CN110410538B - One-way exhaust valve - Google Patents
One-way exhaust valve Download PDFInfo
- Publication number
- CN110410538B CN110410538B CN201910822546.8A CN201910822546A CN110410538B CN 110410538 B CN110410538 B CN 110410538B CN 201910822546 A CN201910822546 A CN 201910822546A CN 110410538 B CN110410538 B CN 110410538B
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- cavity
- valve
- exhaust
- valve body
- dividing
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- 238000007789 sealing Methods 0.000 claims abstract description 15
- 238000001746 injection moulding Methods 0.000 claims description 4
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
- F16K15/08—Check valves with guided rigid valve members shaped as rings
- F16K15/12—Springs for ring valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0209—Check valves or pivoted valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/08—Guiding yokes for spindles; Means for closing housings; Dust caps, e.g. for tyre valves
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Safety Valves (AREA)
- Self-Closing Valves And Venting Or Aerating Valves (AREA)
Abstract
The invention discloses a one-way exhaust valve, which comprises a valve body, a sealing ring, a valve core, a spring and a valve cover, wherein an assembly boss is arranged on the outer wall of the valve body, exhaust holes are circumferentially distributed on the assembly boss, and the valve cover is covered on the top of the valve body and is riveted and fixed with the assembly boss; an annular cavity is formed between the spring guide seat in the valve cover and the inner cavity wall, a plurality of first cavity-dividing ribs which are radially arranged are circumferentially distributed at the top of the annular cavity, and a first exhaust channel is formed between two adjacent first cavity-dividing ribs; a plurality of second cavity dividing ribs which are axially arranged are circumferentially distributed on the inner wall of the cavity of the valve cover, and a second exhaust channel is formed between two adjacent second cavity dividing ribs; the second exhaust channel is communicated with the exhaust hole; the one-way exhaust valve has the advantages that the cross section area of the exhaust channel is large, and gas can be rapidly exhausted; the valve body and the valve cover are connected stably and are not easy to loosen, the spring can shrink stably according to the specified pressure, and the exhaust valve can be ensured to be opened accurately; and the working stability of the exhaust valve can be ensured.
Description
Technical Field
The invention relates to the technical field of exhaust valves for vehicles, in particular to a one-way exhaust valve.
Background
Under the condition that the vehicle is accelerated rapidly in the driving process, a large amount of gas is generated in the transfer case, the pressure in the cavity is prevented from being too high, the pressure in the cavity is reduced, a check valve is required to be installed to complete the pressure relief function, and the check valve is generally installed at the highest point of the assembly at the positions of the transfer case and the front/rear bridge on the automobile.
The structure of the existing one-way valve, namely the working principle, is shown in figure 1, the arrow in the figure indicates the air flow direction, when pressure is generated in the transfer case body, the air flow enters the valve body through the valve exhaust cavity, when the pressure reaches the designed range, the spring in the valve begins to compress, the sealing gasket rises along with the air flow direction, the air flow enters the valve cavity, at the moment, the valve is opened to be in a working state, and is discharged to the outer wall surface through the hole on the cavity wall, and then is discharged to the atmosphere through the exhaust hole on the valve body.
The valve cover of the one-way valve is finished by adopting a metal piece processing technology at present, the design requirement of the size of the air guide structure cannot be met, and the valve body and the valve shell are attached to form a sealing state. The sectional area of the vent hole formed in the inner wall of the valve body is small, gas in the valve cavity cannot be rapidly discharged, the valve cover is in threaded connection with the valve body, the valve cover is easy to loosen in use, the compression force value of the spring starts to change when the gas flow reaches the designed pressure, the rubber pad rises along with the direction of the gas flow, the gas flow enters the valve cavity, the valve works in an abnormal design gas pressure range, and the valve design structure fails; the air guide hole is lower, and rainwater or foreign matters easily enter the valve body cavity in the using process of the vehicle to influence the normal operation of the valve, so that the valve function is invalid.
Disclosure of Invention
The invention aims to provide a one-way exhaust valve so as to solve the problems in the prior art, and the cross section area of an exhaust channel is large, so that gas can be rapidly exhausted; the valve body and the valve cover are connected stably and are not easy to loosen, the spring can shrink stably according to the specified pressure, and the exhaust valve can be ensured to be opened accurately; and the working stability of the exhaust valve can be ensured.
In order to achieve the above object, the present invention provides the following solutions:
The invention provides a one-way exhaust valve which comprises a valve body, a sealing ring, a valve core, a spring and a valve cover, wherein an assembly boss is arranged on the outer wall of the valve body, exhaust holes are circumferentially distributed on the assembly boss, the valve cover is covered on the top of the valve body, and the bottom opening of the valve cover is fixedly connected with the assembly boss;
The inside of the valve body is provided with a first exhaust cavity and a second exhaust cavity which are communicated with each other, the first exhaust cavity is arranged at the bottom and is communicated with an air inlet channel in the automobile transfer case assembly, and the inner diameter of the second exhaust cavity is larger than that of the first exhaust cavity; the valve core is arranged in the second exhaust cavity, and the outer diameter of the valve core is smaller than the inner diameter of the second exhaust cavity; the sealing ring is arranged at the bottom of the second exhaust cavity;
A spring guide seat is arranged at the top of the cavity of the inner cavity of the valve cover, the spring guide seat extends into the second exhaust cavity and is opposite to the valve core, one end of the spring is sleeved on the spring guide seat and is abutted with the top of the cavity of the valve cover, and the other end of the spring is sleeved on the valve core and is abutted with a spring limiting seat arranged on the valve core; the spring is pre-tensioned between the valve cover and the valve core, so that the valve core is in contact with the sealing ring to seal the second exhaust cavity;
An annular cavity is formed between the spring guide seat and the inner cavity wall of the valve cover, a plurality of first cavity-dividing ribs which are radially arranged are circumferentially distributed at the top of the annular cavity, the first cavity-dividing ribs are propped against the top end surface of the valve body, and a first exhaust channel is formed between two adjacent first cavity-dividing ribs; a plurality of second cavity dividing ribs which are axially arranged are circumferentially distributed on the inner wall of the cavity of the valve cover, the second cavity dividing ribs are in contact with the outer wall of the valve body, and a second exhaust channel is formed between two adjacent second cavity dividing ribs; the second exhaust passage is communicated with the exhaust hole.
Preferably, the valve body is assembled on a transfer case assembly of an automobile, threads are arranged on the outer wall of the bottom of the valve body, and the valve body is in threaded connection with mounting threaded holes arranged on a shell of the transfer case assembly.
Preferably, 4 first cavity-dividing ribs are arranged, and the 4 first cavity-dividing ribs are uniformly distributed in the circumferential direction; the second cavity-dividing ribs are arranged in 4, 4 second cavity-dividing ribs are circumferentially uniformly distributed, the first cavity-dividing ribs and the second cavity-dividing ribs are arranged in a staggered mode, and the included angle between the adjacent first cavity-dividing ribs and the second cavity-dividing ribs is 45 degrees.
Preferably, the thickness of the first cavity-dividing rib is 0.3mm, the thickness of the second cavity-dividing rib is 0.2mm, and the side surface of the second cavity-dividing rib, which is in contact with the outer side wall of the valve body, is an arc-shaped surface.
Preferably, the outer side of the bottom end surface of the spring guide seat opposite to the valve core is chamfered to form an annular inclined surface structure.
Preferably, the height of the spring guide seat is 1/2 of the length of the spring.
Preferably, an annular groove is formed in the bottom end face of the assembly boss, and the vent holes are formed in the top end face of the assembly boss from the annular groove.
Preferably, the number of the exhaust holes is 4, and the number of the exhaust holes is 4 and uniformly distributed in the circumferential direction.
Preferably, the bottom opening of the valve cover is an outward-expanding horn-shaped opening, the outer wall of the horn-shaped opening is riveted and fixed with the assembling boss, the inner wall of the horn-shaped opening forms an annular guiding inclined plane, the guiding inclined plane and the outer wall of the valve body form a third exhaust channel with a triangular section, and the third exhaust channel is opposite to and communicated with the exhaust hole.
Preferably, the valve cover is an injection molding piece, and the valve cover, the spring guide seat, the first cavity-dividing rib and the second cavity-dividing rib are integrally injection molded.
Compared with the prior art, the invention has the following beneficial technical effects:
1. The one-way exhaust valve provided by the invention has the advantages that the valve cover adopts an injection molding piece, so that the overall weight is reduced; the rib is added on the inner top surface of the valve cover, so that a first exhaust channel is formed when the top end of the valve body is assembled with the valve cover, the rib is added on the periphery of the inner wall of the valve cover, the rib is attached to the outer wall surface of the valve body to form a second exhaust channel, and the two exhaust channels increase the sectional area of the air guide, so that air flow in the cavity of the valve body can be rapidly discharged to the outer wall of the valve body, and the air is discharged to the atmosphere through the exhaust hole on the valve body.
2. Compared with the existing structure of opening the exhaust hole on the side wall of the valve body, the one-way exhaust valve provided by the invention has the advantages that the channel communicated with the inner cavity of the valve body is arranged at the topmost end of the valve cover, the position is higher, rainwater or foreign matters are not easy to enter the inner cavity of the valve body, and the working stability of the exhaust valve is ensured.
3. According to the one-way exhaust valve, the valve body and the valve cover are riveted together, so that the one-way exhaust valve is firm in assembly, can be normally opened when the air flow influences the required pressure, and is accurate in passing pressure value.
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 embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the structure and operation principle of a check valve in the prior art;
FIG. 2 is an exploded view of the one-way vent valve of the present invention;
FIG. 3 is an assembled view of the one-way exhaust valve of the present invention;
FIG. 4 is a cross-sectional view taken along A-A of FIG. 3;
FIG. 5 is a bottom view of the valve cover of the present invention;
FIG. 6 is a schematic view showing the structure of the opened state of the one-way exhaust valve according to the present invention;
FIG. 7 is an assembly view of the one-way exhaust valve and transfer case assembly of the present invention;
FIG. 8 is an assembly view of the housing of the one-way exhaust valve and transfer case assembly of the present invention;
In the figure: 1-transfer case assembly, 2-shell, 3-intake duct, 4-mounting threaded hole, 5-one-way exhaust valve, 501-valve body, 502-sealing ring, 503-valve core, 504-spring, 505-valve cover, 506-spring guide seat, 507-first cavity rib, 508-second cavity rib, 509-horn-shaped opening, 510-spring limit seat, 511-exhaust hole, 512-annular groove, 513-assembling boss, 514-first exhaust cavity, 515-second exhaust cavity, 516-first exhaust channel, 517-second exhaust channel, 518-third exhaust channel.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention aims to provide a one-way exhaust valve so as to solve the problems in the prior art.
In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to the appended drawings and appended detailed description.
The invention provides a one-way exhaust valve, as shown in fig. 2-5, which comprises a valve body 501, a sealing ring 502, a valve core 503, a spring 504 and a valve cover 505, wherein an assembly boss 513 is arranged on the outer wall of the valve body 501, exhaust holes 511 are circumferentially distributed on the assembly boss 513, the valve cover 505 is covered on the top of the valve body 501, and the bottom opening of the valve cover 505 is riveted and fixed with the assembly boss 513;
The inside of the valve body 501 is provided with a first exhaust cavity 514 and a second exhaust cavity 515 which are communicated with each other, the first exhaust cavity 514 is arranged at the bottom and communicated with an air inlet channel 3 in a transfer case assembly 1 of an automobile, and the inner diameter of the second exhaust cavity 515 is larger than that of the first exhaust cavity 514; the valve core 503 is arranged in the second exhaust cavity 515, and the outer diameter of the valve core 503 is smaller than the inner diameter of the second exhaust cavity 515, so that the two can pass through air flow; the sealing ring 502 is arranged at the cavity bottom of the second exhaust cavity 515;
A spring guide seat 506 is arranged at the top of the cavity of the valve cover 505, the spring guide seat 506 extends into the second exhaust cavity 515 and is opposite to the valve core 503, one end of the spring 504 is sleeved on the spring guide seat 506 and is abutted with the cavity top of the valve cover 505, and the other end of the spring 504 is sleeved on the valve core 503 and is abutted with a spring limit seat 510 arranged on the valve core 503; the spring 504 is preloaded between the valve cover 505 and the valve core 503, so that the valve core 503 contacts with the sealing ring 502 to seal the second exhaust cavity 515;
An annular cavity is formed between the spring guide seat 506 and the inner cavity wall of the valve cover 505, a plurality of first cavity-dividing ribs 507 which are radially arranged are circumferentially distributed at the top of the annular cavity, the first cavity-dividing ribs 507 are propped against the top end surface of the valve body 501, and a first exhaust channel 516 is formed between two adjacent first cavity-dividing ribs 507; a plurality of axially arranged second cavity-dividing ribs 508 are circumferentially distributed on the inner wall of the cavity of the valve cover 505, the second cavity-dividing ribs 508 are in contact with the outer wall of the valve body 501, and a second exhaust channel 517 is formed between two adjacent second cavity-dividing ribs 508; the second exhaust passage 517 communicates with the exhaust hole 511.
Specifically, in the invention, 4 first cavity-dividing ribs 507 are arranged, and the 4 first cavity-dividing ribs 507 are uniformly distributed along the circumferential direction; the number of the second cavity-dividing ribs 508 is 4, the 4 second cavity-dividing ribs 508 are also uniformly distributed in the circumferential direction, the first cavity-dividing ribs 507 and the second cavity-dividing ribs 508 are staggered, and the included angle between the adjacent first cavity-dividing ribs 507 and second cavity-dividing ribs 508 is 45 degrees, so that the first exhaust channel 516 and the second exhaust channel 517 are staggered by 45 degrees, and the uniformity of ventilation pressure is further ensured; wherein, the thickness of the first cavity-dividing rib 507 is 0.3mm; the thickness of the second cavity-dividing rib 508 is 0.2mm, and in order to be matched with the outer wall of the cylindrical valve body 501, the side surface of the second cavity-dividing rib 508, which is contacted with the outer side wall of the valve body 501, is an arc-shaped surface.
The outer side of the bottom end surface of the spring guide seat 506 opposite to the valve core 503 is chamfered to form an annular inclined surface structure, so that the resistance of air flow is reduced; the height of spring guide 506 is 1/2 the length of spring 504.
An annular groove 512 is formed in the bottom end face of the assembly boss 513, and the exhaust hole 511 is formed in the top end face of the assembly boss 513 through the annular groove 512; the exhaust holes 511 are provided with 4, and 4 exhaust holes 511 are uniformly distributed in the circumferential direction.
The bottom opening of the valve cover 505 is an outward-expanding horn-shaped opening 509, the outer wall of the horn-shaped opening 509 is riveted and fixed with the assembling boss 513, the inner wall of the horn-shaped opening 509 forms an annular guiding inclined plane, the guiding inclined plane and the outer wall of the valve body 501 form a third exhaust channel 518 with a triangular section, the third exhaust channel 518 is opposite to and communicated with the exhaust hole 511, and the triangular third exhaust channel 518 can enlarge the exhaust area of gas.
In the invention, the valve cover 505 is an injection molding piece, so that the overall weight of the one-way valve can be reduced; the valve cover 505, the spring guide seat 506, the first cavity-dividing rib 507 and the second cavity-dividing rib 508 are integrally injection molded.
As shown in fig. 7-8, the valve body 501 is assembled on the transfer case assembly 1 of the automobile, threads are arranged on the outer wall of the bottom of the valve body 501, and the valve body is in threaded connection with the mounting threaded hole 4 arranged on the shell 2 of the transfer case assembly 1.
The working principle of the one-way exhaust valve provided by the invention is as follows: when the pressure in the transfer case is low, the valve core 503 is kept at the original position under the action of the spring 504, the valve core 503 and the sealing ring 502 form a sealed closed state, and the one-way valve is in a closed state. As shown in fig. 6, when the gas pressure in the transfer case is greater than the elastic force of the spring 504, the valve core 503 pushes the spring 504 to compress and rise, a gap is generated between the valve core 503 and the sealing ring 502, the second exhaust cavity 515 is opened and ventilated, the gas in the transfer case enters the second exhaust cavity 515 through the first exhaust cavity 514, and is discharged through the exhaust holes 511 on the assembling boss 513 after passing through the first exhaust channel 516 and the second exhaust channel 517 formed by the first cavity rib 507 and the second cavity rib 508 respectively.
The principles and embodiments of the present invention have been described with reference to specific examples, which are provided to facilitate understanding of the method and core ideas of the present invention; also, it is within the scope of the present invention to be modified by those of ordinary skill in the art in light of the present teachings. In summary, the present description should not be construed as limiting the invention.
Claims (8)
1. A one-way exhaust valve, characterized in that: the valve comprises a valve body, a sealing ring, a valve core, a spring and a valve cover, wherein an assembly boss is arranged on the outer wall of the valve body, exhaust holes are circumferentially distributed on the assembly boss, the valve cover is covered on the top of the valve body, and the bottom opening of the valve cover is fixedly connected with the assembly boss;
The inside of the valve body is provided with a first exhaust cavity and a second exhaust cavity which are communicated with each other, the first exhaust cavity is arranged at the bottom and is communicated with an air inlet channel in the automobile transfer case assembly, and the inner diameter of the second exhaust cavity is larger than that of the first exhaust cavity; the valve core is arranged in the second exhaust cavity, and the outer diameter of the valve core is smaller than the inner diameter of the second exhaust cavity; the sealing ring is arranged at the bottom of the second exhaust cavity;
A spring guide seat is arranged at the top of the cavity of the inner cavity of the valve cover, the spring guide seat extends into the second exhaust cavity and is opposite to the valve core, one end of the spring is sleeved on the spring guide seat and is abutted with the top of the cavity of the valve cover, and the other end of the spring is sleeved on the valve core and is abutted with a spring limiting seat arranged on the valve core; the spring is pre-tensioned between the valve cover and the valve core, so that the valve core is in contact with the sealing ring to seal the second exhaust cavity;
An annular cavity is formed between the spring guide seat and the inner cavity wall of the valve cover, a plurality of first cavity-dividing ribs which are radially arranged are circumferentially distributed at the top of the annular cavity, the first cavity-dividing ribs are propped against the top end surface of the valve body, and a first exhaust channel is formed between two adjacent first cavity-dividing ribs; a plurality of second cavity dividing ribs which are axially arranged are circumferentially distributed on the inner wall of the cavity of the valve cover, the second cavity dividing ribs are in contact with the outer wall of the valve body, and a second exhaust channel is formed between two adjacent second cavity dividing ribs; the second exhaust channel is communicated with the exhaust hole;
the first cavity-dividing ribs are provided with 4 ribs, and the 4 ribs are uniformly distributed in the circumferential direction; the second cavity-dividing ribs are provided with 4, 4 second cavity-dividing ribs are also uniformly distributed in the circumferential direction, the first cavity-dividing ribs and the second cavity-dividing ribs are arranged in a staggered manner, and the included angle between the adjacent first cavity-dividing ribs and the second cavity-dividing ribs is 45 degrees;
the bottom opening part of the valve cover is an outward-expanding horn-shaped opening, the outer wall of the horn-shaped opening is riveted and fixed with the assembling boss, the inner wall of the horn-shaped opening forms an annular guide inclined plane, the guide inclined plane and the outer wall of the valve body form a third exhaust channel with a triangular section, and the third exhaust channel is opposite to and communicated with the exhaust hole.
2. The one-way exhaust valve according to claim 1, wherein: the transfer case assembly is characterized in that the valve body is assembled on the transfer case assembly of the automobile, threads are arranged on the outer wall of the bottom of the valve body, and the valve body is in threaded connection with threaded holes arranged on the shell of the transfer case assembly.
3. The one-way exhaust valve according to claim 1, wherein: the thickness of the first cavity-dividing rib is 0.3mm, the thickness of the second cavity-dividing rib is 0.2mm, and the side surface of the second cavity-dividing rib, which is in contact with the outer side wall of the valve body, is an arc-shaped surface.
4. The one-way exhaust valve according to claim 1, wherein: and the outer sides of the bottom end surfaces of the spring guide seats, which are opposite to the valve core, are subjected to chamfering treatment to form an annular inclined surface structure.
5. The one-way exhaust valve according to claim 1, wherein: the height of the spring guide seat is 1/2 of the length of the spring.
6. The one-way exhaust valve according to claim 1, wherein: the bottom end face of the assembly boss is provided with an annular groove, and the vent holes are formed from the annular groove to the top end face of the assembly boss.
7. The one-way exhaust valve according to claim 6, wherein: the exhaust holes are formed in 4, and 4 exhaust holes are uniformly distributed in the circumferential direction.
8. The one-way exhaust valve according to claim 1, wherein: the valve cover is an injection molding piece, and the valve cover, the spring guide seat, the first cavity-dividing rib and the second cavity-dividing rib are integrally injection molded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910822546.8A CN110410538B (en) | 2019-09-02 | 2019-09-02 | One-way exhaust valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910822546.8A CN110410538B (en) | 2019-09-02 | 2019-09-02 | One-way exhaust valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110410538A CN110410538A (en) | 2019-11-05 |
| CN110410538B true CN110410538B (en) | 2024-04-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910822546.8A Active CN110410538B (en) | 2019-09-02 | 2019-09-02 | One-way exhaust valve |
Country Status (1)
| Country | Link |
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| CN (1) | CN110410538B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111059291B (en) * | 2019-11-13 | 2021-09-03 | 采埃孚商用车系统(青岛)有限公司 | Waterproof exhaust apparatus of car |
| CN112648353B (en) * | 2021-01-07 | 2022-05-03 | 六安市龙兴汽车零部件有限公司 | New energy automobile gearbox casing lateral wall ventilation structure |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204239816U (en) * | 2014-10-18 | 2015-04-01 | 浙江鸿森机械有限公司 | The four-way change-over valve of double-shaft seal sealing |
| CN204284541U (en) * | 2014-10-29 | 2015-04-22 | 浙江亿日气动科技有限公司 | one-way exhaust plug |
| CN205244495U (en) * | 2015-12-10 | 2016-05-18 | 西安航天动力研究所 | Air exhaust one -way valve |
| CN210890249U (en) * | 2019-09-02 | 2020-06-30 | 北京平恩康汽车技术有限公司 | One-way exhaust valve |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006234045A (en) * | 2005-02-24 | 2006-09-07 | Tokai Rubber Ind Ltd | Connector with built-in valve |
-
2019
- 2019-09-02 CN CN201910822546.8A patent/CN110410538B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204239816U (en) * | 2014-10-18 | 2015-04-01 | 浙江鸿森机械有限公司 | The four-way change-over valve of double-shaft seal sealing |
| CN204284541U (en) * | 2014-10-29 | 2015-04-22 | 浙江亿日气动科技有限公司 | one-way exhaust plug |
| CN205244495U (en) * | 2015-12-10 | 2016-05-18 | 西安航天动力研究所 | Air exhaust one -way valve |
| CN210890249U (en) * | 2019-09-02 | 2020-06-30 | 北京平恩康汽车技术有限公司 | One-way exhaust valve |
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| Publication number | Publication date |
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| CN110410538A (en) | 2019-11-05 |
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