CN104089058A - Air breather plug with sealing device - Google Patents
Air breather plug with sealing device Download PDFInfo
- Publication number
- CN104089058A CN104089058A CN201410252385.0A CN201410252385A CN104089058A CN 104089058 A CN104089058 A CN 104089058A CN 201410252385 A CN201410252385 A CN 201410252385A CN 104089058 A CN104089058 A CN 104089058A
- Authority
- CN
- China
- Prior art keywords
- seal bar
- breather plug
- seal
- hollow nut
- cock body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/027—Gearboxes; Mounting gearing therein characterised by means for venting gearboxes, e.g. air breathers
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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
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/029—Gearboxes; Mounting gearing therein characterised by means for sealing the gearboxes, e.g. to improve airtightness
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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
- F16K17/20—Excess-flow valves
- F16K17/34—Excess-flow valves in which the flow-energy of the flowing medium actuates the closing mechanism
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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
- F16K41/00—Spindle sealings
- F16K41/02—Spindle sealings with stuffing-box ; Sealing rings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Self-Closing Valves And Venting Or Aerating Valves (AREA)
Abstract
The invention discloses an air breather plug with a sealing device. The air breather plug comprises an air breather plug body and a hollow screw nut, wherein the air breather plug body is connected with an assembling product through a thread part; the hollow screw nut is internally sleeved with the air breather plug body; a sealing rod is internally sleeved with the hollow screw nut; a rectangular annular groove is formed in the inner side of the hollow screw nut; an opening clamping ring for clamping the sealing rod is mounted in the gap between the air breather plug body and the hollow screw nut; the opening clamping ring can be opened when the sealing rod moves. As the hollow screw nut is internally sleeved with the air breather plug body which is connected with the assembling product, the sealing rod is sleeved with the hollow screw nut, and the opening clamping ring for clamping the sealing rod is mounted in the gap between the air breather plug body and the hollow screw nut and can be opened when the sealing rod moves, impurities and dust can be prevented, and rainwater and moisture can be also prevented; meanwhile as no spring is arranged inside the air breather plug, under the influence of overall vehicle vibration, normal sealing of a sealing gasket is ensured, and the service life of the product is greatly prolonged.
Description
Technical field
The present invention relates to a kind of breather plug with seal arrangement.
Background technique
Mechanical transmission, power take-off, transfer case, vehicle bridge, speed reducer and pneumatic element all will assemble breather plug when work, to drain or to reduce the air pressure in casing.Common breather plug, is generally divided into open in usual and Normally closed type, in breather plug open in usual, is interlinked to the outside, and there is a dust-proof cover outside, can prevent that larger particles from entering, and cannot stop dust, rainwater, little impurity to enter.Normally closed type breather plug has increased rubber sheet gasketing and spring in common breather plug dust-proof cover, can prevent entering of impurity, dust, cannot prevent entering of rainwater and moisture.When vehicle is exercised, due to the vibrations of car load, the spring in breather plug is flexible freely, cannot guarantee that gasket seal normally seals, so impurity, dust, rainwater etc. all cannot protect.
Existing commercial car field, particularly heavily blocks, and the Environmental Conditions of itself is just more severe, and some vehicle just uses in mining area, and dust is many, easily causes the Block failure of the component such as speed changer, power take-off, air valve, cylinder, and life of product shortens greatly.
Summary of the invention
The object of the invention is to overcome the shortcoming of above-mentioned prior art, a kind of breather plug with seal arrangement be provided,
For achieving the above object, the technical solution used in the present invention is: comprise that helical thread portion is connected to the ventilation cock body on assembled product, and be threaded connection the hollow nut in ventilation cock body; In hollow nut, be set with seal bar; The inwall of hollow nut offers rectangular loop groove, and in rectangular loop groove, being provided with matches with seal bar seals in a state of nature time in seal bar, and limits the O RunddichtringO that seal bar is deviate from; Ventilation cock body and hollow nut and assembled product are all threaded connection, and the lower end of the hollow nut conical surface that offers spacing plane and match with slotted collar; The below of ventilation cock body offers the port for exhaust, and the gap between ventilation cock body and hollow nut is provided with the slotted collar for clamping stagnation seal bar, and slotted collar can be opened when seal bar moves.
The upper and lower of described seal bar is respectively the hollow-core construction separating, the polished rod of seal bar top for matching with an O RunddichtringO, and on bottom, edge circumferentially evenly offers some shaft orientation opening grooves as exhaust passage.
Described seal bar bottom is also provided with two places higher than the positive stop lug boss of seal bar diameter.
Described seal bar is in a state of nature time, and slotted collar is between two positive stop lug boss of seal bar bottom; When seal bar is in running order, the positive stop lug boss of seal bar bottom is stuck in the spacing plane of hollow nut.
The orifice chamfer place that described ventilation cock body is connected with hollow nut is provided with the 2nd O RunddichtringO sealing.
Described slotted collar offers and is convenient to seal bar assembling and mobile fluting at circumferencial direction.
Compared with prior art, the present invention has following beneficial effect:
The present invention is by installing hollow nut in the ventilation cock body being connected with assembled product, again seal bar is set in hollow nut, and an O RunddichtringO is set in the inner side of hollow nut, the one O RunddichtringO can match with seal bar, in seal bar, seal down in a state of nature, and can prevent that seal bar from deviating from; Simultaneously at the gap construction opening snap ring of ventilating between cock body and hollow nut, slotted collar can clamping stagnation seal bar, and when moving, seal bar can open, when preventing that impurity, dust from entering, also can prevent entering of rainwater and moisture, in breather plug, not adopt spring simultaneously, under the impact of car load vibrations, can guarantee that gasket seal normally seals, greatly extend the life-span of product.
Further, seal bar of the present invention top and the bottom are the hollow-core construction separating, and seal bar upper end is provided with the polished rod being sealed and matched, and coordinate with an O RunddichtringO.Lower end edge circumferentially evenly has a shaft orientation opening groove, it is the passage of exhaust, make seal bar when moving away from ventilation cock body direction simultaneously, seal bar lower end radially has certain contour projector, the one O RunddichtringO and slotted collar internal diameter have certain radially enclasping force to seal bar, make seal bar cannot deviate from or depart from original mounting point.
Further, slotted collar of the present invention becomes the conical surface with the registration interface designs of hollow nut, is convenient to fixing and spacing.
Further, slotted collar of the present invention offers fluting at circumferencial direction, is convenient to assembling and the movement of seal bar, and meanwhile, seal bar is when mobile, and slotted collar can be opened.
Accompanying drawing explanation
Fig. 1 is seal bar of the present invention structural representation in a state of nature;
Fig. 2 is the in running order structural representation of seal bar of the present invention.
Wherein: 1 is seal bar; 2 is hollow nut; 3 is ventilation cock body; 4 is an O RunddichtringO; 5 is the 2nd O RunddichtringO; 6 is slotted collar.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail:
Referring to Fig. 1 to Fig. 2, the present invention includes helical thread portion and be connected to the ventilation cock body 3 on assembled product, and be threaded connection the hollow nut 2 in ventilation cock body 3; In hollow nut 2, be set with seal bar 1; The inwall of hollow nut 2 offers rectangular loop groove, and in rectangular loop groove, being provided with matches with seal bar 1 seals in a state of nature time in seal bar 1, and limits the O RunddichtringO 4 that seal bar 1 is deviate from; The upper and lower of seal bar 1 is the hollow-core construction separating, the polished rod of seal bar 1 top for matching with an O RunddichtringO 4, and on bottom, edge circumferentially evenly offers some shaft orientation opening grooves as exhaust passage.In seal bar 1 lower side, be also provided with two places higher than the positive stop lug boss of seal bar 1 diameter.Seal bar 1 is in a state of nature time, and slotted collar 6 is between two positive stop lug boss of seal bar 1 bottom; When seal bar 1 is in running order, the positive stop lug boss of seal bar 1 bottom is stuck in the spacing plane of hollow nut 2.Ventilation cock body 3 is all threaded connection with hollow nut 2 and assembled product, and the lower end of hollow nut 2 conical surface that offers spacing plane and match with slotted collar 6.The orifice chamfer place that ventilation cock body 3 is connected with hollow nut 2 is provided with the 2nd O RunddichtringO 5 sealing.The below of ventilation cock body 3 offers the port for exhaust, and the gap between ventilation cock body 3 and hollow nut 2 is provided with the slotted collar 6 for clamping stagnation seal bar 1, and slotted collar 6 can be opened when seal bar 1 moves.Slotted collar 6 offers and is convenient to seal bar 1 assembling and mobile fluting at circumferencial direction.
Principle of the present invention:
The present invention and common breather plug are different, by seal bar 1, and hollow nut 2, ventilation cock body 3, the one O RunddichtringO 4, the two O RunddichtringOs 5, slotted collar 6 forms.
Seal bar 1 is vital part, and top and the bottom are the hollow-core construction separating, and seal bar 1 upper end is provided with the polished rod being sealed and matched, and coordinates with an O RunddichtringO 4.Lower end edge circumferentially evenly has 4 shaft orientation opening grooves, is the passage of exhaust, makes seal bar 1 when moving away from ventilation cock body 3 directions simultaneously, and seal bar 1 lower end radially has certain contour projector.Seal bar 1 lower end is also provided with two places higher than the positive stop lug boss of polished rod diameter, is stuck in the spacing plane of slotted collar 6 and hollow nut 2 when reset condition and working state.
Hollow nut 2 is threaded with ventilation cock body 3, and hollow nut 2 inwalls have 2 place's rectangular loop grooves and O RunddichtringO is housed, and limits seal bar 1 and deviate from, and hollow nut 2 lower ends are provided with the conical surface and the spacing plane coordinating with slotted collar 6.Ventilation cock body 3 is threaded with hollow nut 2 and product, and the 2nd O RunddichtringO 5 is equipped with at the orifice chamfer place of ventilation cock body 3, and there is the port of exhaust below.The one O RunddichtringO 4 coordinates with seal bar 1, before seal bar 1 is moved on not, seals.Slotted collar 6 is assemblied in the gap between hollow nut 2 and ventilation cock body 3, clamping stagnation seal bar 1.Slotted collar 6 becomes the conical surface with the matching design of hollow nut 2, is convenient to fixing and spacing.For seal bar 1, be convenient to assembling and mobile, slotted collar 6 has fluting at circumferencial direction, and when seal bar 1 moves, slotted collar 6 can be opened.
Working procedure of the present invention:
The ventilate helical thread portion of cock body 3 of the present invention is connected on the product of assembling, and before product work or before using, in seal bar 1, the polished rod of part coordinates with an O RunddichtringO 4, plays seal action.
Seal bar 1 is when sealing state (being reset condition), slotted collar 6 is between two positive stop lug boss of seal bar 1 bottom, the one O RunddichtringO 4 and slotted collar 6 internal diameters have certain radially enclasping force to seal bar 1, make seal bar 1 cannot deviate from or depart from original mounting point.
The aperture of ventilation cock body 3 belows communicates with the cabinets cavity of assembling, when casing is worked along with the rising of temperature, inner air pressure also progressively rises, the air pressure of box house upwards heads on seal bar 1, when gas pressure is when the upper and lower interfacial power of seal bar 1 is greater than the surface friction drag sum of an O RunddichtringO 4 and 1 generation of 6 pairs of seal bar of slotted collar, seal bar 1 progressively moves up, until O RunddichtringO is crossed at the upper and lower interfacial fluting of seal bar 1 position, air pressure is by discharging between the fluting of seal bar 1 and the inwall of hollow nut 2, the exhaust passage of breather plug is opened.
When the boss of seal bar 1 bottom is stuck in the spacing plane of hollow nut 2, seal bar 1 no longer moves up.
Above content is only explanation technological thought of the present invention; can not limit protection scope of the present invention with this; every technological thought proposing according to the present invention, any change of doing on technological scheme basis, within all falling into the protection domain of the claims in the present invention book.
Claims (6)
1. with a breather plug for seal arrangement, it is characterized in that: comprise that helical thread portion is connected to the ventilation cock body (3) on assembled product, and be threaded connection the hollow nut (2) in ventilation cock body (3); In hollow nut (2), be set with seal bar (1); The inwall of hollow nut (2) offers rectangular loop groove, in rectangular loop groove, being provided with matches with seal bar (1) seals in a state of nature time in seal bar (1), and limits the O RunddichtringO (4) that seal bar (1) is deviate from; Ventilation cock body (3) is all threaded connection with hollow nut (2) and assembled product, and the lower end of hollow nut (2) conical surface that offers spacing plane and match with slotted collar (6); The below of ventilation cock body (3) offers the port for exhaust, gap between ventilation cock body (3) and hollow nut (2) is provided with the slotted collar (6) for clamping stagnation seal bar (1), and slotted collar (6) can be opened when seal bar (1) is mobile.
2. the breather plug with seal arrangement according to claim 1, it is characterized in that: the upper and lower of described seal bar (1) is respectively the hollow-core construction separating, the polished rod of seal bar (1) top for matching with an O RunddichtringO (4), on bottom, edge circumferentially evenly offers some shaft orientation opening grooves as exhaust passage.
3. the breather plug with seal arrangement according to claim 1, is characterized in that: described seal bar (1) bottom is also provided with two places higher than the positive stop lug boss of seal bar (1) diameter.
4. the breather plug with seal arrangement according to claim 3, is characterized in that: described seal bar (1) is in a state of nature time, and slotted collar (6) is positioned between two positive stop lug boss (7) of seal bar (1) bottom; When seal bar (1) is in running order, the positive stop lug boss (7) of seal bar (1) bottom is stuck in the spacing plane of hollow nut (2).
5. according to the breather plug with seal arrangement described in claim 1,3 or 4, it is characterized in that: the orifice chamfer place that described ventilation cock body (3) is connected with hollow nut (2) is provided with the 2nd O RunddichtringO (5) sealing.
6. according to the breather plug with seal arrangement described in claim 1,3 or 4, it is characterized in that: described slotted collar 6 offers and is convenient to seal bar (1) assembling and mobile fluting at circumferencial direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410252385.0A CN104089058B (en) | 2014-06-09 | 2014-06-09 | A kind of breather plug with seal arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410252385.0A CN104089058B (en) | 2014-06-09 | 2014-06-09 | A kind of breather plug with seal arrangement |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104089058A true CN104089058A (en) | 2014-10-08 |
| CN104089058B CN104089058B (en) | 2016-03-02 |
Family
ID=51636800
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410252385.0A Active CN104089058B (en) | 2014-06-09 | 2014-06-09 | A kind of breather plug with seal arrangement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104089058B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112197948A (en) * | 2020-10-10 | 2021-01-08 | 北京汽车集团越野车有限公司 | Pressure detection device of normally closed breather plug |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60159281U (en) * | 1984-03-30 | 1985-10-23 | アイシン精機株式会社 | Breather device |
| DE4300441C1 (en) * | 1993-01-09 | 1993-12-02 | Inst Maschinenelemente Uni Stu | Ventilation valve for transmission housing - has venting valve set at upper end of oil collecting chamber with drain valve back into housing. |
| DE102006050723A1 (en) * | 2006-10-24 | 2008-05-21 | Klaus Heinrichs | Venting valve for locking screw of transmission i.e. electric motor transmission, has sealing surface provided at body and/or at collar at inner mantle surface, and separate elastic ring sealant for sealing between body and mantle surface |
| CN201416625Y (en) * | 2009-05-11 | 2010-03-03 | 奇瑞汽车股份有限公司 | Novel ventilation plug structure |
| CN102705489A (en) * | 2012-06-13 | 2012-10-03 | 三一重工股份有限公司 | Ventilation plug and vehicle axle with same |
| CN202597658U (en) * | 2012-04-28 | 2012-12-12 | 陕西法士特齿轮有限责任公司 | Waterproof automobile gearbox ventilation plug |
| CN103411008A (en) * | 2013-07-02 | 2013-11-27 | 中国兵器工业集团第七0研究所 | Self-operated two-way ventilation adjusting valve |
| CN203926970U (en) * | 2014-06-09 | 2014-11-05 | 陕西法士特齿轮有限责任公司 | A kind of breather plug with seal arrangement |
-
2014
- 2014-06-09 CN CN201410252385.0A patent/CN104089058B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60159281U (en) * | 1984-03-30 | 1985-10-23 | アイシン精機株式会社 | Breather device |
| DE4300441C1 (en) * | 1993-01-09 | 1993-12-02 | Inst Maschinenelemente Uni Stu | Ventilation valve for transmission housing - has venting valve set at upper end of oil collecting chamber with drain valve back into housing. |
| DE102006050723A1 (en) * | 2006-10-24 | 2008-05-21 | Klaus Heinrichs | Venting valve for locking screw of transmission i.e. electric motor transmission, has sealing surface provided at body and/or at collar at inner mantle surface, and separate elastic ring sealant for sealing between body and mantle surface |
| CN201416625Y (en) * | 2009-05-11 | 2010-03-03 | 奇瑞汽车股份有限公司 | Novel ventilation plug structure |
| CN202597658U (en) * | 2012-04-28 | 2012-12-12 | 陕西法士特齿轮有限责任公司 | Waterproof automobile gearbox ventilation plug |
| CN102705489A (en) * | 2012-06-13 | 2012-10-03 | 三一重工股份有限公司 | Ventilation plug and vehicle axle with same |
| CN103411008A (en) * | 2013-07-02 | 2013-11-27 | 中国兵器工业集团第七0研究所 | Self-operated two-way ventilation adjusting valve |
| CN203926970U (en) * | 2014-06-09 | 2014-11-05 | 陕西法士特齿轮有限责任公司 | A kind of breather plug with seal arrangement |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112197948A (en) * | 2020-10-10 | 2021-01-08 | 北京汽车集团越野车有限公司 | Pressure detection device of normally closed breather plug |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104089058B (en) | 2016-03-02 |
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