CN204716677U - A kind of flushing valve - Google Patents
A kind of flushing valve Download PDFInfo
- Publication number
- CN204716677U CN204716677U CN201520442129.8U CN201520442129U CN204716677U CN 204716677 U CN204716677 U CN 204716677U CN 201520442129 U CN201520442129 U CN 201520442129U CN 204716677 U CN204716677 U CN 204716677U
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- Prior art keywords
- spool
- valve
- valve pocket
- valve body
- sealing area
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Abstract
The utility model relates to a kind of flushing valve, include valve body, spool, valve pocket is provided with in described valve body, valve body is provided with the spool bore inserting valve pocket for spool, the return unit for the spool that resets is provided with in valve pocket, described valve body is provided with the drain tap with valve pocket conducting, spool is provided with oil inlet passage, oil inlet passage one end is filler opening, the other end is oil outlet, spool is provided with limiting board, limiting board is provided with primary sealing area, secondary sealing area is provided with in valve pocket, primary sealing area and secondary sealing area seal and valve pocket are separated into the first cavity, second cavity, described oil outlet and the first cavity conducting, drain tap and the second cavity conducting, also include sealing configuration that filler opening or drain tap are closed gradually when spool declines.Adopt technique scheme, the utility model provides a kind of flushing valve, and it can rinse the impurity in oil duct, and, make hydraulic transmission good heat dissipation effect, motor starting, braking more steady.
Description
Technical field
The utility model relates to a kind of flushing valve.
Background technique
Existing a kind of hydraulic transmission, include oil pump, motor, first oil duct, the second oil duct, first oil duct, the second oil duct two ends are connected with oil pump, motor respectively, oil pump, the first oil duct, motor, the second oil duct form oil hydraulic circuit, when fluid in oil pump flows into motor from the first oil duct, flow back to through the second oil duct the rotating forward that oil pump realizes motor; When fluid in oil pump flows into motor from the second oil duct, flow back to through the first oil duct the reversion that oil pump realizes motor.But in use, the impurity in the first oil duct, the second oil duct can not rinse this transmission device, and this transmission device radiating effect is poor, make motor starting, braking not steady.
Summary of the invention
The purpose of this utility model: in order to overcome the defect of prior art, the utility model provides a kind of flushing valve, it can rinse the impurity in oil duct, and, make hydraulic transmission good heat dissipation effect, motor starting, braking more steady.
The technical solution of the utility model: a kind of flushing valve, it is characterized in that: include valve body, spool, valve pocket is provided with in described valve body, valve body is provided with the spool bore inserting valve pocket for spool, spool one end extends in valve pocket through spool bore, the other end extends to outside valve body, described spool is elevated with valve body and coordinates, the return unit for the spool that resets is provided with in valve pocket, described valve body is provided with the drain tap with valve pocket conducting, spool is provided with oil inlet passage, oil inlet passage one end is filler opening, the other end is oil outlet, the spool being positioned at valve pocket is provided with the limiting board for preventing spool from departing from valve pocket, limiting board is provided with primary sealing area, in valve pocket, corresponding primary sealing area position is provided with secondary sealing area, primary sealing area and secondary sealing area seal and valve pocket are separated into the first cavity, second cavity, described oil outlet and the first cavity conducting, drain tap and the second cavity conducting, also include sealing configuration that filler opening or drain tap are closed gradually when spool declines.
Adopt technique scheme, during installation, in the first oil duct flushing valve being arranged on hydraulic transmission or the second oil duct, make filler opening and the first oil duct or the second oil duct conducting, drain tap is communicated with fuel tank, time initial, primary sealing area and secondary sealing area seal, and the first cavity and the second cavity are ended; In the first oil duct or the second oil duct, produce certain pressure pusher movable valve plug decline in valve pocket, now primary sealing area is separated with secondary sealing area, first cavity, the second cavity conducting, fluid flows back to fuel tank from filler opening through oil outlet, valve pocket, drain tap, can rinse like this to the impurity in oil duct, and, during work, oil duct inner fluid temperature is higher, by part fluid is flowed back to fuel tank, the radiating effect of hydraulic transmission can be improved, make motor starting, braking more steady; After the first oil duct or the second oil duct internal pressure acquire a certain degree, filler opening or drain tap are closed by sealing configuration completely, can prevent too much fluid from flowing to fuel tank like this, affect the service behaviour of motor.
Further setting of the present utility model: described spool lower end is provided with when spool declines for the 3rd sealing surface with drain tap inner wall sealing.
Adopt above-mentioned further setting, drop to a certain degree at spool, closed by drain tap by the 3rd sealing surface and drain tap inner wall sealing, structure is simple, good airproof performance.
Further setting of the present utility model: described filler opening is arranged on the outer side wall of spool side relative to spool bore inwall, described spool is positioned at filler opening upper end and is provided with when spool declines for the 4th sealing surface with spool bore inner wall sealing.
Adopt above-mentioned further setting, drop to a certain degree at spool, closed by filler opening by the 4th sealing surface and spool bore inner wall sealing, structure is simple, good airproof performance.
Further setting more of the present utility model: described valve body includes valve body body, gland, described valve pocket upper end open is arranged, gland is arranged on valve chamber open place, spool bore is arranged on gland, described gland circumferential side wall is embedded in valve body body, and described secondary sealing area is arranged on gland.
Adopt and above-mentionedly further to arrange again, valve body split is arranged, the installation of spool, dismounting can be facilitated.
Of the present utility model more further arrange: described return unit is spring, and described spring housing is located on spool, spool two ends respectively with valve pocket bottom, limiting board conflict.
Adopt and above-mentionedly further to arrange again, return unit adopts spring, and better reduction, this spring fitting mode, positioning stablity, structure is simple.
Accompanying drawing explanation
Fig. 1 is the structural representation of embodiment 1 original state;
Structural representation when Fig. 2 is the closedown of embodiment 1 drain tap;
Fig. 3 is the structural representation of embodiment 2 original state;
Structural representation when Fig. 4 is the closedown of embodiment 2 filler opening.
Embodiment
Embodiment 1:
As Fig. 1, shown in 2, a kind of flushing valve, include valve body 1, spool 2, valve pocket 3 is provided with in described valve body 1, valve body 1 is provided with the spool bore 4 inserting valve pocket 3 for spool 2, spool 2 one end extends in valve pocket 3 through spool bore 4, the other end extends to outside valve body 1, described spool 2 is elevated with valve body 1 and coordinates, the spool 2 being positioned at valve pocket is provided with the limiting board 5 for preventing spool 2 from departing from valve pocket 3, the spring 6 for the spool 2 that resets is provided with in valve pocket 3, described spring 6 is set on spool 2, spool 2 two ends respectively with valve pocket 3 bottom, limiting board 5 is conflicted, described valve body 1 is provided with the drain tap 7 with valve pocket 3 conducting, spool 2 is provided with oil inlet passage 8, oil inlet passage 8 one end is filler opening 81, the other end is oil outlet 82, limiting board 5 is provided with primary sealing area 21, in valve pocket 3, corresponding primary sealing area 21 position is provided with secondary sealing area 9, primary sealing area 21 and secondary sealing area 9 seal and valve pocket are separated into the first cavity 31, second cavity 32, described oil outlet 82 and the first cavity 31 conducting, drain tap 7 and the second cavity 32 conducting, described spool 2 lower end is provided with for the 3rd sealing surface 22 with drain tap 7 inner wall sealing, 3rd sealing surface 22 is conical surface, it can certainly be cylindroid, wherein, described valve body 1 includes the valve body body 11 that split is arranged, gland 12, described valve pocket 3 is arranged on valve body body 11, valve pocket 3 upper end open is arranged, gland 12 is arranged on opening, spool bore 4 is arranged on gland 12, described secondary sealing area 9 is also arranged on gland 12.
During installation, in the first oil duct flushing valve being arranged on hydraulic transmission or the second oil duct, make filler opening 81 and the first oil duct or the second oil duct conducting, drain tap 7 is communicated with fuel tank, time initial, primary sealing area 21 and secondary sealing area 9 are conflicted, and oil outlet 82 and valve pocket 3 are ended; In the first oil duct or the second oil duct, produce certain pressure pusher movable valve plug 2 decline in valve pocket 3, now primary sealing area 21 is separated with secondary sealing area 9, oil outlet 82 and valve pocket 3 conducting, fluid flows back to fuel tank from filler opening 81 through oil outlet 82, valve pocket 3, drain tap 7, impurity in oil duct can be rinsed like this, and, during work, oil duct inner fluid temperature is higher, by part fluid is flowed back to fuel tank, the radiating effect of hydraulic transmission can be improved, make motor starting, braking more steady; After the first oil duct or the second oil duct internal pressure acquire a certain degree, drain tap 7 is closed with drain tap 7 inner wall sealing by the 3rd sealing surface 22 completely, can prevent too much fluid from flowing to fuel tank like this, affect the service behaviour of motor.
Embodiment 2:
As Fig. 3, shown in 4, a kind of flushing valve, include valve body 1 ', spool 2 ', valve pocket 3 ' is provided with in described valve body 1 ', valve body 1 ' is provided with the spool bore 4 ' inserting valve pocket 3 ' for spool 2 ', spool 2 ' one end extends in valve pocket 3 ' through spool bore 4 ', the other end extends to valve body 1 ' outward, described spool 2 ' is elevated with valve body 1 ' and coordinates, the spool 2 ' being positioned at valve pocket is provided with the limiting board 5 ' for preventing spool 2 ' from departing from valve pocket 3 ', the spring 6 ' for the spool 2 ' that resets is provided with in valve pocket 3 ', described spring 6 ' is set on spool 2 ', spool 2 ' two ends respectively with valve pocket 3 ' bottom, limiting board is conflicted, described valve body 1 ' is provided with the drain tap 7 ' with valve pocket 3 ' conducting, spool 2 ' is provided with oil inlet passage 8 ', oil inlet passage 8 ' one end is filler opening 81 ', the other end is oil outlet 82 ', limiting board 5 ' is provided with primary sealing area 21 ', in valve pocket 3 ', corresponding primary sealing area 21 ' position is provided with secondary sealing area 9 ', primary sealing area 21 ' and secondary sealing area 9 ' seal and valve pocket 3 ' are separated into the first cavity 31 ', second cavity 32 ', described oil outlet 82 ' and the first cavity 31 ' conducting, drain tap 7 ' and the second cavity 32 ' conducting, described filler opening 81 ' is arranged on spool 2 ' with on the outer side wall of the relative side of spool bore 4 ' inwall, described spool 2 ' is positioned at filler opening 81 ' upper end to be provided with when spool 2 ' declines for the 4th sealing surface 22 ' with spool bore 4 ' inner wall sealing, 4th sealing surface 22 ' is cylindroid, it can certainly be conical surface, wherein, described valve body 1 ' includes valve body body 11 ', gland 12 ', described valve pocket 3 ' upper end open is arranged, gland 12 ' is arranged on valve pocket 3 ' opening, spool bore 4 ' is arranged on gland 12 ', described gland 12 ' circumferential side wall is embedded in valve body 1 ' body, described secondary sealing area 9 ' is arranged on gland 12 '.
During installation, in the first oil duct flushing valve being arranged on hydraulic transmission or the second oil duct, make filler opening 81 ' and the first oil duct or the second oil duct conducting, drain tap 7 ' is communicated with fuel tank, time initial, primary sealing area 21 ' and secondary sealing area 9 ' are conflicted, and oil outlet 82 ' and valve pocket 3 ' are ended; In the first oil duct or the second oil duct, produce certain pressure pusher movable valve plug 2 ' decline in valve pocket 3 ', now primary sealing area 21 ' is separated with secondary sealing area 9 ', oil outlet 82 ' and valve pocket 3 ' conducting, fluid flows back to fuel tank from filler opening 81 ' through oil outlet 82 ', valve pocket 3 ', drain tap 7 ', impurity in oil duct can be rinsed like this, and, during work, oil duct inner fluid temperature is higher, by part fluid is flowed back to fuel tank, the radiating effect of hydraulic transmission can be improved, make motor starting, braking more steady; After the first oil duct or the second oil duct internal pressure acquire a certain degree, filler opening 81 ' is closed with spool bore 4 ' inner wall sealing by the 4th sealing surface 22 ' completely, can prevent too much fluid from flowing to fuel tank like this, affect the service behaviour of motor.
Claims (5)
1. a flushing valve, it is characterized in that: include valve body, spool, valve pocket is provided with in described valve body, valve body is provided with the spool bore inserting valve pocket for spool, spool one end extends in valve pocket through spool bore, the other end extends to outside valve body, described spool is elevated with valve body and coordinates, the return unit for the spool that resets is provided with in valve pocket, described valve body is provided with the drain tap with valve pocket conducting, spool is provided with oil inlet passage, oil inlet passage one end is filler opening, the other end is oil outlet, the spool being positioned at valve pocket is provided with the limiting board for preventing spool from departing from valve pocket, limiting board is provided with primary sealing area, in valve pocket, corresponding primary sealing area position is provided with secondary sealing area, primary sealing area and secondary sealing area seal and valve pocket are separated into the first cavity, second cavity, described oil outlet and the first cavity conducting, drain tap and the second cavity conducting, also include sealing configuration that filler opening or drain tap are closed gradually when spool declines.
2. flushing valve according to claim 1, is characterized in that: described spool lower end is provided with when spool declines for the 3rd sealing surface with drain tap inner wall sealing.
3. flushing valve according to claim 1, it is characterized in that: described filler opening is arranged on the outer side wall of spool side relative to spool bore inwall, described spool is positioned at filler opening upper end and is provided with when spool declines for the 4th sealing surface with spool bore inner wall sealing.
4. the flushing valve according to claim 1 or 2 or 3, it is characterized in that: described valve body includes valve body body, gland, described valve pocket upper end open is arranged, gland is arranged on valve chamber open place, spool bore is arranged on gland, described gland circumferential side wall is embedded in valve body body, and described secondary sealing area is arranged on gland.
5. the flushing valve according to claim 1 or 2 or 3, is characterized in that: described return unit is spring, and described spring housing is located on spool, spool two ends respectively with valve pocket bottom, limiting board conflict.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520442129.8U CN204716677U (en) | 2015-06-24 | 2015-06-24 | A kind of flushing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520442129.8U CN204716677U (en) | 2015-06-24 | 2015-06-24 | A kind of flushing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204716677U true CN204716677U (en) | 2015-10-21 |
Family
ID=54315679
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520442129.8U Active CN204716677U (en) | 2015-06-24 | 2015-06-24 | A kind of flushing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204716677U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105041784A (en) * | 2015-06-24 | 2015-11-11 | 海特克液压有限公司 | Flushing valve |
-
2015
- 2015-06-24 CN CN201520442129.8U patent/CN204716677U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105041784A (en) * | 2015-06-24 | 2015-11-11 | 海特克液压有限公司 | Flushing valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180205 Address after: Ju Guang Yuan Yue Le Xi Jie Lucheng District of Wenzhou City, Zhejiang Province, No. 156 325000 Patentee after: Wenzhou haiteke power Limited by Share Ltd Address before: Ju Guang Yuan Yue Le Xi Jie Lucheng District of Wenzhou City, Zhejiang Province, No. 156 325000 Patentee before: High-tech Fluid Power Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 325000, No. 156, Yue Xi Street, torch garden, Lucheng District, Zhejiang, Wenzhou Patentee after: Heitek Power Co.,Ltd. Address before: 325000, No. 156, Yue Xi Street, torch garden, Lucheng District, Zhejiang, Wenzhou Patentee before: WENZHOU HIGH-TECH POWER Co.,Ltd. |