CN201026871Y - Braking valve assembly of rear wheel of automobile - Google Patents
Braking valve assembly of rear wheel of automobile Download PDFInfo
- Publication number
- CN201026871Y CN201026871Y CNU2007201067428U CN200720106742U CN201026871Y CN 201026871 Y CN201026871 Y CN 201026871Y CN U2007201067428 U CNU2007201067428 U CN U2007201067428U CN 200720106742 U CN200720106742 U CN 200720106742U CN 201026871 Y CN201026871 Y CN 201026871Y
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- Prior art keywords
- valve
- piston
- groove
- rear wheel
- automobile rear
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- Expired - Fee Related
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Abstract
The utility model discloses a brake valve assembly of the vehicle rear wheel, which comprises an upper valve body, a lower valve seat, a piston and valve components. The piston is arranged in the valve body, and the upper valve and the lower valve seat are sealedly connected. The end surface area of the piston is reduced by the ring-shaped step at the end surface of the piston. When braking, the back pressure of the brake air-pressure is reduced correspondingly, thus the piston can smoothly move downward to push the piston to communicate with the brake pressure of the ventilating hole B and the ventilating hole C to make the brake effect much better. The balance groove on the top surface of the piston is provided with a balance seat which is sleeved with a balance spring. When braking, the brake air-pressure can automatically adjust the balance degree to make the brake soft rather than wild, so the utility model is suitable for the vehicle to run on the icy rode and in the rainy day.
Description
Technical field
The utility model relates to automobile component, specifically is a kind of automobile rear wheel brave valve assembly.
Background technology
Brake valve of car is that the operating air pressure by the brake activation valve assembly promotes piston for brake valve, promotes valve by this piston again and connects the high pressure gas of depositing in the inflator to brake cylinder, thereby reach the braking purpose.
China Patent No. 02205214.3, name is called " improved automobile rear wheel brave valve ", it includes valve body, piston, coil spring, valve seat, valve member, and piston is positioned at valve body, the valve seat upper end is tightly connected with valve body lower end, spring has induction opening A in the upper end of described valve body between piston and valve seat, valve member is positioned at the center of valve seat, at described piston and valve base chamber one air-tightness division board is arranged, the heart is porose therein; One axial adjustment plate is arranged at the center of described piston, pass the centre hole of described division board at this adjust bar, slipper seal between the two has two parallel seal rings in the outer rim of piston; Described valve body induction opening A is positioned at the center of this valve body outer end.Thereby this invention reduces the counter pressure of braking pressure to piston by division board is set, and at piston seal ring is set and has increased piston balancing, and it is worked more reliably.But also there is weak point in this invention, and when the air pressure promotion piston of brake activation valve, piston is directly pushed spool open, causes braking not soft roughly, and the incompatibility vehicle travelled in rainy day or ice and snow road, caused traffic accident probably.
Summary of the invention
It is not soft roughly that the utility model has mainly solved in the prior art brake activation valve braking, make piston occur deficiencies such as stuck not return easily, provide a kind of for this reason and can reduce counter pressure, and the brake activation valve of producing braking is soft not rough, the safety performance height, the automobile rear wheel brave valve assembly that balance quality is good.
Above-mentioned technical matters of the present utility model is mainly solved by following technical proposals: a kind of automobile rear wheel brave valve assembly, include upper valve body, lower valve base, piston and valve member thereof, upper valve body and lower valve base are tightly connected, there is induction opening A the upper end of upper valve body, valve member is positioned at the center of lower valve base, piston is inserted in the upper valve body, this piston one end has thin neck, in the thin neck axis through-hole is arranged, thin neck also is with pull back spring outward, and described piston cavity upper end has a compensating groove, compensating groove to be built-in with T type balance seat, this T type balance seat is with the equilibrium bomb gonosome outward, and the upper end of described compensating groove is provided with limited protruding member; Described piston lower end is provided with ring-shaped step, this ring-shaped step and lower valve base sealed sliding running-fit.One annular groove is arranged on the described compensating groove, and assembly has limited protruding member in this groove, and this limited protruding member is a jump ring, by jump ring T type balance seat is kept off in compensating groove; The ring-shaped step of piston lower surface is with the piston end surface reduction of area, the counter pressure that glancing impact, braking pressure make progress also reduces thereupon, balance seat in the compensating groove of piston upper surface and balance elastic body, make braking pressure energy automatically regulating degree of balance, make braking soft not rough; Described equilibrium bomb gonosome is a balance spring.
Be provided with spring groove in the described piston ring-shaped step.It is coniform that pull back spring is, and the less collar extension of its diameter is connected in this groove, thereby prevent the side force of spring, determines the compression of spring direction, and avoid suppressing mutually because of compression direction is uncertain strength and cause and interfere the premature wear that causes.
Described valve member includes valve port, valve plug, and pull back spring, orienting sleeve and vent B and C, valve plug is positioned at valve port, and orienting sleeve is inserted in its lower end, and pull back spring withstands on the upper end of valve plug lower end step and orienting sleeve respectively; Described orienting sleeve is fixed in the lower valve base by convex positive stop spare.Device has valve member in the described lower valve base, and the bottom of lower valve base is provided with an annular groove, and assembly has convex positive stop spare in the groove, and this convex positive stop spare is a jump ring, by this jump ring valve member is kept off in lower valve base.
There is a sealed groove in the described orienting sleeve outside, and assembly has seal ring in the groove.Adopt such structure, can eliminate the assembly clearance of orienting sleeve and lower valve base, reduce side force, also prevent molecule slide relative between the parts of same material simultaneously and merge mutually, adhesion.
Between described compensating groove bottom and the T type balance seat bottom free gap is arranged.This gap is 1.5mm to 2.0mm, thereby guarantees that braking is soft, not rough.
There are two sealed grooves in the described piston outside, and assembly has seal ring in the groove.Adopt such structure, the balance when having increased piston deceleration has prevented piston-deflection and stuck and have an accident.
Be provided with a sealed groove with the place of matching, the upper valve base ring-shaped step outside in the described lower valve base, assembly has seal ring in the groove.Adopt such structure, can eliminate the assembly clearance of piston and lower valve base, thereby reach sealed sliding running-fit between the two.
The beneficial effects of the utility model are: the ring-shaped step by piston end surface is with the piston end surface reduction of area, glancing impact, the counter pressure that braking pressure makes progress also reduces thereupon, therefore piston just can move down very smoothly and push the braking pressure that valve plug is connected vent B and C open, makes braking effect better.In the compensating groove of the upper surface of piston the balance seat is arranged, the balance seat is with balance spring outward, glancing impact, and braking pressure energy automatically regulating degree of balance makes braking soft not rough, adapts to vehicle and travels in rainy day and ice and snow road.
Description of drawings
Fig. 1 is a topology view of the present utility model.
The specific embodiment
Below by embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment 1: referring to Fig. 1, automobile rear wheel brave valve described in the utility model comprises upper valve body 1, lower valve base 2, piston 3 and valve member thereof etc.In the upper end of described upper valve body 1 induction opening A is arranged, the upper end of the lower end of upper valve body 1 and lower valve base 3 is tightly connected, and the outer end has binding bolt to be fixed.Described piston 3 is positioned at upper valve body 1, there are two ring seal groove 3-7 and 3-8 along circumference in its outside, assembly has the O RunddichtringO in groove 3-7 and the 3-8, there is a compensating groove 3-2 piston 3 upper surfaces, assembly has T type balance seat 3-3 in this compensating groove 3-2, balance seat 3-3 is with balance spring 3-3-1 outward, the gap that there is 1.5mm to 2.0mm the bottom of T type balance seat 3-3 and compensating groove 3-2 bottom surface; Be positioned in the described compensating groove 3-2 on the T type balance seat 3-3 and have an annular recess, assembly has jump ring 3-4 in this groove, also is provided with the step 3-6 that goes in ring on the annular recess; There is a thin neck 3-1 lower end of piston 3, and the thin neck 3-1 of piston is with pull back spring 3-1-2 outward, and wherein the thin neck 3-1 of piston bottom surface to balance seat 3-2 bottom surface has an axis through-hole 3-1-1.The lower surface of piston 3 is provided with retaining gas ring shape step 3-5, and this ring-shaped step 3-5 outside is provided with an annular groove 2-1 with lower valve base 2 contact positions, and assembly has the O RunddichtringO in the groove 2-1.Be provided with an annular groove 3-5-1 between the described piston lower surface ring-shaped step 3-5, be the less collar extension of cone shape its diameter of pull back spring 3-1-2 and be connected among the groove 3-5-1, the collar extension of the other end is nested with on lower valve base 2.
Valve member is positioned at the center of lower valve base 2,5 ends of valve plug, be connected in the valve port 4, orienting sleeve 7 is inserted in its lower end, pull back spring 6 withstands on respectively between the upper end of valve plug 5 lower end steps and orienting sleeve 7, lower valve base 2 bottoms are provided with a ring seal groove 7-1, assembly has the O RunddichtringO in the groove, and orienting sleeve 7 is fixed in the lower valve base 2 by jump ring; Vent B and C are connected to the valve port both sides.There is an annular groove along circumference in described orienting sleeve 7 outsides near place, lower valve base 2 bottoms, assembly jump ring 2-1 in the groove.
At glancing impact, A adds braking pressure at induction opening, and this pressure promotes T type balance seat 3-3, and the thin neck 3-1 of piston end surface promotes valve plug 5 then, opens valve port 4 and makes the conducting between vent B and C of braking gas.The utility model can be widely used on the various serial vehicles, automobile is braked on various road surfaces and under slowing down stablized, and improves traffic safety.
Claims (10)
1. automobile rear wheel brave valve assembly, include upper valve body (1), lower valve base (2), piston (3) and valve member thereof, both are tightly connected upper valve body (1) and lower valve base (2), there is induction opening A the upper end of upper valve body (1), valve member is positioned at the center of lower valve base (2), piston (3) is inserted in the upper valve body (1), these piston (3) one ends have thin neck (3-1), in the thin neck (3-1) axis through-hole (3-1-1) is arranged, the also outer pull back spring (3-1-2) that is with of thin neck (3-1), it is characterized in that: there is a compensating groove (3-2) described piston (3) upper end, compensating groove (3-2) is built-in with T type balance seat (3-3), this T type balance seat (3-3) is outer to be with equilibrium bomb gonosome (3-3-1), and the upper end of described compensating groove (3-2) is provided with limited protruding member (3-4) T type balance seat (3-3) is limited in the compensating groove (3-2); Described piston (3) lower end is provided with ring-shaped step (3-5), this ring-shaped step (3-5) and lower valve base (2) sealed sliding running-fit.
2. automobile rear wheel brave valve assembly according to claim 1 is characterized in that: be provided with spring groove (3-5-1) in the described piston ring-shaped step (3-5).
3. automobile rear wheel brave valve assembly according to claim 1, it is characterized in that: described valve member includes valve port (4), valve plug (5), pull back spring (6), orienting sleeve (7) and vent B and C, valve plug (5) is positioned at valve port (4), orienting sleeve (7) is inserted in its lower end, and pull back spring (6) withstands on the upper end of valve plug (5) lower end step and orienting sleeve (7) respectively; Described orienting sleeve (7) is fixed in the lower valve base (2) by limited protruding member (2-1).
4. automobile rear wheel brave valve assembly according to claim 3 is characterized in that: there is a sealed groove (7-1) in described orienting sleeve (7) outside, and the interior assembly of groove (7-1) has seal ring.
5. according to claim 1 or 2 or 3 or 4 described automobile rear wheel brave valve assemblies, it is characterized in that: between described compensating groove (3-2) bottom and T type balance seat (3-3) bottom free gap is arranged.
6. according to claim 1 or 2 or 3 or 4 described automobile rear wheel brave valve assemblies, it is characterized in that: there are two sealed grooves (3-7) and (3-8) in described piston (3) outside, groove (3-7) and (3-8) interior assembly seal ring is arranged.
7. automobile rear wheel brave valve assembly according to claim 5 is characterized in that: there are two sealed grooves (3-7) and (3-8) in described piston (3) outside, groove (3-7) and (3-8) interior assembly seal ring is arranged.
8. according to claim 1 or 2 or 3 or 4 described automobile rear wheel brave valve assemblies, it is characterized in that: be provided with a sealed groove (2-2) with the place of matching, upper valve base ring-shaped step (3-5) outside in the described lower valve base (2), the interior assembly of groove (2-2) has seal ring.
9. automobile rear wheel brave valve assembly according to claim 5 is characterized in that: be provided with a sealed groove (2-2) with the place of matching, upper valve base ring-shaped step (3-5) outside in the described lower valve base (2), the interior assembly of groove (2-2) has seal ring.
10. automobile rear wheel brave valve assembly according to claim 5 is characterized in that: be provided with a sealed groove (2-2) with the place of matching, upper valve base ring-shaped step (3-5) outside in the described lower valve base (2), the interior assembly of groove (2-2) has seal ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201067428U CN201026871Y (en) | 2007-02-15 | 2007-02-15 | Braking valve assembly of rear wheel of automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201067428U CN201026871Y (en) | 2007-02-15 | 2007-02-15 | Braking valve assembly of rear wheel of automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201026871Y true CN201026871Y (en) | 2008-02-27 |
Family
ID=39131073
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201067428U Expired - Fee Related CN201026871Y (en) | 2007-02-15 | 2007-02-15 | Braking valve assembly of rear wheel of automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201026871Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102874244A (en) * | 2012-10-22 | 2013-01-16 | 张小伟 | Pneumatic automatic control valve for braking |
| CN113650597A (en) * | 2021-09-25 | 2021-11-16 | 威海广泰空港设备股份有限公司 | Relay valve and anti-freezing control method thereof |
-
2007
- 2007-02-15 CN CNU2007201067428U patent/CN201026871Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102874244A (en) * | 2012-10-22 | 2013-01-16 | 张小伟 | Pneumatic automatic control valve for braking |
| CN113650597A (en) * | 2021-09-25 | 2021-11-16 | 威海广泰空港设备股份有限公司 | Relay valve and anti-freezing control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080227 |