CN107289165B - Splash-proof oleophobic breathable balance valve applied to sealed oil tank - Google Patents
Splash-proof oleophobic breathable balance valve applied to sealed oil tank Download PDFInfo
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- CN107289165B CN107289165B CN201710621770.1A CN201710621770A CN107289165B CN 107289165 B CN107289165 B CN 107289165B CN 201710621770 A CN201710621770 A CN 201710621770A CN 107289165 B CN107289165 B CN 107289165B
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- oleophobic
- proof
- splash
- oil
- main body
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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
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/18—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on either side
- F16K17/19—Equalising valves predominantly for tanks
Abstract
The invention discloses a splash-proof oleophobic breathable balance valve applied to a sealed oil tank, which comprises a splash-proof oleophobic main body, a splash-proof oleophobic gland and an oil-proof breathable film, wherein a straight-through air hole is formed in the middle of the splash-proof oleophobic main body, the splash-proof oleophobic oil pressure cover is pressed on one end of the splash-proof oleophobic main body, the oil-proof breathable film is arranged in the straight-through air hole, a gland air hole is formed in the splash-proof oleophobic oil pressure cover, a filter block is arranged in the straight-through air hole at the other end of the splash-proof oleophobic main body, backflow breathable gas is arranged between the filter block and the oil-proof breathable film, the backflow breathable gas is in a funnel shape, a big port of the backflow breathable gas is arranged towards the direction of the splash-proof oleophobic oil pressure cover, and a vent hole for circulating gas is formed in the backflow breathable gas. The splash-proof oleophobic breathable balance valve applied to the sealed oil tank has the advantages of simple structure, low cost, good oil-proof performance, good tightness, convenience in use and the like.
Description
Technical Field
The invention relates to the technical field of balance valves, in particular to a splash-proof oleophobic breathable balance valve applied to a sealed oil tank.
Background
At present, a balance valve is usually adopted on an oil tank of a motor vehicle to balance the air pressure difference inside and outside the oil tank, the common balance valve generally comprises a main body, a gland and a breathable film, a through air hole is formed in the main body, the gland is pressed at one end of the main body, the breathable film is arranged in the through air hole in the main body, the structure of the balance valve is simple, the air pressure balance inside and outside the oil tank can be realized, however, due to the fact that some jolt often occurs in the use process of the motor vehicle, oil in the oil tank can easily flow into the through air hole in the main body directly, and due to the fact that the structure of blocking the oil in the balance valve does not exist, the breathable film is generally a common breathable film, the oil resistance of the common breathable film is poor, the oil can easily permeate the breathable film, oil leakage and oil seepage phenomena can easily occur, and the performance of the balance valve is affected.
Disclosure of Invention
The invention provides the splash-proof oleophobic breathable balance valve applied to the sealed oil tank, which has the advantages of simple structure, low cost, good oil resistance, good sealing performance and convenient use.
The invention can be realized by the following technical scheme:
the utility model provides a be applied to anti-splash oleophobic ventilative balanced valve of sealed oil tank, includes anti-splash oleophobic main part, anti-splash oleophobic gland and grease proofing ventilated membrane, anti-splash oleophobic main part middle part is equipped with the through gas pocket, anti-splash oleophobic oil pressure lid pressfitting is on the one end of anti-splash oleophobic main part, grease proofing ventilated membrane sets up in the through gas pocket, the anti-splash oleophobic oil pressure is covered and is equipped with the gland bleeder vent, be equipped with the filter block in the through gas pocket of the anti-splash oleophobic main part other end, be equipped with the back flow ventilation body between filter block and the grease proofing ventilated membrane, the back flow ventilation body is the funnel form, and its big port orientation anti-splash oleophobic oil pressure lid direction sets up, be equipped with the air vent that is used for the circulation gas on the back flow ventilation body. The invention relates to an anti-splashing oleophobic breathable balance valve applied to a sealed oil tank, which mainly comprises an anti-splashing oleophobic main body, an anti-splashing oleophobic gland, an anti-splashing breathable film, a filter block and a backflow breathable body, and has the advantages of fewer component parts and simple structure; the anti-splash oleophobic main body, the anti-splash oleophobic gland, the filter block and the backflow ventilation air can be made of common metal materials, the source is rich, the cost is low, the oil-proof ventilation air film can be made of common oil-proof waterproof ventilation air films, and the oil-proof waterproof ventilation air films are conventional parts and are low in cost. According to the invention, through the through air holes of the splash-proof oleophobic main body and the gland air holes of the splash-proof oleophobic gland, the circulation and exchange of air are realized, and the air pressure balance inside and outside the oil tank is kept; the filter block is internally provided with a plurality of filter holes, and the filter holes can prevent most of oil from entering the through air holes but not blocking the circulation of gas, so that the filter block can prevent most of oil from entering the splash-proof oleophobic main body but not affecting the circulation of gas; the backflow ventilation membrane is in a funnel shape, so that part of oil entering the through air holes can flow back along the inclined side surface of the backflow ventilation membrane, oil is prevented from penetrating into the oil-proof ventilation membrane, and the oil-proof ventilation membrane is protected; the arrangement of the vent holes can be used for gas circulation, and the gas can pass through the filter holes of the filter blocks in the through vent holes, the vent holes for backflow ventilation, the oil-proof ventilation membrane and the gland vent holes on the splash-proof oil-repellent pressure cover to realize gas circulation inside and outside the oil tank.
Further, the shape of the filter block is matched with the through air holes in the splash-proof oleophobic main body, and the filter block is in interference fit with the through air holes. The filter block is tightly matched in the through air hole through the shape adaptability of the filter block and the through air hole and the interference fit connection of the filter block and the through air hole, so that the filter block is prevented from falling off due to vibration of the oil tank; on the other hand, the filter block and the splash-proof oleophobic main body can realize tight fit sealing, and oil is prevented from entering the through air hole from a gap at the matching edge of the filter block and the splash-proof oleophobic main body.
Further, the large port edge of the backflow ventilation is provided with a connecting flange, and the connecting flange is pressed into the splash-proof oleophobic main body in an interference mode. The setting of flange can make things convenient for the gaseous installation of refluence, makes the ventilative body that flows backward can the interference sticis in the splashproof oleophobic main part, realizes the tight fit sealed effect between the ventilative body that flows backward and the splashproof oleophobic main part, when preventing the gaseous not hard up of flowing backward and dropping, also can prevent that fluid from being through on the infiltration of grease proofing ventilated membrane.
Further, the vent holes are provided in the reverse flow gas-permeable side wall and are adjacent to the connection flange. The vent holes are arranged on the side wall close to the connecting flange, so that the ventilation of gas can be realized, and meanwhile, oil can be prevented from entering the vent holes.
Further, the connection mode between the oil-proof breathable film and the oil-proof main body is glue bonding, soft glue sealing and laminating mode, ultrasonic welding, vibration friction welding or hot melting integrated laminating.
Further, the balance valve further comprises a first sealing ring and a second sealing ring, wherein the first sealing ring is arranged between the splash-proof oleophobic gland and the oil-proof breathable film, and the second sealing ring is pressed in a sealing ring groove outside the splash-proof oleophobic main body. The first sealing ring is arranged to realize the structural design of the sealing effect between the splash-proof oleophobic cover and the splash-proof oleophobic main body, so that the air tightness inside the splash-proof oleophobic main body is effectively ensured; the arrangement of the second sealing ring can realize the sealing structure design between the balance valve and the oil tank, and effectively ensures the air tightness between the balance valve and the oil tank.
Further, the outside of splashproof oleophobic main part still is equipped with the external screw thread of being connected with the oil tank, the external screw thread is located between the one end tip that second sealing washer and splashproof oleophobic main part were equipped with the filter block. The external thread can facilitate the connection between the invention and the oil tank, and is convenient for the use of the utility model.
The invention is applied to the splash-proof oleophobic breathable balance valve of the sealed oil tank, and has the following beneficial effects:
the splash-proof oleophobic breathable balance valve applied to the sealed oil tank mainly comprises a splash-proof oleophobic main body, a splash-proof oleophobic gland, an oil-proof breathable film, a filter block and a backflow breathable gas, and is few in component parts and simple in structure;
secondly, the cost is low, the anti-splashing oleophobic main body, the anti-splashing oleophobic gland, the filter block and the backflow breathable gas can be made of common metal materials, the sources are rich, the cost is low, the oil-proofing and waterproof breathable film can be common oil-proofing and waterproof breathable film, and the oil-proofing and waterproof breathable film is a common part and has low cost;
the anti-splash oleophobic ventilation balance valve is used for sealing the oil tank, most of oil can be prevented from entering the through air holes of the anti-splash oleophobic main body by the aid of the filter blocks, less oil entering the through air holes can flow back into the overflow block along the inclined side surfaces of the backflow ventilation air and flow back into the oil tank by the aid of the backflow ventilation air, double oil resistance can be achieved by the aid of the filter blocks and the backflow ventilation air, oil can be effectively prevented from penetrating into the oil-proof ventilation film, and oil leakage is avoided;
fourth, leakproofness is good, the balance valve is still including first sealing washer and second sealing washer, first sealing washer sets up between splashproof oleophobic gland and grease proofing ventilated membrane, the second sealing washer pressfitting is in the outside sealing washer groove of splashproof oleophobic main part. The first sealing ring is arranged to realize the structural design of the sealing effect between the splash-proof oleophobic cover and the splash-proof oleophobic main body, so that the air tightness inside the splash-proof oleophobic main body is effectively ensured; the arrangement of the second sealing ring can realize the sealing structure design between the balance valve and the oil tank, so that the air tightness between the balance valve and the oil tank is effectively ensured;
fifthly, the anti-splash and oleophobic device is convenient to use, external threads connected with the oil tank are further arranged outside the anti-splash and oleophobic main body, and the external threads are located between the second sealing ring and one end part of the anti-splash and oleophobic main body, which is provided with the filter block; the external thread can facilitate the connection between the invention and the oil tank, and is convenient for the use of the utility model.
Drawings
FIG. 1 is an exploded schematic view of a splash, oleophobic and air permeable balance valve of the present invention applied to a sealed tank;
FIG. 2 is a schematic structural assembly view of the splashproof oleophobic breathable balance valve of the present invention applied to a sealed tank;
FIG. 3 is a sectional view S-S of FIG. 2;
FIG. 4 is an S-S cross-sectional view of the splash and oleophobic body of FIG. 2.
Detailed Description
In order to make the technical solution of the present invention better understood by those skilled in the art, the following further details of the present invention will be described with reference to examples and drawings.
As shown in fig. 1 to 4, a splash-proof oleophobic breathable balance valve applied to a sealed oil tank comprises a splash-proof oleophobic main body 1, a splash-proof oleophobic gland 2 and a splash-proof breathable film 5. The splash-proof oleophobic main body 1 is cylindrical, the inside of the splash-proof oleophobic main body is hollow, and a hollow channel is a through air hole 11; the outer side surface of the splash-proof oleophobic main body 1 is divided into a connecting part and an exposed part, an external thread 13 in threaded connection with an oil tank is arranged on the connecting part, a sealing ring groove 12 is arranged between the connecting part and the exposed part of the splash-proof oleophobic main body 1, and a second sealing ring 7 is pressed in the sealing ring groove 12. A first shoulder 14 and a second shoulder 15 are further arranged in the through air hole 11 of the splash-proof oleophobic main body 1, the first shoulder 14 is close to the port of the exposed part, and the second shoulder 15 is next to the first shoulder 14.
As shown in fig. 1 to 3, the anti-splash and oleophobic oil pressure cover 2 is pressed on the port of the exposed part of the anti-splash and oleophobic main body 1, and the side edge of the anti-splash and oleophobic oil pressure cover 2 is provided with a gland vent 21. The oil-proof breathable film 5 is arranged in the through air hole 11 and is attached to the first shoulder 14 in a glue bonding mode. A first sealing ring 6 is arranged between the oil-proof breathable film 5 and the oil-proof oil-pressure cover 2.
As shown in fig. 1 to 4, a filter block 3 is arranged in a through air hole 11 on the connecting part of the anti-splash and oleophobic main body 1, the shape of the filter block 3 is matched with the shape of the through air hole 11 on the connecting part of the anti-splash and oleophobic main body 1, and the filter block 3 is pressed into the through air hole 11 on the connecting part of the anti-splash and oleophobic main body 1 in an interference mode. The filter block 3 is equipped with the back flow ventilation body 4 between the grease proofing ventilated membrane 5, the back flow ventilation body 4 is the funnel form, and its big port orientation splashproof oleophobic gland 2 orientation sets up, the big port edge of the gas 4 of back flow is equipped with flange 42, flange 42 interference is impressed in the splashproof oleophobic main part 1 to make flange 42's bottom surface and the contact of second shoulder 15 face set up, be equipped with the air vent 41 that is used for ventilation gas on the gas 4 of back flow, air vent 41 sets up on the lateral wall of gas 4 of back flow, and is close to flange 42.
As shown in fig. 1 to 4, under the action of specific components, the invention is applied to a splash-proof oil-repellent air-permeable balance valve for sealing an oil tank, and mainly comprises a splash-proof oil-repellent main body 1, a splash-proof oil-repellent gland 2, an oil-proof air-permeable membrane 5, a filter block 3 and a backflow air-permeable membrane 4, wherein the splash-proof oil-repellent main body 1 is provided with a through air hole 11 in a hollow mode in the middle, and a first shoulder 14 and a second shoulder 15 are arranged in the through air hole 11, and the splash-proof oil-repellent main body 1 is used for facilitating the installation and air circulation of other components in the splash-proof oil-repellent main body 1, and external threads 13 are arranged outside the splash-proof oil-repellent main body 1 and are used for facilitating the threaded connection between the splash-proof oil-repellent air-permeable balance valve and the oil tank, and is convenient for installation and use; the splash-proof oil-repellent pressure cover 2 is provided with a gland vent 21 on the side edge, and the function of the splash-proof oil-repellent pressure cover is to realize the gas circulation in the splash-proof oil-repellent main body 1; a plurality of filtering holes are arranged in the filtering block 3, and can block most of oil molecules from passing through, but can not block the circulation of gas, so that most of oil liquid can be effectively prevented from entering the through air holes 11; the arrangement of the backflow gas-permeable membrane 4 can enable a small part of oil entering the through air holes 11 to flow back into the filter block 3 along the inclined surface and flow back into the oil tank, so that the backflow gas-permeable membrane can be used as a double oil-resistant barrier, oil can be effectively prevented from penetrating into the oil-proof gas-permeable membrane 5, and oil seepage is avoided; the arrangement of the first sealing ring 6 can effectively play the role of air tightness of the splash-proof oleophobic main body 1 and the splash-proof oleophobic gland 2; the second sealing ring 7 can effectively play the role of air tightness between the oil tank and the oil tank after being installed.
As shown in fig. 1 to 4, in the connection mode of structural members, the balance valve of the invention is connected with the oil tank in a threaded connection mode, so that the connection and the use of the invention can be effectively facilitated; the splash-proof oil-repellent cover 2 is connected with the splash-proof oil-repellent main body 1 in a pressing mode, so that the splash-proof oil-repellent cover 2 can be conveniently assembled on the splash-proof oil-repellent main body 1; the oil-proof breathable film 5 is arranged in the oil-proof and oleophobic main body 1 in an adhesive bonding mode, so that on one hand, the oil-proof breathable film 5 can be conveniently assembled under the condition of ensuring air tightness, and on the other hand, the cost generated by adopting the adhesive bonding mode is far lower than the cost generated by adopting other modes, and the production and processing cost of the oil-proof and oleophobic main body is effectively reduced; the filter block 3 and the backflow ventilation gas 4 are arranged in the through air hole 11 in an interference pressing mode, so that the tight fit sealing effect between the filter block 3 and the splash-proof oleophobic main body 1 and the tight fit sealing effect between the backflow ventilation gas 4 and the splash-proof oleophobic main body 1 can be effectively achieved.
As shown in fig. 1 to 4, the invention is applied to the working principle of a splash-proof, oleophobic and breathable balance valve of a sealed oil tank: when the air pressure of the oil tank is greater than the external air pressure, air in the oil tank can enter the through air hole 11 through the filtering holes of the filtering block 3, then flows out of the oil-proof air-permeable membrane 5 after flowing through the air holes 41 of the backflow air-permeable membrane 4, flows out of the oil-proof air-permeable membrane effectively through the gland air holes 21 of the splash-proof oil-pressure cover 2, and then can realize the air circulation inside and outside the oil tank, so that the effect of balancing the air pressure inside and outside the oil tank is achieved. When the air pressure of the oil tank is smaller than the external air pressure, the external air sequentially passes through the gland air holes 21, the oil-proof air-permeable membrane 5, the air holes 41, the through air holes 11 and the filter block 3, so that the circulation of the external air and the air of the oil tank is realized, and the balance of the internal air pressure and the external air pressure of the oil tank is realized.
The above description is only of the preferred embodiments of the present invention, and is not intended to limit the present invention in any way; those skilled in the art will readily appreciate that the present invention may be implemented as shown in the drawings and described above; however, those skilled in the art will appreciate that many modifications, adaptations, and variations of the present invention are possible in light of the above teachings without departing from the scope of the invention; meanwhile, any equivalent changes, modifications and evolution of the above embodiments according to the essential technology of the present invention still fall within the scope of the present invention.
Claims (4)
1. Be applied to ventilative balanced valve of splashproof oleophobic of sealed oil tank, including splashproof oleophobic main part (1), splashproof oleophobic oil pressure lid (2) and grease proofing ventilated membrane (5), splashproof oleophobic main part (1) middle part is equipped with through gas pocket (11), splashproof oleophobic oil pressure lid (2) pressfitting is on the one end of splashproof oleophobic main part (1), grease proofing ventilated membrane (5) set up in through gas pocket (11), its characterized in that: the anti-splash oil-drain pressure cover (2) is provided with a gland vent hole (21), a filter block (3) is arranged in a straight-through vent hole (11) at the other end of the anti-splash oil-drain main body (1), a backflow ventilation gas (4) is arranged between the filter block (3) and the oil-proof ventilation film (5), the backflow ventilation gas (4) is funnel-shaped, a big port of the backflow ventilation gas (4) is arranged towards the direction of the anti-splash oil-drain pressure cover (2), and a vent hole (41) for ventilation gas is arranged on the backflow ventilation gas (4);
the shape of the filter block (3) is matched with a through air hole (11) in the splash-proof oleophobic main body (1), and the filter block (3) is in interference fit with the through air hole (11);
a connecting flange (42) is arranged on the large port edge of the backflow ventilation body (4), and the connecting flange (42) is pressed into the splash-proof oleophobic main body (1) in an interference manner;
the vent holes (41) are arranged on the side wall of the backflow gas (4) and are close to the connecting flange (42).
2. The splashproof oleophobic breathable balance valve for use in a sealed tank of claim 1, wherein: the oil-proof breathable film (5) and the oil-proof and oleophobic main body (1) are connected in a glue bonding mode, a soft glue sealing and bonding mode, ultrasonic welding, vibration friction welding or hot melting integrated bonding mode.
3. The splashproof oleophobic breathable balance valve for use in a sealed tank of claim 1, wherein: the balance valve further comprises a first sealing ring (6) and a second sealing ring (7), wherein the first sealing ring (6) is arranged between the splash-proof oleophobic pressure cover (2) and the oil-proof breathable film (5), and the second sealing ring (7) is pressed in a sealing ring groove (12) outside the splash-proof oleophobic main body (1).
4. A splash, oleophobic and air permeable balancing valve for a sealed tank according to claim 3, characterized in that: the outside of splashproof oleophobic main part (1) still is equipped with external screw thread (13) be connected with the oil tank, external screw thread (13) are located between second sealing washer (7) and the one end tip that splashproof oleophobic main part (1) was equipped with filter block (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710621770.1A CN107289165B (en) | 2017-07-27 | 2017-07-27 | Splash-proof oleophobic breathable balance valve applied to sealed oil tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710621770.1A CN107289165B (en) | 2017-07-27 | 2017-07-27 | Splash-proof oleophobic breathable balance valve applied to sealed oil tank |
Publications (2)
| Publication Number | Publication Date |
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| CN107289165A CN107289165A (en) | 2017-10-24 |
| CN107289165B true CN107289165B (en) | 2023-07-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710621770.1A Active CN107289165B (en) | 2017-07-27 | 2017-07-27 | Splash-proof oleophobic breathable balance valve applied to sealed oil tank |
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| CN (1) | CN107289165B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110319335A (en) * | 2018-03-28 | 2019-10-11 | 常江浩 | A kind of ventilative oil cap of the anti-dust of waterproof |
| CN110345287A (en) * | 2019-06-21 | 2019-10-18 | 惠州市沃瑞科技有限公司 | A kind of novel grease proofing ventilative balanced valve |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2065600B1 (en) * | 2007-11-28 | 2010-06-02 | Magneti Marelli S.p.A. | Hydraulic circuit of a servo-assisted mechanical transmission |
| US20120048871A1 (en) * | 2010-08-30 | 2012-03-01 | Teh-Tsung Chiu | Waterproof and breathable plug |
| JP3185871U (en) * | 2013-06-26 | 2013-09-05 | 群光電能科技股▲ふん▼有限公司 | Waterproof dustproof vent plug |
| CN203670707U (en) * | 2013-11-15 | 2014-06-25 | 西门子机械传动(天津)有限公司 | Waterproof vent plug for speed reducer and speed reducer with same |
| CN203743557U (en) * | 2014-03-22 | 2014-07-30 | 刘向民 | Waterproof ventilation valve |
| CN205207824U (en) * | 2015-11-02 | 2016-05-04 | 宁波通冠电气自动化设备有限公司 | Waterproof ventilation valve of heat dissipation type |
| DE102015221508A1 (en) * | 2015-11-03 | 2017-05-04 | Mahle Industriefiltration Gmbh | Pressure compensator |
| CN207049387U (en) * | 2017-07-27 | 2018-02-27 | 惠州市沃瑞科技有限公司 | A kind of splashproof oleophobic applied to leakproof fuel cell is breathed freely balanced valve |
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2017
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