CN110949346A - 11+11 inch through type double-diaphragm vacuum booster assembly with ventilation structure - Google Patents
11+11 inch through type double-diaphragm vacuum booster assembly with ventilation structure Download PDFInfo
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- CN110949346A CN110949346A CN201911333306.8A CN201911333306A CN110949346A CN 110949346 A CN110949346 A CN 110949346A CN 201911333306 A CN201911333306 A CN 201911333306A CN 110949346 A CN110949346 A CN 110949346A
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- connecting pipe
- valve body
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- guide rod
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
- B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
- B60T13/24—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being gaseous
- B60T13/46—Vacuum systems
- B60T13/52—Vacuum systems indirect, i.e. vacuum booster units
- B60T13/56—Vacuum systems indirect, i.e. vacuum booster units with two-chamber booster units
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- Transportation (AREA)
- Mechanical Engineering (AREA)
- Braking Systems And Boosters (AREA)
Abstract
The invention relates to an 11+11 inch through type double-diaphragm vacuum booster assembly with a ventilation structure, and belongs to the field of automobile braking systems. The connecting pipe is riveted with the rear shell component, the connecting pipe is in threaded connection with the guide rod, a rigid air passage is arranged in the connecting pipe, two ends of the connecting pipe are communicated with two atmosphere cavities respectively, and the connecting pipe and the middle shell are in interference fit through the sealing sleeve. Has the advantages that: novel structure adopts the rigidity passageway of ventilating, connects two atmospheric chambers with two plastic connecting pipe covers on running through the pole, has avoidd the problem that flexible inlet channel warp in assembling process, and the safety and stability, the yield is high, improves the efficiency of admitting air, has guaranteed fine braking effect.
Description
Technical Field
The invention relates to the technical field of automobile braking systems, in particular to a vacuum booster assembly, and specifically relates to an 11+11 inch through type double-diaphragm vacuum booster assembly with a novel ventilation structure.
Background
The conventional double-diaphragm vacuum booster assembly for automobile braking comprises a front shell, a middle shell, a rear shell, a first diaphragm, a second diaphragm, a first boosting disc, a second boosting disc, a valve body, a guide rod, a sealing ring component, a control valve component, a locking plate, a dust cover, an adjusting fork, a pressing block, a feedback disc, a main cylinder push rod, a protection ring, a sealing sleeve, a return spring, a supporting pad, a sealing washer, an O-shaped sealing ring and other main parts. When the conventional double-diaphragm vacuum booster assembly works, the middle shell, the first diaphragm and the second diaphragm divide the double-diaphragm booster into four cavities, the two vacuum cavities and the two atmosphere cavities are arranged at intervals, a control valve component and a valve body are driven to move through input force of a brake pedal, the atmosphere cavities are communicated with atmosphere, and the first power-assisted disc and the second power-assisted disc are acted by atmospheric pressure to generate a power-assisted effect.
With the development of the automobile industry, large-sized passenger cars gradually enter daily life, the braking effect of a braking system is gradually improved, and the demand for large-sized vacuum boosters is increasing day by day. Because the product size is too big, the big atmospheric cavity grow, and efficiency of admitting air and air intake speed have gradually become the main problem that influences quick braking.
The ventilation channel is a channel which is connected with the outside and the atmosphere cavity on the vacuum booster, and is opened and closed under the action of the control valve, so that air can enter the atmosphere cavity, and the boosting effect is further realized. In two diaphragm run-through vacuum booster designs in the past, the passageway of ventilating is generally put on first diaphragm and second diaphragm, encloses into the passageway of ventilating through two diaphragms and casing, and this kind of passageway of ventilating because there is the deformation in rubber spare in the assembling process for air passage diminishes, and the efficiency of ventilating obviously descends on the major diameter booster, when leading to the booster to step on soon, admits air untimely, and output can't reach the target value fast, makes braking effect descend.
Disclosure of Invention
The invention provides an 11+11 inch through type double-diaphragm vacuum booster assembly with a ventilation structure, which aims to solve the problem of air intake efficiency reduction caused by a flexible air intake channel.
The technical scheme includes that a front shell is riveted with a rear shell, the rear shell and a valve body are in interference fit through rubber to form a sealed shell, a first power-assisted disc and a second power-assisted disc are in riveting fit with the valve body, a control valve component and the valve body are assembled through locking pieces in a clamping manner, a feedback disc, a main cylinder push rod, a pressing block and a return spring are assembled on the valve body, a dust cover is assembled on the rear shell, a second membrane is clamped through a hole in the second power-assisted disc, a first membrane is clamped through a hole in the first power-assisted disc, an adjusting fork is installed on the control valve component through threaded connection, a supporting pad is assembled on a guide rod, a push rod head is installed with the main cylinder push rod in interference fit, one end of the return spring is assembled on the valve body, the other end; the guide rod is riveted with the rear shell component, the connecting pipe is connected with the guide rod through threads, a rigid air passage is arranged in the connecting pipe, two ends of the connecting pipe are respectively communicated with the two atmospheric cavities, and the connecting pipe is in interference fit with the middle shell through a sealing sleeve;
the connecting pipe is a plastic pipe;
and the tail part thread of the connecting pipe is in threaded connection with the tail part thread of the guide rod.
The invention has the advantages that: novel structure adopts the rigidity passageway of ventilating, connects two atmospheric chambers with two plastic connecting pipe covers on running through the pole, has avoidd the problem that flexible inlet channel warp in assembling process, and the safety and stability, the yield is high, improves the efficiency of admitting air, has guaranteed fine braking effect.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the structure of the connecting tube of the present invention;
FIG. 3 is a schematic view of the construction of the guide bar of the present invention;
in the figure, a front shell 1, a second diaphragm 2, a second booster disk 3, a middle shell 4, a first diaphragm 5, a rear shell component 6, a first booster disk 7, a valve body 8, a pressing block 9, a control valve component 10, a dust cover 11, an adjusting fork 12, a locking plate 13, a guide rod 14, a connecting pipe 15, a sealing sleeve 16, a supporting pad 17, a feedback disk 18, a main cylinder push rod 19, a push rod head 20, a return spring 21, a joint seat 22, a connecting pipe thread 1501 and a guide rod thread 1401 are arranged.
Detailed Description
The front shell body 1 is riveted with the rear shell body 6, the rear shell body 6 and the valve body 8 are in interference fit through rubber to form a sealed shell, the first power-assisted disc 7 and the second power-assisted disc 3 are in interference fit with the valve body 8, the control valve part 10 and the valve body 8 are assembled in a clamping mode through a locking plate 13, the feedback disc 18, the main cylinder push rod 19, the pressing block 9 and the return spring 21 are assembled on the valve body 8, the dust cover 11 is assembled on the rear shell body 6, the second diaphragm 2 is clamped through a hole in the second power-assisted disc 3, the first diaphragm 5 is clamped through a hole in the first power-assisted disc 7, the adjusting fork 12 is installed on the control valve part 10 through threaded connection, the supporting pad 17 is assembled on the guide rod 14, the push rod head 20 and the main cylinder push rod 19 are installed in interference fit, one end of the return spring 21 is assembled on the valve body; the guide rod 14 is riveted with the rear shell component 6, a connecting pipe 15 is connected with the guide rod 14 through threads, a rigid air flue is arranged in the connecting pipe 15, two ends of the connecting pipe are respectively communicated with the two atmospheric cavities, and the connecting pipe 15 is in interference fit with the middle shell 4 through a sealing sleeve 16;
the connecting pipe 15 is a plastic pipe;
the tail thread 1501 of the connecting pipe 15 is in threaded connection with the tail thread 1401 of the guide rod 14.
When the valve body 8 is driven to move forward by pushing the control valve component by the brake pedal, in the process, the atmospheric valve port is opened, air enters the right atmospheric cavity inside the vacuum booster and enters the left atmospheric cavity by the rigid air passage inside the connecting pipe 15, vacuum pressure difference is formed between the vacuum cavity and the atmospheric cavity, and then the first power-assisted disc and the second power-assisted disc are driven to play a power-assisted role.
Claims (3)
1. A11 +11 inch through type double-diaphragm vacuum booster assembly with a ventilation structure is characterized in that a front shell is riveted with a rear shell component, the rear shell component and a valve body are in interference fit through rubber to form a sealing shell, a first booster disc and a second booster disc are in riveting fit with the valve body, a control valve component is assembled with the valve body through locking pieces in a clamping mode, a feedback disc, a main cylinder push rod, a pressing block and a return spring are assembled on the valve body, a dust cover is assembled on the rear shell component, a second diaphragm is clamped through a hole in the second booster disc, the first diaphragm is clamped through a hole in the first booster disc, an adjusting fork is installed on the control valve component through threaded connection, a supporting pad is assembled on a guide rod, a push rod head is installed with the main cylinder push rod in an interference fit mode, one end of the return spring is assembled on the valve body; the method is characterized in that: the guide rod is riveted with the rear shell component, the connecting pipe is in threaded connection with the guide rod, a rigid air passage is arranged in the connecting pipe, two ends of the connecting pipe are respectively communicated with the two atmosphere cavities, and the connecting pipe is in interference fit with the middle shell through a sealing sleeve.
2. A 11+11 inch through dual diaphragm vacuum booster assembly with venting structure as set forth in claim 1 wherein: the connecting pipe is a plastic pipe.
3. A 11+11 inch through dual diaphragm vacuum booster assembly with venting structure as set forth in claim 1 or 2 wherein: and the tail part thread of the connecting pipe is in threaded connection with the tail part thread of the guide rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911333306.8A CN110949346A (en) | 2019-12-23 | 2019-12-23 | 11+11 inch through type double-diaphragm vacuum booster assembly with ventilation structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911333306.8A CN110949346A (en) | 2019-12-23 | 2019-12-23 | 11+11 inch through type double-diaphragm vacuum booster assembly with ventilation structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110949346A true CN110949346A (en) | 2020-04-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911333306.8A Pending CN110949346A (en) | 2019-12-23 | 2019-12-23 | 11+11 inch through type double-diaphragm vacuum booster assembly with ventilation structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110949346A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113212404A (en) * | 2021-05-28 | 2021-08-06 | 东风汽车集团股份有限公司 | Through bolt formula intelligence booster structure |
| CN114506305A (en) * | 2022-03-03 | 2022-05-17 | 浙江万向系统有限公司 | Vacuum booster assembly |
-
2019
- 2019-12-23 CN CN201911333306.8A patent/CN110949346A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113212404A (en) * | 2021-05-28 | 2021-08-06 | 东风汽车集团股份有限公司 | Through bolt formula intelligence booster structure |
| CN114506305A (en) * | 2022-03-03 | 2022-05-17 | 浙江万向系统有限公司 | Vacuum booster assembly |
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