CN201882070U - Vacuum booster with adjustable jump value - Google Patents
Vacuum booster with adjustable jump value Download PDFInfo
- Publication number
- CN201882070U CN201882070U CN2010205897646U CN201020589764U CN201882070U CN 201882070 U CN201882070 U CN 201882070U CN 2010205897646 U CN2010205897646 U CN 2010205897646U CN 201020589764 U CN201020589764 U CN 201020589764U CN 201882070 U CN201882070 U CN 201882070U
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- CN
- China
- Prior art keywords
- vacuum booster
- air valve
- setting nut
- jump value
- valve rod
- 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 relates to an automobile brake aid, in particular to a vacuum booster with adjustable jump value, which comprises an air valve post, a feedback plate, an input force push rod and a piston. The piston is connected with the feedback plate, the air valve post is arranged inside the piston, and one end of the input force push rod is arranged inside the air valve post. The vacuum booster is characterized in that a cylindrical adjusting nut is arranged at an input end of the air valve post, the adjusting nut is connected with the air valve post in a threaded manner, at least one limit projection is disposed on the cylindrical face of the adjusting nut and positioned in an axial direction of the adjusting nut, and grooves matched with the limit projections are arranged on the piston. The vacuum booster has the advantages that the vacuum booster is convenient in use, easy in batch production and low in cost, the jump valve of the vacuum booster can be changed according to personal needs at any time, and the like.
Description
Technical field
The utility model relates to a kind of braking automobile auxiliary device, especially relates to a kind of vacuum booster of adjustable jump value.
Background technology
Vacuum booster is as the brake auxiliary device, and it has low cost of manufacture, long service life, and fuel oil consumption seldom waits advantage, thereby is used widely.The control mechanism of vacuum booster directly is connected with brake pedal, and its effect is to utilize the vacuum of engine intake manifold or vacuum pump to be power, makes chaufeur with lighter treadle effort, obtains higher braking force, thereby alleviates the working strength of chaufeur.The jump value that choker relief valve styletable face in the vacuum booster and the distance between the reaction plate end face are called vacuum booster, the jump value of vacuum booster influences the reaction sensitivity of automobile brake perfrmance and handles portability, the jump value is big more, and the vacuum booster reaction is sensitive more; The jump value is more little, and the vacuum booster reaction is blunt more.After existing Automobile manufacturing dispatched from the factory, the jump value of vacuum booster mostly was unmodifiable, but different people is different to the reaction sensitivity of same car braking and the requirement of manipulation portability.Same car may be that the male sex opens, also may be that women or old man open, and women and old man are more less better than the male sex aspect muscle power and speed of response, thereby same car be at glancing impact, it is blunt that some people can feel to brake, and some people can think that reaction is too sensitive, bad controlling.
As notification number be: a kind of vacuum booster of CN201136493Y, comprise control cock, the rear housing assembly of captiveing joint, the front case assembly of captiveing joint with the rear housing assembly with control cock, be provided with between described rear housing assembly and the control valve body and be used for leak free rear housing sealing gland, be provided with back envelope elasticity trim ring in the described rear housing assembly, described back envelope elasticity trim ring and rear housing assembly interference fit also compresses the rear housing sealing gland.This patent still exists the jump of vacuum booster to be worth unmodifiable problem, if the jump value of this vacuum booster at male sex's exploitation, can feel to brake blunt and effort when women or old man brake so; If the jump value of this vacuum booster, can be felt when the male sex brakes so that reaction is too sensitive at women or old man's exploitation and is difficult to control.
Summary of the invention
The utility model mainly is that existing jump is worth unmodifiable problem at existing vacuum booster, and a kind of vacuum booster that can change the jump value according to individual demand at any time is provided.
Above-mentioned technical matters of the present utility model is mainly solved by following technical proposals: a kind of vacuum booster of adjustable jump value, comprise the air valve rod, reaction plate, input force push rod and piston body, described piston body is connected with reaction plate, described air valve rod is positioned at piston body, one end of described input force push rod is positioned at the air valve rod, the mouth of described air valve rod is provided with setting nut, described setting nut is a cylinder, described setting nut is connected with the choker relief valve male screw, the face of cylinder of described setting nut is provided with at least one spacing preiection, described spacing preiection is positioned on the axial direction of setting nut, and described piston body is provided with the groove that matches with described spacing preiection.The utility model increases a setting nut at the mouth of air valve rod, this setting nut is connected with the choker relief valve male screw, spacing preiection is arranged on the setting nut, groove sliding block joint on spacing preiection and the piston body, groove on the piston body plays position-limiting action to spacing preiection, limited the rotary freedom of setting nut, setting nut can only move axially in the groove on piston body.Make the rotation of input force push rod by external force, drive the rotation of air valve rod, the rotation of air valve rod drives setting nut and moves axially, therefore by rotating the input force push rod, can adjust the mouth of setting nut and the distance between the reaction plate, promptly can adjust the jump value of this vacuum booster, the jump value is big more, the sensitivity of vacuum booster is strong more, the brake system of car reaction is sensitive more, thereby reach the sensitivity of adjusting whole brake system, with the driver that adapts to different muscle power and speed of response requirement to the brake system sensitivity.
As preferably, pass through locating dowel pin captive joint radially between described air valve rod and the input force push rod, described locating dowel pin end is provided with snap ring.Air valve rod and input force push rod in the existing vacuum booster adopt riveted joint mostly, because riveted joint is the metal plastic deformation process, easily rivet are fractureed, and cause product reject rate height, need riveting equipment simultaneously, additive incrementation man-hour and cost.The riveted joint that the utility model uses locating dowel pin and snap ring to come replaces air valve rod and input force push rod, only need make locating dowel pin pass air valve rod and the cooresponding knock hole of input force push rod, re-using snap ring chucking locating dowel pin gets final product, simple in structure, easy to use, man-hour has been saved in the cost waste that has caused when having avoided using riveted joint.
As preferably, the screw thread of setting nut is a fine thread.Fine thread pitch is little, and self-locking performance is better, and when the moving setting nut of air valve rod rotating band moved axially, mobile distance was little, and the miles of relative movement of easier accuracy control setting nut is promptly controlled the jump value.The fine thread self-locking performance is good, and setting nut is not easy to rotate because of small external force interference.
As preferably, described spacing preiection has two, and described two spacing preiections evenly are arranged on the face of cylinder of setting nut.Two spacing preiections evenly are arranged on the face of cylinder of setting nut, the groove sliding block joint on spacing preiection and the piston body, and it is more stable to guarantee that setting nut moves axially.
As preferably, an end of described setting nut is an osed top.The mouth of setting nut is osed top one end, has increased the area of thrust surface of setting nut promotion reaction plate, and is stressed more even.
As preferably, described spacing preiection is an in-line.Make simple, simple in structure.
Therefore, the utlity model has easy to use, easy realization production in enormous quantities, cost is low, can change advantages such as vacuum booster jump value according to individual demand at any time.
Description of drawings
Accompanying drawing 1 is a kind of structural representation of the present utility model;
Accompanying drawing 2 is the partial enlarged drawings at A place in the accompanying drawing 1;
Accompanying drawing 3 is section-drawings of setting nut;
Accompanying drawing 4 is scheme drawings of the groove sliding block joint of the spacing preiection of setting nut and piston body.
Shown in the figure: 1-air valve rod, 2-reaction plate, 3-input force push rod, 4-piston body, 5-setting nut, 6-spacing preiection, 7-groove, 8-locating dowel pin, 9-snap ring.
The specific embodiment
Below by embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment 1:
As Figure of description 1,2, shown in 4, a kind of vacuum booster of adjustable jump value, comprise air valve rod 1, reaction plate 2, input force push rod 3 and piston body 4, piston body is connected with reaction plate, the air valve rod is positioned at piston body, one end of input force push rod is positioned at the air valve rod, the mouth of air valve rod is provided with setting nut 5, setting nut is the hollow cylinder of an end opening, setting nut is connected with the choker relief valve male screw, the screw thread of setting nut is a fine thread, the face of cylinder of setting nut is provided with two in-line spacing preiections 6, two spacing preiections evenly are arranged on the face of cylinder of setting nut, spacing preiection is positioned on the axial direction of setting nut, piston body is provided with the groove 7 that matches with spacing preiection, the end that is positioned at the input force push rod of air valve rod is provided with the knock hole I, the air valve rod is provided with the knock hole II consistent with the knock hole I, the air valve rod is connected by locating dowel pin 8 with the input force push rod, and with snap ring 9 chucking locating dowel pins, locating dowel pin passes knock hole I and knock hole II simultaneously.
Vacuum booster is this principle of aspirated air when utilizing engine operation, causes a side vacuum of servo-unit, with respect to the difference of pressure of opposite side normal air pressure, utilizes this difference of pressure to strengthen retrothrust.Jump value in the utility model is the mouth of setting nut and the distance between the reaction plate, size B as shown in Figure 2.When adjusting the jump value of vacuum booster, rotate the input force push rod by hand, drive the rotation of air valve rod, the rotation of air valve rod drives setting nut and moves axially, can adjust the mouth of setting nut and the distance between the reaction plate, reach the effect that changes the jump value size of adjusting this vacuum booster.If will increase the jump value, rotation input force push rod makes setting nut move to the direction away from reaction plate; If will increase the jump value, rotation input force push rod makes setting nut move toward the direction near reaction plate.Can need change the size of vacuum booster jump value according to the driver, thereby adjust the sensitivity of brake system, satisfy diversified demand the brake system sensitivity.Vacuum booster jump value is big more, and the vacuum booster sensitivity is strong more, and the brake system of car reaction is just sensitive more.Automobile in use, the being quick on the draw property of brake system can reduce gradually, can regulate the jump value of vacuum booster, thereby regulate the sensitieness of brake system by using the method.
Claims (6)
1. the vacuum booster of an adjustable jump value, comprise air valve rod (1), reaction plate (2), input force push rod (3) and piston body (4), described piston body is connected with reaction plate, described air valve rod is positioned at piston body, one end of described input force push rod is positioned at the air valve rod, the mouth that it is characterized in that described air valve rod is provided with setting nut (5), described setting nut is a cylinder, described setting nut is connected with the choker relief valve male screw, the face of cylinder of described setting nut is provided with at least one spacing preiection (6), described spacing preiection is positioned on the axial direction of setting nut, and described piston body is provided with the groove (7) that matches with described spacing preiection.
2. the vacuum booster of adjustable jump value according to claim 1 is characterized in that between described air valve rod and the input force push rod locating dowel pin (8) captive joint by radially, and described locating dowel pin end is provided with snap ring (9).
3. the vacuum booster of adjustable jump value according to claim 1 and 2, the screw thread that it is characterized in that setting nut is a fine thread.
4. the vacuum booster of adjustable jump value according to claim 1 and 2 is characterized in that described spacing preiection has two, and described two spacing preiections evenly are arranged on the face of cylinder of setting nut.
5. the vacuum booster of adjustable jump value according to claim 1 and 2 is characterized in that an end of described setting nut is an osed top.
6. the vacuum booster of adjustable jump value according to claim 1 and 2 is characterized in that described spacing preiection is an in-line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205897646U CN201882070U (en) | 2010-11-04 | 2010-11-04 | Vacuum booster with adjustable jump value |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205897646U CN201882070U (en) | 2010-11-04 | 2010-11-04 | Vacuum booster with adjustable jump value |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201882070U true CN201882070U (en) | 2011-06-29 |
Family
ID=44179608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205897646U Expired - Lifetime CN201882070U (en) | 2010-11-04 | 2010-11-04 | Vacuum booster with adjustable jump value |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201882070U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106476774A (en) * | 2016-11-02 | 2017-03-08 | 彭伟桓 | A kind of automobile brake general pump of scalable sensitivity |
-
2010
- 2010-11-04 CN CN2010205897646U patent/CN201882070U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106476774A (en) * | 2016-11-02 | 2017-03-08 | 彭伟桓 | A kind of automobile brake general pump of scalable sensitivity |
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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: 20110629 |
|
| CX01 | Expiry of patent term |