CN209054148U - One kind being used for brake system of car normally open valve - Google Patents
One kind being used for brake system of car normally open valve Download PDFInfo
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- CN209054148U CN209054148U CN201821711033.7U CN201821711033U CN209054148U CN 209054148 U CN209054148 U CN 209054148U CN 201821711033 U CN201821711033 U CN 201821711033U CN 209054148 U CN209054148 U CN 209054148U
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- valve
- valve body
- mandril
- armature
- guide sleeve
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Abstract
The utility model discloses one kind to be used for brake system of car normally open valve.The top of valve body is equipped with guide sleeve, armature can be moved axially in guide sleeve by being equipped in guide sleeve, mandril is arranged in the first valve chamber of valve body and moves axially along valve body, the seal groove of annular is provided in the middle part of first valve chamber, sealing ring is mounted in seal groove, the inner wall of valve body and the outer wall of mandril are spaced by sealing ring, so that free gap a part between valve body and mandril is connected to the air gap between armature and valve body, another part is connected to the second valve chamber of valve body；One end of mandril is connected with armature, and the other end of mandril is equipped with sealed steel ball, and valve seat interference fit is mounted in the second valve chamber, and reset spring is pressed on valve seat and withstands on mandril in valve body, and valve seat is provided with the sealing cone mouth being used cooperatively with sealed steel ball.Band ball check valve structure is omitted in the utility model, reduces in cost.It increases and meets two-way pressure holding function, two-way isolating valve can be served as in new deceleration of electrons control system.
Description
Technical field
The utility model relates to solenoid valve market in electronic air brake, and in particular to a kind of to be used for brake system of car
Normally open valve.
Background technique
Solenoid valve extensive application in the new electronic product such as ABS system ESC system, in current existing system
Check valve is integrated in normally open valve, brake fluid reflux normally open valve closure leads to wheel lock up in order to prevent.But this kind of structure
Valve can only one-way pressure maintaining, and structure is complicated, is not available in two-way pressure dwelling loop.In order to solve to need in some braking systems
It asks two-way pressure maintaining and not may occur in which wheel lock up, so needing the solenoid valve that can satisfy the condition.
Utility model content
In order to solve the problems, such as background technique, the utility model is wanted for currently existing brake system of car
Ask, provide it is a kind of widen function and design for brake system of car normally open valve, the normal of current normally open valve can either be met
While advising job requirement, and it can satisfy the condition of the two-way pressure maintaining of certain braking systems.
The technical solution of the utility model is as follows:
The utility model includes valve body, holds oily filter, valve seat, ring oily filter, guide sleeve, sealed steel ball, mandril, reset spring, rank
Iron and sealing ring, the top of valve body are provided with the guide sleeve extended along valve body axial direction, are equipped with armature, armature and valve body in guide sleeve
Between there is the air gap, armature is moved axially in guide sleeve, valve body is equipped with axial connection and different the first valve of diameter
Chamber and the second valve chamber, mandril are arranged in the first valve chamber and move axially along valve body, and valve body and mandril have a free gap, and first
The seal groove of annular is provided in the middle part of valve chamber, sealing ring is mounted in seal groove, and the inner wall of valve body and the outer wall of mandril are logical
Sealing ring is crossed to be spaced, so that the free gap between valve body and mandril is divided into two parts, a part and armature of free gap
The air gap between valve body is connected to, and another part of free gap is connected to the second valve chamber of valve body；
One end of mandril is connected with armature, and the other end of mandril is equipped with boss, and mandril protrudes into the second valve chamber by boss, convex
The bottom face of platform is fixed with sealed steel ball by axis, and reset spring is set in outside axis, so that one end of reset spring and boss
Bottom face be in contact,
Valve seat interference fit is mounted in the second valve chamber, and the other end of reset spring is pressed on valve seat, and reset spring passes through
It is pressed on valve seat and withstands on mandril in valve body.Valve seat is provided with stepped hole as hydraulic fluid port channel, and one end of stepped hole is equipped with and sealing
The sealing cone mouth that steel ball is used cooperatively.
The bottom end of corresponding second valve chamber of the valve body is equipped with end oily filter.
The outer surface of the corresponding second valve chamber position of the valve body is around equipped with ring oily filter.
The boss is connected to mandrel ends by pyramidal structure transition.
The guide sleeve is weldingly fixed on valve body.
The utility model separates valve body and mandril to form two chambers by sealing ring, and function is more simple, reliable；
Sealed steel ball separates normally open valve with valve seat under normal conditions, realizes bidirectionally conductive.Under conventional sense, mandril is pressed in valve by reset spring
On body；Working condition, armature are attracted under electromagnetic coil effect with valve body, and sealed steel ball and valve seat are formed and sealed.
The beneficial effects of the utility model are:
1) with conventional normally open valve ratio, present invention omits band ball check valve structures, reduce in cost.
2) this knot valve increases under conditions of meeting conventional liquid feed valve prevents spool closure valve port during liquid flowing
Meet two-way pressure holding function, two-way isolating valve can be served as in new deceleration of electrons control system again, be electromagnetic valve control
The electronic product of system provides a kind of reliably solenoid valve.
Detailed description of the invention
The utility model is further described with reference to the accompanying drawings and detailed description:
Fig. 1 is normally open valve assembly structure schematic diagram；
Fig. 2 (a) is normally opened valve body flow regime schematic diagram from the bottom up；
Fig. 2 (b) is normally opened valve body flow regime schematic diagram from the bottom up；
Fig. 3 (a) is normally opened valve closing state operation principle schematic diagram；
Fig. 3 (b) is the partial enlarged view of Fig. 3 (a)；
Fig. 4 is normally opened the valve opening state operation principle schematic diagram.
In figure: 1. valve bodies, 2. end oily filters, 3. valve seats, 4. ring oily filters, 5. guide sleeves, 6. sealed steel balls, 7. mandrils, 8. reset
Spring, 9. armature, 10. sealing rings.
Specific embodiment
The utility model is further described with reference to the accompanying drawings and detailed description.
As shown in Figure 1, the top of valve body 1 is provided with the guide sleeve 5 extended along 1 axial direction of valve body, armature is equipped in guide sleeve 5
9, there is the air gap between armature 9 and valve body 1, armature 9 is moved axially in guide sleeve 5, valve body 1 be equipped with axial connection and
Diameter different the first valve chamber and the second valve chamber, mandril 7 are arranged in the first valve chamber and move axially along valve body 1, valve body 1 and top
Bar 7 has free gap, and the seal groove of annular is provided in the middle part of the first valve chamber, and sealing ring 10 is mounted in seal groove, valve
The inner wall of body 1 and the outer wall of mandril 7 are spaced by sealing ring 10, so that the free gap between valve body 1 and mandril 7 is divided into two
A part of part, free gap is connected to the air gap between armature 9 and valve body 1, another part and valve body 1 of free gap
The second valve chamber connection.
One end of mandril 7 is connected with armature 9, and the other end of mandril 7 is equipped with boss, and boss is connected by pyramidal structure transition
To 7 end of mandril, mandril 7 protrudes into the second valve chamber by boss, and the bottom face of boss is fixed with sealed steel ball 6 by axis, resets
Spring 8 is set in outside axis, so that one end of reset spring 8 is in contact with the bottom face of boss,
The interference fit of valve seat 3 is mounted in the second valve chamber, and the other end of reset spring 8 is pressed on valve seat 3, reset spring 8
Mandril 7 is withstood in valve body 1 by being pressed on valve seat 3.Valve seat 3 is provided with stepped hole as hydraulic fluid port channel, and one end of stepped hole is set
There is the sealing cone mouth being used cooperatively with sealed steel ball 6.
In specific implementation, the bottom end of corresponding second valve chamber of valve body 1 is equipped with end oily filter 2；The corresponding second valve chamber position of valve body 1
Outer surface is around equipped with ring oily filter 4.
In specific implementation, guide sleeve 5 is weldingly fixed on valve body 1.
Sealed steel ball 6 separates normally open valve with valve seat 3 under normal conditions, realizes bidirectionally conductive.Under conventional sense, reset spring will
Mandril is pressed on valve body；Working condition, armature are attracted under electromagnetic coil effect with valve body, steel ball and valve seat shape on mandril
At sealing.
As shown in Fig. 2, indicating the first type of flow of brake fluid in schematic diagram.Brake fluid is from solenoid valve lower end feed pressure
For P1, outflow partial pressure is P2, and mandril 7 is separated with valve body 1 by sealing ring 10, and mandril 7 and valve body 1 are located on sealing ring 10
Free gap and armature 9 and valve body 1 between the air gap constitute third chamber, the pressure of third chamber is P3, liquid flowing
The reason of be pressure difference.
As shown in figure 3, the normally open valve is in working condition, brake fluid from solenoid valve upper end feed pressure be P1, under solenoid valve
End outflow partial pressure is P2, has P1 < P2, mandril steel ball and valve base sealing, upper and lower two chambers isolation, mandril 7 is with 9 downlink of armature
It moves down, sealed steel ball 6 is withstood on and forms sealing in the sealing cone mouth of valve seat 3, two parts are spaced up and down at this time.
As shown in figure 4, when normally open valve is opened, process of the brake fluid from top toward flowing underneath.Brake fluid is from solenoid valve
End feed pressure is P1, and it is P2 that partial pressure is flowed out in solenoid valve lower end, since sealing ring 10 has buffer action shape during being somebody's turn to do
At P2, the pressure difference of P3, P1 > P2, P1 > P3, P2 > P3 guarantee that mandril 7 is pressed on valve body 1, and mandril 7 will not move down, so
Mandril 7 will not be flowed by liquid closes 6 leukorrhagia of sealed steel ball to generate isolation two chambers effect, to form normally opened shape
State.
Claims (5)
1. one kind is used for brake system of car normally open valve, it is characterised in that: including valve body (1), hold oily filter (2), valve seat (3), ring
Oily filter (4), guide sleeve (5), sealed steel ball (6), mandril (7), reset spring (8), armature (9) and sealing ring (10), valve body (1)
Top is provided with the guide sleeve (5) extended along valve body (1) axial direction, is equipped with armature (9), armature (9) and valve body in guide sleeve (5)
(1) there is the air gap, so that armature (9) can move axially in guide sleeve (5), valve body (1) is equipped with axial connection and diameter between
Different the first valve chambers and the second valve chamber, mandril (7) be arranged in the first valve chamber and along valve body (1) move axially, valve body (1) with
Mandril (7) has free gap, and the seal groove of annular is provided in the middle part of the first valve chamber, and sealing ring (10) is mounted on seal groove
In, the inner wall of valve body (1) is spaced with the outer wall of mandril (7) by sealing ring (10), so that between valve body (1) and mandril (7)
Free gap is divided into two parts, and a part of free gap is connected to the air gap between armature (9) and valve body (1), activity
The another part in gap is connected to the second valve chamber of valve body (1)；One end of mandril (7) is connected with armature (9), mandril (7) it is another
One end is equipped with boss, and mandril (7) protrudes into the second valve chamber by boss, and the bottom face of boss is fixed with sealed steel ball (6) by axis,
Reset spring (8) is set in outside axis, so that one end of reset spring (8) is in contact with the bottom face of boss, valve seat (3) interference
It is fitted in the second valve chamber, the other end of reset spring (8) is pressed on valve seat (3), and valve seat (3) is provided with stepped hole as oil
Mouth channel, one end of stepped hole are equipped with the sealing cone mouth being used cooperatively with sealed steel ball (6).
2. according to claim 1 a kind of for brake system of car normally open valve, it is characterised in that:
The bottom end of corresponding second valve chamber of the valve body (1) is equipped with end oily filter (2).
3. according to claim 1 a kind of for brake system of car normally open valve, it is characterised in that:
The outer surface of the corresponding second valve chamber position of the valve body (1) is around equipped with ring oily filter (4).
4. according to claim 1 a kind of for brake system of car normally open valve, it is characterised in that:
The boss is connected to mandril (7) end by pyramidal structure transition.
5. according to claim 1 a kind of for brake system of car normally open valve, it is characterised in that:
The guide sleeve (5) is weldingly fixed on valve body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821711033.7U CN209054148U (en) | 2018-10-22 | 2018-10-22 | One kind being used for brake system of car normally open valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821711033.7U CN209054148U (en) | 2018-10-22 | 2018-10-22 | One kind being used for brake system of car normally open valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209054148U true CN209054148U (en) | 2019-07-02 |
Family
ID=67051063
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821711033.7U Active CN209054148U (en) | 2018-10-22 | 2018-10-22 | One kind being used for brake system of car normally open valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209054148U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111271330A (en) * | 2020-01-21 | 2020-06-12 | 西安航空学院 | Direct-acting electric control one-way valve |
-
2018
- 2018-10-22 CN CN201821711033.7U patent/CN209054148U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111271330A (en) * | 2020-01-21 | 2020-06-12 | 西安航空学院 | Direct-acting electric control one-way valve |
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