CN201371807Y - Double-membrane perforation bar type vacuum booster - Google Patents
Double-membrane perforation bar type vacuum booster Download PDFInfo
- Publication number
- CN201371807Y CN201371807Y CN200920143373U CN200920143373U CN201371807Y CN 201371807 Y CN201371807 Y CN 201371807Y CN 200920143373 U CN200920143373 U CN 200920143373U CN 200920143373 U CN200920143373 U CN 200920143373U CN 201371807 Y CN201371807 Y CN 201371807Y
- Authority
- CN
- China
- Prior art keywords
- bar
- shell
- cushion block
- vacuum booster
- type vacuum
- 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 - Fee Related
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- Braking Systems And Boosters (AREA)
Abstract
The utility model discloses a double-membrane perforation bar type vacuum booster, comprising a front shell, a middle ring shell, a middle shell, a back shell, a valve, a membrane, a perforation bar, wherein the front shell is in rivet connection with the middle ring shell and the back shell is in rivet connection with the middle ring shell and a rubber sealing ring sleeved on one end of the perforation bar is inserted into a sediment tank above the perforation bar and an interference contact connection is set between the rubber sealing ring and the sedimentation tank; a step segment is set on another end of the perforation bar and perforates through the open hole on the back shell and an adjustment cushion block is sleeved outside the step segment and the back shell is compacted on the adjustment cushion block and the adjustment cushion block, the perforation bar and the back shell are in interference contact connection by the rubber sealing piece. The advantages of the utility model are that: light weight, sensitive brake, convenient disassembly, simple structure and low cost.
Description
Technical field
The utility model relates to a kind of vacuum booster that is applicable to brake system of car, relates in particular to a kind of rod-type vacuum booster that runs through.
Background technology
Vacuum booster is the critical component in the brake system of car, and its effect is that the vacuum of utilizing engine intake manifold vacuum or aux. vacuum pump to produce is amplified brake pedal force, thereby alleviates the power that chaufeur is used to brake.
The existing vacuum booster that is applied to brake system of car is non-ly to run through rod-type and run through the rod-type vacuum booster.The non-rod-type vacuum booster that runs through is owing to be to become one by housing outer rim riveted way, vacuum booster is in order to bear higher strength and stiffness, prevent housing distortion, therefore need to select thicker case material, so not only increased cost, also increased the weight of product weight, the dismounting of product, maintenance are all inconvenient.Run through the rod-type vacuum booster owing to bear external force with bar, reduced the distortion of housing, run through the rod-type vacuum booster and can select thin case material for use, just can bear enough strength and stiffness, so not only can reduce product weight, lower material cost, also be convenient to dismounting and maintenance.
What occur now runs through the rod-type vacuum booster, its bar and bar bolt, fore shell are riveted together, and adopted setting nut to regulate the setting height(from bottom) of back cover, there is following shortcoming in this class formation: the one, owing between setting nut and bar, be coated with thread locking adhesive, be unfavorable for reprocessing or dismantling; The 2nd, because bar and bar bolt, fore shell are riveted together, in case go wrong, the worker who causes is useless more, and cost increases; The 3rd, owing to used setting nut to adjust the setting height(from bottom) of back cover, higher to the dimension precision requirement of setting nut, increased cost thereby make.
Summary of the invention
The utility model is for solving above-mentioned technical matters, provide a kind of and reprocessed conveniently, the leak tightness reliable in structure, working stability run through the rod-type vacuum booster.
Technical solutions of the utility model are as follows:
A kind of pair of diaphragm runs through the rod-type vacuum booster, comprise front case, middle toroidal shell body, middle shell, rear housing, valve body, diaphragm, bar, front case is connected with middle toroidal shell body riveted joint, rear housing is connected with middle toroidal shell body riveted joint, there is the bar bolt to be connected with the front case riveted joint, bar one end is set with rubber seal and inserts in the deep gouge on the bar bolt, and the interference contact is connected between rubber seal and the deep gouge; The bar other end has the step section, and described step section is passed the perforate on the rear housing, and step section overcoat debugs the joint cushion block, and rear housing is pressed on to be regulated on the cushion block, regulates between cushion block, bar and the rear housing to be connected by the rubber seal interference fit.
Bar one end has first annular groove, and rubber seal is set in the annular groove; On the inner hole wall second annular groove is arranged also on the described adjusting cushion block, rubber seal is positioned at second annular groove.
The utility model has the advantages that: novel structure, no-idle running does not have stress deformation at its housing of glancing impact, has improved the sensitieness of car load braking and the reliability of braking; In light weight, consumption of fuel is low, can reduce use cost; Reprocess convenient disassembly, the worker who causes in the manufacturing process is useless to significantly reduce, and has reduced manufacturing cost; Bar, spacer block structure are simple, and easily processing has reduced tooling cost.
Description of drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is the utility model partial enlarged view.
Fig. 3 is the utility model bar structural representation.
Fig. 4 is the utility model spacer block structure scheme drawing.
Fig. 5 is the utility model bar bolt arrangement scheme drawing.
The specific embodiment
Shown in accompanying drawing, a kind of pair of diaphragm runs through the rod-type vacuum booster, comprises input bar 1, choker relief valve 2, plunger 3, valve body 6, seal ring 7, regulates cushion block 8, bar 9, spacer 10, rear housing 11, epithelium 13, middle toroidal shell body 14, middle shell 15, epithelium 17, front case 18, bar bolt 19, seal ring 20 and big spring 21.Front case 18 is connected with middle toroidal shell body 14 riveted joints, rear housing 11 is connected with middle toroidal shell body 14 riveted joints, there is bar bolt 19 to be connected with front case 18 riveted joints, wherein, 2 riveted joints are connected input bar 1 with plunger, 2 contacts of choker relief valve 3 and plunger are connected and form air door, and choker relief valve 3 and valve body 6 contact and be connected and form vacuum valve.Bar 9 one ends are provided with step, the step section is passed the perforate on the rear housing 11, and step section overcoat is debug joint cushion block 8, regulate to contact between cushion block 8 and the rear housing 11 and be connected, regulate to be provided with seal ring 7 interference between cushion block 8 and the bar 9 and to be connected, seal ring 7 plays the static seal effect between rear housing 11 and bar 9; Rear housing 11 is pressed on to be regulated on the cushion block 8, regulates between cushion block 8, bar 9 and the rear housing 11 to be connected by rubber seal 7 interference fit.Bar 9 other ends have annular groove and are set with rubber seal 20 and insert in the deep gouge on the bar bolts 19, and the interference contact is connected between rubber seal and the deep gouge; Rubber seal 20 places annular groove, plays the static seal effect.Bar 9 middle parts and epithelium 17 interference bonded assembly contact surfaces are provided with the structure that is used to store grease, guarantee grease sufficient lubrication between diaphragm and bar, improve the life-span of diaphragm.Rivet between bar bolt 19 and the front case 18 and be connected, can play the static seal effect.Form epitrochoidal chamber 26 between rear housing 11 and the epithelium 13, form epitrochoidal chamber 25 between epithelium 13 and middle toroidal shell body 14, the middle shell 15, form epitrochoidal chamber 24 between middle shell 15 and the epithelium 17, form epitrochoidal chamber 23 between epithelium 17 and the front case 18, be connected by spacer 10 between the epitrochoidal chamber 24,26, epitrochoidal chamber 23,25 is connected.
Claims (4)
1, a kind of pair of diaphragm runs through the rod-type vacuum booster, comprise front case, middle toroidal shell body, middle shell, rear housing, valve body, diaphragm, bar, front case is connected with middle toroidal shell body riveted joint, rear housing is connected with middle toroidal shell body riveted joint, it is characterized in that: have the riveted joint of bar bolt and front case to be connected, be connected by the rubber seal interference fit between bar one end and the bar bolt; The bar other end has the step section, and described step section is passed the perforate on the rear housing, and step section overcoat debugs the joint cushion block, and rear housing is pressed on to be regulated on the cushion block, regulates between cushion block, bar and the rear housing to be connected by the rubber seal interference fit.
2, a kind of pair of diaphragm according to claim 1 runs through the rod-type vacuum booster, it is characterized in that: bar one end has annular groove, and rubber seal is set in the annular groove.
3, a kind of pair of diaphragm according to claim 1 runs through the rod-type vacuum booster, it is characterized in that: bar one end is set with rubber seal and inserts in the deep gouge on the bar bolt, and the interference contact is connected between rubber seal and the deep gouge.
4, a kind of pair of diaphragm according to claim 1 runs through the rod-type vacuum booster, it is characterized in that: regulating on the cushion block has annular groove on the inner hole wall, and rubber seal is positioned at annular groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920143373U CN201371807Y (en) | 2009-03-17 | 2009-03-17 | Double-membrane perforation bar type vacuum booster |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920143373U CN201371807Y (en) | 2009-03-17 | 2009-03-17 | Double-membrane perforation bar type vacuum booster |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201371807Y true CN201371807Y (en) | 2009-12-30 |
Family
ID=41497889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920143373U Expired - Fee Related CN201371807Y (en) | 2009-03-17 | 2009-03-17 | Double-membrane perforation bar type vacuum booster |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201371807Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102837692A (en) * | 2011-06-23 | 2012-12-26 | 株式会社万都 | Mounting structure for boosters and booster assembly for vehicles having the same |
-
2009
- 2009-03-17 CN CN200920143373U patent/CN201371807Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102837692A (en) * | 2011-06-23 | 2012-12-26 | 株式会社万都 | Mounting structure for boosters and booster assembly for vehicles having the same |
| US9050962B2 (en) | 2011-06-23 | 2015-06-09 | Mando Corporation | Mounting structure for boosters and booster assembly for vehicles having the same |
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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: 20091230 Termination date: 20160317 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |