CN202252121U - Air source control valve - Google Patents
Air source control valve Download PDFInfo
- Publication number
- CN202252121U CN202252121U CN2011203460719U CN201120346071U CN202252121U CN 202252121 U CN202252121 U CN 202252121U CN 2011203460719 U CN2011203460719 U CN 2011203460719U CN 201120346071 U CN201120346071 U CN 201120346071U CN 202252121 U CN202252121 U CN 202252121U
- Authority
- CN
- China
- Prior art keywords
- cover plate
- end cover
- joint
- control valve
- core bar
- 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
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- Lift Valve (AREA)
Abstract
The utility model discloses an air source control valve comprising a shell, a connector, a front end cover plate and a core rod, wherein the connector is fixedly connected with the shell and the front end cover plate is fixedly connected with the connector; the valve rod is in running fit with the shell, the connector and the front end cover plate; the valve rod is provided with a first air flue and a second air flue; the front end cover plate is provided with a first air inlet communicated with the first air flue, and the connector is further provided with a second air inlet; and the inner peripheral wall of the connector is provided with an annular air input groove which is communicated with the second air inlet and the second air flue. The air source control valve provided by the utility model is characterized in that the core rod is in running fit with the shell through a bearing; and the core rod is sealed together with the connector and the front end plate through sealing rings. The air source control valve has the characteristics of small swinging, convenience for installation and long service life.
Description
Technical field
The utility model relates to a kind of lathe and uses accessory, relates in particular to the source of the gas control valve that a kind of lathe is used.
Background technique
Existing source of the gas control valve, two bearings of its supporting core rod place respectively on former and later two parts (being housing and joint), and it is oversize to have length, and swing is big, and the shortcoming of difficult installation, can not guarantee the working life of source of the gas control valve.
Summary of the invention
The purpose of the utility model is to provide a kind of source of the gas control valve of swinging little, easy for installation and long service life.
In order to achieve the above object; The technological scheme of the utility model is: a kind of source of the gas control valve, comprise housing, joint, front end cover plate and core bar, and said joint is fixedly connected with housing; The front end cover plate is fixedly connected with joint; Core bar and housing, joint and front end cover plate are rotatably assorted, and offer first air flue and second air flue on the core bar, and the front end cover plate is provided with first suction port that communicates with first air flue; Also have second suction port on the said joint; Also have the annular air inlet duct that communicates with second suction port and second air flue on the inner circle wall of joint, its innovative point is: be rotatably assorted through bearing between said core bar and the housing, and seal through seal ring between core bar and joint and the front end cover plate.
Be rotatably assorted through two bearings between said core bar and the housing.
The tail end of said core bar is connected with the attaching nut.
After adopting said structure, owing to be rotatably assorted through bearing between said core bar and the housing, and seal through seal ring between core bar and joint and the front end cover plate.Bearing places on the same part, has effectively shortened entire length, swing little, easy for installation and long service life.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the other direction structural representation of the utility model.
Embodiment
The embodiment who provides below in conjunction with accompanying drawing does further detailed explanation to the utility model.
Shown in Fig. 1 ~ 2; A kind of source of the gas control valve of the utility model comprises housing 1, joint 2, front end cover plate 3 and core bar 4, and said joint 2 is fixedly connected with housing 1; Front end cover plate 3 is fixedly connected with joint 2; Core bar 2 is rotatably assorted with housing 1, joint 2 and front end cover plate 3, offers the first air flue 4-1 and the second air flue 4-2 on the core bar 4, and front end cover plate 3 is provided with the first suction port 3-1 that communicates with the first air flue 4-1; Also have the second suction port 2-1 on the said joint 2; Also have the annular air inlet duct 2-2 that communicates with the second suction port 2-1 and the second air flue 4-2 on the inner circle wall of joint 2, its innovative point is: be rotatably assorted through bearing 5 between said core bar 4 and the housing 1, and seal through seal ring 7 between core bar 4 and joint 2 and the front end cover plate 3.
Shown in Fig. 1 ~ 2, be rotatably assorted through two bearings 5 between said core bar 4 and the housing 1.Firm supporting.
Shown in Fig. 1 ~ 2, the tail end of said core bar 4 is connected with attaching nut 6.The convenient connection.
Claims (3)
1. source of the gas control valve; Comprise housing (1), joint (2), front end cover plate (3) and core bar (4); Said joint (2) is fixedly connected with housing (1); Front end cover plate (3) is fixedly connected with joint (2); Core bar (2) is rotatably assorted with housing (1), joint (2) and front end cover plate (3), offers first air flue (4-1) and second air flue (4-2) on the core bar (4), and front end cover plate (3) is provided with first suction port (3-1) that communicates with first air flue (4-1); Also have second suction port (2-1) on the said joint (2); Also have the annular air inlet duct (2-2) that communicates with second suction port (2-1) and second air flue (4-2) on the inner circle wall of joint (2), it is characterized in that: be rotatably assorted through bearing (5) between said core bar (4) and the housing (1), and seal through seal ring (7) between core bar (4) and joint (2) and the front end cover plate (3).
2. source of the gas control valve according to claim 1 is characterized in that: be rotatably assorted through two bearings (5) between said core bar (4) and the housing (1).
3. source of the gas control valve according to claim 1 is characterized in that: the tail end of said core bar (4) is connected with attaching nut (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203460719U CN202252121U (en) | 2011-09-16 | 2011-09-16 | Air source control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203460719U CN202252121U (en) | 2011-09-16 | 2011-09-16 | Air source control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202252121U true CN202252121U (en) | 2012-05-30 |
Family
ID=46113364
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203460719U Expired - Fee Related CN202252121U (en) | 2011-09-16 | 2011-09-16 | Air source control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202252121U (en) |
-
2011
- 2011-09-16 CN CN2011203460719U patent/CN202252121U/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120530 Termination date: 20200916 |