CN200960917Y - Single-inlet multi-outlet type two-stage electromagnetic pressurization braking general pump - Google Patents

Single-inlet multi-outlet type two-stage electromagnetic pressurization braking general pump Download PDF

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Publication number
CN200960917Y
CN200960917Y CN 200620130020 CN200620130020U CN200960917Y CN 200960917 Y CN200960917 Y CN 200960917Y CN 200620130020 CN200620130020 CN 200620130020 CN 200620130020 U CN200620130020 U CN 200620130020U CN 200960917 Y CN200960917 Y CN 200960917Y
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Prior art keywords
pump
piston
braking
valve
air gate
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CN 200620130020
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Chinese (zh)
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田青锋
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田青锋
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Abstract

The utility model discloses a single-input multi-output two-stage electromagnetic pressure-boosting brake master pump which comprises a pump cover, an upper pump body, a middle pump body and a lower pump body, wherein an upper piston component is arranged in the pump cover and the upper pump body, the middle pump body is provided with an upper shutter component, a lower piston component, a back brake air inlet hole and outlet hole, the lower pump body is provided with a lower shutter component, a front brake air inlet hole and outlet hole. An upper piston sleeve is arranged between the upper piston and the upper pump body, the inner end of the pressure-boosting air inlet hole is communicated with the lower end-face of the upper piston sleeve, the outer end is communicated with the back brake air outlet hole after passing a two-stage three-way electromagnetic valve. The air outlet cavity of the upper shutter on the middle pump body is respectively communicated with the back brake air outlet hole, the sealed cavity between the lower end-face of the upper piston and the bottom wall of the upper pump body, the sealed cavity between the lower piston or/and lower piston sleeve upper end-face and the top wall of the middle pump body. The utility model has simple structure, good using effect, not only good pressure-stabilizing performance but also potent brake performance. The utility model has good performance of social and economic benefit.

Description

Two-stage electromagnetic booster braking general pump of three-inlet and multi-exit
One. technical field: the utility model relates to a kind of automobile brake pump, particularly relates to a kind of two-stage electromagnetic booster braking general pump of three-inlet and multi-exit.
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, causes and the one of the main reasons of traffic accident is that the car brakeing effect is improper.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 CN2529798Y, patent No. 02208553.X) a kind of " the overlapping tandem automobile brake general pump of two-chamber " disclosed, it comprises: upper valve body, middle valve body, following valve body have upper piston assembly, upper piston and are positioned at the coaxial tappet in its upper end in upper valve body; Outer rim has an annular groove in the lower end of described upper piston; Rear wheel brake valve member and lower piston are arranged in middle shell, front-wheel brake valve door assembly is arranged in lower house; The gas relay piston is arranged outside described lower piston.The utility model has increased the width of upper piston lower end outer rim groove, has both made under brake spacing situation devious, can guarantee that also upper piston does not hinder the passage of rear wheel brake valve, has guaranteed to stop earlier trailing wheel, and the rear brake front-wheel makes brake that dynamics and reliable be arranged; Cushion under the tappet makes the transmission of brake weight softer, makes brake more steady; Two seal rings are set outside relay piston make its more balance of sliding, can not make brake flexibly steadily because of the bigger resistance of unbalance generation.But this technology does not still solve problems such as the plate bounce pressure that collapses is excessive, and piston stroke is long, operation is uncomfortable.
Three. the utility model content:
The purpose of this utility model: overcome the defective of prior art, a kind of simple in structure, result of use good, existing good voltage regulation result has potent braking effect again two-stage electromagnetic booster braking general pump of three-inlet and multi-exit is provided.
The technical solution of the utility model: a kind of two-stage electromagnetic booster braking general pump of three-inlet and multi-exit, contain pump cover, upper pump casing, middle pump body and lower pump body, wherein be provided with push rod in pump cover and the upper pump casing, tip-lever support, the voltage stabilizing rubber pad, upper piston and upper reset spring, be provided with valve in the middle pump body, last valve retracing spring, last valve plug, lower piston and following retracing spring, also be provided with back braking induction opening and air gate on the middle pump body, described back braking induction opening and air gate are communicated with by last valve or disconnect, be provided with down valve in the lower pump body, following valve retracing spring and following valve plug, braking induction opening and air gate before also being provided with on the lower pump body, described preceding braking induction opening and air gate are by valve connection or disconnection down, 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 middle pump body valve give vent to anger chamber respectively with back braking air gate, upper piston lower surface and upper pump casing diapire between sealed chamber, lower piston or/and lower piston puts end face is communicated with sealed chamber between the middle pump body roof.
The braking induction opening is one before described, and air gate is three, and the interval is 90 ° in twos; Described back braking induction opening is one, and air gate is three, and the interval is 90 ° in twos.
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 pump housing contacted end face in upper, middle and lower is provided with seal ring.
Be provided with dust protecting cap between described push rod and the pump cover, described lower pump body lower ending opening place is provided with dust-proof cushion.
The beneficial effects of the utility model:
1. the utlity model 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 utlity model has good voltage regulation result, operate more comfortable, closed electromagnetic valve, when last valve is opened, air pressure enters voltage stabilizing air chamber (sealed chamber that forms between upper piston lower surface and the upper pump casing diapire is the voltage stabilizing air chamber) on the one hand, form back pressure, it is flexible to strengthen the voltage stabilizing rubber pad, forms 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 utility model 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. brake induction opening, three air gates before the utility model is provided with one, the air gate that needs is connected, the N/R air gate stops up, 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 utility model 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 utility model range of use 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 two-stage electromagnetic booster braking general pump of three-inlet and multi-exit;
Fig. 2 is the left view of two-stage electromagnetic booster braking general pump of three-inlet and multi-exit shown in Figure 1;
Fig. 3 is the birds-eye view of two-stage electromagnetic booster braking general pump of three-inlet and multi-exit shown in Figure 1;
Fig. 4 be two-stage electromagnetic booster braking general pump of three-inlet and multi-exit structural representation two;
Fig. 5 is the fundamental diagram of two-stage electromagnetic booster braking general pump of three-inlet and multi-exit.
Five: the specific embodiment:
Embodiment one: referring to Fig. 1, Fig. 2, Fig. 3 and Fig. 5, among the figure, 1-upper piston cover, the 2-dust protecting cap, 3-pump cover, 4-push rod, the 5-tip-lever support, 6-voltage stabilizing rubber pad, 7-pedal mount pad, 8-tip-lever support jump ring, 9-upper piston, 10-upper pump casing, the last valve of 11-is braked induction opening behind the 12-, the 13-middle pump body, 14-lower piston cover, braking induction opening before the 15-lower pump body, 16-, valve under the 17-, valve plug under the 18-, 19-dust-proof cushion, 20-deck circle, braking air gate before the valve plug jump ring under the 21-, 22-, the 23-lower piston, the last valve plug of 24-jump ring is braked air gate behind the 25-, the last valve plug of 26-, 27-air extractor vent, 28-super charge hole.
Two-stage electromagnetic booster braking general pump of three-inlet and multi-exit contains pump cover 3, upper pump casing 10, middle pump body 13 and lower pump body 15, they are fixedly connected sequentially by bolt, wherein be provided with push rod 4 in pump cover 3 and the upper pump casing 10, tip-lever support 5, voltage stabilizing rubber pad 6, upper piston 9 and upper reset spring, between pump cover 3 and the push rod 4 dust ring 2 is installed, be provided with valve 11 in the middle pump body 13, last valve retracing spring, last valve plug 26, lower piston 23 and following retracing spring, also be provided with back braking induction opening 12 and air gate 25 on the middle pump body 13, back braking induction opening 12 and air gate 25 are communicated with by last valve 11 or disconnect, be provided with down valve 17 in the lower pump body 15, following valve retracing spring and following valve plug 18, braking induction opening 16 and air gate 22 before also being provided with on the lower pump body 15, preceding braking induction opening 16 and air gate 22 are by valve 17 connections or disconnection down, upper piston 9 outside faces are the step face of cylinder, its step plane is provided with upper piston cover 1, the inner ring surface of this upper piston cover 1 and the upper step face of cylinder bearing fit of upper piston 9, its outer ring surface and upper pump casing 10 inwalls are fastenedly connected, run through upper pump casing 10 and be provided with super charge hole 28, the inner end in this super charge hole 28 is communicated with by the lower surface of air extractor vent 27 with upper piston cover 1, its outer end is communicated with (the concrete connection structure of not drawing among the figure) with back braking air gate 25 after by two-position three way magnetic valve, two-position three way magnetic valve with control power supply and connect; Lower piston 23 outside faces are the step face of cylinder, and its step plane is provided with lower piston cover 14, the inner ring surface of this lower piston cover 14 and the lower step face of cylinder bearing fit of lower piston 23, its outer ring surface and middle pump body 13 inwall bearing fits; Go up in the middle pump body 13 valve 11 give vent to anger chamber respectively with back braking air gate 25, upper piston 9 lower surfaces and upper pump casing 10 diapires between sealed chamber's (being pressure stabilizing chamber), lower piston 23 or/and lower piston overlaps 14 upper surfaces is communicated with sealed chamber between middle pump body 13 roofs.
In the present embodiment, preceding braking induction opening 16 is one, and air gate 22 is three, and the interval is 90 ° in twos; Back braking induction opening 12 is one, and air gate 25 is three, and the interval is 90 ° in twos.During use, stop up or open part back braking air gate 25 and preceding braking air gate 22 as required.
In addition, super charge hole 28 can be separately be communicated with braking air gate 25 after, also can be communicated with the tracheae braked between air gate 25 and the rear braking subpump after by a threeway tube head.And all bearing fit faces are provided with seal ring; The pump housing contacted end face in upper, middle and lower is provided with seal ring.
Its groundwork is in proper order: column plate is hinged on the column plate mount pad 7, bar 4 bears down on one downwards, push rod 4 is by tip-lever support 5, voltage stabilizing rubber pad 6 promotes upper piston 9 and moves downward, and then open valve, back braking induction opening 12 and air gate 25 are communicated with, pressurized air enters rear braking subpump and carries out the trailing wheel braking, upper piston 9 continues to move downward, make lower piston 23 open down valve 17, preceding braking induction opening 16 and air gate 22 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 9, lower piston 23 resets, last valve 11, following valve 17 is respectively at last valve retracing spring, close the connection of braking air inlet pipe 12 and freeing pipe 25 after disconnecting, and the connection of moving air inlet pipe 16 and freeing pipe 22 before after disconnecting under the following valve action of reset spring.
When two-position three way magnetic valve is opened, air pressure enters supercharging air chamber (glancing impact, upper piston 9 moves downward, upper piston overlaps the closed chamber that forms between the step surface of 1 lower surface and upper piston 9 and is the supercharging air chamber), reduce the bounce pressure of upper piston 9, the retractility of dwindling voltage stabilizing rubber pad 6, pedal during with stroke upper piston 9 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 enters voltage stabilizing air chamber (sealed chamber that forms between upper piston 9 lower surfaces and upper pump casing 10 diapires is the voltage stabilizing air chamber) on the one hand, forms back pressure, it is flexible to increase voltage stabilizing rubber pad 6, forms good voltage regulation result; Air pressure enters lower piston 23 on the other hand or/and lower piston overlaps the sealed chamber between 14 upper surfaces and middle pump body 13 roofs, promotes lower piston 23 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 utility model 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 that Changchun liberates serial pneumatic brake type.
Embodiment two: referring to Fig. 4, 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: middle pump body 29 is fabricate blocks of upper pump casing and middle pump body among the embodiment one, the concrete structure of lower pump body 31, lower piston 33, lower piston cover 30, following valve plug 32, dust-proof cushion 34, lower piston 36 is different with corresponding component among the embodiment one, and following valve plug 32 adopts bottom end cover 33 to be fixed on the lower pump body 31, and dust-proof cushion 34 is fixed on the bottom end cover by rivet 35, the structure difference, but principle of work is identical.Present embodiment is applicable to that Qingdao liberates serial pneumatic brake type.

Claims (5)

1. two-stage electromagnetic booster braking general pump of three-inlet and multi-exit, contain pump cover, upper pump casing, middle pump body and lower pump body, wherein be provided with push rod in pump cover and the upper pump casing, tip-lever support, the voltage stabilizing rubber pad, upper piston and upper reset spring, be provided with valve in the middle pump body, last valve retracing spring, last valve plug, lower piston and following retracing spring, also be provided with back braking induction opening and air gate on the middle pump body, described back braking induction opening and air gate are communicated with by last valve or disconnect, be provided with down valve in the lower pump body, following valve retracing spring and following valve plug, braking induction opening and air gate before also being provided with on the lower pump body, described preceding braking induction opening and air gate are by valve connection or disconnection down, 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 middle pump body valve give vent to anger chamber respectively with back braking air gate, upper piston lower surface and upper pump casing diapire between sealed chamber, lower piston or/and lower piston puts end face is communicated with sealed chamber between the middle pump body roof.
2. according to the described two-stage electromagnetic booster braking general pump of three-inlet and multi-exit of claim 1, it is characterized in that: the braking induction opening is one before described, and air gate is three, and the interval is 90 ° in twos; Described back braking induction opening is one, and air gate is three, and the interval is 90 ° in twos.
3. according to the described two-stage electromagnetic booster braking general pump of three-inlet and multi-exit 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 two-stage electromagnetic booster braking general pump of three-inlet and multi-exit of claim 1, it is characterized in that: described bearing fit face is provided with seal ring; The pump housing contacted end face in upper, middle and lower is provided with seal ring.
5. according to the described two-stage electromagnetic booster braking general pump of three-inlet and multi-exit of claim 1, it is characterized in that: be provided with dust protecting cap between described push rod and the pump cover, described lower pump body lower ending opening place is provided with dust-proof cushion.
CN 200620130020 2006-09-30 2006-09-30 Single-inlet multi-outlet type two-stage electromagnetic pressurization braking general pump Expired - Lifetime CN200960917Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200620130020 CN200960917Y (en) 2006-09-30 2006-09-30 Single-inlet multi-outlet type two-stage electromagnetic pressurization braking general pump

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Application Number Priority Date Filing Date Title
CN 200620130020 CN200960917Y (en) 2006-09-30 2006-09-30 Single-inlet multi-outlet type two-stage electromagnetic pressurization braking general pump

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CN200960917Y true CN200960917Y (en) 2007-10-17

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100436214C (en) * 2006-09-30 2008-11-26 田青锋 Two-stage electromagnetic booster braking general pump of three-inlet and multi-exit
CN101837774A (en) * 2010-05-31 2010-09-22 河南昌通科技有限公司 Two-stage cadence braking master valve (type V)
CN102019922A (en) * 2010-05-31 2011-04-20 河南昌通科技有限公司 Two-stage point brake master valve

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100436214C (en) * 2006-09-30 2008-11-26 田青锋 Two-stage electromagnetic booster braking general pump of three-inlet and multi-exit
CN101837774A (en) * 2010-05-31 2010-09-22 河南昌通科技有限公司 Two-stage cadence braking master valve (type V)
CN102019922A (en) * 2010-05-31 2011-04-20 河南昌通科技有限公司 Two-stage point brake master valve
CN102019922B (en) * 2010-05-31 2013-05-22 昌通科技有限公司 Two-stage point brake master valve
CN101837774B (en) * 2010-05-31 2013-06-05 昌通科技有限公司 Two-stage cadence braking master valve (type V)

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GR01 Patent grant
C25 Abandonment of patent right or utility model to avoid double patenting
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Effective date of abandoning: 20060930