CN109094538B

CN109094538B - Brake pedal mounting structure

Info

Publication number: CN109094538B
Application number: CN201811162042.XA
Authority: CN
Inventors: 李鸿飞
Original assignee: Anhui Jianghuai Automobile Group Corp
Current assignee: Anhui Jianghuai Automobile Group Corp
Priority date: 2018-09-30
Filing date: 2018-09-30
Publication date: 2020-05-19
Anticipated expiration: 2038-09-30
Also published as: CN109094538A

Abstract

The invention discloses a brake pedal mounting structure, which comprises a brake pedal, a booster and a fleeing prevention mechanism, wherein the brake pedal is arranged on the booster; one end of the brake pedal is arranged on the front wall side plate, and the brake pedal is hinged with the front wall side plate; the booster is fixedly arranged on the front side plate, and a boosting push rod is arranged on the booster; one end of the boosting push rod is in transmission connection with the booster, and the other end of the boosting push rod extends towards the direction of the brake pedal; one end of the boosting push rod, which is far away from the booster, is hinged with the brake pedal; be equipped with the fender ring on the helping hand push rod, prevent scurrying the mechanism and install before on the curb plate, prevent scurrying the one end of mechanism and be located the fender ring and keep away from one side of booster to prevent that the helping hand push rod from to the interior drunkenness of driver's cabin. This openly can prevent to scurry behind helping hand push rod when the automobile takes place the frontal collision.

Description

Brake pedal mounting structure

Technical Field

The invention relates to the technical field of automobile parts, in particular to a brake pedal mounting structure.

Background

In a collision of a vehicle running at a high speed, the engine room is pushed toward the driver's cabin by an impact, and the booster mounted in the engine room is pushed toward the driver with the brake pedal. The instinctive reaction of the driver usually makes the driver feel hard to step on the brake pedal to stop the vehicle in case of emergency, which may cause serious injury to the driver.

Referring to fig. 1, fig. 1 is a brake pedal mounting structure with a vacuum booster in the prior art; wherein, the mounting bolt of vacuum booster assembly 1' passes preceding enclosing panel beating 2' and is connected with the mounting hole of footboard base 3' to lock through the nut. The booster push rod 4 'is connected with the pedal arm 5'.

In the brake pedal mounting structure with the vacuum booster in the prior art, when a vehicle is in direct collision and collides with the brake master cylinder, the brake master cylinder drives the booster push rod and pushes the brake pedal arm towards the direction of a cab, and the brake pedal is pushed to move towards the cab, so that legs or feet of a driver are seriously impacted and injured.

How to prevent the booster push rod from moving towards the cab when the automobile is collided with the face is one of the important problems to be solved urgently in the field.

Disclosure of Invention

An object of the present invention is to provide a brake pedal mounting structure that solves the disadvantages of the prior art and prevents a booster rod mounted on a booster from moving in a direction of a cab when a vehicle is subjected to a frontal collision.

The invention provides a brake pedal mounting structure, which comprises a brake pedal, a booster and a channeling prevention mechanism, wherein the brake pedal is arranged on the booster;

one end of the brake pedal is mounted on the front wall side plate, and the brake pedal is hinged with the front wall side plate;

the booster is fixedly arranged on the front side plate, and a boosting push rod is arranged on the booster; one end of the boosting push rod is in transmission connection with the booster, and the other end of the boosting push rod extends towards the direction of the brake pedal; one end of the boosting push rod, which is far away from the booster, is hinged with the brake pedal;

the booster is characterized in that a stop ring is arranged on the boosting push rod, the anti-channeling mechanism is installed on the front side plate, and one end of the anti-channeling mechanism is located on one side, away from the booster, of the stop ring so as to prevent the boosting push rod from channeling into a cab.

Optionally, the brake pedal comprises a mounting seat, a pedal arm and a pedal body;

the mounting seat is fixedly mounted on the front wall side plate, one end of the pedal arm is hinged to the mounting seat, and the pedal body is fixedly mounted at one end, far away from the mounting seat, of the pedal arm;

and one end of the boosting push rod, which is far away from the booster, is hinged with the middle part of the pedal arm.

Optionally, the anti-channeling mechanism comprises a thrust arm, the thrust arm being mounted on the mounting seat;

the lower end of the thrust arm is positioned on one side of the stop ring away from the booster; and a space is reserved between the lower end of the thrust arm and the baffle ring.

Optionally, the lower end of the thrust arm is provided with an avoidance groove.

Optionally, the anti-channeling mechanism further comprises a sliding rod and a thrust block;

the thrust arm is provided with a strip-shaped hole, and the length direction of the strip-shaped hole is consistent with that of the thrust arm;

a through hole is formed in the mounting seat, and the thrust arm penetrates through the through hole;

the sliding rod penetrates through the strip-shaped hole, and two ends of the sliding rod are connected with the side wall of the through hole;

the thrust block is arranged on the front wall side plate and is positioned close to the tubular beam, and a thrust groove is formed in the thrust block; one end of the thrust arm, which is far away from the power-assisted push rod, is positioned in the thrust groove.

Optionally, the anti-channeling mechanism further comprises a fixing rod, one end of the fixing rod is connected with the thrust arm, and the other end of the fixing rod is connected with the mounting seat.

Optionally, a baffle is disposed within the thrust groove.

Optionally, a breaking part is arranged on the power-assisted push rod, and the diameter of the breaking part is smaller than that of the rest part of the power-assisted push rod;

the breaking part is positioned on one side of the baffle ring away from the booster.

Optionally, the thrust arm comprises a thrust plate;

the thrust plate is rectangular shape board, the relative both sides of thrust plate are followed the department and all are equipped with the folded plate, two all be equipped with on the folded plate the bar hole.

Optionally, one end of the folded plate close to the thrust block is provided with a circular arc chamfer.

Compared with the prior art, the power-assisted push rod is provided with the baffle ring, and one end of the anti-channeling mechanism is positioned on one side, away from the front wall side plate, of the baffle ring. When the automobile is in direct collision, the anti-fleeing mechanism can prevent the power-assisted push rod from fleeing towards the interior of the cab, so that the safety of the automobile can be improved.

Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.

FIG. 1 is a prior art brake pedal mounting arrangement with a vacuum booster;

FIG. 2 is a schematic view of a brake pedal mounting structure as set forth in the present disclosure;

FIG. 3 is an isometric view of a brake pedal mounting structure as set forth in the present disclosure;

FIG. 4 is a schematic view of the installation of a brake pedal and a tamper-proof mechanism according to the present disclosure;

FIG. 5 is a schematic view of the brake pedal and the anti-fleeing mechanism of the present disclosure installed from another perspective;

FIG. 6 is a schematic view of an installation structure of a booster and a brake pedal according to the present disclosure;

FIG. 7 is a schematic view of the thrust arm and booster push rod assembly according to the present disclosure;

FIG. 8 is an isometric view of a brake pedal mounting structure according to the present disclosure from another perspective;

FIG. 9 is an isometric view of a thrust arm as set forth in the present disclosure;

FIG. 10 is an isometric view of a booster push rod as set forth in the present disclosure;

fig. 11 is a schematic structural diagram of a thrust block according to the present disclosure.

Description of reference numerals:

1' -vacuum booster assembly, 2' -front wall metal plate, 3' -pedal base, 4' -booster push rod and 5' -pedal arm;

1-a brake pedal, 2-a booster, 3-a channeling prevention mechanism, 4-a front wall side plate and 5-a tubular beam;

11-a mounting seat, 12-a pedal arm and 13-a pedal body;

111-a via;

21-an assisting push rod;

211-stop ring, 212-break-off portion;

31-thrust arm, 32-slide bar, 33-thrust block, 34-fixed bar;

311-avoidance groove, 312-strip-shaped hole, 313-thrust plate and 314-folded plate;

331-a thrust groove;

3311-baffle.

Detailed Description

Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.

The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.

In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

Referring to fig. 2 to 5, the present disclosure proposes a brake pedal mounting structure, which includes a brake pedal 1, a booster 2, and a tamper-proof mechanism 3; the anti-collision mechanism 3 is for preventing the booster push rod 21 mounted on the booster 2 from shifting into the cab when a frontal collision occurs. In specific implementation, one end of the brake pedal 1 is mounted on the front wall side plate 4, and the brake pedal 1 is hinged to the front wall side plate 4.

Referring to fig. 2 and 3, the booster 2 is fixedly mounted on the dash side plate 4, and the booster push rod 21 is mounted on the booster 2. Because booster 2 is the common part among the prior art, to booster 2's specific structure, this disclosure is no longer repeated, nevertheless points out that, in order to solve the drunkenness problem that prevents that helping hand push rod 21 from producing when the car is just bumping to take place, this disclosure has made an improvement to booster push rod 21's specific structure. Specifically, one end of the boosting push rod 21 is in transmission connection with the booster 2, and the other end of the boosting push rod 21 extends towards the brake pedal 1. One end, far away from the booster 2, of the boosting push rod 21 is hinged to the brake pedal 1, and specifically, the boosting push rod 21 is hinged to the brake pedal 1. Thus, when the brake pedal 1 is operated, the boosting push rod 21 can be pushed to move, and the brake boosting is realized. Specifically, the booster 2 in the present disclosure may be any one of the prior art boosters, such as a vacuum booster. Specifically, in order to facilitate connection and installation, a connector is arranged at one end of the boosting push rod 21, which is far away from the booster 2, and comprises a bottom plate and two side plates vertically arranged on the bottom plate, wherein the two side plates are parallel to each other and form a U-shaped connector with the bottom plate; mounting holes are formed in the two side plates. The two side plates are respectively positioned at two sides of the pedal arm 12 of the brake pedal 1 and are hinged with the pedal arm 12 through the mounting holes.

Further on. The booster push rod 21 is provided with a baffle ring 211, the anti-channeling mechanism 3 is installed on the front wall side plate 4, and one end of the anti-channeling mechanism 3 is located on one side, away from the booster 2, of the baffle ring 211 so as to prevent the booster push rod 21 from channeling into a cab. Specifically, the anti-channeling mechanism 3 is installed at a place where the amount of deformation of the dash side panel 4 at the time of collision is small, such as near the tubular beam 5, or the anti-channeling mechanism 3 is directly installed on the tubular beam 5.

During the concrete implementation, after the head-on collision occurs, booster 2 moves backwards, booster push rod 21 moves backwards along with the head-on collision, and baffle ring 211 supports and leans on anti-channeling mechanism 3 to can stop to the interior drunkenness of driver's cabin. At this time, the position of the assist push rod 21 and the position of the assist push rod 21 are changed relative to each other, and the assist push rod 21 moves in the direction of the booster 2, thereby generating the brake assist force. Is beneficial to braking the vehicle and avoiding secondary damage. Meanwhile, the assistance push rod 21 can be prevented from causing damage to the legs of the driver due to the prevention of the play of the assistance push rod 21.

Alternatively, referring to fig. 4 and 5, the brake pedal 1 includes a mounting seat 11, a pedal arm 12, and a pedal body 13. Further, the mounting seat 11 is fixedly mounted on the dash side panel 4, specifically, the mounting seat 11 may be mounted on the dash side panel 4 by bolts, or may be fixed on the dash side panel 4 by welding. Further, one end of the pedal arm 12 is hinged to the mounting seat 11, and the pedal body 13 is fixedly mounted at one end of the pedal arm 12 far away from the mounting seat 11. Specifically, the pedal body 13 and the pedal arm 12 may be welded, and may be integrally formed. One end of the power-assisted push rod 21, which is far away from the power-assisted device 2, is hinged with the middle part of the pedal arm 12.

Alternatively, referring to fig. 6 to 8, the tamper-proof mechanism 3 is mounted on the mount 11; the tamper-proof mechanism 3 includes a thrust arm 31, and the thrust arm 31 is mounted on the mount 11. The lower end of the thrust arm 31 is located on the side of the retainer ring 211 away from the booster 2; the lower end of the push-stop arm 31 is disposed at a predetermined distance from the stopper ring 211, that is, a distance is provided between the lower end of the push-stop arm 31 and the stopper ring 211. So, work as when helping hand push rod 21 is just bumping in the car when to the drunkenness in the driver's cabin, can by the lower extreme of thrust arm 31 blocks, so, make the displacement of helping hand push rod 21 is less than booster 2's displacement, can enough prevent helping hand push rod 21 causes the injury to the driver, can make booster 2 produce auxiliary brake power again, makes the car just bumping the back braking, is favorable to avoiding the secondary damage. Further, the lower end of the thrust arm 31 is provided with an avoidance groove 311. Specifically, dodge groove 311 for the arc wall, dodge groove 311 and be used for dodging helping hand push rod 21, through setting up dodge groove 311, can with the lower extreme of thrust arm 31 sets up lowly, is favorable to the increase when head-on collision takes place keep off ring 211 with area of contact between the thrust arm 31.

Further, referring to fig. 6 to 8, the tamper-proof mechanism 3 further includes a slide bar 32 and a thrust block 33. Specifically, a strip-shaped hole 312 is formed in the thrust arm 31, and the length direction of the strip-shaped hole 312 is consistent with the length direction of the thrust arm 31. In this way, when a collision occurs, the slide rod 32 can slide along the strip-shaped hole 312 to adjust the posture of the thrust arm 31. The mounting seat 11 is provided with a through hole 111, and the thrust arm 31 penetrates through the through hole 111. The slide bar 32 passes through the strip-shaped hole 312, and both ends of the slide bar 32 are connected with the side walls of the through holes 111.

The thrust block 33 is mounted on the dash side panel 4, specifically, the thrust block 33 is mounted on the tubular beam 5 or in the vicinity of the tubular beam 5, that is, the thrust block 33 is less displaced in the event of a collision. The thrust block 33 is provided with a thrust groove 331; one end of the thrust arm 31, which is far away from the power-assisted push rod 21, is located in the thrust groove 331. In this way, the thrust block 33 can prevent the upper end of the thrust arm 31 from being displaced greatly during a frontal collision. When the automobile is specifically installed, the thrust arm 31 is inclined backward in the direction from bottom to top, and the front and back directions referred to in this disclosure are the same as the front and back directions of the automobile itself. Thus, when the direct collision occurs, the booster 2 and the boosting push rod 21 move backwards, and after the boosting push rod 21 moves for a certain distance, the stop ring 211 abuts against the lower end of the thrust arm 31; a small amount of displacement of the upper end of the thrust arm 31 exerts a resistance force on the stopper ring 211 to prevent the power push rod 21 from moving further rearward. Further, in order to fix the anti-fleeing mechanism 3, the anti-fleeing mechanism 3 is prevented from affecting the braking operation in the normal state; the anti-channeling mechanism 3 further comprises a fixing rod 34, one end of the fixing rod 34 is connected with the thrust arm 31, and the other end of the fixing rod 34 is connected with the mounting seat 11. Specifically, the fixing rod 34 is a thin rod which is easy to break, so that after the direct impact occurs, the mounting seat 11, the booster 2 and the booster push rod 21 all move backwards, so that the fixing rod 34 is broken. Since the amount of movement of the lower end of the thrust arm 31 is large and the amount of movement of the upper end of the thrust arm 31 is small, the thrust arm 31 is deflected, so that the lower end of the thrust arm 31 is deflected downward. Thereby pushing the assist push rod 21 downward to bend the assist push rod 21, thereby preventing the assist push rod 21 from moving straight backward to cause injury to the driver. That is, in the present disclosure, the thrust arm 31 can prevent the assist rod 21 from moving backward, and can bend or break the assist rod 21 downward.

Optionally, referring to fig. 11, a baffle plate 3311 is disposed in the thrust groove 331. Specifically, the wall of the thrust groove 331 may be directly used as the baffle 3311, or a baffle 3311 for preventing the upper end of the thrust arm 31 from moving backward may be directly provided in the groove, and when the baffle 331 is provided in the thrust groove 331, ribs may be provided in the thrust groove 331 to increase the strength of the baffle 3311.

As an embodiment, referring to fig. 10, a broken portion 212 is provided on the boost rod 21, and specifically, a diameter of the broken portion 212 is smaller than a diameter of the rest of the boost rod 21. Further, the break-off portion 212 is located on a side of the retainer ring 211 away from the booster 2. In this way, when a frontal collision occurs, the thrust arm 31 applies a downward force to the assist rod 21, thereby breaking the assist rod 21 from the breaking portion 212, and further more effectively preventing the assist rod 21 from injuring the driver.

Specifically, referring to fig. 9, the thrust arm 31 includes a thrust plate 313. The thrust plate 313 is a long strip-shaped plate, the two opposite edges of the thrust plate 313 are provided with folded plates 314, and the two folded plates 314 are provided with strip-shaped holes 312. In this way, the cross section of the thrust arm 31 is made to be U-shaped, which is beneficial to improving the strength of the thrust arm 31. Further, an end of the folded plate 314 close to the thrust block 33 is provided with a circular arc chamfer. Specifically, the arc abuts against the bottom of the thrust groove 331.

Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.

Claims

1. A brake pedal mounting structure is characterized by comprising a brake pedal, a booster and a fleeing prevention mechanism;

a stop ring is arranged on the power-assisted push rod, the anti-channeling mechanism is arranged on the front side plate, and one end of the anti-channeling mechanism is positioned on one side of the stop ring away from the booster so as to prevent the power-assisted push rod from channeling into a cab;

the brake pedal comprises a mounting seat, a pedal arm and a pedal body;

one end of the boosting push rod, which is far away from the booster, is hinged with the middle part of the pedal arm;

the anti-channeling mechanism comprises a thrust arm, and the thrust arm is arranged on the mounting seat;

the lower end of the thrust arm is positioned on one side of the stop ring away from the booster; a space is reserved between the lower end of the thrust arm and the baffle ring;

the anti-channeling mechanism further comprises a sliding rod and a thrust block;

2. The brake pedal mounting structure according to claim 1, wherein the lower end of the thrust arm is provided with an avoidance groove.

3. The brake pedal mounting structure according to claim 1, wherein the anti-channeling mechanism further includes a fixing rod, one end of which is connected to the thrust arm, and the other end of which is connected to the mounting seat.

4. The brake pedal mounting structure according to claim 1, wherein a baffle is provided in the thrust groove.

5. The brake pedal mounting structure according to claim 1, wherein a break-off portion is provided on the assist push rod, and a diameter of the break-off portion is smaller than a diameter of the remaining portion of the assist push rod;

6. The brake pedal mounting structure of claim 1 wherein the thrust arm includes a thrust plate;

7. The brake pedal mounting structure of claim 6 wherein an end of the flap adjacent the thrust block is provided with a rounded chamfer.