KR101664717B1 - Quick release type air breather - Google Patents

Quick release type air breather Download PDF

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Publication number
KR101664717B1
KR101664717B1 KR1020150093354A KR20150093354A KR101664717B1 KR 101664717 B1 KR101664717 B1 KR 101664717B1 KR 1020150093354 A KR1020150093354 A KR 1020150093354A KR 20150093354 A KR20150093354 A KR 20150093354A KR 101664717 B1 KR101664717 B1 KR 101664717B1
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KR
South Korea
Prior art keywords
connector
housing
rubber seal
breather
eccentric
Prior art date
Application number
KR1020150093354A
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Korean (ko)
Inventor
정상민
이시목
Original Assignee
주식회사평화발레오
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Priority to KR1020150093354A priority Critical patent/KR101664717B1/en
Application granted granted Critical
Publication of KR101664717B1 publication Critical patent/KR101664717B1/en

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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
    • 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
    • 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
    • F16H57/021—Shaft support structures, e.g. partition walls, bearing eyes, casing walls or covers with bearings
    • F16H57/022—Adjustment of gear shafts or bearings
    • F16H2057/0222—Lateral adjustment
    • F16H2057/0224—Lateral adjustment using eccentric bushes

Abstract

The present invention is characterized in that an eccentric passage is formed inside a rubber seal which regulates traffic between a breeding channel of a housing and a breather hole of a connector, thereby making it possible to perform a simple and quick breeding operation by only adjusting the rotation angle of a connector by one hand Disclosed is a release type air breather.
The air breather includes a housing 10 defining a bridging flow path 12 therein, a breather hole 12 which is rotatably installed in the housing space 14 of the housing 10 and is capable of communicating with the bridging flow path 12 A lock mechanism provided between the housing and the connector to allow only the axial rotation of the connector with respect to the accommodation space; And a rubber seal 30 which rotates integrally with the breeding passage 12 and regulates the opening and closing of the bridging flow passage 12. The rubber seal 30 is disposed between the breeding passage 12 and the breather hole 23, Eccentric holes 30a are formed.

Figure R1020150093354

Description

[0001] The present invention relates to a quick release type air breather,

The present invention relates to a quick release type air breather, and more particularly, to a quick release type air breather which is assembled to be rotatable with respect to the breather housing and which is capable of adjusting the communication between the breeding passage and the breather hole with a connector having a rubber seal forming an eccentric passage therein To a quick release type air breather which can perform the breeding operation more easily by only adjusting the rotation angle by one hand.

Generally, an air breather corresponds to a part that must be provided in an apparatus for storing oil corresponding to a working fluid in a state where a certain space is formed inside a case, such as a transmission, a reducer, and an axle housing. That is, when air bubbles are generated in the oil due to the heat accompanying the operation of the component and a positive pressure higher than the atmospheric pressure is generated in the case or a negative pressure is generated in the case due to the temperature drop of the working fluid, The function of compensating the pressure change inside the case due to the change of the temperature and the pressure through the traffic is compensated to a certain level so that the normal operation of the device can be guaranteed.

Such an air breather can be largely divided into a screw type and a quick release type according to a fastening method of a connector that can be selectively assembled into a breather housing and perform a selective breeding operation.

First, in the conventional screw type air breather, the connection between the housing and the connector is a screw connection, and the breather hole penetrates through the connector. In the breeding operation, the connector must be fastened and separated using a hand tool .

As a result, in the conventional screw type air breather, the hand tool must be used every time in a series of processes in which the connector screwed to the housing is repeatedly loosened and tightened in order to perform the bridging operation.

The conventional quick release type air breather has a structure in which a connector detachably assembled to the housing is fixed via a supporting means such as a clip. When a clip for fixing the connector is pressed each time during the breeding operation, To the outside.

Accordingly, in the conventional quick release type air breather, the operator has to use both hands in order to carry out the breeding work, and in particular, when the connector is installed at the position where the work space is narrow, the breeding work can not be smoothly performed Causing a fatal problem.

Korean Patent Application No. 10-2002-0025563, an airbending device of an automobile

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and it is an object of the present invention to provide an eccentric passage in a rubber seal for controlling traffic between a breeding passage of a housing and a breather hole of a connector, The present invention is directed to a quick release type air breather which can perform a simple and quick breeding operation only by the use of a quick release type air breather.

In order to accomplish the above object, according to the present invention, there is provided a connector including a housing defining a bridging flow path therein, a connector rotatably installed in a housing space of the housing and having a breather hole communicable with the bridging flow path, And a rubber seal which is integrally rotated with the connector and regulates the opening and closing of the bridging flow passage, the rubber seal being provided in the housing, And an eccentric hole for allowing communication between the breather holes is formed.

According to an embodiment of the present invention, the housing may have a locking surface protruding axially toward the connector to limit a rotation angle of the connector, and the connector may form a locking protrusion protruding toward the locking surface .

In the present invention, the latching support surface is formed at a phase angle of 180 degrees with respect to the axial center of the housing, and the latching protruding portion is formed at a single location with respect to the connector.

In the present invention, the connector may be provided with an assembling protrusion protruding in the axial direction to restrict axial rotation of the rubber seal, and the rubber seal may form an insertion groove corresponding to the assembling protrusion .

In the present invention, the connector is characterized in that a step projection portion having a stepped groove is formed on the outer peripheral surface for assembling with the rubber seal.

In the present invention, the connector is integrally formed with a grip portion protruding outwardly for rotation operation on a portion opposed to the step protrusion portion, and the engagement protrusion portion is formed in the axial direction on the outer peripheral surface of the grip portion .

In the present invention, the lock mechanism portion may include a plurality of through slots cut along the circumferential direction of the housing, a support groove formed along a circumferential direction of the connector at a position corresponding to the through slot, And a clip which is inserted into the support groove and closely attached to the outer circumferential surface of the support groove.

In the present invention, the eccentric hole of the rubber seal is formed in a tapered structure eccentric from the axial center of the breather hole toward the outlet of the bridging flow passage.

In the present invention, the connector is eccentric with the axial center of the breather hole and forms an eccentric passage which can communicate with the outlet of the bridging flow passage.

The quick release type air breather according to the present invention is characterized in that an eccentric passage is formed in a rubber seal which is connected to a connector to control the communication between the breeding passage of the breather housing and the breather hole of the connector, It is possible to more easily control the opening and closing of the bleeding passage by only adjusting the rotation angle.

That is, the quick release type air breather according to the present invention forms an eccentric passage with the outlet of the bleeding passage inside the rubber seal rotating integrally with the connector assembled in the housing space of the breather housing so as to be rotatable about axis, The rotation angle of the connector relative to the housing can be slightly changed with only one hand to allow or cut off the traffic between the breeding channel and the breather hole, thereby providing the convenience of performing the breeding operation in a shorter time.

In addition, the present invention relates to a connector structure of a connector assembled in a breather housing for a bleeding operation through the application of a rubber seal having an eccentric passage in close contact with an outlet of a bridging flow passage at the free end of the connector, It is possible to change the structure to allow axial rotation only and limit axial movement. Therefore, it is not necessary to consider the moving stroke of the connector at all, thereby providing the effect of smoothly performing the breeding operation even in a narrow space.

Further, since the opening and closing operation of the connector with respect to the breather housing can be realized by the adjustment of the rotation angle, the bridging operation can be easily implemented by only one operation by one hand of the operator without using a specific tool. It is possible to greatly reduce the time required.

1 is a perspective view showing a quick release type air breather according to an embodiment of the present invention.
2 is an exploded perspective view showing main components of a quick release type air breather according to an embodiment of the present invention.
3 is an exploded perspective view showing the main constituent parts of the quick release type air breather according to the embodiment of the present invention in another direction.
4 is a cross-sectional view showing main components of a quick release type air breather according to an embodiment of the present invention.
5 is a perspective view showing an operation state of a quick release type air breather according to an embodiment of the present invention at the time of bleeding.
6 is a cross-sectional view showing the internal state of the air breather in the breeding operation shown in FIG.
7 is a cross-sectional view illustrating main components of a quick release type air breather according to another embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a perspective view showing a quick release type air breather according to an embodiment of the present invention, FIG. 2 is an exploded perspective view showing main components of a quick release type air breather according to an embodiment of the present invention, 4 is an exploded perspective view showing main components of a quick release type air breather according to an embodiment of the present invention, and FIG. 4 is a cross-sectional view showing main components of a quick release type air breather according to an embodiment of the present invention .

Referring to FIGS. 1 to 4, a quick release type air breather according to the present invention includes a housing 10 in communication with a case (not shown) storing a working fluid, A rubber seal 30 for regulating opening and closing between the housing and the connector 20 and a rubber seal 30 for sealing the connector 20 between the housing 10 and the connector 20. [ And a lock mechanism for restricting the axial movement instead of allowing only the axial rotation of the rotor 20.

The housing 10 is formed to be able to communicate with the inside of the case storing the working fluid through the bridging flow path 12. The housing 10 has a hollow accommodation space 14 for assembly with the connector 30 at one free end thereof ). In this case, the accommodating space 14 is configured to support the connector 20 in a rotatable state therein, and to prevent the axial displacement of the connector 20.

To this end, the housing 10 is provided at its one side with an outlet 13 for allowing the bridging flow path 12 and the accommodation space 14 to communicate with each other. The outlet 13 is longly cut along the circumferential direction on the outer circumference, And an engaging support surface 18 protruding axially toward the connector 20 at one free end portion corresponding to an inlet of the accommodating space 14 .

In this case, the outlet 13 is formed to be eccentric with the breather hole 23 described later. The through slots 16 penetrate the material along the same circumferential direction at at least two locations on the outer circumferential surface of the housing 10 for installing the clips 40 to be described later, Is formed in a possible form.

The engaging support surface 18 may be formed on the connector 20 so as to restrict a rotation angle of the connector 20 inserted in the receiving space 14 of the housing 10 in the axial direction. And is separately provided at a position at which a phase angle of 180 degrees with respect to the axial center of the housing 10 is provided. However, the phase angle between them may be set to any angle as long as the engagement surface 18 can restrict the rotation angle of the shaft of the connector 20 with respect to the housing 10.

The connector 20 is assembled to be rotatable in the housing space 14 of the housing 10 to allow or block a traffic state between the housing 10 and the bridging flow path 12 of the housing 10 . To this end, the connector 20 is formed as a solid body and is configured to be inserted into the housing space 14 of the housing 10 and assembled to be rotatable about its axis.

The connector 20 includes a grip portion 21 protruding outward at one free end thereof and a breather body 22 protruding outward at a formation portion of the grip portion 21, A breather hole (23) capable of communicating with the bridging flow path (12) of the housing (10) is formed in the body (22). In this case, the grip portion 21 is formed as a polygonal protrusion so as to hold the connector 20 without a hand tool.

The connector 20 has an eccentric passage (not shown) passing through along the axial direction of the workpiece at a position eccentric to the axial center of the breather hole 23 for communication with the eccentric hole 30a of the rubber seal 30 And a protrusion protruding portion 24 protruding outwardly from the grip portion 21 and capable of restricting the rotation angle of the connector 20 with respect to the housing 10 is formed, At least one assembling protrusion 25 protruding in the axial direction is formed in order to restrict axial rotation of the seal 30 and a stepped groove 27 is formed on the outer circumferential surface for rigid assembly with the rubber seal 30, So that the protruding portion 26 is formed.

In this case, the eccentric passage 23a is configured to be able to communicate with the outside via the breather hole 23. The engaging protrusion 24 protrudes in the axial direction so as to be contactable at a position facing the engaging face 18 of the housing 10. [ The assembly protrusions 25 are formed to protrude axially from both sides of the connector 20 in order to restrict axial rotation of the rubber seal 30 and are inserted into the insertion groove 32 So that the rubber seal 30 can rotate integrally with the connector 20.

The step protrusion 26 and the stepped groove 27 are formed in a shape of irregularities along the circumferential direction for rigid axial assembly with the rubber seal 30. That is, the connector 20 has a stepped groove 27 formed at the free end thereof for stable engagement with the rubber seal 30, and the stepped groove 27 is formed at the free end of the connector 20 The protruding portion 26 has a smaller diameter than the protruding portion 26 and is inserted into the rubber seal 30 to maintain a stable engagement state.

The connector 20 is formed with a support groove 28 at a position corresponding to the through slot 16 of the housing 10. The support groove 28 is formed in the circumferential direction of the connector 20 And is formed in a concave pine shape.

The rubber seal 30 has a cylindrical shape and is coupled to one free end of the connector 20 so as to be integrally rotated. The rubber seal 30 forms an eccentric hole 30a for communication between the outlet 13 of the bridging flow passage 12 and the breather hole 23 of the connector 20. That is, the rubber seal 30 is installed to rotate integrally with the connector 20. The opening and closing of the bridging flow path 12 with respect to the outlet 13 is controlled by the rotation of the connector 20 during the bridging operation.

The rubber seal 30 is formed with an insertion groove 32 at a position corresponding to the assembling protrusion 25 so as to firmly assemble the connector 20 with the rubber seal 30, The protrusions 32 of the connector 20 and the assembling protrusions 25 of the connector 20 may be provided at a plurality of positions radially spaced apart from the center of the respective axes or may be provided at corresponding positions in a single quantity.

The rubber seal 30 is integrally formed with a sealing protrusion 34 along the entire circumference of the outer circumferential surface of the rubber seal 30 in order to improve the adhesion of the connector 20 to the inner circumferential surface of the accommodation space 14. In this case, the sealing protrusion 34 may be embodied as an alternative to the outer circumferential surface of the rubber seal 30, such as an O-ring. 7 and 8, the eccentric hole 30a of the rubber seal 30 extends from the axial center of the breather hole 23 toward the outlet 13 of the bridging flow path 12, Or may be formed in an eccentric tapered structure.

The clip 40 is in the form of a resilient fin having a protruding structure divided into two pieces and is inserted into an internal accommodation space 14 through a through slot 16 of the housing 10, So as to restrict axial movement of the connector 20 instead of allowing only axial rotation of the connector 20 with respect to the accommodation space 14 of the housing 10. [

That is, in the embodiment of the present invention, the lock mechanism portion includes a through slot 16 formed at at least two positions cut along the circumferential direction of the housing 10, a position corresponding to the through slot 16 And a clip 40 inserted into the through hole 16 to be in close contact with the outer circumferential surface of the support groove 28 .

The rubber seal 30 is connected to the connector 20 to adjust the communication between the bridging flow passage 12 of the housing 10 and the breather hole 23 of the connector 20, The angle of rotation of the connector 20 with respect to the housing 10 during the breeding operation is set to be as shown in Figs. 5 and 6, respectively, by forming an eccentric hole 30a eccentric to the breather hole 23 inside the housing 10 The communication between the bridging flow path 12 and the eccentric hole 30a, the eccentric path 23a and the breather hole 23 is switched from the permissive state to the disconnection state So that the breeding operation can be performed more easily.

The engagement protrusion 24 of the connector 20 does not rotate any more at a rotation angle of 180 degrees or more by the engagement surface 18 of the housing 10, The opening or closing state of the door can be clearly recognized by confirming only the position of the locking protrusion 24 from the outside.

That is, according to the present invention, the rubber seal 30 is integrally rotated with respect to the connector 20 which is rotatably assembled in the housing space 14 of the housing 10, An eccentric hole 30a which is eccentric with the outlet 13 of the bridging flow path 12 is formed in the inside of the housing 10 so that the rotation angle of the connector 20 relative to the housing 10 during the bridging operation The traffic between the breeding passage 12 and the breather hole 23 can be switched to the permitting state or the disconnection state by slightly turning it while being held by hand so that the breeding operation can be performed in a shorter time do.

Particularly, the present invention is characterized in that the bridging operation is performed by applying the rubber seal 30 having the eccentric hole 30a in contact with the outlet 13 of the bridging flow passage 12 at the free end of the connector 20 It is possible to change the structure of the connector 20 to be assembled to the housing 10 to a structure that permits only the axial rotation but restricts the axial movement instead of the screw fastening by the conventional screw connection, It is not necessary to consider the moving stroke of the brush unit 20 at all, thereby providing an effect of smoothly performing a bridging operation in a narrow space.

In the present invention, the eccentric hole 30a formed in the rubber seal 30 has a structure eccentric from the axial center of the breather hole 23 toward the outlet 13 of the bridging flow path 12, 7 and 8, the baffle hole 23 may be formed in a shape eccentric with the breather hole 23 and may be formed to extend from the axis center of the breather hole 23 toward the outlet 13 of the bridging flow channel 12 It can be realized by an eccentric taper structure. In this case, however, the inner breather hole 23 of the connector 20 is directly or eccentrically eccentric to the outlet 13 of the bridging flow path 12 through the tapered eccentric hole 30a, The eccentric passage 23a which is eccentric to the axial center of the breather hole 23 may not be separately provided in the connector 20 as in the embodiment of the present invention.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be construed as limited to the particular details of the embodiments set forth herein. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention as defined by the appended claims.

10-Housing 12-Bridging Euro
13-Exit 14-Capacity space
16-through slot 18-
20-connector 21-
22-Breather Body 23-Breeder Hall
23a - Eccentric passage 24 -
26-step protrusion 27-step groove
28-support groove 30-rubber seal
30a-eccentric hole 32-insertion groove
34-sealing projection 40-clip

Claims (9)

A housing 10 for forming a bridging flow passage 12 therein;
A connector 20 rotatably installed in the housing space 14 of the housing 10 and having a breather hole 23 communicable with the bridging flow path 12;
A lock mechanism provided between the housing and the connector to allow only the rotation of the connector with respect to the accommodation space; And
And a rubber seal (30) rotating integrally with the connector (20) and regulating the opening and closing of the bridging flow path (12)
Wherein the rubber seal (30) forms an eccentric hole (30a) for allowing communication between the breeding channel (12) and the breather hole (23). The method according to claim 1,
The housing 10 defines a locking surface 18 protruding toward the connector 20 in order to limit the angle of rotation of the connector 20 and the connector 20 has a locking surface 18 (24) projecting toward the rear end of the air breather. The method of claim 2,
Wherein the engaging support surface 18 is formed at a phase angle of 180 degrees with respect to the axial center of the housing 10 and the engaging projection portion 24 is formed at a single position with respect to the connector 20 Quick release type air breather. The method according to claim 1,
The connector 20 forms an assembling protrusion 25 protruding to restrict axial rotation of the rubber seal 30 and the rubber seal 30 is inserted into the insertion recess 25 correspondingly to the assembling protrusion 25, (32). ≪ RTI ID = 0.0 > 31. < / RTI > The method of claim 2,
Characterized in that the connector (20) is provided with a step protrusion (26) having a stepped groove (27) on the outer circumferential surface for assembling with the rubber seal (30). The method of claim 5,
The connector 20 integrally has a grip portion 21 protruding outwardly for rotating operation on a portion opposed to the step projection portion 26. The engagement protrusion portion 24 is formed integrally with the grip portion 21, Is formed in the axial direction on the outer peripheral surface of the air breather. The method according to claim 1,
The locking mechanism includes a plurality of through slots 16 cut along the circumferential direction of the housing 10, a support groove 16 formed along the circumferential direction of the connector 20 at a position corresponding to the through slot 16 And a clip (40) inserted into the through hole (16) through the through hole (16) and brought into close contact with the outer circumferential surface of the support groove (28). The method according to claim 1,
Characterized in that the eccentric hole (30a) of the rubber seal (30) is formed in a tapered structure eccentric from the axial center of the breather hole (23) toward the outlet (13) of the bridging flow path (12) Air breather. The method according to claim 1,
Wherein the connector (20) forms an eccentric passage (23a) eccentric to the axial center of the breather hole (23) and capable of communicating with an outlet (13) of the bridging flow passage (12).
KR1020150093354A 2015-06-30 2015-06-30 Quick release type air breather KR101664717B1 (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020025563A (en) 2000-09-29 2002-04-04 이수창 method for paying insurance money using pre-paid information
KR20110023625A (en) * 2009-08-31 2011-03-08 주식회사평화발레오 Pipe connected to concentric slave cylinder and connector coupled to the pipe
KR101365050B1 (en) * 2012-12-03 2014-02-19 이만근 Difference pressure tester
KR20140029719A (en) * 2012-08-29 2014-03-11 코웨이 주식회사 Connecting structure for pipe
KR20140117976A (en) * 2013-03-27 2014-10-08 주식회사평화발레오 Air bleeding apparatus

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020025563A (en) 2000-09-29 2002-04-04 이수창 method for paying insurance money using pre-paid information
KR20110023625A (en) * 2009-08-31 2011-03-08 주식회사평화발레오 Pipe connected to concentric slave cylinder and connector coupled to the pipe
KR20140029719A (en) * 2012-08-29 2014-03-11 코웨이 주식회사 Connecting structure for pipe
KR101365050B1 (en) * 2012-12-03 2014-02-19 이만근 Difference pressure tester
KR20140117976A (en) * 2013-03-27 2014-10-08 주식회사평화발레오 Air bleeding apparatus

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