CN102635649A - Internal respirable booster - Google Patents
Internal respirable booster Download PDFInfo
- Publication number
- CN102635649A CN102635649A CN2012101216201A CN201210121620A CN102635649A CN 102635649 A CN102635649 A CN 102635649A CN 2012101216201 A CN2012101216201 A CN 2012101216201A CN 201210121620 A CN201210121620 A CN 201210121620A CN 102635649 A CN102635649 A CN 102635649A
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- China
- Prior art keywords
- push rod
- booster
- piston
- end cap
- piston shaft
- 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.)
- Pending
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- 230000029058 respiratory gaseous exchange Effects 0.000 claims description 19
- 239000000945 filler Substances 0.000 claims description 6
- 238000000926 separation method Methods 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 239000004411 aluminium Substances 0.000 claims description 3
- 230000002035 prolonged effect Effects 0.000 abstract description 6
- 239000012535 impurity Substances 0.000 abstract description 5
- 238000004891 communication Methods 0.000 abstract description 2
- 238000007789 sealing Methods 0.000 description 10
- 239000000428 dust Substances 0.000 description 4
- 230000033001 locomotion Effects 0.000 description 4
- 230000032683 aging Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000010186 staining Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Diaphragms And Bellows (AREA)
Abstract
The invention discloses an internal respirable booster. The internal respirable booster is mainly characterized in that a connecting groove (22) connected with an ejector rod is arranged in a shaft body of a piston shaft (16), a swing groove (24) which can enable the position of the ejector rod (1) to swing and has a depth is further arranged in the shaft body, the swing groove (24) and the connecting groove (22) are connected together, the groove diameter of the swing groove (24) is gradually increased like a loudspeaker from inside to outside, and the rod diameter of the ejector rod is smaller than the groove diameter of the connecting groove. As for the internal circulating booster, after a front cavity of the booster becomes a closed cavity, the front cavity is not in direct communication with the outside, so that external impurities are prevented from entering the front cavity, the failure frequency of the booster is reduced, the service life of the booster is prolonged and the performance of a booster assembly is improved.
Description
Technical field
The present invention relates to a kind of improvement invention of automobile-used internal respiration formula booster; What be specifically related to is a kind ofly to become the internal respiration formula booster of totally-enclosed cavity to the booster ante-chamber, particularly be a kind of improvement invention that booster push rod and position, piston shaft joint are changed.
Background technique
In the prior art, look into the Chinese patent database, getting a patent No. is 01225114.3; Name is called the utility model patent of " novel automobile clutch servo device ", and disclose following content: a kind of novel automobile clutch servo device includes valve body, servo-cylinder, control valve and spring; Said valve body is provided with air passageways and filler opening; It is characterized in that said spring is installed in the servo-cylinder, and in said servo-cylinder, be provided with the boosting piston of band power-assisted push rod, said spring contacts with boosting piston; Be provided with the relaying piston in the hydraulic chamber of said valve body, and on the relaying piston, be provided with push rod.The accompanying drawing 2 of this patent also discloses following structure: boosting piston is divided into power-assisted chamber and servo-cylinder with cylinder body, and end cap is installed in the end of servo-cylinder, on end cap, is provided with dust-proof cover.That is to say that the inner chamber of servo-cylinder and dust-proof cover is the open type setting.Thereby the clutch booster of this structure, its servo-cylinder only stop extraneous moisture, impurity to get into servo-cylinder by dust-proof cover.In addition, the aging of dust-proof cover also is potential inefficacy factor, after dust-proof cover is aging, just played not the dust-tight effect at all.In addition, application for a patent for invention number is 201010300228.4, and denomination of invention discloses the chamber that ante-chamber is formed a sealing for the patent application of " internal recycle booster ", though solved above-mentioned problem; But owing to have only connecting groove on the piston shaft, do not supply the swinging chute of push rod swing, therefore must push rod be arranged on the top of piston shaft, when piston outwards moves; Its piston shaft has major part will stretch out end cap, and piston is when inwardly moving, and push rod will inwardly advance this piston shaft, in the process that push rod advances; Have several angle between push rod and the piston shaft, therefore, at push rod during to the piston shaft application of force; The connection part of end cap and piston shaft will receive the external force that push rod applies, thereby should locate the stressed maximum of friction of guide collar and dust-separation circle, the booster of this kind structure; Though solved sealing, long-term action, wearing and tearing also can appear in the sealing position of piston shaft and end cap; Cause the generation in slit, outside moisture or dust can enter into from this slit in the A chamber again, and moisture can make enclosure interior rust staining occur equally; Dust can produce accumulation in housing, finally scrap this booster, influences the working life of booster.
Summary of the invention
Problem in view of known technology existence at present; The technical problem that the present invention will solve is to be to provide a kind of piston shaft can not produce a kind of internal respiration formula booster of wearing and tearing to this position in the motion of the extending area of booster end cap for a long time, thereby guarantees to be in sealing state forever in the booster chamber.
For solving the problems of the technologies described above, the present invention takes following technological scheme to accomplish: this kind internal respiration formula booster comprises housing, end cap, boosting piston, spring and piston shaft; Said boosting piston places in the housing, and this boosting piston is divided into ante-chamber and back cavity with cylinder body, and said spring is installed in the housing; And contact with said boosting piston, said piston shaft is connected with push rod, and said housing is provided with suction port, relief opening and filler opening; Said suction port is communicated with relief opening and back cavity respectively; Said piston shaft passes end cap, and the axis body of said piston shaft and the contact position of end cap are provided with guide collar, and the ante-chamber that said end cap and piston form is a totally enclosed type; This cavity is communicated with described relief opening; It is characterized in that being provided with the connecting groove that is connected with push rod in the axis body of said piston shaft, also be provided with the swinging chute with degree of depth that supplies the swing of push rod position in the said axis body, said swinging chute and connecting groove link together; The groove footpath of said swinging chute from inside to outside is horn-like and progressively increases, and the bar footpath of said push rod is less than the groove footpath of connecting groove.
The body of rod of said push rod has tapering, and said push rod front end is spherical, and in this connecting groove, is provided with the push rod locating slot, is provided with positioning retainer ring in the said locating slot.
The wall of said housing is provided with corrugated hose, and said totally enclosed cavity is communicated with said relief opening through this corrugated hose.
The joint of said end cap and piston shaft is provided with guide collar.
Be provided with diaphragm in the said relief opening.
Said housing and end cap adopt aluminium.
Among the present invention, owing to increased swinging chute,, the head of push rod is placed in this connecting groove so just deepened the connecting groove degree of depth on the piston shaft; Length after just having shortened push rod and the integral body of piston shaft being connected, and, because being shaped as of swinging chute is horn-like, therefore; Push rod just can have enough position angles to swing in swinging chute, and when the piston shaft side-to-side movement, the push rod bottom is basically all in the A chamber; Therefore, push rod can not reduce the frictional force at this position in addition to the sealing part application of force of end cap and piston shaft; Like this, guaranteed that the sealing position the slit can not occur between piston shaft and the end cap, guaranteed the sealing in booster A chamber; Moisture and dust just can not enter into enclosure interior, have guaranteed the quality of booster, have prolonged the service time of booster.
Description of drawings
Combine accompanying drawing to further describe embodiment below again:
Fig. 1 is the structural drawing of internal respiration booster of the present invention;
Fig. 2 is the structural representation of another model internal respiration patent device of the present invention;
Fig. 3 is push rod placement location figure of the present invention.
Embodiment
Accompanying drawing has been represented structure of the present invention and embodiment, combines accompanying drawing to describe each relevant details of embodiment, this internal respiration formula booster below again; Comprise housing 7, end cap 5, boosting piston 6, spring 23 and piston shaft 16, said boosting piston 6 places in the housing 7, and this boosting piston 6 is divided into ante-chamber A and back cavity B with housing 7; Said spring 23 is installed in the housing 7, and contacts with said boosting piston 6, and spring 23 can be arranged in ante-chamber A or the back cavity B according to the different model of booster; The part of said push rod 1 is passed end cap 5 and is arranged at ante-chamber A the inside; Except being provided with connecting groove 22, also be provided with the swinging chute with degree of depth 24 that is connected with this connecting groove 22 in the axis body of said piston shaft 16, said push rod 1 front end is arranged in the connecting groove 22; And the degree of depth of swinging chute 24 is a length computation with the piston shaft in the ante-chamber A 16; Its groove depth is greater than 1/2nd of ante-chamber piston shaft total length, like this, and the total length after after push rod 1 is arranged on connecting groove 22 inside, has just shortened whole piston shaft 16 and push rod 1 is connected; The groove footpath of said this swinging chute 24 from inside to outside is horn-like and progressively increases, and the bar footpath of said push rod 1 is less than the groove footpath of swinging chute 24.The body of rod of said push rod 1 has tapering, and tapering can make push rod 1 in this swinging chute 24, enough pendulum angles arranged, and said push rod 1 front end is spherical, and in this connecting groove 22, is provided with push rod locating slot 25, is provided with positioning retainer ring 26 in the said locating slot 25.So just, shortened the length that push rod 1 is exposed at piston shaft 16 outsides, reduced the dynamics that push rod 1 applies to piston shaft 16, frictional force that simultaneously can in addition 5 generations add to end cap when piston shaft 16 motions; Said housing 7 is provided with suction port 12, relief opening 18 and filler opening 11; Said suction port 12 is communicated with back cavity B with relief opening 18 respectively; Said end cap 5 forms a totally enclosed cavity with ante-chamber A; Adopt 14 sealings of O RunddichtringO at end cap 5 and preceding cavity shell, can prevent more effectively that extraneous moisture and impurity from getting into ante-chamber A, guarantees usability; Be provided with dust-proof cover 2 in end cap 5 outsides, this dust-proof cover 2 seals part piston shaft 16 and push rod 1; Said totally enclosed cavity is communicated with described relief opening 18; The wall of said housing 7 is provided with respiration channel 15, be arranged on respiration channel 15 on housing 7 walls after, make structure compact more, improved unfailing performance simultaneously; Said totally enclosed cavity is communicated with said relief opening 18 through this respiration channel 15; Said end cap 5 is provided with guide collar 8 with the joint of piston shaft 16, and this guide collar 5 helps the straight line motion of boosting piston 6, for boosting piston 6 leads, has prolonged working life, and is drive fit, has increased the sealing at this place; Said end cap 5 also is provided with dust-separation circle 3 with the joint of piston shaft 16, and this dust-separation circle 3 uses with dust-proof cover 2 simultaneously, has strengthened the anti-dust performance of ante-chamber A, and A provides double shield for ante-chamber; Be provided with diaphragm 19 in the said relief opening 18, the setting of this diaphragm 19 makes that also extraneous impurity is difficult to enter into housing 7 inside through relief opening 18, has also prolonged its working life.Said housing 7 and end cap 5 all adopt aluminium.Be provided with sealed member at said filler opening 11 cavitys and said piston shaft 16 contacting points; The setting of sealing parts makes gas and liquid intercept mutually, prevents to go here and there mutually; But in order to make provision against emergencies; Gas channel still is set between it, makes just in case gas or the liquid revealed can avoid influencing the work of booster outside gas channel is discharged to housing; The filter that its gas channel end is provided with prevents effectively that also the water of outside or impurity from getting into, and has prolonged sealed member working life.The present invention is installed in spring 23 will work in the ante-chamber A time; Brake fluid enters into oil cylinder through filler opening 11, promotes relaying piston 10 right laterals, backs down valve 17; Pressurized air from suction port 12 just enters into back cavity B along admission line; And promote boosting piston 6 left lateral, behind boosting piston 6 left lateral, gas unnecessary in the ante-chamber A is discharged in the atmosphere through relief opening 18 through respiration channel 15.When the present invention discharged, brake fluid pressure was removed, relaying piston 10 returns, and valve 17 is closed, and back cavity B air feed stops, and at this moment, the gas in the back cavity B is through admission line, and the exhaust passage through relaying piston 10 is discharged in the atmosphere through relief opening 18; Simultaneously, owing to boosting piston 6 moves to right, thereby ante-chamber A forms vacuum chamber; At this moment, back cavity B is discharged to the air of relief opening 18, and a part forms branch's gas, gets into ante-chamber A through the respiration channel on housing 7 walls 15, and ante-chamber A gas is compensated.In whole work cycle, ante-chamber A directly is not in communication with the outside all the time, therefore, just can guarantee the working life of ante-chamber and the performance of booster assembly.After the present invention is installed in back cavity B with spring 23, when assembling is of the present invention, boosting piston 6 is set to the position near back cavity B; Make spring 23 is had a precompression; And use when of the present invention, its push rod 1 is connected with the shift fork of clutch, behind the friction disc wear in the clutch; Because the precompression of spring 23 can be adjusted clutch friction plate automatically.And its working principle is installed in ante-chamber A with spring 23 is identical; Above-mentioned its push rod that respectively moves all is arranged in the connecting groove of piston shaft, and under the situation of the total length that has shortened push rod and piston shaft, the wearing and tearing to piston shaft and end cap joint when it applies external force are minimum; Prolonged working life; Improved the quality of product, the present invention compared with prior art has substantive distinguishing features and progress.
Claims (6)
1. internal respiration formula booster; Comprise housing (7), end cap (5), boosting piston (6), spring (23) and piston shaft (16), said boosting piston (6) places in the housing (7), and this boosting piston (6) is divided into ante-chamber (A) and back cavity (B) with cylinder body; Said spring (23) is installed in the housing (7); And contact with said boosting piston (6), said piston shaft (16) is connected with push rod (1), and said housing (7) is provided with suction port (12), relief opening (18) and filler opening (11); Said suction port (12) is communicated with relief opening (18) and back cavity (B) respectively; Said piston shaft (16) passes end cap, and the contact position of the axis body of said piston shaft (16) and end cap (5) is provided with dust-separation circle (3), and said end cap (5) is a totally enclosed type with the ante-chamber (A) that boosting piston (6) forms; This cavity is communicated with described relief opening (18); It is characterized in that being provided with the connecting groove (22) that is connected with push rod (1) in the axis body of said piston shaft (16), also be provided with in the said axis body and supply swing and the swinging chute (24) that have the degree of depth in push rod (1) position, said swinging chute (24) links together with connecting groove (22); The groove footpath of said swinging chute (24) from inside to outside is horn-like and progressively increases, and the bar footpath of said push rod (1) is less than the groove footpath of connecting groove (22).
2. internal respiration formula booster according to claim 1; The body of rod that it is characterized in that said push rod (1) has tapering; Said push rod (1) front end is spherical, and in this connecting groove (22), is provided with push rod locating slot (25), is provided with positioning retainer ring (26) in the said locating slot (25).
3. internal respiration formula booster according to claim 1 is characterized in that the wall of said housing (7) is provided with corrugated hose (15), and said totally enclosed cavity is communicated with said relief opening (18) through this corrugated hose (15).
4. internal respiration formula booster according to claim 1 is characterized in that the said end cap (5) and the joint of piston shaft (16) are provided with guide collar (8).
5. internal respiration formula booster according to claim 1 is characterized in that being provided with in the said relief opening (18) diaphragm (19).
6. internal respiration formula booster according to claim 1 is characterized in that said housing (7) and end cap (5) adopt aluminium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101216201A CN102635649A (en) | 2012-04-24 | 2012-04-24 | Internal respirable booster |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101216201A CN102635649A (en) | 2012-04-24 | 2012-04-24 | Internal respirable booster |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102635649A true CN102635649A (en) | 2012-08-15 |
Family
ID=46620167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101216201A Pending CN102635649A (en) | 2012-04-24 | 2012-04-24 | Internal respirable booster |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102635649A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111750001A (en) * | 2020-06-01 | 2020-10-09 | 瑞立集团瑞安汽车零部件有限公司 | An integrated piston closed plunger type inner breathing clutch booster |
| CN113048164A (en) * | 2021-03-24 | 2021-06-29 | 浙江科力车辆控制系统有限公司 | Internal exhaust type clutch booster |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4419923A (en) * | 1979-07-17 | 1983-12-13 | Nisshin Kogyo Kabushiki Kaisha | Toggle assembly for vehicles or cars |
| CN200971937Y (en) * | 2006-10-12 | 2007-11-07 | 江苏黄海汽配股份有限公司 | Hydraulic clutch general pump |
| CN101280811A (en) * | 2008-05-27 | 2008-10-08 | 瑞立集团瑞安汽车零部件有限公司 | Electric-controlled pneumatic type clutch booster unit and operating method thereof |
| CN201206604Y (en) * | 2008-05-09 | 2009-03-11 | 浙江万安科技股份有限公司 | A kind of automobile clutch booster assembly |
| EP2053260A2 (en) * | 2007-10-25 | 2009-04-29 | KNORR-BREMSE Systeme für Nutzfahrzeuge GmbH | Clutch booster |
| CN101761593A (en) * | 2010-01-13 | 2010-06-30 | 蒋伟荣 | Internal recycle booster |
| CN201687871U (en) * | 2009-11-26 | 2010-12-29 | 北汽福田汽车股份有限公司 | Clutch booster |
| CN201916014U (en) * | 2011-01-25 | 2011-08-03 | 瑞立集团瑞安汽车零部件有限公司 | Operating cylinder of exhaust brake valve of automobile engine |
| CN202510586U (en) * | 2012-04-24 | 2012-10-31 | 瑞立集团瑞安汽车零部件有限公司 | Internal respiration type booster |
-
2012
- 2012-04-24 CN CN2012101216201A patent/CN102635649A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4419923A (en) * | 1979-07-17 | 1983-12-13 | Nisshin Kogyo Kabushiki Kaisha | Toggle assembly for vehicles or cars |
| CN200971937Y (en) * | 2006-10-12 | 2007-11-07 | 江苏黄海汽配股份有限公司 | Hydraulic clutch general pump |
| EP2053260A2 (en) * | 2007-10-25 | 2009-04-29 | KNORR-BREMSE Systeme für Nutzfahrzeuge GmbH | Clutch booster |
| CN201206604Y (en) * | 2008-05-09 | 2009-03-11 | 浙江万安科技股份有限公司 | A kind of automobile clutch booster assembly |
| CN101280811A (en) * | 2008-05-27 | 2008-10-08 | 瑞立集团瑞安汽车零部件有限公司 | Electric-controlled pneumatic type clutch booster unit and operating method thereof |
| CN201687871U (en) * | 2009-11-26 | 2010-12-29 | 北汽福田汽车股份有限公司 | Clutch booster |
| CN101761593A (en) * | 2010-01-13 | 2010-06-30 | 蒋伟荣 | Internal recycle booster |
| CN201916014U (en) * | 2011-01-25 | 2011-08-03 | 瑞立集团瑞安汽车零部件有限公司 | Operating cylinder of exhaust brake valve of automobile engine |
| CN202510586U (en) * | 2012-04-24 | 2012-10-31 | 瑞立集团瑞安汽车零部件有限公司 | Internal respiration type booster |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111750001A (en) * | 2020-06-01 | 2020-10-09 | 瑞立集团瑞安汽车零部件有限公司 | An integrated piston closed plunger type inner breathing clutch booster |
| CN113048164A (en) * | 2021-03-24 | 2021-06-29 | 浙江科力车辆控制系统有限公司 | Internal exhaust type clutch booster |
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| PB01 | Publication | ||
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Application publication date: 20120815 |