Novel step shaft type brake master cylinder piston capable of saving production cost
A brake master cylinder and production cost technology, which is applied in the field of new stepped shaft brake master cylinder pistons, can solve the problems of poor durability of the apron and complicated process of piston processing and compensation holes, so as to improve the working durability and save production and processing cost effects
Pending Publication Date: 2019-07-05
厦门永裕机械工业有限公司
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[0003] The purpose of the present invention is to provide a new stepped shaft type brake master cylinder piston which saves production costs, so as to solve the problems of poor durability of the apron in the existing master cylinder and complicated process of processing the compensation hole of the piston
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[0019] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0020] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the refe...
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The invention provides a novel step shaft type brake master cylinder piston capable of saving production cost. The novel step shaft type brake master cylinder piston capable of saving the production cost comprises a master cylinder body; a first master cylinder piston is arranged in the master cylinder body; a first pressure leather collar is arranged on one side of the external end of the first master cylinder piston; a first assistant leather collar is arranged on one side of the first pressure leather collar; a first return spring seat is arranged in the first master cylinder piston; a first return spring is arranged between the first return spring seat and the first master cylinder piston; a second master cylinder piston is arranged at one end of the first return spring seat; a secondreturn spring seat is arranged in the second master cylinder piston; a second return spring is arranged between the second return spring seat and the second master cylinder piston; a second pressure leather collar is arranged on one side of the external end of the second master cylinder piston; and a second assistant leather collar is arranged on one side of the second pressure leather collar. Thenovel step shaft type brake master cylinder piston capable of saving the production cost has the beneficial effects that the piston structure is changed, a problem of breakage caused by friction between a leather collar and a compensation hole is solved, the working durability is enhanced, and a lot of production and machining cost of the piston is also saved.
Description
technical field [0001] The invention relates to auto parts, in particular to a novel stepped shaft type brake master cylinder piston which saves production costs. Background technique [0002] At present, the method of replenishing oil for the master cylinder is to process the compensation hole on the piston, and the brake fluid can achieve the purpose of replenishing oil through the channel of the compensation hole. The oil passing speed depends on the number and diameter of the compensation hole. The inner diameter of the apron is matched with the outer diameter of the piston to achieve a sealed state. When the compensation hole passes through the apron, the sharp corner at the intersection of the compensation hole and the outer diameter of the piston is likely to wear the apron, resulting in damage to the apron. As for the poor durability of the apron, and this type of piston processing compensating hole process is more complicated, wasting a large amount of production co...
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Patent Timeline
Login to View More IPC IPC(8): B60T11/16B60T11/236F16D65/14F16D121/04F16D125/06
CPCB60T11/16B60T11/236F16D65/14
Inventor 范秀娟林锦明
Owner 厦门永裕机械工业有限公司