CN104089058B - A kind of breather plug with seal arrangement - Google Patents
A kind of breather plug with seal arrangement Download PDFInfo
- Publication number
- CN104089058B CN104089058B CN201410252385.0A CN201410252385A CN104089058B CN 104089058 B CN104089058 B CN 104089058B CN 201410252385 A CN201410252385 A CN 201410252385A CN 104089058 B CN104089058 B CN 104089058B
- Authority
- CN
- China
- Prior art keywords
- seal bar
- hollow nut
- seal
- cock body
- ventilation cock
- 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.)
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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
- 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 a kind of breather plug with seal arrangement, comprise helical thread portion and be connected to ventilation cock body on assembled product, and be sleeved on the hollow nut in ventilation cock body; Seal bar is set with in hollow nut; The inner side of hollow nut offers rectangular loop groove, 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.Seal bar by filling hollow nut in the ventilation cock body inner sleeve be connected with assembled product, then is set in hollow nut by the present invention; Gap construction opening snap ring simultaneously between ventilation cock body and hollow nut, slotted collar can clamping stagnation seal bar, and can open when seal bar moves, preventing impurity, while dust enters, also can prevent entering of rainwater and moisture, not adopt spring in breather plug, simultaneously under the impact of car load vibrations, can ensure that gasket seal normally seals, substantially prolongs the life-span of product.
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 operationally all will assemble breather plug, to drain or to reduce the air pressure in casing.Common breather plug, is generally divided into open in usual and Normally closed type, is interlinked to the outside in breather plug open in usual, and there is a dust-proof cover outside, can prevent larger particles from entering, and cannot stop dust, rainwater, little impurity enters.Normally closed type breather plug, adds rubber sheet gasketing and spring, can prevent entering of impurity, dust in common breather plug dust-proof cover, cannot prevent entering of rainwater and moisture.When vehicle is exercised, due to the vibrations of car load, the spring in breather plug stretches freely, cannot ensure 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 relatively more severe, and some vehicle just uses in mining area, and dust is many, and easily cause the Block failure of the component such as speed changer, power take-off, air valve, cylinder, life of product shortens greatly.
Summary of the invention
The object of the invention is to the shortcoming overcoming 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 helical thread portion and be connected to ventilation cock body on assembled product, and is threaded connection the hollow nut in ventilation cock body; Seal bar is set with in hollow nut; The inwall of hollow nut offers rectangular loop groove, be provided with in rectangular loop groove to match with seal bar seal bar in a state of nature time seal, and limit the O RunddichtringO that seal bar deviates from; Ventilation cock body and hollow nut and assembled product are all threaded connection, and the conical surface that the lower end of hollow nut offers spacing plane and matches with slotted collar; The below of ventilation cock body offers the port for being vented, 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 separated, and seal bar top is the polished rod matched with an O RunddichtringO, and bottom circumferentially evenly offers some shaft orientation opening grooves as exhaust passage.
Described seal bar bottom is also provided with the positive stop lug boss of two places higher than seal bar diameter.
Described seal bar in a state of nature time, 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 sealed.
Described slotted collar offers the fluting being convenient to seal bar assembling and movement at circumferencial direction.
Compared with prior art, the present invention has following beneficial effect:
The present invention by installing hollow nut in the ventilation cock body be 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, one O RunddichtringO can match with seal bar, seal down in a state of nature in seal bar, and can prevent seal bar from deviating from; Gap construction opening snap ring simultaneously between ventilation cock body and hollow nut, slotted collar can clamping stagnation seal bar, and can open when seal bar moves, preventing impurity, while dust enters, also can prevent entering of rainwater and moisture, not adopt spring in breather plug, simultaneously under the impact of car load vibrations, can ensure that gasket seal normally seals, substantially prolongs the life-span of product.
Further, seal bar top and the bottom of the present invention are the hollow-core construction separated, and seal bar upper end is provided with the polished rod be sealed and matched, and coordinate with an O RunddichtringO.Lower end edge circumference evenly has a shaft orientation opening groove, it is the passage of exhaust, make simultaneously seal bar to away from ventilation cock body direction move time, seal bar lower end has certain contour projector in radial direction, one O RunddichtringO and slotted collar internal diameter have certain radial enclasping force to seal bar, make seal bar cannot deviate from or depart from original installation position.
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:
See Fig. 1 to Fig. 2, the present invention includes helical thread portion and be connected to ventilation cock body 3 on assembled product, and be threaded connection the hollow nut 2 in ventilation cock body 3; Seal bar 1 is set with in hollow nut 2; The inwall of hollow nut 2 offers rectangular loop groove, be provided with in rectangular loop groove to match with seal bar 1 seal bar 1 in a state of nature time seal, and limit the O RunddichtringO 4 that seal bar 1 deviates from; The upper and lower of seal bar 1 is the hollow-core construction separated, and seal bar 1 top is the polished rod matched with an O RunddichtringO 4, and bottom circumferentially evenly offers some shaft orientation opening grooves as exhaust passage.Seal bar 1 lower side is also provided with the positive stop lug boss of two places higher than seal bar 1 diameter.Seal bar 1 in a state of nature time, 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 conical surface that the lower end of hollow nut 2 offers spacing plane and matches 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 sealed.The below of ventilation cock body 3 offers the port for being vented, 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 at circumferencial direction to be convenient to seal bar 1 and to assemble and the fluting of movement.
Principle of the present invention:
The present invention and common breather plug different, by seal bar 1, hollow nut 2, ventilation cock body the 3, one O RunddichtringO the 4, two O RunddichtringO 5, slotted collar 6 forms.
Seal bar 1 is vital part, and top and the bottom are the hollow-core construction separated, and seal bar 1 upper end is provided with the polished rod be sealed and matched, and coordinates with an O RunddichtringO 4.Lower end edge circumference evenly has 4 shaft orientation opening grooves, be exhaust passage, make simultaneously seal bar 1 to away from ventilation cock body 3 direction move time, seal bar 1 lower end has certain contour projector in radial direction.Seal bar 1 lower end is also provided with the positive stop lug boss of two places higher than 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 inwall has 2 place's rectangular loop grooves and O RunddichtringO is housed, and limits seal bar 1 and deviate from, and hollow nut 2 lower end is provided with the conical surface and spacing plane that coordinate 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.One O RunddichtringO 4 coordinates with seal bar 1, seal bar 1 not on move before seal.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.Be convenient to assembling in order to seal bar 1 and move, 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, before product work or before using, the polished rod of seal bar 1 upper part coordinates with an O RunddichtringO 4, plays seal action.
When seal bar 1 is in sealing state (i.e. reset condition), slotted collar 6 is between two positive stop lug boss of seal bar 1 bottom, one O RunddichtringO 4 and slotted collar 6 internal diameter have certain radial enclasping force to seal bar 1, make seal bar 1 cannot deviate from or depart from original installation position.
Aperture below ventilation cock body 3 communicates with the cabinets cavity of assembling, when casing works 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 greater than the surface friction drag sum of an O RunddichtringO 4 and slotted collar 6 pairs of seal bar 1 generations in the interfacial power of seal bar about 1, seal bar 1 progressively moves up, until O RunddichtringO is crossed at the interfacial fluting position of seal bar about 1, air pressure is discharged by 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 and technological thought of the present invention is described; protection scope of the present invention can not be limited with this; every technological thought proposed according to the present invention, any change that technological scheme basis is done, within the protection domain all falling into claims of the present invention.
Claims (6)
1. with a breather plug for seal arrangement, it is characterized in that: comprise helical thread portion and be connected to ventilation cock body (3) on assembled product, and be threaded connection the hollow nut (2) in ventilation cock body (3); Seal bar (1) is set with in hollow nut (2); The inwall of hollow nut (2) offers rectangular loop groove, be provided with in rectangular loop groove to match with seal bar (1) seal bar (1) in a state of nature time seal, and limit the O RunddichtringO (4) that seal bar (1) deviates from; Ventilation cock body (3) is all threaded connection with hollow nut (2) and assembled product, and the conical surface that the lower end of hollow nut (2) offers spacing plane and matches with slotted collar (6); The below of ventilation cock body (3) offers the port for being vented, 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 separated, seal bar (1) top is the polished rod matched with an O RunddichtringO (4), and bottom 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 the positive stop lug boss of two places higher than seal bar (1) diameter.
4. the breather plug with seal arrangement according to claim 3, it is characterized in that: described seal bar (1) in a state of nature time, 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. the breather plug with seal arrangement according to claim 1,3 or 4, 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) sealed.
6. the breather plug with seal arrangement according to claim 1,3 or 4, is characterized in that: described slotted collar 6 offers the fluting being convenient to seal bar (1) assembling and movement 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 CN104089058A (en) | 2014-10-08 |
| CN104089058B true 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) |
Families Citing this family (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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104089058A (en) | 2014-10-08 |
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