CN204956463U - Proportional valve of motorcycle butterfly stopper - Google Patents

Abstract

The utility model discloses a proportional valve of motorcycle butterfly stopper, including valve body and piston rod, oil through, piston chamber, inlet port and oil outlet are seted up to the valve body, the oil through link up the valve body, the middle section and the piston chamber front end intercommunication of oil through, and piston chamber rear end is sealed, the piston rod slides and sets up at the piston intracavity, and the piston rod front end stretches into the oil through middle section, still forms seal structure between piston rod front end and the piston chamber front end, forms oily passageway between piston rod rear end and the piston chamber rear end, and oily passageway intercommunication is crossed through this to inlet port and oil outlet, piston intracavity wall is hugged closely to an installation spacer on inlet port and the piston rod of crossing oily passageway intercommunication department the place ahead, the spacer outside, and the spacer is along with piston rod reciprocating axially, crosses and sets up an elastic component in the oily passageway, and elastic component one end is supported at the inner wall of piston chamber rear end and the other end supports on the spacer. The utility model discloses the front brake is adjusted with the linkage of rear brake brake force size, and better allocation system power promotes the brake effect.

Description

A kind of apportioning valve of motor bike butterfly drg

Technical field

The utility model relates to motorcycle hydraulic brake technical field, particularly a kind of apportioning valve of motor bike butterfly drg.

Background technology

Motor bike is driven by spark ignition engine, by two-wheeled or the three-wheel vehicle of bar handle front-wheel steering, has light and flexible, travel feature rapidly, be widely used in patrol, passenger and freight transportation etc., is also used as sports movement apparatus.

Motor bike butterfly drg is the one of motorcycle brake system, motor bike butterfly drg in the market forms primarily of front clamp, rear clamp, apportioning valve, left master cylinder and right master cylinder, left master cylinder and right master cylinder be clamp and rear clamp pump oil forward, the piston of clamp before and after hydraulic oil promotes, and then promote brake facing realization braking, apportioning valve is connected on the conveying oil circuit of hydraulic oil, for regulating the hydraulic oil ratio of left master cylinder or right master cylinder;

Existing apportioning valve can only realize the adjustment of a road hydraulic oil, general left master cylinder access apportioning valve, apportioning valve then connects front clamp and rear clamp, right master cylinder connects front clamp, adopt the drg of this apportioning valve can reach one-sided front and back linkage braking, namely before, clamp are braked jointly by left master cylinder and right master cylinder, rear clamp are braked by left master cylinder, the hydraulic oil ratio of in fact just distributing left master cylinder clamp and rear clamp forward of this apportioning valve, and fail to realize the brake-force control of right master cylinder to front clamp, under the new standard of Europe, discharge capacity will realize interlock brake at the motor bike of below 125CC, need better to link braking quality, particularly need to carry out interlock adjustment to the oil pressure (i.e. braking force) of left master cylinder and right master cylinder, the apportioning valve that existing one-sided oil pressure regulates cannot regulate right master cylinder oil pressure, the brake pressure ratio of front and back clamp can not be distributed preferably, it is large still to there is braking distance in front clamp, very fast locking, single-wheel sudden stop problem, it causes braking effect poor, the service life of drg is low.

In view of this, the present inventor's comparative example valve improves, and especial manufacture goes out a kind of apportioning valve that can realize left master cylinder and right master cylinder oil pressure interlock adjustment, and this case produces thus.

Utility model content

The purpose of this utility model is the apportioning valve providing a kind of motor bike butterfly drg, its interlock realizing front brake and rear brake braking force size regulates, better assignment system power, avoids braking the too fast problem causing locking, single-wheel sudden stop, promotes braking effect.

To achieve these goals, the technical solution of the utility model is as follows:

An apportioning valve for motor bike butterfly drg, comprises valve body and piston rod, and valve body offers an oil through, a plunger shaft, a fuel feed hole and an oil outlet;

The through valve body of described oil through, the stage casing of oil through is communicated with plunger shaft front end, plunger shaft back-end sealing;

Piston rod is can mode be arranged in plunger shaft in axial sliding, oil through stage casing is stretched in piston rod front end, a hermetically-sealed construction is also formed between piston rod front end and plunger shaft front end, form one between piston rod rear end and plunger shaft rear end and cross oily passage, fuel feed hole and oil outlet cross oily channel connection by this;

The piston rod in fuel feed hole and excessively front, oily channel connection place installs a spacer, be close to plunger shaft inwall outside spacer, spacer can slide axially with piston rod, crosses in oily passage and arranges an elastic parts, elastic parts one end is against on the inwall of plunger shaft rear end, and the elastic parts other end is against on spacer.

Described plunger shaft front end forms annular boss, annular boss offers interior annular groove, in interior annular groove, seal ring is installed, hermetically-sealed construction is formed by sealing circle between piston rod front end and plunger shaft front end, on described piston rod, corresponding annular boss forms spacing projection seat, is deviate from and limited piston bar front end shutoff oil through stage casing with the limited piston bar that coordinates of spacing projection seat by annular boss from plunger shaft.

Described plunger shaft rear end after-opening, opening part installs one by the cover of dust of plunger shaft back-end sealing.

Described plunger shaft rear end also forms annular boss, and this annular boss offers interior annular groove, installs seal ring, form hermetically-sealed construction between piston rod rear end and plunger shaft front end by sealing circle in interior annular groove; Described elastic parts one end is against on the annular boss of plunger shaft rear end.

Ringwise, spacer is placed on piston rod described spacer.

Described elastic parts is spring.

After adopting such scheme, principle of work of the present utility model is: a master cylinder is connected oil through two ends with clamp respectively by oil pipe, and another master cylinder is then connected with fuel feed hole, and another clamp are connected with oil outlet;

Under non-brake state, the hydraulic oil of a master cylinder passes through from oil through, and the hydraulic oil of another master cylinder passes through from fuel feed hole, excessively oily passage and oil outlet;

Under braking mode, the hydraulic pressure of oil through continues to increase, when this hydraulic pressure is to a certain size, hydraulic oil will promote piston rod and be slided to plunger shaft rear end by plunger shaft front end, be positioned at fuel feed hole also to slide with piston rod with the spacer in the front crossing oily channel connection place, spacer arrives and is positioned at fuel feed hole with when crossing oily channel connection place, it is by fuel feed hole and cross oily passageway break (shutoff), a master cylinder braking force can continue to increase, and the braking force of another master cylinder no longer increases, after end of braking, unclamp two master cylinder, piston rod is popped into position by elastic parts.

The beneficial effects of the utility model are: the utility model accesses front and back master cylinder (i.e. left master cylinder and right master cylinder simultaneously, or Front brake master cylinder and rear braking master cylinder), by another road binders road of fluid control of a road binders pump, when realizing braking, the interlock of oil pressure size regulates, the braking force of the front clamp of better distribution and rear clamp, makes braking procedure more level and smooth, prevents the potential safety hazard that the quick locking of clamp and single-wheel sudden stop bring, promote braking effect, extend drg service life.

Below in conjunction with the drawings and specific embodiments, the utility model is described further.

Accompanying drawing explanation

Fig. 1 is structural representation of the present utility model.

Label declaration

Valve body 1, oil through 11, fuel feed hole 12, oil outlet 13, plunger shaft 14, annular boss 141, interior annular groove 142, crosses oily passage 143, piston rod 2, piston rod front end 21, piston rod rear end 22, spacing projection seat 23, the outer groove 24 of annular, spacer 3, elastic parts 4, seal ring 5, cover of dust 6.

Detailed description of the invention

As shown in Figure 1, the apportioning valve of a kind of motor bike butterfly drg that the utility model discloses, comprise valve body 1 and piston rod 2, valve body 1 offers oil through 11, plunger shaft 14, fuel feed hole 12 and an oil outlet 13;

The through valve body 1 of oil through 11, the stage casing of oil through 11 is communicated with plunger shaft 14 front end, plunger shaft 14 open rearward end, and opening part installs one by the cover of dust 6 of plunger shaft 14 back-end sealing;

Piston rod 2 is can mode be arranged in plunger shaft 14 in axial sliding, oil through 11 stage casing is stretched in piston rod front end 21, plunger shaft 14 front end forms annular boss 141, annular boss 141 is offered interior annular groove 142, in interior annular groove 142, seal ring 5 is installed, hermetically-sealed construction is formed by sealing circle 5 between piston rod front end 21 and plunger shaft 14 front end, on piston rod 2, corresponding annular boss 141 forms spacing projection seat 23, deviate from and limited piston bar front end 21 shutoff oil through 11 stage casing from plunger shaft 14 with the limited piston bar 2 that coordinates of spacing projection seat 23 by annular boss 141, then form one between piston rod rear end 22 and plunger shaft 14 rear end and cross oily passage 143, fuel feed hole 12 and oil outlet 13 are crossed oily passage 143 be communicated with by these,

The piston rod 2 in fuel feed hole 12 and excessively oily passage 143 connectivity part front installs a spacer 3, plunger shaft 14 inwall is close to outside spacer 3, spacer 3 slides axially with piston rod 2, cross in oily passage 143 and an elastic parts 4 is set, elastic parts 4 one end is against on the inwall of plunger shaft rear end, elastic parts 4 other end is against on spacer 3, and elastic parts 4 is preferably spring.

Further, plunger shaft 14 rear end also forms annular boss 141, the outer groove 24 of annular is offered in piston rod rear end 322, in the outer groove 24 of annular, seal ring 5 is installed, form hermetically-sealed construction by annular boss 141 with coordinating of sealing circle 5 between piston rod rear end 32 with plunger shaft 14 rear end, this hermetically-sealed construction prevents hydraulic oil from infiltrating the cover of dust of opening part from plunger shaft 14; Described elastic parts 4 one end is against on the annular boss 141 of plunger shaft rear end.

Preferably, ringwise, spacer 3 is placed on piston rod 2 spacer 3, and the spacer 3 of annular more can be stablized and does axially reciprocating with piston rod 2.

When the utility model uses, rear braking is provided with left master cylinder, right master cylinder provides front braking to be example, left master cylinder is connected oil through 11 two ends with rear clamp respectively by oil pipe, right master cylinder is then connected with fuel feed hole 12, front clamp are connected with oil outlet 13, when starting to brake, the hydraulic oil of left master cylinder passes through from oil through 11, the hydraulic oil of right master cylinder is successively from fuel feed hole 12, cross oily passage 143 and oil outlet 13 passes through, when the oil pressure of oil through 11 is increased to a certain size, promotion piston rod 2 is advanced to plunger shaft rear end 22 by plunger shaft front end 21 by hydraulic oil, be positioned at fuel feed hole 12 also to advance with piston rod with the spacer 3 in the front crossing oily passage 143 connectivity part, spacer 3 arrives and is positioned at fuel feed hole 12 with when crossing oily passage 143 connectivity part, fuel feed hole 12 and the oily passage 143 of mistake cut off by it, the braking force of right master cylinder no longer increases, and left master cylinder braking force can continue to increase, after end of braking, unclamp left master cylinder and right master cylinder, piston rod 2 is popped into position by elastic parts 4.

In braking procedure, left master cylinder realizes rear brake, when after left master cylinder, braking acquires a certain degree, the adjustment right master cylinder oil circuit of passing ratio valve is blocked (namely fuel feed hole 12 cuts off with the oily passage 143 of mistake), thus clamp can not continue pressurization, prevent snap catch, the single-wheel sudden stop situation avoiding the quick locking of front clamp and the Exploration on Train Operation Safety brought thereof, make braking procedure more steadily smooth and easy.

These are only specific embodiment of the utility model, the restriction not to protection domain of the present utility model.All equivalent variations done according to the mentality of designing of this case, all fall into the protection domain of this case.

Claims (6)

1. an apportioning valve for motor bike butterfly drg, is characterized in that: comprise valve body and piston rod, and valve body offers an oil through, a plunger shaft, a fuel feed hole and an oil outlet;

The through valve body of described oil through, the stage casing of oil through is communicated with plunger shaft front end, plunger shaft back-end sealing;

Piston rod is can mode be arranged in plunger shaft in axial sliding, oil through stage casing is stretched in piston rod front end, a hermetically-sealed construction is also formed between piston rod front end and plunger shaft front end, form one between piston rod rear end and plunger shaft rear end and cross oily passage, fuel feed hole and oil outlet cross oily channel connection by this;

The piston rod in fuel feed hole and excessively front, oily channel connection place installs a spacer, be close to plunger shaft inwall outside spacer, spacer can slide axially with piston rod, crosses in oily passage and arranges an elastic parts, elastic parts one end is against on the inwall of plunger shaft rear end, and the elastic parts other end is against on spacer.

2. the apportioning valve of a kind of motor bike butterfly drg as claimed in claim 1, it is characterized in that: described plunger shaft front end forms annular boss, annular boss offers interior annular groove, in interior annular groove, seal ring is installed, hermetically-sealed construction is formed by sealing circle between piston rod front end and plunger shaft front end, on described piston rod, corresponding annular boss forms spacing projection seat, is deviate from and limited piston bar front end shutoff oil through stage casing with the limited piston bar that coordinates of spacing projection seat by annular boss from plunger shaft.

3. the apportioning valve of a kind of motor bike butterfly drg as claimed in claim 1, is characterized in that: described plunger shaft rear end after-opening, and opening part installs one by the cover of dust of plunger shaft back-end sealing.

4. the apportioning valve of a kind of motor bike butterfly drg as claimed in claim 3, it is characterized in that: described plunger shaft rear end also forms annular boss, this annular boss offers interior annular groove, in interior annular groove, seal ring is installed, between piston rod rear end and plunger shaft front end, forms hermetically-sealed construction by sealing circle; Described elastic parts one end is against on the annular boss of plunger shaft rear end.

5. the apportioning valve of a kind of motor bike butterfly drg as claimed in claim 1, is characterized in that: ringwise, spacer is placed on piston rod described spacer.

6. the apportioning valve of a kind of motor bike butterfly drg as claimed in claim 1, is characterized in that: described elastic parts is spring.