CN100436213C - Three-inlet and multi-exit two-stage electromagnetic booster braking general pump - Google Patents

Three-inlet and multi-exit two-stage electromagnetic booster braking general pump Download PDF

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Publication number
CN100436213C
CN100436213C CNB2006101072394A CN200610107239A CN100436213C CN 100436213 C CN100436213 C CN 100436213C CN B2006101072394 A CNB2006101072394 A CN B2006101072394A CN 200610107239 A CN200610107239 A CN 200610107239A CN 100436213 C CN100436213 C CN 100436213C
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China
Prior art keywords
piston
braking
pump
valve
air gate
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Expired - Fee Related
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CNB2006101072394A
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CN101028814A (en
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田青锋
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CHANGTONG TECHNOLOGY CO., LTD.
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田青锋
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Publication of CN100436213C publication Critical patent/CN100436213C/en
Expired - Fee Related legal-status Critical Current
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Abstract

A three-in multi-out two-stage electromagnetic boosted braking pump is composed of an upper pump body with upper piston, upper valve and low piston modules, a lower pump body with lower valve module, an upper piston sleeve, and a two-position three-way electromagnetic valve.

Description

Three-inlet and multi-exit two-stage electromagnetic booster braking general pump
One. technical field:
The present invention relates to a kind of automobile brake pump, particularly relate to a kind of three-inlet and multi-exit two-stage electromagnetic booster braking general pump.
Two. background technology:
Along with rapid economy development, the stream of people and logistics more and more appear at China various places, as the automobile of one of important traffic and transportation means, also more and more spread to vast family and enterprise.But the thing followed is the rising significantly of traffic accident, causes huge actual bodily harm and economic loss, and traffic accident as long as one of reason be that the car brakeing effect is improper and cause.Existing car brakeing master cylinder is to drive a tappet by vehicle brake pedal to move down upper piston is promoted to move down, and at first opens the rear wheel brake valve, makes the trailing wheel braking; End in contact on upper piston and the lower piston promotes lower piston and moves down then, and front-wheel brake valve is opened in the lower end of lower piston, makes front wheel brake.This master brake cylinder is because to cross the gas stroke big, the good braking effect of out of reach to a certain extent, and the plate bounce pressure that collapses is excessive, operates uncomfortable.According to this situation, people develop the fast master brake cylinder of braking, as " the braking king master cylinder " that occurs on the market, should " braking king master cylinder " shorten the gas stroke greatly, braking is fast, but, because that " braking king master cylinder " crosses gas stroke is too little, the appearance phenomenon of stopping suddenly easily, especially the empty wagons glancing impact causes back vehicle rear-end collision, unnecessary wear on tyres easily, be not suitable for sleety weather more and use, damage other parts in addition easily, cause other unnecessary loss.
Chinese patent (Granted publication CN 2645987Y, the patent No. 03210588.6) a kind of " Automobile air brake activation valve " disclosed, it is mainly by the braking valve upper cover and be located at loam cake below, coupled brake activation valve upper shell and lower house are formed, the top of loam cake is provided with brake pedal, the brake pedal below is provided with tappet, and tappet is connected at the upper piston in the upper shell, and upper piston is provided with balance spring and pull back spring outward.Described upper shell is provided with admission port that connects the back air tank and the air extractor duct that is connected the back brake repair room, is provided with the admission port and the air extractor duct that is connected preceding brake repair room of air tank before connecting on lower house.The below of lower house is provided with exhausr port.Be provided with epicoele in the described upper shell, be provided with valve in the epicoele, last valve is connected with upper piston.Also be provided with middle piston in the upper shell, middle piston also is provided with air extractor vent the pressurized air of epicoele is communicated with the exhaust clearance of middle piston top below last valve in the epicoele.Be provided with cavity of resorption in lower house, be provided with lower valve in the cavity of resorption, lower valve links to each other with middle piston.This technology adopts rubber balance spring and counter balance pocket independently, during good, the urgent gas transmission of servo-actuated braking soon, still, this technology is not suitable for using under empty wagons, the sleety weather situation.
Three. summary of the invention:
Purpose of the present invention: overcome the defective of prior art, a kind of simple in structure, result of use good, existing potent deceleration and stopping performance has good voltage regulation performance again three-inlet and multi-exit two-stage electromagnetic booster braking general pump is provided.
Technical scheme of the present invention: a kind of three-inlet and multi-exit two-stage electromagnetic booster braking general pump, contain upper pump casing and lower pump body, wherein be provided with push rod in the upper pump casing, tip-lever support, the voltage stabilizing rubber pad, upper piston, upper reset spring, last valve assembly, lower piston and following retracing spring, also be provided with back braking induction opening and air gate on the upper pump casing, be provided with down valve assembly in the lower pump body, braking induction opening and air gate before also being provided with on the lower pump body, described upper piston outside face is the step face of cylinder, its step plane is provided with the upper piston cover, the inner ring surface of this upper piston cover and the upper step face of cylinder bearing fit of upper piston, its outer ring surface and upper pump casing inwall are fastenedly connected, run through upper pump casing and be provided with the super charge hole, the inner end in this super charge hole is communicated with the lower surface of upper piston cover, its outer end is by being communicated with back braking air gate behind the two-position three way magnetic valve, and described two-position three way magnetic valve connects with the control power supply; Described lower piston outside face is the step face of cylinder, and its step plane is provided with the lower piston cover, the inner ring surface of this lower piston cover and the lower step face of cylinder bearing fit of lower piston, its outer ring surface and middle pump body inwall bearing fit; Go up in the described upper pump casing valve give vent to anger chamber respectively with back braking air gate, lower piston or/and lower piston puts end face is communicated with sealed chamber between the upper pump casing diapire.
Brake air gate after braking induction opening, one after being provided with one on each side in three sides of described upper pump casing, wherein back braking induction opening on the same side and air gate can be communicated with or disconnect by last valve assembly; Brake air gate before braking induction opening, one before being provided with one on each side in three sides of described lower pump body, wherein preceding braking induction opening on the same side and air gate can be communicated with or disconnect by valve assembly down.
Described super charge hole is communicated with braking air gate after separately, and perhaps described super charge hole is passed through a threeway tube head and is communicated with the tracheae braked between air gate and the rear braking subpump after.
Described bearing fit face is provided with seal ring; The contacted end face of the upper and lower pump housing is provided with seal ring; Be provided with dust protecting cap between described push rod and the pump cover.
Described upward valve assembly contains valve, goes up the valve retracing spring, goes up the valve plug, and described valve assembly down contains valve, following valve retracing spring and following valve plug down.
Beneficial effect of the present invention:
1. the present invention has function of increasing pressure, accelerated retro-speed, run through upper pump casing and be provided with the super charge hole, the inner end in this super charge hole is communicated with the lower surface of upper piston cover, its outer end is by being communicated with back braking air gate behind the two-position three way magnetic valve, when this electromagnetic valve is opened, air pressure enters supercharging air chamber (glancing impact, upper piston moves downward, the closed chamber that forms between the step surface of upper piston cover lower surface and upper piston is the supercharging air chamber), reduce the bounce pressure of upper piston, dwindle the retractility of voltage stabilizing rubber pad, pedal during with stroke the upper piston stroke increase, thereby shorten braking time, good braking effect relatively is fit to heavy duty this moment, descending, conditions such as emergency situation.
2. the present invention has good voltage regulation performance, safety relatively, operate also more comfortable, closed electromagnetic valve, when last valve was opened, air pressure acted on the upper piston lower surface on the one hand, formed back pressure, increased the voltage stabilizing rubber pad and stretched, and formed good voltage regulation performance; Air pressure enters lower piston on the other hand or/and lower piston puts the sealed chamber between end face and the middle pump body roof, promotes lower piston and move downward, and master cylinder enters soft voltage stabilizing state, relatively is fit to conditions such as empty wagons, sleety weather this moment.
3. the present invention is the same substantially with the external structure of existing master cylinder, is convenient to install on existing vehicle, has good replaceability, can directly change existing vehicle, and improvement cost is low.
4. braking induction opening and air gate before the present invention is provided with, the preceding braking air gate that needs is connected, the braking air gate stops up before the N/R, in addition, the super charge hole can be communicated with braking air gate after separately, also can be communicated with the tracheae braked between air gate and the rear braking subpump after, use very convenient by threeway tube head.
5. the present invention has adopted automatically controlled two stage supercharging technology, chaufeur when driving can according to join the loadage amount, electromagnetic valve is closed or opened to the road surface situation, to reach different braking effects, can effectively improve the operation comfort of traveling security and chaufeur.
6. the present invention adopts upper pump casing directly to captive joint with lower pump body, and upper and lower valve assembly and up and down piston component be installed in its inner chamber, simple for structure, cost is lower.
7. range of use of the present invention is wide, is applicable to multiple existing vehicle model, and promotion and implementation easily have good social and economic benefit.
Four. description of drawings:
Fig. 1 is one of structural representation of three-inlet and multi-exit two-stage electromagnetic booster braking general pump;
Fig. 2 is the left view of three-inlet and multi-exit two-stage electromagnetic booster braking general pump shown in Figure 1;
Fig. 3 is the birds-eye view of three-inlet and multi-exit two-stage electromagnetic booster braking general pump shown in Figure 1;
Fig. 4 be three-inlet and multi-exit two-stage electromagnetic booster braking general pump structural representation two;
Fig. 5 is the left view of three-inlet and multi-exit two-stage electromagnetic booster braking general pump shown in Figure 4;
Fig. 6 is the birds-eye view of three-inlet and multi-exit two-stage electromagnetic booster braking general pump shown in Figure 4;
Fig. 7 is the fundamental diagram of three-inlet and multi-exit two-stage electromagnetic booster braking general pump.
Five: the specific embodiment:
Embodiment one: referring to Fig. 1, Fig. 2, Fig. 3 and Fig. 7, and among the figure, the 1-upper pump casing, 2-tip-lever support jump ring, 3-dust protecting cap, 4-voltage stabilizing rubber pad, the 5-tip-lever support, 6-dust protecting cap jump ring, 7-upper piston cover, the last valve of 8-is braked induction opening behind the 9-, the last valve plug of 10-, the last valve plug of 11-jump ring, braking induction opening before the 12-lower piston cover, 13-, the 14-lower pump body, valve plug jump ring under the 15-, valve plug under the 16-, valve plug positioning seat under the 17-, braking air gate before the 18-, valve under the 19-, the 20-lower piston is braked air gate behind the 21-, 22-super charge hole, the 23-upper piston.
Three-inlet and multi-exit two-stage electromagnetic booster braking general pump contains upper pump casing 1 and lower pump body 14, the two is bolted to connection, wherein be provided with tip-lever support 5 in the upper pump casing 1, voltage stabilizing rubber pad 4, upper piston 23, upper reset spring, last valve 8, last valve retracing spring, last valve plug 10, lower piston 20 and following retracing spring, also be provided with back braking induction opening 9 and air gate 21 on the upper pump casing 1, back braking induction opening 9 and air gate 21 are communicated with by last valve 8 or disconnect, be provided with down valve 19 in the lower pump body 14, following valve retracing spring and following valve plug 16, following valve plug 16 is by valve plug positioning seat 17 and following valve plug jump ring 15 are fixed on the lower pump body 14 down, braking induction opening 13 and air gate 18 before also being provided with on the lower pump body 14, preceding braking induction opening 13 and air gate 18 are by valve connection or disconnection down, upper piston 23 outside faces are the step face of cylinder, its step plane is provided with upper piston cover 7, the inner ring surface of this upper piston cover 7 and the upper step face of cylinder bearing fit of upper piston 23, its outer ring surface and upper pump casing 1 inwall are fastenedly connected, run through upper pump casing 1 and be provided with super charge hole 22, the inner end in this super charge hole 22 is communicated with the lower surface of upper piston cover 7, its outer end is communicated with (the concrete connection structure of not drawing among the figure) with back braking air gate 21 after by two-position three way magnetic valve, two-position three way magnetic valve with control power supply and connect; Lower piston 20 outside faces are the step face of cylinder, and its step plane is provided with lower piston cover 12, the inner ring surface of this lower piston cover 12 and the lower step face of cylinder bearing fit of lower piston 20, its outer ring surface and lower pump body 14 inwall bearing fits; The chamber of giving vent to anger of going up valve 8 in the upper pump casing 1 is communicated with air pressure and support upper piston 9 lower surfaces or/and lower piston overlaps 12 upper surfaces with sealed chamber between upper pump casing 1 diapire with back braking air gate 21, lower piston 20 respectively.
In the present embodiment, braking air gate 21 behind the braking induction opening 9 after being respectively arranged with on 1 three sides of upper pump casing, one, wherein back braking induction opening 9 on the same side and air gate 21 can be communicated with or disconnection by last valve assembly, certainly, the back braking induction opening 9 on side also can be communicated with the back braking air gate 21 on other side or disconnect by last valve assembly; Braking air gate 18 before the braking induction opening 13 before being respectively arranged with on 14 3 sides of lower pump body, one, wherein preceding braking induction opening 13 on the same side and air gate 18 can be by valve assembly connection or disconnections down, certainly, the preceding braking induction opening 13 on side also can be communicated with the preceding braking air gate 18 on other side or disconnect by valve assembly down.During use, stop up or open part back braking induction opening 9 and air gate 21 and preceding braking induction opening 13 and air gate 18 as required.
In addition, super charge hole 22 can be separately be communicated with braking air gate 21 after, also can be communicated with the tracheae braked between air gate 21 and the rear braking subpump after by a threeway tube head.And all bearing fit faces are provided with seal ring; The contacted end face of the upper and lower pump housing is provided with seal ring.
Its groundwork is in proper order: tip-lever support 5, voltage stabilizing rubber pad 4 promotes upper piston 23 and moves downward, and then open valve 8, back braking induction opening 9 and air gate 21 are communicated with, pressurized air enters rear braking subpump and carries out the trailing wheel braking, upper piston 23 continues to move downward, make lower piston 20 open down valve 19, preceding braking induction opening 13 and air gate 18 are communicated with, brake cylinder carried out front wheel brake before pressurized air entered, after the end of braking, under the effect of upper reset spring and following retracing spring, upper piston 23, lower piston 20 resets, last valve 8, following valve 19 is respectively at last valve retracing spring, close under the following valve action of reset spring, the connection of braking air inlet pipe 9 and freeing pipe 21 after disconnecting, and disconnect the connection of braking air inlet pipe 13 and freeing pipe 18 before the back.
When two-position three way magnetic valve is opened, air pressure enters supercharging air chamber (glancing impact, upper piston 23 moves downward, upper piston overlaps the closed chamber that forms between the step surface of 7 lower surfaces and upper piston 23 and is the supercharging air chamber), reduce the bounce pressure of upper piston 23, the retractility of dwindling voltage stabilizing rubber pad 4, pedal during with stroke upper piston 23 strokes increase, thereby the shortening braking time, good braking effect relatively is fit to conditions such as heavy duty, descending, emergency situation this moment.
When two-position three way magnetic valve is closed, last valve is opened, and air pressure supports upper piston 23 lower surfaces on the one hand and forms back pressure, and it is flexible to increase voltage stabilizing rubber pad 4, forms good voltage regulation result; Air pressure enters lower piston 20 on the other hand or/and lower piston overlaps the sealed chamber between 12 upper surfaces and upper pump casing 1 diapire, promotes lower piston 20 and move downward, and master cylinder enters soft voltage stabilizing state, relatively is fit to conditions such as empty wagons, sleety weather this moment.
In a word, the present invention has adopted automatically controlled two stage supercharging technology, chaufeur when driving can according to join the loadage amount, electromagnetic valve is closed or opened to the road surface situation, to reach different braking effects, can effectively improve the operation comfort of traveling security and chaufeur.Present embodiment is applicable to all pneumatic brake types.
Embodiment two: referring to Fig. 4, Fig. 5, Fig. 6 and Fig. 7, the meaning of the representative that numbering is identical with embodiment one among the figure is identical, something in common does not repeat, difference is: the concrete structure of upper pump casing 1, lower pump body 14, lower piston 20, lower piston cover 12, dust protecting cap 3 is different with corresponding component among the embodiment one, and be provided with gland 25 in the dust protecting cap 3, though the structure difference of corresponding component, principle of work is identical.Present embodiment is applicable to comings series pneumatic brake type.

Claims (5)

1. three-inlet and multi-exit two-stage electromagnetic booster braking general pump, contain upper pump casing and lower pump body, wherein be provided with push rod in the upper pump casing, tip-lever support, the voltage stabilizing rubber pad, upper piston, upper reset spring, last valve assembly, lower piston and following retracing spring, also be provided with back braking induction opening and air gate on the upper pump casing, be provided with down valve assembly in the lower pump body, braking induction opening and air gate before also being provided with on the lower pump body, it is characterized in that: described upper piston outside face is the step face of cylinder, its step plane is provided with the upper piston cover, the inner ring surface of this upper piston cover and the upper step face of cylinder bearing fit of upper piston, its outer ring surface and upper pump casing inwall are fastenedly connected, run through upper pump casing and be provided with the super charge hole, the inner end in this super charge hole is communicated with the lower surface of upper piston cover, its outer end is by being communicated with back braking air gate behind the two-position three way magnetic valve, and described two-position three way magnetic valve connects with the control power supply; Described lower piston outside face is the step face of cylinder, and its step plane is provided with the lower piston cover, the inner ring surface of this lower piston cover and the lower step face of cylinder bearing fit of lower piston, its outer ring surface and middle pump body inwall bearing fit; Go up in the described upper pump casing valve give vent to anger chamber respectively with back braking air gate, lower piston or/and lower piston puts end face is communicated with sealed chamber between the upper pump casing diapire.
2. according to the described three-inlet and multi-exit two-stage electromagnetic booster braking general pump of claim 1, it is characterized in that: brake air gate after braking induction opening, one after being provided with one on each side in three sides of described upper pump casing, back braking induction opening on the same side and air gate can be communicated with or disconnect by last valve assembly; Brake air gate before braking induction opening, one before being provided with one on each side in three sides of described lower pump body, preceding braking induction opening on the same side and air gate can be communicated with or disconnect by valve assembly down.
3. according to the described three-inlet and multi-exit two-stage electromagnetic booster braking general pump of claim 2, it is characterized in that: described super charge hole is communicated with braking air gate after separately, and perhaps described super charge hole is passed through a threeway tube head and is communicated with the tracheae braked between air gate and the rear braking subpump after.
4. according to the described three-inlet and multi-exit two-stage electromagnetic booster braking general pump of claim 1, it is characterized in that: described bearing fit face is provided with seal ring; The contacted end face of the upper and lower pump housing is provided with seal ring; Be provided with dust protecting cap between described push rod and the pump cover.
5. according to the arbitrary described three-inlet and multi-exit two-stage electromagnetic booster braking general pump of claim 1~4, it is characterized in that: described upward valve assembly contains valve, goes up the valve retracing spring, goes up the valve plug, and described valve assembly down contains valve, following valve retracing spring and following valve plug down.
CNB2006101072394A 2006-09-30 2006-09-30 Three-inlet and multi-exit two-stage electromagnetic booster braking general pump Expired - Fee Related CN100436213C (en)

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CN100436213C true CN100436213C (en) 2008-11-26

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101857020A (en) * 2010-05-18 2010-10-13 河南昌通科技有限公司 Two-stage stab-braking brake master valve

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104192131B (en) * 2014-09-22 2016-08-24 昌通科技有限公司 With retarder two grades and three grades of cadence braking master valves
CN104192137B (en) * 2014-09-22 2016-08-17 昌通科技有限公司 Two grades, three grades of cadence braking master valves

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3502018A1 (en) * 1985-01-23 1986-07-24 Teves Gmbh Alfred Hydraulic brake system
CN1093661A (en) * 1993-03-27 1994-10-19 史占彪 Double-pipeline booster braking main pump
CN1125182A (en) * 1994-10-05 1996-06-26 罗伯特-博希股份公司 Brake-pressure modulation device
US6276137B1 (en) * 2000-01-14 2001-08-21 Delphi Technologies, Inc. Brake master cylinder with dual check valve compensation through secondary piston
CN2645987Y (en) * 2003-09-12 2004-10-06 万安集团诸暨汽车制动系统有限公司 Automobile air brake valve
CN2741840Y (en) * 2004-07-13 2005-11-23 霍润生 Air booster-type double pipeline hydraulic braking general pump
CN200960916Y (en) * 2006-09-30 2007-10-17 田青锋 Three-inlet multi-outlet type two-stage electromagnetic pressurization braking general pump

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3502018A1 (en) * 1985-01-23 1986-07-24 Teves Gmbh Alfred Hydraulic brake system
CN1093661A (en) * 1993-03-27 1994-10-19 史占彪 Double-pipeline booster braking main pump
CN1125182A (en) * 1994-10-05 1996-06-26 罗伯特-博希股份公司 Brake-pressure modulation device
US6276137B1 (en) * 2000-01-14 2001-08-21 Delphi Technologies, Inc. Brake master cylinder with dual check valve compensation through secondary piston
CN2645987Y (en) * 2003-09-12 2004-10-06 万安集团诸暨汽车制动系统有限公司 Automobile air brake valve
CN2741840Y (en) * 2004-07-13 2005-11-23 霍润生 Air booster-type double pipeline hydraulic braking general pump
CN200960916Y (en) * 2006-09-30 2007-10-17 田青锋 Three-inlet multi-outlet type two-stage electromagnetic pressurization braking general pump

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101857020A (en) * 2010-05-18 2010-10-13 河南昌通科技有限公司 Two-stage stab-braking brake master valve
CN101857020B (en) * 2010-05-18 2012-05-23 河南昌通科技有限公司 Two-stage stab-braking brake master valve

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