CN204985838U - Your bi -pass directional control valve - Google Patents
Your bi -pass directional control valve Download PDFInfo
- Publication number
- CN204985838U CN204985838U CN201520348322.5U CN201520348322U CN204985838U CN 204985838 U CN204985838 U CN 204985838U CN 201520348322 U CN201520348322 U CN 201520348322U CN 204985838 U CN204985838 U CN 204985838U
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- seal ring
- valve rod
- control valve
- housing
- plain washer
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Abstract
The utility model discloses a your bi -pass directional control valve, which belongs to the technical field of automotive components, it includes valve rod and casing, the bottom of valve rod is stretched into inside the casing, air inlet and gas outlet have been seted up on the casing, still offer the admission line in the casing and given vent to anger the pipeline, the admission line is linked together with the air inlet, the pipeline of giving vent to anger is linked together with the gas outlet, first sealing washer and second sealing washer have been put to the lower part outside cover of valve rod, first sealing washer lies in the top of the pipeline of giving vent to anger, the second sealing washer lies in the below of the pipeline of giving vent to anger, first, second sealing washer is the reinforced seal circle, and the reinforced seal circle is including seal and web frame, and the top of first sealing washer is provided with first plain washer, below and is provided with the second plain washer, and the top of second sealing washer is provided with the supporting shoe, the below is provided with the third plain washer. The utility model discloses sealing performance is good, there is good uniformity in the closing stroke of long service life, control valve.
Description
Technical field
The utility model belongs to technical field of automobile parts, particularly relates to a kind of bi-bit bi-pass position control valve.
Background technique
At present, the structure of the bi-bit bi-pass position control valve on market as shown in Figure 1, it comprises housing 3 and end cap 1, push rod 2 is provided with in end cap 1, valve rod 4 is provided with in housing 3, the radial direction of valve rod 4 offers aperture, the outer cover of valve rod 4 is equipped with two O type circles 5, valve pocket 8 is provided with between two O type circles 5, valve pocket 8 offers annular groove and its radial direction also offers vent, housing 3 offers suction port 6 and air outlet 7, when push rod 2 is in free state, gas is entered by suction port 6, discharge from air outlet 7, after push rod 1 is depressed the stroke reaching regulation, cut-off between suction port 6 and air outlet 7, in this process, moving up and down of ovable valve stem 4 is with in moving up and down of push rod 2, in the process that valve rod 4 moves up and down, the aperture that valve rod 4 is offered above can produce cutting to the O type circle being positioned at below, along with the growth of service time, the O type circle being positioned at below constantly weares and teares, greatly reduce the working life of below O type circle.In addition, structure in Fig. 1, upper and lower O type circle can not obtain well fixing, along with the change of frictional force in the change of gas pressure and valve rod 4 movement process, the O type circle being positioned at below can produce and move up and down, then the shutoff stroke of push rod 2 there will be larger error, and the athletic meeting of below O type circle causes poorly sealed.
As can be seen here, prior art awaits further improving.
Model utility content
The utility model is the deficiency avoiding above-mentioned prior art to exist, and provides that a kind of structure is simple, the bi-bit bi-pass position control valve of good sealing effect, long service life.
The technological scheme that the utility model adopts is:
A kind of bi-bit bi-pass position control valve, comprise valve rod and housing, enclosure interior is stretched in the bottom of valve rod, housing offers suction port and air outlet, suction port and air outlet lay respectively at the both sides of housing, admission line and outlet pipe is also offered in housing, admission line is connected with suction port, outlet pipe is connected with air outlet, the lower outside of valve rod is equipped with the first seal ring and the second seal ring, first seal ring is positioned at the top of outlet pipe, second seal ring is positioned at the below of outlet pipe, described first, second seal ring is backbone sealing ring, backbone sealing ring comprises seal and web frame, the top of the first seal ring is provided with the first plain washer, below is provided with the second plain washer, second plain washer is positioned at the top of the upper-end surface of outlet pipe, the top of the second seal ring is provided with support block, below is provided with the 3rd plain washer, support block offers multiple vent slot, and the bottom surface of each vent slot is positioned at the bottom of the lower end surface of outlet pipe, 3rd plain washer is close to the upper-end surface of admission line.
The external frame of described valve rod is stepped, and the external diameter of valve rod successively decreases from top to bottom step by step, and the external diameter of stem bottom is less than the internal diameter of the second seal ring.
Described bi-bit bi-pass position control valve also comprises the end cap be connected with housing, push rod is provided with in end cap, the top of valve rod is connected with the bottom of push rod, the chamber that can move up and down for push rod and valve rod is provided with in end cap, the upper outside of valve rod is equipped with Returnning spring, the junction surface place of end cap and housing is provided with spring seat, and the lower end surface of spring seat is close in the upper-end surface of the first plain washer.
The 3rd seal ring is provided with between described push rod and end cap.
Also be provided with axle sleeve between described push rod and end cap, axle sleeve is positioned at the top of the 3rd seal ring.
Owing to have employed technique scheme, the beneficial effect acquired by the utility model is:
1, can well be spacing between support block and the 3rd plain washer with the second seal ring of web frame in the utility model, second seal ring can not fluctuate along with the change of the change of pressure or valve rod frictional force, make the conformity that the shutoff stroke of control valve can keep good, also improve the sealability of control valve simultaneously.
2, the valve rod in the utility model have employed the structure of step type, there is level and smooth transition between its large footpath and path, in the process that push rod band ovable valve stem moves up and down, can not produce friction, extend the working life of the second seal ring to the second seal ring.
Accompanying drawing explanation
Fig. 1 is the structural representation of existing bi-bit bi-pass position control valve.
Fig. 2 is structural representation of the present utility model.
Fig. 3 is the partial enlarged drawing at A place in Fig. 2.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment, the utility model is described in further detail, but the utility model is not limited to these embodiments.
As shown in Figures 2 and 3, a kind of bi-bit bi-pass position control valve, comprise valve rod 13, housing 16 and the end cap 10 be connected with housing 16, push rod 9 is provided with in end cap 10, the 3rd seal ring 12 is provided with between push rod 9 and end cap 10, 3rd seal ring 12 is for sealing push rod 9 and end cap 10, prevent impurity, wet goods enters control valve inside, axle sleeve 11 is also provided with between described push rod 9 and end cap 10, the frictional force that axle sleeve 11 moves up and down for reducing push rod, axle sleeve 11 is positioned at the top of the 3rd seal ring 12, the top of valve rod 13 is connected with the bottom of push rod 9, housing 16 inside is stretched in the bottom of valve rod 13, the chamber that can move up and down for push rod 9 and valve rod 13 is provided with in end cap 10, the upper outside of valve rod 13 is equipped with Returnning spring 14, end cap 10 is provided with spring seat 15 with the junction surface place of housing 16, housing 16 offers suction port 23 and air outlet 26, suction port 23 and air outlet 26 lay respectively at the both sides of housing 16, admission line 24 and outlet pipe 25 is also offered in housing 16, admission line 24 is connected with suction port 23, outlet pipe 25 is connected with air outlet 26, valve rod 13 moves up and down thus realizes the logical and disconnected of suction port 23 and air outlet 26 under the drive of push rod 9, the lower outside of valve rod 13 is equipped with the first seal ring 18 and the second seal ring 21, first seal ring 18 is positioned at the top of outlet pipe 25, second seal ring 21 is positioned at the below of outlet pipe 25, the external frame of described valve rod 13 is stepped, and the external diameter of valve rod 13 successively decreases from top to bottom step by step, external diameter bottom valve rod 13 is less than the internal diameter of the second seal ring 21, described first, second seal ring is backbone sealing ring, backbone sealing ring comprises seal 181 and web frame 182, the top of the first seal ring 18 is provided with the first plain washer 17, below is provided with the second plain washer 19, the lower end surface of spring seat 15 is close in the upper-end surface of the first plain washer 17, second plain washer 19 is positioned at the top of the upper-end surface of outlet pipe 25, the top of the second seal ring 21 is provided with support block 20, below is provided with the 3rd plain washer 22, support block offers multiple vent slot, and the bottom surface of each vent slot is positioned at the bottom of the lower end surface of outlet pipe, 3rd plain washer is close to the upper-end surface of admission line.
When push rod 9 is in free state, gas is entered by suction port 23 and discharges through air outlet 26; After push rod 9 is pressed down to the stroke of regulation, valve rod 13 moves down, cut-off between suction port 23 and air outlet 26.
The part do not addressed in the utility model adopts or uses for reference prior art and can realize.
In addition, term " first ", " second ", " the 3rd " only for describing object, and can not be interpreted as instruction or hint relative importance.
Specific embodiment described herein is only to spiritual example explanation of the present utility model.The utility model person of ordinary skill in the field can make various amendment or supplements or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present utility model or surmount the scope that appended claims defines.
Claims (5)
1. a bi-bit bi-pass position control valve, comprise valve rod and housing, enclosure interior is stretched in the bottom of valve rod, housing offers suction port and air outlet, suction port and air outlet lay respectively at the both sides of housing, admission line and outlet pipe is also offered in housing, admission line is connected with suction port, outlet pipe is connected with air outlet, the lower outside of valve rod is equipped with the first seal ring and the second seal ring, first seal ring is positioned at the top of outlet pipe, second seal ring is positioned at the below of outlet pipe, it is characterized in that: described first, second seal ring is backbone sealing ring, backbone sealing ring comprises seal and web frame, the top of the first seal ring is provided with the first plain washer, below is provided with the second plain washer, second plain washer is positioned at the top of the upper-end surface of outlet pipe, the top of the second seal ring is provided with support block, below is provided with the 3rd plain washer, support block offers multiple vent slot, and the bottom surface of each vent slot is positioned at the bottom of the lower end surface of outlet pipe, 3rd plain washer is close to the upper-end surface of admission line.
2. a kind of bi-bit bi-pass position control valve according to claim 1, it is characterized in that: the external frame of described valve rod is stepped, and the external diameter of valve rod successively decreases from top to bottom step by step, and the external diameter of stem bottom is less than the internal diameter of the second seal ring.
3. a kind of bi-bit bi-pass position control valve according to claim 1 and 2, it is characterized in that: described bi-bit bi-pass position control valve also comprises the end cap be connected with housing, push rod is provided with in end cap, the top of valve rod is connected with the bottom of push rod, the chamber that can move up and down for push rod and valve rod is provided with in end cap, the upper outside of valve rod is equipped with Returnning spring, and the junction surface place of end cap and housing is provided with spring seat, and the lower end surface of spring seat is close in the upper-end surface of the first plain washer.
4. a kind of bi-bit bi-pass position control valve according to claim 3, is characterized in that: be provided with the 3rd seal ring between described push rod and end cap.
5. a kind of bi-bit bi-pass position control valve according to claim 4, is characterized in that: be also provided with axle sleeve between described push rod and end cap, and axle sleeve is positioned at the top of the 3rd seal ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520348322.5U CN204985838U (en) | 2015-05-27 | 2015-05-27 | Your bi -pass directional control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520348322.5U CN204985838U (en) | 2015-05-27 | 2015-05-27 | Your bi -pass directional control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204985838U true CN204985838U (en) | 2016-01-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520348322.5U Active CN204985838U (en) | 2015-05-27 | 2015-05-27 | Your bi -pass directional control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204985838U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107570498A (en) * | 2017-10-23 | 2018-01-12 | 中车长江车辆有限公司 | A kind of brake pipe cleaner for inner wall and cleaning method |
| CN108799512A (en) * | 2018-08-30 | 2018-11-13 | 深圳市长治电子科技有限公司 | A kind of high pressure valve |
-
2015
- 2015-05-27 CN CN201520348322.5U patent/CN204985838U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107570498A (en) * | 2017-10-23 | 2018-01-12 | 中车长江车辆有限公司 | A kind of brake pipe cleaner for inner wall and cleaning method |
| CN108799512A (en) * | 2018-08-30 | 2018-11-13 | 深圳市长治电子科技有限公司 | A kind of high pressure valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 266510 No. 917, Weihe Road, Qingdao economic and Technological Development Zone, Shandong, China Patentee after: ZF commercial vehicle systems (Qingdao) Co.,Ltd. Address before: 266510 No. 917, Weihe Road, Qingdao economic and Technological Development Zone, Shandong, China Patentee before: Wabco (China) Co.,Ltd. |