CN218523072U - Two-position three-way valve core assembly - Google Patents
Two-position three-way valve core assembly Download PDFInfo
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- CN218523072U CN218523072U CN202222262739.2U CN202222262739U CN218523072U CN 218523072 U CN218523072 U CN 218523072U CN 202222262739 U CN202222262739 U CN 202222262739U CN 218523072 U CN218523072 U CN 218523072U
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- valve sleeve
- valve core
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Abstract
The utility model relates to a two-position three-way valve core assembly, which comprises a plug, a valve sleeve, a hydraulic fluid port valve sleeve, a piston, a valve seat and a valve core; the plug and the oil port valve sleeve are respectively arranged at two ends of the valve sleeve, a valve seat is arranged at the joint of the oil port valve sleeve and the valve sleeve, the piston is arranged in the valve sleeve in a penetrating way, and the valve core is arranged in the valve sleeve and the oil port valve sleeve in a penetrating way; the piston is of an integrated structure and is arranged in the valve sleeve, a spring is arranged between the outer circumference of the valve core and the inner wall of the oil port valve sleeve, and the front end of the valve core is arranged in the valve sleeve in a penetrating way to generate hard sealing with the piston. The piston adopts an integral structure, so that the problem that thin-walled parts of the piston and the valve core are easy to break is solved; the piston and the valve core realize the sealing of the working position in a hard sealing mode, so that the anti-pollution capacity is stronger, and the safety and the stability are better; through adjusting plug and valve barrel structure, increase an O shape circle seal structure between plug and the valve barrel, prevent that plug department feed liquor from breaking the connection structure of ring plug and valve barrel, make the dismouting jamming of case subassembly, big screw hole on the piston, the convenient dismantlement.
Description
Technical Field
The utility model belongs to hydraulic pressure switching-over valve field, concretely relates to two-position three-way case subassembly.
Background
Along with the large-scale implementation and development of the coal mine fully-mechanized mining hydraulic support, the requirements of fully-mechanized mining work on the hydraulic support are stricter and stricter, the valve core assembly is used as an important element for controlling the underground coal mining support, and the sealing performance of the valve core assembly directly influences the safety and the production progress of underground coal mining production. Because a valve seat is generally arranged between two valve sleeves on the valve core assembly and is generally made of polyether-ether-ketone, and because the valve seat and the valve core are sealed in a point or line sealing mode, after the valve seat and the valve core are generally used for a period of time, coal dust can enter the valve core more or less, the abrasion of the valve seat at the sealing connection part is serious, the sealing performance of the valve core is reduced, and the production efficiency of underground coal mining equipment is seriously influenced.
Disclosure of Invention
In view of this, the present invention provides a two-position three-way valve core assembly.
In order to achieve the purpose, the technical scheme is as follows:
a two-position three-way valve core assembly comprises a plug, a valve sleeve, a pressure oil port valve sleeve, a piston, a valve seat and a valve core;
the plug and the oil port valve sleeve are respectively arranged at two ends of the valve sleeve, a valve seat is arranged at the joint of the oil port valve sleeve and the valve sleeve, the piston is arranged in the valve sleeve in a penetrating manner, and the valve core is arranged in the valve sleeve and the oil port valve sleeve in a penetrating manner;
the piston is of an integrated structure and is arranged in the valve sleeve, a spring is arranged between the outer circumference of the valve core and the inner wall of the oil port valve sleeve, and the front end of the valve core penetrates through the valve sleeve to generate hard sealing with the piston.
As a further improvement of the utility model, an O-shaped ring is installed at the joint of the plug and the valve sleeve.
As the utility model discloses further improvement, set up the screw hole on the piston is close to the one end section intermediate position of case, conveniently dismantle the piston.
As a further improvement, the sealing strip on the valve seat and the valve core is contacted to realize sealing.
As a further improvement, the valve sleeve inner wall is embedded with a sealing ring, and the sealing ring is in sealing contact with the outer wall of the piston.
As a further improvement, the chamfer inclined plane of the front end of the piston is sealed with the hard contact of the inner end of one end of the valve core.
The utility model has the advantages that:
the piston of the utility model adopts an integral structure, the length of the valve core is reduced, and the problem that the thin-wall parts of the piston and the valve core in the existing valve core component are easy to break is solved;
the piston and the valve core are made of stainless steel materials, and the sealing of the working position is realized in a hard sealing mode, so that the anti-fouling capacity is higher than that of the original soft sealing structure, and the safety and the stability are better;
through adjusting plug and valve barrel structure, increase an O shape circle seal structure between plug and the valve barrel, prevent that plug department feed liquor from breaking the connection structure of ring plug and valve barrel, make the dismouting jamming of case subassembly, big screw hole on the piston, the convenient dismantlement.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification. In the drawings:
fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Please refer to fig. 1:
a two-position three-way valve core assembly comprises a plug 1, a valve sleeve 2, a pressure oil port valve sleeve 3, a piston 4, a valve seat 5 and a valve core 6;
the plug 1 and the oil pressure port valve sleeve 3 are respectively arranged at two ends of the valve sleeve 2, an O-shaped ring 7 is arranged at the joint of the plug 1 and the valve sleeve 2, a valve seat 5 is arranged at the joint of the oil pressure port valve sleeve 3 and the valve sleeve 2, the valve seat 5 is contacted with a sealing strip 61 on the valve core 6 to realize sealing, the piston 4 is arranged in the valve sleeve 2 in a penetrating manner, the valve core 6 is arranged in the valve sleeve 2 and the oil pressure port valve sleeve 3 in a penetrating manner, and a threaded hole 41 is formed in the middle position of the section of one end, close to the valve core 6, of the piston 4, so that the piston 4 is convenient to disassemble;
the piston 4 is of an integrated structure and is arranged in the valve sleeve 2, a spring 8 is arranged between the outer circumference of the valve core 6 and the inner wall of the oil pressure port valve sleeve 3, the front end of the valve core 6 penetrates through the valve sleeve 2 to generate hard sealing with the piston 4, a sealing ring 21 is embedded on the inner wall of the valve sleeve 2, the sealing ring 21 is in sealing contact with the outer wall of the piston 4, and a chamfer inclined plane at the front end of the piston 4 is in hard contact sealing with an inner port at one end of the valve core 6.
The piston 4 in the valve core 6 assembly adopts an integral structure, the length of the valve core 6 is reduced, and the problem that thin-walled parts of the piston 4 and the valve core 6 in the existing valve core 6 assembly are easy to break is solved; the piston 4 and the valve core 6 are made of stainless steel materials, and the working position is sealed in a hard sealing mode, so that the anti-pollution capability is higher than that of the original soft sealing structure, and the safety and the stability are better; according to a new sealing structure, the structures of the plug 1, the valve sleeve 2, the valve seat 5, the oil pressure port valve sleeve 3 and the spring 8 are adjusted, and the opening degrees of a liquid inlet, a liquid outlet and a working port are increased, so that the flow is increased to 500L/min; through adjusting plug 1 and valve barrel 2 structure, increase the 7 seal structure of O shape circle between plug 1 and the valve barrel 2, prevent that plug 1 department's feed liquor from destroying the connection structure of plug 1 and valve barrel 2, make 6 subassemblies of case dismouting jamming, screw hole 41 on the piston 4, the convenient dismantlement.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A two-position three-way valve core assembly comprises a plug, a valve sleeve and an oil pressing port valve sleeve, and is characterized by further comprising a piston, a valve seat and a valve core;
the plug and the oil port valve sleeve are respectively arranged at two ends of the valve sleeve, a valve seat is arranged at the joint of the oil port valve sleeve and the valve sleeve, the piston is arranged in the valve sleeve in a penetrating manner, and the valve core is arranged in the valve sleeve and the oil port valve sleeve in a penetrating manner;
the piston is of an integrated structure and is arranged in the valve sleeve, a spring is arranged between the outer circumference of the valve core and the inner wall of the oil port valve sleeve, and the front end of the valve core penetrates through the valve sleeve to generate hard sealing with the piston.
2. The two-position three-way valve core assembly of claim 1, wherein an O-ring is mounted at the connection of the plug and the valve sleeve.
3. The two-position three-way valve core assembly according to claim 1, wherein a threaded hole is formed in the middle of the section of one end, close to the valve core, of the piston, so that the piston is convenient to disassemble.
4. The two-position, three-way valve core assembly of claim 1, wherein the valve seat is in contact with a sealing band on the valve core to effect a seal.
5. The two-position three-way valve core assembly as claimed in claim 1, wherein a sealing ring is embedded on the inner wall of the valve sleeve and is in sealing contact with the outer wall of the piston.
6. The two-position, three-way valve core assembly of claim 1, wherein the chamfered ramp at the front end of the piston is sealed in hard contact with an internal port at one end of the valve core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222262739.2U CN218523072U (en) | 2022-08-26 | 2022-08-26 | Two-position three-way valve core assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222262739.2U CN218523072U (en) | 2022-08-26 | 2022-08-26 | Two-position three-way valve core assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218523072U true CN218523072U (en) | 2023-02-24 |
Family
ID=85245184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222262739.2U Active CN218523072U (en) | 2022-08-26 | 2022-08-26 | Two-position three-way valve core assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218523072U (en) |
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2022
- 2022-08-26 CN CN202222262739.2U patent/CN218523072U/en active Active
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