CN201420866Y - Anti-turn valve rod - Google Patents
Anti-turn valve rod Download PDFInfo
- Publication number
- CN201420866Y CN201420866Y CN2008202229960U CN200820222996U CN201420866Y CN 201420866 Y CN201420866 Y CN 201420866Y CN 2008202229960 U CN2008202229960 U CN 2008202229960U CN 200820222996 U CN200820222996 U CN 200820222996U CN 201420866 Y CN201420866 Y CN 201420866Y
- Authority
- CN
- China
- Prior art keywords
- valve rod
- lower valve
- reversed
- neck
- utility
- 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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Abstract
The utility model discloses a two-seated adjusting valve, and in particular to an upper valve rod and a lower valve rod of the two-seated adjusting valve, which is characterized in that the upper endof the lower valve rod is provided with a reversed T-shaped neck, the lower end of the upper valve rod is provided with a reversed T-shaped fastening head which is matched with the reversed T-shape neck, the upper valve rod is clamped inside the neck on the upper end of the lower valve rod through the fastening head. The utility model is characterized in that the upper valve rod and the lower valve rod are separated to be mechanically processed and can be processed by an ordinary device, so that the processing is simple and the precision is high, and as long as the size and the precision of each component of the upper and the lower valve rods are ensured, the concentricity of the upper and the lower valve rods after being assembled can be ensured; and the neck and the fastening head are arranged to be of a reversed T-shaped structure, the rotation of the valve rod under the effect of the medium can be effectively prevented, thereby, the smooth motion of the upper and the lower valve rods after being assembled can be basically ensured. In addition, the processing cost is greatly reduced.
Description
Technical field
The utility model relates to the upper valve rod and the lower valve rod of a kind of regulating valve of two-seater, particularly regulating valve of two-seater.
Background technique
The upper valve rod of existing regulating valve of two-seater is to adopt screw thread to add bearing pin to be connected with lower valve rod, this structure is because the interior threaded hole difficulty of processing on the lower valve rod is bigger, precision is difficult to control, the assembly precision of upper and lower valve rod requires very high, cause the coaxiality deviation after upper and lower valve rod assembles bigger, the bite phenomenon often appears in upper and lower valve rod at the volley, has a strong impact on the usability of valve.For guaranteeing the coaxality after upper and lower valve rod connects, usually adopt the preceding made allowance of upper and lower valve rod assembling, finish fine finishing after the assembling again, because the length after the upper and lower valve rod assembling is longer, the longest present about 2200mm, the diameter of upper and lower valve rod differs bigger in addition, adopts this mode to increase difficulty of processing, coaxality after upper and lower valve rod connects is still undesirable, can't solve the bite problem that occurs in the motion.
Make and do not occur the bite problem in the upper and lower stem movement, must solve the coaxality after upper and lower valve rod assembles, so just increased the requirement of machining accuracy, become difficult contradiction that is in harmonious proportion technically, how a kind of easy processing and the comparatively desirable upper and lower valve rod of assembling back coaxality are provided, become the current technical problem that needs to be resolved hurrily.
The model utility content
Upper valve rod and the lower valve rod that aims to provide a kind of simple in structure, easy processing of the present utility model, the coaxality height after this upper valve rod and the lower valve rod assembling, it is smooth and easy to move.
The inventor realizes the purpose of this utility model by the assembly structure that changes upper valve rod and lower valve rod, and concrete technological scheme is:
A kind of anti-rotating valve rod, comprise upper valve rod and lower valve rod, have an inverse-T-shaped draw-in groove in the upper end of lower valve rod, be provided with an inverse-T-shaped clamping head that mates mutually with inverse-T-shaped draw-in groove in the lower end of upper valve rod, the clamping head of upper valve rod by its lower end is sticked in the draw-in groove of upper end of lower valve rod.
For the processing of draw-in groove and clamping head, adopt common equipment to process, processing is simple and precision is higher, and this is a general knowledge well-known in the art; Characteristics of the present utility model are that upper and lower valve rod separately carries out machining, only need to guarantee the size and the precision of upper and lower each part of valve rod, also just guarantee the coaxality after upper and lower valve rod assembles; Draw-in groove and clamping head are set to inverse-T-shaped matching structure, can effectively prevent the rotation of lower valve rod under the medium effect, thereby motion is smooth and easy after fundamentally having guaranteed upper valve rod and lower valve rod assembling, and in addition, processing cost of the present utility model also reduces greatly.
Description of drawings
Fig. 1 is that master of the present utility model looks sectional view;
Fig. 2 is that B of the present utility model is to view;
Fig. 3 is that A-A of the present utility model is to sectional view.
Among the figure, upper valve rod 1, lower valve rod 2, draw-in groove 3 and clamping 4.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples:
A kind of anti-rotating valve rod, comprise upper valve rod 1 and lower valve rod 2, have an inverse-T-shaped draw-in groove 3 in the upper end of lower valve rod 2, be provided with in the lower end of upper valve rod 1 one with the inverse-T-shaped clampings 4 of coupling mutually of inverse-T-shaped draw-in groove 3, the clamping of upper valve rod 1 by its lower end 4 is sticked in the draw-in groove 3 of upper end of lower valve rod 2, under the effect of draw-in groove 3, clamping 4 therein can not about or upper and lower displacement, simultaneously, clamping 4 and draw-in groove 3 to combine precision higher, lower valve rod 2 can not rotate under the medium effect.
Claims (1)
1, a kind of anti-rotating valve rod, comprise upper valve rod and lower valve rod, it is characterized in that having an inverse-T-shaped draw-in groove in the upper end of lower valve rod, be provided with an inverse-T-shaped clamping head that mates mutually with inverse-T-shaped draw-in groove in the lower end of upper valve rod, the clamping head of upper valve rod by its lower end is sticked in the draw-in groove of upper end of lower valve rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008202229960U CN201420866Y (en) | 2008-11-26 | 2008-11-26 | Anti-turn valve rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008202229960U CN201420866Y (en) | 2008-11-26 | 2008-11-26 | Anti-turn valve rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201420866Y true CN201420866Y (en) | 2010-03-10 |
Family
ID=41807523
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008202229960U Expired - Lifetime CN201420866Y (en) | 2008-11-26 | 2008-11-26 | Anti-turn valve rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201420866Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107389450A (en) * | 2017-08-28 | 2017-11-24 | 江苏恒神股份有限公司 | General cylindrical shell based carbon fiber product axial compression test frock |
-
2008
- 2008-11-26 CN CN2008202229960U patent/CN201420866Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107389450A (en) * | 2017-08-28 | 2017-11-24 | 江苏恒神股份有限公司 | General cylindrical shell based carbon fiber product axial compression test frock |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100310 |