CN109094548B - Bias three-way integrated check valve - Google Patents
Bias three-way integrated check valve Download PDFInfo
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- CN109094548B CN109094548B CN201811002931.XA CN201811002931A CN109094548B CN 109094548 B CN109094548 B CN 109094548B CN 201811002931 A CN201811002931 A CN 201811002931A CN 109094548 B CN109094548 B CN 109094548B
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- plastic
- check valve
- circular diaphragm
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- upper shell
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T15/00—Construction arrangement, or operation of valves incorporated in power brake systems and not covered by groups B60T11/00 or B60T13/00
- B60T15/02—Application and release valves
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W90/00—Enabling technologies or technologies with a potential or indirect contribution to greenhouse gas [GHG] emissions mitigation
- Y02W90/10—Bio-packaging, e.g. packing containers made from renewable resources or bio-plastics
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Check Valves (AREA)
Abstract
The invention discloses an offset three-way integrated one-way valve, which belongs to the field of automobile brake auxiliary systems and comprises a plastic upper shell and a plastic lower shell, wherein the plastic upper shell and the plastic lower shell are welded through ultrasonic waves, the upper end of the plastic upper shell is provided with an olive-type structure, the plastic lower shell comprises a rotation stopping rib structure and two barb type bamboo joints, the rotation stopping rib structure is positioned at the outer side of each barb type bamboo joint and is fixedly connected with each barb type bamboo joint, the two barb type bamboo joints are communicated with each other, a circular diaphragm is arranged at the inner end of the plastic lower shell, and a mounting hole is cut at the inner end of the circular diaphragm.
Description
Technical Field
The invention relates to the field of automobile brake auxiliary systems, in particular to a bias three-way integrated check valve.
Background
At present, the automobile is provided with a vacuum braking auxiliary braking system, and at present, the automobile is quite common and consists of an engine, a vacuum pump, a booster and other elements. The vacuum degree in the booster can assist in braking, so that a person can easily step on the brake pedal. The vacuum degree in the booster is provided through the engine and the vacuum pump, and the vacuum degree is kept through the check valve, for example, the vacuum degree is insufficient, so that a brake pedal is too hard, and the brake is not stepped on, so that accidents are caused.
However, the vacuum pipeline of the existing vacuum brake auxiliary brake system is complex, so that the installation time of the vacuum tube is prolonged, and the cost is increased.
Disclosure of Invention
1. Technical problem to be solved
Aiming at the problems existing in the prior art, the invention aims to provide the bias three-way integrated check valve, which can simplify the complexity of a vacuum pipeline by integrating the check valve and the three-way, optimize the arrangement effect of the pipeline, reduce the assembly time of a vacuum tube and save the cost, and can realize the effect of controlling the flow direction of fluid in a vacuum brake auxiliary system through a circular diaphragm.
2. Technical proposal
In order to solve the problems, the invention adopts the following technical scheme.
The utility model provides an integrated check valve of biasing tee bend, includes casing and plastics lower casing on the plastics, casing passes through ultrasonic welding under casing and the plastics on the plastics, casing upper end is provided with olive package formula structure down, the plastics is including stopping rotating reinforcement structure and two barb formula bamboo joints down, it is located barb formula bamboo joint outside to stop rotating reinforcement structure and barb formula bamboo joint fixed connection, two barb formula bamboo joints link up each other, the casing inner is equipped with circular diaphragm under the plastics, circular diaphragm inner cutting has the mounting hole, the reference column is installed to the casing inner down, the reference column outer end cutting has a plurality of air vents, the reference column cup joints through the mounting hole with circular diaphragm, circular diaphragm is located the air vent top, the casing lower extreme is installed the reference rib down, the reference rib contacts with circular diaphragm, the casing inner fixedly connected with location arch down, the location arch is located the reference column outside, and the location arch is located circular diaphragm below, circular lower extreme cutting has the seal groove, the location arch top is equipped with circular diaphragm, the location arch phase-match with the inner wall of vacuum pipe through having realized that the seal groove is equipped with the seal groove, and the vacuum pipe has reduced the realization of the integrated effect through the realization of the vacuum pipe, and the vacuum pipe has been realized the realization of the vacuum pipe has reduced the cost.
Further, the lower end of the plastic upper shell is a cylindrical surface, the upper end of the plastic lower shell is a conical surface, the lower end of the plastic upper shell and the upper end of the plastic lower shell are mutually assembled and contacted, and the plastic upper shell and the plastic lower shell can generate heat energy at the contact surface to be melted through high-frequency vibration of ultrasonic waves, so that the plastic upper shell and the plastic lower shell are welded together.
Furthermore, triangle-shaped + semicircular groove has been excavated to the lower extreme of casing on the plastics, triangle-shaped + semicircular groove is located the plastics and goes up the top of casing and plastics lower casing contact point, and triangle-shaped + semicircular groove can form certain space with the plane of casing under the plastics in the welding process in order to store the melt that produces in the welding process.
Further, the cavity is cut into at the inner end of the circular diaphragm, polyurethane fiber is filled in the cavity, the polyurethane fiber has good rebound resilience, when the vacuum degree of the upper portion of the check valve is smaller than the vacuum degree of the inner portion, the polyurethane fiber can enable the circular diaphragm to rebound in time, gas is not easy to flow back, and the using effect of the check valve is improved.
Further, the top has the spherical annular in the seal groove, spherical annular inner is equipped with double-deck sealing ring, oval ring has been placed to double-deck sealing ring inner, oval ring inner is filled with high resilience sponge, when check valve upper portion vacuum is less than inside vacuum, circular diaphragm is closed under the pressure differential effect, prevent the passage of air current, the protruding card of location is just advanced in the seal groove this moment, increase the seal, the protruding top of location can block into spherical annular, extrude double-deck sealing ring, make double-deck sealing ring extend all around along the direction of its inside oval ring, make again increase the gas tightness, high resilience sponge has fine elasticity, increase buffering, protection double-deck sealing ring and oval ring are difficult for being broken by the extrusion.
Further, the rubber lantern ring is sleeved on the inner wall of the mounting hole and matched with the positioning column, and the rubber lantern ring is in contact with the positioning column, so that the mounting hole can be protected by the rubber lantern ring, the edge of the mounting hole is not easy to crack, and the service life of the one-way valve is prolonged.
Further, the diameter of the double-layer sealing ring is larger than the distance at the notch of the spherical annular groove, so that the double-layer sealing ring cannot fall out of the spherical annular groove.
Furthermore, the double-layer sealing ring is made of silicon rubber, and the silicon rubber has good low temperature resistance and high temperature resistance and can be normally used at a temperature of between 55 ℃ below zero and 180 ℃.
Further, the included angle between the two barb type bamboo joints is ninety degrees.
Furthermore, the plastic upper shell and the plastic lower shell are made of high-quality inlet materials, and have good flame resistance and mechanical property, so that the check valve can be ensured to be normally used at the temperature of between 40 ℃ below zero and 120 ℃.
3. Advantageous effects
Compared with the prior art, the invention has the advantages that:
(1) The scheme can simplify the complexity of the vacuum pipeline by integrating the check valve and the tee joint together, optimize the arrangement effect of the pipeline, reduce the assembly time of the vacuum pipe, save the cost, and realize the control effect on the flow direction of the fluid in the vacuum brake auxiliary system through the circular diaphragm.
(2) The lower end of the plastic upper shell is a cylindrical surface, the upper end of the plastic lower shell is a conical surface, the lower end of the plastic upper shell and the upper end of the plastic lower shell are mutually assembled and contacted, and the plastic upper shell and the plastic lower shell can generate heat energy at the contact surface to be melted through high-frequency vibration of ultrasonic waves, so that the plastic upper shell and the plastic lower shell are welded together.
(3) The triangle-shaped + semicircular groove has been excavated to the lower extreme of casing on the plastics, and triangle-shaped + semicircular groove is located the top of casing and plastics lower casing contact point on the plastics, and triangle-shaped + semicircular groove can form certain space with the plane of casing under the plastics in the welding process in order to store the melt that produces in the welding process.
(4) The inner end of the circular diaphragm is provided with a cavity, polyurethane fibers are filled in the cavity, the polyurethane fibers have good rebound resilience, when the vacuum degree of the upper part of the check valve is smaller than that of the inside, the circular diaphragm can rebound in time by the polyurethane fibers, so that gas is not easy to flow back, and the use effect of the check valve is improved.
(5) The top is excavated and is had spherical annular in the seal groove, spherical annular inner is equipped with double-deck sealing ring, elliptical ring has been placed to double-deck sealing ring inner, elliptical ring inner is filled with high resilience sponge, when check valve upper portion vacuum is less than inside vacuum, circular diaphragm is closed under the pressure differential effect, prevent the passage of air current, the protruding just card of location is in the seal groove this moment, increase the seal, the protruding top of location can block into spherical annular, extrude double-deck sealing ring, make double-deck sealing ring extend all around along the direction of its inside elliptical ring, make the increase gas tightness again, the effect of reinforcing prevention air current backward flow, high resilience sponge has fine elasticity, increase buffering, protect double-deck sealing ring and elliptical ring be difficult for being broken by the extrusion.
(6) The rubber lantern ring is sleeved on the inner wall of the mounting hole and matched with the positioning column, and the rubber lantern ring is in contact with the positioning column, so that the mounting hole can be protected by the rubber lantern ring, the edge of the mounting hole is not easy to crack, and the service life of the one-way valve is prolonged.
(7) The diameter of the double-layer sealing ring is larger than the distance between the notch of the spherical annular groove, so that the double-layer sealing ring cannot fall out of the spherical annular groove.
(8) The double-layer sealing ring is made of silicon rubber, and the silicon rubber has good low temperature resistance and high temperature resistance and can be normally used at a temperature of between 55 ℃ below zero and 180 ℃.
(9) The included angle between two barb type bamboo joints is ninety degrees.
(10) The plastic upper shell and the plastic lower shell are made of high-quality inlet materials, and have good flame resistance and mechanical property, so that the check valve can be ensured to be normally used at the temperature of between 40 ℃ below zero and 120 ℃.
Drawings
FIG. 1 is a schematic view of the front face of the present invention;
FIG. 2 is a schematic diagram of the structure at A in FIG. 1;
FIG. 3 is a schematic diagram of the structure at B in FIG. 1;
FIG. 4 is a schematic view of the circular diaphragm portion of the present invention;
FIG. 5 is a schematic view of the structure at C in FIG. 4;
FIG. 6 is a schematic view of a double seal ring of the present invention in partial cross section;
fig. 7 is a schematic diagram of the present invention.
The reference numerals in the figures illustrate:
the plastic rubber ring comprises a plastic upper shell, a plastic lower shell, a 3 rotating-stopping rib structure, a 4 positioning column, a 5 high-resilience sponge, a 6 barb type bamboo joint, a 7 olive bag type structure, an 8 triangle+semicircular groove, a 9 circular diaphragm, a 10 vent hole, an 11 positioning bulge, a 12 mounting hole, a 13 positioning rib, a 14 rubber sleeve ring, 15 polyurethane fibers, a 16 sealing groove, a 17 spherical ring groove, an 18 double-layer sealing ring and a 19 elliptic ring.
Detailed Description
The drawings in the embodiments of the present invention will be combined; the technical scheme in the embodiment of the invention is clearly and completely described; obviously; the described embodiments are only a few embodiments of the present invention; but not all embodiments, are based on embodiments in the present invention; all other embodiments obtained by those skilled in the art without undue burden; all falling within the scope of the present invention.
In the description of the present invention, it should be noted that the positional or positional relationship indicated by the terms such as "upper", "lower", "inner", "outer", "top/bottom", etc. are based on the positional or positional relationship shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "configured to," "engaged with," "connected to," and the like are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Example 1:
referring to fig. 1-7, an offset three-way integrated check valve comprises a plastic upper shell 1 and a plastic lower shell 2, wherein the plastic upper shell 1 and the plastic lower shell 2 are made of high-quality inlet materials, have good flame resistance and mechanical property, can ensure that the check valve is normally used at the temperature of-40 ℃ to 120 ℃, the plastic upper shell 1 and the plastic lower shell 2 are welded by ultrasonic, the lower end of the plastic upper shell 1 is a cylindrical surface, the upper end of the plastic lower shell 2 is a conical surface, the lower end of the plastic upper shell 1 and the upper end of the plastic lower shell 2 are mutually assembled and contacted, the plastic upper shell 1 and the plastic lower shell 2 can generate heat energy at the contact surface through ultrasonic high-frequency vibration so as to be welded together, the lower end of the plastic upper shell 1 is provided with a triangle + semicircular groove 8, the triangle + semicircular groove 8 is positioned above the contact point of the plastic upper shell 1 and the plastic lower shell 2, the triangle + semicircular groove 8 can form a certain space with the plane of the plastic lower shell 2 in the welding process to store melting materials generated in the welding process, the olive-shaped structure 7 is arranged at the upper end of the plastic upper shell 1, the olive-shaped structure 7 can be directly connected with a rubber tube and is connected with an engine, the plastic lower shell 2 comprises a rotation stopping rib structure 3 and two barb type bamboo joints 6, the included angle between the two barb type bamboo joints 6 is ninety degrees, the two barb type bamboo joints 6 are respectively connected with a vacuum booster and a vacuum pump through nylon pipes, the rotation stopping rib structure 3 is positioned at the outer side of the barb type bamboo joints 6, the rotation stopping rib structure 3 is fixedly connected with the barb type bamboo joints 6, the two barb type bamboo joints 6 are mutually communicated, a circular diaphragm 9 is arranged at the inner end of the plastic lower shell 2, a mounting hole 12 is cut at the inner end of the circular diaphragm 9, the inner wall cover of mounting hole 12 is equipped with rubber lantern ring 14, rubber lantern ring 14 and reference column 4 assortment, and rubber lantern ring 14 is contacted with reference column 4, rubber lantern ring 14 can protect mounting hole 12 department, make the edge of mounting hole 12 be difficult for the fracture, the life of check valve is prolonged, the reference column 4 is installed to casing 2 inner under the plastics, a plurality of air vents 10 have been excavated to the reference column 4 outer end, the reference column 4 cup joints through mounting hole 12 with circular diaphragm 9, circular diaphragm 9 is located air vent 10 top, the location muscle 13 is installed to casing 1 lower extreme on the plastics, location muscle 13 is contacted with circular diaphragm 9, casing 2 inner fixedly connected with location arch 11 under the plastics, location arch 11 is located the reference column 4 outside, and location arch 11 is located circular diaphragm 9 below, circular diaphragm 9 lower extreme is excavated there is seal groove 16, seal groove 16 and location arch 11 top assorted, the inner wall bonding of seal groove 16 is equipped with the rubber pad, seal groove 16 is located and the check valve and tee bend are integrated together, the effect of simplifying the vacuum pipeline is realized through the realization, the complexity of optimizing the pipeline is arranged, make the time of reducing the assembly of vacuum pipe 9, and it can also realize the flow direction to the vacuum braking system through the cost to the vacuum braking system, it has been realized.
Referring to fig. 4-6, a cavity is cut at the inner end of the circular diaphragm 9, polyurethane fiber 15 is filled at the inner end of the cavity, the polyurethane fiber 15 has good rebound resilience, when the vacuum degree at the upper part of the check valve is smaller than the internal vacuum degree, the polyurethane fiber 15 can enable the circular diaphragm 9 to rebound in time, so that gas is not easy to flow back, the use effect of the check valve is improved, a spherical annular groove 17 is cut at the inner top end of the sealing groove 16, a double-layer sealing ring 18 is arranged at the inner end of the spherical annular groove 17, the double-layer sealing ring 18 is made of silicon rubber, the silicon rubber has good low temperature resistance and high temperature resistance, the double-layer sealing ring 18 can be normally used at-55 ℃ to 180 ℃, the diameter of the double-layer sealing ring 18 is larger than the distance at the notch of the spherical annular groove 17, the double-layer sealing ring 18 cannot fall out from the spherical annular groove 17, an elliptical ring 19 is placed at the inner end of the double-layer sealing ring 18, the elliptical ring 19 is filled with a high rebound sponge 5, when the upper vacuum degree of the check valve is smaller than the inner vacuum degree, the circular diaphragm 9 is closed under the action of pressure difference to prevent the air flow from passing through, at the moment, the positioning protrusion 11 is just clamped into the sealing groove 16, the tightness is increased, the top end of the positioning protrusion 11 is clamped into the spherical annular groove 17, the double-layer sealing ring 18 is extruded, the double-layer sealing ring 18 extends to the periphery along the direction of the inner elliptical ring 19, the air tightness is increased again, the effect of preventing the air flow from flowing back is enhanced, the high-resilience sponge 5 has good elasticity, the buffer is increased, the double-layer sealing ring 18 and the elliptical ring 19 are protected from being extruded and broken easily, the effect of increasing the air tightness when the upper vacuum degree of the check valve is smaller than the inner vacuum degree can be realized, the air flow is not easy to flow back, and the effect of controlling the fluid flow direction in the vacuum braking auxiliary system is enhanced.
When the vacuum pipe is used, the olive bag type structure 7 can be directly connected with a rubber pipe and connected with an engine, two barb type bamboo joints 6 are respectively connected with a vacuum booster and a vacuum pump through nylon pipes, under the condition that the tightness of the connection of a part and a pipeline is ensured, the pulling-out force and the torsion moment of the rotating-stopping rib structure 3 on the barb type bamboo joints 6 can be ensured to meet the standards, the complexity of the vacuum pipeline can be simplified by integrating a one-way valve and a tee joint together, the arrangement effect of the pipeline is optimized, the assembly time of the vacuum pipe is reduced, the cost is saved, the circular diaphragm 9 is opened under the action of pressure difference when the vacuum degree of the upper part of the one-way valve is larger than the internal vacuum degree, the one-way valve is opened, and the airflow can pass through when the vacuum degree of the upper part of the one-way valve is smaller than the internal vacuum degree, the circular diaphragm 9 is closed under the action of pressure difference, the passage of air flow is prevented, polyurethane fiber 15 has good rebound resilience, circular diaphragm 9 can be promoted to rebound more timely, in the rebound process, positioning boss 11 is just clamped into sealing groove 16, the tightness is increased, the top end of positioning boss 11 can be clamped into spherical annular groove 17, double-layer sealing ring 18 is extruded, double-layer sealing ring 18 is enabled to extend around along the direction of elliptical ring 19 inside double-layer sealing ring 18, air tightness is increased again, the effect of preventing air flow backflow is enhanced, high rebound sponge 5 has good elasticity, buffering is increased, double-layer sealing ring 18 and elliptical ring 19 are protected, the effect of increasing air tightness can be achieved when the upper vacuum degree of a one-way valve is smaller than the internal vacuum degree, the air flow is not easy to flow back, and the fluid flow direction control effect in a vacuum braking auxiliary system is enhanced.
The above; is only a preferred embodiment of the present invention; the scope of the invention is not limited in this respect; any person skilled in the art is within the technical scope of the present disclosure; equivalent substitutions or changes are made according to the technical proposal of the invention and the improved conception thereof; are intended to be encompassed within the scope of the present invention.
Claims (7)
1. The utility model provides an integrated check valve of biasing tee bend, includes casing (1) and plastics lower casing (2), its characterized in that: the plastic upper shell (1) and the plastic lower shell (2) are welded through ultrasonic waves, the upper end of the plastic upper shell (1) is provided with an olive bag type structure (7), the plastic lower shell (2) comprises a rotation stopping rib structure (3) and two barb type bamboo joints (6), the rotation stopping rib structure (3) is positioned at the outer side of the barb type bamboo joints (6), the rotation stopping rib structure (3) and the barb type bamboo joints (6) are fixedly connected, the two barb type bamboo joints (6) are mutually communicated, the inner end of the plastic lower shell (2) is provided with a circular diaphragm (9), the inner end of the circular diaphragm (9) is provided with a mounting hole (12), the inner end of the plastic lower shell (2) is provided with a positioning column (4), the outer end of the positioning column (4) is provided with a plurality of vent holes (10), the positioning column (4) is sleeved with the circular diaphragm (9) through the mounting hole (12), the circular diaphragm (9) is positioned above the vent holes (10), the lower end of the plastic upper shell (1) is provided with a positioning rib (13), the inner end of the plastic upper shell (9) is provided with a positioning rib (13), the positioning column (13) is fixedly connected with the positioning column (11) and is positioned at the outer end of the circular diaphragm (9) and is fixedly connected with the positioning column (11), the lower end of the circular diaphragm (9) is provided with a sealing groove (16), the sealing groove (16) is matched with the top end of the positioning protrusion (11), a rubber pad is adhered to the inner wall of the sealing groove (16), and the sealing groove (16) is positioned right above the positioning protrusion (11);
the top has excavated spherical annular (17) in seal groove (16), spherical annular (17) inner is equipped with double-deck sealing ring (18), oval ring (19) have been placed to double-deck sealing ring (18) inner, oval ring (19) inner is filled has high resilience sponge (5), mounting hole (12) inner wall cover is equipped with rubber lantern ring (14), rubber lantern ring (14) and reference column (4) assorted, and rubber lantern ring (14) are contacted with reference column (4).
2. The biased three-way integrated check valve of claim 1, wherein: the lower end of the plastic upper shell (1) is a cylindrical surface, the upper end of the plastic lower shell (2) is a conical surface, and the lower end of the plastic upper shell (1) and the upper end of the plastic lower shell (2) are mutually assembled and contacted.
3. The biased three-way integrated check valve of claim 1, wherein: the lower end of the plastic upper shell (1) is provided with a groove (8), and the groove (8) is positioned above the contact point of the plastic upper shell (1) and the plastic lower shell (2).
4. The biased three-way integrated check valve of claim 1, wherein: the inner end of the circular diaphragm (9) is provided with a cavity, and the inner end of the cavity is filled with polyurethane fibers (15).
5. The biased three-way integrated check valve of claim 1, wherein: the diameter of the double-layer sealing ring (18) is larger than the distance at the notch of the spherical annular groove (17).
6. The biased three-way integrated check valve of claim 1, wherein: the double-layer sealing ring (18) is made of silicon rubber.
7. The biased three-way integrated check valve of claim 1, wherein: the included angle between the two barb type bamboo joints (6) is ninety degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811002931.XA CN109094548B (en) | 2018-08-30 | 2018-08-30 | Bias three-way integrated check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811002931.XA CN109094548B (en) | 2018-08-30 | 2018-08-30 | Bias three-way integrated check valve |
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| Publication Number | Publication Date |
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| CN109094548A CN109094548A (en) | 2018-12-28 |
| CN109094548B true CN109094548B (en) | 2023-08-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811002931.XA Active CN109094548B (en) | 2018-08-30 | 2018-08-30 | Bias three-way integrated check valve |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101392667A (en) * | 2008-10-30 | 2009-03-25 | 杨柳 | Engine braking apparatus and method using single valve and bridge of valve |
| CN201941758U (en) * | 2010-12-17 | 2011-08-24 | 李彦波 | Pressure-regulating three-way valve, assisted relay valve and brake pipeline system thereof |
| DE102013100541A1 (en) * | 2013-01-18 | 2014-07-24 | Haldex Brake Products Gmbh | Valve device for a compressed air system of a trailer of a commercial vehicle |
| CN204077646U (en) * | 2014-09-23 | 2015-01-07 | 安徽江淮汽车股份有限公司 | A kind of vacuum-assisted check valve |
| CN204355034U (en) * | 2014-12-12 | 2015-05-27 | 河北亚大汽车塑料制品有限公司 | A kind of three-way device of vacuum line and automobile brake parts |
-
2018
- 2018-08-30 CN CN201811002931.XA patent/CN109094548B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101392667A (en) * | 2008-10-30 | 2009-03-25 | 杨柳 | Engine braking apparatus and method using single valve and bridge of valve |
| CN201941758U (en) * | 2010-12-17 | 2011-08-24 | 李彦波 | Pressure-regulating three-way valve, assisted relay valve and brake pipeline system thereof |
| DE102013100541A1 (en) * | 2013-01-18 | 2014-07-24 | Haldex Brake Products Gmbh | Valve device for a compressed air system of a trailer of a commercial vehicle |
| CN204077646U (en) * | 2014-09-23 | 2015-01-07 | 安徽江淮汽车股份有限公司 | A kind of vacuum-assisted check valve |
| CN204355034U (en) * | 2014-12-12 | 2015-05-27 | 河北亚大汽车塑料制品有限公司 | A kind of three-way device of vacuum line and automobile brake parts |
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| CN109094548A (en) | 2018-12-28 |
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