CN201568502U

CN201568502U - Single-acting braking wheel cylinder assembly

Info

Publication number: CN201568502U
Application number: CN2009201805426U
Authority: CN
Inventors: 夏坤财
Original assignee: Wuhu Hengkun Auto Parts Co Ltd
Current assignee: Wuhu Hengkun Auto Parts Co Ltd
Priority date: 2009-11-13
Filing date: 2009-11-13
Publication date: 2010-09-01
Anticipated expiration: 2019-11-13

Abstract

The utility model discloses a single-acting braking wheel cylinder assembly comprising a cylinder body, wherein an adjusting piston and a leather ring are arranged in a working chamber of the cylinder body, an oil inlet and an air outlet which are communicated with the working chamber are arranged on the cylinder body, a sealing ring and a dustproof plug are screwed in the oil inlet, an air outlet screw is screwed in the air outlet, and a screw cap is screwed at the top of the air outlet screw. The single-acting braking wheel cylinder assembly is characterized in that the adjusting screw is arranged in the middle of the adjusting piston, an annular dust cover is arranged between the exterior of the cylinder body and the adjusting piston, an adjusting wheel locking sheet is also fixedly connected on the cylinder body, and the end part of the adjusting wheel locking sheet is provided with a limit boss blocked at the external end of the adjusting piston. The single-acting braking wheel cylinder assembly has simple structure, the clearance between the piston and the working chamber of a wheel cylinder is adjustable, and the position of the piston in the working chamber of the wheel cylinder is easy to control; and simultaneously, sealing between the piston and the wheel cylinder is good, oil leakage is avoided, and the single-acting braking wheel cylinder assembly is also characterized by low cost, long service life and the like.

Description

Single-acting wheel cylinder assembly

Technical field:

The utility model relates generally to a kind of brake system of car, relates in particular to a kind of single-acting wheel cylinder assembly.

Technical background:

At present, in the brake system of car entire work process, all parts and instrument need remain on the fixed position, will mobile part and instrument, the transmission device that needs employing, be generally the wheel cylinder of hydraulic type, number difference according to break, wheel cylinder can be divided into double-action wheel cylinder and single-acting wheel cylinder, but existing wheel cylinder is simple in structure, and the gap of long-term piston in the cylinder body active chamber can be able to not be adjusted, the bad control in the mobile position of piston in the cylinder body active chamber simultaneously, thereby influence proper functioning, and because poor sealing between piston and the cylinder body, it is poorly sealed and oil leakage phenomenon takes place that wheel cylinder takes place easily.

The model utility content:

The purpose of this utility model is in order to remedy the deficiency of prior art, a kind of single-acting wheel cylinder assembly is provided, solved in the brake system of car, gap in piston and the wheel cylinder active chamber can not be adjusted, and the bad control in the position of piston in the wheel cylinder active chamber, influence working efficiency, simultaneously poor sealing and problem such as leakage of oil occurs between piston and the cylinder body.

The utility model is achieved through the following technical solutions:

A kind of single-acting wheel cylinder assembly, include cylinder body, be provided with the adjustment piston in the described cylinder body active chamber, adjust pistons end and be with apron, described cylinder body is provided with filler opening and the air vent with active chamber UNICOM, be combined with seal ring and dust plug in the described filler opening, be combined with bleed screw in the described air vent, described bleed screw top is combined with nut, it is characterized in that: described adjustment piston middle part is provided with the adjustment screw, is socketed with annular dust-proof cover between described outer wall of cylinder block and the adjustment pistons end outer wall, also is fixedly connected with on the described cylinder body and adjusts the wheel lock banking stop, there is positive stop lug boss the end of described adjustment wheel lock banking stop, and retaining is being adjusted the piston outer end.

Effect of the present utility model is the hydraulic coupling that brake master cylinder is transmitted, be converted to mechanical thrust by piston, adjust piston simultaneously and adjust the use of taking turns lock banking stop, controlled the gap in piston and the cylinder body active chamber, control effective travel simultaneously, improved working efficiency.

The utility model has the advantages that:

The utility model is simple in structure, and the adjustable gaps in piston and the wheel cylinder active chamber is whole, and the position of piston in the wheel cylinder active chamber controlled easily, and piston and wheel cylinder good airproof performance leakage of oil can not occur, but also have characteristics such as cost is low, long service life simultaneously.

Description of drawings:

Fig. 1 is the utility model structural representation.

Fig. 2 is the utility model schematic cross-section.

Embodiment:

A kind of single-acting wheel cylinder assembly, include cylinder body 1, be provided with in the described cylinder body active chamber and adjust piston 3 and apron 8, described cylinder body 1 is provided with filler opening and the air vent with active chamber UNICOM, be combined with seal ring 12 and dust plug 11 in the described filler opening, be combined with bleed screw 9 in the described air vent, be combined with nut 10 on the described bleed screw 9, adjust piston 3 middle parts and be provided with adjustment screw 2, be socketed with annular dust-proof cover 4 between described outer wall of cylinder block and the adjustment piston 3 end outer walls, also be fixedly connected with by screw 5 and spring washer 6 on the described cylinder body 1 and adjust wheel lock banking stop 7, there is positive stop lug boss the end of adjusting wheel lock banking stop 7, and retaining is being adjusted piston 3 outer ends.

Claims

1. single-acting wheel cylinder assembly, include cylinder body, be provided with the adjustment piston in the described cylinder body active chamber, adjust pistons end and be with apron, described cylinder body is provided with filler opening and the air vent with active chamber UNICOM, be combined with seal ring and dust plug in the described filler opening, be combined with bleed screw in the described air vent, described bleed screw top is combined with nut, it is characterized in that: described adjustment piston middle part is provided with the adjustment screw, is socketed with annular dust-proof cover between described outer wall of cylinder block and the adjustment pistons end outer wall, also is fixedly connected with on the described cylinder body and adjusts the wheel lock banking stop, there is positive stop lug boss the end of described adjustment wheel lock banking stop, and retaining is being adjusted the piston outer end.