A vacuum booster assembly
A vacuum booster and assembly technology, which is applied to brakes, vehicle parts, transportation and packaging, etc., can solve the problems of poor flexibility of vacuum boosters, and achieve good comfort and flexibility
Active Publication Date: 2018-09-25
ZHEJIANG ZHUJI WANBAO MASCH CO TLD
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Problems solved by technology
[0003] The technical problem to be solved by the present invention is to solve the defect of poor flexibility of the vacuum booster in the prior art
Method used
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[0029] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0030] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "inner", "outer" etc. Orientation or positional relationship is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present invention.
[0031] In the description of the...
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The invention discloses a vacuum booster assembly. The vacuum booster assembly comprises a shell, a valve body, an air valve, a control valve, a control valve push rod, an inner spring seat and an outer spring seat, wherein a piston disc and a diaphragm are arranged in the shell; the interior space of the shell is separated into a front chamber and a rear chamber by the diaphragm; a vacuum passage for communicating the front chamber and the rear chamber is arranged in the valve body; the air valve is arranged in the valve body and communicated with the rear chamber; the control valve is used for controlling the vacuum passage and the air valve to be opened and closed; the front end of the control valve push rod is connected with the air valve; the inner spring seat is fixedly arranged in the valve body and sealed together with the inner wall of the valve body in a radial direction; the outer spring seat is fixedly arranged on the control valve push rod; a control valve outer spring is arranged between the inner spring seat and the outer spring seat; the control valve is movably connected with the inner spring seat in an axial direction; and a control valve inner spring is arranged between the control valve and the inner spring seat. Through the adoption of the structure, the force needed to step a braking pedal is small, the flexibility of parts is good, and the taking comfort of a driver is good.
Description
technical field [0001] The invention relates to an automobile braking device, in particular to a vacuum booster assembly. Background technique [0002] The vacuum booster is connected with the brake master cylinder, the purpose is to use the pressure difference between air and vacuum to increase the braking force and shorten the braking distance. In the traditional vacuum booster structure, the control valve push rod is connected to the brake pedal. When the brake pedal is depressed, the brake pedal drives the control valve push rod to move forward. The control valve push rod is also connected to a The control valve that controls the opening and closing of the vacuum valve and the air valve, the control valve closes the vacuum valve and opens the air valve, and the air enters the rear cavity of the vacuum booster, so that the vacuum booster produces a boosting effect. After the pedal is released, the control valve and the control valve push rod return to the state before th...
Claims
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IPC IPC(8): B60T13/57
CPCB60T13/57
Inventor 边届周锏傅礼飞
Owner ZHEJIANG ZHUJI WANBAO MASCH CO TLD