CN102887140B - Locking device for parking brake - Google Patents

Abstract

The invention discloses a kind of locking device for parking brake, including: parking bar；Parking bar spring, this parking bar spring applies restoring force to described parking bar；Cylinder, oilhole is formed on this cylinder；Piston, this piston includes the piston rod being connected to described parking bar and the piston main body being located in described cylinder, and described piston can be moved along the length direction of described cylinder according to the supply carried out oil by described oilhole and release；Electromagnetic valve；Lock cell, this lock cell is arranged in described cylinder, for locking described piston described electromagnetic valve has been supplied electric energy when, and for locking described piston described electromagnetic valve is not supplied electric energy when；And urgent parking apparatus, this urgent parking apparatus is connected to described lock cell and optionally forces this lock cell to move.

Description

Locking device for parking brake

Cross-Reference to Related Applications

This application claims the korean patent application No.10-2011-0072555 submitted on July 21st, 2011 priority and Rights and interests, the entire disclosure of which is hereby incorporated by, for all purposes quoted by this.

Technical field

The present invention relates to a kind of locking device for parking brake.More specifically, the present invention relates to such one Plant the locking device for parking brake, even if it can also keep lock-out state when not being supplied electric energy, And parked state or parking release conditions can be operated in emergency situations.

Background technology

In general, parking device (parking brake) is by utilizing the parking interlocking gear on park position territory " P " (parking gear) locks the sprag being arranged in output shaft, thus vehicle is remained halted state, this parking device Automatic transmission is set to.

Fig. 6 is the sectional view of conventional parking brake.

Conventional parking device includes brake bar (detent lever) 12, this brake bar 12 be connected to shift bar 10 and Rotate according to the park mode that shift bar 10 selects；Parking bar 14, this parking bar 14 is connected to brake bar 12 and leads to Cross the rotation of brake bar 12 and move linearly, and roller 28 is arranged in the end of this parking bar 14；Sprag 18, this sprag 18 can rotate around hinge 30, and lock protuberance 34 and be formed at the end of this sprag 18；Return spring 32, this return bullet Spring 32 is arranged in hinge 30 with for providing restoring force to sprag 18；And parking interlocking gear 22, engagement groove 20 is formed In this parking interlocking gear 22, and this engagement groove 20 optionally engages with locking protuberance 34.

Bar spring 26 is arranged in parking bar 14, to be used for providing restoring force to parking bar 14.

In the middle of conventional parking device, when shift bar 10 is manipulated park mode by driver when, it is connected to gear shift The brake bar 12 of bar 10 rotates, and the parking bar 14 being then attached to brake bar 12 moves linearly.Then, parking bar 14 it is connected to The roller 28 of end makes sprag 18 rotate.

Therefore, the parking interlocking gear 22 of sprag 18 engages with the engagement groove 20 of parking interlocking gear 22, with In fixing parking interlocking gear 22, thus maintain parked state.

When shift bar 10 is transformed into other patterns from park mode when, parking bar 14 is by the elastic force of bar spring 26 With crank fashion to back rotation, and sprag 18 also by return spring 32 elastic force and with crank fashion to back rotation, because of This locking protuberance 34 and engagement groove 20 separate, thus finish parked state.

Recently, generally utilize SBW (shift-by-wire) for the wish of driver being sent to TCU, thus by hydraulic pressure come Release machinery parking.Therefore, have only to a small amount of power compared with conventional TGS (shifting of transmission) bar (P/R/N/D), because of This provides convenience for driver.

Further, when vehicle is powered as drive pattern (such as D shelves) time, electromagnetic valve and locking device is used Prevent the mechanical parking of variator, and the hydraulic pressure being fed to parking piston is fast released.

But, in the middle of conventional art, it is necessary to keep lock-out state for induced current.Therefore, if cut off in N shelves Electric energy, then brake is engaged.

In suc scheme, particularly in narrow parking region, inconvenience is caused to driver.

The information being disclosed in background parts of the present invention is merely intended to increase the understanding of the general background to the present invention, and should not When being considered to recognize or imply in any form this information structure prior art well known to persons skilled in the art.

Summary of the invention

Various aspects of the invention provide a kind of locking device for parking brake, and it has the advantage, that i.e. Make also to maintain shift mode when tail-off.

The present invention has been directed to provide a kind of locking device for parking brake, and it can be grasped in emergency situations Enter into parked state or parking release conditions.

According to a kind of locking device for parking brake of various aspects of the present invention, may include that parking bar；Parking Bar spring, this parking bar spring applies restoring force to described parking bar；Cylinder, oilhole is formed on this cylinder；Piston, this piston Including the piston rod being connected to described parking bar and the piston main body being located in described cylinder, described piston can be according to passing through State supply that oil carries out by oilhole and release to move along the length direction of described cylinder；Electromagnetic valve；Lock cell, should Lock cell is arranged in described cylinder, for locking described piston described electromagnetic valve has been supplied electric energy when, and And for locking described piston described electromagnetic valve is not supplied electric energy when；And urgent parking apparatus, this is promptly stayed Vehicle device is connected to described lock cell and optionally forces this lock cell to move.

Described urgent parking apparatus can include operator link and action bars, and this operator link is connected to described lock cell And optionally promote this lock cell, thus release the locking of lock cell；Described action bars optionally promotes institute State operator link.

Described urgent parking apparatus can also include: is arranged in the grasping member of described action bars；It is arranged in described grasping member Button；Pivot link, this pivot link can rotate around pivot link hinge and be connected to described operator link；And Connect the operation cable of described pivot link and described button.

Described locking device can also include urgent parking release device, and this urgent parking release device optionally forces Described piston is promoted to make it move towards described cylinder.

Described urgent parking release device can include release link and release cable, this release link be connected to described in stay Car bar or described piston rod；This release cable connects described action bars and described release link, and wherein said action bars is permissible There is the action bars hinge being arranged in its end, and described action bars can be carried out optionally around described action bars hinge Rotate, in order to described release link makes described piston move towards cylinder.

Described lock cell may include that control bar, this control pole-footing according to be fed to described electromagnetic valve electric energy and can Length direction selectively along cylinder moves, and is formed with sloping portion on this control bar；Control part, this control part Can rotate around hinge and be arranged in described cylinder, wherein protuberance is formed at the end of this control part；Plate, this plate It is formed at the end of described control bar；Bearing, described bearing can be arranged in described control bar movably and contact described control Part processed；And support spring, this support spring is arranged between described plate and described bearing, replys to provide to described bearing Power, wherein could be formed with step part on described piston main body, so that described protuberance is selectively locked to this Step part.

When described electromagnetic valve is supplied electric energy when, described sloping portion can promote another of described control part End, described control part can rotate around described hinge, and the locking of described protuberance and step part can be released.

When the electric energy being fed to described electromagnetic valve is cut off when, described control part can pass through described support spring Restoring force and rotate around described hinge, and described protuberance and described step part can be locked.

Described locking device can also include plunger and plunger spring, and this plunger is connected to described control bar, with described Electromagnetic valve makes described control bar move along the length direction of described piston when of being supplied electric energy；This plunger spring to Described plunger provides restoring force, the when of to be cut off at the electric energy being fed to described electromagnetic valve, described plunger is moved.

Described locking device can also include bar guide, and described control bar is guided and supports by this bar guide Described plunger spring.

Described locking device can also include finger-type stop part, this finger-type stop part be arranged on described piston rod for Limit the movement of this piston rod.

Described locking device can also include the bearing guide being arranged in described cylinder, leads for bearing To.

According to a kind of locking device for parking brake of various aspects of the present invention, may include that parking bar；Parking Bar spring, this parking bar spring applies restoring force to described parking bar；Cylinder, oilhole is formed on this cylinder；Piston, this piston Including the piston rod being connected to described parking bar and the piston main body being located in described cylinder, and it is formed with stage portion on this piston Point, described piston can be entered along the length direction of described cylinder according to the supply carried out oil by described oilhole and release Row is mobile；Electromagnetic valve；Plunger, when described electromagnetic valve has been supplied electric energy when, this plunger can be along the length of described piston Degree direction is moved；Plunger spring, this plunger spring provides restoring force to described plunger, with at the electric energy being fed to described electromagnetic valve Described plunger is made to move the when of cut-off；Support the bar guide of described plunger spring；Be arranged in described cylinder Lock cell, for locking described piston described electromagnetic valve has been supplied electric energy when, wherein said lock cell can To include: control bar, this control pole-footing evidence is fed to the electric energy of described electromagnetic valve, can by the guiding of described bar guide Optionally length direction along cylinder moves together with described plunger, and rake is formed on this control bar；Control portion Point, this control part can rotate around hinge and be arranged in described cylinder, and wherein protuberance is formed at this control portion The end divided；Plate, this plate is formed at the end of described control bar；Bearing, described bearing can be arranged in described control movably Bar and contact described control part；And support spring, this support spring is arranged between described plate and described bearing, with to Described bearing provides restoring force, and wherein said locking device can also include urgent parking apparatus, and this urgent parking apparatus is permissible It is connected to described control bar and optionally forces this control bar to move towards described piston.

Described urgent parking apparatus may include that operator link, and this operator link is connected to described lock cell and selects Promote to selecting property this lock cell, thus release the locking of lock cell；Action bars, this action bars optionally promotes described Operator link；It is arranged in the grasping member of described action bars；It is arranged in the button of described grasping member；Pivot link, this pivot link Can rotate around pivot link hinge and be connected to described operator link；And connect described pivot link and described button Operation cable.

According to a kind of locking device for parking brake of various aspects of the present invention, may include that parking bar；Parking Bar spring, this parking bar spring applies restoring force to described parking bar；Cylinder, oilhole is formed on this cylinder；Piston, this piston Including the piston rod being connected to described parking bar and the piston main body being located in described cylinder, and it is formed with stage portion on this piston Point, described piston can be entered along the length direction of described cylinder according to the supply carried out oil by described oilhole and release Row is mobile；Electromagnetic valve；Plunger, when described electromagnetic valve has been supplied electric energy when, this plunger can be along the length of described piston Degree direction is moved；Plunger spring, this plunger spring provides restoring force to described plunger, with at the electric energy being fed to described electromagnetic valve Described plunger is made to move the when of cut-off；Support the bar guide of described plunger spring；Be arranged in described cylinder Lock cell, for locking described piston described electromagnetic valve has been supplied electric energy when, wherein said lock cell can To include: control bar, this control pole-footing evidence is fed to the electric energy of described electromagnetic valve, can by the guiding of described bar guide Optionally length direction along cylinder moves together with described plunger, and sloping portion is formed on this control bar；Control Part, this control part can rotate around hinge and be arranged in described cylinder, and wherein protuberance is formed at this control The end of part；Plate, this plate is formed at the end of described control bar；Bearing, described bearing can be arranged in described control movably Bar processed and contact described control part；And support spring, this support spring is arranged between described plate and described bearing, with Thering is provided restoring force to described bearing, wherein said locking device can also include urgent parking release device, and this urgent parking is released Force the described piston of promotion to make it move towards described cylinder with putting equipment choice, wherein said urgent parking release device can To include: release link, this release link is connected to described parking bar or described piston rod；Release cable, this release cable Connect described action bars and described release link；And action bars, this action bars has the behaviour of the end being arranged in this action bars Making bar hinge, and this action bars is connected to described release cable, wherein said action bars can enter around described action bars hinge Row is selectively rotated, in order to described release link makes described piston move towards cylinder, thus discharges in the state of emergency Park mode.

According to various aspects of the invention, in the case of being not intended for answering electric energy and there is no battery discharge, even if closing Shift mode can also be kept under the state closing electromotor, even and if stop in N shelves in the operation of electromotor, it is possible to To keep this N shelves pattern, therefore in narrow parking region, easily vehicle can be carried out parking.

According to various aspects of the invention, can reduce for locking or the capacity of the electromagnetic valve of release locking, therefore The overall size of locking device can be reduced.

Methods and apparatus of the present invention has additional features and advantages, and these characteristics and advantage are attached from be incorporated herein Figure and detailed description of the invention subsequently will be apparent from, or by the accompanying drawing being incorporated herein and concrete reality subsequently Executing in mode and state in detail, these the drawings and specific embodiments are provided commonly for explaining the certain principles of the present invention.

Accompanying drawing explanation

Fig. 1 is that the exemplary locking device for parking brake according to the present invention is in addition to park mode The sectional view being operated under other patterns.

Fig. 2 is that the exemplary locking device for parking brake according to the present invention is operated under park mode Sectional view.

Fig. 3 is the enlarged drawing of the part A of Fig. 1.

Fig. 4 is the exemplary locking device for parking brake with urgent parking apparatus according to the present invention Sectional view.

Fig. 5 is to have the exemplary for parking of urgent parking apparatus and urgent parking release device according to the present invention The sectional view of the locking device of brake.

Fig. 6 is the sectional view of conventional parking brake.

Detailed description of the invention

Specific reference will be made to now each embodiment of the present invention, show that these are implemented with in description below in the accompanying drawings The example of example.Although the present invention combines with exemplary embodiment and is described, it will be understood that this specification is not intended to Limit the invention to those exemplary embodiments.On the contrary, it is contemplated that not only cover these exemplary embodiments, and cover Lid can be included in the various replacements within the spirit and scope of the present invention being defined by the appended claims, amendment, etc. Effect form and other embodiments.

For ease of understanding, the composed component described in the narration of correlation technique will utilize identical reference It is described.

Fig. 1 be according to each embodiment of the present invention for parking brake locking device except park mode it Be operated under other outer patterns sectional view, Fig. 2 be according to each embodiment of the present invention for parking brake The sectional view that is operated under park mode of locking device, and Fig. 3 is the enlarged drawing of the part A in Fig. 1.

Referring to figs. 1 to Fig. 3, include parking according to the locking device for parking brake of each embodiment of the present invention Bar 110；Parking bar spring 100, this parking bar spring 100 applies restoring force to parking bar 110；Cylinder 300, its oilhole 310 shape Become this cylinder 300；Piston 200, this piston 200 includes the piston rod 210 being connected to parking bar 110 and is located in cylinder 300 Piston main body 240, and piston 200 can be come along cylinder 300 by the supply of oilhole 310 and release according to oil 151 Length direction moves；Electromagnetic valve 600 and lock cell 400, this lock cell 400 is arranged in cylinder 300, for Lock piston 200 electromagnetic valve 600 has been supplied electric energy when, and for not being supplied electric energy at electromagnetic valve 600 Time lock described piston 200.

Described lock cell 400 includes: control bar 410, this control bar 410 according to be fed to electromagnetic valve 600 electric energy and Can move selectively along the length direction of cylinder 300, and be formed with sloping portion 415 on this control bar 410；Control portion Dividing 420, this control part 420 can rotate and be arranged in around hinge 430 in cylinder 300, and controls the prominent of part 420 Portion 440 is formed at the end of this control part 420；Plate 412, this plate 412 is formed at the end controlling bar 410；Bearing 450, institute State bearing 450 be movably arranged at control bar 410 and contact control part 420；With support spring 414, this support spring 414 are arranged between plate 412 and bearing 450, to provide restoring force to bearing 450.

Piston main body 240 is formed with step part 250, so that described protuberance 440 is selectively locked to This step part 250.

Described locking device also includes plunger 550 and plunger spring 555, this plunger 550 be connected to control bar 410, with Electromagnetic valve 600 makes described control bar 410 move along the length direction of piston 200 when of being supplied electric energy；Described post Plug spring 555 provides restoring force to plunger 550, makes described post when of to be cut off at the electric energy being fed to electromagnetic valve 600 Plug 550 moves.

Described locking device also includes bar guide 500, and this bar guide 500 guides controlling bar 410 and props up Support plunger spring 555.

When electromagnetic valve 600 is supplied electric energy when, the magnetic force moving plunger 500 that coil 610 produces, therefore control bar 410 left sides moving to Fig. 1.

On the contrary, when the electric energy being fed to electromagnetic valve 600 is cut off when, control bar 410 returning by plunger spring 555 Multiple power and move to the right side of Fig. 1.

Described locking device also includes finger-type stop part 220, this finger-type stop part 220 be arranged on piston rod 210 with In the movement limiting this piston rod 210.

Described locking device also includes bearing guide 455, and this bearing guide 455 is arranged in cylinder 300, for Guide type shoe 450.

When electromagnetic valve 600 is supplied energy when, sloping portion 415 promotes the other end controlling part 420, control portion Divide and rotate around hinge 430, and the locking of protuberance 440 and step part 250 is released.

When the energy being fed to electromagnetic valve 600 is cut off when, control the part 420 reply by support spring 414 Power and rotate around hinge 430, therefore protuberance 440 and step part 250 are locked.

In the middle of each embodiment of the present invention, the release of locking represents that piston 200 is not being locked with lock cell 400 Moveable state it is in the case of Ding.

Further, lock-out state represents that piston 200 is in immovable shape by carrying out locking with lock cell 400 State.

Hereinafter, park mode represents the state being released as shown in Figure 2 of the oil 151 in cylinder 300, and other moulds Formula (except park mode) represent oil 151 be supplied to cylinder 300 in and piston 200 move to right side as shown in Figure 1 State.

According to the rotation of parking bar 110, the sprag 18 shown in Fig. 6 and parking interlocking gear 22 enter in park mode Row engages, and releases this joint in other patterns.

The structure of parking bar and sprag 18 etc. is apparent from for those skilled in the art, therefore omits it detailed Describe.

Fig. 4 is that the locking for parking brake with urgent parking apparatus according to each embodiment of the present invention fills The sectional view put, and Fig. 5 be according to each embodiment of the present invention have urgent parking apparatus and urgent parking release set The sectional view of the standby locking device for parking brake.

With reference to Fig. 4 and Fig. 5, include promptly according to the locking device for parking brake of each embodiment of the present invention Parking apparatus 700, this urgent parking apparatus 700 is connected to lock cell 400 and optionally forces this lock cell 400 to move Dynamic.

Urgent parking apparatus 700 includes operator link 730, and this operator link 730 is connected to lock cell 400 and selects Property ground promote this lock cell 400, thus release the locking of lock cell 400；And action bars 740, this action bars 740 selects Promote to selecting property operator link 730.

Described urgent parking apparatus 700 also includes the grasping member 770 being arranged in action bars 740；It is arranged in grasping member 770 Button 750；Pivot link 710, this pivot link 710 can rotate and be connected to operation even around pivot link hinge 720 Bar 730；With connection pivot link 730 and the operation cable 760 of button 750.

Button spring 755 can be arranged on grasping member 770, to provide restoring force to button 750.

In case of emergency, when driver manipulates button 750 when, operation cable 760 makes pivot link 710 around rotation Connecting rod link 720 rotates, and the control bar 410 being connected to pivot link 730 is urged downward cylinder 300 and moves and (be inserted into gas In cylinder 300).

But, the structure of urgent parking apparatus 700 is also not affected by the restriction shown in figure, on the contrary, it would however also be possible to employ force The various modification in cylinder 300 are moved to by controlling bar 410.

The locking device for parking brake according to each embodiment of the present invention can also include that urgent parking is released Putting equipment 800, this urgent parking release device 800 optionally forces promotion piston 200 to make it move towards cylinder 300 and (inserts Enter in cylinder 300).

Described urgent parking release device 800 includes release link 810, this release link 810 be connected to parking bar 110 or Person's piston rod 210；And release cable 820, this release cable 820 attended operation bar 740 and described release link 810.Wherein Described action bars 740 has an action bars hinge 745 being arranged in its end, and wherein action bars 740 around action bars hinge 745 are selectively rotated, to allow release link 810 make piston 200 move towards cylinder 300.

Below, it will describe the operation of the locking device for parking brake according to each embodiment of the present invention.

Other patterns, such as R/N/D shelves pattern will be described with reference to Figure 1.

In other patterns, oil 151 is supplied in cylinder 300 by oil supply orifice 310, and piston 200 is relative Move in cylinder 300, and the joint of sprag 18 and parking interlocking gear 22 is discharged (with reference to Fig. 6).

Electromagnetic valve 600 not supplying energy, and bearing 450 promotes control part by the elastic force of support spring 414 The end of 420, therefore protuberance 440 is locked into step part 250.

That is, it is locked by lock cell 400.

Under this condition, such as, vehicle is just driven in D shelves pattern, even if oil 151 is released, due to protuberance 440 are connected with step part 250, and parking brake (parking system) also will not be operated.

Further, even if the igniting of such as vehicle is closed in N shelves pattern, due to protuberance 440 and step part 250 phase Connecting, parking brake also will not be operated.

Electromagnetic valve 600 according to each embodiment of the present invention is NH (the highest) type, even if therefore having cut off electric current, as State shown in Fig. 1 can also be maintained.Therefore, it can keep lock-out state, even and if therefore in the igniting pass of vehicle Neutral mode can also be kept under the state closed.

That is, in other patterns, particularly in N shelves pattern, although hydraulic pressure is released, but piston 200 can lead to Cross the restoring force of spring 100 and move towards spring 100, but step part 250 is locked into protuberance 440, therefore piston 200 can be not moved.

In this case, igniting is closed, and has therefore cut off the energy being fed to electromagnetic valve 600.Thus infer, i.e. Make to close electromotor in N shelves pattern, but still can keep this N shelves pattern.

The locking device for parking brake according to each embodiment of the present invention can be protected under the conditions of not operation Hold current shift mode, without supplying energy into electromagnetic valve, be therefore possible to prevent battery discharge.

Hereinafter, with reference to Fig. 2, it will describe the locking device for parking brake according to each embodiment of the present invention Operation under parking (P) pattern.

In the park mode according to each embodiment of the present invention, electromagnetic valve 600 has been supplied electric current (electric energy), thus Release lock-out state.

As in figure 2 it is shown, when electromagnetic valve 600 has been supplied electric current when, plunger 550 and control bar 410 move in figure Left side.Sloping portion 415 promotes the other end controlling part 420, and controls part 420 and rotate around hinge 430, thus prominent The locking (connection) going out portion 440 and step part 250 is released.

That is, as shown in " B " of Fig. 2, the locking of lock cell 400 is released, and then implements park mode.

Meanwhile, oil 151 is released by oilhole 310, and piston 200 is by the restoring force of parking bar spring 100 Move to the left side in figure.

Then, sprag 18 and parking interlocking gear 22 (with reference to Fig. 6) are engaged, thus implement park mode.

Then, if vehicle mode changes to other patterns from park mode, such as, change and arrive R/N/D gearing regime, as Shown in Fig. 1, oil 151 is supplied by oilhole 310, and piston 200 moves to the right side in figure, is fed to the electricity of electromagnetic valve 600 Stream is cut-off, and plunger 550 and control bar 410 move to the right side in figure by the restoring force of plunger spring 555.

And bearing 450 promotes the end controlling part 420, and protuberance 440 by the elastic force of support spring 414 It is locked into step part 250, it is achieved thereby that the locking carried out by lock cell 400.

The operation of urgent parking apparatus 700 is described below with reference to Fig. 4.

In case of emergency, such as, in the case of electromagnetic valve 600 breaks down or do not supplies electric energy, when driver grasps The when of control button 750, control bar 410 and can be forced to move in cylinder 300.

Then, sloping portion 415 promotes the other end controlling part 420, and controls part 420 and rotate around hinge 430, Thus the locking of protuberance 440 and step part 250 (connection) is discharged.

That is, as shown in " B " of Fig. 2, the locking of lock cell 400 is released, and then implements park mode.

Meanwhile, oil 151 is released by oilhole 310, and piston 200 is by the restoring force of parking bar spring 100 Move to the left side in figure.

Then, sprag 18 and parking interlocking gear 22 (with reference to Fig. 6) are engaged, thus implement park mode.

The operation of urgent parking release device 800 is described below with reference to Fig. 5.

In case of emergency, such as when the hydraulic pressure of oil 151 is not enough to operate parking device when, driver's manipulation operation bar 740, so that piston 200 is forced to move in cylinder 300, thus discharge parked state.

The structure of urgent parking apparatus 700 and urgent parking release device 800 can be variable, and it is so that operate Bar 410 and piston rod 210 are forced mobile.Such as, the structure of urgent parking apparatus 700 and urgent parking release device 800 is permissible Change mutually.

The locking device for parking brake according to each embodiment of the present invention is not supplying energy into electricity In the case of magnet valve 600, current gearing regime can be kept under the conditions of not operation, be therefore possible to prevent battery discharge, at N Shelves pattern is such especially.

Further, even if the hydraulic pressure being fed to cylinder is reduced under drive condition, it is also possible to holding locking condition, thus also Do not operate parking brake, therefore can avoid accident and energy efficiency can be improved.

In the case of electromagnetic valve 600 breaks down or does not supply electric energy, it is possible to achieve park mode, and when oil Pressure can also realize park mode time sufficient not.

Explaining for convenience and accurately limit claims, term " left " or " right " etc. are to show in reference to figure The position of feature these features of illustrative embodiments are described.

The aforementioned description to the specific illustrative embodiment of the present invention illustrates that and the purpose of illustration.These describe It is not wishing to the limit present invention, or limits the invention to disclosed precise forms, and it will be apparent that according to above-mentioned teaching, Can much change and change.The purpose selected exemplary embodiment and describe is to explain that the present invention's is specific Principle and actual application thereof, so that others skilled in the art are capable of and utilize that the present invention's is various different Exemplary and various different selection and change.The scope of the present invention be intended to by appending claims and Equivalents is limited.

Claims (14)

1. for a locking device for parking brake, including:

Parking bar；

Parking bar spring, this parking bar spring applies restoring force to described parking bar；

Cylinder, this cylinder includes the oilhole being formed on this cylinder；

Piston, this piston includes the piston rod being connected to described parking bar and the piston main body being located in described cylinder, described work Oil supplying can be moved along the length direction of described cylinder with release by plug according to by described oilhole；

Electromagnetic valve；

Lock cell, this lock cell is arranged in described cylinder, for described electromagnetic valve has been supplied electric energy when Discharge described piston, and for locking described piston described electromagnetic valve is not supplied electric energy when；And

Urgent parking apparatus, this urgent parking apparatus is connected to described lock cell and optionally forces this lock cell to move It is dynamic,

Wherein said lock cell includes:

Control bar, this control pole-footing according to be fed to described electromagnetic valve electric energy and can be selectively along the length direction of cylinder Mobile, and it is formed with sloping portion on this control bar；

Controlling part, this control part can rotate around hinge and be arranged in described cylinder, and described control part includes It is formed at the protuberance of its end；

Plate, this plate is formed at the end of described control bar；

Bearing, described bearing can be arranged in described control bar movably and contact described control part；With

Support spring, this support spring is arranged between described plate and described bearing, to provide restoring force to described bearing,

Wherein on described piston main body, it is formed with step part, so that described protuberance is selectively locked to this step Part.

Locking device for parking brake the most according to claim 1, wherein said urgent parking apparatus includes:

Operator link, this operator link is connected to described lock cell and optionally promotes this lock cell, thus discharging The locking of lock cell；And

Action bars, this action bars optionally promotes described operator link.

Locking device for parking brake the most according to claim 2, wherein said urgent parking apparatus also includes:

It is arranged in the grasping member of described action bars；

It is arranged in the button of described grasping member；

Pivot link, this pivot link can rotate around pivot link hinge and be connected to described operator link；And

Connect the operation cable of described pivot link and described button.

Locking device for parking brake the most according to claim 3, wherein said locking device also includes promptly Parking release device, this urgent parking release device optionally forces the described piston of promotion to make it move towards described cylinder.

Locking device for parking brake the most according to claim 4, wherein said urgent parking release device bag Include:

Release link, this release link is connected to described parking bar or described piston rod；And

Release cable, this release cable connects described action bars and described release link,

Wherein said action bars includes the action bars hinge being arranged in its end, and described action bars cuts with scissors around described action bars Chain is selectively rotated, in order to described release link makes described piston move towards cylinder.

Locking device for parking brake the most according to claim 1, is wherein supplied electric energy when described electromagnetic valve When, described sloping portion promotes the described other end controlling part, and described control rotates partially around described hinge, and The locking of described protuberance and step part is released.

Locking device for parking brake the most according to claim 1, wherein when the electricity being fed to described electromagnetic valve The when of being cut off, described control part is rotated around described hinge by the restoring force of described support spring, and described Protuberance and described step part are locked.

Locking device for parking brake the most according to claim 1, wherein said locking device also includes:

Plunger, this plunger is connected to described control bar, to make described control described electromagnetic valve has been supplied electric energy when Bar moves along the length direction of described piston；And

Plunger spring, this plunger spring provides restoring force to described plunger, to be cut off at the electric energy being fed to described electromagnetic valve When described plunger is moved.

Locking device for parking brake the most according to claim 8, wherein said locking device also includes that bar is led To part, this bar guide guides and supports described plunger spring to described control bar.

Locking device for parking brake the most according to claim 1, wherein said locking device also includes finger-type Stop part, this finger-type stop part is arranged on described piston rod for the movement limiting this piston rod.

11. locking devices for parking brake according to claim 1, wherein said locking device also includes arranging Bearing guide in described cylinder, guides for bearing.

12. 1 kinds of locking devices for parking brake, including:

Parking bar；

Parking bar spring, this parking bar spring applies restoring force to described parking bar；

Cylinder, this cylinder includes the oilhole being formed on this cylinder；

Piston, this piston includes the piston rod being connected to described parking bar and the piston main body being located in described cylinder, and this is lived Being formed with step part beyond the Great Wall, described piston can be come along described according to the supply carried out oil by described oilhole and release The length direction of cylinder moves；

Electromagnetic valve；

Plunger, when described electromagnetic valve has been supplied electric energy when, this plunger can move along the length direction of described piston；

Plunger spring, this plunger spring provides restoring force to described plunger, to be cut off at the electric energy being fed to described electromagnetic valve When described plunger is moved；

Support the bar guide of described plunger spring；With

It is arranged in the lock cell in described cylinder, for discharging described work described electromagnetic valve has been supplied electric energy when Plug,

Wherein said lock cell includes:

Controlling bar, this control pole-footing, can be with by the guiding of described bar guide according to being fed to the electric energy of described electromagnetic valve Described plunger moves along the length direction of cylinder together, and this control bar includes sloping portion formed thereon；

Controlling part, this control part can rotate around hinge and be arranged in described cylinder, and the described part that controls is wrapped Include the protuberance being formed at its end；

Plate, this plate is formed at the end of described control bar；

Bearing, described bearing can be arranged in described control bar movably and contact described control part；And

Support spring, this support spring is arranged between described plate and described bearing, to provide restoring force to described bearing,

Wherein said locking device also includes urgent parking apparatus, and this urgent parking apparatus is connected to described control bar and selects Property this control bar is forced to move towards described piston.

13. locking devices for parking brake according to claim 12, wherein said urgent parking apparatus includes:

Operator link, this operator link is connected to described lock cell and optionally promotes this lock cell, thus discharging The locking of lock cell；

Action bars, this action bars optionally promotes described operator link；

It is arranged in the grasping member of described action bars；

It is arranged in the button of described grasping member；

Pivot link, this pivot link can rotate around pivot link hinge and be connected to described operator link；And

Connect the operation cable of described pivot link and described button.

14. 1 kinds of locking devices for parking brake, including:

Parking bar；

Parking bar spring, this parking bar spring applies restoring force to described parking bar；

Cylinder, this cylinder includes the oilhole being formed on this cylinder；

Piston, this piston includes the piston rod being connected to described parking bar and the piston main body being located in described cylinder, and this is lived Being formed with step part beyond the Great Wall, described piston can be come along described according to the supply carried out oil by described oilhole and release The length direction of cylinder moves；

Electromagnetic valve；

Plunger, when described electromagnetic valve has been supplied electric energy when, this plunger can move along the length direction of described piston；

Plunger spring, this plunger spring provides restoring force to described plunger, to be cut off at the electric energy being fed to described electromagnetic valve When described plunger is moved；

Support the bar guide of described plunger spring；With

It is arranged in the lock cell in described cylinder, for discharging described work described electromagnetic valve has been supplied electric energy when Plug,

Wherein said lock cell includes:

Controlling bar, this control pole-footing, can be with by the guiding of described bar guide according to being fed to the electric energy of described electromagnetic valve Described plunger moves along the length direction of cylinder together, and this control bar includes sloping portion formed thereon；

Controlling part, this control part can rotate around hinge and be arranged in described cylinder, and the described part that controls is wrapped Include the protuberance being formed at its end；

Plate, this plate is formed at the end of described control bar；

Bearing, described bearing can be arranged in described control bar movably and contact described control part；And

Support spring, this support spring is arranged between described plate and described bearing, to provide restoring force to described bearing,

Wherein said locking device also includes urgent parking release device, and this urgent parking release device optionally forces promotion Described piston makes it move towards described cylinder；

Wherein said urgent parking release device includes:

Release link, this release link is connected to described parking bar or described piston rod；

Release cable, this release cable attended operation bar and described release link；And

Described action bars, this action bars has the action bars hinge of the end being arranged in this action bars, and this action bars is connected to Described release cable,

Wherein said action bars is selectively rotated around described action bars hinge, in order to described release link makes described Piston moves towards cylinder, thus discharges park mode in the state of emergency.