CN203009996U - Novel connecting device for valve - Google Patents
Novel connecting device for valve Download PDFInfo
- Publication number
- CN203009996U CN203009996U CN 201220647110 CN201220647110U CN203009996U CN 203009996 U CN203009996 U CN 203009996U CN 201220647110 CN201220647110 CN 201220647110 CN 201220647110 U CN201220647110 U CN 201220647110U CN 203009996 U CN203009996 U CN 203009996U
- Authority
- CN
- China
- Prior art keywords
- valve
- locking nut
- valve rod
- spool
- junction device
- 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 - Lifetime
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- Lift Valve (AREA)
Abstract
The utility model relates to a novel connecting device for a valve. The novel connecting device comprises a valve core (6) and a valve rod (1), and is characterized in that a locking nut (5) is sleeved on the valve rod (1), the locking nut (5) is arranged between the valve core (6) and the valve rod (1), a lug boss which is matched with a step in the valve core (6) is arranged below the locking nut (5), and a sealing device is installed between the lug boss and the step in the valve core (6) to prevent medium from flowing out; and the novel connecting device also comprises an anti-rotation sleeve (3), wherein the anti-rotation sleeve (3) is sleeved on the locking nut (5) and the valve rod (1), the upper part of the anti-rotation sleeve (3) is buckled with the valve rod (1) in a convex-concave matching way, and the lower part of the anti-rotation sleeve (3) is buckled with the valve core (6) in the convex-concave matching way. By designing an anti-locking assembly, the connection and anti-loosening problem of the valve core and the valve rod can be solved, and threaded holes and conical holes can be prevented from being machined in the valve core.
Description
Technical field
The utility model relates to a kind of valve New junction device.
Background technique
As shown in Figure 5, traditional spool and the Placement of valve rod are that thread mill drilling on spool is connected with valve rod, after tightening valve rod, joins at the spool cylindrical and bores the circular cone pin-and-hole, and the taper pin riveting is advanced in spool and valve rod.
Through the long-term proof of using, use such structural reliability not high in the coal dust delivery valve, higher to the processing request of spool, whole assembling inefficiency.
The model utility content
The purpose of this utility model is to provide a kind of valve New junction device, can reduce the requirement on machining accuracy to spool, cuts down finished cost simultaneously and simplifies the assembling mode.
A kind of valve New junction device, comprise spool and valve rod, its specialization is: be set with locking nut on described valve rod, and this locking nut is between spool and valve rod, be provided with the boss that coordinates with step in spool below this locking nut, prevent that medium from flowing out thereby seal arrangement is installed between the step in this boss and spool; Also comprise rotating prevention sleeve, this rotating prevention sleeve is sleeved on locking nut and valve rod, and is stuck and also is stuck by concavo-convex the cooperation between its underpart and spool by concavo-convex the cooperation between the top of this rotating prevention sleeve and valve rod; Wherein be fixed together by fastening piece between rotating prevention sleeve and locking nut.
Wherein adopt between locking nut and valve rod and be threaded.
Wherein seal arrangement adopts sealing gasket.
Wherein fastening piece adopts Cock screw.
Wherein along circumferentially having some straight troughs, thereby Cock screw is installed on locking nut.
The utility model is locked tight assembly by design, spool, valve rod connection and locking problem have been solved, can avoid thread mill drilling and conical bore on spool, through using proof, coal dust carry use this structure in angle valve after, the reliability that spool and valve rod connect obviously improves, and the difficulty of processing of spool is obviously reduced, spool, valve rod efficiency of assembling also improve greatly, change simultaneously standby redundancy convenient.
Description of drawings
Accompanying drawing 1 is structural representation of the present utility model;
Accompanying drawing 2 is the structural representation of spool in the utility model (6);
Accompanying drawing 3 is the structural representation of rotating prevention sleeve in the utility model (3);
Accompanying drawing 4 is the structural representation of locking nut in the utility model (5);
Accompanying drawing 5 is the structural representation of the utility model background technique.
Embodiment
As shown in Figure 1, the utility model is a kind of valve New junction device, comprise spool 6 and valve rod 1, be set with locking nut 5 on valve rod 1, adopt between locking nut 5 and valve rod 1 to be threaded, and this locking nut 5 is between spool 6 and valve rod 1, is provided with the boss that coordinates with step in spool 6 below this locking nut 5, thereby seal arrangement is installed between the step in this boss and spool 6 prevents that medium from flowing out, and specifically adopts sealing gasket 4.
Also comprise rotating prevention sleeve 3, this rotating prevention sleeve 3 is sleeved on locking nut 5 and valve rod 1 simultaneously, and is stuck and also is stuck by concavo-convex the cooperation between its underpart and spool 6 by concavo-convex the cooperation between the top of this rotating prevention sleeve 3 and valve rod 1.Be fixed together by fastening piece between rotating prevention sleeve 3 and locking nut 5, fastening piece specifically adopts Cock screw 2, thereby and along circumferentially evenly having 2-12 straight trough, Cock screw 2 is installed on locking nut 5.
Claims (5)
1. valve New junction device, comprise spool (6) and valve rod (1), it is characterized in that: be set with locking nut (5) on described valve rod (1), and this locking nut (5) is positioned between spool (6) and valve rod (1), be provided with the boss that coordinates with step spool (6) in this locking nut (5) below, at this boss and spool (6) thus in step between seal arrangement be installed prevent the medium outflow; Also comprise rotating prevention sleeve (3), this rotating prevention sleeve (3) is sleeved on locking nut (5) and valve rod (1), and is stuck and also is stuck by concavo-convex the cooperation between its underpart and spool (6) by concavo-convex the cooperation between the top of this rotating prevention sleeve (3) and valve rod (1); Wherein be fixed together by fastening piece between rotating prevention sleeve (3) and locking nut (5).
2. a kind of valve New junction device as claimed in claim 1 is characterized in that: wherein adopt between locking nut (5) and valve rod (1) to be threaded.
3. a kind of valve New junction device as claimed in claim 1 is characterized in that: wherein seal arrangement adopts sealing gasket (4).
4. a kind of valve New junction device as described in any one in claims 1 to 3 is characterized in that: wherein fastening piece adopts Cock screw (2).
5. a kind of valve New junction device as claimed in claim 4, is characterized in that: wherein at locking nut (5) thereby upward along circumferentially having some straight troughs installation Cock screws (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220647110 CN203009996U (en) | 2012-11-30 | 2012-11-30 | Novel connecting device for valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220647110 CN203009996U (en) | 2012-11-30 | 2012-11-30 | Novel connecting device for valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203009996U true CN203009996U (en) | 2013-06-19 |
Family
ID=48601593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220647110 Expired - Lifetime CN203009996U (en) | 2012-11-30 | 2012-11-30 | Novel connecting device for valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203009996U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103016838A (en) * | 2012-11-30 | 2013-04-03 | 吴忠仪表有限责任公司 | Anti-loose structure for connection of spool and valve rod |
-
2012
- 2012-11-30 CN CN 201220647110 patent/CN203009996U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103016838A (en) * | 2012-11-30 | 2013-04-03 | 吴忠仪表有限责任公司 | Anti-loose structure for connection of spool and valve rod |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130619 |
|
| CX01 | Expiry of patent term |