CN202065463U - Double-deck booster braking piston - Google Patents
Double-deck booster braking piston Download PDFInfo
- Publication number
- CN202065463U CN202065463U CN2011200214500U CN201120021450U CN202065463U CN 202065463 U CN202065463 U CN 202065463U CN 2011200214500 U CN2011200214500 U CN 2011200214500U CN 201120021450 U CN201120021450 U CN 201120021450U CN 202065463 U CN202065463 U CN 202065463U
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- piston
- core
- jump ring
- deck
- double
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- Expired - Fee Related
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Abstract
A double-deck booster braking piston relates to piston devices of various vehicle braking systems and is clamped into a brake master pump shell through clamp springs. At one end of the piston connected with a braking system, a sealing ring and a spring are connected between one clamp spring and the piston, and the piston is fixed to one end of a connecting brake control rod through the spring. The double-deck booster braking piston is characterized in that the piston comprises a piston sleeve, a piston core and a mandrel, the mandrel is connected with the piston core through the clamp springs, the piston core is connected with the piston sleeve through the clamp springs, and a piston cavity of the brake master pump shell is longer than a piston shell. The double-deck booster braking piston is effective in braking and short in braking distance.
Description
Technical field
The utility model relates to the piston apparatus of various vehicle brake braking system.
Background technique
The Braking piston of existing large vehicle generally has two kinds, a kind of is former car general braking pump piston, piston is whole the slip in master cylinder, and the recoil force area of gas is big like this, and pedal is heavy during skidding, continuous, reflection is slow,, another kind is the piston of improved, just moving piston core, lighter during skidding than former car piston, spirit, but step on when pulling braking, step on is the same with flooring a bit, braking effect is undesirable like this,, it is undesirable that these two kinds of methods all exist braking effect, the brake operating handle is near position, the end, and it is weak more to brake.Chinese patent application number is that 99121954.6 utility model patent discloses a kind of dual-stage pneumatic control valve, it comprises a small piston, the piston rod of this small piston passes the valve seat mouth and stretches in the valve seat air cavity, piston rod part has a Movable valve, this valve is connected with a little spring, and diameter of piston rod is less than valve seat mouth diameter, and the valve seat air cavity is provided with the valve inlet hole, the compression chamber that valve seat and this small piston form is provided with a small piston air outlet hole, and there is a big spring bottom of this small piston; The piston rod of one big piston extend in the small piston spring chamber from the big piston compression chamber, and acts on this small piston bottom, and the big piston bottom has one to remove spring, and the big piston compression chamber is provided with big piston inlet hole and big piston air outlet hole; The piston rod of big piston and small piston is hollow structure, its formed air flue is communicated with the formed releasing spring of releasing spring air cavity, remove the spring air cavity and be in communication with the outside, brake simultaneously but this technological scheme is still two pistons, and braking effect is also undesirable.
Summary of the invention
The purpose of this utility model is intended to overcome the defective of prior art, and a kind of piston that can double-deck supercharging is provided, and good braking effect, stopping distance are short, double-deck booster brake Braking piston.
Double-deck supercharging skidding piston described in the utility model, piston is stuck in the general braking pump shell by jump ring, an end that is connected with brake system, be connected with seal ring and spring between jump ring and the piston, piston is fixed on by spring and connects brake operating handle one end, and piston is by piston sleeve, piston core, axle core, and the axle core is connected by jump ring with piston core, piston core is connected by jump ring with piston sleeve, and the piston cavity length of general braking pump shell is longer than the piston outer cover length.Piston pushes away the air-flow boost pressure by opening valve in general braking pump by piston core, piston core withstands the piston sleeve boss after being displaced to certain position, thereby drive piston sleeve and overcome the bullet car of spring forward at general braking pump shell intrinsic displacement, further reach the purpose that continues supercharging, piston length is shorter than the piston cavity length of general braking pump shell, piston is fixed on by spring and connects brake operating handle one end, exactly in order to realize the purpose of double-deck supercharging, make stable gas pressure strong. be connected with seal ring and spring between jump ring and the piston, piston is fixed on by spring and connects brake operating handle one end.
Described double-deck booster brake Braking piston, described piston sleeve, piston core, axle core connect by jump ring, piston core is connected between piston sleeve boss and the jump ring, distance between jump ring and the boss is the distance of piston core at the piston sleeve intrinsic displacement, the axle core is connected between piston core boss and the jump ring, and the distance between jump ring and the piston core boss is the distance of axle core at the piston core intrinsic displacement.Piston sleeve is connecting brake system one end indent, and the distance of the air that is full of in the indent in piston sleeve and master cylinder produces secondary booster.
Double-deck booster brake Braking piston described in the utility model, under the manipulation of brake operating handle, the piston shaft core is displacement forward under the effect of external force, when being moved to the piston core boss, promote piston core and produce displacement forward, at this moment the brake system that is connected with piston core begins braking, when the brake operating handle continues piston core is applied external force, when piston core is displaced to the piston sleeve lug boss position forward, promote the elastic force that piston sleeve overcomes spring simultaneously, piston sleeve is displacement forward also, further reach the purpose that continues supercharging, strengthened driving the power of brake, simultaneously, piston sleeve is an indent connecting brake system one end, when starting the brake system braking, built up air in certain amount in the indent, forward during displacement, the power that compression produced of air has also further been strengthened driving the pressure of brake at whole piston sleeve, braking effect is good more more on earth to make brake, thereby the action radius of braking is obviously shortened.
Description of drawings
Fig. 1 is the piston schematic representation.
Fig. 2 is the piston cross-sectional view.
Fig. 3 is installed in general braking pump inner structure schematic representation for piston.
Among the figure, 1-general braking pump shell, 2-piston, 3-spring, 4-jump ring, 5-seal ring, 6-jump ring, 21-piston core, 22-piston sleeve, 23-axle core.
Embodiment
Below in conjunction with accompanying drawing the utility model is described further, but is not limited to embodiment.
Double-deck booster brake Braking piston described in the utility model, piston 2 is stuck in the general braking pump shell 1 by jump ring 6, the end that piston 2 is connected with brake system, be connected with seal ring and spring 3 between jump ring 4 and the piston 2, piston 2 is fixed on by spring 3 and connects brake operating handle one end, piston 2 is by piston sleeve 22, piston core 21, axle core 23, axle core 23 and piston core 21 are connected by jump ring, piston core 21 is longer than the piston outer cover length with piston sleeve 22 by the piston cavity length of card shell 1, makes piston 2 can produce moving of 0.2-1cm in general braking pump shell 1.Piston 2 pushes away the air-flow boost pressure by opening valve in general braking pump by piston core 21, piston core 21 drives piston sleeve 22 continuation superchargings behind certain position, make stable gas pressure strong. be connected with seal ring 5 and spring 3 between jump ring and the piston 2, piston 2 is fixed on by spring 3 and connects brake operating handle one end.
Described double-deck booster brake Braking piston, described piston sleeve 22, piston core 21, axle core 23 connect by jump ring, piston core 21 is connected between piston sleeve 22 boss and the jump ring, distance between jump ring and the boss is the distance of piston core 21 at piston sleeve 22 intrinsic displacements, axle core 23 is connected between piston core 21 boss and the jump ring, and the distance between jump ring and piston core 21 boss is the distance of axle core 23 at the piston core intrinsic displacement.Distance in piston sleeve and the master cylinder produces secondary booster then, and piston sleeve 22 is connecting brake system one end indent.All the other are with embodiment 1.
Claims (3)
1. double-deck supercharging skidding piston, piston is stuck in the general braking pump shell by jump ring, an end that is connected with brake system, be connected with seal ring and spring between jump ring and the piston, piston is fixed on by spring and connects brake operating handle one end, it is characterized in that, piston is by piston sleeve, piston core, axle core, the axle core is connected by jump ring with piston core, and piston core is connected by jump ring with piston sleeve, and the piston cavity length of general braking pump shell is longer than the piston outer cover length.
2. double-deck supercharging skidding piston according to claim 1, it is characterized in that, described piston sleeve, piston core, axle core connect by jump ring, piston core is connected between piston sleeve boss and the jump ring, distance between jump ring and the boss is the distance of piston core at the piston sleeve intrinsic displacement, the axle core is connected between piston core boss and the jump ring, and the distance between jump ring and the piston core boss is the distance of axle core at the piston core intrinsic displacement.
3. double-deck supercharging skidding piston according to claim 1 is characterized in that, described piston sleeve is connecting brake system one end indent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200214500U CN202065463U (en) | 2011-01-24 | 2011-01-24 | Double-deck booster braking piston |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200214500U CN202065463U (en) | 2011-01-24 | 2011-01-24 | Double-deck booster braking piston |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202065463U true CN202065463U (en) | 2011-12-07 |
Family
ID=45059326
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200214500U Expired - Fee Related CN202065463U (en) | 2011-01-24 | 2011-01-24 | Double-deck booster braking piston |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202065463U (en) |
-
2011
- 2011-01-24 CN CN2011200214500U patent/CN202065463U/en not_active Expired - Fee Related
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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: 20111207 Termination date: 20160124 |
|
| EXPY | Termination of patent right or utility model |