CN202946756U - One-tooth difference indicator for non-rising stem valve - Google Patents
One-tooth difference indicator for non-rising stem valve Download PDFInfo
- Publication number
- CN202946756U CN202946756U CN 201220687288 CN201220687288U CN202946756U CN 202946756 U CN202946756 U CN 202946756U CN 201220687288 CN201220687288 CN 201220687288 CN 201220687288 U CN201220687288 U CN 201220687288U CN 202946756 U CN202946756 U CN 202946756U
- Authority
- CN
- China
- Prior art keywords
- valve
- driving gear
- gear
- driven gear
- tooth
- 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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- Indication Of The Valve Opening Or Closing Status (AREA)
Abstract
The utility model discloses a one-tooth difference indicator for a non-rising stem valve. A driving gear 4 is connected with a valve rod through a pin; an indicating plate 11 is fixed on an auxiliary wheel 15 by a bolt; a pointer 12 is also fixed on a driven gear 16 by a bolt; the driving gear 4 has the same teeth as the auxiliary wheel 15, but the driven gear 16 has one more tooth than the driving gear 4 and the auxiliary wheel 15; when the valve works, a hand wheel is rotated, the valve rod rotates and drives the driving gear 4 to rotate, and the driving gear 4 drives the driven gear 16; and when the auxiliary wheel 15 rotates, since the driven gear 16 has one more tooth than the driving gear 4, the numbers of turns of the two gears are different in rotation, the opening travel of the valve is calculated, and the pointer of the indicating plate points to the opening and closing positions of the valve. The one-tooth difference indicator disclosed by the utility model has compact structure, small volume and light weight, and the total weight is 48mm; the indicator can be sleeved on a bevel gear (BA device); the opening and closing of an indicating valve are accurate; and the whole indicator can finish the opening and closing indication simply by using three gears.
Description
Technical field
The utility model relates to a kind of ono-rising-stem valve indicator.
Background technique
Rotate handwheel when dark rod flat plate gate valve is opened, valve rod rotates in valve body, and valve rod does not rise, and valve working can not show the position that valve closing is still opened.It is large that past is copied Japanese indicator (nine sleeve gears) volume, and thickness 100mm brings a lot of troubles for production, manufacturing, cost, and according to the gear one poor principle of tooth, developing only needs three gear-driven indicators (See Figure).
Summary of the invention
The purpose of this utility model just is to overcome above-mentioned deficiency of the prior art.Below for illustrating:
Driving gear is connected with valve rod by pin, and direction board is fixed by bolts on accessory whorl, and pointer also is fixed by bolts on driven gear.The number of teeth of driving gear and accessory whorl is identical, but the many teeth of driven gear gear ratio driving gear and accessory whorl.Rotate handwheel when valve working, the valve rod rotation, the rotation of drive driving gear, driving gear drives driven gear, the accessory whorl rotation simultaneously, because driven gear is Duoed a tooth than driving gear, the number of turns that during rotation, two gears turn is different, by calculating the valve opening stroke and by direction board pointed valve opening, the position closed.
1-screw, 2-case lid, 3-casing, 4-driving gear, 5-O-ring seals 6-pin 7-gland 8-screw 9-O-ring seals 10-cloche 11-direction board 12-pointer 13-screw 14-screw 15-accessory whorl 16-driven gear
Claims (4)
1. an ono-rising-stem valve with a poor indicator of tooth, is connected with valve rod by the logical pin of driving gear 4, and direction board 11 is fixed by bolts on accessory whorl 15, and pointer 12 also is fixed by bolts on driven gear 16.
2. driving gear 4 is identical with the number of teeth of accessory whorl 15, but driven gear 16 gear ratio driving gears 4 and accessory whorl more than 15 one teeth.
3. rotate handwheel when valve working, the valve rod rotation, drive driving gear 4 rotations, driving gear 4 drives driven gear 16, accessory whorl 15 rotations simultaneously, than driving gear more than 4 one teeth, the number of turns that during rotation, two gears turn is different due to driven gear 16, by calculating the valve opening stroke and by direction board pointed valve opening, the position closed.
4. a kind of ono-rising-stem valve according to claim 1 with a poor indicator of tooth, is characterized in that: driven gear 16 gear ratio driving gears 4 and accessory whorl more than 15 one teeth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220687288 CN202946756U (en) | 2012-12-13 | 2012-12-13 | One-tooth difference indicator for non-rising stem valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220687288 CN202946756U (en) | 2012-12-13 | 2012-12-13 | One-tooth difference indicator for non-rising stem valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202946756U true CN202946756U (en) | 2013-05-22 |
Family
ID=48422458
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220687288 Expired - Fee Related CN202946756U (en) | 2012-12-13 | 2012-12-13 | One-tooth difference indicator for non-rising stem valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202946756U (en) |
-
2012
- 2012-12-13 CN CN 201220687288 patent/CN202946756U/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: 20130522 Termination date: 20161213 |