CN215830842U - Three-section type hydraulic valve core capable of enhancing stability of valve - Google Patents
Three-section type hydraulic valve core capable of enhancing stability of valve Download PDFInfo
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- CN215830842U CN215830842U CN202122302750.2U CN202122302750U CN215830842U CN 215830842 U CN215830842 U CN 215830842U CN 202122302750 U CN202122302750 U CN 202122302750U CN 215830842 U CN215830842 U CN 215830842U
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Abstract
The utility model discloses a three-section type hydraulic valve core capable of enhancing the stability of a valve, which comprises a valve core main body, and a first sealing convex part, a second sealing convex part and a third sealing convex part which are sequentially arranged on the valve core main body from left to right at intervals; the left ends of the first sealing convex part, the second sealing convex part and the third sealing convex part are all provided with first circular grooves, and the right ends of the first sealing convex part, the second sealing convex part and the third sealing convex part are all provided with second circular grooves; the first sealing convex part, the second sealing convex part and the third sealing convex part are provided with spiral grooves, the head ends of the spiral grooves are communicated with the first circular groove, and the tail ends of the spiral grooves are communicated with the second circular groove. The valve body has the advantages that partial oil can flow out by means of the first circular groove, the second circular groove and the spiral groove, kinetic energy of liquid is reduced, impact of the liquid on the valve core and the valve body can be avoided, vibration caused by impact is reduced, and accordingly use reliability of the valve body is improved.
Description
Technical Field
The utility model relates to the technical field of hydraulic control elements, in particular to a three-section type hydraulic valve core capable of enhancing the stability of a valve.
Background
In the field of industrial automation process control, a regulating valve receives a control signal output by a regulating control unit, and a final control element for changing process parameters such as medium flow, pressure and the like by means of power operation generally comprises a valve body, a valve seat in the valve body and a valve rod matched with the valve seat in an opening and closing mode. The working principle of the traditional plunger type hydraulic proportional valve is that the position of a valve core in a valve body is changed to control an oil way, and because the structure of the traditional plunger type hydraulic valve is simple, when a plunger moves to be communicated with the oil way, the whole valve body can vibrate due to the fact that a medium with high pressure difference erodes, and the stability is poor.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention is directed to the defects in the prior art, and the main object of the present invention is to provide a three-stage hydraulic valve core capable of enhancing the stability of a valve, which has a reasonable structure, and effectively solves the problem of vibration when the conventional plunger-type hydraulic valve communicates with an oil path.
In order to achieve the purpose, the utility model adopts the following technical scheme:
the utility model provides a can strengthen three-section hydraulic valve core of valve stability which characterized in that: the valve core comprises a valve core main body and a first sealing convex part, a second sealing convex part and a third sealing convex part which are sequentially arranged on the valve core main body from left to right at intervals; the left ends of the first sealing convex part, the second sealing convex part and the third sealing convex part are all provided with first circular grooves, and the right ends of the first sealing convex part, the second sealing convex part and the third sealing convex part are all provided with second circular grooves; the first sealing convex part, the second sealing convex part and the third sealing convex part are provided with spiral grooves, the head ends of the spiral grooves are communicated with the first circular groove, and the tail ends of the spiral grooves are communicated with the second circular groove.
As a preferred embodiment: the first sealing convex part, the second sealing convex part and the third sealing convex part extend along the axial direction of the valve core main body;
the first and third sealing lobes extend the same width, and the second sealing lobe extends a width 1/2 that is the width of the first sealing lobe.
As a preferred embodiment: the first sealing protrusion, the second sealing protrusion and the third sealing protrusion have the same diameter.
As a preferred embodiment: the width of the first circular groove is the same as that of the second circular groove, and the width of the spiral groove is 1/2 the width of the first circular groove.
As a preferred embodiment: the spiral groove comprises a first section of spiral groove and a second section of spiral groove,
the distance (A) between the adjacent turns of the first section of spiral groove is smaller than the distance (B) between the adjacent turns of the second section of spiral groove.
As a preferred embodiment: the bottom parts of the first circular groove and the second circular groove are arc-shaped, and the spiral groove is triangular.
Compared with the prior art, the utility model has obvious advantages and beneficial effects, and specifically, the technical scheme includes that: the valve mainly comprises a first annular groove, a second annular groove and a spiral groove, when an oil way needs to be opened, partial oil can flow out by means of the first annular groove, the second annular groove and the spiral groove, the kinetic energy of liquid is reduced, the impact of the liquid on a valve core and a valve body can be avoided, the vibration caused by the impact is reduced, and the use reliability of the valve body is improved;
meanwhile, in order to reduce the impact of the liquid flowing as much as possible, the spiral groove is composed of a first section of spiral groove and a second section of spiral groove with different distances, and the kinetic energy of the liquid can be further reduced.
To more clearly illustrate the structural features and effects of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
Drawings
FIG. 1 is a front view of a three-piece hydraulic valve cartridge according to a preferred embodiment of the present invention;
FIG. 2 is an enlarged partial view of the first sealing protrusion of the preferred embodiment of the present invention;
FIG. 3 is a schematic diagram of the operation of the three-piece hydraulic valve cartridge of the preferred embodiment of the present invention (partially schematic illustration of the first sealing land);
FIG. 4 is a further schematic illustration of the operation of FIG. 3;
fig. 5 is a further schematic illustration of the operation of fig. 4.
The attached drawings indicate the following:
10. valve body 11, first seal projection
12. Second seal projection 13, third seal projection
14. A first circular groove 15 and a second circular groove
16. Spiral groove 20, valve body
21. An oil inlet 22 and an oil outlet.
Detailed Description
Referring to fig. 1 to 5, which show specific structures of preferred embodiments of the present invention, a three-stage hydraulic valve core capable of enhancing stability of a valve includes a valve core main body 10, a first sealing protrusion 11, a second sealing protrusion 12, and a third sealing protrusion 13.
In the embodiment of the present application, the first sealing protrusion 11, the second sealing protrusion 12 and the third sealing protrusion 13 are sequentially arranged on the valve core main body 10 from left to right at intervals; the left ends of the first sealing convex part 11, the second sealing convex part 12 and the third sealing convex part 13 are all provided with a first circular groove 14, and the right ends are all provided with a second circular groove 15; the first sealing convex part 11, the second sealing convex part 12 and the third sealing convex part 13 are provided with spiral grooves 16, the head ends of the spiral grooves 16 are communicated with a first circular groove 14, and the tail ends of the spiral grooves 16 are communicated with a second circular groove 15. When the oil circuit is communicated, partial oil can flow out through the first circular groove, the spiral groove and the second circular groove and realize pressure relief, compared with the mode that the traditional plunger type hydraulic valve opens the plunger and instantly flows out the oil, the impact of the oil on the valve core and the valve body can be reduced, so that the kinetic energy of the oil is reduced, the impact of the oil is avoided, the valve core and the valve body are vibrated, the use stability and the reliability of the valve body can be improved, and the whole service life of the valve body can be prolonged.
Specifically, the first, second, and third seal protrusions 11, 12, and 13 extend in the axial direction of the valve body 10; the first sealing protrusion 11 and the third sealing protrusion 13 extend to the same width, and the second sealing protrusion 12 extends to a width 1/2 that is equal to the width of the first sealing protrusion 11. The diameters of the first sealing convex part 11, the second sealing convex part 12 and the third sealing convex part 13 are the same, which is beneficial to the manufacture and assembly of the valve core. The bottoms of the first circular groove 14 and the second circular groove 15 are arc-shaped, and the spiral groove 16 is triangular.
The widths of the first circular groove 14 and the second circular groove 15 are the same, and the width of the spiral groove 16 is 1/2 of the width of the first circular groove 14. Preferably, the spiral groove 16 includes a first section 161 and a second section 162, and a distance A between adjacent turns of the first section 161 is smaller than a distance B between adjacent turns of the second section 162.
Next, the operation principle of opening the oil passage by the first seal protrusion will be described as an example; as shown in fig. 3, the valve body 20 has an oil inlet 21 and an oil outlet 22, and the first sealing protrusion blocks the oil inlet in a normal state; as shown in fig. 4, when the first sealing convex part moves to the right, the oil outlet is communicated by the second annular groove, and then the oil in the oil inlet enters the oil outlet through the first annular groove and the spiral groove second annular groove; as shown in fig. 5, with the rightward translation of the first sealing convex portion, the oil inlet and the oil outlet are finally communicated.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that any minor modifications, equivalent changes and modifications made to the above embodiment according to the technical spirit of the present invention are within the technical scope of the present invention.
Claims (6)
1. The utility model provides a can strengthen three-section hydraulic valve core of valve stability which characterized in that: the valve core comprises a valve core main body and a first sealing convex part, a second sealing convex part and a third sealing convex part which are sequentially arranged on the valve core main body from left to right at intervals; the left ends of the first sealing convex part, the second sealing convex part and the third sealing convex part are all provided with first circular grooves, and the right ends of the first sealing convex part, the second sealing convex part and the third sealing convex part are all provided with second circular grooves; the first sealing convex part, the second sealing convex part and the third sealing convex part are provided with spiral grooves, the head ends of the spiral grooves are communicated with the first circular groove, and the tail ends of the spiral grooves are communicated with the second circular groove.
2. The three-piece hydraulic valve spool capable of enhancing valve stability of claim 1, wherein: the first sealing convex part, the second sealing convex part and the third sealing convex part extend along the axial direction of the valve core main body;
the first and third sealing lobes extend the same width, and the second sealing lobe extends a width 1/2 that is the width of the first sealing lobe.
3. The three-piece hydraulic valve spool capable of enhancing valve stability of claim 1, wherein: the first sealing protrusion, the second sealing protrusion and the third sealing protrusion have the same diameter.
4. The three-piece hydraulic valve spool capable of enhancing valve stability of claim 1, wherein: the width of the first circular groove is the same as that of the second circular groove, and the width of the spiral groove is 1/2 the width of the first circular groove.
5. The three-stage hydraulic valve spool according to claim 1 or 4 capable of enhancing valve stability, wherein: the spiral groove comprises a first section of spiral groove and a second section of spiral groove,
the distance (A) between the adjacent turns of the first section of spiral groove is smaller than the distance (B) between the adjacent turns of the second section of spiral groove.
6. The three-piece hydraulic valve spool capable of enhancing valve stability of claim 4, wherein: the bottom parts of the first circular groove and the second circular groove are arc-shaped, and the spiral groove is triangular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122302750.2U CN215830842U (en) | 2021-09-23 | 2021-09-23 | Three-section type hydraulic valve core capable of enhancing stability of valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122302750.2U CN215830842U (en) | 2021-09-23 | 2021-09-23 | Three-section type hydraulic valve core capable of enhancing stability of valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215830842U true CN215830842U (en) | 2022-02-15 |
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ID=80200737
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122302750.2U Active CN215830842U (en) | 2021-09-23 | 2021-09-23 | Three-section type hydraulic valve core capable of enhancing stability of valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215830842U (en) |
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2021
- 2021-09-23 CN CN202122302750.2U patent/CN215830842U/en active Active
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| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: No. 101, Building B16 #, Liandong Jinyu Industrial Center, No. 308, Section 2, Maqiaohe Road, Wangcheng Economic and Technological Development Zone, Changsha, Hunan 410203 Patentee after: Hunan Zhongtian Yunhang Technology Co.,Ltd. Address before: 523000 Room 101, No. 86, Luxi Road, Liaobu Town, Dongguan City, Guangdong Province Patentee before: Dongguan Zhongtian yunhang Technology Co.,Ltd. |
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| CP03 | Change of name, title or address |