CN212003801U - Special equipment check valve - Google Patents
Special equipment check valve Download PDFInfo
- Publication number
- CN212003801U CN212003801U CN202020652919.XU CN202020652919U CN212003801U CN 212003801 U CN212003801 U CN 212003801U CN 202020652919 U CN202020652919 U CN 202020652919U CN 212003801 U CN212003801 U CN 212003801U
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- hole
- valve
- check valve
- plug
- cylindrical section
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Abstract
The utility model discloses a professional equipment check valve, including valve body, end cap, case the through-hole has been seted up at the center of valve body, the through-hole comprises first cylinder section, second cylinder section and the toper changeover portion of connection between first cylinder section and second cylinder section, and wherein the diameter of first cylinder section is greater than second cylinder section, the end cap with the upper portion threaded connection of first cylinder section, just the end cap is cavity, the case install in just support in the through-hole is in on the conical surface of toper changeover portion the butt has the spring between end cap and the case the middle part cover of case is equipped with first sealing washer, this first sealing washer with the conical surface in close contact with of through-hole. Convenient to use, the usage is multi-functional, and oil gas all can, compares with the check valve on the market, and occupation space is little, and the mountable is inside equipment, hidden installation.
Description
Technical Field
The utility model relates to fluid control valve production technical field, concretely relates to professional equipment check valve.
Background
Check valves are also known as check valves or check valves. For preventing reverse flow of oil in hydraulic systems or for preventing reverse flow of compressed air in pneumatic systems. However, the existing check valves occupy a large installation space when in use, and most of the check valves have single functions, and different use scenes need different check valves.
Disclosure of Invention
The utility model aims at providing a special equipment check valve, have that required installation space is little, the big operation of flow characteristics such as reliable.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a professional equipment check valve which the key lies in: the valve comprises a valve body, a plug and a valve core, wherein a through hole is formed in the center of the valve body, the through hole is composed of a first cylindrical section, a second cylindrical section and a conical transition section connected between the first cylindrical section and the second cylindrical section, the diameter of the first cylindrical section is larger than that of the second cylindrical section, the plug is in threaded connection with the upper portion of the first cylindrical section, the plug is hollow, the valve core is arranged in the through hole and supported on the conical surface of the conical transition section, a spring is abutted between the plug and the valve core, a first sealing ring is sleeved in the middle of the valve core, and the first sealing ring is in close contact with the conical surface of the through hole.
Further, the valve core comprises a first cylindrical portion, a conical portion and a second cylindrical portion, the first cylindrical portion is located in the first cylindrical section, the upper portion of the conical portion is located in the conical transition section, and the lower portion of the conical portion and the second conical portion are located in the second cylindrical section.
Furthermore, an annular first mounting groove is formed in the outer wall of the conical portion, and the first sealing ring is clamped in the first mounting groove.
Further, the first sealing ring is an O-shaped sealing ring.
Furthermore, a second mounting groove is formed in the outer side wall of the middle of the valve body, and a second sealing ring is arranged in the second mounting groove.
Furthermore, the cross section of the plug is T-shaped, and when the plug is installed on the valve body, the transverse part of the plug is supported on the end face of the valve body on the peripheral side of the through hole.
The utility model discloses a show the effect and be:
the check valve only needs to be installed in a pipeline space, the two ends of the check valve are limited, meanwhile, the size of the pipeline is matched with the outer diameter of the check valve, the installation environment can be sealed, the structure is simple, the installation and the use are convenient, the use is multifunctional, oil and gas can be used, and other sealing can be realized only by changing the material of a sealing ring; compared with the one-way valve on the market, the occupied space is small, and the one-way valve can be installed inside equipment in a hidden mode.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a cross-sectional view of the present invention;
fig. 3 is a cross-sectional view of the valve body.
Detailed Description
The following provides a more detailed description of the embodiments and the operation of the present invention with reference to the accompanying drawings.
As shown in fig. 1 to 3, a special device check valve comprises a valve body 1, a plug 2, and a valve core 3, wherein a through hole 4 is formed in the center of the valve body 1, the through hole 4 is composed of a first cylindrical section 41, a second cylindrical section 42, and a tapered transition section 43 connected between the first cylindrical section 41 and the second cylindrical section 42, wherein the diameter of the first cylindrical section 41 is larger than that of the second cylindrical section 42, the plug 2 is in threaded connection with the upper portion of the first cylindrical section 41, the plug 2 is hollow, the valve core 3 is installed in the through hole 4 and supported on the tapered surface of the tapered transition section 43, a spring 5 is abutted between the plug 2 and the valve core 3, a first sealing ring 6 is sleeved in the middle of the valve core 3, the first sealing ring is in tight contact with the tapered surface of the through hole 4, a second installation groove 7 is formed in the outer side wall of the middle of the valve body 1, a second seal ring 8 is provided in the second mounting groove 7.
Referring to fig. 2, the spool 3 includes a first cylindrical portion 31, a tapered portion 32, and a second cylindrical portion 33, the first cylindrical portion 31 being located in the first cylindrical section 41, an upper portion of the tapered portion 32 being located in the tapered transition section 43, and a lower portion of the tapered portion 32 and the second tapered portion 32 being located in the second cylindrical section 42.
Furthermore, an annular first mounting groove 34 is formed in the outer wall of the tapered portion 32, and the first seal ring 6 is clamped in the first mounting groove 34.
In this example, the first seal ring 6 is an O-ring.
Preferably, the plug 2 has a T-shaped cross section, and when the plug 2 is mounted on the valve body 1, the lateral portion thereof is supported on the end surface of the valve body 1 on the peripheral side of the through hole 4.
This check valve only needs to install in a pipeline space, and both ends are spacing, and the pipeline size matches with this check valve external diameter simultaneously, and the installation environment can seal, simple structure, installation convenient to use.
The technical scheme provided by the utility model is introduced in detail above. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.
Claims (6)
1. A special equipment check valve which is characterized in that: the valve comprises a valve body, a plug and a valve core, wherein a through hole is formed in the center of the valve body, the through hole is composed of a first cylindrical section, a second cylindrical section and a conical transition section connected between the first cylindrical section and the second cylindrical section, the diameter of the first cylindrical section is larger than that of the second cylindrical section, the plug is in threaded connection with the upper portion of the first cylindrical section, the plug is hollow, the valve core is arranged in the through hole and supported on the conical surface of the conical transition section, a spring is abutted between the plug and the valve core, a first sealing ring is sleeved in the middle of the valve core, and the first sealing ring is in close contact with the conical surface of the through hole.
2. The special equipment check valve of claim 1, wherein: the valve core comprises a first cylindrical part, a conical part and a second cylindrical part, the first cylindrical part is positioned in the first cylindrical section, the upper part of the conical part is positioned in the conical transition section, and the lower part of the conical part and the second conical part are positioned in the second cylindrical section.
3. The special equipment check valve of claim 2, wherein: the outer wall of the conical part is provided with a first annular mounting groove, and the first sealing ring is clamped in the first mounting groove.
4. The special equipment check valve of any one of claims 1 to 3, characterized in that: the first sealing ring is an O-shaped sealing ring.
5. The special equipment check valve of claim 1, wherein: and a second mounting groove is formed in the outer side wall of the middle part of the valve body, and a second sealing ring is arranged in the second mounting groove.
6. The special equipment check valve of claim 1, wherein: the cross section of the plug is T-shaped, and when the plug is installed on the valve body, the transverse part of the plug is supported on the end face of the valve body on the peripheral side of the through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020652919.XU CN212003801U (en) | 2020-04-26 | 2020-04-26 | Special equipment check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020652919.XU CN212003801U (en) | 2020-04-26 | 2020-04-26 | Special equipment check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212003801U true CN212003801U (en) | 2020-11-24 |
Family
ID=73407201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020652919.XU Active CN212003801U (en) | 2020-04-26 | 2020-04-26 | Special equipment check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212003801U (en) |
-
2020
- 2020-04-26 CN CN202020652919.XU patent/CN212003801U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |