CN206012576U - Holding brake device and motor vehicles - Google Patents

Abstract

The utility model discloses a kind of holding brake device and motor vehicles, the holding brake device includes the containing cavity inside brake portion and brake operating portion located at in-car corresponding position, the lower end in the brake operating portion is connected with the braking parts, and via of the upper end from the panel of accommodating top of chamber is passed；The braking parts include the first locking piece and a brake component；The brake operating portion includes motion arm, the second locking piece that can coordinate and the actuator for driving the second locking piece with the first locking piece locking；The motion arm includes the first motion arm and the second motion arm；First motion arm is oblique, and lower beveled end is connected cooperation with the brake component of the braking parts, and upper beveled end to first direction away from the braking parts and is upwardly extended；Second motion arm is curved, and its lower end is connected with the upper beveled end of first motion arm, and upper end is to first in opposite direction second direction and upwardly direction passes the panel.

Description

Holding brake device and motor vehicles

Technical field

This utility model is related to a kind of vehicle parking device and motor vehicles.

Background technology

Holding brake device refers to that the hand-operated brake that motor vehicles are installed, abbreviation parking brake are used for after vehicle comes to a complete stop stable Vehicle, it is to avoid vehicle is when slope pavement stops as car slipping causes the accident.Common parking brake is typically disposed under driver's right hand Vertical position, is easy to use.

Traditional holding brake device the middle position of front-seat two seats or is installed on console in the automobile On.Fig. 1 is referred to, the holding brake device shown in Fig. 1 is installed on console, including braking parts and for operating braking parts The brake operating portion whether being braked, accommodating intracavity of the braking parts located at in-car corresponding position, the brake operating The lower end in portion is connected to coordinate braking, via of the upper end from the panel of accommodating top of chamber to pass with braking parts with the braking parts To expose to panel；The braking parts include the 3rd locking piece 10 and the brake component 12 coordinated with the brake operating portion； The brake operating portion includes that one is braked the motion arm 20 of cooperation, can be locked with the 3rd locking piece 10 with the brake component 12 The 4th locking piece 22 for only coordinating and the actuator 24 for driving the 4th locking piece 22 and the first locking piece locking to coordinate.

Have inside the concrete platform of control in the car for housing the containing cavity of 20 hypomere of brake portion and motion arm, containing cavity top The panel in portion is then central control panel, is provided with the via passed for motion arm 20 on central control panel.

The 4th action bars 202 that motion arm 20 is included the 3rd action bars 201 and is connected with 201 bending of the 3rd action bars, the The lower end of three action bars 201 is connected with the brake component 12 of preparing department.Wear from the via of central control panel the upper end of the 3rd action bars 201 Go out and expose to central control panel.The upper end bending of the lower end of the 4th action bars 202 and the 3rd action bars 201 is connected, and they can one Body shapes.In prior art, the 3rd action bars 201 and the 4th action bars 202 are straight-bar, and overall is in bending, accordingly, it would be desirable to Sufficiently large via is opened up on panel, the 4th locking piece 22 can just departed from the 3rd locking piece 10, Ran Houzai in braking Lifting motion arm 20 is braked.Larger via needs large-area enough covering（For example using leatherware etc.）Come The via is covered, increases cost；Larger via needs large-area enough panel to support, and increased design area, in-car Structural compactness is relatively low, it is impossible to meet requirement of the user to in-car topology layout compactedness, reduces user satisfaction.

In addition, 24 direct employing mechanical driven of actuator of the prior art, i.e. actuator 24 includes length and motion arm 20 the 3rd push rods 241 for matching, the upper end of the 3rd push rod 241 are provided with button 242, and the 4th locking piece 22 is rotated by the 4th Axle is installed on the lower end of the 3rd push rod 241 and can rotate around the 4th rotary shaft.

Braking principle is as follows：When needing to brake, press the button 242, button 242 promote mechanical 3rd push rod 241 so that 4th locking piece 22 of mechanical 3rd push rod, 241 lower end departs from the 3rd locking piece 10, while pulling the 4th action bars 202 upwards To drive the drag-line of brake portion, so that brake-shoe is pressed on wheel hub, button is then unclamped, now the 4th locking piece 22 is stuck in Corresponding position on 3rd locking piece 10, realizes braking.Equally push button when releasing braking, button promotes the 3rd push rod 241 Promote latch to depart from castellated plates, pull operation handle and return to home position, drive drag-line that brake-shoe is departed from wheel hub, braking solution Remove.By the way of mechanical driven, with following defect：Each part of actuator 24 is adopted and is mechanically connected, with use Time is continuously increased, and the problems such as between mechanical parts because of aging, service life, causes at each machinery especially the 3rd Interim card between the cooperation between push rod 241, the 3rd push rod 241 and the 4th locking piece 22, the problems such as there is abnormal sound etc., causes to promote not Flexibly and then the problems such as cause the cooperation between the 4th locking piece 22 and the 3rd locking piece 10 interim card occur, need more when serious Change whole actuator 24, motion arm etc..

Utility model content

For above-mentioned the deficiencies in the prior art, technical problem to be solved in the utility model is：There is provided one kind to subtract Small vias area, make the greater compactness of holding brake device of in-car relevant position topology layout and motor vehicles.

For solving above-mentioned technical problem, the technical scheme that this utility model is adopted is：A kind of parking braking dress is provided Put, including braking parts and the brake operating portion for operating braking parts whether to be braked, the braking parts are located at in-car phase The accommodating intracavity at position, the lower end in the brake operating portion is answered to be connected with the braking parts to coordinate braking with braking parts, on Via of the end from the panel of accommodating top of chamber passes to expose to panel；The braking parts include matching somebody with somebody with the brake operating portion The first locking piece for closing and a brake component；The brake operating portion include one with the brake component brake coordinate motion arm, Can be with the second locking piece of the first locking piece locking cooperation and for the second locking piece of driving and the first locking piece lock The actuator for only coordinating；

The motion arm is integrally C-shaped, and which includes the first motion arm and the second motion arm；First motion arm is inclined Shape, its lower beveled end are connected cooperation with the brake component of the braking parts, and upper beveled end is to first side away from the braking parts To and upwardly extend, on this beveled end be located at the accommodating intracavity at the position of panel；Second motion arm is curved, Its lower end is connected with the upper beveled end of first motion arm, upper end to first in opposite direction second direction and Upwardly direction passes the panel to expose to panel.

Used as optimization, first locking piece includes substrate, and the substrate is towards beveled end side on first motion arm To side be evagination arcwall face, the arc length direction uniform intervals along the evagination arcwall face on the evagination arcwall face are arranged Some first teeth forming the field of conjugate action being engaged with second locking piece；Second locking piece is can to engage with described The locking plate of face occlusion.

Used as optimization, the actuator is the hydraulic-driven dress for promoting the locking plate to be engaged with the field of conjugate action Put；The motion arm has through its length direction and the inner chamber for housing the fluid pressure drive device, the hydraulic-driven Device include the first push rod, the first return spring, active hydraulic structure, passive hydraulic structure, be connected to active hydraulic structure and Oil pipe, the second return spring and the second push rod between passive hydraulic structure；

The active hydraulic structure located at first motion arm inner chamber near upper end termination position at, including master Hydrodynamic pressure cylinder body, the first piston in the active hydraulic cylinder and active hydraulic chamber, the oil inlet end of the oil pipe with described The oil outlet end connection of active hydraulic chamber, the inner end of the first piston are inserted in the active hydraulic chamber, and described first The outer end of piston is connected with the inner end of first push rod, and the outer end of first push rod exposes to the upper of first motion arm End face, the outer end of first push rod is big end, and inner end is small end, and first return spring is arranged in first push rod On small end and positioned between its big end and first piston；

The passive hydraulic structure located at second motion arm inner chamber near the first locking piece position at, including The passive hydraulic cylinder connected with the oil outlet end of the oil pipe, the passive hydraulic chamber and second being located in passive hydraulic cylinder Piston, in the passive hydraulic chamber, the first end of second push rod is inserted in institute to the first end of the second piston State in active hydraulic cylinder and be connected with the second end of second piston, the second end of second push rod and the company of the locking plate End connection is connect, second return spring is arranged in the upper of second push rod and is located in the passive hydraulic cylinder；

The first rotary shaft is provided with the position of the field of conjugate action on second motion arm, the locking plate sets In first rotary shaft and can be around the first rotary shaft axis rotation, the one end on the locking plate away from its connection end be Locking end, the locking end have the second tooth that can be engaged with the field of conjugate action.

Used as optimization, the motion arm section takes the shape of the letter U, C-shaped.

Used as optimization, the motion arm is circular cross-section, rectangle, polygonal hollow operations arm.

As optimization, the upper end of first motion arm be arranged with one for for user's gripping handle.

As optimization, corresponding depression at the position on the handle corresponding to user's finger finger pulp, is provided with.

As optimization, the brake operating portion also include the upper end for being inserted in first motion arm and with the first push rod The button of outer end connection, the button there is the external diameter with first push rod to match towards the one side of first push rod Mounting groove, the outer end of first push rod are installed in the mounting groove.

Used as optimization, the brake component includes second rotary shaft in the same direction with first rotary shaft, upper end located at the Drag-line arm in two rotary shafts and the drag-line located at the lower end of the second rotary shaft；The lower end of second motion arm is fixedly arranged on institute State in the second rotary shaft, when the first motion arm is lifted upwards, drive the second motion arm to first direction and downward-sloping, the Two motion arms drive the lower end that second rotary shaft turns clockwise to drive the drag-line arm with the direction of the second rotary shaft Rotate, so as to tense drag-line to realize braking.

For solving above-mentioned technical problem, the technical scheme that this utility model is adopted is：A kind of motor vehicles are provided, including Holding brake device as claimed in claim.

Holding brake device of the present utility model, the mistake needed by central control panel using circular arc control arm, control arm Hole area is greatly reduced, and console arrangement can be allowed compacter, arranged convenient.The hole area of via can be greatly reduced, Make in-car layout structure more compact.

Description of the drawings

In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, below will be to embodiment Or accompanying drawing to be used is briefly described needed for description of the prior art, it should be apparent that, drawings in the following description are only It is some embodiments of the present utility model, for those of ordinary skill in the art, in the premise for not paying creative work Under, can be with according to these other accompanying drawings of accompanying drawings acquisition.

Fig. 1 is the structural representation of holding brake device in prior art.

Fig. 2 is the structural representation of one embodiment of this utility model holding brake device.

Fig. 3 is the top view of Fig. 2.

Specific embodiment

Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of this utility model, rather than whole Embodiment.Embodiment in based on this utility model, those of ordinary skill in the art are not under the premise of creative work is made The every other embodiment for being obtained, belongs to the scope of this utility model protection.

Fig. 2 and Fig. 3 is referred to, the holding brake device of this utility model embodiment includes braking parts and makes for operating The brake operating portion whether dynamic portion is braked, accommodating intracavity of the braking parts located at in-car corresponding position, the braking The lower end of operating portion is connected to coordinate braking, via of the upper end from the panel of accommodating top of chamber with braking parts with the braking parts Pass to expose to panel.The braking parts include the first locking piece 3 and the brake component coordinated with the brake operating portion 4；The brake operating portion includes that one is braked the motion arm 5 of cooperation, can be locked with first locking piece 3 with the brake component 4 The second locking piece 6 for only coordinating and the actuator 7 for driving the second locking piece 6 and 3 locking of the first locking piece to coordinate；Described Motion arm 5 is overall C-shaped, and which includes the first motion arm 51 and the second motion arm 52；First motion arm 51 is oblique, its Lower beveled end is connected cooperation with the brake component 4 of the braking parts, upper beveled end to first direction away from the braking parts and Upwardly extend, on this beveled end be located at the accommodating intracavity at the position of panel；Second motion arm 52 is curved, its Lower end is connected with the upper beveled end of first motion arm 51, upper end to first in opposite direction second direction and Upwardly direction passes the panel to expose to panel.

In this example, with braking parts as reference standard, first direction is braking parts right direction（With to right side Direction is described to the right）, second direction is braking parts left direction（Hereinafter carry out with left direction or to the left Description）, such description is able to make description consistent with Fig. 2, makes description become apparent from more succinct elaboration the present embodiment Structure, but such description be not limited to protection domain of the present utility model, for example in certain embodiments, first Individual direction can also be braking parts left direction, and second direction is then corresponding right direction for braking parts etc..

In this programme, the braking parts, second locking piece 6 in brake operating portion and actuator 7 can be adopted in Fig. 1 In structure or prior art, any one can realize the braking parts of the holding brake device of same or similar function, the second lock Stop member 6 and the structure of actuator 7.The present embodiment only needs the shape of the first motion arm of simple modifications 51, makes the first motion arm 51 in circular arc, the shape of the second motion arm 52 and length, makes the second motion arm 52 be located at the accommodating intracavity under panel, makes the The lower end of one motion arm 51 is located in the containing cavity, and makes the first motion arm 51 pass the face by the via on panel Plate.This improved procedure, can greatly reduce hole area, make the layout of in-car relevant position more compact, can save screening The consumption of shield, reduces cost.It is to second corresponding to the hole wall of the direction of motion of the first motion arm 51 to make the via on panel The inclined plane that direction inclines, can further reduce hole area, be compared with Fig. 2 by Fig. 1 and be can be seen that, the hole area in Fig. 2 is big The earth is less than the hole area in Fig. 1.

In the present embodiment, the braking parts are installed in automobile the appearance being located under central control panel by a mounting structure Put in chamber（The containing cavity can be the containing cavity for aiming at preparing department's setting, it is also possible to the space being considered as in central control panel）. Specifically, the mounting structure includes two installation side frames 100 being parallel to each other, and is provided with peace in the bottom of two installation side frames 100 A few journal stirrup 102 is filled to, and installing hole is offered on the installation journal stirrup 102, when mounted, using installed part（Such as bolt Deng）The accommodating intracavity corresponding position is installed on after connecting hole through on journal stirrup 102.

The brake component 4 includes the second rotary shaft 41, drag-line arm 42 and drag-line 43；The lower end of second motion arm 52 It is fixedly arranged in second rotary shaft 41.Second rotary shaft 41 is horizontally installed in the upper end of two installation side frames 100 can Around its axis rotation, Fig. 3 is referred to, second rotary shaft 41 is substantially of a lateral H shape with two vertical views for installing side frame 100.The drawing In second rotary shaft 41, lower end is connected with one end of the drag-line 43 for the upper end of rope arm 42, the drag-line 43 another One end is connected to the right side extension of braking parts with the brake with vehicle.

First locking piece 3 is corresponded at the position of the second locking piece 6 on the mounting structure.Specifically, institute Stating the first locking piece 3 includes substrate 31, and the substrate 31 is outer towards the side in beveled end direction on first motion arm 51 Convex face（I.e. basic right flank and upper surface are integrally formed evagination arcwall face, or basic right flank and upper surface Right part be integrally formed outer convex globoidal）.On the evagination arcwall face along the evagination arcwall face arc length direction uniform intervals Some first teeth for arranging are forming the field of conjugate action 32 being engaged with second locking piece 6.

The motion arm 5 can adopt circular cross-section, rectangle, polygonal hollow operating stem, or can adopt section Take the shape of the letter U or C-shaped etc..The upper end of first motion arm 51 be arranged with one for for user gripping handle 8, in the handss It is recessed corresponding to being provided with the position of user's finger finger pulp accordingly on handle 8.

In the present embodiment, second motion arm 52 to the right and be inclined upwardly while, its section width is also gradually increased, So that the section of the second motion arm 52 is in horn-like or open-like shape.First motion arm 51 have connect with the second motion arm 52 The segmental arc for connecing, the lower end of segmental arc are connected with the bending of the second motion arm 52, and upper end upwards and is tilted to the left and exposes to described Panel, first motion arm 51 also have the straight portions formed by the upper end bending of segmental arc, between straight portions and segmental arc 150～180 degree of angle.It is so designed that, more meet ergonomics, straight portions more convenient user grip, and operation handle 8 is set in Part of the straight portions near termination, in production operation handle 8, it is not necessary to operation handle 8 is designed as arc, production technology is more Simply, molding is more convenient, and can more save manufacturing cost.

The actuator 7 is the fluid pressure drive device for promoting the locking plate to be engaged with the field of conjugate action 32；Described Motion arm 5 has through its length direction and the inner chamber for housing the fluid pressure drive device（If motion arm 5 is hollow operations Bar, then the inner chamber is then hollow space, if C-shaped action bars or U-shaped action bars, then be then c-type or U-shaped chamber groove）, institute Stating fluid pressure drive device includes the first push rod 71, the first return spring 72, active hydraulic structure 76, passive hydraulic structure 77, company It is connected to active hydraulic structure 76 and oil pipe 73 passively between hydraulic structure 77, the second return spring 74 and the second push rod 75；

The active hydraulic structure 76 at the position of upper end termination, is wrapped in the inner chamber of first motion arm 51 Include active hydraulic cylinder 761, the first piston 763 in active hydraulic cylinder 761 and active hydraulic chamber 762, the oil The oil inlet end of pipe 73 is connected with the oil outlet end of the active hydraulic chamber 762, and the inner end of the first piston 763 is inserted in described In active hydraulic chamber 762, the outer end of the first piston 763 is connected with the inner end of first push rod 71, and described first pushes away The outer end of bar 71 exposes to the upper surface of first motion arm 51, and the outer end of first push rod 71 is big end, and inner end is little End, first return spring 72 be arranged on the small end of first push rod 71 and be located at its big end and first piston 763 it Between.

The passive hydraulic structure 77 is in the inner chamber of second motion arm 52 near the position of the first locking piece 3 Place, including connect with the oil outlet end of the oil pipe 73 passive hydraulic cylinder 771, be located at passive hydraulic cylinder 771 in passive Hydraulic chamber 772 and second piston 773, the first end of the second piston 773 are located in the passive hydraulic chamber 772, The first end of second push rod 75 is inserted in the active hydraulic cylinder 761 and is connected with the second end of second piston 773, Second end of second push rod 75 is connected with the connection end of second locking piece 6, and second return spring 74 is arranged in Second push rod 75 upper is simultaneously located in the passive hydraulic cylinder 771.

The first rotary shaft 9 is provided with the position of the field of conjugate action 32 on the inwall of second motion arm 52, In the present embodiment, the motion arm 5 is C-shaped action bars, the first rotary shaft 9 and second rotary shaft 41 in the same direction, i.e., they Diameter parallel.Second locking piece 6 is the locking plate that can be engaged with the field of conjugate action 32, and the lower end of the locking plate is company Connect end, the second end of second push rod 75 is then connected with the connection end of the locking plate, the upper end of the locking plate located at this In one rotary shaft 9 and can be around 9 axis rotation of the first rotary shaft, the upper end of the locking plate be locking end, the locking end There is the second tooth 61 that can be engaged with the field of conjugate action 32.The connection end of the locking plate is with the field of conjugate action 32 in non-brake shape The length under state with certain distance, its spacing mainly departs from the teeth groove correlation in the evagination field of conjugate action 32 according to the second tooth 61, this Excessive restriction is not made in place.

In the present embodiment, in order to convenient user promotes the first push rod 71, the brake operating portion also includes being inserted in The upper end of first motion arm 51 and the button 200 being connected with the outer end of the first push rod 71, the button 200 is towards described The one side of one push rod 71 has the mounting groove that the external diameter with first push rod 71 matches, the outer end peace of first push rod 71 Loaded in the mounting groove.

The operation principle of the parking brake of the present embodiment is as follows：When vehicle parking needs parking, user's holding operation Handle 8, press ＆ hold 200 the first push rods of promotion 71, and the first push rod 71 drives the motion extruding active hydraulic chamber of first piston 763 Fluid inside 762, fluid enter passive hydraulic cavities by oil pipe 73, so as to promote second piston 773 to drive the second push rod 75 Locking plate is pushed away the first locking piece 3（Even if the second tooth 61 of locking plate leaves the teeth groove of the first locking piece 3）；Then, user Continue while pressing keys 200, to lift the first motion arm 51 upwards, drive the second motion arm 52 to first direction and downward Incline, the second motion arm 52 drives second rotary shaft 41 to turn clockwise to drive the lower end of the drag-line arm 42 with second The direction of rotary shaft 41 rotates, and so as to tense drag-line 43 to realize braking, then unclamps button 200, the first return spring 72 and Second return spring 74 helps 75 return of the first push rod 71 and the second push rod, so that button 200 resets.

When braking is released, user's holding operation handle 8, pressing ＆ hold 200 promotes the first push rod 71, the first push rod again 71 drive the fluid inside the motion extruding active of first piston 763 hydraulic chamber 762, fluid to enter by hydrodynamic pressure by oil pipe 73 Chamber, so as to promote second piston 773 to drive the second push rod 75 that locking plate is pushed away the first locking piece 3, user continues pressing keys Make the first motion arm 51 move downward reset while 200, drive the second motion arm 52 to first direction and downward-sloping, the Two motion arms 52 drive 41 rotate counterclockwise of the second rotary shaft to drive the lower end of the drag-line arm 42 with the second rotary shaft 41 direction rotates, so as to unclamp drag-line 43 to release braking, then release button 200, and the first return spring 72 and second time Position spring 74 helps 75 return of the first push rod 71 and the second push rod, so that button 200 resets.

Holding brake device of the present utility model, the mistake needed by central control panel using circular arc control arm, control arm Hole area is greatly reduced, and console arrangement can be allowed compacter, arranged convenient.The hole area of via can be greatly reduced, Make in-car layout structure more compact.In addition, actuator 7 adopts hydraulic-driven, it is with Mechanical Driven is compared, more smooth more stable, It is not in the aging situation of component of machine.

The invention also discloses a kind of motor vehicles, the driving car includes the holding brake device of above-described embodiment.Described Holding brake device is mountable at the control panel of motor vehicles, is also mountable at the hollow position between two front-seat positions.

Embodiment of the present utility model is these are only, the scope of the claims of the present utility model, every profit is not thereby limited The equivalent structure that is made with this utility model description and accompanying drawing content or equivalent flow conversion, or directly or indirectly it is used in which The technical field of his correlation, is included in scope of patent protection of the present utility model in the same manner.

Claims (10)

1. a kind of holding brake device, including braking parts and the brake operating portion for operating braking parts whether to be braked, Accommodating intracavity of the braking parts located at in-car corresponding position, the lower end in the brake operating portion be connected with the braking parts with Braking, via of the upper end from the panel of accommodating top of chamber is coordinated to pass to expose to panel with braking parts；The braking parts bag Include the first locking piece and a brake component coordinated with the brake operating portion；The brake operating portion includes one with the braking Part brakes the motion arm for coordinating, the second locking piece that can coordinate with the first locking piece locking and for the second lock of driving The actuator that stop member is coordinated with the first locking piece locking；It is characterized in that：

The motion arm is integrally C-shaped, and which includes the first motion arm and the second motion arm；First motion arm is oblique, Its lower beveled end is connected cooperation with the brake component of the braking parts, upper beveled end to first direction away from the braking parts and Upwardly extend, on this beveled end be located at the accommodating intracavity at the position of panel；Second motion arm is curved, under which End is connected with the upper beveled end of first motion arm, and upper end is to first in opposite direction second direction and upwards Direction pass the panel to expose to panel.

2. holding brake device as claimed in claim 1, it is characterised in that：First locking piece includes substrate, the base Plate is evagination arcwall face towards the side in beveled end direction on first motion arm, along described outer on the evagination arcwall face Some first teeth that the arc length direction uniform intervals in convex face are arranged are forming the field of conjugate action being engaged with second locking piece； Second locking piece is the locking plate that can be engaged with the field of conjugate action.

3. holding brake device as claimed in claim 2, it is characterised in that：The actuator is for promoting the locking plate The fluid pressure drive device being engaged with the field of conjugate action；The motion arm has through its length direction and is used for housing the hydraulic pressure The inner chamber of driving means, the fluid pressure drive device include the first push rod, the first return spring, active hydraulic structure, by hydrodynamic Laminated structure, the oil pipe being connected between active hydraulic structure and passive hydraulic structure, the second return spring and the second push rod；

The active hydraulic structure located at first motion arm inner chamber near upper end termination position at, including active liquid Cylinder pressure body, the first piston in active hydraulic cylinder and active hydraulic chamber, the oil inlet end of the oil pipe and the active The oil outlet end connection of hydraulic chamber, the inner end of the first piston are inserted in the active hydraulic chamber, the first piston Outer end be connected with the inner end of first push rod, the outer end of first push rod exposes to the upper end of first motion arm Face, the outer end of first push rod is big end, and inner end is small end, and first return spring is arranged in the little of first push rod On end and positioned between its big end and first piston；

The passive hydraulic structure located at second motion arm inner chamber near the first locking piece position at, including with institute State the passive hydraulic cylinder of the oil outlet end connection of oil pipe, the passive hydraulic chamber in passive hydraulic cylinder and second to live Plug, in the passive hydraulic chamber, the first end of second push rod is inserted in described for the first end of the second piston It is connected in active hydraulic cylinder and with the second end of second piston, the second end of second push rod and the connection of the locking plate End connection, second return spring are arranged in the upper of second push rod and are located in the passive hydraulic cylinder；

The first rotary shaft is provided with second motion arm at the position of the field of conjugate action, and the locking plate is located at should In first rotary shaft and can be around the first rotary shaft axis rotation, the one end on the locking plate away from its connection end be locking End, the locking end have the second tooth that can be engaged with the field of conjugate action.

4. holding brake device as claimed in claim 1, it is characterised in that：The motion arm section takes the shape of the letter U, C-shaped.

5. holding brake device as claimed in claim 1, it is characterised in that：The motion arm is circular cross-section, rectangle, many The hollow operations arm of side shape.

6. holding brake device as claimed in claim 1, it is characterised in that：One is arranged with the upper end of first motion arm For the handle gripped for user.

7. holding brake device as claimed in claim 6, it is characterised in that：User's finger finger pulp is corresponded on the handle Position at be provided with corresponding depression.

8. holding brake device as claimed in claim 1, it is characterised in that：The brake operating portion also includes being inserted in described The upper end of the first motion arm and the button being connected with the outer end of the first push rod, a mask of the button towards first push rod There are the mounting groove that the external diameter with first push rod matches, the outer end of first push rod to be installed in the mounting groove.

9. holding brake device as claimed in claim 3, it is characterised in that：The brake component includes one with the described first rotation Axle the second rotary shaft in the same direction, upper end drag-line arm and the drawing located at the lower end of the second rotary shaft in the second rotary shaft Rope；The lower end of second motion arm is fixedly arranged in second rotary shaft, when the first motion arm is lifted upwards, drives second Motion arm is to first direction and downward-sloping, and it is described to drive that the second motion arm drives second rotary shaft to turn clockwise The lower end of drag-line arm is rotated with the direction of the second rotary shaft, so as to tense drag-line to realize braking.

10. a kind of motor vehicles, it is characterised in that：Including holding brake device as claimed in any one of claims 1-9 wherein.