CN2430328Y

CN2430328Y - Hydraulic braking ABS for motorcycle

Info

Publication number: CN2430328Y
Application number: CN 00235173
Authority: CN
Inventors: 李晓辉
Original assignee: YUHUAN KAILING GROUP CORP Ltd
Current assignee: YUHUAN KAILING GROUP CORP Ltd
Priority date: 2000-05-22
Filing date: 2000-05-22
Publication date: 2001-05-16
Anticipated expiration: 2010-05-22

Abstract

The utility model provides a hydraulic braking ABS for a motorcycle. The body of the hydraulic braking ABS for a motorcycle is provided with an oil-entering cavity and a pulsating cavity which are communicated mutually. A piston, a regulating screw, and an energy storing spring are arranged in the pulsating cavity. The piston is also provided with a rubber sealing ring. The oil-entering cavity and the pulsating cavity of the hydraulic braking ABS are isolated by a one-way valve core. A spring which acts on the one-way valve core is arranged in the oil-entering cavity. The body is provided with an oil through hole which communicates the oil-entering cavity with the pulsating cavity. An L-shaped through hole is arranged in the piston. The structure of the utility model is simple. The leakage is prevented, the tyre braking is prevented, and the hydraulic braking ABS for a motorcycle is very suitable for a brake system of a motorcycle.

Description

The motor bike hydraulic brake anti-blocking system

The utility model relates to the hydraulic brake anti-blocking system that a kind of self-propelled vehicle, particularly motor bike are used.

Existing power actuated vehicle, its speed is more and more faster, and is also more and more higher to the requirement of brake system.We know that brake is a kind of violent friction gear.When firmly braking, can form friction between brake facing and the brake disc.If used hypertonia, can cause wheel under fast state prematurely by locking, vehicle slip and get out of hand.In order to address this problem, the anti-lock device of many self-propelled vehiclees has appearred, and the locomotive that provides as Chinese patent 96207921.9 is with the pressure accumulator of hydraulic brake system etc.This class device is owing to be at automobile and design-calculated mainly, and its volume is big, complex structure, can't be applicable to the brake system of motor bike.

The purpose of this utility model is in order to address the above problem, the motor bike hydraulic brake anti-blocking system that provides a kind of simple in structure, anti-leak, anti-band to stop.

The purpose of this utility model adopts following technical proposal to realize: have the oil suction chamber and the pulsation chamber that are interconnected in the body of this motor bike with hydraulic brake anti-blocking system, pulsation is provided with piston and set screw in the chamber, energy-storaging spring is arranged between piston and the set screw, and rubber seal also is housed on the piston.Isolate by nonreturn valve core between oil suction chamber of this device and the pulsation chamber, be provided with the spring that acts on the nonreturn valve core in the oil suction chamber, body is provided with and makes oil suction chamber and the oil through that the pulsation chamber communicates, and a L shaped through hole is arranged in the piston.

In this device, oil suction chamber is communicated with the master cylinder of motor bike, and the pulsation chamber is communicated with the wheel cylinder of motor bike.Nonreturn valve core is pressed on the top in pulsation chamber under the effect of spring, the braking liquid in the oil suction chamber can not directly be entered the pulsation chamber from pulsation top, chamber.Piston in the pulsation chamber is positioned at pulsation top, chamber under the effect of energy-storaging spring, the L shaped through hole in the piston communicates with oil through at this moment.Therefore, when the motor bike emergency braking that travels, the braking liquid of master cylinder from oil suction chamber through the oil through on the body, L shaped through hole the piston after, arrive wheel cylinder from the pulsation chamber.When hydraulic pressure surpass that this device sets make wheel by the pressure of locking the time, the hydraulic pressure in the chamber of pulsing can make piston move down, and until piston oil through is blocked.Like this, no longer include new braking liquid and enter in the pulsation chamber, make the hydraulic pressure in the wheel cylinder can not continue to rise.In case brake off, the pressure of master cylinder descends rapidly, then opens under the hydraulic action of nonreturn valve core in the pulsation chamber, and braking liquid returns the oil suction chamber from the pulsation top of chamber, and initial position is recovered in piston rising simultaneously.

The utility model is described in further detail below in conjunction with embodiment and accompanying drawing thereof.

Fig. 1 is a structural representation of the present utility model.

Among the figure, 1, body; 2, oil suction chamber; 3, oil through; 4, spring; 5, nonreturn valve core; 6, oil inlet; 7, piston; 8, L shaped through hole; 9, energy-storaging spring; 10, set screw; 11, pulsation chamber; 12, seal ring; 13, oil outlet pipe; 14, convex shoulder.

As shown in the figure, this motor bike is connected on hydraulic brake anti-blocking system between the master cylinder and wheel cylinder of motor bike, and master cylinder communicates with oil suction chamber 2 by oil inlet 6, and wheel cylinder communicates with pulsation chamber 11 by oil outlet pipe 13.Between oil suction chamber 2 in the body 1 and the pulsation chamber 11 is convex shoulder 14.Nonreturn valve core 5 in the oil suction chamber 2 is being pressed on the convex shoulder 14 under the effect of spring 4, and the braking liquid in the oil suction chamber 2 can not be entered in the pulsation chamber 11 from here.

Pulsation is provided with piston 7, energy-storaging spring 9 and set screw 10 in the chamber 11.One L shaped through hole 8 is arranged, sidepiece in the piston 7 from the top middle portion of piston 7 to piston 7.Oil through 3 outlet on the body 1 is positioned at pulsation chamber 11 sidepieces, under non-braking mode corresponding to the L shaped through hole 8 in the piston 7.Rubber seal 12 on the piston 7 seals, and prevents that braking liquid from passing through piston 7 and flowing into pulsation 11 bottoms, chamber.In this device, the elastic force of energy-storaging spring 9 will determine the maximum pressure that wheel cylinder will reach.This pressure can realize that its size is normally comprehensively set up according to the friction coefficient between the concrete inertia of motor bike and wheel and road surface by rotation set screw 10.

The working process of this device is: during braking brake, at first high hydraulic brake fluid from oil inlet 6 by oil suction chamber 2 and oil through 3 to pulsation chamber 11; Then, piston 7 moves down under the effect of high hydraulic brake fluid, closes oil through 3 gradually and realizes throttling.When the hydraulic pressure in pulsation chamber 11 and the oil outlet pipe 13 reached the pressure that sets, oil through 3 was sealed by piston 7, and the hydraulic pressure in the wheel cylinder can not continue to rise, and has prevented the appearance of locking phenomenon effectively.Behind brake off, the pressure of oil suction chamber 2 descends rapidly, and nonreturn valve core 5 is opened, and braking liquid returns oil suction chamber 2 from nonreturn valve core 5.Simultaneously, piston 7 is also pushed back by energy-storaging spring 9, and pulsation chamber 11 communicates again with oil through 3, and braking liquid also can return oil suction chamber 2 through oil through 3.

In using this device process, when the wheel cylinder place causes the pressure in pulsation chamber 11 to descend suddenly because of accidental causes such as leakages, piston 7 can upwards be promoted by energy-storaging spring 9, oil through 3 and pulsation chamber 11 are connected again, high hydraulic brake fluid can replenish rapidly, reach balance once more until piston 7 top pressure and energy-storaging spring 9, thereby can avoid leaking and the serious consequence of generation suddenly.

Compared with prior art, the utlity model has following advantages:

1, the utility model is simple in structure, and the brake system that is very suitable for motorcycle is used;

2, because piston relies on the Unidirectional acting force of energy-storaging spring, in case oil circuit leaks energy Make rapidly the oil circuit conducting, replenish brake fluid, but the serious consequence that Leakage prevention produces;

3, behind brake off, brake fluid can return simultaneously from oil through and nonreturn valve core Return, the hydraulic pressure rapid decrease that makes wheel cylinder is zero, and that has avoided that caliper produces that band stops can Can property.

Claims

1, a kind of motor bike hydraulic brake anti-blocking system, have the oil suction chamber (2) and the pulsation chamber (11) that are interconnected in its body (1), be provided with piston (7) and set screw (10) in the pulsation chamber (11), energy-storaging spring (9) is arranged between piston (7) and the set screw (10), rubber seal (12) also is housed on the piston (7), it is characterized in that isolating by nonreturn valve core (5) between described oil suction chamber (2) and the pulsation chamber (11), be provided with the spring (4) that acts on the nonreturn valve core (5) in the oil suction chamber (2), body (1) is provided with and makes oil suction chamber (2) and the oil through (3) that pulsation chamber (11) communicates, and a L shaped through hole (8) is arranged in the piston (7).

2, motor bike hydraulic brake anti-blocking system according to claim 1 is characterized in that being convex shoulder (14) between described oil suction chamber (2) and the pulsation chamber (11) that nonreturn valve core (5) is pressed on the convex shoulder (14).