CN106985800A - Brake apparatus and road cleaner - Google Patents

Abstract

The present invention relates to vehicle brake technology field, more particularly to a kind of brake apparatus and road cleaner.Brake apparatus provided by the present invention, link gear, the second manipulation link gear with handle and the arrestment mechanism with brake are manipulated including first with pedal, first manipulates link gear and arrestment mechanism drive connection, second, which manipulates link gear and first, manipulates link gear drive connection, wherein：When pedal be operated and handle not when pulled, first manipulates link gear driving arrestment mechanism, brake is in on-position, realizes running braking function；When being pulled up after handle is operated in pedal, the second manipulation link gear manipulates link gear to make brake be held in on-position by locking first, realizes parking braking function.The present invention need not recycle two sets of arrestment mechanisms independent of each other to realize running braking function and parking braking function respectively, and structure is simpler, safeguard and more facilitate.

Description

Brake apparatus and road cleaner

Technical field

The present invention relates to vehicle brake technology field, more particularly to a kind of brake apparatus and road cleaner.

Background technology

The brake apparatus of vehicle (engineering truck such as road cleaner), generally includes service brake mechanism and parking system Motivation structure, wherein, service brake mechanism is used in the process of moving control vehicle deceleration and parking in real time, is easy in the state of emergency Under realize brake hard, improve travel safety；Parking and braking mechanism is then used to be braked when long-time is stopped, it is ensured that car Park reliable in situ, prevents vehicle automatic sliding.

In the prior art, service brake mechanism and parking and braking mechanism are usually two sets of arrestment mechanisms independent of each other, this Causing current brake apparatus generally to exist, structure is complex, maintenance difficulties are higher, arrange that more inconvenience and cost are higher Etc. many problems.

Moreover, existing service brake mechanism, generally uses Manual hydraulic arrestment mechanism, i.e. generally include pedal, system Dynamic master cylinder, wheel cylinder and brake drum etc., during work, by stepping on pedal, drive master cylinder that brake fluid is pressed into wheel cylinder, make system Dynamic drum produces braking moment.This Manual hydraulic arrestment mechanism, once air inlet in its hydraulic system, it will influence pressure Rise, or even causes service brake mechanism entirely ineffective, also, its functional reliability by brake fluid quality good or not influenceed compared with Greatly, on the one hand these cause the functional reliability of service brake mechanism relatively low, on the other hand the structure also to service brake mechanism And maintenance work proposes higher requirement, have to prevent air intrusion simultaneously in the structure that service brake mechanism is not required nothing more than Invading air can be discharged, and also need to drain the air in hydraulic system during installation and debugging, also require to enter service brake mechanism Row time-based maintenance, causes that the structure of service brake mechanism is more complicated, and maintenance difficulties are bigger.

The content of the invention

A technical problem to be solved by this invention is：The brake apparatus of existing vehicle, its service brake mechanism is with staying Car arrestment mechanism is usually two sets of arrestment mechanisms independent of each other, and structure is complex, and maintenance difficulties are higher.

In order to solve the above-mentioned technical problem, the invention provides a kind of brake apparatus for vehicle, it is included with pin The first of pedal manipulates link gear, the second manipulation link gear with handle and the arrestment mechanism with brake, the One manipulates link gear and arrestment mechanism drive connection, and second, which manipulates link gear and first, manipulates link gear drive connection, Wherein：When pedal be operated and handle not when pulled, first manipulates link gear driving arrestment mechanism, makes at brake In on-position, running braking function is realized；When being pulled up after handle is operated in pedal, second, which manipulates link gear, leads to Cross locking first to manipulate link gear to make brake be held in on-position, realize parking braking function.

Alternatively, the first manipulation link gear also includes rachet drive connection between arrestment mechanism and pedal, Second manipulation link gear also includes the ratchet being connected with handle drives, and rachet and ratchet can turn both with respect to the vehicle frame of vehicle Set dynamicly, rachet can rotate when pedal is operated relative to vehicle frame, ratchet can be in handle when pulled Rotated relative to vehicle frame, when being pulled up after handle is operated in pedal, ratchet is engaged with rachet, realizes the second behaviour Vertical link gear is to the first locking for manipulating link gear.

Alternatively, the second manipulation link gear also includes the first traction piece being connected between ratchet and handle, and first leads Draw part and pull ratchet during handle is pulled, ratchet is rotated relative to vehicle frame.

Alternatively, the first traction piece includes the first flexible axle.

Alternatively, first link gear is manipulated also including the first elastic component, the first elastic component is used to apply rachet and made The elastic force that rachet resets.

Alternatively, second link gear is manipulated also including the second elastic component, the second elastic component, which is used to apply ratchet, makes spine The elastic force that pawl resets.

Alternatively, brake apparatus also includes parked state detection means, and parked state detection means is used in parking braking During by detect ratchet and rachet whether engage detect brake apparatus whether be in parking braking state.

Alternatively, parked state detection means includes one in trigger member and detection switch, trigger member and detection switch It can be rotated with rachet together relative frame and another can be rotated with ratchet together relative frame, when ratchet and spine When tooth manipulates link gear locking by engagement by first, detection switch is come in contact with trigger member, and detection switch is touched Outbox is triggered.

Alternatively, detection switch can be rotated with ratchet together relative frame, and trigger member can be with rachet together Relative frame is rotated, and trigger member pressure is located at the side of the remote vehicle frame of rachet.

Alternatively, when pedal is not operated and handle not when pulled, ratchet is engaged with rachet.

Alternatively, arrestment mechanism is also mechanical between brake and first manipulate link gear including drive connection Transmission mechanism, mechanical transmission mechanism is used to drive brake to switch to on-position when pedal is operated.

Alternatively, arrestment mechanism includes two brakes, two wheels of two brakes respectively with vehicle frame both sides Set correspondingly；Mechanical transmission mechanism includes the second traction piece, branch block and two the 3rd traction pieces, the second traction piece First end manipulate link gear drive connection with first, the second end of the second traction piece passes through branch block and two the 3rd tractions Part is connected, and two the 3rd traction pieces are connected correspondingly with two brakes respectively, when pedal is operated, and second leads Two the 3rd traction pieces can be pulled by branch block by drawing part, two brakes is switched to on-position.

Alternatively, the first end of the second traction piece is connected with the rachet of the first manipulation link gear.

Alternatively, the second traction piece includes the second flexible axle；And/or, the 3rd traction piece includes the 3rd flexible axle.

Another aspect of the present invention additionally provides a kind of road cleaner, and it includes the brake apparatus of vehicle frame and the present invention.

Brake apparatus provided by the present invention, it has the first of pedal to manipulate link gear and second with handle Manipulate link gear and share a set of arrestment mechanism with brake, first manipulates link gear can be in pin with arrestment mechanism Coordinate when pedal is operated and realize running braking function, and first manipulates link gear, the second manipulation link gear and brake Coordinate structure can be first operated in pedal and handle is subsequently pulled up again when and realize parking braking function, so that braking dress Two sets of arrestment mechanisms independent of each other need not be recycled to realize running braking function and parking braking function respectively by putting, and structure is more Plus it is simple, safeguard and more facilitate.

Be described in detail by the exemplary embodiment referring to the drawings to the present invention, further feature of the invention and Its advantage will be made apparent from.

Brief description of the drawings

In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing There is the accompanying drawing used required in technology description to be briefly described, it should be apparent that, drawings in the following description are only this Some embodiments of invention, for those of ordinary skill in the art, without having to pay creative labor, may be used also To obtain other accompanying drawings according to these accompanying drawings.

Fig. 1 shows scheme of installation of the brake apparatus of one embodiment of the invention on vehicle.

Fig. 2 shows the schematic perspective view of partial structurtes in Fig. 1.

Fig. 3 shows structural representation when brake apparatus is not braked in Fig. 2.

Fig. 4 shows the A-A sectional views in Fig. 3.

Fig. 5 shows the B-B sectional views in Fig. 3.

Fig. 6 shows the exploded perspective view of handle mechanism.

Fig. 7 shows structural representation when brake apparatus is in service brake state in Fig. 2.

Fig. 8 shows structural representation when brake apparatus is in parking braking state in Fig. 2.

In figure：

11st, pedal；12nd, rachet；13rd, the first spring；

21st, handle mechanism；22nd, the first flexible axle；23rd, the first flexible axle supporting plate；24th, connecting plate；25th, ratchet；26th, the second bullet Spring；

31st, the second flexible axle；32nd, the second flexible axle supporting plate；33rd, branch block；34th, the 3rd flexible axle；

4th, mounting seat；

51st, trigger member；52nd, detection switch；

61st, the first axle sleeve；62nd, the first plain cushion；63rd, the first spring washer；64th, the first nut；65th, the first bolt；

71st, the second axle sleeve；72nd, the second plain cushion；72nd, the second spring washer；73rd, the second nut；74th, the second bolt；

8th, vehicle frame；

211st, handle；212nd, handle box；213rd, flap；214th, the 3rd axle sleeve；215th, the 3rd plain cushion；216th, the 3rd bolt； 217th, the 3rd nut；218th, installing plate.

Embodiment

Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.Below Description only actually at least one exemplary embodiment is illustrative, is never used as to the present invention and its application or makes Any limitation.Based on the embodiment in the present invention, those of ordinary skill in the art are in no development creative work premise Lower obtained every other embodiment, belongs to the scope of protection of the invention.

It may be not discussed in detail for technology, method and apparatus known to person of ordinary skill in the relevant, but suitable In the case of, the technology, method and apparatus should be considered as authorizing a part for specification.

In the description of the invention, it is to be understood that the noun of locality such as " forward and backward, upper and lower, left and right ", " laterally, vertical, Vertically, orientation or position relationship indicated by level " and " top, bottom " etc. are normally based on orientation shown in the drawings or position and closed System, is for only for ease of the description present invention and simplifies description, in the case where not making opposite explanation, these nouns of locality are not indicated that There must be specific orientation or with specific azimuth configuration and operation with the device or element for implying meaning, therefore can not manage Solve as limiting the scope of the invention；The noun of locality " inside and outside " refers to relative to inside and outside each part profile in itself.

In the description of the invention, it is to be understood that limit parts using the word such as " first ", " second ", only It is for only for ease of and corresponding parts is distinguished, such as without Stated otherwise, above-mentioned word does not have particular meaning, therefore not It is understood that as limiting the scope of the invention.

Fig. 1-Fig. 8 shows the one embodiment of the present invention for the brake apparatus of vehicle.Reference picture 1- Fig. 8, the present invention The brake apparatus provided, including the with pedal 11 first manipulation link gear, the second manipulation linkage with handle 211 Mechanism and the arrestment mechanism with brake, first manipulates link gear and arrestment mechanism drive connection, and second manipulates linkage Mechanism manipulates link gear drive connection with first, wherein：When pedal 11 be operated and handle 211 not when pulled, first Link gear driving arrestment mechanism is manipulated, brake is in on-position, realizes running braking function；When handle 211 exists When pedal 11 is pulled up after being operated, the second manipulation link gear manipulates link gear to make brake by locking first On-position is held in, parking braking function is realized.

Brake apparatus provided by the present invention, it has the first of pedal 11 to manipulate link gear with having handle 211 The second manipulation link gear share a set of arrestment mechanism with brake, first manipulates link gear and arrestment mechanism energy Running braking function is realized in enough cooperations when pedal 11 is operated, and first manipulates link gear, the second manipulation link gear It can be first operated in pedal 11 with arrestment mechanism and handle 211 is follow-up and parking braking function is realized in cooperation when being pulled up, So cause brake apparatus that two sets of arrestment mechanisms independent of each other need not be recycled to realize running braking function and parking respectively Braking function, structure is simpler, safeguards and more facilitates.

Moreover, when the brake apparatus of the present invention realizes parking braking function, need to first step on pedal 11, then pull-up handle 211, this more meets the common operating habit of operator, and the operator that is not only more convenient for uses, and improves parking efficiency, and security It is higher, help to realize relatively reliable parking braking process.

In order to realize the second manipulation link gear pedal 11 be first operated and handle 211 is follow-up but when being pulled up to the One manipulates the locking of link gear, and then realizes parking braking function, in the present invention it is possible to which the first manipulation link gear is also wrapped Rachet 12 of the drive connection between arrestment mechanism and pedal 11 is included, second, which manipulates link gear, also includes and handle 211 The ratchet 25 of drive connection, and rachet 12 and ratchet 25 both with respect to vehicle vehicle frame 8 rotatably arranged with the energy of rachet 12 Enough to be rotated when pedal 11 is operated relative to vehicle frame 8, ratchet 25 can be in handle 211 when pulled relative to vehicle frame 8 are rotated, and when being pulled up after handle 211 is operated in pedal 11, ratchet 25 is engaged with rachet 12.

The present invention first by manipulating setting rachet 12 and the setting in the second manipulation link gear in link gear Ratchet 25 so that anti-reverse when brake apparatus can be engaged using ratchet 25 with rachet 12 acts on realizing that the second manipulation joins Motivation structure is to the first monodirectional locking for manipulating link gear so that nibbled once handle 211 is pulled to ratchet 25 with rachet 12 During conjunction, even if unclamping pedal 11 again, brake, which is remained on, is held in on-position, without being released with pedal 11 And non-brake state is switched to, so as to effectively prevent vehicle automatic sliding, realize reliable parking braking process.Moreover, by In when because of generation abrasion, the gap between wheel of vehicle increases brake, ratchet 25 can be during parking braking Automatically engaged with next tooth of claw plate 12, reduce the gap between brake and wheel, brake is remained to reliably Ground prevents vehicle wheel rotation, therefore, and the present invention realizes the second manipulation link gear pair using engaging for ratchet 25 and rachet 12 First manipulates the locking of link gear, can also realize the adjust automatically to gap between brake and wheel, improves braking Efficiency.

In the present invention, can be with order that ratchet 25 can rotate relative to vehicle frame 8 when pulled in handle 211 Ratchet 25 is connected firmly with handle 211, or, the first traction piece can also be set between ratchet 25 and handle 211, led by first Draw part and ratchet 25 is pulled when handle 211 is pulled up, ratchet 25 is rotated relative to vehicle frame 8.Wherein, due to pedal 11 Operator foot is generally arranged at, position is relatively low, correspondingly, rachet 12 and ratchet 25 are generally also disposed at lower position, Therefore, the mode connected firmly according to ratchet 25 and handle 211, then the set location of handle 211 can be limited by the position of ratchet 25 System, so that handle 211 is also required to be arranged on lower position, is not easy to operator and uses；And connected according to the first traction piece Ratchet 25 and handle 211, because the first traction piece is flexibly connected between ratchet 21 and handle 211, therefore, it can reduce opponent The limitation of the set location of handle 211, makes handle 211 without being confined to the position of ratchet 25 again, and can be arranged in cab seat Side etc. be more convenient for operator operation position.It can be seen that, the mode being fixedly connected relative to ratchet 25 with handle 211 sets the One traction piece can be effectively increased the flexible arrangement of handle 211, operator's operation of being more convenient for.

In addition, the brake apparatus of the present invention can also include parked state detection means, parked state detection means is used for During parking braking by detect ratchet 25 and rachet 12 whether engage detect brake apparatus whether be in parking system Dynamic state.By setting parked state detection means, it can allow the operator to easily and timely know parking braking situation, And it is easy to control vehicle to restart according to the testing result of parked state detection means.

As a kind of embodiment of parked state detection means of the present invention, parked state detection means can include triggering One in part 51 and detection switch 52, trigger member 51 and detection switch 52 can be 8 turns with rachet 12 together relative frame It is dynamic and another can be rotated with ratchet 25 together relative frame 8, when ratchet 25 and rachet 12 by engaging by first When manipulating link gear locking, detection switch 52 is come in contact with trigger member 51, and the part 51 that is triggered of detection switch 52 is triggered.So The parked state detection means can reflect the detection switch of ratchet 25 and the relative rotation position of rachet 12 by detection Contact situation between 52 and trigger member 51 detects whether brake apparatus is in parking braking state, and detection process is more square Just, testing result is more accurate.Also, detection switch 52 can be electrically connected with the control device of vehicle, once detection switch 52 It is triggered because being contacted with trigger member 51, then detection signal can be transferred to control device by detection switch 52, by control device Control whether vehicle restarts according to detection signal, improve security during restarting.

In the present invention, brake apparatus can still use hydraulic means (such as hydraulic cylinder) drive connection in brake with Between first manipulation link gear, use hydraulics to be the action of brake by the conversion of motion of pedal 11, but be It is further to solve the problem of the braking reliability caused by using hydraulic means is relatively low, to pass present invention preferably employs mechanical Motivation structure replaces hydraulic means to realize the transmission between the first manipulation link gear and brake, i.e. set arrestment mechanism It is set to the mechanical transmission mechanism for also including drive connection between brake and the first manipulation link gear, the mechanical biography Motivation structure is used to drive brake to switch to on-position when pedal 11 is operated.Due to no longer setting hydraulic means, Therefore, the braking procedure of brake apparatus by air inlet and brake fluid quality without being influenceed again, and braking reliability is higher, is safeguarded Maintenance more facilitates, moreover, without being provided for preventing air from invading and for discharging the structure of invading air, braking again The overall structure of device is simpler, and cost is lower.

The present invention is described further with reference to the embodiment shown in Fig. 1-8.

As shown in figures 1-8, in this embodiment, brake apparatus includes the first manipulation link gear, the second manipulation gear Structure, arrestment mechanism and parking braking detection means, wherein, second manipulates link gear manipulates link gear and braking by first Mechanism drive connection；First manipulation link gear coordinates with arrestment mechanism realizes running braking function；Second manipulates link gear By the way that further locking first manipulates linkage after the first manipulation link gear and arrestment mechanism cooperation realize running braking function Mechanism realizes parking braking function；Parking braking detection means is used to detect parking braking state.

Arrestment mechanism controls the car of vehicle using switching of its brake between on-position and non-brake state Whether wheel rotates.As depicted in figs. 1 and 2, the arrestment mechanism of the embodiment includes mechanical transmission mechanism and two are used as braking The brake drum (not shown) of body.Two brake drums are with same vehicle bridge (being back axle in Fig. 1) positioned at the two of vehicle frame both sides Individual wheel is set correspondingly, and when brake drum switches to on-position, wheel stops operating, and vehicle stops traveling, is realized Braking.Mechanical transmission mechanism drive connection is manipulated in two brake drums and first between link gear, for first to be manipulated The conversion of motion of link gear is the action of two brake drums.

First manipulation link gear is used to control brake drum (brake) to cut between on-position and non-brake state Change.As shown in figures 1-8, the first of the embodiment, which manipulates link gear, includes pedal 11 and rachet 12, and pedal 11 passes through Rachet 12 and mechanical transmission mechanism drive connection, so that pedal 11 can lead to successively during being operated and unclamping Cross rachet 12 and mechanical transmission mechanism driving brake drum switches between on-position and non-brake state.Wherein, pin is worked as When pedal 11 is operated, the first manipulation link gear control brake drum switches to on-position.

Second, which manipulates link gear and first, manipulates link gear drive connection, for that need not brake and need in vehicle The manipulation of locking first link gear during parking braking is carried out, and is used for the release first when vehicle needs to carry out service brake manipulating Link gear, to meet vehicle in the demand without different conditions such as braking, service brake and parking brakings.Wherein, car is worked as When need not brake, second manipulates link gear manipulates link gear locking by be not manipulated first, can protect brake drum It is held in non-brake state so that vehicle being capable of more reliably normally travel and work；And when needing parking braking, second manipulates Link gear locks the first manipulation link gear that is being manipulated and driving brake drum (brake) to switch to after on-position It is fixed, then brake drum can be held in on-position, and then realize parking braking function.

As shown in Fig. 1-3 and Fig. 6-8, the second of the embodiment, which manipulates link gear, includes ratchet 25, with handle 211 Handle mechanism 21 and be connected between ratchet 25 and handle 211 and the first flexible axle 22 as the first traction piece, handle mechanism 21 pass sequentially through the first flexible axle 22 and the manipulation link gear drive connection of ratchet 25 and first.Wherein, ratchet 25 is used for and ratchet Part 12 coordinates, i.e. handle mechanism 21 passes sequentially through the first flexible axle 22 and ratchet 25 and first manipulates the rachet 12 of link gear Drive connection.Ratchet 25 and the engagement or disengagement of rachet 12, it is possible to achieve second manipulates link gear manipulates gear to first The locking or release of structure.Handle mechanism 21 is used to pull ratchet 25 to rotate by the first flexible axle 22, to control ratchet 25 and ratchet Part 12 is engaged and disengaged, and then controls to realize the second manipulation link gear to the first locking and release for manipulating link gear. In the embodiment, when pedal 11 is not operated and handle 211 is not pulled up, (i.e. vehicle need not enter ratchet 25 with rachet 12 During row braking) and pedal 11 be operated to make brake drum switch to on-position and handle 211 it is follow-up and when being pulled up (i.e. When vehicle needs parking braking) it is in engagement so that and second manipulates link gear can be by both cases Locking to the first manipulation link gear controls to make brake drum be held in non-brake state and on-position respectively, to meet respectively Normally travel and the demand of parking braking.

Specifically, from Fig. 2-4, in this embodiment, rachet 12 and ratchet 25 can both with respect to the vehicle frame 8 of vehicle Rotationally set, wherein：The first end of rachet 12 is fixedly connected with pedal 11, and the second end of rachet 12 is provided with multiple spine Tooth is simultaneously coordinated by this multiple ratchet and ratchet 25；Ratchet 25 is connected by the first flexible axle 22 with handle 211, and handle 211 is relative In vehicle frame 8 rotatably arranged with.Can be driven based on the setting, when pedal 11 is operated or is released rachet 12 relative to Vehicle frame 8 rotates, and handle 211 can rotate with pawl 25 relative to vehicle frame 8 when pulled, so that by manipulating Pedal 11 and handle 211, can control ratchet 25 and the engagement or disengagement of claw plate 12, make the second manipulation link gear lock or Release first manipulates link gear, and then controls brake drum to be held in on-position or non-brake state.

The ratchet 25 of the embodiment is in when pedal 11 is not operated and handle 211 is not pulled up with rachet 12 and nibbled Conjunction state, this not only can more reliably control brake drum to be held in non-brake state when vehicle need not be braked, and improve vehicle The security of normal work traveling, pedal 11 is not stepped on if being additionally, since in this case, and direct pull handle 211, then Handle 211 can be because ratchet 25 and rachet 12 be engaged and can not be pulled, i.e. such case lower handle 211 can not be in pin Pedal 11 is pulled up before being operated, therefore, and the setting ability stretchy handle 211 to realize after pedal 11 is operated Parking braking, ensures that brake drum is in reliable on-position so as to preferential, further improves parking braking reliability, and Operator's error operations handle 211 can effectively be prevented and undesirable parking braking is caused, parking safety is further improved.

The setting of rachet 12 and ratchet 25 for convenience, as shown in Fig. 2, Fig. 4 and Fig. 5, the brake apparatus of the embodiment Also include mounting seat 4, the mounting seat 4 is fixedly installed on vehicle frame 8, and rachet 12 and ratchet 25 are rotatably connected at peace Fill on seat 4 so that rachet 12 and ratchet 25 can realize the rotation relative to vehicle frame 8 by being rotated relative to mounting seat 4. Mounting seat 4 is supported to rachet 12 and ratchet 25 etc., and the structure of brake apparatus can be made simpler compact.More specifically Ground, from Fig. 4 and Fig. 5, in this embodiment, brake apparatus also includes the first axle sleeve 61, the first plain cushion 62, the first spring washer 63rd, the first nut 64 and the first bolt 65, and the second axle sleeve 71, the second plain cushion 72, the second spring washer 73, the second nut 74 and Two bolts 75, wherein：Rachet 12 passes through the first axle sleeve 61, the first plain cushion 62, the first spring washer 63, the first nut 64 and the first spiral shell Bolt 65 is rotationally connected with mounting seat 4 so that rachet 12 can be realized relative to peace by being rotated around the first axle sleeve 61 Fill the rotation of seat 4；Ratchet 25 passes through the second axle sleeve 71, the second plain cushion 72, the second spring washer 73, the second nut 74 and the second bolt 75 Rotationally it is connected with mounting seat 4 so that ratchet 25 can be realized relative to mounting seat 4 by being rotated around the second axle sleeve 71 Rotate.

From Fig. 2 and Fig. 6, in this embodiment, handle mechanism 21 includes handle 211 and handle box 212, wherein, hand Handle box 211 is fixedly installed relative to vehicle frame 8, and handle 211 is relative to handle box 211 rotatably arranged with and the lower end of handle 211 It is connected with the first flexible axle 22.When so pulling handle 211, handle 211 is rotated relative to vehicle frame 8, while the first flexible axle can be pulled 22, the first flexible axle 22 is moved flexible, and because the first flexible axle 22 is connected with ratchet 25, and ratchet 25 is relative to vehicle frame 8 Rotatably arranged with therefore, handle 211 can be rotated by the first flexible axle 22 with pawl 25 relative to vehicle frame 8 when pulled. As shown in figure 8, when rotating counterclockwise handle 211 (i.e. pull-up handle 211), the first flexible axle 22 pulls ratchet 25 to rotate clockwise.

Wherein, as shown in fig. 6, in order to realize relative rotation of the handle 211 relative to handle box 212, the hand of the embodiment Handle mechanism 21 also include flap 213 and installing plate 218, wherein, installing plate 218 is fixedly installed relative to handle box 211, for example its It can be fixedly connected in handle box 211；Flap 213 is rotatably coupled with installing plate 218；Handle 211 connects with flap 213 Connect.So when pulling handle 211, handle 211 is rotated, and is driven flap 213 to be rotated relative to installing plate 218, can be realized hand Rotation of the handle 211 relative to handle box 211 so that handle 211 can relative to handle box 211 by flap 213 and installing plate 218 Rotate and set.More specifically, as shown in fig. 6, the handle mechanism 21 of the embodiment also includes the 3rd axle sleeve 214, the 3rd plain cushion 215th, the 3rd bolt 216 and the 3rd nut 217, flap 213 pass through the 3rd axle sleeve 214, the 3rd plain cushion 215, the and of the 3rd bolt 216 3rd nut 217 is installed on installing plate 218, realizes the rotation relative to installing plate 218.Also, as shown in fig. 6, in the reality Apply in example, the lower end of handle 211 is provided with the screw thread being correspondingly provided with screw thread, and flap 213 with the lower end screw thread cooperation of handle 211 Hole, such handle 211 is threadedly coupled with flap 213, and connection is reliable, and convenient disassembly.

In addition, handle 211 is rotated for convenience, the handle box 212 of the embodiment is provided with guiding groove, handle 211 End is stretched into handle box 211 through the guiding groove so that the tracks in the guide groove formation rotation process of handle 211, is drawn Lead handle 211 and occur expected rotation, operating personnel's operation of being not only more convenient for is also beneficial to further improve braking reliability. Also, in this embodiment, handle 211, flap 213 and installing plate 218 are placed in handle box 212 so that handle mechanism 21 structure is more compact attractive in appearance.The first flexible axle 25 being arranged between ratchet 25 and handle 211 is additionally, since, can be released Limitation of the set location of ratchet 25 to the set location of handle mechanism 21, makes the set location of handle mechanism 21 more flexible, therefore, Handle box 211 is fixedly installed on by the seat of driver's cabin by the embodiment, and the set location of such handle mechanism 21 is more conformed to Ergonomics, the operating personnel that are more convenient for pull handle 211.

In this embodiment, the mechanical transmission mechanism of arrestment mechanism includes the second traction piece, branch block 33 and two the Three traction pieces, the first end of the second traction piece manipulates link gear drive connection with first, and the second end of the second traction piece passes through Branch block 33 is connected with two the 3rd traction pieces, and two the 3rd traction pieces are connected correspondingly with two brakes respectively, And when pedal 11 is operated, the second traction piece can pull two the 3rd traction pieces by branch block 33, make two brakings Body switches to on-position.

Specifically, as shown in figure 1, in this embodiment, the second traction piece includes the second flexible axle 31, the 3rd traction piece includes 3rd flexible axle 34, the first end of the second flexible axle 31 is connected with rachet 12 so that pedal 11 can be driven by rachet 12 The moving telescopic of second flexible axle 31；Second end of the second flexible axle 31 and the first end of two the 3rd flexible axles 34 are all connected to branch block 33 On, branch block 33 enables two the 3rd flexible axles 34 with the second flexible axle 31 together moving telescopic；Two the 3rd flexible axles 34 Second end is connected correspondingly with two brake drums respectively so that can drive two during two the 3rd 34 moving telescopics of flexible axle Brake drum switches between on-position and non-brake state.Wherein, branch block 33 can include fixed part and movable part, fixed Portion is fixedly installed on vehicle frame 8, and movable part is slidably connected with fixed part, and movable part is provided with three connecting holes, the second flexible axle The first end of 31 the second end and two the 3rd flexible axles 34 can be fixedly connected with three connecting holes respectively, such second flexible axle 31 Moving telescopic can drive movable part to be slided relative to fixed part, and then drive the synchronizing moving of the 3rd flexible axle 34 to stretch so that braking Drum switches between on-position and non-brake state.It can be seen that, by setting branch block 33, the second traction can be conveniently realized The synchronizing moving of part and two the 3rd traction pieces stretches, more smooth that the conversion of motion of pedal 11 efficiently is braked into this for two The action of body.

Because the embodiment uses mechanical transmission mechanism by action of the conversion of motion of pedal 11 for brake, and Corresponding function is no longer realized using hydraulic means, therefore, the brake apparatus of the embodiment, its braking procedure is without empty by entering again The influence of gas and brake fluid quality, braking reliability is higher, and maintaining more facilitates, also, without being provided for preventing again Only air intrusion and for discharging the structure of invading air, the overall structure of brake apparatus is simpler, and cost is lower.

The first flexible axle 22, the second flexible axle 31 and the 3rd flexible axle 34 of the embodiment can be using existing braking flexible axle knots Structure, including the sheath of outer layer, the steel wire rope of internal layer and the nut for being fixedly connected with other structures.First is soft for convenience Axle 22 and the connection of ratchet 25 and handle 211 and the connection of the second flexible axle 31 and rachet 12, as shown in Figures 2 and 3, at this In embodiment, second, which manipulates link gear, also includes the first flexible axle supporting plate 23 and connecting plate 24, and second manipulates link gear also Including the second flexible axle supporting plate 32, wherein, the first flexible axle supporting plate 23 is used to be fixedly connected with the nut of the first flexible axle 22, to the One flexible axle 22 is supported, in order to which the first flexible axle 22 is flexible as the rotation of handle 211 is moved；Connecting plate 24 is used for real Existing first flexible axle 22 is connected with the transition of ratchet 25；Second flexible axle supporting plate 32 is used to fix with the nut of the second flexible axle 31 and connected Connect, the second flexible axle 31 is supported, in order to which the second flexible axle 31 is flexible as the rotation of rachet 12 is moved.Wherein, First flexible axle supporting plate 23 and the second flexible axle supporting plate 32 can be fixed in mounting seat 4, and connecting plate 24 can be fixedly mounted In on ratchet 25.

In addition, in this embodiment, first, which manipulates link gear, also includes the first elastic component, and second manipulates link gear also Including the second elastic component, the first elastic component is used to apply the elastic force for resetting rachet 12, the second elastic component to rachet 12 For applying the elastic force for resetting ratchet 25 to ratchet 25.By setting the first elastic component and the second elastic component, it can facilitate The reset of rachet 12 and ratchet 25 so that when needing to release braking, rachet 12 and ratchet 25 can be rotated more easily Return back to initial position.Specifically, as shown in Figure 2, the first elastic component of the embodiment includes the first spring 13, the first spring 13 Two ends be connected in the flexible axle supporting plate 32 of rachet 12 and second so that the first spring 13 can be with rachet 12 Rotate and savings and release elasticity energy, when the first spring 13 discharges elastic energy, rachet 12 can be driven to reset；Second elastic component Including second spring 26, the two ends of second spring 26 be connected to ratchet 25 with vehicle frame 8 so that second spring 26 can be with The rotation of ratchet 25 and save and discharge elastic energy, when second spring 26 discharges elastic energy, ratchet 25 can be driven to reset.

As illustrated in figs. 2 through 8, in this embodiment, parking braking detection means includes trigger member 51 and detection switch 52, touches Outbox 51 is used in the second manipulation link gear by ratchet 25 and rachet 12 when engaging the manipulation link gear of locking first Detection trigger switch 52, makes detection switch 52 send signal.Wherein, trigger member 51 passes through the first axle sleeve together with rachet 12 61st, the first plain cushion 62, the first spring washer 63, the first nut 64 and the first bolt 65 are rotationally connected with mounting seat 4, detection switch 52 are arranged on ratchet 25, and such detection switch 52 can be rotated with ratchet 25 together relative frame 8, and trigger member 51 can be with Rachet 12, relative frame 8 is rotated together, so as to can make detection switch 52 during pull-up handle 211 with ratchet 25 rotate, until ratchet 25 is engaged with rachet 12, detection switch 52 is triggered, and part 51 is triggered, realize to parking braking state Detection.Because by setting parking braking detection means, whether operating personnel can be sent out with direct basis parking braking detection means Go out to detect signal judge whether parking completion and handle 211 whether pull-up in place, therefore, parking braking detection Device can make operating personnel more timely and accurately understand parking braking situation, also, operating personnel's pull-up handle of being also more convenient for 211 to desired locations, enable rachet 12 and ratchet 25 is more stable reliably engages.Specifically, as shown in Figure 4, the implementation The pressure of trigger member 51 of example is located at the side of the remote vehicle frame 8 of rachet 12, and such trigger member 51 can play limitation ratchet simultaneously The effect of the play of part 12, further improves reliability and stability that rachet 12 is engaged with ratchet 25.The detection of the example is opened Plunger type detection switch can be used by closing 52, be easy to contact with trigger member 51, sensitivity is higher.

The brake apparatus of the embodiment, its operation principle is described as follows：

(1) when vehicle need not be braked, as shown in figure 3, pedal 11 is not operated, and handle 211 is not pulled up, is ridden Plate 11 and handle 211 are in initial position, and ratchet 25 is engaged with rachet 12, and ratchet 25 is stuck in first spine of rachet 12 In tooth, the first flexible axle 22, the second flexible axle 31 and the 3rd flexible axle 34 are in the state for not being pulled and being tensioned, and brake drum is in non- On-position, wheel normal rotation, brake apparatus does not work.From the figure 3, it may be seen that now trigger member 51 does not connect with detection switch 52 Touch, detection switch 52 is not triggered.

(2) when vehicle needs to carry out service brake, as shown in fig. 7, pedal 11 is operated, pedal 11 is in Fig. 7 Dotted line position move to solid line position, drive rachet 12 to be rotated clockwise relative to vehicle frame 8 around the first axle sleeve 61, with ratchet The first end for the second flexible axle 31 that part 12 is connected pulls tensioning by rachet 12, and the second end of the second flexible axle 31 passes through branch block 33 two the 3rd flexible axles 34 of synchronous pulling, make two brake drums switch to on-position by non-brake state, prevent wheel from continuing Rotate, realize braking.In this process, as rachet 12 is rotated clockwise, the first spring 13 is stretched, the elastic energy of storage. Also, trigger member 51 and detection switch 52 are still not in contact with detection switch 52 is not triggered during as shown in Figure 7, being somebody's turn to do.

(3) when needing to release service brake, pedal 11 is released, and pedal 11 is replied by the solid line position in Fig. 7 To dotted line position, the first spring 13 discharges elastic energy, and rachet 12 is rotated counterclockwise in the presence of the first spring 13, until with Ratchet 25 is engaged again, meanwhile, rachet 12 drives the second flexible axle 31 and the 3rd flexible axle 34 to return back to original state, makes brake drum Again non-brake state is returned back to, service brake is released.

(3) when vehicle needs to carry out parking braking, as shown in figure 8, pedal 11 is operated first, now with it is above-mentioned (2) process is identical in, and pedal 11 still passes sequentially through rachet 12, the second flexible axle 31, branch block 33 and the band of the 3rd flexible axle 34 Dynamic brake drum switches to on-position by non-brake state；Handle 21 is rotated counterclockwise afterwards, is pulled up handle 21, handle 211 turn to solid line position by the dotted line position in Fig. 8, and the first flexible axle 22 is pulled by flap 213, and the first flexible axle 22 drives spine Pawl 25 is rotated clockwise relative to vehicle frame 8 around the 3rd axle sleeve 214, make ratchet 25 be caught in rachet 12 except first several ratchets it In other outer ratchets, even if now unclamping pedal 11, rachet 12 can not also overcome the elastic force of second spring 26 to rotate Reset, therefore, first, which manipulates link gear, is locked, and brake drum is held in on-position for a long time, realizes parking braking Function.As shown in Figure 8, during ratchet 25 is rotated clockwise, detection switch 52 is with the synchronous axial system of ratchet 25, and in ratchet 25 with rachet 12 when being engaged, and detection switch 52 is contacted with trigger member 51, and detection switch 52 is triggered, to the control device of vehicle Signal is sent, the logic control restarted for vehicle.

(4) when needing to release parking braking, pedal 11 can be floored, makes to go out between rachet 12 and ratchet 25 Show gap, now ratchet 25 can produce the trend for rotating counterclockwise reset in the presence of second spring 26, turn clockwise afterwards Fixed handle 211, is laid down handle 211, i.e., handle 211 turns to dotted line position by the solid line position in Fig. 8, then rachet 12 It is completely disengaged with ratchet 25, pedal 11 is then unclamped again, then ratchet 25 is rotated counterclockwise in the presence of second spring 26, directly It is stuck in again in first ratchet of rachet 12 to ratchet 25, resets and complete, parking braking is released, brake apparatus is replied again To the state shown in Fig. 3.

It can be seen from the operation principle of above-mentioned brake apparatus in this embodiment, when brake apparatus needs parking braking And when needing to release parking braking, be both needed to first step on pedal 11, wherein must first step on pedal when needing parking braking 11 pull-up handles 211 again, can preferentially ensure that brake drum is in on-position, it is possible to increase parking reliability and security； And need first pedal 11 must be floored when releasing parking braking and put down handle 211 again, the engine etc. of vehicle can be made Power-equipment is operated in pedal 11, brake drum fully starts in the case of being in on-position, prevents vehicle in engine Deng power-equipment it is not actuated it is complete in the case of start to exercise, it is possible to increase the security of vehicle restarting procedure.

Further, since after brake apparatus is used for a long time, brake drum can wear and tear, between causing between brake drum and wheel Gap increases, and brake efficiency is influenceed, accordingly, it would be desirable to be adjusted to the gap between brake drum and wheel.The braking of the embodiment Device, it can realize the purpose in gap between adjustment brake drum and wheel using the cooperation of rachet 12 and ratchet 25.Tool Body, when brake drum weares and teares, the amplitude of stepping on of pedal 11, the angle that increase rachet 12 is rotated counterclockwise can be increased Degree, makes up the gap increased between brake drum and wheel, and during parking braking, can accordingly increase the pull-up of handle 211 Amplitude, increases the mobile elongation of the first flexible axle 22, the clockwise rotational angle of ratchet 25 is increased to the conjunction with rachet 12 The automatic clamping of suitable ratchet, i.e. by the stuck position bigger in rotational angle of rachet 12, make brake drum remain to keep well In on-position.It can be seen that, because when brake drum weares and teares, ratchet 25 can be caught in ratchet automatically during parking braking In next ratchet of part 12, the gap increased between brake drum and wheel is made up, therefore, the embodiment is by setting rachet 12 The adaptivity of brake apparatus can be strengthened with ratchet 25, braking reliability is improved, later maintenance workload is reduced.

The second flexible axle 31 and the 3rd being connected with branch block 33 is additionally provided with the arrestment mechanism for being additionally, since the embodiment soft Axle 34, and hence it is also possible to manually adjust length that the second flexible axle 31 is connected between branch block 33 and ratchet 25 and the 3rd soft Axle 34 is connected to the length between branch block 33 and brake drum, by changing the second flexible axle 31 and the respective tensioning of the 3rd flexible axle 34 Degree, to further compensate for the gap between brake drum and wheel.As shown in figure 1, the branch block 33 of the embodiment is arranged at vehicle frame 8 Side, is so more convenient for manually adjusting the connecting length of the second flexible axle 31 and the 3rd flexible axle 34 each with branch block 33, convenient real Now brake drum and wheel clearance are manually adjusted.

In summary, brake apparatus of the invention, running braking function is integrated in one by it with parking braking function, no Only structure is simpler compact, and cost is relatively low, easy to maintenance, also, brake operating is simple, and braking reliability is higher, braking row Journey is adaptive stronger.

By the brake application of the present invention in the braking ability of vehicle on vehicle, can be effectively improved, realize and more pacify Complete reliable braking procedure.Wherein, because the brake device structure of the present invention is simply compact, therefore, it is particularly suitable for use in electronic The mini engineering vehicle such as road cleaner.So, include the vehicle of brake apparatus of the present invention present invention also offers a kind of, for example The engineering trucks such as road cleaner.

The exemplary embodiment of the present invention is the foregoing is only, is not intended to limit the invention, all spirit in the present invention Within principle, any modification, equivalent substitution and improvements made etc. should be included in the scope of the protection.

Claims (15)

1. a kind of brake apparatus, for vehicle, it is characterised in that including first with pedal (11) manipulate link gear, Second with handle (211) manipulates link gear and the arrestment mechanism with brake, and described first manipulates link gear With the arrestment mechanism drive connection, described second manipulates link gear manipulates link gear drive connection with described first, its In：When the pedal (11) be operated and the handle (211) not when pulled, described first manipulates link gear driving institute Arrestment mechanism is stated, the brake is in on-position, realizes running braking function；When the handle (211) is described When pedal (11) is pulled up after being operated, it is described second manipulation link gear by lock it is described first manipulate link gear come The brake is held in the on-position, realize parking braking function.

2. brake apparatus according to claim 1, it is characterised in that described first, which manipulates link gear, also includes driving company Be connected to the rachet (12) between the arrestment mechanism and the pedal (11), described second manipulate link gear also include with The ratchet (25) of handle (211) drive connection, the rachet (12) and the ratchet (25) are both with respect to the vehicle Vehicle frame (8) rotatably arranged with relative to the car when rachet (12) can be operated in the pedal (11) Frame (8) rotates, and the ratchet (25) can occur to turn relative to the vehicle frame (8) when pulled in the handle (211) It is dynamic, when being pulled up after the handle (211) is operated in the pedal (11), the ratchet (25) and the rachet (12) engage, realize that described second manipulates link gear to the described first locking for manipulating link gear.

3. brake apparatus according to claim 2, it is characterised in that the second manipulation link gear also includes being connected to The first traction piece between the ratchet (25) and the handle (211), first traction piece is drawn in the handle (211) The ratchet (25) is pulled during dynamic, the ratchet (25) is rotated relative to the vehicle frame (8).

4. brake apparatus according to claim 3, it is characterised in that first traction piece includes the first flexible axle (22).

5. brake apparatus according to claim 2, it is characterised in that described first, which manipulates link gear, also includes the first bullet Property part, first elastic component be used for the rachet (12) apply make the rachet (12) reset elastic force.

6. brake apparatus according to claim 2, it is characterised in that described second, which manipulates link gear, also includes the second bullet Property part, second elastic component be used for the ratchet (25) apply make the ratchet (25) reset elastic force.

7. brake apparatus according to claim 2, it is characterised in that the brake apparatus also includes parked state and detects dress Put, the parked state detection means is used for during parking braking by detecting the ratchet (25) and the rachet (12) whether engage to detect whether the brake apparatus is in parking braking state.

8. brake apparatus according to claim 7, it is characterised in that the parked state detection means includes trigger member (51) and detection switch (52), one in the trigger member (51) and the detection switch (52) can be with the rachet (12) rotated together relative to the vehicle frame (8) and another can be as the ratchet (25) together relatively described vehicle frame (8) turns It is dynamic, it is described when the ratchet (25) and the rachet (12) manipulate link gear by engaging by described first to be locked Detection switch (52) is come in contact with the trigger member (51), and the detection switch (52) is triggered by the trigger member (51).

9. brake apparatus according to claim 7, it is characterised in that the detection switch (52) can be with the ratchet (25) rotated together relative to the vehicle frame (8), the trigger member (51) can be relatively described together with the rachet (12) Vehicle frame (8) is rotated, and trigger member (51) pressure is located at the side of the remote vehicle frame (8) of the rachet (12).

10. brake apparatus according to claim 2, it is characterised in that when the pedal (11) is not operated and described Handle (211) not when pulled, with the rachet (12) engage by the ratchet (25).

11. according to any described brake apparatus of claim 1-10, it is characterised in that the arrestment mechanism also includes driving and connected It is connected to the mechanical transmission mechanism between the brake and the first manipulation link gear, the mechanical transmission mechanism For driving the brake to switch to the on-position when the pedal (11) is operated.

12. brake apparatus according to claim 11, it is characterised in that the arrestment mechanism includes two brakings originally Body, two wheels of two brakes respectively with the vehicle frame (8) both sides are set correspondingly；The mechanical biography Motivation structure include the second traction piece, branch block (33) and two the 3rd traction pieces, the first end of second traction piece with it is described First manipulates link gear drive connection, and the second end of second traction piece passes through the branch block (33) and described two the Three traction pieces are connected, and described two 3rd traction pieces are connected correspondingly with described two brakes respectively, when the pin When pedal (11) is operated, second traction piece can pull described two 3rd traction pieces by the branch block (33), Described two brakes are made to switch to on-position.

13. brake apparatus according to claim 12, it is characterised in that the first end of second traction piece and described the One manipulates rachet (12) connection of link gear.

14. brake apparatus according to claim 12, it is characterised in that second traction piece includes the second flexible axle (31)；And/or, the 3rd traction piece includes the 3rd flexible axle (34).

15. a kind of road cleaner, including vehicle frame (8), it is characterised in that the road cleaner also includes such as claim 1- 14 any described brake apparatus.