Brake pedal capable of preventing brake lamp switch from falling off

Abstract

The utility model discloses a brake pedal with an anti-disengagement brake lamp switch, which comprises a pedal support assembly, a pedal arm assembly and the brake lamp switch, the pedal arm assembly can rotate on the pedal support assembly, the brake lamp switch is fixed on the pedal support assembly, and the brake lamp switch is in trigger connection with a switch trigger piece on the pedal arm assembly; according to the design, the limiting piece used for limiting reverse rotation of the pedal arm assembly is additionally arranged on the pedal support assembly, so that it is guaranteed that a brake lamp switch trigger is not jacked up by a switch trigger piece to cause switch disengagement or displacement, and the problem that a brake lamp fails to work is effectively solved.

Description

Technical Field

[0001] The utility model belongs to the field of brake pedal assemblies for passenger vehicles, in particular to a brake pedal which can prevent a brake light switch from falling out. Background Art

[0002] At present, the pedal arm in the brake pedal and the booster push rod are generally connected using a ball cage structure. The working end of the booster is fixed in the ball cage by a self-lubricating ball head. This structure can effectively reduce the abnormal noise and shaking caused by the traditional pin shaft connection, while improving assembly efficiency. However, because the plastic ball cage claw is a non-rigid plastic part, the ball head may not be assembled properly or may be repeatedly collided and worn, which will cause the claw to deform. The deformation of the claw will directly cause the ball head to be squeezed out of the ball cage, which will cause the pedal arm welded to the ball cage to bounce back due to the rebound of the claw. After the switch trigger on the pedal arm is lifted, the brake light switch will be knocked crooked, causing the brake light to be constant. In severe cases, the brake light switch will be pushed out, causing the brake light display to fail. Utility Model Content

[0003] The utility model provides a brake pedal for preventing a brake light switch from falling out, which is used to solve the problem of easy falling out of the brake light switch in existing products.

[0004] In order to solve the above technical problems, the technical solution of the present invention is: a brake pedal for preventing a brake light switch from falling out, comprising a pedal bracket assembly, a pedal arm assembly, and a brake light switch, the axial hole end of the pedal arm assembly being connected to the pedal bracket assembly through a central rotating shaft, the brake light switch being fixed on the pedal bracket assembly, and the brake light switch being triggered and connected to a switch trigger piece on the pedal arm assembly; it is characterized in that: a limit member is provided in the pedal bracket assembly, a gap is reserved between the limit member and the axial hole end of the pedal arm assembly, and the limit member can limit the axial hole end of the pedal arm assembly.

[0005] The above technical solution is further limited to the structure of the limiting component: a cut tongue is provided on the inner side of the pedal bracket assembly, and the flange portion of the cut tongue can limit the shaft hole end of the pedal arm assembly.

[0006] The above technical solution is further defined as the structure of the pedal bracket assembly: includes a left bracket, a right bracket, a front connecting bracket, a rear connecting bracket and a brake light switch mounting bracket, one end of the left bracket and the right bracket are connected as one body through the front connecting bracket, the other end of the left bracket and the right bracket are connected as one body through the rear connecting bracket, and the brake light switch mounting bracket is fixed on the left bracket.

[0007] The above technical solution is further defined as follows: the structure of the pedal arm assembly includes a pedal arm, a pedal piece, a ball cage, an axle tube, and a switch trigger piece, wherein the pedal piece is fixed to one end of the pedal arm, the ball cage is fixed in a slot in the middle of the pedal arm, and the axle tube is fixed to the other end of the pedal arm.

[0008] The switch trigger piece is fixed on the side of the middle part of the pedal arm.

[0009] Beneficial effect: This design adds a limiter to the pedal bracket assembly to limit the reverse rotation of the pedal arm assembly, thereby ensuring that the brake light switch trigger will not be lifted by the switch trigger plate and cause the switch to fall out or shift, effectively avoiding the problem of brake light failure. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic structural diagram of the utility model.

[0011] Figure 2 yes Figure 1 Stereoscopic image.

[0012] Figure 3 It is a three-dimensional diagram of the limiting member in the utility model.

[0013] Figure 4 This is a state diagram of the utility model. DETAILED DESCRIPTION

[0014] like Figure 1 and Figure 2 As shown, a brake pedal for preventing a brake light switch from dislodging includes a pedal bracket assembly 1, a pedal arm assembly 2, a brake light switch 3, a central rotating shaft 4, and a stopper 5. The pedal bracket assembly 1 comprises a left bracket 101, a right bracket 102, a front connecting bracket 103, a rear connecting bracket 104, and a brake light switch mounting bracket 105. One end of the left bracket and the right bracket are integrally connected via the front connecting bracket, and the other end of the left bracket and the right bracket are integrally connected via the rear connecting bracket. The brake light switch mounting bracket is fixed to the left bracket, and the brake light switch 3 is fixed to the brake light switch mounting bracket. The pedal bracket assembly is welded together by the left and right brackets, the front and rear connecting brackets, and the brake light switch mounting bracket. This structure is simple, easy to produce, uses less material, and is conducive to lightweighting and reducing production costs.

[0015] like Figure 1 and Figure 2 As shown, the structure of the pedal arm assembly 2 includes a pedal arm 201, a pedal plate 202, a ball cage 203, a shaft tube 204, and a switch trigger piece 205. The pedal plate is fixed to one end of the pedal arm, the ball cage is fixed in a slot in the middle of the pedal arm, and the shaft tube is fixed to the other end of the pedal arm. The shaft tube on the pedal arm is connected to the pedal bracket assembly via a central rotating shaft 4, allowing the pedal arm to rotate. The switch trigger piece is fixed to the side of the middle of the pedal arm, and the brake light switch is triggered and connected to the switch trigger piece on the pedal arm assembly. The pedal arm assembly is welded together by the pedal arm, pedal plate, ball cage, shaft tube, and switch trigger piece.

[0016] like Figure 3 and Figure 4 As shown, the limiting member 5 is fixed on the right bracket 102, and a gap is reserved between the limiting member and the shaft hole end of the pedal arm assembly, so that the limiting member can limit the shaft hole end of the pedal arm assembly;

[0017] like Figure 3 and Figure 4 As shown, the structure of the limiter 5 is as follows: a tongue is punched out on the right bracket by using a stamping and cutting process, and a local flange is formed to form a limiter, so that the shaft hole end of the pedal arm assembly can be limited; the overall structure is simple, and compared with the existing brake pedal, there are no additional parts. The overall structure is simple and compact, and the cost is not increased compared with the existing brake pedal.

[0018] After the pedal arm assembly is assembled normally, when the brake pedal is in the upper limit position (the ball cage and the vehicle booster push rod ball head are assembled in place), the switch trigger piece contacts the brake light switch, and the right bracket limit piece and the end of the pedal arm are parallel and have a certain gap. When the driver steps on the pedal normally, driving the pedal arm assembly to rotate, the switch trigger piece rotates downward, disengaging from the brake light switch, and the brake light switch is triggered to generate a brake signal; when the ball joint ball head is not assembled in place or is worn out due to multiple collisions, the brake pedal works abnormally, the ball joint claw is deformed, which will cause the ball head to be squeezed out of the ball cage, and the pedal arm assembly rotates in the opposite direction and jumps out. At this time, the switch trigger piece rotates upward, and after the pedal arm shaft hole end rotates downward to a certain safe angle, the pedal arm hits the limit piece of the right bracket (such as Figure 4 As shown), reverse rotation stops, which ensures that the brake light switch trigger will not push up the switch to cause the switch to fall out or shift, thereby avoiding failure of the brake light; the limit member can be replaced by a screw or a welded metal block.

Claims

1. A brake pedal with a brake light switch that prevents it from being dislodged, comprising a pedal bracket assembly, a pedal arm assembly, and a brake light switch, wherein the axial hole end of the pedal arm assembly is connected to the pedal bracket assembly via a central rotating shaft, the brake light switch is fixed to the pedal bracket assembly, and the brake light switch is triggered by a switch trigger plate on the pedal arm assembly; characterized in that: A limiting piece is provided in the pedal bracket assembly, and a gap is reserved between the limiting piece and the shaft hole end of the pedal arm assembly. The limiting piece can limit the shaft hole end of the pedal arm assembly.

2. The brake pedal for preventing the brake light switch from falling out according to claim 1, characterized in that: The structure of the limiting component is as follows: a cut tongue is provided on the inner side of the pedal bracket assembly, and the flange portion of the cut tongue can limit the shaft hole end of the pedal arm assembly.

3. A brake pedal for preventing a brake light switch from falling out according to claim 1 or 2, characterized in that: The structure of the pedal bracket assembly includes a left bracket, a right bracket, a front connecting bracket, a rear connecting bracket and a brake light switch mounting bracket. One end of the left bracket and the right bracket are connected as a whole through the front connecting bracket, and the other end of the left bracket and the right bracket are connected as a whole through the rear connecting bracket. The brake light switch mounting bracket is fixed on the left bracket.

4. The brake pedal for preventing the brake light switch from falling out according to claim 3, characterized in that: The structure of the pedal arm assembly includes a pedal arm, a pedal piece, a ball cage, an axle tube, and a switch trigger piece. The pedal piece is fixed on one end of the pedal arm, the ball cage is fixed in the slot in the middle of the pedal arm, the axle tube is fixed on the other end of the pedal arm, and the switch trigger piece is fixed on the side surface in the middle of the pedal arm.

Images