CN112324919A - Composite sealing gas valve - Google Patents
Composite sealing gas valve Download PDFInfo
- Publication number
- CN112324919A CN112324919A CN202011355419.0A CN202011355419A CN112324919A CN 112324919 A CN112324919 A CN 112324919A CN 202011355419 A CN202011355419 A CN 202011355419A CN 112324919 A CN112324919 A CN 112324919A
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- Prior art keywords
- valve
- valve core
- cavity
- seat
- gas
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- 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.)
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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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
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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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
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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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—Valve members
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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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—Valve members
- F16K1/38—Valve members of conical shape
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Safety Valves (AREA)
Abstract
A composite sealing gas valve comprises a valve body, a valve core assembly, a pressure spring and a valve cover, wherein the valve body comprises a valve core cavity, a valve core seat arranged at the closed end of the valve core cavity and a gas guide hole arranged on the valve core seat; the valve core assembly comprises a valve core and a valve core fixing seat; the valve cover is screwed with the valve core cavity, and the pressure spring is matched with the valve core assembly and the valve cover; because of the sealed relative frictional force that reduces area of contact and reduce valve body, case subassembly of contact of ring line to reduce the relative rising range of setting for the gas pressure value of case subassembly, compress the bellied bounce of annular when protruding and valve body plane seal through compression annular and also further reduce the rising range of gas valve setting for the gas pressure value, the rising range of setting for the gas pressure value is less, the gas valve set for the gas pressure value just more accurate, carbonated beverage machine just is safer more.
Description
Technical Field
The invention relates to a gas valve for a carbonated beverage machine.
Background
In the prior art, 2 types of common gas valves are used in carbonated beverage machines, namely a conical surface radial seal (a conventional gas valve a) and a planar seal (a conventional gas valve B). The existing gas valve A is good in radial sealing performance of a conical surface, but a conical valve core is pressed by spring force for a long time, the valve core is wedged into a gas guide hole, the contact area of the valve core and the gas guide hole is increased, so that the friction force (10-30N) between the valve core and the gas guide hole is increased, the working pressure value of the gas valve after long-time storage is greatly increased compared with the original set gas pressure value, the greatly increased pressure value is too large in difference with the original set value and the difference value is inconsistent, and the pressure value of the gas valve is difficult to set accurately. The existing gas valve B is plane-sealed and is influenced by a manufacturing process, and the plane of a valve body and the plane of a valve core are difficult to ensure absolute smoothness and smoothness, so that the plane of the valve body and the plane of the valve core cannot be well attached, and the sealing performance of plane sealing is poor. The set gas pressure value of current gas valve A, current gas valve B rises by a wide margin and the phase difference value is inconsistent, and sealing performance is poor, is difficult to set for defects such as accurate, makes the pressure value that carbonated beverage machine set for difficult to guarantee in controllable within range to influence carbonated beverage machine's security performance.
Disclosure of Invention
The purpose of the invention is: the utility model provides a compound sealed gas valve, it has that sealing performance is good, and it is little to set for the gas pressure value rising amplitude, and the gas valve sets for the gas pressure value precision high, guarantees that the pressure value of setting is in controllable within range to improve carbonated beverage machine's security performance.
The invention is realized by the following steps: a composite sealing gas valve comprises a valve body, a valve core assembly, a pressure spring and a valve cover, wherein the valve body comprises a valve core cavity, a valve core seat arranged at the closed end of the valve core cavity and a gas guide hole arranged on the valve core seat; the valve core assembly comprises a valve core and a valve core fixing seat; the valve cover is screwed with the valve core cavity, and the pressure spring is matched with the valve core assembly and the valve cover; it is characterized in that: one end of the valve core assembly is provided with a curved surface-shaped head part and an annular bulge surrounding the curved surface-shaped head part, the curved surface-shaped head part extends into the air guide hole to form circular line contact sealing with the valve body, and the annular bulge is sealed with the plane of the valve body.
The compound sealing gas valve is characterized in that: the curved surface-shaped head part is in a hemispherical shape, or the curved surface-shaped head part is in a cone frustum shape.
The compound sealing gas valve is characterized in that: the end face of the annular bulge opposite to the valve core seat is arc-shaped.
The compound sealing gas valve is characterized in that: the valve rod and the valve core fixing seat of the valve core assembly are integrally formed, and the valve rod is provided with a guide positioning groove along the axial direction;
the valve cover comprises a spring cavity, a valve rod channel, a guide rail arranged on the valve rod channel and an external thread connecting part; an internal thread cavity is arranged in the inner wall of the valve core cavity;
the valve rod passes through the pressure spring, the valve rod is in sliding fit with the valve rod channel, and the guide rail is in sliding fit with the guide positioning groove; the valve core fixing seat is in sealing and sliding fit with the valve core cavity, the external thread connecting part is screwed with the internal thread cavity, and the pressure spring is matched with the valve core fixing seat and an end plate of the spring cavity; the air flow drives the valve core and the valve rod to move.
The compound sealing gas valve is characterized in that: a spring seat is arranged on the valve core fixing seat, an exhaust hole is formed in the closed end of the valve cover, and an internal thread is formed in the open end of the valve cover;
the open end of the valve core cavity is provided with an external thread;
the spring seat is inserted into one end of the pressure spring, and the other end of the pressure spring extends into the valve cover to be matched with the end plate of the valve cover; the axial bulge on the valve core seat is in sliding fit with the valve core cavity.
The compound sealing gas valve is characterized in that: the open end of the valve core cavity is provided with an external thread, and the part adjacent to the valve core seat is provided with an exhaust hole;
the valve cover comprises a spring cavity, a valve rod channel and an external thread connecting part; an internal thread cavity is arranged in the inner wall of the valve core cavity;
the valve rod and the valve core fixing seat are integrally formed;
the valve rod penetrates through the pressure spring and the guide hole, the pressure spring is matched with the valve core fixing seat and the end plate of the valve cover, the valve rod is pulled by external force, and the valve core leaves the valve core seat to exhaust.
The compound sealing gas valve is characterized in that: a guide groove is arranged in the valve core cavity;
the valve core fixing seat is provided with an axial guide rail;
the axial guide rail is in sliding fit with the guide groove.
The invention relates to a composite sealing gas valve, wherein one end of a valve core assembly is provided with a curved surface-shaped head part and an annular bulge surrounding the curved surface-shaped head part, the curved surface-shaped head part extends into a gas guide hole to form circular line contact sealing with a valve body, the annular bulge is sealed with a valve body plane, the contact area is reduced due to the circular line contact sealing, so that the relative friction force between the valve body and the valve core assembly is reduced, the rising amplitude of the valve core assembly relative to a set gas pressure value is reduced, the rising amplitude of the set gas pressure value of the gas valve is further reduced by compressing the annular bulge while the annular bulge is sealed with the valve body plane, and the rising amplitude of the set gas pressure value is smaller, the set gas pressure value of the gas valve is more accurate, and.
Drawings
Fig. 1 is a cross-sectional view of the present invention.
Fig. 2 is a perspective view of the present invention.
Fig. 3 is one of the exploded perspective views of the present invention.
Fig. 4 is a second exploded perspective view of the present invention.
Fig. 5 is a cross-sectional view of a second embodiment of the present invention.
Fig. 6 is an enlarged view of a portion a in fig. 5.
Fig. 7 is an enlarged view of a portion B in fig. 5.
Fig. 8 is one of exploded perspective views of a second embodiment of the present invention.
Fig. 9 is a second exploded perspective view of the second embodiment of the present invention.
Fig. 10 is a schematic view of a force analysis of a conventional gas valve a.
Fig. 11 is a schematic view of a force analysis of a conventional gas valve B.
Fig. 12 is a force analysis diagram of a compound seal gas valve.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
As shown in fig. 1, a composite sealing gas valve comprises a valve body 1, a valve core assembly, a pressure spring 4 and a valve cover 5, wherein the valve body 1 comprises a valve core cavity 11, a valve core seat 12 arranged at the closed end of the valve core cavity, a gas guide hole 13 arranged on the valve core seat and an air inlet pipeline 14; the valve core assembly comprises a valve core 2 and a valve core fixing seat 3, wherein the valve core 2 is fixed on the valve core fixing seat 3, or the valve core 2 and the valve core fixing seat 3 are integrally formed; the valve core 2 is matched with the valve core seat 12, the valve cover 5 is screwed with the valve core cavity 11, and the pressure spring 4 is matched with the valve core seat 12 and the valve cover 5; the opposite end of the valve core 2 to the valve core seat 12 is provided with a curved surface head 21 and an annular bulge 22 surrounding the curved surface head,
the curved surface-shaped head 21 extends into the air guide hole 13, and the annular bulge 22 is tightly matched with the valve core seat 12 to form circular line contact sealing.
The curved head 21 is hemispherical or the curved head 21 is truncated cone-shaped.
The end face of the annular protrusion 22 opposite to the valve core seat 12 is arc-shaped, and the annular protrusion is sealed with the valve body plane. Because of the contact seal of the circular ring line, the contact area of the valve body and the valve core assembly is reduced, and the relative friction force of the valve body and the valve core assembly is also reduced, thereby reducing the rising amplitude of the set gas pressure value of the gas valve. The valve body is offset by the rebound force of the compression annular protrusion when the compression annular protrusion and the valve body are sealed in a plane, after the relative friction force of the valve core assembly, the rising amplitude of the set gas pressure value of the gas valve is further reduced, the set gas pressure value of the valve body and the valve core assembly of the composite sealing gas valve is basically always kept equal to the adjusted spring force, so that the composite sealing gas valve can accurately adjust the pressure value and keep the stable pressure value for a long time, the pressure value of the carbonated beverage machine is ensured in the originally set safety range for a long time, and the safety performance of the carbonated beverage machine is also ensured.
The valve core fixing seat is characterized by further comprising a valve rod 6, wherein the valve rod 6 and the valve core fixing seat 3 are integrally formed, and the valve rod 6 is provided with a guide positioning groove 61 along the axial direction;
the valve cover 5 comprises a spring cavity 51, a valve rod channel 52, a guide rail 53 arranged on the valve rod channel and an external thread connecting part; an internal thread cavity is arranged in the inner wall of the valve core cavity;
the valve rod 6 penetrates through the pressure spring 4, the valve rod 6 is in sliding fit with the valve rod channel 52, and the guide rail 53 is in sliding fit with the guide positioning groove 61 to prevent the valve rod 6 from rotating; the valve core fixing seat 3 is in sealing and sliding fit with the valve core cavity 11, the external thread connecting part is screwed with the internal thread cavity, and the pressure spring 4 is matched with the valve core fixing seat 3 and an end plate of the spring cavity 51; the air flow drives the valve core 2 and the valve rod 6 to move; referred to as a pneumatically actuated valve.
As shown in fig. 5 and 6, a spring seat 31 is arranged on the valve core fixing seat 3, a vent hole 54 is arranged at the closed end of the valve cover 5, and an internal thread is arranged at the open end;
the open end of the valve core cavity 11 is provided with an external thread;
the spring seat 23 is inserted into one end of the pressure spring 4, and the other end of the pressure spring 4 extends into the spring cavity 51 of the valve cover 5 to be matched with the end plate of the valve cover 5; the axial protrusion 32 on the valve core seat 3 is in sliding fit with the valve core cavity 11; the pressure exceeds the set pressure, and the air is exhausted and decompressed.
As shown in fig. 5 and 7, the open end of the valve core cavity 11 is provided with an external thread, and a vent hole 15 is arranged at a position adjacent to the valve core seat;
the valve cover 5 comprises a spring cavity 51, a valve rod channel 52 and an external thread connecting part; an internal thread cavity is arranged in the inner wall of the valve core cavity 11;
the valve core fixing seat is characterized by further comprising a valve rod 6, wherein the valve rod 6 and the valve core fixing seat 3 are integrally formed;
the valve rod 6 penetrates through the pressure spring 4 and the guide hole 52, the pressure spring 4 is matched with the valve core fixing seat 3 and the end plate of the valve cover 5, the valve rod 6 is pulled by external force, and the valve core 2 leaves the valve core seat 12 to exhaust; referred to as a manual exhaust valve.
A guide groove 111 is arranged in the valve core cavity 11;
an axial guide rail 33 is arranged on the valve core fixing seat 3; the axial guide 33 is slidably fitted in the guide groove 111.
As shown in fig. 10, in the conventional gas valve, a spring force F1 of the spring and a friction force F3 between the valve body and the valve core set a gas pressure F4, and a gas pressure F4 is equal to a spring force F1+ a friction force F3 of the spring; the friction force F3 increased by 10-30N after long-term storage;
as shown in fig. 11, the gas valve of the prior art, the elastic force F1 of the spring, sets the gas pressure F4; the gas pressure F4 is equal to the spring force F1; there are problems in that: the sealing performance is poor.
As shown in fig. 12, the present invention sets the spring force F1, the rebound force F2, the friction force F3 between the valve core and the valve core, and the gas pressure F4; the friction force F3 is approximately equal to the bounce force F2, and F4 is equal to the spring force F1+ the friction force F3-the bounce force F2. The sealing performance is good, and the friction force F3 is not increased after long-time storage.
What has been described above is merely a preferred embodiment of the present invention. It should be noted that a person skilled in the art could make several modifications and variations without departing from the principle of the present invention, which should also be regarded as the protection scope of the present invention.
Claims (7)
1. A composite sealing gas valve comprises a valve body, a valve core assembly, a pressure spring and a valve cover, wherein the valve body comprises a valve core cavity, a valve core seat arranged at the closed end of the valve core cavity and a gas guide hole arranged on the valve core seat; the valve core assembly comprises a valve core and a valve core fixing seat; the valve cover is screwed with the valve core cavity, and the pressure spring is matched with the valve core assembly and the valve cover; the method is characterized in that: one end of the valve core assembly is provided with a curved surface-shaped head part and an annular bulge surrounding the curved surface-shaped head part, the curved surface-shaped head part extends into the air guide hole to form circular line contact sealing with the valve body, and the annular bulge is sealed with the plane of the valve body.
2. A compound seal gas valve as defined in claim 1, wherein: the curved surface-shaped head part is in a hemispherical shape, or the curved surface-shaped head part is in a cone frustum shape.
3. A compound seal gas valve as defined in claim 1, wherein: the end face of the annular bulge opposite to the valve core seat is arc-shaped.
4. A compound seal gas valve as defined in claim 1, 2 or 3, wherein: the valve rod and the valve core fixing seat of the valve core assembly are integrally formed, and the valve rod is provided with a guide positioning groove along the axial direction;
the valve cover comprises a spring cavity, a valve rod channel, a guide rail arranged on the valve rod channel and an external thread connecting part; an internal thread cavity is arranged in the inner wall of the valve core cavity;
the valve rod passes through the pressure spring, the valve rod is in sliding fit with the valve rod channel, and the guide rail is in sliding fit with the guide positioning groove; the valve core fixing seat is in sealing and sliding fit with the valve core cavity, the external thread connecting part is screwed with the internal thread cavity, and the pressure spring is matched with the valve core fixing seat and an end plate of the spring cavity; the air flow drives the valve core and the valve rod to move.
5. A compound seal gas valve as defined in claim 1, 2 or 3, wherein: a spring seat is arranged on the valve core fixing seat, an exhaust hole is formed in the closed end of the valve cover, and an internal thread is formed in the open end of the valve cover;
the open end of the valve core cavity is provided with an external thread;
the spring seat is inserted into one end of the pressure spring, and the other end of the pressure spring extends into the valve cover to be matched with the end plate of the valve cover; the axial bulge on the valve core seat is in sliding fit with the valve core cavity.
6. A compound seal gas valve as defined in claim 1, 2 or 3, wherein: the open end of the valve core cavity is provided with an external thread, and the part adjacent to the valve core seat is provided with an exhaust hole;
the valve cover comprises a spring cavity, a valve rod channel and an external thread connecting part; an internal thread cavity is arranged in the inner wall of the valve core cavity;
the valve rod and the valve core fixing seat are integrally formed;
the valve rod penetrates through the pressure spring and the guide hole, the pressure spring is matched with the valve core fixing seat and the end plate of the valve cover, the valve rod is pulled by external force, and the valve core leaves the valve core seat to exhaust.
7. A compound seal gas valve as defined in claim 6, wherein: a guide groove is arranged in the valve core cavity;
the valve core fixing seat is provided with an axial guide rail;
the axial guide rail is in sliding fit with the guide groove.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011355419.0A CN112324919A (en) | 2020-11-26 | 2020-11-26 | Composite sealing gas valve |
| PCT/CN2021/128734 WO2022111252A1 (en) | 2020-11-26 | 2021-11-04 | Composite sealing gas valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011355419.0A CN112324919A (en) | 2020-11-26 | 2020-11-26 | Composite sealing gas valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112324919A true CN112324919A (en) | 2021-02-05 |
Family
ID=74309318
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011355419.0A Pending CN112324919A (en) | 2020-11-26 | 2020-11-26 | Composite sealing gas valve |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN112324919A (en) |
| WO (1) | WO2022111252A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022111252A1 (en) * | 2020-11-26 | 2022-06-02 | 江门市伊科迈特电子科技有限公司 | Composite sealing gas valve |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115506751A (en) * | 2022-10-09 | 2022-12-23 | 中国石油天然气股份有限公司 | Series anti-freezing and anti-blocking constant-pressure air release device and sleeve air recovery method |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3572221B2 (en) * | 1999-03-29 | 2004-09-29 | 三菱重工業株式会社 | Floating poppet valve device |
| CN102537384B (en) * | 2010-12-20 | 2015-07-29 | 西安航天远征流体控制股份有限公司 | The nonmetal base body valve core of interior pressure rubber sealing block |
| CN104633132A (en) * | 2013-11-08 | 2015-05-20 | 北京天高智机技术开发公司 | Production device filling valve |
| CN205136704U (en) * | 2015-10-16 | 2016-04-06 | 吴忠仪表有限责任公司 | One -way accent stream valve |
| CN207569315U (en) * | 2017-10-31 | 2018-07-03 | 浙江华益精密机械股份有限公司 | Overflow valve |
| CN214063799U (en) * | 2020-11-26 | 2021-08-27 | 江门市伊科迈特电子科技有限公司 | Composite sealing gas valve |
| CN112324919A (en) * | 2020-11-26 | 2021-02-05 | 江门市伊科迈特电子科技有限公司 | Composite sealing gas valve |
-
2020
- 2020-11-26 CN CN202011355419.0A patent/CN112324919A/en active Pending
-
2021
- 2021-11-04 WO PCT/CN2021/128734 patent/WO2022111252A1/en active Application Filing
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022111252A1 (en) * | 2020-11-26 | 2022-06-02 | 江门市伊科迈特电子科技有限公司 | Composite sealing gas valve |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2022111252A1 (en) | 2022-06-02 |
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