking respectively, are favorable to the cooperation to be carminative.
Optionally: the sectional area of the large column section of the valve core is larger than that of the small column section of the valve core.
With the arrangement, when the pressure air at the ends of the large column section and the small column section of the valve core is the same during air exhaust, the pressure applied to the end of the large column section of the valve core is greater than the pressure applied to the end of the small column section of the valve core.
In one implementation of this embodiment: when the pressure of the container pressure cavity in the first sealed pressure cavity is higher, the pressure air in the container pressure cavity is discharged into the first exhaust passage, the pressure air in the first exhaust passage pushes the second rubber block, so that the second rubber block pushes the second elastic piece on the check valve to compress, and at the moment, the second rubber block is away from the second valve port, and the pressure air is quickly discharged into a bottom frame connected with the atmosphere;
when the pressure of the container pressure chamber in the first sealing pressure chamber is relatively low, the pressure air in the container pressure chamber is discharged into the first exhaust passage, because the pressure air in the first exhaust passage is relatively low, the pressure air cannot effectively compress the second elastic member, so that the second rubber block of the check valve leaves the second valve port, when the pressure applied to the end of the large column section of the valve core is greater than the sum of the pressure applied to the end of the small column section of the valve core and the jacking force of the first elastic member, the first rubber block is not separated from the first valve port, the pressure air in the first exhaust passage cannot be discharged through the end of the small column section of the valve core, at the moment, the pressure air can be kept in the first exhaust passage, the pressure air in the first exhaust passage is slowly discharged into the bottom frame communicated with the atmosphere through the through holes in the check valve, when the pressure applied to the end of the large column section of the valve core is less than the sum of the pressure applied to the end of the small column section of the valve core and the jacking force of the first elastic member, the first rubber block and the first exhaust passage is opened until the first exhaust air in the first exhaust passage, and the second exhaust passage is completely communicated with the first exhaust passage.
In summary, the constant pressure exhaust apparatus and the exhaust method thereof disclosed by the present invention have the beneficial effects that when the pressure inside the exhaust valve is high, the exhaust valve is quickly exhausted, after the exhaust valve exhausts a certain pressure, the exhaust rate is slowed, and when the pressure of the exhaust valve is lower than a set value, under the jacking action of the first elastic member, the residual pressure air is quickly and completely exhausted.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic structural diagram of a constant pressure exhaust apparatus according to an embodiment of the present invention;
FIG. 2 is a schematic diagram illustrating venting of a vessel when the pressure chamber of the vessel is at a relatively high pressure in an embodiment of the present invention;
fig. 3 shows a venting schematic for a relatively low pressure in the pressure chamber of the container according to an exemplary embodiment of the present invention.
Icon: 1-exhaust valve, 2-air release component, 3-outer shell, 4-first sealing pressure cavity, 5-second sealing pressure cavity, 6-limiting convex ring, 7-valve core, 8-first exhaust hole, 9-second exhaust hole, 10-container pressure cavity, 11-first exhaust passage, 12-first valve port, 13-first elastic piece, 14-bottom frame, 15-second valve port, 16-check valve, 17-second elastic piece, 18-through hole, 19-second exhaust passage, 20-first annular inner groove, 21-first sealing ring, 22-second annular inner groove, 23-second sealing ring, 24-air hole, 25-first rubber block and 26-second rubber block.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Examples
Referring to fig. 1, 2 and 3, the present embodiment proposes a constant pressure exhaust apparatus, including an exhaust valve 1 and an air bleeding member 2;
the exhaust valve 1 is provided with an outer shell 3, a first sealing pressure cavity 4 and a second sealing pressure cavity 5 are arranged inside the outer shell 3, an inward convex limiting convex ring 6 is arranged at the joint of the first sealing pressure cavity 4 and the second sealing pressure cavity 5, a valve core 7 is arranged inside the outer shell 3, the valve core 7 slides along the axial direction of the outer shell 3, a large column section of the valve core 7 is positioned inside the first sealing pressure cavity 4, the outer wall of the large column section of the valve core 7 is in sealed sliding fit with the inner wall of the first sealing pressure cavity 4, and the outer wall of a small column section of the valve core 7 is in sealed sliding fit with the inner wall of the limiting convex ring 6;
a first exhaust hole 8 and a second exhaust hole 9 are respectively formed in two ends of the outer shell 3, a container pressure cavity 10 is formed between the outer end of the large column section of the valve core 7 and the inner wall of the first sealing pressure cavity 4, the first exhaust hole 8 is communicated with the container pressure cavity 10, a first exhaust passage 11 communicated with the container pressure cavity 10 is connected to the first exhaust hole 8, and the other end of the first exhaust passage 11 is communicated with the second exhaust hole 9 and the deflation component 2 respectively;
the inner side of the second exhaust hole 9 is connected with a first valve port 12, the outer peripheral surface of the first valve port 12 is sleeved with a first elastic element 13, one end of the first elastic element 13 elastically abuts against the inner wall of the outer shell 3, the other end of the first elastic element 13 elastically abuts against the other end of the valve core 7, and the inner side end of the first valve port 12 is attached to the other end of the valve core 7;
the air discharging component 2 is provided with a bottom frame 14, one side of the bottom frame 14 is provided with a second valve opening 15, a check valve 16 is arranged in the second valve opening 15, the check valve 16 is attached to the inner side of the second valve opening 15, a second elastic part 17 is arranged between the check valve 16 and the inner wall of the other side of the bottom frame 14, one end of the second elastic part 17 elastically abuts against the check valve 16, the other end of the second elastic part 17 elastically abuts against the inner wall of the other side of the bottom frame 14, the check valve 16 is provided with a through hole 18, and the other end of the first air discharging passage 11 is respectively connected with the second air discharging hole 9 and the second valve opening 15 of the air discharging component 2 in a sealing manner;
a second exhaust passage 19 is connected to an outer wall of the outer casing 3, one end of the second exhaust passage 19 communicates with the second sealing pressure chamber 5, and the other end of the second exhaust passage 19 communicates with the inside of the bottom frame 14.
The constant pressure exhaust apparatus that this embodiment discloses is through aforementioned setting for when constant pressure exhaust apparatus can realize the pressure height in the discharge valve 1, discharge fast earlier, discharge valve 1 discharges certain pressure after, the exhaust rate will slow down, after discharge valve 1 pressure is less than the value of settlement, under the jacking effect of first elastic component 13, remaining pressure air is quick complete discharge again.
Referring to fig. 1, fig. 2 and fig. 3, first annular inner groove 20 has radially been seted up to the big post section of case 7, the inslot of first annular inner groove 20 is embedded to have first sealing washer 21, the bottom of the tank of first annular inner groove 20 is supported in the inner wall of first sealing washer 21, the outer wall slidable of first sealing washer 21 supports and pushes up on the inner wall of first sealed pressure chamber 4, first sealing washer 21 makes the big post section of case 7 more sealed with the wall connection of first sealed pressure chamber 4, be favorable to improving the leakproofness in the container pressure chamber 10, avoid the unexpected loss of gas in the container pressure chamber 10.
Second annular inner groove 22 has radially been seted up to the little post section of case 7, the inslot of first annular inner groove 20 is inlayed and is had second sealing washer 23, the inner wall of second sealing washer 23 supports the tank bottom at second annular inner groove 22, the outer wall slidable of second sealing washer 23 supports and supports on the inner wall of restriction bulge loop 6, second sealing washer 23 makes little post section outer wall of case 7 more sealed with the connection of restriction bulge loop 6 inner wall, and simultaneously, the effectual gas that has avoided in the first sealed pressure chamber 4 flows into the sealed pressure chamber 5 of second.
Referring to fig. 1, 2 and 3, a first rubber block 25 is embedded at the end of the small column section of the valve core 7, the first rubber block 25 is attached to the first valve port 12 in a sealing manner, and the first rubber block 25 can enhance the connection sealing property between the end of the small column section of the valve core 7 and the first valve port 12, so that the sealing effect is better.
Be equipped with second rubber block 26 between check valve 16 and the second valve mouth 15, the sealed laminating in second valve mouth 15 of one side of second rubber block 26, the other end laminating in check valve 16 of second rubber block 26, through-hole 18 on the check valve 16 runs through second rubber block 26, and second rubber block 26 can strengthen the leakproofness of being connected of check valve 16 and second valve mouth 15, makes its sealed effect better.
The bottom frame 14 of the air bleeding member 2 is communicated with the atmosphere, which facilitates concentrated discharge of the pressurized air discharged in the first exhaust passage 11 and the second exhaust passage 19 to the atmosphere through the bottom frame 14.
First elastic component 13 and second elastic component 17 are the spring, and the spring has good elastic force, and first elastic component 13 and second elastic component 17 are the spring, help jacking case 7 and jacking check valve 16 respectively, are favorable to the cooperation to exhaust.
The sectional area of the large column section of the valve core 7 is larger than that of the small column section of the valve core 7, and during air exhaust, when the size of the pressure air at the end parts of the large column section and the small column section of the valve core 7 is the same, the pressure applied to the end part of the large column section of the valve core 7 is larger than that applied to the end part of the small column section of the valve core 7.
Referring to fig. 1, 2 and 3, in one embodiment of the present embodiment: when the pressure of the container pressure cavity 10 in the first sealed pressure cavity 4 is higher, the pressure air in the container pressure cavity 10 is discharged into the first exhaust passage 11, the pressure air in the first exhaust passage 11 pushes the second rubber block 26, so that the second rubber block 26 pushes the second elastic member 17 on the check valve 16 to be compressed, and at the moment, the second rubber block 26 is away from the second valve opening 15 for a certain distance, and the pressure air is rapidly discharged into the bottom frame 14 connected with the atmosphere;
when the air pressure of the container pressure chamber 10 in the first sealed pressure chamber 4 is lower, the pressure air in the container pressure chamber 10 is discharged into the first exhaust passage 11, because the pressure air in the first exhaust passage 11 is lower, the pressure air can not effectively compress the second elastic member 17, so that the second rubber block 26 of the check valve 16 leaves the second valve port 15, when the pressure applied to the end of the large column section of the valve core 7 is greater than the sum of the pressure applied to the end of the small column section of the valve core 7 and the jacking force of the first elastic member 13, the first rubber block 25 can not be separated from the first valve port 12, the pressure air in the first exhaust passage 11 can not be discharged through the end of the small column section of the valve core 7, at this time, the pressure air can be kept in the first exhaust passage 11, the pressure air in the first exhaust passage 11 is slowly discharged into the bottom frame 14 communicated with the atmosphere through the through hole 18 on the check valve 16, when the pressure applied to the end of the large column section of the valve core 7 is smaller than the sum of the pressure applied to the end of the small column section of the valve core 7 and the jacking force of the first elastic part 13, the first rubber block 25 is separated from the first valve port 12 and opened, the pressure air in the first exhaust passage 11 is discharged into the second sealed pressure chamber 5 through the space between the first rubber block 25 and the first valve port 12, and the pressure air in the second sealed pressure chamber 5 is discharged into the bottom frame 14 communicated with the atmosphere through the second exhaust passage 19 until the pressure air is completely discharged.
In the present embodiment, the second resilient member 17 behind the check valve 16 is designed such that the pressure air in the first exhaust passage 11 is greater than the pressure air at which the first port 12 of the exhaust valve 1 is closed.
In this embodiment, the pressure of the pressure chamber 10 of the container is relatively high, and when the air is released, the pressure air compresses the second elastic member 17 behind the check valve 16, so that the second rubber block 26 in front of the check valve 16 is away from the second valve opening 15, and the pressure air is rapidly discharged to the atmosphere through the bottom frame 14; when the pressure of the container pressure chamber 10 is low and is discharged to the atmosphere, the pressure air cannot effectively compress the second elastic member 17 behind the check valve 16, so that the check valve 16 is separated from the second valve port 15, the second rubber block 26 of the check valve 16 is sealed with the second valve port 15, the pressure air cannot be quickly discharged to the atmosphere through the check valve 16, and the first exhaust passage 11 can be kept at a certain pressure.
In this embodiment, since the right action area of the valve element 7 of the exhaust valve 1 is larger than the left action area, when the pressure air on the left and right sides is the same during exhaust, the pressure on the right side of the valve element 7 is larger than the pressure on the left side;
when the pressure on the right side of the exhaust valve 1 is greater than the sum of the pressure on the left side of the exhaust valve 1 and the force of the first elastic element 13 in the right direction, the first rubber block 25 is not separated from the first valve port 12, and the pressure air in the container pressure chamber 10 cannot be exhausted through the exhaust valve 1.
In this embodiment, the pressure air in the first exhaust passage 11 is slowly exhausted to the atmosphere through the through hole 18 of the check valve 16, when the pressure applied to the right side of the exhaust valve 1 is less than the sum of the pressure applied to the left side of the exhaust valve 1 and the force applied to the right side of the first elastic member 13, the first rubber block 25 is separated from the first valve port 12 and is opened, and the pressure air in the container pressure chamber 10 is rapidly exhausted through the exhaust valve 1 until all the pressure air is exhausted.
In this embodiment, the value of the acting force of the first elastic element 13 is designed according to the size of the acting area on both sides of the valve element 7 of the exhaust valve 1, so that when the pressure air in the first exhaust passage 11 is smaller than a set pressure value, the first valve port 12 of the exhaust valve 1 is opened, and the pressure air in the first exhaust passage 11 can be quickly exhausted through the first valve port 12 of the exhaust valve 1 until all the pressure air is exhausted.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A constant pressure exhaust device is characterized in that:
comprises an exhaust valve and an air discharging component;
the exhaust valve is provided with an outer shell, a first sealing pressure cavity and a second sealing pressure cavity are arranged inside the outer shell, an inward convex limiting convex ring is arranged at the joint of the first sealing pressure cavity and the second sealing pressure cavity, a valve core is arranged inside the outer shell, the valve core slides along the axial direction of the outer shell, a large column section of the valve core is positioned in the first sealing pressure cavity, the outer wall of the large column section of the valve core is in sealed sliding fit with the inner wall of the first sealing pressure cavity, and the outer wall of a small column section of the valve core is in sealed sliding fit with the inner wall of the limiting convex ring;
a first exhaust hole and a second exhaust hole are respectively formed in two ends of the outer shell, a container pressure cavity is formed between the outer end of the large column section of the valve core and the inner wall of the first sealing pressure cavity, the first exhaust hole is communicated with the container pressure cavity, a first exhaust passage communicated with the container pressure cavity is connected to the first exhaust hole, and the other end of the first exhaust passage is communicated with the second exhaust hole and the air release component respectively;
the inner side of the second exhaust hole is connected with a first valve port, a first elastic piece is sleeved on the peripheral surface of the first valve port, one end of the first elastic piece elastically abuts against the inner wall of the outer shell, the other end of the first elastic piece elastically abuts against the other end of the valve core, and the inner side end of the first valve port is attached to the other end of the valve core;
the deflation component is provided with a bottom frame, one side of the bottom frame is provided with a second valve port, a check valve is arranged in the second valve port and is attached to the inner side of the second valve port, a second elastic part is arranged between the check valve and the inner wall of the other side of the bottom frame, one end of the second elastic part elastically abuts against the check valve, the other end of the second elastic part elastically abuts against the inner wall of the other side of the bottom frame, the check valve is provided with a through hole, and the other end of the first exhaust passage is respectively connected with the second exhaust hole and the second valve port of the deflation component in a sealing manner;
and a second exhaust passage is connected to the outer wall of the outer shell, one end of the second exhaust passage is communicated with the second sealing pressure cavity, and the other end of the second exhaust passage is communicated with the inside of the base frame.
2. A constant pressure exhaust apparatus according to claim 1, wherein:
the large column section of the valve core is radially provided with a first annular inner groove, a first sealing ring is embedded in the groove of the first annular inner groove, the inner wall of the first sealing ring abuts against the bottom of the first annular inner groove, and the outer wall of the first sealing ring slidably abuts against the inner wall of the first sealing pressure cavity.
3. A constant pressure exhaust apparatus according to claim 2, wherein:
the small column section of the valve core is radially provided with a second annular inner groove, a second sealing ring is embedded in the groove of the first annular inner groove, the inner wall of the second sealing ring abuts against the bottom of the second annular inner groove, and the outer wall of the second sealing ring slidably abuts against the inner wall of the limiting convex ring.
4. A constant pressure exhaust apparatus according to claim 3, wherein:
the radial direction of the outer shell is also provided with an atmospheric hole, the atmospheric hole is communicated with the first sealing pressure cavity, and the atmospheric hole is positioned between the first annular inner groove and the second annular inner groove.
5. A constant pressure exhaust apparatus according to claim 1, wherein:
a first rubber block is embedded at the end part of the small column section of the valve core and is attached to the first valve port in a sealing mode.
6. A constant pressure exhaust apparatus according to claim 1, wherein:
a second rubber block is arranged between the check valve and the second valve port, one side of the second rubber block is hermetically attached to the second valve port, the other end of the second rubber block is attached to the check valve, and a through hole in the check valve penetrates through the second rubber block.
7. A constant pressure exhaust apparatus according to claim 1, wherein:
the bottom frame in the air bleeding member is communicated with the atmosphere.
8. A constant pressure exhaust apparatus according to claim 1, wherein:
the first elastic piece and the second elastic piece are both springs.
9. A constant pressure exhaust apparatus according to claim 1, wherein:
the sectional area of the large column section of the valve core is larger than that of the small column section of the valve core.
10. An exhaust method using a constant-pressure exhaust apparatus according to any one of claims 1 to 9, characterized in that:
when the pressure of a container pressure cavity in the first sealed pressure cavity is higher, the pressure air in the container pressure cavity is discharged into the first exhaust passage, the pressure air in the first exhaust passage pushes the second rubber block, so that the second rubber block pushes the second elastic piece on the check valve to be compressed, at the moment, the second rubber block is away from the second valve opening for a certain distance, and the pressure air is quickly discharged into a bottom frame connected with the atmosphere;
when the air pressure of the container pressure cavity in the first sealing pressure cavity is lower, the pressure air in the container pressure cavity is discharged into the first exhaust passage, because the pressure air in the first exhaust passage is lower, the pressure air can not effectively compress the second elastic part, so that the second rubber block of the check valve leaves the second valve port, when the pressure applied to the end part of the large column section of the valve core is greater than the sum of the pressure applied to the end part of the small column section of the valve core and the jacking force of the first elastic part, the first rubber block can not be separated from the first valve port, and the pressure air in the first exhaust passage can not be discharged through the end part of the small column section of the valve core, at the moment, the pressure air in the first exhaust passage can be kept in the first exhaust passage, the pressure air in the first exhaust passage is slowly exhausted into the bottom frame communicated with the atmosphere through the through hole in the check valve, when the pressure applied to the end of the large column section of the valve core is smaller than the sum of the pressure applied to the end of the small column section of the valve core and the jacking force of the first elastic piece, the first rubber block is separated from the first valve port and is opened, the pressure air in the first exhaust passage is exhausted into the second sealed pressure cavity through the space between the first rubber block and the first valve port, and the pressure air in the second sealed pressure cavity is exhausted into the bottom frame communicated with the atmosphere through the second exhaust passage until the pressure air is completely exhausted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210783404.7A CN115306923B (en) | 2022-07-05 | 2022-07-05 | Constant-pressure exhaust device and exhaust method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210783404.7A CN115306923B (en) | 2022-07-05 | 2022-07-05 | Constant-pressure exhaust device and exhaust method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115306923A true CN115306923A (en) | 2022-11-08 |
| CN115306923B CN115306923B (en) | 2024-08-23 |
Family
ID=83856840
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210783404.7A Active CN115306923B (en) | 2022-07-05 | 2022-07-05 | Constant-pressure exhaust device and exhaust method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115306923B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4026609A (en) * | 1976-08-26 | 1977-05-31 | Westinghouse Air Brake Company | Pressure reduction and pressure reduction rate sensitive emergency vent valve |
| EP0149493A2 (en) * | 1984-01-17 | 1985-07-24 | Knorr-Bremse Ag | Operator's brake valve for railway vehicles |
| CN2721884Y (en) * | 2004-02-05 | 2005-08-31 | 瞿政勇 | Automatic throttle adjuster of diesel engine |
| CN106696939A (en) * | 2016-12-27 | 2017-05-24 | 张子豪 | Automatic gas cut-off brake device of automobile hand brake and foot braking system |
| CN110925170A (en) * | 2019-12-31 | 2020-03-27 | 广东标顶技术股份有限公司 | Novel double-speed exhaust valve and intake valve with unloading function |
| CN111692389A (en) * | 2020-07-17 | 2020-09-22 | 眉山中车制动科技股份有限公司 | Exhaust rate changing device |
-
2022
- 2022-07-05 CN CN202210783404.7A patent/CN115306923B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4026609A (en) * | 1976-08-26 | 1977-05-31 | Westinghouse Air Brake Company | Pressure reduction and pressure reduction rate sensitive emergency vent valve |
| EP0149493A2 (en) * | 1984-01-17 | 1985-07-24 | Knorr-Bremse Ag | Operator's brake valve for railway vehicles |
| CN2721884Y (en) * | 2004-02-05 | 2005-08-31 | 瞿政勇 | Automatic throttle adjuster of diesel engine |
| CN106696939A (en) * | 2016-12-27 | 2017-05-24 | 张子豪 | Automatic gas cut-off brake device of automobile hand brake and foot braking system |
| CN110925170A (en) * | 2019-12-31 | 2020-03-27 | 广东标顶技术股份有限公司 | Novel double-speed exhaust valve and intake valve with unloading function |
| CN111692389A (en) * | 2020-07-17 | 2020-09-22 | 眉山中车制动科技股份有限公司 | Exhaust rate changing device |
Non-Patent Citations (1)
| Title |
|---|
| 王信化: "生产自动化设备的高速气压传动和缓冲器", 液压气动与密封, no. 02, 30 June 1996 (1996-06-30), pages 44 - 47 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115306923B (en) | 2024-08-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2278239A1 (en) | Linear peristaltic pump | |
| CN108563105A (en) | Button and watch with the button | |
| US3162213A (en) | Surge attenuating devices | |
| CN209130095U (en) | A kind of two-stage spring bumper | |
| CN106641347A (en) | Pressure-relief one-way valve | |
| CN115306923A (en) | Constant-pressure exhaust device and exhaust method thereof | |
| CN103693281B (en) | A kind of emulsion vacuum pump device | |
| CN208106699U (en) | A kind of sound absorbing air pump with pressure relief | |
| CN206220913U (en) | Packer | |
| CN108663163A (en) | Plugging structure and dialyzer detection device | |
| CN109630482B (en) | Spring piston type pressure accumulator with one-way valve | |
| CN218356394U (en) | Support tube assembly for sleeve gastrectomy | |
| CN218118729U (en) | One-way valve for pneumatic supercharger | |
| US5225631A (en) | Liquid-pressurized radio frequency interference gasket | |
| CN2589005Y (en) | Bottle head valve | |
| CN114857383A (en) | External pushing pressure-aid sealing ring | |
| CN212960031U (en) | Decompression valve return mechanism | |
| CN208534727U (en) | Low noise pressure limiting structure and air pump and solenoid valve block with the structure | |
| CN213575760U (en) | Overpressure protection device for vacuum gauge | |
| CN209383745U (en) | A kind of fermentor compensation device with protector | |
| CN113236830A (en) | Gas explosion opening type one-way valve and gas circuit system | |
| CN101806443A (en) | Sealing element | |
| CN213367860U (en) | Anti-collision glass cover plate | |
| CN205574224U (en) | Marine mirror cabinet of anticollision | |
| CN214743561U (en) | Plug-in mounting piston type one-way valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |