Brake master cylinder
A technology of brake master cylinder and piston, which is applied in the field of brake master cylinder to achieve the effect of reducing force and noise
Pending Publication Date: 2020-09-18
漳浦县伟发汽车配件制造有限公司
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- Application Information
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Problems solved by technology
[0005] However, when stepping on the brake pedal to drive the first piston body and the second piston body to move downward, it is necessary to overcome the elastic force of a spring at the lower end of the piston and a return spring in the first valve body and the second valve body. , and in order to ensure that the spring can return to its position and seal the effect, these springs generally have a relatively high stiffness coefficient k, resulting in the need for a large force to step on the brake pedal to push the pistons to move
Method used
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Embodiment Construction
[0046] The following is attached Figure 1-6 The application is described in further detail.
[0047] The embodiment of the present application discloses a brake master cylinder. refer to figure 1 with figure 2 , The brake master cylinder includes a housing 1 , a first piston 2 , a second piston 3 , a first valve body 4 and a second valve body 5 . When the first piston 2 moves, it drives the first valve body 4 to move and open. When the first valve body 4 is opened, it drives the second piston 3 to move. Finally, the second piston 3 opens the second valve body 5 to realize the gap between the piston and the valve body. of mutual linkage.
[0048] The inside of the housing 1 is a cavity. The housing 1 includes an upper shell 6 and a lower shell 7 connected up and down. A cover 8 is attached to the upper end of the housing 1 by bolts, and the lower end is closed. The upper shell 6 and the lower shell 7 are also closed. Locking by bolt and nut assembly. In addition, a firs...
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The invention relates to the technical field of automobile accessories, in particular to a brake master cylinder, which comprises: a shell, wherein a first air inlet hole, a second air inlet hole, a first air outlet hole and a second air outlet hole which communicate with the interior of the shell are formed in the outer side of the shell; the first piston and the second piston which are in indirect linkage; a first valve body which is automatically reset, wherein one side of the first valve body is in linkage with the first piston, and the other side of the first valve body is in linkage withthe second piston; a second valve body that is linked with the second piston; a first sealing cavity that comprises a first air inlet cavity and a first air outlet cavity, wherein the first air inlethole is communicated with the first air inlet cavity, and the first air outlet hole is communicated with the first air outlet cavity; a second sealing cavity which is positioned between the first valve body and the second piston; and a communicating hole which is formed in the shell and communicates with the first air inlet cavity and the second sealing cavity. The brake master cylinder has the effect of reducing the force applied to the brake pedal.
Description
technical field [0001] The present application relates to the field of auto parts, in particular to a brake master cylinder. Background technique [0002] At present, large-scale cars generally need to use the brake master cylinder, the brake master cylinder is connected with the brake calipers and pedals of the car, and the action of the brake master cylinder is driven by the action of stepping on the pedal, and the action of the brake master cylinder is used to push the brake. The action of the caliper, the brake caliper presses the friction plate and the brake disc on the hub to perform the braking effect. [0003] The patent with the notification number CN103112446B discloses a brake pump for automobile brake systems, including a first piston body, a second piston body, a first valve body and a second valve body, and the first piston body is provided with Piston rod, piston and piston cylinder, the second piston body is provided with the second piston, between the first...
Claims
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IPC IPC(8): B60T13/24
CPCB60T13/24
Inventor 徐志伟
Owner 漳浦县伟发汽车配件制造有限公司