CN203962006U - Manual backwashing filter device core assembly - Google Patents
Manual backwashing filter device core assembly Download PDFInfo
- Publication number
- CN203962006U CN203962006U CN201420350201.XU CN201420350201U CN203962006U CN 203962006 U CN203962006 U CN 203962006U CN 201420350201 U CN201420350201 U CN 201420350201U CN 203962006 U CN203962006 U CN 203962006U
- Authority
- CN
- China
- Prior art keywords
- valve pocket
- spool
- high pressure
- valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000011001 backwashing Methods 0.000 title claims abstract description 9
- 238000007789 sealing Methods 0.000 claims abstract description 8
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 4
- 239000010959 steel Substances 0.000 claims abstract description 4
- 238000011109 contamination Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003518 caustics Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000010883 coal ash Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
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- Lift Valve (AREA)
Abstract
The utility model relates to a kind of manual backwashing filter device core assembly, screw plug (1) is connected with valve pocket (2), valve rod (3) is inserted into valve pocket (2) inside, valve pocket (2) is connected by steel wire key with high pressure valve pocket (5), between valve pocket (2) and high pressure valve pocket (5), be provided with valve seat, spool (4) is arranged on valve pocket (2) and high pressure valve pocket (5) inside, spring (6) is set between high pressure valve pocket (5) and spool (4), wherein the large end face of valve rod (3) is provided with groove (7), spool (4) is arranged with sealing ring in one end of sheathed spring (6), the end of spool (4) end and high pressure valve pocket (5) is provided with certain interval, at valve pocket (2) and spool (4), described valve seat and spool adopt conical surface seal between (4).The utility model stem movement resistance is little, and hand-operated direction valve reliable in action, flexible has improved the reliability of under high pressure motion sealing.
Description
Technical field
The utility model belongs to hand-operated direction valve field, is specifically related to a kind of manual backwashing filter device core assembly.
Background technology
At present domestic in colliery industry, hand-operated direction valve is one of important hydraulic control component of coal-mine hydraulic support.In the hydraulic control system of hydraulic support, control liquid flow path direction, realize lifting, the oil cylinder or very heavy flexible of column, so complete hydraulic support stand, move frame, the various feature operations such as pushing and sliding, anti-down and Sub-Level Caving.Because coal mine fully-mechanized mining working field condition is comparatively severe, there is a large amount of corrosive substances and coal ash, therefore very high to the performance of hand-operated direction valve and reliability requirement, but being subject to the restriction of the conditions such as seal form and material processing technique, there is the defects such as contamination resistance is poor, the inconvenience of folding dress in the hand-operated direction valve that down-hole is used at present.Particularly its spool parts is bulk form, is about to a plurality of spool parts in bulk and packs successively respectively valve body into, this spool install and dismounting more difficult, cannot change in down-hole, the while also easily to spool parts particularly obturator cause damage.The manual backwashing filter device core assembly of existing patent ZL201320296147.0 is because its sealing is poor, uneven at its inlet and working hole place pressurized, makes stem movement resistance little, and valve rod action is dumb, easily causes downhole production Frequent Accidents.
Summary of the invention
It is bad in order to solve existing seal spool that the utility model is exactly, and system pressure is uneven and proposed a kind of manual backwashing filter device core assembly.
The technical solution adopted in the utility model: a kind of manual backwashing filter device core assembly, it comprises screw plug 1, valve pocket 2, valve rod 3, spool 4, high pressure valve pocket 5 and spring 6, screw plug 1 is connected with valve pocket 2, valve rod 3 is inserted into the shank portion of valve pocket 2 inside and valve rod 3 through screw plug 1, valve pocket 2 is connected by steel wire key with high pressure valve pocket 5, between valve pocket 2 and high pressure valve pocket 5, be provided with valve seat, spool 4 is arranged on valve pocket 2 and high pressure valve pocket 5 inside, spring 6 is set between high pressure valve pocket 5 and spool 4, wherein the large end face of valve rod 3 is provided with groove 7, spool 4 is arranged with sealing ring in one end of sheathed spring 6, the end of spool 4 ends and high pressure valve pocket 5 is provided with certain interval, at valve pocket 2 and spool 4, between described valve seat and spool 4, adopt conical surface seal.
The utility model compared with prior art its beneficial effect is: the utility model is rational in infrastructure, easy to maintenance, has improved downhole production efficiency; The utility model between spool and high pressure valve pocket, be provided with feed flow flow to into gap, can make the pressure maintenance balance of pressure that the hydraulic pressure that enters at working hole produces spool outer face and step surface and spool left side, stem movement resistance is little, makes hand-operated direction valve reliable in action, flexible; Owing to adopting cone sealing between spool and valve rod, make hand-operated direction valve contamination resistance poor, improved the reliability of under high pressure motion sealing.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
The specific embodiment
As shown in Figure 1, a kind of manual backwashing filter device core assembly, it comprises screw plug 1, valve pocket 2, valve rod 3, spool 4, high pressure valve pocket 5 and spring 6, screw plug 1 is connected with valve pocket 2, valve rod 3 is inserted into the shank portion of valve pocket 2 inside and valve rod 3 through screw plug 1, valve pocket 2 is connected by steel wire key with high pressure valve pocket 5, between valve pocket 2 and high pressure valve pocket 5, be provided with valve seat, spool 4 is arranged on valve pocket 2 and high pressure valve pocket 5 inside, spring 6 is set between high pressure valve pocket 5 and spool 4, wherein the large end face of valve rod 3 is provided with groove 7, spool 4 is arranged with sealing ring in one end of sheathed spring 6, the end of spool 4 ends and high pressure valve pocket 5 is provided with certain interval, at valve pocket 2 and spool 4, between described valve seat and spool 4, adopt conical surface seal.
Claims (1)
1. a manual backwashing filter device core assembly, it comprises screw plug (1), valve pocket (2), valve rod (3), spool (4), high pressure valve pocket (5) and spring (6), it is characterized in that, screw plug (1) is connected with valve pocket (2), valve rod (3) is inserted into the shank portion of valve pocket (2) inside and valve rod (3) through screw plug (1), valve pocket (2) is connected by steel wire key with high pressure valve pocket (5), between valve pocket (2) and high pressure valve pocket (5), be provided with valve seat, spool (4) is arranged on valve pocket (2) and high pressure valve pocket (5) inside, spring (6) is set between high pressure valve pocket (5) and spool (4), wherein the large end face of valve rod (3) is provided with groove (7), spool (4) is arranged with sealing ring in one end of sheathed spring (6), the end of spool (4) end and high pressure valve pocket (5) is provided with certain interval, at valve pocket (2) and spool (4), described valve seat and spool adopt conical surface seal between (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420350201.XU CN203962006U (en) | 2014-06-30 | 2014-06-30 | Manual backwashing filter device core assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420350201.XU CN203962006U (en) | 2014-06-30 | 2014-06-30 | Manual backwashing filter device core assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203962006U true CN203962006U (en) | 2014-11-26 |
Family
ID=51922605
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420350201.XU Expired - Lifetime CN203962006U (en) | 2014-06-30 | 2014-06-30 | Manual backwashing filter device core assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203962006U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106151566A (en) * | 2016-08-30 | 2016-11-23 | 山西平阳广日机电有限公司 | A kind of core assembly of flexible sealing structure |
| CN106194232A (en) * | 2016-08-30 | 2016-12-07 | 山西平阳广日机电有限公司 | A kind of hand-operated valve core assembly |
| CN110833716A (en) * | 2019-09-30 | 2020-02-25 | 山西平阳广日机电有限公司 | Split detachable low-flow high-pressure filtering station |
-
2014
- 2014-06-30 CN CN201420350201.XU patent/CN203962006U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106151566A (en) * | 2016-08-30 | 2016-11-23 | 山西平阳广日机电有限公司 | A kind of core assembly of flexible sealing structure |
| CN106194232A (en) * | 2016-08-30 | 2016-12-07 | 山西平阳广日机电有限公司 | A kind of hand-operated valve core assembly |
| CN110833716A (en) * | 2019-09-30 | 2020-02-25 | 山西平阳广日机电有限公司 | Split detachable low-flow high-pressure filtering station |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141126 |