CN203601254U - Automobile vacuum booster - Google Patents
Automobile vacuum booster Download PDFInfo
- Publication number
- CN203601254U CN203601254U CN201320826525.1U CN201320826525U CN203601254U CN 203601254 U CN203601254 U CN 203601254U CN 201320826525 U CN201320826525 U CN 201320826525U CN 203601254 U CN203601254 U CN 203601254U
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- hole
- vacuum booster
- front case
- tapped bore
- push rod
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Abstract
The utility model provides an automobile vacuum booster, and belongs to the technical field of automobiles. The automobile vacuum booster solves the technical problem that a front shell and a rear shell of an existing automobile vacuum booster can be easily installed reversely. The automobile vacuum booster comprises a front shell and a rear shell, wherein two first threaded holes are formed in the front shell, two second threaded holes are formed in the rear shell and correspond to the first threaded holes, a threaded rod is inserted into each first threaded hole and the second threaded hole corresponding to the first threaded hole at the same time, an arc-shaped insertion groove is formed in the inner side face of the front shell, and an arc-shaped protrusion is arranged on the inner side face of the rear shell and can be inserted into the arc-shaped insertion groove. According to the automobile vacuum booster, the phenomenon that the front shell and the rear shell of the automobile vacuum booster are installed reversely can be effectively avoided.
Description
Technical field
The utility model belongs to automobile technical field, relates to a kind of automobile vacuum booster.
Background technology
Automobile vacuum booster has been widely used on all kinds of cars and lorry, and the mouth of vacuum booster for vehicle brake is connected with hydraulic brake master, and control end is connected with brake pedal by leverage, and low pressure chamber is connected with driving engine by flexible pipe.The negative pressure producing when vacuum booster utilizes engine cylinder air-breathing as propulsion source and work done, can make chaufeur obtain higher braking oil pressure with less treadle effort, thereby make brake operation lighter, brakes more reliable.
China patent CN 2778628Y is public a kind of vacuum booster for automobile brakes, comprise reaction plate, master cylinder push rod, pull back spring, front case, piston plate, diaphragm, rear housing, push rod, between described front case, piston plate, diaphragm, rear housing, run through screw rod is set.This vacuum booster can reduce the distortion that forward and backward housing produces.
But, from above-mentioned patent, can find out, two screw rods are symmetrical in the time of assembling, therefore, operating personal, in the time of assembling front case and rear housing, there will be the situation of anti-dress, be the relative rear housing of front case depart from 180 ° of installation sites, thereby affect the efficiency of assembling of vacuum booster.
Summary of the invention
The utility model is the problems referred to above that exist for existing technology, and a kind of automobile vacuum booster is provided, and technical problem to be solved in the utility model is: the problem that occurs anti-dress while how avoiding front case and rear housing assembling.
The purpose of this utility model can realize by following technical proposal: a kind of automobile vacuum booster, described vacuum booster comprises front case and rear housing, on described front case, offer two the first tapped bore, on described rear housing, offer two second tapped bore corresponding with described the first tapped bore, described the first tapped bore is plugged with a screw rod with in the second tapped bore corresponding with this first tapped bore simultaneously; It is characterized in that, the medial surface of described front case is provided with a slot that is arcuation, and the medial surface of described rear housing is provided with an arcuation projection that can be plugged in described slot.
Its principle of work is as follows: the front case of this vacuum booster and rear housing are in the time of assembling, can first the arcuation projection on rear housing be plugged in the slot on front case, now front case and rear housing are just in installation site, and then screw rod is plugged in the first tapped bore and the second tapped bore, can effectively avoid front case and rear housing is counter fills, improve the efficiency of assembling of vacuum booster.
In above-mentioned a kind of automobile vacuum booster, the lateral surface of described rear housing is installed with a projection, on described projection, be arranged with one and be foursquare shock pad, the four edges edge of described shock pad is vertically installed with respectively side plate, on the plate face of described side plate, offers bolt hole.Be designed with after shock pad, can make rear housing and auto body separate, effectively reduce noise, improve the traveling comfort of automobile; Be designed with the side plate vertical with shock pad, design bolt hole on side plate, this bolt hole is for fixing with automobile radiation, and the reason of design side plate is to make the direction of bolt hole to arrange perpendicular to the axis of rear housing outwardly, and handled easily person turn.
In above-mentioned a kind of automobile vacuum booster, on described front case, be also provided with vacuum check valve, in described rear housing, control cock is installed, in described control cock, be plugged with servo-unit push rod, the inner of described servo-unit push rod is installed with choker relief valve; Described vacuum booster also comprises epithelium, described epithelium and described rear housing form a vacuum chamber, described epithelium and front case composition power-assisted chamber, described epithelium is installed on diaphragm seat, on described diaphragm seat, master cylinder push rod is installed, described master cylinder push rod is positioned at described front case, between described master cylinder push rod and described choker relief valve, counter-force dish is installed, the center of described front case outer end is fixed with the rubber jacking block coaxial with described master cylinder push rod, described rubber jacking block is in the form of annular discs, between described rubber jacking block and described master cylinder push rod, has brake cabin distance; Described vacuum booster also comprises a reaction plate, on described reaction plate, offer several the first through holes, on described rubber jacking block, offer several second through holes corresponding with described the first through hole, the outer end place of described front case also offers three tapped bore corresponding with described the second through hole, described the 3rd tapped bore, second through hole corresponding with the 3rd tapped bore and with the first corresponding through hole of this second through hole in be plugged with a bolt simultaneously; On described reaction plate, also offer a central through hole, described central through hole and described master cylinder push rod coaxially arrange, the piston outer end of automobile main cylinder is plugged in described central through hole, and the middle part of described rubber jacking block can extend in described central through hole and the piston of propelling vehicle master cylinder by elastic deformation.Braking principle and the documents of this vacuum booster are similar, drive master cylinder push rod to move by servo-unit push rod, and rubber jacking block is deformed, thus the piston of propelling vehicle master cylinder; Rubber jacking block is secured by bolts on front case, and its connective stability is not affected by dust, oil stain etc. can, effectively guarantees the operation stability of rubber jacking block, guarantees the degree of vacuum in vacuum booster.
In above-mentioned a kind of automobile vacuum booster, described vacuum booster also comprises a guide cylinder, the inner of described guide cylinder is fixed in the outer card of described reaction plate, in described guide cylinder, offer the connecting bore being connected with described central through hole, the junction of described connecting bore and described central through hole is one to be the guide part of arcuation.Be designed with after guide cylinder, its object is to control the direction of rubber jacking block distortion, it is matched with master cylinder piston better, and the junction of connecting bore and central through hole is designed to the guide part of an arcuation, its object is the wearing and tearing that the hole wall of central through hole and connecting bore causes rubber jacking block when reducing rubber jacking block generation deformation, the service life of improving rubber jacking block.
In above-mentioned a kind of automobile vacuum booster, described guide cylinder and described reaction plate are the integral structure that adopts injection mo(u)lding.Guide cylinder and reaction plate are designed to integral structure, have both guaranteed Joint strenght between the two, improved again efficiency of assembling.
Compared with prior art, the utlity model has following advantage:
1, the front case of this vacuum booster and rear housing are in the time of assembling, can first the arcuation projection on rear housing be plugged in the slot on front case, now front case and rear housing are just in installation site, and then screw rod is plugged in the first tapped bore and the second tapped bore, can effectively avoid front case and rear housing is counter fills, improve the efficiency of assembling of vacuum booster.
Accompanying drawing explanation
Fig. 1 is the structural representation of this vacuum booster in embodiment.
Fig. 2 is the structural representation of this rear housing in embodiment.
Fig. 3 is the structural representation of this front case in embodiment.
In figure, 1, front case; 2, rear housing; 3, vacuum check valve; 4, servo-unit push rod; 5, choker relief valve; 6, epithelium; 7, diaphragm seat; 8, master cylinder push rod; 9, counter-force dish; 10, rubber jacking block; 11, reaction plate; 12, the first through hole; 13, the second through hole; 14, the 3rd tapped bore; 15, bolt; 16, central through hole; 17, guide cylinder; 18, connecting bore; 19, guide part; 20, the first tapped bore; 21, the second tapped bore; 22, screw rod; 23, slot; 24, arcuation projection; 25, projection; 26, shock pad; 27, side plate; 28, bolt hole.
The specific embodiment
Be below specific embodiment of the utility model by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiment.
As shown in Figure 2 and Figure 3, this vacuum booster comprises front case 1 and rear housing 2, on front case 1, offer two the first tapped bore 20, on rear housing 2, offer two second tapped bore 21, the first tapped bore 20 corresponding with the first tapped bore 20 and second tapped bore 21 interior be simultaneously a plugged with screw rod 22 corresponding with this first tapped bore 20; It is characterized in that, the medial surface of front case 1 is provided with a slot 23 that is arcuation, and the medial surface of rear housing 2 is provided with an arcuation projection 24 that can be plugged in slot 23.As preferably, the lateral surface of rear housing 2 is installed with a projection 25, is arranged with one and is foursquare shock pad 26 on projection 25, and the four edges edge of shock pad 26 is vertically installed with respectively side plate 27, on the plate face of side plate 27, offers bolt hole 15.
As shown in Figure 1, be also provided with vacuum check valve 3 on front case 1, in rear housing 2, control cock be installed, be plugged with servo-unit push rod 4 in control cock, the inner of servo-unit push rod 4 is installed with choker relief valve 5; Vacuum booster also comprises epithelium 6, epithelium 6 forms a vacuum chamber with rear housing 2, epithelium 6 forms power-assisted chamber with front case 1, epithelium 6 is installed on diaphragm seat 7, and master cylinder push rod 8 is installed on diaphragm seat 7, and master cylinder push rod 8 is positioned at front case 1, between master cylinder push rod 8 and choker relief valve 5, counter-force dish 9 is installed, the center of front case 1 outer end is fixed with the rubber jacking block 10 coaxial with master cylinder push rod 8, and rubber jacking block 10 is in the form of annular discs, between rubber jacking block 10 and master cylinder push rod 8, has brake cabin distance; Vacuum booster also comprises a reaction plate 11, on reaction plate 11, offer several the first through holes 12, on rubber jacking block 10, offer several second through holes 13 corresponding with the first through hole 12, the outer end place of front case 1 also offers three tapped bore 14, the three tapped bore 14 corresponding with the second through hole 13, second through hole 13 corresponding with the 3rd tapped bore 14 and first through hole 12 interior be simultaneously a plugged with bolt corresponding with this second through hole 13; On reaction plate 11, also offer a central through hole 16, central through hole 16 coaxially arranges with master cylinder push rod 8, the piston outer end of automobile main cylinder is plugged in central through hole 16, and the middle part of rubber jacking block 10 can extend in central through hole 16 and the piston of propelling vehicle master cylinder by elastic deformation.Vacuum booster also comprises a guide cylinder 17, the inner of guide cylinder 17 is fixed in the outer card of reaction plate 11, in guide cylinder 17, offer the connecting bore 18 being connected with central through hole 16, connecting bore 18 and the junction of central through hole 16 are one to be the guide part 19 of arcuation.Guide cylinder 17 and the integral structure of reaction plate 11 for employing injection mo(u)lding.
Principle of work of the present utility model is as follows: the front case of this vacuum booster and rear housing are in the time of assembling, can first the arcuation projection on rear housing be plugged in the slot on front case, now front case and rear housing are just in installation site, and then screw rod is plugged in the first tapped bore and the second tapped bore, can effectively avoid front case and rear housing is counter fills, improve the efficiency of assembling of vacuum booster.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various modifications or supplements or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Claims (5)
1. an automobile vacuum booster, described vacuum booster comprises front case (1) and rear housing (2), on described front case (1), offer two the first tapped bore (20), on described rear housing (2), offer two second tapped bore (21) corresponding with described the first tapped bore (20), in described the first tapped bore (20) and the second tapped bore (21) corresponding with this first tapped bore (20), be plugged with a screw rod (22) simultaneously; It is characterized in that, the medial surface of described front case (1) is provided with a slot (23) that is arcuation, and the medial surface of described rear housing (2) is provided with an arcuation projection (24) that can be plugged in described slot (23).
2. automobile vacuum booster according to claim 1, it is characterized in that, the lateral surface of described rear housing (2) is installed with a projection (25), on described projection (25), be arranged with one and be foursquare shock pad (26), the four edges edge of described shock pad (26) is vertically installed with respectively side plate (27), offers bolt hole (15) on the plate face of described side plate (27).
3. automobile vacuum booster according to claim 2, it is characterized in that, on described front case (1), be also provided with vacuum check valve (3), described rear housing is provided with control cock in (2), in described control cock, be plugged with servo-unit push rod (4), the inner of described servo-unit push rod (4) is installed with choker relief valve (5), described vacuum booster also comprises epithelium (6), described epithelium (6) and described rear housing (2) composition one vacuum chamber, described epithelium (6) and front case (1) composition power-assisted chamber, described epithelium (6) is installed on diaphragm seat (7), master cylinder push rod (8) is installed on described diaphragm seat (7), described master cylinder push rod (8) is positioned at described front case (1), between described master cylinder push rod (8) and described choker relief valve (5), counter-force dish (9) is installed, the center of described front case (1) outer end is fixed with the rubber jacking block (10) coaxial with described master cylinder push rod (8), described rubber jacking block (10) is in the form of annular discs, between described rubber jacking block (10) and described master cylinder push rod (8), there is brake cabin distance, described vacuum booster also comprises a reaction plate (11), on described reaction plate (11), offer several the first through holes (12), on described rubber jacking block (10), offer several second through holes (13) corresponding with described the first through hole (12), the outer end place of described front case (1) also offers three tapped bore (14) corresponding with described the second through hole (13), described the 3rd tapped bore (14), second through hole (13) corresponding with the 3rd tapped bore (14) and with corresponding the first through hole (12) of this second through hole (13) in be plugged with a bolt simultaneously, on described reaction plate (11), also offer a central through hole (16), described central through hole (16) coaxially arranges with described master cylinder push rod (8), the piston outer end of automobile main cylinder is plugged in described central through hole (16), and the middle part of described rubber jacking block (10) can extend in described central through hole (16) and the piston of propelling vehicle master cylinder by elastic deformation.
4. automobile vacuum booster according to claim 3, it is characterized in that, described vacuum booster also comprises a guide cylinder (17), the inner of described guide cylinder (17) is fixed in the outer card of described reaction plate (11), in described guide cylinder (17), offer the connecting bore (18) being connected with described central through hole (16), the junction of described connecting bore (18) and described central through hole (16) is one to be the guide part (19) of arcuation.
5. automobile vacuum booster according to claim 4, is characterized in that, described guide cylinder (17) and the integral structure of described reaction plate (11) for employing injection mo(u)lding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320826525.1U CN203601254U (en) | 2013-12-16 | 2013-12-16 | Automobile vacuum booster |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320826525.1U CN203601254U (en) | 2013-12-16 | 2013-12-16 | Automobile vacuum booster |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203601254U true CN203601254U (en) | 2014-05-21 |
Family
ID=50713947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320826525.1U Expired - Fee Related CN203601254U (en) | 2013-12-16 | 2013-12-16 | Automobile vacuum booster |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203601254U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104029665A (en) * | 2014-06-28 | 2014-09-10 | 浙江吉利控股集团有限公司 | Push rod assembly of vacuum booster |
-
2013
- 2013-12-16 CN CN201320826525.1U patent/CN203601254U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104029665A (en) * | 2014-06-28 | 2014-09-10 | 浙江吉利控股集团有限公司 | Push rod assembly of vacuum booster |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140521 Termination date: 20171216 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |