CN204201130U - A kind of valve - Google Patents
A kind of valve Download PDFInfo
- Publication number
- CN204201130U CN204201130U CN201420645472.8U CN201420645472U CN204201130U CN 204201130 U CN204201130 U CN 204201130U CN 201420645472 U CN201420645472 U CN 201420645472U CN 204201130 U CN204201130 U CN 204201130U
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- valve
- flap
- shaft part
- valve seat
- valve rod
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Abstract
The utility model provides a kind of valve, comprises valve rod, valve seat and flap; Valve rod offers mounting groove on the end face of valve seat, flap can be rotatably set in mounting groove away from one end of valve seat, the outer wall of flap is also provided with annular spacing groove, mounting groove is also provided with spacing spacing preiection in annular spacing groove rotationally on the sidewall of one end of valve seat, and spacing preiection can moving axially along valve rod in annular spacing groove.The utility model makes flap can be rotatably set in the mounting groove of valve rod, and by spacing for spacing preiection in the annular spacing groove of flap, thus realize being rotationally connected of flap and valve rod, the limit effect of spacing preiection is better, flap can be avoided to come off in mounting hole, thus improve the reliability that valve rod is connected with flap.Meanwhile, flap is embedded in the mounting groove of valve rod, the small volume taken after flap and valve rod compound, reduces the installing space that valve rod and flap need to take, can be applicable to small-bore valve.
Description
Technical field
The utility model relates to valve technology field, more particularly, relates to a kind of valve.
Background technique
Under normal circumstances, the Placement of screw thread or T-slot hook is adopted between the valve rod of valve and flap, but, the installing space adopting valve rod and flap when being threaded to need to take is comparatively large, causes being arranged in the valve body cavity of smaller diameter valve (usual DN<10); And during the mode adopting T-slot to link up with, because flap directly hangs in the annular groove of valve rod, come off so flap is easier from valve rod, reliability is lower.
In sum, how reducing the installing space that valve rod and flap need to take, to be applicable to small-bore valve, improve the reliability that valve rod is connected with flap simultaneously, is current those skilled in the art technical problems urgently to be resolved hurrily.
Model utility content
In view of this, the purpose of this utility model is to provide a kind of valve, to reduce the installing space that valve rod and flap need to take, thus can be applicable to small-bore valve, improve the reliability that valve rod is connected with flap simultaneously.
In order to achieve the above object, the utility model provides following technological scheme:
A kind of valve, comprises valve rod, valve seat and is arranged on the flap of described valve rod near one end of described valve seat; Described valve rod offers mounting groove on the end face of described valve seat, described flap can be rotatably set in described mounting groove away from one end of described valve seat, and the outer wall of described flap is also provided with annular spacing groove, described mounting groove is also provided with spacing spacing preiection in described annular spacing groove rotationally on the sidewall of one end of described valve seat, and described spacing preiection can moving axially along described valve rod in described annular spacing groove.
Preferably, in above-mentioned valve, described spacing preiection is annular protrusion.
Preferably, in above-mentioned valve, described valve rod has the first bar section and is arranged on the second bar section of described first bar section near described valve seat one end, and described mounting groove is opened in described second bar section, and the diameter of described second bar section is greater than the diameter of described first bar section.
Preferably, in above-mentioned valve, the cell wall thickness of described mounting groove near described valve seat one end is less than the cell wall thickness of the one end away from described valve seat.
Preferably, in above-mentioned valve, described annular protrusion by the thinner wall section of described mounting groove near described valve seat one end radially-inwardly roll extrusion form, the wall thickness of described thinner wall section is 1mm-2mm, and axial length is 3mm-4mm.
Preferably, in above-mentioned valve, described flap comprises the first shaft part, the second shaft part and the 3rd shaft part that are connected successively to the one end near described valve seat by the one end away from described valve seat; Described first shaft part can be rotatably set in described mounting groove, and described annular spacing groove is opened in described second shaft part.
Preferably, in above-mentioned valve, the diameter of described first shaft part is less than the diameter of described 3rd shaft part.
Preferably, in above-mentioned valve, described annular spacing groove runs through the whole axis of described second shaft part.
Preferably, in above-mentioned valve, described annular spacing groove is curve bath, described curve bath has the first semicircular arc groove face be connected with described first shaft part transition near one end of described first shaft part, described curve bath has the second semicircular arc groove face be connected with described 3rd shaft part transition near one end of described 3rd shaft part.
Preferably, in above-mentioned valve, described 3rd shaft part is the conical surface that can coordinate with described valve base sealing near one end of described valve seat.
As can be seen from above-mentioned technological scheme, the valve that the utility model provides comprises valve rod, valve seat and is arranged on the flap of valve rod near one end of valve seat; Wherein, valve rod offers mounting groove on the end face of valve seat, flap can be rotatably set in mounting groove away from one end of valve seat, and the outer wall of flap is also provided with annular spacing groove, mounting groove is also provided with spacing spacing preiection in annular spacing groove rotationally on the sidewall of one end of valve seat, and this spacing preiection can moving axially along valve rod in annular spacing groove.
The utility model is in the process of rotation valve rod throttle down, and after the sealing surface of flap and valve seat is slightly top, due to friction, flap no longer rotates; When being rotated further valve rod, valve rod and flap can form mutual rotation, and valve rod is in rotation and when axial motion, and the bottom land of the mounting groove of valve rod is pushed down flap away from the end face of valve seat one end and flap pressed to the sealing surface of valve seat, thus forms sealing.
The utility model makes flap can be rotatably set in the mounting groove of valve rod, and by rotatable for the spacing preiection of valve rod and can be axially movably spacing in the annular spacing groove of flap, thus realizes being rotationally connected of flap and valve rod.The limit effect of above-mentioned spacing preiection is better, and flap can be avoided to come off in mounting hole, thus improves the reliability that valve rod is connected with flap.
Meanwhile, because flap is embedded in the mounting groove of valve rod, so the small volume taken after flap and valve rod compound, thus reduce the installing space that valve rod and flap need to take, small-bore valve can be applicable to.
In addition, above-mentioned valve relatively simple for structure, part reduces, and is convenient to assembling.Each part also without the need to carrying out the processing of screw thread, thus reduces processing charges; And, when after valve rod and flap compound because flap can flexible rotating, so reduce the wearing and tearing that flap is subject to, improve working life.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the part-structure schematic diagram of the valve that the utility model embodiment provides.
Embodiment
The utility model embodiment provides a kind of valve, reduces the installing space that valve rod and flap need to take, thus can be applicable to small-bore valve, improve the reliability that valve rod is connected with flap simultaneously.
For making the object of the utility model embodiment, technological scheme and advantage clearly, below in conjunction with the accompanying drawing in the utility model embodiment, technological scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Please refer to accompanying drawing 1, the valve that the utility model embodiment provides comprises valve rod 1, valve seat and is arranged on the flap 2 of valve rod 1 near one end of valve seat; Wherein, valve rod 1 offers mounting groove on the end face of valve seat, flap 2 can be rotatably set in mounting groove away from one end of valve seat, and the outer wall of flap 2 is also provided with annular spacing groove 21, mounting groove is also provided with spacing spacing preiection 13 in annular spacing groove 21 rotationally on the sidewall of one end of valve seat, and this spacing preiection 13 can moving axially along valve rod 1 in annular spacing groove 21.It should be noted that, above-mentioned valve seat can be sealed and matched cut-off valve passage with flap 2, or is separated with flap 2 and opens valve passage.
The utility model is in the process of rotation valve rod 1 throttle down, and after flap 2 and the sealing surface of valve seat are slightly top, due to friction, flap 2 no longer rotates; When being rotated further valve rod 1, valve rod 1 and flap 2 can form mutual rotation, and valve rod 1 is in rotation and when axial motion, and the bottom land of the mounting groove of valve rod 1 is pushed down flap 2 away from the end face of valve seat one end and flap 2 pressed to the sealing surface of valve seat, thus forms sealing.
The utility model makes flap 2 can be rotatably set in the mounting groove of valve rod 1, and by rotatable for the spacing preiection 13 of valve rod 1 and can be axially movably spacing in the annular spacing groove 21 of flap 2, thus realizes being rotationally connected of flap 2 and valve rod 1.The limit effect of above-mentioned spacing preiection 13 is better, and flap 2 can be avoided to come off in mounting hole, thus improves the reliability that valve rod 1 is connected with flap 2.
Meanwhile, because flap 2 is embedded in the mounting groove of valve rod 1, so the small volume taken after flap 2 and valve rod 1 compound, thus reduce the installing space that valve rod 1 and flap 2 need to take, small-bore valve can be applicable to.
In addition, above-mentioned valve relatively simple for structure, part reduces, and is convenient to assembling.Each part also without the need to carrying out the processing of screw thread, thus reduces processing charges; And, when after valve rod 1 and flap 2 compound because flap 2 can flexible rotating, so reduce the wearing and tearing that flap 2 is subject to, improve working life.
Preferably, spacing preiection 13 is annular protrusion.Annular protrusion runs through the whole circumference of valve rod 1, and the surface of contact of itself and flap 2 is comparatively large, and support strength is better, and then ensure that limit effect, can also reduce the situation that annular protrusion deforms, further reduce the probability come off.Certainly, this spacing preiection 13 can also be two arc convex or multiple projection circumferentially arranged.
Concrete, valve rod 1 has the first bar section 11 and is arranged on the second bar section 12 of the first bar section 11 near valve seat one end, and above-mentioned mounting groove is opened in the second bar section 12, and the diameter of the second bar section 12 is greater than the diameter of the first bar section 11.The utility model makes valve rod 1 offer the position of mounting groove comparatively slightly, thus reduces the impact of mounting groove on valve rod 1 intensity, can ensure the intensity of valve rod 1 bottom.
In further technological scheme, the cell wall thickness of mounting groove near valve seat one end is less than the cell wall thickness of the one end away from valve seat.The utility model passes through in the cell wall head position i.e. position of close valve seat of mounting groove by little for the cylindrical car of valve rod 1, thus makes the cell wall head of mounting groove thinner, is convenient to roll out annular protrusion.
Preferably, annular protrusion by the thinner wall section of mounting groove near valve seat one end radially-inwardly roll extrusion form, the wall thickness of thinner wall section is 1mm-2mm, and axial length is 3mm-4mm.In the present embodiment, the head of the cell wall of mounting groove is the thin-walled of running length 3mm-4mm, is convenient to roll extrusion.
As shown in Figure 1, flap 2 comprises the first shaft part, the second shaft part and the 3rd shaft part that are connected successively to the one end near valve seat by the one end away from valve seat; First shaft part can be rotatably set in mounting groove, and annular spacing groove 21 is opened in the second shaft part.During processing valve rod 1, end in its underpart namely near valve seat processes mounting groove, and concrete is cylindrical groove, the diameter of this cylinder groove and the first shaft section diameter Spielpassung of flap 2, flap 2 flexible rotating can be made, the excesssive gap between flap 2 and valve rod 1 can be avoided again.
Preferably, the diameter of the first shaft part is less than the diameter of the 3rd shaft part.Now the size of the first shaft part is less, then also can be corresponding less to the mounting groove size that the first shaft part coordinates, thus reduces valve rod 1 size, reduces and takes up room.The diameter of above-mentioned first shaft part can also equal the diameter of the 3rd shaft part.
Concrete, annular spacing groove 21 runs through the whole axis of the second shaft part, and namely the outer wall of the second shaft part forms above-mentioned annular spacing groove 21.
In order to reduce the wearing and tearing to spacing preiection 13, annular spacing groove 21 is preferably curve bath, this curve bath has the first semicircular arc groove face be connected with the first shaft part transition near one end of the first shaft part, curve bath has the second semicircular arc groove face be connected with the 3rd shaft part transition near one end of the 3rd shaft part.The surface ratio of above-mentioned curve bath is rounder and more smooth, and in the process that valve rod 1 and flap 2 rotate, the frictional force of curve bath to spacing preiection 13 is less, improves the working life of spacing preiection 13.
Add man-hour, first annular spacing groove 21 (also referred to as neck) is processed at the second shaft part of flap 2, be placed on the mounting groove of valve rod 1 in the first shaft part of flap 2 after, the neck of flap 2 is positioned at the head thin-walled position of mounting groove, then the mode of roll extrusion is passed through by the neck of the head thin-walled position of valve rod 1 press-in flap 2, flap 2 is blocked, and ensures that flap 2 can flexible rotating and appropriate axial float simultaneously.
In order to optimize technique scheme further, above-mentioned 3rd shaft part is the conical surface that can coordinate with valve base sealing near one end of valve seat.This conical surface can be applicable to the valve seat of wide range of diameters, improves general context.Certainly, flap 2 can also be offseted by the sealing surface of plane and valve seat, to realize being sealed and matched.
In this specification, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar portion mutually see.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the utility model.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein when not departing from spirit or scope of the present utility model, can realize in other embodiments.Therefore, the utility model can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. a valve, comprises valve rod (1), valve seat and is arranged on the flap (2) of described valve rod (1) near one end of described valve seat, it is characterized in that, described valve rod (1) offers mounting groove on the end face of described valve seat, described flap (2) can be rotatably set in described mounting groove away from one end of described valve seat, and the outer wall of described flap (2) is also provided with annular spacing groove (21), described mounting groove is also provided with spacing spacing preiection (13) in described annular spacing groove (21) rotationally on the sidewall of one end of described valve seat, described spacing preiection (13) can in described annular spacing groove (21) moving axially along described valve rod (1).
2. valve as claimed in claim 1, it is characterized in that, described spacing preiection (13) is annular protrusion.
3. valve as claimed in claim 2, it is characterized in that, described valve rod (1) has the first bar section (11) and is arranged on the second bar section (12) of described first bar section (11) near described valve seat one end, described mounting groove is opened in described second bar section (12), and the diameter of described second bar section (12) is greater than the diameter of described first bar section (11).
4. valve as claimed in claim 3, it is characterized in that, the cell wall thickness of described mounting groove near described valve seat one end is less than the cell wall thickness of the one end away from described valve seat.
5. the valve as described in any one of claim 2-4, is characterized in that, described annular protrusion by the thinner wall section of described mounting groove near described valve seat one end radially-inwardly roll extrusion form, the wall thickness of described thinner wall section is 1mm-2mm, and axial length is 3mm-4mm.
6. valve as claimed in claim 2, is characterized in that, described flap (2) comprises the first shaft part, the second shaft part and the 3rd shaft part that are connected successively to the one end near described valve seat by the one end away from described valve seat; Described first shaft part can be rotatably set in described mounting groove, and described annular spacing groove (21) is opened in described second shaft part.
7. valve as claimed in claim 6, it is characterized in that, the diameter of described first shaft part is less than the diameter of described 3rd shaft part.
8. valve as claimed in claim 7, it is characterized in that, described annular spacing groove (21) runs through the whole axis of described second shaft part.
9. valve as claimed in claim 8, it is characterized in that, described annular spacing groove (21) is curve bath, described curve bath has the first semicircular arc groove face be connected with described first shaft part transition near one end of described first shaft part, described curve bath has the second semicircular arc groove face be connected with described 3rd shaft part transition near one end of described 3rd shaft part.
10. the valve as described in any one of claim 6-9, is characterized in that, described 3rd shaft part is the conical surface that can coordinate with described valve base sealing near one end of described valve seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420645472.8U CN204201130U (en) | 2014-10-31 | 2014-10-31 | A kind of valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420645472.8U CN204201130U (en) | 2014-10-31 | 2014-10-31 | A kind of valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204201130U true CN204201130U (en) | 2015-03-11 |
Family
ID=52659094
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420645472.8U Active CN204201130U (en) | 2014-10-31 | 2014-10-31 | A kind of valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204201130U (en) |
-
2014
- 2014-10-31 CN CN201420645472.8U patent/CN204201130U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |