CN112046450A

CN112046450A - Pedal system

Info

Publication number: CN112046450A
Application number: CN202011008075.6A
Authority: CN
Inventors: 颜培兴; 张冰; 卢双桂; 刁剑雄; 赵海
Original assignee: Liuzhou Wuling Automobile Industry Co Ltd; Guangxi Automobile Group Co Ltd
Current assignee: Liuzhou Wuling Automobile Industry Co Ltd; Liuzhou Wuling Motors Co Ltd; Guangxi Automobile Group Co Ltd
Priority date: 2020-09-23
Filing date: 2020-09-23
Publication date: 2020-12-08

Abstract

The invention discloses a pedal system which comprises a service brake pedal, a parking brake structure and a brake pedal arm, wherein the parking brake structure comprises a parking brake pedal, the service brake pedal and the parking brake pedal are integrated on the same brake pedal arm, the pedal system also comprises an installation bottom plate, and the service brake pedal, the parking brake structure and the brake pedal arm are all integrated on the installation bottom plate; the mounting base plate is provided with a mounting hole for connecting with a frame. The pedal system is small in overall occupied space and high in integration degree, only the integrated mounting bottom plate is required to be assembled with the underframe of a vehicle during mounting, and mounting difficulty is small.

Description

Pedal system

Technical Field

The invention relates to the technical field of automobile braking, in particular to a pedal system.

Background

With the popularization and rapid development of new energy automobiles, various small electric tools for walk and small non-road low-speed electric vehicles are rapidly developed.

The brake pedal structure used by the low-speed electric vehicles is the brake pedal structure of the traditional automobile, the problem of insufficient layout space is easily caused, and the shape of the whole automobile is easily damaged.

This footboard system pedal arm, parking couple board and accelerator etc. install respectively on the frame, and each part is scattered relatively, and the integrated level is not high, has higher requirement to the relative position of each part during the installation, is difficult to realize the assembly, and the installation space that needs is also great relatively, and adaptability is poor.

In view of this, how to improve the pedal system of the low-speed electric vehicle to make the pedal system have a simple structure and a high integration level is a technical problem that needs to be solved by those skilled in the art.

Disclosure of Invention

The invention aims to provide a pedal system which is suitable for an electric vehicle with low speed, and has the advantages of simple structure, relatively high integration level and low installation difficulty.

In order to solve the technical problems, the invention provides a pedal system, which comprises a service brake pedal, a parking brake structure and a brake pedal arm, wherein the parking brake structure comprises the parking brake pedal, the service brake pedal and the parking brake pedal are integrated on the same brake pedal arm, and the pedal system also comprises an installation bottom plate, and the service brake pedal, the parking brake structure and the brake pedal arm are integrated on the installation bottom plate; the mounting base plate is provided with a mounting hole for connecting with a frame.

According to the pedal system, the parking brake structure further comprises a parking fixing frame, a parking hook and a hook fixing plate; the parking brake pedal is fixedly arranged on the parking fixing frame, the parking fixing frame is hinged with the first end of the brake pedal arm, and the parking hook is relatively fixed with the parking fixing frame and hinged with the second end of the brake pedal arm;

the second end of the brake pedal arm is hinged with the mounting bottom plate, and the hook fixing plate is fixed relative to the mounting bottom plate;

and is configured to: the parking brake pedal is stepped on, the parking brake pedal can drive the brake pedal arm to rotate towards the braking direction, and the parking hook can be driven to be fixedly connected with the hook fixing plate in a hanging mode.

The pedal system as described above, the service brake pedal being secured to the first end of the brake pedal arm and configured to: the parking brake pedal is stepped, the parking fixing frame rotates towards the braking direction along with the parking brake pedal by a set angle, the parking fixing frame is abutted against the service brake pedal, and the parking brake pedal drives the brake pedal arm to rotate towards the braking direction together when continuing to rotate towards the braking direction; a first elastic piece is arranged between the service brake pedal and the parking brake pedal, so that elastic deformation energy is reserved when the parking brake pedal rotates relative to the service brake pedal.

According to the pedal system, the parking brake structure further comprises a parking pull rod, one end of the parking pull rod is fixedly connected with the parking fixing frame, and the other end of the parking pull rod is fixedly connected with the parking hook.

According to the pedal system, the mounting base plate is detachably and fixedly connected with a bracket, and the bracket comprises two oppositely arranged side frame walls and an underframe wall fixedly connected with the two side frame walls; the hook fixing plate is fixedly connected to the chassis wall; the second end of the brake pedal arm is positioned between and hinged with the two side frame walls; and a second elastic piece is arranged between the brake pedal arm and the bracket so as to store elastic deformation energy when the brake pedal arm rotates towards the braking direction.

As described above, the pedal system, the mounting base plate is further integrated with an accelerator pedal structure, the accelerator pedal structure includes an accelerator pedal arm, a linkage mechanism is disposed between the accelerator pedal arm and the bracket, the linkage mechanism includes a linkage pull rod, a cam shaft and a parking release cam, the parking release cam is fixed on the cam shaft, the cam shaft is rotatably inserted into the two side walls of the bracket, one end of the cam shaft is hinged to one end of the linkage pull rod, and the other end of the linkage pull rod is hinged to the accelerator pedal arm and configured to: the acceleration pedal arm rotates towards the acceleration direction, and the cam shaft can be driven to rotate through the linkage pull rod, so that the parking releasing cam pushes the parking hook to be separated from the hook fixing plate.

According to the pedal system, the mounting base plate is provided with an opening corresponding to the bracket, the two side frame walls of the bracket are fixedly connected to the bottom of the mounting base plate, the first end of the brake pedal arm penetrates through the opening and is located above the mounting base plate, and the pedal system further comprises a baffle plate for blocking the opening.

In the pedal system, an elastic cushion pad is fixedly connected to a portion of the opening, which is in contact with the brake pedal arm.

The pedal system comprises a brake structure connected with a brake pedal arm, wherein a buffer device is arranged between the brake pedal arm and the brake structure, the buffer device comprises a buffer support, a buffer pull rod and a buffer elastic part, one end of the buffer support is hinged to the brake pedal arm, the buffer pull rod penetrates through the buffer support, the buffer elastic part is sleeved on the buffer pull rod, and one end of the buffer elastic part is abutted to the buffer support and is configured to: when the brake pedal arm rotates towards the braking direction, the braking structure can be pulled through the buffer device, and the buffer elastic piece is in an energy storage state.

As above pedal system, install the stop lamp switch on the installation bottom plate, be equipped with the shielding plate on the brake pedal arm to the configuration becomes: the brake pedal arm is located at an initial position, the shielding plate abuts against the induction switch of the brake lamp switch, the brake pedal arm drives the shielding plate to rotate towards a braking direction, the induction switch of the brake lamp switch extends out, and a brake signal is sent to a vehicle.

According to the pedal system provided by the invention, the service brake pedal and the parking brake pedal share one brake pedal arm, and the brake pedal arm, the service brake pedal and the parking brake structure are all integrated on one mounting bottom plate, so that the pedal system has the advantages of small overall occupied space and high integration level, and the mounting difficulty is small because the integrated mounting bottom plate is only required to be assembled with the bottom frame of a vehicle during mounting.

Drawings

FIG. 1 is a schematic block diagram of one embodiment of a pedal system according to the present invention;

FIG. 2 is a schematic view of another angle of the pedal system of FIG. 1;

FIG. 3 is an exploded view of the pedal system in an exemplary embodiment;

FIG. 4 is a schematic view of the pedal system shown in FIG. 2 with the mounting plate removed;

FIG. 5 is a schematic structural view of a mounting base of the pedal system of FIG. 1;

FIG. 6 is a schematic structural view of a bracket of the pedal system of FIG. 2;

FIG. 7 is an assembled schematic view of a service brake pedal, brake pedal arm and parking brake arrangement in an exemplary embodiment;

FIG. 8 is a schematic illustration of the accelerator pedal structure and bracket connection in an exemplary embodiment;

FIG. 9 is a schematic view of a buffer device according to an embodiment;

FIG. 10 is a partial schematic view of the mounting of the step system to the undercarriage of an automobile in accordance with an exemplary embodiment.

Description of reference numerals:

a frame 01, a front clapboard 011;

the pedal comprises a mounting base plate 110, mounting holes 111, an opening 112, a mounting seat 113, a bending part 114, pedal arm holes 115, a bracket 120, a side frame wall 121, a bottom frame wall 122 and an elastic cushion pad 130;

a service brake pedal 200, a service brake pedal cover 210;

the parking brake device comprises a parking brake pedal 310, a parking fixing frame 320, a parking hook 330, a sleeve part 331, a hook fixing plate 340, a parking pull rod 350 and a first elastic piece 360;

a brake pedal arm 410, a bushing 411, a shutter 412, a first shaft 420, a second shaft 430, a third shaft 440, a fourth shaft 450, a baffle 460, a second elastic member 470;

an accelerator pedal 510, an accelerator pedal arm 520, an acceleration controller 530;

a linkage mechanism 600, a linkage pull rod 610, a cam shaft 620 and a parking release cam 630;

the buffer device 700, the buffer bracket 710, the buffer pull rod 720 and the buffer elastic piece 730;

stop lamp switch 800.

Detailed Description

In order that those skilled in the art will better understand the disclosure, the invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1 and 2, fig. 1 is a schematic structural diagram of an embodiment of a pedal system provided in the present invention; fig. 2 is a schematic view of another angle of the pedal system shown in fig. 1.

The pedal system provided by the embodiment is mainly used for low-speed electric vehicles, wherein the low speed refers to vehicles generally below 50km/h, and can be used for other vehicle speed ranges or other types of automobile vehicles if conditions allow.

The pedal system provided in this embodiment includes a service brake pedal 200, a parking brake structure including a parking brake pedal 310, and a brake pedal arm 410, wherein the service brake pedal 200 and the parking brake pedal 310 are integrated on one brake pedal arm 410. The pedal system further includes a mounting base plate 110, on which the aforementioned service brake pedal 200, parking brake structure and brake pedal arm 410 are integrated, the mounting base plate 110 having a mounting hole 111 for connection with a frame 01 (shown in fig. 10) of the vehicle.

According to the pedal system, the service brake pedal 200 and the parking brake pedal 310 are integrated on one brake pedal arm 410, and the brake pedal arm 410, the service brake pedal 200 and the parking brake structure are integrated on one mounting bottom plate, so that the whole occupied space of the pedal system is small, the integration level is high, a module is formed, during mounting, only the mounting bottom plate 110 integrated with the relative brake structure is required to be assembled with the bottom frame 01 of a vehicle, and the mounting difficulty is small.

To achieve integration of the structures on the mounting baseplate 110, the specific structure is described in detail below.

Referring to fig. 3-7 together, fig. 3 is an exploded view of the pedal system in one embodiment; FIG. 4 is a schematic view of the pedal system shown in FIG. 2 with the mounting plate removed; FIG. 5 is a schematic structural view of a mounting base of the pedal system of FIG. 1; FIG. 6 is a schematic structural view of a bracket of the pedal system of FIG. 2; FIG. 7 is an assembled schematic view of a service brake pedal, brake pedal arm and parking brake arrangement in an exemplary embodiment.

In this embodiment, the parking brake structure further includes a parking holder 320, a parking hook 330, and a hook fixing plate 340.

Wherein, parking brake pedal 310 is fixed in parking mount 320, parking mount 320 is articulated with the first end of brake pedal arm 410, parking couple 330 and parking mount 320 relatively fixed, and articulated with the second end of brake pedal arm 410, the second end of brake pedal arm 410 is articulated with mounting plate 110, couple fixed plate 340 and mounting plate 110 relatively fixed to configure into: when the parking brake pedal 310 is stepped on, the parking brake pedal 310 rotates towards the braking direction, and the parking brake pedal 310 can drive the brake pedal arm 410 to rotate towards the braking direction and can drive the parking hook 330 to be fixedly hooked with the hook fixing plate 340.

It should be noted that, here, the first end and the second end of the brake pedal arm 410 both refer to a section of the end portion of the brake pedal arm 410, and the positional relationship of the relevant components connected thereto is described with the first end and the second end.

In this embodiment, the service brake pedal 200 is fixedly connected to a first end of the brake pedal arm 410, such that when the service brake pedal 200 is depressed, the brake pedal arm 410 rotates in a braking direction to perform service braking.

Specifically, when the parking brake pedal 310 is stepped on, the parking brake pedal 310 is hinged to the first end of the brake pedal arm 410, so that the parking brake pedal 310 rotates around the hinged shaft relative to the brake pedal arm 410, the parking mount 320 rotates with the parking brake pedal, after the parking brake pedal 310 rotates by a set angle, the parking mount 320 can be abutted to the service brake pedal 200, the parking brake pedal 310 is continuously stepped on at the moment, the brake pedal arm 410 can be driven to rotate towards the braking direction together, meanwhile, the parking hook 330 also rotates towards the braking direction, and can rotate to a position fixedly connected with the hook fixing plate 340, and parking is achieved.

As shown in fig. 7, the parking fixing frame 320 includes a flat plate structure for supporting and fixing the parking brake pedal 310 and a substantially triangular ear plate structure, as understood by referring to fig. 2 and 4, when the parking fixing frame 320 rotates along with the parking brake pedal 310 in the braking direction, a corner of the triangular ear plate structure rotates towards the service brake pedal 200 to abut against the service brake pedal 200, after abutting against the service brake pedal 200, the parking brake structure, the brake pedal arm 410 and the related structures thereon can be understood as an integrated rigid structure, and when the parking brake pedal 310 is continuously stepped on, the brake pedal arm 410 and the related structures thereon rotate towards the braking direction together. In actual installation, the parking fixing frame 320 may be configured in other forms, and is not limited to the form shown in the drawings, as long as it can rotate relative to the brake pedal arm 410 in the braking direction by a set angle and then drive the brake pedal arm 410 to rotate together in the braking direction to implement parking braking.

Specifically, the second end of the brake pedal arm 410 is connected with a brake cable or a brake cylinder, and when the brake pedal arm 410 is driven by the driving brake pedal 200 or the parking brake pedal 310 to rotate towards the braking direction, the brake cable or the brake cylinder can be pulled to move so as to open the brake shoe to realize braking. While the brake cable is shown as an example in the drawings and the brake cable is described as an example hereinafter, it is understood that the brake mechanism connected to the brake pedal arm 410 may be mechanical or hydraulic in actual installation.

It should be noted that, after the service brake pedal 200 is stepped to drive the brake pedal arm 410 to implement braking, and after the force applied to the service brake pedal 200 disappears, the brake pedal arm 410 can return to release braking, and the parking brake pedal 310 is stepped to drive the brake pedal arm 410 to implement braking, and after the parking hook 330 is fixedly connected with the hook fixing plate 340, due to the mechanical locking of the parking hook 330 and the hook fixing plate 340, the brake pedal arm 410 pulls the brake cable to maintain at the braking position to implement the parking function.

In this embodiment, in order to facilitate the parking hook 330 to rotate along with the rotation of the parking brake pedal 310 so as to be matched with the hook fixing plate 340 relatively fixed to the mounting base plate 110, the parking hook 330 is fixedly connected to the parking fixing frame 320 through the parking pull rod 350, as shown in fig. 4 and 7, one end of the parking pull rod 350 is fixedly connected to the parking fixing frame 320, the other end of the parking pull rod 350 is fixedly connected to the parking hook 330, the parking pull rod 350 extends substantially along the extending direction of the brake pedal arm 410, wherein the parking hook 330 is further hinged to the second end of the brake pedal arm 410, and the integration level of the whole structure can be improved.

In this embodiment, to ensure the operational reliability and the stability and reliability of the related structural engagement, the brake pedal arm 410 has a U-shaped cross-section, which may be understood as a channel wall structure.

As shown in fig. 4 and 7, the parking holder 320 is hinged to the second shaft 430 penetrating through the triangular ear plate of the parking holder 320 and the side wall of the brake pedal arm 410. In this specific example, the parking fixing frame 320 has two oppositely-arranged lug plate structures, during assembly, the first end of the brake pedal arm 410 is located between the two lug plates, through holes corresponding to the positions are arranged on the two lug plates of the parking fixing frame 320 and the side walls of the brake pedal arm 410, the second shaft 430 sequentially penetrates through the through holes, the parking fixing frame 320 and the brake pedal arm 410 are hinged, the axial position of the second shaft 430 can be limited in a conventional manner, for example, the second shaft can adopt a pin shaft structural form, and the other end of the second shaft can realize axial limiting through a matched positioning pin and the like.

In a specific embodiment, in order to achieve rapid resetting of the parking brake pedal 310, a first elastic member 360 is disposed between the parking brake pedal 310 and the service brake pedal 200 to reserve elastic deformation energy when the parking brake pedal 310 rotates relative to the service brake pedal 200.

The first elastic element 360 may be a torsion spring, a main body thereof is sleeved on the second shaft 430, and two elastic feet thereof are respectively abutted against the service brake pedal 200 and the parking brake pedal 310.

In addition, the parking hook 330 is hinged to the second end of the brake pedal arm 410 through a third shaft 440, with reference to fig. 4 and 7, a sleeve portion 331 is fixedly embedded in the parking hook 330, through holes corresponding to the sleeve portion 331 are formed in two side walls of the brake pedal arm 410, and the parking hook 330 is hinged to the brake pedal arm 410 through the third shaft 440 penetrating through the brake pedal arm 410 and the sleeve portion 331.

In a specific scheme, in order to further improve the integration level of the pedal system and facilitate installation, the related structures of the brake pedal arm 410 and the parking brake structure are integrated on a bracket 120, and the bracket 120 is detachably and fixedly connected with the installation base plate 110.

As shown in fig. 6, the bracket 120 includes two side frame walls 121 disposed opposite to each other and a bottom frame wall 122 fixedly connected to the two side frame walls 121, and it can be understood that the bracket 120 is disposed in a U-shaped structure as a whole.

Referring to fig. 4 and 7, the second end of the brake pedal arm 410 is hinged to the two side frame walls 121 of the bracket 120.

The second end of the brake pedal arm 410 is provided with a bushing 411, as shown in fig. 7, the bushing 411 is inserted through two opposite side walls thereof and protrudes outward from the side walls thereof, and a matching through hole is provided at a corresponding position of the two side frame walls 121 of the bracket 120, and in conjunction with fig. 3, the brake pedal arm 410 is hinged to the bracket 120 by a first shaft 420 passing through the corresponding through hole of the side frame walls 121 of the bracket 120 and the bushing 411.

In actual arrangement, a bushing can be arranged between the first shaft 420 and the sleeve 411, so that on one hand, the bushing is wear-resistant, the service life of related parts is prolonged, and on the other hand, noise between the first shaft 420 and the sleeve 411 can be eliminated. The axial position of the first shaft 420 is defined similarly to the second shaft 430, and is not described again.

Specifically, in order to achieve quick return of the brake pedal arm 410, a second elastic member 470 is provided between the brake pedal arm 410 and the bracket 120 to store elastic deformation energy when the brake pedal arm 410 rotates in a braking direction.

The second elastic member 470 may also be in the form of a torsion spring, and a main body thereof may be sleeved on the sleeve 411 of the brake pedal arm 410, and two elastic legs thereof are respectively abutted against the bracket 120 and the brake pedal arm 410.

As can be understood from fig. 4, after the assembly, the first end of the brake pedal arm 410 is located between the two side frame walls 121 of the bracket 120, and the parking hook 330 is also located between the two side frame walls 121 of the bracket 120 due to the hinge structure of the parking hook 330 and the brake pedal arm 410, so that the hook fixing plate 340 engaged with the parking hook 330 may be specifically fixedly connected to the bracket 120, in this example, the hook fixing plate 340 is specifically fixedly connected to the bottom frame wall 122 of the bracket 120.

By designing as above, the relevant mechanical locking structure of the parking brake structure is integrated with the brake pedal arm 410 on the bracket 120, so that the whole pedal system can be more compact and integrated.

During specific assembly, the related structures and the support 120 can be assembled firstly, then the support 120 is connected with the mounting base plate 110, and finally the whole body is assembled with the underframe 01 of the vehicle, so that the assembly is more convenient and quicker.

Specifically, an opening 112 corresponding to the bracket 120 is provided on the mounting base plate 110, the bracket 120 is specifically fixedly connected to the back, that is, the bottom, of the mounting base plate 110, as shown in fig. 5, in this example, two opposite side edges of the back of the mounting base plate 110 corresponding to the opening 112 are fixedly provided with a mounting seat 113, two side frame walls 121 of the bracket 120 are respectively fixedly connected to the two mounting seats 113 through fasteners, for convenience of installation, the top ends of the two side frame walls 121 have a flanging edge which is turned outwards, as shown in fig. 6, and are specifically fixed to the mounting seat 113 through the flanging edge. Thus, the first end of the brake pedal arm 410 can pass through the opening 112 above the mounting base plate 112, as shown in fig. 1 and 2.

In order to prevent impurities such as dust from entering the cab through the opening 112 in practical use, a baffle 460 may be provided, and the baffle 460 is used for blocking the opening 112.

In a specific arrangement, the body of the baffle 460 may be connected to the brake pedal arm 410, and rotate together with the brake pedal arm 410, and with reference to fig. 2 and 7, a through hole may be provided at a suitable position of the brake pedal arm 410, and the baffle 460 is fixed to the brake pedal arm 410 by the fourth shaft 450 penetrating through the brake pedal arm 410 and the baffle 460. At this time, the flapper 460 can rotate with the brake pedal arm 410, so its shape or the like should not interfere with the rotation of the brake pedal arm 410 in cooperation with the opening 112.

Of course, in other embodiments, the baffle 460 may be fixed to the mounting base plate 110 to block the opening 112, and at this time, a notch for the brake pedal arm 410 to pass through should be provided on the baffle 460, and the notch does not obstruct the rotation of the brake pedal arm 410.

In a specific scheme, as shown in fig. 1, an elastic cushion pad 130 is further fixedly connected to a portion where the opening 112 of the mounting base plate 110 contacts the brake pedal arm 410, so as to relieve collision with the portion of the opening 112 when the brake pedal arm 410 rotates and returns, and reduce collision damage to the brake pedal arm 410.

Referring to fig. 5, a bending portion 114 bent toward the back of the mounting base plate 110 may be disposed at a corresponding side of the opening 112 to serve as a mounting portion of the elastic buffer pad 130, and the elastic buffer pad 130 may be detachably mounted on the bending portion 114 by a fastener, so as to be conveniently replaced.

In practical application, after the parking brake pedal 310 is stepped to realize parking brake, when the parking brake needs to be released, the service brake pedal 200 can be stepped, and at the moment, the parking brake pedal 310 can automatically return under the action of the first elastic piece 360, so that the parking hook 330 is driven by the parking pull rod 350 to be separated from the hook fixing plate 340 and return, and the release of parking is realized.

Referring to fig. 8, fig. 8 is a schematic diagram of the connection between the accelerator pedal structure and the bracket according to the embodiment.

In this embodiment, an accelerator pedal structure is further integrated on the mounting base plate 110, wherein the accelerator pedal structure includes an accelerator pedal 510, an accelerator pedal arm 520 and an accelerator controller 530, wherein the accelerator controller 530 can be mounted on the bottom surface, i.e., the back surface, of the mounting base plate 110 by fasteners such as screws, the accelerator pedal arm 520 is connected to the accelerator controller 530, a pedal arm hole 115 through which the accelerator pedal arm 520 passes is further provided on the mounting base plate 110, one end of the accelerator pedal arm 520 above the mounting base plate 110 is fixedly connected to the accelerator pedal 510, and when the accelerator pedal 510 is stepped, the accelerator pedal 510 can drive the accelerator pedal arm 520 to rotate, so as to facilitate the action of the accelerator pedal arm 520, the pedal arm hole 115 is a long-strip hole, which can be understood by referring to fig. 2 and 5.

In this embodiment, the link mechanism 600 is provided between the accelerator pedal arm 520 and the bracket 120, and in the parking state, the parking release can be realized by the link mechanism 600 by depressing the accelerator pedal 510.

Specifically, the linkage mechanism 600 includes a linkage pull rod 610, a cam shaft 620 and a parking release cam 630, the parking release cam 630 is fixed on the cam shaft 620, the cam shaft 620 is rotatably inserted into two side frame walls 121 of the bracket 120, as shown in fig. 2, 4 and 8, one end of the cam shaft 620 further extends out of the corresponding side frame wall 121 and is hinged to one end of the linkage pull rod 610, and the other end of the linkage pull rod 610 is hinged to the accelerator pedal arm 520 and is configured to: the accelerator pedal arm 520 is rotated in the acceleration direction, and the cam shaft 620 is rotated by the linkage lever 610 to make the parking release cam 630 push the parking hook 330 to be disengaged from the hook fixing plate 340.

In this manner, in the parking state, the accelerator pedal 510 may be directly depressed to release the parking brake.

Referring to fig. 9, fig. 9 is a schematic structural diagram of a buffering device in an embodiment.

In this embodiment, still be equipped with buffer 700 between brake pedal arm 410 and brake cable, the pedal power that transmits to brake pedal arm 410 passes through buffer 700 and transmits to the brake cable, under buffer 700's cushioning effect, no matter be suddenly stepping on the brake or step on the brake slowly, can not have the harsh sense, can improve the comfort level of brake.

Specifically, the buffering device 700 includes a buffering bracket 710, a buffering pull rod 720 and a buffering elastic member 730, wherein one end of the buffering bracket 710 is hinged to the brake pedal arm 410, the other end of the buffering bracket 710 is of a closed structure, the buffering bracket 710 forms a space for accommodating the buffering elastic member 730, one end of the buffering pull rod 720 passes through the closed section of the buffering bracket 710 and is located in the space, the buffering elastic member 730 is specifically in the form of a spring, and is sleeved on the portion of the buffering pull rod 720 located in the space of the buffering bracket 710, so that one end of the spring is abutted to the closed end of the buffering bracket 710, and the other end of the spring can limit the relative position of the buffering pull rod 720 through a bolt and the like, as shown. The other end of the buffer pull rod 720 is connected with a brake cable.

Referring to fig. 1, when the brake pedal arm 410 rotates in the braking direction, the buffer rod 720 is pulled, the spring is compressed to relieve the force transmitted to the brake cable, and when the brake pedal arm is reset, the force transmitted to the brake cable can be relieved under the action of the restoring force of the spring.

In actual installation, the relative positions of the cushion elastic member 730, the cushion rod 720, and the cushion holder 710 may not be as shown in fig. 9, and the cushion elastic member 730 may be in the energy storage state when the brake pedal arm 410 is rotated in the braking direction.

In this embodiment, a stop lamp switch 800 is further mounted on the mounting base plate 110, and the stop pedal arm 410 is correspondingly provided with a shielding plate 412 and configured to: when the brake pedal arm 410 is in an initial position, i.e. in a non-braking state, the shielding plate 412 abuts against the inductive switch of the brake lamp switch 800, the brake lamp switch 800 does not output a brake signal, and when the brake pedal arm 410 drives the shielding plate 412 to rotate towards a braking direction, the inductive switch of the brake lamp switch 800 is not blocked by the shielding plate 412 and can extend out, and a brake signal is sent to a vehicle, so that a driver can know the vehicle state.

Referring to fig. 10, fig. 10 is a partial schematic view of the pedal system mounted on the chassis of the vehicle according to the embodiment. This footboard system all integrates braking correlation structure and accelerator pedal structure on mounting plate 110, realizes the equipment of footboard system and frame 01 through mounting plate 110, as shown in fig. 10, this kind of mode need not to set up structure such as opening and the cooperation of braking correlation structure on the preceding baffle 011 of frame 01, and it is more convenient to install, can avoid debris such as outer ponding of car to get into the driver's cabin through preceding baffle simultaneously.

The pedal system provided by the present invention is described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.

Claims

1. A pedal system comprises a service brake pedal, a parking brake structure and a brake pedal arm, wherein the parking brake structure comprises a parking brake pedal, the service brake pedal and the parking brake pedal are integrated on the same brake pedal arm, and the pedal system is characterized by further comprising an installation bottom plate, and the service brake pedal, the parking brake structure and the brake pedal arm are all integrated on the installation bottom plate; the mounting base plate is provided with a mounting hole for connecting with a frame.

2. The pedal system according to claim 1, wherein the parking brake structure further comprises a parking mount, a parking hook, and a hook fixing plate; the parking brake pedal is fixedly arranged on the parking fixing frame, the parking fixing frame is hinged with the first end of the brake pedal arm, and the parking hook is relatively fixed with the parking fixing frame and hinged with the second end of the brake pedal arm;

3. The pedal system of claim 2, wherein the service brake pedal is secured to the first end of the brake pedal arm and is configured to: the parking brake pedal is stepped, the parking fixing frame rotates towards the braking direction along with the parking brake pedal by a set angle, the parking fixing frame is abutted against the service brake pedal, and the parking brake pedal drives the brake pedal arm to rotate towards the braking direction together when continuing to rotate towards the braking direction; a first elastic piece is arranged between the service brake pedal and the parking brake pedal, so that elastic deformation energy is reserved when the parking brake pedal rotates relative to the service brake pedal.

4. The pedal system according to claim 2, wherein the parking brake structure further includes a parking pull rod, one end of the parking pull rod is fixedly connected to the parking fixing frame, and the other end of the parking pull rod is fixedly connected to the parking hook.

5. The pedal system according to claim 2, wherein a bracket is detachably and fixedly connected to the mounting base plate, and the bracket includes two side frame walls arranged oppositely and an underframe wall fixedly connected to the two side frame walls; the hook fixing plate is fixedly connected to the chassis wall; the second end of the brake pedal arm is positioned between and hinged with the two side frame walls; and a second elastic piece is arranged between the brake pedal arm and the bracket so as to store elastic deformation energy when the brake pedal arm rotates towards the braking direction.

6. The pedal system according to claim 5, wherein an accelerator pedal structure is further integrated on the mounting base plate, the accelerator pedal structure includes an accelerator pedal arm, a linkage mechanism is disposed between the accelerator pedal arm and the bracket, the linkage mechanism includes a linkage pull rod, a cam shaft and a parking release cam, the parking release cam is fixed on the cam shaft, the cam shaft is rotatably inserted into two of the bracket side walls of the bracket, one end of the cam shaft is hinged to one end of the linkage pull rod, and the other end of the linkage pull rod is hinged to the accelerator pedal arm and configured to: the acceleration pedal arm rotates towards the acceleration direction, and the cam shaft can be driven to rotate through the linkage pull rod, so that the parking releasing cam pushes the parking hook to be separated from the hook fixing plate.

7. The pedal system according to claim 5, wherein the mounting base plate has an opening corresponding to the bracket, the two side frame walls of the bracket are fixedly connected to the bottom of the mounting base plate, the first end of the brake pedal arm passes through the opening and is located above the mounting base plate, and the pedal system further comprises a baffle plate for blocking the opening.

8. The pedal system according to claim 7, wherein an elastic cushion pad is fixed to a portion of the opening contacting the brake pedal arm.

9. The pedal system according to any one of claims 1 to 8, further comprising a brake structure connected to the brake pedal arm, wherein a buffer device is disposed between the brake pedal arm and the brake structure, the buffer device includes a buffer bracket, a buffer pull rod, and a buffer elastic member, one end of the buffer bracket is hinged to the brake pedal arm, the buffer pull rod is inserted into the buffer bracket, the buffer elastic member is sleeved on the buffer pull rod, and one end of the buffer elastic member abuts against the buffer bracket, and is configured to: when the brake pedal arm rotates towards the braking direction, the braking structure can be pulled through the buffer device, and the buffer elastic piece is in an energy storage state.

10. The pedal system according to any one of claims 1 to 8, wherein a brake light switch is mounted on the mounting base plate, and a shutter is provided on the brake pedal arm and configured to: the brake pedal arm is located at an initial position, the shielding plate abuts against the induction switch of the brake lamp switch, the brake pedal arm drives the shielding plate to rotate towards a braking direction, the induction switch of the brake lamp switch extends out, and a brake signal is sent to a vehicle.