CN205824289U - Linear steering formula check valve - Google Patents
Linear steering formula check valve Download PDFInfo
- Publication number
- CN205824289U CN205824289U CN201620675345.1U CN201620675345U CN205824289U CN 205824289 U CN205824289 U CN 205824289U CN 201620675345 U CN201620675345 U CN 201620675345U CN 205824289 U CN205824289 U CN 205824289U
- Authority
- CN
- China
- Prior art keywords
- valve pocket
- spool
- valve
- spring
- circular port
- 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 - Fee Related
Links
- 238000007789 sealing Methods 0.000 claims description 9
- 238000010030 laminating Methods 0.000 abstract description 2
- 239000012530 fluid Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Landscapes
- Check Valves (AREA)
Abstract
The utility model discloses a kind of linear steering formula check valve, include valve pocket and the spool being arranged in valve pocket, one end of valve pocket has circular port, the outer end of spool be pyramidal structure and be inserted into valve pocket circular port in, the maximum gauge of the outer end pyramidal structure of spool is more than the diameter of circular port, its minimum diameter is less than the diameter of circular port, the inner end of spool is positioned at valve pocket and outer wall and fits with valve sleeving inner wall, the inner end of spool is provided with spring groove, spring it is provided with in spring groove, the inner of spring is supported with the bottom end face of spring groove and is closed, the outer end of spring is supported with the catch being fixed in valve pocket and is closed.The inner end of this utility model spool is positioned at valve pocket and realizes linear steering with valve sleeving inner wall laminating, if a certain section of diameter of this utility model pyramidal structure part and the circular port equal diameters of valve pocket, both can realize card and seal, and the axiality difficulty of processing of valve pocket and spool reduces, so greatly reducing the difficulty of processing of check valve.
Description
Technical field
This utility model relates to the check valve in fork truck lifting oil cylinder piston, specifically a kind of linear steering formula check valve.
Background technology
At present, the one-way valve structures in fork truck lifting oil cylinder piston is various, and application also ratio is wide.But, major part is single
To valve arrangement as it is shown in figure 1, the cooperation face of spool 12 and valve pocket 11 is taper surface, spool 1 and valve pocket 2 coordinated face and coaxial
Degree requires higher, and the groove sealing O 13 also compares high with the surface smoothness requirements of the conical surface, and difficulty of processing is big, often
Obligatory point between individual part is the most more, occurs that fit tolerance is difficult to control to etc. problem, causes leakage of oil point more, be substantially reduced
The effect of one-way sealing.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of linear steering formula check valve, valve pocket and spool and uses line
Property conical surface seal, have O and piston inner hole to realize static seal outside valve pocket, both play the work of the one-way sealing of valve jointly
With.
The technical solution of the utility model is:
Linear steering formula check valve, includes valve pocket and the spool being arranged in valve pocket, and one end of described valve pocket has
Circular port, the outer end of described spool be pyramidal structure and be inserted into valve pocket circular port in, the outer end taper knot of spool
The maximum gauge of structure is more than the diameter of circular port, and its minimum diameter is less than the diameter of circular port, and the inner end of spool is positioned at valve pocket
Interior and outer wall is fitted with valve sleeving inner wall, and the inner end of spool is provided with spring groove, is provided with spring in spring groove, the inner of spring
Supporting with the bottom end face of spring groove and close, the outer end of spring is supported with the catch being fixed in valve pocket and is closed.
It is provided with the seal groove of annular on the outer wall of described valve pocket, in described seal groove, is provided with sealing ring.
The lateral part being positioned at catch in described valve pocket is fixedly installed back-up ring.
Advantage of the present utility model:
The inner end of this utility model spool is positioned at valve pocket and outer wall and realizes linear steering, this reality with valve sleeving inner wall laminating
As long as by the circular port equal diameters of a certain section of diameter of novel pyramidal structure part Yu valve pocket, both can realize card and close
Envelope, it is to avoid the conical surface of original valve pocket and spool must the problem of gluing, sealing completely, and the axiality of valve pocket and spool adds
Work difficulty reduces, so greatly reducing the difficulty of processing of check valve；Sealing ring on this utility model valve pocket outer wall and piston
Endoporus realizes static seal, and the effect of check valve one-way sealing is played in the combination that seals with spool and valve pocket.
Accompanying drawing explanation
Fig. 1 is existing check valve profile.
Fig. 2 is profile of the present utility model.
Fig. 3 is the section of structure that this utility model is installed in oil cylinder.
Fig. 4 is the structural representation of this utility model spool.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of this utility model rather than whole
Embodiment.Based on the embodiment in this utility model, those of ordinary skill in the art are not under making creative work premise
The every other embodiment obtained, broadly falls into the scope of this utility model protection.
See Fig. 2, linear steering formula check valve, the spool 2 include valve pocket 1, being arranged in valve pocket 1, is fixed in valve pocket 1
Catch 3 and back-up ring 4 and be arranged at the sealing ring 5 in valve pocket 1 outer wall seal groove, back-up ring 4 is positioned at the lateral part of catch 3, valve
One end of set 1 has circular port 6, in the outer end 21 (see Fig. 4) of spool 2 is pyramidal structure and the circular port 6 being inserted into valve pocket,
The maximum gauge of outer end 21 pyramidal structure of spool 2 is more than the diameter of circular port 6, and its minimum diameter is straight less than circular port 6
Footpath, the inner end of spool 2 is positioned at valve pocket 1 and outer wall and fits with valve pocket 1 inwall, and the inner end of spool 2 is provided with spring groove 22
(see Fig. 4), the bottom end face being provided with spring 7, the inner of spring 7 and spring groove 22 in spring groove 22 supports conjunction, the outer end of spring 7
Support with the catch 3 being fixed in valve pocket 1 and close.
Seeing Fig. 3, oil cylinder is during hoisting, and fluid acts on check valve, by the active force of fluid, outside spool 2
The circular port 6 of end 21 pyramidal structure and valve pocket is tightly fitted, and check valve 10 fully seals；When piston the most slowly moves, on
Chamber 8 gradually reduces gas, and the pressure of epicoele 8 is gradually increased, and check valve 10 is not switched under normal circumstances, when the pressure of epicoele 8
The when that power being more than the active force of hoist pressure and the spring 7 of cavity of resorption 9, spool 2 can be promoted, gas or the fluid of epicoele 8 are led to
Crossing check valve 10 and enter cavity of resorption 9, then unnecessary when oil cylinder drops to bottom gas or fluid enter in fuel tank by oil duct,
The most upper and lower chamber can reach a pressure balance makes oil cylinder normally work.
Embodiment the most of the present utility model, for the ordinary skill in the art,
It is appreciated that in the case of without departing from principle of the present utility model and spirit and these embodiments can be carried out multiple change, repair
Changing, replace and modification, scope of the present utility model is defined by the appended claims and the equivalents thereof.
Claims (3)
1. linear steering formula check valve, includes valve pocket and the spool being arranged in valve pocket, it is characterised in that: described valve pocket
One end has circular port, the outer end of described spool be pyramidal structure and be inserted into valve pocket circular port in, the outer end of spool
The maximum gauge of portion's pyramidal structure is more than the diameter of circular port, and its minimum diameter is less than the diameter of circular port, the inner end of spool
Being positioned at valve pocket and outer wall to fit with valve sleeving inner wall, the inner end of spool is provided with spring groove, is provided with spring, bullet in spring groove
The inner of spring is supported with the bottom end face of spring groove and is closed, and the outer end of spring is supported with the catch being fixed in valve pocket and closed.
Linear steering formula check valve the most according to claim 1, it is characterised in that: it is provided with on the outer wall of described valve pocket
The seal groove of annular, is provided with sealing ring in described seal groove.
Linear steering formula check valve the most according to claim 1, it is characterised in that: it is positioned at outside catch in described valve pocket
Sidepiece is fixedly installed back-up ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620675345.1U CN205824289U (en) | 2016-06-30 | 2016-06-30 | Linear steering formula check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620675345.1U CN205824289U (en) | 2016-06-30 | 2016-06-30 | Linear steering formula check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205824289U true CN205824289U (en) | 2016-12-21 |
Family
ID=57566645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620675345.1U Expired - Fee Related CN205824289U (en) | 2016-06-30 | 2016-06-30 | Linear steering formula check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205824289U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110043696A (en) * | 2019-03-20 | 2019-07-23 | 合肥壹点通信息科技有限公司 | A kind of hydraulic pressure one-way control valve and its device for machining valve core |
| CN113323934A (en) * | 2021-05-26 | 2021-08-31 | 江苏八方动力机械有限公司 | Novel check valve component |
| CN113664519A (en) * | 2021-07-12 | 2021-11-19 | 青岛泽昊汽车配件有限公司 | Automatic assembling system for one-way valve at end part of lifting sleeve |
-
2016
- 2016-06-30 CN CN201620675345.1U patent/CN205824289U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110043696A (en) * | 2019-03-20 | 2019-07-23 | 合肥壹点通信息科技有限公司 | A kind of hydraulic pressure one-way control valve and its device for machining valve core |
| CN113323934A (en) * | 2021-05-26 | 2021-08-31 | 江苏八方动力机械有限公司 | Novel check valve component |
| CN113664519A (en) * | 2021-07-12 | 2021-11-19 | 青岛泽昊汽车配件有限公司 | Automatic assembling system for one-way valve at end part of lifting sleeve |
| CN113664519B (en) * | 2021-07-12 | 2023-11-24 | 青岛泽昊汽车配件有限公司 | Automatic assembly system for one-way valve at end part of lifting sleeve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161221 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |