CN220668415U - Two-position three-way stop valve - Google Patents
Two-position three-way stop valve Download PDFInfo
- Publication number
- CN220668415U CN220668415U CN202321875103.3U CN202321875103U CN220668415U CN 220668415 U CN220668415 U CN 220668415U CN 202321875103 U CN202321875103 U CN 202321875103U CN 220668415 U CN220668415 U CN 220668415U
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- Prior art keywords
- valve core
- valve
- piston
- valve body
- utility
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- 238000007789 sealing Methods 0.000 claims description 11
- 230000003044 adaptive effect Effects 0.000 claims description 2
- 238000012797 qualification Methods 0.000 abstract description 3
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Fluid-Driven Valves (AREA)
Abstract
The utility model discloses a two-position three-way stop valve, which comprises a valve body, wherein a valve core assembly and a base are arranged in the valve body, and the valve core assembly is assembled into the valve body by connecting an end cover with the valve body; the valve core assembly comprises a valve core shaft, an upper valve core and a lower valve core; the base is arranged at the bottom of the valve body, and a spring is arranged between the base and the lower valve core; the upper end of the valve core shaft is connected with the upper valve core, and the upper valve core is movably connected with a piston. Because the piston and the upper valve core in the valve core assembly adopt a split structure, namely the piston and the upper valve core are divided into two parts, the processing difficulty of related parts is reduced, the qualification rate of the parts is improved, and the production cost is reduced.
Description
Technical Field
The utility model relates to the technical field of valves, in particular to a two-position three-way stop valve.
Background
For a shut-off valve, because the valve core assembly is required to be sealed radially and end-face, the coaxiality and the verticality of the valve core assembly are required to be high, otherwise the sealing performance and the service life of the valve are affected. In particular, when the valve element assembly is of an integral structure, the processing cost and the processing difficulty of the valve element assembly increase, for example, the valve element assembly on CN105276237B has the above problems.
Disclosure of Invention
The utility model aims to provide a two-position three-way stop valve so as to solve the problems in the prior art.
In order to achieve the above purpose, the present utility model provides the following technical solutions: a two-position three-way stop valve comprises a valve body, wherein a valve core assembly and a base are arranged in the valve body, and the valve core assembly is assembled into the valve body by connecting the valve body with an end cover; the valve core assembly comprises a valve core shaft, an upper valve core and a lower valve core; the base is arranged at the bottom of the valve body, and a spring is arranged between the base and the lower valve core; the upper end of the valve core shaft is connected with the upper valve core, and the upper valve core is movably connected with a piston.
As a preferable technical scheme of the utility model: the upper valve core is provided with a connecting hole facing one side of the piston, and the piston is connected with the connecting hole in an adaptive manner through a connecting column.
As a preferable technical scheme of the utility model: the outer wall surface of the piston is contacted with the inner wall of the valve body through a sealing ring.
As a preferable technical scheme of the utility model: the piston is also provided with a mounting groove, and the sealing ring is mounted in the mounting groove.
By adopting the technical scheme, the utility model has the beneficial effects that: because the piston and the upper valve core in the valve core assembly adopt a split structure, namely the piston and the upper valve core are divided into two parts, the processing difficulty of related parts is reduced, the qualification rate of the parts is improved, and the production cost is reduced.
Drawings
FIG. 1 is a schematic diagram of the main structure of the present utility model;
FIG. 2 is a schematic cross-sectional view of the present utility model;
FIG. 3 is an exploded view of the valve cartridge assembly of the present utility model;
fig. 4 is a schematic main structure of the piston of the present utility model.
In the figure: 1. an end cap; 2. a valve body; 3. a valve core assembly; 30. a valve core shaft; 31. a lower valve core; 32. a spring; 33. a base; 34. an upper valve core; 35. a piston; 36. a seal ring; 37. a connecting column; 38. and (5) connecting the columns.
Detailed Description
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model. In the description of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "front", "upper surface", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
Referring to fig. 1-4, an embodiment of the present utility model is provided: a two-position three-way stop valve, which comprises a valve body 2, wherein a valve core assembly 3 and a base 33 are arranged in the valve body 2, and the valve core assembly 3 is assembled into the valve body 2 by connecting the valve body 2 with an end cover 1; the valve core assembly 3 comprises a valve core shaft 30, an upper valve core 34 and a lower valve core 31; the base 33 is installed at the bottom of the valve body 2, and a spring 32 is further arranged between the base 33 and the lower valve core 31; the upper end of the valve core shaft 30 is connected with the upper valve core 34, and the upper valve core 34 is movably connected with a piston 35.
When the control port PA is filled with compressed air in specific operation, the upper cavity above the piston 35 pushes the valve core assembly 3 downwards under the action of air pressure, at the moment, the upper valve core 34 seals the upper valve port, the lower valve core 31 opens the lower valve port, at the moment, the P port is communicated with the A port, and the A port is closed with the R port;
when the control port PA discharges compressed air, the spring 32 pushes the valve core assembly 3 upwards to reset, at this time, the upper valve core 34 opens the upper valve port, the lower valve core 31 closes the lower valve port, the port P is closed with the port a, and the port a is communicated with the port R.
In summary, the device completes the two-position three-way function of the valve body, and as the piston 35 and the upper valve core 34 in the valve core assembly 3 adopt a split structure, namely the piston 35 and the upper valve core 34 are divided into two parts, the processing difficulty of related parts is reduced, the part qualification rate is improved, and the production cost is reduced.
Further, since the surface of the upper valve core 34 facing the piston 35 is provided with a connecting hole 37, the piston 35 is connected with the connecting hole in a matching manner through a connecting column 38. After the connecting post 38 is inserted into the connecting hole, the assembly of the piston 35 and the upper valve core 4 can be completed, and the length of the connecting post 38 is longer than the stroke distance of the piston 35, so that the piston 35 can fall off during sliding.
On the basis of the above-mentioned scheme, in order to enhance the tightness between the piston 35 and the valve body 2, the outer wall surface of the piston 35 is contacted with the inner wall of the valve body 2 through a sealing ring 36, wherein the sealing ring 36 is preferably a pneumatic piston sealing ring.
Further, since the piston 35 is further provided with the mounting groove 38, and the sealing ring 36 is mounted in the mounting groove 38, the sealing ring 36 can be reliably fixed on the piston 35 by using the mounting groove 38, so as to avoid the problem that the sealing ring 36 falls off when the piston 35 works.
The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings, but the present utility model is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the utility model, and yet fall within the scope of the utility model.
Claims (4)
1. A two-position three-way stop valve is characterized in that: the valve comprises a valve body (2), wherein a valve core assembly (3) and a base (33) are arranged in the valve body (2), and the valve core assembly (3) is assembled into the valve body (2) by being connected with the valve body (2) through an end cover (1);
the valve core assembly (3) comprises a valve core shaft (30), an upper valve core (34) and a lower valve core (31); the base (33) is arranged at the bottom of the valve body (2), and a spring (32) is arranged between the base (33) and the lower valve core (31);
the upper end of the valve core shaft (30) is connected with the upper valve core (34), and the upper valve core (34) is movably connected with a piston (35) which is arranged.
2. A two-position three-way shut-off valve according to claim 1, wherein: the upper valve core (34) is provided with a connecting hole facing one surface of the piston (35), and the piston (35) is connected with the connecting hole in an adaptive manner through a connecting column (37).
3. A two-position three-way shut-off valve according to claim 1 or 2, characterized in that: the outer wall surface of the piston (35) is contacted with the inner wall of the valve body (2) through a sealing ring (36).
4. A two-position three-way shut-off valve according to claim 3, wherein: the piston (35) is also provided with a mounting groove (38), and the sealing ring (36) is mounted in the mounting groove (38).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321875103.3U CN220668415U (en) | 2023-07-17 | 2023-07-17 | Two-position three-way stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321875103.3U CN220668415U (en) | 2023-07-17 | 2023-07-17 | Two-position three-way stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220668415U true CN220668415U (en) | 2024-03-26 |
Family
ID=90331101
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321875103.3U Active CN220668415U (en) | 2023-07-17 | 2023-07-17 | Two-position three-way stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220668415U (en) |
-
2023
- 2023-07-17 CN CN202321875103.3U patent/CN220668415U/en active Active
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |