CN208198390U - A kind of vacuum booster valve body - Google Patents

Abstract

The utility model relates to auto parts and components, in particular to a kind of vacuum booster valve body, solve the problems, such as that valve body mechanical strength is bad, its key points of the technical solution are that: including first connecting portion and with the integrally formed second connecting portion of first connecting portion, the first connecting portion includes the first connection ring being connected in second connecting portion and the second connection ring with the stepped connection of the first connection ring, second connection ring includes the first bending ring of oriented first connection ring circumferentially extending, the arc ring that the second bending ring being vertically connected on the first bending ring and inclination are connected on the second bending ring, the outer edge of the arc ring is connected with the flange parallel with the second bending ring, the flange is formed with the conjunction of arc collar and abuts chamber, improve the mechanical strength of valve body.

Description

A kind of vacuum booster valve body

Technical field

The utility model relates to auto parts and components, in particular to a kind of vacuum booster valve body.

Background technique

Vacuum booster is to increase the component that driver is applied to power on pedal using vacuum (negative pressure).Valve body is vacuum Important part in booster is designed by structure, in medium design air channel, is in contact with it/disconnects by valve bowl to control The quality of the vacuum of chamber before and after vacuum booster processed, vacuum booster plays conclusive work for the sensitivity of automobile brake With.

Such as a kind of improved vacuum booster valve for the patent disclosure that Authorization Notice No. is CN206926629U, including valve The inside of body and valve bowl, the valve body passes through air channel one, air channel two, air channel three and air channel four and ante-chamber and back cavity phase Connection, the valve body are internally provided with valve bowl, and the valve bowl is connect by vacuum valve with spring is responded, and the response spring is logical It crosses spring base to connect with operating stick, the operating stick is connect by pin with brake pedal, and the valve body is internally provided with pressure Block and epithelium plate, and briquetting is connect by bar of contributing with master cylinder, also can when internal gas moment can be made to empty, then being vacuumized Moment pumps, and makes sensitivity with higher in Motor Vehicle Braking Procedure.However since general valve body is made of phenolic resin, machine Tool intensity is bad.

Utility model content

The purpose of the utility model is to provide a kind of vacuum booster valve bodies, improve the mechanical strength of valve body.

The above-mentioned technical purpose of the utility model has the technical scheme that

A kind of vacuum booster valve body, including first connecting portion and connect with first connecting portion integrally formed second Portion, the first connecting portion include the first connection ring being connected in second connecting portion and stepped with the first connection ring Second connection ring of connection, second connection ring include the first bending ring of oriented first connection ring circumferentially extending, vertically connect It connects the second bending ring on the first bending ring and tilts the arc ring being connected on the second bending ring, outside the arc ring Edge is connected with the flange parallel with the second bending ring, and the flange is formed with the conjunction of arc collar and abuts chamber.

By using above-mentioned technical proposal, first connecting portion is designed as to stepped the first connection ring and the second connection Ring, and the second connection ring includes the first bending ring, the second bending ring, arc ring and the flange of bending, is made outside the second connection ring Irregular protrusion is presented in shape, compared to the valve body of single radian, under the premise of not increasing wall thickness, has higher machinery Intensity；Meanwhile being formed by arc ring and flange and abutting chamber, to improve the stabilization of valve body in vacuum booster operational process Property.

Preferably, the arc ring includes the extrados of the second bending ring of arc connection and flange and vertically connects The inner plane of second bending ring and flange, the inner plane are parallel with the axis of first connecting portion.

By using above-mentioned technical proposal, the design of extrados and inner plane increases the thickness of arc ring, further makes Its intensity increases, and in valve body operational process, arc ring pressure-bearing is larger, and inner plane is enable to remain the shape parallel with axis State enables flange to abut always with other parts, to improve the stability of valve body in vacuum booster operational process.

Preferably, first connection ring includes the inclined-plane ring that inclination is connected in second connecting portion and is connected to tiltedly The third of face ring outer bends ring.

By using above-mentioned technical proposal, the cooperation of inclined-plane ring and third bending ring is able to ascend the structure of the first connection ring Intensity.

Preferably, the appearance of the inclined-plane ring towards the axis direction of first connecting portion it is arc-shaped recess be formed with it is recessed Portion.

By using above-mentioned technical proposal, the design of recess portion can save material while can reduce stress concentration phenomenon, Also it is avoided that difficult forming caused by inclined-plane ring thickness is excessive.

Preferably, being additionally provided with reinforcing ring between the third bending ring and the first bending ring.

By using above-mentioned technical proposal, bends between ring and the first bending ring positioned at third since there are dog-ears, hold Press larger, and stress is concentrated obvious, and the design of reinforcing ring can be improved the structural strength out.

Preferably, the first connecting portion is formed with connection second connecting portion and abuts the conical internal cavity of chamber, the cone It is circumferentially equidistant in shape inner cavity to be provided with several reinforcing ribs.

By using above-mentioned technical proposal, the design of reinforcing rib can further increase the structural strength of first connecting portion, It is set to be not easy deformation.

Preferably, the second connecting portion includes to position in outer ring and the positioning being coaxially disposed with positioning outer ring Ring offers location hole on the positioning ring, and the location hole includes first positioning hole and second location hole, and described first is fixed The aperture in position hole is greater than second location hole, is formed with air passing hole between the first positioning hole and second location hole.

By using above-mentioned technical proposal, opening up for air passing hole can be for gas to pass through, and gas is made to enter positioning inner ring, To make air-flow be uniformly distributed and in second connecting portion, avoid generating negative pressure at positioning inner ring, positioning ring interior air-flow is improved Stability.

Preferably, one end of the positioning inner ring has convexed to form positioning convex platform to conical internal cavity direction.

By using above-mentioned technical proposal, the design of positioning convex platform can be abutted for push rod to be positioned, and can thicken second Thickness between interconnecting piece and first connecting portion improves bonding strength between the two.

In conclusion the utility model has the following beneficial effects:

The utility model by the first stepped connection ring, first bending ring, second bending ring, arc ring, flange, The design of reinforcing ring and reinforcing rib makes first connecting portion ring shape that irregular protrusion be presented, in the premise for not increasing wall thickness Under, make valve body that there is higher mechanical strength.

Detailed description of the invention

Fig. 1 is a kind of overall structure diagram of vacuum booster valve body；

Fig. 2 is a kind of the schematic diagram of the section structure of vacuum booster valve body.

In figure, 1, second connecting portion；11, outer ring is positioned；12, inner ring is positioned；121, positioning convex platform；122, the first positioning Hole；123, second location hole；124, air passing hole；13, gas chamber；2, first connecting portion；21, the first connection ring；211, inclined-plane ring； 2111, recess portion；212, third bends ring；22, the second connection ring；221, the first bending ring；222, the second bending ring；223, arc Ring；2231, extrados；2232, inner plane；23, reinforcing ring；24, flange；25, chamber is abutted；26, conical internal cavity；27, reinforcing rib.

Specific embodiment

The utility model is described in further detail below in conjunction with attached drawing.

Referring to Fig. 1 and Fig. 2, a kind of vacuum booster valve body, including towards the first connecting portion 2 of master cylinder push rod and court To the second connecting portion 1 of booster push rod, first connecting portion 2 and second connecting portion 1 are integrally formed and are coaxially disposed.

Referring to Fig. 1 and Fig. 2, first connecting portion 2 is connect in miner diameter end with second connecting portion 1 horn-like comprising has company Connect the first connection ring 21 in second connecting portion 1 and the second connection ring 22 with the stepped connection of the first connection ring 21. First connection ring 21 includes the inclined-plane ring 211 and put down that reversed 2 axis of first connecting portion inclination is connected in second connecting portion 1 2 axis of row first connecting portion is connected to the third bending ring 212 of 211 outer of inclined-plane ring.The appearance of inclined-plane ring 211 connects towards first The axis direction of socket part 2 is recessed, and is formed with the arc-shaped recess portion 2111 being wound around on inclined-plane ring 211, recess portion 2111 and inclined-plane ring 211 coaxial arrangements.

Referring to Fig. 1 and Fig. 2, the second connection ring 22 includes to bend ring with third bending ring 212 connected vertically first 221, ring 222 is bent with the first bending ring 221 connected vertically second and tilt the arc being connected on the second bending ring 222 Ring 223.First bending reversed 2 axis direction of first connecting portion of ring 221 is connected on third bending ring 212, and the first bending ring 221 and third bending ring 212 junction form thicken third bending ring 212 reinforcing ring 23.The end of second bending ring 222 Face and the axis of first connecting portion 2 are arranged in parallel.The outer edge of arc ring 223 is connected with that ring 222 is parallel turns over the second bending Side 24.Arc ring 223 includes that arc-shaped transition second bends the extrados 2231 of ring 222 and 24 outer surface of flange and vertically connects The inner plane 2232 of 24 inner surface of the second bending ring 222 and flange is connect, inner plane 2232 is vertical with the axis of first connecting portion 2. Flange 24 has been enclosed with arc ring 223 and has abutted chamber 25.The inside of first connection ring 21 and the second connection ring 22 is enclosed The conical internal cavity 26 for having and abutting the connection of chamber 25.First connection ring 21 and the second connection ring 22 are located on 26 inner wall of conical internal cavity also It is placed equidistant with the reinforcing rib 27 of several arcs.Connection conical internal cavity 26 and second is also provided between adjacent two reinforcing rib 27 to connect The through-hole (not shown) of socket part 1.

Referring to Fig. 1 and Fig. 2, second connecting portion 1 include the positioning outer ring 11 being in the form of a column and with positioning outer ring 11 it is coaxial The positioning inner ring 12 for being arranged and being threaded through inside positioning outer ring 11.2 air chambers 13 are symmetrically offered on positioning outer ring 11.In positioning One end of ring 12 towards conical internal cavity 26 has convexed to form positioning convex platform 121.The axial location of positioning inner ring 12 offers connection The location hole of second connecting portion 1 and conical cavity.Location hole includes first positioning hole 122 and second location hole 123.First is fixed The aperture of position hole 122 and the coaxial arrangement of second location hole 123 and first positioning hole 122 is greater than second location hole 123.Second connection Portion 1 offers the air passing hole 124 of connection gas chamber 13 and location hole between first positioning hole 122 and second location hole 123.

In use, being vacuumized by engine to valve inner, the cavity of first connecting portion 2 and second connecting portion 1 is Vacuum.Brake pedal is stepped at this time, and booster push rod, which is pushed into certain stroke, opens vacuum valve, and atmosphere moment enters the second connection Portion 1, first connecting portion 2 and second connecting portion 1 are isolated at this time；Because of the relationship of atmospheric pressure, master cylinder push rod advances, and plays power-assisted Effect, master cylinder push rod is interior to establish the required hydraulic coupling of braking, and when loosening the brake, spring restores booster push rod to first Beginning state penetrates through first connecting portion 2 and second connecting portion 1 by location hole, under the vacuumizing of engine, first connecting portion 2 and second connecting portion 1 again be simultaneously filled with vacuum, for next time braking prepare.

This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability Field technique personnel can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but As long as all by the protection of Patent Law in the scope of the claims of the utility model.

Claims (8)

1. a kind of vacuum booster valve body, which is characterized in that including first connecting portion (2) and with first connecting portion (2) one Body formed second connecting portion (1), the first connecting portion (2) include the first connection being connected on second connecting portion (1) Ring (21) and the second connection ring (22) with the first connection ring (21) stepped connection, second connection ring (22) include First bending ring (221) of oriented first connection ring (21) circumferentially extending, second be vertically connected on the first bending ring (221) The arc ring (223) that bending ring (222) and inclination are connected on the second bending ring (222), the outside of the arc ring (223) Along be connected with second bending ring (222) parallel flange (24), the flange (24) and arc ring (223) be enclosed to Connect chamber (25).

2. a kind of vacuum booster valve body according to claim 1, which is characterized in that the arc ring (223) includes There is the second bending ring (222) of extrados (2231) and vertical connection of the second bending ring (222) of arc connection and flange (24) With the inner plane (2232) of flange (24), the inner plane (2232) is parallel with the axis of first connecting portion (2).

3. a kind of vacuum booster valve body according to claim 1, which is characterized in that the first connection ring (21) packet Include the inclined-plane ring (211) and the third bending ring for being connected to inclined-plane ring (211) outer that inclination is connected on second connecting portion (1) (212).

4. a kind of vacuum booster valve body according to claim 3, which is characterized in that outside the inclined-plane ring (211) The arc-shaped recess of the axis direction of surface to first connecting portion (2) is formed with recess portion (2111).

5. a kind of vacuum booster valve body according to claim 3, which is characterized in that the third bends ring (212) And first bending ring (221) between be additionally provided with reinforcing ring (23).

6. a kind of vacuum booster valve body according to claim 1, which is characterized in that first connecting portion (2) shape It is circumferentially equidistant in the conical internal cavity (26) to set at the conical internal cavity (26) for having connection second connecting portion (1) and abutting chamber (25) It is equipped with several reinforcing ribs (27).

7. a kind of vacuum booster valve body according to claim 6, which is characterized in that second connecting portion (1) packet Positioning outer ring (11) and the positioning inner ring (12) with positioning outer ring (11) coaxial arrangement are included, it is fixed to offer on the positioning ring Position hole, the location hole includes first positioning hole (122) and second location hole (123), the hole of the first positioning hole (122) Diameter is greater than second location hole (123), offers air passing hole between the first positioning hole (122) and second location hole (123) (124).

8. a kind of vacuum booster valve body according to claim 7, which is characterized in that the one of positioning inner ring (12) It holds to conical internal cavity (26) direction and has convexed to form positioning convex platform (121).