CN202213577U - Vacuum booster - Google Patents
Vacuum booster Download PDFInfo
- Publication number
- CN202213577U CN202213577U CN201120318423XU CN201120318423U CN202213577U CN 202213577 U CN202213577 U CN 202213577U CN 201120318423X U CN201120318423X U CN 201120318423XU CN 201120318423 U CN201120318423 U CN 201120318423U CN 202213577 U CN202213577 U CN 202213577U
- Authority
- CN
- China
- Prior art keywords
- vacuum booster
- round plate
- push rod
- piston
- input push
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Braking Systems And Boosters (AREA)
Abstract
The utility model provides a vacuum booster which comprises a shell and a piston plate body arranged in the shell, wherein the piston plate comprises a piston part and a disc part which are integrally formed. The vacuum booster has a simple structure, is convenient to manufacture and saves cost.
Description
Technical field
The utility model relates to a kind of vacuum booster.
Background technology
Vacuum booster is the vitals in the brake system of car, and when navigating mate was trampled brake pedal, vacuum booster can provide resistance, not only can alleviate the burden of navigating mate, also can improve traveling security.Vacuum booster comprises membranous disc and piston body; Captive joint and junction need sealing between membranous disc and the piston body, and in order to guarantee leak tightness, the installation connection mode between membranous disc and the piston body has multiple; The employing interference fit that has, what have is provided with seal ring etc. between the two.But, no matter adopting which kind of mounting means, the manufacturing of membranous disc, piston body and the assembly technology between the two are all complicated, waste time and energy.
The utility model content
The utility model is all complicated for the manufacturing and the assembly technology between the two that solve above-mentioned membranous disc, piston body, and the problem that wastes time and energy provides a kind of vacuum booster, and this vacuum booster is simple in structure, and is easily manufactured, saves cost.
The vacuum booster of the utility model comprises: housing and the piston disk body that is arranged in the housing, said piston disk body comprises integrated piston portion and round plate.
Further, said round plate is provided with a plurality of reinforcement gussets that extend along the radiation radially outward of round plate.
Further, said round plate is provided with the deflation hole of a plurality of perforations.
Further, said vacuum booster also comprises epithelium, and said epithelium is fitted on the round plate, and the edge, surrounding of epithelium is connected with housing seal.
Further; Said piston portion becomes jatharapanvartanasana; Said vacuum booster also comprises control cock, air valve rod and input push rod, and control cock, air valve rod and input push rod are arranged in the piston portion, air valve rod and input push rod axially arranging according to this from left to right along piston portion; The air valve rod is captiveed joint through riveted with the input push rod, and control cock is set on the input push rod.
The beneficial effect of the utility model is: be provided with the piston disk body in the utility model, the piston disk body can replace membranous disc and the piston body in the existing vacuum booster, because the piston disk body is a part; Therefore processing and manufacturing is easy; And assembling is not time saving and energy saving, provides cost savings.
Description of drawings
Fig. 1 is the sectional structure scheme drawing of the vacuum booster of a kind of embodiment of the utility model;
Fig. 2 is the structural representation of piston disk body in the vacuum booster of a kind of embodiment of the utility model.
The specific embodiment
Clearer for technical matters, technical scheme and beneficial effect that the utility model is solved, below in conjunction with accompanying drawing and embodiment, the utility model is further elaborated.Should be appreciated that the specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
As depicted in figs. 1 and 2, the vacuum booster of a kind of embodiment of the utility model comprises: piston disk body 1, control cock 2, locking plate 3, fore shell 4, epithelium 5, output push rod 6, pull back spring 7, back cover 8, reaction plate 9, air valve rod 10 and input push rod 11.Said piston disk body 1 comprises the piston portion 101 and round plate 102 of jatharapanvartanasana.
Left and right described in this embodiment all is as the criterion with orientation shown in Figure 1.The definition of jatharapanvartanasana please refer to pertinent literature, repeats no more here.
Fore shell 4 is mutually permanently connected with back cover 8, forms described housing.
Reaction plate 9 is arranged on the center of round plate 102; Control cock 2, air valve rod 10 and input push rod 11 are arranged in the piston portion 101; Reaction plate 9, air valve rod 10 and input push rod 11 axially arranging according to this from left to right along piston portion 101; Air valve rod 10 is captiveed joint through riveted with input push rod 11, and control cock 2 is set in to be imported on the push rod 11.
Epithelium 5 is fitted on the round plate 102, preferably carries out bondingly between the two, and as bonding etc. with viscose glue, bonding making fitted better between epithelium 5 and the round plate 102.The edge, surrounding of epithelium 5 is connected with housing seal, and the concrete mode of being tightly connected repeats no more.Epithelium 5 is separated into two chambers with piston disk body 1 with said housing, is respectively the vacuum chamber 14 on the left side and the epitrochoidal chamber 15 on the right.
Vacuum chamber 14 all is communicated with the induction maniflod of driving engine with epitrochoidal chamber 15, and when engine operation but brake pedal when not being operated, vacuum chamber 14 and epitrochoidal chamber 15 all are pumped into the partial vacuum.When the vehicular drive personnel stepped on brake pedal, input push rod 11 was to left movement, and input push rod 11 drives air valve rod 10 to left movement; Communication paths between epitrochoidal chamber 15 and the said induction maniflod is cut off; Communication paths between epitrochoidal chamber 15 and the extraneous air is opened, so air outside enters into epitrochoidal chamber 15, because still partial vacuum states in the vacuum chamber 14; Therefore the air pressure in the epitrochoidal chamber 15 is greater than the air pressure in the vacuum chamber 14; Have pressure reduction between epitrochoidal chamber 15 and the vacuum chamber 14, said pressure reduction promotes piston disk body 1 to left movement, the power-assisted effect of Here it is this vacuum booster.When vehicular drive personnel loosen the brake, the course of action of each parts and above-mentioned opposite.
Preferably; Said round plate 102 is provided with a plurality of reinforcement gussets 103 that extend along the radiation radially outward of round plate 102; A plurality of reinforcement gussets 103 are positioned on the surface of epithelium dorsad 5 of round plate 102, and each strengthens the gyratory directions rectangular distribution of gusset 103 along round plate 102.The effect of strengthening gusset 103 is the intensity that strengthens round plate 102, makes round plate 102 not yielding under above-mentioned pressure differential effect.
Preferably, said round plate 102 is provided with the deflation hole 104 of a plurality of perforations, and deflation hole 104 staggers with said reinforcement gusset 103 each other, and promptly each deflation hole 104 is not arranged on and strengthens on the gusset 103.The effect that deflation hole 104 is set is the air exhaustion that makes things convenient between round plate 102 and the epithelium 5, in order to avoid influence the power-assisted effect of this vacuum booster.
The vacuum booster of this embodiment replaces membranous disc and piston body in the existing vacuum booster through piston disk body 1 is set, and simplifies the structure, and has made things convenient for the manufacturing and the assembling of whole vacuum booster.In addition, in the existing vacuum booster, the junction of membranous disc and piston body need seal; If seal badly, will influence the power-assisted effect of whole vacuum booster, and then influence the braking effect of vehicle; In this embodiment; Owing to piston disk body 1 is a single part, there is not sealing problem, the bad problem of power-assisted effect with regard to not causing because of sealing yet.
Piston disk body 1 can select for use various materials to make, and like metal, plastics etc., preferably, piston disk body 1 usefulness resin material forms through injection mo(u)lding.
The above is merely the preferred embodiments of the utility model; Not in order to restriction the utility model; Any modification of being done within all spirit and principles at the utility model, be equal to replacement and improvement etc., all should be included within the protection domain of the utility model.
Claims (5)
1. a vacuum booster is characterized in that, comprising: housing and the piston disk body (1) that is arranged in the housing, said piston disk body (1) comprises integrated piston portion (101) and round plate (102).
2. vacuum booster as claimed in claim 1 is characterized in that, said round plate (102) is provided with a plurality of reinforcement gussets (103) that extend along the radiation radially outward of round plate (102).
3. vacuum booster as claimed in claim 1 is characterized in that, said round plate (102) is provided with the deflation hole (104) of a plurality of perforations.
4. vacuum booster as claimed in claim 1 is characterized in that, said vacuum booster also comprises epithelium (5), and said epithelium (5) is fitted on the round plate (102), and the edge, surrounding of epithelium (5) is connected with housing seal.
5. vacuum booster as claimed in claim 1; It is characterized in that; Said piston portion (101) becomes jatharapanvartanasana; Said vacuum booster also comprises control cock (2), air valve rod (10) and input push rod (11), and control cock (2), air valve rod (10) and input push rod (11) are arranged in the piston portion (101), and air valve rod (10) and input push rod (11) are axially arranged along piston portion (101) from left to right according to this; Air valve rod (10) is captiveed joint through riveted with input push rod (11), and control cock (2) is set on the input push rod (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120318423XU CN202213577U (en) | 2011-08-29 | 2011-08-29 | Vacuum booster |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120318423XU CN202213577U (en) | 2011-08-29 | 2011-08-29 | Vacuum booster |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202213577U true CN202213577U (en) | 2012-05-09 |
Family
ID=46012845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120318423XU Expired - Lifetime CN202213577U (en) | 2011-08-29 | 2011-08-29 | Vacuum booster |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202213577U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109808664A (en) * | 2017-11-21 | 2019-05-28 | 大陆-特韦斯贸易合伙股份公司及两合公司 | For amplify input power have by the equipment of the compression bar of axial grip |
-
2011
- 2011-08-29 CN CN201120318423XU patent/CN202213577U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109808664A (en) * | 2017-11-21 | 2019-05-28 | 大陆-特韦斯贸易合伙股份公司及两合公司 | For amplify input power have by the equipment of the compression bar of axial grip |
| CN109808664B (en) * | 2017-11-21 | 2022-06-28 | 大陆-特韦斯贸易合伙股份公司及两合公司 | Device for amplifying an input force with an axially clamped pressure rod |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120509 |
|
| CX01 | Expiry of patent term |