CN2883842Y - Locking means for open/close state of valve - Google Patents
Locking means for open/close state of valve Download PDFInfo
- Publication number
- CN2883842Y CN2883842Y CN 200520104291 CN200520104291U CN2883842Y CN 2883842 Y CN2883842 Y CN 2883842Y CN 200520104291 CN200520104291 CN 200520104291 CN 200520104291 U CN200520104291 U CN 200520104291U CN 2883842 Y CN2883842 Y CN 2883842Y
- Authority
- CN
- China
- Prior art keywords
- valve
- valve rod
- steel ball
- locking device
- closing state
- 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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- Taps Or Cocks (AREA)
Abstract
The utility model discloses a locking device for opening and closing of the valve, which is composed of a valve rod (1) with threads and a valve cap (2) with radical tooth. A plurality of symmetrical pores with small steel ball inside (3) are arranged at the interface of the valve rod (1) and the valve cap (2). The internal threaded holes of the valve rod (1) is screw in an inner triangle fixing bolt (4), the taper contact small steel ball (3). The locking of the valve for implementation of opening and closing is realized by outward squeezing of small steel ball (3) by rotation of fix bolts (4); in case of regulation of valve, rotate bolt (4) in reversed direction to rotate valve rod, and the tooth surface of the valve cap (2) is to push steel ball (3) back to the pores of the valve rod (1), the valve structure is used for lock the valve rod at optional position with high locking accuracy and simple structure for easy manufacture.
Description
Technical field
This practicality newly relates to a kind of locking device of interior lifting valve opening and closing state, and it comprises valve rod, valve gap, Cock screw, little steel ball.
Background technique
At present the locking device of the disclosed valve opening and closing state of prior art mainly is utilize key and groove to match a purpose that incompatible realization locks, and its shortcoming is to lock at an arbitrary position.In addition, it is very little that the locking device of this structure can not be done, and can not be applied on the less valve.
The patent No. is the utility model patent of z103026409, discloses a kind of locking device of valve, and this locking device mainly is made up of valve body overcoat, spring, inside magnet column, fixed cover and valve rod.Block the valve body overcoat by the positioning action of inside magnet column, valve rod can not arbitrarily be twisted, thereby reach the purpose of Locked valve.The locking device of this structure need utilize magnet, spring that external force is provided, thereby complex structure, cost height, is difficult to processing and fabricating, and also having a major defect is to lock being under two kinds of situations of closed condition and maximum opening state.
The model utility content
To be solved in the utility model provide a kind of simple in structure, can lock, not need magnet, spring that the locking device of the valve opening and closing state of external force is provided at an arbitrary position, this model utility is to realize locking and unlatching with Cock screw of key precession, does not use this private key to be difficult to open.It is very little that this model utility can be processed according to need.
For addressing the above problem, the utility model radially processes several uniform apertures at the position that valve rod combines with valve gap, little firm pearl is housed in each aperture, process radially straight-tooth week in valve gap and the position that valve rod combines, the section configuration of straight-tooth is 90 °, and valve rod processes internal thread vertically, with Screw of key precession, be used for radially pushing little steel ball, little steel ball is embedded in the straight-tooth of valve gap.
As further improvement of the utility model, be that the working surface of Cock screw is made the conical surface, be beneficial to Cock screw when axis moves down, its component radially pushes little steel ball, and little steel ball is embedded in the interior straight-tooth of valve gap.
Improving as of the present utility model another, is that the keyhole of Cock screw is made interior triangle, and the shape of its shape and Valve key is complementary, and its purpose is not use private key to be difficult to open locking device.
The utility model has also done an improvement to valve gap, interior week process straight-tooth along valve gap, its of effect is the embedding that is beneficial to little steel ball when Locked valve opens and closes, another is when needs change the keying state of valve, the inclined-plane of interior straight-tooth can squeeze back small ball in the aperture of valve rod, in order to finish above-mentioned functions, the section configuration of straight-tooth is 90.Shi Jiagong, calculating most convenient, using effect is also best.Certainly the straight-tooth section configuration also can be made other angle, but its using effect is good not as 90 ° of straight-tooth, and it is also convenient not as 90 ° of straight-tooth to calculate, process.
As a preferred structure of model utility, be that little steel ball is made small ball, the quantity of small ball is determined according to the ratio of valve rod wall thickness and small ball diameter in each hole, can be one, also can be several, processing is simple like this, open-close convenient.
As another preferred structure of the present utility model, be that little steel ball is made working surface is spherical small column, like this size adjust easily, compact structure, usability is good.
In the middle of said structure, the valve gap radially degree of depth of straight-tooth is slightly less than the radius of small ball, guarantees that major part is stayed in the aperture of valve rod when small ball embeds valve gap, and small ball is pushed back in the aperture easily when adjusting the keying state of valve like this.
According to the above, the locking device structure of this model utility valve opening and closing state is simple, locking precision height, is applicable to the valve of large, medium and small various models.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further details.
Fig. 1 is the sectional view of the locking device of model utility valve opening and closing state.
Fig. 2 is the plan view of the locking device of model utility valve opening and closing state.
Embodiment
By Fig. 1 valve opening and closing state the locking device sectional view and the plan view of Fig. 2 valve opening and closing state as can be known, the locking device of valve opening and closing state is made up of valve rod 1, valve gap 2, little steel ball 3, screw 4, valve rod 1 radially processes several symmetrical apertures at the position that combines with valve gap 2, put into small ball 3 in the aperture, the quantity of small ball 3 is determined according to the wall thickness of valve rod 1 and the ratio of steel ball 3 diameters in each hole.Valve gap 2 with position that valve rod 1 combines in process interior straight-tooth week.Valve rod 1 processes internal thread vertically, is threaded to the small ball place with a Cock screw 4, and the conical surface contacts with small ball.When needing the keying state of Locked valve, continue backspin Cock screw 4, the conical surface of Cock screw 4 component radially will be small ball 3 by extruding in the hole in the straight-tooth that embeds valve gap 2, thereby reach the purpose of locking valve rod 1.When needs are adjusted the keying state of valve, counterrotating Cock screw 4, rotary valve rod 1 then, because the working surface of straight-tooth is the inclined-plane in the valve gap 2, will there be an active force radially on this inclined-plane to small ball 3, this active force can push back small ball 3 in the aperture, and valve rod 1 just can be adjusted arbitrarily.
As the another kind of mode of execution of model utility valve opening and closing state locking device is that the small column that working surface does glomeration of packing in the hole replaces little firm ball 3, this mode of execution no matter the wall thickness of valve rod 1 how, small column quantity in each hole can be one, this mode compact structure is not subjected to the valve rod influence of wall thickness.
Claims (6)
1, a kind of locking device of valve opening and closing state, it comprises valve rod (1), valve gap (2), it is characterized in that: valve rod (1) radially processes several uniform apertures at the position that combines with valve gap (2), little steel ball (3) is housed in each aperture, axially process internal thread along valve rod (1), contact with little steel ball (3) along a Cock screw of internal thread precession (4), process radially straight-tooth week in described valve gap (2) and the position that valve rod (1) combines.
2, the locking device of valve opening and closing state according to claim 1 is characterized in that: Cock screw (4) is an interior triangle Cock screw, and shape of leg-of-mutton shape and Valve key is complementary in it.
3, the locking device of valve opening and closing state according to claim 1 is characterized in that: described to mark closely the working surface that screw (4) contacts with little steel ball be conical surface, and its tapering is 90 °.
4, the locking device of valve opening and closing state according to claim 1 is characterized in that: described little steel ball (3) is a small ball, and its quantity is determined according to the wall thickness of valve rod and the ratio of small ball diameter, can is one, also can be several.
5, the locking device of valve opening and closing state according to claim 1 is characterized in that: described little steel ball (3) is a cylinder, and its working surface is processed into spherical.
6, the locking device of valve opening and closing state according to claim 1 is characterized in that: described valve gap (2) the radially degree of depth of straight-tooth is slightly less than the radius of firm ball.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520104291 CN2883842Y (en) | 2005-08-24 | 2005-08-24 | Locking means for open/close state of valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520104291 CN2883842Y (en) | 2005-08-24 | 2005-08-24 | Locking means for open/close state of valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2883842Y true CN2883842Y (en) | 2007-03-28 |
Family
ID=37956903
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520104291 Expired - Fee Related CN2883842Y (en) | 2005-08-24 | 2005-08-24 | Locking means for open/close state of valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2883842Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109268497A (en) * | 2018-11-12 | 2019-01-25 | 安徽江淮汽车集团股份有限公司 | Block head |
-
2005
- 2005-08-24 CN CN 200520104291 patent/CN2883842Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109268497A (en) * | 2018-11-12 | 2019-01-25 | 安徽江淮汽车集团股份有限公司 | Block head |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070328 |