CN219214978U

CN219214978U - 10-inch vacuum booster assembly with variable jump increase

Info

Publication number: CN219214978U
Application number: CN202223074448.7U
Authority: CN
Inventors: 刘佳奇; 徐勇; 乔敏; 王战友; 吕艳全; 姚亮
Original assignee: Jilin Dongguang Aowei Automobile Brake System Co Ltd
Current assignee: Jilin Dongguang Aowei Automobile Brake System Co Ltd
Priority date: 2022-11-21
Filing date: 2022-11-21
Publication date: 2023-06-20
Anticipated expiration: 2032-11-21

Abstract

The utility model relates to a 10-inch vacuum booster assembly with variable jump, and belongs to the technical field of automobile brake systems. The novel air lock comprises a front shell, a diaphragm, a booster disc, a rear shell, a valve body, a rear shell air seal, a control valve component, a locking plate, a dust cover, a feedback disc, a main cylinder push rod, a retainer, a return spring and a pressing block, wherein the dust cover is assembled on the rear shell air seal, the feedback disc, the main cylinder push rod, the retainer and the pressing block are assembled on the valve body, and the pressing block is provided with a circular ring structure on the end face. The advantage is novel structure, replaces the briquetting of fixed thickness with the briquetting of variable thickness to through the clearance between adjustment briquetting and the feedback dish, reach the purpose of adjustment increase and jump, make the product under the prerequisite of not changing spare part state, can satisfy customer's requirement, avoid a series of problems such as inventory, equipment, drawing, verification that produce because of changing increase and jump, improved product flexibility, fault-tolerant rate is high.

Description

10-inch vacuum booster assembly with variable jump increase

Technical Field

The utility model belongs to a vacuum booster assembly in the technical field of automobile brake systems, and particularly relates to a 10-inch vacuum booster assembly with variable jump-up.

Background

The conventional vacuum booster assembly for automobile braking is generally composed of a front shell, a rear shell, a diaphragm, a booster disc, a valve body, a rear shell air seal, a control valve component, a locking plate, a dust cover, a feedback disc, a main cylinder push rod, a retainer, a return spring and other main parts. When the conventional vacuum booster works, the diaphragm divides the vacuum booster into two cavities, the vacuum cavity and an atmosphere cavity, the control valve component and the valve body are driven to move by the input force of the brake pedal, the atmosphere cavity is filled with atmosphere, and the booster disc generates a booster effect under the action of atmospheric pressure.

Along with the development of the automobile industry, a variable jump-increasing structure is gradually applied to a vacuum booster assembly, the jump-increasing structure is characterized in that the jump-increasing is adjusted by adjusting the gap between a feedback disc and a pressing block through the thickness of the pressing block, the pressing block is an important component part of the vacuum booster assembly, the part is a part for connecting an input part and an output part, and the gap between the part and the feedback disc is used for adjusting the first air inflow of the vacuum booster, so that the purpose of adjusting the jump-increasing value is achieved. The vacuum booster assembly has the advantage of large adjustability; particularly, the cost can be saved in the sample stage, and the requirements of various jump increase of clients are met.

Generally, the jump of the vacuum booster assembly is a fixed value, the tolerance of the jump is +/-0.3 MPa, but because the jump is an important parameter of pedal feel in the whole vehicle braking, sometimes the jump designed cannot meet the requirements of customers, and the change of the jump is required to change the pressing block, a series of problems of stock, equipment, drawing, inspection and the like, which need to be changed, occur at the moment, the design cost of the product is increased, and the time waste of the design modification is caused.

Disclosure of Invention

The utility model provides a 10-inch vacuum booster assembly with variable jump to solve the problem that the design cost of a product is increased due to the change of jump, and the time is wasted in modifying the design.

The technical scheme adopted by the utility model is as follows: comprises a front shell, a diaphragm, a booster disc, a rear shell, a valve body, a rear shell air seal, a control valve component, a locking plate, a dust cover, a feedback disc, a main cylinder push rod, a retainer, a return spring and a pressing block, wherein the front shell is riveted with the rear shell, the rear shell is in air seal interference fit with the valve body through a rubber piece rear shell, the sealing effect is achieved, the booster disc is in riveting fit with the valve body, the diaphragm is in interference fit with the valve body, the control valve component is assembled with the valve body through locking plates in a clamping manner, one end of the return spring is assembled with the retainer, and the other end of the return spring is assembled with the front shell; the dust cover is assembled on the rear shell air seal, and the feedback disc, the main cylinder push rod, the guard ring and the pressing block are assembled on the valve body, and the pressing block is provided with a circular ring structure on the end face.

According to the utility model, the pressing block is made of steel materials, and the annular structure of the end face of the pressing block is in a stressed state, so that the residual materials can be accumulated outside and at the middle gap, the thickness of the pressing block is changed, and the purpose of adjusting the jump increase is achieved by adjusting the thickness of the pressing block and then adjusting the gap between the pressing block and the feedback disc.

The utility model has the advantages that the structure is novel, the pressing block with variable thickness is used for replacing the pressing block with fixed thickness, thus the jump is adjustable by adjusting the gap between the pressing block and the feedback disc, the purpose of adjusting the jump is achieved, the product can meet the requirements of customers on the premise of not changing the states of parts, the purpose of satisfying customers is achieved, a series of problems of stock, equipment, drawing, verification and the like caused by changing the jump are avoided, the problem that the jump value design of the traditional booster assembly cannot be changed is well solved, the problem of adjusting the jump to redesign the pressing block is avoided, the flexibility of the product is improved, and the utility model has the characteristics of quick effect, high fault tolerance and the like, and provides a new selection scheme for the development of the vacuum booster.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of the structure of the briquette of the present utility model;

FIG. 3 is a cross-sectional view A-A of FIG. 2;

FIG. 4 is a schematic view of the utility model when a briquette is subjected to a force;

FIG. 5 is a schematic view of the force direction of the briquette of the present utility model.

Detailed Description

Referring to fig. 1, the novel hydraulic pressure booster comprises a front shell 1, a diaphragm 2, a booster disc 3, a rear shell 4, a valve body 5, a rear shell air seal 6, a control valve component 7, a locking plate 8, a dust cover 9, a feedback disc 10, a main cylinder push rod 11, a retainer 12, a return spring 13 and a pressing block 14, wherein the front shell 1 is riveted with the rear shell 4, the rear shell 4 is in interference fit with the valve body 5 through the rubber rear shell air seal 6 to achieve a sealing effect, the booster disc 3 is in riveting fit with the valve body 5, the diaphragm 2 is in interference fit with the valve body 5, the control valve component 7 is assembled with the valve body 5 through locking plate 8 in a clamping manner, one end of the return spring 13 is assembled with the retainer, and the other end of the return spring 13 is assembled with the front shell 1; the dust cap 9 is mounted on the rear housing air seal 6, and the feedback disc 10, the main cylinder push rod 11, the retainer 12 and the pressing block 14 are mounted on the valve body 5, wherein the pressing block 14 has a circular ring structure 1401 on the end face.

According to the utility model, the pressing block 14 is made of steel materials, and the annular structure 1401 on the end face of the pressing block is stacked outside and at the middle gap under the stress state, so that the thickness of the pressing block is changed, and the purpose of adjusting the jump is achieved by adjusting the thickness of the pressing block and then adjusting the gap between the pressing block and the feedback disc.

Working principle:

when the vacuum booster works, the brake pedal pushes the control valve part 7 to drive the valve body 5 to advance, in the process, the atmospheric valve port is opened, air enters the atmospheric cavity of the vacuum booster, so that the vacuum cavity and the atmospheric cavity form a vacuum pressure difference, and the booster disc 3 is driven to play a boosting role; referring to fig. 2 and 3, the press block 14 is designed with a circular ring structure 1401 on the end face, and in the stressed state, the excess materials are accumulated outside and in the middle gap to change the thickness of the press block, so as to adjust the thickness of the press block, and further adjust the gap between the press block and the feedback disc, thereby achieving the purpose of adjusting jump increase; further, referring to fig. 4, a schematic diagram of the pressing block 14 is shown, and it can be seen that in the stressed state, the pressing block end is deformed, the entity height is lowered, and the remainder moves to the outside and inside gaps, referring to fig. 5, so as to achieve the purpose of changing the thickness of the pressing block.

Claims

1. The utility model provides a 10 inch vacuum booster assembly with variable increase jump, including the front housing, the diaphragm, the helping hand dish, the rear housing, the valve body, the backshell atmoseal, control valve part, the locking plate, the dust cover, the feedback dish, the master cylinder push rod, the protective shroud, return spring and briquetting, wherein the front housing rivets with the rear housing, rear housing and valve body pass through rubber spare backshell atmoseal interference fit, reach sealed effect, helping hand dish and valve body riveting fit, the diaphragm and valve body interference fit, assemble on helping hand dish, control valve part and valve body pass through locking plate joint assembly, return spring one end and protective shroud assembly, the other end and front housing assembly; the dust cover is assembled on the backshell air seal, its characterized in that: the feedback disc, the main cylinder push rod, the guard ring and the pressing block are assembled on the valve body, and the pressing block is provided with a circular ring structure on the end face.

2. A 10 inch vacuum booster assembly having variable jump as defined in claim 1, wherein: the briquetting adopts steel material, and the ring structure of its terminal surface can pile up outside and middle space department under the stress, makes briquetting thickness change, reaches through adjusting briquetting thickness, and then adjusts the clearance of briquetting and feedback dish, reaches the purpose that the adjustment increased the jump.