CN211308524U

CN211308524U - Brake pedal

Info

Publication number: CN211308524U
Application number: CN201922438486.8U
Authority: CN
Inventors: 潘亚敏; 韩星
Original assignee: Shanxi Guoli Information Technology Co Ltd
Current assignee: Shanxi Guoli Information Technology Co Ltd
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2020-08-21
Anticipated expiration: 2029-12-30

Abstract

The problem that there is the potential safety hazard for solving current auxiliary brake who has retardant recognition function, the utility model provides a brake pedal. The utility model discloses improve and lie in: the pedal connecting rod comprises a first pedal connecting rod and a second pedal connecting rod; the upper end of the first pedal connecting rod is hinged with the lower end of the second pedal connecting rod through a rotating shaft; the first pedal connecting rod can rotate upwards around the rotating shaft under the condition of external force retardation. The utility model discloses a brake pedal can replace the brake pedal of current vehicle, with the existing auxiliary brake collaborative work of vehicle, when automatic emergency braking, when foreign matter or driver's foot stretches into the footboard bottom carelessly, the auxiliary brake of vehicle still can continue the braking, and footboard bottom foreign matter reaction force makes the footboard can round revolving axle counter-clockwise motion, prevents that firm foreign matter from damaging braking system part or prevents that driver's foot from being pressed from both sides and hindering.

Description

Brake pedal

Technical Field

The utility model relates to a brake pedal especially relates to one kind under automatic emergency braking state, prevents that the retarding influence of foreign matter from continuing the brake pedal of braking.

Background

A conventional vehicle auxiliary brake includes a housing, a pedal force input unit, an electromotive force generating unit, a supporting and guiding unit, a returning unit, a pedal force transmitting unit, an electromotive force transmitting unit, and a braking force output unit; a pedal force input unit for receiving a pedal force from a driver; an electromotive force generating unit for generating electromotive force; the supporting and guiding unit is used for supporting the pedal force transmission unit and the electric power transmission unit in the shell and ensuring that the pedal force transmission unit and the electric power transmission unit can only move along the axial direction; the resetting unit is used for resetting the pedal force transmission unit and the electric power transmission unit; the pedal force transmission unit is used for transmitting the pedal force to the braking force output unit; the electric power transmission unit is used for transmitting electric power to the braking force output unit; the braking force output unit is used for loading the pedal force output by the pedal force input unit and/or the electric power output by the electric power generation unit on the master cylinder.

At present, on the basis of the conventional vehicle auxiliary brake, an auxiliary brake with a blocking recognition function is designed, and the principle is that when the brake pedal is blocked by a foreign object or the driver's foot is inadvertently inserted into the bottom of the brake pedal and clamped in the automatic braking mode, the control part of the electromotive force generating unit recognizes that the brake pedal is blocked and stops generating the electromotive force continuously to stop braking, so as to achieve the purposes of preventing the brake system components from being damaged by the strong foreign object and preventing the driver's foot from being hurt by the clamping, for example, the auxiliary brake disclosed in patent documents with publication numbers CN 109131270a and CN 107949507 a.

However, the auxiliary brake described above carries a risk that when the mechanism recognizes that the brake pedal is blocked, the continued braking will be stopped, which at the time of crisis will result in the vehicle hitting an obstacle ahead, and even in the injury or death of the vehicle occupant or pedestrian.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem that there is the potential safety hazard in the current auxiliary brake who has retardant recognition function, the utility model provides a brake pedal.

The technical scheme of the utility model is that:

a brake pedal comprises a pedal, a pedal fixing seat, a pedal connecting rod and a pedal force output rod; the lower end of the pedal connecting rod is hinged with the pedal, and the upper end of the pedal connecting rod is hinged with the pedal fixing seat;

it is characterized in that:

the pedal connecting rod comprises a first pedal connecting rod and a second pedal connecting rod; the upper end of the first pedal connecting rod is hinged with the lower end of the second pedal connecting rod through a rotating shaft;

the first pedal connecting rod can rotate upwards around the rotating shaft under the condition of external force retardation.

Further, a pedal stop surface is arranged at the lower end of the second pedal connecting rod.

Furthermore, a micro-force locking mechanism is arranged on the first pedal connecting rod or the second pedal connecting rod and close to the rotating shaft.

Furthermore, the micro-force locking mechanism comprises a spring and a collision ball which are sequentially arranged along the direction parallel to the rotating shaft.

Compared with the prior art, the utility model has the advantages that:

1. the utility model discloses a brake pedal can replace the brake pedal of current vehicle, with the existing auxiliary brake collaborative work of vehicle, when automatic emergency braking, when foreign matter or driver's foot stretches into the footboard bottom carelessly, the auxiliary brake of vehicle still can continue the braking, simultaneously because the reaction force of footboard bottom foreign matter or driver's foot for the footboard can be round revolving axle counter-clockwise motion, prevent that firm foreign matter from damaging braking system part or prevent that driver's foot from being pressed from both sides and hindering.

2. The utility model discloses a brake pedal can be applied to traditional vehicle auxiliary brake, still can automatic emergency braking, prevent pressing from both sides the foot and prevent that the foreign matter is retardant to lead to the local impaired purpose of auxiliary brake system when can realize the footboard retardant, and the implementation cost is very low.

3. The utility model discloses simple structure, easy realization.

Drawings

Fig. 1 is a schematic structural diagram of the brake pedal of the present invention.

Fig. 2 is an exploded view of fig. 1.

Fig. 3 is a schematic sectional view taken along line B-B of fig. 1.

Fig. 4 is a partially enlarged view of fig. 3 at C.

Fig. 5 is a schematic sectional view (normal braking state) of the brake pedal according to the present invention.

Fig. 6 is a schematic cross-sectional view of the brake pedal of the present invention (i.e., the reverse state after clamping the foot).

Description of reference numerals:

101-pedal, 102-first pedal connecting rod, 103-pivot shaft, 104-second pedal connecting rod, 105-pedal fixing seat, 106-pedal force output rod, 107-pedal stop surface, 108-micro force locking mechanism, 1081-spring, 1082-collision ball.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

As shown in fig. 1 to 6, the present invention provides a brake pedal, which comprises a pedal 101, a first pedal connecting rod 102, a second pedal connecting rod 104, a pedal fixing seat 105 and a pedal force output rod 106 (the other end of the pedal force output rod 106 is used for connecting with a pedal force input rod of a vehicle auxiliary brake, and inputting the pedal force applied by a driver into the vehicle auxiliary brake); one end of the first pedal connecting rod 102 is hinged with the pedal 101, the other end of the first pedal connecting rod 102 is hinged with one end of the second pedal connecting rod 104 through a rotating shaft 103, and the other end of the second pedal connecting rod 104 is hinged with the pedal fixing seat 105; one end of the first pedal connecting rod 102 is provided with a pedal stop surface 107 so that the pedal 101 can only perform a rotational movement within a certain range around the rotation axis 103.

A micro-force locking mechanism 108 for locking the relative positions of the first pedal 102 and the second pedal 104 is arranged on the first pedal 102 near the rotating shaft 103; the micro-force locking mechanism 108 includes a spring 1081 and a collision ball 1082 which are sequentially provided in a direction parallel to the rotation shaft 103. In other embodiments, the low-force locking mechanism 108 may also be disposed on the second pedal 104.

The brake pedal provided by the utility model is suitable for the existing auxiliary brake of any structure, such as the auxiliary brake disclosed in the publication No. CN 105398440A, CN 106427966A, and can achieve the purposes of preventing the foot from being clamped and preventing firm foreign matters from damaging the parts of the brake system; when the embodiment is combined with the conventional auxiliary brake with an automatic emergency braking function of any structure, the purpose of automatic emergency braking under a blocking state can be realized.

The principle of the utility model is as follows:

during normal braking, due to the limitation of the pedal stop surface 107, when a driver steps on the pedal 101, the pedal 101 moves forwards together with the first pedal connecting rod 102 and the second pedal connecting rod 104 to perform braking action;

in the automatic emergency braking mode, when the foot of the driver accidentally extends into the bottom of the pedal 101, or there is a foreign object at the bottom of the pedal 101, the pedal 101 drives the first pedal connecting rod 102 to move upward around the rotating shaft 103 due to the reaction force of the foot of the driver or the foreign object at the bottom of the pedal 101 (in the process, the first pedal connecting rod 102 presses the collision ball 1082 downward to overcome the locking micro force), so as to achieve the purpose of preventing the brake system components from being damaged by the foreign object and preventing the foot of the driver from being pinched; meanwhile, the pedal force output rod 106 can continue to translate under the action of the braking force, so as to drive the second pedal connecting rod 104 to move clockwise, and the auxiliary brake is not prevented from continuing to perform the braking operation.

Claims

1. A brake pedal comprises a pedal (101), a pedal fixing seat (105), a pedal connecting rod and a pedal force output rod (106); the lower end of the pedal connecting rod is hinged with the pedal (101), and the upper end of the pedal connecting rod is hinged with the pedal fixing seat (105);

the method is characterized in that:

the pedal connecting rod comprises a first pedal connecting rod (102) and a second pedal connecting rod (104); the upper end of the first pedal connecting rod (102) is hinged with the lower end of the second pedal connecting rod (104) through a rotating shaft (103);

the first pedal connecting rod (102) can rotate upwards around the rotating shaft (103) under the condition of external force resistance.

2. The brake pedal of claim 1, wherein:

the lower end of the second pedal connecting rod (104) is provided with a pedal stop surface (107).

3. The brake pedal according to claim 1 or 2, characterized in that:

and a micro-force locking mechanism (108) is arranged on the first pedal connecting rod (102) or the second pedal connecting rod (104) close to the rotating shaft (103).

4. The brake pedal of claim 3, wherein: the micro-force locking mechanism (108) comprises a spring (1081) and a collision ball (1082) which are sequentially arranged along the direction parallel to the rotating shaft (103).